Euphorbia Factor L1 是续随子中的二萜类化合物，可降低 BCL-2，PI3K，Akt 和 mTOR 蛋白和 mRNA 水平，上调 Caspase-9 and Caspase-3 蛋白水平。它可诱导自噬，具有抗癌、抗脂肪生成、抗破骨细胞生成和多重耐药调节作用。

1. Euphorbia factor L1 can enhance the ATP hydrolysis activity of ABCB1 stimulated by verapamil. 2. Euphorbia factor L1 inhibits the efflux of ABCB1 in KBv200 and MCF-7/adr cells, does not downregulate their expression either in mRNA or protein level.

Euphorbiasteroid suppresses adipogenic differentiation of 3T3‐L1 cells, mainly at the early stage, and stimulates the AMPK signalling pathway. The anti-adipogenic effects of euphorbiasteroid could possibly be attributed to activation of the AMPK pathway, by decreasing the level of FAS and its up-regulators, including C/EBPs, PPAR-γ and SREBP-1c, without involving insulin signalling pathway[1]. Euphorbiasteroid could be a transport substrate for P-gp that can effectively inhibit P-gp-mediated drug transport and reverse resistance to anticancer drugs in MES-SA/Dx5 cells[2].

3T3‐L1 cells were treated with euphorbiasteroid at concentrations of 6.25, 12.5, 25 and 50?μM for 2?days in adipogenesis induction medium, 2?days in adipogenesis medium and 2?days in culture medium (CM) sequentially during differentiation. Intracellular triglycerides (TGs) were stained with Oil red O (ORO) solution.

76376-43-7

C32H40O8

552.664

大戟因子 L1;Euphorbiasteroid;大戟因子L1

Methanol:Soluble
Ethanol:Soluble
DMSO:37 mg/mL(66.9 mM)
Powder: -20°C for 3 years
In solvent: -80°C for 2 years