cryostatic sections of rat large bowel tumors induced by 1,2-dimethylhydrazine were stained with monoclonal antibodies against different proteins of intermediate filaments : ( a ) against prekeratin ( mol . mass 49 000 , pk49 ) found in many epithelial cells and ( b ) against vimentin , a constituent of intermediate filaments of mesenchymal cells .
C0042666
vimentin
C0021770
intermediate