ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2022
Glucose uptake by GLUT1 in photoreceptors is essential for outer segment renewal and rod photoreceptor survival.
Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed, 32 citations in OpenAlex.
- Biallelic Pathogenic Variants in PYGM Impair Retinal Glycogenolysis Causing a Range of Phenotypes.Investigative ophthalmology & visual science · 2026Article
- Photoreceptor Vulnerability to Ferroptosis: Membrane Phospholipid Peroxidation, Mitochondrial Homeostasis, and RPE-Photoreceptor Coupling.Current issues in molecular biology · 2026Review
- Explaining Retinal Susceptibility to Diabetes Through Photoreceptor Biology.International journal of molecular sciences · 2026Review
- Direct targeting of GLUT1 in cancer: A decade of inhibitor discovery and medicinal chemistry insights.Medicinal chemistry research : an international journal for rapid communications on design and mechanisms of action of biologically active agents · 2026Review
- Selective deletion ofiScience · 2026Article
- Metabolic dysfunction promoted by mitochondrial DNA mutation burden drives retinal degeneration.bioRxiv : the preprint server for biology · 2025Article
- A Novel, Long-Acting, Small Molecule PKM2 Activator and Its Potential Broad Application Against Photoreceptor Degeneration.Translational vision science & technology · 2025Article
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- A pathway to sight.eLife · 2025Article
- Dissecting the biological complexity of age-related macular degeneration: Is it one disease, multiple separate diseases, or a spectrum?Experimental eye research · 2025Review
- Oxidative Stress, Inflammation and Altered Glucose Metabolism Contribute to the Retinal Phenotype in the Choroideremia Zebrafish.Antioxidants (Basel, Switzerland) · 2024Article
- Metabolic Phenotyping of Healthy and Diseased Human RPE Cells.Investigative ophthalmology & visual science · 2024Article
- Age-related retinal degeneration resulting from the deletion of Shp2 tyrosine phosphatase in photoreceptor neurons.Cell death & disease · 2024Article
- The Role of Reactive Oxygen Species in Age-Related Macular Degeneration: A Comprehensive Review of Antioxidant Therapies.Biomedicines · 2024Review
- Article
- Article
- Metabolic transcriptomics dictate responses of cone photoreceptors to retinitis pigmentosa.Cell reports · 2023Article
- Quantitative Proteomics Identifies Novel Nrf2-Mediated Adaptative Signaling Pathways in Skeletal Muscle Following Exercise Training.Antioxidants (Basel, Switzerland) · 2023Article
- Diagnosis, Mechanisms, and Differentiation of Inflammatory Diseases of the Outer Retina: Photoreceptoritis versus Choriocapillaritis; A Multimodal Imaging Perspective.Diagnostics (Basel, Switzerland) · 2022Article
- Glucose uptake by GLUT1 in photoreceptors is essential for outer segment renewal and rod photoreceptor survival.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2022Article
Corrections and comments
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Authors and funding
13 authors at 4 institutions in 1 country.
Funding
Abstract
Photoreceptors consume glucose supplied by the choriocapillaris to support phototransduction and outer segment (OS) renewal. Reduced glucose supply underlies photoreceptor cell death in inherited retinal degeneration and age-related retinal disease. We have previously shown that restricting glucose transport into the outer retina by conditional deletion of Slc2a1 encoding GLUT1 resulted in photoreceptor loss and impaired OS renewal. However, retinal neurons, glia, and the retinal pigment epithelium play specialized, synergistic roles in metabolite supply and exchange, and the cell-specific map of glucose uptake and utilization in the retina is incomplete. In these studies, we conditionally deleted Slc2a1 in a pan-retinal or rod-specific manner to better understand how glucose is utilized in the retina. Using non-invasive ocular imaging, electroretinography, and histochemical and biochemical analyses we show that genetic deletion of Slc2a1 from retinal neurons and Müller glia results in reduced OS growth and progressive rod but not cone photoreceptor cell death. Rhodopsin levels were severely decreased even at postnatal day 20 when OS length was relatively normal. Arrestin levels were not changed suggesting that glucose uptake is required to synthesize membrane glycoproteins. Rod-specific deletion of Slc2a1 resulted in similar changes in OS length and rod photoreceptor cell death. These studies demonstrate that glucose is an essential carbon source for rod photoreceptor cell OS maintenance and viability.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.