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Comparative analysis of CD4-4B4 and CD4-2H4 lymphocyte subpopulations in HIV negative homosexual, HIV seropositive and healthy subjects



Comparative analysis of CD4-4B4 and CD4-2H4 lymphocyte subpopulations in HIV negative homosexual, HIV seropositive and healthy subjects



Clinical and Experimental Immunology 71(1): 8-12



A comparative analysis of subsets (4B4 and 2H4) within the CD4 lymphocyte subpopulation was made by double marker analysis among 23 healthy heterosexual, 16 healthy HIV seronegative high-risk homosexuals and 82 HIV seropositive subjects. Data show that the significant increase in CD4 lymphocytes observed among seronegative homosexuals corresponds mainly to an increase in CD4-4B4 positive cells while CD4-2H4 subset levels remain comparable to healthy heterosexual controls. A decrease both in CD4-4B4 and CD4-2H4, parallel to a decrease in CD4 subpopulation, was observed in asymptomatic seropositive carriers (SPC) and patients with ARC syndrome (AIDS-related complex) or AIDS (acquired immunodeficiency syndrome). Interestingly, an absolute decrease in CD4 subpopulation in patients with asymptomatic lymph node enlargement (LAS), is chiefly accounted for by a decrease in CD4-4B4 subset. The values of CD4-2H4 subset are significantly higher than those observed for SPC patients and are close to the normal values. These observations are of interest, as no differences between SPC and LAS patients could be detected when CD3, CD4 and CD8 subpopulations were studied.

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Accession: 039614586

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PMID: 2964959


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