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Specialized pro-resolving receptors are expressed in salivary glands with Sjögren's syndrome
- Source :
- Ann Diagn Pathol
- Publication Year :
- 2021
-
Abstract
- Our previous studies demonstrated that resolvin D1 (RvD1) and its aspirin-trigged (AT) form AT-RvD1, are effective in decreasing inflammation while restoring saliva flow rates in a Sjogren's syndrome (SS) like mouse model before and after disease onset. Resolvins are specialized pro-resolving mediators (SPM) that actively regulate inflammation. However, we only have extensive data within the salivary glands for RvD1 and AT-RvD1, both of which bind to the receptor ALX/FPR2. As such, the presence of other SPM receptors is unknown within salivary glands. Therefore, the goal of this study was to determine the expression of SPM receptors in non-SS and SS patients. For this purpose, six human minor salivary glands from female subjects were analyzed by H&E using the Chisholm and Mason classification to determine the degree of lymphocytic infiltration. Next, confocal immunofluorescence analysis was performed to determine the presence and distribution of different SPM receptors in mucous acini and striated ducts. We observed diffuse presence of lymphocytic infiltration and clinical data were consistent with SS diagnosis in three patients. Moreover, confocal immunofluorescence analysis indicated the presence of the receptors ALX/FPR2, BLT1 and CMKLR1 in the mucous acini and striated ducts of both non-SS and SS patients. GPR32 was absent in SS and non-SS minor salivary glands. In summary, our results showed that various SPM receptors are expressed in non-SS and SS minor salivary glands, all of which may pose as potential targets for promoting pro-epithelial and anti-inflammatory/pro-resolution signaling on SS patients.
- Subjects :
- Adult
Pathology
medicine.medical_specialty
Saliva
Receptors, Leukotriene B4
Inflammation
Biology
CMKLR1
Salivary Glands, Minor
Article
Pathology and Forensic Medicine
Receptors, G-Protein-Coupled
Young Adult
medicine
Humans
Receptors, Lipoxin
Receptor
Aged, 80 and over
Histology
General Medicine
Lipid signaling
Middle Aged
Receptors, Formyl Peptide
GPR32
Sjogren's Syndrome
Female
Receptors, Chemokine
medicine.symptom
Sjogren s
Subjects
Details
- ISSN :
- 15328198
- Volume :
- 56
- Database :
- OpenAIRE
- Journal :
- Annals of diagnostic pathology
- Accession number :
- edsair.doi.dedup.....5b203af9ea41cc112f6406878a3d4675