通过抗微生物排泄内分泌管的抗菌来改善小结节狭窄症
Matthew R Aronson1,2,3, Amrita Mehta1,2, Ryan M Friedman1,2
1Department of Bioengineering, University of Pennsylvania, Philadelphia, PA USA.
Cellular and molecular bioengineering
|October 9, 2023
概括
通过调节呼吸道微生物群,抗微生物排泄的内管 (AMP-ETs) 预防儿科亚结节狭窄症. 这减少了炎症,并通过减少T细胞和巨细胞的反应来解决狭窄症.
科学领域:
- 生物医学工程 生物医学工程
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
背景情况:
- 儿科下喉狭窄 (SGS) 是由于长时间的输内管道而产生的,由于痕组织而导致呼吸道狭窄,需要手术.
- 调节喉内微生物群已经成为预防SGS的新策略.
研究的目的:
- 为了研究一种正在申请专利的抗微生物排泄内管 (AMP-ET) 在预防和解决SGS方面的有效性.
- 评估AMP-ET调节气道微生物群的能力,减少炎症和减轻狭窄.
主要方法:
- 用持续抗微生物 (AMP) 释放层制造小鼠大小的AMP-ET.
- 在体外和体外验证AMP-ETs对黄金葡萄球菌和Pseudomonas aeruginosa生物膜的验证.
- 在SGS小鼠模型中对AMP-ETs的体内评估,评估免疫反应和狭窄症的严重程度.
主要成果:
- 可复制AMP释放在体外和体外表现出显著的细菌抑制.
- 在体内,AMP-ETs消除了狭窄,防止SGS诱导的喉内复合体 (LTC) 中的痕组织加厚.
- 用AMP-ETs治疗逆转了SGS气道中高T细胞和巨细胞的透,表明炎症减少.
结论:
- 开发的AMP-ET平台有效调节气道微生物群.
- AMP-ETs可以减少由巨细胞和T细胞介导的炎症反应.
- 这种方法对解决SGS在体内进展的前景充满希望.
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