Myasthenia induced by monoclonal anti-acetylcholine receptor antibodies

Clinical and electrophysiological aspects

S. A. Burres, J. W. Crayton, C. M. Gomez, David P Richman

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

To investigate individual components of the humoral immune response directed against the acetylcholine receptor in experimental myasthenia, we injected monoclonal antireceptor antibody into normal rats. These antibodies were produced by cloned hybridoma lines formed by fusion of immune spleen cells with the myeloma cell line P3-X63-Ag8. Antibodies from two of seven clones induced acute experimental myasthenia, manifested by clinical weakness, decremental electromyographic response to repetitive nerve stimulation, and diminished mean amplitudes of miniature end-plate potentials (mepps): 0.55 ± 0.02 mv (SEM) versus 0.71 ± 0.02 mv for controls (p < 0.001). In clinically affected animals, mepp amplitudes from the diaphragm correlated with decremental responses in the gastrocnemius muscle (r = -0.91, p < 0.01). The results suggest that binding of a single antibody species to a single determinant on the acetylcholine receptor molecule is sufficient to induce acute experimental myasthenia gravis.

Original languageEnglish (US)
Pages (from-to)563-568
Number of pages6
JournalAnnals of Neurology
Volume9
Issue number6
StatePublished - 1981
Externally publishedYes

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Autoimmune Experimental Myasthenia Gravis
Cholinergic Receptors
Antibodies
Miniature Postsynaptic Potentials
Hybridomas
Humoral Immunity
Diaphragm
Skeletal Muscle
Spleen
Clone Cells
Monoclonal Antibodies
Cell Line

ASJC Scopus subject areas

  • Neuroscience(all)

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Myasthenia induced by monoclonal anti-acetylcholine receptor antibodies : Clinical and electrophysiological aspects. / Burres, S. A.; Crayton, J. W.; Gomez, C. M.; Richman, David P.

In: Annals of Neurology, Vol. 9, No. 6, 1981, p. 563-568.

Research output: Contribution to journalArticle

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