Antibodies bispecific. Medical search

Antibodies, often monoclonal, in which the two antigen-binding sites are specific for separate ANTIGENIC DETERMINANTS. They are artificial antibodies produced by chemical crosslinking, fusion of HYBRIDOMA cells, or by molecular genetic techniques. They function as the main mediators of targeted cellular cytotoxicity and have been shown to be efficient in the targeting of drugs, toxins, radiolabeled haptens, and effector cells to diseased tissue, primarily tumors.

Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).

Antibodies produced by a single clone of cells.

The property of antibodies which enables them to react with some ANTIGENIC DETERMINANTS and not with others. Specificity is dependent on chemical composition, physical forces, and molecular structure at the binding site.

An ansa macrolide isolated from the MAYTENUS genus of East African shrubs.

Combinations of diagnostic or therapeutic substances linked with specific immune substances such as IMMUNOGLOBULINS; MONOCLONAL ANTIBODIES; or ANTIGENS. Often the diagnostic or therapeutic substance is a radionuclide. These conjugates are useful tools for specific targeting of DRUGS and RADIOISOTOPES in the CHEMOTHERAPY and RADIOIMMUNOTHERAPY of certain cancers.

A form of antibodies consisting only of the variable regions of the heavy and light chains (FV FRAGMENTS), connected by a small linker peptide. They are less immunogenic than complete immunoglobulin and thus have potential therapeutic use.

The largest of polypeptide chains comprising immunoglobulins. They contain 450 to 600 amino acid residues per chain, and have molecular weights of 51-72 kDa.

Immunoglobulins produced in response to VIRAL ANTIGENS.

Exclusive legal rights or privileges applied to inventions, plants, etc.

Actinium. A trivalent radioactive element and the prototypical member of the actinide family. It has the atomic symbol Ac, atomic number 89, and atomic weight 227.0278. Its principal isotope is 227 and decays primarily by beta-emission.

A novel composition, device, or process, independently conceived de novo or derived from a pre-existing model.

The most well known avian paramyxovirus in the genus AVULAVIRUS and the cause of a highly infectious pneumoencephalitis in fowl. It is also reported to cause CONJUNCTIVITIS in humans. Transmission is by droplet inhalation or ingestion of contaminated water or food.

Solid dosage forms, of varying weight, size, and shape, which may be molded or compressed, and which contain a medicinal substance in pure or diluted form. (Dorland, 28th ed)

An acute febrile, contagious, viral disease of birds caused by an AVULAVIRUS called NEWCASTLE DISEASE VIRUS. It is characterized by respiratory and nervous symptoms in fowl and is transmissible to man causing a severe, but transient conjunctivitis.

Glycoprotein from Sendai, para-influenza, Newcastle Disease, and other viruses that participates in binding the virus to cell-surface receptors. The HN protein possesses both hemagglutinin and neuraminidase activity.

Vaccines or candidate vaccines designed to prevent or treat cancer. Vaccines are produced using the patient's own whole tumor cells as the source of antigens, or using tumor-specific antigens, often recombinantly produced.

Complex of at least five membrane-bound polypeptides in mature T-lymphocytes that are non-covalently associated with one another and with the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL). The CD3 complex includes the gamma, delta, epsilon, zeta, and eta chains (subunits). When antigen binds to the T-cell receptor, the CD3 complex transduces the activating signals to the cytoplasm of the T-cell. The CD3 gamma and delta chains (subunits) are separate from and not related to the gamma/delta chains of the T-cell receptor (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA).

Small antigenic determinants capable of eliciting an immune response only when coupled to a carrier. Haptens bind to antibodies but by themselves cannot elicit an antibody response.

Univalent antigen-binding fragments composed of one entire IMMUNOGLOBULIN LIGHT CHAIN and the amino terminal end of one of the IMMUNOGLOBULIN HEAVY CHAINS from the hinge region, linked to each other by disulfide bonds. Fab contains the IMMUNOGLOBULIN VARIABLE REGIONS, which are part of the antigen-binding site, and the first IMMUNOGLOBULIN CONSTANT REGIONS. This fragment can be obtained by digestion of immunoglobulins with the proteolytic enzyme PAPAIN.

Bone marrow-derived lymphocytes that possess cytotoxic properties, classically directed against transformed and virus-infected cells. Unlike T CELLS; and B CELLS; NK CELLS are not antigen specific. The cytotoxicity of natural killer cells is determined by the collective signaling of an array of inhibitory and stimulatory CELL SURFACE RECEPTORS. A subset of T-LYMPHOCYTES referred to as NATURAL KILLER T CELLS shares some of the properties of this cell type.

Partial immunoglobulin molecules resulting from selective cleavage by proteolytic enzymes or generated through PROTEIN ENGINEERING techniques.

Immunotherapy of human tumors with T-cell-activating bispecific antibodies: stimulation of cytotoxic pathways in vivo. (1/429)

Bispecific monoclonal antibodies (Bi-mAbs) specific for a tumor-associated antigen and the CD3 or CD28 antigen on T lymphocytes represent one of the most successful experimental strategies for the immunotherapy of cancer. We report that the in vivo administration of both alpha-CD3/CD30 and alpha-CD28/CD30 Bi-mAbs results in the specific activation of xenotransplanted, resting human T cells infiltrating the CD30-positive Hodgkin's tumor. Bi-mAb treatment resulted in enhanced expression of cytokines such as interleukin 1beta, interleukin 2, tumor necrosis factor type alpha, and activation markers including Ki-67, CD25, and CD45RO in tumor-infiltrating lymphocytes. This antigen-dependent, local T-cell stimulation led to the activation of the cytolytic machinery in T lymphocytes, determined by the up-regulation of mRNA-encoding perforin and the cytotoxic serine-esterases granzymes A and B. The Bi-mAb-induced generation of CTLs depended on the presence of the CD30 antigen and the combined application of both Bi-mAbs. Our findings suggest that the combined application of T-cell-activating Bi-mAbs is able to achieve a tumor site-specific activation of the T-cell cytolytic machinery in vivo. The fact that these cytotoxic cells do not home in tumor-associated antigen-negative tissue and do not enter circulation might explain our previous observations (C. Renner et al., Blood, 87: 2930-2937, 1996) of a high cure rate in preclinical models even at an advanced stage of disease. (+info)

Dual specificity antibodies using a double-stranded oligonucleotide bridge. (2/429)

The covalent conjugation of oligonucleotides to antibody Fab' fragments was optimized by using oligonucleotides modified with a hexaethylene linker arm bearing three amino groups. One oligonucleotide was coupled to antibody of one specificity and a complementary oligonucleotide to antibody of a second specificity. The antibodies were then allowed to hybridize by base pairing of the complementary nucleotide sequences and the generation of bispecific antibody was analyzed on SDS-PAGE and confirmed using BIAcore analysis. The strategy of complementary oligonucleotide-linked bispecific molecules is not limited to antibodies but is applicable to linking any two molecules of different characteristics. (+info)

An effective strategy of human tumor vaccine modification by coupling bispecific costimulatory molecules. (3/429)

A new, generally applicable procedure is described for the introduction of defined costimulatory molecules into human cancer cells to increase their T-cell stimulatory capacity. The procedure involves infection with Newcastle disease virus to mediate the cell surface binding of costimulatory molecules (e.g., specially designed bispecific antibodies (bsAb)). The modification is independent of tumor cell proliferation and laborious recombinant gene technology and can be applied directly to freshly isolated and gamma-irradiated patient-derived tumor cells as an autologous cancer vaccine. Following the infection of tumor cells with a nonvirulent strain of Newcastle disease virus, the cells are washed and then further modified by coincubation with bsAbs, which attach with one arm to the viral hemagglutinin-neuraminidase (HN) molecule on the infected tumor cells. The second specificity of one bsAb (bs HN x CD28) is directed against CD28 to augment antitumor T-cell responses by selectively channeling positive costimulatory signals via the CD28 pathway. A second bsAb (bs HN x CD3) was produced to deliver T-cell receptor-mediated signals either alone (bsCD3 vaccine) or in combination with anti-CD28 (bsCD3 vaccine plus bsCD28 vaccine). In human T-cell stimulation studies in vitro, the bsCD28 vaccine caused an up-regulation of early (CD69) and late (CD25) T-cell activation markers on CD4 and CD8 T lymphocytes from either normal healthy donors or cancer patients (autologous system) and induced tumor cytostasis in nonmodified bystander tumor cells. In addition, in combination with the bsCD3 vaccine, augmented antitumor cytotoxicity and T-cell proliferative responses were observed. This tumor vaccine modification procedure is highly specific, quick, economic, and has a broad range of clinical applications. (+info)

Carcinoembryonic antigen (CEA)-specific T-cell activation in colon carcinoma induced by anti-CD3 x anti-CEA bispecific diabodies and B7 x anti-CEA bispecific fusion proteins. (4/429)

Two bispecific recombinant molecules, an anti-CD3 x anti-carcinoembryogenic antigen (CEA) diabody and a B7 x anti-CEA fusion protein, were tested for their capacity to specifically activate T cells in the presence of CEA-expressing colon carcinoma cells. T-cell activation by the anti-CD3 x anti-CEA diabody required close contact to CEA-positive cells and resulted in diabody-mediated cytotoxicity against the target cells. Additionally, CD28-mediated costimulation in combination with anti-CD3 x anti-CEA diabodies induced activation of autologous T cells in CEA-positive primary colon carcinoma specimens, as determined by flow cytometry. The high specificity of the bispecific diabody approach could be further enhanced by the use of B7 x anti-CEA fusion proteins because the costimulatory CD28-signaling to the T cells strictly depended on the expression of CEA on the target cells. We demonstrate that displaying engagement sites for the T-cell antigens CD3 and CD28 on the surface of colon carcinoma cells is a suitable way to activate and retarget T cells in a highly tumor-specific manner. For clinical purposes, B7 x anti-tumor-associated antigen (TAA) fusion proteins, which are equally effective but more specific compared with anti-CD28 monoclonal anti-bodies, thus may improve the tumor specificity of anti-CD3 x anti-TAA bispecific antibodies. Furthermore, B7-negative tumors can be converted into B7-positive tumors by B7 x anti-TAA fusion proteins without the need for B7 gene transfer to the malignant cells. (+info)

Two-step targeting and dosimetry for small cell lung cancer xenograft with anti-NCAM/antihistamine bispecific antibody and radioiodinated bivalent hapten. (5/429)

The "affinity enhancement system," a two-step targeting technique using bispecific antibody and radiolabeled bivalent hapten, has been reported to be useful for carcinoembryonic antigen-expressing tumors. The purpose of this study was to evaluate the efficacy of this method for targeting human small cell lung cancer using an antineural cell adhesion molecule antibody. METHODS: Antineural cell adhesion molecule/antihistamine bispecific antibody NK1NBL1-679 was prepared by coupling an equimolecular quantity of a Fab' fragment of NK1NBL1 to a Fab fragment of antihistamine 679. Athymic mice inoculated with NCI-H69 small cell lung cancer cells expressing neural cell adhesion molecule were administered bispecific antibody and then 48 h later 125I-labeled bivalent histamine hapten. 125I-labeled intact NK1NBL1 was injected into other groups of mice. Biodistributions were examined as a function of time. RESULTS: In mice of the two-step targeting, tumor uptake was 2.5 +/- 0.2, 3.2 +/- 0.4, 6.4 +/- 2.0, 7.2 +/- 2.7, 6.1 +/- 2.1 and 2.2 +/- 0.4 %ID/g at 5, 30 min, 5, 24, 48 and 96 h, and tumor-to-blood, tumor-to-liver and tumor-to-kidney ratios were 1.4 +/- 1.1, 10.8 +/- 13.2 and 4.6 +/- 4.7, respectively, at 5 h, whereas 125I-labeled NK1NBL1 showed a tumor uptake of 5.7 +/- 0.4 %ID/g and tumor-to-blood, tumor-to-liver and tumor-to-kidney ratios of 0.3 +/- 0.1, 1.1 +/- 0.2 and 0.9 +/- 0.1, respectively, at 5 h. These results were confirmed by autoradiographic studies, which demonstrated clear tumor-to-normal tissue contrast. Dosimetry showed that the affinity enhancement system could enhance the therapeutic potential of the antineural cell adhesion molecule antibody NK1NBL1. CONCLUSION: This two-step targeting method seems promising for the diagnosis and therapy of small cell lung cancer. (+info)

Expression and characterization of bispecific single-chain Fv fragments produced in transgenic plants. (6/429)

We describe the expression of the bispecific antibody biscFv2429 in transgenic suspension culture cells and tobacco plants. biscFv2429 consists of two single-chain antibodies, scFv24 and scFv29, connected by the Trichoderma reesi cellobiohydrolase I linker. biscFv2429 binds two epitopes of tobacco mosaic virus (TMV): the scFv24 domain recognizes neotopes of intact virions, and the scFv29 domain recognizes a cryptotope of the TMV coat protein monomer. biscFv2429 was functionally expressed either in the cytosol (biscFv2429-cyt) or targeted to the apoplast using a murine leader peptide sequence (biscFv2429-apoplast). A third construct contained the C-terminal KDEL sequence for retention in the ER (biscFv2429-KDEL). Levels of cytoplasmic biscFv2429 expression levels were low. The highest levels of antibody expression were for apoplast-targeted biscFv2429-apoplast and ER-retained biscFv2429-KDEL that reached a maximum expression level of 1.65% total soluble protein in transgenic plants. Plant-expressed biscFv2429 retained both epitope specificities, and bispecificity and bivalency were confirmed by ELISA and surface plasmon resonance analysis. This study establishes plant cells as an expression system for bispecific single-chain antibodies for use in medical and biological applications. (+info)

Novel tetravalent and bispecific IgG-like antibody molecules combining single-chain diabodies with the immunoglobulin gamma1 Fc or CH3 region. (7/429)

Although bispecific IgG molecules have been successfully applied for antibody-mediated immunotherapy of tumours, applicability is hampered by the difficulties associated with their generation. In the present study, we have used a bispecific single-chain diabody (scDb) directed against carcinoembryonic antigen and Escherichia coli beta-galactosidase as a model to generate bispecific IgG-like antibody molecules. We show that the fusion of this single-chain diabody to the Fc (scDb-Fc) or CH3 (scDb-CH3) region of the human immunoglobulin gamma1 chain results in the expression of dimeric fusion proteins exhibiting four functional antigen binding sites with increased functional affinity. This strategy represents a new and convenient way to generate IgG-like multivalent and bispecific molecules that are efficiently secreted from mammalian cells. (+info)

Simultaneous activation of T cells and accessory cells by a new class of intact bispecific antibody results in efficient tumor cell killing. (8/429)

Bispecific Abs (bsAb) are promising immunological tools for the elimination of tumor cells in minimal residual disease situations. In principle, they target an Ag on tumor cells and recruit one class of effector cell. Because immune reactions in vivo are more complex and are mediated by different classes of effector cell, we argue that conventional bsAb might not yield optimal immune responses at the tumor site. We therefore constructed a bsAb that combines the two potent effector subclasses mouse IgG2a and rat IgG2b. This bispecific molecule not only recruits T cells via its one binding arm, but simultaneously activates FcgammaR+ accessory cells via its Fc region. We demonstrate here that the activation of both T lymphocytes and accessory cells leads to production of immunomodulating cytokines like IL-1beta, IL-2, IL-6, IL-12, and DC-CK1. Thus this new class of bsAb elicits excellent antitumor activity in vitro even without the addition of exogenous IL-2, and therefore represents a totally self-supporting system. (+info)

The furthest developed of these are bispecific tandem di-scFvs, known as bi-specific T-cell engagers (BiTE antibody constructs ... "Expression and purification of monospecific and bispecific recombinant antibody fragments derived from antibodies that block ... Kufer, Peter; Lutterbüse, Ralf; Baeuerle, Patrick A. (2004). "A revival of bispecific antibodies" (PDF). Trends in ... Hollinger, Philipp; Prospero, T; Winter, G (July 1993). ""Diabodies": small bivalent and bispecific antibody fragments". ...

https://en.wikipedia.org/wiki/Single-chain_variable_fragment

31 (4). Guy DG, Uy GL (October 2018). "Bispecific Antibodies for the Treatment of Acute Myeloid Leukemia". Curr Hematol Malig ... Flotetuzumab (INN; development code MGD006) is a bispecific antibody designed for the treatment of acute myeloid leukemia. This ... a focus on monoclonal antibodies and immune checkpoint inhibitors". Curr. Opin. Hematol. 25 (2): 136-145. doi:10.1097/MOH. ... "Integrated Pharmacokinetic/Pharmacodynamic Model of a Bispecific CD3xCD123 DART Molecule in Nonhuman Primates: Evaluation of ...

https://en.wikipedia.org/wiki/Flotetuzumab

These bispecific monoclonal antibodies are sometimes referred to as mAb2. Antibody Fab region Protein tag Janeway, CA, Jr.; et ... Fcab fragments can be inserted into a full immunoglobulin by swapping the Fc region, thus obtaining a bispecific antibody (with ... This property allows antibodies to activate the immune system. In IgG, IgA and IgD antibody isotypes, the Fc region is composed ... By contrast, the Fc region of all antibodies in a class are the same for each species; they are constant rather than variable. ...

https://en.wikipedia.org/wiki/Fragment_crystallizable_region

The beginning of the pretargeting concept was based on bispecific antibodies which were able to bind a specific target antigen ... Owing to the high molecular weight of antibodies and the Fc domain of the antibody, a slow clearance from the blood and non- ... However, these types of antibodies turned out to be quite troublesome, due to the triggering of the human anti-murine antibody ... "Recombinant Bispecific Monoclonal Antibodies Prepared by the Dock-and-Lock Strategy for Pretargeted Radioimmunotherapy". ...

https://en.wikipedia.org/wiki/Pretargeting_(imaging)

2014). "Generation of bispecific IgG antibodies by structure-based design of an orthogonal Fab interface". Nature Biotechnology ... designed fusions for bispecific antibodies, and progress toward vaccines. DeLano Award for Computational Biosciences Feynman ...

https://en.wikipedia.org/wiki/Brian_Kuhlman

This approach is similar to the one taken in the development of bispecific monoclonal antibodies. In a study, the plasma half- ... Since they are not structurally related to antibodies, they are classified as a type of antibody mimetic. Avimers have been ... Half-life can be increased by binding them to antibodies. A library theoretically containing up to 1023 different A domains ... They have improved heat stability compared with antibodies, but limited plasma half-life because of their smaller size. ...

https://en.wikipedia.org/wiki/Avimer

Morecki S, Lindhofer H, Yacovlev E, Gelfand Y, Slavin S (Feb 2006). "Use of trifunctional bispecific antibodies to prevent ... Krolick KA, Uhr JW, Slavin S, Vitetta ES (Jun 1982). "In vivo therapy of a murine B cell tumor (BCL1) using antibody-ricin A ... Herman Waldmann, Slavin was the first to introduce the use of an anti-CD52 monoclonal antibody (CAMPATH-1; Alemtuzumab and ... focusing on the use of activated donor lymphocytes targeted against cancer with monoclonal and bispecific antibodies for ...

https://en.wikipedia.org/wiki/Shimon_Slavin

Genentech was able to demonstrate in mouse models that the new bispecific antibody was able to reach therapeutic levels in the ... They utilized a mouse bispecific antibody with two active sites performing different functions. One arm had a low-affinity anti ... Researchers at Genentech proposed the creation of a bispecific antibody that could bind the BBB membrane, induce receptor- ... This way, the amount of transported antibody is based on the concentration of antibody on either side of the barrier. The other ...

https://en.wikipedia.org/wiki/Transcytosis

Bispecific antibody fragments, such as anti-CD19/CD16, allow the targeting of immunotherapeutic drugs to the cancer cell. Anti- ... These receptors bind to the Fc portion of IgG antibodies, which then activates antibody-dependent cell-mediated cytotoxicity ( ... In addition, CD16 could play a role in antibody-targeting cancer therapies. FcγRIV, a murine homologue of CD16A has been shown ... After binding to ligands such as the conserved section of IgG antibodies, CD16 on human NK cells induce gene transcription of ...

https://en.wikipedia.org/wiki/CD16

... is a bi-specific monoclonal antibody composed of two different heavy chains and two different light chains. One arm ... Vanucizumab (INN; development code RG7221) is an experimental humanized monoclonal antibody designed for the treatment of ... The antibody is designed to inhibit both VEGF-A and Ang2 simultaneously to offer superior clinical benefit compared to VEGF-A ... of the antibody binds Angiopoietin-2 (Ang2) and the other is based on bevacizumab (Avastin), binding Vascular Endothelial ...

https://en.wikipedia.org/wiki/Vanucizumab

NI-1701, an anti-CD47, anti-CD19 bispecific antibody in development for treatment of B-cell hematological cancers. NI-1801, an ... anti-mesothelin bispecific antibody in the preclinical phase of development for treatment of solid tumors. No drugs have been ... NI-0401, an anti-CD3ε antibody being developed in partnership with Tiziana Life Sciences. Phase II trials in patients with ... "First in Human Study of an Anti-Toll-like Receptor 4 (TLR4) Monoclonal Antibody (NI-0101) in Adult Healthy Volunteers - Full ...

https://en.wikipedia.org/wiki/Novimmune

Nithiyanandam developed a bispecific antibody composed of two different Fab' fragments: one fragment from an anti-oligomeric ... Nithiyanandam's bispecific antibody is conjugated to a quantum dot with MRI and fNIR detection capabilities. Nithiyanandam's in ... vitro studies suggest that the bispecific antibody quantum dot conjugate has little cross-reactivity and could potentially ...

https://en.wikipedia.org/wiki/Krtin_Nithiyanandam

In-vitro and in-vivo activity of CIK cells in conjunction with bispecific antibodies, cross-linking cytotoxic effector cells ... "Cytokine-induced killer cells targeted by the novel bispecific antibody CD19xCD5 (HD37xT5.16) efficiently lyse B-lymphoma cells ... "Enhanced killing of primary ovarian cancer by retargeting autologous cytokine-induced killer cells with bispecific antibodies: ... Indeed, the engagement of CD16a on CD3+CD56+ cells led to a potent antibody-dependent cell-mediated cytotoxicity (ADCC) both in ...

https://en.wikipedia.org/wiki/Cytokine-induced_killer_cell

... a bispecific antibody, inhibits tumor progression and angiogenesis". mAbs. 8 (5): 892-904. doi:10.1080/19420862.2016.1171432. ... "Anti-Nogo-A antibodies prevent vascular leakage and act as pro-angiogenic factors following stroke". Scientific Reports. 9 (1 ...

https://en.wikipedia.org/wiki/Angiogenesis

Antibodies to GITR have been shown to promote an anti-tumor response through loss of Treg lineage stability. The biotech ... The German biotech company Pieris Pharmaceuticals has developed an engineered lipocalin that is bi-specific for CD137 and HER2 ... Anti-OX40 monoclonal antibodies have been shown to have clinical utility in advanced cancer. The pharma company AstraZeneca has ... "CDX-1127 - Monoclonal Antibody Targeting CD27". Celldex Therapeutics. He LZ, Prostak N, Thomas LJ, Vitale L, Weidlick J, ...

https://en.wikipedia.org/wiki/Immune_checkpoint

... (trade name Hemlibra) is a humanized bispecific antibody for the treatment of haemophilia A, developed by Chugai (a ... May 2016). "Factor VIII-Mimetic Function of Humanized Bispecific Antibody in Hemophilia A". The New England Journal of Medicine ... a novel factor VIII-mimetic bispecific antibody, in healthy subjects". Blood. 127 (13): 1633-41. doi:10.1182/blood-2015-06- ...

https://en.wikipedia.org/wiki/Emicizumab

TaiMed inked licensing agreement with the ADARC for bispecific monoclonal antibody technology. Park, Alice (25 January 2010). " ...

https://en.wikipedia.org/wiki/Aaron_Diamond_AIDS_Research_Center

Like other bispecific antibodies, and unlike ordinary monoclonal antibodies, solitumab forms a link between T cells and its ... June 2009). "Antitumor activity of an EpCAM/CD3-bispecific BiTE antibody during long-term treatment of mice in the absence of T ... Solitomab (INN; development code MT110) is an artificial bispecific monoclonal antibody that is being investigated as an anti- ... It is a fusion protein consisting of two single-chain variable fragments (scFvs) of different antibodies on a single peptide ...

https://en.wikipedia.org/wiki/Solitomab

Sun LL (2015). "Anti-CD20/CD3 T cell-dependent bispecific antibody for the treatment of B cell malignancies". Sci Transl Med. 7 ... Kim CH (2013). "Bispecific small molecule-antibody conjugate targeting prostate cancer". PNAS. 110 (44): 17796-17801. Bibcode: ... Frankel SR (2013). "Targeting T cells to tumor cells using bispecific antibodies". Curr Opin Chem Biol. 17 (3): 385-392. doi: ... In addition to antibody fragments, non‐antibody‐based approaches have also been used to direct CAR specificity, usually taking ...

https://en.wikipedia.org/wiki/Chimeric_antigen_receptor_T_cell

Similarly, ample research shows that combined blockade of TNFa and IL-17 with bispecific antibodies reveals an inhibition of ... Monoclonal antibodies, most commonly studied being 12F4.1H7, work to specifically suppress ADAMTS-5-induced aggrecan release. ...

https://en.wikipedia.org/wiki/Artificial_cartilage

PLOS One Owais M, Kazmi S, Tufail S, Zubair S. An alternative chemical redox method for the production of bispecific antibodies ... 182550). The monoclonal antibody bearing liposomes with encapsulated chq were found to be highly effective in the treatment of ... It was further demonstrated that the entrapment of anti-malarial drugs like chloroquine (chq), in the antibody-coated liposomes ... Encouraged by these results, the liposomes were coated with F(ab')2 fragments of a monoclonal antibody which specifically ...

https://en.wikipedia.org/wiki/Owais_Mohammad

TCRs, like antibodies, constitute an important antigen recognition system within the immune system; but, whereas antibodies are ... a mechanism of action used by several other bi-specific biologics such as the Bi-specific T-cell engagers (BiTEs). After ... This picomolar affinity binding results in the diseased cells becoming coated in CD3 co-receptor specific scFv antibody ... ImmTACs (Immune mobilising monoclonal T-cell receptors Against Cancer) are a class of bispecific biological drug being ...

https://en.wikipedia.org/wiki/ImmTAC

... antibodies, bispecific MeSH D12.776.377.715.548.114.143 - antibodies, blocking MeSH D12.776.377.715.548.114.167 - antibodies, ... antibodies MeSH D12.776.377.715.548.114.071 - antibodies, anti-idiotypic MeSH D12.776.377.715.548.114.107 - antibodies, ... antibodies, helminth MeSH D12.776.377.715.548.114.191 - antibodies, heterophile MeSH D12.776.377.715.548.114.224 - antibodies, ... hiv antibodies MeSH D12.776.377.715.548.114.254.150.500 - htlv-i antibodies MeSH D12.776.377.715.548.114.254.150.510 - htlv-ii ...

https://en.wikipedia.org/wiki/List_of_MeSH_codes_(D12.776)

... antibodies, bispecific MeSH D12.776.124.486.485.114.143 - antibodies, blocking MeSH D12.776.124.486.485.114.167 - antibodies, ... antibodies, bispecific MeSH D12.776.124.790.651.114.143 - antibodies, blocking MeSH D12.776.124.790.651.114.167 - antibodies, ... antibodies MeSH D12.776.124.486.485.114.071 - antibodies, anti-idiotypic MeSH D12.776.124.486.485.114.089 - antibodies, ... antibodies, helminth MeSH D12.776.124.486.485.114.191 - antibodies, heterophile MeSH D12.776.124.486.485.114.224 - antibodies, ...

https://en.wikipedia.org/wiki/List_of_MeSH_codes_(D12.776.124)

... an acronym for bi-specific T-cell engagers, a class of specific modified antibodies BITE Model (Behavior, Information, Thought ...

https://en.wikipedia.org/wiki/Bite_(disambiguation)

... hence the name of bispecific antibodies. This antibody fragment is part of the modular antibody technology of F-star ... Fcabs are antibodies fragments engineered from the constant region of an antibody (Fc). In naturally occurring antibodies (such ... This type of antibodies are therefore able to recognise two different antigens, one at their Fab region and a second one at the ... Fc fragments with engineered HER2/neu-binding sites and antibody properties". Protein Eng Des. 23 (4): 289-297. doi:10.1093/ ...

https://en.wikipedia.org/wiki/Fcab

Adapter molecules Bi-specific adapter molecules can be administered along with the virus to redirect viral coat protein tropism ... These molecules are fusion proteins that are made up of an antibody raised against the knob domain of the adenovirus coat ...

https://en.wikipedia.org/wiki/Oncolytic_adenovirus

2 million grant to MSKCC to fund the development of a bispecific monoclonal antibody targeting neuroblastoma. The ... Because the antibody also binds to peripheral nerve cells, the treatment is painful, but it is generally without long-term ... "Humanized 3F8 Monoclonal Antibody (Hu3F8) in Patients With High-Risk Neuroblastoma and GD2-Positive Tumors - Full Text View". ... The Band of Parents' first project was the development of a humanized antibody, Hu3F8. In addition to surgery, chemotherapy and ...

https://en.wikipedia.org/wiki/Band_of_Parents

CXCL10 and an anti-FAP/anti-CD3 bispecific T-cell activator In Jan 2015 the European Medicines Agency's (EMA) Committee for ... This vector contains two transgenes expressing the heavy and light chains for a secreted CD40 agonist monoclonal antibody. NG- ... an Oncolytic Adenoviral Vector Which Expresses an Anti-CD40 Antibody) v t e. ...

https://en.wikipedia.org/wiki/Enadenotucirev

A Novel CD19-directed recombinant bispecific antibody derivative with enhanced immune effector functions for human leukemic ... Effective elimination of acute myeloid leukemic cells by recombinant bispecific antibody derivatives directed against CD33 and ... and trispecific antibodies, i.e. the triplebodies. These molecules present antibody-derivatives and small molecules which ... is his stated scientific goal and personal vision to contribute to the development of innovative drugs on the basis of antibody ...

https://en.wikipedia.org/wiki/Fuat_Oduncu

Blinatumomab, a CD19-CD3 bi-specific monoclonal murine antibody, currently shows promise as a novel pharmacotherapy. By ... In this therapy, mice are immunized with the CD19 antigen and produce anti-CD19 antibodies. Hybridomas developed from mouse ... An extensive panel of monoclonal antibodies to cell surface markers, particularly CD or cluster of differentiation markers, are ... The cDNA is sequenced and the sequence encoding the variable heavy and variable light chains of these antibodies are cloned ...

https://en.m.wikipedia.org/wiki/Acute_lymphoblastic_leukemia

An antibody can be called monospecific if it has specificity for the same antigen or epitope,[48] or bispecific if they have ... Antibody mimetic[edit]. Antibody mimetics are organic compounds that, like antibodies, can specifically bind antigens. They are ... Asymmetrical antibodies[edit]. Heterodimeric antibodies, which are also asymmetrical and antibodies, allow for greater ... How Lymphocytes Produce Antibody from Cells Alive!. *Antibody applications Fluorescent antibody image library, University of ...

https://en.wikipedia.org/wiki/Antibody

Whole antibody. *bispecific: Trifunctional antibody. Fab fragment. *F(ab')2 fragment / Fab' fragment ... Fab antibodies also have diagnostic use. Arcitumomab is a mouse antibody that recognizes Carcinoembryonic antigen, an antigen ... The antigen-binding fragment (Fab) is a region on an antibody that binds to antigens. It is composed of one constant and one ... An antibody digested by pepsin yields two fragments: a F(ab')2 fragment and a pFc' fragment ...

https://en.wikipedia.org/wiki/Fragment_antigen-binding

Muller K.M (1998). "The first constant domain (CH1 and CL) of an antibody used as heterodimerization domain for bispecific ... Antibody mimeticEdit. Antibody mimetics are organic compounds that, like antibodies, can specifically bind antigens. They are ... How Lymphocytes Produce Antibody from Cells Alive!. *Antibody applications Fluorescent antibody image library, University of ... Asymmetrical antibodiesEdit. Heterodimeric antibodies, which are also asymmetrical and antibodies, allow for greater ...

https://en.m.wikipedia.org/wiki/Antibody

Bi-specific T-cell engager source is the species on which the protein sequence of the antibody is based: source. output ... Monoclonal antibody drugs[మార్చు]. Set the parameter type=mab. This form of the box uses a different subset of parameters, mab_ ... Shortened Monoclonal antibody form: {{Infobox drug , type = mab , image = , alt = , mab_type = ,!-- mab, Fab, F(ab')2, Fab', ... Full Monoclonal antibody template with extended fields: {{Infobox drug , type = mab , image = , width = , alt = , image2 = , ...

https://te.wikipedia.org/wiki/మూస:Drugbox

"Targeting of indium 111-labeled bivalent hapten to human melanoma mediated by bispecific monoclonal antibody conjugates: ...

https://en.wikipedia.org/wiki/Giant-cell_carcinoma_of_the_lung

... bispecific antibody - bispecific monoclonal antibody - bisphosphonate - bizelesin - BL22 immunotoxin - black cohosh - black ... monoclonal antibody - monoclonal antibody 3F8 - monocyte - Montanide ISA-51 - Morinda citrifolia - morphology - motexafin ... antibody - antibody therapy - anticachexia - anticancer antibiotic - anticarcinogenic - anticoagulant - anticonvulsant - ... CC-49 monoclonal antibody - CC-5013 - CC-8490 - CCI-779 - CD34 antigen - CD40-ligand - CEA - CEA assay - cecum - cefalexin - ...

https://en.wikipedia.org/wiki/Index_of_oncology_articles

Trifunctional antibodies were the first type of bispecific monoclonal antibodies to be produced. The first concepts date back ... antibody as well as pure mouse and pure rat antibody. The trifunctional antibody is extracted chromatographically with protein ... Chames, P; Baty, D (2009). "Bispecific antibodies for cancer therapy: the light at the end of the tunnel". MAbs. 1 (6): 1-9. ... Choi, BD; et, al.; Bigner, DD; Mehta, AI; Kuan, CT; Sampson, JH (2011). "Bispecific antibodies engage T cells for antitumor ...

https://en.wikipedia.org/wiki/Trifunctional_antibody

Bispecific monoclonal antibody entry in the public domain NCI Dictionary of Cancer Terms Bispecific+antibodies at the US ... "A review of bispecific antibodies and antibody constructs in oncology and clinical challenges". Pharmacology & Therapeutics. ... Two bispecific antibodies are presently in clinical use. Blinatumomab, which targets CD19 and CD3, is used in the treatment of ... A bispecific monoclonal antibody (BsMAb, BsAb) is an artificial protein that can simultaneously bind to two different types of ...

https://en.wikipedia.org/wiki/Bispecific_monoclonal_antibody

Bispecific Antibodies. Bispecific Antibodies combine two or more antigen-recognizing elements into a single construct, able to ... The DutaMab™ technology platform further enables the development of bi-specific antibodies on a single arm of the antibody that ... Monoclonal Antibodies. Monoclonal Antibodies (MAbs) are antibodies that are made by identical immune cells, cloned from a ... we also have designed a new format for bispecific antibodies, called CrossMAbs (where MAb stands for Monoclonal Antibody). In ...

https://www.roche.com/research_and_development/what_we_are_working_on/research_technologies/protein-related_technologies/bispecific_antibodies.htm

Bispecific antibodies capable of simultaneously binding two targets have been studied for many years with a view to their ... Camel single-domain antibodies as modular building units in bispecific and bivalent antibody constructs. J. Biol. Chem. 276 (10 ... Trifunctional Triomab ® antibodies for cancer therapy. In: Bispecific Antibodies. Ed. Kontermann R.E. Berlin: Springer-Verlag, ... Development of tetravalent, bispecific CCR5 antibodies with antiviral activity against CCR5 monoclonal antibody-resistant HIV-1 ...

https://link.springer.com/article/10.1134/S0026893318020176

Platforms for creating higher-order antibodies are streamlining development, reducing risks for patients, and optimizing tumor ... Here, newly engineered bispecific and multispecific antibodies will be put to the test. Such antibodies may engage two or more ... Bispecific, Multispecific Antibodies Grapple with Cancer. Platforms for novel antibody constructs take hold in cancer ... Moving from mono- to bispecific antibodies. One company that is leveraging its success in developing monospecific antibodies ...

https://www.genengnews.com/insights/bispecific-multispecific-antibodies-grapple-with-cancer/

Roche has invented the CrossMAb technology to produce bispecific antibodies. Theres one cell line, and one production process ... A new generation of biologically engineered antibody drugs - bispecifics - combine the binding specificity of two antibodies in ... Therapeutic antibodies have improved treatments of complex diseases such as cancer, viral infections and inflammatory diseases ... Bispecific antibodies currently are in clinical trials. 60%. of bispecific antibodies in clinical trials are bringing immune ...

https://www.roche.com/research_and_development/what_we_are_working_on/research_technologies/bispecific-antibodies.htm

The bispecific antibody 9202.1/5411 lowers histamine release from RBL cells transfected with human FcεRI and human FcγRIIb and ... Bispecific antibodies, which simultaneously recognize two different antigens, hold great therapeutic potential, but their broad ... They used their strategy to successfully generate a bispecific antibody that inhibits the activation of the high affinity IgE ... Development of a Two-part Strategy to Identify a Therapeutic Human Bispecific Antibody That Inhibits IgE Receptor Signaling ...

http://www.asbmb.org/asbmbtoday/asbmbtoday_biobits_detail.aspx?id=8750

Antibody drug conjugates and bispecific antibodies allow the selective targeting of potent small molecule toxins or cytotoxic T ... Bispecific antibody targeting prostate cancer. Chan Hyuk Kim, Jun Y. Axup, Brian R. Lawson, Hwayoung Yun, Virginie Tardif, Sei ... Bispecific antibody targeting prostate cancer. Chan Hyuk Kim, Jun Y. Axup, Brian R. Lawson, Hwayoung Yun, Virginie Tardif, Sei ... chemically defined bispecific antibodies (17). In an effort to explore further semisynthetic approaches to generate bispecific ...

https://www.pnas.org/content/110/44/17796

Bispecific Antibodies - Antibodies developed in the laboratory to recognize more than one protein on the surface of different ... Examples include bispecific antibodies 2B1, 520C9xH22, mDX-H210, and MDX447, is clearly explained in Medindia s glossary of ... Medical Word - Bispecific Antibodies. Ans : Antibodies developed in the laboratory to recognize more than one protein on the ... Bispecific Antibodies - Glossary. Written & Compiled by Medindia Content Team. Medically Reviewed by The Medindia Medical ...

https://www.medindia.net/glossary/bispecific_antibodies.htm

Research will focus on applying the bispecific platform to target immuno-oncology checkpoints, with pre-clinical data set to be ... Home Drug Discovery Antibodies Immune Pharma Licenses Bispecific Antibody Technology from Atlante Biotech ... The bispecific antibody demonstrated direct anticancer effects in vitro, as well as in vivo antitumor activity and improved ... Immune Pharma Licenses Bispecific Antibody Technology from Atlante Biotech. December 28, 2015. 0 ...

https://www.genengnews.com/topics/drug-discovery/immune-pharma-licenses-bispecific-antibody-technology-from-atlante-biotech/

1. A pharmaceutical composition comprising a bispecific single chain antibody construct, said bispecific single chain antibody ... said bispecific single chain antibody construct in said CHO cell and recovering the produced bispecific single chain antibody ... the antibody construct as claimed was a monomeric bispecific single-chain antibody molecule, as also reflected by the molecular ... This is the same arrangement as the claimed antibody constructs. The antibody disclosed in document D3 is not bispecific, ...

http://www.epo.org/law-practice/case-law-appeals/recent/t122159eu1.html

... by Lisa M. Jarvis November 30, 2019 , APPEARED IN VOLUME 97, ISSUE 47 ... a bispecific antibody that targets B-cell maturation antigen, and to add six targets to the firms existing discovery deal. ...

https://cen.acs.org/pharmaceuticals/oncology/AbbVie-Harpoon-expand-bispecific-antibody/97/i47

The clinical application of such a combined therapy with ATV-NDV vaccine cells and bi-specific antibodies allows to modify the ... We tested for further improvement of vaccine efficiency the addition of two bispecific single-chain antibodies. They bind with ... Optimization studies for the coupling of bispecific antibodies to viral anchor molecules of a tumor vaccine ... This was not the case when the bispecific reagents bound to separate viral molecules (HN or F, respectively). When using ...

https://www.ingentaconnect.com/content/sp/ijo/2010/00000037/00000005/art00016

A bispecific antibody containing a 4G7 hybridoma secreting IgG1 antibody specific for B-lymphocytes and a monoclonal antibody ... bispecific antibody 4G7xH22 A bispecific antibody containing a 4G7 hybridoma secreting IgG1 antibody specific for B-lymphocytes ... and a monoclonal antibody targeting Fc gamma RI-expressing cells. Check for active clinical trials using this agent. (NCI ...

https://www.cancer.gov/publications/dictionaries/cancer-drug/def/bispecific-antibody-4g7xh22

Bispecific antibodies are being studied in the imaging and treatment of cancer. ... A type of antibody that can bind to two different antigens at the same time. ... bispecific antibody listen (BY-speh-SIH-fik AN-tee-BAH-dee) A type of antibody that can bind to two different antigens at the ... Bispecific antibodies are being studied in the imaging and treatment of cancer. They are made in the laboratory. ...

https://www.cancer.gov/publications/dictionaries/cancer-terms/def/bispecific-antibody?redirect=true

... we investigate the potential of an engineered tandem bispecific broadly neutralizing antibody (bs-bnAb) as an innovative ...

https://www.jci.org/articles/view/96764/figure/6

Computationally Designed Bispecific Antibodies using Negative State Repertoires. Title: Computationally Designed Bispecific ... Computationally Designed Bispecific Antibodies using Negative State Repertoires Journal Article - in OSTI.gov collection Leaver ... Computationally Designed Bispecific Antibodies using Negative State Repertoires. United Kingdom: N. p., Web. doi:10.1016/j.str. ... Computationally Designed Bispecific Antibodies using Negative State Repertoires. United Kingdom. doi:10.1016/j.str.2016.02.013 ...

https://www.osti.gov/pages/biblio/1435856-computationally-designed-bispecific-antibodies-using-negative-state-repertoires

At ASCO, researchers presented preclinical and translational data on GBR 1302 (Glenmark), a HER-2 and CD3 bispecific antibody ... Investigators also presented a trial-in-progress poster about GBR 1342 (Glenmark), a CD38 and CD3 bispecific antibody under ... I think bispecific molecules are showing the promise where you can infiltrate these immune cells into the solid tumors and ... spoke with HemOnc Today at ASCO Annual Meeting about the companys bispecific T-cell engager platform. ...

https://www.healio.com/news/hematology-oncology/20180614/video-asco-data-highlights-promise-of-bispecific-antibodies

Novartis has signed a collaboration and licensing deal with California biotech Xencor for access to its bispecific antibody ... Novartis has signed a collaboration and licensing deal with California biotech Xencor for access to its bispecific antibody ... mid single-digit tiered royalties for worldwide sales of the four proprietary Novartis bi-specific molecules, and low single- ... and Novartis also gets global rights to Xencors bispecific technology to develop and commercialise four additional targets, ...

http://www.pharmatimes.com/news/novartis_picks_up_bispecific_antibodies_from_xencor_1051534

Increasing numbers of companies are showing curiosity for the development of Bi-Specific Antibodies for the treatment of ... Growing Inclination of Biopharmaceutical Companies towards Bi-Specific Antibodies. ... Bi-specific antibody is one of the most potentially powerful tools which have emerged in the biopharmaceutical industry. The bi ... "Increasing numbers of companies are showing curiosity for the development of Bi-Specific Antibodies for the treatment of ...

https://www.prlog.org/12700956-growing-inclination-of-biopharmaceutical-companies-towards-bi-specific-antibodies.html

Roche group Genentech said its bispecific antibody ACE910 has picked up a breakthrough designation in the US for the ... Roche group Genentech said its bispecific antibody ACE910 has picked up a breakthrough designation in the US for the ... ACE910 is an investigational humanised bispecific monoclonal antibody engineered by Roche group Chugai to mimic the function of ...

http://www.pharmatimes.com/news/roches_bispecific_antibody_gets_breakthrough_status_for_haemophilia_971848

has obtained the IND approval from regulators for its HER2 bispecific antibody, KN-026. The phase I trials will commence later ... Home » Alphamabs bispecific antibody gets clinical approval in China. Looking to read the full article? Subscribe to BioWorld. ... has obtained the IND approval from regulators for its HER2 bispecific antibody, KN-026. The phase I trials will commence later ...

https://www.bioworld.com/articles/334213-alphamab-s-bispecific-antibody-gets-clinical-approval-in-china?v=preview

... the high potential of bispecific antibodies in the field of immuno-oncology is eliciting a renewed interest from pharmaceutical ... by rapid advances in antibody engineering and the development of several technological platforms such as Triomab or bispecific ... bispecific antibody; cancer immunotherapy; NK cells; T-cells; immune effector cells; immuno-checkpoint bispecific antibody; ... "Taking up Cancer Immunotherapy Challenges: Bispecific Antibodies, the Path Forward?" Antibodies 5, no. 1: 1. ...

https://www.mdpi.com/2073-4468/5/1/1

... Global Bispecific Antibody Market Opportunity, Drug Sales ... 1.2 Overview of Bispecific Monoclonal Antibody. 1.3 Advantage of Bispecific Antibodies upon Monospecific Monoclonal Antibodies ... Global Bispecific Antibody Market Growth: 118% CAGR (2015 -2019). *Global Bispecific Antibody Market Growth In 2019: 280% (, US ... "Global Bispecific Antibody Market Opportunity, Drug Sales & Clinical Trials Insight 2026" Report Highlight:. *Global Bispecific ...

https://www.medgadget.com/2020/02/global-bispecific-antibody-market-to-surpass-usd-10-billion-by-2026.html

... to antibody fragments. Impressively, antibody fragments such as bispecific T-cell engager [BiTE], bispecific killer cell ... to antibody fragments. Impressively, antibody fragments such as bispecific T-cell engager [BiTE], bispecific killer cell ... Moreover, bispecific/multispecific antibodies that target more than one antigen or epitope on a target cell or recruit effector ... Moreover, bispecific/multispecific antibodies that target more than one antigen or epitope on a target cell or recruit effector ...

https://www.frontiersin.org/articles/10.3389/fimmu.2017.00038/full

... and numerous antibodies have been approved for the treatment of several severe diseases or are currently in clinical... ... Monoclonal antibodies have emerged as an effective therapeutic modality, ... Bispecific antibody Single-chain variable fragment (scFv) Disulfide-stabilized Fv antibody fragment (dsFv) CrossMab Knobs-into- ... Bispecific Antibody Derivatives Based on Full-Length IgG Formats. In: Proetzel G., Ebersbach H. (eds) Antibody Methods and ...

https://link.springer.com/protocol/10.1007/978-1-61779-931-0_16

TOKYO:4519) announced results from two global phase lll studies for Chugais bispecific antibody emicizumab (ACE910): ... Chugais Bispecific Antibody Emicizumab to Present Results of Two Pivotal Phase lll Studies at ISTH ... global phase lll studies for Chugais bispecific antibody emicizumab (ACE910): the primary analysis of HAVEN 1 study ( ... Overseas, Chugai Pharmabody Research based in Singapore is engaged in research focusing on the generation of novel antibody ...

https://www.businesswire.com/news/home/20170625005056/en/Chugais-Bispecific-Antibody-Emicizumab-Present-Results-Pivotal

CTLA-4 bispecific antibody enters clinical trial - read this article along with other careers information, tips and advice on ... Alphamab Oncologys first-in-class PD-L1 - CTLA-4 bispecific antibody enters clinical trial. Published: Oct 10, 2018 ... Alphamab has developed in house the next-generation immune-oncology program KN046, a bispecific antibody targeting both PD-L1 ... 10, 2018 /PRNewswire/ -- Alphamab Oncology announced that its proprietary humanized PD-L1 - CTLA-4 bispecific antibody (product ...

https://www.biospace.com/article/releases/alphamab-oncology-s-first-in-class-pd-l1-ctla-4-bispecific-antibody-enters-clinical-trial/

July 10, 2017. The New England Journal of Medicine has published two articles and an editioral in conjunction with the International Society of Thrombosis and Haemostasis meeting being held in Berlin, Germany, July 8-13, 2017. The articles include information on novel hemophilia treatment products currently in clinical trial. Click on the links below to read the articles in […]. ...

https://www.hemophiliafed.org/news-stories/tag/bi-specific-antibody/

Aptevo Therapeutics Bispecific Antibody APVO436 Shows Robust T-Cell Activation With Minimal Cytokine Release. Email Print ... APVO436 is an optimized, next generation bispecific antibody candidate designed to simultaneously target CD123 and CD3 and ... ALG.APV-527 - a bispecific antibody candidate, partnered with Alligator Bioscience, featuring a novel mechanism of action ... Focused on generating novel, targeted bispecific antibody-based immunotherapies for cancer and autoimmune diseases, the ADAPTIR ...

http://www.globenewswire.com/news-release/2018/04/16/1472088/0/en/Aptevo-Therapeutics-Bispecific-Antibody-APVO436-Shows-Robust-T-Cell-Activation-With-Minimal-Cytokine-Release.html

Bispecific immunoliposomes should be useful for dual targeting addressing inter- and intratumoral heterogeneity of tumor ... The dual-targeted immunoliposomes retained binding activity for both antigens and combined the selectivity of both antibodies ... applying a step-wise insertion of antibody-coupled micelles into preformed PEGylated liposomes. ... Antibody fragments, especially single-chain Fv fragments, have been established for the generation of immunoliposomes for ...

http://www.mdpi.com/2073-4468/1/2/199/notes

Monoclonal Antibodies (MAbs) are antibodies that are made by identical immune cells, cloned from a single parent cell. (roche.com)
Cancer immunotherapy with ordinary monoclonal antibodies does not activate T-lymphocytes because the Fab regions are already used for binding the tumour cells, and this type of cell does not have Fc receptors. (wikipedia.org)
Therapeutic monoclonal antibodies have become molecules of choice to treat autoimmune disorders, inflammatory diseases, and cancer. (frontiersin.org)
Monoclonal antibodies have emerged as an effective therapeutic modality, and numerous antibodies have been approved for the treatment of several severe diseases or are currently in clinical development. (springer.com)
To improve their therapeutic potential, monoclonal antibodies are constantly evolved by protein engineering. (springer.com)
Weiner LM, Surana R, Wang S (2010) Monoclonal antibodies: versatile platforms for cancer immunotherapy. (springer.com)
MONROVIA, Calif.--( BUSINESS WIRE )-- Xencor Inc. (NASDAQ:XNCR), a clinical-stage biopharmaceutical company developing engineered monoclonal antibodies for the treatment of cancer and autoimmune diseases, today announced the presentation of new data from multiple preclinical XmAb ® bispecific antibody programs and its preclinical IL-12-Fc cytokine program at the 35th Annual Meeting of the Society for Immunotherapy of Cancer (SITC). (biospace.com)
L. G. Lum, R. Rathore, and H. E. Lum, Targeting of Prostate Cancer with T Cells Armed with OKT3 x Anti-HER2/New Bispecific Monoclonal Antibodies(Biabs) , 29 edition, 2001. (hindawi.com)
As a therapeutic target for HER2-overexpressing cancer ( 4 ), monoclonal antibodies have been developed to target HER2-positive tumors (5-7). (spandidos-publications.com)
Monoclonal antibodies have emerged as a very successful class of therapeutic agents. (inserm.fr)
In their native format, monoclonal antibodies are monospecific in that they recognize only one epitope, but their Fc domain also binds to FcfR-expressing cells. (inserm.fr)
These include three bispecific monoclonal antibodies (bsAbs). (medindia.net)
High throughput LabChip ® ProteinEXact ™ to evaluate the fragmentation of monoclonal antibodies after heat stress, and analyze different forms of bsAbs from cell culture supernatants. (perkinelmer.com)
First-generation bispecific platforms significantly alter the structure of monoclonal antibodies or rely upon complex and proprietary manufacturing processes. (bctechnology.com)
Azymetric™ bispecifics, in contrast, retain the desirable drug-like qualities of monoclonal antibodies, including long half-life, stability and low immunogenic potential, which increases their probability of success. (bctechnology.com)
0.01%) and the relatively high nonspecific uptake with the directly labeled monoclonal antibodies (in whole immunoglobulin G or fragment form) used in most studies. (snmjournals.org)
MacroGenics, a Maryland company, is a clinical-stage biopharma that discovers innovative monoclonal antibodies for cancer. (seekingalpha.com)
Compared with mAb (monoclonal antibodies), they are proven by many studies to have better potency and improved safety. (genscript.com)
It would take only 3-5 months for SMAB screening and evaluation and 14-15 months for preclinical CMC development, which is highly efficient and produces deliverables with equivalent developability as monoclonal antibodies. (genscript.com)
Xencor, Inc. (NASDAQ: XNCR), a clinical-stage biopharmaceutical company developing engineered monoclonal antibodies for the treatment of cancer and autoimmune diseases, today announced the presentation of new preclinical data from three XmAb ® 2+1 bispecific antibody programs and its IL-12-Fc cytokine program during the second session of the American Association for Cancer Research (AACR) Virtual Annual Meeting. (ariva.de)
The third case study examines binary mixtures of monoclonal antibodies with different biophysical properties and how DLS helps investigate whether the antibodies mutually impair their physical stability in solution. (biopharminternational.com)
Examine a DLS-based approach to characterizing binary mixtures of monoclonal antibodies. (biopharminternational.com)
Otherwise, overt production of inflammatory cytokines and secondary reactions may occur as side effects, as can be observed with constitutively T-cell activating monoclonal antibodies to CD3 or CD28, and with bispecific antibodies bearing Fcγ portions. (ovid.com)
scFvs offer several advantages over monoclonal antibodies as carriers of radionuclei and drugs to tumors, including greater tumour penetration due their small size, low kidney uptake, rapid blood clearance and a lower negative response by the human immune system. (fusionantibodies.com)
Immunotherapies with monoclonal antibodies (mABs) directed against the CD20 antigen have previously been shown to be highly effective. (biomedcentral.com)
Monoclonal antibodies (mAbs) are currently among the best remedies in the treatment of cancer disorders. (semanticscholar.org)

Fundamentally, their engineered expression platforms focus on streamlining novel antibody development, reducing the risk factors to patients, and optimizing tumor destruction. (genengnews.com)

Bispecific Antibodies combine two or more antigen-recognizing elements into a single construct, able to bind to two or more targets. (roche.com)
Here we report a site-specific, semisynthetic method for the production of bispecific antibody-like therapeutics in which a derivative of the prostate-specific membrane antigen-binding small molecule DUPA was selectively conjugated to a mutant αCD3 Fab containing the unnatural amino acid, p-acetylphenylalanine, at a defined site. (pnas.org)
Expanding on an earlier pact, AbbVie will pay Harpoon Therapeutics $50 million for an option to license HPN217, a bispecific antibody that targets B-cell maturation antigen, and to add six targets to the firms' existing discovery deal. (acs.org)
A bispecific monoclonal antibody (BsMAb, BsAb) is an artificial protein that can simultaneously bind to two different types of antigen. (wikipedia.org)
Naturally occurring antibodies typically only target one antigen. (wikipedia.org)
If you look at solid tumors, where some [chimeric antigen receptor T-cell therapies and checkpoint inhibitors ] have not been effective, I think bispecific molecules are showing the promise where you can infiltrate these immune cells into the solid tumors and actually have an impact," Reddy told HemOnc Today . (healio.com)
Moreover, bispecific/multispecific antibodies that target more than one antigen or epitope on a target cell or recruit effector cells (T cell, natural killer cell, or macrophage cell) toward target cells have shown great potential to maximize the benefits of antibody therapy. (frontiersin.org)
Promisingly, crystallizable fragment (Fc) antigen-binding fragment and monomeric antibody or half antibody may be particularly advantageous to target solid tumors owing to their small size and thus good tissue penetration potential while, on the other hand, keeping Fc-related effector functions such as antibody-dependent cellular cytotoxicity, complement-dependent cytotoxicity, antibody-dependent cell-mediated phagocytosis, and extended serum half-life via interaction with neonatal Fc receptor. (frontiersin.org)
Fab arms are responsible for antigen binding and have been extensively engineered for developing highly specific and synthetic antibodies against numerous targets ( 4 ). (frontiersin.org)
Bostrom J, Yu SF, Kan D et al (2009) Variants of the antibody herceptin that interact with HER2 and VEGF at the antigen binding site. (springer.com)
The B7-H3 x CD28 bispecific antibody activated T cells only in the presence of the B7-H3 antigen and did not demonstrate super-agonism, consistent with Xencor's CD28 platform design. (biospace.com)
For pretargeting, these peptides were used in combination with a bsMAb composed of the anti-HSG Fab′ that was covalently coupled with the Fab′ of either an anticarcinoembryonic antigen or an anticolon-specific antigen-p antibody to provide tumor targeting capability. (aacrjournals.org)
This bispecific antibody format was created by fusing single-domain antibodies directed against the carcinoembryonic antigen and the activating FcγRIIIa receptor to human Cκ and CH1 immunoglobulin G1 domains, acting as a natural dimerization motif. (nih.gov)
Studies in nonobese diabetic/severe combined immunodeficient gamma mice xenografted with carcinoembryonic antigen-positive tumor cells showed that Fab-like bispecific molecules in the presence of human peripheral blood mononuclear cells significantly slow down tumor growth. (nih.gov)
A monoclonal antibody that binds two different types of antigen. (healthboard.com)
We found that bispecific CD95 antibodies targeting the neuronal glial antigen-2 induce CD95-mediated apoptosis selectively in glioblastoma cells expressing this target antigen. (aacrjournals.org)
We constructed a bispecific antibody that is composed of a rapidly internalizing antibody binding to a tumor-associated antigen, ephrin receptor A2 (EphA2), and a noninternalizing antibody binding to a highly expressed tumor-associated antigen, activated leukocyte cell adhesion molecule (ALCAM). (aacrjournals.org)
We found that the overall internalization property of the bispecific is profoundly impacted by the relative surface expression level (antigen density ratio) of EphA2 versus ALCAM. (aacrjournals.org)
When the EphA2-to-ALCAM ratio is greater than a threshold level (1:5), the amount of the bispecific taken into the tumor cell exceeds what is achieved by either the monoclonal internalizing antibody or a mixture of the two antibodies, showing a bispecific-dependent amplification effect where a small amount of the internalizing antigen EphA2 induces internalization of a larger amount of the noninternalizing antigen ALCAM. (aacrjournals.org)
We developed a bispecific antibody targeting ephrin receptor A2 (EphA2), a rapidly internalizing antigen, and activated leukocyte cell adhesion molecule (ALCAM), a non- or slowly internalizing antigen, and found that the bispecific becomes internalized when the ratio of EphA2 to ALCAM is greater than approximately 1:5. (aacrjournals.org)
In a study of patients with metastatic colorectal cancer, the novel carcinoembryonic antigen T-cell bispecific (CEA-TCB) antibody was evaluated as a monotherapy and in combination with atezolizumab (Tecentriq). (onclive.com)
In the present study, a bispecific antibody was designed that links a conventional antigen‑binding fragment (Fab) against cluster of differentiation 3 antigen (CD3) to a camel single domain antibody (VHH) against human epidermal growth factor receptor 2 (HER2). (spandidos-publications.com)
Distinct from previous studies (28-30), CD3-S-Fab was designed by linking a camel anti-HER2 single-domain antibody (VHH) to the C-terminal of a conventional anti-CD3 antigen-binding fragment (Fab). (spandidos-publications.com)
A novel carcinoembryonic antigen T-cell bispecific antibody (CEA TCB) for the treatment of solid tumors. (biooncology.com)
By simultaneously binding to tumor associated antigens (TAAs) and CD3Ɛ, The scFv antibody can retarget surrounding T cells to antigen-expressing tumor cells. (jcancer.org)
bsAbs are designed to have two specific antigen-binding sites, unlike conventional antibody formats. (perkinelmer.com)
After preliminary injection of a bispecific anticarcinoembryonic antigen (CEA) or antihapten antibody (Bs-mAb F6-679), AG 8.1 or AG 8.0 hapten radiolabeled with 188 Re or 125 I was injected into a nude mouse model grafted subcutaneously with a human colon carcinoma cell line (LS-174-T) expressing CEA. (snmjournals.org)
The purpose of this study was to compare the distribution and dosimetry of a bivalent hapten labeled with 188 Re or 125 I after preliminary injection of a bispecific anticarcinoembryonic antigen (CEA) or antihapten antibody into a nude mouse model grafted subcutaneously with a human colon carcinoma cell line (LS-174-T) expressing CEA. (snmjournals.org)
Bispecific antibodies are artificially engineered antibodies capable of binding with two different epitopes of an antigen. (genscript.com)
Mosunetuzumab, an -investigational - bispecific antibody, demonstrated activity in preliminary studies of patients with non-Hodgkin lymphoma (NHL), including those who are refractory to or relapsed after third-line chimeric antigen receptor (CAR) T-cell therapy. (ascopost.com)
CEA TCB (RG7802, RO6958688) is a novel T-cell bispecific antibody, engaging CD3ε upon binding to carcinoembryonic antigen (CEA) on tumor cells. (aacrjournals.org)
T-cell bispecific antibodies (TCB), engaging T cells independent of their antigen specificity, constitute a powerful strategy for cancer immunotherapy. (aacrjournals.org)
Able to simultaneously co-engage with different antigen targets, these new antibody formats are currently being broadly adopted by the biopharmaceutical industry, primarily for developing the next-generation of oncology and immune system therapies. (technologynetworks.com)
Antibody class switching does not affect antigen specificity, retains antigen affinity and allows interaction with different effector molecules. (fusionantibodies.com)
Radiocurability by targeting tumor necrosis factor-alpha using a bispecific antibody in carcinoembryonic antigen transgenic mice. (inserm.fr)
To overcome systemic side effects, we used a bispecific antibody (BsAb) directed against carcinoembryonic antigen (CEA) and TNF-alpha to target this cytokine in a CEA-expressing colon carcinoma. (inserm.fr)

We have developed a semisynthetic method for the production of bispecific antibody-like therapeutics consisting of a small molecule targeting moiety conjugated to an antibody. (pnas.org)
The bispecific antibody demonstrated direct anticancer effects in vitro, as well as in vivo antitumor activity and improved survival in a mouse xenograft model of disseminated leukemia, according to data presented at IBC Life Sciences' Antibody Engineering & Therapeutics Conference, held December 7-10 in San Diego. (genengnews.com)
Novartis has signed a collaboration and licensing deal with California biotech Xencor for access to its bispecific antibody technology and rights to develop and commercialise two of the latter's flagship experimental therapeutics. (pharmatimes.com)
In March 2018, Merus N.V. announced the initiation of development of novel bi-specific antibodies for cancer therapeutics. (prlog.org)
KN046, the world's first PD-L1 - CTLA-4 bispecific therapeutics, is positioned as the backbone of the second generation of tumor immunotherapy," said Dr. Ting Xu, Chairman of the Board and CEO of Alphamab Oncology. (biospace.com)
SEATTLE, April 16, 2018 (GLOBE NEWSWIRE) -- Aptevo Therapeutics Inc. (Nasdaq:APVO), a biotechnology company focused on developing novel oncology and hematology therapeutics, today announced the presentation of new data for APVO436, a bispecific antibody candidate targeting CD123 and CD3, at the American Association for Cancer Research (AACR) 2018 Annual Meeting. (globenewswire.com)
For a closer look at the design, development, and success of CAR T-cell therapy and bispecific antibodies, The Scientist is bringing together a panel of experts to discuss their research and share insights into the potential these therapeutics hold in the fight against various tumor types. (the-scientist.com)
The partnership is for up to 8 antibody therapeutics including ABL Bio's biologics pipelines and collaboration programs between ABL Bio and I-Mab Biopharma (I-Mab). (pharmaceutical-business-review.com)
Within the past 3 years alone, the FDA has approved 20 novel antibody therapeutics for oncological treatment, with over 300 therapeutic antibodies currently in oncology based clinical trials. (genscript.com)
We believe that the achievement of another successful milestone further validates our Azymetric™ platform as a generator of leading-edge bispecific antibody therapeutics, and we look forward to the continued advancement of other therapeutic programs under our agreements with Lilly. (bctechnology.com)
Berlin, Germany and Vancouver, Canada, October 14, 2015 / B3C newswire / -- ProBioGen AG , a leading specialist for contract development and manufacturing of complex glycoproteins, and Zymeworks Inc. , a world-leading antibody therapeutics development company, today jointly announced signing an agreement under which ProBioGen will complete cell line development of a Zymeworks bi-specific antibody product candidate, applying its GlymaxXÂ® Technology to enhance antibody-dependent cell-mediated cytotoxicity (ADCC). (firstwordpharma.com)
Given our established working relationship, we are confident that together we will help move highly efficacious bi-specific antibody therapeutics towards clinical validation. (firstwordpharma.com)
The company's novel Azymetricâ ¢ and AlbuCOREâ ¢ platforms, and its proprietary ZymeCADâ ¢ structure-guided protein engineering technology, enable the development of highly potent bi-specific antibodies and multivalent protein therapeutics targeted across a range of indications. (firstwordpharma.com)
In May 2019, Zymeworks announced that GSK has expanded its 2016 licensing and collaboration agreement for the research, development and commercialization of bispecific antibodies across multiple disease areas.The extended agreement has meant that GSK can have access to Zymeworks' heavy-light chain pairing technology, which enables the development of bispecific and multifunctional therapeutics. (wikipedia.org)

Such antibodies may engage two or more antigens at once, serving as force multipliers that can exploit opportunities beyond the reach of monospecific antibodies, whether they are deployed solo or in teams. (genengnews.com)
Bispecific antibodies, which simultaneously recognize two different antigens, hold great therapeutic potential, but their broad application has been hindered by difficulties in developing stable antibody platforms, favorable pharmacokinetic properties and feasible large-scale manufacturing protocols. (asbmb.org)
Bispecific antibodies, which simultaneously target CD3 on T cells and tumor-associated antigens to recruit cytotoxic T cells to cancer cells, are a promising new approach to the treatment of hormone-refractory prostate cancer. (pnas.org)
This format retains the traditional monoclonal antibody (mAb) structure of two Fab arms and one Fc region, except the two Fab sites bind different antigens. (wikipedia.org)
Bispecific antibodies also have a higher cytotoxic potential, and bind to antigens that are expressed relatively weakly. (wikipedia.org)
For non-IgG-like bsMabs, their smaller size allows them to reach antigens usually unavailable to conventional antibodies. (wikipedia.org)
A type of antibody that can bind to two different antigens at the same time. (cancer.gov)
Particularly, the generation of bispecific antibodies raised special interest because of their ability to bind two different antigens at the same time, and the efficiency of these formats has been demonstrated in several clinical and preclinical studies. (springer.com)
We have previously reported that bispecific antibodies directed to different target antigens on lymphoma cells and to the death receptor CD95/Fas/Apo-1 selectively kill these cells, thus providing an attractive strategy for the selective stimulation of CD95 on the surface of tumor cells. (aacrjournals.org)
Here, we further explore the general applicability of this approach under more stringent conditions using various bispecific antibodies directed to different target antigens on glioblastoma cells which express relatively low levels of CD95. (aacrjournals.org)
The data gathered in the present study suggest that this bispecific format may be applied to other tumor antigens to produce bispecific antibodies more efficiently. (spandidos-publications.com)
T-cell bispecific antibodies are designed to simultaneously bind to T cells and tumor cell antigens, leading to T-cell activation, proliferation, and tumor cell death. (biooncology.com)
Through Genentech's patented bispecific antibody design technologies, T cells can be physically recruited and linked to tumor surface antigens to elicit an antitumor immune response in patients with cancer. (biooncology.com)
Bispecific scFv antibodies represent a successful and promising immunotherapy platform that retargets cytotoxic T cells to tumor cells, with one scFv directed to tumor-associated antigens and the other to T cells. (jcancer.org)
Three distinct types of tumor antigens are considered to optimize specificity and safety in bispecific scFv based treatment: cancer-testis antigens, neo-antigens and virus-associated antigens. (jcancer.org)
Recombinant bispecific antibodies have also been intensively studied to retarget T cells against highly expressed tumor-associated antigens. (jcancer.org)
Diamantis & Banerji, 2016) Recently, it was elegantly shown that tumor selectivity can be increased by bispecific engagement of two antigens and the application of affinity attenuated binding moieties within a bispecific format. (tu-darmstadt.de)
Increased selectivity of c-MET x EGFR bispecific antibodies towards tumor models with high expression in both antigens by avidity over normal tissue models was confirmed by mixed cell flow cytometry. (tu-darmstadt.de)
Balancing selectivity and efficacy in bispecific ADCs by affinity and epitope optimization could be a viable route to expand the target space of ADCs to ubiquitously expressed antigens. (tu-darmstadt.de)
It has been demonstrated to be effective for the treatment of hematologic malignancies using directly radiolabeled antibodies targeting differentiation antigens, particularly in the treatment of malignant B cell lymphomas ( 1 , 2 ). (frontiersin.org)
The Azymetric™ platform consists of a library of proprietary amino acid substitutions that enable the transformation of monospecific antibodies into bispecific antibodies, which gives them the ability to simultaneously bind two non-overlapping epitopes, or antigens. (bctechnology.com)
We constructed chimeric proteins that contain in a single polypeptide chain a portion of human B7-2 (CD86) genetically fused to single-chain (sc) Fv antibody domains specific for the tumor-associated antigens epidermal growth factor receptor and the closely related ErbB2 receptor tyrosine kinase. (aacrjournals.org)
Bispecific antibodies interact with two different surface antigens. (bioprocessonline.com)
This is an IgG1-based heterodimeric antibody scaffold that consists of two different heavy chains engineered to exclusively assemble into a single molecule, allowing bi-specific binding to two different antigens or drug targets. (wikipedia.org)

Although CAR T-cell therapies clearly have fight in them, they may cede some anticancer glory to bispecific antibodies (bsAbs). (genengnews.com)
Bispecific antibodies (bsAbs) pave the way for novel therapeutic modes of action along with potential benefits in several clinical applications. (nih.gov)
CD19/CD3 bispecific antibodies (bsAbs) recruit endogenous T cells to form cytolytic synapses with CD19+ tumor cells. (confex.com)
Next generation antibodies such as bispecific antibodies (bsAbs) and antibody-drug conjugates (ADC) have reached market maturity demonstrating strong therapeutic benefit for patients. (tu-darmstadt.de)
Preclinically, BEAT bsAbs demonstrate the potential for more potent activity compared to existing therapeutic antibodies. (medindia.net)
The new bispecific antibody class (bsAbs) has emerged as one of the fastest-growing next-generation antibody therapies, due to its high specificity and low toxicity. (perkinelmer.com)
One of these new types of molecules are bispecific antibodies (BsAbs). (bioprocessonline.com)
During the past two decades, a great evolution of bispecific antibodies (BsAbs) for therapeutic applications has been made. (altmetric.com)

Regeneron is also advancing a broad and deep bispecific antibody platform - which may offer off-the-shelf alternatives to cell-based therapies for both solid tumors and hematologic malignancies. (prnewswire.com)
Use of anti-CD3 × anti-HER2/neu bispecific antibody for redirecting cytotoxicity of activated T cells toward HER2/neu + tumors," Journal of Hematotherapy & Stem Cell Research , vol. 10, no. 2, pp. 247-260, 2001. (hindawi.com)
Bacac M, Klein C, Umana P. CEA TCB: a novel head-to-tail 2:1 T cell bispecific antibody for treatment of CEA-positive solid tumors. (biooncology.com)
In solid tumor indications, three bispecific scFvs have entered phase I clinical trial and at least ten other antibodies are being evaluated in preclinical development against an impressive variety of solid tumors (Table 1 ). (jcancer.org)
Investigational treatments like bispecific antibodies that target a broad spectrum of HER2 expression levels on a variety of tumor tissues while simultaneously engaging tumor-infiltrating T cells have the potential to advance the treatment of these tumors, and may fulfill a substantial unmet medical need. (medindia.net)
We identified unique and tumor-specific tyrosine phosphorylation rewiring in tumors resistant to treatment with the irreversible third-generation EGFR-inhibitor, osimertinib, or the novel dual-targeting EGFR/Met antibody, JNJ-61186372. (mit.edu)
CEA TCB is a novel IgG-based T-cell bispecific (TCB) antibody for the treatment of CEA-expressing solid tumors currently in phase I clinical trials ( NCT02324257 ). (nih.gov)
Empowered by this one-stop bispecific antibody development platform, REMD is actively engineering antibody drugs against tumors, and exploring and shaping the landscape of the next-generation antibody immunotherapy. (genscript.com)
Fluorescence reflectance imaging revealed increased ratios of extravascular to vascular fluorescence signals in tumors after treatment with CEA TCB compared with control antibody, suggesting specific targeting, which was confirmed by intravital microscopy. (aacrjournals.org)

This was not the case when the bispecific reagents bound to separate viral molecules (HN or F, respectively). (ingentaconnect.com)
The parties will work together and share development costs for the these drugs, and Novartis also gets global rights to Xencor's bispecific technology to develop and commercialise four additional targets, and a non-exclusive license to use Xencor's XmAb Fc technologies in up to ten molecules. (pharmatimes.com)
Over 30 bispecific molecules are currently in different stages of clinical trials and more than 70 in preclinical phase. (mdpi.com)
This review, therefore, focuses on the progress of Fc engineering in generating bispecific molecules and on the use of small antibody fragment as scaffolds for therapeutic development. (frontiersin.org)
Clearly, the demand for antibody molecules and global sales have been rising rapidly. (frontiersin.org)
A homogenous sample of identical bispecific antibody determinants, each determinant being composed of two L-H half-molecules linked by disulfide bonds, each L-H half-molecule being specific for a different antigenic determinant and including at least the F(ab') portion of a monoclonal IgG antibody. (patents.com)
Because most targeting agents have been antibody proteins, they tend to clear much more slowly from the body (usually days) than the low molecular weight effector molecules (usually in min). (aacrjournals.org)
In vitro and in vivo characterization of these Fab-like bispecific molecules revealed favorable features for further development as a therapeutic molecule. (nih.gov)
Flow cytometry analysis showed that the bispecific F(ab')2 molecules can bind specifically to cells overexpressing p185HER2 and to normal human peripheral blood mononuclear cells bearing the CD3 surface marker. (rupress.org)
These bispecific molecules have a potential use as therapeutic agents for the treatment of cancer. (rupress.org)
Over the years, REMD has worked closely with GenScript on innovative drug discovery and development, and produced quite a collection of novel antibody molecules. (genscript.com)
In addition to supporting established formats, the system can be configured to work with completely novel multi-specific antibody-like molecules, new scaffolds, and proprietary engineering techniques (e.g. (technologynetworks.com)
The next-generation of biotherapeutics are built on bispecifics and other innovative, highly engineered large-molecules such as antibody drug conjugates. (technologynetworks.com)
We offer a new and unique service of generating antibodies which are hybrids of two (or more) unique antibody molecules. (fusionantibodies.com)

In contrast to other technologies the CrossMAb allows production and correct chain assembly using a standard process applied for the production of therapeutic antibodies. (roche.com)
More than thirty years ago, not long after scientists began developing therapeutic antibodies-breakthrough medicines that precisely bind to single targets -they began thinking about the potential advantages of medicines that could hit two targets at once: bispecific antibodies. (roche.com)
Chames P, Van Regenmortel M, Weiss E, Baty D (2009) Therapeutic antibodies: successes, limitations and hopes for the future. (springer.com)
Chan AC, Carter PJ (2010) Therapeutic antibodies for autoimmunity and inflammation. (springer.com)
Altogether, the described strategy represents a combination of in vivo immunization with an in vitro selection method, which allows for the integration of existing therapeutic antibodies into a bispecific format. (nih.gov)
In contrast to early-generation therapeutic antibodies, T-cell bispecific antibodies combine the binding specificity of two antibodies in one molecule. (biooncology.com)
However, despite this exponential growth, most therapeutic antibodies rely on a monomeric immunotherapy based mechanism. (genscript.com)
An overview of therapeutic antibodies, focusing on the opportunities and challenges of current monotherapy. (genscript.com)
This collaboration further validates our platform's ability to develop therapeutic antibodies against traditionally difficult targets, with compelling prospects for potential clinical utility. (presswire.com)

Even while monospecific antibody-based checkpoint inhibition therapies and CAR T-cell therapies continue to be improved, bispecific and multispecific antibodies are shaping up as a cancer immunotherapy options that may provide significant advantages. (genengnews.com)
At present, companies such as Amunix Operating, Invenra, Glycotope, and Xencor are working independently and in collaboration with larger pharmaceutical companies, such as Novartis, Daiichi Sankyo, and Roche, to bring bispecific and higher-order antibodies into the cancer immunotherapy market. (genengnews.com)
Taking up Cancer Immunotherapy Challenges: Bispecific Antibodies, the Path Forward? (mdpi.com)
Del Bano J, Chames P, Baty D, Kerfelec B. Taking up Cancer Immunotherapy Challenges: Bispecific Antibodies, the Path Forward? (mdpi.com)
5 T-cell bispecific antibodies targeting a variety of tumor types have become an important component of Genentech's investigational cancer immunotherapy research. (biooncology.com)

Recombination of a mixture of univalent antibody fragments of different specificity. (springer.com)
Kohler G, Milstein C (1975) Continuous cultures of fused cells secreting antibody of predefined specificity. (springer.com)
T-cell bispecific-antibody-mediated tumor-cell killing does not require pre-existing immunity and may occur independently of T-cell specificity, activation, and differentiation status. (biooncology.com)
We have developed a bispecific F(ab')2 antibody molecule consisting of a humanized arm with a specificity to p185HER2 linked to another arm derived from a murine anti-CD3 monoclonal antibody that we have cloned from UCHT1 hybridoma. (rupress.org)

Single-domain antibody-based and linker-free bispecific antibodies targeting FcγRIII induce potent antitumor activity without recruiting regulatory. (nih.gov)
An in depth , integrated SMAB (single-domain antibody fused to monoclonal antibody) case study from rational design to preclinical development. (genscript.com)
According to the Agreement, GenScript will allow REMD to use its SMAB (Single-Domain Antibody fused to Monoclonal Ab) Platform, a bispecific antibody platform, to develop novel tumor immunotherapy drugs. (genscript.com)
Among various bispecific antibody platforms, GenScript's SMAB Platform is highly distinctive in that it creates such hybrids by fusing sdAb (single-domain antibody) to mAb, the most natural bispecific antibodies in the world that require no sequence mutation and minimum engineering. (genscript.com)

Our plan is to generate additional preclinical data with selected bispecific drug candidates in 2016. (genengnews.com)
At ASCO, researchers presented preclinical and translational data on GBR 1302 (Glenmark) , a HER-2 and CD3 bispecific antibody under investigation for treatment of a variety of HER-2-positive cancers. (healio.com)
The Company is developing these bi-specific antibodies in association with the Vall d'Hebron Institute of Oncology by combining Merus' proprietary Biclonics technology platform with VHIO's expertise in clinical, translational and preclinical research. (prlog.org)
In preclinical studies, KN046 has demonstrated excellent anti-tumor efficacy, and its toxicity is significantly reduced compared with the existing CTLA-4 antibody Yervoy (ipilimumab). (biospace.com)
New preclinical data presented at this year's AACR Annual Meeting compare Aptevo's second generation bispecific, APVO436, with an Aptevo-generated version of Macrogenics' CD123 x CD3 dual-affinity re-targeting (DART) molecule, MGD006, evaluating T-cell activation, proliferation, cytotoxicity and cytokine secretion. (globenewswire.com)
23andMe has out-licensed its bispecific monoclonal antibody to Almirall in order to leverage Almirall's expertise in medical dermatology and accelerate the development of this preclinical program. (prnewswire.com)
At SITC, we are presenting new data from multiple preclinical programs, including CD28 bispecific antibodies, our second class of T cell engagers, that we have designed to conditionally co-stimulate T cells when they are bound to tumor cells. (biospace.com)
As demonstrated in preclinical models, upon dispersion of T-cell bispecific antibodies, the cytotoxic T cells (seen in red) immediately recognize and begin to destroy the target cancer cells (seen in blue). (biooncology.com)
Additionally, the dual-targeting of Azymetric™ antibodies has demonstrated synergistic efficacy in preclinical studies through simultaneous binding relative to the application of an equivalent dose of the corresponding monospecific antibodies. (bctechnology.com)
Several preclinical and clinical studies have shown the benefit of using the affinity enhancement system (AES), which associates a bispecific antibody with a bivalent hapten ( Fig. 1 ). (snmjournals.org)
In preclinical models, XmAb 2+1 bispecific antibodies bound preferentially to tumor cells compared to normal cells and effectively recruited T cells to kill tumor cells selectively. (ariva.de)
Further data presented from preclinical studies of XmAb30819 in non-human primates demonstrated it was well-tolerated with expected pharmacodynamics and an antibody-like half-life. (ariva.de)
MedImmune, the global biologics research and development arm of AstraZeneca, and Abpro, an integrated life sciences company at the forefront of synthetic biology, today announced they have entered into a collaborative agreement to advance the development of a preclinical, novel bispecific antibody targeting angiopoietin-2 and vascular endothelial growth factor (Ang2-VEGF). (presswire.com)
Based on this underlying treatment concept and on promising data taken from preclinical results and a small pilot study, an open-label, non-randomized, uncontrolled, dose-escalating phase I/II-study is conducted to evaluate safety and preliminary efficacy of the investigational antibody FBTA05 in combination with DLI for patients suffering from rituximab- and/or alemtuzumab-refractory, CD20-positive low- or high-grade lymphoma after allogeneic SCT. (biomedcentral.com)

Bispecific antibodies provide access to new modes of action that have not been possible with single antibodies," says Stefan Weigand, Roche's Global Head of Large Molecule Research. (roche.com)
The essential problem with engineering bispecific antibodies is how to guarantee correct assembly of the parts to deliver only the desired molecule, while omitting unwanted side products. (roche.com)
Now, Roche has taken bispecific technology a step further and developed the next generation in bispecific antibody engineering: CrossMAb, a technology that produces one bispecific molecule-not ten, not four, but just what the scientists need. (roche.com)
2. The assembly of claim 1 wherein the other said antigenic determinant for which said second bispecific antibody determinant is specific is an antigenic site on a second protein molecule. (patents.com)
This bispecific molecule not only recruits T cells via its one binding arm, but simultaneously activates FcγR + accessory cells via its Fc region. (jimmunol.org)
As an alternative approach we exploited recombinant antibody fragments to localize a costimulatory B7 molecule to the surface of tumor cells. (aacrjournals.org)
Genedata Biologics is meeting the challenges of developing these complex multi-specific antibodies by providing new tools to enable more efficient molecule design, production, and characterization. (technologynetworks.com)
Therefore, today's biopharmas are faced with generating and testing vastly increased numbers of diverse alternative antibody molecule formats," said Dr. Othmar Pfannes, CEO of Genedata. (technologynetworks.com)

WuXiBody™ Platform enables almost any mAb sequence pairs to be assembled into bispecific constructs. (pharmiweb.com)
Today, dozens of next-generation bispecific antibody constructs are in clinical trials, and they are poised to have a huge impact in the treatment of lymphoma and other hematologic malignancies, experts agreed. (ascopost.com)
To address this problem, bi- and trispecific antibody-like constructs have been developed. (asm.org)
Several bispecific antibodies have been developed to increase the breadth of these antibodies, but typically only one arm of these bispecific constructs binds the HIV-1 envelope glycoprotein trimer (Env). (asm.org)
Here, we develop and characterize bispecific constructs based on well-characterized V2-glycan and V3-glycan bNAbs and show that at least one member of this class is more potent than its parental antibodies, indicating that they can simultaneously bind both of these epitopes of a single Env trimer. (asm.org)
A particular challenge of bispecific antibody constructs that recognize the invariant CD3 signaling complex is a controlled polyclonal activation of T cells that, ideally, is exquisitely dependent on the presence of target cells. (ovid.com)
Here we analyzed 2 distinct bispecific single-chain antibody constructs of the BiTE class, called MT110 and MT103 (or MEDI-538), for conditional T-cell activation. (ovid.com)

Bispecific Abs (bsAb) are promising immunological tools for the elimination of tumor cells in minimal residual disease situations. (jimmunol.org)
Bispecific Abs (bsAb) 3 are regarded as powerful tools for the immunological treatment of malignant cells in a minimal residual disease situation, because single disseminated tumor cells are especially appropriate targets for an immunological attack. (jimmunol.org)
Bispecific antibody is known as bsAb for short. (green-blog.org)

ACE910 is an investigational humanised bispecific monoclonal antibody engineered by Roche group Chugai to mimic the function of blood coagulation factor VIII, and thus provide a new approach to treating the condition, regardless of whether patients have developed inhibitors. (pharmatimes.com)
REGN1979 is a wholly-owned, investigational, full-length bispecific monoclonal antibody designed to trigger tumor killing by binding CD3 on immune system T-cells and CD20 on B-cell malignancies. (prnewswire.com)
Treatment with CEA-TCB (RO6958688), an investigational CEA/CD3 bispecific antibody, showed a favorable safety profile and promising efficacy in patients with heavily-pretreated microsatellite stable (MSS) metastatic colorectal cancer (mCRC), with enhanced efficacy when combined with the PD-L1 inhibitor atezolizumab (Tecentriq), according to findings presented at the 2017 ESMO World Congress on Gastrointestinal Cancer. (onclive.com)
Mosunetuzumab is an investigational, humanized, T cell-dependent bispecific antibody designed to engage T cells and redirect their cytotoxic activity against malignant B cells. (biooncology.com)
1 Mosunetuzumab is an investigational, full-length, bispecific antibody designed to simultaneously bind to CD20 on the surface of malignant B cells and to CD3ε on cytotoxic T cells, resulting in crosslinking of the TCR and subsequent formation of an immunologic synapse and T-cell activation. (biooncology.com)

CHICAGO - Venkateshwar "Venkat" Reddy , PhD , vice president and global head of translational science for Glenmark Pharmaceuticals, spoke with HemOnc Today at ASCO Annual Meeting about the company's bispecific T-cell engager platform. (healio.com)
Impressively, antibody fragments such as bispecific T-cell engager, bispecific killer cell engager, trispecific killer cell engager, tandem diabody, and dual-affinity-retargeting are showing exciting results in terms of recruiting and activating self-immune effector cells to target and lyse tumor cells. (frontiersin.org)
For example, blinatumomab, a bispecific T cell engager antibody (BiTE), has been approved for the treatment of B-cell leukemia ( 23 ). (spandidos-publications.com)
Years ago, the bispecific T-cell engager blinatumomab validated the concept of bispecific antibodies in hematology. (ascopost.com)
Blinatumomab, a first-generation CD3-CD19 bispecific T-cell engager, binds to CD19 on the surface of B cells and CD3 expressed on the surface of T cells. (ascopost.com)

Since approval of the first therapeutic monoclonal antibody (mAb) muromonab-CD3 by the United States Food and Drug Administration for treatment of organ transplant-associated acute rejections in 1992, a total of 62 mAbs have been approved by the USFDA for clinical use as of May 2016 ( 1 , 2 ). (frontiersin.org)

This bispecific antibody format is engineered by combining scFv domains of two different antibodies on one polypeptide linker chain. (jcancer.org)
Specifically, bispecific antibodies with a single-chain (scFv) form of the CAP256.VRC26.25 V2-glycan (apex) antibody on one antibody arm and a full V3-glycan Fab on the other arm neutralizes more HIV-1 isolates than the bNAbs from which they were derived. (asm.org)
Recombinant Anti-CD64 x Anti-EGFR Bispecific Antibody (Fab-scFv-Fc) requires expression of three polypeptide chains, encoding two heavy chains (Fc-containing chains) and one light chain, respectively. (creative-biolabs.com)
The Fab of anti-CD64 antibody variable domain is fused to the Fc-knob domain with a hinge region and the same as the scFv of anti-EGFR to the Fc-hole domain, or vice versa. (creative-biolabs.com)
We offer a range of Antibody Reformatting services and are experienced in producing antibodies in a wide range of formats including scFv, Fab, bispecific and many more. (fusionantibodies.com)
Based on the Fab and scFv formats as building blocks, we can engineer any antibody to help fit your target product profile. (fusionantibodies.com)

Bispecific antibodies capable of simultaneously binding two targets have been studied for many years with a view to their implementation in clinical practice. (springer.com)
These days there are literally hundreds of different ways of making bispecific antibodies," says Stefan Weigand, "But few have made it into later-stage clinical trials, partly because while many of them work on paper, they are very far away from the original antibodies. (roche.com)
Bispecific antibodies currently are in clinical trials. (roche.com)
of bispecific antibodies in clinical trials are bringing immune cells closer to cancer targets. (roche.com)
The clinical application of such a combined therapy with ATV-NDV vaccine cells and bi-specific antibodies allows to modify the strength of signal 1 and 2 in a quantitative and predictable way according to the immune status of the T cells and the requirements of the patients' immune system. (ingentaconnect.com)
Furthermore, Zymeworks Inc. announced the initiation of clinical development of its first product, known as ZW49, by utilizing the ZymeLink ADC platform in combination with Zymeworks' Azymetric bispecific platform. (prlog.org)
This review focuses on the clinical potential of bispecific antibodies as immune effector cell engagers in the onco-immunotherapy field. (mdpi.com)
Furthermore, perspectives of bispecific antibodies in future clinical developments are addressed. (mdpi.com)
The antibody has also obtained the IND approval from the National Medical Products Administration (NMPA) in China and will enter clinical trials in the country as well. (biospace.com)
We expect the overall clinical profile of KN046 to be superior to monotherapy with the PD-(L)1 or CTLA-4 antibody, as well as to the combination of the two antibody drugs. (biospace.com)
Almirall will further progress the antibody with the goal of taking it through clinical trials in humans and onto the market. (prnewswire.com)
Our bispecific antibody pipeline includes REGN1979 and a MUC16xCD3 antibody for ovarian cancer in clinical development, and a BCMAxCD3 antibody for multiple myeloma expected to enter human studies before the end of this year. (prnewswire.com)
In 2019, we expect to start clinical trials of a new class of bispecific antibodies that engage cellular immunity in novel ways. (prnewswire.com)
The Company currently has a pipeline of over 20 innovative investigative drugs for the treatment of major diseases like cancer, autoimmune diseases, inflammation and metabolic diseases, 9 of which have entered clinical stage, including two novel first-in-class bi-specific antibody drugs (PD-1/CTLA-4 and PD-1/VEGF). (yahoo.com)
WuXi Biologics and ABL Bio have entered into an exclusive development and clinical manufacturing partnership for multiple bispecific antibodies. (pharmaceutical-business-review.com)
The major benefits of bispecific antibodies and the current formats used in clinical trails. (genscript.com)
Vancouver, BC, January 16, 2017--(T-Net)-- Zymeworks Inc. , a clinical-stage biopharmaceutical company dedicated to the discovery, development and commercialization of next-generation multifunctional biotherapeutics, initially focused on the treatment of cancer, today announced the successful achievement of a research milestone in a second immune-modulating bispecific antibody in its collaboration with Eli Lilly and Company ("Lilly") using Zymeworks' proprietary Azymetric™ platform. (bctechnology.com)
Zymeworks' lead product candidate, ZW25, is a novel bispecific antibody currently being evaluated in an adaptive Phase 1 clinical trial. (bctechnology.com)
Several potential therapeutic areas will be explored where inhibition of the Ang2 and VEGF pathways with this unique bispecific antibody may provide clinical benefit. (presswire.com)
Abpro will bring strong scientific, technical and clinical expertise to the new company moving forward, and its core technology platform, DiversImmune, will be used to further refine the antibody. (presswire.com)
Boehringer Ingelheim today announced the advancement of the bi-specific and tetravalent therapeutic antibody, BI 905711, to its first-in-human clinical trial for patients with advanced gastrointestinal (GI) cancers. (sttinfo.fi)

According to Immune, the platform prototype bispecific antibody has been shown to retain effector functions and mediate redirect killing of target cells by cytokine induced killer T cells. (genengnews.com)
Lum LG, Davol PA (2005) Retargeting T cells and immune effector cells with bispecific antibodies. (springer.com)
We have previously developed a guide-effector bispecific system to achieve cell-type-specific signaling modulation ( 8 ). (aacrjournals.org)
We hypothesize that internalization can be manipulated by our guide-effector-based bispecific. (aacrjournals.org)
The BiTE® antibody construct mediated T cell-directed killing of CEA positive tumor cells within 6 hours, at low effector-to-target ratios which were independent of high concentrations of soluble CEA. (nih.gov)
The anti-CD20 x anti-CD3 trifunctional bispecific antibody (trAb) FBTA05 may improve the targeting of tumor cells by redirecting immune allogeneic effector cells while reducing the risk of undesirable reactivity against normal host cells. (biomedcentral.com)

2004. Retargeting of adenoviral infection to melanoma: Combining genetic ablation of native tropism with a recombinant bispecific single-chain diabody (scDb) adapter that binds to fiber knob and HMWMAA. (springer.com)
Catumaxomab, one of the first trifunctional antibodies approved for therapeutic use, binds both CD3 on cytotoxic T cells and EpCAM on human adenocarcinomas. (wikipedia.org)
RG7716 is the first bispecific, monoclonal antibody specifically designed for the eye that simultaneously binds to and inactivates vascular endothelial growth factor A (VEGF-A) and angiopoietin-2 (Ang-2). (chemdiv.com)
Let's take a look at the Blincyto of Amgen approved by FDA and EMA in December 2014, which is a double-specific antibody to CD3 on one end of CD19 that binds to the surface of white blood cell B cells, and on the other end of the surface of T cells. (green-blog.org)
XmAb13676 is a humanized bispecific antibody that binds both CD20 and CD3 in order to recruit cytotoxic T cells to kill CD20 expressing malignant cells. (confex.com)

2007. Antibody targeting of stem cells to infarcted myocardium. (springer.com)
Dual-targeting antibodies may promote less toxicity by more selectively targeting the tumor reactive T cells. (genengnews.com)
The bispecific antibody 9202.1/5411 lowers histamine release from RBL cells transfected with human FcεRI and human FcγRIIb and activated through human FcεRI. (asbmb.org)
Antibodies developed in the laboratory to recognize more than one protein on the surface of different cells. (medindia.net)
A bispecific antibody containing a 4G7 hybridoma secreting IgG1 antibody specific for B-lymphocytes and a monoclonal antibody targeting Fc gamma RI-expressing cells. (cancer.gov)
IgG-like antibodies can be immunogenic, which means the Fc region could cause detrimental downstream immune responses caused by cells that are activated by Fc receptors. (wikipedia.org)
Lu D, Zhang H, Ludwig D et al (2004) Simultaneous blockade of both the epidermal growth factor receptor and the insulin-like growth factor receptor signaling pathways in cancer cells with a fully human recombinant bispecific antibody. (springer.com)
Behar G, Siberil S, Groulet A et al (2008) Isolation and characterization of anti--FcgammaRIII (CD16) llama single-domain antibodies that activate natural killer cells. (springer.com)
CAR T-cell therapy and bispecific antibodies are two approaches that have addressed the targeting of more than one epitope, the re-directing of T lymphocytes to kill tumor cells, and the improvement of efficacy in solid tumor types. (the-scientist.com)
CEA-TCB has a 2-to-1 binding ratio, with 1 arm of the antibody binding directly to CD3 on T cells while the remaining 2 arms simultaneously bind to CEA on the tumor. (onclive.com)
Targeted CD28 bispecific antibodies may provide conditional co-stimulation of T cells, for example, to T cells recognizing neoantigens or in concert with CD3 T-cell engaging bispecific antibodies. (biospace.com)
Xencor engineered two XmAb bispecific antibodies, B7-H3 x CD28 and PD-L1 x CD28, to provide conditional co-stimulation of T cells, activating them when bound to tumor cells. (biospace.com)
H. E. Lum, M. Miller, D. Van Epps, and L. G. Lum, Targeting Prostate Cancer Cells with T Cells Armed with Two Novel Bispecific Antibodies (OKT3 x 9187 and OKT3 x 9189) , 29th edition, 2001. (hindawi.com)
As opposed to anti-CD3 bispecific antitumor antibodies, they do not engage regulatory T cells as these latter cells do not express FcγRIII. (nih.gov)
In contrast, a bispecific F(ab′) 2 fragment binding to the epidermal growth factor receptor on the glioblastoma cells failed to induce apoptosis. (aacrjournals.org)
The presence of sensitizing reagents such as cycloheximide and various cytostatic drugs further enhanced antibody-mediated killing of the tumor cells. (aacrjournals.org)
Alternatively, anti-CD95 antibodies may be cross-linked by Fc receptors on neighboring cells or by secondary antibodies to achieve agonistic activity ( 3 ). (aacrjournals.org)
Because many tumor cells express CD95, the use of agonistic anti-CD95 antibodies for tumor therapy has been vigorously pursued after initial characterization of prototypic CD95 antibodies ( 4 , 5 ). (aacrjournals.org)
Bispecific antibodies have been actively studied for cancer therapy due to their potent cytotoxicity against tumor cells. (spandidos-publications.com)
As T cells serve an important function in the killing of tumor cells (16-20), bispecific antibody that recruits T cells to kill tumor cells is of interest and has been investigated for cancer therapy (21-23). (spandidos-publications.com)
The present study reports on a T-cell engaging bispecific antibody, cluster of differentiation (CD)3-S-Fab, which targets HER2 tumor cells. (spandidos-publications.com)
Such bispecific antibodies have been developped to enhance immunotherapy, by bridging tumor cells and T cells, or radioimmunotherapy by combining bispecific antibodies and radiolabeled bivalent haptens that bind cooperatively to target cells. (inserm.fr)
Watch a time-lapse microscope video of the T-cell bispecific antibody in activating cytotoxic T lymphocytes designed to kill tumor cells. (biooncology.com)
Targeting T cells to tumor cells using bispecific antibodies. (biooncology.com)
Development of humanized bispecific antibodies reactive with cytotoxic lymphocytes and tumor cells overexpressing the HER2 protooncogene. (rupress.org)
Recent studies have shown that human T cells can be targeted with bispecific antibody to react against human tumor cells in vitro. (rupress.org)
In additional experiments, the presence of bispecific F(ab')2 caused up to fourfold enhancement in the cytotoxic activities of human T cells against tumor cells overexpressing p185HER2 as determined by a 51Cr release assay. (rupress.org)
As a result, bispecific ADCs retained increased selectivity and mediated high tumor efficacy in EGFR and c-MET overexpressing cells whereas toxicity in primary keratinocytes as normal tissue equivalent was conjointly reduced. (tu-darmstadt.de)
In vitro studies, measuring protein synthesis, showed that all three derivatives were extremely efficient at delivering saporin to L2C cells, to the extent that addition of the rabbit Fab' gamma-containing bispecific Ab to cell culture at 1 microgram/ml increased the toxicity of saporin (50% inhibiting concentration) by close to 90,000-fold. (jimmunol.org)
These findings have shown that bispecific F(ab' gamma)2 Ab, as well as being straightforward to prepare, can also function as an extremely efficient vector for delivering cytotoxic agents such as ribosome-inactivating protein to unwanted cells in vivo. (jimmunol.org)
Mosunetuzumab is basically an antibody that uses the patient's own T cells to do what a CAR T cell would do. (ascopost.com)
We need more follow-up with these approaches to see tolerability and durability, but if bispecific antibodies can do what CAR T cells can do, that would be a very big advance and would represent a paradigm shift. (ascopost.com)
Here the CEA and CD3 bispecific single-chain antibody MEDI-565 (also known as MT111 and AMG 211) was evaluated for its ability to activate T cells both in vitro and in vivo and to kill human tumor cell lines harboring various somatic mutations commonly found in colorectal cancers. (nih.gov)
The XmAb 2+1 bispecific antibody format has two domains that bind the tumor target, and this bivalent binding can preferentially bind tumor cells with high target expression, potentially sparing low-expression normal tissues. (ariva.de)
However, treatment with such antibodies and cytotoxic antibody fusion proteins does generally not result in the induction of specific antitumor immunity and cannot prevent possible tumor recurrence if disseminated tumor cells escape cytotoxic therapy. (aacrjournals.org)
The first-in-class BI 905711 antibody is designed to recognize both the pro-apoptotic tumor necrosis factor (TNF)-related apoptosis-inducing ligand receptor 2 (TRAILR2) and the tumor cell anchor cadherin 17 (CDH17) to activate the self-destruction (apoptosis) pathway in co-expressing tumor cells found mostly in the GI tract. (sttinfo.fi)
The GlymaxXÂ® technology, developed by ProBioGen, prevents the addition of the sugar "fucose" to the N-linked antibody carbohydrate part by antibody producing cells. (firstwordpharma.com)
The potentiality of antibody-producing cells. (mysciencework.com)
I Bispecific cell occurrence in double stimulated cultures of syngeneic or allogeneic spleen cells of the mouse. (mysciencework.com)
Bispecific haemolytic plaque-forming cells (PFC) were detected in almost all cultures of individual Swiss mice cells with a frequency of 2-5--14 PFC/10(6) cells recovered. (mysciencework.com)
In DBA/2 cell cultures bispecific PFC were found in half the cultures (2-5--8-3/10(6) cells) and in C57Bl cell cultures in 30 per cent of the cultures (7--21/10(6) cells). (mysciencework.com)
When cells from individual Swiss mice immunized in vivo with TNP--SRBC were as an allogeneic culture from the 2nd day after immunization in the presence of TNP--SRBC, the frequency of bispecific PFC increased from 8 to 30/10(6) cells. (mysciencework.com)
Mixed allogeneic cultures of normal C57Bl and DBA/2 cells yielded high specific responses with regular occurrence of bispecific PFC only when the numbers of cells cultured together was small. (mysciencework.com)
However, when allogeneic cells were mixed 24 hours after starting the cultures, all responses were stimulated and bispecific PFC were found in considerable numbers (4--33/10(6) cells). (mysciencework.com)
In no instance did bispecific PFC exceed background levels (0-1--0-6/10(6) cells) in these control experiments. (mysciencework.com)

The DutaMab™ technology platform further enables the development of bi-specific antibodies on a single arm of the antibody that are characterized by a high affinity and simultaneous binding against both targets, excellent stability and good manufacturing properties. (roche.com)
In the case of Ebola vaccines, this method allows the antibody to target intracellular targets not usually accessible by traditional monoclonal antibody treatments. (wikipedia.org)
The bi-specific antibodies intend to provide the next generation of targeted biologics by engaging two different targets simultaneously. (prlog.org)
For this, heavy chain repertoires from immunized transgenic rats were combined with either a randomly chosen common light chain or a light chain of an existing therapeutic antibody and screened for binders against tumor-related targets CEACAM5 and CEACAM6 by yeast surface display. (nih.gov)
Under the terms of the agreement, Zymeworks has granted Lilly a worldwide, royalty-bearing license to research, develop and commercialize certain bispecific therapeutic candidates toward Lilly's therapeutic targets. (bctechnology.com)

Despite an extension of life expectancy associated with this treatment, resistance to EGFR tyrosine kinase inhibitors and anti-EGFR antibodies is almost inevitable. (mit.edu)
CBT plans to test two of its own candidates - a c-Met inhibitor and an anti-PD1 antibody - together with the Bossan EGFR inhibitor, which is currently in a Phase I China trial. (seekingalpha.com)

A recombinant bispecific single-chain antibody was as effective as a chemically hybridized F(ab′) 2 fragment with identical specificities. (aacrjournals.org)

FDA in December 2014 highlighted bispecific single chain variable fragment antibody as powerful and promising platform for immunotherapy both in hematologic and solid tumor settings [ 3 , 4 ]. (jcancer.org)

Supported by rapid advances in antibody engineering and the development of several technological platforms such as Triomab or bispecific T cell engagers (BiTEs), the "bispecifics" market has increased significantly over the past decade and may occupy a pivotal space in the future. (mdpi.com)
With multiple in-house proprietary platforms including bispecifics, protein engineering and antibody screening, Alphamab Oncology has built a robust pipeline in oncology/immunology. (biospace.com)
Under the terms of the agreement, Almirall has access to WuXi Biologics' proprietary antibody platforms including WuXiBody™ to discover multiple novel bispecific antibodies. (pharmiweb.com)
It can effectively break through the CMC barriers for many bispecific antibodies development with high expression yield, high stability, good solubility, and easy purification to homogeneity, expedite the process by 6-18 months and significantly reduce manufacturing cost, a limitation still facing by many other current bispecific platforms. (pharmiweb.com)
BeiGene will acquire Asian rights to two bispecific antibodies from Zymeworks and will have rights to three to-be-discovered bispecific candidates developed by Zymeworks platforms. (seekingalpha.com)
Being natural mitigates many problems with traditional bispecific antibody platforms, including immunogenicity risks, developability issues and mass production difficulties. (genscript.com)
The GlymaxXÂ® technology is universally applicable, simple and potent, and can be rapidly applied to any existing antibody producer cell line, any new cell line development or to entire expression platforms. (firstwordpharma.com)

2014. A novel platform for engineering blood-brain barrier-crossing bispecific biologics. (springer.com)
The agreement showcases the expansive biologics pipeline of ABL Bio and the world leading technical expertise and capabilities of WuXi Biologics in developing bispecific programs. (pharmaceutical-business-review.com)
The partnership with WuXi Biologics is an important strategy for growing our internal and external programs of next-generation of biologics such as bispecific antibody. (pharmaceutical-business-review.com)
I believe that the partnership with WuXi Biologics will bring a synergy effect for developing our bispecific antibody pipelines and help us step up to be a global top-tier biotechnology company for immuno-oncology and neurodegenerative disease treatment. (pharmaceutical-business-review.com)
WuXi Biologics has been well recognized as a global leader in the development and manufacturing of difficult biologics such as bispecific antibodies. (pharmaceutical-business-review.com)
WuXiBody™ is a leading proprietary bispecific antibody platform developed by WuXi Biologics. (pharmiweb.com)
To address these limitations, bi- and multispecific antibody-like biologics of various architectures have been developed ( 20 - 23 ). (asm.org)
Genedata, a leading provider of advanced software solutions for drug discovery and life science research, has announced the release of Genedata Biologics™ 4.0, the latest version of its enterprise workflow support and data management solution for biologics R&D. This major new release provides novel tools for systematically designing, cloning, expressing, purifying, and testing bi- and multi-specific antibodies. (technologynetworks.com)
Genedata Biologics 4.0 enables standardized processing and assessment of next-generation antibody formats (e.g. (technologynetworks.com)

Here, we describe a new class of bispecific antibodies targeting the V2-glycan (apex) and V3-glycan regions of the HIV-1 envelope glycoprotein (Env). (asm.org)
Xencor has expanded its T-cell redirecting CD3 class of bispecific antibodies to create an XmAb 2+1 bispecific antibody format, utilizing an engineered heterodimeric Fc domain, two identical tumor targeting domains and one CD3 targeting domain. (ariva.de)

The present review describes the main formats of bispecific antibodies, methods for their generation, and possibilities for practical application. (springer.com)
Over 50 different formats of bispecific antibodies are now available for therapeutic and diagnostic applications [ 2 ]. (jcancer.org)

The researchers adapted this technology into a two-part strategy that consists first of small-scale generation of bispecific antibodies lacking a common light chain and hinge disulfides to facilitate proof-of-concept studies, followed by the identification of a common light chain-bispecific antibody for large-scale production with high purity and yield. (asbmb.org)
Especially, recent development of IgG-fusions with disulfide-stabilized Fv fragments and of CrossMab-technologies facilitates the generation of bispecific antibodies with IgG-like architectures. (springer.com)

In an important first step to simplifying the production of bispecific antibodies, in 1997 Genentech scientist Paul Carter was the main inventor of the "knobs-and-holes" technology that solved the problem of the two heavy chains being paired correctly. (roche.com)
However, effective production of bispecific antibodies remains challenging for the majority of bispecific antibody formats. (spandidos-publications.com)

We constructed a bispecific antibody-drug conjugate (ADC) based on the above bispecific design and found that the bispecific ADC is more potent than monospecific ADCs in tumor cell killing both in vitro and in vivo . (aacrjournals.org)
Azymetric™ bispecifics can also be engineered to enhance internalization of the antibody into the tumor cell and consequently increase the delivery of cytotoxic payloads. (bctechnology.com)
Bispecific antibodies have been extensively studied in vitro and in vivo for their use in redirected tumor cell lysis. (ovid.com)

Bifunctional antibody fragment-based fusion proteins for the targeted elimination of pathogenic T-cell subsets. (springer.com)
There are also fusion proteins mimicking the variable domains of two antibodies. (wikipedia.org)
These data show that bispecific antibody-like proteins can achieve greater neutralization potency than the bNAbs from which they were derived. (asm.org)

Antibody fragments can be advantageous for particular downstream applications due to improved thermostability, solubility and diffusion compared to a full-length mAbs. (fusionantibodies.com)

Ideally, a potent cytotoxic attached to a cell-type-specific antibody can route the cytotoxic to the target cell and preferentially accumulate in the target tissue. (aacrjournals.org)
These engineered antibodies typically have greater breadth than the native bNAbs from which they were derived, but they are not more potent because they do not, in most cases, simultaneously engage more than a single epitope of the HIV-1 envelope glycoprotein (Env). (asm.org)
Moreover, these bispecific antibodies are markedly more potent than their parental bNAbs, likely because they simultaneously engage both the apex and V3-glycan epitopes of Env. (asm.org)
The past decade has seen the emergence of a number of potent broadly neutralizing antibodies (bNAbs) that recognize nearly every available surface of the HIV-1 envelope glycoprotein (Env) ( 1 - 7 ). (asm.org)
Although they are more potent and much broader than previously described HIV-1 neutralizing antibodies, the high HIV-1 mutation rate and preexisting diversity of Env in infected persons precludes their use as monotherapy ( 10 - 19 ). (asm.org)
Scientists at MedImmune leveraged the company's significant experience with bispecific antibody development, engineering a novel bispecific antibody that demonstrated potent activity in animal models, which may be useful in targeting disease indications with high unmet needs. (presswire.com)

It is a bispecific antibody, based on Zymeworks' Azymetric™ platform, that can simultaneously bind two non-overlapping epitopes of HER2, known as biparatopic binding. (bctechnology.com)
Among these are antibodies that bind the CD4-binding site, the V1/V2 glycan region at the Env apex, the V3-glycan epitope, the interface of the gp120 and gp41 Env subunits, the silent face (SF), and in the membrane-proximal region of gp41 ( 8 , 9 ). (asm.org)

For the first time in diabetic macular edema, a clinically meaningful and statistically significant improvement in visual acuity compared to anti-VEGF alone has been demonstrated by simultaneously neutralising both angiopoietin-2 and VEGF-A with a bispecific antibody," said Sandra Horning, MD, Chief Medical Officer and Head of Global Product Development. (chemdiv.com)

Data from Zymeworks' ongoing multi-center Phase 1 study showed single agent ZW25, a bispecific antibody, induced anti-tumor activity and was well tolerated in heavily pretreated patients with a variety of HER2-expressing cancers. (businesswire.com)
ProBioGen's CSO, Dr. Volker Sandig, commented: "We have been working productively with Zymeworks for some time already and look forward to contributing to the success of Zymeworks' Azymetricâ ¢ bi-specific antibody platform. (firstwordpharma.com)
About Zymeworks Zymeworks is a privately held biotherapeutics company that is developing best-in-class Azymetricâ ¢ bi-specific antibodies and antibody drug conjugates for the treatment of oncology, autoimmunity and inflammatory diseases. (firstwordpharma.com)

Unique biological and pharmacological properties, as well as the diversity of their formats, make it possible to consider bispecific antibodies as promising agents for use in various procedures: from visualization of intracellular processes to targeted anticancer therapy. (springer.com)
Genentech is exploring the potential of combining T-cell bispecific antibodies with other anticancer therapies, including PD-L1 inhibitors and antibody drug conjugates in the pursuit of enhancing T-cell-mediated cancer immunity. (biooncology.com)

This is the key issue that delayed the entire field of bispecific antibodies for years," says Janice Reichert, Executive Director of the Antibody Society. (roche.com)
Removab, the first therapeutic antibody drug in the field of bispecific antibodies who was approved by the European Union on April 20, 2009, is certain to be First-in-Class consisting by antibody-peptide . (green-blog.org)

Genetic engineering has resulted in more than 50 recombinant bispecific antibody formats over the past two decades. (jcancer.org)

Here, newly engineered bispecific and multispecific antibodies will be put to the test. (genengnews.com)
In the past decade, many novel concepts to generate bispecific and multispecific antibodies have evolved successfully into a range of formats from full bispecific immunoglobulin gammas to antibody fragments. (frontiersin.org)
The use of CrossMAb technology for the generation of bi- and multispecific antibodies. (biooncology.com)

As evidenced by the recent approvals of Removab (EU, Trion Pharma) in 2009 and of Blincyto (US, Amgen) in 2014, the high potential of bispecific antibodies in the field of immuno-oncology is eliciting a renewed interest from pharmaceutical companies. (mdpi.com)
Alphamab has developed in house the next-generation immune-oncology program KN046, a bispecific antibody targeting both PD-L1 and CTLA-4. (biospace.com)

This new compact, linker-free bispecific antibody format offers a promising approach for optimizing antibody-based therapies. (nih.gov)
CAR T-cell therapies are here to stay, but the question is whether bispecific antibodies will encroach on them," he commented. (ascopost.com)

Attempts to improve the cytotoxicity of antibodies, particularly in the cancer field, have led to the design of bispecific antibodies: this can occur through various strategies, such as quadroma, thioether-linked Fab' gamma fragments or genetic engineering. (inserm.fr)

2015. Phase 1 study of a bispecific ligand-directed toxin targeting CD22 and CD19 (DT2219) for refractory B-cell malignancies. (springer.com)

Antibody-drug conjugate (ADC) is a class of targeted therapeutic that has shown effectiveness in the clinic ( 1, 2 ). (aacrjournals.org)
In order to improve the therapeutic effect of antibodies, a number of approaches have been studied, including antibody conjugate TDM1 ( 15 ). (spandidos-publications.com)
Tumor pretargeting is obtained by using a bispecific monoclonal antibody [BsmAb, anti-CEA × anti-DTPA-indium complex (DTPA-In)] and pegylated radioactive liposomes containing a lipid-hapten conjugate (DSPE-PEG-DTPA-In). (frontiersin.org)
A number of studies of mosunetuzumab are ongoing in lymphoma and other B-cell malignancies, including phase Ib/II studies in NHL as monotherapy and in combination with other drug regimens used to treat NHL, such as R-CHOP (rituximab plus cyclophosphamide, doxorubicin, vincristine, prednisone), CHP (cyclophosphamide, doxorubicin, prednisone), or the antibody-drug conjugate polatuzumab vedotin. (ascopost.com)

The second part of the presentation will focus on the characterization of a bispecific antibody fusion protein in different formulations, and how DLS-based formulation ranking correlates with the ranking based on aggregates formed after long-term storage. (biopharminternational.com)

Anti-CD20/CD3 T cell-dependent bispecific antibody for the treatment of B cell malignancies. (biooncology.com)
But despite promising results, RIT is not as successful against solid malignancies, which are usually more radioresistant and less accessible to radiolabeled antibodies ( 3 ). (frontiersin.org)

Since the Fc region is still intact, this allows for the bsMab to trigger common immune responses when recognized by an Fc receptor, such as antibody-dependent cell-mediated cytotoxicity or complement-dependent cytotoxicity. (wikipedia.org)
A flexible bispecific antibody (bsMAb) multistep, pretargeting system that potentially can be developed for use with a variety of different imaging or therapeutic agents is described herein. (aacrjournals.org)

In vitro, both bispecific antibodies exhibited highly selective blocking of TGFβ activity in PD-1-high and CD5-high T cell populations. (biospace.com)
A number of bispecific antibody formats have exhibited strong tumor cytotoxicity in vitro and in vivo. (spandidos-publications.com)
The purified bispecific antibody is able to trigger T cell‑mediated HER2‑specific cytotoxicity in vitro and in vivo. (spandidos-publications.com)

Lu D, Zhang H, Koo H et al (2005) A fully human recombinant IgG-like bispecific antibody to both the epidermal growth factor receptor and the insulin-like growth factor receptor for enhanced antitumor activity. (springer.com)
Antibody-dependent cell-mediated cytotoxicity, one of the most prominent modes of action of antitumor antibodies, suffers from important limitations due to the need for optimal interactions with Fcγ receptors. (nih.gov)
Genentech is exploring the potential of two innovative T-cell bispecific antibody structures to reinitiate an antitumor immune response across multiple tumor types. (biooncology.com)
Therefore, bispecific antibodies may be used to promote antitumor immune activity, while bypassing steps in the cancer immunity cycle . (biooncology.com)

Multistep targeting systems represent highly selective alternatives to targeting systems using directly radiolabeled antibodies for diagnostic and therapeutic applications. (aacrjournals.org)
However, the possibility of using this radionuclide with a directly radiolabeled antibody for RIT is limited by its short physical half-life and the specific activities obtained during direct radiolabeling of antibodies (70-80 MBq/nmol) ( 7 - 9 ) as well as slow tumor uptake ( 11 , 12 ). (snmjournals.org)

HONG KONG - China's Suzhou Alphamab Co. Ltd. has obtained the IND approval from regulators for its HER2 bispecific antibody, KN-026. (bioworld.com)
In another example, a bispecific composed of a moderately internalizing antibody arm (anti-HER2) and an internalization-inducing antibody arm (anti-CD63, anti-PRLR, or anti-APLP2) was constructed and used to improve ADC uptake ( 5-7 ). (aacrjournals.org)
However, despite those efforts, the bispecific ADC only showed limited improvement over the parental monospecific anti-HER2 ADC, suggesting that key parameters regarding this design remains to be delineated. (aacrjournals.org)
Trastuzumab and pertuzumab are able to directly inhibit HER2 activities and induce antibody-dependent cell-mediated cytotoxicity. (spandidos-publications.com)
The two antibodies may increase the survival time when combined with chemotherapy in patients with HER2-overexpressing breast cancer (10-12). (spandidos-publications.com)
Numerous bispecific antibodies targeting different tumor biomarkers, including HER2, have also been reported (24-27). (spandidos-publications.com)

A combination of B7-H3 x CD28 and a B7-H3 x CD3 bispecific antibody enhanced anti-tumor activity compared to either bispecific antibody alone in an in vivo model of breast cancer. (biospace.com)
Xencor engineered two XmAb bispecific antibodies, PD-1 x TGFβR2 and CD5 x TGFβR2, to selectively block the suppressive activity of TGFβ on specific T-cell populations and to enhance their anti-tumor activity while avoiding the toxicity associated with systemic blockade. (biospace.com)
Anti-tumor activity was enhanced when combined with an anti-PD-1 antibody, compared to anti-PD-1 alone or an anti-PD-L1/TGFβ trap. (biospace.com)
Anti-tumor activity was enhanced when combined with an anti-PD-1 antibody. (ariva.de)

I think bispecific antibodies will take the 'bite' out of the CAR T-cell market. (ascopost.com)

Anatomy10

Organisms7

Diseases3

Chemicals and Drugs71

Analytical, Diagnostic and Therapeutic Techniques and Equipment33

Phenomena and Processes23

Disciplines and Occupations1

Information Science3

Health Care3

Immunotherapy of human tumors with T-cell-activating bispecific antibodies: stimulation of cytotoxic pathways in vivo. (1/429)

Dual specificity antibodies using a double-stranded oligonucleotide bridge. (2/429)

An effective strategy of human tumor vaccine modification by coupling bispecific costimulatory molecules. (3/429)

Carcinoembryonic antigen (CEA)-specific T-cell activation in colon carcinoma induced by anti-CD3 x anti-CEA bispecific diabodies and B7 x anti-CEA bispecific fusion proteins. (4/429)

Two-step targeting and dosimetry for small cell lung cancer xenograft with anti-NCAM/antihistamine bispecific antibody and radioiodinated bivalent hapten. (5/429)

Expression and characterization of bispecific single-chain Fv fragments produced in transgenic plants. (6/429)

Novel tetravalent and bispecific IgG-like antibody molecules combining single-chain diabodies with the immunoglobulin gamma1 Fc or CH3 region. (7/429)

Simultaneous activation of T cells and accessory cells by a new class of intact bispecific antibody results in efficient tumor cell killing. (8/429)

Antibodies, Bispecific

Antibodies

Antibodies, Monoclonal

Antibody Specificity

Maytansine

Immunoconjugates

Single-Chain Antibodies

Immunoglobulin Heavy Chains

Antibodies, Viral

Patents as Topic

Actinium

Inventions

Newcastle disease virus

Tablets

Newcastle Disease

HN Protein

Cancer Vaccines

Antigens, CD3

Haptens

Immunoglobulin Fab Fragments

Killer Cells, Natural

Immunoglobulin Fragments

Immunotherapy of human tumors with T-cell-activating bispecific antibodies: stimulation of cytotoxic pathways in vivo. (1/429)

Dual specificity antibodies using a double-stranded oligonucleotide bridge. (2/429)

An effective strategy of human tumor vaccine modification by coupling bispecific costimulatory molecules. (3/429)

Carcinoembryonic antigen (CEA)-specific T-cell activation in colon carcinoma induced by anti-CD3 x anti-CEA bispecific diabodies and B7 x anti-CEA bispecific fusion proteins. (4/429)

Two-step targeting and dosimetry for small cell lung cancer xenograft with anti-NCAM/antihistamine bispecific antibody and radioiodinated bivalent hapten. (5/429)

Expression and characterization of bispecific single-chain Fv fragments produced in transgenic plants. (6/429)

Novel tetravalent and bispecific IgG-like antibody molecules combining single-chain diabodies with the immunoglobulin gamma1 Fc or CH3 region. (7/429)

Simultaneous activation of T cells and accessory cells by a new class of intact bispecific antibody results in efficient tumor cell killing. (8/429)

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Paper: Activity of CD19/CD3 Bispecific Antibodies in Chronic Lymphocytic Leukemia

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What role can bispecific antibodies play in cancer targeting? A hypothesis. - Semantic Scholar

Balancing Efficacy and Selectivity of Bispecific c-METxEGFR Antibodies

Amgen and Immatics Enter Strategic Collaboration to Develop Novel Bispecific Cancer Immunotherapies

Novel Bispecific Immunotherapy Yields Responses in Melanoma

Micromets BiTE Antibody Blinatumomab (MT103/MEDI-538) Demonstrates Durable Responses in Patients with Relapsed Non-Hodgkin......

Blinatumomab Versus Standard of Care Chemotherapy in Patients With Relapsed or Refractory Acute Lymphoblastic Leukemia (ALL) -...

ECOG E1910: A Phase III Randomized Trial of Blinatumomab for Newly Diagnosed BCR-ABL-negative B lineage Acute Lymphoblastic...

Bispecific and Trispecific Antibodies | Absolute Antibody

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Blinatumomab in Treating Younger Patients With Relapsed B-cell Acute Lymphoblastic Leukemia - Full Text View - ClinicalTrials...

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