Abstract
An epitope on peripheral nerve myelin was detècted by the use of a mouse monoclonal antibody directed against the 38 kDa subunit of herpes simplex virus (HSV) type 1 ribonucleotide reductase. Immunohistochemistry showed reactivity solely in PNS myelin. In nerve roots there was a sharp border in transitional zones to the negative CNS myelin. The immunoreactivity was found in rat, guinea pig, bovine and human peripheral nerves. Western blot analysis of peripheral nerve myelin as well as purified P 0 revealed a distinctly stained band corresponding to a molecular weight of approximately 29 kDa. The present finding of a shared antigenic determinant between HSV ribonucleotide reductase and peripheral nerve P 0 may be of pathogenetic relevance in virus induced demyelinating diseases in the peripheral nervous system.
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