NDLI: Apoptosis in Cord Blood T Lymphocytes from Infants of Human Immunodeficiency Virus-Infected Mothers

Content Provider	PubMed Central
Author	Economides, Athena Schmid, Ingrid Anisman-posner, Deborah J. Susan, Plaeger Bryson, Yvonne J. Uittenbogaart, Christel H.
Copyright Year	1998
Abstract	Apoptosis continues to be controversial in human immunodeficiency virus (HIV)-induced pathogenesis. To investigate whether apoptosis occurs with HIV exposure with or without subsequent infection, levels of apoptosis were measured in cord blood lymphocytes (CBL) from seven newborns delivered to HIV-infected mothers and seven normal, unexposed newborns. Live cells were costained with antibodies to cell surface markers and the DNA dye 7-amino actinomycin D to immunophenotype apoptotic CBL subsets. Apoptosis was measured in fresh and cultured CBL in the presence and absence of CD3 T-cell receptor stimulation. Compared to the CD4+ CBL from HIV-unexposed newborns, CD4+ CBL from six HIV-exposed, noninfected newborns demonstrated significantly greater apoptosis after overnight culture even in the absence of CD3 stimulation. Compared to HIV-unexposed controls, CD8+ CBL from the six HIV-exposed newborns also demonstrated increased levels of apoptosis after overnight culture without stimulation. The one HIV-infected newborn in this study showed the highest levels of CD4+ and CD8+ apoptotic CBL. The data suggest that levels of apoptosis are increased in infants in association with HIV infection. Furthermore, CD4+ and CD8+ cord blood lymphocytes from HIV-exposed infants behaved differently than T lymphocytes from either normal, unexposed infants or an HIV-infected infant. These results suggest that exposure to HIV or HIV-induced factors increases the levels of apoptosis in CBL.
Starting Page	230
File Format	PDF
ISSN	10986588
e-ISSN	10986588
Journal	Clinical and Diagnostic Laboratory Immunology
Issue Number	2
Volume Number	5
Language	English
Publisher	American Society for Microbiology
Publisher Date	1998-03-01
Access Restriction	Open
Rights Holder	American Society for Microbiology
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Immunology and Allergy Clinical Biochemistry Immunology Microbiology (medical)

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