Sal003 increases eIF2α phosphorylation status by blocking eIF2a phosphatases in cells. In mouse embryonic fibroblasts (MEFs), Sal003 causes dissociation of polysomes by increasing eIF2a phosphorylation. Sal003 impairs late-long-term potentiation (L-LTP) in an ATF4-dependent mode in hippocampal slices from WT mice. In addition, eIF2α phosphorylation by Sal003 also enhances apoptotic signaling induced by subtilase cytotoxin (SubAB).
In vivo
Sal003 impairs spatial long-term memory formation in rats.