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Effects of tricalcium phosphate in polycaprolactone scaffold for mesenchymal stem cell-based bone tissue engineering

机译:磷酸三钙在聚己内酯支架中对间充质干细胞基骨组织工程的影响

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摘要

Polycaprolactone (PCL) - tricalcium phosphate (TCP) is an established composite material for bone tissue engineering. However, the effects of TCP inclusion in PCL for cell attachment, viability, proliferation and differentiation have not been defined. In this study, PCL and PCL-TCP scaffolds are seeded with human fetal mesenchymal stem cells (hfMSC), cultured in osteogenic differentiation medium, and cell attachment, viability, cellular proliferation, differentiation and extracellular mineral depositions were compared. Both materials allowed for good cell attachment and viability, while the final cellularity in PCL-TCP scaffolds was 1.25-fold higher than PCL scaffolds. Mineralisation on both scaffolds was similar, after correcting for the initial calcium in the PCL-TCP scaffolds. In conclusion, the addition of 20% TCP into the macroporous PCL scaffold resulted in 1.25-fold higher cellularity, which may be advantageous for transplantation purposes.
机译:聚己内酯(PCL) - 磷酸三钙(TCP)是骨组织工程的已建立的复合材料。 然而,尚未定义TCP包含在PCL中的TCP夹杂物的影响,尚未确定用于细胞附着,活力,增殖和分化。 在本研究中,将PCL和PCL-TCP支架与人胎间充质干细胞(HFMSC)接种,在骨质发生分化培养基中培养,并比较了细胞附着,活力,细胞增殖,分化和细胞外矿物沉积。 两种材料都允许良好的细胞附着和活力,而PCL-TCP支架中的最终细胞性比PCL支架高1.25倍。 在校正PCL-TCP支架中的初始钙,两支架上的矿化是相似的。 总之,将20%TCP加入大孔PCL支架中产生1.25倍的细胞性,这对于移植目的可能是有利的。

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