克洛法胺纳米集群在实验性结核病中显示出高疗效,并改善了矛盾的肺炎
Krishna Jadhav1, Agrim Jhilta1, Raghuraj Singh1
1Pharmaceutical Nanotechnology lab, Institute of Nano Science and Technology (INST), Sector-81, Mohali, Punjab 160062, India.
Biomaterials advances
|September 1, 2023
概括
新的可吸入的克洛法胺纳米晶体有效打击耐药结核病 (TB) 并减少炎症. 这种新的配方改善了药物向肺部的输送,为抗击结核病超级细菌和悖论性炎症提供了一个有希望的新策略.
科学领域:
- 制药科学 制药科学
- 传染性疾病 传染性疾病
- 纳米技术纳米技术
背景情况:
- 结核病 (TB) 超级细菌和悖论性炎症 (PI) 对当前的抗结核疗法构成重大挑战.
- 克洛法齐明 (CLF) 是一款二线抗结核病药物,已显示出潜力,但具有不良的溶解性和低生物可用性.
- 有效的药物输送到肺部对于治疗肺结核和管理相关炎症至关重要.
研究的目的:
- 设计可吸入的克洛法胺纳米晶体 (CLF-NCLs),以克服溶解性差,并增强肺部沉积.
- 在试验室和小鼠结核病模型中评估CLF-NCLs的抗菌菌疗效和抗炎作用.
- 研究CLF-NCLs在治疗结核病中的悖论性炎症方面的潜力.
主要方法:
- 克洛法胺纳米晶体 (CLF-NC) 使用微流体技术制备,并喷雾干燥成微型纳米集群 (CLF-NCL).
- 在体外测试中,使用Resazurin微测试 (REMA) 评估了抗菌菌活性.
- 活体疗效在气溶感染的小鼠中进行了评估,评估了细菌负担,肺组织学和炎症调解剂 (TNF-α,IL-6,MMP-2).
主要成果:
- 在试验室中,CLF-NCLs显著杀死了毒性Mycobacterium tuberculosis,其最小抑制度 (MIC) 约为0.62μg/ml.
- 与口服CLF相比,吸入的CLF-NCLs显著降低了结核病感染小鼠的肺部细菌负担.
- 组织学分析显示,在CLF-NCL吸入后,改善了肺病理和减少了炎症,以及减弱的促炎媒介.
结论:
- 吸入式CLF-NCL代表了增强抗结核病治疗的有希望的配方.
- 这种方法有效地将克洛法齐明输送到肺部,提高疗效,并可能减轻悖论性炎症.
- CLF-NCLs提供了一种可行的策略来对抗耐药结核病及其相关的炎症并发症.
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