Laboratory Medicine ›› 2020, Vol. 35 ›› Issue (12): 1213-1219.DOI: 10.3969/j.issn.1673-8640.2020.12.003

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Role of exosome-derived circular RNA in tumor diagnosis and treatment

YANG Wenjing1, LÜ Lihua1, YAO Jiayi1, WANG Hao1, ZHANG Chunyan2, WANG Beili1, PAN Baishen1, GUO Wei1()   

  1. 1. Department of Clinical Laboratory,Zhongshan Hospital,Fudan University,Shanghai 200032,China
    2. Department of Clinical Laboratory,Xiamen Branch,Zhongshan Hospital,Fudan University,Xiamen 361015,Fujian,China
  • Received:2020-03-05 Online:2020-12-30 Published:2020-12-31

Abstract:

Exosomes refer to small vesicles secreted by cells,containing various molecules and playing a role in intercellular communication. Circular RNA is a class of nucleic acid molecules contained in exosomes. It forms circular structures by covalent bonds without a 5' cap and a 3' poly(A) tail,mainly functioning as miRNA sponges and playing an important regulatory role in gene expression. Exosome-derived circRNA can promote tumor proliferation,metastasis and drug resistance,which are enriched in plasma and may be served as biomarkers for diagnosis and prognosis in early tumor. This review highlights the biological functions of exosomal circRNA in the onset and development of different tumors and provides a reference for the application of exosome-derived circRNA in tumor diagnosis and treatment.

Key words: Exosome, Circular RNA, Tumor

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