\θɹˈɒmbəspˌɒndɪnz], \θɹˈɒmbəspˌɒndɪnz], \θ_ɹ_ˈɒ_m_b_ə_s_p_ˌɒ_n_d_ɪ_n_z]\
Definitions of THROMBOSPONDINS
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A family of related, adhesive glycoproteins which are synthesized, secreted, and incorporated into the extracellular matrix of a variety of cells, including alpha granules of platelets following thrombin activation and endothelial cells. They interact with a number of BLOOD COAGULATION FACTORS and anticoagulant factors. Five distinct forms have been identified, thrombospondin 1, -2, -3, -4, and cartilage oligomeric matrix protein (COMP). They are involved in cell adhesion, platelet aggregation, cell proliferation, angiogenesis, tumor metastasis, vascular smooth muscle growth, and tissue repair.
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