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Abstract Title:

Sinensetin induces apoptosis and autophagy in the treatment of human T-cell lymphoma.

Abstract Source:

Anticancer Drugs. 2019 06 ;30(5):485-494. PMID: 30702500

Abstract Author(s):

Kok-Tong Tan, Meng-Xian Lin, Shih-Chao Lin, Yu-Tang Tung, Sheng-Hao Lin, Chi-Chien Lin

Article Affiliation:

Kok-Tong Tan

Abstract:

The present study was carried out to explore the effect of sinensetin in human T-cell lymphoma Jurkat cells and to reveal the underlying molecular mechanisms. We found that sinensetin significantly impeded Jurkat cell proliferation in a dose-dependent and time-dependent manner. Additionally, sinensetin treatment triggered apoptosis and autophagy in Jurkat cells. The apoptosis induction was related to a loss of mitochondrial membrane potential and to increased caspase-3/-8/-9 and poly(ADP-ribose) polymerase (PARP) cleavage. Sinensetin also induced autophagy, as evidenced by the formation of acidic vacuoles, the upregulation of LC3-II and beclin-1, and the downregulation of p62. In addition, the inhibition of autophagy by 3-methyladenine significantly enhanced the apoptosis rate and improved the sensitivity of the Jurkat cells to sinensetin. Moreover, sinensetin induced cell death, apoptosis, and autophagy through the activation of the reactive oxygen species/ c-Jun N-terminal kinase signaling pathway and the inhibition of the Akt/mTOR signaling pathways. In summary, our results revealed that sinensetin induced apoptosis and autophagy in human T-cell lymphoma Jurkat cells by activating reactive oxygen species/ c-Jun N-terminal kinase and blocking the Akt/mTOR signaling pathways. Thus, sinensetin might be a potential candidate in the development of antitumor drugs targeting T-cell leukemia.

Study Type : In Vitro Study

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Sayer Ji
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