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中国临床药理学与治疗学 ›› 2014, Vol. 19 ›› Issue (8): 877-881.

• 基础研究 • 上一篇    下一篇

N-异喹啉-3-羧酸-L-亮氨酸苄酯抗人食道癌作用的研究

杨国栋1, 张晓英2, 冯志松1, 贺国斌1, 江毅敏1   

  1. 1 川北医学院附属医院消化内科,南充 637000,四川;
    2 川北医学院寄生虫教研室,南充 637000,四川
  • 收稿日期:2014-01-02 修回日期:2014-07-21 出版日期:2014-08-26 发布日期:2014-08-26
  • 通讯作者: 张晓英,女,博士,讲师,研究方向:肿瘤基础研究。 Tel:15881722608 E-mail:zxy269163@.com
  • 作者简介:杨国栋,男,博士,主治医师,讲师,研究方向:消化道肿瘤。Tel:15860569639 E-mail:ygd_ld2003@.com
  • 基金资助:
    川北医学院科研发展重点培育项目(CBY13-A-ZP16);川北医学 院2013年博士科研启动基金(CBY13-QD-12)

N-isoquinoline-3-carbonyl-L-Leucine-benzylester as a new agent of inhibiting esophageal carcinoma proliferation

YANG Guo-dong1, ZHANG Xiao-ying2, FENG Zhi-song1, HE Guo-bin1, JIANG Yi-min1   

  1. 1 Department of Gastroenterology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China;
    2 Teaching and Research Section of Parasitology, School of Basic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
  • Received:2014-01-02 Revised:2014-07-21 Online:2014-08-26 Published:2014-08-26

摘要: 目的 体内外研究N-异喹啉-3-羧酸-L-亮氨酸苄酯(N-isoquinoline-3-carbonyl-L-Leucine- benzylester,IQ-L-OBzl)对人食道癌细胞体抗肿瘤作用。方法 MTT法检测细胞活性;检测食管癌裸鼠移植瘤模型的瘤重,计算抑瘤率及外周血白细胞数;流式细胞仪检测细胞内活性氧(intracellular reactive oxygen species, ROS)的水平。结果 在体外实验中IQ-L-OBzl组的食管癌(Eca-109、EC-9706)IC50分别为(405.06±23.49) nmol/L、(485.79±48.47) nmol/L;体内实验中最高抑瘤率为(42.42±7.47) %,化合物的抑瘤率及瘤重有明显的浓度相关性;IQ-L-OBzl组细胞内ROS水平为(98.68±13.19)平均荧光强度(MFI),高于对照组(P<0.05)。结论 IQ-L-OBzl的体内、外抗食道癌作用与细胞内ROS有关,且对白细胞无明显毒副作用。

关键词: N-异喹啉-3-羧酸-L-亮氨酸苄酯, 食道癌, 活性氧

Abstract: AIM: To determine whether N-isoquinoline-3-carbonyl-L-Leucine-benzylester(IQ-L-OBzl)inhibited the growth of human esophageal cancer cell in vitro and in vivo. METHODS: MTT assays were performed to assess the proliferation of esophageal carcinoma cell lines. The model of esophageal carcinoma in nude mice was established, then the weight of tumor tissue was measured, the growth inhibition rates of tumor were calculated and the WBC were counted on peripheral blood of the mice. Intracellular reactive oxygen species(ROS)were detected by flow cytometry analysis. RESULTS: The IC50 of IQ-L-OBzl inhibiting esophageal carcinoma cell lines(Eca-109 and EC-9706)proliferation were (405.06±23.49) nmol/L and (485.79±48.47) nmol/L. The best growth inhibition rate was (42.42±7.47) %. The growth inhibition rate and the weight of tumor exhibited dose-dependent manner. The ROS level of IQ-L-OBzl was (98.68±13.19) MFI, higher than that in control groups (P<0.05). CONCLUSION: IQ-L-OBzl has anti-esophageal carcinoma ability in vitro and in vivo, and this ability have related to ROS without significant side effects on WBC.

Key words: N-isoquinoline-3-carbonyl-L-Phenylalanine-benzylester, esophageal carcinoma, reactive oxygen species

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