Fig. 1From: Potential Osteoinductive Effects of Hydroxyapatite Nanoparticles on Mesenchymal Stem Cells by Endothelial Cell InteractionIllustration of HAPs/hWJ-MSCs indirect co-culture mediated by HUVECs. Abbreviations: HAPs hydroxyapatite particles, hWJ-MSCs human umbilical cord Wharton’s jelly-derived mesenchymal stem cells, HUVECs human umbilical vein endothelial cellsBack to article page