Int J Nanomed:rGO-AgNPs联合TSA可更有效治疗卵巢癌

2017-11-01 MedSci MedSci原创

最近,纳米医学领域在疾病的预防、诊断和治疗方面是研究的热点。联合两种不同工作机制的分子进行联合治疗似乎是最有效的,可降低耐药性和不可忍受的副作用的发生的可能性。基于这一考虑,本研究旨在研究联合还原型石墨烯氧化物-银纳米粒子(rGO-AgNPs)和曲古抑菌素A(TSA)在人类卵巢癌细胞(SKOV3)中的治疗作用。使用称为番茄红素的生物分子合成rGO-AgNPs,并通过各种分析技术对其进行表征。使用各

最近,纳米医学领域在疾病的预防诊断和治疗方面是研究的热点。联合两种不同工作机制的分子进行联合治疗似乎是最有效的,可降低耐药性和不可忍受的副作用的发生的可能性。基于这一考虑,本研究旨在研究联合还原型石墨烯氧化物-银纳米粒子(rGO-AgNPs)和曲古抑菌素A(TSA)在人类卵巢癌细胞(SKOV3)中的治疗作用。

使用称为番茄红素的生物分子合成rGO-AgNPs,并通过各种分析技术对其进行表征。使用各种细胞测定,如细胞活力、细胞毒性和免疫荧光分析在SKOV3细胞中研究rGO-Ag和TSA的组合效应。

结果显示,AgNPs均匀分布在石墨烯片表面,平均粒径在10〜50nm之间。rGO-Ag和TSA以剂量依赖的方式抑制细胞活力。低浓度rGO-Ag和TSA的组合可明显影响细胞活力,且增加丙二醛的水平和降低谷胱甘肽的水平可增加细胞毒性,并可引起线粒体功能障碍。此外,rGO-Ag和TSA的组合对DNA断裂和双链断裂的作用更明显,最终诱导细胞凋亡。

总之,本研究首次发现,与单独使用rGO-Ag或单独使用TSA相比,rGO-Ag联合TSA作用于TSOV3细胞可引起潜在的细胞毒性,且可诱导更多的的细胞死亡,包括活性氧生成,线粒体功能障碍和DNA损伤。因此,这种联合化疗可能用于不适合放射治疗或手术治疗的晚期癌症患者,并有助于克服肿瘤耐药并阻止疾病进展。

原始出处:

Xi-Feng Zhang, Feng-Hua Huang, et al., Novel biomolecule lycopene-reduced graphene oxide-silver nanoparticle enhances apoptotic potential of trichostatin A in human ovarian cancer cells (SKOV3). Int J Nanomedicine. 2017; 12: 7551–7575. Published online 2017 Oct 13. doi: 10.2147/IJN.S144161

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    2018-07-07 hunizi005
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