细菌细胞外囊泡作为可调节的平台,用于阴道药物输送
Darby Steinman1, Varunaa Sri Hemanth Kumar1, Ryan A McIlvaine1,2
1Fischell Department of Bioengineering, University of Maryland, College Park, MD, 20742.
bioRxiv : the preprint server for biology
|July 15, 2025
概括
细菌细胞外囊泡 (bEVs) 提供了一个可扩展的,低成本的平台,用于向的阴道药物输送. 这项研究证明了它们在治疗妇科和产科疾病时的安全性和有效性.
科学领域:
- 生物技术是生物技术.
- 纳米医学是一种纳米医学.
- 妇女健康 妇女健康
背景情况:
- 对于妇科和产科疾病的新型治疗平台存在着迫切的需求.
- 使用纳米粒子配方的阴道药物输送显示出希望,但在可扩展性和成本方面面临挑战.
- 细菌细胞外囊泡 (bEVs) 是一种低成本,可调节的替代疗法.
研究的目的:
- 评估细菌细胞外囊泡 (bEVs) 作为阴道药物输送的治疗载体.
- 为了证明治疗性蛋白质的装载到bEV中,并优化装载效率.
- 评估bEVs在阴道环境中的安全性和有效性以及它们在女性生殖道中的保留.
主要方法:
- 工程 *Escherichia coli* 尼斯尔1917年生产装有模型蛋白质moxNeonGreen.Green的bEVs.
- 优化了细菌生长参数,以增强对bEVs的蛋白质加载.
- 对阴道上皮细胞,宫内细胞和阴道细菌进行了体外研究,以评估bEV的影响.
- 随着时间的推移,在鼠雌性生殖道中评估了bEV的保留.
主要成果:
- 成功地将模型蛋白质moxNeonGreen装入了bEVs.
- 通过优化生长条件,证明了对bEVs的蛋白质负载增加.
- 在实验室中证实bEV对阴道上皮细胞,内细胞或阴道细菌没有不良影响.
- 观察到bEVs在小鼠雌性生殖道中的保留时间超过6小时.
结论:
- 基因工程bEV提供了一个可行的,可定制的平台,用于阴道药物输送.
- 这种方法解决了开发治疗妇科和产科疾病的挑战.
- bEV提供了一个有前途的,低成本的,可扩展的解决方案,用于推进妇女健康治疗.
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