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Cell Death Discovery

Cell Death Discovery

IF: 6.1
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Targeting AKT induced Ferroptosis through FTO/YTHDF2-dependent GPX4 m6A methylation up-regulating and degradating in colorectal cancer

Published:15 December 2023 DOI: 10.1038/s41420-023-01746-x
Ge Zhang, Wunan Mi, Chuyue Wang, Jiehan Li, Yizheng Zhang, Nannan Liu, Meimei Jiang, Guiyun Jia, Feng Wang, Ge Yang, Lingling Zhang, Jiangang Wang, Yang Fu, Yingjie Zhang

Abstract

Ferroptosis is a new type of iron-dependent programmed cell death induced by lipid peroxidation. However, the underlying mechanisms and function in tumor therapy still remain undisclosed especially in post-transcription regulation. Here, we found that targeting AKT significantly induced GPX4 dependent ferroptosis and suppressed colorectal cancer growth both in vitro and in vivo. During this process, demethylase FTO was downregulated, which increased the m6A methylation level of GPX4, subsequently recognized by YTHDF2 and degraded. Prediction results showed that there are three potential methylated sites (193/647/766), and 193 site was identified as the right one, which was demethylated by FTO and read by YTHDF2. In parallel, AKT inhibition caused the accumulation of ROS which had a negative feedback on GPX4 expression. In addition, protective autophagy was initiated by MK2206 stimulation, while blocking autophagy further increased ferroptosis and markedly enhanced the anti-tumor activity of MK2206. In a word, inhibiting AKT activated ferroptosis through FTO/YTHDF2/GPX4 axis to suppress colon cancer progression, which raised FTO/GPX4 as potential biomarkers and targets in colorectal cancer therapy.

Substances (4)

Materials
Procduct Name CAS Molecular Formula Supplier Price
MK-2206 hydrochloride 1032349-77-1 C25H22ClN5O 10 suppliers Inquiry
MK-2206 hydrochloride 1032349-77-1 C25H22ClN5O 10 suppliers Inquiry
MK-2206 hydrochloride 1032349-77-1 C25H22ClN5O 10 suppliers Inquiry
MK-2206 hydrochloride 1032349-77-1 C25H22ClN5O 10 suppliers Inquiry

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