Virus-activated T cells regulate expression of adhesion molecules on endothelial cells in sites of infection.

Abstract:

:To study the role of cell adhesion molecules in the fatal CD8+ T-cell mediated meningitis which is induced by intracerebral infection with lymphocytic choriomeningitis virus, the expression of relevant molecules on inflammatory cells and local endothelium was analyzed immunohistochemically. Most inflammatory cells were strongly positive for LFA-1, VLA-4, Pgp-1 and ICAM-1. Expression of ICAM-1 and VCAM-1 was upregulated on the endothelial cells in immunocompetent mice, but not in T-cell deficient nude mice. Analysis of mice deficient in either CD4+ or CD8+ T cells, revealed that not only was the inflammatory reaction dependent on the presence of CD8+ cells, but these cells also appeared to be required for maximal upregulation of ICAM-1 and VCAM-1 on the endothelial cells. These results indicate that virus-specific CD8+ T cells are crucially involved in regulating the inflammatory reaction through effects on endothelial expression of adhesion molecules.

journal_name

J Neuroimmunol

authors

Marker O,Scheynius A,Christensen JP,Thomsen AR

doi

10.1016/0165-5728(95)00099-n

subject

Has Abstract

pub_date

1995-10-01 00:00:00

pages

35-42

issue

1

eissn

0165-5728

issn

1872-8421

pii

016557289500099N

journal_volume

62

pub_type

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