Abstract
Autoimmune thyroid diseases (AITDs) are often accompanied by vitiligo, and the sera of patients with vitiligo often demonstrate increased frequencies of thyroid autoantibodies. In this study, we investigated the expression of melanocyte-associated antigens in tissues from patients with Hashimoto’s thyroiditis (HT) without vitiligo using immunohistochemistry. Tissues of HT without vitiligo, as well as normal thyroid tissues, were both negative for the expression of NKI/beteb, gp100, tyrosinase-related protein 1 (TRP1), HMB-45 and S100, whereas they were positive for the expression of tyrosinase-related protein 2 (TRP2), lysosome-associated membrane protein 1 (LAMP1) and CD69. Tyrosinase (TYR) was only detected in tissues of HT, and levels of LAMP1 and CD69 were higher in tissues of HT than in normal thyroid tissues (p < 0.005). These results suggest the possibility of antigen crossover and oxidative stress between vitiligo and HT that might represent an immunological basis for secondary HT associated with vitiligo.
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Acknowledgments
This study was supported by the National Natural Science Foundation of China (Grant No. 81171517).
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Gong, Q., Li, X., Gong, Q. et al. Hashimoto’s thyroiditis could be secondary to vitiligo: the possibility of antigen crossover and oxidative stress between the two diseases. Arch Dermatol Res 308, 277–281 (2016). https://doi.org/10.1007/s00403-016-1641-z
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DOI: https://doi.org/10.1007/s00403-016-1641-z