Distinct phenotype of CD4+ T cells driving celiac disease identified in multiple autoimmune conditions
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Published on: May 29, 2020
Asbjørn Christophersen1,2,3,4, Eivind G Lund1,2,3, Omri Snir1,2,3
1KG Jebsen Coeliac Disease Research Centre, University of Oslo, Oslo, Norway.
Insights
Researchers identified a rare CD4+ T cell phenotype specific to gluten in celiac disease patients. This T cell signature is also present in systemic sclerosis and lupus, offering a new way to study autoimmune diseases.
Area of Science:
- Immunology
- Autoimmunity
- Molecular Biology
Background:
- Celiac disease is an autoimmune disorder triggered by gluten.
- Understanding the specific immune cells involved is crucial for developing targeted therapies.
Purpose of the Study:
- To characterize gluten-specific CD4+ T cells in celiac disease.
- To investigate the presence of these cells in other autoimmune conditions.
Main Methods:
- Utilized HLA-DQ-gluten tetramers for T cell identification.
- Employed mass cytometry and RNA sequencing for deep cellular analysis.
Main Results:
- Discovered a rare CD4+ T cell phenotype specific to gluten in celiac patients.
- Observed elevated levels of this phenotype in systemic sclerosis and systemic lupus erythematosus patients.
Conclusions:
- This rare T cell phenotype serves as a potential biomarker for gluten reactivity in celiac disease.
- The findings suggest a commonality in CD4+ T cell responses across different autoimmune diseases, offering new avenues for research.
Abstract:
Combining HLA-DQ-gluten tetramers with mass cytometry and RNA sequencing analysis, we find that gluten-specific CD4+ T cells in the blood and intestines of patients with celiac disease display a surprisingly rare phenotype. Cells with this phenotype are also elevated in patients with systemic sclerosis and systemic lupus erythematosus, suggesting a way to characterize CD4+ T cells specific for disease-driving antigens in multiple autoimmune conditions.
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