PMID- 22875102 OWN - NLM STAT- MEDLINE DCOM- 20130509 LR - 20211021 IS - 1528-3658 (Electronic) IS - 1076-1551 (Print) IS - 1076-1551 (Linking) VI - 18 IP - 1 DP - 2012 Oct 24 TI - CCR5 antagonism impacts vaccination response and immune profile in HIV-1 infection. PG - 1240-8 LID - 10.2119/molmed.2012.00206 [doi] AB - Maraviroc (MVC) is the first licensed antiretroviral therapeutic agent to target a host cell surface molecule, and successful HIV-1 entry blockade by this C-C chemokine receptor type 5 (CCR5)-antagonist potentiates immunomodulation. We hypothesized that MVC intensification impacts immunization responses, T-cell phenotype, function and delayed type hypersensitivity (DTH) in HIV-1(+) subjects. A 24-wk, double-blinded, placebo-controlled study of the addition of MVC to suppressive antiretroviral therapy in HIV-1(+) persons was performed. Subjects received DTH tests, intramuscular tetanus, meningococcal and oral cholera immunizations. Antibody titers, T-cell function and phenotype were assessed. Of 157 patients referred, 47 were randomized 1:1; MVC:placebo. MVC enhanced meningococcal neo-immunization, blunted cholera response and expedited lymphoproliferation to tetanus boost, without affecting recall humoral response. Anti-HIV-1 group-specific antigen (Gag) and tetanus toxoid (TTox) function improved significantly, HIV-1-associated CD8 T-cell skewing normalized, and the percentage of late-stage and major histocompatibility complex (MHC) class II expressing CD4 T-cells increased. Activated CD4(+) CD38(+) human leukocyte antigen (HLA)-DR(+) T-cells declined, and costimulation shifted to coinhibition. DTH was unchanged. Maraviroc intensification, through antagonism of the cell surface molecule CCR5, favorably influences immune profiles of HIV-1(+) patients, supporting its immunomodulatory use in HIV-1 infection and potentially in other immunologically relevant settings. FAU - Westrop, Samantha J AU - Westrop SJ AD - Department of Medicine, Imperial College London, London, UK. FAU - Moyle, Graeme AU - Moyle G FAU - Jackson, Akil AU - Jackson A FAU - Nelson, Mark AU - Nelson M FAU - Mandalia, Sundhiya AU - Mandalia S FAU - Imami, Nesrina AU - Imami N LA - eng GR - G0501957/Medical Research Council/United Kingdom PT - Clinical Trial, Phase IV PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121024 PL - England TA - Mol Med JT - Molecular medicine (Cambridge, Mass.) JID - 9501023 RN - 0 (AIDS Vaccines) RN - 0 (CCR5 Receptor Antagonists) RN - 0 (Cyclohexanes) RN - 0 (Receptors, CCR5) RN - 0 (Triazoles) RN - MD6P741W8A (Maraviroc) SB - IM MH - AIDS Vaccines/*immunology MH - *CCR5 Receptor Antagonists MH - Cyclohexanes/adverse effects/pharmacology MH - Female MH - HIV Infections/*immunology/*prevention & control MH - HIV-1/drug effects/*immunology MH - Humans MH - Immunity/drug effects/*immunology MH - Immunity, Cellular/drug effects/immunology MH - Immunity, Humoral/drug effects/immunology MH - Immunophenotyping MH - Male MH - Maraviroc MH - Middle Aged MH - Receptors, CCR5/metabolism MH - T-Lymphocytes/drug effects/immunology MH - Treatment Outcome MH - Triazoles/adverse effects/pharmacology MH - *Vaccination/adverse effects PMC - PMC3510292 EDAT- 2012/08/10 06:00 MHDA- 2013/05/10 06:00 PMCR- 2012/08/07 CRDT- 2012/08/10 06:00 PHST- 2012/05/08 00:00 [received] PHST- 2012/08/07 00:00 [accepted] PHST- 2012/08/10 06:00 [entrez] PHST- 2012/08/10 06:00 [pubmed] PHST- 2013/05/10 06:00 [medline] PHST- 2012/08/07 00:00 [pmc-release] AID - molmed.2012.00206 [pii] AID - 12_206_westrop [pii] AID - 10.2119/molmed.2012.00206 [doi] PST - epublish SO - Mol Med. 2012 Oct 24;18(1):1240-8. doi: 10.2119/molmed.2012.00206.