A target and efficient synthetic strategy for structural and bioactivity optimization of a fungal natural product.
Eur J Med Chem
; 229: 114067, 2022 Feb 05.
Article
em En
| MEDLINE
| ID: mdl-34973507
ABSTRACT
Drugs have been largely inspired from natural products, while enzymes underlying their biosynthesis have enabled complex structures and diverse bioactivities. Nevertheless, the high enzyme specificity and limited in vivo precursor types have restricted the natural product reservoir, but Nature has imprinted natural products with active sites, which can be readily modified by chemosynthesis with various functional groups for more favorable druggability. Here in the less exploited fungal natural products, we introduced CtvA, a polyketide synthase for a mycotoxin citreoviridin biosynthesis in Aspergillus, into an endophytic fungus Calcarisporium arbuscula to expand tetrahydrofuran (THF) into a dioxabicyclo-octane (DBO) ring moiety based on versatility and promiscuity of the aurovertin biosynthetic enzyme. Alternative acylations on the hydroxyl groups essential for cell toxicity by chemosynthesis produced compounds with improved anti-tumor activities and pharmacokinetics. Thus, we showed an effective strategic way to optimize the fungal natural product efficiently for more promising drug development.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Aurovertinas
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Produtos Biológicos
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Compostos Bicíclicos Heterocíclicos com Pontes
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Policetídeo Sintases
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Antineoplásicos
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Octanos
Limite:
Humans
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article