1
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Shi X, Li X, He X, Zhang D, Quan C, Xiu Z, Dong Y. Chemical Epigenetic Regulation Secondary Metabolites Derived from Aspergillus sydowii DL1045 with Inhibitory Activities for Protein Tyrosine Phosphatases. Molecules 2024; 29:670. [PMID: 38338416 PMCID: PMC10856041 DOI: 10.3390/molecules29030670] [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: 12/12/2023] [Revised: 01/29/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Protein tyrosine phosphatases (PTPs) are ubiquitous in living organisms and are promising drug targets for cancer, diabetes/obesity, and autoimmune disorders. In this study, a histone deacetylase inhibitor called suberoylanilide hydroxamic acid (SAHA) was added to a culture of marine fungi (Aspergillus sydowii DL1045) to identify potential drug candidates related to PTP inhibition. Then, the profile of the induced metabolites was characterized using an integrated metabolomics strategy. In total, 46% of the total SMs were regulated secondary metabolites (SMs), among which 20 newly biosynthesized metabolites (10% of the total SMs) were identified only in chemical epigenetic regulation (CER) broth. One was identified as a novel compound, and fourteen compounds were identified from Aspergillus sydowii first. SAHA derivatives were also biotransformed by A. sydowii DL1045, and five of these derivatives were identified. Based on the bioassay, some of the newly synthesized metabolites exhibited inhibitory effects on PTPs. The novel compound sydowimide A (A11) inhibited Src homology region 2 domain-containing phosphatase-1 (SHP1), T-cell protein tyrosine phosphatase (TCPTP) and leukocyte common antigen (CD45), with IC50 values of 1.5, 2.4 and 18.83 μM, respectively. Diorcinol (A3) displayed the strongest inhibitory effect on SHP1, with an IC50 value of 0.96 μM. The structure-activity relationship analysis and docking studies of A3 analogs indicated that the substitution of the carboxyl group reduced the activity of A3. Research has demonstrated that CER positively impacts changes in the secondary metabolic patterns of A. sydowii DL1045. The compounds produced through this approach will provide valuable insights for the creation and advancement of novel drug candidates related to PTP inhibition.
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Affiliation(s)
- Xuan Shi
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; (X.S.); (X.L.); (X.H.); (D.Z.); (Z.X.)
| | - Xia Li
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; (X.S.); (X.L.); (X.H.); (D.Z.); (Z.X.)
| | - Xiaoshi He
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; (X.S.); (X.L.); (X.H.); (D.Z.); (Z.X.)
| | - Danyang Zhang
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; (X.S.); (X.L.); (X.H.); (D.Z.); (Z.X.)
| | - Chunshan Quan
- College of Life Science, Dalian Minzu University, Dalian 116600, China;
| | - Zhilong Xiu
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; (X.S.); (X.L.); (X.H.); (D.Z.); (Z.X.)
| | - Yuesheng Dong
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; (X.S.); (X.L.); (X.H.); (D.Z.); (Z.X.)
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2
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Zhgun AA. Fungal BGCs for Production of Secondary Metabolites: Main Types, Central Roles in Strain Improvement, and Regulation According to the Piano Principle. Int J Mol Sci 2023; 24:11184. [PMID: 37446362 PMCID: PMC10342363 DOI: 10.3390/ijms241311184] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 06/28/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Filamentous fungi are one of the most important producers of secondary metabolites. Some of them can have a toxic effect on the human body, leading to diseases. On the other hand, they are widely used as pharmaceutically significant drugs, such as antibiotics, statins, and immunosuppressants. A single fungus species in response to various signals can produce 100 or more secondary metabolites. Such signaling is possible due to the coordinated regulation of several dozen biosynthetic gene clusters (BGCs), which are mosaically localized in different regions of fungal chromosomes. Their regulation includes several levels, from pathway-specific regulators, whose genes are localized inside BGCs, to global regulators of the cell (taking into account changes in pH, carbon consumption, etc.) and global regulators of secondary metabolism (affecting epigenetic changes driven by velvet family proteins, LaeA, etc.). In addition, various low-molecular-weight substances can have a mediating effect on such regulatory processes. This review is devoted to a critical analysis of the available data on the "turning on" and "off" of the biosynthesis of secondary metabolites in response to signals in filamentous fungi. To describe the ongoing processes, the model of "piano regulation" is proposed, whereby pressing a certain key (signal) leads to the extraction of a certain sound from the "musical instrument of the fungus cell", which is expressed in the production of a specific secondary metabolite.
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Affiliation(s)
- Alexander A Zhgun
- Group of Fungal Genetic Engineering, Federal Research Center "Fundamentals of Biotechnology", Russian Academy of Sciences, Leninsky Prosp. 33-2, 119071 Moscow, Russia
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3
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Shi R, Wang X, Zhang X, Chen S, Wang ZL, Qi H, Xu XM. Acid/Base-Steered Cascade Cyclization: An Efficient One-Pot Access to Diverse Isobenzofuranone and Isoindolobenzoxazinone Derivatives. Molecules 2023; 28:molecules28031443. [PMID: 36771107 PMCID: PMC9921644 DOI: 10.3390/molecules28031443] [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: 01/02/2023] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
We herein report the acid/base-steered two distinct reaction pathways of 2-acylbenzoic acids with isatoic anhydrides. In the presence of Na2CO3, the cascade process consists of the cyclization of 2-acetylbenzoic acid and nucleophilic ring-opening reaction of isatoic anhydride to furnish isobenzofuranone derivatives with high efficiency. However, p-toluenesulfonic acid can promote the product isobenzofuranones to undergo sequential intramolecular rearrangment, nucleophilic addition and cyclization reaction to produce diverse isoindolobenzoxazinones in good yields. The synthetic utility of this method was further demonstrated by the gram-scale preparation of the desired products and the facile transformations of the resulting products.
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Affiliation(s)
- Ran Shi
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xiangmin Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
- Correspondence: (X.W.); (Z.-L.W.); (X.-M.X.)
| | - Xuesi Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Sen Chen
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Zu-Li Wang
- National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
- Correspondence: (X.W.); (Z.-L.W.); (X.-M.X.)
| | - Huijing Qi
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xin-Ming Xu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
- Correspondence: (X.W.); (Z.-L.W.); (X.-M.X.)
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4
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Miyano R, Matsuo H, Mokudai T, Higo M, Nonaka K, Niwano Y, Shiomi K, Takahashi Y, Ōmura S, Nakashima T. New nitrogen-compounds, penicidones E and F, produced by the fungal strain Oidiodendron sp. FKI-7498. Biosci Biotechnol Biochem 2022; 87:38-44. [PMID: 36396341 DOI: 10.1093/bbb/zbac184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 10/26/2022] [Indexed: 11/19/2022]
Abstract
The nitrogen rule in mass spectrometry was used to search for new nitrogen-compounds from microbial metabolites. During this program, two new nitrogen-containing compounds, penicidones E and F, were discovered from the filamentous fungal strain FKI-7498, which was isolated from soil collected in Tokushima, Japan, and identified as Oidiodendron sp. by sequence analysis of the internal transcribed spacer region, including 5.8S ribosomal RNA. The structures of penicidones E and F were determined by mass spectrometry, nuclear magnetic resonance spectroscopy, and chemical modification analyses. These analyses revealed that penicidones E and F have a core structure of 3,5-dihydroxy-2-(4-pyridone-3-carbonyl)benzoic acid. Penicidone E exhibited hydroxyl radical scavenging activity.
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Affiliation(s)
- Rei Miyano
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan
| | - Hirotaka Matsuo
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan.,Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, Japan
| | - Takayuki Mokudai
- Graduate School of Dentistry, Tohoku University, 4-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, Japan.,Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi
| | - Mayuka Higo
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan
| | - Kenichi Nonaka
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan
| | - Yoshimi Niwano
- Graduate School of Dentistry, Tohoku University, 4-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, Japan.,Faculty of Nursing, Shumei University, 1-1 Daigaku-Cho, Yachiyo, Chiba, Japan
| | - Kazuro Shiomi
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan
| | - Yōko Takahashi
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan
| | - Satoshi Ōmura
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan
| | - Takuji Nakashima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, Japan.,Research Organization for Nano and Life Innovation, Waseda University, 513 Waseda tsurumakicho, Shinjuku-ku, Tokyo, Japan
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5
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Weng W, Jiang S, Sun C, Pan X, Xian L, Lu X, Zhang C. Cytotoxic secondary metabolites isolated from Penicillium sp. YT2019-3321, an endophytic fungus derived from Lonicera Japonica. Front Microbiol 2022; 13:1099592. [PMID: 36583050 PMCID: PMC9792606 DOI: 10.3389/fmicb.2022.1099592] [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: 11/16/2022] [Accepted: 11/29/2022] [Indexed: 12/15/2022] Open
Abstract
Introduction Endophytic fungi associated with medicinal plants have proven to possess a high potential to produce structurally diverse metabolites, some of which are valuable for medicinal applications. In this study, Penicillium sp. YT2019-3321, an endophytic fungus derived from traditional Chinese medicine Lonicera japonica, was chemically studied. Methods The chemical structures of the isolated compounds were established by a correlative interpretation of HRESIMS and NMR spectroscopic data. The optical resolution of (±)-1 by chiral HPLC yielded individual enantiomers (+)-1 and (-)-1, and their stereochemistry were solved by X-ray diffraction crystallography, respectively. Results and discussion Eight structurally diversified secondary metabolites, including two previously unreported polyketides, named (±)-chrysoalide B (1) and penicidone E (2), were isolated and identified from Penicillium sp. YT2019-3321. Compound 2 possessed the γ-pyridone nucleus, which is rarely found in natural products. Cytotoxic assay revealed that the new compound 2 demonstrated a dose-dependent cytotoxicity against the human pancreatic tumor cells PATU8988T with the IC50 value of 11.4 μM. Further studies indicated that 2 significantly induced apoptosis of PATU8988T cell lines, characterized by the morphologies abnormity, the reduction of cell number, the upregulation of proportion of apoptotic cells, and the ratio of Bcl-2 to Bax. Our study demonstrates that fungal secondary metabolites may have important significance in the discovery of drug leads.
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Affiliation(s)
- Wenya Weng
- Department of Scientific Research, The Third Affiliated Hospital of Wenzhou Medical University, Zhejiang, China,Department of Endocrinology, Ruian People’s Hospital, Zhejiang, China
| | - Shicui Jiang
- Department of Scientific Research, The Third Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Chuchu Sun
- Department of Scientific Research, The Third Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Xiaofu Pan
- Department of Scientific Research, The Third Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Li Xian
- College of Life Sciences, Ludong University, Yantai, China
| | - Xuemian Lu
- Department of Scientific Research, The Third Affiliated Hospital of Wenzhou Medical University, Zhejiang, China,Department of Endocrinology, Ruian People’s Hospital, Zhejiang, China,*Correspondence: Xuemian Lu,
| | - Chi Zhang
- Department of Scientific Research, The Third Affiliated Hospital of Wenzhou Medical University, Zhejiang, China,Chi Zhang,
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6
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Salvatore MM, DellaGreca M, Andolfi A, Nicoletti R. New Insights into Chemical and Biological Properties of Funicone-like Compounds. Toxins (Basel) 2022; 14:466. [PMID: 35878204 PMCID: PMC9320429 DOI: 10.3390/toxins14070466] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 02/04/2023] Open
Abstract
Funicone-like compounds are a homogeneous group of polyketides that, so far, have only been reported as fungal secondary metabolites. In particular, species in the genus Talaromyces seem to be the most typical producers of this group of secondary metabolites. The molecular structure of funicone, the archetype of these products, is characterized by a γ-pyrone ring linked through a ketone group to a α-resorcylic acid nucleus. This review provides an update on the current knowledge on the chemistry of funicone-like compounds, with special emphasis on their classification, occurrence, and diverse biological activities. In addition, their potential relevance as mycotoxins is discussed.
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Affiliation(s)
- Maria Michela Salvatore
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (M.M.S.); (M.DG.)
- Institute for Sustainable Plant Protection, National Research Council, 80055 Portici, Italy
| | - Marina DellaGreca
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (M.M.S.); (M.DG.)
| | - Anna Andolfi
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (M.M.S.); (M.DG.)
- BAT Center—Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples Federico II, 80055 Portici, Italy
| | - Rosario Nicoletti
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy;
- Council for Agricultural Research and Economics, Research Center for Olive, Fruit, and Citrus Crops, 81100 Caserta, Italy
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7
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Daley SK, Cordell GA. Biologically Significant and Recently Isolated Alkaloids from Endophytic Fungi. JOURNAL OF NATURAL PRODUCTS 2021; 84:871-897. [PMID: 33534564 DOI: 10.1021/acs.jnatprod.0c01195] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A selection of the established and recently characterized alkaloids from the exploration of plant- and some marine-associated endophytic fungi is reviewed, with reference to alkaloids of biological significance.
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Affiliation(s)
| | - Geoffrey A Cordell
- Natural Products Inc., Evanston, Illinois 60202, United States
- Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, Florida 32610, United States
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8
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Abo Nouh FA, Gezaf SA, Abdel-Azeem AM. Recent Advances in Fungal Antimicrobial Molecules. Fungal Biol 2021. [DOI: 10.1007/978-3-030-85603-8_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 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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Fungal Secondary Metabolites: Current Research, Commercial Aspects, and Applications. Fungal Biol 2021. [DOI: 10.1007/978-3-030-85603-8_8] [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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10
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Baranova AA, Alferova VA, Korshun VA, Tyurin AP. Antibiotics from Extremophilic Micromycetes. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2020; 46:903-971. [PMID: 33390684 PMCID: PMC7768999 DOI: 10.1134/s1068162020060023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 12/03/2022]
Abstract
Extremophilic microorganisms, which are capable of functioning normally at extremely high or low temperatures, pressure, and in other environmental conditions, have been in the focus of microbiologists' attention for several decades due to the biotechnological potential of enzymes inherent in extremophiles. These enzymes (also called extremozymes) are used in the production of food and detergents and other industries. At the same time, the inhabitants of extreme econiches remained almost unexplored for a long time in terms of the chemistry of natural compounds. In recent years, the emergence of new antibiotic-resistant strains of pathogens, which affect humans and animals has become a global problem. The problem is compounded by a strong slowdown in the development of new antibiotics. In search of new active substances and scaffolds for medical chemistry, researchers turn to unexplored natural sources. In recent years, there has been a sharp increase in the number of studies on secondary metabolites produced by extremophiles. From the discovery of penicillin to the present day, micromycetes, along with actinobacteria, are one of the most productive sources of antibiotic compounds for medicine and agriculture. Many authors consider extremophilic micromycetes as a promising source of small molecules with an unusual mechanism of action or significant structural novelty. This review summarizes the latest (for 2018-2019) experimental data on antibiotic compounds, which are produced by extremophilic micromycetes with various types of adaptation. Active metabolites are classified by the type of structure and biosynthetic origin. The data on the biological activity of the isolated metabolites are summarized.
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Affiliation(s)
- A. A. Baranova
- Gause Institute of New Antibiotics, 119021 Moscow, Russia
| | - V. A. Alferova
- Gause Institute of New Antibiotics, 119021 Moscow, Russia
- National Research University, Higher School of Economics, 101000 Moscow, Russia
| | - V. A. Korshun
- Gause Institute of New Antibiotics, 119021 Moscow, Russia
- Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- National Research University, Higher School of Economics, 101000 Moscow, Russia
| | - A. P. Tyurin
- Gause Institute of New Antibiotics, 119021 Moscow, Russia
- National Research University, Higher School of Economics, 101000 Moscow, Russia
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11
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Murakami S, Hayashi N, Inomata T, Kato H, Hitora Y, Tsukamoto S. Induction of secondary metabolite production by fungal co-culture of Talaromyces pinophilus and Paraphaeosphaeria sp. J Nat Med 2020; 74:545-549. [PMID: 32236853 DOI: 10.1007/s11418-020-01400-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 03/18/2020] [Indexed: 10/24/2022]
Abstract
Fungal co-culture is a strategy to induce the production of secondary metabolites by activating cryptic genes. We discovered the production of a new compound, talarodone A (1), along with five known compounds 2-6 in co-culture of Talaromyces pinophilus and Paraphaeosphaeria sp. isolated from soil collected in Miyazaki Prefecture, Japan. Among them, the productions of penicidones C (2) and D (3) were enhanced 27- and sixfold, respectively, by the co-culture. The structure of 3 should be represented as a γ-pyridol form with the reported chemical shifts, but not as a γ-pyridone form, based on DFT calculation.
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Affiliation(s)
- Shunya Murakami
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Nozomu Hayashi
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Teruyo Inomata
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Hikaru Kato
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862-0973, Japan.
| | - Yuki Hitora
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Sachiko Tsukamoto
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862-0973, Japan.
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Endophytic Penicillium species and their agricultural, biotechnological, and pharmaceutical applications. 3 Biotech 2020; 10:107. [PMID: 32095421 DOI: 10.1007/s13205-020-2081-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 01/20/2020] [Indexed: 12/18/2022] Open
Abstract
Penicillium genus constituted by over 200 species is one of the largest and fascinating groups of fungi, particularly well established as a source of antibiotics. Endophytic Penicillium has been reported to colonize their ecological niches and protect their host plant against multiples stresses by exhibiting diverse biological functions that can be exploited for countless applications including agricultural, biotechnological, and pharmaceutical. Over the past 2 decades, endophytic Penicillium species have been investigated beyond their antibiotic potential and numerous applications have been reported. We comprehensively summarized in this review available data (2000-2019) regarding bioactive compounds isolated from endophytic Penicillium species as well as the application of these fungi in multiple agricultural and biotechnological processes. This review has shown that a very large number (131) of endophytes from this genus have been investigated so far and more than 280 compounds exhibiting antimicrobial, anticancer, antiviral, antioxidants, anti-inflammatory, antiparasitics, immunosuppressants, antidiabetic, anti-obesity, antifibrotic, neuroprotective effects, and insecticidal and biocontrol activities have been reported. Moreover, several endophytic Penicillium spp. have been characterized as biocatalysts, plant growth promoters, phytoremediators, and enzyme producers. We hope that this review summarizes the status of research on this genus and will stimulate further investigations.
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13
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Jia Q, Qu J, Mu H, Sun H, Wu C. Foliar endophytic fungi: diversity in species and functions in forest ecosystems. Symbiosis 2020. [DOI: 10.1007/s13199-019-00663-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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14
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Chemical Composition and Biological Activities of Metabolites from the Marine Fungi Penicillium sp. Isolated from Sediments of Co To Island, Vietnam. Molecules 2019; 24:molecules24213830. [PMID: 31652901 PMCID: PMC6864758 DOI: 10.3390/molecules24213830] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/17/2019] [Accepted: 10/23/2019] [Indexed: 11/17/2022] Open
Abstract
Marine microorganisms are an invaluable source of novel active secondary metabolites possessing various biological activities. In this study, the extraction and isolation of the marine sediment Penicillium species collected in Vietnam yielded ten secondary metabolites, including sporogen AO-1 (1), 3-indolecarbaldehyde (2), 2-[(5-methyl-1,4-dioxan-2-yl)methoxy]ethanol (3), 2-[(2R-hydroxypropanoyl)amino]benzamide (4), 4-hydroxybenzandehyde (5), chrysogine (6), 3-acetyl-4-hydroxycinnoline (7), acid 1H-indole-3-acetic (8), cyclo (Tyr-Trp) (9), and 2',3'-dihydrosorbicillin (10). Their structures were identified by the analysis of 1D and 2D NMR data. Among the isolated compounds, 2-[(5-methyl-1,4-dioxan-2-yl)methoxy]ethanol (3) showed a strong inhibitory effect against Enterococcus faecalis with a minimum inhibitory concentration value of 32 µg/mL. Both 2-[(2R-hydroxypropanoyl)amino]benzamide (4) and 4-hydroxybenzandehyde (5) selectively inhibited E. coli with minimum inhibitory concentration values of 16 and 8 µg/mL, respectively. 2',3'-Dihydrosorbicillin (10) potentially inhibited α-glucosidase activity at a concentration of 2.0 mM (66.31%).
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15
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Secondary metabolites from the mangrove sediment-derived fungus Penicillium pinophilum SCAU037. Fitoterapia 2019; 136:104177. [DOI: 10.1016/j.fitote.2019.104177] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/13/2019] [Accepted: 05/17/2019] [Indexed: 10/26/2022]
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16
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Zehra B, Ahmed A, Sarwar R, Khan A, Farooq U, Abid Ali S, Al-Harrasi A. Apoptotic and antimetastatic activities of betulin isolated from Quercus incana against non-small cell lung cancer cells. Cancer Manag Res 2019; 11:1667-1683. [PMID: 30863176 PMCID: PMC6388989 DOI: 10.2147/cmar.s186956] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background Globally, the prevalence and mortality rates of lung cancer have been escalated with the increasing trend of tobacco smoking. The toxicity and irresponsive nature of the available drugs for lung cancer treatment demands an alternative approach. Methods In this study, four known compounds namely, cirsimaritin (4′,5, -dihydroxy-6,7-di-methoxyflavone) (1), eupatorin (5,3′-dihydroxy-6,7,4′-trimethoxyflavone) (2), betulin (Lup-20 (29)-ene-3, 28-diol) (3), and β-amyrin acetate (12-Oleanen-3yl acetate) (4) have been isolated from the leaves extract of Quercus incana. Preliminary screening of these natural compounds (1–4) was performed against non-small cell lung carcinoma (NCI-H460) and normal mouse fibroblast (NIH-3T3) cell lines. Results The compounds were found to be antiproliferative against cancer cells with wide therapeutic index in comparison to the normal cells. Effects of betulin (3) on cell migration, invasion, apoptosis, and expression of important apoptosis- and metastasis-related markers were observed at different concentrations. The results showed significant dose-dependent induction of apoptosis after the treatment with betulin (3) followed by increased expression of the caspases family (ie, caspase-3, -6, and -9), proapoptotic genes (BAX and BAK), and inhibiting anti-apoptotic genes (BCL-2L1 and p53). Furthermore, wound healing and transwell invasion assays suggested that betulin (3) could also regulate metastasis by inhibiting MMP-2/-9. Osteopontin, a central regulator of apoptosis and metastasis was also inhibited in a dose-dependent manner. Conclusion The present findings suggest that betulin (3) can be an attractive chemotherapeutic target for treating resistant lung cancers.
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Affiliation(s)
- Binte Zehra
- Dr Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Ayaz Ahmed
- Dr Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Rizwana Sarwar
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus, Abbottabad, Pakistan
| | - Ajmal Khan
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Sultanate of Oman,
| | - Umar Farooq
- Department of Chemistry, COMSATS University Islamabad Abbottabad Campus, Abbottabad, Pakistan
| | - Syed Abid Ali
- Hussain Ebrahim Jamal Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan,
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Sultanate of Oman,
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Chung PY, Lam PL, Zhou YY, Gasparello J, Finotti A, Chilin A, Marzaro G, Gambari R, Bian ZX, Kwok WM, Wong WY, Wang X, Lam AKY, Chan ASC, Li X, Ma JYW, Chui CH, Lam KH, Tang JCO. Targeting DNA Binding for NF-κB as an Anticancer Approach in Hepatocellular Carcinoma. Cells 2018; 7:cells7100177. [PMID: 30360426 PMCID: PMC6209864 DOI: 10.3390/cells7100177] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/18/2018] [Accepted: 10/19/2018] [Indexed: 12/14/2022] Open
Abstract
Quinoline core has been shown to possess a promising role in the development of anticancer agents. However, the correlation between its broad spectrum of bioactivity and the underlying mechanism of actions is poorly understood. The present study, with the use of bioinformatics approaches, reported a series of designed molecules which integrated quinoline core and sulfonyl moiety, with the objective of evaluating the substituent and linker effects on anticancer activities and associated mechanistic targets. We identified potent compounds (1h, 2h, 5 and 8) exhibiting significant anticancer effects towards liver cancer cells (Hep3B) with the 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) relative values of cytotoxicity below 0.40, a value in the range of doxorubicin positive control with the value of 0.12. Bulky substituents and the presence of bromine atom, as well as the presence of sulfonamide linkage, are likely the favorable structural components for molecules exerting a strong anticancer effect. To the best of our knowledge, our findings obtained from chemical synthesis, in vitro cytotoxicity, bioinformatics-based molecular docking analysis (similarity ensemble approach, SEA),and electrophoretic mobility shift assay provided the first evidence in correlation to the anticancer activities of the selected compound 5 with the modulation on the binding of transcription factor NF-κB to its target DNA. Accordingly, compound 5 represented a lead structure for the development of quinoline-based NF-κB inhibitors and this work added novel information on the understanding of the mechanism of action for bioactive sulfonyl-containing quinoline compounds against hepatocellular carcinoma.
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Affiliation(s)
- Po-Yee Chung
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Pik-Ling Lam
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Yuan-Yuan Zhou
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Jessica Gasparello
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy.
| | - Alessia Finotti
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy.
| | - Adriana Chilin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35122 Padova, Italy.
| | - Giovanni Marzaro
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35122 Padova, Italy.
| | - Roberto Gambari
- Department of Life Sciences and Biotechnology, University of Ferrara, 44121 Ferrara, Italy.
| | - Zhao-Xiang Bian
- Clinical Division, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China.
| | - Wai-Ming Kwok
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Wai-Yeung Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Xi Wang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Alfred King-Yin Lam
- Griffith Medical School, Griffith University, Gold Coast, QLD 4222, Australia.
| | - Albert Sun-Chi Chan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Xingshu Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | | | - Chung-Hin Chui
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Kim-Hung Lam
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Johnny Cheuk-On Tang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
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Huang H, Wang Y, Zong H, Song L. Catalytic asymmetric 1,2-Addition/Lactonization tandem reactions for the syntheses of chiral 3-Substituted phthalides using organozinc reagents. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4643] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Huayin Huang
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Yabai Wang
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Hua Zong
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
| | - Ling Song
- The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou Fujian 350002 China
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Duskaev GK, Rakhmatullin SG, Kazachkova NM, Sheida YV, Mikolaychik IN, Morozova LA, Galiev BH. Effect of the combined action of Quercus cortex extract and probiotic substances on the immunity and productivity of broiler chickens. Vet World 2018; 11:1416-1422. [PMID: 30532495 PMCID: PMC6247875 DOI: 10.14202/vetworld.2018.1416-1422] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 09/07/2018] [Indexed: 01/19/2023] Open
Abstract
Aim: This study was designed to investigate the synergistic effect of the combined action of probiotic bacterial strains (Bifidobacterium adolescentis and Lactobacillus acidophilus) and Quercus cortex extract as biologically active substances in the feed on the immunity and productivity of Gallus gallus domesticus. Materials and Methods: For the experiment, 120 7-day-old broiler chickens were selected (4 groups, n=30, 3 replicates with 10 birds in each group). The groups were as follows: The reference group - basic diet (BD); experimental Group I - BD + Q. cortex extract (Q. cortex), 2.5 ml/kg of body weight; experimental Group II - BD + probiotic preparation based on B. adolescentis, 80.0 million colony-forming units (CFU), and L. acidophilus, 1.0 million CFU (dosage in accordance with the recommendations of the manufacturer); and experimental Group III - BD + probiotic + extract of Q. cortex. The following methods of study were used: Chemiluminescence and biochemical and hematological analysis. Results: The results of the experiment showed a slight decrease in the level of leukocytes in Groups II (p≤0.05) and III, and of hemoglobin in Group III (p≤0.05), compared to the reference group. The level of alanine aminotransferase and aspartate aminotransferase in Group II was higher than both the reference group (p≤0.05) and the other groups. Introduction of Q. cortex extract into the diet increased the level of triglycerides (p≤0.05) and urea in the blood serum. The combined use of probiotic preparations and the extract resulted in an increase in the level of iron in the blood serum by 78.1% (p≤0.05) in Group III. An increase in indicators of the antioxidant system (catalase increased in Group I by 27.2% (p≤0.05) and by 3.0–12.7% in other groups; superoxide dismutase increased by 3.0–13.2%) and nonspecific immunity (β-lysine increased by 8.8–16.0%) was noted. Introduction of the extract and probiotic preparation into the diet contributed to increasing the live weight of chickens at the age of 15 days by 5.9 and 7.4%, respectively (p≤0.05). In experimental Group II, this trend continued, and by the end of the period, the weight of animals exceeded that of their peers in other groups by 0.7-7.0%. Given the high preservation rate of poultry in the II and III Groups, and the low feed consumption per 1 kg of live weight gain (by 3.1–6.7%), the efficiency of growth was higher than in the reference group. Conclusion: Thus, the combined use of probiotic strains of bacteria and Q. cortex extract helped to increase the antioxidant activity of the organism and antimicrobial components of blood plasma compared with broiler chickens with similar growth rates but without the supplementation of this combination.
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Affiliation(s)
- G K Duskaev
- Department for Feeding Agricultural Animals and Fodder Technology, Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg - 460 000, Russia
| | - S G Rakhmatullin
- Department for Feeding Agricultural Animals and Fodder Technology, Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg - 460 000, Russia
| | - N M Kazachkova
- Department for Feeding Agricultural Animals and Fodder Technology, Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg - 460 000, Russia
| | - Y V Sheida
- Institute of Bioelements, Orenburg State University, Orenburg, 460018, Russia
| | - I N Mikolaychik
- Kurgan State Agriculture Academy, Lesnikovo, Ketovsky, Kurgan Region, 641300, Russia
| | - L A Morozova
- Kurgan State Agriculture Academy, Lesnikovo, Ketovsky, Kurgan Region, 641300, Russia
| | - B H Galiev
- Department for Feeding Agricultural Animals and Fodder Technology, Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg - 460 000, Russia
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21
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Phthalides: Distribution in Nature, Chemical Reactivity, Synthesis, and Biological Activity. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 104 2017; 104:127-246. [DOI: 10.1007/978-3-319-45618-8_2] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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22
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Antimicrobial metabolites from the plant endophytic fungus Penicillium sp. Fitoterapia 2016; 116:72-76. [PMID: 27876600 DOI: 10.1016/j.fitote.2016.11.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 11/09/2016] [Accepted: 11/10/2016] [Indexed: 01/09/2023]
Abstract
Five rare dichloro aromatic polyketides (1-5) were obtained from an endophytic fungus Penicillium sp., along with five known metabolites (6-10). Their structures were elucidated by extensive spectroscopic analysis, Mosher methods, as well as [Rh2(OCOCF3)4]-induced electronic circular dichroism (ECD) experiments. Compounds 2-4 and 6 structurally involved acyclic 1.3-diols, the uneasy configuration determinations of which were well carried out by double-derivation NMR methods. Compounds 1-10 were evaluated for their antibacterial and antifungal activities against five strains of human pathogenic microorganisms. Helvolic acid (7) showed potent inhibitory effects against Staphylococcus aureus and Pseudomonas aeruginosa with MIC (minimum inhibitory concentration) values of 5.8 and 4.6μg/mL, respectively.
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23
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Zhou H, Li L, Wu C, Kurtán T, Mándi A, Liu Y, Gu Q, Zhu T, Guo P, Li D. Penipyridones A-F, Pyridone Alkaloids from Penicillium funiculosum. JOURNAL OF NATURAL PRODUCTS 2016; 79:1783-1790. [PMID: 27359163 DOI: 10.1021/acs.jnatprod.6b00218] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Six new pyridone alkaloids, named penipyridones A-F (1-6), were isolated from the fermentation broth of an Antarctic moss-derived fungus, Penicillium funiculosum GWT2-24. Their structures were elucidated from extensive NMR and MS data. Although they possess the same major chromophore and some of them presented almost mirror ECD spectra, their absolute configurations were found to be uniformly S, as evidenced by X-ray single-crystal diffraction analysis, stereocontrolled total synthesis, and chemical conversions. TDDFT-ECD calculations of compounds 3 and 6 revealed that subtle conformational changes are responsible for the significantly different ECD curves. None of the compounds were cytotoxic (IC50 > 50 μM), while compounds 1, 2, 5, and 7 elicited lipid-lowering activity in HepG2 hepatocytes.
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Affiliation(s)
- Haibo Zhou
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Liyuan Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Chongming Wu
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College , Beijing 100193, People's Republic of China
| | - Tibor Kurtán
- Department of Organic Chemistry, University of Debrecen , POB 20, 4010 Debrecen, Hungary
| | - Attila Mándi
- Department of Organic Chemistry, University of Debrecen , POB 20, 4010 Debrecen, Hungary
| | - Yankai Liu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Qianqun Gu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Tianjiao Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
| | - Peng Guo
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College , Beijing 100193, People's Republic of China
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao 266003, People's Republic of China
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Franca EF, Guilardi S, Paixão DA, Teixeira RR, Pereira WL, Ellena JA. Centrosymmetric resonance-assisted intermolecular hydrogen bonding chains in the enol form of β-diketone: Crystal structure and theoretical study. J Mol Graph Model 2016; 68:106-113. [PMID: 27410224 DOI: 10.1016/j.jmgm.2016.06.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 06/08/2016] [Accepted: 06/09/2016] [Indexed: 11/15/2022]
Abstract
Isobenzofuran-1(3H)-ones (phtalides) are heterocycles that present a benzene ring fused to a γ-lactone functionality. This structural motif is found in several natural and synthetic compounds that present relevant biological activities. In the present investigation, the 3-(2-hydroxy-4,4-dimethyl-6-oxocyclohexen-1-yl)isobenzofuran-1(3H)-one was characterized by single-crystal X-ray analysis. In the crystal structure, there are two molecules per asymmetric unit. One of them exhibits resonance assisted hydrogen bonds (RAHBs). Semi-empirical and DFT calculations were performed to obtain electronic structure and π-delocalization parameters, in order to better understand the energy stabilization of RAHBs in the crystal packing of the studied molecule. The structural parameters showed good agreement between theoretical and experimental data. The theoretical investigation revealed that the RAHBs stabilization energy is directly related to the electronic delocalization of the enol form fragment. In addition, RAHBs significantly affected the HOMO and charge distribution around the conjugated system.
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Affiliation(s)
- Eduardo F Franca
- Instituto de Química, Universidade Federal de Uberlândia, 38.400-902, Uberlândia, MG, Brazil.
| | - Silvana Guilardi
- Instituto de Química, Universidade Federal de Uberlândia, 38.400-902, Uberlândia, MG, Brazil
| | - Drielly A Paixão
- Instituto de Química, Universidade Federal de Uberlândia, 38.400-902, Uberlândia, MG, Brazil
| | - Róbson R Teixeira
- Departamento de Química, Universidade Federal de Viçosa, 36.570-900, Viçosa, MG, Brazil.
| | - Wagner L Pereira
- Departamento de Química, Universidade Federal de Viçosa, 36.570-900, Viçosa, MG, Brazil
| | - Javier A Ellena
- Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, SP, Brazil
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Pires DAT, Pereira WL, Teixeira RR, Figueroa-Villar JD, Nascimento CJD. Nuclear Magnetic Resonance (NMR), Infrared (IR) and Mass Spectrometry (MS) study of keto-enol tautomerism of isobenzofuran-1(3H)-one derivatives. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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da Silva Maia AF, Siqueira RP, de Oliveira FM, Ferreira JG, da Silva SF, Caiuby CAD, de Oliveira LL, de Paula SO, Souza RAC, Guilardi S, Bressan GC, Teixeira RR. Synthesis, molecular properties prediction and cytotoxic screening of 3-(2-aryl-2-oxoethyl)isobenzofuran-1(3 H )-ones. Bioorg Med Chem Lett 2016; 26:2810-2816. [DOI: 10.1016/j.bmcl.2016.04.065] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/21/2016] [Accepted: 04/22/2016] [Indexed: 11/26/2022]
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27
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Kajula M, Ward JM, Turpeinen A, Tejesvi MV, Hokkanen J, Tolonen A, Häkkänen H, Picart P, Ihalainen J, Sahl HG, Pirttilä AM, Mattila S. Bridged Epipolythiodiketopiperazines from Penicillium raciborskii, an Endophytic Fungus of Rhododendron tomentosum Harmaja. JOURNAL OF NATURAL PRODUCTS 2016; 79:685-690. [PMID: 27057690 DOI: 10.1021/np500822k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Three new epithiodiketopiperazine natural products [outovirin A (1), outovirin B (2), and outovirin C (3)] resembling the antifungal natural product gliovirin have been identified in extracts of Penicillium raciborskii, an endophytic fungus isolated from Rhododendron tomentosum. The compounds are unusual for their class in that they possess sulfide bridges between α- and β-carbons rather than the typical α-α bridging. To our knowledge, outovirin A represents the first reported naturally produced epimonothiodiketopiperazine, and antifungal outovirin C is the first reported trisulfide gliovirin-like compound. This report describes the identification and structural elucidation of the compounds by LC-MS/MS and NMR.
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Affiliation(s)
- Marena Kajula
- Admescope Ltd. , Typpitie 1, Oulu, Finland , FIN-90620
| | | | | | | | - Juho Hokkanen
- Admescope Ltd. , Typpitie 1, Oulu, Finland , FIN-90620
| | - Ari Tolonen
- Admescope Ltd. , Typpitie 1, Oulu, Finland , FIN-90620
| | - Heikki Häkkänen
- Nanoscience Center, Department of Biological and Environmental Science, University of Jyväskylä , P.O. Box 35, Jyväskylä, Finland , FIN-40014
| | - Pere Picart
- Department of Pharmaceutical Microbiology, Institute for Medical Microbiology and Immunology , Meckenheimer Allee 168, 53115 Bonn, Germany
| | - Janne Ihalainen
- Nanoscience Center, Department of Biological and Environmental Science, University of Jyväskylä , P.O. Box 35, Jyväskylä, Finland , FIN-40014
| | - Hans-Georg Sahl
- Department of Pharmaceutical Microbiology, Institute for Medical Microbiology and Immunology , Meckenheimer Allee 168, 53115 Bonn, Germany
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Sarwar R, Farooq U, Khan A, Naz S, Khan S, Khan A, Rauf A, Bahadar H, Uddin R. Evaluation of Antioxidant, Free Radical Scavenging, and Antimicrobial Activity of Quercus incana Roxb. Front Pharmacol 2015; 6:277. [PMID: 26635607 PMCID: PMC4655348 DOI: 10.3389/fphar.2015.00277] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 11/03/2015] [Indexed: 10/26/2022] Open
Abstract
Considering the indigenous utilization of Quercus incana Roxb., the present study deals with the investigation of antioxidant, free radical scavenging activity, total phenolic content, and antimicrobial activity of Q. incana Roxb. In vitro antioxidant activity of the plant fractions were determined by 1,1-diphenyl-2-picrylhydrazyl and nitric oxide scavenging method. Total phenolic contents were determined by gallic acid equivalent and antimicrobial activities were determined by agar well diffusion method. It was observed that Q. incana Roxb. showed significant antibacterial activity against Gram-positive and Gram-negative bacteria. n-Butanol fraction showed maximum activity against Micrococcus leuteus with 19 mm zone of inhibition. n-Butanol fraction of Q. incana Roxb. showed immense antifungal activity against Aspergillus niger (32 mm ± 0.55) and A. flavus (28 mm ± 0.45). Similarly n-butanol fraction showed relatively good antioxidant activity with IC50 value of 55.4 ± 0.21 μg/mL. The NO scavenging activity of ethyl acetate fraction (IC50 = 23.21 ± 0.31 μg/mL) was fairly good compared to other fractions. The current study of Q. incana Roxb. suggests the presences of synergetic action of some biological active compounds that may be present in the leaves of medicinal plant. Further studies are needed to better characterize the important active constituents responsible for the antimicrobial, antioxidant and free radical scavenging activity.
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Affiliation(s)
- Rizwana Sarwar
- Department of Chemistry, COMSATS Institute of Information Technology Abbottabad, Pakistan
| | - Umar Farooq
- Department of Chemistry, COMSATS Institute of Information Technology Abbottabad, Pakistan
| | - Ajmal Khan
- Department of Chemistry, COMSATS Institute of Information Technology Abbottabad, Pakistan
| | - Sadia Naz
- Department of Chemistry, COMSATS Institute of Information Technology Abbottabad, Pakistan
| | - Sara Khan
- Department of Chemistry, COMSATS Institute of Information Technology Abbottabad, Pakistan
| | - Afsar Khan
- Department of Chemistry, COMSATS Institute of Information Technology Abbottabad, Pakistan
| | - Abdur Rauf
- Department of Geology, University of Swabi Anbar, Pakistan
| | - Haji Bahadar
- Department of Pharmacy, Kohat University of Science and Technology Kohat, Pakistan
| | - Reaz Uddin
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi Karachi, Pakistan
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Liu Y, Yang Q, Xia G, Huang H, Li H, Ma L, Lu Y, He L, Xia X, She Z. Polyketides with α-Glucosidase Inhibitory Activity from a Mangrove Endophytic Fungus, Penicillium sp. HN29-3B1. JOURNAL OF NATURAL PRODUCTS 2015; 78:1816-1822. [PMID: 26230970 DOI: 10.1021/np500885f] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Five new compounds, pinazaphilones A and B (1, 2), two phenolic compounds (4, 5), and penicidone D (6), together with the known Sch 1385568 (3), (±)-penifupyrone (7), 3-O-methylfunicone (8), 5-methylbenzene-1,3-diol (9), and 2,4-dihydroxy-6-methylbenzoic acid (10) were obtained from the culture of the endophytic fungus Penicillium sp. HN29-3B1, which was isolated from a fresh branch of the mangrove plant Cerbera manghas collected from the South China Sea. Their structures were determined by analysis of 1D and 2D NMR and mass spectroscopic data. Structures of compounds 4 and 7 were further confirmed by a single-crystal X-ray diffraction experiment using Cu Kα radiation. The absolute configurations of compounds 1-3 were assigned by quantum chemical calculations of the electronic circular dichroic spectra. Compounds 2, 3, 5, and 7 inhibited α-glucosidase with IC50 values of 28.0, 16.6, 2.2, and 14.4 μM, respectively, and are thus more potent than the positive control, acarbose.
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Affiliation(s)
| | - Qin Yang
- Chinese Center for Chirality, Key Laboratory of Medicinal Chemistry and Molecular Diagnostics of Education Ministry of China, Hebei University , Baoding, 071002, People's Republic of China
| | | | | | | | | | | | | | - Xuekui Xia
- Key Laboratory for Applied Microbiology of Shandong Province, Biotechnology Center of Shandong Academy of Sciences , Jinan 250014, People's Republic of China
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Karmakar R, Pahari P, Mal D. Phthalides and Phthalans: Synthetic Methodologies and Their Applications in the Total Synthesis. Chem Rev 2014; 114:6213-84. [DOI: 10.1021/cr400524q] [Citation(s) in RCA: 249] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Raju Karmakar
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
- Technical University of Braunschweig, 38106 Braunschweig, Germany
| | - Pallab Pahari
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
- Synthetic
Organic Chemistry Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India
| | - Dipakranjan Mal
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
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31
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Shah SG, Shier WT, Jamaluddin, Tahir N, Hameed A, Ahmad S, Ali N. Penicillium verruculosum SG: a source of polyketide and bioactive compounds with varying cytotoxic activities against normal and cancer lines. Arch Microbiol 2014; 196:267-78. [DOI: 10.1007/s00203-013-0945-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 11/26/2013] [Accepted: 12/03/2013] [Indexed: 01/12/2023]
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32
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Reis FS, Ćirić A, Stojković D, Barros L, Ljaljević-Grbić M, Soković M, Ferreira ICFR. Effects of different culture conditions on biological potential and metabolites production in three Penicillium isolates. Drug Dev Ind Pharm 2013; 41:253-62. [PMID: 24261405 DOI: 10.3109/03639045.2013.858738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The genus Penicillium is well known for its importance in drug and food production. Certain species are produced on an industrial scale for the production of antibiotics (e.g. penicillin) or for insertion in food (e.g. cheese). In the present work, three Penicillium species, part of the natural mycobiota growing on various food products were selected - P. ochrochloron, P. funiculosum and P. verrucosum var. cyclopium. The objective of our study was to value these species from the point of view of production of bioactive metabolites. The species were obtained after inoculation and growth in Czapek and Malt media. Both mycelia and culture media were analyzed to monitor the production of different metabolites by each fungus and their release to the culture medium. The concentrations of sugars, organic acids, phenolic acids and tocopherols were determined. Antioxidant activity of the phenolic extracts was evaluated, as also the antimicrobial activity of phenolic acids, organic acids and tocopherols extracts. Rhamnose, xylose, fructose and trehalose were found in all the mycelia and culture media; the prevailing organic acids were oxalic and fumaric acids, and protocatechuic and p-hydroxybenzoic acids were the most common phenolic acids; γ-tocopherol was the most abundant vitamin E isoform. Generally, the phenolic extracts corresponding to the mycelia samples revealed higher antioxidant activity. Concerning the antimicrobial activity there were some fluctuations, however all the studied species revealed activity against the tested strains. Therefore, the in-vitro bioprocesses can be an alternative for the production of bioactive metabolites that can be used by pharmaceutical industry.
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Affiliation(s)
- Filipa S Reis
- Mountain Research Center (CIMO), ESA, Polytechnic Institute of Bragança , Campus de Santa Apolónia, Bragança , Portugal
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33
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Bladt TT, Frisvad JC, Knudsen PB, Larsen TO. Anticancer and antifungal compounds from Aspergillus, Penicillium and other filamentous fungi. Molecules 2013; 18:11338-76. [PMID: 24064454 PMCID: PMC6269870 DOI: 10.3390/molecules180911338] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 08/23/2013] [Accepted: 09/03/2013] [Indexed: 12/11/2022] Open
Abstract
This review covers important anticancer and antifungal compounds reported from filamentous fungi and in particular from Aspergillus, Penicillium and Talaromyces. The taxonomy of these fungi is not trivial, so a focus of this review has been to report the correct identity of the producing organisms based on substantial previous in-house chemotaxonomic studies.
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Affiliation(s)
- Tanja Thorskov Bladt
- Department of Systems Biology, Technical University of Denmark, Søltofts Plads, Building 221, DK-2800 Kgs. Lyngby, Denmark.
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34
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Intaraudom C, Boonyuen N, Suvannakad R, Rachtawee P, Pittayakhajonwut P. Penicolinates A–E from endophytic Penicillium sp. BCC16054. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.11.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Zhang Y, Han T, Ming Q, Wu L, Rahman K, Qin L. Alkaloids Produced by Endophytic Fungi: A Review. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700742] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In recent years, a number of alkaloids have been discovered from endophytic fungi in plants, which exhibited excellent biological properties such as antimicrobial, insecticidal, cytotoxic, and anticancer activities. This review mainly deals with the research progress on endophytic fungi for producing bioactive alkaloids such as quinoline and isoquinoline, amines and amides, indole derivatives, pyridines, and quinazolines. The biological activities and action mechanisms of these alkaloids from endophytic fungi are also introduced. Furthermore, the relationships between alkaloid-producing endophytes and their host plants, as well as their potential applications in the future are discussed.
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Affiliation(s)
- Yanyan Zhang
- Department of, Pharmacognosy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P.R. China
- Academy of Integrative, Fujian University of Traditional Chinese Medicine, Fujian 350003, P.R. China
| | - Ting Han
- Department of, Pharmacognosy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P.R. China
| | - Qianliang Ming
- Department of, Pharmacognosy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P.R. China
| | - Lingshang Wu
- Department of, Pharmacognosy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P.R. China
| | - Khalid Rahman
- Faculty of Science, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, UK
| | - Luping Qin
- Department of, Pharmacognosy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, P.R. China
- Academy of Integrative, Fujian University of Traditional Chinese Medicine, Fujian 350003, P.R. China
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36
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He YQ, Ma ZY, Zhang J, Du BZ, Yao BH. Antioxidant activity of the chemical constituents from the leaves of Quercus macrocarpa. Chem Nat Compd 2011. [DOI: 10.1007/s10600-011-9969-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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38
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YE Y, LI XQ, TANG CP. Natural Products Chemistry Research 2008's Progress in China. Chin J Nat Med 2010. [DOI: 10.1016/s1875-5364(10)60008-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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39
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Trisuwan K, Rukachaisirikul V, Sukpondma Y, Phongpaichit S, Preedanon S, Sakayaroj J. Lactone derivatives from the marine-derived fungus Penicillium sp. PSU-F44. Chem Pharm Bull (Tokyo) 2009; 57:1100-2. [PMID: 19801865 DOI: 10.1248/cpb.57.1100] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Two new fungal metabolites, penicipyrone (1), and penicilactone (2), were isolated from the marine-derived fungus Penicillium sp. PSU-F44 along with three known macrolides, (+)-brefeldin A (3), (+)-brefeldin C (4), and 7-oxobrefeldin A (5). Their antimicrobial activities against methicillin-resistant Staphylococcus aureus SK1 and Microsporum gypseum SH-MU-4 were examined.
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Affiliation(s)
- Kongkiat Trisuwan
- Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
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40
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Hsieh PW, Hsu LC, Lai CH, Wu CC, Hwang TL, Lin YK, Wu YC. Evaluation of the bioactivities of extracts of endophytes isolated from Taiwanese herbal plants. World J Microbiol Biotechnol 2009. [DOI: 10.1007/s11274-009-0036-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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41
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Ge HM, Yu ZG, Zhang J, Wu JH, Tan RX. Bioactive alkaloids from endophytic Aspergillus fumigatus. JOURNAL OF NATURAL PRODUCTS 2009; 72:753-755. [PMID: 19256529 DOI: 10.1021/np800700e] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Two new alkaloids, named 9-deacetylfumigaclavine C (1) and 9-deacetoxyfumigaclavine C (2), along with 12 known compounds (3-14), were isolated from the culture of Aspergillus fumigatus. The structures of the new compounds were elucidated by comprehensive spectroscopic analyses. Compound 2 showed selectively potent cytotoxicity against human leukemia cells (K562) with an IC(50) value of 3.1 microM, which was comparable to that of doxorubicin hydrochloride, a presently prescribed drug for the treatment of leukemia. Furthermore, 14-norpseurotin (4) significantly induced neurite outgrowth of rat pheochromocytoma cells (PC12) at a 10.0 microM concentration.
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Affiliation(s)
- Hui Ming Ge
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, People's Republic of China
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42
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Nicoletti R, Manzo E, Ciavatta ML. Occurence and bioactivities of funicone-related compounds. Int J Mol Sci 2009; 10:1430-1444. [PMID: 19468317 PMCID: PMC2680625 DOI: 10.3390/ijms10041430] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2009] [Revised: 03/23/2009] [Accepted: 03/26/2009] [Indexed: 11/16/2022] Open
Abstract
Studies on production of secondary metabolites by fungi have received a substantial boost lately, particularly with reference to applications of their biological properties in human medicine. Funicones represent a series of related compounds for which there is accumulating evidence supporting their possible use as pharmaceuticals. This paper provides a review on the current status of knowledge on these fungal extrolites, with special reference to aspects concerning their molecular structures and biological activities.
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Affiliation(s)
- Rosario Nicoletti
- Council for Research and Experimentation in Agriculture, C.A.T. Research Unit / Via Vitiello 108, Scafati 84018, Italy
- Author to whom correspondence should be addressed; E-Mail:
; Tel. +39-081-8563631; Fax: +39-081-8506206
| | - Emiliano Manzo
- Institute of Biomolecular Chemistry, National Research Council / Via Campi Flegrei 34, Pozzuoli 80078, Italy; E-Mails:
(E.M.);
(M.C.)
| | - Maria Letizia Ciavatta
- Institute of Biomolecular Chemistry, National Research Council / Via Campi Flegrei 34, Pozzuoli 80078, Italy; E-Mails:
(E.M.);
(M.C.)
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Suryanarayanan T, Thirunavukkarasu N, Govindarajulu M, Sasse F, Jansen R, Murali T. Fungal endophytes and bioprospecting. FUNGAL BIOL REV 2009. [DOI: 10.1016/j.fbr.2009.07.001] [Citation(s) in RCA: 175] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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44
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Chen Y, Shao C, Huang Z, Zhang Y, Cai X, She Z, Zhou S, Lin Y. Structure elucidation and NMR assignments for two amide alkaloids from a Mangrove endophytic Fungus (No. ZZF-22). MAGNETIC RESONANCE IN CHEMISTRY : MRC 2009; 47:92-95. [PMID: 18846582 DOI: 10.1002/mrc.2346] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The structure elucidations and complete (1)H and (13)C NMR assignments are reported for two new natural products: 3-benzylidene-8,8a-dihydroxy-2-methyl-hexahydro-pyrrolo[1,2-a]pyrazine-1,4-dione(1) and 4-hydroxy-6-(hydroxy-phenyl-methyl)-N-(3-methyl-butyryl)-nicotinamide (2). Both of these secondary metabolites were isolated from the fermentation medium of a Mangrove endophytic fungus. High resolution electron impact mass spectrometry (HREIMS), FT-IR Spectroscopy and NMR experiments including gCOSY, gHMQC, gHMBC and NOE were used for determination of the structures and assignments of the amide alkaloids.
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Affiliation(s)
- Yiguang Chen
- School of Chemistry and Chemical Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, PR China
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45
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Ming Ge H, Yun Zhang W, Ding G, Saparpakorn P, Chun Song Y, Hannongbua S, Tan RX. Chaetoglobins A and B, two unusual alkaloids from endophytic Chaetomium globosum culture. Chem Commun (Camb) 2008:5978-80. [PMID: 19030558 DOI: 10.1039/b812144c] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chaetoglobins A (1) and B (2), two azaphilone alkaloid dimers with an unprecedented skeleton, were characterized from an endophytic fungus Chaetomium globosum with the former ascertained to be a significant cytotoxin valuable for anti-tumor drug discovery.
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Affiliation(s)
- Hui Ming Ge
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, 210093, PR China
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