Hum Cell:RFB中的三维循环培养可用于形成混合生物人造骨组织

2018-10-07 MedSci MedSci原创

在颌骨缺损患者的牙种植体治疗之前,需要进行骨移植。目前,自体骨移植是患者的一大负担。然而,单独使用骨填充剂不可能为植体形成足够的骨量基础。因此,需要制备含有成骨细胞和破骨细胞的杂交人造骨组织。 在该研究中,研究人员将小鼠MC3T3-E1前成骨细胞和人胚胎来源的成骨细胞系hFOB1.19在径向流动生物反应器(RFB)中培养以形成填充有β-磷酸三钙(β-TCP)或羟基磷灰石(HA)的多孔珠的三维

在颌骨缺损患者的牙种植体治疗之前,需要进行骨移植。目前,自体骨移植是患者的一大负担。然而,单独使用骨填充剂不可能为植体形成足够的骨量基础。因此,需要制备含有成骨细胞和破骨细胞的杂交人造骨组织。

在该研究中,研究人员将小鼠MC3T3-E1前成骨细胞和人胚胎来源的成骨细胞系hFOB1.19在径向流动生物反应器(RFB)中培养以形成填充有β-磷酸三钙(β-TCP)或羟基磷灰石(HA)的多孔珠的三维人造骨-临床上用作骨填充剂-作为细胞培养载体。

结果显示,在生长培养基中进行循环培养最初10-12天时,与具有β-TCP珠的培养物相比,具有HA珠的培养物中葡萄糖消耗增加。当在培养期的后半期在分化培养基中培养时,HA珠培养的培养物中葡萄糖消耗降低。DNA芯片分析表明,填充有HA珠的三维培养物中骨生成快速,并且在具有β-TCP珠的培养物中部分分化成成骨细胞。在MC3T3-E1细胞的生长过程中,维生素A代谢也被激活,维甲酸的合成和降解增强,同一过程的代谢在三维培养的分化结束时降低。

综上所述,该研究结果表明,RFB中的三维循环培养可用于形成混合生物人造骨组织。

原始出处:

Nomoto H, Maehashi H, et al., Bio-artificial bone formation model with a radial-flow bioreactor for implant therapy-comparison between two cell culture carriers: porous hydroxyapatite and β-tricalcium phosphate beads. Hum Cell. 2018 Oct 1. doi: 10.1007/s13577-018-0218-x.

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    2019-03-02 仁心济世

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    2019-06-13 diushouji

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