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Haemanthamine

CAS No. : 466-75-1

MCE 站：Haemanthamine

产品活性：Haemanthamine 是从 Amaryllidaceae 植物中分离出来的一种蛇毒碱样生物碱，具有强大的抗癌活性。Haemanthamine 靶向核糖体以在翻译的延长阶段抑制蛋白质的生物合成。Haemanthamine 具有促凋亡，抗氧化剂，抗病毒，抗疟疾和抗惊厥活性。

研究领域：Apoptosis  |  Anti-infection

作用靶点：Apoptosis  |  Influenza Virus  |  Parasite

In Vitro: Haemanthamine (1-100 ?M; 24-48 hours; A2780 cells) treatment shows a time- and dose-dependent decrease in cell viability.
Haemanthamine (10 ?M; 24-72 hours; A2780 cells) treatment leads to a significant inhibition of A2780 cell proliferation.
Haemanthamine binds at the A-site cleft of the peptidyl transferase center on the large ribosomal subunit, creating unique molecular interactions with the 25S rRNA. Haemanthamine has a highly specific inhibitory effect on pre-rRNA processing, leading to the activation of a p53-dependent antitumoral surveillance pathway known as nucleolar stress.

In Vivo: A pharmacokinetic study of Haemanthamine in rats shows a rapid distribution phase of 30 min, a half-life of 70.4 min, and a major clearance through renal elimination. The high distribution volume of 13.7 L/kg suggests a high intracellular penetration, and its plasmatic concentration remains higher than 1 μM for at least 1 hr after a single 10-mg/kg administration.

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