消痰和胃方对胃癌前病变大鼠细胞凋亡的影响
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摘要:目的 观察消痰和胃方对胃癌前病变大鼠胃黏膜细胞Caspase-3表达及凋亡指数的影响,探讨该方干预胃癌前病变的机制。方法 采用化学干预为主的多因素造模法制作胃癌前病变大鼠模型。实验大鼠随机分为正常组、模型组、维酶素组、消痰和胃方组,各组给予相应药物灌胃。干预6周后,免疫组化检测大鼠胃黏膜细胞Caspase-3的表达,TUNEL法检测大鼠胃黏膜细胞凋亡指数。结果 与正常组比较,模型组胃黏膜细胞Caspase-3水平和凋亡指数明显降低(P<0.05);与模型组比较,消痰和胃组和维酶素组胃黏膜细胞Caspase-3水平和凋亡指数明显升高(P<0.05),且消痰和胃组明显优于维酶素组(P<0.05)。结论 消痰和胃方可能通过上调Caspase-3的表达促进胃癌前病变细胞凋亡,从而达到防治胃癌前病变的作用。
关键词:胃癌前病变;消痰和胃方;凋亡指数;半胱氨酸天冬氨酸蛋白酶-3;大鼠
DOI:10.3969/j.issn.1005-5304.2017.04.014
中图分类号:R285.5 文献标识码:A 文章编号:1005-5304(2017)04-0054-03
Effects of Xiaotan Hewei Formula on Cell Apoptosis of Precancerous Lesions of Gastric Carcinoma Rats ZHANG Xuan, XU Jing-yu, SUN Da-zhi, QIN Zhi-feng, LI Yong-jin, SHI Jun, TANG Ji-gui, ZHANG Ying-cheng, WEI Pin-kang (Department of Traditional Chinese Medicine, Changzheng Hospital Affiliated to Second Military Medical University, Shanghai 200003, China)
Abstract: Objective To investigate the effects of Xiaotan Hewei Formula on the Caspase-3 expression and apoptosis index of precancerous lesions of gastric (PLGC) rats; To explore potential mechanism of intervention on PLGC. Methods The rat model of gastric precancerous lesion was made by multi-factor modeling with chemical intervention primarily. The rats were randomly divided into normal group, model group, Vimentin group, Xiaotan Hewei Formula group. Each administration group was given the corresponding medicine for gavage. After 6 weeks of intervention, the expression of Caspase-3 in gastric mucosa was detected by immunohistochemistry. The apoptosis index of gastric mucosa was detected by TUNEL method. Results Compared with the normal group, the level of Caspase-3 and the apoptosis index of gastric mucosa cells in the model group were significantly lower (P<0.05); Compared with the model group, the level of Caspase-3 and the apoptosis index of gastric mucosa cells in the Xiaotan Hewei Formula group and Vimentin group increased significantly (P<0.05), and the Xiaotan Hewei Formula group was better than Vimentin group (P<0.05). Conclusion Xiaotan Hewei Formula can promote the apoptosis of PLGC by upregulating the expression of Caspase-3, which can prevent gastric precancerous lesion.
Key words: precancerous lesions of gastric carcinoma; Xiaotan Hewei Formula; apoptosis index; Caspase-3; rats
胃癌是常見的恶性肿瘤,严重威胁人类的生存,其发病率及死亡率较高。胃癌前病变(precancerous lesions of gastric carcinoma,PLGC)的防治是胃癌二级预防的重要内容[1]。逆转PLGC成为了胃癌防治的有效措施之一。目前西医治疗PLGC的特殊药物及手段并不完善,而中医药的优势则较为明显,不仅能改善患者的临床症状,还可逆转PLGC[2]。因此,中医药防治PLGC已逐渐受到业界的重视,其中胃黏膜细胞凋亡紊乱在PLGC的发生发展中扮演了重要角色。消痰和胃方是我院临床经验方。本研究观察消痰和胃方对PLGC大鼠胃黏膜细胞Caspase-3水平及凋亡指数的影响,初步探讨其作用机制。endprint
1 实验材料
1.1 动物
清洁级Wistar雄性大鼠,6周龄,中国科学院上海试验动物中心,动物许可证号SCXK(沪)2012- 0002。饲养于第二军医大学药学院清洁级开放式动物房。
1.2 药物……p>
