正常化颗粒瘤血管和基质改善了药物输送,并减少了结核病感染子的细菌负担
Meenal Datta1,2, Laura E Via3, Véronique Dartois4,5
1Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN 46556.
概括
经过重新设计的FDA批准的药物,贝瓦齐祖马布和洛萨坦,通过向结构部件来使结核病颗粒瘤正常化. 这种宿主导治疗方法改善了药物输送,并显著减少了细菌负担,为结核病治疗提供了一种新的策略.
科学领域:
- 结核病研究 结核病研究
- 主体导向治疗方法 主体导向治疗方法
- 药理学 药理学是指药理学的学科.
背景情况:
- 结核病 (TB) 治疗主要依赖于抗生素,面临药物耐药性和分娩的挑战.
- 宿主导疗法 (HDT) 通过调节宿主反应提供了替代方案,重点是免疫调节.
- 结核病中的肺颗粒瘤由于异常的血管系统和细胞外矩阵 (ECM) 提出了独特的挑战.
研究的目的:
- 为了研究FDA批准的药物,贝瓦齐祖马布和洛萨坦,作为结核病的HDTs的重新用途的有效性.
- 评估这些HTT对颗粒瘤微环境正常化,药物输送和细菌负载减少的影响.
- 探索这些HTT在抗击结核病方面的潜在分子机制.
主要方法:
- 利用结核病的子模型来评估贝瓦西祖马布和洛萨坦作为HDTs.
- 评估了颗粒瘤内血管和ECM的正常化.
- 对抗结核病药物输送和减少细菌负担的改善.
- 在经过治疗的肺部和颗粒瘤组织上进行RNA测序分析.
主要成果:
- 洛萨坦治疗有效地减少了结核病颗粒瘤中的ECM和正常化的压缩血管.
- 结合的HTT (贝瓦西祖马布和洛萨坦) 增强了促炎性细胞因子的分泌,改善了抗结核药物的输送.
- HDT,单独和二线药物,显著降低了细菌负担.
- 观察到在纤毛状上皮细胞中对抗微生物和促炎基因的升调.
结论:
- 贝瓦西祖马布和洛萨坦是耐受性良好的,向肌体的HTT,可以使粒细胞微环境正常化.
- 这些重新定位的疗法通过增强药物输送和宿主反应来改善结核病的结果.
- 这些发现支持临床试验,在结核病患者中测试这种联合治疗方法.
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