PMID- 1319510 OWN - NLM STAT- MEDLINE DCOM- 19920728 LR - 20110727 IS - 0047-1852 (Print) IS - 0047-1852 (Linking) VI - 50 IP - 2 DP - 1992 Feb TI - [Platelet structure and function: immunocytochemical localizations of membrane glycoprotein and alpha-granule protein]. PG - 218-22 AB - The platelet membrane glycoproteins (GPs) are receptors or binding sites for adhesive proteins. GPIb and GPIIb/IIIa complex are major glycoproteins and have important roles, functionally. GPIb plays an essential role in primary hemostasis as receptor for the von Willebrand factor. The GPIIb/IIIa complex acts as the binding site for adhesive proteins on activated platelets and, as such, is essential for platelet aggregation. On the other hand, four adhesive proteins (fibrinogen, fibronectin, thrombospondin and von Willebrand factor), which are present not only in plasma but also in alpha-granules, mediate or modulate the platelet adhesive response. The interaction between these adhesive proteins and platelet membrane GPs are essential for platelet adhesion and aggregation. The present report will focus on the localization of GPIb and GPIIb/IIIa on the platelet surface and that of adhesive proteins in alpha-granules in both resting and activated human platelets. FAU - Suzuki, H AU - Suzuki H AD - Department of Cardiovascular Research, Tokyo Metropolitan Institute of Medical Science. FAU - Yamazaki, H AU - Yamazaki H FAU - Tanoue, K AU - Tanoue K LA - jpn PT - English Abstract PT - Journal Article PL - Japan TA - Nihon Rinsho JT - Nihon rinsho. Japanese journal of clinical medicine JID - 0420546 RN - 0 (Fibronectins) RN - 0 (Platelet Membrane Glycoproteins) RN - 0 (Receptors, Cell Surface) RN - 0 (Thrombospondins) RN - 0 (von Willebrand Factor) RN - 0 (von Willebrand factor receptor) RN - 9001-32-5 (Fibrinogen) SB - IM MH - Blood Platelets/metabolism/*physiology MH - Cytoplasmic Granules/*metabolism MH - Fibrinogen/metabolism MH - Fibronectins/metabolism MH - Humans MH - Immunohistochemistry MH - Platelet Adhesiveness MH - Platelet Aggregation MH - Platelet Membrane Glycoproteins/*metabolism/physiology MH - Receptors, Cell Surface/metabolism MH - Thrombospondins MH - von Willebrand Factor/metabolism EDAT- 1992/02/01 00:00 MHDA- 1992/02/01 00:01 CRDT- 1992/02/01 00:00 PHST- 1992/02/01 00:00 [pubmed] PHST- 1992/02/01 00:01 [medline] PHST- 1992/02/01 00:00 [entrez] PST - ppublish SO - Nihon Rinsho. 1992 Feb;50(2):218-22.