PMID- 8096222 OWN - NLM STAT- MEDLINE DCOM- 19930429 LR - 20190825 IS - 0165-5728 (Print) IS - 0165-5728 (Linking) VI - 43 IP - 1-2 DP - 1993 Mar TI - Cytokine-regulated adhesion between encephalitogenic T lymphocytes and cerebrovascular endothelial cells. PG - 23-30 AB - Adhesive interactions between murine cerebrovascular endothelial cells (EC) which comprise the blood-brain barrier (BBB) and myelin basic protein (MBP)-specific encephalitogenic T lymphocytes were investigated. Adhesion was assessed by measuring the percent attachment of 51Cr-labeled T cells to EC monolayers. The basal level adhesion (20-35%) was significantly up-regulated by treating EC with recombinant murine gamma interferon (IFN-gamma), interleukin-1 alpha (IL-1 alpha) and/or tumor necrosis factor-alpha (TNF alpha). The ability of these cytokines to modulate adhesion was dose- and time-dependent and could be detected as early as 1 h after treatment. The expression of intercellular adhesion molecule-1 (ICAM-1) by EC was examined by immunofluorescence staining and ELISA. Although all unstimulated EC cultures expressed ICAM-1, treatment of EC with the above cytokines dramatically up-regulated the level of ICAM-1 expression in a dose- and time-dependent fashion similar to that observed in the adhesion assays. Treatment of EC with transforming growth factor-beta 1 (TGF beta) down-regulated the level of T cell adhesion on untreated EC in a dose-dependent manner. Pretreatment of EC with TGF beta also partially inhibited the up-regulation of adhesion induced by IFN-gamma, IL-1 alpha and/or TNF alpha. TGF beta had no effect on the up-regulation of ICAM-1 expression induced by IFN-gamma, IL-1 alpha and/or TNF alpha. These results indicate that in addition to ICAM-1, other molecules may be involved in adhesion of encephalitogenic T cells to the EC comprising the cerebral vasculature.(ABSTRACT TRUNCATED AT 250 WORDS) FAU - McCarron, R M AU - McCarron RM AD - Stroke Branch, NINDS, National Institutes of Health, Bethesda, MD 20892. FAU - Wang, L AU - Wang L FAU - Racke, M K AU - Racke MK FAU - McFarlin, D E AU - McFarlin DE FAU - Spatz, M AU - Spatz M LA - eng PT - Journal Article PL - Netherlands TA - J Neuroimmunol JT - Journal of neuroimmunology JID - 8109498 RN - 0 (Cell Adhesion Molecules) RN - 0 (Cytokines) RN - 0 (Transforming Growth Factor beta) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) SB - IM MH - Animals MH - Brain/*blood supply MH - Cell Adhesion/drug effects MH - Cell Adhesion Molecules/analysis/*physiology MH - Cells, Cultured MH - Cytokines/*pharmacology MH - Encephalomyelitis, Autoimmune, Experimental/*etiology/immunology MH - Endothelium, Vascular/cytology/*physiology MH - Female MH - Intercellular Adhesion Molecule-1 MH - Mice MH - T-Lymphocytes/*physiology MH - Transforming Growth Factor beta/pharmacology EDAT- 1993/03/01 00:00 MHDA- 2000/06/01 09:00 CRDT- 1993/03/01 00:00 PHST- 1993/03/01 00:00 [pubmed] PHST- 2000/06/01 09:00 [medline] PHST- 1993/03/01 00:00 [entrez] AID - 0165-5728(93)90071-6 [pii] AID - 10.1016/0165-5728(93)90071-6 [doi] PST - ppublish SO - J Neuroimmunol. 1993 Mar;43(1-2):23-30. doi: 10.1016/0165-5728(93)90071-6.