非白虫中SAP1-3基因的表达牛乳和人类样本中的Candida分离物

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¹Department of Microbiology, School of Biological Sciences, Islamic Azad University, North Tehran Branch, Tehran, Iran. zahranamvar@gmail.com.

Folia microbiologica

|July 7, 2025

概括

非白虫Candida (NAC) 种类是重要的机会性病原体. 这项研究比较了从原牛奶和人体样本中获得的NAC中分泌的酸蛋白酶 (SAP) 基因表达,在Candida parapsilosis中发现了SAP2和SAP3基因表达的变异.

科学领域:

微生物学微生物学
分子生物学分子生物学
医学真菌学医学真菌学

背景情况:

越来越多的非白虫Candida (NAC) 种被认为是重要的机会性病原体,导致各种感染,如白病和胃肠道感染.
分泌的酸蛋白酶 (SAPs) 是真菌产生的关键毒性因子,通过降解粘膜和免疫蛋白来侵入宿主组织.

研究的目的:

为了比较从牛奶和人类样本中分离的不同NAC物种中SAP1,SAP2和SAP3基因的表达水平.
根据NAC分离物的源环境,调查病毒性基因表达的潜在差异.

主要方法:

从牛奶和人类样本中分离了包括Candida parapsilosis,Candida tropicalis,Pichia kudriavzevii和Nakaseomyces glabrata在内的NAC物种.
使用定量逆转录酶-聚合酶连锁反应 (qRT-PCR) 来分析SAP1,SAP2和SAP3基因的表达.

主要成果:

在生牛奶和人类分离物之间,在Candida parapsilosis中观察到SAP2和SAP3基因表达的显著差异.
在人类衍生的C. parapsilosis中,SAP2的表达显著较低,而SAP3的表达显著更高 (*p <0.05).
对SAP2和SAP3的基因表达模式在其他一些NAC物种 (N. glabrata,P. kudriavzevii,C. tropicalis) 和来源中是相似的,但在来自不同来源的同一NAC物种内有所不同.

结论:

在NAC物种中,SAP2和SAP3基因的表达可能因分离源而异 (例如,生牛奶与人类).
这些发现突显了环境对真菌毒性基因表达的影响,并对理解NAC病变产生有影响.
需要进一步的研究来阐明驱动这些差异性基因表达模式的机制及其临床意义.

关键词:

基因表达基因表达基因表达牛奶牛奶牛奶牛奶其他非白虫Candida.在这里,我们将学习SAP SAP SAP.

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