PMID- 12374865 OWN - NLM STAT- MEDLINE DCOM- 20021204 LR - 20240410 IS - 0027-8424 (Print) IS - 1091-6490 (Electronic) IS - 0027-8424 (Linking) VI - 99 IP - 21 DP - 2002 Oct 15 TI - HIV-1 infection and AIDS dementia are influenced by a mutant MCP-1 allele linked to increased monocyte infiltration of tissues and MCP-1 levels. PG - 13795-800 AB - Studies in humans and in experimental models of HIV-1 infection indicate an important role for monocyte chemoattractant protein-1 (MCP-1; also known as CC chemokine ligand 2), a potent chemoattractant and activator of mononuclear phagocytes (MP) in the pathogenesis of HIV-associated dementia (HAD). We determined the influence of genetic variation in MCP-1 on HIV-1 pathogenesis in large cohorts of HIV-1-infected adults and children. In adults, homozygosity for the MCP-1 -2578G allele was associated with a 50% reduction in the risk of acquiring HIV-1. However, once HIV-1 infection was established, this same MCP-1 genotype was associated with accelerated disease progression and a 4.5-fold increased risk of HAD. We examined the molecular and cellular basis for these genotype-phenotype associations and found that the mutant MCP-1 -2578G allele conferred greater transcriptional activity via differential DNA-protein interactions, enhanced protein production in vitro, increased serum MCP-1 levels, as well as MP infiltration into tissues. Thus, MCP-1 expression had a two-edged role in HIV-1 infection: it afforded partial protection from viral infection, but during infection, its proinflammatory properties and ability to up-regulate HIV-1 replication collectively may contribute to accelerated disease progression and increased risk of dementia. Our findings suggest that MCP-1 antagonists may be useful in HIV-1 infection, especially for HAD, and that HIV+ individuals possessing the MCP-1 -2578G allele may benefit from early initiation of antiretroviral drugs that effectively cross the blood-brain barrier. In a broader context, the MCP-1 -2578G allele may serve as a genetic determinant of outcome of other disease states in which MP-mediated tissue injury is central to disease pathogenesis. FAU - Gonzalez, Enrique AU - Gonzalez E AD - Veterans Administration Research Center for AIDS and HIV-1 Infection and University of Texas Health Science Center, San Antonio, TX 78229, USA. FAU - Rovin, Brad H AU - Rovin BH FAU - Sen, Luisa AU - Sen L FAU - Cooke, Glen AU - Cooke G FAU - Dhanda, Rahul AU - Dhanda R FAU - Mummidi, Srinivas AU - Mummidi S FAU - Kulkarni, Hemant AU - Kulkarni H FAU - Bamshad, Michael J AU - Bamshad MJ FAU - Telles, Vanessa AU - Telles V FAU - Anderson, Stephanie A AU - Anderson SA FAU - Walter, Elizabeth A AU - Walter EA FAU - Stephan, Kevin T AU - Stephan KT FAU - Deucher, Michael AU - Deucher M FAU - Mangano, Andrea AU - Mangano A FAU - Bologna, Rosa AU - Bologna R FAU - Ahuja, Seema S AU - Ahuja SS FAU - Dolan, Matthew J AU - Dolan MJ FAU - Ahuja, Sunil K AU - Ahuja SK LA - eng GR - R37 AI046326/AI/NIAID NIH HHS/United States GR - P01 DK055546/DK/NIDDK NIH HHS/United States GR - R21 AI046326/AI/NIAID NIH HHS/United States GR - AI 46326/AI/NIAID NIH HHS/United States GR - R01 AI046326/AI/NIAID NIH HHS/United States GR - P01 DK 55546/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Research Support, U.S. Gov't, P.H.S. DEP - 20021008 PL - United States TA - Proc Natl Acad Sci U S A JT - Proceedings of the National Academy of Sciences of the United States of America JID - 7505876 RN - 0 (Chemokine CCL2) SB - IM MH - AIDS Dementia Complex/*genetics/metabolism/*pathology MH - Adult MH - Alleles MH - Chemokine CCL2/*genetics/metabolism MH - Child MH - Cohort Studies MH - Genetic Variation MH - Genotype MH - HIV Infections/*genetics/metabolism/*pathology MH - HIV-1 MH - Haplotypes MH - Humans MH - Monocytes/*pathology MH - *Mutation MH - Phenotype MH - Polymorphism, Single Nucleotide MH - Risk Factors PMC - PMC129777 EDAT- 2002/10/11 04:00 MHDA- 2002/12/05 04:00 PMCR- 2003/04/15 CRDT- 2002/10/11 04:00 PHST- 2002/10/11 04:00 [pubmed] PHST- 2002/12/05 04:00 [medline] PHST- 2002/10/11 04:00 [entrez] PHST- 2003/04/15 00:00 [pmc-release] AID - 202357499 [pii] AID - 3574 [pii] AID - 10.1073/pnas.202357499 [doi] PST - ppublish SO - Proc Natl Acad Sci U S A. 2002 Oct 15;99(21):13795-800. doi: 10.1073/pnas.202357499. Epub 2002 Oct 8.