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- W2914704192 abstract "BackgroundA wide range of host restriction factors (RF) become upregulated upon HIV-1 infection to suppress viral infectivity and may aid viremic control in vivo. This cross-sectional study evaluated HIV-1 RFs and dependency factors in HIV infected individuals with progressive or non-progressive infection, as well as in early and late treated cohorts that exhibit different viro-immunological profiles due to differences in timing of treatment-initiation.MethodsThe expression profile of IFIT1, MX1, APOBEC3G, SAMHD1, BST2 (encoding TETHERIN), TRIM5, MX2, SLFN11, PAF1, PSIP1 (encoding LEDGF/p75), and NLRX1 was measured by qPCR in 104 HIV-1 positive individuals: seroconverters (SRCV; n = 19), long term non-progressors (LTNP; n = 17), viremic progressors (VP; n = 12), patients treated during seroconversion (Early treated; n = 24) or chronic infection (Late treated; n = 32), and non-infected controls.FindingsExpression levels of early treated HIV-1 positive individuals were significantly upregulated in comparison to late treated patients (IFIT1: p = 0·0003; MX1: p = 0·008; APOBEC3G: p = 0·002; SAMHD1: p = 0·0008; SLFN11: p < 0·0001; BST2: p < 0·0001). Similarly, SLFN11, BST2, and SAMHD1 were highly expressed in LTNPs at comparable levels as in early treated HIV-1 positive individuals. Furthermore, SLFN11 and SAMHD1 expression negatively correlated with total and integrated HIV-1 DNA levels.InterpretationEarly treatment initiation maintains initial RF elevation even after a decade of ART. Elevated expression of SLFN11, BST2, and SAMHD1 in LTNP and early treated subjects implies that these RFs may be associated with spontaneous virological control." @default.
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- W2914704192 date "2019-03-01" @default.
- W2914704192 modified "2023-10-18" @default.
- W2914704192 title "Early treated HIV-1 positive individuals demonstrate similar restriction factor expression profile as long-term non-progressors" @default.
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- W2914704192 doi "https://doi.org/10.1016/j.ebiom.2019.02.006" @default.
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