Lipidomics discovery profiling and targeted LC/MS analysis in 3T3-L1 differentiating adipocytes
The document details a study investigating lipid changes during the differentiation of 3T3-L1 pre-adipocytes into mature adipocytes over an 8-day period. The research utilizes Liquid Chromatography-Mass Spectrometry (LC/MS) to identify potential lipid biomarkers associated with this biological process.
An LC/MS system composed of an Agilent 1200 Series LC and Agilent 6520 Quadrupole Time-of-Flight (Q-TOF) was selected for the study. The analysis involved extracting lipids from cell pellets at days 0, 2, and 8 of differentiation. Data was acquired in both positive and negative ion modes using specific chromatographic conditions and analyzed using Agilent MassHunter Qual, MassProfiler, and GeneSpring-MS software.
The differentiation process is an 8-day procedure that begins with adding a hormone cocktail to pre-adipocytes.
The column used for negative ion mode runs has dimensions of 4.6 x 50 mm.
The flow rate is set to 0.1 mL/min from 0 to 5 minutes.