在Candida auris中,阿佐尔抗性的Upc2介导机制
Jizhou Li1,2, Lola Aubry1, Danielle Brandalise1
1Department of Laboratory Medicine and Pathology, Institute of Microbiology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland.
Microbiology spectrum
|January 11, 2024
概括
转录因子Upc2对于Candida auris中醇耐药性至关重要,它调节了厄戈斯特的生物合成,并激活了Mrr1/Mdr1通路. 了解UPC2 的理解
科学领域:
- 菌类学 菌类学是指菌类学.
- 分子生物学分子生物学
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 黄是一种新兴的酵母病原体,导致医院疫情爆发.
- C. auris对抗真菌药物表现出耐药性,特别是像可纳这样的醇.
- 醇耐药机制涉及ERG11突变和转录因子Tac1b/Mrr1控制药物载体.
研究的目的:
- 研究转录因子Upc2在Candida auris醇耐药性中的作用.
- 确定Upc2如何影响厄戈斯特醇生物合成和药物输送通路.
- 阐明Upc2对C. auris.中醇耐药机制的贡献.
主要方法:
- 在C. auris. 中,UPC2基因的遗传删除和过度激活.
- 对Upc2过度激活的表皮层标记.
- 逆转录PCR用于分析基因表达 (ERG11,MDR1,TAC1b,CDR1) 的结果.
- 对醇药物的敏感性测试.
主要成果:
- 对Upc2的基因操纵大大改变了C. auris.中的醇敏感性.
- Upc2调节ERG11的表达,并激活Mrr1/Mdr1通路.
- 通过Upc2对MDR1的调节可以独立于Mrr1.
- Upc2过度激活增加了TAC1b的表达,但没有增加CDR1的表达.
结论:
- 在C. auris.中,Upc2对于醇耐药性至关重要.
- 通过调节厄戈斯特生物合成和激活Mrr1/Mdr1通路,Upc2调节了耐药性.
- Upc2作为Mdr1药物载体的强大和直接激活剂.
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