Cited by 182Retinal Development and DisordersPhotoreceptor and optogenetics researchNeuroscience and Neural Engineering

LiGluR restores visual responses in rodent models of inherited blindness

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Caporale, Natalia, Kolstad, Kathleen D, Lee, Trevor, Tochitsky, Ivan, Dalkara, Deniz, Trauner, Dirk, Kramer, Richard, Dan, Yang +2 more·2011·Molecular Therapy

Abstract

Inherited retinal degeneration results from many different mutations in either photoreceptor-specific or nonphotoreceptor-specific genes. However, nearly all mutations lead to a common blinding phenotype that initiates with rod cell death, followed by loss of cones. In most retinal degenerations, other retinal neuron cell types survive for long periods after blindness from photoreceptor loss. One strategy to restore light responsiveness to a retina rendered blind by photoreceptor degeneration is to express light-regulated ion channels or transporters in surviving retinal neurons. Recent experiments in rodents have restored light-sensitivity by expressing melanopsin or microbial opsins either broadly throughout the retina or selectively in the inner segments of surviving cones or in bipolar cells. Here, we present an approach whereby a genetically and chemically engineered light-gated ionotropic glutamate receptor (LiGluR) is expressed selectively in retinal ganglion cells (RGCs), the longest-surviving cells in retinal blinding diseases. When expressed in the RGCs of a well-established model of retinal degeneration, the rd1 mouse, LiGluR restores light sensitivity to the RGCs, reinstates light responsiveness to the primary visual cortex, and restores both the pupillary reflex and a natural light-avoidance behavior.

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Crossref · 10.1038/mt.2011.103

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  • Pre-clinical optogenetic trials in mouse models of retinitis pigmentosa have restored basic visual function in blind animals, providing proof of principle.

    “Pre-clinical trials of optogenic therapies in murine models of retinitis pigmentosa have provided proof-of-principle in restoring basic visual function to blind animals, and human clinical trials are currently underway.”

    From Correcting visual loss by genetics and prosthetics (2020) · cites this paper as Caporale 2011

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Authors
Caporale, N., Kolstad, K. D., Lee, T., Tochitsky, I., Dalkara, D., Trauner, D., Kramer, R., Dan, Y., Isacoff, E. Y., & Flannery, J. G.
Affiliations
  • University of California, Berkeley (US)
  • Ludwig-Maximilians-Universität München (DE)
  • Howard Hughes Medical Institute (US)
  • Lawrence Berkeley National Laboratory (US)
Corresponding author
Flannery, John G
Venue
Molecular Therapy
Publisher
Elsevier BV
Published
2011-07
Volume
19
Issue
7
Pages
1212-1219
ISSN
1525-0016 (ISSN-L)
OpenAlex
W2017787995
Cited by
182
References
46
Citations by year
2026: 6 · 2025: 7 · 2023: 6 · 2022: 14 · 2021: 5 · 2020: 9 · 2019: 10 · 2018: 12 · 2017: 19 · 2016: 9 · 2015: 24 · 2014: 19 · 2013: 22 · 2012: 14
FWCI
7.91
Type
journal article
Language
en
Open access
Locations
  • Molecular Therapy (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Eye Institute (PN2EY018241, R01EY014375)
  • National Institute of General Medical Sciences (T32GM066698, T32GM007232)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Photoreceptor and optogenetics research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
Keywords
inherited retinal degeneration, retinal ganglion cells, rd1 mouse, photoreceptor degeneration, visual cortex responses, pupillary reflex, retinal prosthesis, gene therapy
MeSH terms
Dependovirus, Animals, Blindness, Electroretinography, Light, Mice, Inbred C57BL, Retinal Ganglion Cells, Visual Cortex, Receptors, Glutamate, Mice

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