期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 22, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/ijms22063090
关键词
innate immunity; pattern-recognition receptor; Toll-like receptor; type I interferon; salivary gland epithelial cell
资金
- JSPS KAKENHI [JP20K17445]
Sjogren's syndrome is a systemic autoimmune disease characterized by chronic inflammation, involving adaptive immune response and type I interferon signature. Innate immune responses play a role in the pathogenesis of Sjogren's syndrome.
Sjogren's syndrome (SS) is a systemic autoimmune disease characterized by chronic inflammation of the salivary and lacrimal glands and extra-glandular lesions. Adaptive immune response including T- and B-cell activation contributes to the development of SS. However, its pathogenesis has not yet been elucidated. In addition, several patients with SS present with the type I interferon (IFN) signature, which is the upregulation of the IFN-stimulated genes induced by type I IFN. Thus, innate immune responses including type I IFN activity are associated with SS pathogenesis. Recent studies have revealed the presence of activation pattern recognition receptors (PRRs) including Toll-like receptors, RNA sensor retinoic acid-inducible gene I and melanoma differentiation-associated gene 5, and inflammasomes in infiltrating and epithelial cells of the salivary glands among patients with SS. In addition, the activation of PRRs via the downstream pathway such as the type I IFN signature and nuclear factor kappa B can directly cause organ inflammation, and it is correlated with the activation of adaptive immune responses. Therefore, this study assessed the role of the innate immune signal pathway in the development of inflammation and immune abnormalities in SS.
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