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Abstract Title:

Isorhamnetin Induces Melanoma Cell Apoptosis via the PI3K/Akt and NF-B Pathways.

Abstract Source:

Biomed Res Int. 2020 ;2020:1057943. Epub 2020 May 5. PMID: 32461960

Abstract Author(s):

Ran Duan, Xiao Liang, Bangda Chai, Yiwen Zhou, Hengyu Du, Yingjun Suo, Zhaohuan Chen, Qingfeng Li, Xiaolu Huang

Article Affiliation:

Ran Duan

Abstract:

Malignant melanoma is characterized by its bad prognosis for aggressiveness, drug resistance, and early metastasis. Isorhamnetin (3'-methoxy-3,4',5,7-tetrahydroxyflavone; IH) is a natural flavonoid that has been investigated for its antitumor effects in breast cancer, colon cancer, and gastric cancer through inducing cell apoptosis. Given its role in tumor inhibition, no research has been conducted concerning its effect against melanoma. In the present study, we found that IH could significantly inhibit B16F10 cell proliferation and migration and induce B16F10 cell apoptosis. The examination on molecular mechanism revealed that IH could suppress the phosphorylation of Akt and the translocation of NF-B, which are key factors in apoptosis-related pathways. We also detected that this process was related to the bifunctional 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatases 4 (PFKFB4) by PFKFB4 knockdown experiment. In line with in vitro study, we further provided that IH effectively inhibited tumor growth in vivo. Taken together, IH was proven to induce melanoma cell apoptosis in vitro and in vivo, which may serve as a potential agent in malignant melanoma treatment in the future.

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