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Article Publish Status: FREE
Abstract Title:

Tanshinone IIA promotes IL2-mediated SW480 colorectal cancer cell apoptosis by triggering INF2-related mitochondrial fission and activating the Mst1-Hippo pathway.

Abstract Source:

Biomed Pharmacother. 2018 Dec ;108:1658-1669. Epub 2018 Oct 11. PMID: 30372868

Abstract Author(s):

Jun Qian, Dong Fang, Hong Lu, Yi Cao, Ji Zhang, Rong Ding, Lingchang Li, Jiege Huo

Article Affiliation:

Jun Qian

Abstract:

IL-2-based therapy is a promising tool to treat colorectal cancer, but drug resistance always occurs in clinical practice. Mitochondrial fission is a novel target to modulate cancer development and progression. The aim of our study is to explore the effect of IL-2 combined with Tan IIA on SW480 colorectal cancer cell apoptosis in vitro and to determine whether IL-2/Tan IIA cotreatment could reduce SW480 cell viability via activating mitochondrial fission. The results indicated that Tan IIA increased IL-2-mediated cell death in SW480 colorectal cancer cells, and this effect was also accompanied with a reduction in cell proliferation. Functional investigations demonstrated that Tan IIA/IL-2 cotreatment enhanced INF2-related mitochondrial fission. Excessive mitochondrial division induced mitochondrial oxidative stress, mitochondrial energy metabolism disorder and mitochondrial apoptosis in SW480 cells. Inhibition of mitochondrial fission attenuated the antitumor effect of Tan IIA/IL-2 cotreatment on SW480 cell apoptosis. Further, we demonstrated that Tan IIA/IL-2 combination therapy controlled INF2-related mitochondrial fission via the Mst1-Hippo pathway. Moreover, Mst1 knockdown abrogated Tan IIA/IL-2-activated mitochondrial fission. Altogether, our results demonstrated that Tan IIA enhances the therapeutic efficiency of IL-2-mediated SW480 colorectal cancer cell apoptosis via promoting INF2-related mitochondrial fission and activating the Mst1-Hippo pathway.

Study Type : In Vitro Study

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