Department of Thoracic Surgery, Jiangyin Hospital of Traditional Chinese Medicine, Jiangyin Hospital Affiliated to Nanjing University of Chinese Medicine, Jiangyin 214400, China.
Comput Math Methods Med. 2021 Nov 5;2021:9549287. doi: 10.1155/2021/9549287. eCollection 2021.
BACKGROUND: ANLN and miR-30a-5p may be involved in the progression of lung adenocarcinoma (LUAD). However, their underlying mechanism in LUAD has not been completely comprehended. METHODS: Differential expression analysis, binding site prediction, and survival analysis were conducted by bioinformatics approaches. ANLN mRNA and miR-30a-5p expression were detected by qRT-PCR. ANLN protein expression was detected by western blot. Cell behaviors in LUAD were examined by functional experiments. RESULTS: ANLN was activated in LUAD cells in terms of mRNA and protein. High ANLN level was positively correlated with poor prognosis. Enforced ANLN stimulated protumorigenesis LUAD cell behaviors. miR-30a-5p could target ANLN mRNA, as revealed and verified through assays. Remarkably low miR-30a-5p expression was observed in LUAD cells, and it could repress ANLN expression. The accelerated cell behaviors by overexpression of ANLN were counteracted by upregulating miR-30a-5p. CONCLUSION: Overall, miR-30a-5p remarkably restrained the malignant progression of LUAD cells by constraining ANLN expression. Thus, ANLN and miR-30a-5p could be novel therapeutic targets of LUAD.
背景:卷曲螺旋结构域蛋白 22(ANLN)和 miR-30a-5p 可能参与肺腺癌(LUAD)的进展。然而,其在 LUAD 中的潜在机制尚未完全阐明。
方法:通过生物信息学方法进行差异表达分析、结合位点预测和生存分析。采用 qRT-PCR 检测 ANLN mRNA 和 miR-30a-5p 的表达。采用 Western blot 检测 ANLN 蛋白表达。通过功能实验检测 LUAD 中的细胞行为。
结果:在 LUAD 细胞中,ANLN 在 mRNA 和蛋白水平上均被激活。高 ANLN 水平与不良预后呈正相关。过表达 ANLN 可刺激促肿瘤发生的 LUAD 细胞行为。miR-30a-5p 可以靶向 ANLN mRNA,通过实验证实和验证。在 LUAD 细胞中观察到 miR-30a-5p 表达显著降低,可抑制 ANLN 表达。过表达 ANLN 加速的细胞行为可通过上调 miR-30a-5p 得到抑制。
结论:总体而言,miR-30a-5p 通过抑制 ANLN 表达显著抑制 LUAD 细胞的恶性进展。因此,ANLN 和 miR-30a-5p 可能成为 LUAD 的新治疗靶点。
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