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RNA sequencing of primary Sjögren’s syndrome neutrophils

ABSTRACT: RNA sequencing of primary Sjögren’s syndrome neutrophils

PROVIDER: PRJNA799777 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR17713444_1.fastq.gz	Fastqsanger.gz
	SRR17713444_2.fastq.gz	Fastqsanger.gz
	SRR17713445_1.fastq.gz	Fastqsanger.gz
	SRR17713445_2.fastq.gz	Fastqsanger.gz
	SRR17713446_1.fastq.gz	Fastqsanger.gz

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RNA sequencing of primary Sjögren’s syndrome neutrophils

Project description:Objective Neutrophils and aberrant NETosis have been implicated in the pathogenesis of diverse autoimmune diseases, however, their roles in primary Sjögren’s syndrome (pSS) remain unclear. We aimed to reveal the potential roles of neutrophils and neutrophil extracellular traps (NETs) in this study. Methods pSS patients were enrolled according to the corresponding diagnostic criteria. NETosis markers were measured in plasma and small salivary gland using ELISA and immunofluorescence. The gene signatures of neutrophils were assessed by RNA-Seq and RT-PCR. Reactive oxygen species (ROS), mitochondrial ROS (mitoROS) production and JC-1 was measured by flow cytometry. Results NETosis markers including cell free-DNA (cf-DNA), myeloperoxidase (MPO) in plasma and small salivary gland from pSS patients were significantly higher than healthy controls (HCs) and were associated with disease activity. RNA sequencing and RT-qPCR revealed activated Type I IFN signaling pathway and higher expression of type I interferon related genes in pSS neutrophils. Further stimulating with IFN-α 2a in vitro significantly induced ROS production and JC-1 monomer percentage in pSS neutrophils. Conclusions Our data suggest the involvement of neutrophils and enhanced NETosis in pSS patients. Further mechanism study in vitro revealed that type I IFN activation in pSS neutrophils led to mitochondrial damage and related ROS production which finally result in the generation of NETs.

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Transcription profiling by array of parotid tissue from Primary Sjögren’s Syndrome and controls

Project description:Primary Sjögren’s syndrome (pSS) is a chronic autoimmune disease with complex etiopathogenesis. Here we use Affymetrix U133 plus 2.0 microarray gene expression data from human parotid tissue. Parotid gland tissues were harvested from 17 pSS and 14 14 non-pSS sicca patients and 18 controls. The data were used in the following article: Nazmul-Hossain ANM, Pollard RPE, Kroese FGM, Vissink A, Kallenberg CGM, Spijkervet FKL, Bootsma H, Michie SA, Gorr SU, Peck AB, Cai C, Zhou H, Horvath S, Wong DTW (2012) Systems Analysis of Primary Sjögren’s Syndrome Pathogenesis in Salivary Glands: Comparative Pathways and Molecular Events in Humans and a Mouse Model. Parotid gland tissues were harvested from 17 pSS and 14 non-pSS sicca patients and 18 controls.

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Gene expression in minor salivary gland of female patients with primary Sjögren’s syndrome (pSS) and healthy volunteers

Project description:To study the difference of gene expression profile in minor salivary glands of female patients with primary Sjögren’s syndrome (pSS) and healthy volunteers

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Purified CD123+BDCA4+ plasmacytoid dendritic sorted cell-population derived from IFN signature positive primary Sjögren’s syndrome patients and IFN signature negative primary Sjögren’s syndrome patients compared to Healthy Control individuals

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Single-cell profiling reveals pathogenic role and differentiation trajectory of Granzyme K+ tissue resident memory CD8+T cells in primary Sjögren’s syndrome

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