Circular RNAs in gastrointestinal cancer: Current knowledge, biomarkers and targeted therapy (Review)

Xiaorui Zhao1, Yue Wang1, Qiongfang Yu2

  • 1Department of Pathogen Biology and Immunology, Medical College of Nanchang University, Nanchang, Jiangxi 330006, P.R. China.

Insights

Circular RNAs (circRNAs) are novel non-coding RNAs with roles in cancer. This review summarizes circRNA biogenesis, function, and involvement in gastrointestinal cancer pathways, highlighting their diagnostic and therapeutic potential.

Area of Science:

  • Molecular Biology
  • Genetics
  • Oncology

Background:

  • Circular RNAs (circRNAs) are endogenous non-coding RNAs formed by exon or intron cyclization.
  • They are stable, conserved, and specifically expressed in mammalian cells.
  • circRNAs can act as microRNA sponges, regulating gene expression and influencing biological processes like tumor progression.

Purpose of the Study:

  • To review the biogenesis, classification, and functions of circRNAs in tumors.
  • To discuss the role of circRNAs in signal transduction pathways relevant to gastrointestinal cancer.
  • To highlight the potential of circRNAs as biomarkers and therapeutic targets in cancer.

Main Methods:

  • Literature review of circRNAs in cancer.
  • Analysis of circRNA biogenesis and regulatory mechanisms.
  • Discussion of circRNA involvement in gastrointestinal cancer signaling pathways.

Main Results:

  • circRNAs play significant roles in tumor proliferation, invasion, metastasis, and apoptosis.
  • Specific circRNAs are implicated in various gastrointestinal cancer cellular functions.
  • circRNAs demonstrate potential for clinical diagnosis and treatment of gastrointestinal cancers.

Conclusions:

  • circRNAs are crucial regulators in tumorigenesis and cancer progression.
  • Understanding circRNA functions in gastrointestinal cancer offers new avenues for therapeutic intervention.
  • circRNAs hold promise as diagnostic and therapeutic agents in oncology.

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