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MicroRNA-934 promotes colorectal cancer cell proliferation by directly targeting Dickkopf-related protein 2

Wei Liu1, Longan Ma1, Jie Zhang1

  • 1Department of General Surgery, Shaanxi Provincial Cancer Hospital, Xi'an, Shaanxi 710061, P.R. China.

Experimental and Therapeutic Medicine
|August 10, 2021
PubMed

Insights

MicroRNAs (miRNAs) play a role in colorectal cancer. This study found that miR-934 promotes cancer by targeting DDK2, suggesting miR-934 as a potential biomarker for colorectal cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • MicroRNA (miRNA) dysregulation is increasingly linked to colorectal cancer development.
  • The specific roles of many differentially expressed miRNAs in colorectal cancer remain unclear.

Purpose of the Study:

  • To investigate the function of miR-934 in colorectal cancer.
  • To identify novel target genes of miR-934 and elucidate its mechanism of action in colorectal cancer cells.

Main Methods:

  • Bioinformatic analysis of microarray data.
  • Reverse transcription-quantitative PCR (RT-qPCR) for gene expression analysis.
  • Functional assays including gene knockdown and pathway analysis.

Main Results:

  • miR-934 expression was found to be upregulated in colorectal cancer samples.
  • Dickkopf-related protein 2 (DDK2) was identified as a direct target of miR-934.
  • miR-934 promoted colorectal cancer cell proliferation by inhibiting DDK2 and inactivating the Wnt signaling pathway.
  • DDK2 silencing reversed the effects of miR-934 inhibition on cell proliferation and apoptosis.

Conclusions:

  • The miR-934/DDK2 axis plays a significant role in regulating colorectal cancer cell proliferation.
  • miR-934 may serve as a potential diagnostic biomarker for colorectal cancer patients.
Keywords:
Dickkopf-related protein 2colorectal cancermicroRNA-934

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