Expression patterns of E2F transcription factors and their potential prognostic roles in breast cancer

Oncology Letters
Yunhai LiGuosheng Ren

Abstract

E2Fs, as a family of pivotal transcription factors, have been implicated in multiple biological functions in human cancer; however, the expression and prognostic significance of E2Fs in breast cancer remains unknown. In the present study, the mRNA expression patterns of E2Fs in breast cancer were investigated with Oncomine and The Cancer Genome Atlas data. Prognostic values of E2Fs for patients with breast cancer were determined using the Kaplan-Meier plotter database. The results strongly indicated that E2F1, E2F2, E2F3, E2F5, E2F7 and E2F8 were overexpressed in patients with breast cancer, whereas E2F4 and E2F6 exhibited no expression difference between patients with cancer and healthy controls. In survival analyses, elevated E2F1, E2F3, E2F5, E2F7 and E2F8 expression levels were significantly associated with lower overall survival, relapse-free survival (RFS), distant metastasis-free survival (DMFS) or post-progression survival for patients with breast cancer. Furthermore, high expression of E2F4 indicated improved RFS but reduced DMFS. Subgroup analyses based on four clinicopathological factors further revealed that E2Fs were associated with the prognosis of patients with breast cancer in an estrogen receptor-, progesterone...Continue Reading

Citations

Aug 29, 2020·International Journal of Cancer. Journal International Du Cancer·Emilio Ugalde-MoralesKamila Czene
Apr 11, 2019·Frontiers in Oncology·Quan ZhouMan-Zhen Zuo
Jan 2, 2021·Open Medicine·Hongkai ZhangRong Ma
May 7, 2021·Bioscience Trends·Luwen LiJihong Pan
Sep 4, 2021·Frontiers in Oncology·Dan XieTing Ye
Sep 2, 2021·Molecular Cancer Research : MCR·Xiaolan LiuGuojun Zhao

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KM plotter

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