• Adoptive cellular therapy transmits the sensitized T cells to patients with low cellular immune function, which helps patients obtain antitumor immunity. (hindawi.com)
  • They can inhibit the growth of tumor cells, kill them via phagocytosis, and promote anti-tumor immunity. (frontiersin.org)
  • On the basis of recent advances in the understanding of antitumor immunity, we designed a three-step approach to in situ immunization to lymphoma: (i) inducing immunogenic tumor cell death with the chemotherapeutic drug doxorubicin. (aacrjournals.org)
  • Due to their proficiency at antigen presentation, DCs are key coordinators in the induction of antitumor immunity. (moffitt.org)
  • Alexandra Gabriela Barros Ferreira defends her Ph.D. thesis "Restoring antitumor immunity with dendritic cell reprogramming strategies" on Friday, 17 November, 2023. (lu.se)
  • My Ph.D. studies have focused on restoring anti-tumor immunity with dendritic cell reprogramming strategies. (lu.se)
  • The efficacy of T cell-based immunotherapy to treat cancer patients remains a challenge partly because of the weak activity toward subdominant tumor antigens (TAg) and to tumors expressing suboptimal TAg levels. (elsevierpure.com)
  • Rosenberg, S.A. & Restifo, N.P. Adoptive cell transfer as personalized immunotherapy for human cancer. (nature.com)
  • Tumor immunotherapy brings substantial and long-term clinical benefits that can even cure tumors. (hindawi.com)
  • Tumor immunotherapy refers to novel therapeutic measures that turn the immune system into a destructive force against tumors [ 1 ]. (hindawi.com)
  • In recent years, tumor immunotherapy has achieved significant success in various cancers and has been one of the hotspots in the life sciences, especially immune checkpoint inhibitors and adoptive cellular therapy [ 3 ]. (hindawi.com)
  • Moffitt Cancer Center continues to distinguish itself as a world leader in the development of novel immunotherapy treatments, capitalizing on the natural power of the body's immune system to defend itself against the growth and spread of cancerous cells. (moffitt.org)
  • It is a phase 2b randomized trial of autologous dendritic cell immunotherapy (CMN-001) plus standard treatment for advanced renal cell carcinoma after a nephrectomy ( MCC 21083 ). (moffitt.org)
  • This CMN-001 is an autologous, tumor antigen-loaded dendritic cell immunotherapy. (moffitt.org)
  • Immunotherapy can fail in patients with cancer when certain cancer cells can hide from the immune system. (lu.se)
  • However, cDC1 can be compromised in cancer patients and some cancer cells lack these antigen-presenting proteins on their surface, impacting immunotherapy response. (lu.se)
  • Infiltration, accumulation, and survival of chimeric antigen receptor T (CAR-T) cells in solid tumors is crucial for tumor clearance. (nature.com)
  • Adoptive cellular therapy, especially chimeric antigen receptor (CAR) T cell therapy, has gained unprecedented success among hematologic tumors [ 11 ]. (hindawi.com)
  • Immunotherapies include checkpoint inhibitory antibodies, chimeric antigen receptor (CAR) T-cells, cancer vaccines, and oncolytic viruses. (moffitt.org)
  • Chimeric monoclonal antibodies activate antigen-presenting cells (APCs) and T cells more effectively than murine monoclonal antibodies but can still induce production of human anti-chimeric antibodies. (msdmanuals.com)
  • Recent reports indicate that Toll-like receptor (TLR) stimulation on T cells can lower the activation threshold. (elsevierpure.com)
  • In this study, we examined the antitumor activity and survival of TLR2-MyD88-stimulated CD8 T cells derived from melanoma patients and T-cell receptor transgenic pmel mice. (elsevierpure.com)
  • This was accompanied by fewer tumor-infiltrating CD8 + T cells, and STZ-mice had fewer tumor-infiltrating CD11c + dendritic cells (DCs) than normoglycemic mice. (nature.com)
  • Histopathological analyses showed increased infiltration of dendritic cells (DC) and T cells into tumor tissues following 7 × 19 CAR-T cell therapy. (nature.com)
  • Differing activities of homeostatic chemokines CCL19, CCL21, and CXCL12 in lymphocyte and dendritic cell recruitment and lymphoid neogenesis. (nature.com)
  • Doxorubicin enhances the expression of "eat-me" signals by dying tumor cells, facilitating their phagocytosis by dendritic cells (DC). (aacrjournals.org)
  • The latest addition to oncotherapy is the use of dendritic cell (DC) vaccine therapy. (moffitt.org)
  • A dendritic cell vaccine is a cross between a vaccine and a cell therapy. (moffitt.org)
  • These dendritic cells are like immune system factories and make other molecules that activate critical parts of the innate and adaptive immune system. (moffitt.org)
  • Dendritic cells can be used as a vaccine by preparing together with either peptides or small portions of tumor antigens and they can then be injected into the body. (moffitt.org)
  • Now researchers at Moffitt are working to develop a dendritic cell vaccine targeting HER3, a protein involved in the growth and spread of many different cancer types. (moffitt.org)
  • They're injecting HER2 pulsed dendritic cells (MCC 20915) made from the patient back into their breast tumor before chemotherapy. (moffitt.org)
  • Dendritic cell vaccines can potentially be used to treat different cancer types. (moffitt.org)
  • Dr. Jad Chahoud , a medical oncologist in the Department of Genitourinary Oncology at Moffitt Cancer Center, is conducting a study on dendritic cells for kidney cancer. (moffitt.org)
  • The active components of CMN-001 are autologous, matured dendritic cells, which have been co-electroporated with both in vitro transcribed (IVT) RNA from an autologous tumor specimen and CD40L RNA. (moffitt.org)
  • In 2018, our research group identified the three transcription factors that allow us to convert fibroblasts, for example from the skin, into type 1 conventional dendritic cells (cDC1). (lu.se)
  • Immune checkpoint inhibitors (ICIs), including antibodies against programmed cell death-1 (PD-1) and PD-1 ligand-1 (PD-L1), induce their anti-tumor effects by improving the function of immune cells 11 . (nature.com)
  • To induce hyperglycemia, mice were intraperitoneally injected with STZ, which can damage pancreatic β cells resulting in the development of insulin dependent diabetes, a model of type 1 diabetes mellitus (T1DM). (nature.com)
  • We identified the HLA-A2 restricted T cell epitopes from MAGE-A3 that could effectively induce the activation and cytotoxicity of CD8+ T cells using artificial APC in vitro . (thno.org)
  • The SQZ AAC platform is designed to induce antigen presentation in vivo by deriving antigen carriers from engineering red blood cells (RBCs) with tumor specific antigens and adjuvants. (stockhouse.com)
  • Its SQZ TAC platform is designed to induce antigen-specific immune tolerance in vivo by utilizing a similar approach to the AAC platform. (stockhouse.com)
  • By using direct reprogramming strategies, I could induce the expression of tumor antigens on the surface of cancer cells, making them visible to the immune system again. (lu.se)
  • We focused particularly on harnessing reprogramming, or direct cellular reprogramming, to induce antigen presentation in cancer cells. (lu.se)
  • Direct reprogramming strategies with cDC1-specific factors can induce antigen-presentation in cancer cells, making cancer cells visible to the immune system and easier to fight. (lu.se)
  • Macrophages are the most abundant white blood cells in the immune microenvironment and have a high degree of heterogeneity. (frontiersin.org)
  • Fibrotic livers are characterized by an inflammatory microenvironment that is composed of various immunologically active cells, including liver-resident populations (e.g. (mdpi.com)
  • While inflammatory injury drives both fibrogenesis and carcinogenesis, the tolerogenic microenvironment of the liver conveys immunosuppressive effects that encourage tumor growth. (mdpi.com)
  • In situ immunization aims at generating antitumor immune responses through manipulating the tumor microenvironment. (aacrjournals.org)
  • Analysis of 7 L540Cy sub‐lines re‐established ex vivo from mice that relapsed after having achieved complete remission (CR) after therapy with a single IT showed that the surviving tumor cells were antigen‐deficient variants which were resistant to the original IT, but which could be killed by ITs directed against other target antigens. (elsevierpure.com)
  • Thus, IT cocktails give superior results against human H‐RS cells, both in vitro and in vivo. (elsevierpure.com)
  • The DNMT3A-mutated AML cells attenuated M1 macrophage polarization and resisted its killing effect in vitro and in vivo . (frontiersin.org)
  • In vivo , CWO induced transcriptional changes in immune-related genes, resulting in cytotoxic T cell-dependent tumor regression. (biorxiv.org)
  • Wild-type or MyD88 -/- mice treated with TLR2 ligand and pmel T cells, but not TLR2 -/- pmel or MyD88 -/- pmel T cells, showed tumor regression of an established melanoma tumor. (elsevierpure.com)
  • Pembrolizumab (Keytruda), a humanized monoclonal anti-PD-1 antibody, is the first anti-PD-1 antibody approved by the FDA for the treatment of patients with unresectable or metastatic melanoma, non-small-cell lung cancer (NSCLC), head and neck squamous cell carcinoma, cervical cancer, colorectal cancer, and gastric/gastroesophageal junction cancer [ 4 - 10 ]. (hindawi.com)
  • Healthy humans develop spontaneous CD8+ T cell responses to melanoma associated antigens (MA) expressed by normal melanocytes. (mdpi.com)
  • Adoptive cell therapy using engineered T-cell receptors (TCRs) targeting cancer-testis antigens, such as Melanoma-associated antigen 3 (MAGE-A3), is a potential approach for the treatment of NSCLC. (thno.org)
  • In mice, 7 × 19 CAR-T cells achieved complete regression of pre-established solid tumors and prolonged mouse survival, with superior anti-tumor activity compared to conventional CAR-T cells. (nature.com)
  • Figure 2: Complete regression of pre-established solid tumor by treatment with 7 × 19 CAR-T cells. (nature.com)
  • Daily topical treatment with CWO induced dramatic regression of pre-malignant skin tumors and a two-fold reduction in cutaneous squamous cell carcinomas. (biorxiv.org)
  • Together, these studies identify T cell-mediated tumor regression as the mechanism through which a plant-derived essential oil diminishes established tumor burden. (biorxiv.org)
  • SUMMARY BLURB Essential oil derived from the camphor tree acts by stimulating immune cell-dependent regression of skin tumors in a mouse model of cutaneous squamous cell carcinoma. (biorxiv.org)
  • however, it remains unknown whether the anti-tumor effects of anti-programmed cell death-1 antibody (PD-1-Ab) treatment are changed in hyperglycemic conditions. (nature.com)
  • To investigate the effect of hyperglycemia on anti-tumor function induced by anti-PD-1 antibody treatment, we treated STZ-induced diabetic mice with subcutaneous MC38 colon carcinoma tumors with anti-PD-1 antibody, and examined changes in tumor growth, the number of tumor-infiltrating immune cells, and the expression of chemokines and chemokine receptors. (nature.com)
  • Mice were intraperitoneally injected with STZ or sodium citrate buffer (CB) 7 days before subcutaneous inoculation with MC38 cells in the right flank on day 0 (Fig. 1 A). Then, the mice were treated with anti-PD-1 antibody or normal rat IgG on days 5, 8, and 11. (nature.com)
  • The effect of anti-PD-1 antibody on MC38 tumor is attenuated in STZ-induced diabetic mice. (nature.com)
  • In this investigation a human RCC tissue microarray (TMA) (n=374) predominantly consisting of the most common histological tumor subtypes was hybridized with an ERV-K env antibody and correlated with patient clinical data. (frontiersin.org)
  • Murine monoclonal antibodies are produced by injecting a mouse with an antigen, harvesting its spleen to obtain B cells that are producing antibody specific to that antigen, fusing those cells with immortal mouse myeloma cells, growing these hybridoma cells (eg, in cell culture), and harvesting the antibody. (msdmanuals.com)
  • In both cases, the process usually begins as above with production of mouse hybridoma cells that make antibody to the desired antigen. (msdmanuals.com)
  • The resultant DNA is placed in a mammalian cell culture, which then expresses the resultant gene, producing the desired antibody. (msdmanuals.com)
  • four times fewer cells were needed to generate antitumor responses. (elsevierpure.com)
  • Although epigenetically silenced, endogenous retroviral (ERV) genes become activated in tumors and function to ignite immune responses. (frontiersin.org)
  • Following treatment of mice with 7 × 19 CAR-T cells, both recipient conventional T cells and administered CAR-T cells generated memory responses against tumors. (nature.com)
  • However, systematic analysis of T cell immune responses to MAGE-A3 antigen and corresponding antigen-specific TCR is still lacking. (thno.org)
  • Although immune checkpoint blockade (ICB) reinvigorates anti-tumor immune responses by disrupting co-inhibitory T-cell signaling, relapse frequently occurs after ICB treatment and acquired resistance often emergence after initial response [ 4 ]. (thno.org)
  • Because of the vesicant activity of doxorubicin, microparticles made of biodegradable polymer poly(lactide-co-glycolide) or PLGA can safely deliver doxorubicin intratumorally and are effective vaccine adjuvants, (ii) enhancing T-cell activation using anti-OX40 and (iii) sustaining T-cell responses by checkpoint blockade using anti-CTLA-4. (aacrjournals.org)
  • In mice, this three-step therapy induced CD4- and CD8-dependent systemic immune responses that enhanced T-cell infiltration into distant tumors, leading to their eradication and significantly improving survival. (aacrjournals.org)
  • These results suggest that the STZ-induced hyperglycemia impairs the effect of PD-1-Ab treatment on MC38 tumor growth, and is accompanied by reduced infiltration of DCs and CD8 + T cells and decreased expression of CCL7 and CXCL9. (nature.com)
  • Figure 3: Infiltration of tumor tissues treated with 7 × 19 CAR-T cells by both T cells and DCs. (nature.com)
  • These ITs, BB10.dgA (CD2S), HRS3.dgA (CD30), and IRac.dgA (70 kDa), strongly inhibited the growth of L540Cy H‐RS cells in vitro. (elsevierpure.com)
  • In this study, we comprehensively screened HLA-A2 restricted MAGE-A3 tumor epitopes and characterized the corresponding TCRs using in vitro artificial antigen presentation cells (APC) system, single-cell transcriptome and TCR V(D)J sequencing, and machine-learning. (thno.org)
  • In vitro , doxorubicin microparticles were less cytotoxic to DCs than to B lymphoma cells, did not require internalization by tumor cells, and significantly enhanced phagocytosis of tumor cells by DCs as compared with soluble doxorubicin. (aacrjournals.org)
  • EXPERIMENTAL DESIGN: Patients ≥18 years of age with selected advanced solid tumors [namely, adenoid cystic carcinoma (ACC)] and hematologic malignancies were eligible. (bvsalud.org)
  • The enhanced antitumor activity of TLR2-MyD88-stimulated T cells was associated with increased effector function but perhaps more importantly with improved survival of T cells. (elsevierpure.com)
  • Two retrospective studies from Israel 12 and Japan 13 recently reported that diabetes was negatively correlated to overall survival in patients with non-small cell lung cancer (NSCLC) treated with ICIs. (nature.com)
  • Renal cell carcinoma (RCC) is one of the ten most common cancers for men and women with an approximate 75% overall 5-year survival. (frontiersin.org)
  • High ERV-K env total protein expression of all tumor subtypes significantly correlated with low tumor grading and a longer disease specific survival using multivariable analyses. (frontiersin.org)
  • This study supports ERV-K env as a single prognostic indicator for better survival of RCC, which we propose represents a new tumor antigen. (frontiersin.org)
  • Advanced non-small cell lung cancer (NSCLC) is the most common type of lung cancer with poor prognosis. (thno.org)
  • A cohort of HLA-A2+ NSCLC donors demonstrated that the number of epitope specific CD8+ T cells increased in NSCLC than healthy controls when measured with tetramer derived from the candidate MAGE-A3 epitopes, especially epitope Mp4 (MAGE-A3: 160-169, LVFGIELMEV). (thno.org)
  • Non-small cell lung cancer (NSCLC), the most common subtype, comprised approximately 85% of the newly diagnosed lung cancer cases [ 2 ]. (thno.org)
  • This is a summary of a research study called ARROW, which tested a medicine called pralsetinib in patients with non-small cell lung cancer (NSCLC), thyroid cancer, and other advanced solid tumours caused by a change in a gene called RET. (bvsalud.org)
  • Overall, the ARROW study showed that pralsetinib was effective in shrinking tumours in patients with RET fusion+ NSCLC regardless of previous treatment history. (bvsalud.org)
  • Immune checkpoint inhibitors (ICIs) are antibodies that target crucial signaling pathways, such as programmed death 1 (PD-1)/programmed death-ligand 1 (PD-L1), and cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), to improve the activation of T cells and enhance the immune response to cancer cells. (hindawi.com)
  • After the co-culture, the increase in pro-inflammatory cytokine expression in the mutant cells was significantly lower than that in the control group, while that in immunosuppressive factors was not significantly different. (frontiersin.org)
  • Resistin significantly promoted the expression of inflammatory proteins in AML cells. (frontiersin.org)
  • M1 macrophages have strong pro-inflammatory and antigen-presenting capabilities. (frontiersin.org)
  • they are used to treat solid and hematopoietic tumors, inflammatory disorders, and infections. (msdmanuals.com)
  • The degree of methylation affects the expression of target genes and has a significant impact on cell proliferation, apoptosis, cytokine secretion, and cell activity ( 6 , 7 ). (frontiersin.org)
  • Fully human monoclonal antibodies are produced using transgenic mice that contain human immunoglobulin genes or using phage display (ie, a bacteriophage-based cloning method) of immunoglobulin genes isolated from human B cells. (msdmanuals.com)
  • The Company is focused on unlocking the full potential of cell therapies to benefit patients. (stockhouse.com)
  • CMN-001 is indicated for the treatment of intermediate/poor-risk patients with advanced renal cell carcinoma (RCC) in combination with nivolumab plus ipilimumab as first-line therapy and in combination with lenvatinib plus everolimus as 2nd line therapy post-first-line failure. (moffitt.org)
  • Patients were asked to take four pills (adding up to 400 mg) of pralsetinib each day and were checked for any changes in their tumours, as well as for any side effects. (bvsalud.org)
  • After an average of 8 months of treatment with pralsetinib, 72% of previously untreated patients and 59% of patients who had previously received chemotherapy had considerable shrinkage of their tumours. (bvsalud.org)
  • Among 10 patients with tumours which had spread to the brain (all of whom had received previous treatments), 70% had their tumours shrink greatly in the brain after treatment with pralsetinib. (bvsalud.org)
  • On average, patients lived with little to no tumour growth for 16 months. (bvsalud.org)
  • In previously untreated patients, the most common severe side effects that were considered related to pralsetinib treatment were decreased white blood cells (neutrophils and lymphocytes), increased blood pressure, and an increase in a blood protein called creatine phosphokinase. (bvsalud.org)
  • In previously treated patients, the severe side effects were decreased white blood cells (neutrophils, lymphocytes, and leukocytes), increased blood pressure, and low levels of red blood cells. (bvsalud.org)
  • Cell proliferation and invasion were assayed using the kidney cell lines HEK293 with wild-type p53 and a ccRCC cell line MZ1257RC mutated for p53. (frontiersin.org)
  • HEK293 cells demonstrated a restriction of ERV-K113 env expression and invasion with no changes in proliferation in the absence of Aza. (frontiersin.org)
  • These data highlight a previously unappreciated role for activating TLR-MyD88 signals in tumor-reactive T lymphocytes. (elsevierpure.com)
  • Kupffer cells, hepatic stellate cells and sinusoidal endothelium) and infiltrating leukocytes (e.g., monocytes, monocyte-derived macrophages, neutrophils and lymphocytes). (mdpi.com)
  • Its clinical-stage cell therapy candidates include SQZ Enhanced APC (eAPC. (stockhouse.com)
  • CONCLUSIONS: CB-103 had a manageable safety profile and biological activity but limited clinical antitumor activity as monotherapy in this first-in-human study. (bvsalud.org)
  • This was at least in part due to the non‐homogeneous distribution of CD25, CD30 or IRac on the L540Cy H‐RS target cells and to the fact that sub‐populations deficient in one antigen nevertheless expressed appreciable levels of the other target antigens. (elsevierpure.com)
  • Transcriptomic profiling of T-cell populations in non-muscle invasive and muscle invasive bladder cancer. (lu.se)
  • IT cocktails were also superior as anti‐tumor agents in nude mice with solid L540Cy tumors. (elsevierpure.com)
  • We analyzed the effect of PD-1-Ab on tumor growth in streptozotocin-induced diabetic mice (STZ-mice) subcutaneously inoculated with MC38 (a colon carcinoma cell line). (nature.com)
  • mRNA expression levels of CXCL9, a chemokine recruiting CD8 + T cells, were lower in dLNs of STZ-mice than in normoglycemic mice after PD-1-Ab treatment, and its protein was expressed in DCs. (nature.com)
  • High cleavage efficiency of a 2A peptide derived from porcine teschovirus-1 in human cell lines, zebrafish and mice. (nature.com)
  • Sixteen histological tumor subtypes exist and the most common are papillary, chromophobe and clear cell renal cell carcinoma (ccRCC) representing 85% of all RCC. (frontiersin.org)
  • Depletion of recipient T cells before 7 × 19 CAR-T cell administration dampened the therapeutic effects of 7 × 19 CAR-T cell treatment, suggesting that CAR-T cells and recipient immune cells collaborated to exert anti-tumor activity. (nature.com)
  • We tested an essential-oil derivative, camphor white oil (CWO), for anti-tumor activity in a mouse model of keratinocyte-derived skin cancer. (biorxiv.org)
  • This dose-escalation/expansion study aimed to determine safety, pharmacokinetics, and preliminary antitumor activity. (bvsalud.org)
  • Statistical and machine-learning based analyses demonstrated that the MAGE-A3-Mp4 epitope-specific CD8+ T cell clones were mostly in effector and proliferating state. (thno.org)
  • Figure 1: 7 × 19 CAR-T cells show improved immune function. (nature.com)
  • Activating TLR-MyD88 signals in patient-derived T cells also reduced the activation threshold to several weakly immunogenic TAgs, resulting in increased cytokine production, expansion, and cytotoxicity. (elsevierpure.com)
  • TLR2-stimulated pmel CD8 T cells, but not TLR2 -/- pmel or MyD88 -/- pmel T cells, responded to significantly lower TAg levels and resulted in increased production of effector molecules and cytotoxicity. (elsevierpure.com)
  • In xenografts, the tumor volumes in the experimental group were significantly larger than those in the control group, and the proportion of M2 macrophages was significantly higher. (frontiersin.org)
  • Kakarla, S. & Gottschalk, S. CAR T cells for solid tumors: armed and ready to go? (nature.com)
  • Related studies have reported that the complete response rate of CD19-CAR-T cells in hematological malignancies is approximately 88-90% [ 13 , 14 ]. (hindawi.com)
  • The protein synthesis of this cell line was reduced more efficiently by the combination of 2 of these ITs than by BB10.dgA, HRS3.dgA or IRac.dgA alone. (elsevierpure.com)
  • Research has intensified to understand ERV protein function and their role as tumor antigens and targets for cancer (immune) therapy. (frontiersin.org)
  • The suppressive effect of PD-1-Ab on tumor growth was attenuated. (nature.com)
  • Her research involves direct reprogramming approaches, which function like a Trojan horse, enabling cancer cells to be targeted by the immune system. (lu.se)
  • In oncology, it is developing cell therapy platforms that are based on directing tumor antigen-specific immune activation via engineered antigen presentation. (stockhouse.com)
  • Transfecting these cell lines with a codon optimized ERV-K113 env overexpressing CMV vector was performed with or without 5'-Aza-2'-deoxycytidine (Aza) treatment to sustain promoter de-methylation. (frontiersin.org)
  • when it comes to cancer they are critical as they present tumor antigens to the killer cells of the immune system and orchestrate the anti-tumor immune response. (lu.se)
  • Specifically, ERV-K members were originally identified due to their similarity to the Mouse Mammary Tumor Virus (MMTV) and are subdivided into ten so-called human MMTV-like clades (HML1-10) ( 2 , 3 ). (frontiersin.org)
  • If the mouse gene for only the antigen-binding hypervariable regions of the variable region is used, the product is termed "humanized. (msdmanuals.com)
  • Importantly, T cells artificially expressing the MAGE-A3-Mp4 specific TCRs exhibited strong MAGE-A3+ tumor cell recognition and killing effect. (thno.org)
  • The SQZ eAPC platform is the second-generation product candidate designed to generate tumor specific CD8+ T cell activation to drive the antitumor immune response. (stockhouse.com)