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The functional curcumin liposomes induce apoptosis in C6 glioblastoma cells and C6 glioblastoma stem cells in vitro and in animals

机译:功能性姜黄素脂质体在体外和动物中诱导C6胶质母细胞瘤细胞和C6胶质母细胞瘤干细胞凋亡

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摘要

Glioblastoma is a kind of malignant gliomas that is almost impossible to cure due to the poor drug transportation across the blood–brain barrier and the existence of glioma stem cells. We prepared a new kind of targeted liposomes in order to improve the drug delivery system onto the glioma cells and induce the apoptosis of glioma stem cells afterward. In this experiment, curcumin was chosen to kill gliomas, while quinacrine was used to induce apoptosis of the glioma stem cells. Also, p-aminophenyl-α-D-mannopyranoside could facilitate the transport of liposomes across the blood–brain barrier and finally target the brain glioma cells. The cell experiments in vitro indicated that the targeted liposomes could significantly improve the anti-tumor effects of the drugs, while enhancing the uptake effects, apoptosis effects, and endocytic effects of C6 glioma cells and C6 glioma stem cells. Given the animal experiments in vivo, we discovered that the targeted liposomes could obviously increase the survival period of brain glioma-bearing mice and inhibit the growth of gliomas. In summary, curcumin and quinacrine liposomes modified with p-aminophenyl-α-D-mannopyranoside is a potential preparation to treat brain glioma cells and brain glioma stem cells.
机译:胶质母细胞瘤是一种恶性神经胶质瘤,由于穿过血脑屏障的药物运输不良以及神经胶质瘤干细胞的存在,几乎无法治愈。我们制备了一种新型的靶向脂质体,以改善向神经胶质瘤细胞的药物递送系统并随后诱导神经胶质瘤干细胞的凋亡。在该实验中,选择姜黄素杀死神经胶质瘤,而奎纳克林则用于诱导神经胶质瘤干细胞的凋亡。另外,对氨基苯基-α-D-甘露吡喃糖苷可以促进脂质体穿过血脑屏障的转运,并最终靶向脑神经胶质瘤细胞。体外细胞实验表明,靶向脂质体可以显着提高药物的抗肿瘤作用,同时增强C6胶质瘤细胞和C6胶质瘤干细胞的摄取,凋亡和内吞作用。通过体内动物实验,我们发现靶向脂质体可以明显增加脑胶质瘤小鼠的生存期,并抑制胶质瘤的生长。总之,用对氨基苯基-α-D-甘露吡喃糖苷修饰的姜黄素和奎纳克林脂质体是治疗脑胶质瘤细胞和脑胶质瘤干细胞的潜在制剂。

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