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:
Rapid communications in mass spectrometry : RCM
影响因子:
--
通讯作者:
Reed,GregoryA
Reed,GregoryA
中科院分区:
--
文献类型:
--
作者:
Flynn,ColleenA;Alnouti,Yazen;Reed,GregoryA

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药物与药物在转运体之间的相互作用是一个重要且未被充分研究的临床问题。研究特定的转运蛋白功能和筛选潜在的药物-药物相互作用,无论是在体外,特别是在体内,都需要经过验证的实验探针。非索非那定是一种获批的、耐受性良好的药物,是研究膜转运蛋白功能的有前途的探针。尽管已知非索非那定的药代动力学受转运体控制,但单个转运体的作用尚未确定。为了支持这项工作,我们建立了一种快速、特异、灵敏的非索非那定定量分析方法。以西替利嗪为内标,建立了高效液相色谱/串联质谱仪(LC/MS/MS)测定细胞裂解液中非索非那定含量的方法。用乙腈沉淀法制备细胞裂解物进行分析。然后用梯度反相色谱分离分析物,并用串联质谱仪分析非非那定的Them/z502.17/466.2和西替利嗪的m/z389.02/201.1。细胞裂解液中非索非那定的线性范围为1~5 0 0 ng/mL。该方法的定量下限为1 ng/mL,相对标准偏差小于5%。日内和日间精密度和准确度均在FDA生物分析指南规定的限度内。我们还将验证该方法,不仅可以支持非索非那定的定量,也可以支持其他用于药物-药物相互作用研究的探针药物。这种定量方法将有助于将非索非那定用作表征转运蛋白活性的探针药物。版权所有©2011 John Wiley&Sons,Ltd.
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.
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: --
发表时间: 1999-08
期刊: Drug metabolism and disposition: the biological fate of chemicals
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液相色谱荧光检测法测定人血浆中的非索非那定。
DOI: --
发表时间: 2004
影响因子: 3.4
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使用 96 孔固相萃取和串联质谱检测 HPLC 测定人血浆中的非索非那定。
DOI: 10.1016/j.jpba.2004.02.016
发表时间: 2004
影响因子: 3.4
作者:
I. Fu;E. Woolf;B. K. Matuszewski
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DOI: 10.1016/j.jchromb.2007.08.011
发表时间: 2007-10-15
影响因子: 3
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