Cell‐mediated immunity to neural antigens in idiopathic polyneuritis and myeloradiculitis

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Abstract
Patients with peripheral nervous system disorders were tested for the presence of cellular hypersensitivity to peripheral and central nervous system antigens by means of the in vitro lymphocyte transformation technique. Lymphocytes sensitized to the neuritogenic peripheral nervous system P1L basic protein were found in pure polyradiculitis of the Guillain-Barré syndrome type. Lymphocytes from patients with myeloradiculitis underwent transformation by peripheral P2 basic protein and by central nervous system basic encephalitogenic protein. In cases of chronic relapsing polyneuropathy response was shown to the central nervous system basic encephalitogen and to both of the peripheral nerve basic proteins. Lymphocytes from patients with other neurologic conditions showed no response to any of these antigens. These findings suggest that cell mediated immunity to specific basic proteins of the myelin plays a role in the pathogenesis of the above-mentioned demyelinating disorders and may lead to a new approach in their classification and diagnosis.

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