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• W3212536153 abstract "Combination antiretroviral treatment (cART) cannot eradicate HIV-1 from the body due to the establishment of persisting viral reservoirs which are not affected by therapy and reinitiate new rounds of HIV-1 replication after treatment interruption. These HIV-1 reservoirs mainly comprise long-lived resting memory CD4+ T cells and are established early after infection. There is a high variation in the size of these viral reservoirs among virally suppressed individuals. Identification of host factors that contribute to or can explain this observed variation could open avenues for new HIV-1 treatment strategies.In this study, we conducted a genome-wide quantitative trait locus (QTL) analysis to probe functionally relevant genetic variants linked to levels of cell-associated (CA) HIV-1 DNA, CA HIV-1 RNA, and RNA:DNA ratio in CD4+ T cells isolated from blood from a cohort of 207 (Caucasian) people living with HIV-1 (PLHIV) on long-term suppressive antiretroviral treatment (median = 6.6 years). CA HIV-1 DNA and CA HIV-1 RNA levels were measured with corresponding droplet digital PCR (ddPCR) assays, and genotype information of 522,455 single-nucleotide variants was retrieved via the Infinium Global Screening array platform.The analysis resulted in one significant association with CA HIV-1 DNA (rs2613996, P < 5 × 10-8) and two suggestive associations with RNA:DNA ratio (rs7113204 and rs7817589, P < 5 × 10-7). Then, we prioritized PTDSS2, IRF7, RNH1, and DEAF1 as potential HIV-1 reservoir modifiers and validated that higher expressions of IRF7 and RNH1 were accompanied by rs7113204-G. Moreover, RNA:DNA ratio, indicating relative HIV-1 transcription activity, was lower in PLHIV carrying this variant.The presented data suggests that the amount of CA HIV-1 DNA and RNA:DNA ratio can be influenced through PTDSS2, RNH1, and IRF7 that were anchored by our genome-wide association analysis. Further, these observations reveal potential host genetic factors affecting the size and transcriptional activity of HIV-1 reservoirs and could indicate new targets for HIV-1 therapeutic strategies." @default.
• W3212536153 created "2021-11-22" @default.
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• W3212536153 date "2021-11-16" @default.
• W3212536153 modified "2023-10-16" @default.
• W3212536153 title "IRF7 and RNH1 are modifying factors of HIV-1 reservoirs: a genome-wide association analysis" @default.
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• W3212536153 doi "https://doi.org/10.1186/s12916-021-02156-5" @default.
• W3212536153 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8594146" @default.
• W3212536153 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34781942" @default.
• W3212536153 hasPublicationYear "2021" @default.
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