YTHDF1-regulated expression of TEAD1 contributes to the maintenance of intestinal stem cells.

N6-methyladenosine (m6A) mRNA modification has been defined as a crucial regulator in various biological processes. Recent studies indicated an essential role of YTHDF1, an m6A reader, in the maintenance of intestinal stem cells (ISCs), while the detailed mechanism remains to be explored. By searching our m6A sequencing, RNA sequencing, and ribosome profiling data, we identified the transcriptional enhanced associate domain 1 (TEAD1) as a direct target of YTHDF1. We confirmed the presence of m6A modifications in TEAD1 mRNA and its binding with YTHDF1. Knockdown of either m6A methyltransferase METTL3 or YTHDF1 reduced the translation of TEAD1. TEAD1 was highly expressed in ISCs, while depletion of TEAD1 inhibited proliferation and induced differentiation of organoids. Overexpression of TEAD1 reversed the impaired stemness elicited by YTHDF1 depletion. These findings identify TEAD1 as a functional target of m6A-YTHDF1 in sustaining intestinal stemness. Copyright © 2021 Elsevier Inc. All rights reserved.

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Dan Jiang, Jingyu Hou, Yu Qian, Yunyi Gao, Xiangwei Gao, Saisai Wei. YTHDF1-regulated expression of TEAD1 contributes to the maintenance of intestinal stem cells. Biochemical and biophysical research communications. 2021 Jun 11;557:85-89

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PMID: 33862464

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