Open Access

Forkhead transcription factor 1 inhibits endometrial cancer cell proliferation via sterol regulatory element‑binding protein 1

  • Authors:
    • Yifang Zhang
    • Lili Zhang
    • Hengzi Sun
    • Qingtao Lv
    • Chunping Qiu
    • Xiaoxia Che
    • Zhiming Liu
    • Jie Jiang
  • View Affiliations

  • Published online on: December 12, 2016     https://doi.org/10.3892/ol.2016.5480
  • Pages: 731-737
  • Copyright: © Zhang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The morbidity and mortality associated with endometrial cancer (EC) has increased in recent years. Regarded as a tumor suppressor, forkhead transcription factor 1 (FOXO1) has various biological activities and participates in cell cycle progression, apoptosis and differentiation. Notably, FOXO1 also functions in the regulation of lipogenesis and energy metabolism. Lipogenesis is a feature of cancer and is upregulated in EC. Sterol regulatory element‑binding protein 1 (SREBP1) is a transcription factor that is also able to regulate lipogenesis. Increased expression of SREBP1 is directly correlated with malignant transformation of tumors. A previous study demonstrated that SREBP1 was highly expressed in EC and directly resulted in tumorigenesis. However, the association between FOXO1 and SREBP1 in EC is not clear. In the present study, lentiviruses overexpressing FOXO1 were used in cell transfection and transduction. Cell viability assays demonstrated that the overexpression of FOXO1 was able to suppress cell proliferation significantly in Ishikawa and AN3 CA cell lines. In addition, FOXO1 overexpression significantly inhibited cell migration and invasion ability in vitro. In xenograft models, overexpression of FOXO1 suppressed cell tumorigenesis, and western blot analysis demonstrated that SREBP1 expression was markedly reduced in the FOXO1‑overexpressing cells. It may therefore be concluded that FOXO1 is able to inhibit the proliferative capacity of cells in vitro and in vivo, in addition to the migratory and invasive capacities in vitro by directly targeting SREBP1.
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February-2017
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Spandidos Publications style
Zhang Y, Zhang L, Sun H, Lv Q, Qiu C, Che X, Liu Z and Jiang J: Forkhead transcription factor 1 inhibits endometrial cancer cell proliferation via sterol regulatory element‑binding protein 1. Oncol Lett 13: 731-737, 2017
APA
Zhang, Y., Zhang, L., Sun, H., Lv, Q., Qiu, C., Che, X. ... Jiang, J. (2017). Forkhead transcription factor 1 inhibits endometrial cancer cell proliferation via sterol regulatory element‑binding protein 1. Oncology Letters, 13, 731-737. https://doi.org/10.3892/ol.2016.5480
MLA
Zhang, Y., Zhang, L., Sun, H., Lv, Q., Qiu, C., Che, X., Liu, Z., Jiang, J."Forkhead transcription factor 1 inhibits endometrial cancer cell proliferation via sterol regulatory element‑binding protein 1". Oncology Letters 13.2 (2017): 731-737.
Chicago
Zhang, Y., Zhang, L., Sun, H., Lv, Q., Qiu, C., Che, X., Liu, Z., Jiang, J."Forkhead transcription factor 1 inhibits endometrial cancer cell proliferation via sterol regulatory element‑binding protein 1". Oncology Letters 13, no. 2 (2017): 731-737. https://doi.org/10.3892/ol.2016.5480