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B Cell Study May Lead to Treatment Options for Progressive MS

MS Society of Canada and MS Scientific Research Foundation announce $3.6 million grant to understanding B cells for future MS therapies

TORONTO, ONTARIO -- (Marketwired) -- 02/18/14 -- The Multiple Sclerosis Society of Canada and the Multiple Sclerosis Scientific Research Foundation announced a $3.6 million grant to investigate the role of the B cell, a type of white blood cell of the immune system, in contributing to the development and propagation of multiple sclerosis. With collaboration between McGill University, Universite de Montreal and University of Toronto, world-leading MS experts Drs. Amit Bar-Or, Alexandre Prat and Jennifer Gommerman will engage in a unique interdisciplinary approach to identify and explain the role of B cells in MS.

To date, modern scientific understanding has considered MS to be a disease controlled by the T cell, another type of white blood cell. Research has shown that in MS, T cells mistakenly recognize and attack myelin, the protective layer of fat covering nerves in the central nervous system, exposing them to damage. Research in T cells has led to the development of therapies that aim to control or block the effects of harmful T cells.

However, a surprising discovery in emerging studies has revealed that therapies targeting B cells led to dramatic improvements in people living with MS. Moreover, B cells have recently been found in areas of the brain associated with progressive MS, which is a debilitating form of MS that currently has no treatments. These recent studies have led scientists to believe that B cells, which were previously overlooked in MS, are significant contributors to the disease.

"Based on the encouraging clinical trial results of B cell depletion in people with relapsing-remitting MS, the question is no longer whether B cells are important contributors to MS, but how they contribute," said Dr. Amit Bar-Or, clinician and scientist at the Montreal Neurological Institute at McGill University, and one of the study's lead investigators. "Members of our team have recently discovered that different types of human B cells exist. Some B cells promote inflammation, while others are actually able to limit inflammation. This collaborative study will allow us to address important emerging issues relevant to understanding and better treating MS, especially progressive MS."

"This funding provides a unique occasion to pool scientific resources and expertise from three major MS research centres in Canada to study the influence of B cells in the development of MS," said Dr. Alexandre Prat, neurologist and researcher at the Centre hospitalier de l'Universite de Montreal and professor at the Faculty of Medicine of Universite de Montreal. "It is truly an exciting moment for us, and for the MS community in general."

Drs. Bar-Or, Prat and Gommerman will collaborate to uncover fundamental knowledge about how B cells influence the course of MS. This information will point to clues about the cause of MS, while enabling them to explore the potential of B cell-targeted treatments for people living with all forms of MS.

"Our multi-centre team provides a large range of expertise, from clinical experience to extensive knowledge in immunology. Our collaborative research will accomplish our goal to learn more about B cells in MS, so that one day we could develop therapies for progressive forms of the disease," said Dr. Jennifer Gommerman, scientist and associate professor at the Faculty of Medicine of University of Toronto.

"As Canada has the highest rate of MS in the world, Canadian researchers have a special interest in finding new ways to think about the cause of MS and improve therapies for Canadians living with the disease," said Dr. Karen Lee, vice-president of research, MS Society of Canada. "We are excited that this research team is breaking new ground in the field of MS research that will further our knowledge about the complexity of MS. We believe that an end to MS is achievable, and this B cell study will bring us closer to finding the answers we need and ending MS."

"I think that finding the cause and cure for MS involves innovative thinking and ideas as well as working together to ultimately end this disease," said Andrea Butcher-Milne, who was diagnosed with MS in 1997. "It gives me comfort that researchers in our country are doing their best to realize the promise of a brighter future for people with MS."

This study has been selected by the Canadian Institutes of Health Research to be presented at this month's Cafe Scientifique held on February 18 in Toronto. Cafe Scientifique is an interactive series of presentations that allow scientists to share their research advances to the general public. For more details, visit the Cafe Scientifique website.

About multiple sclerosis and the MS Society of Canada

Canada has the highest rate of multiple sclerosis in the world. MS is a chronic, often disabling disease of the central nervous system comprising the brain, spinal cord and optic nerve. It is the most common neurological disease of young adults in Canada. Most people with MS are diagnosed between the ages of 15 and 40, and the unpredictable effects of MS last for the rest of their lives. The MS Society provides services to people with MS and their families and funds research to find the cause and cure for this disease. Please visit mssociety.ca or call 1-800-268-7582 to make a donation or for more information.

About the Multiple Sclerosis Scientific Research Foundation

The Multiple Sclerosis Scientific Research Foundation funds large, innovative, multi-centre collaborative studies that will lead to major advances in the field of multiple sclerosis. A unique Canadian resource, the Foundation's main funding source is the MS Society of Canada.

The Neuro

The Montreal Neurological Institute and Hospital - The Neuro, is a unique academic medical centre dedicated to neuroscience. Founded in 1934 by the renowned Dr. Wilder Penfield, The Neuro is recognized internationally for integrating research, compassionate patient care and advanced training, all key to advances in science and medicine. The Neuro is a research and teaching institute of McGill University and forms the basis for the Neuroscience Mission of the McGill University Health Centre. Neuro researchers are world leaders in cellular and molecular neuroscience, brain imaging, cognitive neuroscience and the study and treatment of epilepsy, multiple sclerosis and neuromuscular disorders. For more information, visit theneuro.com.

About the Centre hospitalier de l'Universite de Montreal

The Centre hospitalier de l'Universite de Montreal (CHUM) first and foremost provides highly specialized healthcare in all medical specialties to a regional and supra-regional adult clientele. It is the main centre for development and knowledge transfer through its integrated activities in healthcare, teaching, research, assessment of technologies and treatment methods, as well as quality, the promotion of health and the patient experience. As of 2016, the CHUM will offer an improved hospital experience in its new downtown Montreal facilities. The CHUM is an active member of the Reseau universitaire integre de sante (RUIS) de l'Universite de Montreal. chumontreal.qc.ca

About the University of Toronto Faculty of Medicine

The University of Toronto Faculty of Medicine is at the heart of one of the great biomedical research, education and clinical care networks in the world. With nine fully affiliated hospitals and research institutes and 18 community-affiliated hospitals and clinical care sites, the Faculty of Medicine is a research powerhouse that offers unparalleled opportunities for its 6,800 faculty and 8,000-plus students at all levels. Nearly half of Ontario's medical doctors and fully 25 per cent of all health and biomedical PhDs in Canada were trained by the Faculty of Medicine, which consistently ranks among the top medical schools worldwide.

Contacts:
Lindsay Gulin
MS Society of Canada
416-922-6600 x3245
[email protected]

Isabelle Lavigne
Centre hospitalier de l'Universite de Montreal (CHUM)
514-890-8000 x15380
[email protected]

Anita Kar
Montreal Neurological Institute and Hospital
(The Neuro)
514-398-3376
[email protected]

Suniya Kukaswadia
Faculty of Medicine, University of Toronto
416-978-7752
[email protected]

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