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Advances in the roles and mechanisms of nonsense-mediated mRNA decay in embryonic development

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Author:
No author available
Journal Title:
Acta Physiologica Sinica
Issue:
2
DOI:
10.13294/j.aps.2019.0019
Key Word:
无义介导的mRNA降解;提前终止密码子;胚胎干细胞;自我更新;分化;胚胎发育;nonsense-mediated mRNA decay;premature termination codons;embryonic stem cells;self-renewal;differentiation;embryonic development

Abstract: Nonsense-mediated mRNA decay(NMD) is originally identified as a widespread mRNA surveillance machinery in degrading ‘aberrant' mRNA species with premature termination codons(PTCs) rapidly,which protects the cells from the accumulation of truncated proteins.Recent studies show that NMD can also regulate the degradation of normal gene transcripts,which execute important cellular and physiological functions.Therefore,NMD is considered as a highly conserved post-transcriptional regulatory mechanism in eukaryotes.NMD modulates 3% to 20% of the transcriptome from yeast to human directly or indirectly,which is essential for various physiological processes,such as cell homeostasis,stress response,proliferation,and differentiation.NMD can regulate the level of transcripts that involves in development,and single knockout of most NMD factors has an embryonic lethal effect.NMD plays an important role in the self-renewal,differentiation of embryonic stem cells and is critical during embryonic development.In this review,we summarized the latest advances in the roles and mechanisms of NMD in embryonic development,in order to provide new ideas for the research on embryonic development and the treatment of embryonic development related diseases.

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