| Literature DB >> 7690497 |
L Berberian1, L Goodglick, T J Kipps, J Braun.
Abstract
Infection with human immunodeficiency virus-type 1 (HIV-1) depletes T cells expressing CD4 and B cells expressing immunoglobulin (Ig) VH3 gene products. A subpopulation of normal B cells from non-HIV-infected individuals was shown to bind to HIV gp120 by means of membrane Ig; most of these B cells expressed VH3 family Ig. Serum VH3 IgM from uninfected individuals also avidly bound gp120. Finally, gp120 selectively induced Ig secretion by VH3 B cells, indicating that the binding of gp120 functionally activated these cells. These results indicate that naturally occurring VH3 Ig is a second ligand for gp120 and a candidate superantigen for VH3 B cells.Entities:
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Year: 1993 PMID: 7690497 DOI: 10.1126/science.7690497
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728