Ursolic Acid Inhibits Cigarette Smoke Extract-Induced Human Bronchial Epithelial Cell Injury and Prevents Development of Lung Cancer

作者：Liu Wenbo; Tan Xiaobin; Shu Luan; Sun Hanyan; Song Jie; Jin Ping; Yu Siming; Sun Min; Jia Xiaobin^*

来源：Molecules, 2012, 17(8): 9104-9115.

DOI：10.3390/molecules17089104

• Nrf2
• CSE
• phase II detoxifying enzymes
• ursolic acid
• chemopreventive

Cigarette smoking is the main cause of chronic obstructive pulmonary disease and lung cancer. The present study was aimed to explore the chemopreventive effect of ursolic acid (UA) on these diseases. In the CSE treated normal human bronchial epithelial cell model, UA alleviated cytotoxicity caused by CSE, recovered the intracellular redox balance, and relieved the stimulation of external deleterious factors as well. UA mitigated CSE-induced DNA damage through the Nrf2 (nuclear factor erythroid 2-related factor 2) pathway. Moreover, UA inhibited lung cancer development in the model established by A549 cells in nude mice in vivo. For the first time, our results indicate that UA could be developed as a potential lung cancer chemopreventive agent.

• 出版日期2012-8
• 单位安徽大学; 江苏省中医药研究院