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在感染期间,在Mycobacterium abscessus中抑制基本基因表达

Yves-Marie Boudehen¹, Yara Tasrini¹, John Jairo Aguilera-Correa¹

¹Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier , Montpellier, France.

Microbiology spectrum

|October 13, 2023

概括

我们开发了一种新方法,以使难以治疗的病原体Mycobacterium abscessus中必不可少的基因沉默. 这种工具有助于研究基因功能,并识别囊性纤维化等感染的新药点.

科学领域:

微生物学微生物学
传染性疾病传染性疾病
药物发现药物发现药物发现

背景情况:

* * Mycobacterium abscessus * 是难以治疗的感染的主要原因,特别是在囊性纤维化患者中.
*M.的基本基因对其生存和潜在的药物标至关重要,但研究它们是具有挑战性的.
*目前对M.的遗传工具有限,阻碍了对基本基因和新治疗策略的研究.

研究的目的:

* 开发一种强大可靠的基因沉默方法,用于M..
* 调查编码菌根酸载体的mmpL3*基因的基本性.
* 在各种条件下验证开发系统的实用性,包括感染模型.

主要方法:

*生成一个可以诱导Tet-OFF的系统,用于在M. abscessus*中进行条件基因敲除.
* 有针对性的 *mmpL3* 表达式的淘汰.
*评估浮游生物培养,生物膜和斑马鱼感染模型中的*mmpL3*实质性.

主要成果:

* Tet-OFF 系统成功启用了 *mmpL3* 表达式的条件倒置.
* *mmpL3*被证实对浮游生物培养和生物膜中的*M. abscessus*生存至关重要.
在斑马鱼胚胎模型中,在感染期间进一步验证了mmpL3的重要性.

结论:

* 一个基于Tet-OFF的新型系统提供了一种可靠的方法,用于在M. abscessus*中沉默基因.
*这个系统有助于研究重要的基因,如mmpL3*,以及它们在病变发生过程中的作用.
*开发的工具对于进一步了解M.的生物学和确定新的治疗点至关重要.

关键词:

MmpL3MmpL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3MMPL3 这种细菌是Mycobacterium abscessus.这是一个Tet-OFF系统.无水四环素无水四环素是什么基因抑制基因抑制感染的感染感染.斑马鱼是一种斑马鱼.

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