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. 2002 Feb 15;16(3):347-51.
doi: 10.1097/00002030-200202150-00005.

Monocytes and T lymphocytes in HIV-1-positive patients express HLA-G molecule

José M Lozano  1 , Rafael González, José M Kindelán, Nathalie Rouas-Freiss, Rafael Caballos, Jean Dausset, Edgardo D Carosella, José Peña
Affiliations

Monocytes and T lymphocytes in HIV-1-positive patients express HLA-G molecule

José M Lozano et al. AIDS. .

Abstract

Objective: To study the expression of HLA-G on peripheral blood mononuclear cells (PBMC) from HIV-1-infected individuals in order to determine whether this molecule is induced as a consequence of HIV-1 infection.

Design: A total of 23 HIV-positive individuals in different stages of the disease were studied.

Methods: Flow cytometric analysis and Western blot were used to measure HLA-G expression on PBMC obtained from HIV-positive and control individuals.

Results: Most of the monocytes obtained from HIV-1-infected individuals express HLA-G, whereas only a very low proportion of monocytes from healthy individuals express this molecule. When T lymphocytes from HIV-1 infections were studied, it was found that 30% of them express HLA-G, whereas only 1% were HLA-G-positive in healthy individuals. HLA-G expression was also confirmed by Western blot using specific anti-HLA-G monoclonal antibodies.

Conclusion: The synthesis of HLA-G is increased in monocytes and certain T lymphocytes from HIV-1-infected individuals.

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