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中国临床药理学与治疗学 ›› 2013, Vol. 18 ›› Issue (11): 1205-1210.

• 基础研究 • 上一篇    下一篇

Combretastatin A4及其磷酸酯二钠在大鼠体内的药代动力学比较研究

张小兰1, 王志强2, 孙建国1, 彭英1, 仲云熙1, 郝琨1, 张仓2, 王广基1   

  1. 1中国药科大学江苏省药物代谢动力学重点实验室, 南京 210009,江苏;
    2南京圣和药业有限公司, 南京 210038,江苏
  • 收稿日期:2013-02-18 修回日期:2013-10-29 出版日期:2013-11-26 发布日期:2013-11-22
  • 通讯作者: 孙建国,男,副教授,研究方向:药物代谢动力学。Tel: 025-83271176 E-mail: jgsun_cpucn@yahoo.cn;王广基,男,教授,研究方向:药物代谢动力学。Tel: 025-83271128 E-mail: guangjiwang@hotmail.com
  • 作者简介:张小兰,女,硕士研究生,研究方向:药物代谢动力学。Tel: 15850699500 E-mail: zhangxiaolan1988@sina.cn
  • 基金资助:
    创新平台提升项目(BM2012012);“十二五”重大新药创制资助项目(2011ZX09401-003)

Pharmacokinetics of Combretastatin A4 and Combretastatin A4 Phosphate in SD rats

ZHANG Xiao-lan1, WANG Zhi-qiang2, SUN Jian-guo1, PENG Ying1, ZHONG Yun-xi1, HAO Kun1, ZHANG Cang2, WANG Guang-ji1   

  1. 1Key Lab of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, Jiangsu, China;
    2Drug R&D Center, Nanjing Sanhome Pharmaceutical Co.Ltd., Nanjing 210038, Jiangsu, China
  • Received:2013-02-18 Revised:2013-10-29 Online:2013-11-26 Published:2013-11-22

摘要: 目的: 采用LC-MS/MS技术比较研究Combretastatin(CA4)及其磷酸酯二钠(CA4P)前药分别给药于SD大鼠后的药代动力学差异。方法: 12只SD大鼠禁食后分别单次尾静脉给予 50 mg/kg CA4P或 36 mg/kg CA4(等摩尔量),采集不同时间点血样,采用LC-MS/MS方法进行血样药物浓度测定,求算相应的药代动力学参数,并建立CA4P-CA4转化的药动学模型。结果: 大鼠单剂量 i.v. 50 mg/kg CA4P或 36 mg/kg CA4后,CA4P和CA4血浆药物浓度-时间曲线下面积AUC0-∞分别为(27126±4142)、(7751±801)、(5037±1433) ng·h·mL-1,消除半衰期t1/2分别为(0.85±0.35)、(1.27±0.33)和(0.95±0.65) h。CA4P和CA4在SD大鼠体内药动学行为均无性别差异。结论: 大鼠单剂量 i.v. 50 mg/kg CA4P后,CA4P在体内迅速转化为CA4,相比于直接 i.v. 36 mg/kg CA4,CA4在体内的暴露量(AUC0-∞)显著性提高(P<0.05),消除半衰期t1/2也有所增加,为前药CA4P的药代动力学优势。

关键词: CA4P, CA4, LC-MS/MS, SD大鼠, 药代动力学

Abstract: AIM: An LC-MS/MS method was set up for the comparative evaluation of pharmacokinetics of CA4P and CA4 in SD rats. METHODS: 12 fasted SD rats were single intravenous administration of 50 mg/kg CA4P or 36 mg/kg CA4 (same molar amount). Plasma samples were collected at different time points and concentrations of CA4P and CA4 were analyzed by LC-MS/MS.The pharmacokinetic parameters were calculated and CA4P-CA4 transformation were simulated by pharmacokinetic model.RESULTS: After i.v. administration of 50 mg/kg CA4P or 36 mg/kg CA4, the AUC0-∞ of CA4P or CA4 were (27126±4142), (7751±801) and (5037±1433) ng·h·mL-1, respectively, the t1/2 were (0.85±0.35), (1.27±0.33) and (0.95±0.65) h, respectively. No gender differences were found in rats.CONCLUSION: The exposure of CA4 was increased significantly by soluble CA4 phosphate in SD rats. CA4P was rapidly transformed into CA4 after a single i.v. administration of CA4P in rats, according to the pharmacokinetic model of CA4P-CA4 transformation set up by us.

Key words: CA4P, CA4, LC-MS/MS, SD rat, Pharmacokinetics

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