Vascularization of bioengineered bone tissue constructs remains a challenging problem of regenerative medicine. Spheroids generated in 3D culture of adipose-derived stromal cells supplemented with inducing factors demonstrate stable characteristics and express of mesenchymal, endothelial, and osteoblasts markers, and represent a prototype of vascularized microtissue. Adipose-derived stromal cells spheroids induced to both angio- and osteogenic differentiation can be used in development of new innovative technologies for in vitro fabrication of vascularized bioequivalents for repair of large bone defects.
Keywords: adipose-derived stromal cells; bioequivalent; osteogenesis; spheroid; vasculogenesis.