rat liver endothelial cells

LE-540 is a selective retinoic acid receptor antagonist for RARβ (K_i=0.22 μM). LE-540 shows potential for use in cancer research, particularly for breast cancer and lung cancer .

4’-Phosphopantetheine is an orally active coenzyme A (CoA) precursor. 4’-Phosphopantetheine is membrane-permeable and acts as a CoA precursor, a prosthetic group, and a reactive oxygen species (ROS) inhibitor. 4’-Phosphopantetheine binds covalently to rat liver fatty acid synthase, modifies the conserved serine residue in the PKS/NRPS carrier protein domain, and serves as a substrate for CoA synthase and PPAT. 4’-Phosphopantetheine undergoes non-catalytic exchange on rat liver fatty acid synthase, with a faster turnover rate than that of the enzyme complex, and restores intracellular CoA levels in cells with impaired de novo biosynthesis. 4’-Phosphopantetheine rescues phenotypes induced by CoA deficiency, normalizes PKAN-related biomarkers, restores mitochondrial enzyme activity, and alleviates vascular endothelial damage. 4’-Phosphopantetheine shows biological stability in serum, acts as a prosthetic group and degradation product of ACP, and inhibits the formation of atherosclerotic plaques. 4’-Phosphopantetheine can be used in the research of brain iron accumulation neurodegenerative diseases, pantothenate kinase-associated neurodegeneration, CoASY protein-associated neurodegenerative diseases, coronary heart disease, and atherosclerosis .