姜黄素, AR
Product Name： Curcumin
别名:姜黄素 ;天然黄3，二阿魏酸甲烷，（E,E）-1，7-双（4-羟基-3-甲氧基苯基）-1，6-庚二烯-3，5-二酮姜黄素
CAS号:458-37-7
分子式:C21H20O6
分子量:368.38
介绍： 易溶于冰乙酸，能溶于醇，不溶于醚带淡绿色荧先，溶于碱呈红棕色，加酸于碱液后变为淡黄色并析出姜黄素沉淀，溶于浓硫酸带黄红色，不溶于水。
用途： 酸碱指示剂，pH7.8(黄)～9.2(红棕)。显色反应测铍、锆和镁，硼酸盐和试剂。 一种天然酚性物质，抗肿瘤和消炎物质，并具有抗氧化特性，能诱导癌细胞凋亡。
熔点： 183℃
特定比重： 0.93
生化和生理学机理：
Description：
IC50 Value： N/A
Curcumin is a natural phenolic compound with impressive antioxidant properties. Curcumin is recently proved to exert its chemopreventive effects partly through the activation of nuclear factor (erythroid-2 related) factor 2 (Nrf2) [1]. Curcumin possesses chemopreventive properties against several types of cancer, but the molecular mechanisms by which it induces apoptosis of cancer cells and inhibits cancer cell proliferation are not clearly understood.
in vitro： curcumin induced the expression of forkhead box protein O1 (FOXO1) through activation of extracellular signal-regulated kinase 1/2 signaling. Curcumin inhibited cell proliferation, which was associated with upregulation of the cyclin-dependent kinase inhibitors, p27 and p21, and downregulation of cyclin D1 [2]. Treatment of AGS and HT-29 cells with curcumin enhanced the cleavage of procaspase-3, -7, -8 and -9. Meanwhile, curcumin induced endoplasmic reticulum (ER) stress and mitochondrial dysfunction as evidenced by up-regulation of CCAAT/enhancer binding protein homologous protein (CHOP), phosphorylation of JNK and down-regulation of SERCA2ATPase, release of cytochrome c, decrease of Bcl-2 and reduction of mitochondrial membrane potential in both AGS and HT-29 cells [3]. Curcumin upregulated protein level of NF-kappaB inhibitor IkappaBalpha and downregulated protein levels of c-Jun and AR in prostate cancer cell line [5].
in vivo： Chronic treatment with curcumin significantly reversed the CMS-induced behavioral abnormalities (reduced sucrose preference and decreased locomotor activity) in stressed rats. Additionally, curcumin effectively inhibited cytokine gene expression at both the mRNA and the protein level and reduced the activation of NF-κB [4].
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