Project description:We elucidate the role of prospero-related homeobox 1 (Prox1) in rendering the mammalian retina incompetent for MG(Muller glia cell)-derived regeneration. Prox1 accumulates in MG in the degenerating human and mouse retinas but not in those in the regenerating zebrafish retina. We investigated whether the transition of MG to proliferative MGPCs occurred in MNU-injured Prox1fg/fg;Chx10-CreERT2 mouse retinas through single-cell RNA sequencing analysis.
Project description:We found that the zebrafish non-coding element careg, which is induced in regenerating fins and heart, also participates in retina regeneration. Its activation persisted mostly in Müller glia from the onset to the termination of retina restoration. To assess the involvement of the careg:EGFP reporter during retina regeneration, we used a chemical injury model with MNU treatment. To identify the molecular profile of these cells, we performed a single-cell RNA sequencing (scRNA-seq) experiment of retinas dissected from adult careg:EGFP zebrafish at 3, 7, and 10 dpMNU. Our control retinas were dissected from fish at 3 days after treatment with heat-inactivated MNU
Project description:The goal of this study is to identify genes upregulated in the DTA-injured retina. Methods: Retinal mRNA profiles of control (DTAwt) and DTA (DTAmut) mice at day 1 and 5 post-injry were generated by deep-sequencing with Illumina sequencer. Results: RNA-seq tags were mapped to the mouse mm9 reference genome assembly using Tophat2 ver. 2.0.8b, with FPKM values caluculated with Cufflinks ver. 2.1.1 with the default option.Comparison of the genes upregulated in the DTA-injured retina at day 1 and 5 revealed commonly upregulated genes as well as the genes specific to day 1 and 5. Conclusions: Our study provides the detailed analysis of retinal transcriptomes in the DTA-injured retina.
Project description:Single cell RNA-sequencing shows cell type specific expression of genes in the retina. Single cell ATAC-sequencing of the wild type retina at multiple stages revealed that chromatin in the Vsx2 CRC SE, a stage- and cell type-specific core regulatory circuit super-enhancer (CRC-SE) upstream of the Vsx2 gene, was only open in bipolar cells in Region3 in adult retina. Chromatin in Region0 was open in retinal progenitor cells in E14.5 retina.
Project description:Single cell RNA-sequencing shows cell type specific expression of genes in the retina. Single cell ATAC-sequencing of the wild type retina revealed that chromatin in the Vsx2 CRC SE, a stage- and cell type-specific core regulatory circuit super-enhancer (CRC-SE) upstream of the Vsx2 gene, was only open in bipolar cells. Deletion of the Vsx2 CRC-SE in mice led to the loss of bipolar neurons in the retina, which was confirmed by scRNA-sequencing of Vsx2SEKO mice.
Project description:The goal of this study is to identify genes differentially expressed between microglia and infiltrating macrophages in the injured retina Methods: mRNA profiles of microglia (Cont) and infiltrating macrophages (GFP) at day 7 post-injry, quadruplicated, were generated by deep-sequencing using Illumina HiSeq 2500 sequencer. Results: RNA-seq tags were mapped to the mouse mm9 reference genome assembly using Tophat2 ver. 2.0.8b, with FPKM values caluculated with Cufflinks ver. 2.1.1 with the default option.Comparison of gene expression between microglia and infiltrating macrophages identified genes specific to each subset. Conclusions: Our study provides the detailed analysis of transcriptomes in microglia and infiltrating macrophages in the injured retina