产品说明

一般描述

7α,25-dihydroxycholesterol (7α,25-OHC) is synthesized by the hydroxylation of cholesterol by the action of enzyme cholesterol 25-hydroxylase (CH25H) and cytochrome P450, family 7, subfamily b, polypeptide 1 (CYP7B1). The catabolic breakdown of 7α,25-OHC to bile acid precursors is catalyzed by the enzymes hydroxy-Δ-5-steroid dehydrogenase, 3β- and steroid Δ-isomerase 7 (HSD3B7).

应用

7α,25-dihydroxycholesterol has been used:

• as a G-protein-coupled receptor 183 ( GPR183) ligand in chemotaxis assay and intracellular cytokine staining method and in fluorescence-activated cell sorting (FACS) analysis of natural killer cells
• in oxysterol based calcium mobilization assay in Chinese hamster ovary (CHO) cells
• in competitive radioligand binding assay of Epstein-Barr virus-induced gene 2 (EBI2) expressing COS-7 cells

生化/生理作用

7α,25-dihydroxycholesterol (7α,25-OHC) serves as an endogenous ligand for G-protein-coupled receptor 183 (GPR183) or Epstein-Barr virus-induced gene 2 (EBI2). It plays a key role in the migration of type 3 innate lymphoid cells (ILC3) in the small intestine and colon. 7α,25-OHC mediates immune cell migration functionality by their chemoattractant property. Inhibition of 7α,25-OHC synthesis leads to impairment in the migration of B cells.

包装

5 mL Amber Glass Screw Cap Vial (700080P-1mg)

基本信息

产品性质

安全信息

产品说明

应用

7α,25-二羟基胆固醇已被用作G蛋白偶联受体183(Gpr183)的配体。

包装

5, 25 mg in glass bottle

生化/生理作用

7α,25-二羟基胆固醇 (7α,25-OHC)是孤儿GPCR受体EBI2 (GPR183)的一种有效选择性内源性配体，其EC₅₀值在皮摩尔范围内。新发现的EBI2-氧甾醇信号通路已被证明在适应性免疫应答中具有重要作用，包括驱动免疫细胞迁移。 体外 和 体内 研究表明，7α,25-OHC可以作为趋化因子指导B细胞、T细胞和树突状细胞的迁移。
7α,25-二羟基胆固醇具有阻断T细胞活化早期步骤的能力。

基本信息

产品性质

安全信息