来自Helianthus tuberosus和Vernonanthura squamulosa的具有Leishmanicidal潜力的生物活性化合物
Rachel Nápoles Rodríguez1, María Laura Arreguez2, Aldana M Corlatti1,3
1CONICET-Universidad de Buenos Aires, Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Autonomous City of Buenos Aires C1113AAD, Argentina.
Molecules (Basel, Switzerland)
|March 13, 2025
概括
黑兰丁 (Heliangin) 是一种来自Helianthus tuberosus的化合物,对莱什曼尼亚寄生虫表现出强烈的活性. 结合Glucantime,它有效地治疗小鼠皮肤雷什曼病,提供了一个有前途的新疗法选择.
科学领域:
- 自然产品 化学 化学
- 寄生虫学的寄生虫学
- 热带医学 热带医学
背景情况:
- 莱什曼病是一种被忽视的热带疾病,由于毒性和耐药性,治疗选择有限.
- 阿斯特拉科家族是已知的具有leishmanicidal活性化合物的来源.
- 河兰 (Helianthus tuberosus) 和温农 (Vernonanthura squamulosa) 在莱什曼病治疗中的潜力正在被探索.
研究的目的:
- 为了评估H. tuberosus和V. squamulosa提取物的抗莱什曼的活性.
- 为了分离和评估sésquiterpene乳heliangin和glaucolideA.的leishmanicidal活动.
- 在皮肤莱什曼病的动物模型中研究阳的疗效.
主要方法:
- 来自H. tuberosus和V. squamulosa的二甲提取物的制备和测试,用于对抗Leishmania amazonensis promastigotes.
- 阳和格劳科利德A的分离,然后对它们对前列腺菌和细胞内腺菌的活性进行评估.
- 在L. amazonensis感染的BALB/c小鼠中,单独或与Glucantime结合使用Heliangin疗效的体内评估.
主要成果:
- 这两种H. tuberosus和V. squamulosa的提取物都显示出对L. amazonensis promastigotes的显著抑制.
- 阳素对促性质细胞 (IC50 = 9.3 μM) 和细胞内质细胞 (IC50 = 0.8 μM) 具有强烈的活性.
- 在皮肤莱什曼病的小鼠模型中,Heliangin与Glucantime相结合显著降低了病变进展和寄生虫负荷.
结论:
- 氨酸表现出显著的抗莱什曼性活性,特别是对细胞内巨菌的活性.
- 氨酸显示了皮肤莱什曼病的治疗潜力,特别是在与现有药物结合使用时.
- 这项研究突出显示,氨酸是开发新型莱什曼病治疗的有希望的候选者.
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