|
||
Journal of Experimental Medicine, Vol 181, 71-77, Copyright © 1995 by Rockefeller University Press
ARTICLES |
MR Alderson, TW Tough, T Davis-Smith, S Braddy, B Falk, KA Schooley, RG Goodwin, CA Smith, F Ramsdell and DH Lynch
Immunex Research and Developmental Corporation, Seattle, Washington 98101.
A significant proportion of previously activated human T cells undergo apoptosis when triggered through the CD3/T cell receptor complex, a process termed activation-induced cell death (AICD). Ligation of Fas on activated T cells by either Fas antibodies or recombinant human Fas- ligand (Fas-L) also results in cytolysis. We demonstrate that these two pathways of apoptosis are causally related. Stimulation of previously activated T cells resulted in the expression of Fas-L mRNA and lysis of Fas-positive target cells. Fas-L antagonists inhibited AICD of T cell clones and staphylococcus enterotoxin B (SEB)-specific T cell lines. The data indicate AICD in previously stimulated T cells is mediated by Fas/Fas-L interactions.
This article has been cited by other articles:
| TABLE OF CONTENTS |
|