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MicroRNA-153-5p promotes the proliferation and metastasis of renal cell carcinoma via direct targeting of AGO1
Cell Death & Disease ( IF 9 ) Pub Date : 2021-01-04 , DOI: 10.1038/s41419-020-03306-y
Zeyan Li 1, 2 , Shuo Zhao 1, 2 , Shiqin Zhu 3 , Yidong Fan 1
Affiliation  

MicroRNAs (miRNAs) have been demonstrated to affect the biological processes of cancers and showed great potential for prognostic biomarkers. In this study, we screened differentially expressed miRNAs in ccRCC based on three dimensions of metastasis, prognosis, and differential expression compared to normal tissue using bioinformatics algorithms. MiR-153-5p was identified as a candidate miRNA to promote ccRCC occurrence and progression. Clinically, we found that miR-153-5p was significantly upregulated and related to unfavorable clinical features in ccRCC. Besides, miR-153-5p served as an independent prognostic biomarker. Functionally, miR-153-5p depletion remarkably inhibited the proliferation and metastasis of ccRCC via the phosphatidylinositol 3-kinase (PI3K)/Akt signaling. Furthermore, AGO1 was proved to be a direct target of miR-153-5p. AGO1 is associated with favorable clinical features and exhibited independent prognostic value in ccRCC. Besides, we observed that AGO1 knockdown significantly promoted tumor proliferation and metastasis. Downregulation of AGO1 partly abolished the oncogenic effects of miR-153-5p knockdown. Furthermore, miR-153-5p combined with AGO1 showed more robust prognostic significance in ccRCC. In conclusion, we found that the newly identified miR-153-5p/AGO1 axis was responsible for tumor occurrence and progression via PI3K/Akt signaling, which may therefore provide promising therapeutic targets and prognostic biomarkers for patients with ccRCC.



中文翻译:

MicroRNA-153-5p通过直接靶向AGO1促进肾细胞癌的增殖和转移

MicroRNAs (miRNAs) 已被证明会影响癌症的生物学过程,并显示出作为预后生物标志物的巨大潜力。在本研究中,我们使用生物信息学算法基于转移、预后和与正常组织相比的差异表达三个维度筛选了 ccRCC 中差异表达的 miRNA。MiR-153-5p 被鉴定为促进 ccRCC 发生和进展的候选 miRNA。在临床上,我们发现 miR-153-5p 显着上调并与 ccRCC 的不利临床特征有关。此外,miR-153-5p 作为独立的预后生物标志物。在功能上,miR-153-5p 缺失通过磷脂酰肌醇 3-激酶 (PI3K)/Akt 信号传导显着抑制 ccRCC 的增殖和转移。此外,AGO1 被证明是 miR-153-5p 的直接靶标。AGO1 与有利的临床特征相关,并在 ccRCC 中表现出独立的预后价值。此外,我们观察到 AGO1 敲低显着促进了肿瘤的增殖和转移。AGO1 的下调部分消除了 miR-153-5p 敲低的致癌作用。此外,miR-153-5p 与 AGO1 结合在 ccRCC 中显示出更强大的预后意义。总之,我们发现新发现的 miR-153-5p/AGO1 轴通过 PI3K/Akt 信号传导负责肿瘤的发生和进展,因此可能为 ccRCC 患者提供有希望的治疗靶点和预后生物标志物。AGO1 的下调部分消除了 miR-153-5p 敲低的致癌作用。此外,miR-153-5p 与 AGO1 结合在 ccRCC 中显示出更强大的预后意义。总之,我们发现新发现的 miR-153-5p/AGO1 轴通过 PI3K/Akt 信号传导负责肿瘤的发生和进展,因此可能为 ccRCC 患者提供有希望的治疗靶点和预后生物标志物。AGO1 的下调部分消除了 miR-153-5p 敲低的致癌作用。此外,miR-153-5p 与 AGO1 结合在 ccRCC 中显示出更强大的预后意义。总之,我们发现新发现的 miR-153-5p/AGO1 轴通过 PI3K/Akt 信号传导负责肿瘤的发生和进展,因此可能为 ccRCC 患者提供有希望的治疗靶点和预后生物标志物。

更新日期:2021-01-08
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