ScRNAseq data of primary Sjögren's syndrome
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE302883 | GEO | 2025/07/18
REPOSITORIES: GEO
Similar Datasets
Project description:While all salivary glands (SGs) can be involved in primary Sjögren’s syndrome (pSS), their respective role in pathogenesis remains unclear. To assess immunopathway activation in paired parotid and labial gland tissue from biopsy-positive and biopsy-negative pSS and non-SS sicca patients, paraffin-embedded, paired parotid and labial salivary gland tissue and peripheral blood mononuclear cells were obtained from 39 pSS and 20 non-SS sicca patients. The patients were subdivided based on fulfillment of ACR-EULAR criteria and histopathology and the samples were analyzed for differentially expressed genes (DEGs). The principal component analysis of SG gene expression could only separate biopsy-positive pSS from non-SS sicca patients. However, when comparing the transcriptome of biopsy-positive pSS and biopsy-negative non-SS sicca patients, 1235 and 624 DEGs (FDR<-1 or >1) were identified for parotid and labial glands, respectively. The number of DEGs between biopsy negative pSS and non-SS sicca patients was scarce. The overall, transcript expression levels correlated strongly between parotid and labial glands (R2=0.86, p‐value<0.0001). Gene signatures present in both glands of biopsy‐positive pSS patients included IFN‐α signaling, IL-12/IL-18 signaling, CD3/CD28 T-cell activation, CD40 signaling in B-cells, DN2 B-cells, and FcRL4+ B-cells. Signature scores varied considerably amongst pSS patients. In conclusion, the transcriptomes of paired major and minor SGs in pSS were overall comparable, although significant inter-individual heterogeneity in immunopathway activation existed. The SG transcriptome of biopsy-negative pSS was indistinguishable from non-SS sicca patients. The different patterns of SG immunopathway activation in pSS argue for personalized treatment approaches.
2021-05-05 | GSE173808 | GEO
Project description:While all salivary glands (SGs) can be involved in primary Sjögren’s syndrome (pSS), their respective role in pathogenesis remains unclear. To assess immunopathway activation in paired parotid and labial gland tissue from biopsy-positive and biopsy-negative pSS and non-SS sicca patients, paraffin-embedded, paired parotid and labial salivary gland tissue and peripheral blood mononuclear cells were obtained from 39 pSS and 20 non-SS sicca patients. The patients were subdivided based on fulfillment of ACR-EULAR criteria and histopathology and the samples were analyzed for differentially expressed genes (DEGs). The principal component analysis of SG gene expression could only separate biopsy-positive pSS from non-SS sicca patients. However, when comparing the transcriptome of biopsy-positive pSS and biopsy-negative non-SS sicca patients, 1235 and 624 DEGs (FDR<-1 or >1) were identified for parotid and labial glands, respectively. The number of DEGs between biopsy negative pSS and non-SS sicca patients was scarce. The overall, transcript expression levels correlated strongly between parotid and labial glands (R2=0.86, p‐value<0.0001). Gene signatures present in both glands of biopsy‐positive pSS patients included IFN‐α signaling, IL-12/IL-18 signaling, CD3/CD28 T-cell activation, CD40 signaling in B-cells, DN2 B-cells, and FcRL4+ B-cells. Signature scores varied considerably amongst pSS patients. In conclusion, the transcriptomes of paired major and minor SGs in pSS were overall comparable, although significant inter-individual heterogeneity in immunopathway activation existed. The SG transcriptome of biopsy-negative pSS was indistinguishable from non-SS sicca patients. The different patterns of SG immunopathway activation in pSS argue for personalized treatment approaches.
2022-07-16 | GSE208260 | GEO
Project description:RNAseq of CD4 cells from 83 individuals with musculoskeletal complains (age 51y, range 19-86. male 22%) were collected at the Rheumatology Clinic during 2022-2023 . Cells were activated with anti-CD3 for 48 hours.
2025-01-02 | GSE282517 | GEO
Project description:Primary Sjögren’s syndrome (pSS) is a systemic autoimmune disease characterized by reduced activity of the exocrine glands (principally the salivary and lacrimal glands) due to chronic lymphocytic infiltration. pSS has been closely associated with an enhanced risk of mucosa-associated lymphoid tissue (MALT) lymphoma. However, the dynamic epigenetic changes in gland cells accompanied with this pathogenesis are not fully understood. In present study, the labial gland (LG) and parotid gland (PG) tissues from two pSS patients with lymphoma were harvested including LG with negative antinuclear antibodies (ANA) and LG with positive ANA at the first diagnosis of pSS, as well as PG with and without lymphoma tissues at the second diagnosis of MALT. RNA-seq of these tissues were studied. This data is benefit to advanced understanding the dynamic development of MALT from pSS, emphasizing the importance of epigenetic alterations in regulating transcription during the pathologic process.
2021-04-17 | E-MTAB-10339 | biostudies-arrayexpress
Project description:Objective: The aim of this study was to characterize and compare the proteome in whole saliva, plasma, and salivary gland tissue in patients with primary Sjögren’s syndrome (pSS) and patients having symptoms of pSS, but not fulfilling the classification criteria, and to search for diagnostic biomarker candidates for pSS. Methods: Liquid chromatography tandem mass spectrometry was conducted on whole saliva, plasma, and labial salivary gland tissue samples from 24 patients with pSS and 16 non-Sjögren control subjects (non-pSS). Gene Ontology (GO)-terms and Kyoto Encyclopedia of Genes and Genomes (KEGG)-pathways were applied for functional annotation. Results: 1,013 proteins were identified in whole saliva, 219 in plasma, and 3,166 in salivary gland tissue. In saliva, 40 proteins differed significantly between the two groups. In pSS, proteins involved in immunoinflammatory processes were upregulated, whereas proteins related to salivary secretion were downregulated. The combination of neutrophil elastase, calreticulin, and tripartite motif-containing protein 29 yielded a receiver-operating characteristic (ROC) value of 0.97 (CI 0.93-1.00). Protein expression in plasma and salivary gland tissue did not differ between the patient groups. Conclusion: The salivary proteome of patients with pSS differed from that of non-pSS patients, indicating that saliva proteomics represents a promising non-invasive diagnostic tool for pSS.
2020-07-09 | PXD016231 | Pride
Project description:Primary Sjögren’s syndrome (pSS) is a systemic autoimmune disease characterized by reduced activity of the exocrine glands (principally the salivary and lacrimal glands) due to chronic lymphocytic infiltration. pSS has been closely associated with an enhanced risk of mucosa-associated lymphoid tissue (MALT) lymphoma. However, the dynamic epigenetic changes in gland cells accompanied with this pathogenesis are not fully understood. In present study, the labial gland (LG) and parotid gland (PG) tissues from two pSS patients with lymphoma were harvested including LG with negative anti-SSA/SSB and LG with positive anti-SSA/SSB at the first diagnosis of pSS, as well as PG with and without lymphoma tissues at the second diagnosis of MALT. ChIP-seq of H3K4/9/27/36/79me3 were performed. This data is benefit to advanced understanding the dynamic development of MALT from pSS, emphasizing the importance of epigenetic alterations in regulating transcription during the pathologic process.
2021-04-17 | E-MTAB-10340 | biostudies-arrayexpress
Project description:The costimulatory molecule CD226 has emerged as a key regulator of immune responses, yet its role in B cell-mediated pathogenesis of primary Sjögren's syndrome (pSS) remains poorly understood. The purpose of this study was to explore the relevance between CD226 + B cells and clinical features in pSS patients and to clarify the potential role of CD226-mediated B cell biological functions in contributing to the pathogenesis of pSS.Here, we identified a distinct CD226 + CD19 + B cell subset that exhibited pathogenic features in pSS. CD226 was significantly upregulated on B cells in the peripheral blood and salivary glands of pSS. patients.CD226 + CD19 + B cell showed a stronger correlation with clinical features, disease activity, and prognosis in pSS patients.The ROC curve demonstrated that CD226+CD19+ B cell exhibited significant diagnostic capability to distinguish pSS patients from healthy controls and to differentiate disease activity.This subset also exhibited heightened activation and pro-inflammatory phenotypes.Thereby,CD226+B cell may potentially be a promising therapeutic target and biomarker for the treatment of pSS.
2025-07-21 | GSE303018 | GEO
Project description:Department of Immunology & Center for Immunotherapy
2018-10-25 | PXD011572 |
Project description:Despite being one of the most common rheumatologic diseases, there is still no disease-modifying drug for primary Sjögren’s syndrome (pSS). Advancing our knowledge of the target tissue has been limited by the low dimensionality of histology techniques and the small size of human salivary gland biopsies. The goal of this study was to characterize CD4+ T cell subsets infiltrating the target tissue of the disease. We took advantage of a molecularly-validated mouse model of pSS (the NOD mouse model) and used cytometry techniques (flow and mass cytometry) in combination with transcriptional analyses. We identified three novel CD4+ T cell subsets that were not previously described in pSS pathogenesis and this GEO dataset reports the transcriptomic analysis of each of these three subsets: (1) effector Tregs (eTregs) expressing high levels of PD1 and ICOS as well as many immunoregulatory factors such as Il10, Areg, Fgl2, Itgb8; (2) Il21+ Th1 cells that also expressed high levels of PD1 and ICOS as well as osteopontin and shared striking transcriptional similarities with a pathogenic T follicular subset described in several lupus mouse models; (3) naïve PD1neg ICOSneg CD4+ T cells.
2016-09-01 | GSE81621 | GEO
Project description:Genome wide DNA methylation profiling of human labial salivary gland (LSG) biopsy samples obtained from 28 female members of the Sjögren's International Collaborative Clinical Alliance (SICCA) Registry. The Illumina HumanMethylation450 BeadChip platform was used to obtain DNA methylation profiles across more than 450,000 highly informative CpG sites. Samples included 15 non-case glands, and 13 glands from patients with Sjögren's Syndrome.
2018-02-02 | GSE110007 | GEO