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Immunophenotyping and oncogene amplifications in tumors of the papilla of Vater

Baumhoer, D. and Zlobec, I. and Tornillo, L. and Dietmaier, W. and Wuensch, P. H. and Hartmann, A. and Sessa, F. and Ruemmele, P. and Terracciano, L. M.. (2008) Immunophenotyping and oncogene amplifications in tumors of the papilla of Vater. Virchows Archiv, Vol. 453. pp. 579-588.

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Official URL: http://edoc.unibas.ch/dok/A6004933

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Abstract

Carcinomas of the ampulla of Vater are rare and assumed to generally arise from preexisting adenomas (adenoma-carcinoma sequence). Histologically, distinct subtypes can be distinguished that were shown to differ significantly in terms of clinical outcome. Since pathologists usually receive bioptic tissue samples of ampullary tumors obtained during endoscopy, accurate classification of carcinoma subtypes can sometimes be difficult on morphological criteria alone. We therefore performed immunohistochemistry using a panel of established marker proteins (CK7, CK20, p21, p27, ESA, bax, and ephrin-B2) on 175 carcinoma, 111 adenoma, and 152 normal mucosa specimens of the ampulla of Vater and identified distinct immunoprofiles for every carcinoma subtype. Fluorescence in situ hybridization analyses of therapeutic target genes (c-myc, EGFR1, CCND1, HER2) found CCND1 to represent the most frequently amplified gene in our series (7.5%).
Faculties and Departments:03 Faculty of Medicine > Bereich Querschnittsfächer (Klinik) > Pathologie USB
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Querschnittsfächer (Klinik) > Pathologie USB
03 Faculty of Medicine > Bereich Querschnittsfächer (Klinik) > Pathologie USB > Molekulare Pathologie (Terracciano)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Querschnittsfächer (Klinik) > Pathologie USB > Molekulare Pathologie (Terracciano)
UniBasel Contributors:Terracciano, Luigi M. and Tornillo, Luigi
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Springer
ISSN:0945-6317
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:08 Nov 2012 16:23
Deposited On:08 Nov 2012 16:20

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