The clinicopathological significance of miR-1307 in chemotherapy resistant epithelial ovarian cancer

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Abstract

Background: We aimed to examine the expression of miR-1307 in chemosensitive and chemoresistant epithelial ovarian cancer tissues and cell lines and to analyze the clinicopathological significance of miR-1307 in ovarian cancer. Methods: MicroRNA microarray was used to screen differentially expressed microRNAs between the chemosensitive and chemoresistant epithelial ovarian cancer tissues. RT-PCR was used to validate the candidate microRNA. The potential target genes and their enriched biological pathways of microRNA were also analyzed. Dual Luciferase Reporter Gene Assay was conducted to validate the regulation of miRNA-1307 on the 3'-UTR of DAPK3. Results: miRNA-1307 was up-regulated in the chemoresistant epithelial ovarian cancer tissues compared to the chemosensitive counterparts. The up-regulation of miRNA-1307 was not associated with menopause, tumor differentiation state, clinical stage, and lymph node metastasis of ovarian cancer. Gene ontology analysis of miR-1307 candidate target genes indicated that miR-1307 candidate target genes were enriched in the processes of cell proliferation and differentiation, nucleotide synthesis and metabolism, and lymphocytes activation. Conclusion: Our results suggest that miRNA-1307 may play a role in the development of chemoresistance in ovarian cancer.

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Zhou, Y., Wang, M., Wu, J., Jie, Z., Chang, S., & Shuang, T. (2015). The clinicopathological significance of miR-1307 in chemotherapy resistant epithelial ovarian cancer. Journal of Ovarian Research, 8(1). https://doi.org/10.1186/s13048-015-0143-5

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