Restoring the ON Switch in Blind Retinas: Opto-mGluR6, a Next-Generation, Cell-Tailored Optogenetic Tool.

Photoreceptor degeneration is one of the most prevalent causes of blindness. Despite photoreceptor loss, the inner retina and central visual pathways remain intact over an extended time period, which has led to creative optogenetic approaches to restore light sensitivity in the surviving inner retin...

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Main Authors: Michiel van Wyk, Justyna Pielecka-Fortuna, Siegrid Löwel, Sonja Kleinlogel
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-05-01
Series:PLoS Biology
Online Access:http://europepmc.org/articles/PMC4423780?pdf=render
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author Michiel van Wyk
Justyna Pielecka-Fortuna
Siegrid Löwel
Sonja Kleinlogel
author_facet Michiel van Wyk
Justyna Pielecka-Fortuna
Siegrid Löwel
Sonja Kleinlogel
author_sort Michiel van Wyk
collection DOAJ
description Photoreceptor degeneration is one of the most prevalent causes of blindness. Despite photoreceptor loss, the inner retina and central visual pathways remain intact over an extended time period, which has led to creative optogenetic approaches to restore light sensitivity in the surviving inner retina. The major drawbacks of all optogenetic tools recently developed and tested in mouse models are their low light sensitivity and lack of physiological compatibility. Here we introduce a next-generation optogenetic tool, Opto-mGluR6, designed for retinal ON-bipolar cells, which overcomes these limitations. We show that Opto-mGluR6, a chimeric protein consisting of the intracellular domains of the ON-bipolar cell-specific metabotropic glutamate receptor mGluR6 and the light-sensing domains of melanopsin, reliably recovers vision at the retinal, cortical, and behavioral levels under moderate daylight illumination.
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spelling doaj.art-8eee7d7acf1c4f8fa69144338d610c902022-12-21T19:21:43ZengPublic Library of Science (PLoS)PLoS Biology1544-91731545-78852015-05-01135e100214310.1371/journal.pbio.1002143Restoring the ON Switch in Blind Retinas: Opto-mGluR6, a Next-Generation, Cell-Tailored Optogenetic Tool.Michiel van WykJustyna Pielecka-FortunaSiegrid LöwelSonja KleinlogelPhotoreceptor degeneration is one of the most prevalent causes of blindness. Despite photoreceptor loss, the inner retina and central visual pathways remain intact over an extended time period, which has led to creative optogenetic approaches to restore light sensitivity in the surviving inner retina. The major drawbacks of all optogenetic tools recently developed and tested in mouse models are their low light sensitivity and lack of physiological compatibility. Here we introduce a next-generation optogenetic tool, Opto-mGluR6, designed for retinal ON-bipolar cells, which overcomes these limitations. We show that Opto-mGluR6, a chimeric protein consisting of the intracellular domains of the ON-bipolar cell-specific metabotropic glutamate receptor mGluR6 and the light-sensing domains of melanopsin, reliably recovers vision at the retinal, cortical, and behavioral levels under moderate daylight illumination.http://europepmc.org/articles/PMC4423780?pdf=render
spellingShingle Michiel van Wyk
Justyna Pielecka-Fortuna
Siegrid Löwel
Sonja Kleinlogel
Restoring the ON Switch in Blind Retinas: Opto-mGluR6, a Next-Generation, Cell-Tailored Optogenetic Tool.
PLoS Biology
title Restoring the ON Switch in Blind Retinas: Opto-mGluR6, a Next-Generation, Cell-Tailored Optogenetic Tool.
title_full Restoring the ON Switch in Blind Retinas: Opto-mGluR6, a Next-Generation, Cell-Tailored Optogenetic Tool.
title_fullStr Restoring the ON Switch in Blind Retinas: Opto-mGluR6, a Next-Generation, Cell-Tailored Optogenetic Tool.
title_full_unstemmed Restoring the ON Switch in Blind Retinas: Opto-mGluR6, a Next-Generation, Cell-Tailored Optogenetic Tool.
title_short Restoring the ON Switch in Blind Retinas: Opto-mGluR6, a Next-Generation, Cell-Tailored Optogenetic Tool.
title_sort restoring the on switch in blind retinas opto mglur6 a next generation cell tailored optogenetic tool
url http://europepmc.org/articles/PMC4423780?pdf=render
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