From the MS Trust website:
11 June 2010 - R&D Magazine
A virus infection can incite the body to attack its own nerve tissue by activating unusual, disease-fighting cells with receptors for both viral and nerve proteins.
The dual-receptor observation suggests a way brain and spinal cord nerve damage might be triggered in susceptible young adults afflicted with multiple sclerosis (MS).
University of Washington Department of Immunology scientists Qingyong 'John' Ji, Antoine Perchellet, and Joan M Goverman conducted the study, which was published June 6 in Nature Immunology.