» Articles » PMID: 31772330

Overexpressed MiR-200a Promotes Bladder Cancer Invasion Through Direct Regulating Dicer/miR-16/JNK2/MMP-2 Axis

Overview
Journal Oncogene
Date 2019 Nov 28
PMID 31772330
Citations 29
Authors
Affiliations
Soon will be listed here.
Abstract

Invasive bladder cancer (BC) is one of the most lethal malignant urological tumors. Although miR-200a has been reported as an onco-miRNA that targets the PTEN gene in endometrioid carcinoma, its biological significance in BC invasion has been poorly explored. In the current study, we found that miR-200a was markedly overexpressed in both human BC tissues and BBN-induced muscle-invasive BC tissues. We further showed that miR-200a overexpression specifically promoted human BC cell invasion, but not migration, via transcriptional upregulation of matrix metalloproteinase (MMP)-2. Mechanistic studies indicated that the increased phosphorylation of c-Jun mediated the increasing levels of MMP-2 mRNA transcription. Further investigation revealed that Dicer was decreased in miR-200a overexpressed BC cells; this resulted in inhibition of miR-16 maturation and consequently led to increased JNK2 protein translation and c-Jun activation. Taken together, the studies here showed that miR-200a overexpression inhibited Dicer expression, in turn, resulted in inhibition of miR-16 maturation, leading to upregulation of JNK2 expression, c-Jun phosphorylation, MMP-2 transcription and, ultimately, BC invasion. Collectively, these results demonstrate that miR-200a is an onco-miRNA that is a positive regulator for BC invasion. This finding could be very useful in the ongoing development of new strategies to treat invasive BC patients.

Citing Articles

Natural compounds as modulators of miRNAs: a new frontier in bladder cancer treatment.

Abulsoud A, Aly S, Mageed S, Abdelmaksoud N, El-Dakroury W, Mohammed O Med Oncol. 2025; 42(3):56.

PMID: 39883227 DOI: 10.1007/s12032-025-02613-8.


Expression of some circulating microRNAs as predictive biomarkers for prognosis and treatment response in glioblastoma.

Ali E, Ahmed M, Shawki M, El Arab L, Khalifa M, Swellam M Sci Rep. 2025; 15(1):1933.

PMID: 39809835 PMC: 11733229. DOI: 10.1038/s41598-024-83800-x.


Identification of Key Biomarkers Associated with Glioma Hemorrhage: Evidence from Bioinformatic Analysis and Clinical Validation.

Shen Z, Li T, Yang B J Mol Neurosci. 2025; 75(1):6.

PMID: 39808230 DOI: 10.1007/s12031-024-02294-4.


Restoration of miR-200 expression suppresses proliferation and mobility of pancreatic cancer cell.

Wang G, Pan L, Guo R Naunyn Schmiedebergs Arch Pharmacol. 2025; .

PMID: 39754677 DOI: 10.1007/s00210-024-03717-0.


Isorhapontigenin inhibition of basal muscle-invasive bladder cancer attributed to its downregulation of SNHG1 and DNMT3b.

Meng H, Yang R, Lin Q, Du W, Chu Z, Cao Y BMC Cancer. 2024; 24(1):737.

PMID: 38879516 PMC: 11180402. DOI: 10.1186/s12885-024-12490-5.


References
1.
Burger M, Catto J, Dalbagni G, Grossman H, Herr H, Karakiewicz P . Epidemiology and risk factors of urothelial bladder cancer. Eur Urol. 2012; 63(2):234-41. DOI: 10.1016/j.eururo.2012.07.033. View

2.
Antoni S, Ferlay J, Soerjomataram I, Znaor A, Jemal A, Bray F . Bladder Cancer Incidence and Mortality: A Global Overview and Recent Trends. Eur Urol. 2016; 71(1):96-108. DOI: 10.1016/j.eururo.2016.06.010. View

3.
Kaufman D, Shipley W, Feldman A . Bladder cancer. Lancet. 2009; 374(9685):239-49. DOI: 10.1016/S0140-6736(09)60491-8. View

4.
van Rhijn B, Burger M, Lotan Y, Solsona E, Stief C, Sylvester R . Recurrence and progression of disease in non-muscle-invasive bladder cancer: from epidemiology to treatment strategy. Eur Urol. 2009; 56(3):430-42. DOI: 10.1016/j.eururo.2009.06.028. View

5.
Pectasides D, Pectasides M, Nikolaou M . Adjuvant and neoadjuvant chemotherapy in muscle invasive bladder cancer: literature review. Eur Urol. 2005; 48(1):60-7. DOI: 10.1016/j.eururo.2005.03.025. View