title: Liquid chromatography method for quantifying D-threo-1-phenyl-2-palmitoylamino-3-morpholino-1-propanol (D-threo-PPMP) in mouse plasma and liver.
abstract: A high-performance liquid chromatography (HPLC) method was developed to measure levels of d-threo-1-phenyl-2-palmitoylamino-3-morpholino-1-propanol (d-threo-PPMP) in mouse plasma and liver. d-threo-PPMP was measured by HPLC with a Luna Pheny-Hexyl column (5 microm, 250 mm x 4.6 mm) employing UV detection at 210 nm using a mobile phase of potassium phosphate buffer (20mM, pH 3.0)-acetonitrile in a 45:55 (v/v) ratio. d-threo-1-phenyl-2-pentadecanoylamino-3-morpholino-1-propanol (PC15MP) was employed as an internal standard (IS). The lower limit of quantitation (LLOQ) was 0.3 microg/ml. The assay was linear over a concentration range of 0.3-10 microg/ml, with acceptable precision and accuracy. Assayed in plasma, the intra- and inter-day validation for all coefficients of variation (R.S.D.%) were found less than 15%. The method was applied to samples from athymic (nu/nu) mice treated with d-threo-PPMP by intraperitoneal injection. d-threo-PPMP levels of approximately 10-20 microg/ml ( approximately 20-40 microM) in plasma and approximately 45 microg/g in liver were obtained. The present method can be used to quantify d-threo-PPMP in mice for bioavailability and dose-response studies.
authors.affiliation: Division of Hematology-Oncology, Childrens Hospital Los Angeles, Los Angeles, CA 90027, USA.
authors.forename: Xiaqin
authors.initials: X
authors.lastname: Wu
authors.forename: Youngleem
authors.initials: Y
authors.lastname: Kim
authors.forename: Bee-Chun
authors.initials: BC
authors.lastname: Sun
authors.forename: Jeff D
authors.initials: JD
authors.lastname: Moore
authors.forename: Walter A
authors.initials: WA
authors.lastname: Shaw
authors.forename: Barry J
authors.initials: BJ
authors.lastname: Maurer
mesh_terms: D000818:Animals; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005260:Female; D008099:Liver / Q000737:chemistry*; D051379:Mice; D008807:Mice, Inbred BALB C; D009025:Morpholines / Q000032:analysis* / Q000097:blood; D012015:Reference Standards; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013107:Sphingolipids / Q000032:analysis* / Q000097:blood
chemical_list: C095823:1-phenyl-2-palmitoylamino-3-morpholino-1-propanol; D009025:Morpholines; D013107:Sphingolipids