Osteogenic differentiation of mesenchymal stem cells is impaired by bone morphogenetic protein 7

Advances in Medical Sciences
Paweena Wongwitwichot, Jasadee Kaewsrichan

Abstract

Mesenchymal stem cells (MSCs) are multipotent adult stem cells and present in practically all tissues but originally identified within the bone marrow (BM). The differentiation potential of these cells is generally impaired when culturing in vitro for cell expansion. The aim of this study is to speedily increase the numbers of bone marrow derived mesenchymal stem cells (BM-MSCs) with substantially maintaining their differentiation potential in vitro and improving bone formation in vivo. BM-MSCs isolated from rats were sequentially cultured in α-MEM containing basic fibroblast growth factor (FGF2) and/or insulin to stimulate proliferation and osteogenic commitment, and in the medium with the addition of bone morphogenetic protein 2 (BMP2) and/or bone morphogenetic protein 7 (BMP7) to arouse differentiation. The expression of genes markedly associating the commitment and differentiation were investigated in vitro using real-time PCR technique and mineralization assay, while the capacity of inducing bone formation by the established conditions was determined in vivo using a rat model. The BM-MSCs greatly proliferated with active transcription of runx2 and osterix genes when induced by FGF2 and insulin. The in vitro mineralization ...Continue Reading

Citations

Apr 17, 2020·International Journal of Molecular Sciences·Sun Joo LeeJae-Han Jeon

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