PDI Inhibitor IV, LOC14

A cell-permeable, blood brain barrier permeable, orally bioavailable, non-toxic benzothiazolone derived compound that acts a potent, reversible and non-covalent inhibitor of protein disulfide isomerase (PDI) reductase activity (K_d = 61.7 nM for PDIa). Shown to bind to PDIa stoichiometrically (1:1), adjacent to the active site, and enforce PDI to adopt an oxidized conformation. Dose-dependently rescues both PC12 cells (EC₅₀ = 500 nM) and medium spiny neurons from mutant huntingtin neurotoxicity. Exhibits favorable microsomal (k = 0.0016, t_1/2 = 438.7 min, CL_int = 0.17 ml/min/g mouse liver) and blood plasma stability (k = 0.0049, t_1/2 = 144 min and 49.9% remains after 2 h incubation) and is well tolerated in mice (20 mg/kg, p.o.).

A cell-permeable, blood brain barrier permeable, orally bioavailable, non-toxic benzothiazolone derived compound that acts a potent, reversible and non-covalent inhibitor of protein disulfide isomerase (PDI) reductase activity (K_d = 61.7 nM for PDIa). Shown to bind to PDIa stoichiometrically (1:1), adjacent to the active site, and enforce PDI to adopt an oxidized conformation. Dose-dependently rescues both PC12 cells (EC₅₀ = 500 nM) and medium spiny neurons from mutant huntingtin neurotoxicity. Exhibits favorable microsomal (k = 0.0016, t_1/2 = 438.7 min, CL_int = 0.17 ml/min/g mouse liver) and blood plasma stability (k = 0.0049, t_1/2 = 144 min and 49.9% remains after 2 h incubation) and is well tolerated in mice (20 mg/kg, p.o.).

Please note that the molecular weight for this compound is batch-specific due to variable water content. Please refer to the vial label or the certificate of analysis for the batch-specific molecular weight. The molecular weight provided represents the baseline molecular weight without water.

Cell permeable: yes

Primary Target
PDI

Reversible: yes

Packaged under inert gas

Toxicity: Standard Handling (A)

Use only anhydrous DMSO for reconstitution.

Kaplan, A., et al. 2015. Proc. Natl. Acad. Sci. USA112, In press.

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany