Abstract
This article was aimed to study the FOXF2 effects on cervical cancer. Tumor tissues and adjacent tissues of 41 cervical cancer patients were collected. Human endometrial epithelial cells (hEEC) and Hela cells were cultured. FOXF2 expression vector and its empty vector were transfected into Hela cells, and named as pcDNA 3.1-FOXF2 group and Vector group, respectively. Hela cells without any treatment were set as Blank group. qRT-PCR was used to detect mRNA expression. Nude mouse xenograft assay was performed to test Hela cells proliferation ability in vivo. FOXF2 and β-catenin positive cell numbers were detected by immunohistochemistry. Protein expression was analyzed by Western blot. Cells migration and invasion were conducted by Transwell. Tumor tissues and Hela cells FOXF2 expression were lower than that in adjacent tissues and hEEC (P<0.01). Low FOXF2 expression predicted poor outcomes of cervical cancer patients. Compared with Blank group and Vector group, Hela cells of pcDNA 3.1-FOXF2 group were with higher FOXF2 expression, lower OD495 value, migrated and invaded cells, higher E-cadherin expression, lower Vimentin and Snail expression, smaller tumor volume in nude mice, lower c-Myc, CyclinDl, MMP9, Lgr5, and nuclear β-catenin expression (all P<0.01). FOXF2 inhibits Hela cells proliferation, migration, and invasion through regulating Wnt signaling pathway.
Highlights
Cervical cancer is the third most common tumor amongst women in the world
forkhead box f2 (FOXF2) was dramatically down-regulated in cervical cancer patients, and low FOXF2 expression predicted poor outcomes of cervical cancer patients
FOXF2 deficiency could induce epithelial–mesenchymal transition (EMT) in Huh7 cells, which further resulted in the formation of metastasis
Summary
Cervical cancer is the third most common tumor amongst women in the world. Researchers revealed that in United States, ∼12000 patients were diagnosed with cervical cancer each year [1] and 4100 cases died [2]. Despite the fact that a slight decline in cervical cancer incidence was found over the past decade, cervical cancer is still the second leading cause of cancer-related deaths amongst women in developing countries [3]. Consistent with other malignancies, it was difficult to fundamentally cure cervical cancer through traditional treatment, such as surgical resection, radiotherapy, and chemotherapy [4,5]. With the development of medicine, many researchers considered that treatment of tumors at the genetic level could achieve the goal of complete cure. The discovery of effective therapeutic targets is very important for the advancement of cancer treatment
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