临床神经外科杂志
臨床神經外科雜誌
림상신경외과잡지
JOURNAL OF CLINICAL NEUROSURGERY
2014年
6期
430-434,439
,共6页
张岩松%王新法%罗正祥%姜志峰%赵鹏来%李军%丁一
張巖鬆%王新法%囉正祥%薑誌峰%趙鵬來%李軍%丁一
장암송%왕신법%라정상%강지봉%조붕래%리군%정일
辣椒碱%纳米微球%血-脑屏障%胶质瘤
辣椒堿%納米微毬%血-腦屏障%膠質瘤
랄초감%납미미구%혈-뇌병장%효질류
capsaicin%nanoparticle%blood-brain barrier%glioma
目的:探讨聚己内脂-聚乙二醇二嵌段共聚物( mPEG-PCL)制备的辣椒碱纳米微球的理化性质,通过实验评价其抗胶质瘤效果。方法通过开环聚合法和溶剂分散法制备负载辣椒碱的纳米微球,应用负载荧光素纳米粒子的肿瘤细胞摄取实验以及辣椒碱纳米微球的细胞毒性实验。结果实验显示载药微球具有缓释特性,细胞可通过胞吞作用将纳米微球摄入,负载NIR-797纳米微球可以很好地透过血-脑屏障,辣椒碱纳米微球对U251细胞的生长有明显的抑制作用。结论 mPEG-PCL为载体的辣椒碱纳米微球能够有效抑制胶质瘤细胞增殖,为脑胶质瘤药物治疗提供了一条极有前途的治疗途径。
目的:探討聚己內脂-聚乙二醇二嵌段共聚物( mPEG-PCL)製備的辣椒堿納米微毬的理化性質,通過實驗評價其抗膠質瘤效果。方法通過開環聚閤法和溶劑分散法製備負載辣椒堿的納米微毬,應用負載熒光素納米粒子的腫瘤細胞攝取實驗以及辣椒堿納米微毬的細胞毒性實驗。結果實驗顯示載藥微毬具有緩釋特性,細胞可通過胞吞作用將納米微毬攝入,負載NIR-797納米微毬可以很好地透過血-腦屏障,辣椒堿納米微毬對U251細胞的生長有明顯的抑製作用。結論 mPEG-PCL為載體的辣椒堿納米微毬能夠有效抑製膠質瘤細胞增殖,為腦膠質瘤藥物治療提供瞭一條極有前途的治療途徑。
목적:탐토취기내지-취을이순이감단공취물( mPEG-PCL)제비적랄초감납미미구적이화성질,통과실험평개기항효질류효과。방법통과개배취합법화용제분산법제비부재랄초감적납미미구,응용부재형광소납미입자적종류세포섭취실험이급랄초감납미미구적세포독성실험。결과실험현시재약미구구유완석특성,세포가통과포탄작용장납미미구섭입,부재NIR-797납미미구가이흔호지투과혈-뇌병장,랄초감납미미구대U251세포적생장유명현적억제작용。결론 mPEG-PCL위재체적랄초감납미미구능구유효억제효질류세포증식,위뇌효질류약물치료제공료일조겁유전도적치료도경。
Objective To explore the physiochemical characteristics of the capsaicin-loaded nanoparticles prepared by methoxy polyethylene glycol-poly ( caprolactone ) ( mPEG-PCL ) amphilic block copolymer, and to evaluate the ability of the capsaicin-loaded nanoparticles to inhibits the human glioblastoma U251 cells growth.Methods mPEG-PCL amphilic block copolymer was synthesized using the ring-opening polymerization method, and the capsaicin-loaded nanoparticles were prepared with the solvent diffusion method.The uptake of nanoparticles in the glioma cells and its ability to inhibit cell proliferation were tested in human glioblastoma U251 cells.Results In vitro drug release assay revealed that the capsaicin-loaded nanoparticles presented slow-release characteristics.The NIR-797 isothiocyanate-loaded nanoparticles was found to cross the blood-brain barrier.In addition, the capsaicin-loaded nanoparticle showed a remarkable inhibition on the growth of U251 cells.Conclusions The capsaicin-loaded nanoparticles can provide an extremely promising approach for chemotherapy of gliomas.