Factors associated with disease progression in patients with gastrointestinal stromal tumors in the pre-imatinib era

Iesalnieks, Igors and Ruemmele, Petra and Dietmaier, Wolfgang and Jantsch, Thomas and Zuelke, Carl and Schlitt, Hans Juergen and Hofstaedter, Ferdinand and Anthuber, Matthias (2005) Factors associated with disease progression in patients with gastrointestinal stromal tumors in the pre-imatinib era. AMERICAN JOURNAL OF CLINICAL PATHOLOGY, 124 (5). pp. 740-748. ISSN 0002-9173,

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Abstract

The aim of this study was to determine the predictors of survival in 38 patients with curatively resected gastrointestinal stromal tumors (GISTs). The tumor was located in the stomach in 23 cases, the small bowel in 13, and the colon in 2. In 23 patients (61%), a mutation in exon 11 of the kit gene was detected. In 7 cases, all small gastric tumors, a mutation in the platelet-derived growth factor receptor alpha (PDGFRA) gene was detected. The overall 5-year survival rate was 70%. In 9 patients, GISTs relapsed, leading to an actuarial 5-year disease-free survival of 78%. By multivariate analysis, the presence of distant metastases, the proliferative (MIB-1) index, and deletional mutation in codons 557 and/or 558 of kit exon 11 correlated significantly with poor outcome. None of the PDGFRA mutant GISTs relapsed. These findings suggest a strong relationship between various tyrosine kinase receptor mutations and survival outcome in patients with GISTs.

Item Type: Article
Uncontrolled Keywords: OF-FUNCTION MUTATIONS; C-KIT; PROGNOSTIC-FACTORS; CLINICAL-COURSE; MUSCLE TUMORS; DNA-PLOIDY; BEHAVIOR; GENE; CELL; LEIOMYOSARCOMAS; gastrointestinal stromal tumor; GIST; prognostic factors; surgery
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Chirurgie
Medicine > Lehrstuhl für Pathologie
Depositing User: Dr. Gernot Deinzer
Date Deposited: 23 Apr 2021 08:18
Last Modified: 23 Apr 2021 08:18
URI: https://pred.uni-regensburg.de/id/eprint/35443

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