Bioanalysis of sulprostone, a prostaglandin E analogue and selective EP agonist, in monkey plasma by liquid chromatography-tandem mass spectrometry.

08:00 EDT 25th May 2018 | BioPortfolio

Summary of "Bioanalysis of sulprostone, a prostaglandin E analogue and selective EP agonist, in monkey plasma by liquid chromatography-tandem mass spectrometry."

Sulprostone is a potent prostaglandin E (PGE) analogue and one of the first identified selective G-protein-coupled receptor 3 (EP) agonists. It has been investigated as a potential antiulcer agent and frequently used in the research of EP antagonist. To assist pharmacokinetic and pharmacodynamic studies, a rapid and sensitive LC-MS/MS method was developed and qualified for the quantitation of sulprostone in monkey plasma. Using electrospray ionization mass spectrometry, an ammonium adduct in positive mode was chosen for analysis which had seven times of the sensitivity of the depronated ion in negative mode. Latanoprost, a prostaglandin F analogue, was used as the internal standard while good sensitivity and chromatography were obtained on a 2.6 μm core-shell column with pentafluorophenyl stationary phase. An assay dynamic range of 2 to 4000 ng/mL was achieved with a sample volume of 25 μL plasma on a Sciex API4000 instrument with simple protein precipitation. Several esterase inhibitors including sodium fluoride (NaF), phenylmethanesulfonyl fluoride (PMSF), diisopropylfluorophosphate (DFP), paraoxon and dichlorvos as well as wet ice conditions were explored for the stabilization of sulprostone in monkey plasma. The developed method was successfully applied for the evaluation of pharmacokinetics of sulprostone after intravenous administration of 0.5 mg/kg to cynomolgus monkey.


Journal Details

This article was published in the following journal.

Name: Journal of chromatography. B, Analytical technologies in the biomedical and life sciences
ISSN: 1873-376X
Pages: 51-57


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