Siti Qamariyah Khairunisa, Siti Qamariyah Khairunisa and Ni Luh Ayu Megasari, Ni Luh Ayu Megasari and Dwi Wahyu Indriati, Dwi Wahyu Indriati and Tomohiro Kotaki, Tomohiro Kotaki and Diana Natalia, Diana Natalia and Nasronudin6, Nasronudin and Masanori Kameoka, Masanori Kameoka (2020) Identification of HIV-1 subtypes and drug resistance mutations among HIV-1 infected individuals residing in Pontianak, Indonesia. GERMS, 10 (3). ISSN 2248-2997

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Abstract

Introduction The present study investigated the HIV-1 subtype classification in addition to prevalence of drug resistance mutations (DRMs) in antiretroviral therapy (ART)-experienced and ARTnaïve residents of Pontianak, West Kalimantan, Indonesia. Methods Whole blood samples collected from 30 HIV-1-infected individuals, comprising 19 ARTexperienced and 11 ART-naïve individuals, were subjected to RNA and DNA extraction, followed by HIV-1 genes amplification and sequencing analysis. HIV-1 subtyping was classified on viral pol genes encoding reverse transcriptase (RT gene) and protease (PR gene) accompanied by the env and gag genes. DRMs in the RT and PR genes were also analyzed. Results CRF01_AE was identified as the predominant circulating recombinant form (CRF) of HIV-1 in both ART-experienced and ART-naïve individuals. In addition, CRF02_AG, subtype B, recombinant virus expressing CRF01_AE and subtype B viral genomic fragments, also recombinant virus containing CRF01_AE and CRF02_AG genomic fragments were also identified. Acquired drug resistance (ADR) was identified in 28.5% of ART-experienced individuals, while no transmitted drug resistance was identified in ART-naïve individuals. Conclusions This study identified CRF01_AE as the most predominant HIV-1 CRF distributing in Pontianak, Indonesia. The prevalence of ADR is considered to be high; thus, further surveillance is needed in this region.

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