MiR‐205‐5p promotes lung cancer progression and is valuable for the diagnosis of lung cancer

• Published in: Thoracic cancer Vol. 13; no. 6; pp. 832 - 843
• Main Authors: Zhao, Yu‐Long, Zhang, Jia‐Xiang, Yang, Juan‐Juan, Wei, Yu‐Bo, Peng, Jie‐Fei, Fu, Chang‐Jin, Huang, Min‐Hua, Wang, Rong, Wang, Ping‐Yu, Sun, Guang‐Bin, Xie, Shu‐Yang
• Format: Journal Article
• Language: English
• Published: Melbourne John Wiley & Sons Australia, Ltd 01.03.2022; John Wiley & Sons, Inc; Wiley
• Subjects: 3' Untranslated Regions; Apoptosis; biomarker; Cancer therapies; Carcinoma, Non-Small-Cell Lung - pathology; Carrier Proteins - genetics; Cell cycle; Cell Line, Tumor; Cell Proliferation; Gene expression; Gene Expression Regulation, Neoplastic; Health care; Heat-Shock Proteins - genetics; Humans; Lung cancer; Lung Neoplasms - diagnosis; Lung Neoplasms - genetics; Lung Neoplasms - metabolism; Metastasis; MicroRNAs; MicroRNAs - metabolism; miR‐205‐5p; Original; TP53INP1; Tumorigenesis; Tumors; China; lung cancer; tumorigenesis; biomarker; miR-205-5p; TP53INP1
• ISSN: 1759-7706; 1759-7714
• DOI: 10.1111/1759-7714.14331

Background MicroRNAs (miRNAs) function as potential diagnostic biomarkers in various cancers. This study aimed to evaluate the roles of miR‐205‐5p in lung cancer progression and diagnosis. Materials and Methods MiR‐205‐5p was detected by quantitative real‐time PCR. The effect of miR‐205‐5p on cell proliferation and metastasis was estimated by MTT and flow cytometry. The expression of TP53INP1 and related genes was analyzed by immunoblotting. The diagnostic value of miR‐205‐5p was analyzed using receiver operating characteristic (ROC) curve analysis, sensitivity, and specificity. Results The miR‐205‐5p was increased in lung cancer tissues. MiR‐205‐5p mimics were promoted but its inhibitor suppressed cell proliferation and metastasis compared with control treatment in vitro and in vivo. By regulating the 3′ untranslated region, miR‐205‐5p could negatively regulate TP53INP1 expression, which further inhibited the expression of RB1 and P21, but increased that of cyclinD1. Moreover, the serum miR‐205‐5p levels of patients with lung cancer were significantly higher than those of normal controls, and they were correlated with patients' gender, drinking status, and clinical stage. The area under the ROC curve of serum miR‐205‐5p in the diagnosis of non‐small‐cell lung cancer was 0.8250, respectively. The finding supported its possession of high diagnostic efficiency for lung cancer. Conclusions MiR‐205‐5p promoted lung cancer cell proliferation and metastasis by negatively regulating the novel target TP53INP1, which further affected the expression of P21, RB1, and cyclin D1. Serum miR‐205‐5p is a novel and valuable biomarker for lung cancer diagnosis. MiR‐205‐5p was upregulated in lung cancer and promoted lung cancer cell proliferation by negatively regulating a novel target TP53INP1, which further affected the expression of P21, RB1, and cyclin D1. A high level of serum miR‐205‐5p is a valuable biomarker for the diagnosis of patients with lung cancer.