Result: In this study,19 substitutions conferring major resistance to DTG at 10 amino acid positions in the IN (T66A/I/K, E92G, G118R, E138K/A/T, G140S/A/C, Y143R/C/H, S147G, Q148H/R/K, N155H, and R263K) were assessed to explore the genetic barrier to DTG.
Integrase Inhibitor Resistance Mechanisms and Structural Characteristics in Antiretroviral Therapy-Experienced, Integrase Inhibitor-Naive Adults with HIV-1 Infection Treated with Dolutegravir plus Two Nucleoside Reverse Transcriptase Inhibitors in the DAWNING Study.
PMID: 34694877
2022
Antimicrobial agents and chemotherapy
Table: S147G
Emergence of Resistance in HIV-1 Integrase with Dolutegravir Treatment in a Pediatric Population from the IMPAACT P1093 Study.
PMID: 34694878
2022
Antimicrobial agents and chemotherapy
Result: A subcluster of sequences containing E138T, S147G, and R263K showed greater evolutionary distance (bootstrap = 96%).
Result: Additional integrase substitutions accumulated at weeks 136 and 168, with genotyping results of E138A/E/K/T, S147G/S, and R263K and E138T, S147G, and R263K, respectively.
Table: S147G
Discussion: Both dolutegravir susceptibility and integrase replication capacity were further reduced in clones containing R263K and additional substitutions of
Brief Report: Bictegravir/Emtricitabine/Tenofovir Alafenamide Efficacy in Participants With Preexisting Primary Integrase Inhibitor Resistance Through 48 Weeks of Phase 3 Clinical Trials.
PMID: 34897227
2022
Journal of acquired immune deficiency syndromes (1999)
Discussion: In the 3 real-world cases, other INSTI-R substitutions were also noted, including L74I, E138K, S147G, and H51Y, along with M184V in RT.
Discussion: Successful virologic outcomes in the presence of select INSTI-R substitution patterns conferring predominantly RAL and/or EVG resistance are consistent with previous phenotypic analyses of clinical isolates demonstrating the activity of BIC against virus with primary INSTI-R substitutions, such as E92Q, Y143C/H, S147G, N155H, and PMID: 35240975
2022
Current HIV research
Abstract: Additional mutations, E92Q, E138K, G140A, S147G, and Q148R were found in elvitegravir; E192Q, E138K/T, G140A/S, S147G, Q148H/R, N155H, E157Q were found in dolutegravir (DTG) experienced patients.
Abstract: Major INSTI-mutations E138K, Y143R, S147G, Q148R, N155H, and E157Q were found in raltegrav
Could Long-Acting Cabotegravir-Rilpivirine Be the Future for All People Living with HIV? Response Based on Genotype Resistance Test from a Multicenter Italian Cohort.
PMID: 35207677
2022
Journal of personalized medicine
Method: We also excluded PWH with the following INSTI mutations: T66I, E92Q, G118R, G140S, Y143A/C/G/H/K/R/S, S147G, Q148H/K/N/R, N155H/S/T, and R263K.
Increased acquired protease inhibitor drug resistance mutations in minor HIV-1 quasispecies from infected patients suspected of failing on national second-line therapy in South Africa.
Discussion: Previous studies on HIV-1C have shown major INI mutations at baseline in less than 5% of patients from Ethiopia (T66I, E138K, Q148R, and Q148H) and South Africa (Q148H, T66S, E92G, S147G, T66A, Y143YF and Y143H).
Virological response and resistance profile in highly treatment-experienced HIV-1-infected patients switching to dolutegravir plus boosted darunavir in clinical practice.
Abstract: Among 13 non-responding patients for whom a genotypic resistance test result at failure was available, only two (15.4%) accumulated further resistance in integrase (Y143C/H/R; S147G and N155H) and protease (V32I, L33F, I54L).
Transmitted HIV-1 drug resistance in a large international cohort using next-generation sequencing: results from the Strategic Timing of Antiretroviral Treatment (START) study.
Method: INSTI mutations, which are not included on this list, were defined as those on the Stanford HIVdb surveillance DRM list, namely T66AIK, E92Q, F121Y, G140ACS, Y143CHR, S147G, Q148HKR and N155HS.
HIV-1 Subtype C Drug Resistance Mutations in Heavily Treated Patients Failing Integrase Strand Transfer Inhibitor-Based Regimens in Botswana.
Method: The mutations of interest included: T66A/I/K, E92Q, G118R, E138K/A/T, G140S/A/C, Y143R/C/H, S147G, Q148H/R/K, N155H and R263K.
Discussion: Comparable with others, amongst individuals with prior exposure to RAL, the most common mutations selected were N155H (n = 4), Q148R (n = 4), S147G (n = 4) and E138K (n = 3) as others have similarly found.
ViMRT
HIV mutation literature information.
PMID: 
2022
Viruses
