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Abstract Title:

Ursolic acid induces apoptosis and autophagy in oral cancer cells.

Abstract Source:

Environ Toxicol. 2019 May 7. Epub 2019 May 7. PMID: 31062913

Abstract Author(s):

Cheng-Wen Lin, Hsien-Kuo Chin, Shou-Lun Lee, Chang-Fang Chiu, Jing-Gung Chung, Zi-Yin Lin, Chia-Yung Wu, Ying-Chen Liu, Yung-Ting Hsiao, Chia-Hsien Feng, Li-Yuan Bai, Jing-Ru Weng

Article Affiliation:

Cheng-Wen Lin

Abstract:

Oral squamous cell carcinoma (OSCC) is the fifth common cause of cancer mortality in Taiwan with high incidence and recurrence and needs new therapeutic strategies. In this study, ursolic acid (UA), a triterpenoid, was examined the antitumor potency in OSCC cells. Our results showed that UA inhibited the proliferation of OSCC cells in a dose- and time-dependent manner in both Ca922 and SCC2095 oral cancer cells. UA induced caspase-dependent apoptosis accompanied with the modulation of various biological biomarkers including downregulating Akt/mTOR/NF-κB signaling, ERK, and p38. In addition, UA inhibited angiogenesis as evidenced by abrogation of migration/invasion and blocking MMP-2 secretion in Ca922 cells. Interestingly, UA induced autophagy in OSCC cells, as manifested by LC3B-II conversion and increased p62 expression and accumulation of autophagosomes. Inhibition by autophagy inhibitor enhanced UA-mediated apoptosis in Ca922 cells. The experiment provides a rationale for using triterpenoid in the treatment of OSCC.

Study Type : In Vitro Study

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