✦ LIBER ✦

Stimulation of macrophage plasminogen activator activity by colony-stimulating factors

✍ Scribed by J. A. Hamilton; E. R. Stanley; A. W. Burgess; R. K. Shadduck

Publisher: John Wiley and Sons
Year: 1980
Tongue: English
Weight: 895 KB
Volume: 103
Category: Article
ISSN: 0021-9541
DOI: 10.1002/jcp.1041030309

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Colony‐stimulating factors (CSFs) stimulate granulocyte‐macrophage production from single hemopoietic progenitor cells. Various preparations of purified CSFs of two different subclasses have been shown here to stimulate a plasminogen‐dependent fibrinolytic (plasminogen activator) activity from resident and starch‐induced mouse peritoneal macrophages. Lymphocyte supernatants also stimulate macrophage plasminogen activator (PA) activitty. Since they contain colony stimulating activity, it is possible that one or more sublcasses of CSF in these supernatants is responsible for this effect. Since both colony‐stimulating and macrophage growth activities have been detected at inflammatory sites, these findings could reflect a role for CSF in inflammatory processes.

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