Decreased T‐cell response against latent cytomegalovirus infection does not correlate with anti‐IFN autoantibodies in patients with APECED.

Autor: Hetemäki, Iivo, Heikkilä, Nelli, Peterson, Pärt, Kekäläinen, Eliisa, Willcox, Nick, Anette S. B., Wolff, Jarva, Hanna, Arstila, T Petteri
Předmět:
Zdroj: APMIS; Nov2024, Vol. 132 Issue 11, p881-887, 7p
Abstrakt: Autoimmune polyendocrinopathy‐candidiasis‐ectodermal dystrophy (APECED) is an inborn error of immunity affecting both multiple endocrine organs and susceptibility to candidiasis, each with an autoimmune basis. Recently, high titer neutralizing anti‐type I interferon (IFN) autoantibodies have been linked with increased severity of SARS‐CoV‐2 and varicella zoster virus infections in APECED patients. Examining immunity against cytomegalovirus (CMV), we found a higher prevalence of anti‐CMV IgG antibodies in patients with APECED (N = 19) than in 44 healthy controls (90% vs 64%, p = 0.04); the similar difference in their IgG levels did not achieve significance (95 ± 74 vs 64 ± 35 IU/mL, ns.). In contrast, the frequency of CMV‐specific T cells was lower (804 ± 718/million vs 1591 ± 972/million PBMC p = 0.03). We saw no correlations between levels of anti‐CMV IgG and anti‐IFN antibodies in APECED patients or in a separate cohort of patients with thymoma (n = 70), over 60% of whom also had anti‐IFN antibodies. Our results suggest a dysregulated response to CMV in APECED patients and highlight immunodeficiency to viral infections as part of the disease spectrum. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index