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Adhesion of cerebral endothelial cells to lymphocytes from patients with multiple sclerosis



Adhesion of cerebral endothelial cells to lymphocytes from patients with multiple sclerosis



Autoimmunity 14(4): 329-333



To investigate the factors regulating the entry of lymphocytes into the brain, we assessed the adhesion in vitro of 51Cr labelled lymphocytes from peripheral blood of patients with multiple sclerosis (MS) to human cerebral endothelial cells, and evaluated the effect on the adhesion of endothelium activated by interferon-gamma (IFN-gamma), lipopolysaccharides (LPS), interleukin-1 (IL-1) and tumor necrosis factor (TNF). Patients with acute relapsing MS during an exacerbation showed significant increase in MNC adherence to cerebral endothelial cells as compared with controls (p < 0.001). MNC adherence to cerebral endothelial cells activated by IFN-gamma or LPS, was significantly increased as compared to the controls (p < 0.01). MNC adherence to endothelial cells was not blocked by antibodies against the intercellular adhesion molecule-1 (ICAM-1), but was blocked by lymphocyte function-associated antigen-1 (LFA-1). The increased adherence observed in patients with acute relapsing MS during an exacerbation would modulate the migration of lymphocytes across the blood-brain barrier (BBB).

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Accession: 045174923

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PMID: 8347775


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