Immunopathogenesis of Sjogren's syndrome: current state of DAMPs

Published on Jul 1, 2022in Seminars in Arthritis and Rheumatism
· DOI :10.1016/j.semarthrit.2022.152062
Bingxia Ming7
Estimated H-index: 7
(Tongji Medical College),
Yaowu Zhu0 ()+ 1 AuthorsLingli Dong0 ()
Sjögren's syndrome (SS) is a systemic autoimmune disorder with an estimated global prevalence of 0.3 to 1/1000 persons. This disease has a female predilection and mainly affects salivary and lacrimal glands. The distinctive pathological hallmark of SS is focal lymphocyte infiltration in affected glands, accompanied by the production of autoantibodies and inflammatory cytokines leading to epithelial damage and disease progression. Danger-associated molecular patterns (DAMPs) as alarmins have been demonstrated to promote lymphocyte recruitment in several inflammatory and autoimmune diseases. Here we summarize that the levels of DAMPs were increased in the periphery and affected tissues in SS as the stimulators, DAMPs sensed by pattern recognition receptors (PRRs, the same sensors for PAMPs) initiated the inflammatory and autoimmune response constituting a vicious autoimmunity loop leading to disease exacerbation. Thus, DAMPs are involved in the immunopathogenesis of SS and inhibition of these DAMPs may serve as a novel therapeutic strategy for SS.
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