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Published in: World Journal of Surgical Oncology 1/2017

Open Access 01-12-2017 | Research

Different clinical significance of FGFR1–4 expression between diffuse-type and intestinal-type gastric cancer

Authors: Mikito Inokuchi, Hideaki Murase, Sho Otsuki, Tatsuyuki Kawano, Kazuyuki Kojima

Published in: World Journal of Surgical Oncology | Issue 1/2017

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Abstract

Background

Receptor tyrosine kinases promote tumor progression in many cancers, although oncologic activation differs between diffuse-type gastric cancer (DGC) and intestinal-type gastric cancer (IGC). Fibroblast growth factor receptor (FGFR) is one RTK, and we previously reported the clinical significance of FGFR1, 2, 3, and 4 in gastric cancer. The aim of the present study was to reevaluate the clinical significance of FGFR1–4 expression separately in DGC and IGC.

Methods

Tumor samples, including 109 DGCs and 100 IGCs, were obtained from patients who underwent gastrectomy between 2003 and 2007 in our institution. The expression levels of FGFR1, 2, 3, and 4 were measured in the tumors by immunohistochemical analysis.

Results

In DGC, high expression of FGFR1, FGFR2, or FGFR4 was significantly associated with the depth of invasion, lymph-node metastasis, pathological stage, and distant metastasis or recurrent disease. Patients with high expression of FGFR1, FGFR2, or FGFR4 had significantly poorer disease-specific survival (DSS) (p = 0.009, p = 0.001, and p = 0.023, respectively). In IGC, only FGFR4 expression was significantly associated with factors relative to tumor progression and with shorter DSS (p = 0.012).

Conclusion

In conclusion, high FGFR4 expression correlated with tumor progression and survival in both DGC and IGC, whereas high expression of FGFR1 and 2 correlated with tumor progression and survival in only DGC.
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Metadata
Title
Different clinical significance of FGFR1–4 expression between diffuse-type and intestinal-type gastric cancer
Authors
Mikito Inokuchi
Hideaki Murase
Sho Otsuki
Tatsuyuki Kawano
Kazuyuki Kojima
Publication date
01-12-2017
Publisher
BioMed Central
Published in
World Journal of Surgical Oncology / Issue 1/2017
Electronic ISSN: 1477-7819
DOI
https://doi.org/10.1186/s12957-016-1081-4

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