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RNA mA methylation regulates dissemination of cancer cells by modulating expression and membrane localization of β-catenin. | LitMetric

RNA mA methylation regulates dissemination of cancer cells by modulating expression and membrane localization of β-catenin.

Mol Ther

Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, China. Electronic address:

Published: April 2022

AI Article Synopsis

Article Abstract

N6-methyladenosine (mA) methylation, which is modified by the METTL3/METTL14 complex, is a dominant internal modification in mammalian RNA and tightly linked to cancer progression. Here we reveal that METTL3-promoted cell migration, invasion, and epithelial-to-mesenchymal transition (EMT) are associated with expression and membrane localization of β-catenin (encoded by CTNNB1), as opposed to Wnt signaling activation in various types of cancer cells, including cervical, lung, and liver cancer. Specifically, METTL3 regulates the transcription, mRNA decay, translation, and subcellular localization of β-catenin. For CTNNB1 expression, METTL3 indirectly suppresses CTNNB1 transcription by stabilizing its transcription suppressor E2F1 mRNA; deposition of 5'UTR mA in CTNNB1 promotes its decay in a content-dependent manner via YTHDF2 recognition; 5'UTR mA in CTNNB1 suppresses its translation efficiency, whereas the global METTL3 level controls the canonical and non-canonical translation of CTNNB1, which is probably associated with the interaction between YTHDF1 and eIF4E1/eIF4E3. For β-catenin translocation, METTL3 represses membrane localization of β-catenin and its interaction with E-cadherin by downregulating c-Met kinase, leading to inhibition of cell motility. In vitro, in vivo, and clinical analyses confirm the essential role of β-catenin and its expression regulators in cancer cell dissemination. The findings not only expand our understanding of mA modification and its roles in gene expression and subcellular localization of targets but also suggest that the METTL3/β-catenin axis might be a potential target to inhibit cancer metastasis.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9077323PMC
http://dx.doi.org/10.1016/j.ymthe.2022.01.019DOI Listing

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