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Ha Y, Zhou Y, Ma M, Wang N, Wang P, Zhang Z. Antimicrobial metabolites from the marine-derived fungus Aspergillus sp. ZZ1861. PHYTOCHEMISTRY 2024; 224:114164. [PMID: 38797256 DOI: 10.1016/j.phytochem.2024.114164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/21/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
Fungi from the genus Aspergillus are important resources for the discovery of bioactive agents. This investigation characterized the isolation, structural elucidation, and antimicrobial evaluation of 46 metabolites produced by the marine-derived fungus Aspergillus sp. ZZ1861 in rice solid and potato dextrose broth liquid media. The structures of these isolated compounds were determined based on their HRESIMS data, NMR spectral analyses, and data from ECD, NMR, and optical rotation calculations. Emericelactones F and G, 20R,25S-preshamixanthone, 20R,25R-preshamixanthone, phthalimidinic acid A, phthalimidinic acid B, aspergilol G, and 2-hydroxyemodic amide are eight previously undescribed compounds and (S)-2-(5-hydroxymethyl-2-formylpyrrol-1-yl) propionic acid lactone is reported from a natural resource for the first time. It is also the first report of the configurations of 25S-O-methylarugosin A, 25R-O-methylarugosin A, 5R-(+)-9-hydroxymicroperfuranone, and 5R-(+)-microperfuranone. Phthalimidinic acid A, phthalimidinic acid B, aspergilol G, and 2-hydroxyemodic amide have antifungal activity against Candida albicans with MIC values of 1.56, 3.12, 1.56, and 12.5 μg/mL, respectively, 20R,25S-preshamixanthone (MIC 25 μg/mL) shows antibacterial activity against Escherichia coli, and 20R,25R-preshamixanthone exhibits antimicrobial activity against all three tested pathogens of methicillin-resistant Staphylococcus aureus, E. coli, and C. albicans with MIC values of 50, 25, 25 μg/mL, respectively.
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Affiliation(s)
- Yura Ha
- Ocean College, Zhoushan Campus, Zhejiang University, Zhoushan, 316021, China
| | - Yufang Zhou
- Zhejiang Marine Development Research Institute, Zhoushan, 316000, China
| | - Mingzhu Ma
- Zhejiang Marine Development Research Institute, Zhoushan, 316000, China
| | - Nan Wang
- Ocean College, Zhoushan Campus, Zhejiang University, Zhoushan, 316021, China; Hainan Institute of Zhejiang University, Sanya, 572025, China.
| | - Pengbin Wang
- Ocean College, Zhoushan Campus, Zhejiang University, Zhoushan, 316021, China; Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, 310012, China.
| | - Zhizhen Zhang
- Ocean College, Zhoushan Campus, Zhejiang University, Zhoushan, 316021, China.
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Chang JL, Gan YT, Zhou YH, Peng XG, Xie ZY, Meng X, Li SM, Ruan HL. Asperustins A-J: Austocystins with Immunosuppressive and Cytotoxic Activities from Aspergillus ustus NRRL 5856. JOURNAL OF NATURAL PRODUCTS 2024; 87:966-975. [PMID: 38441877 DOI: 10.1021/acs.jnatprod.3c01243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Ten new (1-10) and nine known (11-19) austocystins, along with four known anthraquinones (20-23), were isolated from the culture of Aspergillus ustus NRRL 5856 by bioactivity-guided fractionation. The structures of the new compounds were elucidated by spectroscopic data analysis, X-ray crystallographic study, the modified Mosher's method, [Rh2(OCOCF3)4]-induced ECD spectral analysis, and comparison of the experimental ECD spectra with those of the similar analogues. Compounds 1-8 represent the first examples of austocystins with a C-4' oxygenated substitution. The absolute configuration of 1″-hydroxy austocystin D (11) was determined by single-crystal X-ray diffraction and consideration of its biosynthetic origin. Compounds 5, 9, and 11 exhibited significant inhibitory effects against the proliferation of ConA-induced T cells with IC50 values of 1.1, 1.0, and 0.93 μM, respectively. Furthermore, these compounds suppressed the expression of IL-6 in a dose-dependent manner. Compounds 10-12 and 14 showed pronounced cytotoxicities against MCF-7 with IC50 values of 3.9, 1.3, 0.46, and 2.3 μM, respectively.
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Affiliation(s)
- Jin-Ling Chang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Wuhan 430030, People's Republic of China
| | - Yu-Tian Gan
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Wuhan 430030, People's Republic of China
- Xiangyang Hospital of Traditional Chinese Medicine, Xiangyang 441000, People's Republic of China
| | - Yin-Hui Zhou
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Wuhan 430030, People's Republic of China
| | - Xiao-Gang Peng
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Wuhan 430030, People's Republic of China
| | - Zuo-Ye Xie
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Wuhan 430030, People's Republic of China
| | - Xianggao Meng
- College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
| | - Shu-Ming Li
- Institut für Pharmazeutische Biologie und Biotechnologie, Fachbereich Pharmazie, Philipps-Universität Marburg, Robert-Koch Straße 4, 35037 Marburg, Germany
| | - Han-Li Ruan
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Wuhan 430030, People's Republic of China
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Alijani Mamaghani N, Masiello M, Somma S, Moretti A, Saremi H, Haidukowski M, Altomare C. Endophytic Alternaria and Fusarium species associated to potato plants ( Solanum tuberosum L.) in Iran and their capability to produce regulated and emerging mycotoxins. Heliyon 2024; 10:e26385. [PMID: 38434378 PMCID: PMC10907534 DOI: 10.1016/j.heliyon.2024.e26385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 01/19/2024] [Accepted: 02/12/2024] [Indexed: 03/05/2024] Open
Abstract
Endophytic fungi live inside virtually every plant species, without causing any apparent disease or damage to the host. Nevertheless, under particular conditions, mutualistic lifestyle of endophytes may change to pathogenic. In this study, the biodiversity of Alternaria and Fusarium species, the two most abundant endophytic fungi isolated from healthy potato plants in two climatically different regions of Iran, Ardebil in the north-west and Kerman in the south-east, was investigated. Seventy-five Fusarium strains and 83 Alternaria strains were molecularly characterized by multi-locus gene sequencing. Alternaria strains were characterized by the sequences of gpd and caM gene fragments and the phylogenetic tree was resolved in 3 well-separated clades. Seventy-three strains were included in the clade A, referred as Alternaria section, 6 strains were included in clade B, referred as Ulocladioides section, and 4 strains were included in clade C, referred as Infectoriae section. Fusarium strains, identified by sequencing the translation elongation factor 1α (tef1), β-tubulin (tub2) and internal transcribed spacer (ITS) genomic regions, were assigned to 13 species, viz. F. brachygibosum, F. clavum, F. equiseti, F. flocciferum, F. incarnatum, F. nirenbergiae, F. nygamai, F. oxysporum, F. proliferatum, F. redolens, F. sambucinum, F. solani and F. thapsinum. Twenty-six selected strains, representative of F. equiseti, F. nirenbergiae, F. oxysporum, F. nygamai, F. proliferatum, and F. sambucinum, were also tested for production of the mycotoxins deoxynivalenol (DON), nivalenol (NIV), diacetoxyscirpenol (DAS), T-2 toxin (T-2), beauvericin (BEA), enniatins (ENNs), fumonisins (FBs), fusaric acid (FA) and moniliformin (MON). None of the tested strains produced trichothecene toxins (DON, NIV, DAS and T-2). Two out of 2 F. equiseti isolates, 1/6 F. oxysporum, 1/3 F. proliferatum, and 1/9 F. nygamai did not produce any of the tested toxins; the rest of strains produced one or more BEA, ENNs, FBs, FA and MON toxins. The most toxigenic strain, F. nygamai ITEM-19012, produced the highest quantities of FBs (7946, 4693 and 4333 μg/g of B1, B2, and B3 respectively), along with the highest quantities of both BEA (4190 μg/g) and MON (538 μg/g). These findings suggest that contamination of potato tubers with mycotoxins in the field or at post-harvest, due to a change in lifestyle of endophytic microflora, should be carefully considered and furtherly investigated.
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Affiliation(s)
- Nasim Alijani Mamaghani
- Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, 77871-31587, Karaj, Iran
| | - Mario Masiello
- Institute of Sciences of Food Production, National Research Council, 70126, Bari, Italy
| | - Stefania Somma
- Institute of Sciences of Food Production, National Research Council, 70126, Bari, Italy
| | - Antonio Moretti
- Institute of Sciences of Food Production, National Research Council, 70126, Bari, Italy
| | - Hossein Saremi
- Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, 77871-31587, Karaj, Iran
| | - Miriam Haidukowski
- Institute of Sciences of Food Production, National Research Council, 70126, Bari, Italy
| | - Claudio Altomare
- Institute of Sciences of Food Production, National Research Council, 70126, Bari, Italy
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Hao YJ, Zou ZB, Xie MM, Zhang Y, Xu L, Yu HY, Ma HB, Yang XW. Ferroptosis Inhibitory Compounds from the Deep-Sea-Derived Fungus Penicillium sp. MCCC 3A00126. Mar Drugs 2023; 21:md21040234. [PMID: 37103373 PMCID: PMC10144380 DOI: 10.3390/md21040234] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/27/2023] [Accepted: 04/07/2023] [Indexed: 04/28/2023] Open
Abstract
Two new xanthones (1 and 2) were isolated from the deep-sea-derived fungus Penicillium sp. MCCC 3A00126 along with 34 known compounds (3-36). The structures of the new compounds were established by spectroscopic data. The absolute configuration of 1 was validated by comparison of experimental and calculated ECD spectra. All isolated compounds were evaluated for cytotoxicity and ferroptosis inhibitory activities. Compounds 14 and 15 exerted potent cytotoxicity against CCRF-CEM cells, with IC50 values of 5.5 and 3.5 μM, respectively, whereas 26, 28, 33, and 34 significantly inhibited RSL3-induced ferroptosis, with EC50 values of 11.6, 7.2, 11.8, and 2.2 μM, respectively.
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Affiliation(s)
- You-Jia Hao
- College of Marine Sciences, Shanghai Ocean University, 999 Hucheng Ring Road, Shanghai 201306, China
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Zheng-Biao Zou
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Ming-Min Xie
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Yong Zhang
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Lin Xu
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Hao-Yu Yu
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
| | - Hua-Bin Ma
- Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, China
| | - Xian-Wen Yang
- Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, 184 Daxue Road, Xiamen 361005, China
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Mahana A, Hammoda HM, Saad MMG, Radwan MM, ElSohly MA, Ghareeb DA, Harraz FM, Shawky E. Bio-guided isolation of potential anti-inflammatory constituents of some endophytes isolated from the leaves of ground cherry (Physalis pruinosa L.) via ex-vivo and in-silico studies. BMC Complement Med Ther 2023; 23:103. [PMID: 37013553 PMCID: PMC10069101 DOI: 10.1186/s12906-023-03934-9] [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: 10/05/2022] [Accepted: 03/22/2023] [Indexed: 04/05/2023] Open
Abstract
BACKGROUND Due to the extensive potential of previously studied endophytes in addition to plants belonging to genus Physalis as a source of anti-inflammatory constituents, the present study aimed at isolation for the first time some endophytic fungi from the medicinal plant Physalis pruinosa. METHODS The endophytic fungi were isolated from the fresh leaves of P. pruinosa then purified and identified by both morphological and molecular methods. Comparative evaluation of the cytotoxic and ex vivo anti-inflammatory activity in addition to gene expression of the three pro-inflammatory indicators (TNF-α, IL-1β and INF-γ) was performed in WBCs treated with lipopolysaccharide (LPS) for the identified endophytes, isolated compounds and the standard anti-inflammatory drug (piroxicam). For prediction of the binding mode of the top-scoring constituents-targets complexes, the Schrödinger Maestro 11.8 package (LLC, New York, NY) was employed in the docking study. RESULTS A total of 50 endophytic fungal isolates were separated from P. pruinosa leaves. Selection of six representative isolates was performed for further bioactivity screening based on their morphological characters, which were then identified as Stemphylium simmonsii MN401378, Stemphylium sp. MT084051, Alternaria infectoria MT573465, Alternaria alternata MZ066724, Alternaria alternata MN615420 and Fusarium equiseti MK968015. It could be observed that A. alternata MN615420 extract was the most potent anti-inflammatory candidate with a significant downregulation of TNF-α. Moreover, six secondary metabolites, alternariol monomethyl ether (1), 3'-hydroxyalternariol monomethyl ether (2), alternariol (3), α-acetylorcinol (4), tenuazonic acid (5) and allo-tenuazonic acid (6) were isolated from the most potent candidate (A. alternata MN615420). Among the tested isolated compounds, 3'-hydroxyalternariol monomethyl ether showed the highest anti-inflammatory potential with the most considerable reductions in the level of INF-γ and IL-1β. Meanwhile, alternariol monomethyl ether was the most potent TNF-α inhibitor. The energy values for the protein (IL-1β, TNF-α and INF-γ)-ligand interaction for the best conformation of the isolated compounds were estimated using molecular docking analysis. CONCLUSIONS The results obtained suggested alternariol derivatives may serve as naturally occurring potent anti-inflammatory candidates. This study opens new avenues for the design and development of innovative anti-inflammatory drugs that specifically target INF-γ, IL-1β and INF-γ.
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Affiliation(s)
- Asmaa Mahana
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Egypt, 21521, Alexandria, Egypt
| | - Hala M Hammoda
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Egypt, 21521, Alexandria, Egypt
| | - Mona M G Saad
- Department of Pesticide Chemistry and Technology, Faculty of Agriculture, Alexandria University, 21545-El-Shatby, Alexandria, Egypt
| | - Mohamed M Radwan
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Egypt, 21521, Alexandria, Egypt
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, MS, 38677, Mississippi, USA
| | - Mahmoud A ElSohly
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, MS, 38677, Mississippi, USA
- Department of Pharmaceutics and Drug Delivery, University of Mississippi, MS, 38677, Mississippi, USA
| | - Doaa A Ghareeb
- Bio-screening and Preclinical Trial Lab, Biochemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
- Biochemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Fathallah M Harraz
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Egypt, 21521, Alexandria, Egypt
| | - Eman Shawky
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Egypt, 21521, Alexandria, Egypt.
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Lv H, Zhang J, Xue Y, Li S, Sun X, Jia J, Bi H, Wang S, Su H, Zhu M, Wang H, Hong K, Li X. Two New Austocystin Analogs from the Marine-Derived Fungus Aspergillus sp. WHUF05236. Chem Biodivers 2022; 19:e202200207. [PMID: 35419971 DOI: 10.1002/cbdv.202200207] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 04/13/2022] [Indexed: 11/09/2022]
Abstract
Two new austocystin analogs, austocystin P (1) and austocystin Q (2), along with fourteen known compounds (3-16) were isolated from the fermentation extract of Aspergillus sp. WHUF05236. The planar structures of 1 and 2 were elucidated through 1D, 2D NMR and MS analyses. Their absolute configurations were determined by the time-dependent density functional (TDDFT)-ECD calculation. Compounds 3, 11, and 12 exhibited antimicrobial activities against Helicobacter pylori with MIC values ranging from 20.00 to 43.47 μM. Compounds 3, 6, and 7 showed cytotoxicities against the human colon cancer cell lines Hct-116 with IC50 values of 101.79, 65.46, and 36.72 μM, respectively.
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Affiliation(s)
- Huawei Lv
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hangzhou, P. R. China
| | - Jinkun Zhang
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hangzhou, P. R. China
| | - Yaxin Xue
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, 430071, Wuhan, P. R. China
| | - Songwei Li
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hangzhou, P. R. China
| | - Xiaoyu Sun
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, 430071, Wuhan, P. R. China
| | - Jia Jia
- Department of Pathogen Biology & Jiangsu Key Laboratory of Pathogen Biology, Nanjing Medical University, 211166, Nanjing, P. R. China
| | - Hongkai Bi
- Department of Pathogen Biology & Jiangsu Key Laboratory of Pathogen Biology, Nanjing Medical University, 211166, Nanjing, P. R. China
| | - Shoubao Wang
- Beijing Key Laboratory of Drug Target Research and New Drug Screening, Institute of Materia Medica, Chinese Academy of Medical Sciences, 100050, Beijing, P. R. China
| | - Haibo Su
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hangzhou, P. R. China
| | - Mengdi Zhu
- Research Center of Analysis and Measurement, Zhejiang University of Technology, 310014, Hangzhou, P. R. China
| | - Hong Wang
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hangzhou, P. R. China
| | - Kui Hong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences, Wuhan University, 430071, Wuhan, P. R. China
| | - Xingnuo Li
- College of Pharmaceutical Science & Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Zhejiang University of Technology, 310014, Hangzhou, P. R. China
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