PMID- 14770175 OWN - NLM STAT- MEDLINE DCOM- 20040507 LR - 20111117 IS - 1078-8956 (Print) IS - 1078-8956 (Linking) VI - 10 IP - 3 DP - 2004 Mar TI - HIV evolution: CTL escape mutation and reversion after transmission. PG - 282-9 AB - Within-patient HIV evolution reflects the strong selection pressure driving viral escape from cytotoxic T-lymphocyte (CTL) recognition. Whether this intrapatient accumulation of escape mutations translates into HIV evolution at the population level has not been evaluated. We studied over 300 patients drawn from the B- and C-clade epidemics, focusing on human leukocyte antigen (HLA) alleles HLA-B57 and HLA-B5801, which are associated with long-term HIV control and are therefore likely to exert strong selection pressure on the virus. The CTL response dominating acute infection in HLA-B57/5801-positive subjects drove positive selection of an escape mutation that reverted to wild-type after transmission to HLA-B57/5801-negative individuals. A second escape mutation within the epitope, by contrast, was maintained after transmission. These data show that the process of accumulation of escape mutations within HIV is not inevitable. Complex epitope- and residue-specific selection forces, including CTL-mediated positive selection pressure and virus-mediated purifying selection, operate in tandem to shape HIV evolution at the population level. FAU - Leslie, A J AU - Leslie AJ AD - Department of Pediatrics, Fuffield Department of Medicine, Peter Medawar Building for Pathogen Research, University of Oxford, Oxford OX1 3SY, UK. FAU - Pfafferott, K J AU - Pfafferott KJ FAU - Chetty, P AU - Chetty P FAU - Draenert, R AU - Draenert R FAU - Addo, M M AU - Addo MM FAU - Feeney, M AU - Feeney M FAU - Tang, Y AU - Tang Y FAU - Holmes, E C AU - Holmes EC FAU - Allen, T AU - Allen T FAU - Prado, J G AU - Prado JG FAU - Altfeld, M AU - Altfeld M FAU - Brander, C AU - Brander C FAU - Dixon, C AU - Dixon C FAU - Ramduth, D AU - Ramduth D FAU - Jeena, P AU - Jeena P FAU - Thomas, S A AU - Thomas SA FAU - St John, A AU - St John A FAU - Roach, T A AU - Roach TA FAU - Kupfer, B AU - Kupfer B FAU - Luzzi, G AU - Luzzi G FAU - Edwards, A AU - Edwards A FAU - Taylor, G AU - Taylor G FAU - Lyall, H AU - Lyall H FAU - Tudor-Williams, G AU - Tudor-Williams G FAU - Novelli, V AU - Novelli V FAU - Martinez-Picado, J AU - Martinez-Picado J FAU - Kiepiela, P AU - Kiepiela P FAU - Walker, B D AU - Walker BD FAU - Goulder, P J R AU - Goulder PJ LA - eng GR - AI46995-01A1/AI/NIAID NIH HHS/United States GR - N01-AI-15442/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. DEP - 20040208 PL - United States TA - Nat Med JT - Nature medicine JID - 9502015 RN - 0 (Epitopes) RN - 0 (HLA-B Antigens) RN - 0 (HLA-B57 antigen) SB - IM CIN - Nat Med. 2004 Mar;10(3):229-30. PMID: 14991039 MH - Adult MH - Amino Acid Sequence MH - Child MH - Epitopes MH - *Evolution, Molecular MH - Female MH - Genetic Variation MH - HIV Infections/immunology/transmission/*virology MH - HIV-1/genetics/immunology/*physiology MH - HLA-B Antigens/genetics/immunology MH - Humans MH - Infectious Disease Transmission, Vertical MH - Likelihood Functions MH - *Mutation MH - Phylogeny MH - Selection, Genetic MH - T-Lymphocytes, Cytotoxic/*immunology/metabolism MH - Viral Load EDAT- 2004/02/11 05:00 MHDA- 2004/05/08 05:00 CRDT- 2004/02/11 05:00 PHST- 2003/11/16 00:00 [received] PHST- 2004/01/08 00:00 [accepted] PHST- 2004/02/11 05:00 [pubmed] PHST- 2004/05/08 05:00 [medline] PHST- 2004/02/11 05:00 [entrez] AID - nm992 [pii] AID - 10.1038/nm992 [doi] PST - ppublish SO - Nat Med. 2004 Mar;10(3):282-9. doi: 10.1038/nm992. Epub 2004 Feb 8.