首页> 外文会议>12th Mediterranean conference on medical and biological engineering and computing 2010 >High frequency mechanical vibrations stimulate the bone matrix formation in hBMSCs (human Bone Marrow Stromal Cells)
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High frequency mechanical vibrations stimulate the bone matrix formation in hBMSCs (human Bone Marrow Stromal Cells)

机译:高频机械振动会刺激hBMSC(人类骨髓基质细胞)中的骨基质形成

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The aim of this work is to test the effects of a specific mechanical stimulation (Low Amplitude, high Frequency Vibrations) on the bone matrix formation of hBMSCs. Previous studies demonstrated that chemical culture conditions could influence the differentiation of hBMSCs toward bone: by plating the cells in appropriate osteogenic culture medium hBMSCs differentiate into osteoblasts [1-3]. In our experiment the cells were treated for 21 and 40 days by vibrating the wells for 45 minutes a day at a working frequency of 30 Hz. In order to separate the effects of the induction toward bone caused by the osteogenic culture medium and the effects of the high frequency vibrations, we divided the cells in four samples: in normal medium with or without mechanical treatment and in osteogenic medium with or without mechanical treatment. Afterwards, in order to measure the level of calcium deposition and consequently, the formation of bone matrix, the Alizarin Red assay was performed. The results express a strong increase in the deposition calcium for the extracellular matrix for the vibrated samples with respect to the non-mechanically treated ones for the 40 days treatment.
机译:这项工作的目的是测试特定的机械刺激(低振幅,高频振动)对hBMSCs骨基质形成的影响。先前的研究表明化学培养条件可能会影响hBMSC向骨的分化:通过将细胞铺板在合适的成骨培养基中,hBMSC分化为成骨细胞[1-3]。在我们的实验中,将细胞以30 Hz的工作频率每天振动45分钟,将细胞处理21天和40天。为了区分成骨培养基对骨骼的诱导作用和高频振动的作用,我们将细胞分为四个样本:在有或没有机械处理的正常培养基中,在有或没有机械处理的成骨培养基中治疗。此后,为了测量钙沉积的水平,进而测量骨基质的形成,进行了茜素红分析。结果表明,与经过40天处理的未经机械处理的样品相比,振动样品的细胞外基质的沉积钙含量大大增加。

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