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- W2332583172 abstract "Chronic hepatitis C virus (HCV) infection causes severe liver disease in HIV-infected patients and liver transplant recipients. The impact of serum and immunoglobulin on viral entry was analysed in these patients.Sera from 60 anti-HCV positive patients, including 30 who were also anti-HIV positive, were tested with HCVpp from different genotypes (1a, 1b, 3 and 4) and with HCVcc (H77/JFH1). Seventeen HIV-seropositive and 13 HIV-seronegative patients with decompensated liver disease were studied before and after liver transplant.Serum neutralization was markedly lower after liver transplant and in HIV patients than in mono-infected immune-competent individuals. This effect was due to low antibody-mediated neutralization. In HIV patients, low neutralization was correlated with low lymphocyte T CD4 cell counts and the severity of liver disease. To characterize neutralization, we tested HCVpp lacking hypervariable region (HVR1) and SR-BI receptor cholesterol transfer inhibition by BLT-4. These experiments showed that neutralization was strongly dependent on the HVR1 and the SR-BI receptor. HVR1 sequences showed that selective pressures were low in immune-compromised patients and highly correlated to HCV neutralization after liver transplant. Neutralization experiments were reproduced with HCV strain JFH1.Serum neutralization in HIV-coinfected patients and HCV-infected liver transplant recipients is poor enhancing HCV entry through HVR1/SR-BI interplay. This may contribute to the severity of hepatitis C in these settings." @default.
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- W2332583172 date "2015-06-01" @default.
- W2332583172 modified "2023-10-18" @default.
- W2332583172 title "Low cross-neutralization of hepatitis C correlates with liver disease in immunocompromized patients" @default.
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- W2332583172 doi "https://doi.org/10.1097/qad.0000000000000651" @default.
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