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Immunohistochemistry with keratin, vimentin, desmin, and alpha-smooth muscle actin monoclonal antibodies in canine mammary gland: normal mammary tissue

Vos, J.H.; van den Ingh, T.S.; Misdorp, W.; Molenbeek, R.F.; van Mil, F.N.; Rutteman, G.R.; Ivanyi, D.; Ramaekers, F.C.

Veterinary Quarterly 15(3): 102-107

1993


ISSN/ISBN: 0165-2176
PMID: 7505509
DOI: 10.1080/01652176.1993.9694383
Accession: 008822036

Normal canine mammary gland tissue was studied immunohistochemically with monoclonal antibodies (MoAbs) directed against various human keratin types, vimentin, desmin, and alpha-smooth muscle actin. Both ductal and alveolar luminal cells were immunoreactive with MoAbs recognizing respectively human keratins no. 7, 8, 18 and 19. In addition, some ductal luminal cells were labelled with a keratin 4 and a keratin 10 MoAb. Basal/myoepithelial cells were immunoreactive only with MoAbs directed against keratin 14, keratins 14 and 17, and alpha-smooth muscle actin. The vimentin MoAb merely labelled solitary loose intraluminal cells representing macro-phages or sloughed epithelial cells. These findings correspond largely to observations made in human breast tissue.

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