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2018 ; 88
(ä): 11-20
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Autophagy dysfunction in autoinflammatory diseases
#MMPMID29108670
Hua Y
; Shen M
; McDonald C
; Yao Q
J Autoimmun
2018[Mar]; 88
(ä): 11-20
PMID29108670
show ga
Autoinflammatory diseases (AUIDs) are a genetically heterogeneous group of
rheumatic diseases characterized by episodic inflammation linked with
dysregulated innate immune responses. In this review, we summarize the molecular
mechanisms altered by disease-associated variants in several AUIDs, including
NOD2-associated diseases, TNF receptor-associated periodic syndrome (TRAPS),
familial Mediterranean fever (FMF) and hyperimmunoglobulinemia D and periodic
fever syndrome (HIDS), and highlight the roles dysregulated autophagy plays in
disease pathogenesis. Autophagy is a conserved eukaryotic pathway for the
elimination of cellular stressors, such as misfolded proteins, damaged
organelles, or intracellular microorganisms. It is now recognized that autophagy
also functions to control inflammation through regulatory interactions with
innate immune signaling pathways. AUID-associated genetic variants are known to
directly activate inflammatory signaling pathways. Recent evidence also indicates
that these variants may also cause impairment of autophagy, thus augmenting
inflammatory responses indirectly. Intriguingly, these variants can impair
autophagy by different mechanisms, further implicating the autophagic response
pathway in AUIDs. These discoveries provide evidence that autophagy could be
investigated as a new therapeutic target for AUIDs.