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  • Title: Knockdown of Sox2 Inhibits OS Cells Invasion and Migration via Modulating Wnt/β-Catenin Signaling Pathway.
    Author: Tang L, Wang D, Gu D.
    Journal: Pathol Oncol Res; 2018 Oct; 24(4):907-913. PubMed ID: 29619662.
    Abstract:
    Osteosarcoma (OS) was a prevalent malignant bone tumor which threatens people's health worldwide. Wnt/β catenin signaling pathway had been proved significant in various cancers, indicating its possible function in OS as well. Sox2, a crucial member among SOX family could regulate cells biologically. How Sox2 modulated Wnt/β catenin signaling pathway in OS remained to be discussed. The study aimed to investigate the effects of Sox2 on the invasion and migration of OS cells and the related molecular mechanisms. Twenty-four human OS and adjacent tissue samples were involved in this study. Human OS cell lines MG63 and HOS were selected for further investigation. The liposome carrier si-Sox2 which could interfere with the expression of Sox2 gene was built to transfect MG63 and HOS cells). QRT-PCR assay and western blot were utilized to analyze the expression of mRNA and proteins of Sox2. Transwell assay and wound healing assay were conducted to test the invasion and migration level of cells. The expression of GSK3, β-catenin, cyclin D1 and c-myc proteins were detected by western blot assay after transfection with si-Sox2. Compared with normal tissues and cells, the expression of Sox2 in OS tissues and cells was significantly higher. The mRNA and protein levels of Sox2 significantly decreased after transfection with si-Sox2. The invasion and migration of OS cells were down-regulated significantly through the inhibition of Sox2 by inactivating Wnt/β-catenin signaling pathway related proteins. Knockdown of Sox2 could inhibit invasion and migration of OS cells via modulating Wnt/β-catenin signaling pathway.
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