充分利用Burkholderia spp. 的多样性 治疗潜力的原体
Hayley R Nordstrom1, Marissa P Griffith1, Vatsala Rangachar Srinivasa1
1Division of Infectious Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.
在Burkholderia细菌中的食原体可以被诱导杀死其他Burkholderia菌株. 这项研究确定了从prophages的新型细菌作为难以治疗的Burkholderia感染的潜在治疗方法.
科学领域:
- 微生物学 微生物学
- 细菌治疗疗法是一种细菌治疗.
- 基因组学就是基因组学.
背景情况:
- 伯克霍尔迪亚物种是抗生素耐药的病原体,导致难以治疗的感染.
- 菌体治疗提供了潜在的替代治疗方法,但合适的菌体很少.
- 在细菌基因组中集成的原菌是治疗性菌体的潜在来源.
研究的目的:
- 调查Burkholderia临床分离物的prophages作为治疗性细菌菌体的来源的潜力.
- 为了确定诱导的prophages是否表现出对同种和异种的Burkholderia分离物的性活性.
- 分析Burkholderia基因组内的菌体的分布,并评估物种之间的菌体敏感性差异.
主要方法:
- 从32个Burkholderia临床分离物中诱导导体释放.
- 对32个分离物测试收获的菌体,以检测它们对32个分离物的性活性.
- 在35个Burkholderia临床分离基因组中测序和分析prophage含量.
- 确定孤立温带菌体的宿主范围.
主要成果:
- 从prophages中分离出了四种独特的温带菌体,具有明显的溶性活动.
- 在同一种Burkholderia的多个分离物种中确定了几个prophages.
- Burkholderia cenocepacia分离物表现出比Burkholderia multivorans分离物对菌体的敏感性更高.
结论:
- 在Burkholderia基因组中的原体代表了隔离新型细菌菌的有希望的资源.
- 这些发现支持用于治疗Burkholderia感染的治疗应用的prophage衍生菌的发展.
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