Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Protein injection points to muscular dystrophy treatment

27.11.2012
Scientists have discovered that injecting a novel human protein into muscle affected by Duchenne muscular dystrophy significantly increases its size and strength, findings that could lead to a therapy akin to the use of insulin by diabetics.

These results were published today in the Proceedings of the National Academy of Sciences by Dr. Julia von Maltzahn and Dr. Michael Rudnicki, the Ottawa scientist who discovered muscle stem cells in adults.

"This is an unprecedented and dramatic restoration in muscle strength," says Dr. Rudnicki, a senior scientist and director for the Regenerative Medicine Program and Sprott Centre for Stem Cell Research at the Ottawa Hospital Research Institute. He is also a Canada Research Chair in Molecular Genetics and professor in the Faculty of Medicine at the University of Ottawa.

"We know from our previous work that this protein, called Wnt7a, promotes the growth and repair of healthy muscle tissue. In this study we show the same types of improvement in a mouse model of Duchenne muscular dystrophy. We found that Wnt7a injections increased muscle strength almost two-fold, to nearly normal levels. We also found that the size of the muscle fibre increased and there was less muscle damage, compared to mice not given Wnt7a."

Duchenne muscular dystrophy is a genetic disorder that affects one of every 3,500 newborn males. In Canada, all types of muscular dystrophy affect more than 50,000 people. The disease often progresses to a state where the muscles are so depleted that the person dies due to an inability to breath. For people with Duchenne muscular dystrophy, this usually happens in their 20s or 30s.

"This is also exciting because we think it's a therapeutic approach that could apply to other muscle-wasting diseases," says Dr. Rudnicki.

Dr. Rudnicki's lab is a world leader in research on muscle stem cells. They have contributed significantly to our understanding of how these cells work at the molecular level. This basic research, which takes place in OHRI's multidisciplinary environment of collaboration with clinicians, led to the identification of Wnt7a as a promising candidate to help people with this muscle wasting disease.

Biotechnology partner, Fate Therapeutics is currently developing Wnt7a-based therapeutic candidates for treatment of muscular dystrophy and atrophy. Preclinical assessments are ongoing and the company plans to initiate clinical trials in the near future.

The full article, "Wnt7a treatment ameliorates muscular dystrophy," is available online ahead of print through the Proceedings of the National Academy of Sciences site.

This research was supported by the Muscular Dystrophy Association, the Ontario Ministry of Economic Development and Innovation, the Canadian Institutes of Health Research, the National Institutes of Health, the Howard Hughes Medical Institute, Fate Therapeutics and the Canada Research Chair Program. All research at OHRI is also supported by The Ottawa Hospital Foundation.

Media Contact
Paddy Moore
Manager, Communications and Public Relations,
Ottawa Hospital Research Institute
613-798-5555 ext. 73687
613-794-6912 (cell)
padmoore@ohri.ca
Néomie Duval
Media Relations Officer
University of Ottawa
613-562-5800 x2981
613-863-7221 (cell)
neomie.duval@uOttawa.ca
About the Ottawa Hospital Research Institute (OHRI)

The Ottawa Hospital Research Institute (OHRI) is the research arm of The Ottawa Hospital and is an affiliated institute of the University of Ottawa, closely associated with the university's Faculties of Medicine and Health Sciences. OHRI includes more than 1,700 scientists, clinical investigators, graduate students, postdoctoral fellows and staff conducting research to improve the understanding, prevention, diagnosis and treatment of human disease. Research at OHRI is supported by The Ottawa Hospital Foundation. www.ohri.ca
About the University of Ottawa

The University of Ottawa is committed to research excellence and encourages an interdisciplinary approach to knowledge creation, which attracts the best academic talent from across Canada and around the world. It is an important stakeholder in the National Capital Region's economic development.

Paddy Moore | EurekAlert!
Further information:
http://www.ohri.ca

More articles from Health and Medicine:

nachricht Oxygen can wake up dormant bacteria for antibiotic attacks
08.12.2016 | Penn State

nachricht NTU scientists build new ultrasound device using 3-D printing technology
07.12.2016 | Nanyang Technological University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Closing the carbon loop

08.12.2016 | Life Sciences

Applicability of dynamic facilitation theory to binary hard disk systems

08.12.2016 | Physics and Astronomy

Scientists track chemical and structural evolution of catalytic nanoparticles in 3-D

08.12.2016 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>