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中国临床药理学与治疗学 ›› 2009, Vol. 14 ›› Issue (6): 617-623.

• 基础研究 • 上一篇    下一篇

HSPG和无HS-GAGs链HSPG体外抗乳腺癌的研究

谢强1, 蒋志文2, 祝晓光2, 刘浩2   

  1. 1安徽省立医院PET-CT 中心, 合肥 230001, 安徽;
    2蚌埠医学院药理教研室, 蚌埠 233000, 安徽
  • 收稿日期:2009-01-09 修回日期:2009-06-02 出版日期:2009-06-26 发布日期:2020-10-27
  • 通讯作者: 蒋志文, 男, 教授, 硕导, 研究方向:肿瘤药理学。Tel:0552-3175288 E-mail:zzwwjj51@yahoo.com.cn
  • 作者简介:谢强,男,硕士,研究方向:正电子药物与肿瘤药理学。Tel:0551-2283773 E-mail:jackxie340@21cn.com

Anti-breast cancer experiment research on heparan sulfate proteoglycan and heparan sulfate proteoglycan without heparan sulfate-glycosaminoglycan chain in vitro

XIE Qiang1, JIANG Zhi-wen2, ZHU Xiao-guang2, LIU Hao2   

  1. 1PET-CT Center of Anhui Provincial Hospital, Hefei 230001, Anhui, China;
    2Department of Pharmacology, Bengbu Medical College, Bengbu 233000, Anhui, China
  • Received:2009-01-09 Revised:2009-06-02 Online:2009-06-26 Published:2020-10-27

摘要: 目的: 比较硫酸乙酰肝素蛋白聚糖(简称HSPG) 和去硫酸乙酰肝素链(简称HS-GAGs 链即HS 链) 的HSPG 的体外抗人乳腺癌细胞MDA-MB-231 的抗增殖和凋亡诱导作用。方法: 对HSPG 进行提取、纯化, 硫酸乙酰肝素酶1 水解HSPG 的HS链;光学显微镜法观察两组分引起的细胞形态学的变化;MTT 比色法检测两组分对肿瘤细胞生长曲线的影响;流式细胞术结合Annexin V-FITC 及PI 双染标记法观察两组分对肿瘤细胞凋亡的影响。结果: HSPG 可致MDA-MB-231 细胞脱落悬浮;MTT 法检测结果显示HSPG 对MDA-MB-231细胞增殖的抑制作用随浓度的增加而增强, 而去HS 链HSPG 只有在高浓度时才呈现出抑制作用。HSPG 能诱导MDA-MB-231 的早期凋亡, 而去HS链HSPG 在高浓度(4 mg/mL) 时对MDA-MB-231 早期凋亡有诱导作用。结论: HSPG 能诱导MDAMB-231 的早期凋亡和抑制细胞生长增殖。作用机制可能与HSPG 的硫酸乙酰肝素链有关。

关键词: 硫酸乙酰肝素蛋白聚糖, 硫酸乙酰肝素链, MDA-MB-231, MCF-7, 凋亡

Abstract: AIM: To compare the antiproliferative effect and apoptosis-inducing activity by HSPG and HSPG without heparan sulfate chains on human mammary cancer cell MDA-MB-231 in vitro. METHODS: HSPG was isolated and purified, the heparan sulfate chains of HSPG was hydrolyzed by heparitinase1.The changes of two components cell morphology were observed by light microscope, the anti-proliferation of HSPG and HSPG without HS chains was measured by MTT assay, the cell growth curve was drawn and the apoptosis was detected by Annexin V PI double staining and flow cytometry. RESULTS: MCF-7 type HSPG induced the exfoliation and suspension of MDA-MB-231 cells.MTT assay showed that different concentrations of HSPG inhibited MDA-MB-231 cells proliferation in a concentration-dependent manner.There was inhibition effect only in high concentrations of HSPG without HS chains.HSPG induced MDA-MB-231 cells'apoptosis at the early stage, however, 4 mg/mL HSPG without HS chains had some effects on the apoptosis at the early stage. CONCLUSION: HSPG could induce MDA-MB-231 cells' apoptosis at the early stage and distinctly inhibit the growth of MDA-MB-231 cells, the mechanism may be related to HS chains of HSPG.

Key words: heparan sulphate proteoglycan, heparan sulphate chain, MDA-MB-231, MCF-7, apoptosis

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