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M9610441.TXT
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1996-01-30
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Document 0441
DOCN M9610441
TI beta-Endorphin enhances the replication of neurotropic human
immunodeficiency virus in fetal perivascular microglia.
DT 9601
AU Sundar KS; Kamaraju LS; Dingfelder J; McMahon J; Gollapudi S; Wilson WH;
Kong LY; Hong JS; Weiss JM; Lee JE; Department of Psychiatry, Duke
University Medical Center, Durham,; NC 27710, USA.
SO J Neuroimmunol. 1995 Aug;61(1):97-104. Unique Identifier : AIDSLINE
MED/96032339
AB The effect of an endogenous opiate, beta-endorphin, on the replication
of HIV was investigated in brain perivascular microglia. Beta-endorphin
enhanced the synthesis of p-24 antigen and transactivation of HIV
promoter. Dialysed culture supernatants of endorphin-treated microglia
re-activated latent HIV infection. These culture supernatants showed
elevated levels of interleukin-1 beta, IL-6 and tumor necrosis factor
alpha. Sub-optimal concentration of beta-endorphin potentiated
GP-120-induced synthesis of these cytokines. Nalaxone reversed
beta-endorphin-induced, but not GP-120-induced, cytokine production and
enhanced HIV replication. These results suggest that endogenous opiates
may contribute to the progression of AIDS dementia complex.
DE beta-Endorphin/*PHARMACOLOGY Cytokines/BIOSYNTHESIS Human HIV/*GROWTH
& DEVELOPMENT/PATHOGENICITY HIV Long Terminal Repeat In Vitro
Microglia/*MICROBIOLOGY Naloxone/PHARMACOLOGY Narcotic
Antagonists/PHARMACOLOGY Receptors, Opioid/ANTAGONISTS & INHIB
Support, U.S. Gov't, P.H.S. Trans-Activation (Genetics) Virus Latency
Virus Replication/*DRUG EFFECTS JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).