J Trace Elem Med Biol:铜与其生物相容性/抗菌活性之间的剂量-反应关系

2019-07-30 sunshine 译 MedSci原创

铜已被广泛用于生物材料的改性,因为它具有多功能的生物效应,如成骨,血管生成和抗菌活性。然而,目前尚不清楚不同的细胞系和细菌如何对不同浓度的Cu2 +产生反应,这对铜掺杂植入物的应用非常关键。本研究旨在探讨Cu2 +的剂量-反应关系及其体外生物学效应。使用大鼠骨髓间充质干细胞(rBMSCs),小鼠成骨细胞系(MC3T3-E1)和人脐静脉内皮细胞(HUVECs)评估细胞行为。使用金黄色葡萄球菌(金黄色

铜已被广泛用于生物材料的改性,因为它具有多功能的生物效应,如成骨,血管生成和抗菌活性。然而,目前尚不清楚不同的细胞系和细菌如何对不同浓度的Cu2 +产生反应,这对铜掺杂植入物的应用非常关键。

本研究旨在探讨Cu2 +的剂量-反应关系及其体外生物学效应。使用大鼠骨髓间充质干细胞(rBMSCs),小鼠成骨细胞系(MC3T3-E1)和人脐静脉内皮细胞(HUVECs)评估细胞行为。使用金黄色葡萄球菌(金黄色葡萄球菌)和大肠杆菌(大肠杆菌)用于评估细菌行为。

结果表明,HUVECs对铜离子的耐受性明显高于MC3T3-E1和rBMSCs。HUVEC,MC3T3-E1和HUVEC的铜的IC50值分别接近327.9μM,134.6μM和0.7μM。此外,有效抑制细菌生长的铜的阈值浓度为37μM。当浓度超过阈值时,抗菌活性可能会急剧增加。

总之,这些结果共同为铜掺杂生物材料在骨骼生长和重塑中的应用奠定了技术基础。

原始出处:

Li K, Xia C, et al., Dose-response relationships between copper and its biocompatibility/antibacterial activities. J Trace Elem Med Biol. 2019 Sep;55:127-135. doi: 10.1016/j.jtemb.2019.06.015. Epub 2019 Jun 19.

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    2019-10-26 bsmagic9140
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    2019-12-16 sunylz
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    2020-03-20 shanyongle
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