Translation Control by p53.

Translation Control by p53.
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DOI:
10.3390/cancers10050133
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发表时间:
2018-05-05
期刊:
影响因子:
5.2
通讯作者:
Sauane M
Sauane M
中科院分区:
医学2区
文献类型:
--
作者:
Kasteri J;Das D;Zhong X;Persaud L;Francis A;Muharam H;Sauane M

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mRNA 的翻译在基因表达的调节中起着至关重要的作用,因此在细胞增殖、分化和凋亡的调节中也起着至关重要的作用。不受限制的翻译起始会导致恶性转化,并在癌症的维持和进展中发挥关键作用。翻译起始由三元复合物和真核起始因子 4F (eIF4F) 复合物调节。 p53 肿瘤抑制蛋白是研究最深入的哺乳动物转录因子,可介导多种抗增殖过程。一般而言,基因表达的转录后机制,特别是翻译的转录后机制,在塑造细胞的蛋白质组成方面发挥着重要作用。 p53 蛋白调节转录并控制 eIF4F、三元复合物和核糖体成分的合成,包括 rRNA 基因的下调。总之,p53的诱导调节蛋白质合成和翻译控制以抑制细胞生长。
The translation of mRNAs plays a critical role in the regulation of gene expression and therefore, in the regulation of cell proliferation, differentiation and apoptosis. Unrestricted initiation of translation causes malignant transformation and plays a key role in the maintenance and progression of cancers. Translation initiation is regulated by the ternary complex and the eukaryotic initiation factor 4F (eIF4F) complex. The p53 tumor suppressor protein is the most well studied mammalian transcription factor that mediates a variety of anti-proliferative processes. Post-transcriptional mechanisms of gene expression in general and those of translation in particular play a major role in shaping the protein composition of the cell. The p53 protein regulates transcription and controls eIF4F, the ternary complex and the synthesis of ribosomal components, including the down-regulation of rRNA genes. In summary, the induction of p53 regulates protein synthesis and translational control to inhibit cell growth.
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