期刊
STEM CELL RESEARCH & THERAPY
卷 9, 期 -, 页码 -出版社
BMC
DOI: 10.1186/s13287-018-0954-6
关键词
Wnt/beta-catenin signaling pathway; Human periodontal ligament stem cell proliferation; Gold nanoparticle; shRNA; siRNA
资金
- National Natural Science Foundation of Shanghai [17ZR1432800]
- Shanghai Medical exploration project [17411972600]
Background: Several studies have confirmed that gold nanoparticles (AuNPs) of specific concentration and size exert a boosting effect on cell proliferation; however, the mechanism through which this effect occurs remains unknown. This study explores the canonical Wnt signaling pathway in AuNP promotion of human periodontal ligament stem cell (hPDLSC) proliferation. Methods: MTS was employed to evaluate hPDLSC proliferation. The interference of LRP5 and beta-catenin was steered by shRNA plasmids and siRNA, respectively, at which point the expression of MYC, CCND1, AXIN2, and POU5F1 had been estimated via real-time PGR The expressions of LRP5 and beta-catenin were detected via western blot assay. Results: The pioliferation of hPDLSCs treated with 60 nm AuNPs at 56 mu M was clearly elevated. In contrast, mu-catenin siRNA significantly decreased cell viability. The LRP5 shRNA plasmid did not consistently impact cells. The expressions of these four genes downstream of the Wnt/beta-catenin signaling pathway were not significantly overexpressed in response to the interference of shRNA plasmid/siRNA with the treatment of AuNPs. Conclusions: These results suggest that the Wnt/beta-catenin signaling pathway plays a significant role in the process of AuNP promotion of hPDLSC proliferation.
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