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Patients with both Langerhans cell histiocytosis and Crohn’s disease highlight a common role of interleukin‐23
Author(s) -
Kvedaraite Egle,
Lourda Magda,
Han HongYa,
Tesi Bianca,
Mitchell Jenée,
Ideström Maja,
Mouratidou Natalia,
Rassidakis George,
Bahr Greenwood Tatiana,
CohenAubart Fleur,
Jädersten Martin,
Åkefeldt Selma Olsson,
Svensson Mattias,
Kannourakis George,
Bryceson Yenan T.,
Haroche Julien,
Henter JanInge
Publication year - 2021
Publication title -
acta paediatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/apa.15590
Subject(s) - langerhans cell histiocytosis , medicine , histiocytosis , disease , crohn's disease , immunology , interleukin , pathology , cytokine
Aim To present the first case series of patients with Langerhans cell histiocytosis (LCH) also affected by Crohn's disease (CD), both of which are granulomatous diseases, and in LCH investigate the role of interleukin (IL)‐23, which is a well‐described disease mediator in CD. Methods A case series of three patients with LCH and CD were described; a cohort of LCH patients (n = 55) as well as controls (n = 55) were analysed for circulating IL‐23 levels; and the relation between the percentage of LCH cells in lesions and circulating IL‐23 levels was analysed in seven LCH patients. Results Differential diagnostic challenges for these two granulomatous diseases were highlighted in the case series, and it took up to 3 years to diagnose CD. Elevated IL‐23 levels were found in LCH patients. The amount of lesional LCH cells correlated with the levels of circulating IL‐23. Conclusion Both CD and LCH should be considered in patients with inflammatory gastrointestinal involvement. The IL‐23 pathway is a common immunological trait between these two granulomatous diseases.