Spatiotemporal protein distribution of TGF-betas, their receptors, and extracellular matrix molecules during embryonic tendon development. 2008

Catherine K Kuo, and Bryan C Petersen, and Rocky S Tuan
Cartilage Biology and Orthopaedics Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland 20892-8022, USA.

Tendon is one of the least understood tissues of the musculoskeletal system in terms of development and morphogenesis. Collagen fibrillogenesis has been the most studied aspect of tendon development, focusing largely on the role of matrix molecules such as collagen type III and decorin. While involvement of matrix molecules in collagen fibrillogenesis during chick tendon development is well understood, the role of growth factors has yet to be elucidated. This work examines the expression patterns of transforming growth factor (TGF) -beta1, -beta2, and -beta3, and their receptors with respect to expression patterns of collagen type III, decorin, and fibronectin. We focus on the intermediate stages of tendon development in the chick embryo, a period during which the tendon micro- and macro-architecture are being established. Our findings demonstrate for the first time that TGF-beta1, -beta2, and -beta3 have distinct spatiotemporal developmental protein localization patterns in the developing tendon and strongly suggest that these isoforms have independent roles in tendon development.

UI MeSH Term Description Entries
D009024 Morphogenesis The development of anatomical structures to create the form of a single- or multi-cell organism. Morphogenesis provides form changes of a part, parts, or the whole organism.
D011509 Proteoglycans Glycoproteins which have a very high polysaccharide content. Proteoglycan,Proteoglycan Type H
D002642 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. Embryo, Chick,Chick Embryos,Embryos, Chick
D005109 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. Matrix, Extracellular,Extracellular Matrices,Matrices, Extracellular
D005353 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. Cold-Insoluble Globulins,LETS Proteins,Fibronectin,Opsonic Glycoprotein,Opsonic alpha(2)SB Glycoprotein,alpha 2-Surface Binding Glycoprotein,Cold Insoluble Globulins,Globulins, Cold-Insoluble,Glycoprotein, Opsonic,Proteins, LETS,alpha 2 Surface Binding Glycoprotein
D000077293 Receptor, Transforming Growth Factor-beta Type I A transmembrane serine-threonine kinase that forms a heteromeric complex with TYPE II TGF-BETA RECEPTORS to bind TGF-BETA and regulate a variety of physiological and pathological processes including CELL CYCLE ARREST; CELL PROLIFERATION; CELL DIFFERENTIATION; WOUND HEALING; EXTRACELLULAR MATRIX production, immunosuppression and ONCOGENESIS. Activin Receptor-like Kinase 5,Receptor, TGF-beta Type I,Serine-Threonine-Protein Kinase Receptor R4,TGF-beta RPK,TGF-beta Receptor Protein Kinase,TGF-beta Type I Receptor,TGF-beta Type I Receptors,TGFBR1,TbetaR-I Kinase,Transforming Growth Factor beta Receptor I,Transforming Growth Factor, beta Receptor 1,Type I TGF-beta Receptor,Type I TGF-beta Receptors,Activin Receptor like Kinase 5,Kinase, TbetaR-I,Serine Threonine Protein Kinase Receptor R4,TGF beta Receptor Protein Kinase,TGF beta Type I Receptor,TGF beta Type I Receptors,TbetaR I Kinase,Type I TGF beta Receptor,Type I TGF beta Receptors
D000077294 Receptor, Transforming Growth Factor-beta Type II A transmembrane serine-threonine kinase that forms a heteromeric complex with TYPE I TGF-BETA RECEPTORS when bound to TGF-BETA. This receptor complex regulates a variety of physiological and pathological processes including CELL CYCLE ARREST; CELL PROLIFERATION; CELL DIFFERENTIATION; WOUND HEALING; EXTRACELLULAR MATRIX production, immunosuppression and ONCOGENESIS. TGF-beta Type II Receptor,TGF-beta Type II Receptors,TGFBR2,TbetaR-II Kinase,Transforming Growth Factor-beta Type II Receptor,Transforming Growth Factor-beta Type II Receptors,Type II TGF-beta Receptor,Type II TGF-beta Receptors,Kinase, TbetaR-II,Receptor, Transforming Growth Factor beta Type II,TGF beta Type II Receptor,TGF beta Type II Receptors,TbetaR II Kinase,Transforming Growth Factor beta Type II Receptor,Transforming Growth Factor beta Type II Receptors,Type II TGF beta Receptor,Type II TGF beta Receptors
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013710 Tendons Fibrous bands or cords of CONNECTIVE TISSUE at the ends of SKELETAL MUSCLE FIBERS that serve to attach the MUSCLES to bones and other structures. Endotenon,Epotenon,Tendons, Para-Articular,Tendons, Paraarticular,Endotenons,Epotenons,Para-Articular Tendon,Para-Articular Tendons,Paraarticular Tendon,Paraarticular Tendons,Tendon,Tendon, Para-Articular,Tendon, Paraarticular,Tendons, Para Articular
D015415 Biomarkers Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, ENVIRONMENTAL EXPOSURE and its effects, disease diagnosis; METABOLIC PROCESSES; SUBSTANCE ABUSE; PREGNANCY; cell line development; EPIDEMIOLOGIC STUDIES; etc. Biochemical Markers,Biological Markers,Biomarker,Clinical Markers,Immunologic Markers,Laboratory Markers,Markers, Biochemical,Markers, Biological,Markers, Clinical,Markers, Immunologic,Markers, Laboratory,Markers, Serum,Markers, Surrogate,Markers, Viral,Serum Markers,Surrogate Markers,Viral Markers,Biochemical Marker,Biologic Marker,Biologic Markers,Clinical Marker,Immune Marker,Immune Markers,Immunologic Marker,Laboratory Marker,Marker, Biochemical,Marker, Biological,Marker, Clinical,Marker, Immunologic,Marker, Laboratory,Marker, Serum,Marker, Surrogate,Serum Marker,Surrogate End Point,Surrogate End Points,Surrogate Endpoint,Surrogate Endpoints,Surrogate Marker,Viral Marker,Biological Marker,End Point, Surrogate,End Points, Surrogate,Endpoint, Surrogate,Endpoints, Surrogate,Marker, Biologic,Marker, Immune,Marker, Viral,Markers, Biologic,Markers, Immune

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