Fig. 1: ATRA effects on the levels of selected lipid species in NB4 and NB4.306 cells.

Biological triplicates of the indicated retinoid-sensitive NB4 and retinoid-resistant NB4.306 cells were treated with vehicle (DMSO) or ATRA (1 μM) for the indicated amounts of time. The box plots show the median ± SD levels of the indicated lipid species. The number of different molecules identified by mass-spectrometry is indicated in parenthesis. *Significantly different from the corresponding vehicle treated control (p < 0.05, unpaired Student’s t test). **Significantly different (p < 0.01) from the corresponding vehicle treated control (p < 0.01, unpaired Student’s t test).