Diverse roles of STING-dependent signaling on the development of cancer

Research output: Contribution to journalArticle

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Abstract

Stimulator of interferon genes (STING) is a cellular sensor that controls cytosolic DNA-activated innate immune signaling. We have previously demonstrated that STING-deficient mice are resistant to carcinogen-induced skin cancer, similar to myeloid differentiation primary response gene 88 (MyD88) deficient mice, since the production of STING-dependent DNA-damage-induced proinflammatory cytokines, that likely require MyD88 signaling to exert their growth-promoting activity, are prevented. In contrast, MyD88-deficient mice are sensitive to colitis-associated cancer (CAC), since selected cytokines generated following DNA-damage also activate repair pathways, which can help prevent tumor development. Here, we demonstrate that STING signaling facilitates wound repair processes and that analogous to MyD88-deficient mice, STING-deficient mice (SKO) are prone to CAC induced by DNA-damaging agents. SKO mice harboring tumors exhibited low levels of tumor-suppressive interleukin-22 binding protein (IL-22BP) compared to normal mice, a cytokine considered critical for preventing colon-related cancer. Our data indicate that STING constitutes a critical component of the host early response to intestinal damage and is essential for invigorating tissue repair pathways that may help prevent tumorigenesis.

Original languageEnglish (US)
Pages (from-to)5302-5308
Number of pages7
JournalOncogene
Volume34
Issue number41
DOIs
StatePublished - Oct 8 2015

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Interferons
Genes
Neoplasms
Colitis
Cytokines
DNA Damage
DNA
Skin Neoplasms
Carcinogens
Colonic Neoplasms
Carrier Proteins
Carcinogenesis
Wounds and Injuries

ASJC Scopus subject areas

  • Molecular Biology
  • Cancer Research
  • Genetics

Cite this

Diverse roles of STING-dependent signaling on the development of cancer. / Ahn, Jeonghyun; Konno, H.; Barber, Glen N.

In: Oncogene, Vol. 34, No. 41, 08.10.2015, p. 5302-5308.

Research output: Contribution to journalArticle

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