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Related Experiment Video

Updated: May 25, 2026

Ex Vivo Optogenetic Interrogation of Long-Range Synaptic Transmission and Plasticity from Medial Prefrontal Cortex to Lateral Entorhinal Cortex
11:31

Ex Vivo Optogenetic Interrogation of Long-Range Synaptic Transmission and Plasticity from Medial Prefrontal Cortex to Lateral Entorhinal Cortex

Published on: February 25, 2022

Towards optogenetic sensory replacement.

M Mehdi Doroudchi1, Kenneth P Greenberg, Anthony N Zorzos

  • 1Eos Neuroscience, Inc, Los Angeles, California, USA.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|January 19, 2012
PubMed
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Researchers used optogenetics with channelrhodopsin-2 (ChR2) to restore vision in blind mice. This gene therapy approach offers potential for precise neural prosthetics and sensory replacement by using light to control genetically modified neurons.

Area of Science:

  • Neuroscience
  • Optogenetics
  • Gene Therapy

Background:

  • Genetically-encoded light-sensitive reagents like channelrhodopsin-2 (ChR2) can control neuron activity.
  • Gene therapy offers a potential delivery method for these reagents.
  • Restoring function in photoreceptor-deprived retinas is a key challenge in treating blindness.

Purpose of the Study:

  • To investigate the use of ChR2 for vision restoration in a mouse model of blindness.
  • To explore the potential of light-activated neural prosthetics for sensory replacement.

Main Methods:

  • Expression of ChR2 in specific neuron types within the retina.
  • Gene therapy techniques for delivering ChR2 genes.
  • Assessment of functional vision restoration in a mouse model.

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Related Experiment Videos

Last Updated: May 25, 2026

Ex Vivo Optogenetic Interrogation of Long-Range Synaptic Transmission and Plasticity from Medial Prefrontal Cortex to Lateral Entorhinal Cortex
11:31

Ex Vivo Optogenetic Interrogation of Long-Range Synaptic Transmission and Plasticity from Medial Prefrontal Cortex to Lateral Entorhinal Cortex

Published on: February 25, 2022

Optogenetic Stimulation of the Auditory Nerve
10:53

Optogenetic Stimulation of the Auditory Nerve

Published on: October 8, 2014

In vivo Optogenetic Stimulation of the Rodent Central Nervous System
09:37

In vivo Optogenetic Stimulation of the Rodent Central Nervous System

Published on: January 15, 2015

Main Results:

  • ChR2 expression enabled light sensitivity in the photoreceptor-deprived retina.
  • Restoration of functional vision was achieved in a mouse model of blindness.
  • Development of light source arrays for patterned sensory information delivery.

Conclusions:

  • Optogenetic tools like ChR2 hold promise for treating blindness and other neurological conditions.
  • Gene therapy combined with optogenetics can create effective neural prosthetics.
  • Light-based information delivery systems could revolutionize sensory replacement therapies.