International Urology and Nephrology

, Volume 50, Issue 10, pp 1811–1819 | Cite as

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

  • Jingyi Cao
  • Qichao Wang
  • Gang WuEmail author
  • Shasha Li
  • Qian WangEmail author
Urology - Original Paper



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.


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.


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.


Taken together, our findings indicate that miR-129-5p and Wnt5a may be novel therapeutic targets for overcoming gemcitabine resistance in bladder cancer treatment.


Bladder cancer miR-129-5p Gemcitabine resistance Wnt5a Apoptosis 


Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interests.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.


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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Department of UrologyXuzhou Cancer HospitalXuzhouPeople’s Republic of China

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