Mechanisms of Immune Sensing of DNA Damage

J Mol Biol. 2024 Feb 15;436(4):168424. doi: 10.1016/j.jmb.2023.168424. Epub 2023 Dec 29.

Abstract

Genomic stability relies on a multifaceted and evolutionarily conserved DNA damage response (DDR). In multicellular organisms, an integral facet of the DDR involves the activation of the immune system to eliminate cells with persistent DNA damage. Recent research has shed light on a complex array of nucleic acid sensors crucial for innate immune activation in response to oncogenic stress-associated DNA damage, a process vital for suppressing tumor formation. Yet, these immune sensing pathways may also be co-opted to foster tolerance of chromosomal instability, thereby driving cancer progression. This review aims to provide an updated overview of how the innate immune system detects and responds to DNA damage. An improved understanding of the regulatory intricacies governing this immune response may uncover new avenues for cancer prevention and therapeutic intervention.

Keywords: DNA Damage; RNA sensing; cytosolic DNA sensing; immune sensing; sensors of replication-associated DNA damage.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • DNA Damage* / immunology
  • DNA Repair
  • Humans
  • Innate Immunity Recognition*
  • Neoplasms* / genetics
  • Neoplasms* / immunology
  • Neoplasms* / pathology