4',7-二二黄结合碳纳米管配方表明,对Leishmania寄生虫的疗效有所改善
Santanu Sasidharan1, Prakash Saudagar1
1Department of Biotechnology, National Institute of Technology, Warangal 506004, Telangana, India.
Biochimica et biophysica acta. General subjects
|July 18, 2023
概括
研究人员开发了新的4 4
科学领域:
- 药用化学 医学化学
- 纳米技术纳米技术
- 寄生虫学的寄生虫学
背景情况:
- 莱什曼病是一种被忽视的热带疾病,由于药物毒性和低效率,治疗选择有限.
- 现有的莱什曼病药物存在重大缺点,需要开发新的治疗药物.
研究的目的:
- 为了合成和表征4',7-二基黄联多壁碳纳米管 (47DHF-MWCNTs).
- 评估47DHF-MWCNTs对Leishmania donovani的抗莱什曼病毒活性.
- 调查新型化合物的作用机制和细胞毒性.
主要方法:
- 47DHF-MWCNTs通过Steglich化4',7-二基黄到酸氧化多壁碳纳米管上的合成.
- 使用紫外线光谱和泽塔电位测量以确认稳定性的表征.
- 通过IC50测定对前性和前性形式,感染性指数和选择性指数进行抗莱什曼病毒活性的评估.
- 评估细胞毒性对巨细胞和活性氧物种 (ROS) 生成的前列腺细胞.
主要成果:
- 合成的47DHF-MWCNTs表现出良好的稳定性 (zeta值为35mV) 和药物加载效率 (84%).
- 该化合物表现出强烈的抗莱什曼性活性,IC50值较低 (0.051微克/毫升用于前列腺炎,0.072微克/毫升用于前列腺炎).
- 47DHF-MWCNTs显示出高选择性指数 (95) 和对巨细胞的低细胞毒性,ROS生成与抗莱什曼病机制有关.
结论:
- 新型47DHF-MWCNTs为莱什曼病治疗提供了一个有前途的新配方.
- 与现有药物相比,开发的结合物具有显著的抗莱什曼活性,细胞毒性降低.
- 这种ROS介导的机制表明了针对打击Leishmania donovani感染的有针对性的方法.
相关概念视频
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Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...
Antiprotozoal Agents
Leishmaniasis is a widespread parasitic disease caused by several Leishmania species. It affects millions of people each year and remains a major public health problem in endemic regions. First-line treatment relies on pentavalent antimonials, including meglumine antimoniate and sodium stibogluconate. Even so, how these drugs work has not been fully clear, especially their interaction with parasite-specific biochemical pathways. One key target is trypanothione reductase (TR), an enzyme that...


