Title : Wnt5a is a key target for the pro-osteogenic effects of iron chelation on osteoblast progenitors.

Pub. Date : 2016 Dec

PMID : 27540134






7 Functional Relationships(s)
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1 To elucidate whether the pro-osteogenic effect of deferoxamine is mediated via Wnt signaling, we performed a Wnt profiler array of deferoxamine-treated osteoblasts. Deferoxamine Wnt family member 5A Homo sapiens
2 Further analysis revealed a time- and dose-dependent induction of Wnt5a being up-regulated 2-fold after 48 h at 50 muM deferoxamine. Deferoxamine Wnt family member 5A Homo sapiens
3 Pathway analysis using specific inhibitors revealed that deferoxamine utilized the phosphatidylinositol-3-kinase and nuclear factor of activated T cell pathways to induce Wnt5a expression. Deferoxamine Wnt family member 5A Homo sapiens
4 Finally, we confirmed the requirement of Wnt5a in the deferoxamine-mediated osteoblast-promoting effects by analyzing the matrix mineralization of Wnt5a-deficient cells. Deferoxamine Wnt family member 5A Homo sapiens
5 Finally, we confirmed the requirement of Wnt5a in the deferoxamine-mediated osteoblast-promoting effects by analyzing the matrix mineralization of Wnt5a-deficient cells. Deferoxamine Wnt family member 5A Homo sapiens
6 The promoting effect of deferoxamine on matrix mineralization in wild-type cells was completely abolished in Wnt5a-/- cells. Deferoxamine Wnt family member 5A Homo sapiens
7 Thus, these data demonstrate that Wnt5a is critical for the pro-osteogenic effects of iron chelation using deferoxamine. Deferoxamine Wnt family member 5A Homo sapiens