Determination of sunitinib and its active metabolite, N-desethyl sunitinib in mouse plasma and tissues by UPLC-MS/MS: assay development and application to pharmacokinetic and tissue distribution studies

作者：Chen, Xiao; Wang, Zhong; Liu, Mengping; Liao, Min; Wang, Xinfeng; Du, Huajuan; Chen, Jiefeng; Yao, Meicun^*; Li, Qing

来源：Biomedical Chromatography, 2015, 29(5): 679-688.

DOI：10.1002/bmc.3331

• UPLC-MS
• MS
• mouse
• sunitinib
• pharmacokinetics
• distribution

A simple, sensitive and specific method using ultraperformance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS) was developed to determine sunitinib and N-desethyl sunitinib in mouse plasma and tissues. The analytes were separated by an isocratic mobile phase consisting of acetonitrile and buffer solution (water with 0.1% formic acid and 5m m ammonium acetate; 40: 60, v/v) running at a flow rate of 0.35mL/min for 2min. Quantification was performed using a mass spectrometer by multiple reaction monitoring in positive electrospray ionization mode. The transition was monitored at m/z 399283, m/z 371283 and m/z 327270 for sunitinib, N-desethyl sunitinib and internal standard, respectively. Calibration curves were linear over concentration ranges of 2-500, 0.5-50 and 1-250ng/mL for plasma, heart and other biosamples. The method was successfully applied to animal experiments. The pharmacokinetic study indicated that sunitinib was eliminated quickly in mice with a half-life of 1.2h; tissue distribution data showed more sunitinib and its metabolite in liver, spleen and lung, which provided reference for further study.

• 出版日期2015-5
• 单位中山大学