益生菌化和工程使膀粘膜修复的一次性治疗成为可能
Menglu Li1, Shengkai Jin2, Yichen Lu3
1Department of Urology, Jiangnan University Medical Center, Wuxi, 214000, China; Institute of Urology, Wuxi School of Medicine, Jiangnan University, Wuxi, 214000, China; Department of Urology, Wuxi Medical Center, Nantong University, Nantong, 226007, China.
Biomaterials
|February 2, 2025
概括
这项研究引入了一种用于修复膀粘膜的新型益生菌疗法. 工程细菌通过单次治疗提供氨酸 (HA),提高囊炎治疗的便利性和有效性.
科学领域:
- 生物技术是生物技术.
- 再生医学是一种再生医学.
- 微生物学 微生物学
背景情况:
- 膀粘膜损伤导致囊炎,通常用导管和氨酸 (HA) 灌注等侵入性方法治疗.
- 目前的治疗方法由于具有侵入性,因此降低了患者的服从性和治疗效果.
研究的目的:
- 开发一种方便,有效和安全的一次性益生菌疗法,用于膀粘膜修复.
- 为了设计一种能够在超声波控制下分泌HA的益生菌株,并准发炎的膀部位.
主要方法:
- 设计了一种生物相容的益生菌,以分泌高分子量HA,由超声波触发.
- 开发了一种细菌适应策略,以向膀炎症部位.
- 在小鼠模型中,通过单次静脉灌注注入工程细菌.
主要成果:
- 工程细菌粘附于受损的膀上皮,并不断分泌HA,形成保护性的生物膜.
- 证明了粘膜的加速修复,由增加的紧结蛋白表达 (occludin-1,ZO-1) 证明.
- 观察到促进炎症因素的显著减少 (约. 50%) 和动物运动行为恢复.
结论:
- 基于益生菌的一次性治疗有效地修复了膀粘膜,并减轻了小鼠模型中的囊炎症状.
- 与传统治疗相比,这种方法提供了更好的方便性,有效性和生物安全性.
- 工程生物材料为再生医学应用提供了一个有前途的战略.
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