Glucosylceramidesynthase-IN-3 (compound BZ1) is a highly potent, brain-penetrant, and orally active inhibitor of glucosylceramidesynthase (GCS), exhibiting an IC50 value of 16 nM for human GCS. This compound, designated as Glucosylceramidesynthase-IN-3, finds potential applications in Gaucher's disease research [1] [2].
Genz-123346 blocks the conversion of ceramide to glucosylceramide (GL1) and inhibits GM1 with an IC50 value of 14 nM. Genz-123346 is a potent, orally available glucosylceramidesynthase inhibitor.
(-)-L-threo-PDMP is an enhancer of ganglioside biosynthesis. The (-)-L-threo-PDMP (1S,2S) isomer is the active stimulatory component of DL-threo-PDMP in contrast to (+)-D-threo-PDMP , which is an inhibitor of glucosylceramide synthetase. (-)-L-threo-PDMP upregulates GM3, GD3, and GQ1b synthase levels, which are glycosyltransferases involved in ganglioside biosynthesis, and increases ganglioside levels in cells. It increases neurite outgrowth and synapse formation in vitro and improves retention of a long-term memory learned prior to forebrain ischemia in rats when administered following ischemia at a dose of 40 mg/kg per day.
PDMP is a ceramide analog first prepared in a search for inhibitors of glucosylceramidesynthase. PDMP has two adjacent chiral centers (C1 and C2) allowing for the formation of four possible isomers. PDMP contains all four of these stereoisomers. PDMP inhibits glucosylceramidesynthase by 90% when used at a concentration of 0.8 μM in MDCK cell homogenates, however, the ability to inhibit glucosylceramidesynthase has been found to reside in the D-threo (1R,2R) enantiomer. The D-threo PDMP enantiomer is also responsible for inhibition of β-1,4-galactosyltransferase 6 and prevention of lactosylceramide synthesis, which is a promotor of neuroinflammation in mice during chronic experimental autoimmune encephalomyelitis (EAE), a model of multiple sclerosis. PDMP enhances curcumin-induced inhibition of proliferation, JNK activation, and Akt inhibition, as well as induction of apoptosis in WM-115 melanoma cells in vitro.
D-threo-PPMP is a glucosylceramide (GlyCer) synthetase inhibitor.1,2It is the active enanantiomer and enzymatic inhibitory component of the racemic DL-threo-PPMP . In MDCK kidney epithelial cells, D-threo-PPMP induces a 70% reduction in cell growthin vitroat 20 μM and significantly inhibits DNA synthesis at 3 μM.3[Matreya, LLC. Catalog No. 1865] 1.Shen, W., Henry, A.G., Paumier, K.L., et al.Inhibition of glucosylceramidesynthase stimulates autophagy flux in neuronsJ. Neurochem.129(5)884-894(2014) 2.Lee, L., Abe, A., and Shayman, J.A.Improved inhibitors of glucosylceramidesynthaseJ. Biol. Chem.274(21)14662-14669(1999) 3.Abe, A., Inokuchi, J.-i., Jimbo, M., et al.Improved inhibitors of glucosylceramidesynthaseJ. Biochem.111(2)191-196(1992)
(+)-D-threo-PDMP is a ceramide analog and is one of the four possible stereoisomers of PDMP . (+)-D-threo-PDMP is an inhibitor of glucosylceramidesynthase. It inhibits glucosylceramidesynthase by 50% when used at a concentration of 5 μM in an enzyme assay. (+)-D-threo-PDMP is the active component of racemic DL-threo-PDMP .
Deoxynojirimycin (dNM) tetrabenzyl ether is an intermediate for the synthesis of glucosylceramidesynthase inhibitors such as 1-dNM, a glucose analog that potently inhibits α-glucosidase I and II.
Ibiglustat (Venglustat) succinate is an orally active, brain-penetrant inhibitor of glucosylceramidesynthase (GCS). It is utilized in the investigation of Gaucher disease type 3, Parkinson's disease associated with GBA mutations, Fabry disease, GM2 gangliosidosis, and autosomal dominant polycystic kidney disease.