Quantification of the transporter substrate fexofenadine in cell lysates by liquid chromatography/tandem mass spectrometry.
Quantification of the transporter substrate fexofenadine in cell lysates by liquid chromatography/tandem mass spectrometry.
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通过液相色谱/串联质谱法对细胞裂解物中的转运蛋白底物非索非那定进行定量。
DOI:
10.1002/rcm.5111
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Reed,GregoryA
中科院分区:
文献类型:
--
作者:
Flynn,ColleenA;Alnouti,Yazen;Reed,GregoryA
Drug–drug interactions at transporters present a significant and under‐investigated clinical problem. Investigations of specific transporter functions and screening for potential drug‐drug interactions, bothin vitroand especiallyin vivo, will require validated experimental probes. Fexofenadine, an approved, well‐tolerated drug, is a promising probe for studies of membrane transporter function. Although fexofenadine pharmacokinetics are known to be controlled by transporters, the contributions of individual transporters have not been defined. We have developed a rapid, specific, and sensitive analytical method for quantitation of fexofenadine to support this work. This liquid chromatography/tandem mass spectrometry (LC/MS/MS) method quantifies fexofenadine in cell lysates fromin vitrostudies using cetirizine as the internal standard. Cell lysates were prepared for analysis by acetonitrile precipitation. Analytes were then separated by gradient reversed‐phase chromatography and analyzed by tandem mass spectrometry using them/z502.17/466.2 transition for fexofenadine andm/z389.02/201.1 for cetirizine. The method exhibited a linear dynamic range of 1–500 ng/mL for fexofenadine in cell lysates. The lower limit of quantification was 1 ng/mL with a relative standard deviation of less than 5%. Intra‐ and inter‐day precision and accuracy were within the limits presented in the FDA guidelines for bioanalysis. We also will validate this method to support not only the quantification of fexofenadine, but also other probe drugs for drug–drug interaction studies. This method for quantification will facilitate the use of fexofenadine as a probe drug for characterization of transporter activity. Copyright © 2011 John Wiley & Sons, Ltd.
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DOI:
10.1016/0378-4347(91)80208-t
发表时间:
1991
期刊:
Journal of chromatography
影响因子:
--
作者:
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DOI:
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发表时间:
1999-08
期刊:
Drug metabolism and disposition: the biological fate of chemicals
影响因子:
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作者:
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通讯作者:
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影响因子:
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影响因子:
3.4
作者:
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DOI:
10.1016/j.jchromb.2007.08.011
发表时间:
2007-10-15
影响因子:
3
作者:
Yamane, Naoe;Tozuka, Zenzaburou;Kumagai, Yuji
通讯作者:
Kumagai, Yuji