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Identification of Circular RNAs using RNA Sequencing
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Circular RNA in cancer.

Vanessa M Conn1, Arul M Chinnaiyan2,3,4,5, Simon J Conn6

  • 1Flinders Health and Medical Research Institute, College of Medicine and Public Health, Flinders University, South Australia, Australia.

Nature Reviews. Cancer
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Summary

Circular RNAs (circRNAs) play a significant role in cancer development. This review explores their functions, expression, and potential as cancer biomarkers and therapeutic targets.

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Area of Science:

  • Molecular Biology
  • Oncology
  • Genetics

Background:

  • Circular RNAs (circRNAs) are a unique class of RNA molecules with increasing recognition in cancer research.
  • While distinct in formation and abundance from linear mRNA, circRNAs share analogous interacting partners and cellular functions in oncogenesis.
  • The high diversity and stability of circRNAs suggest a substantial role in influencing all stages of cancer development.

Purpose of the Study:

  • To provide a comprehensive overview of circRNAs in cancer.
  • To discuss the spatiotemporal expression, biogenesis factor mutations, and functional roles of circRNAs across cancer stages.
  • To highlight functional circRNAs in specific cancers that meet stringent criteria for therapeutic exploitation.

Main Methods:

  • Review of existing literature on circRNAs in cancer.
  • Analysis of circRNA spatiotemporal expression patterns.
  • Examination of mutations in circRNA biogenesis factors.
  • Identification of functional circRNAs based on physical association with targets and stoichiometric abundance.

Main Results:

  • CircRNAs exhibit diverse variants and hyperstability, enabling influence over oncogenesis.
  • Specific functional circRNAs have been identified in various cancers, demonstrating physical interactions with targets.
  • CircRNA abundance at stoichiometrically valid quantities supports their functional significance.

Conclusions:

  • CircRNAs represent a critical area of cancer research with significant therapeutic potential.
  • Understanding circRNA functions is essential for developing novel biomarkers and anticancer agents.
  • Further research into circRNAs can lead to innovative strategies for cancer diagnosis and treatment.