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Bittersweet: how hyperglycemia exacerbates vitiligo progression through the succinate/SUCNR1 axis
Kaitlyn G O'Donnell1, I Caroline Le Poole2
1Indiana University School of Medicine, Indianapolis, Indiana, USA.
The Journal of Clinical Investigation
|June 15, 2026
Summary
Hyperglycemia worsens vitiligo by activating the succinate/SUCNR1 pathway. This discovery offers a new therapeutic target and suggests lifestyle changes may help manage vitiligo and other autoimmune conditions.
Area of Science:
- Immunodermatology
- Metabolic pathways in autoimmune disease
Background:
- Vitiligo is a T cell-mediated autoimmune disorder causing melanocyte destruction.
- Current understanding of vitiligo triggers and treatments remains limited.
Purpose of the Study:
- To investigate the role of hyperglycemia in vitiligo progression.
- To identify molecular mechanisms linking metabolic changes to vitiligo pathogenesis.
Main Methods:
- The study by Kang et al. explored the succinate/SUCNR1 signaling axis.
- Investigated the impact of hyperglycemia on vitiligo development and progression.
Main Results:
- Hyperglycemia was found to exacerbate vitiligo progression.
- The succinate/SUCNR1 axis was identified as a key mediator of this exacerbation.
- Succinate emerged as a potential biomarker for vitiligo activity.
Conclusions:
- The succinate/SUCNR1 pathway presents a novel therapeutic target for vitiligo.
- Modulating glucose metabolism and succinate levels may offer new treatment strategies.
- Lifestyle modifications could potentially influence the development of vitiligo and related autoimmune diseases.
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