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Effects of Aflibercept administration at 25 mg per kg body weight in retinas of mice subjected to the oxygen-induced retinopathy protocol [P50]

ABSTRACT: We aimed at identifying the regulatory network of Aflibercept in the context of pathological neovascularization by using the oxygen-induced retinopathy mouse model as a surrogate of proliferative diabetic retinopathy Total RNA was collected from entire retinal cups dissected from 50-days old mice subjected to the oxygen-induced retinopathy protocol and subsequently injected with Aflibercept either on postnatal days 13 and 15 (OIR+AFLx2) or on postnatal days 13, 15 and 17. Non-injected OIR littermates (OIR) and age-matched mice housed in normoxic conditions (normoxia) were used as controls.

ORGANISM(S): Mus musculus

PROVIDER: GSE150794 | GEO | 2023/05/18

REPOSITORIES: GEO

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Effects of Aflibercept administration at 25 mg per kg body weight in retinas of mice subjected to the oxygen-induced retinopathy protocol [P19]

Project description:We aimed at identifying the regulatory network of Aflibercept in the context of pathological neovascularization by using the oxygen-induced retinopathy mouse model as a surrogate of proliferative diabetic retinopathy Total RNA was collected from entire retinal cups dissected from 19-days old mice subjected to the oxygen-induced retinopathy protocol and subsequently injected with Aflibercept either on postnatal days 13 and 15 (OIR+AFLx2) or on postnatal days 13, 15 and 17. Non-injected OIR littermates (OIR) and age-matched mice housed in normoxic conditions (normoxia) were used as controls.

2021-07-14 | GSE137705 | GEO

Effects of Aflibercept administration at 25 mg per kg body weight in retinas of mice subjected to the oxygen-induced retinopathy protocol

Project description:We aimed at identifying the regulatory network of Aflibercept in the context of pathological neovascularization by using the oxygen-induced retinopathy mouse model as a surrogate of proliferative diabetic retinopathy Total RNA was collected from entire retinal cups dissected from mice subjected to the oxygen-induced retinopathy protocol and subsequently injected with Aflibercept either on postnatal day 13 (collection on day 14) or on postnatal day 13 and 15 (collection on day 17). Non-injected OIR littermates and age-matched mice housed in normoxic conditions were used as controls.

2019-10-01 | GSE124956 | GEO

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.

2018-06-19 | GSE115949 | GEO

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)

2022-11-11 | GSE200195 | GEO

Single-cell RNAseq of Normoxic and OIR mouse retina by Drop-seq

Project description:Proliferative retinopathy is associated with abnormal vascular development (neovascularisation) of the retina. In mouse, the oxygen-induced retinopathy (OIR) model mimics the proliferative retinopathy found in extreme premature babies (Retinopathy of Prematurity) and in patients suffering from diabetic retinopathy. Using Drop-seq, we performed single-cell RNAseq analysis of mouse retina under physiological, normoxic (NORM) condition and retina under OIR condition, at postnatal day 14 and day 17, periods associated with a peak of neovascularisation. We used both whole retina cells or rod (CD73) depleted retina cells. Sorting conditions (whole vs. rod-depleted) derived count matrices were aligned with Seurat CCA and processed for dimensionality reduction and clustering.

2020-08-20 | GSE150703 | GEO

Profiling the retinal microRNA (miRNA) transcriptomes in a rat model of oxygen-induced retinopathy (OIR) by next-generation sequencing

Project description:Purpose: The study aimed to determine the transcriptome profile of retinal miRNA in a Sprague Dawley (SD) rat model of oxygen-induced retinopathy Methods: The newborn rats in OIR group were subjected to daily cycles of 80% oxygen for 21 hours and room air for 3 hours in a customised chamber for 14 days (postnatal day 14, P14), then return to room air for 15 days (postnatal day 29, P29). The newborn rats in sham group were housed in room air for 14 days. Retinal miRNA expression profiles of OIR or sham rats at P14 or OIR rats at P29 were generated by deep sequencing, in triplicate, using Illumina Hiseq-2500 RNA-seq platform. Briefly, the sequence reads from all samples were analysed for overall quality, screened for the presence of any contaminants and trimmed accordingly. The cleaned sequence reads were then processed through the quantification modules miRDEEP2 ver2.0.0.7 pipeline for known miRNA expression profiling. Rat miRNAs from miRBASE release21 were used for mapping and quantification. Differential miRNA expression analysis was undertaken using voom bioconductor package (https://www.bioconductor.org/packages/release/bioc/vignettes/limma/inst/doc/usersguide.pdf). Results: A total of 465 miRNAs were identified in the rat retina. The miRNAs with significantly altered levels (P<0.05) were identified in OIR rats at P14 compared with the sham controls or OIR rats at P29. Among those altered miRNAs, seven miRNAs were down-regulated in OIR rats at P14 with Log2 (Fold Change) < -1 fold, and no miRNAs were up-regulated. Additionally, the expression of these down-regulated miRNAs in OIR rats at P14 was restored at P29 after they were exposed to room air. Conclusion: Our study represents the first detailed analysis of retinal miRNA expression profile in rat model of OIR by miRNA-NGS technology.

2022-10-01 | GSE104620 | GEO

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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.

2024-01-09 | GSE227350 | GEO

Effects of inhibitors in mice with oxygen-induced retinopathy

Project description:Analysis of gene expression changes in oxygen-induced retinopathy mice treated intravitreally with inhibitors. oxygen-induced retinopathy(OIR)mice is one of the experimental systems that mimic retinal ischemic diseases. This model is widely used as an evaluation system for various surgical procedures.

2024-04-18 | GSE230668 | GEO

Profiles of N6-methyladenosine modifications of circular RNAs in oxygen-induced retinopathy

Project description:To identify the N6-methyladenosine (m6A) modified circular RNAs (circRNAs) involved in a mouse model of oxygen-induced retinopathy (OIR), microarray analysis was performed with the retinal samples from OIR mice and Room air controls.

2023-01-31 | GSE213362 | GEO

Gene Expression Profiling In Murine Retina Neovascularization Models

Project description:In order to find out the vital genes during retinal neovascularization (RNV), we set up OIR (oxygen-induced retinopathy; induced with 75%Â±2% oxygen) and wild-type C57BL/6J murine models. We observed the retinal vascular growth process daily both in OIR and wild-type mice through retinal flat-mount, and isolated total retinal RNA at different time points (P8, P9, P12, P13, P30) both in OIR and wild-type mice for gene expression analysis. At least three different retinae were accessed at each time point for observing the retinal vascular growth process. Ten neural retinae from five mice were harvested and pooled into one sample for gene expression analysis. Three biological replicates were used for each time point. Dye-swaps were performed.

2012-12-05 | E-GEOD-38762 | biostudies-arrayexpress

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