Abstract Title:

Melatonin inhibits tumorigenicity of glioblastoma stem-like cells via the AKT-EZH2-STAT3 signaling axis.

Abstract Source:

J Pineal Res. 2016 Apr 28. Epub 2016 Apr 28. PMID: 27121240

Abstract Author(s):

Xueran Chen, Aijun Hao, Xian Li, Zhaoxia Du, Hao Li, Hongzhi Wang, Haoran Yang, Zhiyou Fang

Article Affiliation:

Xueran Chen

Abstract:

Glioblastoma stem-like cells (GSCs) displaying self-renewing and tumor-propagating capacity play a particularly important role in maintaining tumor growth, therapeutic resistance, and tumor recurrence. Therefore, new therapeutic strategies focusing on impairing GSC maintenance are urgently needed. Here, we used GSCs isolated from surgical specimens from glioblastoma multiforme (GBM) patients to study the roles and underlying mechanisms associated with melatonin in GSC biology. The results showed that melatonin directly targeted glioma tumor cells by altering GSC biology and inhibiting GSC proliferation. Additionally, melatonin altered profile of transcription factors to inhibit tumor initiation and propagation. Furthermore, EZH2 S21 phosphorylation and EZH2-STAT3 interaction in GSCs were impaired following melatonin treatment. These results suggested that melatonin attenuated multiple key signals involved in GSC self-renewal and survival, and further supported melatonin as a promising GBM therapeutic. This article is protected by copyright. All rights reserved.

Study Type : In Vitro Study

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Sayer Ji
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