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Li HT, Guo XY, Shao YT, Huang WY, Miao CP, Li W. Triterpenoid and trichothecenes from a rhizospheric soil-derived Paramyrothecium sp. KMU22107. Nat Prod Res 2024:1-10. [PMID: 39056194 DOI: 10.1080/14786419.2024.2383994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 07/04/2024] [Accepted: 07/15/2024] [Indexed: 07/28/2024]
Abstract
A new phthalide derivative named paramlyktone (1) and a new arborinane-type triterpenoid named paramyrpenoid (2), together with ten previously described trichothecenes derivatives (3-12) were isolated and identified from a rhizospheric soil-derived Paramyrothecium sp. KMU22107 associated with Delphinium yunnanense. Their structural elucidation was achieved by the comprehensive analysis of spectroscopic data and comparison with literature values. Notably, paramyrpenoid (2) was the first example of an arborinane-type triterpenoid with a double bond at Δ12(13) and an additional methyl motif at C-8. This was the first report of arborinane-type triterpenoids from a fungus belonging to Paramyrothecium genus. In pharmacological studies, paramyrpenoid (2) demonstrated significant cytotoxic activity against the HL-60, SW480, A-549, MDA-MB-231 and SMMC-7721 cell lines, with IC50 values from 2.0 to 16.1 μM. Compounds 1 and 2 were also evaluated for anti-inflammatory, anti-acetylcholinesterase (AChE), and protein tyrosine phosphatase 1B (PTP1B) inhibitory activities in vitro.
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Affiliation(s)
- Hong-Tao Li
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Xing-Yi Guo
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Ya-Ting Shao
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Wen-Yu Huang
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Cui-Ping Miao
- Yunnan Institute of Microbiology, Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, School of Life Sciences, Yunnan University, Kunming, China
| | - Wei Li
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
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2
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Saidu MB, Krstić G, Bombicz P, De S, Barta A, Ali H, Zupkó I, Berkecz R, Gallah US, Rédei D, Hohmann J. New Members of the Centrapalus Coumarin and Pauciflorin Series from Centrapalus pauciflorus. Pharmaceutics 2024; 16:907. [PMID: 39065605 PMCID: PMC11279841 DOI: 10.3390/pharmaceutics16070907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/21/2024] [Accepted: 07/03/2024] [Indexed: 07/28/2024] Open
Abstract
Monoterpene and 5-methylcoumarin- or 5-methylchromone-coupled meroterpenoids occurring mainly in the Asteraceae species proved to have high potency against protozoans, worms, and various tumor cells, which make them interesting targets for searching for new bioactive compounds. The African plant Centrapalus pauciflorus was applied in traditional medicine for healing chest pain and stomach aches. Three new meroterpenoids named centrapalus coumarin N (2), pauciflorins P (3), and Q (4), and the already known cyclohoehnelia coumarin (1), were isolated from the chloroform extract of C. pauciflorus, together with centrapalus coumarin O (5), which was obtained for the first time from a natural source. The structures were established from HRESIMS, 1D (1H NMR, 13C NMR JMOD) and 2D NMR (HSQC, HMBC, 1H-1H COSY, NOESY) spectroscopies, and the absolute stereochemistry of 5 was determined by single-crystal X-ray diffraction. Compounds 1, 2, and 5 are hybrid molecules of 5-methylcoumarin-monoterpene origin. Centrapalus coumarin N is the first example of meroterpenoids, where a monoterpene is fused with a coumarin and an acetophenone unit. Pauciflorins P and Q are dimeric meroterpenoid isomers. Centrapalus coumarins N and O were tested for antiproliferative activity against human adherent breast (MCF-7, MDA-MB-231), cervical (HeLa, SiHa), and ovarian (A2780) cancer cell lines, and were additionally included to obtain data concerning cancer selectivity. Both compounds exhibited moderate (IC50 > 10 µM) but selective activity against A2780 cells.
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Affiliation(s)
- Muhammad Bello Saidu
- Department of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary; (M.B.S.); (A.B.); (D.R.)
| | - Gordana Krstić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, Serbia;
| | - Petra Bombicz
- Centre for Structural Science, HUN-REN Research Centre for Natural Sciences, Magyar Tudósok körútja 2, 1117 Budapest, Hungary; (P.B.); (S.D.)
| | - Sourav De
- Centre for Structural Science, HUN-REN Research Centre for Natural Sciences, Magyar Tudósok körútja 2, 1117 Budapest, Hungary; (P.B.); (S.D.)
| | - Anita Barta
- Department of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary; (M.B.S.); (A.B.); (D.R.)
| | - Hazhmat Ali
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary; (H.A.); (I.Z.)
| | - István Zupkó
- Institute of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary; (H.A.); (I.Z.)
| | - Róbert Berkecz
- Institute of Pharmaceutical Analysis, University of Szeged, Somogyi u. 4, 6720 Szeged, Hungary;
| | - Umar Shehu Gallah
- Bioresource Department, National Research Institute for Chemical Technology (NARICT), Zaria PMB 1052, Nigeria;
| | - Dóra Rédei
- Department of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary; (M.B.S.); (A.B.); (D.R.)
| | - Judit Hohmann
- Department of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary; (M.B.S.); (A.B.); (D.R.)
- HUN-REN–USZ Biologically Active Natural Products Research Group, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
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3
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Zhang Y, Feng L, Hemu X, Tan NH, Wang Z. OSMAC Strategy: A promising way to explore microbial cyclic peptides. Eur J Med Chem 2024; 268:116175. [PMID: 38377824 DOI: 10.1016/j.ejmech.2024.116175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/12/2024] [Accepted: 01/22/2024] [Indexed: 02/22/2024]
Abstract
Microbial secondary metabolites are pivotal for the development of novel drugs. However, conventional culture techniques, have left a vast array of unexpressed biosynthetic gene clusters (BGCs) in microorganisms, hindering the discovery of metabolites with distinct structural features and diverse biological functions. To address this limitation, several innovative strategies have been emerged. The "One Strain Many Compounds" (OSMAC) strategy, which involves altering microbial culture conditions, has proven to be particularly effective in mining numerous novel secondary metabolites for the past few years. Among these, microbial cyclic peptides stand out. These peptides often comprise rare amino acids, unique chemical structures, and remarkable biological function. With the advancement of the OSMAC strategy, a plethora of new cyclic peptides have been identified from diverse microbial genera. This work reviews the progress in mining novel compounds using the OSMAC strategy and the applications of this strategy in discovering 284 microbial cyclic peptides from 63 endophytic strains, aiming to offer insights for the further explorations into novel active cyclic peptides.
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Affiliation(s)
- Yu Zhang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Li Feng
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Xinya Hemu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Ning-Hua Tan
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Zhe Wang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
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4
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Yang Y, Li GD, Shao YT, Sun ZW, Li LW, Li W, Li HT. Fungal polyketides produced by an endophytic fungus Phoma sp. associated with Gastrodia elata. Fitoterapia 2024; 173:105793. [PMID: 38158161 DOI: 10.1016/j.fitote.2023.105793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/25/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
Two novel fungal polyketides, phometides A (1) and B (2), together with four known compounds (3-6), were isolated from the endophytic fungus Phoma sp. YUD17001 obtained from Gastrodia elata Blume. The structures were elucidated based on spectroscopic analyses, X-ray crystal diffraction, and time-dependent density functional theory/electronic circular dichroism (TDDFT/ECD) calculations. Structurally, phometide A (1) represented the first example of C12 polyketide characterized by an unusual tetrahydrobenzofuran-3(2H)-one core with an α,β-unsaturated ketone functionality, while phometide B (2) was an unprecedented molecule containing a 2-pentylcycloheptan-1-one scaffold. In an antimicrobial activity assay, phometide A (1) exhibited significant inhibitory activity against Staphylococcus aureus with MIC value of 4 μg/mL. Phometide B (2) showed moderate antifungal activity against Candida albicans with an MIC value of 16 μg/mL. Furthermore, compounds 1 and 2 were evaluated for their acetylcholinesterase inhibitory and cytotoxic activities.
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Affiliation(s)
- Yan Yang
- Department of Postgraduate, Kunming Medical University, Kunming 650500, China
| | - Gui-Ding Li
- Yunnan Key Laboratory of Stomatology, Department of Dental Research, The Affiliated Stomatology Hospital of Kunming Medical University, Kunming 650106, China
| | - Ya-Ting Shao
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Zhong-Wen Sun
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Lai-Wei Li
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Wei Li
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China.
| | - Hong-Tao Li
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China; College of Modern Biomedical Industry, Kunming Medical University, Kunming 650500, China.
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5
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Li CY, Li HT, Shao YT, Guo XY, Li W, Yin TP. Regulation of secondary metabolites in the endophytic fungus Penicillium sp. KMU18029 by the chemical epigenetic modifier 5-azacitidine. Nat Prod Res 2024; 38:581-588. [PMID: 36855227 DOI: 10.1080/14786419.2023.2183199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 02/16/2023] [Indexed: 03/02/2023]
Abstract
The chemical epigenetic modifier 5-azacitidine (5-Aza C), a DNA methyltransferase inhibitor, was used to manipulate the endophytic fungus Penicillium sp. KMU18029. From its rice fermentation extract, a new polyketone compound (3S,4R)-3,4,8-trihydroxy-6-methyl-3,4-dihydronaphthalen-1(2H)-one (1), along with 13 known compounds, 3,4,8-trihydroxy-6-(hydroxymethyl)-3,4-dihydronaphthalen-1(2H)-one (2), decaturin B (3), 15-hydroxydecaturin A (4), oxalicine A (5), pileotin A (6), pyrandecarurin A (7), decaturenol A (8), decaturenoid (9), penisarins A (10), oxaline (11), (4E,8E)-N-D-2'-hydroxyocta-decanoyl-1-O-β-D-glycopy-ranosyl-9-methyl-4,8-sphingadienine (12), ergosterol (13) and stigma-5-en-3-O-β-glucoside (14), were separated. Among the known compounds, 2, 7, 12 and 14 were not found in our previous research on this strain. The structure of the new compound was identified by spectroscopic techniques such as HR-ESIMS, 1D NMR, 2D NMR and CD. Furthermore, all the isolated compounds were tested for their antimicrobial activities, and only compounds 1, 2 and 11 showed weak activities against S. aureus, with MICs of 128 μg/mL.
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Affiliation(s)
- Chang-Yan Li
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Hong-Tao Li
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Ya-Ting Shao
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Xing-Yi Guo
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Wei Li
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Tian-Peng Yin
- Faculty of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
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6
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Lv H, Li WJ, Xu P, Tang JG, Zheng Y, Wan Y, Lin Y, Wang H, Li XN. Structural diversity of microbial secondary metabolites based on chemical epigenetic manipulation. Bioorg Chem 2024; 143:107093. [PMID: 38185012 DOI: 10.1016/j.bioorg.2023.107093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/09/2023] [Accepted: 12/31/2023] [Indexed: 01/09/2024]
Abstract
Fungi are microorganisms with biosynthetic potential that are capable of producing a wide range of chemically diverse and biologically interesting small molecules. Chemical epigenetic manipulation has been increasingly explored as a simple and powerful tool to induce the production of additional microbial secondary metabolites in fungi. This review focuses on chemical epigenetic manipulation in fungi and summarizes 379 epigenetic manipulation products discovered from 2008 to 2022 to promote the discovery of their medicinal value.
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Affiliation(s)
- Huawei Lv
- College of Pharmaceutical Science & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China
| | - Wen-Jing Li
- College of Pharmaceutical Science & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China
| | - Ping Xu
- College of Pharmaceutical Science & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jia-Gui Tang
- College of Pharmaceutical Science & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yu Zheng
- College of Pharmaceutical Science & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yu Wan
- College of Pharmaceutical Science & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yan Lin
- Department of Pharmacy, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China.
| | - Hong Wang
- College of Pharmaceutical Science & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Xing-Nuo Li
- College of Pharmaceutical Science & Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, Hangzhou 310014, China.
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7
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Zhang S, Xu Q, Ji C, Han X, Zhou Y, Liang C, Ma L, Sun W, Li Y, Yang Z, Zhao F, Tian Y. Study on secondary metabolites of endophytic fungus Diaporthe sp. AC1 induced by tryptophan analogs. Front Microbiol 2023; 14:1254609. [PMID: 37876783 PMCID: PMC10591187 DOI: 10.3389/fmicb.2023.1254609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 09/15/2023] [Indexed: 10/26/2023] Open
Abstract
Small molecule-induced fermentation of the endophytic fungus Diaporthe sp. AC1 originated from Artemisia argyi was executed to investigate its secondary metabolites. It was fermented in a culture medium containing 5-hydroxytryptophan (5-HTP), 1-methyl-L-tryptophan (1-MT), and tryptamine (TA), respectively. The antibacterial activities of crude extracts against pathogenic bacteria and pathogenic fungi were determined by using the Oxford cup method, while the cytotoxicity of crude extracts against cancer cells was determined by using the MTT method. The results showed that the secondary metabolites of Diaporthe sp. AC1 induced by 1-MT exhibited optimal antibacterial activity and tumor cytotoxicity. The induction conditions of 1-MT were optimized, and the antibacterial activities and tumor cytotoxicity of crude extracts under different induction conditions were investigated. As indicated, the optimal moment for 1-MT addition was before inoculation and its optimal concentration was 0.25 mM. Under these conditions, Diaporthe sp. AC1 was fermented and approximately 12 g of crude extracts was obtained. The crude extracts were then separated and purified to acquire nine monomer compounds, including three new compounds (1-3) and six known compounds (4-9). The antibacterial activities of the compounds against pathogenic bacteria and pathogenic fungi were investigated by using the microdilution method, while their cytotoxicity against cancer cells was analyzed by using the MTT method. The results demonstrated that Compound 1 exhibited moderate antibacterial activities against Verticillium dahlia, Fusarium graminearum, and Botrytis cinerea, as well as a low inhibitory activity against Listeria monocytogenes. Nevertheless, Compound 1 showed significant cytotoxicity against five cancer cells, with IC50 ranging from 12.26 to 52.52 μM. Compounds 2 and 3 exhibited negligible biological activity, while other compounds showed detectable inhibitory activities against pathogenic bacteria and cancer cells.
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Affiliation(s)
- Shikai Zhang
- Department of Microbiology, College of Life Science, Key Laboratory for Agriculture Microbiology, Shandong Agricultural University, Taian, China
| | - Qing Xu
- Department of Microbiology, College of Life Science, Key Laboratory for Agriculture Microbiology, Shandong Agricultural University, Taian, China
| | - Changbo Ji
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Xiaoyu Han
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Yang Zhou
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Chao Liang
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Linran Ma
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Weijian Sun
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Yanling Li
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Zhengyou Yang
- Department of Microbiology, College of Life Science, Key Laboratory for Agriculture Microbiology, Shandong Agricultural University, Taian, China
| | - Fengchun Zhao
- Department of Microbiology, College of Life Science, Key Laboratory for Agriculture Microbiology, Shandong Agricultural University, Taian, China
| | - Yuan Tian
- College of Life Science, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
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8
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Krstić G, Saidu MB, Barta A, Vágvölgyi M, Ali H, Zupkó I, Berkecz R, Gallah US, Rédei D, Hohmann J. Anticancer Meroterpenoids from Centrapalus pauciflorus leaves: Chromone- and 2,4-Chromadione-Monoterpene Derivatives. ACS OMEGA 2023; 8:31389-31398. [PMID: 37663471 PMCID: PMC10468835 DOI: 10.1021/acsomega.3c03884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/24/2023] [Indexed: 09/05/2023]
Abstract
Eight previously undescribed chromones, named pauciflorins F-M and two 5-methyl-2,4-chromadione derivatives named as pauciflorins N and O, were isolated from the methanol extract of the leaves of Centrapalus pauciflorus (Willd.) H.Rob. together with the known (+)-spiro-ethuliacoumarin. The structures were determined via extensive spectroscopic analyses, including HRESIMS, 1D NMR (1H, 13C JMOD), and 2D NMR (HSQC, HMBC, 1H-1H COSY, and NOESY) experiments. Through an MTT assay, seven isolated compounds were tested for their antiproliferative properties against human adherent breast (MCF-7, MDA-MB-231), cervical (HeLa, SiHa), and ovarian (A2780) cancer cell lines. Pauciflorin F was effective against MCF-7 breast cancer cells, its activity (IC50 5.78 μM) was comparable to that of the reference agent cisplatin (IC50 5.78 μM).
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Affiliation(s)
- Gordana Krstić
- Department
of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
- University
of Belgrade, Faculty of Chemistry, Studentski trg 12-16, 11158 Belgrade, Serbia
| | - Muhammad Bello Saidu
- Department
of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
| | - Anita Barta
- Department
of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
| | - Máté Vágvölgyi
- Department
of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
| | - Hazhmat Ali
- Institute
of Pharmacodynamics and Biopharmacy, University
of Szeged, Eötvös
u. 6, 6720 Szeged, Hungary
| | - István Zupkó
- Institute
of Pharmacodynamics and Biopharmacy, University
of Szeged, Eötvös
u. 6, 6720 Szeged, Hungary
| | - Róbert Berkecz
- Institute
of Pharmaceutical Analysis, University of
Szeged, Somogyi u. 4, 6720 Szeged, Hungary
| | - Umar Shehu Gallah
- Bioresource
Department, National Research Institute
for Chemical Technology (NARICT), Zaria 1052, Nigeria
| | - Dóra Rédei
- Department
of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
| | - Judit Hohmann
- Department
of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
- ELKH-USZ
Biologically Active Natural Products Research Group, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
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9
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Morehouse NJ, Clark TN, Kerr RG, Johnson JA, Gray CA. Caryophyllene Sesquiterpenes from a Chaetomium globosum Endophyte of the Canadian Medicinal Plant Empetrum nigrum. JOURNAL OF NATURAL PRODUCTS 2023; 86:1615-1619. [PMID: 37267043 DOI: 10.1021/acs.jnatprod.2c01159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Punctaporonins T (1) and U (2), new caryophyllene sesquiterpenes, were isolated with three known punctaporonins, A (3), B (4), and C (5), from the endophytic fungus Chaetomium globosum (TC2-041). The structures and relative configurations of punctaporonins T and U were elucidated based on a combination of HRESIMS, 1D/2D NMR spectroscopic analysis, and X-ray diffraction analysis, while their absolute configuration is presumed to be consistent with the co-isolated 3-5 on biogenetic arguments. Compound 1 showed weak inhibitory activity against both Mycobacterium tuberculosis and Staphylococcus aureus.
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Affiliation(s)
- Nicholas J Morehouse
- Department of Biological Sciences, University of New Brunswick, 100 Tucker Park Road, Saint John, NB E2L 4L5, Canada
| | - Trevor N Clark
- Department of Biological Sciences, University of New Brunswick, 100 Tucker Park Road, Saint John, NB E2L 4L5, Canada
| | - Russell G Kerr
- Nautilus Biosciences Canada Inc., 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
- Department of Chemistry, University of Prince Edward Island, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
- Department of Biomedical Sciences, Atlantic Veterinary College, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
| | - John A Johnson
- Department of Biological Sciences, University of New Brunswick, 100 Tucker Park Road, Saint John, NB E2L 4L5, Canada
| | - Christopher A Gray
- Department of Biological Sciences, University of New Brunswick, 100 Tucker Park Road, Saint John, NB E2L 4L5, Canada
- Department of Chemistry, University of New Brunswick, 30 Dineen Drive, Fredericton, NB E3B 5A3, Canada
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10
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Wang Z, Li Z, Niu C, Yang L, Zhai Y, Li D, Wu G, Zhang Z, He X. Aniline-induced production of aniline-containing polyketides and related bicyclic polyketides by the Yellow River wetland-derived fungus Talaromyces funiculosus. Front Microbiol 2023; 14:1200680. [PMID: 37266016 PMCID: PMC10230029 DOI: 10.3389/fmicb.2023.1200680] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 04/24/2023] [Indexed: 06/03/2023] Open
Abstract
Introduction and Methods Silencing gene activation can effectively enrich the diversity of fungal secondary metabolites. Results and Discussion Cultivation of the Yellow River wetland-derived fungus Talaromyces funiculosus HPU-Y01 with aniline led to the isolation of one new aniline-containing polyketide tanicutone A (1), two new bicyclic polyketides tanicutones B-C (2-3), a new related trienoic acid 8-methyldeca-2,4,6-trienoic acid (5), and a known compound 4. The planar structures and configurations of 1-5 were determined by NMR, MS, and ECD calculations. Compound 2 featured a key aldehyde group and showed promising inhibitory activity against Vibrio parahaemolyticus with a minimum inhibitory concentration (MIC) value of 0.17 μg/mL. This is a rare report of aniline-induced fungal production of tetrahydronaphthone polyketides.
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Affiliation(s)
- Zhenhui Wang
- School of Medicine, Henan Polytechnic University, Jiaozuo, China
| | - Zhanlin Li
- School of Medicine, Henan Polytechnic University, Jiaozuo, China
| | - Chao Niu
- School of Medicine, Henan Polytechnic University, Jiaozuo, China
| | - Lanping Yang
- School of Medicine, Henan Polytechnic University, Jiaozuo, China
| | - Yangyang Zhai
- School of Medicine, Henan Polytechnic University, Jiaozuo, China
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Guangwei Wu
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Zhenzhen Zhang
- School of Medicine, Henan Polytechnic University, Jiaozuo, China
| | - Xueqian He
- School of Medicine, Henan Polytechnic University, Jiaozuo, China
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11
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Nicoletti R, Andolfi A, Becchimanzi A, Salvatore MM. Anti-Insect Properties of Penicillium Secondary Metabolites. Microorganisms 2023; 11:1302. [PMID: 37317276 DOI: 10.3390/microorganisms11051302] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/13/2023] [Accepted: 05/14/2023] [Indexed: 06/16/2023] Open
Abstract
In connection with their widespread occurrence in diverse environments and ecosystems, fungi in the genus Penicillium are commonly found in association with insects. In addition to some cases possibly implying a mutualistic relationship, this symbiotic interaction has mainly been investigated to verify the entomopathogenic potential in light of its possible exploitation in ecofriendly strategies for pest control. This perspective relies on the assumption that entomopathogenicity is often mediated by fungal products and that Penicillium species are renowned producers of bioactive secondary metabolites. Indeed, a remarkable number of new compounds have been identified and characterized from these fungi in past decades, the properties and possible applications of which in insect pest management are reviewed in this paper.
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Affiliation(s)
- Rosario Nicoletti
- Council for Agricultural Research and Economics, Research Center for Olive, Fruit and Citrus Crops, 81100 Caserta, Italy
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
| | - Anna Andolfi
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
- BAT Center-Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples Federico II, 80055 Portici, Italy
| | - Andrea Becchimanzi
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
- BAT Center-Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples Federico II, 80055 Portici, Italy
| | - Maria Michela Salvatore
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
- Institute for Sustainable Plant Protection, National Research Council, 80055 Portici, Italy
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12
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Guo XY, Li HT, Shao YT, Li CY, Huang WY, Li W. Bioactive sorbicillinoids from a rhizospheric soil-derived Paecilomyces sp. KMU21009. Fitoterapia 2023; 166:105443. [PMID: 36736743 DOI: 10.1016/j.fitote.2023.105443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023]
Abstract
A new hybrid sorbicillinoid named paeciureallin (1) and a new monomeric sorbicillinoid named paecillyketide (2), along with six known analogues (3-8), were isolated from the rhizospheric soil-derived fungus Paecilomyces sp. KMU21009 associated with Delphinium yunnanense. Their structures were elucidated by extensive spectroscopic analysis and comparison with literature values. Paeciureallin (1) is the first example of hybrid sorbicillinoids possessing a rare sorbicillinoid urea unit and containing a β-D-ribofuranose functionality. In pharmacological studies, compounds 1 and 2 were evaluated for in vitro anti-inflammatory and cytotoxic activities. Paeciureallin (1) exhibited moderate cytotoxicity against SW480 and A549 cell lines, and the IC50 values were 32.0 ± 0.1 and 34.4 ± 2.0 μM, respectively.
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Affiliation(s)
- Xing-Yi Guo
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Hong-Tao Li
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Ya-Ting Shao
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Chang-Yan Li
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Wen-Yu Huang
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Wei Li
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China.
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13
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Xue M, Hou X, Fu J, Zhang J, Wang J, Zhao Z, Xu D, Lai D, Zhou L. Recent Advances in Search of Bioactive Secondary Metabolites from Fungi Triggered by Chemical Epigenetic Modifiers. J Fungi (Basel) 2023; 9:jof9020172. [PMID: 36836287 PMCID: PMC9961798 DOI: 10.3390/jof9020172] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/20/2023] [Accepted: 01/21/2023] [Indexed: 01/31/2023] Open
Abstract
Genomic analysis has demonstrated that many fungi possess essential gene clusters for the production of previously unobserved secondary metabolites; however, these genes are normally reduced or silenced under most conditions. These cryptic biosynthetic gene clusters have become treasures of new bioactive secondary metabolites. The induction of these biosynthetic gene clusters under stress or special conditions can improve the titers of known compounds or the production of novel compounds. Among the inducing strategies, chemical-epigenetic regulation is considered a powerful approach, and it uses small-molecule epigenetic modifiers, which mainly act as the inhibitors of DNA methyltransferase, histone deacetylase, and histone acetyltransferase, to promote changes in the structure of DNA, histones, and proteasomes and to further activate cryptic biosynthetic gene clusters for the production of a wide variety of bioactive secondary metabolites. These epigenetic modifiers mainly include 5-azacytidine, suberoylanilide hydroxamic acid, suberoyl bishydroxamic acid, sodium butyrate, and nicotinamide. This review gives an overview on the method of chemical epigenetic modifiers to trigger silent or low-expressed biosynthetic pathways to yield bioactive natural products through external cues of fungi, mainly based on the research progress in the period from 2007 to 2022. The production of about 540 fungal secondary metabolites was found to be induced or enhanced by chemical epigenetic modifiers. Some of them exhibited significant biological activities such as cytotoxic, antimicrobial, anti-inflammatory, and antioxidant activity.
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14
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Hill RA, Sutherland A. Hot off the Press. Nat Prod Rep 2022. [PMID: 35929527 DOI: 10.1039/d2np90026b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A personal selection of 32 recent papers is presented covering various aspects of current developments in bioorganic chemistry and novel natural products such as hyperispirone A from Hypericum beanii.
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Affiliation(s)
- Robert A Hill
- School of Chemistry, Glasgow University, Glasgow, UK, G12 8QQ.
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