转录因子mce3R调节抗生素和在Mycobacteriumtuberculosis中的疾病持久性
Manitosh Pandey1, Sakshi Talwar2, Rahul Pal2
1Mycobacterial Pathogenesis Laboratory, Translational Health Science and Technology Institute, Faridabad, Haryana, India; Department of Life Science, ITM University, Gwalior, Madhya Pradesh, India.
Research in microbiology
|May 27, 2023
概括
结核菌转录抑制剂mce3R影响抗生素的持续形成. 向mce3R regulon可能通过消除持久细胞来增强结核病治疗.
科学领域:
- 微生物学 微生物学
- 分子生物学分子生物学
- 结核病研究 结核病研究
背景情况:
- 结核病 (TB) 是由结核菌菌 (Mtb) 引起的.
- Mtb生存依赖于调节宿主-病原体相互作用的转录因子.
- 了解Mtb转录因子对于开发新的抗结核战略至关重要.
研究的目的:
- 在Mtb.中对TetR家族转录抑制剂基因mce3R进行了表征.
- 研究mce3R在Mtb生理学和宿主-病原体动态中的作用.
- 探索针对结核病治疗的mce3R regulon的潜力.
主要方法:
- 基因删除突变体 (Δmce3R) 的结构和特征.
- 使用定量PCR进行基因表达分析.
- 氧化应激敏感性测试.
- 总脂质分析.
- 抗生素持续性频率的确定.
- 在生物体内对几内亚猪进行生长研究.
主要成果:
- 在胆固醇上,mce3R基因对于Mtb的生长是不可或缺的.
- mce3R regulon基因表达是独立于碳源的.
- Δmce3R菌株表现出细胞内ROS增加和氧化应激敏感性降低.
- Mce3R regulon 蛋白调节 Mtb 细胞壁脂质生物合成.
- 缺少Mce3R增加了抗生素的持续形成,并赋予了体内生长的优势.
结论:
- 该mce3R regulon调节了mtb持续生成的频率.
- 向mce3R regulon蛋白质可以通过消除持久性来加强当前的结核病疗法.
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