4.6 Review

The Biological Functions and Clinical Values of Exosomal Circular RNAs in Hepatocellular Carcinoma

Journal

FRONTIERS IN ONCOLOGY
Volume 12, Issue -, Pages -

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fonc.2022.885214

Keywords

hepatocellular carcinoma; exosome; circRNAs; metastasis; prognosis

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Funding

  1. Natural Science Foundation [LY20H200005, LY19H200003]

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Hepatocellular carcinoma (HCC) is the second most common cause of cancer-related deaths worldwide. It is often diagnosed at advanced stages with poor prognosis due to lack of early symptoms. Exosomal circRNAs have been shown to play promoter or suppressor roles in the carcinogenesis, progression, and metastasis of HCC.
Hepatocellular carcinoma (HCC) exacts a heavy disease burden and is currently the second most common cause of cancer-related deaths worldwide. HCC usually lacks obvious symptoms in the early stage, and most HCC patients are diagnosed at advanced stages with poor prognosis. Circular RNAs (circRNAs) are single-stranded RNAs that form covalently closed loops and are stable in exosomes. Exosomes are known as important messengers of the cross-talk between tumor and immune cells. Accumulating studies have demonstrated the promoter or suppressor roles of exosomal circRNAs in the carcinogenesis, progression, and metastasis of HCC. In this review, we summarized the current studies on the biological functions and diagnostic and prognostic values of exosomal circRNAs in HCC progression.

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