circNUDT21 promotes bladder cancer progression by modulating the miR-16-1-3p/MDM2/p53 axis.

circNUDT21 promotes bladder cancer progression by modulating the miR-16-1-3p/MDM2/p53 axis.
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circNUDT21通过调节miR-16-1-3p/MDM2/p53轴促进膀胱癌进展

DOI:
10.1016/j.omtn.2021.08.032
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发表时间:
2021-12-03
期刊:
Molecular therapy. Nucleic acids
影响因子:
--
通讯作者:
Hou T
Hou T
中科院分区:
其他
文献类型:
--
作者:
Chen L;Li W;Li Z;Song Y;Zhao J;Chen Z;Kazobinka G;Li L;Xing Y;Hou T

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膀胱癌是一种常见的泌尿生殖系统恶性肿瘤。本研究调查了外显子CircRNA CircNUDT21在BC进展中的调节作用。在BC组织和细胞系中,与正常对照相比,CircNUDT21水平过表达。CircNUDT21的过表达和沉默分别促进和抑制BC细胞的增殖和侵袭能力。机制分析表明,CircNUDT21作为miR-16-1-3p的海绵,MDM2是miR-16-1-3p的潜在下游靶点。我们进一步验证了CircNUDT21的过度表达与MDM2的升高和p53的表达降低有关。CircNUDT21作为miR-16-1-3p的海绵,激活miR-16-1-3p/MDM2/P53轴,从而促进了BC的进展。这些发现表明,CircNUDT21具有致癌CircRNA的功能,可能是BBC的潜在治疗靶点。Hou和他的同事发现CircNUDT21是膀胱癌中的致癌CircRNA。他们发现,CircNUDT21通过充当miR-16-1-3p的海绵来激活miR-16-1-3p/MDM2/p53轴,从而促进膀胱癌的进展。
Bladder cancer (BC) is a common genitourinary malignancy. This study investigated the regulatory effects of an exonic circRNA, circNUDT21, in the progression of BC. The circNUDT21 level was overexpressed in BC tissues and cell lines as compared to normal controls. Overexpression and silencing of circNUDT21 promoted and inhibited, respectively, the proliferative and invasive abilities of BC cells. Mechanistical analysis showed that circNUDT21 acted as a miR-16-1-3p sponge and that MDM2 was a potential downstream target of miR-16-1-3p. We further verified that overexpression of circNUDT21 was associated with elevated MDM2 and reduced p53 expression. CircNUDT21 promoted BC progression by acting as a sponge of miR-16-1-3p to activate the miR-16-1-3p/MDM2/p53 axis. These findings suggest that circNUDT21 functions as an oncogenic circRNA and may be a potential therapy target for BC. Hou and colleagues identified circNUDT21 as an oncogenic circRNA in bladder cancer. They found that circNUDT21 promoted bladder cancer progression by acting as a sponge of miR-16-1-3p to activate the miR-16-1-3p/MDM2/p53 axis.
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