J4 ›› 2009, Vol. 35 ›› Issue (4): 608-611.

• 基础研究 • 上一篇    下一篇

鸦胆子乙醇提取物对血小板源性生长因子受体介导细胞迁移的抑制作用

史艳芬1|李晶2|李玉林1|李荣贵1   

  1. 1. 吉林大学基础医学院病理解剖学教研室|吉林 长春 130021;2. 吉化总医院内分泌科,吉林 吉林132021
  • 收稿日期:2008-11-06 出版日期:2009-07-28 发布日期:2009-08-24
  • 通讯作者: 李荣贵 E-mail:ronggui52@yahoo.com.cn
  • 作者简介:史艳芬(1983-)|女|山西省高平市人|在读医学博士|主要从事肿瘤分子学方面的研究。
  • 基金资助:

    国家863重大专项资助课题(2004AA205020);吉林大学留学回国科研启动基金资助课题[科技字(419)号]

Inhibitory effect of ethanol extract from Java Brucea Fruit on cell migration mediated by platelet-derived growth factor receptor β

SHI Yan-Fen1, LI Jing2, LI Yu-Lin1, LI Rong-Gui1   

  1. 1.Department of Pathology,School of Basic Medical Sciences,Jilin University,Changchun 130021,China|2. Department of Endocrinology,Ji Hua Hospital,Jilin 132021,China
  • Received:2008-11-06 Online:2009-07-28 Published:2009-08-24

摘要:

目的:观察鸦胆子乙醇提取物对血小板源性生长因子受体β(PDGFRβ)介导细胞迁移的影响,阐明其起作用的有效成分。方法:用脂质体介导的细胞转染技术将人PDGFRβ 表达载体转染体外培养的不表达PDGFRβ的PAE细胞,G418抗性筛选建立稳定转染的细胞株,采用RT-PCR法检测PDGFRβ的表达;用细胞损伤修复实验观察细胞损伤24 h完全修复所需的血小板源性生长因子BB(PDGFBB)最低浓度;划痕实验观察加入不同浓度鸦胆子乙醇提取物24 h后,计算细胞迁移的抑制率及鸦胆子发挥抑制作用的主要成分溶于乙醇溶液的浓度。结果:RT-PCR检测转染组细胞表达PDGFRβ;细胞损伤修复实验检测细胞损伤24 h完全修复所需的血小板源性生长因子BB(PDGFBB)最低浓度为10  μg·L-1;划痕实验检测随着鸦胆子乙醇提取物(70%乙醇溶液)浓度的增加,对细胞迁移的抑制率增加(P<0.05),呈剂量效应关系;50%乙醇提取物和25%乙醇提取物(浓度≤10  μg·L-1)对细胞迁移抑制不明显,鸦胆子乙醇提取物浓度>10  μg·L-1主要导致细胞死亡。结论:鸦胆子抗肿瘤作用机制可能是通过抑制 PDGFRβ 介导的细胞迁移来实现的,其发挥作用的主要成分更易溶于70%的乙醇溶液中。

关键词:  鸦胆子乙醇提取物; 恶性肿瘤; 血小板源性生长因子受体 ;细胞迁移

Abstract:

Objective
To study the effects of ethanol extract from Java Brucea Fruit on platelet-derived growth factor receptor β (PDGFRβ) mediated cell migration and to obtain the valuable messages on the characteristics of its active ingredient. 
Methods   PAE cells was transfected with the vector expressing human PDGFRβ with Transfectom 2000;After screening by G418 resisitance,RT-PCR was used to monitor the expression of PDGFRβ in the cells;Wound healing of the cells was used to examine the lowest consistency of PDGFBB and inhibitory effect of ethanol extract of Java Brucea Fruit on cell migration after restoring 24 h.Results Human PDGFRβ was stably expressed in PAE cells transfected with the expressing vector.The lowest consistency of exogenous PDGFBB which promoted PDGFRβ mediated cell migration was 10 μg·L-1.70% ethanol extract of Java Brucea Fruit which strongly inhibited PDGFRβ mediated cell migration was dose-dependent(P<0.05),50% and 25% ethanol extract from Java Brucea Fruit (≤10  μg·L-1) had the weaker inhibitory effect, ethanol extract from Java Brucea Fruit (>10 μg·L-1 )  mainly caused the death of the cell. Conclusion Ethanol extract of Java Brucea Fruit has a strongly inhibitory effect on the PDGFRβ mediated cell migration which could play a major role in its effects against metastasis of malignant tumor,the active ingredients of it could be more dissolvable in the 70% ethanol.

Key words: Java Brucea Fruit extract;malignant tumor;platelet-derived growth factor receptor;cell migration

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