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ABSTRACT: Photoselective nets and kiwi microbiome

PROVIDER: PRJNA1013064 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR25914300_1.fastq.gz	Fastqsanger.gz
	SRR25914300_2.fastq.gz	Fastqsanger.gz
	SRR25914301_1.fastq.gz	Fastqsanger.gz
	SRR25914301_2.fastq.gz	Fastqsanger.gz
	SRR25914302_1.fastq.gz	Fastqsanger.gz

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Project description:Kiwi genomics

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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

Gene expression analysis in liver of rats fed with atherogenic diet (1% cholesterol) and supplemented with 5% Geneva or 5% Hayward kiwifruit lyophylisate

Project description:Transcriptional profiling of liver tissue from rats fed with standard diet with 1% cholesterol (control diet) and the same diet supplemented with 5% Geneva (test sample1) or 5% Hayward (test sample2) kiwifruit lyophylisate. The goal was to determine the anti-atherogenic effect of kiwi fruit supplementation and their impact on gene expression preventing hepatic steatosis

2024-11-27 | GSE79715 | GEO

MicroRNA expression profiling of small-intestine neuroendocrine tumors and human neuroendocrine tumor cell lines

Project description:Small intestinal neuroendocrine tumors (SI-NETs) arise from serotonin-producing enterochromaffin cells. SI-NETs are often well-differentiated tumors and most patients have regional or distant metastases at initial presentation. MicroRNAs (miRs) are post-transcriptional regulators which are important in diverse biological processes and can function as tumor suppressor genes or oncogenes. This study aims to identify an exclusive SI-NETs miR profile that may have a critical role in development, diagnosis, prognosis and progression of these malignancies.

2013-03-01 | GSE33568 | GEO

Changes in intestinal permeability and gut microbiota following diet-induced weight loss in patients with metabolic dysfunction-associated steatohepatitis and liver fibrosis

Project description:We explore whether a low-energy diet intervention for Metabolic dysfunction-associated steatohepatitis (MASH) improves liver disease by means of modulating the gut microbiome. 16 individuals were given a low-energy diet (880 kcal, consisting of bars, soups, and shakes) for 12 weeks, followed by a stepped re-introduction to whole for an additional 12 weeks. Stool samples were obtained at 0, 12, and 24 weeks for microbiome analysis. Fecal microbiome were measured using 16S rRNA gene sequencing. Positive control (Zymo DNA standard D6305) and negative control (PBS extraction) were included in the sequencing. We found that low-energy diet improved MASH disease without lasting alterations to the gut microbiome.

2024-12-31 | E-MTAB-14061 | biostudies-arrayexpress

RNA Sequencing reveals transcriptome profiling of HUVECs in response to NETs ± defibrotide

Project description:We reported the application of RNA sequecing to broadly understand the pathways associated with HUVECs exposed to vehicle, NETs, or NETs + defibrotide. We identified 440 differentially expressed genes (300 upregulated) in HUVECs upon NET stimulation as compared with vehicle. Conversely, there were 229 differentially expressed genes (192 downregulated) when the NETs + defibrotide group was compared to NETs alone.

2021-10-13 | GSE179828 | GEO

Neutrophil Extracellular Traps (NETs) promote macrophage inflammation and impair atherosclerosis resolution in mice with diabetes

Project description:Neutrophil extracellular traps (NETs) promote inflammation and atherosclerosis progression. In diabetes they are increased and impair wound healing, during which inflammation normally resolves. Atherosclerosis regression, a process resembling wound healing, is also impaired in diabetes. Thus, we hypothesized that NETs impede atherosclerosis regression in diabetes through unresolved inflammation. Objective: To investigate in diabetes the effect of NETs on plaque macrophage inflammation and whether NETs reduction improves atherosclerosis regression. Findings: Transcriptomic profiling of plaque macrophages from NET positive and negative areas in Ldlr-/- mice revealed inflammasome and glycolysis pathway upregulation, indicating a pro-inflammatory phenotype. During atherosclerosis regression in non-diabetic mice, plaque NET content decreased. In contrast, in diabetic mouse plaques NETs were enriched and persisted after lipid-lowering. DNase1 treatment (to degrade NETs) of diabetic mice reduced plaque NETs and macrophage inflammation and improved atherosclerosis regression after lipid-lowering. Conclusions: NETs decline during atherosclerosis regression in non-diabetic mice, but persist in diabetes and impair regression by exacerbating macrophage inflammation. DNase1 reduced diabetic plaque NETs and macrophage inflammation, and restored atherosclerosis resolution after lipid-lowering, despite ongoing hyperglycemia. Given that humans with diabetes also exhibit impaired atherosclerosis resolution with lipid-lowering, these data suggest that NETs contribute to the increased CVD risk in this population.

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MicroRNA expression profiling of small-intestine neuroendocrine tumors and human neuroendocrine tumor cell lines

2012-11-08 | E-MTAB-862 | biostudies-arrayexpress

microRNA profiling in different grading of gastroenteropancreatic neuroendocrine tumors (GEP-NETs)

Project description:Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) are rare and heterogeneous tumors presenting a wide spectrum of different clinical and biological characteristics. In these tumors, the histological evaluation is a crucial element of clinical management. Currently, tumor grading, determined by Ki-67 staining and mitotic counts, is the most reliable predictor of prognosis. This scoring method is time-consuming and a high reproducibility cannot be achieved. Novel approaches are needed to support histological evaluation and prognosis. In this study, starting from a microarray analysis, we defined the miRNAs signature for poorly differentiated NETs (G3) compared to well differentiated NETs (G1 and G2) consisting of 56 deregulated miRNAs. Moreover, we identified 8 miRNAs that were expressed in all GEP-NETs grades but at different level. Among these miRNAs, we found miR-96-5p that raised its expression levels from grade 1 to grade 3; inversely, its target FOXO1 was decrease from grade 1 to grade 3. Our results reveal that the miRNAs expression profile of GEP-NET correlates their expression with grading showing a potential advantage of miRNA quantification to aid clinicians in the classification of common GEP-NETs subtypes.

2020-08-04 | GSE135034 | GEO

Transcription profiling of human blood taken from individuals fed an antioxidant-rich diet or a diet containing kiwi-fruit to evaluate the effect on gene expression with emphasis on stress and repair related processes

Project description:Plant-based diets rich in fruit and vegetables can prevent development of several chronic age-related diseases such as cancer and cardiovascular diseases. The mechanisms behind this protective effect is not elucidated. We have studied whether a specially designed antioxidant-rich food diet and a kiwi-fruit intervention can affect whole genome expression in human blood cells with emphasis on stress and repair related process.

2010-02-02 | E-MEXP-2030 | biostudies-arrayexpress

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