Aspirin Triggered Resolvin D1 reduces inflammation and restores saliva secretion in a Sjögren's syndrome mouse model

Spencer Dean, Ching Shuen Wang, Kihoon Nam, Christina L. Maruyama, Bryan G. Trump, Olga J. Baker

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Objectives. SS is characterized by chronic inflammation of the salivary glands leading to loss of secretory function, thereby suggesting specialized pro-resolving mediators targeting inflammation to be a viable option for treating SS. Previous studies demonstrated that aspirin-triggered resolvin D1 (AT-RvD1) prevents chronic inflammation and enhances saliva secretion in a SS-like mouse model when applied before disease onset. However, this therapy cannot be used in SS patients given that diagnosis occurs post-disease onset and no reliable screening methods exist. Therefore, we examined whether treatment with AT-RvD1 reduces SS-like features in a mouse model post-disease onset. Methods. Tail vein injections were performed in a SS-like mouse model both with and without AT-RvD1 post-disease onset for 8 weeks, with salivary gland function and inflammatory status subsequently determined. Results. Treatment of a SS-like mouse model with AT-RvD1 post-disease onset restores saliva secretion in both females and males. Moreover, although AT-RvD1 treatment does not reduce the overall submandibular gland lymphocytic infiltration, it does reduce the number of T helper 17 cells within the infiltrates in both sexes. Finally, AT-RvD1 reduces SS-associated pro-inflammatory cytokine gene and protein expression levels in submandibular glands from female but not male mice. Conclusion. AT-RvD1 treatment administered post-disease onset reduces T helper 17 cells and successfully restores salivary gland function in a SS mouse model with variable effects noted by sex, thus warranting further examination of both the causes for the sex differences and the mechanisms responsible for the observed treatment effect.

Original languageEnglish
Pages (from-to)1285-1292
Number of pages8
JournalRheumatology (United Kingdom)
Volume58
Issue number7
DOIs
Publication statusPublished - Jul 1 2019

Keywords

  • Cytokines
  • Formyl peptide receptor 2
  • Interleukin-17
  • Lipid mediators
  • Lipoxins
  • Lymphocyte
  • Resolvins
  • Salivary glands

ASJC Scopus subject areas

  • Rheumatology
  • Pharmacology (medical)

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