scholarly journals Transcriptomic Profile of Genes Encoding Proteins Involved in Pathogenesis of Sjögren’s Syndrome Related Xerostomia—Molecular and Clinical Trial

2020 ◽  
Vol 9 (10) ◽  
pp. 3299
Author(s):  
Katarzyna Błochowiak ◽  
Piotr Celichowski ◽  
Bartosz Kempisty ◽  
Katarzyna Iwanik ◽  
Michał Nowicki
Keyword(s):  
Gene Expression ◽  
Sjögren’S Syndrome ◽  
Sjögren's Syndrome ◽  
Study Groups ◽  
Sjogren’S Syndrome ◽  
Sjogren's Syndrome ◽  
P Value ◽  
Study Group ◽  
Gene Expressions ◽  
Sjögren‘S Syndrome

Sjögren’s syndrome (SS) is characterized by xerostomia. We aimed to investigate and compare gene expressions in the labial salivary glands of SS patients with xerostomia SS (sicca) and without xerostomia SS (non-sicca) and of healthy subjects (HS) by means of microarray analysis, and to find genes involved in xerostomia. The study group comprised 11 SS patients (3 SS (sicca) and 8 SS (non-sicca)) and 9 HS. The relative gene expression changes were validated with RT-qPCR in the larger study group. Among the differently expressed genes belonging to the “secretion” ontology group with a fold change >2 and with a p value < 0.05, the Transmembrane P24 Trafficking Protein 10 (TMED10), Protein Disulfide Isomerase Family A Member 4 (PDIA4), Calnexin (CANX), Amyloid Beta Precursor Protein (APP), and Transmembrane BAX Inhibitor Motif Containing 6 (TMBIM6) gene expressions in both SS (sicca) and SS (non-sicca) groups were lower than in HS. Significant correlations were observed between TMED10, PDIA4, and CANX gene expression in SS (sicca) patients compared to the controls. There were no differences between the SS (sicca) and SS (non-sicca) study groups in the expression of the aforementioned genes. Results indicate their role in the endoplasmic reticulum system, their overlapping function and the loss of the APP neuroprotective function in xerostomia. It has a multifactorial origin and can be triggered by disturbances to the various signaling pathways in saliva secretion.

Helicobacter Pylori Infection in Sjögren’s Syndrome: Co-incidence or Causality?

2019 ◽  
Vol 15 (3) ◽  
pp. 238-241
Author(s):  
Massoud Saghafi ◽  
Nafiseh Abdolahi ◽  
Reza Orang ◽  
Mohammad Reza Hatef ◽  
Mohammad Hadi Molseghi
Keyword(s):  
Helicobacter Pylori ◽  
Serum Level ◽  
Sjögren’S Syndrome ◽  
Sjögren's Syndrome ◽  
Sjogren’S Syndrome ◽  
Sjogren's Syndrome ◽  
Control Group ◽  
P Value ◽  
H Pylori ◽  
Sjögren‘S Syndrome

Background and Aim: Lymphoid cell infiltration and destruction of exocrine glands, specifically lacrimal and salivary glands are characteristics of Sjogren’s syndrome (SS). An etiological role has been proposed for Helicobacter pylori (H. pylori), interacting in the clinical course and complications of SS (including gastric cancer and lymphoma). The aim of this study was to identify the probable correlation between H. pylori infection and Sjogren’s syndrome (SS). Methods: In this case-control study, ELISA method was used to determine serum level of IgA and IgM anti H. pylori antibody in 43 subjects with SS according to the international criteria and 95 healthy subjects as control. SPSS-17 was used to analyze data with t-test. P value <.05 were considered significant. Results: Serum level of IgM (34.9% vs. 10.5%, p-value= 0.001) and IgA (67.4% vs. 46.3% p value= 0.021) anti H. pylori antibody were significantly higher in SS patients compared to the control group. There was a positive correlation between age and H. pylori infection (r=0.2, Pvalue= 0.05). Conclusion: Patients with SS had a higher prevalence of H. pylori infection compared to the normal population. Eradication of H. pylori is recommended particularly in older patients with SS.

scholarly journals An integrative multi-omics approach in Sjögren’s Syndrome identifies novel genetic drivers with regulatory function and disease-specificity

2020 ◽  
Author(s):  
María Teruel ◽  
Guillermo Barturen ◽  
Manuel Martínez-Bueno ◽  
Miguel Barroso ◽  
Olivia Castelli ◽  
...  
Keyword(s):  
Gene Expression ◽  
Dna Methylation ◽  
Sjögren’S Syndrome ◽  
Genetic Variants ◽  
Sjögren's Syndrome ◽  
Expression Patterns ◽  
Sjogren’S Syndrome ◽  
Sjogren's Syndrome ◽  
Regulatory Function ◽  
Sjögren‘S Syndrome

ABSTRACTPrimary Sjögren’s syndrome (SS) is a systemic autoimmune disease characterized by lymphocytic infiltration and damage of exocrine salivary and lacrimal glands. The etiology of SS is complex with environmental triggers and genetic factors involved. By conducting an integrated multi-omics study we identified vast coordinated hypomethylation and overexpression effects, that also exhibit increased variability, in many already known IFN-regulated genes. We report a novel epigenetic signature characterized by increased DNA methylation levels in a large number of novel genes enriched in pathways such as collagen metabolism and extracellular matrix organization. We identified new genetic variants associated with SS that mediate their risk by altering DNA methylation or gene expression patterns, as well as disease-interacting genetic variants that exhibit regulatory function only in the SS population. Our study sheds new light on the interaction between genetics, DNA methylation, gene expression and SS, and contributes to elucidate the genetic architecture of gene regulation in an autoimmune population.

scholarly journals Sjögren’s Syndrome: Concerted Triggering of Sicca Conditions

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Zygmunt Mackiewicz ◽  
Justyna Mażul ◽  
Ieva Narkevičiūtė ◽  
Irena Dumalakienė ◽  
Irena Butrimienė ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Salivary Glands ◽  
Sjögren’S Syndrome ◽  
Sjögren's Syndrome ◽  
Study Groups ◽  
Sjogren’S Syndrome ◽  
Sjogren's Syndrome ◽  
Mumps Virus ◽  
Sicca Syndrome ◽  
Sjögren‘S Syndrome

Aim. The aim of this study was to evaluate the expression of persistence of mumps virus and some cells that interact with viral infection in the focus of the autoimmune epithelitis and peripheral blood of Sjögren’s syndrome patients in comparison to patients with rheumatoid arthritis (RA) and nonautoimmune sicca syndrome (nSS). Materials and Methods. 126 patients (119 women and 7 men) were grouped into four groups: (1) patients with primary Sjögren’s syndrome (pSS), (2) patients with secondary Sjögren’s syndrome due to rheumatoid arthritis (sSS), (3) patients with rheumatoid arthritis (RA), and (4) patients with nonautoimmune sicca syndrome (nSS). Immunohistochemical analysis of immune response to the suggested silent persistence of mumps virus in the minor labial salivary gland biopsies and flow cytometric analysis of blood cells was done. Results. Immunohistochemical signs of mumps virus persistence were found in the minor salivary glands of all study groups. Also, a significantly different immune response to virus infection (protein IFI16, interferons gamma and beta, dendritic cells, and receptor for natural killers) was revealed in the minor salivary glands of the study groups. Cytometric analysis of the blood cells revealed a dropping amount of circulating natural killers and dendritic cells in patients with SS. Significant correlations between immunohistochemical staining and serological findings were revealed. Conclusions. Abundant immunohistochemical signs of mumps virus protein in the salivary glands and depletion of circulating immune cells make a background for thought of presumable mumps or/and other virus participation in epithelial damage causing sicca syndrome in predisposed patients.

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