NB-598

NB-598 is a potent and competitive inhibitor of squalene epoxidase (SE), and suppresses triglyceride biosynthesis through the farnesol pathway. NB-598 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

NB-598 is a potent and specific inhibitor of mammalian squalene epoxidase (SQLE) th at suppresses triglyceride biosynthesis through the farnesol pathway. It decreases cholesterol levels in cells. NB-598 exhibit potent cytotoxic effects in subset of f neuroendocrine tumors, such as small cell lung cancers through accumulation of toxic squalene with in sensitive cancer cells.

[1] Xia F, et al. Inhibition of cholesterol biosynthesis impairs insulin secretion and voltage-gated calcium channel function in pancreatic beta-cells. Endocrinology. 2008 Oct;149(10):5136-45. DOI:10.1210/en.2008-0161
[2] Horie M, et al. Effects of NB-598, a potent squalene epoxidase inhibitor, on the apical membrane uptake of cholesterol and basolateral membrane secretion of lipids in Caco-2 cells. Biochem Pharmacol. 1993 Jul 20;46(2):297-305. DOI:10.1016/0006-2952(93)90418-v
[3] Horie M, et al. An inhibitor of squalene epoxidase, NB-598, suppresses the secretion of cholesterol and triacylglycerol and simultaneously reduces apolipoprotein B in HepG2 cells. Biochim Biophys Acta. 1993 May 20;1168(1):45-51. PMID:8504141