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Updated: Apr 21, 2026
10:38
Large-scale Production of Recombinant RNAs on a Circular Scaffold Using a Viroid-derived System in Escherichia coli
Published on: November 30, 2018
10.2K
Unlocking the potential of engineered circular RNA therapeutics.
Xueyan Zhen1, Mahyar Mahmoudi1, Xinrui Lan1
1Center for Nanomedicine, Department of Anesthesiology, Perioperative, and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115 USA.
Med-X
|April 20, 2026
Summary
Circular RNAs (circRNAs) offer enhanced stability and reduced immunogenicity compared to linear RNA therapeutics. Engineered circRNAs show promise for long-lasting protein expression and broad therapeutic applications.
Area of Science:
- Biochemistry
- Molecular Biology
- RNA Therapeutics
Background:
- Linear RNA therapeutics face limitations like nuclease degradation and immunogenicity.
- Circular RNAs (circRNAs) possess a stable, covalently closed structure resistant to degradation.
- Endogenous circRNAs play roles in gene regulation and are implicated in diseases like cancer.
Purpose of the Study:
- To review the biological characteristics of circRNAs.
- To explore the therapeutic applications of engineered circRNAs.
- To discuss challenges and future directions for circRNA therapeutics.
Main Methods:
- Literature review of circRNA biology and therapeutic development.
- Analysis of advancements in synthetic circRNA engineering.
- Examination of progress in circRNA delivery systems.
Main Results:
- CircRNAs exhibit superior stability and lower immunogenicity than linear RNAs.
- Engineered circRNAs allow for efficient, long-lasting protein expression.
- Progress in delivery technologies enhances circRNA therapeutic potential.
Conclusions:
- CircRNAs represent a promising platform for next-generation RNA therapeutics.
- Overcoming manufacturing and delivery hurdles is key to clinical translation.
- Engineered circRNAs hold potential across oncology, infectious diseases, and immune modulation.
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