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Updated: Apr 3, 2026

Analysis of Combinatorial miRNA Treatments to Regulate Cell Cycle and Angiogenesis
Published on: March 30, 2019
MiRNA-29c regulates cell growth and invasion by targeting CDK6 in bladder cancer
Xin Zhao1, Junliang Li1, Shengsong Huang1
1Department of Urology, Tongji Hospital, Tongji University School of Medicine Shanghai 200433, People's Republic of China.
Background:
MicroRNAs are a class of endogenous single strand non-coding RNAs that are involved in many important physiological and pathological processes. The purpose of this study was to investigate the expression levels of miR-29c in human bladder cancer and its potential role in disease pathogenesis.
Methods:
The expression level of miR-29c was measured in 40 bladder cancer specimens and adjacent normal breast tissues by quantitative polymerase chain reaction (qPCR). Over-expression of miR-29c was established by transfecting mimics into T24.MTT assays, colony formation assays, transwell assays and cell cycle assays were used to explore the potential function of miR-29c inT24 bladder cancer cells. Luciferase reporter assays were performed to analyze the regulation of putative target of miR-29c. The effects of modulating miR-29c on endogenous levels of this target were subsequently confirmed via qRT-PCR and Western blot.
Results:
The expression of miR-29c in bladder cancer specimens was lower than adjacent normal tissues (P<0.01). Overexpression of miR-29c inhibited cellular growth, suppressed cellular migration and caused an accumulation of cells in the G1 phase of the cell cycle, Dual-luciferase reporter assays showed that miR-29c binds the 3'-untranslated region (3'-UTR) of CDK6, suggesting that CDK6 is a direct target of miR-29c. Furthermore, through qPCR and Western blot assays confirmed that overexpression of miR-29c reduced CDK6 mRNA and protein levels.
Conclusions:
miR-29c could inhibit the proliferation, migration and invasion of bladder cancer cells via regulating CDK6. in the future, it could be used as a therapeutic target for the treatment of bladder cancer.
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