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Interleukin 10 and interleukin 10 receptor in paediatric inflammatory bowel disease: from bench to bedside lesson
Paulina Krawiec1, Agnieszka Pawłowska-Kamieniak2, Elżbieta Pac-Kożuchowska2
1Department of Paediatrics and Gastroenterology, Medical University of Lublin, Racławickie 1, 20-059, Lublin, Poland. paulinakrawiec@umlub.pl.
Insights
Genetic defects in Interleukin-10 (IL-10) signaling cause severe early-onset inflammatory bowel disease (IBD) in children. Early recognition and allogeneic hematopoietic stem cell transplantation offer curative treatment for these monogenic IBD cases.
Area of Science:
- Pediatric Gastroenterology
- Immunology
- Genetics
Background:
- Inflammatory bowel disease (IBD) presents differently in children compared to adults, leading to the distinct field of pediatric IBD.
- In young children (under 6 years), IBD is often caused by single gene mutations (monogenic IBD), while older children typically have polygenic IBD.
- Over 60 monogenic defects impacting immune mechanisms have been identified in IBD pathogenesis.
Purpose of the Study:
- To highlight the role of Interleukin-10 (IL-10) signaling defects in early-onset pediatric IBD.
- To emphasize the clinical presentation and curative treatment options for IL-10 pathway defects.
Main Methods:
- Review of known monogenic defects in IBD pathogenesis.
- Focus on the function of IL-10 as a key anti-inflammatory cytokine.
- Description of clinical manifestations in patients with IL-10 pathway defects.
Main Results:
- Defects in the IL-10 pathway lead to severe, life-threatening colitis with perianal lesions presenting in early infancy.
- IL-10 modulates both innate and adaptive immunity, affecting pro-inflammatory molecule expression and immune cell function.
- Allogeneic hematopoietic stem cell transplantation is a curative therapy for children with IL-10 signaling defects.
Conclusions:
- Clinical awareness of IL-10 signaling defects is crucial for early diagnosis.
- Prompt management, including consideration of stem cell transplantation, can significantly improve outcomes for affected children.
Background:
The differences between adults and children in inflammatory bowel disease (IBD) phenotype, severity, complications, co-morbidities, and response to the therapy resulted in the extraction of paediatric IBD. It has been revealed that the substantial role in the development of IBD in children under 6 years of age plays a single genetic mutation (monogenic IBD). On the other hand, in older children and adolescents IBD is usually associated with number of interactions between susceptibility loci (polygenic IBD).
Main Body:
Until now there have been described about 60 monogenic defects which affect the variety of immune mechanisms in IBD pathogenesis including epithelial barrier, function of neutrophil granulocytes and phagocytes, T- and B-cell selection and activation, immune inhibitory mechanisms, or apoptosis. Il-10 is an anti-inflammatory cytokine which modulates innate and adaptive immunity affecting expression of pro-inflammatory molecules and function of the variety of immune cells. Patients with identified defects in Il-10 pathway manifest with life-threating colitis with perianal lesions which occurs within first months of life. Allogenic hematopoietic stem cell transplantation is curative therapy in children with Il-10 signalling defects.
Conclusion:
Clinical awareness of Il-10 signalling defects enables early recognition and prompt management of the disease.
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