Salam Dakalbab , Rania Hamdy , Patrícia Holigová , Eman J. Abuzaid , Ameera Abu-Qiyas , Yasmina Lashine , Mohammad.G. Mohammad , Sameh S.M. Soliman
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引用次数: 0
摘要
由于白色念珠菌令人担忧的多重耐药性和泛耐药菌株的出现,白色念珠菌已引起全球关注。白色念珠菌是引起院内念珠菌血症的重要危险因素,尤其是在免疫力低下的患者中。念珠菌表现出与细胞壁相关的独特毒力特征,包括细胞多态性、适应性、在无生命表面的耐力、对外界条件的耐受性和免疫逃避。值得注意的是,它具有独特的细胞壁成分,外层的甘露聚糖层保护了内层的 1,3-β 葡聚糖不被免疫识别,从而实现了免疫逃避和耐药性。这篇综述旨在了解栗色真菌细胞壁的独特特征与毒力、抗药性机制和免疫逃避之间的联系。这一点尤为重要,因为真菌细胞壁与人类没有同源性,这提供了一个潜在的治疗目标。了解细胞壁与宿主免疫系统之间复杂的相互作用,对于制定有效的治疗策略至关重要,例如使用改变用途的药物、新型治疗剂和单克隆抗体等免疫疗法。这种针对 C. auris 的治疗策略有望有效根除这种生命力顽强的病原体。
Uniqueness of Candida auris cell wall in morphogenesis, virulence, resistance, and immune evasion
Candida auris has drawn global attention due to its alarming multidrug resistance and the emergence of pan resistant strains. C. auris poses a significant risk in nosocomial candidemia especially among immunocompromised patients. C. auris showed unique virulence characteristics associated with cell wall including cell polymorphism, adaptation, endurance on inanimate surfaces, tolerance to external conditions, and immune evasion. Notably, it possesses a distinctive cell wall composition, with an outer mannan layer shielding the inner 1,3-β glucan from immune recognition, thereby enabling immune evasion and drug resistance. This review aimed to comprehend the association between unique characteristics of C. auris’s cell wall and virulence, resistance mechanisms, and immune evasion. This is particularly relevant since the fungal cell wall has no human homology, providing a potential therapeutic target. Understanding the complex interactions between the cell wall and the host immune system is essential for devising effective treatment strategies, such as the use of repurposed medications, novel therapeutic agents, and immunotherapy like monoclonal antibodies. This therapeutic targeting strategy of C. auris holds promise for effective eradication of this resilient pathogen.
期刊介绍:
Microbiological Research is devoted to publishing reports on prokaryotic and eukaryotic microorganisms such as yeasts, fungi, bacteria, archaea, and protozoa. Research on interactions between pathogenic microorganisms and their environment or hosts are also covered.