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Exo-circRNAs: a new paradigm for anticancer therapy

Hetian Bai1,2, Kexin Lei1,2, Fei Huang2

  • 1National Clinical Research Center for Geriatrics and State Key Laboratory of Biotherapy, Cancer Center, West China Hospital, West China Medical School, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China.

Molecular Cancer
|March 31, 2019
PubMed

Insights

Circular RNAs (circRNAs) are noncoding RNAs with therapeutic potential. Exosomal circRNAs (exo-circRNAs) show promise as cancer biomarkers and therapeutic targets, offering new avenues for anticancer strategies.

Area of Science:

  • Molecular Biology
  • Genomics
  • Cancer Research

Background:

  • Circular RNAs (circRNAs) are a novel class of long noncoding RNAs characterized by a unique covalently closed loop structure.
  • CircRNAs are implicated in various biological processes and diseases, particularly cancer, serving as potential diagnostic biomarkers and therapeutic targets.
  • Exosomes, crucial mediators of intercellular communication, can encapsulate circRNAs (exo-circRNAs), influencing cellular functions and disease progression.

Purpose of the Study:

  • To review the biogenesis, characteristics, and functions of circRNAs and exosomes.
  • To provide a comprehensive update on the potential of exo-circRNAs in anticancer therapy.

Main Methods:

  • Literature review of circRNA and exosome research.
  • Analysis of studies investigating exo-circRNAs in cancer.
  • Synthesis of current findings on exo-circRNA biogenesis, detection, and therapeutic applications.

Main Results:

  • CircRNAs possess distinct structural features differentiating them from linear RNAs.
  • Exosomes facilitate the transport of circRNAs between cells, impacting intercellular communication.
  • Exo-circRNAs demonstrate significant potential as non-invasive biomarkers for cancer diagnosis and as therapeutic agents to suppress tumor growth.

Conclusions:

  • CircRNAs and exosomes play critical roles in cellular communication and disease pathogenesis.
  • Exo-circRNAs represent a promising frontier in oncology, offering novel diagnostic and therapeutic strategies for cancer treatment.
Keywords:
Cancer therapyCircRNAsExo-circRNAsExosomes

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