Production and bioprocessing of epothilone B from Aspergillus niger, an endophyte of Latania loddegesii, with a conceivable biosynthetic stability: anticancer, anti-wound healing activities and cell cycle analysis.
Aspergillus niger
Latania loddegesii
Anticancer
Apoptosis
Epothilone
Wound healing
Journal
Microbial cell factories
ISSN: 1475-2859
Titre abrégé: Microb Cell Fact
Pays: England
ID NLM: 101139812
Informations de publication
Date de publication:
16 Aug 2024
16 Aug 2024
Historique:
received:
11
06
2024
accepted:
29
07
2024
medline:
17
8
2024
pubmed:
17
8
2024
entrez:
16
8
2024
Statut:
epublish
Résumé
Epothilones are one of the common prescribed anticancer drugs for solid tumors, for their exceptional binding affinity with β-tubulin microtubule, stabilizing their disassembly, causing an ultimate arrest to the cellular growth. Epothilones were initially isolated from Sornagium cellulosum, however, their extremely slow growth rate and low yield of epothilone is the challenge. So, screening for a novel fungal endophyte dwelling medicinal plants, with higher epothilone productivity and feasibility of growth manipulation was the objective. Aspergillus niger EFBL-SR OR342867, an endophyte of Latania loddegesii, has been recognized as the heady epothilone producer (140.2 μg/L). The chemical structural identity of the TLC-purified putative sample of A. niger was resolved from the HPLC, FTIR and LC-ESI-MS/MS analyses, with an identical molecular structure of the authentic epothilone B. The purified A. niger epothilone B showed a resilient activity against MCF-7 (0.022 μM), HepG-2 (0.037 μM), and HCT-116 (0.12 μM), with selectivity indices 21.8, 12.9 and 4, respectively. The purified epothilone B exhibited a potential anti-wound healing activity to HepG-2 and MCF-7 cells by ~ 54.07 and 60.0%, respectively, after 24 h, compared to the untreated cells. The purified epothilone has a significant antiproliferative effect by arresting the cellular growth of MCF-7 at G2/M phase by ~ 2.1 folds, inducing the total apoptosis by ~ 12.2 folds, normalized to the control cells. The epothilone B productivity by A. niger was optimized by the response surface methodology, with ~ 1.4 fold increments (266.9 μg/L), over the control. The epothilone productivity by A. niger was reduced by ~ 2.4 folds by 6 months storage as a slope culture at 4 °C, however, the epothilone productivity was slightly restored with ethylacetate extracts of L. loddegesii, confirming the plant-derived chemical signals that partially triggers the biosynthetic genes of A. niger epothilones. So, this is the first report emphasizing the metabolic potency of A. niger, an endophyte of L. loddegesii, to produce epothilone B, that could be a new platform for industrial production of this drug.
Identifiants
pubmed: 39152399
doi: 10.1186/s12934-024-02495-x
pii: 10.1186/s12934-024-02495-x
doi:
Substances chimiques
Epothilones
0
Antineoplastic Agents
0
epothilone B
UEC0H0URSE
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
229Informations de copyright
© 2024. The Author(s).
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