PMID- 23521884 OWN - NLM STAT- MEDLINE DCOM- 20130517 LR - 20220129 IS - 1097-4180 (Electronic) IS - 1074-7613 (Linking) VI - 38 IP - 3 DP - 2013 Mar 21 TI - A molecular basis for the control of preimmune escape variants by HIV-specific CD8+ T cells. PG - 425-36 LID - S1074-7613(13)00106-4 [pii] LID - 10.1016/j.immuni.2012.11.021 [doi] AB - The capacity of the immune system to adapt to rapidly evolving viruses is a primary feature of effective immunity, yet its molecular basis is unclear. Here, we investigated protective HIV-1-specific CD8+ T cell responses directed against the immunodominant p24 Gag-derived epitope KK10 (KRWIILGLNK263-272) presented by human leukocyte antigen (HLA)-B *2705. We found that cross-reactive CD8+ T cell clonotypes were mobilized to counter the rapid emergence of HIV-1 variants that can directly affect T cell receptor (TCR) recognition. These newly recruited clonotypes expressed TCRs that engaged wild-type and mutant KK10 antigens with similar affinities and almost identical docking modes, thereby accounting for their antiviral efficacy in HLA-B *2705+ individuals. A protective CD8+ T cell repertoire therefore encompasses the capacity to control TCR-accessible mutations, ultimately driving the development of more complex viral escape variants that disrupt antigen presentation. CI - Copyright (c) 2013 Elsevier Inc. All rights reserved. FAU - Ladell, Kristin AU - Ladell K AD - Institute of Infection and Immunity, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, Wales, UK. FAU - Hashimoto, Masao AU - Hashimoto M FAU - Iglesias, Maria Candela AU - Iglesias MC FAU - Wilmann, Pascal G AU - Wilmann PG FAU - McLaren, James E AU - McLaren JE FAU - Gras, Stephanie AU - Gras S FAU - Chikata, Takayuki AU - Chikata T FAU - Kuse, Nozomi AU - Kuse N FAU - Fastenackels, Solene AU - Fastenackels S FAU - Gostick, Emma AU - Gostick E FAU - Bridgeman, John S AU - Bridgeman JS FAU - Venturi, Vanessa AU - Venturi V FAU - Arkoub, Zaina Ait AU - Arkoub ZA FAU - Agut, Henri AU - Agut H FAU - van Bockel, David J AU - van Bockel DJ FAU - Almeida, Jorge R AU - Almeida JR FAU - Douek, Daniel C AU - Douek DC FAU - Meyer, Laurence AU - Meyer L FAU - Venet, Alain AU - Venet A FAU - Takiguchi, Masafumi AU - Takiguchi M FAU - Rossjohn, Jamie AU - Rossjohn J FAU - Price, David A AU - Price DA FAU - Appay, Victor AU - Appay V LA - eng GR - 100326/Wellcome Trust/United Kingdom GR - BB/H001085/1/BB_/Biotechnology and Biological Sciences Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Immunity JT - Immunity JID - 9432918 RN - 0 (Epitopes, T-Lymphocyte) RN - 0 (HIV Core Protein p24) RN - 0 (HLA-B*27:05 antigen) RN - 0 (HLA-B27 Antigen) RN - 0 (Immunodominant Epitopes) RN - 0 (Receptors, Antigen, T-Cell) RN - 0 (p24 protein, Human Immunodeficiency Virus Type 1) SB - IM MH - Amino Acid Sequence MH - Antigen Presentation/immunology MH - CD8-Positive T-Lymphocytes/*immunology/metabolism/virology MH - Clone Cells/immunology/metabolism/virology MH - Crystallography, X-Ray MH - Epitopes, T-Lymphocyte/chemistry/immunology/metabolism MH - HIV Core Protein p24/genetics/immunology/metabolism MH - HIV Infections/*immunology/virology MH - HIV-1/genetics/*immunology/metabolism MH - HLA-B27 Antigen/chemistry/*immunology/metabolism MH - Humans MH - Immunodominant Epitopes/chemistry/immunology/metabolism MH - Models, Molecular MH - Molecular Sequence Data MH - Mutation MH - Protein Binding/immunology MH - Protein Structure, Tertiary MH - Receptors, Antigen, T-Cell/genetics/immunology/metabolism EDAT- 2013/03/26 06:00 MHDA- 2013/05/18 06:00 CRDT- 2013/03/26 06:00 PHST- 2012/03/24 00:00 [received] PHST- 2012/11/05 00:00 [accepted] PHST- 2013/03/26 06:00 [entrez] PHST- 2013/03/26 06:00 [pubmed] PHST- 2013/05/18 06:00 [medline] AID - S1074-7613(13)00106-4 [pii] AID - 10.1016/j.immuni.2012.11.021 [doi] PST - ppublish SO - Immunity. 2013 Mar 21;38(3):425-36. doi: 10.1016/j.immuni.2012.11.021.