N-7-methylguanosine tRNA modification promotes esophageal squamous cell carcinoma tumorigenesis via the RPTOR/ULK1/autophagy axis
- Title
- N-7-methylguanosine tRNA modification promotes esophageal squamous cell carcinoma tumorigenesis via the RPTOR/ULK1/autophagy axis
- Author
- 최준호
- Issue Date
- 2022-03
- Publisher
- NATURE PORTFOLIO
- Citation
- NATURE COMMUNICATIONS, v. 13, NO. 1, article no. 1478, Page. 1-15
- Abstract
- Deregulation of METTL1-mediated N7- methylguanosine tRNA modification can promote oncogenesis. Here, the authors report that this modification regulates the translation of proteins in both the mTOR and negative regulators of autophagy pathways, resulting in the progression of esophageal squamous cell carcinoma. Mis-regulated RNA modifications promote the processing and translation of oncogenic mRNAs to facilitate cancer progression, while the molecular mechanisms remain unclear. Here we reveal that tRNA m(7)G methyltransferase complex proteins METTL1 and WDR4 are significantly up-regulated in esophageal squamous cell carcinoma (ESCC) tissues and associated with poor ESCC prognosis. In addition, METTL1 and WDR4 promote ESCC progression via the tRNA m(7)G methyltransferase activity in vitro and in vivo. Mechanistically, METTL1 or WDR4 knockdown leads to decreased expression of m(7)G-modified tRNAs and reduces the translation of a subset of oncogenic transcripts enriched in RPTOR/ULK1/autophagy pathway. Furthermore, ESCC models using Mettl1 conditional knockout and knockin mice uncover the essential function of METTL1 in promoting ESCC tumorigenesis in vivo. Our study demonstrates the important oncogenic function of mis-regulated tRNA m(7)G modification in ESCC, and suggest that targeting METTL1 and its downstream signaling axis could be a promising therapeutic target for ESCC treatment.
- URI
- https://www.nature.com/articles/s41467-022-29125-7https://repository.hanyang.ac.kr/handle/20.500.11754/177933
- ISSN
- 2041-1723;2041-1723
- DOI
- 10.1038/s41467-022-29125-7
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > LIFE SCIENCE(생명과학과) > Articles
- Files in This Item:
- N7-methylguanosine tRNA modification promotes esophageal squamous cell carcinoma tumorigenesis via the RPTORULK1autophagy axis.pdfDownload
- Export
- RIS (EndNote)
- XLS (Excel)
- XML