Abstract: Objective To study the effect and mechanism of B7-H1 in the course that hepatitis B virus (HBV) caused hepatocelhlar carcinoma (HCC). Methods This study employed lentivirus mediated knockdown of B7-H1 to elucidate the oncogenic role of B7-H1 in human hepatocelhlar carcinoma HepG2 and HepG2.2.15 cell, MTT assay and flow cytometry that B7-H1 knockdown induced decreased cell proliferation and increased apoptosis, Western blot used to test the expression of B7-H1 and Survivin. Results The transfected lentivirus-B7-H1 HepG2 and HepG2.2.15 cells induced decreased cell proliferation and increased apoptosis, and at the same time the expression of Survivin protein also decreased. Conclusions Knockdown of B7-H1 induced decreased cell proliferation and increased apoptosis of HepG2.2.15 cell, B7-H1 effected on proliferation and apoptosis of that HBV causes HCC which may have role in Survivin ways.
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