Forkhead box protein O1 (FOXO1) and paired box gene 3 (PAX3) overexpression is associated with poor prognosis in patients with cervical cancer
- 32 Downloads
Forkhead box protein O1 (FOXO1) and paired box gene 3 (PAX3) have been reported to play an imported role in human cancers, but their role in cervical cancer has not yet been clarified. In this study, we evaluated the functional role of FOXO1 in cervical cancer cells and investigated the expression and clinical significance of FOXO1 and PAX3 in cervical lesions.
In vitro assessment of cell function by cell viability, migration, and invasion assays were performed on FOXO1-knockdown cervical cancer cells. Immunohistochemical (IHC) staining analyses of FOXO1 and PAX3 were performed with a tissue microarray (TMA). The clinical significance was evaluated by comparing the data with various clinicopathologic characteristics, including survival of patients with cervical cancer.
In vitro results revealed that knockdown of FOXO1 is associated with decreased cell viability (p < 0.001), migration (p < 0.001), and invasion (p < 0.05), supporting the oncogenic role of FOXO1 in cervical cancer. FOXO1 and PAX3 expression was significantly higher in CIN (both p < 0.001) and cancer tissue (both p < 0.001) than in normal tissue. Multivariate analysis indicated that FOXO1 expression (hazard ratio 4.01 [95% CI 1.22–13.10], p = 0.021) and an advanced FIGO stage (hazard ratio 3.89 [95% CI 1.35–11.19], p = 0.012) were independent prognostic factors for overall survival.
This study reveals increased FOXO1 and PAX3 expression in cervical cancers and indicates an oncogenic role of FOXO1 in cervical cancer cells that correlates with poor patient survival.
KeywordsCervical cancer FOXO1 PAX3 Biomarker Prognosis Tissue microarray
Compliance with ethical standards
Conflict of interest
The authors have no conflict of interest to declare.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
- 6.Wang Y, Zhou Y, Graves DT (2014) FOXO transcription factors: their clinical significance and regulation. Biomed Res Int 2014:925350Google Scholar
- 10.Huang L, Huang Z, Fan Y et al (2017) FOXC1 promotes proliferation and epithelial-mesenchymal transition in cervical carcinoma through the PI3K-AKT signal pathway. Am J Transl Res 9:1297–1306Google Scholar
- 13.Liu W, Sui F, Liu J et al (2016) PAX3 is a novel tumor suppressor by regulating the activities of major signaling pathways and transcription factor FOXO3a in thyroid cancer. Oncotarget 7:54744–54757Google Scholar
- 17.Zhang Y, Jia L, Zhang Y et al (2017) Higher expression of FOXOs correlates to better prognosis of bladder cancer. Oncotarget 8:96313–96322Google Scholar