龙葵碱对人结肠癌鸡胚移植模型血管生成的影响  

Effects of Solanine on the human colon cancer in chicken embryo transplantation model angiogenesis

作　　者：张桃[1] 谢铭[1] 贺新媛[1] 杨雪峰[1] 

机构地区：[1]遵义医学院附属医院胃肠外科,贵州遵义563000

出　　处：《重庆医学》2015年第2期155-157,160,共4页Chongqing medicine

基　　金：贵州省卫生厅科学技术基金资助项目(gzwkj2012-1-112);遵义医学院中青年资金资助项目(院字[2009]号)

摘　　要：目的：建立人结肠癌鸡胚移植模型，研究龙葵碱对其血管生成的影响。方法将鸡胚分为对照组和低剂量组、中剂量组、高剂量组（均n＝10），将培养的人结肠癌细胞系HT‐29细胞株接种到鸡胚绒毛尿囊膜（CAM）上，通过立体显微镜、Image‐proplus6．0图像分析软件及免疫组织化学苏木精‐伊红（HE）染色法，观察移植瘤在CAM上血管生成的特点，及不同龙葵碱剂量对血管生成的影响。结果HT‐29细胞接种到CAM第3～5天，大量血管向瘤体集中，长入或跨越瘤体表面，肿瘤迅速生长。给药后第5天进行拍照，图像分析，定量计算血管新生面积明显低于对照组，且呈剂量依赖性，各组间差异有统计学意义（P＜0．01）。免疫组织化学检测表明不同剂量龙葵碱的微血管密度明显低于对照组，与血管新生面积相一致；ki‐67抗原表达指数逐渐下降，实验组低于对照组，且各组间差异有统计学意义（P＜0．01）。结论龙葵碱能明显抑制人结肠癌HT‐29细胞株诱导的血管生成，从而抑制肿瘤的生长，为抗肿瘤血管生成的治疗方面提供了重要依据。Objective To establish chicken embryo transplantation model of human colon cancer and to research the effect of so‐lanine on angiogenesis .Methods Cases with chicken embryos were divided into the low‐,mid‐and high dose solanine group and con‐trol group ,with 10 cases in each groups ,and then the cultured human colon cancer cell line HT‐29 cell lines were inoculated to the chicken embryo villus allantois membrane （CAM ） .We observed the characteristics of the transplanted tumor in CAM angiogenesis by the stereo microscope .Image analysis software of Image‐pro plus 6 .0 and immunohistochemical method were used to observe the effect of different dose of solanine on angiogenesis .Results HT‐29 cell lines were inoculated to CAM 3-5 days ,a large number of blood vessels concentrated in tumors ,growing into or acrossing the surface of tumors .While tumors also rapidly growed .We took photo on the 5th day after receiving medicine and did imaging analysis .Then we calculated the area of angiogenesis in experimental group ,which was significantly lower than that of the control group ,quantitatively in a dose‐dependent manner .There were signifi‐cant differences among the groups（P〈0 .01） .Microvascular density of 3 different dose of solanine was significantly lower than that of the control group by immunohistochemical method ;the expression of Ki‐67 antigen index decreased gradually ,which was highest in the control group ,and there were significant differences among the groups （P〈0 .01） .Conclusion Solanine could inhibit angio‐genesis induced by human colon cancer HT‐29 cell lines obviously ,thus inhibiting the growth of tumor and providing an important basis for the treatment of anti‐tumor angiogenesis .

关 键 词：龙葵碱 人结肠癌 HT-29细胞株 鸡胚绒毛尿囊膜 血管新生面积 微血管密度 

分 类 号：R285.5[医药卫生—中药学] R-332[医药卫生—中医学]