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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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2
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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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3
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Rybczyńska-Tkaczyk K, Grenda A, Jakubczyk A, Krawczyk P. Natural Bacterial and Fungal Peptides as a Promising Treatment to Defeat Lung Cancer Cells. Molecules 2023; 28:molecules28114381. [PMID: 37298856 DOI: 10.3390/molecules28114381] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/22/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
Despite the increasing availability of modern treatments, including personalized therapies, there is a strong need to search for new drugs that will be effective in the fight against cancer. The chemotherapeutics currently available to oncologists do not always yield satisfactory outcomes when used in systemic treatments, and patients experience burdensome side effects during their application. In the era of personalized therapies, doctors caring for non-small cell lung cancer (NSCLC) patients have been given a powerful weapon, namely molecularly targeted therapies and immunotherapies. They can be used when genetic variants of the disease qualifying for therapy are diagnosed. These therapies have contributed to the extension of the overall survival time in patients. Nevertheless, effective treatment may be hindered in the case of clonal selection of tumor cells with acquired resistance mutations. The state-of-the-art therapy currently used in NSCLC patients is immunotherapy targeting the immune checkpoints. Although it is effective, some patients have been observed to develop resistance to immunotherapy, but its cause is still unknown. Personalized therapies extend the lifespan and time to cancer progression in patients, but only those with a confirmed marker qualifying for the treatment (gene mutations/rearrangements or PD-L1 expression on tumor cells) can benefit from these therapies. They also cause less burdensome side effects than chemotherapy. The article is focused on compounds that can be used in oncology and produce as few side effects as possible. The search for compounds of natural origin, e.g., plants, bacteria, or fungi, exhibiting anticancer properties seems to be a good solution. This article is a literature review of research on compounds of natural origin that can potentially be used as part of NSCLC therapies.
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Affiliation(s)
- Kamila Rybczyńska-Tkaczyk
- Department of Environmental Microbiology, The University of Life Sciences, Leszczyńskiego Street 7, 20-069 Lublin, Poland
| | - Anna Grenda
- Department of Pneumonology, Oncology and Allergology, Medical University of Lublin, Jaczewskiego Street 8, 20-954 Lublin, Poland
| | - Anna Jakubczyk
- Department of Biochemistry and Food Chemistry, University of Life Sciences in Lublin, Skromna Street 8, 20-704 Lublin, Poland
| | - Paweł Krawczyk
- Department of Pneumonology, Oncology and Allergology, Medical University of Lublin, Jaczewskiego Street 8, 20-954 Lublin, Poland
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4
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Shevkar C, Pradhan P, Armarkar A, Pandey K, Kalia K, Paranagama P, Kate AS. Exploration of Potent Cytotoxic Molecules from Fungi in Recent Past to Discover Plausible Anticancer Scaffolds. Chem Biodivers 2022; 19:e202100976. [PMID: 35315213 DOI: 10.1002/cbdv.202100976] [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: 12/07/2021] [Accepted: 03/03/2022] [Indexed: 11/10/2022]
Abstract
Fungi are known to produce diverse scaffolds possessing unique biological activities, however, to date, no molecule discovered from a fungal source has reached the market as an anti-cancer drug. Every year number of cytotoxic molecules of fungal origin are getting published and critical analysis of those compounds is necessary to identify the potent ones. A review mentioning the best cytotoxic fungal metabolites and their status in the drug development was published in 2014. In this report, we have included 176 cytotoxic molecules isolated from fungi after 2014 and categorized them according to their potencies such as IC50 values below 1 μM, 1-5 μM, and 5-10 μM. The emphasis was given to those 42 molecules which have shown IC50 less than 1 μM and discussed to a great extent. This review shall provide potent scaffolds of fungal origin which can be given priority in the development as a drug candidate for cancer therapeutics.
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Affiliation(s)
- Chaitrali Shevkar
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India
| | - Pranali Pradhan
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India
| | - Ashwini Armarkar
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India
| | - Komal Pandey
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India
| | - Kiran Kalia
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India
| | - Priyani Paranagama
- Department of Chemistry, University of Kelaniya, Dalugama, Kelaniya, 11600, Sri Lanka
| | - Abhijeet S Kate
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, Ahmedabad, Gujarat, 382355, India
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5
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Flores-Bocanegra L, Al Subeh ZY, Egan JM, El-Elimat T, Raja HA, Burdette JE, Pearce CJ, Linington RG, Oberlies NH. Dereplication of Fungal Metabolites by NMR-Based Compound Networking Using MADByTE. JOURNAL OF NATURAL PRODUCTS 2022; 85:614-624. [PMID: 35020372 PMCID: PMC8957573 DOI: 10.1021/acs.jnatprod.1c00841] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Strategies for natural product dereplication are continually evolving, essentially in lock step with advances in MS and NMR techniques. MADByTE is a new platform designed to identify common structural features between samples in complex extract libraries using two-dimensional NMR spectra. This study evaluated the performance of MADByTE for compound dereplication by examining two classes of fungal metabolites, the resorcylic acid lactones (RALs) and spirobisnaphthalenes. First, a pure compound database was created using the HSQC and TOCSY data from 19 RALs and 10 spirobisnaphthalenes. Second, this database was used to assess the accuracy of compound class clustering through the generation of a spin system feature network. Seven fungal extracts were dereplicated using this approach, leading to the correct prediction of members of both families from the extract set. Finally, NMR-guided isolation led to the discovery of three new palmarumycins (20-22). Together these results demonstrate that MADByTE is effective for the detection of specific compound classes in complex mixtures and that this detection is possible for both known and new natural products.
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Affiliation(s)
- Laura Flores-Bocanegra
- Department
of Chemistry and Biochemistry, University
of North Carolina at Greensboro, Greensboro, North Carolina 27412, United States
| | - Zeinab Y. Al Subeh
- Department
of Chemistry and Biochemistry, University
of North Carolina at Greensboro, Greensboro, North Carolina 27412, United States
| | - Joseph M. Egan
- Department
of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Tamam El-Elimat
- Department
of Medicinal Chemistry and Pharmacognosy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid 22110, Jordan
| | - Huzefa A. Raja
- Department
of Chemistry and Biochemistry, University
of North Carolina at Greensboro, Greensboro, North Carolina 27412, United States
| | - Joanna E. Burdette
- Department
of Pharmaceutical Sciences, University of
Illinois at Chicago, Chicago, Illinois 60612, United States
| | - Cedric J. Pearce
- Mycosynthetix,
Inc., Hillsborough, North Carolina 27278, United States
| | - Roger G. Linington
- Department
of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Nicholas H. Oberlies
- Department
of Chemistry and Biochemistry, University
of North Carolina at Greensboro, Greensboro, North Carolina 27412, United States
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6
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Luo HZ, Jiang H, Sun B, Wang ZN, Jia AQ. Sesquiterpenoids and furan derivatives from the Orychophragmus violaceus (L.) O.E. Schulz endophytic fungus Irpex lacteus OV38. PHYTOCHEMISTRY 2022; 194:112996. [PMID: 34844037 DOI: 10.1016/j.phytochem.2021.112996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 10/17/2021] [Accepted: 10/29/2021] [Indexed: 06/13/2023]
Abstract
Nine undescribed compounds, including six tremulane-type sesquiterpenoids, irpexolaceus A-F, one phenolic bisabolane-type sesquiterpenoid, irpexolaceus G, and two furan derivatives, irpexonjust A-B, as well as eight known analogs, were isolated from an endophytic fungus (Irpex lacteus OV38) of Orychophragmus violaceus (L.) O.E. Schulz, a Chinese medicinal and edible plant. The structures of these natural compounds were elucidated based on NMR, HRESIMS, single-crystal X-ray diffraction, and ECD spectroscopic data. Among the tested isolates (50 μg/mL), the inhibitory effects of irpexolaceus A, C, D, F, and G, irpexonjust B, and irpexlacte B against NO release from LPS-induced RAW 264.7 cells were higher than 45%, while irpexlacte C (42.6%), irpexolaceus B (39.6%), irpexonjust A (43.7%), and irpexolaceus E (33.6%) exhibited weaker inhibitory effects on the release of NO.
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Affiliation(s)
- Huai-Zhi Luo
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China; School of Pharmaceutical Sciences, Engineering Research Center for Utilization of Tropical Polysaccharide Resources, Ministry of Education, Hainan University, Haikou, 570228, China
| | - Huan Jiang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Bing Sun
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Zhen-Nan Wang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Ai-Qun Jia
- School of Pharmaceutical Sciences, Engineering Research Center for Utilization of Tropical Polysaccharide Resources, Ministry of Education, Hainan University, Haikou, 570228, China.
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Hridoy M, Gorapi MZH, Noor S, Chowdhury NS, Rahman MM, Muscari I, Masia F, Adorisio S, Delfino DV, Mazid MA. Putative Anticancer Compounds from Plant-Derived Endophytic Fungi: A Review. Molecules 2022; 27:296. [PMID: 35011527 PMCID: PMC8746379 DOI: 10.3390/molecules27010296] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/22/2021] [Accepted: 12/28/2021] [Indexed: 02/05/2023] Open
Abstract
Endophytic fungi are microorganisms that exist almost ubiquitously inside the various tissues of living plants where they act as an important reservoir of diverse bioactive compounds. Recently, endophytic fungi have drawn tremendous attention from researchers; their isolation, culture, purification, and characterization have revealed the presence of around 200 important and diverse compounds including anticancer agents, antibiotics, antifungals, antivirals, immunosuppressants, and antimycotics. Many of these anticancer compounds, such as paclitaxel, camptothecin, vinblastine, vincristine, podophyllotoxin, and their derivatives, are currently being used clinically for the treatment of various cancers (e.g., ovarian, breast, prostate, lung cancers, and leukemias). By increasing the yield of specific compounds with genetic engineering and other biotechnologies, endophytic fungi could be a promising, prolific source of anticancer drugs. In the future, compounds derived from endophytic fungi could increase treatment availability and cost effectiveness. This comprehensive review includes the putative anticancer compounds from plant-derived endophytic fungi discovered from 1990 to 2020 with their source endophytic fungi and host plants as well as their antitumor activity against various cell lines.
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Affiliation(s)
- Md. Hridoy
- Department of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh;
- Department of Pharmaceutical Sciences, School of Pharmacy, Temple University, Philadelphia, PA 19140, USA
| | | | - Sadia Noor
- Department of Pharmacy, University of Asia Pacific, Dhaka 1215, Bangladesh; (M.Z.H.G.); (S.N.)
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | | | | | - Isabella Muscari
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (I.M.); (F.M.)
| | - Francesco Masia
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (I.M.); (F.M.)
| | - Sabrina Adorisio
- Department of Medicine and Surgery, Foligno Nursing School and Section of Pharmacology, University of Perugia, Piazzale Severi, S. Andrea delle Fratte, 06129 Perugia, Italy;
| | - Domenico V. Delfino
- Department of Medicine and Surgery, Foligno Nursing School and Section of Pharmacology, University of Perugia, Piazzale Severi, S. Andrea delle Fratte, 06129 Perugia, Italy;
| | - Md. Abdul Mazid
- Department of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh;
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
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8
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Liu X, Xu L, An X, Jiang J, Wang M. Synthesis and Larvicidal Activity of Palmarumycin B 6 Analogues. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109018] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Li Y, Kumar PS, Tan Q, Tan X, Yuan M, Luo J, He M. Diversity and chemical fingerprinting of endo-metabolomes from endophytes associated with Ampelopsis grossedentata (Hand.-Mazz.) W. T. Wang possessing antibacterial activity against multidrug resistant bacterial pathogens. J Infect Public Health 2021; 14:1917-1926. [PMID: 34728167 DOI: 10.1016/j.jiph.2021.10.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/29/2021] [Accepted: 10/14/2021] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND Serious infections caused by bacteria and their resistance to antibiotics are one of the biggest healthcare threats to mankind. Therefore, the present study aimed to isolate endophytes from medicinal plant Ampelopsis grossedentata, an endemic species of Western Hubei, China and to investigate its antibacterial efficacy and chemical diversity of the secondary metabolites. METHODS The antibacterial potential of the endophytes was evaluated by disc diffusion method against a panel of eleven type strains and some multidrug resistant pathogenic bacteria. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were estimated by broth microdilution using iodonitrotetrazolium chloride assay. Further, the chemical diversity of the metabolites was estimated using LC-Q-TOF-MS/MS and GC-MS fingerprinting. RESULTS Four endophytic fungi were isolated from the tender shoot of A. grossedentata; they were identified as Fusarium graminearum TC-1, Phomopsis mali TC-3, Pestalotiopsis maculans TC-5 and Alternaria alternata TC-11. Among the endophytes screened, A. alternata TC-11 exhibited significant antibacterial activity with the zones of inhibition ranging from 13.72 ± 0.30 to 21.76 ± 0.53 mm against all the tested type strains and multidrug resistant bacterial pathogens. Further, it showed significant antibacterial activity with MIC values ranging from 0.37 to 3.00 μg/mL. The combined LC-Q-TOF-MS/MS and GC-MS analyses of active extract revealed that alternarian acid, altertenuol, dimethyl sulfone, docosane, dodecane, duclauxin, ergosta-4,6,8(14),22-tetraen-3-one, ethyl 6-cyano-5-oxo-1-phenyl-7-thiophen-2-yl-[1,2,4]triazolo[4,3-a]pyrimidine-3-carboxylate, heptacosane, linoleic acid, neodecanoic acid, oxiranylmethyl ester, pentadecane, verrulactone E, 2,6,11-Trimethyldodecane and 4-[(E,4R,6R)-11-(furan-3-yl)-6-hydroxy-4,8-dimethylundec-8-enyl]-2-hydroxy-2H-furan-5-one were the most abundant compounds present which were responsible for the significant antibacterial activity. CONCLUSIONS To our knowledge, this is the first report of fungal endophytes isolated from the tender shoot of A. grossedentata with bacteriostatic and bactericidal activities. Our finding provides a new insight into the antibacterial potential of endophytes and envisages the possibility of using them for drug discovery.
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Affiliation(s)
- Yu Li
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, No. 253 Xueyuan Road, Enshi 445000, China
| | - Pachaiyappan Saravana Kumar
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, No. 253 Xueyuan Road, Enshi 445000, China.
| | - Quansheng Tan
- Enshi Central Hospital, No. 158, Wuyang Road, Enshi 445000, China
| | - Xuhui Tan
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, No. 253 Xueyuan Road, Enshi 445000, China
| | - Mingyuan Yuan
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, No. 253 Xueyuan Road, Enshi 445000, China
| | - Jianqiong Luo
- Enshi Selenium Commander and Ecological Agriculture Company, Xinyuan Building, Gold Road, Enshi 445000, China
| | - Meijun He
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, No. 253 Xueyuan Road, Enshi 445000, China.
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10
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Rhytidhylides A and B, Two New Phthalide Derivatives from the Endophytic Fungus Rhytidhysteron sp. BZM-9. Molecules 2021; 26:molecules26206092. [PMID: 34684677 PMCID: PMC8540479 DOI: 10.3390/molecules26206092] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 10/03/2021] [Accepted: 10/06/2021] [Indexed: 01/19/2023] Open
Abstract
Two new phthalide derivatives, rhytidhylides A (1) and B (2), together with ten known compounds (3–12) were isolated from cultures of Rhytidhysteron sp. BZM-9, an endophyte isolated from the leaves of Leptospermum brachyandrum. Their structures were identified by an extensive analysis of NMR, HRESIMS, ECD, and through comparison with data reported in the literature. In addition, the cytotoxic activities against two human hepatoma cell lines (HepG2 and SMMC7721) and antibacterial activities against MRSA and E. coli were evaluated.
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11
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Chen S, Cai R, Liu Z, Cui H, She Z. Secondary metabolites from mangrove-associated fungi: source, chemistry and bioactivities. Nat Prod Rep 2021; 39:560-595. [PMID: 34623363 DOI: 10.1039/d1np00041a] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Covering 1989 to 2020The mangrove forests are a complex ecosystem occurring at tropical and subtropical intertidal estuarine zones and nourish a diverse group of microorganisms including fungi, actinomycetes, bacteria, cyanobacteria, algae, and protozoa. Among the mangrove microbial community, mangrove associated fungi, as the second-largest ecological group of the marine fungi, not only play an essential role in creating and maintaining this biosphere but also represent a rich source of structurally unique and diverse bioactive secondary metabolites, attracting significant attention of organic chemists and pharmacologists. This review summarizes the discovery relating to the source and characteristics of metabolic products isolated from mangrove-associated fungi over the past thirty years (1989-2020). Its emphasis included 1387 new metabolites from 451 papers, focusing on bioactivity and the unique chemical diversity of these natural products.
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Affiliation(s)
- Senhua Chen
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China. .,School of Marine Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Runlin Cai
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China. .,College of Science, Shantou University, Shantou 515063, China
| | - Zhaoming Liu
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China. .,State Key Laboratory of Applied Microbiology Southern China, Guangdong Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Hui Cui
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China. .,School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Zhigang She
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China.
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12
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Prajapati J, Goswami D, Rawal RM. Endophytic fungi: A treasure trove of novel anticancer compounds. CURRENT RESEARCH IN PHARMACOLOGY AND DRUG DISCOVERY 2021; 2:100050. [PMID: 34909676 PMCID: PMC8663939 DOI: 10.1016/j.crphar.2021.100050] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/18/2021] [Accepted: 08/31/2021] [Indexed: 12/18/2022] Open
Abstract
Cancer is a multifactorial disease with a convoluted genesis and progression. The emergence of multidrug resistance to presently be offered drug and relapse is by far, the most critical concern to tackle this deteriorating disease. Henceforth, there is undeniably an inflated necessity for safe, promising, and less harmful new anticancer drugs. Natural compounds from various sources like plants, animals, and microorganisms have occupied a center stage in drug discovery due to their tremendous chemical diversity and potential as therapeutic agents. Endophytic microbes are symbiotically associated with plants and have been proven to produce novel or analogues of host bioactive metabolites exhibiting a variety of biological activities including anticancer activity. This review emphasizes on structurally diverse unprecedented anticancer natural compounds that have been reported exclusively from endophytic fungi from 2016 to 2020. It covers chemical nature of metabolites, its fungal source associated with terrestrial, as well as marine plants and anticancer activity based on their cytotoxicity profile against various cancer cell lines. Many of these fungal metabolites with promising anticancer activity can be used as lead molecules for in silico experiments and deserve special attention from scientists for further in vitro and clinical research.
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Affiliation(s)
- Jignesh Prajapati
- Department of Biochemistry & Forensic Science, University School of Sciences, Gujarat University, Ahmedabad, 380009, Gujarat, India
| | - Dweipayan Goswami
- Department of Microbiology & Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, 380009, Gujarat, India
| | - Rakesh M. Rawal
- Department of Biochemistry & Forensic Science, University School of Sciences, Gujarat University, Ahmedabad, 380009, Gujarat, India
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13
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Zhang S, Wang W, Tan J, Kang F, Chen D, Xu K, Zou Z. Rhytidhyesters A - D, 4 New Chlorinated Cyclopentene Derivatives from the Endophytic Fungus Rhytidhysteron sp. BZM-9. PLANTA MEDICA 2021; 87:489-497. [PMID: 33757146 DOI: 10.1055/a-1429-3396] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Four new chlorinated cyclopentene derivatives, rhytidhyesters A - D (1: - 4: ), were isolated from Rhytidhysteron sp. BZM-9, an endophytic fungus from Leptospermum brachyandrum. The planar structures of compounds 1: - 4: were mainly elucidated by 1D, 2D NMR, and HRESIMS data. Their absolute configurations were established by X-ray crystallographic analysis, quantum chemical 13C NMR, and electronic circular dichroism calculations. Compounds 1: and 2: are a pair of epimers. Moreover, all the isolated compounds were evaluated for cytotoxic activities against 3 human colon cancer cell lines (SW620, HT29, SW480) and antimicrobial activity against Staphylococcus aureus. All compounds exhibited weak to moderate antiproliferative activities with IC50 values ranging from 15.4 to 37.7 µM but were inactive against S. aureus.
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Affiliation(s)
- Sha Zhang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Wenxuan Wang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Jianbin Tan
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Fenghua Kang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Dekun Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Kangping Xu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Zhenxing Zou
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
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14
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Zheng R, Li S, Zhang X, Zhao C. Biological Activities of Some New Secondary Metabolites Isolated from Endophytic Fungi: A Review Study. Int J Mol Sci 2021; 22:959. [PMID: 33478038 PMCID: PMC7835970 DOI: 10.3390/ijms22020959] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 01/05/2023] Open
Abstract
Secondary metabolites isolated from plant endophytic fungi have been getting more and more attention. Some secondary metabolites exhibit high biological activities, hence, they have potential to be used for promising lead compounds in drug discovery. In this review, a total of 134 journal articles (from 2017 to 2019) were reviewed and the chemical structures of 449 new metabolites, including polyketides, terpenoids, steroids and so on, were summarized. Besides, various biological activities and structure-activity relationship of some compounds were aslo described.
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Affiliation(s)
| | | | | | - Changqi Zhao
- Gene Engineering and Biotechnology Beijing Key Laboratory, College of Life Science, Beijing Normal University, 19 XinjiekouWai Avenue, Beijing 100875, China; (R.Z.); (S.L.); (X.Z.)
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15
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Bioprospecting for Biomolecules from Different Fungal Communities: An Introduction. Fungal Biol 2021. [DOI: 10.1007/978-3-030-85603-8_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Gao S, Tian WJ, Liao ZJ, Wang GH, Zeng DQ, Liu XZ, Wang XY, Zhou H, Chen HF, Lin T. Chemical Constituents from Endophytic Fungus Annulohypoxylon cf. stygium in Leaves of Anoectochilus roxburghii. Chem Biodivers 2020; 17:e2000424. [PMID: 32672903 DOI: 10.1002/cbdv.202000424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 07/15/2020] [Indexed: 11/09/2022]
Abstract
The chemical investigation on endophytic fungus Annulohypoxylon cf. stygium in leaves of Anoectochilus roxburghii (Wall.) Lindl. has been performed. Sixteen compounds were isolated and their structures were identified as (-)-notoamide A, (-)-notoamide B, (+)-versicolamide B, notoamide C, notoamide D, stephacidin A, sterigmatocystin, dihydrosterigmatocystin, secosterigmatocystin, versiconol, averufanin, kipukasin D, kipukasin E, diorcinal, palmarumycin CP2 and (-)-(3R)-mellein methyl ether, respectively, by spectroscopic analysis and comparison with literature data. All the compounds were isolated from Annulohypoxylon genus for the first time. Sterigmatocystin and palmarumycin CP2 showed selective cytotoxic activities against HepG2, HeLa, MCF-7 and HT-29.
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Affiliation(s)
- Shuo Gao
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Wen-Jing Tian
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Zu-Jian Liao
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Guang-Hui Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - De-Quan Zeng
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Xiang-Zhong Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Xiao-Yao Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Hu Zhou
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Hai-Feng Chen
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
| | - Ting Lin
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361005, P. R. China
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17
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Yang XY, Zhang JX, Ding QY, He ZC, Zhu CY, Zhang KQ, Niu XM. Metabolites from Two Dominant Thermophilic Fungal Species Thermomyces lanuginosus and Scytalidium thermophilum. Chem Biodivers 2020; 17:e2000137. [PMID: 32207881 DOI: 10.1002/cbdv.202000137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 03/24/2020] [Indexed: 11/10/2022]
Abstract
Thermomyces lanuginosus and Scytalidium thermophilum are among the most ubiquitous thermophilic fungi in compost and soil. Chemical study on these two prevalent strains collected from Yunnan led to isolation of 23 metabolites, including one new metabolite, therlanubutanolide, and 15 known compounds, isolated from the YGP culture broth of Thermomyces lanuginosus and 7 known compounds isolated from Scytalidium thermophilum, respectively. Therlanubutanolide shared the quite similar features of the same carbon skeleton and saturation as natural hexadecanoic acids. This was the first reported discovery of such a lactone as natural occurring metabolite. All the compounds were reported for the first time from thermophilic fungi. Among them, N-[(2S,3R,4E,8E)-1,3-dihydroxy-9-methyloctadeca-4,8-dien-2-yl]acetamide was for the first time reported to be a naturally occurring metabolite and its NMR data was first provided in this study. A type of PKS-derived metabolites, three 3,4-dihydronaphthalen-1(2H)-ones, which were widely found in plant pathogenic fungi as phytotoxins and reported to have antimicrobial activity, were obtained from both dominant thermophilic fungi. The frequent occurrence of such PKS phytotoxins in these two thermophilic fungi might suggest particular ecological interest.
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Affiliation(s)
- Xiao-Yu Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources and Key Laboratory for Microbial Resources of the Ministry of Education, School of life Sciences, Yunnan University, Kunming, 650091, P. R. China
| | - Jun-Xian Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources and Key Laboratory for Microbial Resources of the Ministry of Education, School of life Sciences, Yunnan University, Kunming, 650091, P. R. China
| | - Qiu-Yan Ding
- State Key Laboratory for Conservation and Utilization of Bio-Resources and Key Laboratory for Microbial Resources of the Ministry of Education, School of life Sciences, Yunnan University, Kunming, 650091, P. R. China
| | - Zi-Cong He
- State Key Laboratory for Conservation and Utilization of Bio-Resources and Key Laboratory for Microbial Resources of the Ministry of Education, School of life Sciences, Yunnan University, Kunming, 650091, P. R. China
| | - Chun-Yan Zhu
- State Key Laboratory for Conservation and Utilization of Bio-Resources and Key Laboratory for Microbial Resources of the Ministry of Education, School of life Sciences, Yunnan University, Kunming, 650091, P. R. China
| | - Ke-Qin Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources and Key Laboratory for Microbial Resources of the Ministry of Education, School of life Sciences, Yunnan University, Kunming, 650091, P. R. China
| | - Xue-Mei Niu
- State Key Laboratory for Conservation and Utilization of Bio-Resources and Key Laboratory for Microbial Resources of the Ministry of Education, School of life Sciences, Yunnan University, Kunming, 650091, P. R. China
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18
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Yue Z, Lam HC, Chen K, Siridechakorn I, Liu Y, Pudhom K, Lei X. Biomimetic Synthesis of Rhytidenone A and Mode of Action of Cytotoxic Rhytidenone F. Angew Chem Int Ed Engl 2020; 59:4115-4120. [PMID: 31868281 DOI: 10.1002/anie.201914257] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/07/2019] [Indexed: 12/20/2022]
Abstract
The rhytidenone family comprises spirobisnaphthalene natural products isolated from the mangrove endophytic fungus Rhytidhysteron rufulum AS21B. The biomimetic synthesis of rhytidenone A was achieved by a Michael reaction/aldol/lactonization cascade in a single step from the proposed biosynthetic precursor rhytidenone F. Moreover, the mode of action of the highly cytotoxic rhytidenone F was investigated. The pulldown assay coupled with mass spectrometry analysis revealed the target protein PA28γ is covalently attached to rhytidenone F at the Cys92 residue. The interactions of rhytidenone F with PA28γ lead to the accumulation of p53, which is an essential tumor suppressor in humans. Consequently, the Fas-dependent signaling pathway is activated to initiate cellular apoptosis. These studies have identified the first small-molecule inhibitor targeting PA28γ, suggesting rhytidenone F may serve as a promising natural product lead for future anticancer drug development.
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Affiliation(s)
- Zongwei Yue
- School of Life Sciences, Peking University, Beijing, 100871, P. R. China.,Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, P. R. China
| | - Hiu C Lam
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, P. R. China
| | - Kaiqi Chen
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, P. R. China
| | - Ittipon Siridechakorn
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, P. R. China
| | - Yaxi Liu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, P. R. China
| | - Khanitha Pudhom
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Xiaoguang Lei
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Natural and Biomimetic Drugs, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, P. R. China
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19
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Yue Z, Lam HC, Chen K, Siridechakorn I, Liu Y, Pudhom K, Lei X. Biomimetic Synthesis of Rhytidenone A and Mode of Action of Cytotoxic Rhytidenone F. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Zongwei Yue
- School of Life Sciences Peking University Beijing 100871 P. R. China
- Beijing National Laboratory for Molecular Sciences State Key Laboratory of Natural and Biomimetic Drugs Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education Department of Chemical Biology College of Chemistry and Molecular Engineering Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences Peking University Beijing 100871 P. R. China
| | - Hiu C. Lam
- Beijing National Laboratory for Molecular Sciences State Key Laboratory of Natural and Biomimetic Drugs Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education Department of Chemical Biology College of Chemistry and Molecular Engineering Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences Peking University Beijing 100871 P. R. China
| | - Kaiqi Chen
- Beijing National Laboratory for Molecular Sciences State Key Laboratory of Natural and Biomimetic Drugs Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education Department of Chemical Biology College of Chemistry and Molecular Engineering Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences Peking University Beijing 100871 P. R. China
| | - Ittipon Siridechakorn
- Beijing National Laboratory for Molecular Sciences State Key Laboratory of Natural and Biomimetic Drugs Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education Department of Chemical Biology College of Chemistry and Molecular Engineering Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences Peking University Beijing 100871 P. R. China
| | - Yaxi Liu
- Beijing National Laboratory for Molecular Sciences State Key Laboratory of Natural and Biomimetic Drugs Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education Department of Chemical Biology College of Chemistry and Molecular Engineering Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences Peking University Beijing 100871 P. R. China
| | - Khanitha Pudhom
- Department of Chemistry Faculty of Science Chulalongkorn University Bangkok 10330 Thailand
| | - Xiaoguang Lei
- Beijing National Laboratory for Molecular Sciences State Key Laboratory of Natural and Biomimetic Drugs Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education Department of Chemical Biology College of Chemistry and Molecular Engineering Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences Peking University Beijing 100871 P. R. China
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20
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Pan R, Bai X, Chen J, Zhang H, Wang H. Exploring Structural Diversity of Microbe Secondary Metabolites Using OSMAC Strategy: A Literature Review. Front Microbiol 2019; 10:294. [PMID: 30863377 PMCID: PMC6399155 DOI: 10.3389/fmicb.2019.00294] [Citation(s) in RCA: 134] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 02/04/2019] [Indexed: 12/27/2022] Open
Abstract
Microbial secondary metabolites (MSMs) have played and continue to play a highly significant role in the drug discovery and development process. Genetically, MSM chemical structures are biologically synthesized by microbial gene clusters. Recently, however, the speed of new bioactive MSM discovery has been slowing down due to consistent employment of conventional cultivation and isolation procedure. In order to alleviate this challenge, a number of new approaches have been developed. The strategy of one strain many compounds (OSMAC) has been shown as a simple and powerful tool that can activate many silent biogenetic gene clusters in microorganisms to make more natural products. This review highlights important and successful examples using OSMAC approaches, which covers changing medium composition and cultivation status, co-cultivation with other strain(s), adding enzyme inhibitor(s) and MSM biosynthetic precursor(s). Available evidences had shown that variation of cultivation condition is the most effective way to produce more MSMs and facilitate the discovery of new therapeutic agents.
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Affiliation(s)
- Rui Pan
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Xuelian Bai
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Jianwei Chen
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Huawei Zhang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
| | - Hong Wang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, China
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21
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Abstract
Covering: January to December 2017This review covers the literature published in 2017 for marine natural products (MNPs), with 740 citations (723 for the period January to December 2017) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1490 in 477 papers for 2017), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included. Geographic distributions of MNPs at a phylogenetic level are reported.
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Affiliation(s)
- Anthony R Carroll
- School of Environment and Science, Griffith University, Gold Coast, Australia. and Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Brent R Copp
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Robert A Keyzers
- Centre for Biodiscovery, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
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22
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Andrade HFD, Araújo LCAD, Santos BSD, Paiva PMG, Napoleão TH, Correia MTDS, Oliveira MBMD, Lima GMDS, Ximenes RM, Silva TDD, Silva GRD, Silva MVD. Screening of endophytic fungi stored in a culture collection for taxol production. Braz J Microbiol 2018; 49 Suppl 1:59-63. [PMID: 30174203 PMCID: PMC6328807 DOI: 10.1016/j.bjm.2018.06.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/25/2018] [Accepted: 06/06/2018] [Indexed: 12/20/2022] Open
Abstract
In this work, four isolates of endophytic fungi (Alternaria alternata, Colletotrichum gloesporioides, Glomerella cingulata and Nigrospora sphaerica), deposited in the culture collection 'University Recife Mycologia' (URM) at the Universidade Federal de Pernambuco, were characterized for the genes ITS 1 and 4 (region 5.8 S) and evaluated for taxol production.
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Affiliation(s)
| | | | - Bruno Souza Dos Santos
- Universidade Federal de Pernambuco, Centro de Biociências, Departamento de Bioquímica, Recife, PE, Brazil
| | | | - Thiago Henrique Napoleão
- Universidade Federal de Pernambuco, Centro de Biociências, Departamento de Bioquímica, Recife, PE, Brazil
| | | | | | | | - Rafael Matos Ximenes
- Universidade Federal de Pernambuco, Centro de Biociências, Departamento de Antibióticos, Recife, PE, Brazil
| | | | - Girliane Regina da Silva
- Universidade Federal Rural de Pernambuco, Centro de Apoio à Pesquisa (CENAPESQ), Recife, PE, Brazil
| | - Márcia Vanusa da Silva
- Universidade Federal de Pernambuco, Centro de Biociências, Departamento de Bioquímica, Recife, PE, Brazil
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23
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Ancheeva E, Daletos G, Proksch P. Lead Compounds from Mangrove-Associated Microorganisms. Mar Drugs 2018; 16:md16090319. [PMID: 30205507 PMCID: PMC6165052 DOI: 10.3390/md16090319] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 08/22/2018] [Accepted: 08/29/2018] [Indexed: 01/30/2023] Open
Abstract
The mangrove ecosystem is considered as an attractive biodiversity hotspot that is intensively studied in the hope of discovering new useful chemical scaffolds, including those with potential medicinal application. In the past two decades, mangrove-derived microorganisms, along with mangrove plants, proved to be rich sources of bioactive secondary metabolites as exemplified by the constant rise in the number of publications, which suggests the great potential of this important ecological niche. The present review summarizes selected examples of bioactive compounds either from mangrove endophytes or from soil-derived mangrove fungi and bacteria, covering the literature from 2014 to March 2018. Accordingly, 163 natural products are described in this review, possessing a wide range of potent bioactivities, such as cytotoxic, antibacterial, antifungal, α-glucosidase inhibitory, protein tyrosine phosphatase B inhibitory, and antiviral activities, among others.
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Affiliation(s)
- Elena Ancheeva
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University, Universitaetsstrasse 1, 40225 Düsseldorf, Germany.
| | - Georgios Daletos
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University, Universitaetsstrasse 1, 40225 Düsseldorf, Germany.
| | - Peter Proksch
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich-Heine-University, Universitaetsstrasse 1, 40225 Düsseldorf, Germany.
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24
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Deshmukh SK, Gupta MK, Prakash V, Reddy MS. Mangrove-Associated Fungi: A Novel Source of Potential Anticancer Compounds. J Fungi (Basel) 2018; 4:jof4030101. [PMID: 30149584 PMCID: PMC6162443 DOI: 10.3390/jof4030101] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/14/2018] [Accepted: 08/21/2018] [Indexed: 02/06/2023] Open
Abstract
Cancer is the second leading cause of death worldwide, and the number of cases is increasing alarmingly every year. Current research focuses on the development of novel chemotherapeutic drugs derived from natural as well as synthetic sources. The abundance and diversity in natural resources offer tremendous potential for the discovery of novel molecules with unique mechanisms for cancer therapy. Mangrove-derived fungi are rich source of novel metabolites, comprising novel structure classes with diverse biological activities. Across the globe, coastal areas are primarily dominated by mangrove forests, which offer an intensely complex environment and species that mostly remain unexplored. In recent years, many structurally diverse compounds with unique skeletons have been identified from mangrove fungi and evaluated for their antiproliferative properties. These compounds may serve as lead molecules for the development of new anticancer drugs. Mangrove endophytes can be modulated using epigenetic means or culture optimization methods to improve the yield or to produce various similar analogs. The present review provides an insight into the bioactive metabolites from mangrove endophytes reported during the period from 2012 to 2018 (up to April, 2018) along with their cytotoxic properties, focusing on their chemical structures and mode of action, as indicated in the literature.
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Affiliation(s)
- Sunil K Deshmukh
- TERI-Deakin Nano Biotechnology Centre, The Energy and Resources Institute (TERI), Darbari Seth Block, IHC Complex, Lodhi Road, New Delhi 110003, India.
| | - Manish K Gupta
- TERI-Deakin Nano Biotechnology Centre, The Energy and Resources Institute (TERI), Darbari Seth Block, IHC Complex, Lodhi Road, New Delhi 110003, India.
| | - Ved Prakash
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Allahabad 211004, India.
| | - M Sudhakara Reddy
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Patiala, Punjab 147004, India.
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25
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Liu X, Wang W, Zhao Y, Lai D, Zhou L, Liu Z, Wang M. Total Synthesis and Structure Revision of Palmarumycin B 6. JOURNAL OF NATURAL PRODUCTS 2018; 81:1803-1809. [PMID: 30102534 DOI: 10.1021/acs.jnatprod.8b00258] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Palmarumycin B6 and its regioisomer were synthesized via 7- and 13-step routes using 2-chlorophenol and 4-chlorophenyl methyl ether as the starting materials in overall yields of 2.7% and 12%, respectively. Their structures were characterized by 1H and 13C NMR, HRESIMS, and X-ray diffraction data. The structure of palmarumycin B6 was revised as 6-chloropalmarumycin CP17. The bioassay results showed that the larvicidal activity of palmarumycin B6 with an LC50 value of 32.7 μM was significantly higher than that of its 8-chloro isomer, with an LC50 value of 227.3 μM.
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26
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Li SJ, Zhang X, Wang XH, Zhao CQ. Novel natural compounds from endophytic fungi with anticancer activity. Eur J Med Chem 2018; 156:316-343. [PMID: 30015071 DOI: 10.1016/j.ejmech.2018.07.015] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 07/02/2018] [Accepted: 07/06/2018] [Indexed: 11/30/2022]
Abstract
Plant endophytes are microorganisms that live in healthy plant tissues in part or all of their life history without causing obvious symptoms of infection in the host plants. Endophytes, a new type of microbial resource that can produce a variety of biological constituents, have great values for research and broad prospects for development. This article reviewed the research and development progress of endophytic fungi with cytotoxic activity between 2014 and 2017, including endophytic fungi sources, microbial taxonomy, compound classification and cytotoxic activity. The results showed that the 109 strains of endophytic fungi belong to 3 phyla, 7 classes and 50 genera. The secondary metabolites mainly contained alkaloids, terpenes, steroids, polyketides, quinones, isocoumarins, esters etc. The results of this study provide references for the development of new antitumor drugs and endophytes resources.
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Affiliation(s)
- Shou-Jie Li
- Beijing Key Laboratory of Gene Engineering Drugs & Biological Technology, College of Life Science, Beijing Normal University, Beijing, 100875, PR China
| | - Xuan Zhang
- Beijing Key Laboratory of Gene Engineering Drugs & Biological Technology, College of Life Science, Beijing Normal University, Beijing, 100875, PR China
| | - Xiang-Hua Wang
- Beijing Key Laboratory of Gene Engineering Drugs & Biological Technology, College of Life Science, Beijing Normal University, Beijing, 100875, PR China
| | - Chang-Qi Zhao
- Beijing Key Laboratory of Gene Engineering Drugs & Biological Technology, College of Life Science, Beijing Normal University, Beijing, 100875, PR China.
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