Find in Library
Search millions of books, articles, and more
Indexed Open Access Databases
m7G Methyltransferase METTL1 Promotes Post-ischemic Angiogenesis via Promoting VEGFA mRNA Translation
oleh: Yongchao Zhao, Yongchao Zhao, Yongchao Zhao, Lingqiu Kong, Lingqiu Kong, Zhiqiang Pei, Zhiqiang Pei, Fuhai Li, Fuhai Li, Chaofu Li, Chaofu Li, Chaofu Li, Xiaolei Sun, Xiaolei Sun, Bei Shi, Junbo Ge, Junbo Ge, Junbo Ge
Format: | Article |
---|---|
Diterbitkan: | Frontiers Media S.A. 2021-05-01 |
Deskripsi
Post-transcriptional modifications play pivotal roles in various pathological processes and ischemic disorders. However, the role of N7-methylguanosine (m7G), particularly m7G in mRNA, on post-ischemic angiogenesis remains largely unknown. Here, we identified that methyltransferase like 1 (METTL1) was a critical candidate responsible for a global decrease of m7G within mRNA from the ischemic tissues. The in vivo gene transfer of METTL1 improved blood flow recovery and increased angiogenesis with enhanced mRNA m7G upon post-ischemic injury. Increased METTL1 expression using plasmid transfection in vitro promoted HUVECs proliferation, migration, and tube formation with a global increase of m7G in mRNA. Mechanistically, METTL1 promoted VEGFA mRNA translation in an m7G methylation-dependent manner. Our findings emphasize a critical link between mRNA m7G and ischemia and provide a novel insight of targeting METTL1 in the therapeutic angiogenesis for ischemic disorders, including peripheral arterial disease.