Strophanthidin 是一种天然的心脏糖苷。Strophanthidin 0.1 和 1 nmol/L 增加 Na+/K+-ATPase 活性，1~100 μ mol/L 抑制 Na+/K+-ATPase 活性，而 Strophanthidin 10 和 100 nmol/L 对 Na+/K+-ATPase活性无影响。Strophanthidin 增加舒张期和收缩期胞内 Ca2+ 浓度。
货号:ajcx36444
CAS:66-28-4
分子式:C23H32O6
分子量：404.5
溶解度:Ethanol : 25 mg/mL (61.80 mM; Need ultrasonic)
纯度：98%
存储：Store at -20°C
库存：现货

Background:

Strophanthidin is a naturally available cardiac glycoside[1]. Strophanthidin 0.1 and 1 nmol/L increases and 1~100 µmol/L inhibits the Na+/K+-ATPase activities, but Strophanthidin 10 and 100 nmol/L does not affect Na+/K+-ATPase activities in cardiac sarcolemmal[2]. Strophanthidin increases both diastolic and systolic intracellular Ca2+ concentration[3].

Strophanthidin (0~10 μM; 24 hours; MCF-7, A549, and HepG2 cells) is effective at suppressing the growth of cancer cells and has no toxicity in normal cells[1].Strophanthidin (0.5 to 500 µM; PBMCs) does not show significant cytotoxicity in PBMCs. Strophanthidin (2 µM; MCF-7 cells) can arrest cell cycle at the G2/M phase[1].Strophanthidin (MCF-7, A549, and HepG2 cells) is effective at suppressing the growth of cancer cells and has no toxicity in normal cells. Strophanthidin (MCF-7, A549, and HepG2 cells) inhibits the expression of checkpoint and cyclin-dependent kinases in three cancer cells compared to untreated controls. Strophanthidin can modulate the protein localization from the nucleus to the membrane as well as to the cytoplasm. Strophanthidin is a monosaccharide cardiac glycoside with one aglycone portion and without any sugar unit. Strophanthidin induces apoptosis by the attenuation of multiple biochemical signaling pathways and by arresting cell cycle at the G2/M phase through p53-dependent and p53-independent mechanisms[1].

[1]. Reddy D, et al. Strophanthidin Attenuates MAPK, PI3K/AKT/mTOR, and Wnt/β-Catenin Signaling Pathways in Human Cancers. Front Oncol. 2020;9:1469. Published 2020 Jan 17.
[2]. Su SW, et al. Relationship between cardiotonic effects and inhibition on cardiac sarcolemmal Na+,K+-ATPase of strophan-thidin at low concentrations. Acta Pharmacol Sin. 2003;24(11):1103-1107.
[3]. Bennett DL, et al. Strophanthidin-induced gain of Ca2+ occurs during diastole and not systole in guinea-pig ventricular myocytes. Pflugers Arch. 1999;437(5):731-736.