Knockdown of lncRNA ZNRD1-AS1 suppresses gastric cancer cell proliferation and metastasis by targeting the miR-9-5p/HSP90AA1 axis.

Knockdown of lncRNA ZNRD1-AS1 suppresses gastric cancer cell proliferation and metastasis by targeting the miR-9-5p/HSP90AA1 axis.
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DOI:
10.18632/aging.203209
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发表时间:
2021-07-02
期刊:
Aging
影响因子:
--
通讯作者:
Tu YN
Tu YN
中科院分区:
其他
文献类型:
--
作者:
Ba MC;Ba Z;Gong YF;Lin KP;Wu YB;Tu YN

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LncRNA 在多种生物过程中发挥着重要作用,例如癌症发病机制。含有 1 个反义 RNA 1 (ZNRD1-AS1) 的 lncRNA 锌带结构域是 ZNRD1 的天然反义转录本。在这项研究中,我们发现与邻近的健康胃组织相比,胃癌组织中的ZNRD1-AS1水平显着上调。 ZNRD1-AS1水平与淋巴结转移、远端转移和TNM分期相关,但与年龄和性别无关。 ZNRD1-AS1 敲低抑制细胞增殖、迁移和侵袭,并促进细胞凋亡。 ZNRD1-AS1 过表达具有相反的效果。 ZNRD1-AS1 敲低抑制裸鼠模型中的肿瘤生长和肺转移 ZNRD1-AS1 可以与 miR-9-5p 结合,ZNRD1-AS1 敲低可以降低热休克蛋白 90 α 家族 A 类成员 1 (HSP90AA1) 的蛋白水平,而热休克蛋白 90 α 家族 A 类成员 1 (HSP90AA1) 是 miR-9-5p 的靶点。 miR-9-5p抑制剂挽救了ZNRD1-AS1敲低的效果,而ZNRD1-AS1序列上miR-9-5p结合位点的突变体则阻断了ZNRD1-AS1过表达的效果。总之,ZNRD1-AS1在胃癌组织中表达上调,敲低ZNRD1-AS1通过靶向miR-9-5p/HSP90AA1轴抑制胃癌细胞增殖和转移。我们的研究结果为 ZNRD1-AS1 在胃癌中的作用机制提供了新的见解。
LncRNAs play an important role in a variety of biological processes, such as cancer pathogenesis. The lncRNA zinc ribbon domain containing 1 antisense RNA 1 (ZNRD1-AS1) is a natural antisense transcript of ZNRD1. In this study, we found that ZNRD1-AS1 levels were significantly upregulated in gastric cancer tissues compared to those in adjacent healthy gastric tissues. ZNRD1-AS1 levels were correlated with lymph node metastasis, distal metastasis, and TNM stage, but were not correlated with age and sex. ZNRD1-AS1 knockdown suppressed cell proliferation, migration, and invasion, and promoted apoptosis. ZNRD1-AS1 overexpression had the opposite effect. ZNRD1-AS1 knockdown suppressed tumor growth and pulmonary metastasis in a nude mouse model ZNRD1-AS1 can bind to miR-9-5p and ZNRD1-AS1 knockdown can decrease the protein level of heat shock protein 90 alpha family class A member 1 (HSP90AA1), which is the target of miR-9-5p. The miR-9-5p inhibitor rescued the effect of ZNRD1-AS1 knockdown, and the mutant of miR-9-5p binding site on ZNRD1-AS1 sequence blocked the effect of ZNRD1-AS1 overexpression. In conclusion, ZNRD1-AS1 levels were upregulated in gastric cancer tissues, and knockdown of ZNRD1-AS1 suppressed gastric cancer cell proliferation and metastasis by targeting the miR-9-5p/HSP90AA1 axis. Our findings provide novel insights into the mechanism underlying the role of ZNRD1-AS1 in gastric cancer.
LncRNA ZNRD1-AS1 及其功能性 Cis-eQTL 位点对肺癌易感性影响更大的有力证据
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