Effect of lactoferrin-embedded collagen membrane on osteogenic differentiation of human osteoblast-like cells(CELL AND TISSUE ENGINEERING)

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Lactoferrin (LF) has the ability to promote the proliferation and differentiation of osteoblasts, suggesting its potential utility as an osteogenic growth factor in bone tissue engineering. However, this type of application requires improved drug delivery system (DDS) technology at the target site. In this study, we report enhanced calcium deposition and alkaline phosphatase (ALP) activity using the type I collagen membrane during osteogenic differentiation of MG63 human osteoblast-like cells, indicating that type I collagen not only acts as a site for calcification but also promotes the expression of differentiated phenotypes. We also used this membrane as a drug delivery carrier for bovine LF. Approximately 27% of LF embedded on the type I collagen membrane was released within the first hour in cell-free condition. This initial burst release of LF was followed by a slower release from the collagen membrane. Bovine LF embedded in the type I collagen membrane promoted its calcification during osteogenic differentiation of MG63 cells without the loss of LF bioactivity. Taken together, ALP activity and osteocalcin production were enhanced in the MG63 cells plated on the LF-embedded collagen membrane, suggesting that LF incorporated in the collagen membrane promoted bone-like tissue formation by MG63 cells. These observations suggest that the type I collagen membrane is useful as a drug delivery carrier for LF in bone tissue engineering.
公益社団法人日本生物工学会の論文

Effect of lactoferrin-embedded collagen membrane on osteogenic differentiation of human osteoblast-like cells(CELL AND TISSUE ENGINEERING)

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