School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310000, China.
Medical College of Jiaxing University, Key Laboratory of Medical Electronics & Digital Health of Zhejiang Province, Jiaxing University, Jiaxing, 314001, China.
Bioanalysis. 2024;16(10):461-473. doi: 10.4155/bio-2023-0215. Epub 2024 Mar 26.
Investigation of the pharmacokinetics of sorafenib (SRF) in rats with hepatocellular carcinoma (HCC). A reproducible ultra-HPLC-MS method for simultaneous determination of serum SRF, -hydroxymethyl sorafenib and -demethylation sorafenib. Both the maximum serum concentrations (2.5-times) and the area under the serum concentration-time curve from 0 h to infinity (4.5-times) of SRF were observed to be significantly higher, with a greater than 3.0-fold decrease in the clearance rate in the HCC-bearing rats compared with these values in healthy animals. Further study revealed approximately 3.8- and 3.2-times increases in the apparent Michaelis constant for -hydroxymethyl sorafenib and -demethylation sorafenib conversions in the HCC-bearing rats. The low efficiency for the SRF conversions was a key contributor to the increased serum concentrations of SRF.
肝癌荷瘤大鼠体内索拉非尼的药代动力学研究。一种重现性好的超高效液相色谱-串联质谱法,可同时测定血清中的索拉非尼、-羟甲基索拉非尼和-去甲基索拉非尼。与健康动物相比,荷瘤大鼠的索拉非尼最大血清浓度(2.5 倍)和 0 至无穷时的血清浓度-时间曲线下面积(4.5 倍)均显著升高,清除率降低超过 3.0 倍。进一步的研究表明,荷瘤大鼠中 -羟甲基索拉非尼和-去甲基索拉非尼转化的表观米氏常数分别增加了约 3.8 倍和 3.2 倍。索拉非尼转化效率低是导致其血清浓度升高的关键因素。