4.5 Article

The combination of clinical parameters and immunophenotyping of intraepithelial lymphocytes allows to assess disease severity in refractory celiac disease

期刊

DIGESTIVE AND LIVER DISEASE
卷 54, 期 12, 页码 1649-1656

出版社

ELSEVIER SCIENCE INC
DOI: 10.1016/j.dld.2022.06.024

关键词

Malabsorption; Refractory celiac disease; Enteropathy-associated T-cell lymphoma; Aberrant; IELs

资金

  1. Deutsche Zoliakie Gesellschaft
  2. Deutsche Forschungsgemeinschaft [DFGGRK2318, TRR241]

向作者/读者索取更多资源

This study investigated the associations between clinical characteristics of refractory celiac disease patients and aberrant intraepithelial lymphocytes, and evaluated the accuracy of immunophenotyping for identifying high-risk refractory celiac disease. The results showed that flow cytometry analysis is a good predictor for high-risk refractory celiac disease, and adding the evaluation of malabsorption to the diagnostic assessment improves accuracy.
Background: Flow cytometry of intestinal lymphocytes is discussed to be a stronger predictor of enteropathy-associated T-cell lymphoma development in refractory celiac disease than T-cell clonality analysis.Aims: To investigate possible associations between clinical characteristics of refractory celiac disease patients and aberrant intraepithelial lymphocytes and to evaluate the accuracy of immunophenotyping for the identification of high-risk refractory celiac disease.Methods: Flow cytometry of isolated lymphocytes from duodenal biopsies of controls and celiac disease patients was performed and results were compared to clinical data.Results: Flow cytometry analysis was performed on 42 controls, 37 non-complicated celiac disease and 30 refractory celiac disease cases with or without T-cell receptor clonality. Elevated aberrant intraepithelial lymphocyte counts were significantly associated with severe malabsorption. A 15% cut-off (aberrant lymphocytes among all lymphocytes) had the best discriminatory ability to identify high-risk patients. However, this technique failed to identify some high-risk cases (sensitivity 63%, specificity 100%). The severity of malabsorption was added to the criteria for high-risk refractory celiac disease, improving the correct patients' allocation (sensitivity 100%, specificity 96%).Conclusion: Immunophenotyping of aberrant intraepithelial lymphocytes is a good predictor for high-risk refractory celiac disease. Furthermore, adding the evaluation of malabsorption to the diagnostic assessment of refractory celiac disease optimizes accuracy. (c) 2022 Published by Elsevier Ltd on behalf of Editrice Gastroenterologica Italiana S.r.l.

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