PMID- 33633310 OWN - NLM STAT- MEDLINE DCOM- 20211220 LR - 20211220 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 11 IP - 1 DP - 2021 Feb 25 TI - Clinical difference between fibroblast growth factor receptor 2 subclass, type IIIb and type IIIc, in gastric cancer. PG - 4698 LID - 10.1038/s41598-021-84107-x [doi] LID - 4698 AB - Fibroblast growth factor receptor 2 (FGFR2) has two isoforms: IIIb type and IIIc type. Clinicopathologic significance of these two FGFR2 subtypes in gastric cancer remains to be known. This study aimed to clarify the clinicopathologic difference of FGFR2IIIb and/or FGFR2IIIc overexpression. A total of 562 patients who underwent gastrectomy was enrolled. The expressions of FGFR2IIIb and FGFR2IIIc were retrospectively examined by immunohistochemistry or fluorescence in situ hybridization (FISH) using the 562 gastric tumors. We evaluated the correlation between clinicopathologic features and FGFR2IIIb overexpression and/or FGFR2IIIc overexpression in gastric cancer. FGFR2IIIb overexpression was observed in 28 cases (4.9%), and FGFR2IIIc overexpression was observed in four cases (0.7%). All four FGFR2IIIc cases were also positive for FGFR2IIIb, but not in the same cancer cells. FGFR2IIIb and/or FGFR2IIIc overexpression was significantly correlated with lymph node metastasis and clinical stage. Both FGFR2IIIb and FGFR2IIIc were significantly associated with poor overall survival. A multivariate analysis showed that FGFR2IIIc expression was significantly correlated with overall survival. FISH analysis indicated that FGFR2 amplification was correlated with FGFR2IIIb and/or FGFR2IIIc overexpression. These findings suggested that gastric tumor overexpressed FGFR2IIIc and/or FGFR2IIIb at the frequency of 4.9%. FGFR2IIIc overexpression might be independent prognostic factor for patients with gastric cancer. FAU - Yashiro, Masakazu AU - Yashiro M AD - Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. m9312510@med.osaka-cu.ac.jp. AD - Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. m9312510@med.osaka-cu.ac.jp. AD - Cancer Center for Translational Research, Osaka City University Graduate School of Medicine, Osaka, Japan. m9312510@med.osaka-cu.ac.jp. FAU - Kuroda, Kenji AU - Kuroda K AD - Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. AD - Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. FAU - Masuda, Go AU - Masuda G AD - Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. AD - Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. FAU - Okuno, Tomohisa AU - Okuno T AD - Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. AD - Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. FAU - Miki, Yuichiro AU - Miki Y AD - Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. AD - Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. FAU - Yamamoto, Yurie AU - Yamamoto Y AD - Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. FAU - Sera, Tomohiro AU - Sera T AD - Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. AD - Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. FAU - Sugimoto, Atsushi AU - Sugimoto A AD - Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. AD - Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. FAU - Kushiyama, Shuhei AU - Kushiyama S AD - Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. AD - Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. FAU - Nishimura, Sadaaki AU - Nishimura S AD - Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. AD - Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. FAU - Togano, Shingo AU - Togano S AD - Molecular Oncology and Therapeutics, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. AD - Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. FAU - Ohira, Masaichi AU - Ohira M AD - Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210225 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - EC 2.7.10.1 (FGFR2 protein, human) RN - EC 2.7.10.1 (Receptor, Fibroblast Growth Factor, Type 2) SB - IM MH - Humans MH - Immunohistochemistry MH - In Situ Hybridization, Fluorescence MH - Lymph Nodes/metabolism MH - Prognosis MH - Receptor, Fibroblast Growth Factor, Type 2/classification/*metabolism MH - Retrospective Studies MH - Stomach Neoplasms/*metabolism/pathology MH - Survival Rate PMC - PMC7907198 COIS- Masakazu Yashiro received research funding from Daiichi Sankyo Co., Ltd. The other authors declare no competing interests. EDAT- 2021/02/27 06:00 MHDA- 2021/12/21 06:00 PMCR- 2021/02/25 CRDT- 2021/02/26 05:59 PHST- 2020/09/27 00:00 [received] PHST- 2021/02/08 00:00 [accepted] PHST- 2021/02/26 05:59 [entrez] PHST- 2021/02/27 06:00 [pubmed] PHST- 2021/12/21 06:00 [medline] PHST- 2021/02/25 00:00 [pmc-release] AID - 10.1038/s41598-021-84107-x [pii] AID - 84107 [pii] AID - 10.1038/s41598-021-84107-x [doi] PST - epublish SO - Sci Rep. 2021 Feb 25;11(1):4698. doi: 10.1038/s41598-021-84107-x.