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Bao J, Zhao YF, Wang XX, Zhu K, Ao R, Liu H, Li XX, Zhang JS, Zhang H. Azaphilone pigments from the marine-derived Penicillium sclerotium UJNMF 0503 and their neuroprotective potential against H 2O 2-induced cell apoptosis through modulating PI3K/Akt pathway. Bioorg Chem 2024; 148:107434. [PMID: 38744168 DOI: 10.1016/j.bioorg.2024.107434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/29/2024] [Accepted: 05/06/2024] [Indexed: 05/16/2024]
Abstract
Azaphilones represent a particular group of fascinating pigments from fungal source, with easier industrialization and lower cost than the traditional plant-derived pigments, and they also display a wide range of pharmacological activities. Herein, 28 azaphilone analogs, including 12 new ones, were obtained from the fermentation culture of a marine fungus Penicillium sclerotium UJNMF 0503. Their structures were elucidated by MS, NMR and ECD analyses, together with NMR and ECD calculations and biogenetic considerations. Among them, compounds 1 and 2 feature an unusual natural benzo[d][1,3]dioxepine ring embedded with an orthoformate unit, while 3 and 4 represent the first azaphilone examples incorporating a novel rearranged 5/6 bicyclic core and a tetrahydropyran ring on the side chain, respectively. Our bioassays revealed that half of the isolates exhibited neuroprotective potential against H2O2-induced injury on RSC96 cells, while compound 13 displayed the best rescuing capacity toward the cell viability by blocking cellular apoptosis, which was likely achieved by upregulating the PI3K/Akt signaling pathway.
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Affiliation(s)
- Jie Bao
- School of Biological Science and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, China
| | - Yan-Fen Zhao
- School of Biological Science and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, China
| | - Xin-Xin Wang
- School of Biological Science and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, China
| | - Kongkai Zhu
- Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Rui Ao
- School of Biological Science and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, China
| | - Haishan Liu
- School of Biological Science and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, China
| | - Xiu-Xiu Li
- School of Biological Science and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, China
| | - Jun-Sheng Zhang
- School of Biological Science and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, China
| | - Hua Zhang
- School of Biological Science and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, China.
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Zang W, Li M, Sun J, Gao C, Wang L. Two New Species of Talaromyces Sect. Trachyspermi Discovered in China. Mycopathologia 2023; 188:793-804. [PMID: 37698735 DOI: 10.1007/s11046-023-00784-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 07/31/2023] [Indexed: 09/13/2023]
Abstract
Two new species of sect. Trachyspermi isolated from soil are proposed, namely, T. albidus (ex-type AS3.26143T) and T. rubidus (ex-type AS3.26142T), based on the integrated taxonomic methods. Morphologically, T. albidus is characterized by slow growth, white gymnothecia, singly-borne asci and ellipsoidal echinulate ascospores. Talaromyces rubidus is distinguished by restricted growth, moderate to abundant red soluble pigment on CYA and YES, biverticillate penicilli, and commonly ovoid to globose echinulate conidia. The two proposed novelties are further confirmed by the phylogenetic analyses of the concatenated BenA-CaM-Rpb2-ITS sequence matrix and the individual BenA, CaM, Rpb2 and ITS sequence matrices. Talaromyces albidus is closely related to T. assiutensis and T. trachyspermus, while T. rubidus is in the clade containing T. albobiverticillius, T. rubrifaciens, T. catalonicus, T. heiheensis, T. erythromellis, T. halophytorum, T. pernambucoensis, T. solicola and T. aerius.
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Affiliation(s)
- Wei Zang
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, Zhejiang, China
| | - Mi Li
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, 530200, Guangxi, China
| | - Jianqiu Sun
- School of Life and Environmental Science, Shaoxing University, Shaoxing, 312000, Zhejiang, China
| | - Chenghai Gao
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, Nanning, 530200, Guangxi, China
| | - Long Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.
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Xue Y, Wang L, Zhang X, Wang Z. Terminal carboxylation of branched carbon chain contributing to acidic stability of azaphilone pigments from a new isolate of Talaromyces amestolkiae. Food Chem 2023; 424:136338. [PMID: 37207602 DOI: 10.1016/j.foodchem.2023.136338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/22/2023] [Accepted: 05/07/2023] [Indexed: 05/21/2023]
Abstract
Red Monascus pigments, a series of natural azaphilone alkaloids, have been utilized in China as a traditional food colorant for over 1000 years. However, instability under an acidic condition is its drawback. A new strain of Talaromyces amestolkiae was isolated in the present work, which produced the azaphilone talaromycorubrin and the corresponding azaphilone alkaloid (N-MSG-talaromycorubramine) exhibiting good stability even at pH below 3. The azaphilone alkaloid with acidic stability, an alternative of Chinese traditional red Monascus pigments, is potential for application as natural food colorant in acidic foods. The acidic stability of azaphilone alkaloid also benefits for direct fermentation of N-MSG-talaromycorubramine under a low pH condition. More importantly, correlation relationship between the terminal carboxylation of branched carbon chain of azaphilone and the stability of azaphilone alkaloids under an acidic condition is set up for the first time, which makes designing other acidic stable azaphilone alkaloids via genetic engineering become possible.
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Affiliation(s)
- Yunxin Xue
- State Key Laboratory of Microbial Metabolism, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan, Shanghai 200240, China
| | - Long Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xuehong Zhang
- State Key Laboratory of Microbial Metabolism, School of Life Science and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan, Shanghai 200240, China
| | - Zhilong Wang
- State Key Laboratory of Microbial Metabolism, School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan, Shanghai 200240, China.
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Matsumoto T, Ohnishi E, Kitagawa T, Okayama M, Saito Y, Yoshikawa H, Ohta T, Yoshida T, Nakayama Y, Watanabe T. Azaphilones produced by Penicillium maximae with their cell death-inducing activity on Adriamycin-treated cancer cell. Genes Environ 2023; 45:5. [PMID: 36658662 DOI: 10.1186/s41021-023-00261-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 01/09/2023] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Heat shock proteins (Hsps) are overexpressed in several tumors and contribute to cell proliferation, metastasis, and anticancer drug resistance. Therefore, Hsp inhibitors have enhanced cytotoxicity as chemotherapeutic agents and may be effective with a reduced dosage for tumor therapy to avoid side effects. RESULTS Four new azaphilones, maximazaphilones I-IV (1-4), and three known compounds (5-7) have been isolated from the airborne-derived fungus Penicillium maximae. Inhibitory effects of isolated compounds against induction of Hsp105 were evaluated by the luciferase assay system using Hsp105 promoter. In this assay, 2-4, 6, and 7 significantly inhibited hsp105 promoter activity without cytotoxicity. In addition, all isolated compounds except for 5 significantly induced the death of Adriamycin (ADR)-treated HeLa cells. Interestingly, 1-4, 6, and 7 didn't show anti-proliferative and cell death-inducing activity without ADR. CONCLUSION This study revealed the chemical structures of maximazaphilones I-IV (1-4) and the potency of azaphilones may be useful for cancer treatment and reducing the dose of anticancer agents. In addition, one of the mechanisms of cell death-inducing activity for 2-4, 6, and 7 was suggested to be inhibitory effects of Hsp105 expression.
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Duan Y, Ma H, Wei X, Li M. Dynamic regulation of Monascus azaphilones biosynthesis by the binary MrPigE-MrPigF oxidoreductase system. Appl Microbiol Biotechnol 2022; 106:7519-7530. [PMID: 36221033 DOI: 10.1007/s00253-022-12219-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/25/2022] [Accepted: 09/28/2022] [Indexed: 11/02/2022]
Abstract
Monascus azaphilones (MAs) have been extensively applied as natural food coloring agents. MAs are classified into three categories: yellow MAs (YMAs), orange MAs (OMAs), and red MAs with various biological activities. However, the exact biosynthetic mechanism of OMAs and YMAs are not thoroughly elucidated. Firstly, we identified four DNA-binding residues of transcription factor MrPigB and constructed a multi-site saturation mutagenesis library of MrPigB. Then, comparative metabolite and gene expression of the mutants revealed that two oxidoreductases MrPigE and MrPigF were responsible for the formation of YMAs and OMAs. Finally, the in vitro and in vivo assays demonstrated the opposite roles of MrPigE and MrPigF in conversion of OMAs to YMAs. To our knowledge, this is the first report of a binary oxidoreductase system for dynamic regulation of fungal secondary metabolite biosynthesis. Broadly, our work also demonstrates the transcription factor engineering strategy for elucidating the biosynthetic pathway of secondary metabolite. KEY POINTS: • MrPigE converts orange Monascus azaphilones to yellow Monascus azaphilones • MrPigF oxidizes intermediates to afford orange Monascus azaphilones • MrPigE and MrPigF constitute a binary system in Monascus azaphilones biosynthesis.
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Affiliation(s)
- Yali Duan
- Hubei International Scientific and Technological Cooperation Base of Traditional Fermented Foods, Huazhong Agricultural University, Hubei Province, Wuhan, 430070, China.,College of Food Science and Technology, Huazhong Agricultural University, Hubei Province, Wuhan, 430070, China
| | - Hongmin Ma
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Wuhan University, Wuhan, 430072, China
| | - Xuetuan Wei
- College of Food Science and Technology, Huazhong Agricultural University, Hubei Province, Wuhan, 430070, China
| | - Mu Li
- Hubei International Scientific and Technological Cooperation Base of Traditional Fermented Foods, Huazhong Agricultural University, Hubei Province, Wuhan, 430070, China. .,College of Food Science and Technology, Huazhong Agricultural University, Hubei Province, Wuhan, 430070, China.
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Abstract
Pigments-producing microorganisms are quite common in Nature. However, there is a long journey from the Petri dish to the market place. Twenty-five years ago, scientists wondered if such productions would remain a scientific oddity or become an industrial reality. The answer is not straightforward as processes using fungi, bacteria or yeasts can now indeed provide carotenoids or phycocyanin at an industrial level. Another production factor to consider is peculiar as Monascus red colored food is consumed by more than one billion Asian people; however, still banned in many other countries. European and American consumers will follow as soon as "100%-guaranteed" toxin-free strains (molecular engineered strains, citrinin gene deleted strains) will be developed and commercialized at a world level. For other pigmented biomolecules, some laboratories and companies invested and continue to invest a lot of money as any combination of new source and/or new pigment requires a lot of experimental work, process optimization, toxicological studies, and regulatory approval. Time will tell whether investments in pigments such as azaphilones or anthraquinones were justified. Future trends involve combinatorial engineering, gene knock-out, and the production of niche pigments not found in plants such as C50 carotenoids or aryl carotenoids.
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Affiliation(s)
- Laurent Dufossé
- Laboratoire de Chimie et Biotechnologie des Produits Naturels (CHEMBIOPRO), Université de La Réunion, ESIROI Agroalimentaire, Ile de La Réunion, France.
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Liu L, Wang Z. Azaphilone alkaloids: prospective source of natural food pigments. Appl Microbiol Biotechnol 2021; 106:469-484. [PMID: 34921328 DOI: 10.1007/s00253-021-11729-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/02/2021] [Accepted: 12/03/2021] [Indexed: 01/19/2023]
Abstract
Azaphilone, biosynthesized by polyketide synthase, is a class of fungal metabolites. In this review, after brief introduction of the natural azaphilone diversity, we in detail discussed azaphilic addition reaction involving conversion of natural azaphilone into the corresponding azaphilone alkaloid. Then, setting red Monascus pigments (a traditional food colorant in China) as example, we presented a new strategy, i.e., interfacing azaphilic addition reaction with living microbial metabolism in a one-pot process, to produce azaphilone alkaloid with a specified amine residue (red Monascus pigments) during submerged culture. Benefit from the red Monascus pigments with a specified amine residue, the influence of primary amine on characteristics of the food colorant was highlighted. Finally, the progress for screening of alternative azaphilone alkaloids (production from interfacing azaphilic addition reaction with submerged culture of Talaromyces sp. or Penicillium sp.) as natural food colorant was reviewed. KEY POINTS: • Azaphilic addition reaction of natural azaphilone is biocompatible • Red Monascus pigment is a classic example of azaphilone alkaloids • Azaphilone alkaloids are alterative natural food colorant.
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Affiliation(s)
- Lujie Liu
- State Key Laboratory of Microbial Metabolism, and Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China.,State Key Laboratory of Bioreactor Engineering, R&D Center of Separation and Extraction Technology in Fermentation Industry, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhilong Wang
- State Key Laboratory of Microbial Metabolism, and Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China.
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8
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Yang MY, Wang YX, Chang QH, Li LF, Liu YF, Cao F. Cytochalasans and azaphilones: suitable chemotaxonomic markers for the Chaetomium species. Appl Microbiol Biotechnol 2021; 105:8139-55. [PMID: 34647136 DOI: 10.1007/s00253-021-11630-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/01/2021] [Accepted: 10/03/2021] [Indexed: 10/20/2022]
Abstract
The accurate taxonomic concept of the fungal Chaetomium species has been a hard work due to morphological similarity. Chemotaxonomy based on secondary metabolites is a powerful tool for taxonomical purposes, which could be used as an auxiliary reference to solve the problems encountered in the classification of Chaetomium. Among secondary metabolites produced by Chaetomium, cytochalasans and azaphilones exhibited a pattern of distribution and frequency of occurrence that establish them as chemotaxonomic markers for the Chaetomium species. This review attempted to elucidate the composition of the Chaetomium species and its relationship with classical taxonomy by summarizing the pattern of cytochalasans and azaphilones distribution and biosynthesis in the Chaetomium species. KEY POINTS: • Secondary metabolites from the genus Chaetomium are summarized. • Cytochalasans and azaphilones could be characteristic metabolites of the Chaetomium species. • Cytochalasans and azaphilones could be used to analyze for taxonomical purposes.
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9
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Hebra T, Eparvier V, Touboul D. Atmospheric pressure photoionization versus electrospray for the dereplication of highly conjugated natural products using molecular networks. J Chromatogr A 2020; 1630:461533. [PMID: 32950817 DOI: 10.1016/j.chroma.2020.461533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/01/2020] [Accepted: 09/08/2020] [Indexed: 12/30/2022]
Abstract
Natural products are sources of inspiration and reservoir of high valuable molecules. Recently, analytical tools based on liquid chromatography coupled to tandem mass spectrometry to generate molecular network became widely employed for dereplication. This strategy greatly accelerates the identification of known and structural hypothesis of unknown. Despite the availability of different ionization sources, alternatives to classical electrospray ionization (ESI), such as atmospheric pressure chemical ionization (APCI) or photoionization (APPI), have been neglected. In particular, APPI has been described for its ionization efficiency on non-polar molecules bearing no acid or basic groups. For that reason, we investigated APPI potential to generate molecular network and compare it to ESI on several criteria that are generation of ion species, sensitivity and signal-to-noise ratio (SNR) for different extracts rich in highly conjugated natural products. We first optimized APPI experimental conditions on crude extract from a fungus, Penicillium sclerotiorum, producing polyketones belonging to the azaphilone family. Then we compared APPI and ESI on different fractions of the fungus and on two plant extracts, French Guyanese Swartzia panacoco (Aubl.) R.S. Cowan (arial parts) and Indian Cassia auriculata L. (leaves) containing phenolic compounds, such as flavonoids. While ESI generated more ion species and displayed a better sensitivity, APPI generated only protonated adduct and better SNR. Comparing ESI and APPI generated species on molecular network reveal that both strategies overlap for the majority of protonated ions.
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Affiliation(s)
- Teo Hebra
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198, Gif-sur-Yvette, France
| | - Véronique Eparvier
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198, Gif-sur-Yvette, France
| | - David Touboul
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198, Gif-sur-Yvette, France.
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Yang ZJ, Zhang YF, Wu K, Xu YX, Meng XG, Jiang ZT, Ge M, Shao L. New azaphilones, phomopsones A-C with biological activities from an endophytic fungus Phomopsis sp. CGMCC No.5416. Fitoterapia 2020; 145:104573. [PMID: 32222428 DOI: 10.1016/j.fitote.2020.104573] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 01/22/2023]
Abstract
Three undescribed azaphilones, phomopsones A-C (1-3) and two known azaphilones (4-5) were isolated from the culture of endophytic fungus Phomopsis sp. CGMCC No.5416 from the stems of Achyranthes bidentata. Their structures were determined by spectroscopic analysis (HRESIMS, 1D and 2D NMR), and the absolute configurations were determined by CD spectroscopy. Compounds 2 and 3 showed significant inhibitory activities against HIV-1 with against HIV-1 with IC50 values of 7.6 and 0.5 μmol/L, respectively. Compounds 2 and 3 also displayed moderate cytotoxicity with CC50 values of 3.2-303 μmol/L against A549, MDA-MB-231 and PANC-1 cell lines. Moreover, compound 3 can induce the early apoptosis of PANC-1 cancer cells with the apoptosis rate of 28.54%.
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Affiliation(s)
- Zhi-Jun Yang
- School of Pharmacy, Shanghai University of Medine&Health Sciences, Pudong, Shanghai 201318, China; Microbial Pharmacology Laboratory, Shanghai University of Medine&Health Sciences, Pudong, Shanghai 201318, China
| | - Yi-Fan Zhang
- School of Pharmacy, Shanghai University of Medine&Health Sciences, Pudong, Shanghai 201318, China
| | - Kai Wu
- School of Pharmacy, Shanghai University of Medine&Health Sciences, Pudong, Shanghai 201318, China; Microbial Pharmacology Laboratory, Shanghai University of Medine&Health Sciences, Pudong, Shanghai 201318, China
| | - Yi-Xin Xu
- School of Pharmacy, Shanghai University of Medine&Health Sciences, Pudong, Shanghai 201318, China
| | - Xiang-Guo Meng
- School of Pharmacy, Shanghai University of Medine&Health Sciences, Pudong, Shanghai 201318, China
| | - Zhi-Teng Jiang
- School of Pharmacy, Shanghai University of Medine&Health Sciences, Pudong, Shanghai 201318, China
| | - Mei Ge
- Shanghai Laiyi Center for Biopharmaceutical R&D, Minhang, Shanghai 200240, China.
| | - Lei Shao
- Microbial Pharmacology Laboratory, Shanghai University of Medine&Health Sciences, Pudong, Shanghai 201318, China.
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Isbrandt T, Tolborg G, Ødum A, Workman M, Larsen TO. Atrorosins: a new subgroup of Monascus pigments from Talaromyces atroroseus. Appl Microbiol Biotechnol 2019; 104:615-622. [PMID: 31802169 DOI: 10.1007/s00253-019-10216-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/16/2019] [Accepted: 10/22/2019] [Indexed: 10/25/2022]
Abstract
A new series of azaphilone pigments named atrorosins have been isolated from the filamentous fungus Talaromyces atroroseus. Atrorosins have a similar azaphilone scaffold as the orange Monascus pigment PP-O, with a carboxylic acid group at C-1, but are unique by their incorporation of amino acids into the isochromene system. Despite that the atrorosin precursor PP-O, during fermentation, was initially produced as two isomers (3:2, cis:trans ratio), the atrorosins were surprisingly almost exclusively (99.5%) produced as the cis-form, possibly due to steric interactions with the incorporated amino acid. When grown on complex media, a whole range of atrorosins is produced, whereas individual atrorosins can be produced selectively during fermentation by supplementing with the desired primary amine-containing compound.
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Affiliation(s)
- Thomas Isbrandt
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, 2800, Kongens Lyngby, Denmark
| | - Gerit Tolborg
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, 2800, Kongens Lyngby, Denmark
| | - Anders Ødum
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, 2800, Kongens Lyngby, Denmark
| | - Mhairi Workman
- Novo Nordisk A/S, Smørmosevej 10-12, 2880, Bagsværd, Denmark
| | - Thomas Ostenfeld Larsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, 2800, Kongens Lyngby, Denmark.
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12
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Lim YJ, Lee DW, Choi JJ, Park SH, Kwon HJ. Polyaromatic Resin HP-20 Induced Accumulation of Intermediate Azaphilones in Monascus purpureus ∆ mppC and ∆ mpp7 Strains. J Microbiol Biotechnol 2019; 29:897-904. [PMID: 31091861 DOI: 10.0414/jmb.1902.02036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Monascus purpureus recombinant mppC and mpp7 knockout strains were subjected to extractive fermentation in the context of azaphilone pigment production. Inclusion of Diaion HP-20 resin resulted in the selective production of unreduced azaphilone congeners, in addition to the early intermediate FK17-P2a, from ∆mppC and ∆mpp7 strains that would otherwise mainly produce reduced congeners. Structural determination of two novel unreduced azaphilones from the ∆mpp7 strain was accomplished. The unreduced azaphilone compound was converted into the cognate reduced congener in recombinant M. purpureus strains, demonstrating its intermediate role in azaphilone biosynthesis. This study demonstrates the possibility that extractive fermentation with Diaion HP-20 resin can be used to obtain cryptic azaphilone metabolites.
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Affiliation(s)
- Yoon Ji Lim
- Department of Biological Sciences and Bioinformatics, Myongji University, Yongin 17058, Republic of Korea
| | - Doh Won Lee
- Department of Biological Sciences and Bioinformatics, Myongji University, Yongin 17058, Republic of Korea
| | - Jeong Ju Choi
- Department of Biological Sciences and Bioinformatics, Myongji University, Yongin 17058, Republic of Korea
| | - Si-Hyung Park
- Department of Oriental Medicine Resources and Institute for Traditional Korean Medicine Industry, Mokpo National University, Muan-gun, Jeollanam-do, 58554, Republic of Korea
| | - Hyung-Jin Kwon
- Department of Biological Sciences and Bioinformatics, Myongji University, Yongin 17058, Republic of Korea
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Kim JY, Woo EE, Ha LS, Ki DW, Lee IK, Yun BS. Neuraminidase Inhibitors from the Fruiting Body of Glaziella splendens. Mycobiology 2019; 47:256-260. [PMID: 31448146 PMCID: PMC6691809 DOI: 10.1080/12298093.2019.1616377] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/30/2019] [Accepted: 05/05/2019] [Indexed: 06/10/2023]
Abstract
Neuraminidase (NA) cleaves the glycosidic bond linkages of sialic acids to release the mature virions from infected cells and has been an attractive therapeutic target for anti-influenza agents. In our ongoing investigation of NA inhibitors in mushroom extracts, we found that the extract the fruiting body of Glaziella splendens potently inhibited neuraminidase. The fruiting bodies of G. splendens were extracted and partitioned successively with hexane, ethyl acetate, and butanol. The ethyl acetate soluble-layer was subjected to silica gel and Sephadex LH-20 column chromatographies, and MPLC to obtain five compounds (1-5). Their structures were determined by spectroscopic methods. NA inhibitory activity of these compounds was evaluated using NAs from recombinant rvH1N1, H3N2, and H5N1 influenza A viruses. One compound (1) was elucidated as a new azaphilone derivative, and four compounds (2-5) were identified as entonaemin A, comazaphilone D, rubiginosin A, and entonaemin B, respectively. Compounds 3 and 4 showed considerable inhibitory activity against three types of neuraminidases with the IC50 values of 30.9, 41.8, and 35.7 µM for 3 and 46.5, 50.4, and 29.9 µM for 4, respectively. This study reveals that the fruiting bodies of G. splendens possess azaphilone derivatives with the NA inhibitory activity. This is the first report on the isolation of neuraminidase inhibitors from the fruiting bodies of G. splendens.
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Affiliation(s)
- Ji-Yul Kim
- Division of Biotechnology and Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan-si, Korea
| | - E-Eum Woo
- Division of Biotechnology and Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan-si, Korea
| | - Lee Su Ha
- Division of Biotechnology and Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan-si, Korea
| | - Dae-Won Ki
- Division of Biotechnology and Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan-si, Korea
| | - In-Kyoung Lee
- Division of Biotechnology and Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan-si, Korea
| | - Bong-Sik Yun
- Division of Biotechnology and Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan-si, Korea
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14
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Zhou QY, Yang XQ, Zhang ZX, Wang BY, Hu M, Yang YB, Zhou H, Ding ZT. New azaphilones and tremulane sesquiterpene from endophytic Nigrospora oryzae cocultured with Irpex lacteus. Fitoterapia 2018; 130:26-30. [PMID: 30076888 DOI: 10.1016/j.fitote.2018.07.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/27/2018] [Accepted: 07/31/2018] [Indexed: 01/14/2023]
Abstract
Five new metabolites belonging to two backbones of pulvilloric acid-type azaphilone and tremulane sesquiterpene were obtained and their structures were determined by spectral analysis. Based on the biogenesis analysis, tremulane sesquiterpenes were obtained from Irpex lacteus by the stimulation of mixed-culture. The antifungal selectivities of metabolites produced by fungus against their co-culture fungus and common pathogens, exhibited competitive interaction of this mix-culture. The tremulane sesquiterpene conocenol B produced by I. lacteus through the induction of Nigrospora oryzae showed selectivity of anti-fungal activity against its co-culture fungus, N. oryzae, with MICs at 16 μg/mL and 128 μg/mL against I. lacteus. The fungus can metabolize these new compounds to inhibit the growth of co-culture fungus while not inhibiting its own growth. Compound 5 was active against acetylcholinesterase (AChE) with a ratio of 35% at the concentration of 50 μM.
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Affiliation(s)
- Qing-Yan Zhou
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, China
| | - Xue-Qiong Yang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, China
| | - Zhuo-Xi Zhang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, China
| | - Bang-Yan Wang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, China
| | - Ming Hu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, China
| | - Ya-Bin Yang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, China.
| | - Hao Zhou
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, China
| | - Zhong-Tao Ding
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, China.
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15
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Son S, Ko SK, Kim JW, Lee JK, Jang M, Ryoo IJ, Hwang GJ, Kwon MC, Shin KS, Futamura Y, Hong YS, Oh H, Kim BY, Ueki M, Takahashi S, Osada H, Jang JH, Ahn JS. Structures and biological activities of azaphilones produced by Penicillium sp. KCB11A109 from a ginseng field. Phytochemistry 2016; 122:154-164. [PMID: 26712614 DOI: 10.1016/j.phytochem.2015.12.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 12/01/2015] [Accepted: 12/14/2015] [Indexed: 06/05/2023]
Abstract
Twelve metabolites, including five highly oxygenated azaphilones, geumsanols A-E, along with seven known analogues were isolated from Penicillium sp. KCB11A109, a fungus derived from a ginseng field. Their structures were assigned by spectroscopic means (NMR and MS), and stereochemistries were determined by extensive spectroscopic analyses ((1)H-(1)H coupling constants, NOESY, and HETLOC) and chemical derivatizations (modified Mosher's method and acetonide formation). The isolates were evaluated for their anticancer, antimicrobial, antimalarial activities, and phenotypic effects in zebrafish development. Of these compounds possessing no pyranoquinone core, only geumsanol E exhibited cytotoxic activities and toxic effects on zebrafish embryos, suggesting that a double bond at C-11 and C-12 is important for biological activity.
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Affiliation(s)
- Sangkeun Son
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongju, Chungbuk 363-883, South Korea; Department of Biomolecular Science, University of Science and Technology, 217 Gajungro, Daejeon 305-333, South Korea
| | - Sung-Kyun Ko
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongju, Chungbuk 363-883, South Korea; Department of Biomolecular Science, University of Science and Technology, 217 Gajungro, Daejeon 305-333, South Korea
| | - Jong Won Kim
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongju, Chungbuk 363-883, South Korea
| | - Jae Kyoung Lee
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongju, Chungbuk 363-883, South Korea
| | - Mina Jang
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongju, Chungbuk 363-883, South Korea; Department of Biomolecular Science, University of Science and Technology, 217 Gajungro, Daejeon 305-333, South Korea
| | - In-Ja Ryoo
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongju, Chungbuk 363-883, South Korea
| | - Gwi Ja Hwang
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongju, Chungbuk 363-883, South Korea
| | - Min Cheol Kwon
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongju, Chungbuk 363-883, South Korea
| | - Kee-Sun Shin
- Microbial Resource Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Daejeon 306-809, South Korea
| | - Yushi Futamura
- Chemical Biology Research Group, RIKEN CSRS, Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Young-Soo Hong
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongju, Chungbuk 363-883, South Korea; Department of Biomolecular Science, University of Science and Technology, 217 Gajungro, Daejeon 305-333, South Korea
| | - Hyuncheol Oh
- College of Pharmacy, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 570-749, South Korea
| | - Bo Yeon Kim
- Department of Biomolecular Science, University of Science and Technology, 217 Gajungro, Daejeon 305-333, South Korea; Incurable Diseases Therapeutics Research Center (WCI), Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongju, Chungbuk 363-883, South Korea
| | - Masashi Ueki
- RIKEN-KRIBB Joint Research Unit, Global Research Cluster, RIKEN, Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Shunji Takahashi
- RIKEN-KRIBB Joint Research Unit, Global Research Cluster, RIKEN, Hirosawa, Wako-shi, Saitama 351-0198, Japan; Chemical Biology Research Group, RIKEN CSRS, Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Hiroyuki Osada
- Chemical Biology Research Group, RIKEN CSRS, Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Jae-Hyuk Jang
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongju, Chungbuk 363-883, South Korea; Department of Biomolecular Science, University of Science and Technology, 217 Gajungro, Daejeon 305-333, South Korea.
| | - Jong Seog Ahn
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongju, Chungbuk 363-883, South Korea; Department of Biomolecular Science, University of Science and Technology, 217 Gajungro, Daejeon 305-333, South Korea.
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16
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Arai T, Kojima R, Motegi Y, Kato J, Kasumi T, Ogihara J. PP-O and PP-V, Monascus pigment homologues, production, and phylogenetic analysis in Penicillium purpurogenum. Fungal Biol 2015; 119:1226-1236. [PMID: 26615745 DOI: 10.1016/j.funbio.2015.08.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 08/27/2015] [Accepted: 08/27/2015] [Indexed: 11/17/2022]
Abstract
The production of pigments as secondary metabolites by microbes is known to vary by species and by physiological conditions within a single strain. The fungus strain Penicillium purpurogenum IAM15392 has been found to produce violet pigment (PP-V) and orange pigment (PP-O),Monascus azaphilone pigment homologues, when grown under specific culture conditions. In this study, we analysed PP-V and PP-O production capability in seven strains of P. purpurogenum in addition to strain IAM15392 under specific culture conditions. The pigment production pattern of five strains cultivated in PP-V production medium was similar to that of strain IAM15392, and all violet pigments produced by these five strains were confirmed to be PP-V. Strains that did not produce pigment were also identified. In addition, two strains cultivated in PP-O production medium produced a violet pigment identified as PP-V. The ribosomal DNA (rDNA) internal transcribed spacer (ITS) region sequences from the eight P. purpurogenum strains were sequenced and used to construct a neighbor-joining phylogenetic tree. PP-O and PP-V production of P. purpurogenum was shown to be related to phylogenetic placement based on rDNA ITS sequence. Based on these results, two hypotheses for the alteration of pigment production of P. purpurogenum in evolution were proposed.
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Affiliation(s)
- Teppei Arai
- Department of Chemistry and Life Science, College of Bioresource Sciences, Graduate School of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan
| | - Ryo Kojima
- Department of Chemistry and Life Science, College of Bioresource Sciences, Graduate School of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan
| | - Yoshiki Motegi
- Department of Chemistry and Life Science, College of Bioresource Sciences, Graduate School of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan
| | - Jun Kato
- Department of Chemistry and Life Science, College of Bioresource Sciences, Graduate School of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan
| | - Takafumi Kasumi
- Department of Chemistry and Life Science, College of Bioresource Sciences, Graduate School of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan
| | - Jun Ogihara
- Department of Chemistry and Life Science, College of Bioresource Sciences, Graduate School of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan.
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17
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Hewage RT, Aree T, Mahidol C, Ruchirawat S, Kittakoop P. One strain-many compounds (OSMAC) method for production of polyketides, azaphilones, and an isochromanone using the endophytic fungus Dothideomycete sp. Phytochemistry 2014; 108:87-94. [PMID: 25310919 DOI: 10.1016/j.phytochem.2014.09.013] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 08/11/2014] [Accepted: 07/15/2014] [Indexed: 06/04/2023]
Abstract
Polyketides 1-6 were produced by a one strain-many compounds (OSMAC) approach using the endophytic fungus Dothideomycete sp. CRI7 as a producer. Metabolite production of the fungus Dothideomycete sp. CRI7 was sensitive to sources of potato and malt extract used for the preparation of PDB and Czapek malt media, respectively. Three hitherto unknown metabolites were obtained from the fungus CRI7 grown in PDB medium prepared from a commercial potato powder instead of fresh tubers of potato, while three others were obtained from the fungus cultivated in Czapek malt medium. Moreover, a source of malt extract used in the Czapek malt medium was found to influence metabolite production by the fungus CRI7. Structure elucidation of these compounds was achieved by analysis of spectroscopic data, as well as by single crystal X-ray analysis. Two of the compounds showed weak cytotoxic activity, while the remainders were inactive toward the cell lines tested. One compound exhibited radical scavenging activity with an IC50 value of 21.7 μM, and inhibited aromatase with an IC50 value of 12.3 μM.
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Affiliation(s)
- Ranuka T Hewage
- Chulabhorn Graduate Institute, Chemical Biology Program, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand
| | - Thammarat Aree
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Chulabhorn Mahidol
- Chulabhorn Graduate Institute, Chemical Biology Program, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; Chulabhorn Research Institute, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand
| | - Somsak Ruchirawat
- Chulabhorn Graduate Institute, Chemical Biology Program, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; Chulabhorn Research Institute, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), CHE, Ministry of Education, Bangkok, Thailand
| | - Prasat Kittakoop
- Chulabhorn Graduate Institute, Chemical Biology Program, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; Chulabhorn Research Institute, Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), CHE, Ministry of Education, Bangkok, Thailand.
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18
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Surup F, Mohr KI, Jansen R, Stadler M. Cohaerins G-K, azaphilone pigments from Annulohypoxylon cohaerens and absolute stereochemistry of cohaerins C-K. Phytochemistry 2013; 95:252-8. [PMID: 23969107 DOI: 10.1016/j.phytochem.2013.07.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2013] [Revised: 07/24/2013] [Accepted: 07/26/2013] [Indexed: 05/26/2023]
Abstract
Four azaphilones, for which the trivial names cohaerins G, H, I and K are proposed, were isolated from the methanolic stromatal extract of Annulohypoxylon cohaerens together with the known metabolites cohaerins C-F and 4,5,4',5'-tetrahydroxy-1,1'-binaphthyl (BNT). Their planar structures were determined by NMR spectroscopy and by mass spectrometry. While their core structure is identical with cohaerin C and F, respectively, subgroups 2-hydroxy-6-methylphenyl and (1R,2R,4S)-4-hydroxy-2-methyl-6-oxocyclohexyl account for the structural diversity as substituents at C-3 of the azaphilone core. The absolute stereochemistry was assigned by NOE NMR experiments, CD spectroscopy and derivatisation with Mosher's acid; in addition, the stereochemistry of cohaerins C-F was revised. The metabolites showed cytotoxic effects besides a weak antimicrobial activity.
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Affiliation(s)
- Frank Surup
- Helmholtz Centre for Infection Research GmbH, Department Microbial Drugs, Inhoffenstraße 7, 38124 Braunschweig, Germany
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