Related Experiment Video
Updated: Sep 15, 2025

In Silico Identification and Characterization of circRNAs During Host-Pathogen Interactions
Published on: October 21, 2022
Dynamic modifications of circular RNAs drive oncogenesis
Jiaojiao Dai1,2, Zhe Wang1,2, Xiaoxun Cheng3
1School of Pharmacy and Science, Anhui Medical University, Hefei, China.
Abstract:
Circular RNAs (circRNAs) are a class of covalently closed non-coding RNAs that regulate the progression of multiple cancers. Recent studies have revealed the presence of several post-transcriptional modifications such as N6-methyladenosine (m6A), N1-methyladenosine (m1A), 5-methylcytosine (m5C), N4-acetylcytidine (ac4C), and N7-methylguanosine (m7G) on circRNAs. This review synthesizes the results of articles retrieved through systematic searches of PubMed and Web of science databases, mainly focusing on circRNA modifications in cancers. These modifications affect the biogenesis, metabolism, stability, and function of circRNAs in cancers, highlighting the critical roles of circRNAs modifications in cancers. Moreover, circRNAs crosstalk with epigenetic modifications of mRNA across various cancers, offering new perspectives for cancer therapy. Innovations in detection techniques, such as anti-modifying antibodies and mass spectrometry, have improved the identification and sensitivity of epigenetically modified circRNAs. Emerging technologies including artificial intelligence (AI)-based bioinformatics algorithms will accelerate the development of RNA epigenetic modifications-based precision therapies. Herein, we summarize a range of epigenetically modified circRNAs and their future research directions. We hope to develop clinical protocols that targeting circRNAs modification for the treatment of refractory malignancies.
Insights
Circular RNAs (circRNAs) modifications are crucial in cancer progression. Targeting these RNA epigenetic modifications offers new avenues for refractory cancer therapies.
Area of Science:
- Oncology
- Molecular Biology
- Epigenetics
Background:
- Circular RNAs (circRNAs) are non-coding RNAs involved in cancer progression.
- Post-transcriptional modifications like m6A, m1A, m5C, ac4C, and m7G are found on circRNAs.
- These modifications influence circRNA biogenesis, metabolism, stability, and function in cancer.
Purpose of the Study:
- To review and synthesize current research on circRNA modifications in various cancers.
- To highlight the role of circRNA modifications in cancer progression and potential therapeutic strategies.
- To discuss emerging technologies for detecting and targeting modified circRNAs.
Main Methods:
- Systematic literature search of PubMed and Web of Science databases.
- Review and synthesis of studies focusing on circRNA modifications in cancer.
- Analysis of innovations in detection techniques and bioinformatics algorithms.
Main Results:
- CircRNA modifications significantly impact cancer development and progression.
- Crosstalk between circRNA and mRNA epigenetic modifications provides new therapeutic insights.
- Advanced detection methods and AI-based algorithms are improving the study of modified circRNAs.
Conclusions:
- CircRNA modifications are critical regulators in cancer, offering potential therapeutic targets.
- Targeting circRNA modifications, alongside mRNA epigenetics, presents a promising approach for precision cancer therapy.
- Future research directions include developing clinical protocols for targeting circRNA modifications in refractory malignancies.
Related Concept Videos
The Ras Gene
Ras is a...
Rous Sarcoma Virus (RSV) and Cancer
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Small GTPases - Ras and Rho
Three regulatory proteins control their activity:
Adaptive Mechanisms in Cancer Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Abnormal Proliferation

