Abstract
THE identification of key antigens in human autoimmune diseases is a crucial step towards the development of specific intervention. The autoantigen(s) relevant to multiple sclerosis (MS) probably reside in myelin of the central nervous system, the target of the disease1. Here we examine proliferative responses of human peripheral blood T cells to the complete collection of myelin proteins fractionated by reversed-phase high-performance liquid chro-matography. Myelin isolated from MS-affected brain contained a single protein fraction to which T cells from MS patients and from healthy controls showed dominant responses. This highly immuno-genic protein was identified as αB-crystallin, a small heat-shock protein. Immunohistochemical examination of MS lesions revealed the presence of oligodendrocytes and astrocytes with raised αB-crystallin expression, which were not found in unaffected myelin. Our findings indicate that αB-crystallin serves as immunodominant myelin antigen to human T cells when expressed at the elevated levels found in active MS lesions.
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van Noort, J., van Sechel, A., Bajramovic, J. et al. The small heat-shock protein αB-crystallin as candidate autoantigen in multiple sclerosis. Nature 375, 798–801 (1995). https://doi.org/10.1038/375798a0
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DOI: https://doi.org/10.1038/375798a0
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