Scavenger Receptor Class B Type I Mediates Cell Entry of Hepatitis C Virus  

Oleh:

Jia, Z.S. ; Du, D.W. ; Lei, Y.F. ; Wei, X.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: The Journal of International Medical Research vol. 36 no. 06 (Nov. 2008), page 1319-1325.
Topik: Hepatitis C Virus

Ketersediaan

Perpustakaan FK Nomor Panggil: J11.K.2008.02 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

This study assessed the functional role of human scavenger receptor class B type I (SR-BI) as a putative hepatitis C virus (HCV) receptor using Chinese hamster ovary (CHO) cells transfected with human SR-BI (CHO–huSR-BI). The expression of SR-BI by primary Tupaia hepatocytes (PTHs), human hepatocarcinoma cell line (HepG2) cells, untransfected CHO cells and CHO–huSR-BI cells was analysed by Western blotting. Receptor competition assays showed that anti-SR-BI antibodies that block the binding of soluble envelope glycoprotein E2 could prevent HCV infection. Pre-incubation of CHO–huSR-BI and HepG2 cells with anti-SR-BI antibodies resulted in marked inhibition of E2 binding. After incubation with HCV RNA-positive serum from a patient with chronic HCV infection, however, HCV infection could not be detected in CHO–huSR-BI cells, but was detected in PTHs. These results demonstrate that, whilst SR-BI represents an important cell surface molecule for HCV infection, the presence of SR-BI alone is insufficient for HCV entry.

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