HIV-1 transmitted drug resistance mutations among antiretroviral therapy-Naïve individuals in Surabaya, Indonesia

In 2009, a list of nonpolymorphic HIV-1 drug resistance mutations (DRMs), called surveillance DRMs (SDRMs), was created to monitor transmitted drug resistance (TDR). Since 2009, TDR increased and antiretroviral therapy (ART) practices changed. We examined the changing prevalence of SDRMs and identified candidate SDRMs defined as nonpolymorphic DRMs present on ≥ 1 expert DRM list and in ≥0.1% of ART-experienced persons. Candidate DRMs were further characterized according to their association with antiretrovirals and changing prevalence. Among NRTI-SDRMs, tenofovir-associated mutations increased in prevalence while thymidine analog mutations decreased in prevalence. Among candidate NRTI-SDRMs, there were six tenofovir-associated mutations including three which increased in prevalence (K65N, T69deletion, K70G/N/Q/T). Among candidate NNRTI-SDRMs, six that increased in prevalence were associated with rilpivirine (E138K/Q, V179L, H221Y) or doravirine (F227C/L) resistance. With the notable exceptions of I47A and I50L, most PI-SDRMs decreased in prevalence. Three candidate PI-SDRMs were accessory darunavir-resistance mutations (L10F, T74P, L89V). Adding the candidate SDRMs listed above was estimated to increase NRTI, NNRTI, and PI TDR prevalence by 0.1%, 0.3%, and 0.3%, respectively. We describe trends in the prevalence of nonpolymorphic HIV-1 DRMs in ART-experienced persons. These data should be considered in decisions regarding SDRM list updates and TDR monitoring.

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Major drug resistance mutations to HIV-1 protease inhibitors (PI) among patients exposed to PI class failing antiretroviral therapy in São Paulo State, Brazil

PLoS ONE ◽

10.1371/journal.pone.0223210 ◽

2019 ◽

Vol 14 (10) ◽

pp. e0223210

Author(s):

Giselle de Faria Romero Soldi ◽

Isadora Coutinho Ribeiro ◽

Cintia Mayumi Ahagon ◽

Luana Portes Ozório Coelho ◽

Gabriela Bastos Cabral ◽

...

Keyword(s):

Drug Resistance ◽

Antiretroviral Therapy ◽

Protease Inhibitors ◽

Sao Paulo ◽

Resistance Mutations ◽

Paulo State ◽

Drug Resistance Mutations ◽

São Paulo State ◽

Major Drug ◽

Hiv 1

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Late presentation and transmitted drug resistance mutations in new HIV-1 diagnoses in Detroit

International Journal of Infectious Diseases ◽

10.1016/j.ijid.2011.06.007 ◽

2011 ◽

Vol 15 (11) ◽

pp. e764-e768 ◽

Cited By ~ 10

Author(s):

Moises A. Huaman ◽

Javier Aguilar ◽

Dwayne Baxa ◽

Alicia Golembieski ◽

Indira Brar ◽

...

Keyword(s):

Drug Resistance ◽

Late Presentation ◽

Transmitted Drug Resistance ◽

Resistance Mutations ◽

Drug Resistance Mutations ◽

Hiv 1

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Diversity of HIV-1 subtypes and transmitted drug-resistance mutations among minority HIV-1 variants in a Turkish cohort

Current HIV Research ◽

10.2174/1570162x19666211119111740 ◽

2021 ◽

Vol 19 ◽

Author(s):

Rabia Can Sarinoglu ◽

Uluhan Sili ◽

Ufuk Hasdemir ◽

Burak Aksu ◽

Guner Soyletir ◽

...

Keyword(s):

Drug Resistance ◽

Reverse Transcriptase ◽

Transcriptase Inhibitor ◽

Transmitted Drug Resistance ◽

Resistance Mutations ◽

Drug Resistance Mutations ◽

Subtype B ◽

Treatment Naïve ◽

Reverse Transcriptase Inhibitor ◽

Hiv 1

Background: The World Health Organization (WHO) recommends the surveillance of transmitted drug resistance mutations (TDRMs) to ensure the effectiveness and sustainability of HIV treatment programs. Objective: Our aim was to determine the TDRMs and evaluate the distribution of HIV-1 subtypes using and compared next-generation sequencing (NGS) and Sanger-based sequencing (SBS) in a cohort of 44 antiretroviral treatment-naïve patients. Methods: All samples that were referred to the microbiology laboratory for HIV drug resistance analysis between December 2016 and February 2018 were included in the study. After exclusions, 44 treatment-naive adult patients with a viral load of >1000 copies/mL were analyzed. DNA sequencing for reverse transcriptase and protease regions was performed using both DeepChek ABL single round kit and Sanger-based ViroSeq HIV-1 Genotyping System. The mutations and HIV-1 subtypes were analyzed using the Stanford HIVdb version 8.6.1 Genotypic Resistance software, and TDRMs were assessed using the WHO surveillance drug-resistance mutation database. HIV-1 subtypes were confirmed by constructing a maximum-likelihood phylogenetic tree using Los Alamos IQ-Tree software. Results: NGS identified nucleos(t)ide reverse transcriptase inhibitor (NRTI)-TDRMs in 9.1% of the patients, non-nucleos(t)ide reverse transcriptase inhibitor (NNRTI)-TDRMs in 6.8% of the patients, and protease inhibitor (PI)-TDRMs in 18.2% of the patients at a detection threshold of ≥1%. Using SBS, 2.3% and 6.8% of the patients were found to have NRTI- and NNRTI-TDRMs, respectively, but no major PI mutations were detected. M41L, L74I, K65R, M184V, and M184I related to NRTI, K103N to NNRTI, and N83D, M46I, I84V, V82A, L24I, L90M, I54V to the PI sites were identified using NGS. Most mutations were found in low-abundance (frequency range: 1.0% - 4.7%) HIV-1 variants, except M41L and K103N. The subtypes of the isolates were found as follows; 61.4% subtype B, 18.2% subtype B/CRF02_AG recombinant, 13.6% subtype A, 4.5% CRF43_02G, and 2.3% CRF02_AG. All TDRMs, except K65R, were detected in HIV-1 subtype B isolates.. Conclusion: The high diversity of protease site TDRMs in the minority HIV-1 variants and prevalence of CRFs were remarkable in this study. All minority HIV-1 variants were missed by conventional sequencing. TDRM prevalence among minority variants appears to be decreasing over time at our center.

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Transmitted drug resistance mutations and subtype diversity among HIV-1 sero-positive voluntary blood donors in Accra, Ghana

10.21203/rs.3.rs-21810/v1 ◽

2020 ◽

Author(s):

Billal Musah Obeng ◽

Evelyn Yayra Bonney ◽

Lucy Asamoah-Akuoko ◽

Nicholas Israel Nii-Trebi ◽

Gifty Mawuli ◽

...

Keyword(s):

Drug Resistance ◽

Blood Donors ◽

Transmitted Drug Resistance ◽

Nucleotide Sequencing ◽

Plasma Samples ◽

Resistance Mutations ◽

Drug Resistance Mutations ◽

Subtype B ◽

Major Drug ◽

Hiv 1

Abstract Background: Detection of HIV-1 transmitted drug resistance (TDR) and subtype diversity (SD) are public health strategies to assess current HIV-1 regimen and ensure effective therapeutic outcomes of ART among HIV-1 patients. Globally, limited data exist on TDR and SD among blood donors. In this study, drug resistance mutations and subtype diversity among HIV-1 sero-positive blood donors in Accra, Ghana was characterized.Methods: Purposive sampling method was used to collect 81 HIV sero-positive blood samples from the Southern Area Blood Center and confirmed by serology as HIV-1 and/or HIV-2. Viral RNA was only extracted from plasma samples confirmed as HIV-1 positive. Complementary DNA (cDNA) was synthesized using the RNA as a template and subsequently amplified by nested PCR with specific primers. The expected products were verified, purified and sequenced. Neighbor-joining tree with the Kimura’s 2-parameter distances was generated with the RT sequences using Molecular Evolutionary Genetic Analysis version 6.0 (MEGA 6.0).Results: Out of the 81 plasma samples, 60 (74%) were confirmed as HIV-1 sero-positive by INNO-LIA HIVI/II Score kit with no HIV-2 and dual HIV-1/2 infections. The remaining samples, 21 (26%) were confirmed as HIV sero-negative. Of the 60 confirmed positive samples, (32) 53% and (28) 50% were successfully amplified in the RT and PR genes respectively. Nucleotide sequencing of amplified samples revealed the presence of major drug resistance mutations in two (2) samples; E138A in one sample and another with K65R. HIV-1 Subtypes including subtypes A, B, CRF02_AG and CRF09_cpx were found. Conclusion: This study found major drug resistance mutations, E138A and K65R in the RT gene that confer high level resistance to most NNRTIs and NRTI respectively. CRF02_AG was most predominant, the recorded percentage of subtype B and the evolutionary relationship inferred by phylogenetic analysis suggest possible subtype importation. The data obtained would inform the selection of drugs for ART initiation to maximize therapeutic options in drug-naïve HIV-1 patients in Ghana.

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