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Evidence-Based Complementary and Alternative Medicine
Volume 2016 (2016), Article ID 9238512, 12 pages
http://dx.doi.org/10.1155/2016/9238512
Research Article

Effects of Extracts from Tiaozhi Granule and Its Components on Expression of Scavenger Receptor Class B Type I

1Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Dushu Lake Campus, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou 215123, China
2Department of Internal Medicine, The Affiliated Suzhou Chinese Traditional Medicine Hospital, Nanjing University of Chinese Medicine, 18 Yang-Su Road, Suzhou 215003, China
3Department of Physiology, Medical College of Soochow University, Dushu Lake Campus, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou 215123, China

Received 2 September 2016; Revised 23 October 2016; Accepted 20 November 2016

Academic Editor: Kuzhuvelil B. Harikumar

Copyright © 2016 Xiao Yu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Sera from the rats with different drug treatments (atorvastatin, Tiaozhi granule, or its extracts) were collected. LO-2 cells or HepG2 cells were pretreated with different sera as the following groups randomly: (1) blank control group, (2) positive control group (atorvastatin group), (3) Tiaozhi granule water extract groups, (4) Tiaozhi granule alcohol extract groups, and (5) alcohol extracts for each component: Pollen Typhae Angustifoliae, Curcuma longa L., and Rhizoma Alismatis. LO-2 cells were cotransfected with plasmid carrying SR-BI and pRL-TK promoter genes. Promoter activity was measured by the luciferase reporter gene assay. The mRNA and protein expressions of SR-BI were examined using real-time PCR and western blot analyses. Our results show that promoter activity and mRNA and protein expression levels of the SR-BI were significantly upregulated by Tiaozhi granules alcohol or water extracts in a dose-dependent manner. Pollen Typhae Angustifoliae alcohol extract with a high dosage could also increase SR-BI activity and expression, but not the extracts from Curcuma longa L. and Rhizoma Alismatis. Both Tiaozhi granule alcohol and water extracts can upregulate SR-BI gene expression. Among the components, Pollen Typhae Angustifoliae are important for the regulatory effect coordinating with Curcuma longa L. and Rhizoma Alismatis.