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. 1974 Apr;71(4):1207–1210. doi: 10.1073/pnas.71.4.1207

A Platelet-Dependent Serum Factor That Stimulates the Proliferation of Arterial Smooth Muscle Cells In Vitro

Russell Ross *, John Glomset †, Beverly Kariya *, Laurence Harker ‡
PMCID: PMC388193  PMID: 4208546

Abstract

Dialyzed serum from clotted monkey blood (“blood serum”) promotes the proliferation of monkey arterial smooth muscle cells in culture, but dialyzed serum prepared from recalcified platelet-poor plasma (“plasma serum”) is much less effective. Addition of platelets and calcium to platelet-poor plasma increases the activity of plasma serum to the same level achieved with blood serum. Furthermore, addition to plasma serum of a platelet-free supernatant prepared by exposing purified platelets to thrombin also stimulates the proliferation of smooth muscle cells. Thus, much of the growth-promoting activity of dialyzed serum is directly or indirectly derived from platelets. This finding has important implications for the response of arteries to localized injury and provides a key to further understanding of the role of factors derived from blood serum in promoting cell proliferation in vitro.

Keywords: primate, cell culture, atherosclerosis

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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