Heparanase gene and protein expression in ameloblastoma: possible role in local invasion of tumor cells

Nagatsuka, H. and Han, P.P. and Tsujigiwa, H. and Siar, Chong Huat and Gunduz, M. and Sugahara, T. and Sasaki, A. and Nakajima, M. and Naomoto, Y. and Nagai, N. (2005) Heparanase gene and protein expression in ameloblastoma: possible role in local invasion of tumor cells. Oral Oncology, 41 (5). pp. 542-548. ISSN 1368-8375, DOI https://doi.org/10.1016/j.oraloncology.2005.01.004.

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Official URL: https://doi.org/10.1016/j.oraloncology.2005.01.004

Abstract

Ametoblastoma is the most common odontogenic neoplasm, particularized by its local invasiveness. Heparanase is the endo-glucuronidase enzyme that specifically cleaves heparan sulfate, the important modulator of extracellular matrix, and related to invasion of tumor cells. In this study, we addressed to show the gene expression and localization of heparanase in ametoblastoma. Immunohistochemistry and in situ hybridization of heparanase were carried out in 23 ameloblastomas. Strong expression of heparanase at both mRNA and protein levels was detected in all ameloblastomas studied. Small tumor nests and budding epithelial. branches showed stronger staining pattern and the stromal tissues at the immediate vicinity of the tumor nests with strong heparanase expression were loose and edematous. Cystic areas and squamous metaplastic areas of the tumor showed intense staining with heparanase antibody proposing the implication of heparanase in these processes. These results suggest the possible contribution of heparanase in the local invasiveness and secondary morphologic changes of ameloblastoma. (c) 2005 Elsevier Ltd. All rights reserved.

Item Type: Article
Funders: UNSPECIFIED
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Uncontrolled Keywords: Ameloblastoma; Heparanase; Heparan sulfate; Local invasion
Subjects: R Medicine > RK Dentistry
Divisions: Faculty of Dentistry > Dept of Oral Pathology & Oral Medicine & Periodontology
Depositing User: Ms Nursyafiqah Abd Malek
Date Deposited: 09 Jan 2013 02:39
Last Modified: 13 Nov 2019 02:30
URI: http://eprints.um.edu.my/id/eprint/4291

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