Abstract |
A sensitive and simple HPLC method was developed for the determination of a novel compound, a potential anti- cancer drug, N-(2-hydroxy-5-nitrophenylcarbamothioyl)-3,5-dimethylbenzamide (DM-PIT-1), a member of the new structural class of non- phosphoinositide small molecule antagonist of phosphatidylinositol-3,4,5-trisphosphate-pleckstrin-homology domain interactions, in mouse plasma and tumor tissue homogenates. The chromatographic separation of DM-PIT-1 was achieved on C18 column using isocratic elution with acetonitrile-water (70:30) containing 0.1% formic acid (v/v). DM-PIT-1 was detected by UV absorbance at 320 nm and confirmed by LC-MS. The extraction of the DM-PIT-1 from the plasma and tumor tissue with methylene chloride resulted in its high recovery (70-80%). HPLC calibration curves for DM-PIT-1 based on the extracts from the mouse plasma and tumor tissue samples were linear over a broad concentration range of 0.25-20 μg/ml/g, with intra/inter-day accuracy of 95% and the precision of variation below 10%. The limits of detection and quantification were 0.1 ng and 0.2 ng, respectively. The described method was successfully applied to study the pharmacokinetics of the DM-PIT-1 following the parenteral injections of DM-PIT-1 entrapped in 1,2-disteratoyl-sn-glycero-3- phosphoethanolamine-N-[methoxy( polyethylene-glycol)-2000] ( PEG-PE) micelles.
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Authors | Igor Skidan, Jacob Grunwald, Ritesh Thekkedath, Alexei Degterev, Vladimir Torchilin |
Journal | Journal of chromatography. B, Analytical technologies in the biomedical and life sciences
(J Chromatogr B Analyt Technol Biomed Life Sci)
Vol. 879
Issue 19
Pg. 1610-6
(Jun 01 2011)
ISSN: 1873-376X [Electronic] Netherlands |
PMID | 21514904
(Publication Type: Journal Article, Research Support, N.I.H., Extramural)
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Copyright | Copyright © 2011 Elsevier B.V. All rights reserved. |
Chemical References |
- Benzamides
- Micelles
- N-(((2-hydroxy-5-nitrophenyl)amino)carbonothioyl)-3,5-dimethylbenzamide
- Phosphatidylethanolamines
- dioleoyl-N-(monomethoxypolyethylene glycol succinyl)phosphatidylethanolamine
- Polyethylene Glycols
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Topics |
- Animals
- Area Under Curve
- Benzamides
(analysis, blood, pharmacokinetics)
- Cell Line, Tumor
- Chromatography, High Pressure Liquid
(methods)
- Drug Stability
- Female
- Mice
- Mice, Inbred BALB C
- Micelles
- Neoplasms
(chemistry)
- Phosphatidylethanolamines
(chemistry)
- Polyethylene Glycols
(chemistry)
- Reproducibility of Results
- Sensitivity and Specificity
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