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Nat Commun:创造奇迹!感染超级细菌生命垂危的她,被噬菌体疗法成功拯救

2022-01-20 王聪 “生物世界”公众号

一个人可以多么不幸?她先是在机场遭遇自杀式爆炸而身受重伤,在医院抢救过程中,又感染了超级耐药菌,数次生命垂危。而她又是幸运的,治疗团队为她定制了噬菌体疗法,最终成功消灭了耐药菌,挽救了她的生命。

一个人可以多么不幸?她先是在机场遭遇自杀式爆炸而身受重伤,在医院抢救过程中,又感染了超级耐药菌,数次生命垂危。而她又是幸运的,治疗团队为她定制了噬菌体疗法,最终成功消灭了耐药菌,挽救了她的生命

2016年3月22日,比利时布鲁塞尔机场发生了一起自杀式爆炸,导致多人伤亡。其中有一名30岁的女性在爆炸中严重受伤,因左肋和大腿伤口大量出血而休克,之后被送进布鲁塞尔大学附属伊拉斯谟医院抢救,在进入ICU后,还出现了心脏骤停。经过积极治疗后,她保住了生命。

然而,就在住院后的第四天,她因为大腿伤口感染出现了感染性休克,检测显示,她感染了包括粪肠球菌、铜绿假单胞菌、阴沟肠杆菌和肺炎克雷伯菌等在内的多种细菌。而肺炎克雷伯菌是一种泛耐药菌,也就是所谓超级细菌,市面上的抗生素对其根本无可奈何。

之后她接受了两年多的抗生素治疗,依然没有效果。最终,医生选择了噬菌体疗法,噬菌体是一种病毒,可以感染和杀死细菌。

2022年1月18日,她的治疗团队将这项噬菌体治疗结果发表在了 Nature Communications 期刊,论文题为:Combination of pre-adapted bacteriophage therapy and antibiotics for treatment of fracture-related infection due to pandrug-resistant Klebsiella pneumoniae

治疗团队为她定制了一种噬菌体疗法,并进行了噬菌体-抗生素联合用药,三个月后她的伤口愈合,并没有了细菌感染的迹象。三年后,她恢复了活动能力,并且能参与体育运动。这项个案研究显示了噬菌体疗法治疗耐药菌感染的巨大潜力。

治疗团队通过筛选和改造,得到了一种对肺炎克雷伯菌最具杀伤力的噬菌体,该噬菌体对从这名患者体内提取的肺炎克雷伯菌菌株具有特异性。首先,治疗团队验证了这种噬菌体和抗生素组合在体外对患者体内提取的肺炎克雷伯菌菌株具有非常好的效果。

这个事先经过改造的噬菌体,被用在伤口局部给药,并和抗生素进行了联合使用。三个月后,这名患者的总体状况得到了改善,伤口开始愈合,已无细菌感染的迹象。

在这种噬菌体-抗生素联合治疗的三年后,这名患者恢复了活动能力,并且能参与体育运动。

论文作者认为,这项个案研究显示了噬菌体疗法治疗耐药菌感染中的巨大潜力。

他们还表示,目前大多数噬菌体疗法使用的是噬菌体混合物,但试验结果往往令人失望,这可能是因为他们低估了噬菌体的一些特性,例如靶标特异性和拮抗协同进化。而论文中的这项噬菌体疗法表明,使用单一的,进过改造的噬菌体,再联合抗生素治疗,或许是一种更好的噬菌体疗法。

原始出处:

Eskenazi, A., Lood, C., Wubbolts, J. et al. Combination of pre-adapted bacteriophage therapy and antibiotics for treatment of fracture-related infection due to pandrug-resistant Klebsiella pneumoniae. Nat Commun 13, 302 (2022). https://doi.org/10.1038/s41467-021-27656-z.

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    2022-08-10 liuli5079
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    2022-12-18 liye789132251
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北京时间11月14日,发表在《Nature》上的一项新研究中,来自美国加州大学圣地亚哥分校(UCSD)医学院的研究人员首次将噬菌体疗法应用于小鼠,成功治疗其酒精性肝病。噬菌体是一种专门破坏细菌的病毒。在20世纪初,研究人员曾尝试用噬菌体作为一种治疗细菌感染的潜在方法。但后来由于抗生素的出现,噬菌体不再受关注。如今,随着抗生素耐药性的不断增加,噬菌体疗法又重出江湖。研究通讯作者、医学和胃肠病学教授、

Nature:感染细菌的病毒,也有了超大的size

2月13日,发表在《Nature》上的一项研究中,美国加州大学伯克利分校领导的研究团队发现了数百种异常大的噬菌体。它们具有某些通常与活体生物相关的能力,该发现进一步模糊了其生命与非生命之间的界线。

GUT:肠噬菌体与溃疡性结肠炎

研究证实,粘膜病毒菌群的功能改变是溃疡性结肠炎的重要特征,表现为短尾状病毒噬菌体的富集、噬菌体功能增强以及病毒-细菌稳态的破坏

以“毒”攻毒攻克“超级细菌”,噬菌体鸡尾酒对抗超级细菌

前不久,家住广州的蔡阿姨得了一种“怪病”:泌尿系统反复感染,任何常规抗生素治疗均无作用;究其“病根”,去年10月,她曾突发高烧并出现感染性休克症状,经高级别抗生素联合治疗两个月后出院。但出院后依然反复发烧、反复尿路感染,于是,不得不反复入院治疗,但无论医生尝试何种抗生素组合,依然无法断其“病根”,危在旦夕。但经复旦大学附属上海市公共卫生临床中心两个月创新性精心治疗, 25日康复出院。  经检测,原

Nat Biotechnol:噬菌体:根际菌群的 “作战方案”

当地时间 12 月 2 日,英国《自然—生物技术》发表了南京农业大学资源与环境科学学院的最新研究成果。该成果揭示,噬菌体不仅可以 “专性猎杀” 和“精准靶向”土传青枯病的病原菌,降低其生存竞争能力,还能重新调整根际土壤菌群结构,恢复群落多样性,增加群落中拮抗有益菌的丰度。

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