PMID- 26372271 OWN - NLM STAT- MEDLINE DCOM- 20160606 LR - 20221207 IS - 1473-5571 (Electronic) IS - 0269-9370 (Linking) VI - 29 IP - 13 DP - 2015 Aug 24 TI - The effect of KIR2D-HLA-C receptor-ligand interactions on clinical outcome in a HIV-1 CRF01_AE-infected Thai population. PG - 1607-15 LID - 10.1097/QAD.0000000000000747 [doi] AB - OBJECTIVE: Class I human leukocyte antigen (HLA) alleles interact with both cytotoxic T lymphocytes through their T-cell receptors, and natural killer cells through their killer immunoglobulin-like receptors (KIRs). Compared with the reported protective effect of KIR3DL1/S1-HLA-Bw4 interactions in HIV-infected patients, the effect of KIR2D-HLA-C combinations on HIV control remains unclear. Here, we investigate the effect of KIR2D-HLA-C combinations on HIV disease progression. DESIGN: We performed a cross-sectional and longitudinal analysis of a Thai HIV cohort. METHODS: Two hundred and nine HIV-1 CRF01_AE-infected, treatment-naive Thai patients (CD4 T-cell counts of >200/mul) and 104 exposed seronegatives were studied. The effect of KIR-HLA receptor-ligand combinations on viral transmission and survival rate was statistically analyzed. RESULTS: We found the following results: higher frequency of patients expressing both KIR2DL3 and HLA-C1 among infected patients compared with exposed seronegative (odds ratio 4.8, P = 0.004), higher viral load in patients expressing HLA-C1 with KIR2DL3 compared with those without this receptor-ligand combination (median 4.8 vs. 4.2 log copies/ml, P = 0.033), higher numbers of KIR2DL3-HLA-C1 interactions was associated with a higher viral load (beta = 0.13, P = 0.039 by linear regression model), and higher mortality rate in carriers of the KIR2DL3-HLA-C1 combination (adjusted hazard ratio 1.9, P = 0.012 by Cox hazard model). CONCLUSION: We have identified a deleterious effect of the KIR2DL3-HLA-C1 receptor-ligand combination on HIV clinical outcomes in a Thai cohort. Further investigation into mechanisms underlying this susceptibility may aid the understanding of the role of natural killer cells in HIV disease control and pathogenesis. FAU - Mori, Masahiko AU - Mori M AD - aDepartment of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan bDepartment of Paediatrics, University of Oxford, Oxford, UK cThai National Institute of Health, Department of Medical Sciences, Ministry of Public Health, Nonthaburi dDay Care Centre, Lampang Hospital, Lampang, Thailand eNagasaki University Global COE Program, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan. FAU - Wichukchinda, Nuanjun AU - Wichukchinda N FAU - Miyahara, Reiko AU - Miyahara R FAU - Rojanawiwat, Archawin AU - Rojanawiwat A FAU - Pathipvanich, Panita AU - Pathipvanich P FAU - Tsuchiya, Naho AU - Tsuchiya N FAU - Miura, Toshiyuki AU - Miura T FAU - Yasunami, Michio AU - Yasunami M FAU - Ariyoshi, Koya AU - Ariyoshi K FAU - Sawanpanyalert, Pathom AU - Sawanpanyalert P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - AIDS JT - AIDS (London, England) JID - 8710219 RN - 0 (HLA-C Antigens) RN - 0 (KIR2DL3 protein, human) RN - 0 (Receptors, KIR2DL3) SB - IM MH - Adult MH - Asian People MH - Cross-Sectional Studies MH - Disease Progression MH - *Disease Susceptibility MH - Female MH - HIV Infections/*immunology/transmission/virology MH - HIV-1/*immunology MH - HLA-C Antigens/*metabolism MH - Humans MH - Longitudinal Studies MH - Male MH - Receptors, KIR2DL3/*metabolism MH - Survival Analysis MH - Treatment Outcome EDAT- 2015/09/16 06:00 MHDA- 2016/06/09 06:00 CRDT- 2015/09/16 06:00 PHST- 2015/09/16 06:00 [entrez] PHST- 2015/09/16 06:00 [pubmed] PHST- 2016/06/09 06:00 [medline] AID - 00002030-201508240-00004 [pii] AID - 10.1097/QAD.0000000000000747 [doi] PST - ppublish SO - AIDS. 2015 Aug 24;29(13):1607-15. doi: 10.1097/QAD.0000000000000747.