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Immunohistochemical studies on the poll gland of the dromedary camel (Camelus dromedarius) during the rutting season
Faculty
Veterinary Medicine
Year:
2012
Type of Publication:
Article
Pages:
363-369
Authors:
Ebada, Safwat, Helal, Amr, Alkafafy, Mohamed
DOI:
10.1016/j.acthis.2011.07.005
Journal:
ACTA HISTOCHEMICA ELSEVIER GMBH, URBAN \& FISCHER VERLAG
Volume:
114
Research Area:
Cell Biology
ISSN
ISI:000304339600009
Keywords :
Camel, Poll gland, Immunohistochemistry, S100, Cytokeratin, alpha-SMA
Abstract:
The poll glands are subcutaneous exocrine glands located on the back of the neck behind the ears in male camels. The function of poll glands is not well known, though they are thought to play a role during the rutting season. The presence, location and degree of immunolocalization of microfilaments and intermediate filament systems: actin and cytokeratins (Cks) and also S100 protein were studied in the poll glands in sexually mature one-humped camels during the rutting season. These proteins were variably expressed between the epithelia, perialveolar, interalveolar tissue and the periductal tissue. Strong alpha-smooth muscle actin (alpha-SMA) immunoreactivity (IR) was displayed by the perialveolar myoepithelial cells, periductal and vascular smooth muscle cells (SMCs), but not in the epithelial cells. Cytokeratin (Ck)-IR was strong in the epithelial lining of the secretory alveoli and excretory ducts, however, the apical blebs of the secretory cells were almost negative. Weak to moderate Ck-IR was observed in the perialveolar myoepithelial cells, but not in the interalveolar tissue or endothelial cells. S100 protein was expressed variably in the epithelial lining of the secretory alveoli. S100-IR was more obvious in the supranuclear region and the apical blebs. Variable reaction was observed in the perialveolar myoepithelial cells, periductal and interductal tissue and endothelial cells. (C) 2011 Elsevier GmbH. All rights reserved.
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