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https://doi.org/10.14670/HH-18-448
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Título: | MiR-19b-3p promotes tumor progression of non-small cell lung cancer via downregulating HOXA9 and predicts poor prognosis in patients |
Fecha de publicación: | 2022 |
Editorial: | Universidad de Murcia, Departamento de Biologia Celular e Histiologia |
Cita bibliográfica: | Histology and Histopathology Vol. 37, nº8 (2022) |
ISSN: | 0213-3911 1699-5848 |
Materias relacionadas: | CDU::6 - Ciencias aplicadas::61 - Medicina::616 - Patología. Medicina clínica. Oncología |
Palabras clave: | NSCLC miR-19b-3p HOXA9 Progression Prognosis |
Resumen: | MiR-19b-3p has been reported in several types of human cancer. Nevertheless, the expression profile and biological functions of miR-19b-3p remain unclear in non-small cell lung cancer (NSCLC). The expression level of miR-19b-3p was evaluated in NSCLC tissues and cell lines using qRT-PCR. Survival analysis was performed using Kaplan-Meier curves, while the prognostic significance of miR-19b-3p was analyzed using Cox regression analysis in 80 NSCLC patients. The effects of miR-19b-3p on cell proliferation and invasion capacities were analyzed using CCK-8, crystal violet, and transwell assays. Target genes of miR19b-3p were assessed using luciferase reporter assay, qRT-PCR, Western blot and rescue experiments. MiR19b-3p was found to be upregulated in human NSCLC tissues and cell lines. The expression of miR-19b-3p was observed to be closely associated with TNM stage and metastasis. High expression of miR-19b-3p was found to be capable of predicting poor clinical prognosis in NSCLC patients. Whilst overexpression of miR-19b-3p was demonstrated to promote the proliferation and invasion of NSCLC cells, knockdown of miR-19b-3p showed an opposite inhibitory effect. Bioinformatics analysis and luciferase reporter assays confirmed that HOXA9 is a direct target of miR-19b-3p. Functional assays demonstrated that NSCLC cell proliferation and invasion were promoted by miR-19b-3p via negative regulation of HOXA9. Finally, overexpression of HOXA9 was shown to partially reverse the tumor promoting effect of miR-19b-3p. This study indicates that miR-19b-3p is a crucial prognostic biomarker of NSCLC, and that targeting of the miR-19b-3p/HOXA9 axis may be a promising strategy in NSCLC therapy. |
Autor/es principal/es: | Li, Zu Lei Li, Dong Yin, Guo Qiang |
URI: | http://hdl.handle.net/10201/128865 |
DOI: | https://doi.org/10.14670/HH-18-448 |
Tipo de documento: | info:eu-repo/semantics/article |
Número páginas / Extensión: | 11 |
Derechos: | info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional |
Aparece en las colecciones: | Vol.37, nº8 (2022) |
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Li-37-779-789-2022.pdf | 5,71 MB | Adobe PDF | ![]() Visualizar/Abrir |
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