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M9460224.TXT
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1994-06-12
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Document 0224
DOCN M9460224
TI Immunologic and virologic effects of glucocorticoids on human
immunodeficiency virus infection in children: a preliminary study.
DT 9408
AU Ferdman RM; Church JA; Childrens AIDS Center, Childrens Hospital Los
Angeles, CA.
SO Pediatr Infect Dis J. 1994 Mar;13(3):212-6. Unique Identifier : AIDSLINE
MED/94232703
AB The immune dysfunction in human immunodeficiency virus (HIV) infection
is complex and cannot be explained solely on the basis of numerical
depletion of T lymphocytes. Inappropriate, uncontrolled activation of
the immune system may be involved. In a test of this hypothesis, five
HIV-infected children were prospectively treated with prednisone and
selected immunologic and virologic indices were analyzed. Subjects had
marked T lymphopenia (CD4+ T lymphocytes < 500 cells/ml) and antigenemia
(serum p24 antigen > 30 pg/ml) and were free of opportunistic
infections. There was a significant drop in serum p24 antigen
concentrations from baseline (60.2 +/- 10.1% SEM; P < 0.005) 4 weeks
after initiation of prednisone, which returned to baseline
concentrations as the prednisone was tapered. Concomitant with this
decrease, there was decreased expression of cell surface activation
markers (HLA-DR, CD25 (interleukin 2 receptor) and CD26 (Ta-1)) in
peripheral T lymphocytes. There was no significant change in either T
lymphocyte subset numbers or mitogen and antigen-specific
lymphoproliferation. A regulatory dysfunction of the immune system,
allowing inappropriate activation of T lymphocytes, may be involved in
the pathogenesis of HIV disease, and further studies involving selective
immunosuppression in HIV disease are warranted.
DE Child Child, Preschool CD4-CD8 Ratio Human HIV Core Protein
p24/*BLOOD HIV Infections/*IMMUNOLOGY/MICROBIOLOGY Leukocyte Count
Lymphocyte Transformation Phenotype Prednisone/*PHARMACOLOGY
Prospective Studies T-Lymphocyte Subsets/*IMMUNOLOGY T4
Lymphocytes/*IMMUNOLOGY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).