Development of LC-MS/MS method for the simultaneous analysis of the cardioprotective drug dexrazoxane and its metabolite ADR-925 in isolated cardiomyocytes and cell culture medium
Language English Country Great Britain, England Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't, Validation Study
PubMed
23339990
DOI
10.1016/j.jpba.2012.12.024
PII: S0731-7085(12)00696-6
Knihovny.cz E-resources
- MeSH
- Chromatography, Liquid methods MeSH
- Ethylenediamines pharmacokinetics MeSH
- Glycine analogs & derivatives pharmacokinetics MeSH
- Spectrometry, Mass, Electrospray Ionization methods MeSH
- Myocytes, Cardiac metabolism MeSH
- Cardiovascular Agents pharmacokinetics MeSH
- Rabbits MeSH
- Rats MeSH
- Cells, Cultured MeSH
- Animals, Newborn MeSH
- Pilot Projects MeSH
- Rats, Wistar MeSH
- Razoxane pharmacokinetics MeSH
- Sensitivity and Specificity MeSH
- Tandem Mass Spectrometry methods MeSH
- Animals MeSH
- Check Tag
- Rabbits MeSH
- Rats MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Validation Study MeSH
- Names of Substances
- Ethylenediamines MeSH
- Glycine MeSH
- ICRF 198 MeSH Browser
- Cardiovascular Agents MeSH
- Razoxane MeSH
Dexrazoxane (DEX) is the only clinically used drug effective against anthracycline-induced cardiotoxicity and extravasation injury. However, the mechanism of its cardioprotective action still remains elusive. This paucity of comprehensive data is at least partially caused by the analytical difficulties associated with selective and sensitive simultaneous determination of the parent drug and its putative active metabolite ADR-925 in the relevant biological material. The aim of this study was to develop and validate the first LC-MS/MS method for simultaneous determination of DEX and ADR-925 in the isolated rat neonatal ventricular cardiomyocytes (NVCMs) and the cell culture medium. The analysis was performed on a Synergi Polar-RP column using the gradient profile of the mobile phase composed of 2mM ammonium formate and methanol. Electrospray ionization and ion trap mass analyzer were used as ionization and detection techniques, respectively. NVCMs were precipitated with methanol and the cell culture medium samples were diluted with the same solvent prior the LC-MS/MS analysis. The method was validated within the range of 4-80pmol/10(6) NVCMs and 7-70pmol/10(6) NVCMs for DEX and ADR-925, respectively, and at the concentrations of 8-100μM for both compounds in the culture cell medium. The practical applicability of this method was confirmed by the pilot analysis of NVCMs and the corresponding cell medium samples from relevant in vitro experiment. Hence, the LC-MS/MS method developed in this study represents a modern analytical tool suitable for investigation of DEX bioactivation inside the cardiomyocytes. In addition, the basic utility of the method for the analysis of DEX and ADR-925 in plasma samples was proved in a pilot experiment.
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