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Updated: Sep 26, 2025

Identification of Circular RNAs using RNA Sequencing
Published on: November 14, 2019
Circular RNA and Its Roles in the Occurrence, Development, Diagnosis of Cancer
Yue Zhang1, Xinyi Zhang1, Yumeng Xu1
1Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China.
Abstract:
Circular RNAs (circRNAs) are non-coding single-stranded covalently closed circular RNA, mainly produced by reverse splicing of exons of precursor mRNAs (pre-mRNAs). The characteristics of high abundance, strong specificity, and good stability of circRNAs have been discovered. A large number of studies have reported its various functions and mechanisms in biological events, such as the occurrence and development of cancer. In this review, we focus on the classification, characterization, biogenesis, functions of circRNAs, and the latest advances in cancer research. The development of circRNAs as biomarkers in cancer diagnosis and treatment also provides new ideas for studying circRNAs research.
Insights
Circular RNAs (circRNAs) are stable molecules involved in biological events, including cancer. This review details circRNA functions and their potential as cancer biomarkers for diagnosis and treatment.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- Circular RNAs (circRNAs) are non-coding RNAs with high abundance, specificity, and stability.
- They are primarily formed through the reverse splicing of precursor mRNAs.
- circRNAs play crucial roles in various biological processes, notably in cancer development.
Purpose of the Study:
- To review the classification, characterization, biogenesis, and functions of circRNAs.
- To highlight the latest advancements in circRNA research concerning cancer.
- To explore the potential of circRNAs as biomarkers for cancer diagnosis and therapy.
Main Methods:
- Literature review of existing studies on circRNAs and cancer.
- Analysis of circRNA classification, biogenesis pathways, and functional mechanisms.
- Synthesis of current findings on circRNAs in cancer research and biomarker development.
Main Results:
- circRNAs exhibit diverse functions and mechanisms relevant to biological events, including cancer.
- Significant progress has been made in understanding circRNA roles in cancer occurrence and progression.
- circRNAs show promise as novel biomarkers for cancer detection and treatment strategies.
Conclusions:
- circRNAs are critical regulators in biological systems and disease.
- Further research into circRNAs offers new avenues for cancer diagnostics and therapeutics.
- The stability and specificity of circRNAs make them valuable targets for future studies.
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