PMID- 23797286 OWN - NLM STAT- MEDLINE DCOM- 20140617 LR - 20151119 IS - 1537-6591 (Electronic) IS - 1058-4838 (Linking) VI - 57 IP - 7 DP - 2013 Oct TI - Naturally selected rilpivirine-resistant HIV-1 variants by host cellular immunity. PG - 1051-5 LID - 10.1093/cid/cit430 [doi] AB - BACKGROUND: Rilpivirine is listed as an alternative key drug in current antiretroviral therapy (ART) guidelines. E138G/A/K in human immunodeficiency virus type 1 (HIV-1) reverse transcriptase (RT) are rilpivirine resistance-associated mutations and can be identified in a few ART-naive patients, although at low frequency. The 138th position in HIV-1 RT is located in one of the putative epitopes of human leukocyte antigen (HLA)-B*18-restricted cytotoxic T lymphocytes (CTLs). CTL-mediated immune pressure selects escape mutations within the CTL epitope. Here we tested whether E138G/A/K could be selected by HLA-B*18-restricted CTLs. METHODS: The amino acid variation at the 138th position was compared between ART-naive HIV-1-infected patients with and without HLA-B*18. The optimal epitope containing the 138th position was determined and the impact of E138G/A/K on CTL response was analyzed by epitope-specific CTLs. The effect of E138G/A/K on drug susceptibility was determined by constructing recombinant HIV-1 variants. RESULTS: The prevalence of E138G/A/K was 21% and 0.37% in 19 and 1088 patients with and without HLA-B*18, respectively (odds ratio, 72.3; P = 4.9 x 10(-25)). The CTL response was completely abolished by the substitution of E138G/A/K in the epitope peptide. E138G/A/K conferred 5.1-, 7.1-, and 2.7-fold resistance to rilpivirine, respectively. CONCLUSIONS: E138G/A/K can be selected by HLA-B*18-restricted CTLs and confer significant rilpivirine resistance. We recommend drug resistance testing before the introduction of rilpivirine-based ART in HLA-B*18-positive patients. FAU - Gatanaga, Hiroyuki AU - Gatanaga H AD - AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo. FAU - Murakoshi, Hayato AU - Murakoshi H FAU - Hachiya, Atsuko AU - Hachiya A FAU - Hayashida, Tsunefusa AU - Hayashida T FAU - Chikata, Takayuki AU - Chikata T FAU - Ode, Hirotaka AU - Ode H FAU - Tsuchiya, Kiyoto AU - Tsuchiya K FAU - Sugiura, Wataru AU - Sugiura W FAU - Takiguchi, Masafumi AU - Takiguchi M FAU - Oka, Shinichi AU - Oka S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130623 PL - United States TA - Clin Infect Dis JT - Clinical infectious diseases : an official publication of the Infectious Diseases Society of America JID - 9203213 RN - 0 (Anti-HIV Agents) RN - 0 (Epitopes, T-Lymphocyte) RN - 0 (HLA-B18 Antigen) RN - 0 (Nitriles) RN - 0 (Pyrimidines) RN - EC 2.7.7.- (reverse transcriptase, Human immunodeficiency virus 1) RN - EC 2.7.7.49 (HIV Reverse Transcriptase) RN - FI96A8X663 (Rilpivirine) SB - IM MH - Anti-HIV Agents/*pharmacology MH - Drug Resistance, Viral/genetics MH - Epitopes, T-Lymphocyte/*genetics MH - HIV Infections/*immunology/*virology MH - HIV Reverse Transcriptase/genetics MH - HIV-1/*drug effects/genetics/immunology MH - HLA-B18 Antigen/genetics/immunology MH - Host-Pathogen Interactions/genetics/immunology MH - Humans MH - Leukocytes, Mononuclear/immunology MH - Models, Molecular MH - Mutation MH - Nitriles/*pharmacology MH - Pyrimidines/*pharmacology MH - Rilpivirine MH - T-Lymphocytes, Cytotoxic/immunology OTO - NOTNLM OT - CTL OT - E138G/A/K OT - HLA-B*18 OT - rilpivirine EDAT- 2013/06/26 06:00 MHDA- 2014/06/18 06:00 CRDT- 2013/06/26 06:00 PHST- 2013/06/26 06:00 [entrez] PHST- 2013/06/26 06:00 [pubmed] PHST- 2014/06/18 06:00 [medline] AID - cit430 [pii] AID - 10.1093/cid/cit430 [doi] PST - ppublish SO - Clin Infect Dis. 2013 Oct;57(7):1051-5. doi: 10.1093/cid/cit430. Epub 2013 Jun 23.