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MTOR activity is essential for retinal pigment epithelium regeneration in zebrafish

ABSTRACT: mTOR activity is essential for retinal pigment epithelium regeneration in zebrafish

PROVIDER: PRJNA730498 | ENA |

REPOSITORIES: ENA

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mTOR activity is essential for retinal pigment epithelium regeneration in zebrafish

Project description:Zebrafish is capable of endogenously regenerating functional retina pigment epithelium (RPE) after widespread genetic ablation which involves a series of cellular and molecular events that remain to be defined. Here, using the RPE genetic ablation model in zebrafish, we observed that mTOR signaling was activated in the RPE cells post-ablation. Pharmacological and genetic inhibition of mTOR signaling impaired RPE regeneration, while activation of mTOR signaling benefited RPE recovery, suggesting mTOR signaling was required and sufficient for RPE regeneration post-ablation in zebrafish. We further identified an interesting crosstalk between mTOR signaling and microglia/macrophages during RPE regeneration that mTOR acts as an upstream regulator of microglia/macrophage infiltration to the injury site while microglia/macrophage, in turn, rainenforce mTOR activity.

2022-03-01 | GSE174538 | GEO

cryo-EM study of bovine retinal pigment epithelium cell lysate

Project description:This is the proteomic analysis data of bovine retinal pigment epithelium cell lysate subjected to cryo-EM study.

2023-01-02 | PXD037186 | Pride

Oxidative stress alters transcript localization of disease-causing genes in the retinal pigment epithelium

Project description:To evaluate the effect of oxidative stress on transcript localization in the retinal pigment epithelium (RPE), we performed poly-A RNA sequencing on nuclear and cytoplasmic fractions from induced pluripotent stem cell-derived retinal pigment epithelium (iPSC-RPE) cells exposed to hydrogen peroxide, as well as untreated controls.

2022-06-23 | GSE158909 | GEO

Functional Retinal Pigment Epithelium-like Cells from Human Fibroblasts

Project description:The retinal pigment epithelium (RPE) provides vital support to photoreceptor cells and its dysfunction is associated with the onset and progression of age-related macular degeneration (AMD). Surgical provision of RPE cells may ameliorate AMD and thus it would be valuable to develop sources of patient-matched RPE cells for this application of regenerative medicine. We describe here the generation of functional RPE-like cells from fibroblasts that represent an important step toward that goal. We identified candidate master transcriptional regulators of RPEs using a novel computational method and then used these regulators to guide exploration of the transcriptional regulatory circuitry of RPE cells and to reprogram human fibroblasts into RPE-like cells. The RPE-like cells share key features with RPEs derived from healthy individuals, including morphology, gene expression and function, and thus represent a step toward the goal of generating patient-matched RPE cells for treatment of macular degeneration. Expression analysis was performed on induced retinal pigment epithelium-like cells.

2015-09-23 | E-GEOD-64264 | biostudies-arrayexpress

THE IMMUNE RESPONSE MODULATES ZEBRAFISH RETINAL PIGMENT EPITHELIUM REGENERATION [RPE]

Project description:THE IMMUNE RESPONSE MODULATES ZEBRAFISH RETINAL PIGMENT EPITHELIUM REGENERATION [RPE]

| PRJNA649260 | ENA

THE IMMUNE RESPONSE MODULATES ZEBRAFISH RETINAL PIGMENT EPITHELIUM REGENERATION [macrophages]

Project description:THE IMMUNE RESPONSE MODULATES ZEBRAFISH RETINAL PIGMENT EPITHELIUM REGENERATION [macrophages]

| PRJNA649262 | ENA

Day-night rhythm in murine retinal pigment epithelium

Project description:Day-night rhythm in murine retinal pigment epithelium

| PRJNA564263 | ENA

Whole genome methylation profiling of the retinal pigment epithelium of individuals with age-related macular degeneration

Project description:Illumina Infinium HumanMethylation450 BeadChip data from genomic DNA of retinal pigment epithelium from Age-related Macular Degeneration patients or age-matched controls.

2019-08-01 | E-MTAB-7183 | biostudies-arrayexpress

Transcriptomic and proteomic retinal pigment epithelium signatures of age-related macular degeneration

Project description:To identify disease-specific transcriptional programs in retinal pigment epithelium (RPE) cells, fibroblasts from 43 patients with geographic atrophy (GA) were reprogrammed into induced pluripotent stem cells (iPSCs) before being differentiated into RPE and compared to those from 36 healthy individuals. 127,659 RPE cells were profiled via single cell RNA-sequencing (scRNA-seq) and cell classification identified 7 cellular states related to RPE maturation.

2022-06-20 | E-MTAB-11642 | biostudies-arrayexpress

RNA-seq of retinal pigment epithelium (RPE) derived from human induced pluripotent stem cells (iPSCs): healthy control and USH1B patient iPSCs

Project description:Compare transcriptomes of control and USH1B patient iPSC-derived retinal pigment epithelium (RPE) to elucidate disease mechanisms of Usher syndrome type IB (USH1B). USH1B patient fibroblasts were collected at Great Ormond Street Hospital (GOSH) and reprogrammed to iPSCs. Control and patient iPSCs differentiated in vitro to generate retinal pigment epithelium (RPE) and collected for RNA-seq at 24 week. Sequencing was performed at University College London (UCL) Genomics on a NovaSeq 6000 system. Data aligned to the human genome UCSC hg38 using RNA-STAR 2.5.2b.

2023-08-22 | E-MTAB-12165 | biostudies-arrayexpress

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