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Journal of Immunology Research
Volume 2017 (2017), Article ID 3072745, 9 pages
https://doi.org/10.1155/2017/3072745
Research Article

Exemestane Attenuates Hepatic Fibrosis in Rats by Inhibiting Activation of Hepatic Stellate Cells and Promoting the Secretion of Interleukin 10

1Shanghai Medical College of Fudan University, Shanghai 200032, China
2State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
3Department of Oncology, Huai’an First People’s Hospital, Nanjing Medical University, Huai’an 223300, China
4Department of Obstetrics and Gynecology, Fengxian Hospital, Shanghai 201499, China

Correspondence should be addressed to Xin Xing; nc.evil@10_nixgniX and Zhi-Gang Zhang; gro.icshs@gnahzz

Received 5 September 2017; Accepted 23 October 2017; Published 10 December 2017

Academic Editor: Jian Song

Copyright © 2017 Ya-Hui Wang 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

Exemestane (EXE) is an irreversible steroidal aromatase inhibitor mainly used as an adjuvant endocrine therapy for postmenopausal women suffering from breast cancer. Besides inhibiting aromatase activity, EXE has multiple biological functions, such as antiproliferation, anti-inflammatory, and antioxidant activities which are all involved in hepatic fibrosis. Therefore, we investigated the role of EXE during the progress of hepatic fibrosis. The effect of EXE on liver injury and fibrosis were assessed in two hepatic fibrosis rat models, which were induced by either carbon tetrachloride (CCl4) or bile duct ligation (BDL). The influence of EXE treatment on activation and proliferation of primary rat hepatic stellate cells (HSCs) was observed in vitro. The results showed that EXE attenuated the liver fibrosis by decreasing the collagen deposition and α-SMA expression in vivo and inhibited the activation and proliferation of primary rat HSCs in vitro. Additionally, EXE promoted the secretion of antifibrotic and anti-inflammatory cytokine IL-10 in vivo and in HSC-T6 culture media. In conclusion, our findings reveal a new function of EXE on hepatic fibrosis and prompted its latent application in liver fibrotic-related disease.