DS04 - Vie, santé et bien-être

Vertebrate opsins for vision restoration – VISIONOPSIN

Submission summary

Our most cherished sense, vision, begins with the process of phototransduction, a process performed by the highly specialized photoreceptor cells of the retina. Seven transmembrane proteins are responsible for light capture and they have evolved into many different forms through evolution. In majority of inherited blinding diseases photoreceptor cells are altered losing the ability to capture light. To re-animate retinas that have lost their endogenous opsins it has been suggested that simple one-component invertebrate opsins can be expressed in these ‘dormant’ photoreceptors. This has lead to elegant proof-of-concept studies in rodents showing that it is possible to restore visual function. However, the major drawback with these microbial opsin systems is their low light sensitivity and difficulty of their expression in higher primates. Here, we propose to use vertebrate opsin systems specifically designed to work in remaining retinal neurons in rod-cone dystrophies. These vertebrate opsins will circumvent the shortcomings associated with one-component microbial opsins, and offer a highly therapeutically relevant solution to blindness, applicable in the clinic.

Project coordination

Deniz DALKARA (Institut de la Vision)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.

Partner

IDV Institut de la Vision
IGSN IGSN

Help of the ANR 264,280 euros
Beginning and duration of the scientific project: - 36 Months

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