The Intersection of DNA Damage Response and Ferroptosis-A Rationale for Combination Therapeutics

Area of Science:

• Cellular Biology
• Biochemistry
• Oncology

Background:

• Ferroptosis is an iron-dependent cell death marked by lipid peroxidation.
• Its interactions with other biological pathways are increasingly recognized.
• The interplay between ferroptosis, DNA damage response (DDR), and key proteins like ATM/ATR and p53 is a recent focus.

Purpose of the Study:

• To review the biological crosstalk between DDR and ferroptosis.
• To explore the noncanonical mechanisms mediating this interaction.
• To discuss clinical applications, including combination therapies and targeted inhibitors.

Main Methods:

• Literature review of recent studies on ferroptosis and DDR.
• Analysis of molecular mechanisms linking DNA damage signaling to ferroptosis.
• Discussion of preclinical and clinical data on therapeutic interventions.

Main Results:

• DDR pathways, particularly ATM/ATR and p53, are intricately linked to ferroptosis regulation.
• Noncanonical mechanisms predominantly mediate the crosstalk between DDR and ferroptosis.
• Synergistic effects observed when combining ionizing radiation with ferroptosis inducers.

Conclusions:

• The DDR plays a significant role in ferroptosis, offering novel therapeutic targets.
• Combining ionizing radiation and ferroptosis-inducing agents shows promise for cancer treatment.
• ATM/ATR inhibitors may be beneficial in managing ferroptosis-related diseases by modulating cell death.