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中国临床药理学与治疗学 ›› 2011, Vol. 16 ›› Issue (9): 981-985.

• 基础研究 • 上一篇    下一篇

哌唑嗪和去氧肾上腺素对大鼠肝星状细胞增殖和凋亡的作用

陈猛1, 马勇2   

  1. 1嘉兴市第一医院药剂科,嘉兴 314000,浙江;
    2中国人民解放军第123中心医院,蚌埠 233015,安徽
  • 收稿日期:2011-05-30 修回日期:2011-07-20 出版日期:2011-09-26 发布日期:2011-10-11
  • 通讯作者: 马勇,男,博士,主任医师,主要从事肝脏疾病的临床与基础研究。Tel: 0552-4973806 E-mail: wscm21@sohu.com
  • 作者简介:陈猛,男,硕士,药师,主要从事临床药学研究。Tel: 15967387764 E-mail: wscm1981@sina.com

Effects of prazosin and phenylephrine on the proliferation and apoptosis of rat hepatic stellate cells

CHEN Meng1, MA Yong2   

  1. 1Department of Pharmacy, the First Hospital of Jiaxing, Jiaxing 314000, Zhejiang, China;
    2Department of Liver Diseases, 123th Hospital of PLA, Bengbu 233015, Anhui, China
  • Received:2011-05-30 Revised:2011-07-20 Online:2011-09-26 Published:2011-10-11

摘要: 目的: 探讨α1-肾上腺素受体(α1-AR)拮抗剂哌唑嗪(PZ)和激动剂去氧肾上腺素(PE)对体外活化的大鼠肝星状细胞(HSC-T6)增殖和凋亡的作用。方法: 体外培养HSC-T6;MTT法检测HSC-T6的增殖;ELISA法检测HSC-T6内cAMP含量;流式细胞仪检测HSC-T6凋亡率;免疫细胞化学染色检测核蛋白因子κBp65 (NF-κBp65)的表达。结果: 在体外培养的活化大鼠肝星状细胞中,α1-AR激动剂PE(10-5、10-7、10-9 mol/L)对HSC-T6具有明显的抑制cAMP合成,促进增殖,增强核转录因子κBp65的表达及抑制凋亡的作用,而α1-AR拮抗剂PZ(10-5、10-7、10-9 mol/L)具有相反的作用。结论: α1-肾上腺素激动剂PE对体外活化的HSC-T6具有促进增殖和抑制凋亡的作用,而拮抗剂PZ具有抑制增殖和促进凋亡的作用,可能主要通过α1受体调控cAMP合成及NF-κBp65的表达起作用。

关键词: 肝星状细胞, 增殖, 凋亡

Abstract: AIM: To investigate the effects of agonist and antagonist of radenoreceptor (α1-AR) on the proliferation and apoptosis of rat hepatic stellate cells (HSC-T6). METHODS: After the drug was administered to the cultured HSC-T6; MTT assay was used to α1-evaluate the proliferation of HSC-T6; ELISA assay was used to evaluate the produce of cAMP in HSC-T6; flow cytometer (FCM) was used to test the apoptosis of HSC-T6; the expression of nuclear factor-κBp65 (NF-κBp65) protein was detected by immunocytochemical technique. RESULTS: In the in vitro experiments, phenylephrine (10-5,10-7,10-9 mol/L) significantly decreased the produce of cAMP in HSC-T6, promoted HSC-T6 proliferation, enhanced the expression of NF-κBp65 protein and inhibited the apoptosis of HSC-T6, on the contrary to the antagonist prazosin (10-5,10-7,10-9 mol/L) of α1-AR. CONCLUSION: Phenylephrine can promote proliferation and inhibit apoptosis of the cultured HSC-T6, while prazosin has opposite effect. Its mechanism might be associated with the α1-adenoreceptor by meditating the produce of cAMP and the expression of nuclear factor kappa Bp65 in HSC-T6.

Key words: Hepatic stellate cell, Proliferation, Apoptosis

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