Demineralized and decellularized bone extracellular matrix-incorporated electrospun nanofibrous scaffold for bone regeneration

Extracellular matrix (ECM)-based materials have been employed as scaffolds for bone tissue engineering, providing a suitable microenvironment with biophysical and biochemical cues for cell attachment, proliferation and differentiation. In this study, bone-derived ECM (bECM)-incorporated electrospun poly(epsilon-caprolactone) (PCL) (bECM/PCL) nanofibrous scaffolds were prepared and their effects on osteogenesis were evaluated in vitro and in vivo. The results showed that the bECM/PCL scaffolds promoted the attachment, spreading, proliferation and osteogenic differentiation of rat mesenchymal stem cells (MSCs), mitigated the foreign-body reaction, and facilitated bone regeneration in a rat calvarial critical size defect model. Thus, this study suggests that bECM can provide a promising option for bone regeneration.

Automated summary

In this study, bone-derived ECM-incorporated electrospun PCL nanofibrous scaffolds were prepared and evaluated for their effects on osteogenesis in vitro and in vivo. The results demonstrated that the bECM/PCL scaffolds promoted the attachment, proliferation, and osteogenic differentiation of MSCs, while mitigating the foreign-body reaction, ultimately facilitating bone regeneration. This study suggests that bECM can be a promising option for bone regeneration.