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Glucocorticoid Receptor Signaling is Critical for Mouse Corneal Development, Inhibition of Inflammatory Response and Neovascularization of the Cornea

ABSTRACT: Glucocorticoid Receptor Signaling is Critical for Mouse Corneal Development, Inhibition of Inflammatory Response and Neovascularization of the Cornea

PROVIDER: PRJNA881383 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR21609007_1.fastq.gz	Fastqsanger.gz
	SRR21609007_2.fastq.gz	Fastqsanger.gz
	SRR21609008_1.fastq.gz	Fastqsanger.gz
	SRR21609008_2.fastq.gz	Fastqsanger.gz
	SRR21609009_1.fastq.gz	Fastqsanger.gz

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Glucocorticoid Receptor Signaling is Critical for Mouse Corneal Development, Inhibition of Inflammatory Response and Neovascularization of the Cornea

Project description:Synthetic glucocorticoids are widely prescribed in the treatment of ocular infections and disorders. The actions of glucocorticoids are mediated by the glucocorticoid receptor (GR); however, the molecular and physiological functions of GR signaling in the cornea are poorly understood. In this study, we show that treatment of mice with glucocorticoid eye drops led to a profound regulation of the corneal transcriptome. To determine the global transcriptional profile of GR activity in the cornea, we treated adult wild-type male mice with dexamethasone (a synthetic glucocorticoid) eye drops or vehicle eye drops for 6 hours and then performed RNA sequencing on RNA extracted from whole corneas. All the animals used for this study were adrenalectomized to remove endogenous glucocorticoids. These data demonstrate that a short exposure of glucocorticoids to the cornea results in major changes in the gene expression landscape.

2024-06-27 | GSE213571 | GEO

Glucocorticoid Receptor Signaling is Critical for Mouse Corneal Development, Inhibition of Inflammatory Response and Neovascularization of the Cornea

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Glucocorticoid Receptor Signaling is Critical for Mouse Corneal Development, Inhibition of Inflammatory Response and Neovascularization of the Cornea

Project description:Glucocorticoid Receptor Signaling is Critical for Mouse Corneal Development, Inhibition of Inflammatory Response and Neovascularization of the Cornea

| PRJNA882031 | ENA

Gene Expression Profiling In Murine Corneal Neovascularization Models

Project description:In order to find out the vital genes during the corneal neovascularization (CNV), we set up two CNV models, one being induced by suture placement and the other by alkali burn to the corneal center. Young adult Balb/c and C57BL/6 were used. The corneas were checked daily for CNV development and some of the corneas were removed at two pre-determined time points for RNA extraction. Preliminary experiment indicated slightly different dynamics in suture- or chemical burn-induced CNV. Vigorous growth appeared at day 5 and day 6 in S-CNV and CB-CNV, and reached maximum length around day 10 and day 14, respectively, in S-CNV and CB-CNV. To check whether genetic MHC background has any effect on development of CNV, we compared CB-CNV in Balb/c and C57BL/6 mice at day 6. Corneas from Balb/c mice were isolated 5 and 10 days after suture-induced CNV, and 6 and 14 days after chemical burn-induced CNV. Corneas from C57BL/6 mice were isolated 6 days after chemical burn-induced CNV. Each time point had two or three biological replications.

2011-02-08 | E-GEOD-23347 | biostudies-arrayexpress

The tissue-engineered human cornea as a model to study expression of matrix metalloproteinases during corneal wound healing

Project description:Corneal injuries remain a major cause of consultation in the ophthalmology clinics worldwide. Repair of corneal wounds is a complex mechanism that involves cell death, migration, proliferation, differentiation, and extracellular matrix (ECM) remodeling. In the present study, we used a tissue-engineered, two-layers (epithelium and stroma) human cornea as a biomaterial to study both the cellular and molecular mechanisms of wound healing. Gene profiling on microarrays revealed important alterations in the pattern of genes expressed by tissue-engineered corneas in response to wound healing. Expression of many MMPs-encoding genes was shown by microarray and qPCR analyses to increase in the migrating epithelium of wounded corneas. Many of these enzymes were converted into their enzymatically active form as wound closure proceeded. In addition, expression of MMPs by human corneal epithelial cells (HCECs) was affected both by the stromal fibroblasts and the collagen-enriched ECM they produce. Most of all, results from mass spectrometry analyses provided evidence that a fully stratified epithelium is required for proper synthesis and organization of the ECM on which the epithelial cells adhere. In conclusion, and because of the many characteristics it shares with the native cornea, this human two layers corneal substitute may prove particularly useful to decipher the mechanistic details of corneal wound healing. Primary cultures of human corneal epithelial cells cultivated on BSA (number of replicates: 7), Collagen type I (number of replicates: 2), Collagen type IV (number of replicates: 2), Fibronectin (number of replicates: 2), Tenascin C (number of replicates: 2) and Laminin (number of replicates: 2) matrix. Central, internal and external ring of wounded Tissue-engineered human cornea.

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Single cell RNA-seq of human cornea organoids identifies cell fates of a developing immature cornea

Project description:The cornea is a protective and refractive barrier in the eye crucial for vision. Understanding the human cornea in health, disease and cell-based treatments can be greatly advanced with cornea organoids developed in culture from induced pluripotent stem cells. While a limited number of studies have investigated the single-cell transcriptomic composition of the human cornea, its organoids have not been examined similarly. Here we elucidated the transcriptomic cell fate map of 4-month-old human cornea organoids and human donor corneas. The organoids harbor cell clusters that resemble cells of the corneal epithelium, stroma and endothelium with sub-populations that capture signatures of early developmental states. Unlike the adult cornea where the largest cell population is stromal, the organoids contain large proportions of epithelial and endothelial-like cells. These corneal organoids offer a three-dimensional model to study corneal diseases and integrated responses of different cell types.

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Transcription profiling of mouse primary cultures from mouse cornea vs those of the adult and 10-day postnatal mouse cornea to elucidate biological processes underlying the keratocyte, fibroblast, and myofibroblast phenotypes of corneal stromal cells

Project description:To elucidate biological processes underlying the keratocyte, fibroblast, and myofibroblast phenotypes of corneal stromal cells, the gene expression patterns of these primary cultures from mouse cornea were compared with those of the adult and 10-day postnatal mouse cornea.

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Gene Expression Profiling In Murine Corneal Neovascularization Models

2011-02-08 | GSE23347 | GEO

Transcription profiling of mouse cornea from three strains reveal central corneal thickness is a genetic dependent trait among inbred strains of mice

Project description:Central corneal thickness (CCT) exhibits broad variability. We determined the corneal gene expression profile three mouse strains with distinct corneal thickness: C57BLKS/J (88.6 um), SJL/J (123.5 um), and C57BL/6J (100.1 um). Experiment Overall Design: Enucleated eyes from 4 month old mice were dissected in phosphate-buffered saline and a punch of central cornea was collected utilizing a 2-mm biopsy punch. Two central corneal punches (left and right eyes) were pooled from each mouse to form one sample; three samples were analyzed per strain.

2009-09-12 | E-GEOD-14270 | biostudies-arrayexpress

mouse corneal stromal cells

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