A new Clonostachys Sp. ZBS49 filamentous fungus with high production of betulinic acid and its inhibitory effect on liver cancer cells

Abstract Background Triterpenoid compounds such as betulinic acid (BA) and oleanolic acid (OA) exhibit considerable pharmacological activities. However, their current production primarily relies on plant extraction and chemical synthesis, methods that are often plagued by low efficiency, complex ext...

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Main Authors: Luran Geng, Jiale Cui, Changyixin Xiao, Linlin Xu, Fengjiao Yue, Ting Zhang, Mengran Zhan, Zichang Lu, Yuzhe Ren, Chunsheng Wang, Jing Yin
Format: Article
Language:English
Published: BMC 2025-06-01
Series:Microbial Cell Factories
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Online Access:https://doi.org/10.1186/s12934-025-02733-w
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author Luran Geng
Jiale Cui
Changyixin Xiao
Linlin Xu
Fengjiao Yue
Ting Zhang
Mengran Zhan
Zichang Lu
Yuzhe Ren
Chunsheng Wang
Jing Yin
author_facet Luran Geng
Jiale Cui
Changyixin Xiao
Linlin Xu
Fengjiao Yue
Ting Zhang
Mengran Zhan
Zichang Lu
Yuzhe Ren
Chunsheng Wang
Jing Yin
author_sort Luran Geng
collection DOAJ
description Abstract Background Triterpenoid compounds such as betulinic acid (BA) and oleanolic acid (OA) exhibit considerable pharmacological activities. However, their current production primarily relies on plant extraction and chemical synthesis, methods that are often plagued by low efficiency, complex extraction processes, and environmental concerns. Microbial-based synthesis has emerged as one of the most effective approaches for producing BA and OA. Results This study presented the first identification of filamentous fungal strains efficiently synthesizing both BA and OA. The strain ZBS49 is a newly identified species of Clonostachys isolated from Gleditsia japonica Miq. (showing 99.82% sequence identity), produced 47.7 mg/L of BA. The strain XJ1-1, characterized as Colletotrichum gloeosporioides and isolated from Cannabis sativa L., yielded 65.76 mg/L of OA. After optimizing the culture medium and cultivation conditions, the yields of ZBS49 and XJ1-1 increased to 288.97 and 86.14 mg/L, representing improvements of 506% and 31%, respectively. Furthermore, we discovered that the BA extract of the ZBS49 strain significantly inhibited hepatocellular cancer cells (SMMC-7721 and HepG2) in a dose-dependent manner, with a minimum inhibitory concentration of 70 µM. Genomic analysis of Clonostachys sp. ZBS49 elucidated that the presence of 16 putative genes was related to triterpenoid biosynthesis and 6 distinct terpene biosynthetic gene clusters. Among the 145 CYP450, 5 genes involved in C-28 oxidation were predicted. Conclusions This research underscores the effectiveness of filamentous fungi as a biotechnological platform for the efficient production of BA and its derivatives, highlighting their potential applications in cancer therapy. Furthermore, these findings provide valuable genetic resources and establish a robust technical and theoretical framework for utilizing ZBS49 as a microbial platform for the biosynthesis of triterpenoids. Graphical abstract
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spelling doaj-art-9685baa48b8541ae99c796b85e4fc4602025-08-20T02:05:42ZengBMCMicrobial Cell Factories1475-28592025-06-0124111710.1186/s12934-025-02733-wA new Clonostachys Sp. ZBS49 filamentous fungus with high production of betulinic acid and its inhibitory effect on liver cancer cellsLuran Geng0Jiale Cui1Changyixin Xiao2Linlin Xu3Fengjiao Yue4Ting Zhang5Mengran Zhan6Zichang Lu7Yuzhe Ren8Chunsheng Wang9Jing Yin10College of Life Science, Northeast Forestry UniversityCollege of Life Science, Northeast Forestry UniversityCollege of Life Science, Northeast Forestry UniversityCollege of Life Science, Northeast Forestry UniversityCollege of Life Science, Northeast Forestry UniversityCollege of Life Science, Northeast Forestry UniversityCollege of Life Science, Northeast Forestry UniversityCollege of Aulin, Northeast Forestry UniversityCollege of Life Science, Northeast Forestry UniversityCollege of Life Science, Northeast Forestry UniversityKey Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education (Northeast Forestry University)Abstract Background Triterpenoid compounds such as betulinic acid (BA) and oleanolic acid (OA) exhibit considerable pharmacological activities. However, their current production primarily relies on plant extraction and chemical synthesis, methods that are often plagued by low efficiency, complex extraction processes, and environmental concerns. Microbial-based synthesis has emerged as one of the most effective approaches for producing BA and OA. Results This study presented the first identification of filamentous fungal strains efficiently synthesizing both BA and OA. The strain ZBS49 is a newly identified species of Clonostachys isolated from Gleditsia japonica Miq. (showing 99.82% sequence identity), produced 47.7 mg/L of BA. The strain XJ1-1, characterized as Colletotrichum gloeosporioides and isolated from Cannabis sativa L., yielded 65.76 mg/L of OA. After optimizing the culture medium and cultivation conditions, the yields of ZBS49 and XJ1-1 increased to 288.97 and 86.14 mg/L, representing improvements of 506% and 31%, respectively. Furthermore, we discovered that the BA extract of the ZBS49 strain significantly inhibited hepatocellular cancer cells (SMMC-7721 and HepG2) in a dose-dependent manner, with a minimum inhibitory concentration of 70 µM. Genomic analysis of Clonostachys sp. ZBS49 elucidated that the presence of 16 putative genes was related to triterpenoid biosynthesis and 6 distinct terpene biosynthetic gene clusters. Among the 145 CYP450, 5 genes involved in C-28 oxidation were predicted. Conclusions This research underscores the effectiveness of filamentous fungi as a biotechnological platform for the efficient production of BA and its derivatives, highlighting their potential applications in cancer therapy. Furthermore, these findings provide valuable genetic resources and establish a robust technical and theoretical framework for utilizing ZBS49 as a microbial platform for the biosynthesis of triterpenoids. Graphical abstracthttps://doi.org/10.1186/s12934-025-02733-wFilamentous fungiBetulinic acidFermentation systemClonostachys Sp.GenomeTumor suppression
spellingShingle Luran Geng
Jiale Cui
Changyixin Xiao
Linlin Xu
Fengjiao Yue
Ting Zhang
Mengran Zhan
Zichang Lu
Yuzhe Ren
Chunsheng Wang
Jing Yin
A new Clonostachys Sp. ZBS49 filamentous fungus with high production of betulinic acid and its inhibitory effect on liver cancer cells
Microbial Cell Factories
Filamentous fungi
Betulinic acid
Fermentation system
Clonostachys Sp.
Genome
Tumor suppression
title A new Clonostachys Sp. ZBS49 filamentous fungus with high production of betulinic acid and its inhibitory effect on liver cancer cells
title_full A new Clonostachys Sp. ZBS49 filamentous fungus with high production of betulinic acid and its inhibitory effect on liver cancer cells
title_fullStr A new Clonostachys Sp. ZBS49 filamentous fungus with high production of betulinic acid and its inhibitory effect on liver cancer cells
title_full_unstemmed A new Clonostachys Sp. ZBS49 filamentous fungus with high production of betulinic acid and its inhibitory effect on liver cancer cells
title_short A new Clonostachys Sp. ZBS49 filamentous fungus with high production of betulinic acid and its inhibitory effect on liver cancer cells
title_sort new clonostachys sp zbs49 filamentous fungus with high production of betulinic acid and its inhibitory effect on liver cancer cells
topic Filamentous fungi
Betulinic acid
Fermentation system
Clonostachys Sp.
Genome
Tumor suppression
url https://doi.org/10.1186/s12934-025-02733-w
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