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24-dehydro Cholesterol
本产品不向个人销售，仅用作科学研究，不用于任何人体实验及非科研性质的动物实验。
24-dehydro Cholesterol图片
CAS NO:313-04-2
包装与价格：
包装价格(元)
1mg电议
5mg电议
10mg电议
25mg电议

产品介绍
24-脱氢胆固醇是一种类似于胆固醇的分子。
Cas No.313-04-2
别名胆固醇EP杂质B (Desmosterol)
化学名(3β)-cholesta-5,24-dien-3-ol
Canonical SMILESC/C(C)=C/CC[C@@H](C)[C@@]1([H])CC[C@@]2([H])[C@]3([H])CC=C4C[C@@H](O)CC[C@]4(C)[C@@]3([H])CC[C@@]21C
分子式C27H44O
分子量384.6
溶解度0.25mg/mL in ethanol, 50mg/mL in DMF
储存条件Store at -20°C
General tipsFor obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping ConditionEvaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request
产品描述

24-dehydro Cholesterol is an immediate precursor to cholesterol in the Bloch pathway of cholesterol biosynthesis. Structurally, it varies from cholesterol only by a single double bond at carbon 24 and has been used as cholesterol substitute in cellular membrane studies. [1] During brain development, 24-dehydro cholesterol transiently accumulates, composing up to 30% of total brain sterol, where it is poised to rapidly enrich membrane sterols. [2] However, defects in cholesterol synthesis can lead to a condition called, desmosterolosis, which results in an accumulation of excess 24-dehydro cholesterol. [3] 24-dehydro Cholesterol has been reported to activate liver X receptor-target genes in both the liver of cholesterol-free mice and in cholesterol-starved macrophage foam cells in atherosclerotic lesions.[4][5]

Reference:
[1]. Huster, D., Scheidt, H.A., Arnold, K., et al. Desmosterol may replace cholesterol in lipid membranes. Biophys. J. 88(3), 1838-1844 (2005).
[2]. Jansen, M., Wang, W., Greco, D., et al. What dictates the accumulation of desmosterol in the developing brain? FASEB J. 27(3), 865-870 (2013).
[3]. Clayton, P.T. Disorders of cholesterol biosynthesis. Arch. Dis. Child. 78(2), 185-189 (1998).
[4]. Heverin, M., Meaney, S., Brafman, A., et al. Studies on the cholesterol-free mouse: Strong activation of LXR-regulated hepatic genes when replacing cholesterol with desmosterol. Arterioscler. Thromb. Vasc. Biol. 27(10), 2191-2197 (2007).
[5]. Spann, N.J., Garmire, L.X., McDonald, J.G., et al. Regulated accumulation of desmosterol integrates macrophage lipid metabolism and inflammatory responses. Cell 151(1), 138-152 (2012)