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Nucleic acid induced interferon and inflammasome responses in regulating host defense to gastrointestinal viruses

Hanne Dubois (UGent) , Geert van Loo (UGent) and Andy Wullaert (UGent)
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Abstract
The gut bacterial and fungal communities residing in the gastrointestinal tract have undisputed far-reaching effects in regulating host health. In the meantime, however, metagenomic sequencing efforts are revealing enteric viruses as the most abundant dimension of the intestinal gut ecosystem, and the first gut virome-wide association studies showed that inflammatory bowel disease as well as type 1 diabetes could be linked to the presence or absence of particular viral inhabitants in the intestine. In line with the genetic component of these human diseases, mouse model studies demonstrated how beneficial functions of a resident virus can switch to detrimental inflammatory effects in a genetically predisposed host. Such viral-induced intestinal immune disturbances are also recapitulated by several gastrointestinal infectious viruses such as rotavirus and human norovirus. This wide range of viral effects on intestinal immunity emphasizes the need for understanding the innate immune responses to gastrointestinal viruses. Numerous nucleic acid sensors such as DexD/H helicases and AIM2 serve as cytosolic viral guardians to induce antiviral interferon and/or pro-inflammatory inflammasome responses. In both cases, pioneering examples are emerging in which RNA helicases cooperate with particular Nod-like receptors to trigger these cellular responses to enteric viruses. Here we summarize the reported beneficial versus detrimental effects of enteric viruses in the intestinal immune system, and we zoom in on the mechanisms through which sensing of nucleic acids from these enteric viruses trigger interferon and inflammasome responses.
Keywords
Interferon, Inflammasome, DexD helicase, Nod-like receptor, RIG-I-like receptor, Intestinal immunity, Rotavirus, Norovirus, Virome

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Chicago
Dubois, Hanne, Geert van Loo, and Andy Wullaert. 2019. “Nucleic Acid Induced Interferon and Inflammasome Responses in Regulating Host Defense to Gastrointestinal Viruses.” Ed. Claire Vanpouille and Lorenzo Galluzzi. International Review of Cell and Molecular Biology 345: 137–171.
APA
Dubois, Hanne, van Loo, G., & Wullaert, A. (2019). Nucleic acid induced interferon and inflammasome responses in regulating host defense to gastrointestinal viruses. (C. Vanpouille & L. Galluzzi, Eds.)International Review of Cell and Molecular Biology, 345, 137–171.
Vancouver
1.
Dubois H, van Loo G, Wullaert A. Nucleic acid induced interferon and inflammasome responses in regulating host defense to gastrointestinal viruses. Vanpouille C, Galluzzi L, editors. International Review of Cell and Molecular Biology. San Diego, CA, USA: Elsevier Academic Press; 2019;345:137–71.
MLA
Dubois, Hanne, Geert van Loo, and Andy Wullaert. “Nucleic Acid Induced Interferon and Inflammasome Responses in Regulating Host Defense to Gastrointestinal Viruses.” Ed. Claire Vanpouille & Lorenzo Galluzzi. International Review of Cell and Molecular Biology 345 (2019): 137–171. Print.
@article{8613433,
  abstract     = {The gut bacterial and fungal communities residing in the gastrointestinal tract have undisputed far-reaching effects in regulating host health. In the meantime, however, metagenomic sequencing efforts are revealing enteric viruses as the most abundant dimension of the intestinal gut ecosystem, and the first gut virome-wide association studies showed that inflammatory bowel disease as well as type 1 diabetes could be linked to the presence or absence of particular viral inhabitants in the intestine. In line with the genetic component of these human diseases, mouse model studies demonstrated how beneficial functions of a resident virus can switch to detrimental inflammatory effects in a genetically predisposed host. Such viral-induced intestinal immune disturbances are also recapitulated by several gastrointestinal infectious viruses such as rotavirus and human norovirus. This wide range of viral effects on intestinal immunity emphasizes the need for understanding the innate immune responses to gastrointestinal viruses. Numerous nucleic acid sensors such as DexD/H helicases and AIM2 serve as cytosolic viral guardians to induce antiviral interferon and/or pro-inflammatory inflammasome responses. In both cases, pioneering examples are emerging in which RNA helicases cooperate with particular Nod-like receptors to trigger these cellular responses to enteric viruses. Here we summarize the reported beneficial versus detrimental effects of enteric viruses in the intestinal immune system, and we zoom in on the mechanisms through which sensing of nucleic acids from these enteric viruses trigger interferon and inflammasome responses.},
  author       = {Dubois, Hanne and van Loo, Geert and Wullaert, Andy},
  editor       = {Vanpouille, Claire and Galluzzi, Lorenzo},
  isbn         = {9780128159811},
  issn         = {1937-6448},
  journal      = {International Review of Cell and Molecular Biology},
  language     = {eng},
  pages        = {137--171},
  publisher    = {Elsevier Academic Press},
  title        = {Nucleic acid induced interferon and inflammasome responses in regulating host defense to gastrointestinal viruses},
  url          = {http://dx.doi.org/10.1016/bs.ircmb.2018.08.003},
  volume       = {345},
  year         = {2019},
}

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