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Cell. 1989 Dec 22;59(6):1203-11.

Direct expression cloning of vascular cell adhesion molecule 1, a cytokine-induced endothelial protein that binds to lymphocytes.

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Biogen, Inc., Cambridge Center, Massachusetts 02142.


We have cloned a previously undescribed adhesion molecule, VCAM-1, which is induced by cytokines on human endothelial cells and binds lymphocytes. Using a novel method requiring neither monoclonal antibodies nor purified protein, VCAM-1-expressing clones were selected by adhesion to human lymphoid cell lines. VCAM-1 mRNA is present in endothelial cells at 2 hr after treatment with IL-1 or TNF-alpha and is maintained for at least 72 hr; leukocyte binding activity parallels mRNA induction. Cells transfected with VCAM-1 bind the human leukemia lines Jurkat, Ramos, Raji, HL60, and THP1, but not peripheral blood neutrophils. VCAM-1, which belongs to the immunoglobulin gene super-family, may be central to recruitment of mononuclear leukocytes into inflammatory sites in vivo.

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