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Magnetic bioactive glasses/Cisplatin loaded-chitosan (CS)-grafted- poly (ε-caprolactone) nanofibers against bone cancer treatment
Carbohydrate Polymers ( IF 11.2 ) Pub Date : 2021-01-22 , DOI: 10.1016/j.carbpol.2021.117680
Zahra Amini , Sam Shekofte Rudsary , Seyed Sadegh Shahraeini , Babak Faraji Dizaji , Pouya Goleij , Ameneh Bakhtiari , Mohammad Irani , Fariborz Sharifianjazi

The bioactive glasses (BGs)/Cisplatin and magnetic bioactive glasses (MBGs)/Cisplatin were doped into the chitosan (CS)-grafted- poly (ε-caprolactone) (PCL) nanofibers for controlled release of Cisplatin under various pH values and temperatures. The simultaneous effect of chemotherapy and hyperthermia was investigated against MG-63 osteosarcoma cells by treating of cells with Cs-g-PCL/MBGs/Cisplatin under an alternating magnetic field. The synthesized nanofibers were characterized using XRD, FTIR, 1H NMR, SEM, and EDX analysis. The bioactivity, and drug loading efficiency of fibers were investigated. There was no initial burst release of Cisplatin from BGs/Cisplatin and MBGs/Cisplatin loaded Cs-g-PCL/MBGs nanofibers and the Cisplatin release rate was accelerated under pH of 5.5 and temperature of 43 °C compared with physiological condition. The apoptotic/necrotic effect indicated that 100 μg mL−1 nanofibers was optimum for killing of MG-63 cells. The future researches could be focused on the application of nanofibers as an implantable device next to a bone tumor for bone cancer therapy in vivo.



中文翻译:

磁性生物活性玻璃/顺铂负载壳聚糖(CS)接枝的聚(ε-己内酯)纳米纤维对骨癌的治疗

将生物活性玻璃(BGs / Cisplatin)和磁性生物活性玻璃(MBGs / Cisplatin)掺杂到壳聚糖(CS)接枝的聚(ε-己内酯)(PCL)纳米纤维中,以在各种pH值和温度下控制顺铂的释放。通过在交变磁场下用Cs-g-PCL / MBGs /顺铂处理细胞,研究了化学疗法和热疗对MG-63骨肉瘤细胞的同时作用。使用XRD,FTIR,1对合成的纳米纤维进行表征1 H NMR,SEM和EDX分析。研究了纤维的生物活性和载药效率。从BGs / Cisplatin和MBGs / Cisplatin负载的Cs-g-PCL / MBGs纳米纤维中没有最初的顺铂突然释放,并且与生理条件相比,在5.5的pH和43°C的温度下,顺铂的释放速率得以加快。细胞凋亡/坏死效应表明100μgmL -1纳米纤维最适合杀死MG-63细胞。未来的研究可能集中在纳米纤维作为可植入装置的应用中,该植入装置是用于体内骨癌治疗的毗邻骨肿瘤的装置。

更新日期:2021-01-29
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