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Inflammatory signaling in genomically instable cancers.

Francien Talens1, Marcel A T M Van Vugt1

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Cell Cycle (Georgetown, Tex.)
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Genomic instability in tumors activates inflammatory signaling via the cGAS/STING pathway, impacting cancer growth and immune evasion. Targeting this pathway offers new therapeutic strategies for cancer treatment.

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Genomic instabilitySTINGcGAScytoplasmic DNAinflammatory signalinginterferon response

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Area of Science:

  • Oncology
  • Immunology
  • Molecular Biology

Background:

  • Genomic instability is a hallmark of cancer.
  • The cyclic GMP-AMP synthase (cGAS)/stimulator of interferon genes (STING) pathway is a key mediator of innate immunity.
  • Emerging evidence links genomic instability to cGAS/STING pathway activation in tumors.

Purpose of the Study:

  • To review the mechanisms by which genomic instability activates cGAS/STING signaling.
  • To discuss the consequences of this signaling on tumor development and the tumor microenvironment.
  • To explore tumor cell evasion strategies and therapeutic targeting of the cGAS/STING pathway.

Main Methods:

  • Literature review of recent studies on genomic instability, cGAS/STING signaling, and cancer.
  • Analysis of the interplay between DNA damage, inflammatory signaling, and immune responses in cancer.
  • Synthesis of information on therapeutic strategies targeting the cGAS/STING pathway.

Main Results:

  • Genomic instability triggers cGAS/STING-mediated inflammatory signaling through various mechanisms.
  • This signaling influences tumor progression and shapes the tumor microenvironment.
  • Tumor cells have developed mechanisms to evade immune surveillance activated by cGAS/STING.
  • The cGAS/STING pathway represents a promising target for cancer therapy.

Conclusions:

  • Genomic instability is a critical driver of cGAS/STING pathway activation in cancer.
  • Understanding these interactions is crucial for developing novel cancer treatments.
  • Targeting cGAS/STING signaling holds potential for enhancing therapeutic efficacy and overcoming immune evasion.