The Journal of Experimental Medicine
Janeway's Immunobiology 7th Edition
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The Journal of Experimental Medicine, Vol 122, 1161-1171, Copyright © 1965 by The Rockefeller University Press

ARTICLE

IN VITRO DEMONSTRATION OF CELLULAR SENSITIVITY IN ALLERGIC ENCEPHALOMYELITIS

John R. David M.D.1 and Philip Y. Paterson M.D.1

1 From the Department of Medicine, New York University School of Medicine, New York

Peritoneal cells obtained from animals exhibiting delayed hypersensitivity are inhibited from migrating in vitro by specific sensitizing antigen. This test for the detection of delayed hypersensitivity was applied to the problem of cellular sensitivity in allergic encephalomyelitis (AE). The migration of peritoneal cells obtained from guinea pigs with AE was inhibited specifically by nervous tissue antigens. The specificity of this reaction was further studied. Neonatal rat nervous tissue, which was shown to lack the encephalitogenic antigen, i.e. did not produce AE when injected with complete adjuvant into guinea pigs and rats, did not inhibit the migration of cells from animals with AE. Adult rat nervous tissue, which readily produces AE, and thus contains the encephalitogenic antigen did inhibit the migration of such cells. The finding that cells from animals with AE display hypersensitivity which appears to be directed specifically to the encephalitogenic antigen strongly supports the view that such cells could play an important role in the pathogenesis of this disease.

Submitted on August 17, 1965


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