Curcumin是一种天然酚类，是乙酰转移酶p300/CREB 结合蛋白特异性抑制剂，抑制组蛋白/非组蛋白的乙酰化和组蛋白乙酰转移酶依赖的染色质转录。它对NF-Κb和MAPKs有抑制作用，具有抗炎、抗氧化、抗增殖和抗血管生成等多种药理作用。

Curcumin is a phytopolylphenol pigment isolated from the plant Curcuma longa, commonly known as turmeric, with a variety of pharmacologic properties. Curcumin blocks the formation of reactive oxygen species, possesses anti-inflammatory properties as a result of inhibition of cyclooxygenases (COX) and other enzymes involved in inflammation; and disrupts cell signal transduction by various mechanisms including inhibition of protein kinase C. These effects may play a role in the agent's observed antineoplastic properties, which include inhibition of tumor cell proliferation and suppression of chemically induced carcinogenesis and tumor growth in animal models of cancer.

Curcumin induces the expression of forkhead box protein O1 (FOXO1) through activation of extracellular signal-regulated kinase 1/2 signaling. Curcumin inhibits cell proliferation, which was associated with upregulation of the cyclin-dependent kinase inhibitors, p27 and p21, and downregulation of cyclin D1[2]. Curcumin induces 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].

Chronic treatment with curcumin significantly reverses the CMS-induced behavioral abnormalities in stressed rats. Additionally, curcumin effectively inhibits cytokine gene expression at both the mRNA and the protein level and reduces the activation of NF-κB[4].

1×104 B16-R cells are cultivated as monolayer culture for 12 hr. They were then incubated in 200 μL of RPMI, 10% FBS containing curcumin at final concentrations from 1–100 μM in 96-multiwell plates for 24-48 hr. After these incubations, cells are washed twice in PBS and 500 μl of fresh culture medium containing MTT (0.3 mg/mL) are added for colorimetric assay. (Only for Reference)

458-37-7

C21H20O6

368.39

Natural Yellow 3;Indian Saffron;Diferuloylmethane;姜黄素;Turmeric yellow

DMSO:3.7 mg/mL (10 mM)
Ethanol:1.8 mg/mL (5 mM)
Powder: -20°C for 3 years
In solvent: -80°C for 2 years