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阿司匹林对结肠炎相关结直肠癌小鼠模型肿瘤细胞凋亡的影响
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李楠
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深圳市第三人民医院儿科 南京医科大学第二附属医院肿瘤科

叶英
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徐州医学院附属医院急诊ICU 南京医科大学第二附属医院肿瘤科

王娟
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南京医科大学第二附属医院肿瘤科 南京医科大学第二附属医院肿瘤科

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[1] 南京医科大学第二附属医院肿瘤科
[2] 深圳市第三人民医院儿科
[3] 徐州医学院附属医院急诊ICU
来源:
关键词:
阿司匹林;
结肠炎相关结直肠癌;
凋亡;
肿瘤发生;
D O I:
暂无
中图分类号:
R735.3 [肠肿瘤];
学科分类号:
100112 [医学生物化学与分子生物学];
摘要:
目的探讨阿司匹林对结肠炎相关结直肠癌(CAC)小鼠模型的肿瘤形成、肿瘤细胞凋亡以及肠道炎症的影响。方法将60只雄性Balb/c小鼠随机分为模型组、治疗组和对照组各20只。模型组和治疗组采用致癌剂氧化偶氮甲烷(AOM)联合致炎症试剂右旋糖酐硫酸钠(DSS)诱导建立小鼠CAC模型,治疗组从实验开始给予阿司匹林200mg/kg直至实验结束;对照组无任何处理。造模第80天,取结肠组织行病理学检测,采用TUNEL法检测肿瘤细胞的凋亡,ELISA法检测肿瘤坏死因子α(TNF-α)和髓过氧化物酶(MPO)的表达。结果治疗组肠道炎症评分、肿瘤数量、肿瘤直径、TNF-α及MPO表达分别为2.38±0.92、4.17±2.32、(3.18±2.07)mm、(39.69±7.27)pg/mg和(3.32±1.29)pg/mg,与模型组的2.5±0.93、6.33±3.16、(5.38±2.28)mm、(42.68±8.13)pg/mg和(3.56±1.24)pg/mg比较,差异均无统计学意义(P>0.05)。治疗组、模型组和对照组小鼠的凋亡率分别为(15.92±3.26)%、(7.31±1.27)%和(3.70±1.65)%,差异具有统计学意义;治疗组凋亡指数为1.7±0.38,显著高于模型组的0.95±0.21(P=0.01)。结论阿司匹林能够显著促进CAC小鼠模型结直肠癌细胞的凋亡,但对肠道炎症无明显影响,因而在CAC防治方面可能存在潜在的临床应用价值。
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页码:1062 / 1065
页数:4
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