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RNA sequencing of sorted P17 murine endothelial cells from the OIR model with OSM or PBS intravitreal injection at P12

ABSTRACT: RNA sequencing of sorted P17 murine endothelial cells from the OIR model with OSM or PBS intravitreal injection at P12

PROVIDER: PRJNA944689 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR23864467.fastq.gz	Fastqsanger.gz
	SRR23864468.fastq.gz	Fastqsanger.gz
	SRR23864469.fastq.gz	Fastqsanger.gz
	SRR23864470.fastq.gz	Fastqsanger.gz
	SRR23864471.fastq.gz	Fastqsanger.gz

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RNA sequencing of sorted P17 murine endothelial cells from the OIR model with OSM or PBS intravitreal injection at P12

Project description:IL-6 family cytokines as OSM modify angiogenesis to different degree. This study investigates the influence of intravitreal injection of OSM on the formation of neovascularization in the mice model of Oxygen-induced retinopathy (OIR). Mice at P12 were injected OSM or PBS , retinal cells isolated at P17 via sort and the transcriptome analyzed by RNA sequencing.

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RNA-sequencing of the oxygen induced retinopathy (OIR) model in C57BL/6 mice

Project description:Pathological retinal angiogenesis is one of the major causes of vision loss worldwide. The breakdown of blood vessels and aberrant vessels growth usually lead to hemorrhage, macular edema, fibrotic scar, and retinal detachment. OIR model serves as a proxy for human pathological retinal neovascularization such as proliferative diabetic retinopathy, retinal vein occlusion and retinopathy of prematurity. C57BL/6 mice were exposed to 75% O2 in a hyperoxic chamber from postnatal day P7 to P12 and then returned to room air. The greatest neovascular response occurred at postnatal 17 days (P17) when the mice are put back to room air condition for 5 days. In order to reveal potential genes that involve in pathological neovascularization, we performed transcriptomic analyses of retina of P17.

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Murine model of oxygen-induced retinopathy - 3 time points [retina]

Project description:To study early and late transcriptional changes introduced to blood and retinal tissue in murine oxygen-induced retinopathy (OIR). From retinal cells RNA was extracted at three time points: immediately after end of hyperoxia (P12), at P17 and P28.

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Murine model of oxygen-induced retinopathy - 3 time points [blood]

Project description:To study early and late transcriptional changes introduced to blood and retinal tissue in murine oxygen-induced retinopathy (OIR). From blood MNCs total RNA was extracted at three time points: immediately after end of hyperoxia (P12), at P17 and P28.

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Transcriptome analysis of the oxygen induced retinopathy (OIR) model at 5 different timepoints

Project description:High-throughput sequencing of murine retina of the oxygen induced retinopathy (OIR) model compared to control mice at 5 consecutive days (P12-P16)

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Progenitor cell combination normalizes retinal vascular development by enhancing pericyte ensheathment in the oxygen-induced retinopathy (OIR) model

Project description:Retinopathy of prematurity (ROP) is a disorder of the developing retina of preterm infants. ROP can lead to blindness due to abnormal angiogenesis that is the result of suspended vascular development and vaso-obliteration leading to severe retinal stress and hypoxia. We tested the hypothesis that a combined treatment with two human progenitor populations, the CD34+ cells, bone marrow-derived, and the endothelial colony-forming cells (ECFCs) synergistically protected the developing retinal vasculature in a murine model of ROP, the oxygen-induced retinopathy (OIR)., CD34+ cells alone, ECFCs alone, or a combination thereof were injected intravitreally at either P5 or P12 and pups were euthanized at P17. Retinas from OIR mice injected with ECFCs or the combined treatment revealed formation of the deep vascular plexus (DVP) while still in hyperoxia, with normal appearing connections between the superficial vascular plexus (SVP) and the DVP. The combination therapy prevented aberrant retinal neovascularization and was more effective anatomically and functionally at rescuing the ischemia phenotype than either cell type alone. The beneficial effect of the cell combination was the result of their ability to orchestrate an acceleration of vascular development and more rapid ensheathment of pericytes on the developing vessels.

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Expression profiling of microRNAs in oxygen-induced retinal neovascularization in mice

Project description:The purpose of this study is to identify disease-related miRNAs in retinas of a mouse model of oxygen-induced retinopathy (OIR). OIR pups were exposed to 75% oxygen at postnatal day (P)7 for 5 days, and were returned to room air at P12. The miRNAs expression profiles in the retinas from OIR mice at P17 and room air controls were determined through microarray analysis. Expressions of significantly upregulated and downregulated miRNAs in the OIR retinas and controls were confirmed through quantitative real-time RT-PCR (qPCR). Compared to the room air controls, 3 miRNAs were significantly up-regulated, and 8 miRNAs were down-regulated in OIR retinas. Our findings indicated that several miRNAs were differentially expressed in the oxygen-induced retinal neovascularization, which might provide novel therapeutic targets in regulating retinal neovascular diseases.

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Project description:Different inbred strains of rats differ in their susceptibility to OIR, an animal model of human retinopathy of prematurity. We examined gene expression profiles in Fischer 344 (F344, resistant to OIR) and Sprague Dawley (SD, susceptible to OIR) rats at the early time point of day 3 to identifying gene pathways related to the underlying genetic cause of phenotypic differences between strains. To examine gene expression changes in rats strains which are resistant and susceptible to OIR, four different experimental conditions were analysed: F344 cyclic hyperoxia (O2) exposed, F344 room air (RA) exposed, SD O2 exposed and SD RA exposed. A minimum of two samples of pooled RNA, comprising of 3 individual rats from 2 separate litters, was used for each experimental condition. Pooled RNA from different rats were used as biological replicates. An additional sample for F344 O2 and SD RA rats was included on the basis of the principal components analysis from the initial 8 samples. Pooled RNA from age-matched room air-exposed rats were used as controls.

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Expression profiles of mRNAs in the retinas of OIR wildtype, OIR IL-19 knockout and room air control mice.

Project description:Seven-day-old C57BL/6 mice and IL-19 knockout (KO) mice were subjected to 75% oxygen for 5 days to induce OIR. To explore the mechanism that caused by IL-19 on retinal neovascularization, Gene expressions among retinas of room air control mice, OIR wildtype mice, and OIR IL-19 knockout mice were measured by RNA-sequencing (RNA-seq).

2022-01-24 | GSE194176 | GEO

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