ArticleRetrovirology2015
In vitro activity of dolutegravir against wild-type and integrase inhibitor-resistant HIV-2.
Article in Retrovirology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Expanded Spectrum of Antiretroviral-Selected Mutations in Human Immunodeficiency Virus Type 2.The Journal of infectious diseases · 2020Pooled it
- Novel Dolutegravir and Lenacapavir Resistance Patterns in Human Immunodeficiency Virus Type 2 Infection: A Case Report.Open forum infectious diseases · 2025Article
- Article
- Clinical Outcomes of Integrase Strand Transfer Inhibitors Containing Antiretroviral Therapy in HIV-2: A Narrative Review.Infectious diseases and therapy · 2024Review
- Antiretroviral Treatment of HIV-2 Infection: Available Drugs, Resistance Pathways, and Promising New Compounds.International journal of molecular sciences · 2023Review
- Article
- High Instantaneous Inhibitory Potential of Bictegravir and the New Spiro-β-Lactam BSS-730A for HIV-2 Isolates from RAL-Naïve and RAL-Failing Patients.International journal of molecular sciences · 2022Article
- Spectrum of Activity of Raltegravir and Dolutegravir Against Novel Treatment-Associated Mutations in HIV-2 Integrase: A Phenotypic Analysis Using an Expanded Panel of Site-Directed Mutants.The Journal of infectious diseases · 2022Article
- HIV treatment in Guinea-Bissau: room for improvement and time for new treatment options.AIDS research and therapy · 2020Review
- Article
- Management of Virologic Failure and HIV Drug Resistance.Infectious disease clinics of North America · 2019Review
- Comparison of the Antiviral Activity of Bictegravir against HIV-1 and HIV-2 Isolates and Integrase Inhibitor-Resistant HIV-2 Mutants.Antimicrobial agents and chemotherapy · 2019Article
- Article
- MK-8591 (4'-Ethynyl-2-Fluoro-2'-Deoxyadenosine) Exhibits Potent Activity against HIV-2 Isolates and Drug-Resistant HIV-2 Mutants in Culture.Antimicrobial agents and chemotherapy · 2017Article
- Susceptibility of porcine endogenous retrovirus to anti-retroviral inhibitors.Xenotransplantation · 2016Article
- The Nucleoside Analog BMS-986001 Shows Greater In Vitro Activity against HIV-2 than against HIV-1.Antimicrobial agents and chemotherapy · 2015Article
- Implications for the future of the HIV epidemic if drug resistance against dolutegravir cannot occur in first-line therapy.Journal of the International AIDS Society · 2015Article
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Authors and funding
8 authors.
Funding
Abstract
backgroundDolutegravir recently became the third integrase strand transfer inhibitor (INSTI) approved for use in HIV-1-infected individuals. In contrast to the extensive dataset for HIV-1, in vitro studies and clinical reports of dolutegravir for HIV-2 are limited. To evaluate the potential role of dolutegravir in HIV-2 treatment, we compared the susceptibilities of wild-type and INSTI-resistant HIV-1 and HIV-2 strains to the drug using single-cycle assays, spreading infections of immortalized T cells, and site-directed mutagenesis.
findingsHIV-2 group A, HIV-2 group B, and HIV-1 isolates from INSTI-naïve individuals were comparably sensitive to dolutegravir in the single-cycle assay (mean EC50 values = 1.9, 2.6, and 1.3 nM, respectively). Integrase substitutions E92Q, Y143C, E92Q + Y143C, and Q148R conferred relatively low levels of resistance to dolutegravir in HIV-2ROD9 (2- to 6-fold), but Q148K, E92Q + N155H, T97A + N155H and G140S + Q148R resulted in moderate resistance (10- to 46-fold), and the combination of T97A + Y143C in HIV-2ROD9 conferred high-level resistance (>5000-fold). In contrast, HIV-1NL4-3 mutants E92Q + N155H, G140S + Q148R, and T97A + Y143C showed 2-fold, 4-fold, and no increase in EC50, respectively, relative to the parental strain. The resistance phenotypes for E92Q + N155H, and G140S + Q148R HIV-2ROD9 were also confirmed in spreading infections of CEM-ss cells.
conclusionsOur data support the use of dolutegravir in INSTI-naïve HIV-2 patients but suggest that, relative to HIV-1, a broader array of replacements in HIV-2 integrase may enable cross-resistance between dolutegravir and other INSTI. Clinical studies are needed to evaluate the efficacy of dolutegravir in HIV-2-infected individuals, including patients previously treated with raltegravir or elvitegravir.
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