Autophagy Roles in the Modulation of DNA Repair Pathways

Area of Science:

• Cellular Biology
• Molecular Biology
• Genetics

Background:

• Autophagy and DNA repair are essential for maintaining cellular homeostasis.
• Dysfunction in these pathways is linked to aging, neurodegeneration, and cancer.
• The interaction between autophagy and DNA damage response (DDR) is complex and bidirectional.

Purpose of the Study:

• To review the intricate relationship between autophagy and DNA repair mechanisms.
• To highlight how autophagy modulates various DNA repair pathways.
• To explore the therapeutic potential of targeting the autophagy-DNA repair interface.

Main Methods:

• Literature review of studies investigating autophagy and DNA repair.
• Analysis of molecular mechanisms linking autophagy to DNA damage response (DDR).
• Examination of evidence for autophagy's role in homologous recombination (HR), base excision repair (BER), nucleotide excision repair (NER), and mismatch repair (MMR).

Main Results:

• Autophagy is activated by DNA lesions and influences DDR components like cell cycle checkpoints and cell death.
• Autophagy positively impacts homologous recombination (HR) DNA repair.
• Evidence suggests autophagy also modulates base excision repair (BER), nucleotide excision repair (NER), and mismatch repair (MMR).

Conclusions:

• Autophagy plays a significant role in regulating multiple DNA repair pathways.
• Targeting the autophagy-DNA repair nexus presents promising therapeutic avenues, particularly for cancer treatment.
• Further research into this interface could unlock novel disease treatments.