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Wayne State University School of Medicine researchers, working with colleagues in Canada, have found that one or more substances produced by a type of immune cell in people with multiple sclerosis (MS) may play a role in the disease's progression. The finding could lead to new targeted therapies for MS treatment.

B cells, said Robert Lisak, M.D., professor of neurology at Wayne State and lead author of the study, are a subset of lymphocytes (a type of circulating white blood cell) that mature to become plasma cells and produce immunoglobulins, proteins that serve as antibodies. The B cells appear to have other functions, including helping to regulate other lymphocytes, particularly T cells, and helping maintain normal immune function when healthy.

In patients with MS, the B cells appear to attack the brain and spinal cord, possibly because there are substances produced in the nervous system and the meninges -- the covering of the brain and spinal cord -- that attract them. Once within the meninges or central nervous system, Lisak said, the activated B cells secrete one or more substances that do not seem to be immunoglobulins but that damage oligodendrocytes, the cells that produce a protective substance called myelin.... Read More - http://www.msrc.co.uk/index.cfm/fuseact ... ageid/1100

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