青藤碱PLGA-TPGS纳米粒对HCa-F细胞在小鼠淋巴管内增殖及异位移植瘤的抑制作用研究
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篇名: 青藤碱PLGA-TPGS纳米粒对HCa-F细胞在小鼠淋巴管内增殖及异位移植瘤的抑制作用研究
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摘要: 目的:研究青藤碱乳酸羟基乙酸共聚物-水溶性维生素E(PLGA-TPGS)纳米粒(SPTN)对小鼠腹水型肝癌高淋巴管转移细胞HCa-F在小鼠淋巴管内增殖及异位移植瘤的抑制作用。方法:将HCa-F细胞悬液分别加入生理盐水、5-氟尿嘧啶溶液(FS)、青藤碱溶液(SS)、青藤碱PLGA纳米粒(SPN)和SPTN,使终质量浓度均为80 μg/ml,采用羧基荧光素琥珀酰亚胺酯(CFSE)标记;经小鼠一侧足垫注射各细胞悬液50 μl,每组15只,分别于3、6、9、12、24 h用荧光倒置显微镜观察上述悬液对HCa-F细胞在小鼠体内淋巴管内增殖的抑制作用。取小鼠分为正常对照组、空白PLGA-TPGS纳米粒(EPTN)组、生理盐水组、SPTN组、SPN组、SS组和FS组,每组10只,后6组小鼠建立荷HCa-F细胞的肝癌异位移植瘤模型,尾iv相应药物15 mg/kg,每日1次,连续给药10 d;检测血清中丙氨酸转氨酶(ALT)、天门冬氨酸转氨酶(AST)、γ-谷氨酰转肽酶(γ-GT)、白蛋白(ALB)和总胆红素(TBIL)的含量;取出实体瘤,称量瘤质量和瘤体积,计算抑瘤率。结果:对HCa-F细胞增殖的抑制作用强弱依次为SPTN>SPN>FS>SS>生理盐水。与生理盐水组比较,SPTN组、SPN组、SS组和FS组小鼠血清中ALT、AST、γ-GT、TBIL水平降低,ALB水平升高(P<0.05);SPTN组、SPN组和FS组小鼠的瘤体积增长量和瘤质量明显降低(P<0.05),抑瘤率依次为49.62%、40.53%、33.90%。结论:SPTN可抑制HCa-F细胞在小鼠淋巴管内的增殖,能改善荷HCa-F细胞小鼠肝癌异位移植瘤,且效果优于SPN和FS。
ABSTRACT: OBJECTIVE: To study the inhibitory effects of sinomenine (SIN)-loaded polylactic-co-glycolic acid-D-α-tocopherol polyethylene glycol 1000 succinate (PLGA-TPGS) nanoparticles (SPTN) on the proliferation of HCa-F cells in lymph tubes and ectopic transplantation tumors in mice. METHODS: HCa-F cell suspension were incubated with normal saline, 5-fluorouracil (FS), sinomenine solutions (SS), sinomenine PLGA nanoparticles (SPN) and SPTN, with concentration of 80 μg/ml. The cells were marked with CFSE, and then were injected with suspension 50 μl via one footpad of mice. Inhibitory effect of above suspensions on the proliferation of HCa-F in lymph tubes of mice was observed by fluorescence inverted microscope at 3, 6, 9, 12, 24 h (n=15). Mice were divided into normal control group, blank PLGA-TPGS nanoparticles (EPTN) group, normal saline group, SPTN group, SPN group, SS group and FS group with 10 mice in each group. The latter 5 groups were injected with relevant medicine 15 mg/kg, once a day, via tail vein for consecutive 10 days after the model of HCa-F cells-bearing ectopic transplantation tumor mice was established. The serum content of ALT, AST, γ-glutamyltransferase (γ-GT), ALB and T-BIL were determined; solid tumors were taken, measured and weighed, and the inhibitory rate of tumor was also calculated. RESULTS: The inhibitory effect of above solution on the proliferation of HCa-F cells in descending order was as follows: SPTN>SPN>FS>SS>normal saline. Compared with normal saline group, the serum levels of ALT, AST, γ-GT and TBIL of SPTN group, SPN group, SS group and FS group decreased, while ALB level increased (P<0.05); the amount of tumor volume increase and tumor weight in SPTN group, SPN group and FS group decreased significantly (P<0.05). The inhibitory rate of tumor in 3 groups were 49.62%, 40.53% and 33.90%. CONCLUSIONS: SPTN can inhibit the proliferation of HCa-F cells in lymph tubes of mice, and can improve HCa-F cells-bearing ectopic transplantation tumor in mice. It is better than SPN and FS.
期刊: 2016年第27卷第16期
作者: 王洪刚,高萌,张成鸿,徐静,孙艺平,徐红
AUTHORS: WANG Honggang,GAO Meng,ZHANG Chenghong,XU Jing,SUN Yiping,XU Hong
关键字: 青藤碱;乳酸羟基乙酸共聚物-水溶性维生素E;纳米粒;HCa-F细胞;淋巴管;异位移植瘤
KEYWORDS: Sinomenine; Polylactic-co-glycolic acid tocopherol polyethylene glycol 1000 succinate; Nanoparticles; HCa-F cells; Lymph tubes; Ectopic transplantation tumor
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