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Rod-derived Cone Viability Factor

ABSTRACT: Rod-derived Cone Viability Factor stimulates aerobic glycolysis through BSG1/GLUT1

INSTRUMENT(S): Bruker Daltonics HCT Series, maXis

ORGANISM(S): Gallus Gallus (chicken)

TISSUE(S): Embryo

SUBMITTER: Francois Delalande

LAB HEAD: Delalande Francois

PROVIDER: PXD001384 | Pride | 2016-06-15

REPOSITORIES: Pride

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			Action	DRS
	F010392.mgf	Mgf
	F010393.mgf	Mgf
	F010394.mgf	Mgf
	F010395.mgf	Mgf
	F010396.mgf	Mgf

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Publications

Rod-derived cone viability factor promotes cone survival by stimulating aerobic glycolysis.

Aït-Ali Najate N Fridlich Ram R Millet-Puel Géraldine G Clérin Emmanuelle E Delalande François F Jaillard Céline C Blond Frédéric F Perrocheau Ludivine L Reichman Sacha S Byrne Leah C LC Olivier-Bandini Anne A Bellalou Jacques J Moyse Emmanuel E Bouillaud Frédéric F Nicol Xavier X Dalkara Deniz D van Dorsselaer Alain A Sahel José-Alain JA Léveillard Thierry T

Cell 20150501 4

Rod-derived cone viability factor (RdCVF) is an inactive thioredoxin secreted by rod photoreceptors that protects cones from degeneration. Because the secondary loss of cones in retinitis pigmentosa (RP) leads to blindness, the administration of RdCVF is a promising therapy for this untreatable neurodegenerative disease. Here, we investigated the mechanism underlying the protective role of RdCVF in RP. We show that RdCVF acts through binding to Basigin-1 (BSG1), a transmembrane protein expressed ...[more]

PMID: 25957687

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Rod-derived Cone Viability Factor 2

Project description:Rod-derived Cone Viability Factor (RdCVF) is a truncated thioredoxin secreted by rod photoreceptors that protects cones. Because the secondary loss of cones in retinitis pigmentosa (RP) is the major visual handicap of this untreatable neurodegenerative disease, the administration of RdCVF is thought to be a promising therapy for RP. We show that RdCVF is acting by binding to Basigin-1 (BSG1) at the surface of cones. BSG1 is an alternative splice product of the BSG gene, a transmembrane protein with an extra immunoglobin domain expressed specifically in the retina. BSG1 binds to the glucose transporter GLUT1. RdCVF increases glucose entry into cones. We found that the increase in glucose is used by cones to induce cell survival by stimulating aerobic glycolysis. A disease associated missense mutation of RdCVF results in its inability to bind to BSG1, to stimulate glucose uptake and to prevent secondary cone death of a model of RP.

2016-06-15 | PXD001715 | Pride

Susceptibility to photo-oxidative damage of mice lacking the Rod derived Cone Viability Factor gene Nxnl1

Project description:Rod-derived Cone Viability Factor is a trophic factor of the thioredoxins family that promotes the survival of cone photoreceptors. It is encoded by the nucleoredoxin-like gene 1 Nxnl1 which also encodes by alternative splicing for RdCVFL, for a thioredoxin enzyme that interacts with the protein TAU. The role of thioredoxins in the defense mechanism against oxidation led us to examine the retinal phenotype of the Nxnl1-/- mouse after photo-oxidative stress. In total 16 samples were analyzed, they represent two different genotypes (wt/wt, ko/ko) both on pure BALB/c background and two doses of light that were tested in triplicate each.

2014-02-12 | E-GEOD-54886 | biostudies-arrayexpress

Susceptibility to photo-oxidative damage of mice lacking the Rod derived Cone Viability Factor gene Nxnl1

2014-02-12 | GSE54886 | GEO

Transcriptional profiles of cone cells, rod cells, and pineal photoreceptor cells in zebrafish

Project description:For isolation of rod, cone, and pineal photoreceptor cells, we used the transgenic zebrafish lines, Tg(rho:egfp)ja2Tg, Tg(gnat2:egfp)ja23Tg, and Tg(exorh:EGFP)ja1Tg, which express EGFP in rods, all cone subtypes, and pineal rod cells, respectively. Retinas were dissected from dark-adapted adult fish under dim red light. The isolated retinas were digested with trypsin in Ca2+-free Ringer’s solution. The reaction was terminated by adding soybean trypsin inhibitor and fetal bovine serum. The dissociated EGFP-positive cells were isolated with a fluorescence activating cell sorter (FACSAria, BD Biosciences) by the following three parameters: forward scatter, side scatter and green fluorescence. Goal was to determine differentially expressed genes among three types of photoreceptor cells.

2021-10-06 | GSE168749 | GEO

Identification of rod- and cone-specific expression signatures to identify candidate genes for retinal disease

Project description:Exon array analysis was performed using retinae from three transgenic mouse models, coneless (cl), rodless (rd/rd) and rodless/coneless (rd/rd cl) compared to wildtype (non-rd) allowing gene expression in the rod and cone photoreceptors to be examined.

2015-11-01 | E-MTAB-3976 | biostudies-arrayexpress

Transcriptome dynamics of developing photoreceptors in 3-D retina cultures recapitulates temporal sequence of human cone and rod differentiation revealing cell surface markers and gene networks

2015-08-03 | GSE67645 | GEO

Preservation of cone photoreceptors after a rapid yet transient degeneration and remodeling in cone-only Nrl-/- mouse retina

Project description:Cone photoreceptors are the primary initiator of visual transduction in the human retina. Dysfunction or death of rod photoreceptors precedes cone loss in many retinal and macular degenerative diseases, suggesting a rod-dependent trophic support for cone survival. Rod differentiation and homeostasis are dependent on the basic motif leucine zipper transcription factor NRL. The loss of Nrl in mice (Nrl-/-) results in a retina with predominantly S-opsin containing cones that exhibit molecular and functional characteristics of WT cones. Here we report that Nrl-/- retina undergoes a rapid but transient period of degeneration in early adulthood, with cone apoptosis, retinal detachment, alterations in retinal vessel structure, and activation and translocation of retinal microglia. However, cone degeneration stabilizes by four months of age, resulting in a thinned but intact outer nuclear layer with residual cones expressing S- and M-opsins and a preserved photopic ERG. At this stage, microglia translocate back to the inner retina and reacquire a quiescent morphology. Gene profiling analysis during the period of transient degeneration reveals misregulation of stress response and inflammation genes, implying their involvement in cone death. The Nrl-/- retina illustrates the long-term viability of cones in the absence of rods and may serve as a model for elucidating mechanisms of cone homeostasis and degeneration that would be relevant to understanding diseases of the cone-dominant human macula. Targets were generated from a pair of retinas (one Nrl-/- mouse) per biological replicate. Four biological replicates were generated for each of the five aging timepoints (1, 2, 4, 6, and 10 months post natal).

2011-11-15 | E-GEOD-33674 | biostudies-arrayexpress

Mouse retina single-cell RNA-seq of WT and two Nr2e3 mutant models to explore the role of Nr2e3 in cone and rod photoreceptor differentiation

Project description:Single-cell RNA-seq of mouse WT retinas and two Nr2e3 mutant retinas, ∆27 and ∆E8 (containing a 27 nucleotide in-frame deletion or a complete exon 8 deletion, respectively). The ∆27 retinas were used as a model for enhanced S-cone syndrome phenotype in humans, while the ∆E8 retinas show a progressive retinal degeneration similar to human retinitis pigmentosa patients. This data was used to explore the role of Nr2e3 in cone and rod photoreceptor differentiation.

2024-05-18 | E-MTAB-12183 | biostudies-arrayexpress

Preservation of cone photoreceptors after a rapid yet transient degeneration and remodeling in cone-only Nrl-/- mouse retina

2011-11-15 | GSE33674 | GEO

Transcriptome dynamics of developing photoreceptors in 3-D retina cultures recapitulates temporal sequence of human cone and rod differentiation revealing cell surface markers and gene networks

Project description:To define molecular mechanisms underlying rod and cone differentiation, we generated H9 human embryonic stem cell line carrying a GFP reporter that is controlled by the promoter of cone-rod homeobox (CRX) gene, the first known marker of post-mitotic photoreceptor precursors. CRXp-GFP reporter in H9 line replicates endogenous CRX expression when induced to form self-organizing 3-D retina-like tissue. We define temporal transcriptome dynamics of developing photoreceptors during the establishment of cone and rod cell fate. Our studies provide an essential framework for delineating molecules and cellular pathways that guide human photoreceptor development and should assist in chemical screening and cell-based therapies of retinal degeneration. Undifferentiated CRXp-GFP HP hES cells and 3D-neural retina were collected at days 37, 47, 67 and 90 and dissociated into single cells. Cells were sorted at 4°C and by FACSAria (Becton Dickinson). GFP+ and GFP- cells were separately collected. Total RNA was extracted by RNA purification kit (Norgen Biotek) and analyzed by 2100 Bioanalyzer (Agilent Technologies Genomics). High quality of total RNA (RIN: 7.7-9.2) was subjected to libraries construction using 40-60 ng of total RNA as input. Libraries were constructed using a stranded modification of the Illumina TruSeq mRNA (Brooks, et al. Meth Mol Biol 2012). Each library was single-end sequenced in an independent lane of a GAIIx at a length of 76 bases. Fastq files were generated from reads passing chastity filter.

2015-08-03 | E-GEOD-67645 | biostudies-arrayexpress

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