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TFRC promotes epithelial ovarian cancer cell proliferation and metastasis via up-regulation of AXIN2 expression.

ABSTRACT: Epithelial ovarian cancer (EOC) is the most common cause of gynecological cancer death. Recent studies have reported that iron overload could accelerate cancer progression. TFRC is an important participant in intracellular iron transport, and we noticed that it was abnormally overexpressed in EOC; however, its specific role in EOC remained unclear. Therefore, our study aimed to reveal the clinical significance and biological function of TFRC in human EOC. First, we detected dramatically increased TFRC expression in EOC tissues, which was associated with a worse prognosis for patients. Subsequently, we verified that TFRC knockdown significantly inhibited the proliferation and metastasis of EOC cells (SKOV3 and A2780) in vitro and in vivo. More significantly, we demonstrated that TFRC-mediated proliferation and metastasis of EOC cells resulted from its positive regulation of AXIN2 expression. In conclusion, our findings suggest that TFRC accelerates the progression of EOC by promoting cancer cell proliferation and metastasis via upregulation of AXIN2 expression, which highlights its potential as a novel therapeutic target for human EOC.

SUBMITTER: Huang Y

PROVIDER: S-EPMC7017730 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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TFRC promotes epithelial ovarian cancer cell proliferation and metastasis via up-regulation of AXIN2 expression.

Huang Yake Y Huang Jiani J Huang Yan Y Gan Lei L Long Ling L Pu Aimin A Xie Rongkai R

American journal of cancer research 20200101 1

Epithelial ovarian cancer (EOC) is the most common cause of gynecological cancer death. Recent studies have reported that iron overload could accelerate cancer progression. TFRC is an important participant in intracellular iron transport, and we noticed that it was abnormally overexpressed in EOC; however, its specific role in EOC remained unclear. Therefore, our study aimed to reveal the clinical significance and biological function of TFRC in human EOC. First, we detected dramatically increase ...[more]

PMID: 32064157

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Project description:Purpose: Circular RNAs (circRNAs) have been reported to regulate the incidence of tumor by regulating the transcriptional level and post-transcriptional level of tumor-related genes, and are significantly correlated with tumor metastasis and progression. CircRNA_100395 (circ_100395) has been reported to suppress lung cancer cell proliferation, and might act as an oncogene in deveopment of various cancers. However, the expression and function of circ_100395 in ovarian cancer has not been systematically researched. Methods: The expression of circ_100395 in ovarian cancer tissues was detected by Real-time Quantitative polymerase chain reaction (RT-qPCR), while the relationship between circ_100395 expression and clinicopathological characteristics was further analyzed. After increasing the expression of circ_100395 by plasmid transfection in ovarian cancer cells, we further investigated the cell proliferation, invasion and migration by cell counting kit-8 (CCK-8), and Transwell assays. Epithelial-mesenchymal transition (EMT) pathway was also measured by western blotting. In addition, the relationship among circ_100395, miR-1228 and p53 in ovarian cancer, was explored by luciferase reporter assay. Results: The expression of circ_100395 was found to be significantly down-regulated in ovarian cancer, while low expression of circ_100395 was highly correlated with the poor outcomes. In addition, upregulation of circ_100395 could significantly inhibit tumor growth, metastasis and EMT signaling pathway in ovarian cancer. Furthermore, the expression level of circ_100395 was negatively correlated with the expression of miR-1228, and with the addition of miR-1228 could reverse anti-cell proliferation effect induced by circ_100395 in ovarian cancer cells. In addition, p53 might be the key target of circ_100395 / miR-1228 axis in ovarian cancer. Conclusion: CircRNA_100395 could inhibit cell growth and metastasis of ovarian cancer cells via regulating the miR-1228/p53/EMT axis.

Dataset Information

TFRC promotes epithelial ovarian cancer cell proliferation and metastasis via up-regulation of AXIN2 expression.

Publications

TFRC promotes epithelial ovarian cancer cell proliferation and metastasis via up-regulation of AXIN2 expression.

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