HIV-1 Low-Frequency Variants Identified in Antiretroviral-Naïve Subjects with Virologic Failure after 12 Months of Follow-Up in Panama

Low-frequency mutations associated with drug resistance have been related to virologic failure in subjects with no history of pre-treatment and recent HIV diagnosis. In total, 78 antiretroviral treatment (ART)-naïve subjects with a recent HIV diagnosis were selected and followed by CD4+ T lymphocyte...

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Main Authors: Ambar Moreno, Claudia González, Jessica Góndola, Oris Chavarría, Alma Ortiz, Jorge Castillo, Juan Castillo Mewa, Juan Miguel Pascale, Alexander Augusto Martínez
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Infectious Disease Reports
Subjects:
Online Access:https://www.mdpi.com/2036-7449/15/4/44
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author Ambar Moreno
Claudia González
Jessica Góndola
Oris Chavarría
Alma Ortiz
Jorge Castillo
Juan Castillo Mewa
Juan Miguel Pascale
Alexander Augusto Martínez
author_facet Ambar Moreno
Claudia González
Jessica Góndola
Oris Chavarría
Alma Ortiz
Jorge Castillo
Juan Castillo Mewa
Juan Miguel Pascale
Alexander Augusto Martínez
author_sort Ambar Moreno
collection DOAJ
description Low-frequency mutations associated with drug resistance have been related to virologic failure in subjects with no history of pre-treatment and recent HIV diagnosis. In total, 78 antiretroviral treatment (ART)-naïve subjects with a recent HIV diagnosis were selected and followed by CD4+ T lymphocytes and viral load tests to detect virologic failure. We sequenced the basal samples retrospectively using next-generation sequencing (NGS), looking for low-frequency mutations that had not been detected before using the Sanger sequencing method (SSM) and describing the response to ART. Twenty-two subjects developed virologic failure (VF), and thirteen of them had at least one drug-resistance mutation associated with Reverse Transcriptase Inhibitors (RTI) and Protease Inhibitors (PIs) at frequency levels ≤ 1%, not detected previously in their basal genotyping test. No resistance mutations were observed to Integrase Strand Transfer Inhibitors (INSTIs). We identified a possible cause of VF in ART-naïve subjects with low-frequency mutations detected. To our knowledge, this is the first evaluation of pre-existing drug resistance for HIV-1 minority variants carried out on ART-naïve people living with HIV/AIDS (PLWHA) by analyzing the HIV-1 <i>pol</i> gene using NGS in the country.
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spelling doaj.art-fea2d72742514cb0a9dba384ecbc2f852023-11-19T01:23:24ZengMDPI AGInfectious Disease Reports2036-74492023-08-0115443644410.3390/idr15040044HIV-1 Low-Frequency Variants Identified in Antiretroviral-Naïve Subjects with Virologic Failure after 12 Months of Follow-Up in PanamaAmbar Moreno0Claudia González1Jessica Góndola2Oris Chavarría3Alma Ortiz4Jorge Castillo5Juan Castillo Mewa6Juan Miguel Pascale7Alexander Augusto Martínez8Department of Research in Genomics and Proteomics, Gorgas Memorial Institute for Health Studies, Panama City 0816-02593, PanamaDepartment of Research in Genomics and Proteomics, Gorgas Memorial Institute for Health Studies, Panama City 0816-02593, PanamaDepartment of Research in Genomics and Proteomics, Gorgas Memorial Institute for Health Studies, Panama City 0816-02593, PanamaDepartment of Research in Genomics and Proteomics, Gorgas Memorial Institute for Health Studies, Panama City 0816-02593, PanamaDepartment of Research in Genomics and Proteomics, Gorgas Memorial Institute for Health Studies, Panama City 0816-02593, PanamaDepartment of Research in Genomics and Proteomics, Gorgas Memorial Institute for Health Studies, Panama City 0816-02593, PanamaDepartment of Research in Genomics and Proteomics, Gorgas Memorial Institute for Health Studies, Panama City 0816-02593, PanamaDepartment of Research in Genomics and Proteomics, Gorgas Memorial Institute for Health Studies, Panama City 0816-02593, PanamaDepartment of Research in Genomics and Proteomics, Gorgas Memorial Institute for Health Studies, Panama City 0816-02593, PanamaLow-frequency mutations associated with drug resistance have been related to virologic failure in subjects with no history of pre-treatment and recent HIV diagnosis. In total, 78 antiretroviral treatment (ART)-naïve subjects with a recent HIV diagnosis were selected and followed by CD4+ T lymphocytes and viral load tests to detect virologic failure. We sequenced the basal samples retrospectively using next-generation sequencing (NGS), looking for low-frequency mutations that had not been detected before using the Sanger sequencing method (SSM) and describing the response to ART. Twenty-two subjects developed virologic failure (VF), and thirteen of them had at least one drug-resistance mutation associated with Reverse Transcriptase Inhibitors (RTI) and Protease Inhibitors (PIs) at frequency levels ≤ 1%, not detected previously in their basal genotyping test. No resistance mutations were observed to Integrase Strand Transfer Inhibitors (INSTIs). We identified a possible cause of VF in ART-naïve subjects with low-frequency mutations detected. To our knowledge, this is the first evaluation of pre-existing drug resistance for HIV-1 minority variants carried out on ART-naïve people living with HIV/AIDS (PLWHA) by analyzing the HIV-1 <i>pol</i> gene using NGS in the country.https://www.mdpi.com/2036-7449/15/4/44HIV-1low-frequency variantsvirologic failurenext-generation sequencingdrug resistancePanama
spellingShingle Ambar Moreno
Claudia González
Jessica Góndola
Oris Chavarría
Alma Ortiz
Jorge Castillo
Juan Castillo Mewa
Juan Miguel Pascale
Alexander Augusto Martínez
HIV-1 Low-Frequency Variants Identified in Antiretroviral-Naïve Subjects with Virologic Failure after 12 Months of Follow-Up in Panama
Infectious Disease Reports
HIV-1
low-frequency variants
virologic failure
next-generation sequencing
drug resistance
Panama
title HIV-1 Low-Frequency Variants Identified in Antiretroviral-Naïve Subjects with Virologic Failure after 12 Months of Follow-Up in Panama
title_full HIV-1 Low-Frequency Variants Identified in Antiretroviral-Naïve Subjects with Virologic Failure after 12 Months of Follow-Up in Panama
title_fullStr HIV-1 Low-Frequency Variants Identified in Antiretroviral-Naïve Subjects with Virologic Failure after 12 Months of Follow-Up in Panama
title_full_unstemmed HIV-1 Low-Frequency Variants Identified in Antiretroviral-Naïve Subjects with Virologic Failure after 12 Months of Follow-Up in Panama
title_short HIV-1 Low-Frequency Variants Identified in Antiretroviral-Naïve Subjects with Virologic Failure after 12 Months of Follow-Up in Panama
title_sort hiv 1 low frequency variants identified in antiretroviral naive subjects with virologic failure after 12 months of follow up in panama
topic HIV-1
low-frequency variants
virologic failure
next-generation sequencing
drug resistance
Panama
url https://www.mdpi.com/2036-7449/15/4/44
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