Activation-independent binding of human memory T cells to adhesion molecule ELAM-1
Activation-independent binding of human memory T cells to adhesion molecule ELAM-1
复制标题
人类记忆 T 细胞与粘附分子 ELAM-1 的激活独立结合
作者:
Y. Shimizu;S. Shaw;N. Graber;T. V. Gopal;Kevin Morgan;G. Seventer;W. Newman
THE induction of an ensemble of adhesion molecules on endothelial cells by inflammatory cytokines is likely to be crucial to the differential migration of T-lymphocyte subsets into inflammatory sites. Two molecular pathways involving the VLA-4 and LFA-1 integrins are known to mediate T-cell adhesion to activated endothelium1–4. Here we show that a third pathway involving the rapidly inducible endothelial cell-surface adhesion molecule ELAM-1 (refs 5,6) contributes to the binding of resting CD4+ T cells to IL-1 -induced human endothelial cells. All three pathways contribute to the greater adhesion to endothelium of memory T cells than naive T cells. There are two unique features of T-cell adhesion to purified ELAM-1: first, ELAM-1 exclusively mediates adhesion of memory T cells; second, memory T-cell binding to ELAM-1 is independent of acute activation events that regulate integrin-mediated adhesion 7,8. Thus, ELAM-1 may be of primary importance in the initial attachment of memory T cells to inflamed endothelium in vivo and to the preferential migration of memory T cells into tissue and inflammatory sites.
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影响因子:
4.4
作者:
通讯作者:
--
影响因子:
56.9
作者:
BEVILACQUA, MP;STENGELIN, S;SEED, B
通讯作者:
SEED, B
DOI:
--
发表时间:
1987
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Clayberger,C;Krensky,AM;McIntyre,BW;Koller,TD;Parham,P;Brodsky,F;Linn,DJ;Evans,EL
通讯作者:
Evans,EL
影响因子:
56.9
作者:
KISHIMOTO, TK;JUTILA, MA;BUTCHER, EC
通讯作者:
BUTCHER, EC
DOI:
10.1172/jci114668
发表时间:
1990
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
Schwartz,BR;Wayner,EA;Carlos,TM;Ochs,HD;Harlan,JM
通讯作者:
Harlan,JM