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21 February 2020 : Laboratory Research  

Overexpression of Bone Morphogenetic Protein-1 Promotes Osteogenesis of Bone Marrow Mesenchymal Stem Cells In Vitro

Zhongping Su1BCEF, Lisheng He1BCE, Hongtao Shang1CEF, Taiqiang Dai1CEF, Fangfang Xu1EF, Jinlong Zhao1AD*

DOI: 10.12659/MSM.920122

Med Sci Monit 2020; 26:e920122


BACKGROUND: Osteogenesis of bone marrow mesenchymal stem cells (BMSCs) is an important research topic in the application of bone tissue engineering. Bone morphogenetic protein-1 (BMP-1) is important in bone formation and stability, but its effects on the osteogenesis of BMSCs are unclear. This study aimed to investigate the association of BMP-1 with the osteogenic capacity of BMSCs.

MATERIAL AND METHODS: Primary rabbit BMSCs were cultured and divided into a BMP-1-overexpressing group, a Green Fluorescent Protein-expressing (GFP) group, and a Control group. The transfection efficiency of BMP-1 was tested by Western blotting. Cell viabilities, alkaline phosphatase (ALP) activities, Ca2+ concentrations, and gross examinations of BMSC sheets were examined at different times. The osteogenic marker collagen I was assessed by immunohistochemical analysis.

RESULTS: The cell viability, ALP activity, and Ca2+ content of the BMP1-overexpressed group were significantly enhanced compared with the GFP group and Control group. Immunohistochemistry staining results showed that BMP-1 promoted the expression of type I collagen in BMSCs sheets.

CONCLUSIONS: Our results suggest that the overexpression of BMP-1 can promote the osteogenesis of BMSCs and provides an improved method of cell-based tissue engineering.

Keywords: Alkaline Phosphatase, Bone Morphogenetic Protein 1, Immunohistochemistry, Collagen Type I, Mesenchymal Stem Cells, Osteogenesis, Transfection

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750