all the epithelial elements of the adult gland were positively labelled with two monoclonal antibodies , namely kg 8.13 ( 'broad spectrum ' anti-cytokeratin ) and antibody ks b.18 ( reactive with a simple cytokeratin-specific polypeptide of 49 x 10 ( 3 ) mr ) .
C0010803
cytokeratin
C0170517
cytokeratin