GP 1a is a potent agonist of cannabinoid receptor 2 (CB2) (EC50=7.1), as shown in cAMP, GTPγS and β-arrestin recruitment assays. GP 1a is approximately 30-fold more selective for CB2 receptors than CB1 receptors and increases P-ERK1/2 expression in HL-60 cells in vitro. GP 1a is beneficial for skin wound healing. GP 1a inhibits inflammation and fibrogenesis while promoting epithelial re-formation.

ATPγS tetralithium salt is a good substrate for RNA-stimulated nucleotide hydrolysis and RNA unwinding activity of eIF4A.

CCT020312 (0-9 µM, 24 h) treatment of medium HT29 cells for 24 h resulted in a concentration-dependent loss of P-S608-pRB signaling with linear response values between 1.8 and 6.1 µM.

BTdCPU is a potent activator of heme-regulated eIF2α kinase (HRI) . BTdCPU promotes eIF2α phosphorylation and induced apoptosis in resistant cell.

ISRIB (trans-isomer) is a potent inhibitor of PERK (IC50=5 nM) that restores protein translation and prevents SG formation in the presence of P-eIF2α.

GCN2-IN-6 is also a eIF2α kinase PERK inhibitor with an IC50 of 0.26 nM (in enzymatic assay) and 230 nM (in cells). GCN2-IN-6  is a potent, and orally available GCN2 inhibitor confirmed by in-house enzymatic (IC50 of 1.8 nM) and cellular assays (IC50 of 9