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Erschienen in: International Urology and Nephrology 10/2018

16.08.2018 | Urology - Original Paper

miR-129-5p inhibits gemcitabine resistance and promotes cell apoptosis of bladder cancer cells by targeting Wnt5a

verfasst von: Jingyi Cao, Qichao Wang, Gang Wu, Shasha Li, Qian Wang

Erschienen in: International Urology and Nephrology | Ausgabe 10/2018

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Abstract

Objectives

Gemcitabine resistance is a major obstacle for effective treatment of bladder cancer. This study was aimed to investigate the potential role of miR-129-5p in the development of gemcitabine resistance in bladder cancer cells and its underlying mechanism.

Methods

The IC50 for gemcitabine in 20 bladder cancer cells was first profiled from Genomics of Drug Sensitivity in Cancer. miR-129-5p level and gene mRNA expression were detected using quantitative real-time PCR (qRT-PCR). Cell viability, apoptosis, and gene protein level were assessed by MTT, flow cytometry, and Western blot, respectively. Regulatory relationship between Wnt5a and miR-129-5p was determined using luciferase reporter assay.

Results

We found that down-regulated miR-129-5p level contributed to gemcitabine resistance in bladder cancer cells and tissues. We also observed restoration of miR-129-5p could significantly increase cell sensitivity to gemcitabine and promote cell apoptosis. Mechanism analysis revealed that Wnt5a is a direct target gene of miR-129-5p and knock-down of Wnt5a reversed gemcitabine resistance.

Conclusions

Taken together, our findings indicate that miR-129-5p and Wnt5a may be novel therapeutic targets for overcoming gemcitabine resistance in bladder cancer treatment.
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Metadaten
Titel
miR-129-5p inhibits gemcitabine resistance and promotes cell apoptosis of bladder cancer cells by targeting Wnt5a
verfasst von
Jingyi Cao
Qichao Wang
Gang Wu
Shasha Li
Qian Wang
Publikationsdatum
16.08.2018
Verlag
Springer Netherlands
Erschienen in
International Urology and Nephrology / Ausgabe 10/2018
Print ISSN: 0301-1623
Elektronische ISSN: 1573-2584
DOI
https://doi.org/10.1007/s11255-018-1959-x

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