PMID- 11931854 OWN - NLM STAT- MEDLINE DCOM- 20020712 LR - 20190614 IS - 0006-8993 (Print) IS - 0006-8993 (Linking) VI - 933 IP - 2 DP - 2002 Apr 19 TI - Involvement of brain cytokines in the neurobehavioral disturbances induced by HIV-1 glycoprotein120. PG - 98-108 AB - Intracerebroventricular (i.c.v.) administration of HIV-1 glycoprotein 120 (gp120), the envelope protein used by the virus to gain access into immune cells, induces neurobehavioral alterations in rats. To examine the role of proinflammatory cytokines in mediating these effects, we measured the effects of gp120 on brain proinflammatory cytokine expression and the effects of anti-inflammatory agents, including interleukin-1 receptor antagonist (IL-1ra), pentoxifylline (a TNFalpha synthesis blocker) and IL-10, on gp120-induced sickness behavior. I.c.v. administration of gp120 induced the expression of IL-1beta, but not TNFalpha, mRNA in the hypothalamus, 3 h after the injection. Pretreatment of rats with IL-1ra, but not with pentoxifylline, significantly attenuated gp120-induced anorexia and loss in body weight, whereas both agents had no effect on gp120-induced reduction in locomotor activity in the open field. Pretreatment with either IL-1ra and pentoxifylline simultaneously, or with IL-10, produced effects that were similar to the effects of IL-1ra alone. Together, these findings indicate that IL-1, but not TNFalpha, mediates some of the behavioral effects of acute gp120 administration, suggesting that brain IL-1 may be involved in some of the neurobehavioral abnormalities evident in AIDS patients. FAU - Barak, Ohr AU - Barak O AD - Department of Psychology, The Hebrew University of Jerusalem, Mount Scopus, Jerusalem, 91905, Israel. FAU - Goshen, Inbal AU - Goshen I FAU - Ben-Hur, Tamir AU - Ben-Hur T FAU - Weidenfeld, Joseph AU - Weidenfeld J FAU - Taylor, Anna N AU - Taylor AN FAU - Yirmiya, Raz AU - Yirmiya R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 RN - 0 (Cytokines) RN - 0 (Enzyme Inhibitors) RN - 0 (HIV Envelope Protein gp120) RN - 0 (Interleukin 1 Receptor Antagonist Protein) RN - 0 (Interleukin-1) RN - 0 (RNA, Messenger) RN - 0 (Sialoglycoproteins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 130068-27-8 (Interleukin-10) RN - SD6QCT3TSU (Pentoxifylline) SB - IM MH - AIDS Dementia Complex/*immunology/metabolism/virology MH - Animals MH - Behavior, Animal/drug effects/*physiology MH - Brain/drug effects/*immunology/virology MH - Cytokines/drug effects/*immunology/metabolism MH - Drug Interactions/physiology MH - Enzyme Inhibitors/pharmacology MH - Gene Expression Regulation, Viral/drug effects/physiology MH - HIV Envelope Protein gp120/*immunology/metabolism/pharmacology MH - Injections, Intraventricular MH - Interleukin 1 Receptor Antagonist Protein MH - Interleukin-1/antagonists & inhibitors/genetics MH - Interleukin-10/pharmacology MH - Male MH - Nerve Degeneration/*immunology/metabolism/virology MH - Neurons/drug effects/*immunology/virology MH - Pentoxifylline/pharmacology MH - RNA, Messenger/drug effects/metabolism MH - Rats MH - Rats, Inbred F344 MH - Sialoglycoproteins/immunology/pharmacology MH - Sick Role MH - Tumor Necrosis Factor-alpha/genetics EDAT- 2002/04/05 10:00 MHDA- 2002/07/13 10:01 CRDT- 2002/04/05 10:00 PHST- 2002/04/05 10:00 [pubmed] PHST- 2002/07/13 10:01 [medline] PHST- 2002/04/05 10:00 [entrez] AID - S0006899302022801 [pii] AID - 10.1016/s0006-8993(02)02280-1 [doi] PST - ppublish SO - Brain Res. 2002 Apr 19;933(2):98-108. doi: 10.1016/s0006-8993(02)02280-1.