| Description | Niranthin is a potent anti-leishmanial agent, inhibits the relaxation activity of heterodimeric type IB topoisomerase of L. donovani and acts as a non-competitive inhibitor interacting with both subunits of the enzyme. Niranthin also exhibits anti-hepatitis B virus, antiinflammatory and antiallodynic actions. |
| In vitro | 本研究旨在通过HepG2.2.15细胞和感染鸭乙型肝炎病毒(DHBV)的鸭子作为体外和体内模型评价Niranthin对乙型肝炎病毒的抗病毒活性。通过提取和色谱程序从Phyllanthus niruri L. (大戟科)中分离出Niranthin，并对其进行体外及体内的抗乙型肝炎病毒活性评估。体外实验使用人类HBV转染的肝细胞系HepG2.2.15。体内抗病毒活性通过测定Niranthin口服(i.g.)后0、7、14、17天内的HBV复制、HBsAg、HBeAg、ALT与AST的表达来评估，剂量分别为25、50和100 mg/kg/day，连续给药14天。在HepG2.2.15细胞中，经Niranthin处理144小时后，HBsAg和HBeAg的分泌显著减少，HBsAg的IC50值为15.6 μM，HBeAg的IC50值为25.1 μM。在DHBV感染的鸭子中，Niranthin显著降低了血清DHBV DNA、HBsAg、HBeAg、ALT和AST的水平。此外，肝脏病理变化的分析确认了Niranthin的肝脏保护效果。结论：实验数据证明，Niranthin具有体外和体内抗乙型肝炎病毒活性。 |
| molecular weight | 432.51 |
| Molecular formula | C24H32O7 |
| CAS | 50656-77-4 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| Solubility | DMSO: 65 mg/ml (150.29 mM) |
| References | 1. In vitro and in vivo anti-hepatitis B virus activities of the lignan niranthin isolated from Phyllanthus niruri L. J Ethnopharmacol. 2014 Sep 11;155(2):1061-7. |