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A High-Throughput Multiplexed Screening for Type 1 Diabetes, Celiac Diseases, and COVID-19
Published on: July 5, 2022
Case report: type 1 diabetes in monozygotic quadruplets.
Katerina Stechova1, Zbynek Halbhuber, Miluse Hubackova
1Department of Paediatrics, 2nd Medical Faculty of Charles University and University Hospital Motol, Prague, Czech Republic. katerina.stechova@lfmotol.cuni.cz
European Journal of Human Genetics : EJHG
|November 24, 2011
Summary
This study details a unique family of quadruplets where two developed Type 1 diabetes (T1D) and one pre-diabetes, all with autoantibodies. Viral infection and specific cytokines (IL-27, IL-9) appear to trigger T1D in genetically predisposed individuals.
Area of Science:
- Immunology
- Endocrinology
- Genetics
Background:
- Type 1 diabetes (T1D) results from autoimmune destruction of pancreatic beta cells, leading to insulin deficiency.
- Genetic predisposition plays a role in T1D development, but environmental triggers are also implicated.
- The 'fertile-field' hypothesis suggests genetic susceptibility is activated by environmental factors like viral infections.
Observation:
- A unique case of naturally conceived quadruplets, confirmed as monozygotic, presented with simultaneous T1D in two, pre-diabetes in one, and all testing positive for anti-islet antibodies (GAD65, IA-A2).
- All quadruplets and their father had a recent enteroviral infection (EV68-71 serotype).
- Reduced numbers of T regulatory cells and dendritic cells were observed across all family members.
Findings:
- Gene expression arrays revealed that viral infection, along with Interleukin-27 (IL-27) and Interleukin-9 (IL-9) cytokine signaling, contributed to T1D onset in the affected quadruplets.
- Non-diabetic family members showed a propensity to secrete high levels of Interferon-alpha (IFN-α) upon stimulation, supporting the role of immune dysregulation.
- The findings support the 'fertile-field' hypothesis, indicating that a genetic predisposition to anti-islet autoimmunity can be triggered by viral infections.
Implications:
- This family serves as a compelling model for studying the interplay between genetic susceptibility, viral triggers, and autoimmune diabetes.
- Understanding these molecular pathways could lead to novel therapeutic strategies for preventing or treating Type 1 diabetes.
- Further research into the role of specific cytokines and immune cells in T1D pathogenesis is warranted.
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