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木瓜总黄酮抗肿瘤活性研究
被引:49
作者
:
论文数:
引用数:
h-index:
机构:
刘爱华
田慧群
论文数:
0
引用数:
0
h-index:
0
机构:
三峡大学医学院
田慧群
覃晓琳
论文数:
0
引用数:
0
h-index:
0
机构:
三峡大学医学院
覃晓琳
论文数:
引用数:
h-index:
机构:
覃玉娥
机构
:
[1]
三峡大学医学院
来源
:
中国药房
|
2014年
/ 25卷
/ 07期
关键词
:
木瓜总黄酮;
免疫共刺激分子程序性死亡因子;
免疫共刺激分子程序性死亡因子配体;
抗肿瘤;
D O I
:
暂无
中图分类号
:
R285.5 [中药实验药理];
学科分类号
:
100806
[中药药理学]
;
摘要
:
目的:研究木瓜总黄酮抗肿瘤活性。方法:通过乙醇-正丁醇萃取方法提取木瓜总黄酮;通过分子药物筛选模型、酶联免疫法检测木瓜总黄酮对免疫共刺激分子程序性死亡因子(PD)-1与其配体(PD-L1)结合的抑制作用。通过H22肿瘤细胞模型小鼠,观察木瓜总黄酮对模型小鼠体内肿瘤体积与存活时间的影响;流式细胞仪测定小鼠腹水中肿瘤细胞及淋巴细胞表面相关分子的表达。结果:正丁醇馏分中木瓜总黄酮占85%。木瓜总黄酮具有抑制PD-1和PD-L1结合的作用,且抑制效率具有剂量依赖性。木瓜总黄酮在复制模型10 d后对模型小鼠体内肿瘤有明显抑制作用;对S180细胞表面PD-L1表达具有明显抑制作用,对体内淋巴细胞侵润有明显增强作用。结论:木瓜总黄酮可以抑制PD-1与PD-L1的结合,同时可降低肿瘤细胞表面PD-L1的表达从而促进机体对肿瘤的免疫应答,最终达到抑制肿瘤生长,提高肿瘤鼠存活率的作用。
引用
收藏
页码:599 / 601
页数:3
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