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Immunohistochemical study of the lymphatic vessels in major salivary glands of the rat






Okajimas Folia Anatomica Japonica 87(4): 177-180

Immunohistochemical study of the lymphatic vessels in major salivary glands of the rat

This study was designed to examine whether lymphatic vessels are present in the lobules of major salivary glands in the rat. Immunostaining with an antibody against podoplanin, a lymphatic endothelial cell marker, was performed on sections of the submandibular, sublingual and parotid glands. Light microscopy demonstrated podoplanin-positive lymphatic vessels around the interlobular ducts and the interlobular arteries and veins in the interlobular connective tissue in all of the major salivary glands. No podoplanin-positive lymphatic vessels were found in the lobules. Electron microscopy also demonstrated lymphatic endothelial cells showing podoplanin expression only in the interlobular connective tissue. These findings suggest that the lymphatic system of the rat major salivary glands originates in the interlobular connective tissue, and not in the lobules.


Accession: 053703611

PMID: 21516983



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