Abstract
The purpose of this study was to observe whether HBV can infect HSC in vitro. LX-2 cells, the human activated HSC cell line, were incubated with human serum containing HBVDNA at final concen-trations from 0.01 to 10 copies/cell and harvested after 24,48 and 72 hours. Hepatitis B surface antigen (HBsAg) and hepatitis B core antigen(HBcAg) were detected by lmmunohistochemistry dyed by DAB. By Immunohistochemistry, no positive particles in LX-2 cells, a few of dark brown particles (HBsAg and HB-cAg) were found in cytoplasm and nucleoli of HepG2.2. 15 cells,a lot of clark brown particles were found in liver biopsies of patients with chronic hepatitis B. In vitro, there was no evidence that HBV can infect and express antigens in LX-2 cells. Key words: hepatitis B virus; hepatic stollate cell; infection; replication
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