June 23, 2026 · Gastroenterology · DOI: 10.1053/j.gastro.2026.05.022

BIRC3 (Encoding Cellular Inhibitor of Apoptosis Protein 2) Variants Result in Dysregulated Receptor-Interacting Protein Kinase 1 Signaling Leading to Increased Epithelial Cell Death and Are Associated With Monogenic Crohn's Disease

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The authors investigate the role of BIRC3 gene variants in monogenic Crohn's disease (CD) and their impact on receptor-interacting protein kinase 1 (RIPK1) signaling. They identify rare BIRC3 variants in patients with CD, demonstrating that these variants lead to dysregulated RIPK1 signaling and increased epithelial cell death, ultimately contributing to intestinal inflammation. The study highlights RIPK1 as a potential therapeutic target for treating BIRC3 deficiency-related CD.

Qi Li, Ryusuke Nambu, Hu Yaqiang, Xiang Shen, Carmen Argmann, Rei Guan, Erin Janssen, Tom Le Voyer, Neil Warner, Daniel D Yu, Jing Guo, Kelvin Long, Jodie Ouahed, Michael Field, Lauren Collen, Jonas Bibus, David Illig, Meino Rohlfs, Ziqi Yu, Shaohong Yang, Wenjuan Li, Craig D Platt, Phillip H Comella, Daniel Jordan, Mayte Suárez-Fariñas, Mohammed F Alosaimi, Lauren A Peters, Jeremie Rosain, Claire Fieschi, Anne Puel, Elena W Y Hsieh, Takeo Naito, Zhiyang Zeng, Marta Velasco Rodríguez-Belvís, Laura Palomino, Peter Küster, Dalin Li, Christoph Klein, Scott B Snapper, Jean-Laurent Casanova, Raif Geha, Edward Hoffenberg, Dermot P B McGovern, Eric Schadt, Daniel Kotlarz, Dali Li, Aleixo M Muise

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