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Załęski A, Lembas A, Dyda T, Siwak E, Osińska J, Suchacz M, Stempkowska-Rejek J, Strycharz M, Orzechowska J, Wiercińska-Drapało A. Changes in Primary HIV-1 Drug Resistance Due to War Migration from Eastern Europe. J Immigr Minor Health 2024; 26:15-22. [PMID: 37973713 PMCID: PMC10771373 DOI: 10.1007/s10903-023-01559-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2023] [Indexed: 11/19/2023]
Abstract
In recent years, especially as a result of war in Ukraine, enormous movements of migration to Poland from eastern European countries have been reported, including people living with Human Immunodeficiency Virus (HIV). We have conducted multi-center, prospective study, which aimed to establish HIV-1 subtype and assess the presence of primary drug resistance mutations to nucleoside reverse transcriptase inhibitors, non-nucleoside reverse transcriptase inhibitors and protease inhibitors in antiretroviral treatment naïve patients. The clinical trial recruited 117 individuals during 2 years period (2020-2022). The prevalence of HIV-1 subtype A was statistically significantly more frequent in Ukrainian, and HIV-1 subtype B in Polish patients (p < 0.05). Drug resistance mutations were detected in 44% of all cases and the comparison of presence of mutations in the analyzed groups, as well as in the subgroups of subtype A and B HIV-1 has not revealed any significant differences (p > 0.05), nevertheless Polish patients had multidrug resistance mutations more frequent (p < 0.05). The results from our trial show no increased risk of transmission of multidrug resistant HIV strains in our cohort of Ukrainian migrants.Clinical trials. Gov number NCT04636736; date of registration: November 19, 2020.
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Affiliation(s)
- Andrzej Załęski
- Hospital for Infectious Diseases in Warsaw, Warsaw, Poland
- Department of Infectious Diseases, Tropical Diseases and Hepatology, Medical University of Warsaw, Warsaw, Poland
| | - Agnieszka Lembas
- Hospital for Infectious Diseases in Warsaw, Warsaw, Poland.
- Department of Infectious Diseases, Tropical Diseases and Hepatology, Medical University of Warsaw, Warsaw, Poland.
| | - Tomasz Dyda
- Hospital for Infectious Diseases in Warsaw, Warsaw, Poland
- Molecular Diagnostics Laboratory, Hospital for Infectious Diseases in Warsaw, Warsaw, Poland
| | - Ewa Siwak
- Hospital for Infectious Diseases in Warsaw, Warsaw, Poland
- Department of Infectious Diseases, Tropical Diseases and Hepatology, Medical University of Warsaw, Warsaw, Poland
- HIV Out-Patient Clinic, Hospital for Infectious Diseases in Warsaw, Warsaw, Poland
| | - Joanna Osińska
- Infectious Diseases Clinical Ward in Ostróda, Department of Family Medicine and Infectious Diseases, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Magdalena Suchacz
- Hospital for Infectious Diseases in Warsaw, Warsaw, Poland
- Department of Infectious Diseases, Tropical Diseases and Hepatology, Medical University of Warsaw, Warsaw, Poland
| | | | - Marta Strycharz
- Clinical Department of Infectious Diseases and Hepatology, Medical University of Lodz, Lodz, Poland
| | - Justyna Orzechowska
- Clinical Department of Infectious Diseases, College of Medical Sciences, Medical Center in Łańcut, University of Rzeszów, Rzeszów, Poland
| | - Alicja Wiercińska-Drapało
- Hospital for Infectious Diseases in Warsaw, Warsaw, Poland
- Department of Infectious Diseases, Tropical Diseases and Hepatology, Medical University of Warsaw, Warsaw, Poland
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2
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Antonova A, Kazennova E, Lebedev A, Ozhmegova E, Kuznetsova A, Tumanov A, Bobkova M. Recombinant Forms of HIV-1 in the Last Decade of the Epidemic in the Russian Federation. Viruses 2023; 15:2312. [PMID: 38140553 PMCID: PMC10748268 DOI: 10.3390/v15122312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Currently, HIV-1 displays a substantial level of genetic diversity on a global scale, partly attributed to its recombinant variants. This study seeks to identify and analyze HIV-1 recombinants in Russia during the last decade of the epidemic. A comprehensive examination was conducted, encompassing 3178 partial pol sequences. Subtyping was achieved through various programs including COMET, the Stanford Database, REGA, jpHMM, RIP, and RDP4 for recombination analysis. The study also involved phylogenetic analysis to trace the origins of the identified recombinants. Primary resistance (PrimDR) prevalence and Drug Resistance Mutations (DRMs) were assessed. The study uncovered an overall proportion of recombinants at 8.7%, with a statistically significant increase in their frequency observed over time (p < 0.001). The Northwestern (18.5%) and Siberian (15.0%) Federal Districts exhibited a high prevalence of recombinants, while the Volga (1.9%) and Ural (2.8%) Federal Districts had a lower prevalence. Among HIV-1 recombinants, a PrimDR prevalence of 11.4% was identified. Notably, significant differences in DRMs were observed, with a higher prevalence of M184V in sub-subtype A6 (p = 0.018) and K103N in CRF63_02A6 (p = 0.002). These findings underscore the increasing HIV-1 genetic diversity and highlight a substantial prevalence of PrimDR among its recombinant forms, emphasizing the necessity for ongoing systematic monitoring.
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Affiliation(s)
- Anastasiia Antonova
- The National Research Center for Epidemiology and Microbiology Named after Honorary Academician N.F. Gamaleya of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.K.); (A.L.); (E.O.); (A.K.); (A.T.)
| | - Elena Kazennova
- The National Research Center for Epidemiology and Microbiology Named after Honorary Academician N.F. Gamaleya of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.K.); (A.L.); (E.O.); (A.K.); (A.T.)
| | - Aleksey Lebedev
- The National Research Center for Epidemiology and Microbiology Named after Honorary Academician N.F. Gamaleya of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.K.); (A.L.); (E.O.); (A.K.); (A.T.)
| | - Ekaterina Ozhmegova
- The National Research Center for Epidemiology and Microbiology Named after Honorary Academician N.F. Gamaleya of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.K.); (A.L.); (E.O.); (A.K.); (A.T.)
| | - Anna Kuznetsova
- The National Research Center for Epidemiology and Microbiology Named after Honorary Academician N.F. Gamaleya of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.K.); (A.L.); (E.O.); (A.K.); (A.T.)
| | - Aleksandr Tumanov
- The National Research Center for Epidemiology and Microbiology Named after Honorary Academician N.F. Gamaleya of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.K.); (A.L.); (E.O.); (A.K.); (A.T.)
| | - Marina Bobkova
- I. Mechnikov Research Institute for Vaccines and Sera, 105064 Moscow, Russia;
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Pujol-Hodge E, Salazar-Gonzalez JF, Ssemwanga D, Charlebois ED, Ayieko J, Grant HE, Liegler T, Atkins KE, Kaleebu P, Kamya MR, Petersen M, Havlir DV, Leigh Brown AJ. Detection of HIV-1 Transmission Clusters from Dried Blood Spots within a Universal Test-and-Treat Trial in East Africa. Viruses 2022; 14:1673. [PMID: 36016295 PMCID: PMC9414799 DOI: 10.3390/v14081673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/15/2022] [Accepted: 07/25/2022] [Indexed: 11/24/2022] Open
Abstract
The Sustainable East Africa Research in Community Health (SEARCH) trial was a universal test-and-treat (UTT) trial in rural Uganda and Kenya, aiming to lower regional HIV-1 incidence. Here, we quantify breakthrough HIV-1 transmissions occurring during the trial from population-based, dried blood spot samples. Between 2013 and 2017, we obtained 549 gag and 488 pol HIV-1 consensus sequences from 745 participants: 469 participants infected prior to trial commencement and 276 SEARCH-incident infections. Putative transmission clusters, with a 1.5% pairwise genetic distance threshold, were inferred from maximum likelihood phylogenies; clusters arising after the start of SEARCH were identified with Bayesian time-calibrated phylogenies. Our phylodynamic approach identified nine clusters arising after the SEARCH start date: eight pairs and one triplet, representing mostly opposite-gender linked (6/9), within-community transmissions (7/9). Two clusters contained individuals with non-nucleoside reverse transcriptase inhibitor (NNRTI) resistance, both linked to intervention communities. The identification of SEARCH-incident, within-community transmissions reveals the role of unsuppressed individuals in sustaining the epidemic in both arms of a UTT trial setting. The presence of transmitted NNRTI resistance, implying treatment failure to the efavirenz-based antiretroviral therapy (ART) used during SEARCH, highlights the need to improve delivery and adherence to up-to-date ART recommendations, to halt HIV-1 transmission.
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Affiliation(s)
- Emma Pujol-Hodge
- Ashworth Laboratories, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FL, UK; (E.P.-H.); (H.E.G.)
| | - Jesus F. Salazar-Gonzalez
- Medical Research Council (MRC)/Uganda Virus Research Institute (UVRI) and London School of Hygiene and Tropical Medicine (LSHTM) Uganda Research Unit, Entebbe P.O. Box 49, Uganda; (J.F.S.-G.); (D.S.); (P.K.)
| | - Deogratius Ssemwanga
- Medical Research Council (MRC)/Uganda Virus Research Institute (UVRI) and London School of Hygiene and Tropical Medicine (LSHTM) Uganda Research Unit, Entebbe P.O. Box 49, Uganda; (J.F.S.-G.); (D.S.); (P.K.)
- Uganda Virus Research Institute, Entebbe P.O. Box 49, Uganda
| | - Edwin D. Charlebois
- Division of Prevention Science, Department of Medicine, University of California, San Francisco, CA 94158, USA;
| | - James Ayieko
- Kenya Medical Research Institute, Nairobi P.O. Box 54840-00200, Kenya;
| | - Heather E. Grant
- Ashworth Laboratories, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FL, UK; (E.P.-H.); (H.E.G.)
| | - Teri Liegler
- Division of HIV, Infectious Diseases and Global Medicine, Department of Medicine, University of California, San Francisco, CA 94110, USA; (T.L.); (D.V.H.)
| | - Katherine E. Atkins
- Usher Institute, University of Edinburgh, Edinburgh EH8 9AG, UK;
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, LSHTM, London WC1E 7HT, UK
- Centre for Mathematical Modelling of Infectious Diseases, LSHTM, London WC1E 7HT, UK
| | - Pontiano Kaleebu
- Medical Research Council (MRC)/Uganda Virus Research Institute (UVRI) and London School of Hygiene and Tropical Medicine (LSHTM) Uganda Research Unit, Entebbe P.O. Box 49, Uganda; (J.F.S.-G.); (D.S.); (P.K.)
- Uganda Virus Research Institute, Entebbe P.O. Box 49, Uganda
| | - Moses R. Kamya
- School of Medicine, Makerere University, Kampala P.O. Box 7072, Uganda;
| | - Maya Petersen
- Division of Biostatistics, School of Public Health, University of California, Berkeley, CA 94720, USA;
| | - Diane V. Havlir
- Division of HIV, Infectious Diseases and Global Medicine, Department of Medicine, University of California, San Francisco, CA 94110, USA; (T.L.); (D.V.H.)
| | - Andrew J. Leigh Brown
- Ashworth Laboratories, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FL, UK; (E.P.-H.); (H.E.G.)
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Troyano-Hernáez P, Reinosa R, Holguín A. Genetic Diversity and Low Therapeutic Impact of Variant-Specific Markers in HIV-1 Pol Proteins. Front Microbiol 2022; 13:866705. [PMID: 35910645 PMCID: PMC9330395 DOI: 10.3389/fmicb.2022.866705] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 06/06/2022] [Indexed: 11/13/2022] Open
Abstract
The emergence and spread of new HIV-1 variants pose a challenge for the effectiveness of antiretrovirals (ARV) targeting Pol proteins. During viral evolution, non-synonymous mutations have fixed along the viral genome, leading to amino acid (aa) changes that can be variant-specific (V-markers). Those V-markers fixed in positions associated with drug resistance mutations (DRM), or R-markers, can impact drug susceptibility and resistance pathways. All available HIV-1 Pol sequences from ARV-naïve subjects were downloaded from the United States Los Alamos HIV Sequence Database, selecting 59,733 protease (PR), 6,437 retrotranscriptase (RT), and 6,059 integrase (IN) complete sequences ascribed to the four HIV-1 groups and group M subtypes and circulating recombinant forms (CRFs). Using a bioinformatics tool developed in our laboratory (EpiMolBio), we inferred the consensus sequences for each Pol protein and HIV-1 variant to analyze the aa conservation in Pol. We analyzed the Wu–Kabat protein variability coefficient (WK) in PR, RT, and IN group M to study the susceptibility of each site to evolutionary replacements. We identified as V-markers the variant-specific aa changes present in >75% of the sequences in variants with >5 available sequences, considering R-markers those V-markers that corresponded to DRM according to the IAS-USA2019 and Stanford-Database 9.0. The mean aa conservation of HIV-1 and group M consensus was 82.60%/93.11% in PR, 88.81%/94.07% in RT, and 90.98%/96.02% in IN. The median group M WK was 10 in PR, 4 in RT, and 5 in IN. The residues involved in binding or catalytic sites showed a variability <0.5%. We identified 106 V-markers: 31 in PR, 28 in RT, and 47 in IN, present in 11, 12, and 13 variants, respectively. Among them, eight (7.5%) were R-markers, present in five variants, being minor DRM with little potential effect on ARV susceptibility. We present a thorough analysis of Pol variability among all HIV-1 variants circulating to date. The relatively high aa conservation observed in Pol proteins across HIV-1 variants highlights their critical role in the viral cycle. However, further studies are needed to understand the V-markers’ impact on the Pol proteins structure, viral cycle, or treatment strategies, and periodic variability surveillance studies are also required to understand PR, RT, and IN evolution.
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Ismail SD, Pankrac J, Ndashimye E, Prodger JL, Abrahams MR, Mann JFS, Redd AD, Arts EJ. Addressing an HIV cure in LMIC. Retrovirology 2021; 18:21. [PMID: 34344423 PMCID: PMC8330180 DOI: 10.1186/s12977-021-00565-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/19/2021] [Indexed: 12/15/2022] Open
Abstract
HIV-1 persists in infected individuals despite years of antiretroviral therapy (ART), due to the formation of a stable and long-lived latent viral reservoir. Early ART can reduce the latent reservoir and is associated with post-treatment control in people living with HIV (PLWH). However, even in post-treatment controllers, ART cessation after a period of time inevitably results in rebound of plasma viraemia, thus lifelong treatment for viral suppression is indicated. Due to the difficulties of sustained life-long treatment in the millions of PLWH worldwide, a cure is undeniably necessary. This requires an in-depth understanding of reservoir formation and dynamics. Differences exist in treatment guidelines and accessibility to treatment as well as social stigma between low- and-middle income countries (LMICs) and high-income countries. In addition, demographic differences exist in PLWH from different geographical regions such as infecting viral subtype and host genetics, which can contribute to differences in the viral reservoir between different populations. Here, we review topics relevant to HIV-1 cure research in LMICs, with a focus on sub-Saharan Africa, the region of the world bearing the greatest burden of HIV-1. We present a summary of ART in LMICs, highlighting challenges that may be experienced in implementing a HIV-1 cure therapeutic. Furthermore, we discuss current research on the HIV-1 latent reservoir in different populations, highlighting research in LMIC and gaps in the research that may facilitate a global cure. Finally, we discuss current experimental cure strategies in the context of their potential application in LMICs.
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Affiliation(s)
- Sherazaan D Ismail
- Division of Medical Virology, Department of Pathology, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, 7925, South Africa
| | - Joshua Pankrac
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A5C1, Canada
| | - Emmanuel Ndashimye
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A5C1, Canada
- Center for AIDS Research Uganda Laboratories, Joint Clinical Research Centre, Kampala, Uganda
| | - Jessica L Prodger
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A5C1, Canada
- Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Melissa-Rose Abrahams
- Division of Medical Virology, Department of Pathology, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, 7925, South Africa
| | - Jamie F S Mann
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A5C1, Canada
- Bristol Veterinary School, University of Bristol, Langford House, Langford, Bristol, BS40 5DU, UK
| | - Andrew D Redd
- Division of Medical Virology, Department of Pathology, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, 7925, South Africa
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Laboratory of Immunoregulation, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD, USA
| | - Eric J Arts
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A5C1, Canada.
- Division of Infectious Diseases, Department of Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA.
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Bruser G, Katasi R, Zhang LZ, Namasinga M, Arts E, Kityo C, Luginaah I. Failure is not an option: Barriers to HIV treatment adherence in Kampala, Uganda. Health Place 2020; 67:102481. [PMID: 33276263 PMCID: PMC10103613 DOI: 10.1016/j.healthplace.2020.102481] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 11/06/2020] [Accepted: 11/11/2020] [Indexed: 10/22/2022]
Abstract
This study seeks to investigate challenges to combined antiretroviral therapy (cART) treatment adherence and treatment outcomes in Kampala, Uganda. Data was collected from a survey administered to two cohorts of patients with human immunodeficiency virus type 1 (HIV-1) receiving care and cART from the Joint Clinical Research Center (JCRC) in Kampala. Cohort I consisted of 93 individuals successfully treated on cART for a period of three years, while Cohort II consisted of 56 individuals who have experienced treatment failure with first-line cART within two years. We hypothesize that distance to the treatment facility would be a predictor of poor adherence and thus treatment failure. However, results suggested otherwise, whereby participants living more than 2 h away from their treatment facility were actually less likely to miss their daily dose of cART (OR = 0.33, p < .05), compared to those living in proximity to the treatment center. Further, high-income employment (OR = 3.82, p < .05) and partnered relationship status (OR = 4.28, p < .05) were predicted to increase the probability of missing doses. These findings may be explained by the deep-seated stigma which has remained pervasive in the lives of HIV-positive population in Kampala, even 30 years after the peak of the HIV/AIDS epidemic.
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Affiliation(s)
- Gabrielle Bruser
- Department of Geography, Western University, Social Science Centre, 1151 Richmond St, London, Ontario, N6A 5C2, Canada.
| | - Ritah Katasi
- Joint Clinical Research Center, Lubowa Hill, Plot 101 Entebbe Road P. O. Box 10005, Wakiso District, Uganda.
| | - Lily Ziyue Zhang
- Global Health Systems, Western University, Schulich Medicine & Dentistry, 1151 Richmond St, London, Ontario, N6A 5C1, Canada.
| | - Miriam Namasinga
- Joint Clinical Research Center, Lubowa Hill, Plot 101 Entebbe Road P. O. Box 10005, Wakiso District, Uganda.
| | - Eric Arts
- Department of Microbiology & Immunology, Western University, Dental Science Building, 1151 Richmond St, London, Ontario, N6A 5C1, Canada.
| | - Cissy Kityo
- Joint Clinical Research Center, Lubowa Hill, Plot 101 Entebbe Road P. O. Box 10005, Wakiso District, Uganda.
| | - Isaac Luginaah
- Department of Geography, Western University, Social Science Centre, 1151 Richmond St, London, Ontario, N6A 5C2, Canada.
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Sun Z, Ouyang J, Zhao B, An M, Wang L, Ding H, Han X. Natural polymorphisms in HIV-1 CRF01_AE strain and profile of acquired drug resistance mutations in a long-term combination treatment cohort in northeastern China. BMC Infect Dis 2020; 20:178. [PMID: 32102660 PMCID: PMC7045473 DOI: 10.1186/s12879-020-4808-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 01/21/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The impacts of genetic polymorphisms on drug resistance mutations (DRMs) among various HIV-1 subtypes have long been debated. In this study, we aimed to analyze the natural polymorphisms and acquired DRM profile in HIV-1 CRF01_AE-infected patients in a large first-line antiretroviral therapy (ART) cohort in northeastern China. METHODS The natural polymorphisms of CRF01_AE were analyzed in 2034 patients from a long-term ART cohort in northeastern China. The polymorphisms in 105 treatment failure (TF) patients were compared with those in 1148 treatment success (TS) patients. The acquired DRM profile of 42 patients who experienced TF with tenofovir/lamivudine/efavirenz (TDF/3TC/EFV) treatment was analyzed by comparing the mutations at TF time point to those at baseline. The Stanford HIVdb algorithm was used to interpret the DRMs. Binomial distribution, McNemar test, Wilcoxon test and CorMut package were used to analyze the mutation rates and co-variation. Deep sequencing was used to analyze the evolutionary dynamics of co-variation. RESULTS Before ART, there were significantly more natural polymorphisms of 31 sites on reverse transcriptase (RT) in CRF01_AE than subtype B HIV-1 (|Z value| ≥ 3), including five known drug resistance-associated sites (238, 118, 179, 103, and 40). However, only the polymorphism at site 75 was associated with TF (|Z value| ≥ 3). The mutation rate at 14 sites increased significantly at TF time point compared to baseline, with the most common DRMs comprising G190S/C, K65R, K101E/N/Q, M184 V/I, and V179D/I/A/T/E, ranging from 66.7 to 45.2%. Moreover, two unknown mutations (V75 L and L228R) increased by 19.0 and 11.9% respectively, and they were under positive selection (Ka/Ks > 1, log odds ratio [LOD] > 2) and were associated with several other DRMs (cKa/Ks > 1, LOD > 2). Deep sequencing of longitudinal plasma samples showed that L228R occurred simultaneously or followed the appearance of Y181C. CONCLUSION The high levels of natural polymorphisms in CRF01_AE had little impact on treatment outcomes. The findings regarding potential new CRF01_AE-specific minor DRMs indicate the need for more studies on the drug resistance phenotype of CRF01_AE.
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Affiliation(s)
- Zesong Sun
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China
| | - Jinming Ouyang
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Bin Zhao
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China
| | - Minghui An
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China
| | - Lin Wang
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China
| | - Haibo Ding
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China
| | - Xiaoxu Han
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China. .,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China. .,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China. .,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China.
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