Dicer1 Promotes Colon Cancer Cell Invasion and Migration Through Modulation of tRF-20-MEJB5Y13 Expression Under Hypoxia.

Dicer1 Promotes Colon Cancer Cell Invasion and Migration Through Modulation of tRF-20-MEJB5Y13 Expression Under Hypoxia.
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Dicer1 通过调节缺氧条件下 tRF-20-MEJB5Y13 的表达促进结肠癌细胞侵袭和迁移

DOI:
10.3389/fgene.2021.638244
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发表时间:
2021
影响因子:
3.7
通讯作者:
Wang J
Wang J
中科院分区:
生物学3区
文献类型:
--
作者:
Luan N;Mu Y;Mu J;Chen Y;Ye X;Zhou Q;Xu M;Deng Q;Hu Y;Tang Z;Wang J

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缺氧在结直肠癌(CRC)转移中起关键作用,但其潜在机制仍不清楚。Dicer 1是一种核糖核酸酶,在许多肿瘤中被认为是一种肿瘤调节因子。然而,Dicer 1是否影响缺氧条件下的CRC进展仍不确定。在这项研究中,我们发现Dicer 1的表达是由缺氧诱导的CRC细胞,它介导缺氧诱导的CRC细胞进展。此外,我们发现,tRF-20-MEJB 5 Y13,一个小的非编码RNA来源于tRNA,表达增加缺氧条件下,其上调Dicer 1导致缺氧诱导的CRC细胞的侵袭和迁移。这些结果推进了目前对Dicer 1在调节缺氧信号中的作用的理解,并为开发抑制癌症进展的治疗干预措施提供了新的途径。
Hypoxia plays a key role in colorectal cancer (CRC) metastasis, but its underlying mechanism remains largely unknown. Dicer1, an RNase, has been considered as a tumor regulator in many tumors. However, whether Dicer1 affects CRC progression under hypoxia remains uncertain. In this study, we found that Dicer1 expression was induced by hypoxia in CRC cells and it mediates hypoxia-induced CRC cell progression. Furthermore, we found that the expression of tRF-20-MEJB5Y13, a small non-coding RNA derived from tRNA, was increased under hypoxic conditions, and its upregulation by Dicer1 resulted in hypoxia-induced CRC cell invasion and migration. These results advance the current understanding of the role of Dicer1 in regulating hypoxia signals and provide a new pathway for the development of therapeutic interventions for inhibiting cancer progression.
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