Meiri H ; Zeitoun I ; Grunhagen HH ; Lev-Ram V ; Eshhar Z ; Schlessinger J ;

Brain Res vol. 310 (1)   pp. 168-73, 17 Sep 1984

Monoclonal antibodies were generated against native eel electroplax sodium channels in their natural membrane. These antibodies block nerve conduction in rat central (optic) and peripheral (sciatic) nerve. The antibody binding to eel electroplax membrane fragments and to rat brain synaptosomes can be modulated by neurotoxins. Thus it implies that active sites of the sodium channels are immunogenic in their natural membrane. Unlike the antibodies described in the past, our antibodies recognize antigenic determinants which are associated with the physiological activity of the channel and have been conserved through evolution.

Animal ;  Antibodies,Monoclonal ;  Antigen-Antibody Reactions ;  Eels ;  Electric Organ: immunology ;  Fluorescent Antibody Technique ;  In vitro ;  Ion Channels: immunology ;  Nerve Block ;  Neural Conduction ;  Ranvier's Nodes: immunology ;  Rats ;  Sodium: metabolism ;  Support,Non-U.S.Gov't ;  Support,U.S.Gov't,P.H.S. ;  56710 ;