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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1998-1-9
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pubmed:abstractText |
Human immunodeficiency virus type I (HIV-1)-derived envelope glycoprotein 120 (gp120) is proposed to play an important role in HIV-1 neuropathology. Gp120 may act through mediators including proinflammatory cytokines. Here, we investigated the regulation of the IL-1beta system [IL-1beta, IL-1 receptor type I (IL-1RI), IL-1 receptor antagonist (IL-1Ra)], TNF-alpha and TGF-alpha mRNAs in the rat central nervous system (CNS) in response to the constant intracerebroventricular (ICV) microinfusion of HIV-1 gp120 for 72 h and 144 h. The results show that gp120: (1) increased IL-1beta and IL-1Ra mRNAs levels in the same samples from the cerebellum, hypothalamus and midbrain, with the largest increase in the hypothalamus; (2) induced profiles of IL-1beta mRNA and IL-1Ra mRNA that were highly intercorrelated; (3) increased the hypothalamic TNF-alpha mRNA levels; and (4) did not affect the IL-1RI mRNA and TGF-alpha mRNA levels in any brain region. A dysregulation in the IL-1beta/IL-1Ra CNS balance and a mutual induction and synergistic activity of IL-1beta and TNF-alpha could result in a deleterious amplification cycle of cellular activation and cytotoxicity with implications to HIV-1-associated encephalitis, encephalopathy, and neurological manifestations.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:issn |
0361-9230
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
44
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
67-73
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9288832-Animals,
pubmed-meshheading:9288832-Brain,
pubmed-meshheading:9288832-HIV Envelope Protein gp120,
pubmed-meshheading:9288832-HIV-1,
pubmed-meshheading:9288832-Interleukin-1,
pubmed-meshheading:9288832-Male,
pubmed-meshheading:9288832-RNA, Messenger,
pubmed-meshheading:9288832-Rats,
pubmed-meshheading:9288832-Rats, Wistar,
pubmed-meshheading:9288832-Tumor Necrosis Factor-alpha
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pubmed:year |
1997
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pubmed:articleTitle |
HIV-1 envelope glycoprotein 120 regulates brain IL-1beta system and TNF-alpha mRNAs in vivo.
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pubmed:affiliation |
Division of Molecular Biology, School of Life and Health Sciences, University of Delaware, Newark 19716-2590, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|