Journal
PATHOLOGY RESEARCH AND PRACTICE
Volume 215, Issue 7, Pages -Publisher
ELSEVIER GMBH
DOI: 10.1016/j.prp.2019.152452
Keywords
DAAM1; miR-208-5p; Ovarian cancer; Metastasis
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Ovarian cancer (OvCa) has the highest morbidity among all gynecologic cancers worldwide, and its distant metastasis is one of main causes for the poor prognosis of OvCa patients. Our previous studies have reported that DAAM1-involved signaling pathways play vital roles in metastasis of breast cancer. However, whether DAAM1 participates in OvCa migration and/or invasion is still unknown. The impact of DAAM1 on cell migration and invasion in OvCa was evaluated by wound healing assay and Boyden chamber assay. The specific miRNA targeting DAAM1 was predicted by bioinformatics methods and verified by dual-luciferase activity assay. The miR-208a-5p expression levels in OvCa tissues and the impacts of miR-208a-5p on cell migration and invasion were also assessed, respectively. High expression of DAAM1 was associated with distant metastasis in OvCa. Silence of DAAM1 by siRNA blocked the migration and invasion of OVCAR-3 cells. Mill-208a-5p directly targeted DAAM1 and was shown a decreased expression in metastatic OvCa tissues. Elevated expression of miR-208a-5p inhibited the migration and invasion of OVCAR-3 cell which can be rescued by DAAM1 overexpression. Our data suggest that miR-208.5p/DAAM1 axis participates in OvCa migration and invasion and may be a novel clinical target to limit OvCa metastasis.
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