PMID- 32027612 OWN - NLM STAT- MEDLINE DCOM- 20200406 LR - 20200408 IS - 1972-2680 (Electronic) IS - 1972-2680 (Linking) VI - 12 IP - 12 DP - 2018 Dec 31 TI - HLA-C*18:01 and KIR2DL2+C1 genetic variants are associated with low viral load in cART naive HIV-infected adult Zimbabweans. PG - 1105-1111 LID - 10.3855/jidc.10848 [doi] AB - INTRODUCTION: Polymorphisms in killer cell immunoglobulin-like receptor (KIR) and human leukocyte antigen (HLA) gene families are implicated in differential outcomes of HIV infection. However, research findings on the influence of KIR and HLA-C polymorphism on HIV disease progression remain inconclusive. We thus investigated the association of KIR and HLA-C gene polymorphisms with plasma HIV load (VL) and CD4+ T lymphocyte (CD4) count in 183 chronically HIV-infected, combination antiretroviral therapy (cART) naive Zimbabweans of Bantu origin. METHODOLOGY: The presence or absence of 15 KIR genes were determined using sequence specific primer polymerase chain reaction while HLA-C typing was performed using chain termination DNA sequencing. Plasma VL was determined using the Cavidi Exavir viral load version 3 assay while CD4+ T lymphocytes were enumerated using flow cytometry. VLs and CD4 counts were compared between gene/genotype carriers and non-carriers using Mann-Whitney ranksum test. RESULTS: HLA-C*18:01 allele carriers had a significantly lower median log10 VL (2.87copies/mL [IQR;2.3-3.2]) than the non-C*18:01 carriers (3.33copies/mL [IQR; 2.74-3.9]), p = 0.018. Further, median log10 VL was significantly lower in KIR2DL2+C1 carriers (2.745 [IQR; 2.590-2.745]) than non-KIR2DL2+C1 carriers (3.4 [IQR; 2.746-3.412]), p = 0.041. Comparison of CD4 + T lymphocyte counts between C*08:02 allele carriers and non-C*08:02 carriers showed a significantly higher median CD4 count in C*08:02 carriers (548cells/microL [IQR;410-684]) than in non-carriers (428cells/microL [IQR;388-537]), p = 0.034. CONCLUSION: We conclude that the HLA-C*18:01 and KIR2DL2+C1 genetic variants are associated with low VL while the C*08:02 is associated with high CD4+ T lymphocyte count among cART naive Zimbabwean adults with chronic HIV infection. CI - Copyright (c) 2018 Kudakwashe Mhandire, Mqondisi Tshabalala, Lynn Sodai Zijenah, Sarah L Rowland-Jones, Babill Stray-Pedersen. FAU - Mhandire, Kudakwashe AU - Mhandire K AD - University of Zimbabwe College of Health Sciences, Harare, Zimbabwe. mhandiremhandire@gmail.com. FAU - Tshabalala, Mqondisi AU - Tshabalala M AD - University of Zimbabwe College of Health Sciences, Harare, Zimbabwe. mtshabaz@gmail.com. FAU - Zijenah, Lynn Sodai AU - Zijenah LS AD - University of Zimbabwe College of Health Sciences, Harare, Zimbabwe. lzijenah@gmail.com. FAU - Mlambo, Tommy AU - Mlambo T AD - University of Zimbabwe College of Health Sciences, Harare, Zimbabwe. address@notprovi.ded. FAU - Mhandire, Doreen Zvipo AU - Mhandire DZ AD - University of Cape Town, Cape Town, South Africa. address@notprovi.ded. FAU - Musarurwa, Cuthbert AU - Musarurwa C AD - University of Zimbabwe College of Health Sciences, Harare, Zimbabwe. address@notprovi.ded. FAU - Duri, Kerina AU - Duri K AD - University of Zimbabwe College of Health Sciences, Harare, Zimbabwe. address@notprovi.ded. FAU - Matarira, Hilda Tendisa AU - Matarira HT AD - University of Zimbabwe College of Health Sciences, Harare, Zimbabwe. address@notprovi.ded. FAU - Dandara, Collet AU - Dandara C AD - University of Cape Town, Cape Town, South Africa. address@notprovi.ded. FAU - Rowland-Jones, Sarah L AU - Rowland-Jones SL AD - University of Oxford, Oxford, United Kingdom. sarah.rowland-jones@ndm.ox.ac.uk. FAU - Stray-Pedersen, Babill AU - Stray-Pedersen B AD - University Hospital, Oslo, Norway. babill.stray-pedersen@medisin.uio.no. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20181231 PL - Italy TA - J Infect Dev Ctries JT - Journal of infection in developing countries JID - 101305410 RN - 0 (HLA-C Antigens) RN - 0 (KIR2DL2 protein, human) RN - 0 (Receptors, KIR2DL2) SB - IM MH - Adult MH - Antiretroviral Therapy, Highly Active MH - CD4-Positive T-Lymphocytes/physiology/virology MH - Cross-Sectional Studies MH - Gene Frequency MH - HIV Infections/drug therapy/*genetics/*virology MH - HLA-C Antigens/*genetics MH - Humans MH - Polymorphism, Genetic MH - Receptors, KIR2DL2/*genetics MH - Viral Load MH - Zimbabwe OTO - NOTNLM OT - HIV OT - HLA OT - KIR OT - Zimbabweans OT - natural killer cells OT - viral load COIS- No Conflict of Interest is declared EDAT- 2018/12/31 00:00 MHDA- 2020/04/09 06:00 CRDT- 2020/02/07 06:00 PHST- 2018/09/10 00:00 [received] PHST- 2018/11/20 00:00 [accepted] PHST- 2020/02/07 06:00 [entrez] PHST- 2018/12/31 00:00 [pubmed] PHST- 2020/04/09 06:00 [medline] AID - 10.3855/jidc.10848 [doi] PST - epublish SO - J Infect Dev Ctries. 2018 Dec 31;12(12):1105-1111. doi: 10.3855/jidc.10848.