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•Long chain bases (LCBs) are sphingolipid intermediates acting as second messengers in programmed cell death (PCD) in plants. Most of the molecular and cellular features of this signaling function remain unknown.
•We induced PCD conditions in Arabidopsis thaliana seedlings and analyzed LCB accumulation kinetics, cell ultrastructure and phenotypes in serine palmitoyltransferase (spt), mitogen‐activated protein kinase...
GRX cell line represents hepatic stellate cell and can be transformed from an actively proliferation myofibroblast phenotype into a quiescent fat-storing lipocyte phenotype. Both express the same gangliosides (GM3, GM2, GM1 and GD1a), which are resolved as doublets on HPTLC. Upper/lower band ratio is increased in lipocyte-like cells and the upper band is composed by ceramides with long-chain fatty...
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