Annals of Surgical Oncology

, Volume 20, Issue 3, pp 1035–1043 | Cite as

Overexpression of Forkhead Box M1 Transcription Factor (FOXM1) is a Potential Prognostic Marker and Enhances Chemoresistance for Docetaxel in Gastric Cancer

  • Kaoru Okada
  • Yoshiyuki Fujiwara
  • Tsuyoshi Takahashi
  • Yurika Nakamura
  • Shuji Takiguchi
  • Kiyokazu Nakajima
  • Hiroshi Miyata
  • Makoto Yamasaki
  • Yukinori Kurokawa
  • Masaki Mori
  • Yuichiro Doki
Gastrointestinal Oncology



Mammalian forkhead box transcription factor 1 (FoxM1) has been overexpressed and correlated with pathogenesis in a variety of human malignancies. We investigated the expression status and clinical significance of its overexpression in gastric adenocarcinoma. Furthermore, we demonstrated correlations between FoxM1 overexpression and drug resistance to chemotherapeutic agents in gastric cancer cells and gastric cancer patients treated with chemotherapy.


Fifty-three (69 %) of 77 tumors were diagnosed as positive for FoxM1 by immunohistochemistry. Multivariate analysis identified FoxM1 expression as a significant independent prognostic predictor for overall and disease-free survival in gastric cancer patients (hazard ratio 3.9 and 3.5, respectively). Furthermore, we investigated associations between FoxM1 overexpression and clinical response of chemotherapy for patients with advanced gastric cancer.


Our clinical results showed that FoxM1 overexpression was significantly associated with resistance in chemotherapy of docetaxel in addition to 5-fluorouracil (5-FU) plus S-1 plus cisplatin (CDDP) and was not significant in chemotherapy of 5-FU plus CDDP for patients with advanced gastric cancer. In vitro experiments showed that Mkn7 transfected FoxM1 siRNA significantly reduced chemoresistance to docetaxel over that with parental cell lines and Mkn45 transfected with FoxM1 significantly enhanced chemoresistance to docetaxel over that with parental cell lines.


Our study showed that FoxM1 was an independent prognostic factor in gastric cancer. Furthermore, we showed that FoxM1 was a critical molecule for chemoresistance to a microtubule-stabilizing anticancer agent, docetaxel. Taken together, those results suggest that inhibition of overexpressed FoxM1 will be a promising therapeutic strategy for advanced gastric cancer.


Gastric Cancer Overall Survival Docetaxel Gastric Cancer Cell CDDP 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Society of Surgical Oncology 2012

Authors and Affiliations

  • Kaoru Okada
    • 1
  • Yoshiyuki Fujiwara
    • 1
  • Tsuyoshi Takahashi
    • 1
  • Yurika Nakamura
    • 1
  • Shuji Takiguchi
    • 1
  • Kiyokazu Nakajima
    • 1
  • Hiroshi Miyata
    • 1
  • Makoto Yamasaki
    • 1
  • Yukinori Kurokawa
    • 1
  • Masaki Mori
    • 1
  • Yuichiro Doki
    • 1
  1. 1.Department of Gastroenterological Surgery, Graduate School of MedicineOsaka UniversityOsakaJapan

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