摘要
目的观察雷公藤内酯醇联合顺铂对荷膀胱癌T24细胞裸鼠免疫功能及血管生长作用的影响。方法建立荷膀胱癌T24细胞小鼠模型18只,随机分为对照组、顺铂组、联合组各6只,分别腹腔注射5d0.9%氯化钠溶液、顺铂、雷公藤内酯醇+顺铂。采用流式细胞仪检测腹腔巨噬细胞异硫氰酸荧光素(FITC)-右旋糖酐(dexran)阳性率,采用酶联免疫吸附试验法(ELISA)检测腹腔巨噬细胞白细胞介素-1(IL-1)、肿瘤坏死因子-α(TNF-α)表达水平,采用免疫组织化学染色法检测荷瘤裸鼠肿瘤组织的微血管密度(MVD)、血管内皮生长因子(VEGF)、碱性成纤维细胞生长因子(bFGF)的表达水平。结果巨噬细胞吞噬能力:联合组小鼠腹腔巨噬细胞FITC-dexran、CD11b.FITC、CD68-FITC阳性率明显高于顺铂组[(11.74±1.25)%比(7.24±0.84)%,(33.33±3.46)%比(21.84±2.45)%,(33.89±4.12)%比(20.52±2.32)%,t=9.639~7.319,P〈0.05];免疫功能:联合组IL-1、TNF-α表达水平明显高于顺铂组[(40.92±3.86比26.05±3.01)pg/ml,(55.78±6.25比38.42±5.26)pg/m1(t=5.201~7.441,P〈0.05];血管生长因子:联合组VEGF、bFGF、MVD表达水平明显低于顺铂组(1.24±0.48比1.88±0.52,0.88±0.43比1.51±0.56,3.11±1.49比8.15±3.00,t=2.186~3.686。P〈0.05)。结论雷公藤内酯醇联合顺铂能够提高荷膀胱癌T24细胞小鼠腹腔巨噬细胞的吞噬功能及免疫功能,下调VEGF和bFGF的表达水平,抑制肿瘤细胞的生长增殖。
Objective To Study the effect of triptolide combined with cisplatin on immune function and angiogenesis of bladder cancer (T24) cells - bearing nude mice. Methods Eighteen bladder cancer (T24) cells -bearing nude mice were divided into control group, cisplatin group, and combination group, respectively given intraperitoneal injection of 0. 9% sodium chloride solution, eisplatin, and triptolide ± eisplatin. Flow eytometry was used to detect fluoresceine isothiocyanate ( FITC ) - dexran positive rate of abdominal macrophages, enzyme linked immunosorbent assay (ELISA) to determine interleukin (IL) -1 and tumor necrosis factor-ct (TNF- α) expression levels in the abdominal macrophages, and immunohis- tochemieal staining to examine vascular endothelial growth factor (VEGF) , basic fibroblast growth factor (bFGF) and microvessel density (MVD) expression levels. Results The positive rate of FITC - dexran, CD11 b- FITC, and CD68 -FITC in abdominal macrophages of combination group was significantly higher than that in eisplatin group [ ( 11.74 ± 1.25) % vs. (7.24 ± 0. 84) %, (33.33 ± 3.46) % vs. (21.84 ± 2.45)%, and (33.89 ±4. 12)% vs. (20. 52 ±2. 32)%1 (t=9.639-7.319,P〈0.05). The IL-1 and TNF -α expression levels in combination group were significantly higher than those in cisplatin group [(40.92±3.86) vs. (26.05 ±3.01) pg/ml, and (55.78 ±6.25) vs. (38.42 ±5.26) pg/ml] (t= 5. 201 -7.441 ,P 〈0. 05). The VEGF, bFGF, and MVD expression levels in combination group were sig- nificantly lower than those in cisplatin group ( 1.24 ± 0.48 vs. 1.88 ± 0. 52, 0. 88 ± 0. 43 vs. 1.51 ± 0.56, and 3.11±1. 49 vs. 8.15 ±3.00) (t=2.186-3.686,P〈0.05).Conclusion Triptolide com- bined with eisplatin can improve phagocytosis function and immune function of abdominal macrophages in bladder cancer (T24) cells - bearing nude mice, and reduce VEGF and bFGF expression levels, and then inhibit growth and proliferation of tumor cells.
出处
《中华实验外科杂志》
CAS
CSCD
北大核心
2016年第6期1448-1450,共3页
Chinese Journal of Experimental Surgery
关键词
膀胱肿瘤
雷公藤内酯醇
顺铂
免疫功能
血管生长因子
Urinary bladder neoplasms
Triptolide
Cisplatin
Immune function
Vascular growth factors