[1]王 凇,翁 勰,龚 伟,等. 热敏脂质体抗肿瘤药物改善肝肿瘤热消融疗效的动物实验[J].介入放射学杂志,2014,(06):506-510.
 WANG Song,WENG Xie,GONG Wei,et al. Using thermosensitive chemotherapy agent to improve the effect of radiofrequency ablation for liver tumors: an animal experiment[J].journal interventional radiology,2014,(06):506-510.
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 热敏脂质体抗肿瘤药物改善肝肿瘤热消融疗效的动物实验()

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《介入放射学杂志》[ISSN:1008-794X/CN:31-1796/R]

卷:
期数:
2014年06期
页码:
506-510
栏目:
实验研究
出版日期:
2014-07-05

文章信息/Info

Title:
 Using thermosensitive chemotherapy agent to improve the effect of radiofrequency ablation for liver tumors: an animal experiment
作者:
 王 凇 翁 勰 龚 伟 李荣杰 王延杰 梅兴国 杨 薇
Author(s):
 WANG Song WENG Xie GONG Wei LEE Jung- chieh WANG Yan- jie MEI Xing- guo YANG Wei.
 Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Ultrasound, Peking University Cancer Hospital & Institute, Beijing 100142, China
关键词:
 【关键词】 射频消融 肝肿瘤 热敏脂质体 抗肿瘤药物 联合治疗
文献标志码:
A
摘要:
 【摘要】 目的 探讨射频消融(RFA)联合抗肿瘤药物热敏脂质体长春瑞滨(TL?蛳 VIN)治疗肿瘤的病理机制,分析联合治疗对改善实验动物长期生存率的影响。方法 采用皮下种植H22肝腺癌模型的国产雄性ICR荷瘤小鼠入组本研究。分3阶段分别进行肿瘤坏死面积测量,分析治疗后肿瘤病理表现;测量瘤内药物浓度;以及对不同组治疗后生存率的比较。第1阶段,选取40只荷瘤小鼠随机接受5组不同治疗方案(每组8只)治疗后24 h取肿瘤切片,分别测量坏死面积,确认最佳热敏脂质体药物浓度;以及分析各组肿瘤治疗后的病理表现。第2阶段,选取13只荷瘤小鼠治疗后0.5 h取出肿瘤组织,测量瘤内药物浓度。第3阶段,选取32只荷瘤小鼠随机进入4组(每组8只),治疗后随访90 d绘制肿瘤生长曲线,比较各组小鼠肿瘤治疗后的生存率。结果 与单纯RFA组相比,TL?蛳 VIN显著增加RFA对肝肿瘤的破坏范围(P < 0.01),而游离长春瑞滨(free?蛳 VIN)联合RFA的肿瘤坏死面积与单纯RFA相似(P > 0.05)。TL?蛳 VIN药物浓度在10 mg/kg时可获得显著优于free?蛳 VIN的效果,为(341.8 ± 65.4)mm2比(225.3 ± 25.4)mm2(P < 0.01)。单纯RFA组消融区边缘坏死及变性细胞与正常肝组织交叉,界限不清;而联合治疗组消融区边缘变性细胞减少,与正常组织分界更清晰。RFA联合治疗中,TL?蛳 VIN在肿瘤内沉积效果显著增加,浓度约为free?蛳 VIN的10倍,为(1 156.5 ± 158.3)ng/ml比(194.5 ± 52.3)ng/ml(P = 0.005)。TL?蛳 VIN + RFA平均终点生存期最长,达(37.6 ± 20.1)d,优于free?蛳 VIN + RFA(23.3 ± 1.2)d及单独RFA组(23.4 ± 5.0)d,差异具有统计学意义(P < 0.05)。结论 应用新型药物载体——热敏脂质体长春瑞滨可以在加热状态下大量释放药物,提高瘤内浓度,增强与热消融协同作用,扩大坏死范围,并最终改善生存期,为RFA治疗提供了有效的辅助手段。

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备注/Memo

备注/Memo:
 (收稿日期:2014-02-24)
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