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脂肽:增强抗念珠菌治疗谱的探索。

Lipopeptide: Exploration for enhanced anticandidal therapeutic spectrum.

作者信息

Singh Vivek Kumar, Kumar Awanish

机构信息

Department of Biotechnology, National Institute of Technology, Raipur, CG, India.

Department of Biotechnology, National Institute of Technology, Raipur, CG, India.

出版信息

Microb Pathog. 2025 Oct;207:107888. doi: 10.1016/j.micpath.2025.107888. Epub 2025 Jul 9.

Abstract

Growing numbers of human fungal contagions pose a significant threat to the health of society, which is largely brought on by an increase in the number of immunocompromised patients. Pathogenic fungi are usually ignored in discussions of human disease, though they create a big problem after infection. Immunocompromised patients have a high fatality rate due to severe invasive infections from a common polymorphic pathogenic fungus, Candida albicans. Treatment becomes more challenging when C. albicans builds biofilms in the body and on medical implants because they protect themselves from the human defense system and resist traditional antifungal medications. Quorum sensing in biofilm helps to develop drug resistance because it regulates gene expression and other biofilm-related activities. Available antifungal drugs now are not very effective against biofilm and are becoming more resistant. New antifungal choices are desperately needed, and they should contain unique biocompatible modes of action. Lipopeptides, a naturally occurring peptide group, have been shown as a promising antifungal substitute. They could be an effective, futuristic antifungal agent that stops the growth of pathogenic fungi in humans. Lipopeptides produced by bacteria, especially from Bacillus and Pseudomonas, are very powerful against pathogenic fungi. Cyclic lipopeptides such as surfactin, fengycin, iturins, and daptomycin damage Candida species' cell membranes because they are hydrophobic, prevent biofilm development, and could be efficacious antifungal agents. This review explores structural diversity, biosynthesis, and interactions of lipopeptides against C. albicans virulence factors. New treatment regimens for human fungal infections can be developed by recognizing and researching lipopeptides in-depth, urgently needed to develop potent, safe, and enhanced spectral antifungal arsenals in the future because there is now an insufficiency of effective antifungal medicine.

摘要

越来越多的人类真菌传染病对社会健康构成重大威胁,这在很大程度上是由免疫功能低下患者数量的增加所导致的。在关于人类疾病的讨论中,致病真菌通常被忽视,尽管它们在感染后会引发大问题。由于常见的多态性致病真菌白色念珠菌的严重侵袭性感染,免疫功能低下患者的死亡率很高。当白色念珠菌在体内和医疗植入物上形成生物膜时,治疗变得更具挑战性,因为它们能保护自己免受人体防御系统的攻击,并抵抗传统抗真菌药物。生物膜中的群体感应有助于产生耐药性,因为它调节基因表达和其他与生物膜相关的活动。现有的抗真菌药物对生物膜的效果不佳,且耐药性越来越强。迫切需要新的抗真菌选择,并且它们应具有独特的生物相容性作用方式。脂肽是一类天然存在的肽,已被证明是一种有前景的抗真菌替代品。它们可能是一种有效的、未来型的抗真菌剂,可阻止人类致病真菌的生长。细菌产生的脂肽,尤其是来自芽孢杆菌和假单胞菌的脂肽,对致病真菌非常有效。环脂肽如表面活性素、丰原素、伊枯草菌素和达托霉素会破坏念珠菌属的细胞膜,因为它们具有疏水性,可防止生物膜形成,并且可能是有效的抗真菌剂。本综述探讨了脂肽的结构多样性、生物合成以及它们与白色念珠菌毒力因子的相互作用。通过深入认识和研究脂肽,可以开发出针对人类真菌感染的新治疗方案,鉴于目前有效抗真菌药物不足,这对于未来开发强效、安全且广谱增强的抗真菌药物库来说是迫切需要的。

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