Identification of metabolites of honokiol in rat urine using 13C stable isotope labeling and liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry

被引:26
|
作者
Liu, Juan [1 ,2 ]
Tang, Minghai [1 ,2 ]
Lai, Huijun [1 ,2 ,3 ]
Dong, Yinfeng [1 ,2 ,3 ]
Xie, Caifeng [1 ,2 ]
Ye, Haoyu [1 ,2 ]
Ma, Liang [1 ,2 ]
Qiu, Neng [1 ,2 ,3 ]
Li, Yanfang [3 ]
Cai, Lulu [1 ,2 ]
Chen, Lijuan [1 ,2 ]
机构
[1] Sichuan Univ, West China Med Sch, West China Hosp, State Key Lab Biotherapy, Chengdu 610065, Peoples R China
[2] Sichuan Univ, West China Med Sch, West China Hosp, Ctr Canc, Chengdu 610065, Peoples R China
[3] Sichuan Univ, Coll Chem Engn, Chengdu 610065, Peoples R China
关键词
UPLC/Q-TOF-MS/MS; Honokiol; Urine; Metabolite; COUNTER-CURRENT CHROMATOGRAPHY; COMBINING LIPOSOMAL HONOKIOL; CORTEX MAGNOLIAE-OFFICINALIS; THERAPEUTIC EFFECTIVENESS; DRUG-METABOLISM; PURIFICATION; SEPARATION; CISPLATIN; APOPTOSIS; CELLS;
D O I
10.1016/j.chroma.2013.03.031
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A general approach based on stable isotope labeling and UPLC/Q-TOF-MS analysis of in vivo novel metabolites of honokiol has been developed in our study. In this method, urine samples were collected after intravenous administration of mixture of regular and [C-13(6)]-labeled honokiol at 1:1 ratio to healthy rats. The metabolites could be easily recognized by the determination of a chromatographically co-eluted pair of isotopomers (MS doublet peaks) with similar peak intensities and mass difference corresponding to that between isotope-labeled and non-isotope-labeled honokiol. A total of 51 metabolites were detected, 37 of which were tentatively identified based on mass accuracy (<5 ppm). Among them, 33 of honokiol metabolites were first reported with 5 metabolites belonging to phase land other 32 metabolites belonging to phase II metabolites. Our results highlighted that the main phase I metabolic pathways of honokiol in rats were oxidation, and the phase II metabolic pathways were sulfation, glucuronidation, acetylation as well as amino acids conjugation. This was the first research focused on the biotransformation of honokiolin rats, and the identification of these metabolites might provide us essential information for further pharmacological and clinical studies of honokiol. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:48 / 56
页数:9
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