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Role of tristetraprolin phosphorylation in paediatric patients with inflammatory bowel disease.

Alessia Di Silvestre | Marianna Lucafò | Letizia Pugnetti | Matteo Bramuzzo | Gabriele Stocco | Egidio Barbi | Giuliana Decorti
World journal of gastroenterology | 2019

Intestinal inflammation and epithelial injury are the leading actors of inflammatory bowel disease (IBD), causing an excessive pro-inflammatory cytokines expression. Tristetraprolin (TTP), an mRNA binding protein, plays a role in regulating the inflammatory factors, recognizing specific sequences on the 3' untranslated region of cytokine mRNAs. TTP activity depends on its phosphorylation state: the unphosphorylated TTP degrades pro-inflammatory cytokine mRNAs; on the contrary, the phosphorylated TTP fails to destabilize mRNAs furthering their expression. The phospho-TTP forms a complex with the chaperone protein 14-3-3. This binding could be one of the factors that promote intestinal inflammation as a cause of disease progression.

Pubmed ID: 31660029

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