A phosphoproteomic and transcriptomic analysis of carnosine’s action on signaling in glioblastoma

Previous studies demonstrated that carnosine affects signaling molecules of different pathways in a number of experimental models. However, the primary targets of carnosine are still unknown and its effect on complex signal transduction has not been revealed. This is especially the case for pathways that could be responsible for the anti-neoplastic effect of the dipeptide. Therefore, we performed a phosphoprotein antibody array and RNA-seq experiments with U87 glioblastoma cells treated with 50 mM carnosine for 24h, in order to obtain a precise and coherent picture of carnosine’s influence on signal transduction in single tumor cells. mRNA of U87 Glioblastoma cells treated with or without carnosine was analyzed by deep sequencing