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  • Title: Hepatitis C virus RNA in plasma and blood mononuclear cells in patients with chronic hepatitis C treated with alpha-interferon.
    Author: Ounanian A, Gueddah N, Rolachon A, Thelu MA, Zarski JP, Seigneurin JM.
    Journal: J Med Virol; 1995 Feb; 45(2):141-5. PubMed ID: 7775931.
    Abstract:
    Hepatitis C virus (HCV), a positive stranded RNA virus, is the main causative agent of post-transfusion and sporadic non-A non-B hepatitis worldwide. Paired samples of plasma and peripheral blood mononuclear cells (PBMC) from 11 patients with chronic hepatitis C treated with alpha-interferon (IFN) were tested, using a single step polymerase chain reaction (PCR), for the presence of HCV RNA. Before treatment, the viral genome was detected in all the plasma samples and 81.8% of PBMC. After 3 months of treatment, HCV RNA was still present in 63.6% of plasma samples but in only 27.3% of PBMC. A good correlation was observed between serum alanine aminotransferase level normalisation and disappearance of the viral genome in plasma. Among the six responder patients, five relapsed shortly after IFN withdrawal; HCV RNA became detectable again, especially in PBMC. These results show the presence of HCV in PBMC from most patients infected chronically. IFN therapy had an inhibitory effect on viral replication in lymphoid cells, but frequent relapses observed after cessation of treatment with IFN suggested persistence of HCV in these cells.
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