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Overexpression of forkhead box protein M1 (FOXM1) plays a critical role in colorectal cancer

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Abstract

Background

The forkhead box M1 (FOXM1), an important regulator of cell differentiation and proliferation, is overexpressed in a number of aggressive human carcinomas. However, the clinical significance of FOXM1 signaling in human colorectal cancer (CRC) pathogenesis remains unknown. The aim of this study was to evaluate the role of FOXM1 in CRC tumorigenesis.

Methods

We investigated FOXM1 expression in 103 cases of primary CRC and matched normal tissue specimens and explored the underlying mechanisms of altered FOXM1 expression and the impact of this altered expression on CRC proliferation and metastasis using in vitro models of CRC.

Results

The results showed that high expression of FOXM1 staining was 85.44 % (88/103) in 103 cases of CRC and 20.39 % (21/103) in 103 cases of adjacent non-cancerous tissue samples; the difference of FOXM1 expression between two groups was statistically significant (P < 0.001). Silencing of FOXM1 inhibited the proliferation of CRC cells, and the invasion and migration of CRC cells were distinctly suppressed. Furthermore, FOXM1 knockdown led to substantial reductions in VEGF-A levels in CRC cell lines.

Conclusions

Our data suggest that the pathogenesis of CRC maybe mediated by FOXM1, and FOXM1 could represent selective targets for the molecularly targeted treatments of CRC.

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Acknowledgments

This work is supported by the Bureau of Luoyang City Science and Technology 2015 Key Project Fund.

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Authors and Affiliations

  1. Department of Oncology, The Affiliated Luoyang Central Hospital of Zhengzhou University, No. 288 Zhongzhou Road, Luoyang, 471000, China

    H. G. Zhang, X. P. Shi, W. H. Ren, P. J. Chen, Y. F. Lou, B. Li & X. Y. Luo

  2. Department of Surgery, The Affiliated Luoyang Central Hospital of Zhengzhou University, Luoyang, 471000, China

    X. W. Xu, B. W. Han & Z. H. Li

Authors
  1. H. G. Zhang
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  2. X. W. Xu
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  3. X. P. Shi
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  4. B. W. Han
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  5. Z. H. Li
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  6. W. H. Ren
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  7. P. J. Chen
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  8. Y. F. Lou
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  9. B. Li
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  10. X. Y. Luo
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Corresponding author

Correspondence to X. Y. Luo.

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The authors have no conflict of interest to declare.

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H. G. Zhang and X. W. Xu share the first author.

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Zhang, H.G., Xu, X.W., Shi, X.P. et al. Overexpression of forkhead box protein M1 (FOXM1) plays a critical role in colorectal cancer. Clin Transl Oncol 18, 527–532 (2016). https://doi.org/10.1007/s12094-015-1400-1

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  • DOI: https://doi.org/10.1007/s12094-015-1400-1

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