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© Research
Publication : FASEB journal : official publication of the Federation of American Societies for Experimental Biology

Histopathological and cognitive defects induced by Nef in the brain

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in FASEB journal : official publication of the Federation of American Societies for Experimental Biology - 01 Dec 2004

Mordelet E, Kissa K, Cressant A, Gray F, Ozden S, Vidal C, Charneau P, Granon S

Link to Pubmed [PMID] – 15576488

FASEB J. 2004 Dec;18(15):1851-61

Complex mechanisms of human immunodeficiency virus type-1 (HIV-1) brain pathogenesis suggest the contribution of individual HIV-1 gene products. Among them, the Nef protein has been reported to harbor a major determinant of pathogenicity in AIDS-like disease. The goal of the present study was to determine whether Nef protein expressed in vivo by primary macrophages could induce a brain toxicity also affecting the behavior of the rat. To achieve this goal we grafted Nef-transduced macrophages into the rat hippocampus. Two months post-transplantation, we observed that Nef induces monocyte/macrophage recruitment, expression of TNF-alpha, and astrogliosis. No apoptotic event was detected. We further demonstrated that Nef neurotoxicity is associated with cognitive deficits.

http://www.ncbi.nlm.nih.gov/pubmed/15576488