Insight into advances for the biosynthetic progress of fermented echinocandins of antifungals

白霉素类 茴香菌素 卡斯波芬金 棘白菌素 米卡芬金 生物 抗真菌 计算生物学 微生物学 生物技术 两性霉素B 氟康唑
作者
Kaili Jiang,Pan Luo,Wei Wang,Ling Lü
出处
期刊:Microbial biotechnology [Wiley]
卷期号:17 (1) 被引量:1
标识
DOI:10.1111/1751-7915.14359
摘要

Abstract Invasive fungal infections have increased remarkably, which have become unprecedented concern to human health. However, the effectiveness of current antifungal drugs is limited due to drug resistance and toxic side‐effects. It is urgently required to establish the effective biosynthetic strategy for developing novel and safe antifungal molecules economically. Echinocandins become a promising option as a mainstay family of antifungals, due to specifically targeting the fungal specific cell wall. To date, three kinds of echinocandins for caspofungin, anidulafungin, and micafungin, which derived from pneumocandin B 0 , echinocandin B, and FR901379, are commercially available in clinic and have shown potential in managing invasive fungal infections in a cost‐effective manner. However, current echinocandins‐derived precursors all are produced by environmental fungal isolates with long fermentation cycle and low yields, which challenge the production efficacy of these precursors in industry. Therefore, understanding their biosynthetic machinery is of great importance for improving antifungal titres and creating new echinocandins‐derived products. With the development of genome‐wide sequencing and establishment of gene‐editing technology, there are a growing number of reports on echinocandins‐derived products and their biosynthetic gene clusters. This review briefly summarizes the discovery and development history of echinocandins, compares their structural characteristics and biosynthetic processes, and sums up existed strategies for improving their production. Moreover, the genomic analysis of related biosynthetic gene clusters of echinocandins is discussed, highlighting the similarities and differences among the clusters. Last, the biosynthetic processes of echinocandins are compared, focusing on the activation and attachment of side‐chains and the formation of the hexapeptide core. This review aims to provide insights into the development and production of new echinocandin drugs by modifying the structure of echinocandin‐derived precursors and/or optimizing the fermentation processes; and achieve a new microbial chassis for efficient production of echinocandins in heterologous hosts.
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