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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Essential lymphocyte function associated 1 (LFA-1): intercellular adhesion molecule interactions for T cell- mediated B cell apoptosis by Fas/APO-1/CD95.

B cells are susceptible to Fas ligand (FasL)+ CD4(+) Th1 cell-mediated apoptosis. We demonstrate that blocking the interactions between lymphocyte function associated (LFA)-1 and intercellular adhesion molecule(ICAM)-1 and ICAM-2 completely suppresses Fas-dependent B cell lysis. Antibodies to CD2 and CD48 partially suppress B cell apoptosis, whereas anti-B7.1 and anti-B7.2 antibodies have no effect. Also, B cells from ICAM-1-deficient mice are resistant to FasL+ T cell-mediated death. Our results suggest that LFA-1/ICAM interactions are crucial for Th1 cell-mediated B cell apoptosis and may contribute to the maintenance of B cell homeostasis in vivo.[1]


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