we isolated hybridoma cells , which secreted monoclonal antibody ( mab ) 121 sle , an igm showing the following reactivities : ( 1 ) by immunodiffusion , mab 121 sle and mab ns 19-9 ( a monoclonal antibody directed against a sialylated lewis ( a ) antigen called ca 19-9 ) showed an identical precipitin line with mucin preparation containing this ca 19-9 ;
C0007634
cells
C1327616
secreted