Tilianin is an active flavonoid glycoside found in many medical plants. Data are lacking regarding its pharmacokinetics and disposition in vivo. The objective of this study was to develop a sensitive, reliable and validated ultra‐high‐performance liquid chromatography with tandem mass spectrometry (UHPLC–MS/MS) method to simultaneously quantify tilianin and its main metabolites and to determine its pharmacokinetics in wild‐type and breast cancer resistance protein knockout (Bcrp1−/−) FVB mice. Chromatographic separation was accomplished on a C18 column by utilizing acetonitrile and 0.5 mm ammonium acetate as the mobile phase. Mass spectrometric detection was performed using electrospray ionization in both positive and negative modes. The results showed that the precision, accuracy and recovery, as well as the stability of tilianin and its metabolites in mouse plasma, were all within acceptable limits. Acacetin‐7‐glucuronide and acacetin‐7‐sulfate were the major metabolites of tilianin in mouse plasma. Moreover, systemic exposure of acacetin‐7‐sulfate was significantly higher in Bcrp1 (−/−) FVB mice compared with wild‐type FVB mice. In conclusion, the fully validated UHPLC–MS/MS method was sensitive, reliable, and was successfully applied to assess the pharmacokinetics of tilianin in wild‐type and Bcrp1 (−/−) FVB mice. Breast cancer resistance protein had a significant impact on the elimination of the sulfated metabolite of tilianin in vivo.
Biomedical Chromatography – Wiley
Published: Jan 1, 2018
Keywords: ; ; ;
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