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NOD2 Expression in Intestinal Epithelial Cells Protects Toward the Development of Inflammation and Associated Carcinogenesis

  • Ferrand, Audrey
  • Al Nabhani, Ziad
  • Sola Tapias, Nùria
  • Mas, Emmanuel
  • Hugot, Jean-Pierre
  • Barreau, Frederick
Publication Date
Jan 01, 2019
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Although the association between Crohn's disease susceptibility and nucleotide-binding oligomerization domain 2 polymorphisms was shown in 2001, the mechanisms involved remain largely unknown. In this review, we report the role of nucleotide-binding oligomerization domain 2 in epithelial cells in the development of colitis and associated carcinogenesis. Nucleotide-binding oligomerization domain 2 (NOD2) is an intracellular pattern recognition receptor that senses bacterial peptidoglycan-conserved motifs in cytosol and stimulates host immune response including epithelial and immune cells. The association of NOD2 mutations with a number of inflammatory pathologies including Crohn's disease (CD), graft-versus-host diseases, or Blau syndrome, highlights its pivotal role in inflammatory response and the associated-carcinogenesis development. Since its identification in 2001 and its association with CD, the role of NOD2 in epithelial cells and immune cells has been investigated extensively but the precise mechanism by which NOD2 mutations lead to CD and the associated carcinogenesis development is largely unknown. In this review, we present and discuss recent developments about the role of NOD2 inside epithelial cells on the control of the inflammatory process and its linked carcinogenesis development.

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