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Major expansion of CD8+ T cells with a predominant Vβ usage during the primary immune response to HIV

Major expansion of CD8+ T cells with a predominant Vβ usage during the primary immune response to... A SIGNIFICANT proportion (up to 70%) of individuals experience an acute clinical syndrome of varying severity associated with primary infection with the human immunodeficiency virus (HIV)1–4. We report here studies on six individuals who showed an acute HIV syndrome which generally resolved within four weeks, concomitant with a dramatic downregulation of viraemia2–5. To characterize the T-cell-mediated primary immune response to HIV, we used combined semiquantitative polymerase chain reaction assay and cytofluorometry to analyse the T-cell antigen receptor repertoire in sequential peripheral blood mononuclear cells from the patients. We found major oligoclonal expansions in a restricted set of variable-domain β-chain (Vβ) families. Cells expressing the expanded Vβs predominantly expressed the CDS T-cell differentiation antigen and mediated HlV-specific cytotoxicity. Major oligoclonal expansions of these CD8+ T lymphocytes may represent an important component of the primary immune response to viral infections and may help to clarify both the immunopathogenic and the protective mechanisms of HIV infection. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nature Springer Journals

Major expansion of CD8+ T cells with a predominant Vβ usage during the primary immune response to HIV

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References (26)

Publisher
Springer Journals
Copyright
Copyright © Springer Nature Limited 1994
Subject
Science, Humanities and Social Sciences, multidisciplinary; Science, Humanities and Social Sciences, multidisciplinary; Science, multidisciplinary
ISSN
0028-0836
eISSN
1476-4687
DOI
10.1038/370463a0
Publisher site
See Article on Publisher Site

Abstract

A SIGNIFICANT proportion (up to 70%) of individuals experience an acute clinical syndrome of varying severity associated with primary infection with the human immunodeficiency virus (HIV)1–4. We report here studies on six individuals who showed an acute HIV syndrome which generally resolved within four weeks, concomitant with a dramatic downregulation of viraemia2–5. To characterize the T-cell-mediated primary immune response to HIV, we used combined semiquantitative polymerase chain reaction assay and cytofluorometry to analyse the T-cell antigen receptor repertoire in sequential peripheral blood mononuclear cells from the patients. We found major oligoclonal expansions in a restricted set of variable-domain β-chain (Vβ) families. Cells expressing the expanded Vβs predominantly expressed the CDS T-cell differentiation antigen and mediated HlV-specific cytotoxicity. Major oligoclonal expansions of these CD8+ T lymphocytes may represent an important component of the primary immune response to viral infections and may help to clarify both the immunopathogenic and the protective mechanisms of HIV infection.

Journal

Nature – Springer Journals

Published: Aug 11, 1994

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