J4

• 基础医学 • 上一篇    下一篇

PLLA-PEG750纤维毡缓释紫杉醇对卵巢癌细胞SKOV3的增殖抑制作用

李春生1,刘铜军1,景遐斌2,陈学思2,徐效义2,于惠秋3   

  1. 1.吉林大学第一医院结直肠肛门外科,吉林 长春 130021;2. 中国科学院长春应用化学研究所,吉林 长春 130022;3. 吉林大学中日联谊医院康复科,吉林 长春 130033
  • 收稿日期:2007-06-26 修回日期:1900-01-01 出版日期:2008-07-28 发布日期:2008-07-28
  • 通讯作者: 于惠秋

Inhibitory effects of paclitaxel slowly released by PLLA-PEG750 ultrafine fibers on SKOV3 cell line

LI Chun-sheng1,LIU Tong-jun1,JING Xia-bin2,CHEN Xue-si2,XU Xiao-yi2,YU Hui-qiu3   

  1. 1.Department of Anorectal Surgery,First Hospital,Jilin University,Changchun 130021,China;2.Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China;3. Department of Rehabilitation,China -Japan Union Hospital,Jilin University,Changchun 130033,China
  • Received:2007-06-26 Revised:1900-01-01 Online:2008-07-28 Published:2008-07-28
  • Contact: YU Hui-qiu

摘要: 探讨担载紫杉醇纤维毡对卵巢癌细胞SKOV3的缓释效应及作用的有效性。方法:以聚左旋乳酸-聚乙二醇750(PLLA-PEG750)作为载体材料,采用电纺丝技术制备成载药率为2.5%紫杉醇纤维毡,以高效液相色谱法检测紫杉醇纤维毡药物释放情况。将其分为实验组(2.5%紫杉醇纤维毡组)、纯药组(紫杉醇作用于SKOV3组)及对照组(不加药同期培养的SKOV3组)3个组,采用MTT法筛选并计算紫杉醇纤维毡对卵巢癌SKOV3的抑瘤率,采用流式细胞术对实验组进行细胞凋亡及细胞周期分析。结果:药物释放基本符合零级动力学;担载紫杉醇纤维毡体外抑瘤率达94.59%±1.16%,接近或达到纯药组;流式细胞术表明,实验组作用于SKOV3 48 h后, G2/M 期 细胞百分比明显增加,48 h实验组凋亡率为20.02%±0.96%,而对照组凋亡率为8.09%±0.54%,两者比较差异具有显著性 (P<0.01) 。结论:担载紫杉醇纤维毡具有明显缓释效应,体外作用于卵巢癌细胞SKOV3能够有效抑制肿瘤细胞增殖,阻止细胞周期进程。

关键词: 聚左旋乳酸-聚乙二醇750, 卵巢肿瘤, 缓释效应

Abstract: To investigate the delayed release effect and the availability of the paclitaxel-loaded PLLA-PEG750 ultrafine fibers on ovarian cancer SKOV3 cell line. Methods Taking PLLA-PEG750 as the carrier,paclitaxel was well incorporated and dispersed uniformly in biodegradable PEG-PLLA750 fibers by using electrospinning method. The release of the drug was determined by high performance liquid chromatography.They were divided into three groups:experimental group(2.5% paclitaxel-loaded ultrafine fibers group),pure drug group(paclitaxel on SKOV3 group),control group(SKOV3 in the same culture period group).Using MTT assay,the inhibitory rate of experimental group to the SKOV3 was sieved out and calculated.The apoptosis of SKOV3 cells was analyzed by flow cytometry. Results The release of the drug corresponded zero order kinetics.The inhibitory rate of the paclitaxel-loaded ultrafine fibers to SKOV3 in vitro was 94.59%±1.16%,and approached or achieved the level in pure drug group. According to the result of flow cytometry,the percentage of G2/M of SKOV3 in experimental group 48 h after treatment was significantly up-regulated,the apoptotic rate in experimental group (20.02%±0.96%) was significantly higher than that in control group (8.09%±0.54%) (P<0.01). Conclusion The paclitaxel-loaded ultrafine fibers have conspicuous delayed release effect.It can inhibit the growth of SKOV3 cells and block the process of G2/M period in vitro.

Key words: PLLA-PEG750, ovarian neoplasms, delayed release effect

中图分类号: 

  • R979.1