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Erschienen in: Clinical Oral Investigations 3/2011

01.06.2011 | Original Article

Altered expression of cell–cell adhesion molecules β-catenin/E-cadherin and related Wnt-signaling pathway in sporadic and syndromal keratocystic odontogenic tumors

verfasst von: Samer George Hakim, Hartwig Kosmehl, Peter Sieg, Thomas Trenkle, Hans-Christian Jacobsen, Geza Attila Benedek, Julika Ribbat, Oliver Driemel

Erschienen in: Clinical Oral Investigations | Ausgabe 3/2011

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Abstract

Differential diagnosis of the keratocystic odontogenic tumor (KCOT) still represents a challenging problem especially if compared with the dentigerous cyst, which is similar in clinical and radiological course. Histological assessment of this entity may therefore draw crucial attention since various radical procedures are recommended for such lesions in contrast to dentigerous cysts. Since recent reports could prove the involvement of wingless(Wnt)-signaling pathway and β-catenin in the pathogenesis of many odontogenic and neoplastic lesions indicating impairment of cell–cell adhesion, we investigated the expression of two Wnt-signaling pathways, Wnt-1 and Wnt-10A as well as β-catenin and E-cadherin along with other related proteins in both lesions. We found a significant down-regulation in the expression of cell adhesion proteins β-catenin and E-cadherin along with alteration of Wnt-1 and Wnt-10A expression in the epithelium of KCOT. We assessed a specific focal distribution pattern of p63 in the suprabasal cell layer and a significant up-regulation of cyclin D1. Furthermore, laminin α-2 was a characteristic marker labelling only the basement membrane of dentigerous cysts. These results provide a new hypothesis explaining a molecular mechanism to understand initiating and development of KCOTs and an alternative therapeutic approach, especially for syndromal patients, where these multilocal lesions may involve and destroy wide orofacial bony structures.
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Metadaten
Titel
Altered expression of cell–cell adhesion molecules β-catenin/E-cadherin and related Wnt-signaling pathway in sporadic and syndromal keratocystic odontogenic tumors
verfasst von
Samer George Hakim
Hartwig Kosmehl
Peter Sieg
Thomas Trenkle
Hans-Christian Jacobsen
Geza Attila Benedek
Julika Ribbat
Oliver Driemel
Publikationsdatum
01.06.2011
Verlag
Springer-Verlag
Erschienen in
Clinical Oral Investigations / Ausgabe 3/2011
Print ISSN: 1432-6981
Elektronische ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-010-0388-8

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