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Abstract
Autoimmune Addison’s disease (AD) is a rare but life-threatening disorder caused by immune-mediated destruction of the adrenal cortex, and progress in therapy has been limited by insufficient mechanistic insight. Here, we establish a model of Experimental Autoimmune Adrenalitis (EAA) that recapitulates key features of AD and reveals sex-dependent differences in disease manifestation within the model. Immunization with peptides derived from the adrenal self-antigen CYP11A1 induces corticosterone insufficiency. We show that autoimmune adrenalitis is driven by IFNG produced by self-reactive CD4+ T cells, promoting granulomatous inflammation in the adrenal cortex. Together, these findings identify IFNG as a central effector of autoimmune adrenalitis and suggest that targeting the IFNG pathway may represent a potential therapeutic strategy for AD.
Authors
Arina Andreyeva, Juraj Michalik, Veronika Niederlova, Veronika Cimermanova, Ales Drobek, Radislav Sedlacek, Jan Prochazka, Juraj Labaj, Olha Fedosieieva, Waldemar Kanczkowski, Peter Draber, André Sulen, Ondrej Stepanek, Aleš Neuwirth
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