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Expression data from retinal pigment epithelium in pigmented and albino mouse embryos

ABSTRACT: Expression data from retinal pigment epithelium in pigmented and albino mouse embryos

PROVIDER: PRJNA497407 | ENA |

REPOSITORIES: ENA

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Expression data from retinal pigment epithelium in pigmented and albino mouse embryos

Project description:In mammalian albinism, disrupted melanogenesis in the retinal pigment epithelium (RPE) is associated with fewer retinal ganglion cells (RGCs) projecting ipsilaterally to the brain, resulting in numerous abnormalities in the retina and visual pathway, especially binocular vision. To further understand the molecular link between disrupted RPE and a reduced ipsilateral RGC projection in albinism, we compared gene expression in the embryonic albino and pigmented mouse RPE.

2018-10-25 | GSE121467 | GEO

Gene Expression Analysis of Zebrafish Melanocytes, Iridophores, and Retinal Pigmented Epithelium Reveals Indicators of Biological Function and Developmental Origin

Project description:In order to facilitate understanding of pigment cell biology, we developed a method to concomitantly purify melanocytes, iridophores, and retinal pigmented epithelium from zebrafish, and analyzed their transcriptomes. Comparing expression data from these cell types and whole embryos allowed us to reveal gene expression co-enrichment in melanocytes and retinal pigmented epithelium, as well as in melanocytes and iridophores. We found 214 genes co-enriched in melanocytes and retinal pigmented epithelium, indicating the shared functions of melanin-producing cells. We found 62 genes significantly co-enriched in melanocytes and iridophores, illustrative of their shared developmental origins from the neural crest. This is also the first analysis of the iridophore transcriptome. Gene expression analysis for iridophores revealed extensive enrichment of specific enzymes to coordinate production of their guanine-based reflective pigment. We speculate the coordinated upregulation of specific enzymes from several metabolic pathways recycles the rate-limiting substrate for purine synthesis, phosphoribosyl pyrophosphate, thus constituting a guanine cycle. The purification procedure and expression analysis described here, along with the accompanying transcriptome-wide expression data, provide the first mRNA sequencing data for multiple purified zebrafish pigment cell types, and will be a useful resource for further studies of pigment cell biology. mRNA profiles of zebrafish pigment cells were generated using Illumina GAIIX sequencing

2013-04-26 | E-GEOD-46387 | biostudies-arrayexpress

Gene Expression Analysis of Zebrafish Melanocytes, Iridophores, and Retinal Pigmented Epithelium Reveals Indicators of Biological Function and Developmental Origin

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cryo-EM study of bovine retinal pigment epithelium cell lysate

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Project description:To characterize gene expression changes in mice following serous retinal detachments, we employed whole genome microarray expression profiling as a tool to identify genes with the potential effects on the neural retina as well as retinal pigmented epithelium. Total RNA was harvested from nm3342 (mutant) and age-matched wild-type (C57Bl/6J) mice at P30 or P365 for examination using microarray analysis. Retinas and retinal pigmented epithelium was harvested from both age-matched mutant and wild-type mice.

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

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