the use of 2 % and 4 % paraformaldehyde or 2 % glutaraldehyde solutions before immunoperoxidase ( pap ) staining resulted in the loss of hca c-specific reactivity in the surface epithelial cells of human appendicular and gastric mucosae , whereas the antigenic reactivity of hca c was well retained in the parietal cells of gastric glands .
C0017136
gastric mucosae
C0030559
parietal cells