Publication Date:
1987-06-19
Description:
The physiological role of the platelet-secreted protein thrombospondin (TSP) is poorly understood, although it has been postulated to be involved in platelet aggregation and cellular adhesion. In this report, TSP isolated from human platelets was found to promote, in vitro, the cell-substratum adhesion of a variety of cells, including platelets, melanoma cells, muscle cells, endothelial cells, fibroblasts, and epithelial cells. The adhesion-promoting activity of TSP was species independent, specific, and not due to contamination by fibronectin, vitronectin, laminin, or platelet factor 4. The cell surface receptor for TSP is protein in nature and appears distinct from that for fibronectin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tuszynski, G P -- Rothman, V -- Murphy, A -- Siegler, K -- Smith, L -- Smith, S -- Karczewski, J -- Knudsen, K A -- New York, N.Y. -- Science. 1987 Jun 19;236(4808):1570-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2438772" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Antigens, CD36
;
Cattle
;
Cell Adhesion/*drug effects
;
Fibroblasts/drug effects
;
Fibronectins/pharmacology
;
Glycoproteins/*pharmacology
;
Humans
;
Melanoma/metabolism
;
Mice
;
Platelet Aggregation/drug effects
;
Rabbits
;
Rats
;
Receptors, Mitogen/metabolism
;
Swine
;
Thrombospondins
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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