Logo image
Targeting the Wnt/β-catenin pathway in human osteosarcoma cells
Journal article   Open access   Peer reviewed

Targeting the Wnt/β-catenin pathway in human osteosarcoma cells

Fang Fang, Ashley VanCleave, Ralph Helmuth, Haydee Torres, Kirby Rickel, Hannah Wollenzien, Hongli Sun, Erliang Zeng, Jing Zhao and Jianning Tao
Oncotarget, Vol.9(95), pp.36780-36792
12/01/2018
DOI: 10.18632/oncotarget.26377
PMCID: PMC6298399
PMID: 30613366
url
https://doi.org/10.18632/oncotarget.26377View
Published (Version of record) Open Access

Abstract

Aberrant activation of Wnt signaling has been implicated in human osteosarcoma, which may provide a genetic vulnerability that can be targeted in osteosarcoma treatment. To test whether Wnt activation is necessary for osteosarcoma growth, colony formation, invasion, and metastasis, we treated human osteosarcoma cells with a small molecule inhibitor of Wnt/β-catenin, PRI-724, which suppresses Wnt/β-catenin-mediated transcription. We found increased protein levels of endogenous active-β-catenin in five human osteosarcoma cell lines. Treatment with PRI-724 was sufficient to inhibit human osteosarcoma 143B and SJSA-1 cell proliferation. Suppressed Wnt signaling was confirmed by decreased protein levels of the Wnt target Cyclin D1. Furthermore, we revealed significant inhibitory effects on cell migration, invasion, and colony formation in the human osteosarcoma cells. Using deposited data from next generation sequencing studies, we analyzed somatic mutations and gene expression of components in the Wnt/β-catenin pathway. We found somatic mutations and upregulated gene expression of many components in the Wnt/ β-catenin pathway, indicating activated Wnt signaling. Taken together, our results illustrate the critical role of Wnt/β-catenin signaling in human osteosarcoma pathogenesis and growth, as well as the therapeutic potential of Wnt inhibitors in the treatment of human osteosarcoma.
β-catenin signaling Research Paper PRI-724 Wnt Cyclin D1 osteosarcoma

Details

Metrics

39 Record Views
Logo image