Wednesday, July 3, 2013

Ataxie de Friedreich, La recherche progresse (English translation)

Translation courtesy of John Spencer. Thanks to Alex Bernard for authorizing publish the translation of the full text.

"Finding money for research is always a problem, "says researcher, Dr. Tremblay

Friedreich's ataxia is caused by a mutation in a related to the production of a protein called frataxin gene. Patients with this disease produce less frataxin which causes cell death. Normally, cells that die are replaced, except in the brain and heart. The disease therefore causes neural and cardiac symptoms in those who are affected.

The solution is to increase frataxin in patients and to get there, we evaluate different avenues, either by injecting frataxin in patients or by different techniques, including gene therapy by stimulating the production of the protein.

Dr. Tremblay came to interesting results, thanks to "Tale" proteins he got increases of 2 to 3 times the expression of frataxin with this approach. Patent applications have been filed on this technology.

"The great difficulty in the development of therapy is that it may be necessary to go into clinical trials. This can cost $ 1 to 2 million dollars for a single trial on a dozen patients. In this type of research, which we are always limited by budgets," says Dr. Tremblay.

When he does tests on animals, it can produce its own virus that costs a few thousand dollars. Conversely, when it is tested on humans should viruses highest quality are produced by only a handful of laboratories around the world.

Funding is difficult to find because the pharmaceutical companies have less interest in treating of orphan diseases and as a result, government agencies fund some research.

"I created an international consortium to promote gene therapy. One of our primary goals is to lobby governments to increase the amount of money spent on research for gene therapy because perhaps it could help develop treatments for many orphan diseases.

The researcher points out that the development of gene therapy is not limited only to orphan diseases, but it can contribute to treatments for many other afflictions, including cancer.

This therapy involves injecting a virus whose center core was replaced by part of genes. If we develop a virus to treat Friedreich's ataxia, it can also be used to treat diseases of vision, some hearing or lung disorders.

"I am very optimistic that we can develop treatments for Friedreich's ataxia. I hope to go to trial within 2 to 3 years, "expressed Dr. Tremblay. It still needs more work on his animal models to obtain the necessary approvals from Health Canada before he can move to clinical trials. But even with these authorizations, the research is dependent on the ability of Dr. Tremblay to find money.

Source:

Ataxie de Friedreich, La recherche progresse . Journal de Chambly, Par Alex Bernard, Mardi 2 juillet 2013 16:20:02 HAE

New treatments for mitochondrial disease—no time to drop our standards

New treatments for mitochondrial disease—no time to drop our standards. Gerald Pfeffer, Rita Horvath, Thomas Klopstock, Vamsi K. Mootha, Anu Suomalainen, Saskia Koene, Michio Hirano, Massimo Zeviani, Laurence A. Bindoff, Patrick Yu-Wai-Man, Michael Hanna, Valerio Carelli, Robert McFarland, Kari Majamaa, Douglas M. Turnbull, Jan Smeitink & Patrick F. Chinnery; Nature Reviews Neurology, 2013/07/02 advance online publication, doi:10.1038/nrneurol.2013.129

Ataxie de Friedreich, La recherche progresse

Ataxie de Friedreich, La recherche progresse . Journal de Chambly, Par Alex Bernard, Mardi 2 juillet 2013 16:20:02 HAE

«Je suis très optimiste qu’on puisse développer des traitements pour l’ataxie de Friedreich. J’espère pouvoir aller en essai clinique d’ici 2 à 3 ans», exprime Dr Tremblay.

Gene Therapy Cures a Severe Pediatric Neurodegenerative Disease in Animal Models

Gene Therapy Cures a Severe Pediatric Neurodegenerative Disease in Animal Models. Universitat Autònoma de Barcelona (2013, July 2). ScienceDaily. Retrieved July 3, 2013, from http://www.sciencedaily.com­ /releases/2013/07/130702100344.htm

July 2, 2013 — A single session of a gene therapy developed by the Universitat Autònoma de Barcelona (UAB) cures Sanfilippo Syndrome A in animal models. This syndrome is a neurodegenerative disease that affects between 1 and 9 out of every 100,000 children, and causes the death of the child on reaching adolescence.


Whole body correction of mucopolysaccharidosis IIIA by intracerebrospinal fluid gene therapy. Virginia Haurigot, Sara Marcó, Albert Ribera, Miguel Garcia, Albert Ruzo, Pilar Villacampa, Eduard Ayuso, Sònia Añor, Anna Andaluz, Mercedes Pineda, Gemma García-Fructuoso, Maria Molas, Luca Maggioni, Sergio Muñoz, Sandra Motas, Jesús Ruberte, Federico Mingozzi, Martí Pumarola, Fatima Bosch
J Clin Invest. 2013; doi:10.1172/JCI66778

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