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RNA externalized by neutrophil extracellular traps promotes inflammatory pathways in endothelial cells

ABSTRACT: RNA externalized by neutrophil extracellular traps promotes inflammatory pathways in endothelial cells

PROVIDER: PRJNA672077 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12899717.fastq.gz	Fastqsanger.gz
	SRR12899718.fastq.gz	Fastqsanger.gz
	SRR12899719.fastq.gz	Fastqsanger.gz
	SRR12899720.fastq.gz	Fastqsanger.gz
	SRR12899721.fastq.gz	Fastqsanger.gz

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Specific post-translational histone mod. of neutrophil extracellular traps as immunogens & potential SLE Ab targets.

Project description:This SuperSeries is composed of the following subset Series: GSE32542: Murine serum reactivity to common autoantigens in response to immunization with neutrophil extracellular traps GSE32543: Human and murine serum reactivity to specific histone posttranslational modifications in neutrophil extracellular traps Refer to individual Series

2012-01-26 | E-GEOD-32544 | biostudies-arrayexpress

RNA externalized by neutrophil extracellular traps promotes inflammatory pathways in endothelial cells

Project description:Abstract. Objectives: Neutrophil extracellular traps (NETs) are extracellular lattices composed of nucleic material bound to neutrophil granule proteins. NETs may play pathogenic roles in development and severity of autoimmune diseases such as systemic lupus erythematosus (SLE), at least in part, through induction of type I interferon (IFN) responses via externalization of oxidized immunostimulatory DNA. A distinct subset of SLE proinflammatory neutrophils (low density granulocytes; LDGs) displays enhanced ability to form proinflammatory NETs that damage the vasculature. We assessed whether NET-bound RNA can contribute to inflammatory responses in endothelial cells and the pathways that mediate this effect. Methods: Expression of newly-synthesized RNA was quantified if healthy control and lupus NETs. The ability of endothelial cells to take up NET-bound RNA and downstream induction of type I IFN responses was quantified. RNAs present in NETs were sequenced and specific small RNAs were tested for induction of endothelial type I IFN pathways. Results: NETs extruded newly-synthesized RNA that was internalized by endothelial cells and this was enhanced when NET nucleic acids were oxidized, particularly in lupus LDG NETs. Internalization of NET-bound total RNA by endothelial cells was dependent on endosomal TLRs and the actin cytoskeleton and induced type I IFN stimulated genes (ISGs). This ISG induction was dependent on NET-associated miR-let7b, a small RNA expressed at higher levels in LDG NETs, which acted as a TLR7 agonist. Conclusion: These results highlight underappreciated roles for small RNAs externalized in NETs in the induction of proinflammatory responses in vascular cells, with implications to lupus vasculopathy.

2023-07-31 | GSE160143 | GEO

Neutrophil extracellular traps trigger inflammatory bone destruction in periodontitis

Project description:Neutrophil extracellular traps trigger inflammatory bone destruction in periodontitis

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Neutrophil extracellular traps trigger inflammatory bone destruction in periodontitis

Project description:Neutrophil recruitment and activation are hallmarks of the prevalent inflammatory disease, periodontitis. However, the mechanisms by which neutrophils contribute to in inflammatory bone destruction remain unclear. Herein, we document that neutrophil extracellular traps (NETs) have a direct role in mediating inflammatory pathology. In an established animal model of periodontitis, we demonstrate that genetic or pharmacologic inhibition of NETs formation, or removal of NETs by DNase-Ⅰ, alleviates inflammatory bone loss in vivo. Investigating the mechanisms by which NETs drive periodontal inflammation, we find that extracellular histones have a direct role in disease progression. Consistent with findings in animal models, histones bearing classic NET-associated post-translational modifications are correlated with disease severity and are significantly elevated in local lesions and systemic circulation of patients with periodontitis. Our work reveals NETs-associated components as pathogenic mediators, potential biomarkers, and therapeutic targets for periodontitis.

2023-05-23 | GSE228021 | GEO

Piezo1 induces neutrophil extracellular traps formation directing M1 macrophage differentiation

Project description:To research the neutrophil extracellular traps in the regulation of macrophages differentiation, we performed gene expression profiling analysis using data obtained from RNA-seq of mice and control with virus infection.

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mRNA, ncRNA-seq and miRNA-seq of AGS cellline and AGS cellline with neutrophil extracellular traps

Project description:ncRNA-seq and miRNA-seq of AGS cellline and AGS cellline with neutrophil extracellular traps

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Neutrophil extracellular traps mediate articular cartilage damage and enhance the immunogenicity of cartilage components in rheumatoid arthritis

Project description:This study invesigates the effects of neutrophil extracellular traps (NETs) on articular cartilage degredation and resulting autoimmune responses in rheumatoid arthritis.

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Inflammation and neutrophil extracellular traps in cerebral cavernous malformation

Project description:Inflammation and neutrophil extracellular traps in cerebral cavernous malformation

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Hydrogen gas inhibits the formation of neutrophil extracellular traps

Project description:Hydrogen gas inhibits the formation of neutrophil extracellular traps

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Inflammation and neutrophil extracellular traps in cerebral cavernous malformation

Project description:Cerebral Cavernous Malformation (CCM) is a brain vascular disease with various neurological symptoms. In this study, we describe the inflammatory profile in CCM and show for the first time the formation of neutrophil extracellular traps (NETs) in rodents and humans with CCM. Through RNA-seq analysis of cerebellum endothelial cells from wild-type mice and mice with anendothelial cell-specific ablation of the Ccm3 gene (Ccm3iECKO), we show that endothelial cells from Ccm3iECKO mice have anincreased expression of inflammation-related genes.

2023-10-31 | GSE246373 | GEO

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