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M9620593.TXT
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1996-02-26
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Document 0593
DOCN M9620593
TI In vitro influence of Mycoplasma penetrans on activation of peripheral T
lymphocytes from healthy donors or human immunodeficiency virus-infected
individuals.
DT 9602
AU Sasaki Y; Blanchard A; Watson HL; Garcia S; Dulioust A; Montagnier L;
Gougeon ML; Departement du SIDA et des Retrovirus, Institut Pasteur,
Paris,; France.
SO Infect Immun. 1995 Nov;63(11):4277-83. Unique Identifier : AIDSLINE
MED/96029717
AB Mycoplasma penetrans is a mycoplasma species newly isolated from the
urine of human immunodeficiency virus (HIV)-infected individuals and
presents the only case in which an association has been found between
antibodies against a mycoplasma and HIV infection. To further explore
the effects of M. penetrans on the immune system, we studied the
influence of this mycoplasma on peripheral blood mononuclear cells
(PBMCs) from healthy donors and HIV-infected individuals. M. penetrans
induced, in addition to blastogenesis of PBMCs, a significant
proliferative response associated with the expression of some activation
markers such as CD69, HLA-DR, and CD25. This M. penetrans-dependent
lymphocyte activation was observed not only in healthy donors but also
in HIV-infected persons at different stages of the disease. In addition,
our study revealed that both CD4+ and CD8+ T lymphocytes were responsive
to M. penetrans. Interestingly, the mitogenic activity of M. penetrans
was associated with mycoplasma cells but not with the supernatants of
mycoplasma culture. The potent stimulating activity of M. penetrans on T
lymphocytes from HIV-infected individuals is of particular interest in
view of the supposed contribution of immune activation to HIV
replication and disease progression.
DE Antigens, CD/METABOLISM Antigens, CD4/METABOLISM Antigens,
Differentiation, T-Lymphocyte/METABOLISM Cell Division Cells, Cultured
Human HIV Infections/*IMMUNOLOGY *Lymphocyte Transformation
Mycoplasma penetrans/*IMMUNOLOGY Receptors, Interleukin-2/METABOLISM
Support, Non-U.S. Gov't T-Lymphocytes/*IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).