thus , in contrast to t47d cells , mcf-7 cells in monolayer culture form apical tight junctions , do not allow a ricin-horseradish peroxidase conjugate , which binds to terminal galactose residues on the apical surface , to stain the basolateral membrane domain , and express a surface antigen ( mfgm-a ) only in the apical surface membrane domain , as do normal mammary epithelial cells in vivo .
C0388561
mfgm
C0014597
epithelial cells