Serum-Derived Hepatitis C Virus Infection of Primary Human Hepatocytes Is Tetraspanin CD81 Dependent

Sonia Molina, V Castet, L Pichard-Garcia, C Wychowski, E Meurs, JM Pascussi, C Sureau, JM Fabre, A SaCunha, D Larrey, J Dubuisson, J Coste, Jane McKeating, P Maurel, C Fournier-Wirth

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111 Citations (Scopus)

Abstract

Hepatitis C virus-positive serum (HCVser, genotypes 1a to 3a) or HCV cell culture (JFH1/HCVcc) infection of primary normal human hepatocytes was assessed by measuring intracellular HCV RNA strands. Anti-CD81 antibodies and siRNA-CD81 silencing markedly inhibited (>90%) HCVser infection irrespective of HCV genotype, viral load, or liver donor, while hCD81-large intracellular loop (LEL) had no effect. However, JFH1/HCVcc infection of hepatocytes was modestly inhibited (40 to 60%) by both hCD81-LEL and anti-CD81 antibodies. In conclusion, CD81 is involved in HCVser infection of human hepatocytes, and comparative studies of HCVser versus JFH1/HCVcc infection of human hepatocytes and Huh-7.5 cells revealed that the cell-virion combination is determinant of the entry process.
Original languageEnglish
Pages (from-to)569-574
Number of pages6
JournalJournal of virology
Volume82
Issue number1
Early online date17 Oct 2007
DOIs
Publication statusPublished - 17 Oct 2007

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