Collagen Type X: A non-fibrillar collagen found primarily in terminally differentiated hypertrophic CHONDROCYTES. It is a homotrimer of three identical alpha1(X) subunits.Chondrogenesis: The formation of cartilage. This process is directed by CHONDROCYTES which continually divide and lay down matrix during development. It is sometimes a precursor to OSTEOGENESIS.Cartilage: A non-vascular form of connective tissue composed of CHONDROCYTES embedded in a matrix that includes CHONDROITIN SULFATE and various types of FIBRILLAR COLLAGEN. There are three major types: HYALINE CARTILAGE; FIBROCARTILAGE; and ELASTIC CARTILAGE.Chondrocytes: Polymorphic cells that form cartilage.Collagen: A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of SKIN; CONNECTIVE TISSUE; and the organic substance of bones (BONE AND BONES) and teeth (TOOTH).Collagen Type I: The most common form of fibrillar collagen. It is a major constituent of bone (BONE AND BONES) and SKIN and consists of a heterotrimer of two alpha1(I) and one alpha2(I) chains.Collagen Type III: A fibrillar collagen consisting of three identical alpha1(III) chains that is widely distributed in many tissues containing COLLAGEN TYPE I. It is particularly abundant in BLOOD VESSELS and may play a role in tissues with elastic characteristics.Collagen Type II: A fibrillar collagen found predominantly in CARTILAGE and vitreous humor. It consists of three identical alpha1(II) chains.Collagen Type IV: A non-fibrillar collagen found in the structure of BASEMENT MEMBRANE. Collagen type IV molecules assemble to form a sheet-like network which is involved in maintaining the structural integrity of basement membranes. The predominant form of the protein is comprised of two alpha1(IV) subunits and one alpha2(IV) subunit, however, at least six different alpha subunits can be incorporated into the heterotrimer.Collagen Type V: A fibrillar collagen found widely distributed as a minor component in tissues that contain COLLAGEN TYPE I and COLLAGEN TYPE III. It is a heterotrimeric molecule composed of alpha1(V), alpha2(V) and alpha3(V) subunits. Several forms of collagen type V exist depending upon the composition of the subunits that form the trimer.Fibrillar Collagens: A family of structurally related collagens that form the characteristic collagen fibril bundles seen in CONNECTIVE TISSUE.Collagen Type VI: A non-fibrillar collagen that forms a network of MICROFIBRILS within the EXTRACELLULAR MATRIX of CONNECTIVE TISSUE. The alpha subunits of collagen type VI assemble into antiparallel, overlapping dimers which then align to form tetramers.Collagen Type XI: A fibrillar collagen found primarily in interstitial CARTILAGE. Collagen type XI is heterotrimer containing alpha1(XI), alpha2(XI) and alpha3(XI) subunits.Growth Plate: The area between the EPIPHYSIS and the DIAPHYSIS within which bone growth occurs.Extracellular Matrix: A meshwork-like substance found within the extracellular space and in association with the basement membrane of the cell surface. It promotes cellular proliferation and provides a supporting structure to which cells or cell lysates in culture dishes adhere.Receptors, Collagen: Collagen receptors are cell surface receptors that modulate signal transduction between cells and the EXTRACELLULAR MATRIX. They are found in many cell types and are involved in the maintenance and regulation of cell shape and behavior, including PLATELET ACTIVATION and aggregation, through many different signaling pathways and differences in their affinities for collagen isoforms. Collagen receptors include discoidin domain receptors, INTEGRINS, and glycoprotein VI.Extracellular Matrix Proteins: Macromolecular organic compounds that contain carbon, hydrogen, oxygen, nitrogen, and usually, sulfur. These macromolecules (proteins) form an intricate meshwork in which cells are embedded to construct tissues. Variations in the relative types of macromolecules and their organization determine the type of extracellular matrix, each adapted to the functional requirements of the tissue. The two main classes of macromolecules that form the extracellular matrix are: glycosaminoglycans, usually linked to proteins (proteoglycans), and fibrous proteins (e.g., COLLAGEN; ELASTIN; FIBRONECTINS; and LAMININ).Procollagen: A biosynthetic precursor of collagen containing additional amino acid sequences at the amino-terminal and carboxyl-terminal ends of the polypeptide chains.Cells, Cultured: Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.Collagen Type XVIII: A non-fibrillar collagen found in BASEMENT MEMBRANE. The C-terminal end of the alpha1 chain of collagen type XVIII contains the ENDOSTATIN peptide, which can be released by proteolytic cleavage.Chick Embryo: The developmental entity of a fertilized chicken egg (ZYGOTE). The developmental process begins about 24 h before the egg is laid at the BLASTODISC, a small whitish spot on the surface of the EGG YOLK. After 21 days of incubation, the embryo is fully developed before hatching.Hydroxyproline: A hydroxylated form of the imino acid proline. A deficiency in ASCORBIC ACID can result in impaired hydroxyproline formation.Cartilage, Articular: A protective layer of firm, flexible cartilage over the articulating ends of bones. It provides a smooth surface for joint movement, protecting the ends of long bones from wear at points of contact.Osteochondrodysplasias: Abnormal development of cartilage and bone.Fibroblasts: Connective tissue cells which secrete an extracellular matrix rich in collagen and other macromolecules.Collagen Type XII: A fibril-associated collagen found in many tissues bearing high tensile stress, such as TENDONS and LIGAMENTS. It is comprised of a trimer of three identical alpha1(XII) chains.Fibronectins: Glycoproteins found on the surfaces of cells, particularly in fibrillar structures. The proteins are lost or reduced when these cells undergo viral or chemical transformation. They are highly susceptible to proteolysis and are substrates for activated blood coagulation factor VIII. The forms present in plasma are called cold-insoluble globulins.Basement Membrane: A darkly stained mat-like EXTRACELLULAR MATRIX (ECM) that separates cell layers, such as EPITHELIUM from ENDOTHELIUM or a layer of CONNECTIVE TISSUE. The ECM layer that supports an overlying EPITHELIUM or ENDOTHELIUM is called basal lamina. Basement membrane (BM) can be formed by the fusion of either two adjacent basal laminae or a basal lamina with an adjacent reticular lamina of connective tissue. BM, composed mainly of TYPE IV COLLAGEN; glycoprotein LAMININ; and PROTEOGLYCAN, provides barriers as well as channels between interacting cell layers.Pepsin A: Formed from pig pepsinogen by cleavage of one peptide bond. The enzyme is a single polypeptide chain and is inhibited by methyl 2-diaazoacetamidohexanoate. It cleaves peptides preferentially at the carbonyl linkages of phenylalanine or leucine and acts as the principal digestive enzyme of gastric juice.Proteoglycans: Glycoproteins which have a very high polysaccharide content.Sternum: A long, narrow, and flat bone commonly known as BREASTBONE occurring in the midsection of the anterior thoracic segment or chest region, which stabilizes the rib cage and serves as the point of origin for several muscles that move the arms, head, and neck.Microbial Collagenase: A metalloproteinase which degrades helical regions of native collagen to small fragments. Preferred cleavage is -Gly in the sequence -Pro-Xaa-Gly-Pro-. Six forms (or 2 classes) have been isolated from Clostridium histolyticum that are immunologically cross-reactive but possess different sequences and different specificities. Other variants have been isolated from Bacillus cereus, Empedobacter collagenolyticum, Pseudomonas marinoglutinosa, and species of Vibrio and Streptomyces. EC 3.4.24.3.Laminin: Large, noncollagenous glycoprotein with antigenic properties. It is localized in the basement membrane lamina lucida and functions to bind epithelial cells to the basement membrane. Evidence suggests that the protein plays a role in tumor invasion.RNA, Messenger: RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm.Collagen Diseases: Historically, a heterogeneous group of acute and chronic diseases, including rheumatoid arthritis, systemic lupus erythematosus, progressive systemic sclerosis, dermatomyositis, etc. This classification was based on the notion that "collagen" was equivalent to "connective tissue", but with the present recognition of the different types of collagen and the aggregates derived from them as distinct entities, the term "collagen diseases" now pertains exclusively to those inherited conditions in which the primary defect is at the gene level and affects collagen biosynthesis, post-translational modification, or extracellular processing directly. (From Cecil Textbook of Medicine, 19th ed, p1494)Hypertrophy: General increase in bulk of a part or organ due to CELL ENLARGEMENT and accumulation of FLUIDS AND SECRETIONS, not due to tumor formation, nor to an increase in the number of cells (HYPERPLASIA).Cattle: Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.Decorin: A small leucine-rich proteoglycan that interacts with FIBRILLAR COLLAGENS and modifies the EXTRACELLULAR MATRIX structure of CONNECTIVE TISSUE. Decorin has also been shown to play additional roles in the regulation of cellular responses to GROWTH FACTORS. The protein contains a single glycosaminoglycan chain and is similar in structure to BIGLYCAN.Collagen Type IX: A fibril-associated collagen usually found crosslinked to the surface of COLLAGEN TYPE II fibrils. It is a heterotrimer containing alpha1(IX), alpha2(IX) and alpha3(IX) subunits.Fibrosis: Any pathological condition where fibrous connective tissue invades any organ, usually as a consequence of inflammation or other injury.Aggrecans: Large HYALURONAN-containing proteoglycans found in articular cartilage (CARTILAGE, ARTICULAR). They form into aggregates that provide tissues with the capacity to resist high compressive and tensile forces.Calcification, Physiologic: Process by which organic tissue becomes hardened by the physiologic deposit of calcium salts.Collagenases: Enzymes that catalyze the degradation of collagen by acting on the peptide bonds.Skin: The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.Aminopropionitrile: Reagent used as an intermediate in the manufacture of beta-alanine and pantothenic acid.Collagen Type VII: A non-fibrillar collagen involved in anchoring the epidermal BASEMENT MEMBRANE to underlying tissue. It is a homotrimer comprised of C-terminal and N-terminal globular domains connected by a central triple-helical region.Epidermolysis Bullosa Acquisita: Form of epidermolysis bullosa characterized by trauma-induced, subepidermal blistering with no family history of the disease. Direct immunofluorescence shows IMMUNOGLOBULIN G deposited at the dermo-epidermal junction.Epidermolysis Bullosa Dystrophica: Form of epidermolysis bullosa characterized by atrophy of blistered areas, severe scarring, and nail changes. It is most often present at birth or in early infancy and occurs in both autosomal dominant and recessive forms. All forms of dystrophic epidermolysis bullosa result from mutations in COLLAGEN TYPE VII, a major component fibrils of BASEMENT MEMBRANE and EPIDERMIS.Epidermolysis Bullosa: Group of genetically determined disorders characterized by the blistering of skin and mucosae. There are four major forms: acquired, simple, junctional, and dystrophic. Each of the latter three has several varieties.Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Blister: Visible accumulations of fluid within or beneath the epidermis.

Articular cartilage repair using a tissue-engineered cartilage-like implant: an animal study. (1/149)

OBJECTIVE: Because articular cartilage has limited ability to repair itself, treatment of (osteo)chondral lesions remains a clinical challenge. We aimed to evaluate how well a tissue-engineered cartilage-like implant, derived from chondrocytes cultured in a novel patented, scaffold-free bioreactor system, would perform in minipig knees with chondral, superficial osteochondral, and full-thickness articular defects. DESIGN: For in vitro implant preparation, we used full-thickness porcine articular cartilage and digested chondrocytes. Bioreactors were seeded with 20x10(6) cells and incubated for 3 weeks. Subsequent to culture, tissue cartilage-like implants were divided for assessment of viability, formaldehyde-fixed and processed by standard histological methods. Some samples were also prepared for electron microscopy (TEM). Proteoglycans and collagens were identified and quantified by SDS-PAGE gels. For in vivo studies in adult minipigs, medial parapatellar arthrotomy was performed unilaterally. Three types of defects were created mechanically in the patellar groove of the femoral condyle. Tissue-engineered cartilage-like implants were placed using press-fit fixation, without supplementary fixation devices. Control defects were not grafted. Animals could bear full weight with an unlimited range of motion. At 4 and 24 weeks postsurgery, explanted knees were assessed using the modified ICRS classification for cartilage repair. RESULTS: After 3-4 weeks of bioreactor incubation, cultured chondrocytes developed a 700-microm- to 1-mm-thick cartilage-like tissue. Cell density was similar to that of fetal cartilage, and cells stained strongly for Alcian blue and safranin O. The percentage of viable cells remained nearly constant (approximately 90%). Collagen content was similar to that of articular cartilage, as shown by SDS-PAGE. At explantation, the gross morphological appearance of grafted defects appeared like normal cartilage, whereas controls showed irregular fibrous tissue covering the defect. Improved histologic appearance was maintained for 6 months postoperatively. Although defects were not always perfectly level upon implantation at explanation the implant level matched native cartilage levels with no tissue hypertrophy. Once in place, implants remodelled to tissues with decreased cell density and a columnar organization. CONCLUSIONS: Repair of cartilage defects with a tissue-engineered implant yielded a consistent gross cartilage repair with a matrix predominantly composed of type II collagen up to 6 months after implantation. This initial result holds promise for the use of this unique bioreactor/tissue-engineered implant in humans.  (+info)

A dominant interference collagen X mutation disrupts hypertrophic chondrocyte pericellular matrix and glycosaminoglycan and proteoglycan distribution in transgenic mice. (2/149)

Collagen X transgenic (Tg) mice displayed skeleto-hematopoietic defects in tissues derived by endochondral skeletogenesis.(1) Here we demonstrate that co-expression of the transgene product containing truncated chicken collagen X with full-length mouse collagen X in a cell-free translation system yielded chicken-mouse hybrid trimers and truncated chicken homotrimers; this indicated that the mutant could assemble with endogenous collagen X and thus had potential for dominant interference. Moreover, species-specific collagen X antibodies co-localized the transgene product with endogenous collagen X to hypertrophic cartilage in growth plates and ossification centers; proliferative chondrocytes also stained diffusely. Electron microscopy revealed a disrupted hexagonal lattice network in the hypertrophic chondrocyte pericellular matrix in Tg growth plates, as well as altered mineral deposition. Ruthenium hexamine trichloride-positive aggregates, likely glycosaminoglycans (GAGs)/proteoglycans (PGs), were also dispersed throughout the chondro-osseous junction. These defects likely resulted from transgene co-localization and dominant interference with endogenous collagen X. Moreover, altered GAG/PG distribution in growth plates of both collagen X Tg and null mice was confirmed by a paucity of staining for hyaluronan and heparan sulfate PG. A provocative hypothesis links the disruption of the collagen X pericellular network and GAG/PG decompartmentalization to the potential locus for hematopoietic failure in the collagen X mice.  (+info)

Expression of collagen and aggrecan genes in normal and osteoarthritic murine knee joints. (3/149)

OBJECTIVE: The STR/ort mouse strain develops osteoarthritis (OA) of the medial tibial cartilage whilst CBA mice do not develop this disease. We investigated whether changes occur in the expression of genes encoding major extracellular matrix proteins in the connective tissue of the murine knee joint in OA. DESIGN: Expression of the genes encoding collagens II (Col2alpha1), X (Col10alpha1), alpha2(XI) (Col11alpha2) and aggrecan (Agc) was detected in skeletally mature and immature male mice of the CBA and STR/ort strains by in situ hybridization. RESULTS: Col2alpha1 was expressed by chondrocytes of the tibial and patella-femoral cartilage and by the meniscal cartilage in all young mice (4-9 weeks) but only in the patella-femoral cartilage in older mice of both strains (36-45 weeks). In contrast Col2alpha1 was expressed by growth plate chondrocytes of both species at all ages. Similarly, Col2alpha1 transcripts were detected in cruciate ligament cells in both strains at all ages. Col10alpha1 transcripts were detected in cruciate ligament cells in both strains at all ages. Col10alpha1 expression was evident in the hypertrophic chondrocytes in the growth plate of young CBA and STR mice, but was not active in these cells in mature animals. However, Col10alpha1 was transcribed in articular chondrocytes of the tibia, meniscal and patella-femoral cartilages of all ages, in normal and osteoarthritic mice. Transcripts were also present in ligament of some mature animals. Col11alpha2 followed a similar pattern of expression in CBA cartilages to Col2alpha1, being active in adult growth plate but generally inactive in adult articular cartilages. Young CBA and STR/ort mice expressed Col11alpha2 in articular cartilage and very strongly throughout the growth plate. Agc expression was detected in all articular cartilages at all ages in both strains. Interestingly, transcripts for all four genes were absent in tibial articular chondrocytes located close to osteoarthritic lesions in STR/ort mice, indicating that these cells are unable to synthesize matrix proteins. Adult STR/ort mice also showed evidence of tissue remodeling around the periphery of the knee joint. Cells in remodeling areas actively transcribed Col2alpha1, Col10alpha1, Col11alpha2 and Agc. CONCLUSION: It is unlikely that OA develops in STR/ort mice because of failure to express major proteins in joint tissue. However, once lesions develop in articular cartilage neighbouring chondrocytes fail to express genes encoding several matrix proteins.  (+info)

Transglutaminase factor XIIIA in the cartilage of developing avian long bones. (4/149)

Previously, we showed that mRNA for transglutaminase factor XIIIA (FXIIIA) is up-regulated in the hypertrophic zone of the growth plate of the chicken tibiotarsus, a well-characterized model of long bone development. In the present study, we have studied the distribution of the FXIIIA protein and of transglutaminase enzymatic activity in this growth plate, as well as in the cartilage of the epiphysis, which includes that of the articular surface. By immunohistochemical analysis, the protein is detected in the zone of maturation, where it is mostly intracellular, and in the hypertrophic zone, where it is present both intracellularly and in the extracellular matrix. The intracellular enzyme is mostly a zymogen, as determined with an antibody specific for the activation peptide. Externalization of FXIIIA is accompanied by enzyme activation. To study the pattern of transglutaminase activity, a synthetic transglutaminase substrate, rhodamine-conjugated tetrapeptide (Pro-Val-Lys-Gly), was used for pulse labeling in organ cultures. Intensive incorporation of the fluorescent substrate was observed throughout the hypertrophic zone and in the cells surrounding the forming blood vessels. The patterns of FXIIIA immunostaining and substrate incorporation overlap almost completely. The cartilaginous factor XIIIA is different from the plasma form in that, both intracellularly and extracellularly, it exists as a monomer, as determined by Western analysis, whereas the plasma form of FXIII is a tetrameric complex composed of both A and B subunits. We also identified FXIIIA and transglutaminase activity within the articular and condylar regions of the tarsus, suggesting a possible involvement of mechanical pressure and/or stress in the production of the molecule and subsequent cross-linking of the cartilage matrix. Thus, transglutaminases, in particular FXIIIA, are involved in the formation of long bones through its activity both in the hypertrophic region of the growth plate and in the formation of articular/epiphyseal cartilages.  (+info)

Collagen X chains harboring Schmid metaphyseal chondrodysplasia NC1 domain mutations are selectively retained and degraded in stably transfected cells. (5/149)

Collagen X is a short chain, homotrimeric collagen expressed specifically by hypertrophic chondrocytes during endochondral bone formation and growth. Although the exact role of collagen X remains unresolved, mutations in the COL10A1 gene disrupt growth plate function and result in Schmid metaphyseal chondrodysplasia (SMCD). With the exception of two mutations that impair signal peptide cleavage during alpha1(X) chain biosynthesis, SMCD mutations are clustered within the carboxyl-terminal NC1 domain. The formation of stable NC1 domain trimers is a critical stage in collagen X assembly, suggesting that mutations within this domain may result in subunit mis-folding or reduce trimer stability. When expressed in transiently transfected cells, alpha1(X) chains containing SMCD mutations were unstable and presumed to be degraded intracellularly. More recently, in vitro studies have shown that certain missense mutations may exert a dominant negative effect on alpha1(X) chain assembly by formation of mutant homotrimers and normal-mutant heterotrimers. In contrast, analysis of cartilage tissue from two SMCD patients revealed that the truncated mutant message was fully degraded, resulting in 50% reduction of functional collagen X within the growth plate. Therefore, in the absence of data that conclusively demonstrates the full cellular response to mutant collagen X chains, the molecular mechanisms underlying SMCD remain controversial. To address this, we closely examined the effect of two NC1 domain mutations, one frameshift mutation (1963del10) and one missense mutation (Y598D), using both semi-permeabilized cell and stable cell transfection expression systems. Although able to assemble to a limited extent in both systems, we show that, in intact cells, collagen X chains harboring both SMCD mutations did not evade quality control mechanisms within the secretory pathway and were degraded intracellularly. Furthermore, co-expression of wild-type and mutant chains in stable transfected cells demonstrated that, although wild-type chains were secreted, mutant chains were largely excluded from hetero-trimer formation. Our data indicate, therefore, that the predominant effect of the NC1 mutations Y598D and 1963del10 is a reduction in the amount of functional collagen X within the growth cartilage extracellular matrix.  (+info)

Insight into Schmid metaphyseal chondrodysplasia from the crystal structure of the collagen X NC1 domain trimer. (6/149)

Collagen X is expressed specifically in the growth plate of long bones. Its C1q-like C-terminal NC1 domain forms a stable homotrimer and is crucial for collagen X assembly. Mutations in the NC1 domain cause Schmid metaphyseal chondrodysplasia (SMCD). The crystal structure at 2.0 A resolution of the human collagen X NC1 domain reveals an intimate trimeric assembly strengthened by a buried cluster of calcium ions. Three strips of exposed aromatic residues on the surface of NC1 trimer are likely to be involved in the supramolecular assembly of collagen X. Most internal SMCD mutations probably prevent protein folding, whereas mutations of surface residues may affect the collagen X suprastructure in a dominant-negative manner.  (+info)

TGFbeta2 mediates the effects of hedgehog on hypertrophic differentiation and PTHrP expression. (7/149)

The development of endochondral bones requires the coordination of signals from several cell types within the cartilage rudiment. A signaling cascade involving Indian hedgehog (Ihh) and parathyroid hormone related peptide (PTHrP) has been described in which hypertrophic differentiation is limited by a signal secreted from chondrocytes as they become committed to hypertrophy. In this negative-feedback loop, Ihh inhibits hypertrophic differentiation by regulating the expression of Pthrp, which in turn acts directly on chondrocytes in the growth plate that express the PTH/PTHrP receptor. Previously, we have shown that PTHrP also acts downstream of transforming growth factor beta (TGFbeta) in a common signaling cascade to regulate hypertrophic differentiation in embryonic mouse metatarsal organ cultures. As members of the TGFbeta superfamily have been shown to mediate the effects of Hedgehog in several developmental systems, we proposed a model where TGFbeta acts downstream of Ihh and upstream of PTHrP in a cascade of signals that regulate hypertrophic differentiation in the growth plate. This report tests the hypothesis that TGFbeta signaling is required for the effects of Hedgehog on hypertrophic differentiation and expression of PTHRP: We show that Sonic hedgehog (Shh), a functional substitute for Ihh, stimulates expression of Tgfb2 and Tgfb3 mRNA in the perichondrium of embryonic mouse metatarsal bones grown in organ cultures and that TGFbeta signaling in the perichondrium is required for inhibition of differentiation and regulation of Pthrp expression by Shh. The effects of Shh are specifically dependent on TGFbeta2, as cultures from Tgfb3-null embryos respond to Shh but cultures from Tgfb2-null embryos do not. Taken together, these data suggest that TGFbeta2 acts as a signal relay between Ihh and PTHrP in the regulation of cartilage hypertrophic differentiation.  (+info)

Linking hematopoiesis to endochondral skeletogenesis through analysis of mice transgenic for collagen X. (8/149)

Each skeletal element where marrow develops is first defined by a hypertrophic cartilage blueprint. Through programmed tissue substitution, the cartilaginous skeletal model is replaced by trabecular bone and marrow, with accompanying longitudinal tissue growth. During this process of endochondral ossification, hypertrophic cartilage expresses a unique matrix molecule, collagen X. Previously we reported that transgenic mice with dominant interference collagen X mutations develop variable skeleto-hematopoietic abnormalities, manifested as growth plate compressions, diminished trabecular bone, and reduced lymphatic organs (Nature 1993, 365:56). Here, histology and flow cytometry reveal marrow hypoplasia and impaired hematopoiesis in all collagen X transgenic mice. A subset of mice with perinatal lethality manifested the most severe skeletal defects and a reduction of marrow hematopoiesis, highlighted by a lymphocyte decrease. Thymic reduction is accompanied by a paucity of cortical immature T cells, consistent with the marrow's inability to replenish maturing cortical lymphocytes. Diminished spleens exhibit indistinct lymphatic nodules and red pulp depletion; the latter correlates with erythrocyte-filled vascular sinusoids in marrows. All mice display reduced B cells in marrows and spleens, and elevated splenic T cells. These hematopoietic defects underscore an unforeseen link between hypertrophic cartilage, endochondral ossification, and establishment of the marrow microenvironment required for blood cell differentiation.  (+info)

We will obtain the result x. A rare cause and a sporadic case of obtaining the result x with 100% probability and zero everywhere else. Predominantly with BMP2 (112261) and BMP6, is detected in synovial tissues, found in layers between joints. Thought to be controlled by shotgun expression of ORFs whose phase is not known as in shotgun ORFs, cDNA or genomic clones, such as stardust, or breadcrumbs search, and modulate fibroblast-like synoviocyte cell populations in inflamed synovium, 8 were located within a single PAC clone BMP6 was 1 product of the VG1-related sequence in the mouse Vgr1 on chromosome 13 between TFAP2 (107580) at the centromeric side and DSP (125647) on the telomeric side, showed down regulation of Indian hedgehog (ihh), (bmp6), and collagen type X (colX) expression, markers of chondrocyte maturation. To determine if the mutation caused alterations cannot be due to the direct action of the BMPs specifically reduced the STAR transcription GLD-1 in FSH secretion in vitro on the ...
J:122952 Hung IH, Yu K, Lavine KJ, Ornitz DM, FGF9 regulates early hypertrophic chondrocyte differentiation and skeletal vascularization in the developing stylopod. Dev Biol. 2007 Jul 15;307(2):300-13 ...
The PI3K pathway has been shown to affect numerous cellular processes in a tissue-specific fashion; for example, it is required for survival in different cell types such as cardiomyocytes [34], cellular differentiation in the case of osteoclasts and keratinocytes [35, 36], and proliferation and differentiation of osteoblasts [35]. It also stimulates differentiation of CD4+ T-cells [37] and development and proliferation of B cells [38, 39]. We hypothesized that the PI3K pathway has similar effects in the growth plate, promoting endochondral bone growth by increasing proliferation and differentiation of chondrocytes and by suppressing apoptosis.. We found that inhibition of PI3K with LY294002 results in decreased differentiation, in both primary chondrocytes (micromass cultures) and organ cultures. Markers of both early chondrocyte differentiation such as collagen II and glycosaminoglycans and of late hypertrophic differentiation such as collagen X, p57, Alkaline phosphatase activity and calcium ...
The short-limbed dwarfism metaphyseal chondrodysplasia type Schmid (MCDS) is linked to mutations in type X collagen, which increase ER stress by inducing misfolding of the mutant protein and subsequently disrupting hypertrophic chondrocyte differentiation. Here, we show that carbamazepine (CBZ), an autophagy-stimulating drug that is clinically approved for the treatment of seizures and bipolar disease, reduced the ER stress induced by 4 different MCDS-causing mutant forms of collagen X in human cell culture. Depending on the nature of the mutation, CBZ application stimulated proteolysis of misfolded collagen X by either autophagy or proteasomal degradation, thereby reducing intracellular accumulation of mutant collagen. In MCDS mice expressing the Col10a1.pN617K mutation, CBZ reduced the MCDS-associated expansion of the growth plate hypertrophic zone, attenuated enhanced expression of ER stress markers such as Bip and Atf4, increased bone growth, and reduced skeletal dysplasia. CBZ produced ...
Type X collagen (COL10A1) is a product of hypertrophic chondrocytes, which has been localized to presumptive mineralization zones of hyaline cartilage. Defects in type X collagen are the cause of Schmid type metaphyseal chondrodysplasia (SMCD), an inherited disorder of the osseous skeleton.. ...
Mild Coxa Vara & No Osteoarthritic Symptoms Symptom Checker: Possible causes include Schmid Metaphyseal Chondrodysplasia & Coxa Vara & Cystitis. Check the full list of possible causes and conditions now! Talk to our Chatbot to narrow down your search.
Joint inflammation causes meniscus degeneration and can exacerbate post-traumatic meniscus injuries by extracellular matrix degradation, cellular de-differentiation and cell death. The aim of this study was to examine whether anti-inflammatory interleukin-10 exerts protective effects in an in vitro model of TNF-α-induced meniscus degeneration. Meniscus tissue was harvested from the knees of adult cows. After 24 h of equilibrium explants were simultaneously treated with bovine TNF-α and IL-10. After an incubation time of 72 h cell death was measured histomorphometrically (nuclear blebbing, NB) and release of glycosaminoglycans (GAG, DMMB assay) and nitric oxide (NO, Griess-reagent) were analysed. Transcription levels (mRNA) of matrix degrading enzymes, collagen type X (COL10A1) and nitric oxide synthetase 2 (NOS2) were measured by quantitative real time PCR. TNF-α-dependent formation of the aggrecanase-specific aggrecan neoepitope NITEGE was visualised by immunostaining. Differences between groups
Untuk Informasi promo (mobil baru) daihatsu ayla dan type yang lainnya anda bisa langsung hubungi Marketing Executive kami di bawah ini atau klik disini. ...
Calculates the regression model analysis of the variance (ANOVA) values. Syntax SLR_ANOVA(X, Y, Intercept, Return_type) X is the...
During longitudinal development of the long bone cartilage, periarticular chondrocyte differentiation, which adds cells to the columnar region, is followed by chondrocyte hypertrophy, which reduces cells in the columnar region. Therefore, the length of the columnar chondrocyte region is determined by three parameters: the pace of periarticular chondrocyte differentiation, the pace of chondrocyte hypertrophy and the rate of columnar chondrocyte proliferation (Fig. 7). As upregulated Ihh signaling promotes periarticular chondrocyte differentiation and increases the rate of columnar chondrocyte proliferation (Kobayashi et al., 2005b), the proliferating columnar chondrocyte region would be increased if chondrocyte hypertrophy were not altered. Our observation that the columnar chondrocyte region was shorter in the PTHrP-/-;Ptch1c/-; Col2a1-Cre double mutant than in the PTHrP-/- single mutant (Fig. 2B, Fig. 3A) demonstrates that Hh signaling also acts to promote chondrocyte hypertrophy in the absence ...
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Chondrogenesis occurs via three steps: (a) commitment to chondrocyte differentiation by mesenchymal cells, seen as mesenchymal condensation; (b) chondrocyte proliferation in the growth plate to facilitate longitudinal development; and (c) differentiation of proliferating chondrocytes to hypertrophic chondrocytes (for review see references 1, 2). During endochondral ossification, chondrocyte hypertrophy is critical, because cells alter the extracellular matrix and induce vascular invasion. Extrinsic factors such as bone morphogenetic proteins, Indian hedgehog, and modulators such as Sox9, Runx2, Smads, and histone deacetylase 4 are reportedly essential for chondrogenesis (1, 2). Loss of histone deacetylase 4 causes early onset of hypertrophy, followed by growth retardation (6). Overexpression of Runx2 under the control of a type II collagen promoter/enhancer induces dwarfism because of precocious endochondral ossification and accelerated chondrocyte differentiation (4, 5). Thus, regulation of ...
7.1. Insulin-like growth factors (IGF-I & IGF-II). Of the growth factors, those with the most potent effects on growing skeletal tissue are the IGFs, previously known as somatomedins. IGFs are synthesised in the liver and circulate bound to carrier proteins (Froesch et al., 1985). The major factors regulating IGF concentrations in serum are growth hormone, nutritional intake and thyroid hormones, the latter being necessary for growth hormone secretion. The traditional view was that growth hormone acted indirectly on the growth plate via IGF-I, a potent mitogen for growth plate chondrocytes. However, there is increasing evidence that growth hormone has direct effects on the growth plate (Tripper et al., 1989). (This close relationship between circulating IGFs and growth hormone will be discussed in more detail in the chapter covering the hormonal regulation of growth.). In addition to having effects on the growth plate chondrocytes, locally synthesised and circulating IGFs retained in bone matrix ...
J:152912 Matsumoto K, Li Y, Jakuba C, Sugiyama Y, Sayo T, Okuno M, Dealy CN, Toole BP, Takeda J, Yamaguchi Y, Kosher RA, Conditional inactivation of Has2 reveals a crucial role for hyaluronan in skeletal growth, patterning, chondrocyte maturation and joint formation in the developing limb. Development. 2009 Aug;136(16):2825-35 ...
Herein, we review the regulation of differentiation of the growth plate chondrocytes by G-proteins. In connection with this, we summarize the current knowledge regarding each family of G-protein α subunit, specifically, Gα(s), Gα(q/11), Gα(12/13), and Gα(i/o). We discuss different mechanisms involved in chondrocyte differentiation downstream of G-proteins and different G-protein-coupled receptors (GPCRs) activating G-proteins in the epiphyseal chondrocytes. We conclude that among all G-proteins and GPCRs expressed by chondrocytes, Gα(s) has the most important role and prevents premature chondrocyte differentiation. Receptor for parathyroid hormone (PTHR1) appears to be the major activator of Gα(s) in chondrocytes and ablation of either one leads to accelerated chondrocyte differentiation, premature fusion of the postnatal growth plate, and ultimately short stature.
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Chondrocyte Medium-phenol red free https://www.sciencepro.com.br/produtos/sc-4651-prf https://www.sciencepro.com.br/@@site-logo/logo-novo.png ...
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800x600◎教育情况:1989年12月-1992年5月为日本名古屋大学医学部研究生1993年11月-1998年10月为日本岐阜大学博士研究生1998年11月-1999年3月为日本岐阜大学医学部研究学者◎工作经历:1999年4月-至今中山大学肿瘤防治中心麻醉科工作 ◎省级以上学术团体及国家级专业杂志任...
800x600◎教育情况:1989年12月-1992年5月为日本名古屋大学医学部研究生1993年11月-1998年10月为日本岐阜大学博士研究生1998年11月-1999年3月为日本岐阜大学医学部研究学者◎工作经历:1999年4月-至今中山大学肿瘤防治中心麻醉科工作 ◎省级以上学术团体及国家级专业杂志任...
简历 & 研究组工作摘要 1955年 毕业于中山大学化学系。. 1960年 苏联科学院元素有机化合物研究所研究生毕业,获副博士学位。. 1965-1967 在英国皇家研究所及牛津大学访问学者。. 1980年选为中国科学院学部委员, 1985年选为第三世界科学院院士。. 现任中国科学院生物物理所研究员。博士生导师。曾任中国科学院生物物理所所长(1983-1986), 国家自然科学基金委员会副主任(1986-1995)。. 主要从事蛋白质晶体学和结构生物学。己发表自然科学论文140余篇,专著《X射线晶体学基础》等。研究成果分别获1982年国家自然科学二等奖、1989年国家自然科学二等奖、1987年中国科学院自然科学一等奖及1986年、1992年中国科学院自然科学二等奖。1992年获首届王丹萍科学奖金,1995年获何梁何利科学与技术进步奖。2004年获北京市科学技术奖一等奖。 ...
東京歯科大学水道橋病院における最近6年間の口腔外科全身麻酔手術症例の臨床的検討東京歯科大学水道橋病院における最近6年間の口腔外科全身麻酔手術症例の臨床的検討AN0009999X ...
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The CRELD1 gene currently has no well-established disease association; however, there is preliminary evidence supporting a correlation with autosomal dominant atrioventricular septal defects (PMID: 15857420, 21080147).
Human embryonic stem cells (hESCs) have the potential to offer a virtually unlimited source of chondrogenic cells for use in cartilage repair and regeneration. We have recently shown that expandable chondrogenic cells can be derived from hESCs under selective growth factor-responsive conditions. In this study, we explore the potential of these hESC-derived chondrogenic cells to produce an extracellular matrix (ECM)-enriched cartilaginous tissue construct when cultured in hyaluronic acid (HA)-based hydrogel, and further investigated the long-term reparative ability of the resulting hESC-derived chondrogenic cell-engineered cartilage (HCCEC) in an osteochondral defect model. We hypothesized that HCCEC can provide a functional template capable of undergoing orderly remodeling during the repair of critical-sized osteochondral defects (1.5 mm in diameter, 1 mm depth into the subchondral bone) in a rat model. In the process of repair, we observed an orderly spatial-temporal remodeling of HCCEC over 12 ...
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Cartilage-hair hypoplasia (CHH) or McKusick type metaphyseal chondrodysplasia is a rare form of dwarfism. It is inherited in an autosomal recessive manner (see the genetics section for further details). This form of dwarfism was first described in the Old Order Amish in the United States. In the Amish, the incidence of CHH is 1.5 in 1,000births. CHH is also found in Finland at a high frequency, approximately1 in 23,000 births. CHH is characterized by short limb short stature, fine, sparse hair, impaired immunity, and anemia. At birth, weight is normal but length is decreased. Individuals with CHH have a long trunk in relation to short limbs. All segments of the limbs are shortened (i.e. the upper arm, forearm, and hands are shortened, in contrast to achondroplasia where only the upper parts of the limbs are shortened). Adult height ranges from 103cm to 149cm(median adult female height is 123 cm and median adult male height is 131cm).
Investigators at Burnham Institute for Medical Research and the University of Connecticut Health Center have gained new understanding of the role hyaluronic acid plays in skeletal growth, chondrocyte maturation and joint formation in developing limbs.
List of words make out of Chondrogenesis. All anagrams of Chondrogenesis. Words made after unscrambling Chondrogenesis. Scrabble Points. Puzzle Solver. Word Creation.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Collagen,_type_XX,_alpha_1&oldid=705418915" ...
Type III collagen. liver, bone marrow, and lymphatic organs USES[edit]. Connective tissue has a wide variety of functions that ... Type I collagen is present in many forms of connective tissue, and makes up about 25% of the total protein content of the ... Type I Collagen". Journal of Biological Chemistry. 277 (6): 4223-31. doi:10.1074/jbc.M110709200. PMID 11704682.. ... Types of fibers: Tissue. Purpose. Components. Location Collagenous fibers. Bind bones and other tissues to each other. Alpha ...
COL1A1: collagen, type I, alpha 1 (17q21.33). *LUC7L3: LUC7 like 3 pre-mRNA splicing factor (17q21.33) ... This type of ideogram is generally used in genome browsers (e.g. Ensembl, UCSC Genome Browser). ... This type of ideogram represents actual relative band length observed under a microscope at the different moments during the ...
The menisci contain 70% type I collagen.[6] The larger semilunar medial meniscus is attached more firmly than the loosely fixed ... In 1978, Shrive et al. reported that the collagen fibers of the menisci are oriented in a circumferential pattern.[6] When a ... This type of rehabilitation focuses on maintenance of full range of motion and functional progression without aggravating the ... Torg J, Quesdenfeld T (1971). "Effect of shoe type and cleat length on incidence and severity of knee injuries among high ...
... and type III collagen is largely replaced by type I. Collagen which was originally disorganized is cross-linked and aligned ... They begin to produce the much stronger type I collagen. Some of the fibroblasts mature into myofibroblasts which contain the ... Fibroblasts quickly produce abundant type III collagen, which fills the defect left by an open wound. Granulation tissue moves ... In order for an injury to be healed by regeneration, the cell type that was destroyed must be able to replicate. Cells also ...
Type II Collagen is an example of homo-trimeric protein. Porins usually arrange themselves in membranes as trimers. ...
COL17A1 is collagen. Specifically type XVII, alpha 1. This may play a role in overall protein structure. PRDM16 binds to DNA ... This type of conclusion will require further information. Not enough consensus exists as to where in the body SMIM23 is ... The closest relatives to humans with the SMIM23 gene were in primates so two types of monkeys were picked which diverged around ... The same kind of investigation of protein localization in other types of species returned conflicting results. Many programs ...
COL7A1: Collagen, type VII, alpha 1 (epidermolysis bullosa, dystrophic, dominant and recessive) ... This type of ideogram is generally used in genome browsers (e.g. Ensembl, UCSC Genome Browser). ... FRA3A encoding protein Fragile site, aphidicolin type, common, fra(3)(p24.2). *FRMD4B encoding protein FERM domain containing ... ZBED2: encoding protein Zinc finger BED-type containing 2. *ZNF9: zinc finger protein 9 (a cellular retroviral nucleic acid ...
Type I collagen is present in many forms of connective tissue, and makes up about 25% of the total protein content of the ... Type I Collagen". Journal of Biological Chemistry. 277 (6): 4223-31. doi:10.1074/jbc.M110709200. PMID 11704682.. ... TypesEdit. Connective tissue can be broadly subdivided into connective tissue proper, and special connective tissue.[5][6] ... groups of adipose cells are kept together by collagen fibers and collagen sheets in order to keep fat tissue under compression ...
Horton, WA, Campbell, D, Machado, MA & Chou, J; Campbell; Machado; Chou (1989). "Type II collagen screening in the human ... Gajko-Galicka, A (2002). "Mutations in type I collagen genes resulting in osteogenesis imperfecta in humans". Acta biochimica ... "Ehlers-Danlos syndrome and type III collagen abnormalities: a variable clinical spectrum". Clinical Genetics 53 (6): 440-446. ... Type 2: brusk (hovedkomponent). Sykdommer[rediger , rediger kilde]. Ett tusen mutasjoner er blitt identifisert i tolv av mer ...
The molecular basis for thin basement membrane disease has yet to be elucidated fully; however, defects in type IV collagen ... defects in the gene encoding the a4 chain of type IV collagen have been reported in some families. Overall, most people with ... GeneReviews/NCBI/NIH/UW entry on Collagen IV-Related Nephropathies (Alport Syndrome and Thin Basement Membrane Nephropathy). ...
... within the human COL7A1 gene encoding the protein type VII collagen (collagen VII).[11] DEB-causing mutations can be either ... Type VII collagen mutations and phenotype-genotype correlations in the dystrophic subtypes". Journal of Medical Genetics. 44 (3 ... There are 54 known keratin genes-of which 28 belong to the type I intermediate filament genes and 26 to type II-which work as ... Over 300 mutations have been identified in this condition.[7] They have been classified into the following types:[8][9]:596 ...
Leitinger B, Kwan AP (2006). "The discoidin domain receptor DDR2 is a receptor for type X collagen". Matrix Biol. 25 (6): 355- ... protein tyrosine kinase collagen receptor activity. • protein tyrosine kinase activity. • ATP binding. • collagen binding. ... collagen-activated tyrosine kinase receptor signaling pathway. • ossification. • phosphorylation. • collagen fibril ... "Discoidin domain receptor 2 interacts with Src and Shc following its activation by type I collagen". J. Biol. Chem. 277 (21): ...
2007, (Type species of the genus).;: Greek noun amulon, starch; New Latin adjective lyticus -a -um (from Greek adjective ... 2007, ; New Latin noun collagenum, collagen; Latin adjective marinus -a -um, of the sea, marine; New Latin feminine gender ... the source of the type strain), Kenya.) Bacterial taxonomy Microbiology Classification of Genera AC entry in LPSN [Euzéby, J.P ...
The COL11A2 gene is responsible for providing instructions on making one component of the type XI collagen. Type XI collagen is ... which codes for the α2 strand of collagen type XI. It is a collagenopathy, types II and XI disorder. It causes facial ... The mutation of COL11A2 in Weissenbacher-Zweymüller syndrome disrupts the assembly of the type XI collagen molecules. The ... Collagen is found in bone. It is also found in cartilage that makes up most of the skeleton during early development. ...
Svensson L, Närlid I, Oldberg A (Mar 2000). "Fibromodulin and lumican bind to the same region on collagen type I fibrils". FEBS ... This enables it bind to collagen molecules within a collagen fibril, thus helping keep adjacent fibrils apart.[9] ... fibrillar collagen trimer. • lysosomal lumen. • Golgi lumen. • extracellular exosome. • extracellular space. • extracellular ... collagen binding. • extracellular matrix structural constituent. • protein binding. Cellular component. • extracellular matrix ...
Abnormally shaped ends of one or more bones at a joint A Type 1 collagen or other connective tissue defect (as found in Ehlers- ... For example: Typing can reduce pain from writing. Voice control software or a more ergonomic keyboard can reduce pain from ... Female sex hormones alter collagen proteins. Women are generally more supple just before a period and even more so in the ... The dermatosparaxis and kyphoscoliosis types of EDS and some cases of the classic and hypermobility forms, are inherited in an ...
COL11A1: collagen, type XI, alpha 1. *CPT2: carnitine palmitoyltransferase II. *CRYZ: Crystallin zeta ... This type of ideogram is generally used in genome browsers (e.g. Ensembl, UCSC Genome Browser). ... FRA1J encoding protein Fragile site, 5-azacytidine type, common, fra(1)(q12) ... This type of ideogram represents actual relative band length observed under a microscope at the different moments during the ...
Collagen, type XXIV, alpha 1 is a protein that in humans is encoded by the COL24A1 gene. Model organisms have been used in the ... Collagen, type XXIV, alpha 1". Gerdin AK (2010). "The Sanger Mouse Genetics Programme: high throughput characterisation of ...
There are multiple types of collagen: Type I (comprising skin, tendons and ligaments, vasculature and organs, as well as teeth ... Several types of protein based, nanosized fibers are being used in nanocomposites. These include collagen, cellulose, chitin ... and bone); Type II (a component in cartilage); Type III (often found in reticular fibers); and others. Collagen has a ... Additionally secondary processing of collagen sources to obtain sufficient purity collagen micro fibrils adds a degree of cost ...
Among the many types of collagens, only the fibrillar and the basement membrane (type IV) collagens have been found in the ... Type II and type XI collagens compose the fibrils present in cartilage. These can be distinguished from collagens located in ... coding for collagen type IV which is a diagnostic feature of the basal lamina It has also been found that 29 types of collagen ... Different types of collagen have been found in all multicellular organisms, including sponges. It has been found that sponges ...
Bornstein P, Kyriakides TR, Yang Z, Armstrong LC, Birk DE (Dec 2000). "Thrombospondin 2 modulates collagen fibrillogenesis and ... "Entrez Gene: THBS2 thrombospondin 2". Bein K, Simons M (Oct 2000). "Thrombospondin type 1 repeats interact with matrix ... Bein K, Simons M (Oct 2000). "Thrombospondin type 1 repeats interact with matrix metalloproteinase 2. Regulation of ... "Mice that lack thrombospondin 2 display connective tissue abnormalities that are associated with disordered collagen ...
Type VIII, X) Basement membrane (Type IV) Other (Type VI, VII, XIII) Elastins, in contrast to collagens, give elasticity to ... Each type of connective tissue in animals has a type of ECM: collagen fibers and bone mineral comprise the ECM of bone tissue; ... The collagen can be divided into several families according to the types of structure they form: Fibrillar (Type I, II, III, V ... Kern B, Shen J, Starbuck M, Karsenty G (2001). "Cbfa1 contributes to the osteoblast-specific expression of type I collagen ...
The menisci contain 70% type I collagen. The larger semilunar medial meniscus is attached more firmly than the loosely fixed, ... reported that the collagen fibers of the menisci are oriented in a circumferential pattern. When a compressive force is applied ... This type of rehabilitation focuses on maintenance of full range of motion and functional progression without aggravating the ... Degenerative meniscal tears are thought to occur as part of the aging process when the collagen fibers within the meniscus ...
These mice have greater susceptibility to an asthma-like phenotype than wild-type animals. They are resistant to collagen- ... Two years is a common life expectancy in wild-type house mice. FVB mice show above average activity and anxiety. Because of ...
It has been reported that biglycan interacts more strongly with collagen type II than collagen type I. Biglycan has been ... Pogány G, Hernandez DJ, Vogel KG (August 1994). "The in vitro interaction of proteoglycans with type I collagen is modulated by ... "Binding of the proteoglycan decorin to collagen type VI". J. Biol. Chem. 267 (8): 5250-6. PMID 1544908. Bowe MA, Mendis DB, ... "Interaction of biglycan with type I collagen". J. Biol. Chem. 270 (6): 2776-83. doi:10.1074/jbc.270.6.2776. PMID 7852349. ...
Several types of catenins work with N-cadherins to play an important role in learning and memory (For full article, see ... Spivey KA, Chung I, Banyard J, Adini I, Feldman HA, Zetter BR (October 2011). "A role for collagen XXIII in cancer cell ... For instance, higher levels of collagen XXIII have been associated with higher levels of catenins in cells. These heightened ... levels of collagen helped facilitate adhesions and anchorage-independent cell growth and provided evidence of collagen XXIII's ...
... s can also be classified functionally according to the type and degree of movement they allow:[1][9] Joint movements are ... fibrous joint - joined by dense regular connective tissue that is rich in collagen fibers [6] ... There are two types: primary cartilaginous joints composed of hyaline cartilage, and secondary cartilaginous joints composed of ... Types of joints based upon their structure (L to R): Cartilaginous joint, Fibrous joint, and Synovial joint. ...
Collagen IV (ColIV or Col4) is a type of collagen found primarily in the basal lamina. The collagen IV C4 domain at the C- ... Collagen IV is the more common usage, as opposed to the older terminology of "type-IV collagen".[citation needed] Collagen IV ... type IV collagen excretion reflects renal morphological alterations and type IV collagen expression in patients with type 2 ... Type III Procollagen, Type IV Collagen, Laminin, Tissue Inhibitor of Metalloproteinase, or Prolyl Hydroxylase?". Alcoholism: ...
This gene encodes the alpha chain of type VII collagen. The type VII collagen fibril, composed of three identical alpha ... Collagen, type VII, alpha 1 has been shown to interact with Laminin 5 and Fibronectin. Collagen GRCh38: Ensembl release 89: ... of type VII collagen is amino-terminal and chimeric. Homology to cartilage matrix protein, the type III domains of fibronectin ... "Cleavage of type VII collagen by interstitial collagenase and type IV collagenase (gelatinase) derived from human skin". The ...
Collagen type VI myopathies.. Bushby KM1, Collins J, Hicks D.. Author information. 1. Institute of Genetic Medicine, Newcastle ... Mutations in each of the three collagen VI genes COL6A1, COL6A2 and COL6A3 cause two main types of muscle disorders: Ullrich ... Publication type, MeSH terms, Substances, Supplementary concepts, Grant support. Publication type. *Review ... Collagen VI is an important component of the extracellular matrix which forms a microfibrillar network that is found in close ...
I report a series of studies targeted at elucidating mechanisms of proteostasis for collagen type-1, the most abundant collagen ... Misfolding collagen variants cause disease, including osteogenesis imperfecta in the case of collagen-I variants. The origins ... Despite decades of work, however, the mechanisms of collagen folding remain poorly understood, and collagen quality control is ... The folding, quality control, and secretion of collagen presents a significant challenge to collagen-producing cells. Each ...
About 47% of these are collagen, 18% are anti-aging, and 12% are animal extract. A wide variety of collagen type ii options are ... chicken collagen type ii amino collagen c collagen granule firm up collagen cartilage collagen us collagen softgel oem collagen ... Raw material hydrolyzed collagen type 2 cas 9064-67-9 fish collagen powder type II hydrolyzed collagen type II powder ... Tags: Undenatured Collagen Type Ii , Undenatured Collagen Type 2 , Collagen Type 2 Undenatured ...
Healthy Origins, Natural, UC-II with Undenatured Type II Collagen, 40 mg, 120 Veggie Caps. 6 ... Now Foods, UC-II Joint Health, Undenatured Type II Collagen, 120 Veg Capsules. 86 ... Healthy Origins, Natural, UC-II with Undenatured Type II Collagen, 40 mg, 60 Veggie Caps. 3 ... Life Extension, Bio-Collagen with Patented UC-II, 40 mg, 60 Small Caps. 20 ...
Collagen types I, II, III, V and XI self-assemble into D-periodic cross-striated fibrils. Here the D is approximately 67 nm and ... These form the most abundant collagens in vertebrates. ... There are 29 genetically distinct collagens present in animal ... Type V collagen and type XI collagen are minor components of tissue and occur as fibrils with type I and type II collagen ... These form the most abundant collagens in vertebrates.. Collagen types I - V. *Type I collagen is found throughout the body ...
Collagens constitute nearly 30% of all proteins in our body (1). Among the 29 collagen types, type IV collagen is a major and ... collagen types I, II, and III) and networks (collagen types IV and VI) (1). Proper posttranslational modifications of collagen ... C and D) Presence of type IV collagen in both P3H2-null and control embryos at E6 (green) is shown. colIV, type IV collagen. (E ... Type I collagen used for SPR experiments was extracted from mouse skin as previously described (6). Type IV collagen extracted ...
... dginn at olivet.edu dginn at olivet.edu Sun Jun 9 23:37:26 EST 1996 *Previous message: ... Greetings, I am looking for a plasmid probe with a cDNA sequence for Rat Type I collagen gene [alpha1(I) and/or alpha2(I)]. ... Previous message: Rat Type I collagen cDNA probe needed *Next message: Rat Type I collagen cDNA probe needed ...
alpha-1(IX) collagen chain. cartilage-specific short collagen. collagen IX, alpha-1 polypeptide. collagen, type IX, alpha 1. ... Type IX collagen is usually found in tissues containing type II collagen, a fibrillar collagen. Studies in knockout mice have ... COL9A1 collagen type IX alpha 1 chain [Homo sapiens] COL9A1 collagen type IX alpha 1 chain [Homo sapiens]. Gene ID:1297 ... Type IX collagen interacts with fibronectin providing an important molecular bridge in articular cartilage Title: Type IX ...
... mainly type II collagen), the outer elastin layer (OEL), and a layer of type I collagen fiber bundles (cI). In the col1a2−/− ... into the type I collagen triple helix. However, to obtain a full understanding of zebrafish type I collagen, the exact trimer ... Zebrafish type I collagen mutants faithfully recapitulate human type I collagenopathies. Charlotte Gistelinck, Ronald Y. Kwon, ... Zebrafish type I collagen mutants faithfully recapitulate human type I collagenopathies. Charlotte Gistelinck, Ronald Y. Kwon, ...
The excess accumulation of type I collagen within tissues leads to organ dysfunction and occurs as a result of an imbalance ... The excess accumulation of type I collagen within tissues leads to organ dysfunction and occurs as a result of an imbalance ... This chapter outlines several methods to assess the in vitro production of type I collagen that are employed in our laboratory ... Type I collagen Western immunoblot real-time PCR nuclear run-on assay ...
b-2Cool®​ is a natural ingredient supplying native (undenatured) type II collagen, whose efficacy in joint health improvement ... Discover b-2Cool, Bioibericas native type II collagen. Published 07-Nov-2017. ... is able to modulate the immune response against endogenous type II collagen in the cartilage. ...
COL18A1, KNO, KNO1, KS, Collagen, type XVIII, alpha 1, collagen type XVIII alpha 1, collagen type XVIII alpha 1 chain. ... This gene encodes the alpha chain of type XVIII collagen. This collagen is one of the multiplexins, extracellular matrix ... 2002). "Epitope-defined monoclonal antibodies against multiplexin collagens demonstrate that type XV and XVIII collagens are ... "Cloning of cDNA and genomic DNA encoding human type XVIII collagen and localization of the alpha 1(XVIII) collagen gene to ...
Collagen Type 4-related Nephropathies: From Alport to Thin Membrane Nephropathy. A Series of Cases Treated With Angiotensin ... Patients with Collagen type 4 nephropathies and proteinuria followed in Pediatric Nephrology Unit of Instituto da Criança - ... Background: Collagen IV-related nephropathies can lead to End Stage Renal Disease. Experimental studies have shown renin ... Methods: This is a retrospective study of patients with Collagen IV-related nephropathies and proteinuria treated with ...
Compare collagen type XXIV alpha 1 Biomolecules from leading suppliers on Biocompare. View specifications, prices, citations, ... Your search returned 1 collagen type XXIV alpha 1 Biomolecules across 1 supplier. ... Strong, native & highly biocompatible - introducing next generation collagen fibers for the development of novel therapies in ...
Compare collagen type XXV alpha 1 Biomolecules from leading suppliers on Biocompare. View specifications, prices, citations, ... Transient overexpression lysate of collagen, type XXV, alpha 1 (COL25A1), transcript variant 1 ... Your search returned 5 collagen type XXV alpha 1 Biomolecules across 3 suppliers. ... Strong, native & highly biocompatible - introducing next generation collagen fibers for the development of novel therapies in ...
... when adherent to type V collagen. Yet, staurosporine induced Akt and Erk activation on H295R cells: the adhesion on type V ... Adrenocortical cancer Type V collagen Apoptosis Staurosporine This is a preview of subscription content, log in to check access ... Luparello C, David F, Campisi G, Sirchia R. T47-D cells and type V collagen: a model for the study of apoptotic gene expression ... Luparello C, Sirchia R, Longo A. Type V collagen and protein kinase Cη down-regulation in 8701-BC breast cancer cells. Mol ...
II collagen and weakly reacts with bovine type-II collagen. Does not react with mouse collagen type I, rat type-I or type-III ... Collagen Type II Detection. Collagen Type II is a major constituent of hyaline and elastic cartilage protein. Collagen Type II ... Weakly reacts with bovine type-II collagen. Does not cross‑react with rat type‑I & type-III collagen or with mouse type-II ... The Rat Collagen Type 2 Monoclonal Antibody specifically recognizes rat type-II collagen. It is validated for immunoblotting ...
The purified mass is dried to provide the desired Type I collagen product which may be ground into a powder or formed into a ... The enzyme-treated comminuted material which is rich in collagen is dispersed in an organic acid to cause the fibrillar mass to ... source such as poultry feet that incorporates a fibrillar mass of connective tissue as well as bony tissue to yield a collagen ... collagen matrix or sponge, depending on the end use therefor. ... A process for extracting type I collagen from an avian ...
Enhanced cleavage of type II collagen by collagenases in osteoarthritic articular cartilage.. ... We demonstrate the direct involvement of increased collagenase activity in the cleavage of type II collagen in osteoarthritic ... involved in the cleavage and denaturation of type II collagen in articular cartilage, that this is increased in OA, and that ... neoepitopes generated by cleavage of native human type II collagen by collagenase matrix metalloproteinase (MMP)-1 (collagenase ...
BioCell Collagen has clinically documented bioavailability, and has been shown to support joint health and skin hydration.* For ... Jarrow Formulas Type ll Collagen Complex providesBioCell Collagen, a low molecular weight, water-soluble glycosaminoglycan ... What Does Type II Collagen Complex Do? Jarrow Formulas® Type ll Collagen Complex provides BioCell Collagen®, a low molecular ... Made with BioCell Collagen®. BioCell Collagen® is a registered trademark of BioCell Technology, LLC, Newport Beach, CA and is ...
Suppression of type II collagen-induced arthritis by intragastric administration of soluble type II collagen. Proc Natl Acad ... containing 10 mg bioactive undenatured type II collagen).. In addition to the bioactive UC·II undenatured type II collagen, ... Most of the type II chicken collagen found in dietary supplements is denatured or hydrolized, which means that high heat and/or ... Undenatured type II collagen is made using little or no heat and very limited processing - just enough to concentrate the ...
1CTP stands for Carboxy-Terminal Telopeptide of Type 1 Collagen. 1CTP is defined as Carboxy-Terminal Telopeptide of Type 1 ... How is Carboxy-Terminal Telopeptide of Type 1 Collagen abbreviated? ... Terminal-Telopeptide-of-Type-1-Collagen-(1CTP).html,1CTP,/a,. ... 1CTP stands for Carboxy-Terminal Telopeptide of Type 1 Collagen ... S.v. "1CTP." Retrieved September 20 2018 from https://www.acronymfinder.com/Carboxy_Terminal-Telopeptide-of-Type-1-Collagen-( ...
Type I collagen Collagen, type III, alpha 1 Park, Kyung-Su; Park, Min-Jung; Cho, Mi-La; Kwok, Seung-Ki; Ju, Ji Hyeon; Ko, Hyeok ... Type II collagen does form fibrils. This fibrillar network of collagen allows cartilage to entrap the proteoglycan aggregate as ... "Type II collagen oral tolerance; mechanism and role in collagen-induced arthritis and rheumatoid arthritis". Modern ... Type II collagen is the basis for articular cartilage and hyaline cartilage. It makes up 50% of all protein in cartilage and 85 ...
  • Mutations in this gene are associated with type III Stickler syndrome, otospondylomegaepiphyseal dysplasia (OSMED syndrome), Weissenbacher-Zweymuller syndrome, autosomal dominant non-syndromic sensorineural type 13 deafness (DFNA13), and autosomal recessive non-syndromic sensorineural type 53 deafness (DFNB53). (acris-antibodies.com)
  • Importantly, it has been reported that patients who were previously sensitized by type V collagen and positive for type V collagen-DTH reactions tend to develop idiopathic pulmonary fibrosis (58.8%, 10/17) compared to patients who were negative for the DTH reaction (15.8%, 6/38) (Bobadilla JL, Love RB, Jankowska-Gan E, Xu Q, et al. (chondrex.com)
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