647 INSULIN DIRECTLY INHIBITS IFN-α SIGNALING IN HEPATIC CELLS THROUGH A SOCS3 INDEPENDENT PATHWAY
2010
When HCVpp lacking the HVR were used (or when SRB1 was inhibited by BLT-4) serum enhancement was lost, particularly in HIV coinfected patients. In HIV patients, neutralization was positively and independently related to CD4 count (p < 0.01) and to antiretroviral therapy (p < 0.001). Selective pressure on HVR was higher in immunocompetent subjects and was related to the neutralization observed with serum immunoglobulin fraction. Conclusion: The sera of patients coinfected by HIV or liver transplanted are poorly neutralizing and facilitate the entry of HCVpp mainly through HVR and SRB1. Our findings are the first to show that low neutralization/high facilitation is related to the immune status and could be involved in the severity of HCV in immunocompromized subjects.
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