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Circular RNAs as Targets for Developing Anticancer Therapeutics
Jaewhoon Jeoung1, Wonho Kim1, Hyein Jo1
1Department of Biochemistry, Kangwon National University, Chuncheon 24341, Republic of Korea.
Abstract:
Circular RNA (CircRNA) is a single-stranded RNA arising from back splicing. CircRNAs interact with mRNA, miRNA, and proteins. These interactions regulate various life processes, including transcription, translation, cancer progression, anticancer drug resistance, and metabolism. Due to a lack of cap and poly(A) tails, circRNAs show exceptional stability and resistance to RNase degradation. CircRNAs exhibit dysregulated expression patterns in various cancers and influence cancer progression. Stability and regulatory roles in cancer progression make circRNAs reliable biomarkers and targets for the development of anticancer therapeutics. The dysregulated expression of circRNAs is associated with resistance to anticancer drugs. Enhanced glycolysis by circRNAs leads to resistance to anticancer drugs. CircRNAs have been known to regulate the response to chemotherapy drugs and immune checkpoint inhibitors. Exogenous circRNAs can encode antigens that can induce both innate and adaptive immunity. CircRNA vaccines on lipid nanoparticles have been shown to enhance the sensitivity of cancer patients to immune checkpoint inhibitors. In this review, we summarize the roles and mechanisms of circRNAs in anticancer drug resistance and glycolysis. This review discusses clinical applications of circRNA vaccines to overcome anticancer drug resistance and enhance the efficacy of immune checkpoint inhibitors. The advantages and disadvantages of circRNA vaccines are also discussed. Overall, this review stresses the potential value of circRNAs as new therapeutic targets and diagnostic/prognostic biomarkers for cancer.
Insights
Circular RNAs (CircRNAs) are stable molecules that drive cancer progression and drug resistance by enhancing glycolysis. CircRNA vaccines show promise in improving cancer therapy efficacy.
Area of Science:
- Molecular Biology
- Oncology
- Biochemistry
Background:
- Circular RNAs (CircRNAs) are RNA molecules formed by back splicing, known for their stability and regulatory roles in cellular processes.
- CircRNAs interact with nucleic acids and proteins, influencing transcription, translation, metabolism, and cancer progression.
- Their stability and involvement in cancer make CircRNAs promising biomarkers and therapeutic targets.
Purpose of the Study:
- To review the mechanisms by which CircRNAs contribute to anticancer drug resistance, particularly through enhanced glycolysis.
- To discuss the clinical applications of CircRNA vaccines in overcoming drug resistance and improving immunotherapy.
- To evaluate the advantages and disadvantages of CircRNA-based vaccines.
Main Methods:
- Literature review of studies on CircRNA function in cancer.
- Analysis of CircRNA roles in glycolysis and drug resistance.
- Examination of CircRNA vaccine development and clinical trial data.
Main Results:
- Dysregulated CircRNA expression is linked to various cancers and anticancer drug resistance.
- CircRNAs promote glycolysis, contributing to resistance against chemotherapeutic agents.
- CircRNA vaccines can induce immune responses and enhance sensitivity to immune checkpoint inhibitors.
Conclusions:
- CircRNAs are critical regulators of anticancer drug resistance and glycolysis.
- CircRNA vaccines represent a novel therapeutic strategy to overcome drug resistance and boost immunotherapy.
- CircRNAs hold significant potential as diagnostic, prognostic, and therapeutic tools in oncology.
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