解剖学报 ›› 2020, Vol. 51 ›› Issue (2): 195-205.doi: 10.16098/j.issn.0529-1356.2020.02.008

• 肿瘤生物学 • 上一篇    下一篇

5种核碱丙氨酸的合成及其抑制大鼠肝癌细胞RH35增殖的作用机制

徐存拴1 宋亚萍1 徐凯1 杨晖1 丁一1 毕晶晶2  赵茜怡2*  徐霆2*
  

  1. 1. 河南师范大学生命科学学院 河南省科技部共建细胞分化调控国家重点实验室培育基地,河南 新乡 453007;2. 河南师范大学化学化工学院,河南 新乡 453007
  • 收稿日期:2019-01-03 修回日期:2019-04-23 出版日期:2020-04-06 发布日期:2020-04-06
  • 通讯作者: 赵茜怡;徐霆 E-mail:xtsheep@163.com
  • 基金资助:
    细胞分化调控国家重点实验室培育基地研究项目

Synthesis of five types of nucleobase-alanines and their mechanisms of  inhibiting proliferation of rat hepatoma cells RH35

XU Cun-shuan1 SONG Ya-ping1 XU Kai1 YANG Hui1 DING Yi1 BI Jing-jing2 ZHAO Qian-yi2* XU Ting2*   

  1. 1.State Key Laboratory Cultivation Base for Cell Differentiation Regulation, School of Life Science, He’nan Normal  University, He’nan Xinxiang 453007, China; 2.School of Chemistry and Chemical Engineering, He’nan Normal University, He’nan Xinxiang 453007, China
  • Received:2019-01-03 Revised:2019-04-23 Online:2020-04-06 Published:2020-04-06
  • Contact: ZHAO Qian-yi;XU Ting E-mail:xtsheep@163.com

摘要:

目的  合成5种核碱丙氨酸,探讨其细胞毒性及机制。  方法  用丝氨酸-内酯亲核开环方法合成 5种核碱丙氨酸,用MTT法检测它们对大鼠正常肝细胞BRL-3A和大鼠肝癌细胞RH35活性的影响,流式细胞术检测它们对上述BLR-3A和RH35细胞周期进程和凋亡的影响,用Real-time PCR检测它们对上述两种细胞增殖/凋亡相关基因表达的影响。 结果  合成了1-尿嘧啶-L-丙氨酸、1-胸腺嘧啶-L-丙氨酸、1-胞嘧啶-L-丙氨酸、9-腺嘌呤-L-丙氨酸和9-鸟嘌呤-L-丙氨酸等5种核碱丙氨酸。其中,1-胞嘧啶-L-丙氨酸和9-鸟嘌呤-L-丙氨酸对RH35的半数抑制浓度(IC50)值显著低于对BRL-3A的 IC50 值,它们促进RH35凋亡的作用显著强于对BRL-3A作用,它们促进RH35凋亡相关基因CASP3、CASP9和Bax的表达上调幅度,抑制细胞增殖相关基因CCNA2和PCAN的表达下调幅度和抑制抗凋亡相关基因Bcl-2的表达下调幅度均显著高于对BRL-3A作用。  结论  1-胞嘧啶-L-丙氨酸和9-鸟嘌呤-L-丙氨酸通过显著抑制RH35增殖相关基因表达,促进凋亡相关基因表达而抑制其活性和促进其凋亡。

关键词: 核碱丙氨酸, 细胞毒性, 细胞增殖动力学, 流式细胞术, 大鼠

Abstract:

Objective  Five types of nucleobase-alanines were synthesized to study their cytotoxicity and mechanism.  Methods  Five types of nucleobase-alanines were synthesized by the method  of nucleophilic ring-opening of serine-lactone. MTT assay was used to detect their effects on the viability of rat normal hepatocytes BRL-3A and rat hepatoma cells RH35. Flow cytometry was used to detect their effects of cell cycle and apoptosis on BLR-3A and RH35. Real-time PCR was performed to detect their effects of proliferation/apoptosis-related gene expression on these two cells.   Results  Five types of nucleobase-alanines were synthesized, including 1-uracil-L-alanine, 1-thymine-L-alanine, 1-cytosine-L-alanine, 9-adenine-L-alanine and 9-guanine-L-alanine. Among them, 1-cytosine-L-alanine and 9-guanine-L-alanine had significant lower half inhibition concentration(IC50) values for RH35 than for BRL-3A, and their effects of promoting RH35 apoptosis were significantly stronger than that of BRL-3A, the amplitude of their promoting RH35 up-regulation apoptosis-related genes CASP3, CASP9 and Bax, the down-regulation of cell proliferation-related genes CCNA2 and PCAN, as well as the down-regulation of anti-apoptosis-related gene Bcl-2 were significantly higher than those of BRL-3A. Conclusion 1-cytosine-L-alanine and 9-guanine-L-alanine showed significant effects of inhibiting the viability and promoting apoptosis by up-regulating the expression of proliferation-related genes and down-regulating the expression of apoptosis-related genes more potently.

Key words: Nucleobase-alanine,  , Cytotoxicity,  , Cell proliferation kinetics,  , Flow cytometry,  , Rat

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