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Journal of Experimental Medicine, Vol 175, 1789-1792, Copyright © 1992 by Rockefeller University Press
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O Spertini, FW Luscinskas, MA Gimbrone Jr and TF Tedder
Division of Tumor Immunology, Dana-Farber Cancer Institute, Boston, Massachusetts.
The receptors that mediate monocyte adhesion to cytokine-stimulated endothelial monolayers were assessed using a nonstatic (rotating) cell- attachment assay. In this system, leukocyte adhesion molecule-1 (LAM-1) (L-selectin) mediated a major portion (87 +/- 15% at 37 degrees C) of monocyte attachment to activated endothelium. mAb blocking of endothelial leukocyte adhesion molecule-1 (41% inhibition), CD18 (36%), and vascular cell adhesion molecule-1 (25%) function had lesser effects on attachment. These results suggest that LAM-1 may serve an important role in monocyte attachment to endothelium at sites of inflammation.
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