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- W2984861736 abstract "Abstract Background Dynamic N 6 -methyladenosine (m 6 A) RNA modification generated and erased by N 6 -methyltransferases and demethylases regulates gene expression, alternative splicing and cell fate. Ocular melanoma, comprising uveal melanoma (UM) and conjunctival melanoma (CM), is the most common primary eye tumor in adults and the 2nd most common melanoma. However, the functional role of m 6 A modification in ocular melanoma remains unclear. Methods m 6 A assays and survival analysis were used to explore decreased global m 6 A levels, indicating a late stage of ocular melanoma and a poor prognosis. Multiomic analysis of miCLIP-seq, RNA-seq and Label-free MS data revealed that m 6 A RNA modification posttranscriptionally promoted HINT2 expression. RNA immunoprecipitation (RIP)-qPCR and dual luciferase assays revealed that HINT2 mRNA specifically interacted with YTHDF1. Furthermore, polysome profiling analysis indicated a greater amount of HINT2 mRNA in the translation pool in ocular melanoma cells with higher m 6 A methylation. Results Here, we show that RNA methylation significantly inhibits the progression of UM and CM. Ocular melanoma samples showed decreased m 6 A levels, indicating a poor prognosis. Changes in global m 6 A modification were highly associated with tumor progression in vitro and in vivo. Mechanistically, YTHDF1 promoted the translation of methylated HINT2 mRNA, a tumor suppressor in ocular melanoma. Conclusions Our work uncovers a critical function for m 6 A methylation in ocular melanoma and provides additional insight into the understanding of m 6 A modification." @default.
- W2984861736 created "2019-11-22" @default.
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- W2984861736 date "2019-11-14" @default.
- W2984861736 modified "2023-10-14" @default.
- W2984861736 title "m6A modification suppresses ocular melanoma through modulating HINT2 mRNA translation" @default.
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- W2984861736 doi "https://doi.org/10.1186/s12943-019-1088-x" @default.
- W2984861736 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6854757" @default.
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