Journal
JOURNAL OF DIABETES INVESTIGATION
Volume 13, Issue 4, Pages 741-745Publisher
WILEY
DOI: 10.1111/jdi.13715
Keywords
Autoimmune response; Type 1 diabetes mellitus; Islet transplantation
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Funding
- NCGM Intramural Research Fund [24A002]
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A case of allogeneic islet transplantation in Japan was reported, with a focus on using an original assessment method to monitor cellular autoimmunity. The method successfully detected the activation of islet antigen-specific CD8(+) T-cell responses, indicating the potential for non-invasive detection of pancreatic beta-cell damage due to recurrent autoimmunity.
Here, we report a case of allogeneic islet transplantation in Japan. A 48-year-old man received intraportal islet transplantation (5,945 islet equivalent/kg), and stabilization of blood glucose levels and suppression of hypoglycemia were achieved. In the present case, we used our original assessment method to detect the responses of the recipient's T cells to islet autoantigens over time to monitor cellular autoimmunity. Other markers could not predict graft dysfunction in advance, but our method detected the activation of islet antigen-specific CD8(+) T-cell responses before the deterioration of pancreatic beta-cell function, indicating the possibility of the non-invasive detection of pancreatic beta-cell damage due to recurrent autoimmunity.
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