product name Ezetimibe
Description: Ezetimibe (also known as SCH-58235) is a potent, selective inhibitor of cholesterol absorption in the gut, it is used to lower cholesterol. Mechanistic studies show that this compound directly affects Niemann-Pick C1-like 1 (NPC1L1) and prevents it from incorporating into clathrin-coated vesicles. NPC1L1 is a polytopic transmembrane protein that facilitates absorption of cholesterol via clathrin/AP2-mediated endocytosis. By binding to NPC1L1, ezetimibe prevents endocytosis of this protein therefore blocking cholesterol transfer across membranes. Ezetimibe is used clinically to lower plasma cholesterol levels.
References: J Med Chem. 2004 Jan 1;47(1):1-9; J Nutr. 2005 Oct;135(10):2305-12; Arterioscler Thromb Vasc Biol. 2001 Dec;21(12):2032-8.
409.4
Formula
C24H21F2NO3
CAS No.
163222-33-1
Storage
-20℃ for 3 years in powder form
-80℃ for 2 years in solvent
Solubility (In vitro)
DMSO: 82 mg/mL (200.3 mM)
Water: <1 mg/mL
Ethanol: 82 mg/mL (200.3 mM)
Solubility (In vivo)
2% DMSO+30% PEG 300+5% Tween 80+ddH2O: 10mg/mL
Synonyms
SCH-58235
other peoduct :
| In Vitro |
In vitro activity: Ezetimibe produces a significant reduction in total cholesterol, LDL cholesterol, and triglycerides as well as a small but significant increase in HDL cholesterol. [1] Ezetimibe reduces cholesterol transport by 31% in Caco-2 cells, but not retinol transport. Ezetimibe results in a significant decrease in mRNA expression for the surface receptors SR-BI, Niemann-Pick type C1 Like 1 protein (NPC1L1), and ATP-binding cassette transporter, subfamily A (ABCA1) and for the nuclear receptors retinoid acid receptor (RAR)gamma, sterol-regulatory element binding proteins (SREBP)-1 and -2, and liver X receptor (LXR)beta as assessed by real-time PCR analysis in Caco-2 cells. Kinase Assay: Cell Assay: In differentiated Caco-2 cells incubated with a carotenoid (1 μM), ezetimibe (10 mg/L) inhibited carotenoid transport with 50% inhibition for ɑ-carotene and β-carotene. Also, it inhibited the transport of β-cryptoxanthin, lycopene and lutein:zeaxanthin(1:1). At the same time, ezetimibe inhibited cholesterol transport by 31%. Ezetimibe decreased the expression of the surface receptors SR-BI, ATP binding cassette transporter, subfamily A (ABCA1), Niemann-Pick type C1 Like 1 protein (NPC1L1) and retinoid acid receptor (RAR)γ, sterol-regulatory element binding proteins SREBP-1 and SREBP-2, and liver X receptor (LXR)β. |
|---|---|
| In Vivo | Ezetimibe reduces plasma cholesterol levels from 964 to 374 mg/dL, from 726 to 231 mg/dL, and from 516 to 178 mg/dL in the western, low-fat, and cholesterol-free diet mice, respectively. Ezetimibe reduces aortic atherosclerotic lesion surface area from 20.2% to 4.1% in the western diet group and from 24.1% to 7.0% in the low-fat cholesterol diet mice. Ezetimibe reduces carotid artery atherosclerotic lesion cross-sectional area by 97% in the western and low-fat cholesterol groups and by 91% in the cholesterol-free mice. Ezetimibe inhibits cholesterol absorption, reduces plasma cholesterol, increases high density lipoprotein levels, and inhibits the progression of atherosclerosis under western, low-fat, and cholesterol-free dietary conditions in apoE-/- mice. Ezetimibe potently inhibits the transport of cholesterol across the intestinal wall, thereby reducing plasma cholesterol in preclinical animal models of hypercholesterolemia. Ezetimibe eliminates exocrine pancreatic function from the intestine while maintaining bile flow, is established in the rat. Ezetimibe reduces plasma cholesterol and hepatic cholesterol accumulation in cholesterol-fed hamsters with an ED(50) of 0.04 mg /kg. |
| Animal model | In apolipoprotein E knockout (apoE-/-) mice, ezetimibe (3 mg/kg) inhibited cholesterol absorption by 90%. Ezetimibe reduced plasma cholesterol, increased HDL levels, and inhibits the progression of atherosclerosis [1]. In phase III human trials, Ezetimibe (10 mg) significantly reduced the levels of LDL cholesterol, total cholesterol and triglycerides and increased the level of HDL cholesterol. |
| Formulation & Dosage | |
| References | J Med Chem. 2004 Jan 1;47(1):1-9; J Nutr. 2005 Oct;135(10):2305-12; Arterioscler Thromb Vasc Biol. 2001 Dec;21(12):2032-8. |
