在密切相关的皮肤植物中对基因表达的比较分析揭示了二次新陈代谢作为毒性候选驱动因素
Lenka Machová1,2, Martin Kostovčík1, Karel Švec1
1Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic.
Microbiology spectrum
|October 9, 2025
概括
新兴的真菌病原体Trichophyton benhamiae var. 这种真菌病原体. 黄素在毒性相关基因,特别是二次新陈代谢中的活性增加,这解释了与亲属相比其增强的传染性. 这有助于理解皮肤细胞病原体的产生.
科学领域:
- 菌类学 菌类学是指菌类学.
- 传染性疾病 传染性疾病
- 遗传学 是一个遗传学.
背景情况:
- 皮质植物是人类和动物皮肤的重要全球性真菌病原体.
- 病毒性因子已知,但它们在病变发生中的作用需要进一步阐明.
- 特里科菲顿贝纳米亚复合体呈现出感染性的变化,提供了一个研究毒性的模型.
研究的目的:
- 为了研究高传染性和低传染性Trichophyton benhamiae种群之间的基因表达差异.
- 确定导致T. benhamiae var.增强动物感染潜力的分子机制. . . . . . . . . . . . . . . . . . .
- 探索二次代谢产物在皮肤菌毒性中的作用.
主要方法:
- 在12个T. benhamiae菌株中使用RT-qPCR对16个候选基因进行比较分析.
- 使用了体外 (Sabouraud乳糖) 和体外 (小鼠皮肤) 培养条件.
- 转录组查告知了候选基因的选择.
主要成果:
- 参与二次代谢的基因被显著上调ex vivo,特别是在T. benhamiae var.中. . . . . . . . . . . . . . . . . . .
- 两个检查的生物合成基因集群与已知的代谢物有关; 其他仍未表征.
- 在具有不同感染力的菌株之间观察到不同的基因表达模式.
结论:
- 在T. benhamiae var.中对二次代谢基因的升级调节. 黄可能有助于其增强的毒性和流行病潜力.
- 二次代谢产物可能是皮肤细胞病原发生的关键因素.
- 对T. benhamiae进行进一步的基因组注释是必要的,以充分理解其致病机制.
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