Interfaces Between the DNA Damage Response and Anti-cancer Immunity

Area of Science:

• Oncology
• Immunology
• Radiation Oncology

Background:

• The DNA damage response (DDR) and immune system interactions are critical in cancer.
• Radiotherapy, a cornerstone of cancer treatment, induces DNA damage, influencing the tumor microenvironment.

Purpose of the Study:

• To explore the complex relationship between DNA damage (DDR) and immune responses in cancer.
• To review how DNA damage and conventional therapies modulate anti-tumor immunity.
• To highlight therapeutic strategies combining DDR and radiation for enhanced cancer treatment.

Main Methods:

• Literature review and synthesis of preclinical and clinical data.
• Analysis of the immunomodulatory effects of DNA-damaging agents.
• Examination of DDR status as a predictive biomarker.

Main Results:

• DNA damage elicits complex immunomodulatory effects, with both stimulatory and suppressive impacts on anti-tumor immunity.
• Conventional DNA-damaging therapies can alter immune responses.
• Genomic instability and DDR status are emerging as predictive biomarkers for treatment response.
• Combined DDR-targeting agents and radiation demonstrate radiosensitizing and immunomodulatory potential.

Conclusions:

• The interplay between DDR and immunity presents significant therapeutic opportunities in oncology.
• Targeting DDR in conjunction with radiotherapy is a promising strategy for enhancing anti-tumor immunity and treatment efficacy.