Identification of XD23 as a potent inhibitor of osteosarcoma via downregulation of DKK1 and activation of the WNT/β-Catenin pathway

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Osteosarcoma, the most prevalent malignant bone tumor, is notorious for its aggressive growth and invasiveness. The highly mutable genome of osteosarcoma has made identifying a key oncogene challenging, hindering the development of targeted treatments. Our study validates the effectiveness of XD23, an anti-cancer agent we previously identified, in curbing osteosarcoma proliferation, metastasis, EMT differentiation, and bone destruction and promoting osteosarcoma apoptosis. It further elucidated that XD23 thwarts osteosarcoma by suppressing DKK1 expression, which in turn activates the WNT-β/Catenin pathway. This research presents the concrete evidence of DKK1's involvement in osteosarcoma development, offering a foundation for the development of DKK1 inhibitors as novel treatments for this disease.

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