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Research Article Free access | 10.1172/JCI115621

Human immunodeficiency virus infection induces both polyclonal and virus-specific B cell activation.

A Shirai, M Cosentino, S F Leitman-Klinman, and D M Klinman

Laboratory of Retrovirus Research, Food and Drug Administration, Bethesda, Maryland 20892.

Find articles by Shirai, A. in: JCI | PubMed | Google Scholar

Laboratory of Retrovirus Research, Food and Drug Administration, Bethesda, Maryland 20892.

Find articles by Cosentino, M. in: JCI | PubMed | Google Scholar

Laboratory of Retrovirus Research, Food and Drug Administration, Bethesda, Maryland 20892.

Find articles by Leitman-Klinman, S. in: JCI | PubMed | Google Scholar

Laboratory of Retrovirus Research, Food and Drug Administration, Bethesda, Maryland 20892.

Find articles by Klinman, D. in: JCI | PubMed | Google Scholar

Published February 1, 1992 - More info

Published in Volume 89, Issue 2 on February 1, 1992
J Clin Invest. 1992;89(2):561–566. https://doi.org/10.1172/JCI115621.
© 1992 The American Society for Clinical Investigation
Published February 1, 1992 - Version history
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Abstract

Peripheral blood lymphocytes (PBL) were obtained from HIV-1-infected patients at different stages of disease. The absolute number of IgM-, IgG-, and IgA-producing lymphocytes per 10(6) PBL was increased 2.8-, 3.4-, and 1.9-fold, respectively, compared with normal controls. 2-17% of IgG-secreting patient cells reacted with the gp160 envelope glycoprotein of HIV-1 (a 737-fold increase over background), while 1-9% reacted with p24 (140-fold over background). In addition to this HIV-specific B cell activation, the number of lymphocytes reactive with nonviral antigens such as DNA, myosin, actin, trinitrophenylated keyhole limpet hemocyanin, and ovalbumin was increased by a mean of 17.9-fold. Evidence suggests that the latter changes reflect an HIV-induced polyclonal B cell activation unrelated to the production of anti-HIV antibodies. For example, the proportion of IgG anti-gp160- and anti-p24-secreting lymphocytes declined in patients with advanced disease, whereas the number of B cells producing antibodies to non-HIV antigens rose. Moreover, CD4 cell count and T4/T8 ratio showed a significant inverse correlation with the degree of polyclonal activation but not with anti-HIV responsiveness. These observations demonstrate that both quantitative and qualitative changes in B cell activation accompany (and may be predictive of) disease progression in HIV-infected individuals.

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