Abstract
THE protein CD43 (also known as sialophorin, leukosialin, large sialoglycoprotein or gp115) is expressed on the surface of T lymphocytes, monocytes, neutrophils, platelets and some B lymphocytes1-6. Expression of CD43 is deficient and/or defective in the X-chromosome-linked immunodeficiency disorder Wiscott-Aldrich syndrome7, suggesting that CD43 might have a role in T-cell activation. We have shown that expression of human CD43 in an HLA-DR-specific murine T-cell hybridoma enhances the antigen-specific response to stimulation by the human lympho-blastoid cell line Daudi, and that Daudi cells bind specifically to purified immobilized CD43 (ref. 8). These data indicate that the specific interaction of CD43 with a ligand on the surface of Daudi cells might contribute to T-cell activation. Here we report evidence that intercellular adhesion molecule-1 (ICAM-1, or CD54), is a ligand for CD43.
Original language | English |
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Pages (from-to) | 233-235 |
Number of pages | 3 |
Journal | Nature |
Volume | 354 |
Issue number | 6350 |
DOIs | |
State | Published - 1991 |
Externally published | Yes |