Journal of Huazhong University of Science and Technology [Medical Sciences]

, Volume 30, Issue 1, pp 98–102

In vitro anti-hepatitis B virus effect of Hypericum perforatum L.

  • Ran Pang庞 然
  • Junyan Tao陶君彦
  • Shuling Zhang张淑玲
  • Jiang Zhu朱 江
  • Xin Yue乐 鑫
  • Lei Zhao赵 雷
  • Pian Ye叶 翩
  • Ying Zhu朱 应
Article

DOI: 10.1007/s11596-010-0118-0

Cite this article as:
Pang, R., Tao, J., Zhang, S. et al. J. Huazhong Univ. Sci. Technol. [Med. Sci.] (2010) 30: 98. doi:10.1007/s11596-010-0118-0

Summary

The anti-hepatitis B virus (HBV) effects and its mechanisms of the ethanol extracts of Hypericum perforatum L. (EHP) in vitro were explored. HepG2 2.2.15 cells, a stable HBV-producing cell line, were cultured as the model system to observe the anti-HBV effect. The viral antigens of cellular secretion, HBsAg and HBeAg, were determined by enzyme linked immunosorbent assay (ELISA). The quantity of HBV-DNA released in the supernatant was assayed by real-time PCR. In order to understand the mechanisms of the suppression of HBV replication, all HBV promoters (Cp, Xp, S1p, S2p and Fp) with luciferase reporter gene were transfected into HepG2 cells respectively. Then the activities of viral promoters were examined by luciferase reporter assay. It was found EHP effectively suppressed the secretion of HBsAg and HBeAg from HepG2 2.2.15 cells in a dose-dependent manner, as well as the extracellular HBV DNA. And EHP could selectively inhibit the activity of HBV promoter Fp. Our data suggest that EHP exerts anti-HBV effects via inhibition of HBV transcription, which helps to elucidate the mechanism underlying the potential therapeutic value of EHP.

Key words

hepatitis B virusHypericum perforatum L.HBsAgHBeAgHBV DNAHBV promoter

Copyright information

© Huazhong University of Science and Technology and Springer Berlin Heidelberg 2010

Authors and Affiliations

  • Ran Pang庞 然
    • 1
  • Junyan Tao陶君彦
    • 2
  • Shuling Zhang张淑玲
    • 1
  • Jiang Zhu朱 江
    • 3
  • Xin Yue乐 鑫
    • 4
  • Lei Zhao赵 雷
    • 1
  • Pian Ye叶 翩
    • 1
  • Ying Zhu朱 应
    • 4
  1. 1.Department of Hepatology and Infectious Disease, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
  2. 2.College of PharmacyHubei College of Traditional Chinese MedicineWuhanChina
  3. 3.Food Industry Research Institute of Jiangxi ProvinceNanchangChina
  4. 4.State Key Laboratory of Virology, College of Life SciencesWuhan UniversityWuhanChina