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R-loops and small RNA regulatory interactions: mechanisms and clinical perspectives
Si-Yao Wang1, Ya-Ni Liu1, Si-Qiao Zhao1
1China Medical University, Shengjing Hospital of China Medical University, Shenyang, China.
Frontiers in Cell and Developmental Biology
|January 2, 2026
Summary
R-loops and small RNAs are vital for genome stability but can cause damage when dysregulated. Their crosstalk offers therapeutic potential for cancer and neurodegenerative diseases.
Area of Science:
- Molecular Biology
- Genetics
- Epigenetics
Background:
- R-loops are RNA-DNA hybrid structures crucial for transcription.
- Small RNAs regulate gene expression and genomic functions.
- Dysregulation of R-loops and small RNAs contributes to DNA damage and genomic instability.
Purpose of the Study:
- To review recent advances in understanding the interplay between R-loops and small RNAs.
- To highlight their synergistic roles in maintaining genome stability.
- To explore their therapeutic potential in oncology and neurodegeneration.
Main Methods:
- Literature review of recent advances in R-loop and small RNA research.
- Discussion of emerging clinical trial data.
- Proposal of a novel model integrating R-loop dynamics and small RNA epigenetic regulation.
Main Results:
- R-loops and small RNAs have synergistic roles in genome maintenance.
- Aberrant R-loop formation and small RNA dysregulation can lead to DNA damage.
- Emerging data supports the therapeutic potential of targeting these pathways.
Conclusions:
- The crosstalk between R-loops and small RNAs is critical for genome stability.
- Targeting R-loop dynamics and small RNA pathways holds promise for treating cancer and neurodegenerative diseases.
- A novel integrated model provides a framework for future research and therapeutic development.
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