Role of the Innate Immunity Signaling Pathway in the Pathogenesis of Sjögren’s Syndrome
Sjögren’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...
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doaj-13456d318a7e409d8b883d5a164142cf2021-03-18T00:06:45ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-03-01223090309010.3390/ijms22063090Role of the Innate Immunity Signaling Pathway in the Pathogenesis of Sjögren’s SyndromeToshimasa Shimizu0Hideki Nakamura1Atsushi Kawakami2Clinical Research Center, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki City, Nagasaki 852-8501, JapanDepartment of Immunology and Rheumatology, Unit of Advanced Preventive Medical Sciences, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki City, Nagasaki 852-8501, JapanDepartment of Immunology and Rheumatology, Unit of Advanced Preventive Medical Sciences, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki City, Nagasaki 852-8501, JapanSjögren’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.https://www.mdpi.com/1422-0067/22/6/3090innate immunitypattern-recognition receptorToll-like receptortype I interferonsalivary gland epithelial cell |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Toshimasa Shimizu Hideki Nakamura Atsushi Kawakami |
spellingShingle |
Toshimasa Shimizu Hideki Nakamura Atsushi Kawakami Role of the Innate Immunity Signaling Pathway in the Pathogenesis of Sjögren’s Syndrome International Journal of Molecular Sciences innate immunity pattern-recognition receptor Toll-like receptor type I interferon salivary gland epithelial cell |
author_facet |
Toshimasa Shimizu Hideki Nakamura Atsushi Kawakami |
author_sort |
Toshimasa Shimizu |
title |
Role of the Innate Immunity Signaling Pathway in the Pathogenesis of Sjögren’s Syndrome |
title_short |
Role of the Innate Immunity Signaling Pathway in the Pathogenesis of Sjögren’s Syndrome |
title_full |
Role of the Innate Immunity Signaling Pathway in the Pathogenesis of Sjögren’s Syndrome |
title_fullStr |
Role of the Innate Immunity Signaling Pathway in the Pathogenesis of Sjögren’s Syndrome |
title_full_unstemmed |
Role of the Innate Immunity Signaling Pathway in the Pathogenesis of Sjögren’s Syndrome |
title_sort |
role of the innate immunity signaling pathway in the pathogenesis of sjögren’s syndrome |
publisher |
MDPI AG |
series |
International Journal of Molecular Sciences |
issn |
1661-6596 1422-0067 |
publishDate |
2021-03-01 |
description |
Sjögren’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. |
topic |
innate immunity pattern-recognition receptor Toll-like receptor type I interferon salivary gland epithelial cell |
url |
https://www.mdpi.com/1422-0067/22/6/3090 |
work_keys_str_mv |
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