mtorc1

Rapamycin (AY 22989) is a natural product of macrolides, an mTOR inhibitor with specificity (HEK293 cells: IC50=0.1 nM). Rapamycin has immunosuppressive activity and induces autophagy.

(+)-Usnic acid (D-Usnic Acid) is a naturally occurring dibenzofuran derivative found in several lichen species.

Glucosylsphingosine (Lyso-Gb1) is a naturally occurring glycosyl ceramide, a metabolite of GBA (acid β-glucosidase), involved in cellular recognition, signaling, and intercellular interactions.Glucopsychosine accumulates in certain neurodegenerative diseases (e.g., Gaucher disease), disrupts lysosomal function through activation of mammalian target of rapamycin complex 1 (mTORC1), and is a noncompetitive inhibitor of glucocerebrosidase.

Dihydroevocarpine (1-methyl-2-tridecylquinolin-4-one) induces AML cytotoxicity, apoptosis and G0 G1 blockade, and inhibits tumor growth by inhibiting mTORC1 2 activity and the mTOR pathway in an acute myeloid leukemia (AML) xenograft model.

Timosaponin AIII (Timosaponin A3) induces autophagy in HeLa cells followed by apoptotic cell death (IC50: 10 μM). The Timosaponin AIII cellular response is mediated via inhibition of mTORC1 and induction of ER stress (IC50: 2.5 μM, BT474 cells; 6 μM, MDAMB231). The Timosaponin AIII pro-apoptotic response is selective for tumor cells over normal cells but autophagy is induced in both.