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恩多利辛在来自细菌性阴道炎妇女的阴道样本中选择性地杀死Gardnerella ex vivo
Lenka Podpera Tisakova1, Timo Schwebs1, Rocío Berdaguer1
1BioNTech R&D (Austria) GmbH, Vienna, Austria.
NPJ biofilms and microbiomes
|August 12, 2025
概括
复发性细菌性阴道炎 (BV) 可以用BNT331-endolysin (BNT331-EL) 治疗,该药物向Gardnerella生物膜. 活体研究表明,BNT331-EL显著减少了加德内拉菌,同时保留了有益的乳酸菌.
科学领域:
- 微生物学 微生物学
- 妇科 妇科 妇科 妇科
- 药理学 药理学是指药理学的学科.
背景情况:
- 细菌性阴道炎 (BV) 是一种常见的疾病,通常用抗生素治疗,可能导致复发性感染.
- 果菌 (Gardnerella) 种类通过在阴道上皮质细胞上形成生物膜,在BV病变发生过程中发挥关键作用.
- 目前的治疗方法有局限性,需要新的治疗方法.
研究的目的:
- 为了评估复合内素BNT331-endolysin (BNT331-EL) 对BV女性阴道样本中的Gardnerella的ex vivo药理动力学.
- 评估BNT331-EL对加德内拉菌生物膜和阴道微生物组合的影响.
- 为了确定首次在人身上进行临床试验的适当剂量.
主要方法:
- 来自49名被诊断为BV的女性的阴道样本被用于BNT331-EL的ex vivo治疗.
- 进行了全基因组测序,以表征微生物社区状态类型.
- 在随着时间的推移使用不同度的BNT331-EL治疗后,评估了细菌活力和生物膜破坏.
主要成果:
- 在19小时内,BNT331-EL在20-50微克/毫升度下显著减少 (≥94%) 活跃的加德内拉菌.
- 治疗有效地破坏了Gardnerella生物膜.
- 虽然Lactobacillus iners减少了,但Lactobacillus crispatus在一些样本中呈现出增殖,这表明具有选择性的效应.
结论:
- 在BV患者样本中,BNT331-endolysin显示出对Gardnerella有强烈的ex vivo活性,包括生物膜破坏.
- 这些发现支持BNT331-EL作为细菌性阴道炎的向治疗的潜力.
- 该研究成功地为即将举行的首次在人身上临床试验的剂量选择提供了信息.
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