Dr. Cecile Delettre | Neuroscience Institute of Montpellier, France

Dr. Cecile Delettre

Neuroscience Institute of Montpellier, France

Recently we have identified a family of molecules with the capacity to stimulate significantly the growth of retinal ganglion cells in vitro in a model of optic atrophy. We developed a zebrafish model with an optic atrophy and we have treated these fishes with one of these molecule. We used increasing doses of molecules to measure the toxicity and determine the most effective dose to protect the optic nerve. We have determined the dose with the best effect and confirmed that treatment with this molecule can prevent optic nerve developmental delay in vivo in our model of optic neuropathy. We are studding the mechanism of action of this molecule and using it in several model of Wolfram syndrome We look forward to a clear indication of the possibility of using this molecule in the future development of a treatment for Wolfram syndrome.

Gene therapy project using WFS1 is also important for us. We have synthetized a novel AAV2/9-WFS1 vector to treat all affected tissues in a previously established mouse model of Wolfram syndrome. After injection of the vector in young mice, we have checked that the vector could transduce all affected tissues including, eye, ear, brain and pancreas. We are now evaluating the efficacy of this gene transfer on visual and auditory function of our mouse model.