Observation of different ceramide species from crude cellular extracts by normal-phase high-performance liquid chromatography coupled to atmospheric pressure chemical ionization mass spectrometry

Autor: Peter D. R. Moeller, Bart-Jan Kroesen, Benjamin J. Pettus, Yusuf A. Hannun, Alicia Bielawska, Zdzislaw M. Szulc, Mark Busman
Rok vydání: 2003
Předmět:
Zdroj: Rapid Communications in Mass Spectrometry. 17:1203-1211
ISSN: 0951-4198
DOI: 10.1002/rcm.1043
Popis: Normal-phase high-performance liquid chromatography (NP-HPLC) coupled to atmospheric pressure chemical ionization mass spectrometry (APCI-MS) allows qualitative analysis of endogenous ceramide and dihydroceramide species from crude lipid extracts utilizing chromatographic methods readily adaptable from commonly used thin layer chromatography (TLC) conditions. Qualitative information for the species comes from observation of differences in chromatographic and mass spectrometric behavior between species. Application to the analysis of ceramide and dihydroceramide from various cell lines is demonstrated. The results show the species profile in each cell line to be unique despite growth under identical conditions. The results from APCI-MS analysis corroborate and enhance information acquired from use of the diacylglycerol kinase assay for total ceramide measurement. This technique readily allows the previously difficult distinction between ceramide and dihydroceramide species.
Databáze: OpenAIRE