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Aberrant regulation and function of microRNAs in cancer

Brian D Adams1, Andrea L Kasinski2, Frank J Slack1

  • 1Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520, USA.

Current Biology : CB
|August 20, 2014
PubMed

Insights

MicroRNAs (miRNAs) are small non-coding RNAs that can act as oncogenes or tumor suppressors. Their misexpression and dysregulation are increasingly recognized as key contributors to cancer development and progression.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Malignant neoplasms remain a leading cause of death in the US, driving research into novel therapeutic strategies.
  • Decades of research have focused on genetic and cellular mechanisms of cancer, including DNA-level abnormalities and post-translational modifications.
  • Recent discoveries highlight small non-coding RNA molecules, microRNAs (miRNAs), as significant contributors to neoplastic diseases.

Purpose of the Study:

  • To review the role of microRNAs (miRNAs) in cancer, focusing on their function as oncogenes or tumor suppressors.
  • To explore how miRNA misexpression and dysregulation contribute to tumorigenesis.
  • To examine recently identified regulatory mechanisms affecting miRNA expression, processing, and function in cancer.

Main Methods:

  • Review of current scientific literature on microRNA biology and cancer.
  • Analysis of genetic and molecular mechanisms underlying miRNA regulation in neoplastic diseases.
  • Focus on aberrant regulatory pathways impacting miRNA expression and function.

Main Results:

  • MicroRNAs (miRNAs) can function as either oncogenes or tumor suppressors.
  • Misexpression and dysregulation of miRNAs are implicated in the development and progression of various cancers.
  • Altered regulatory mechanisms significantly impact miRNA expression, processing, and function in the tumorigenic process.

Conclusions:

  • MicroRNAs (miRNAs) represent a critical class of gene regulatory molecules in cancer.
  • Understanding miRNA dysregulation offers potential for novel cancer therapeutic strategies.
  • Further research into miRNA regulatory networks is essential for advancing cancer treatment.

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