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Norouzi H, Sohrabi M, Yousefi M, Boustie J. Tridepsides as potential bioactives: a review on their chemistry and the global distribution of their lichenic and non-lichenic natural sources. FRONTIERS IN FUNGAL BIOLOGY 2023; 4:1088966. [PMID: 37746133 PMCID: PMC10512237 DOI: 10.3389/ffunb.2023.1088966] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 03/24/2023] [Indexed: 09/26/2023]
Abstract
Tridepsides, as fully oxidized polyketides, have been known to exist in lichens for more than a century. Recent studies have showed that these possible defensive lichenochemicals possess various biological activities. Also, a candidate biosynthetic gene cluster was recently reported for gyrophoric acid (GA), an important tridepside. The present study focused on biosynthesis, natural sources, biological activities, and bioanalytical methods of tridepside molecules. Our survey shows that, so far, lichenic tridepsides have been reported from 37 families, 111 genera, and 526 species of lichen. Because many of their species contain tridepsides, the families Parmeliaceae, Lobariaceae, and Peltigeraceae can be considered critical lichenic sources of tridepsides. Furthermore, several species of Hypotrachyna in Parmeliaceae family showed lichenic tridepsides, suggesting that this genus is a viable source of tridepsides. This research also explored tridepsides from non-lichenic sources, such as non-lichenized fungi, lichenicolous fungi, endophytes, parasites, and liverworts, which offer substantial potential as biotechnological sources to produce tridepsides, which are produced in small amounts in lichen thalli. Two lichenic tridepsides have also been detected in non-lichenic sources: GA and tenuiorin (TE). Additionally, no significant correlation was found between tridepside biosynthesis and geographical distribution patterns for several potentially tridepside-producing lichens. We further showed that GA is the most studied tridepside with various reported biological activities, including anticancer, wound healing, photoprotection, anti-aging, antioxidant, cardiovascular effect, DNA interaction, anti-diabetes, anti-Alzheimer's, anti-bacterial, and antifungal. Last but not least, this study provides an overview of some bioanalytical methods used to analyze tridepsides over the past few years.
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Affiliation(s)
- Hooman Norouzi
- Department of Horticultural Sciences, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran
| | - Mohammad Sohrabi
- Department of Biotechnology, Iranian Research Organization for Science and Technology, Tehran, Iran
| | - Masoud Yousefi
- Department of Environmental Science, Faculty of Natural Resources, University of Tehran, Karaj, Iran
| | - Joel Boustie
- Univ Rennes, Centre National de la Recherche Scientifique (CNRS), ISCR (Institut des Sciences Chimiques de Rennes) - Mixed Research Unit (MRU) 6226, Rennes, France
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Ren M, Jiang S, Wang Y, Pan X, Pan F, Wei X. Discovery and excavation of lichen bioactive natural products. Front Microbiol 2023; 14:1177123. [PMID: 37138611 PMCID: PMC10149937 DOI: 10.3389/fmicb.2023.1177123] [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: 03/01/2023] [Accepted: 03/24/2023] [Indexed: 05/05/2023] Open
Abstract
Lichen natural products are a tremendous source of new bioactive chemical entities for drug discovery. The ability to survive in harsh conditions can be directly correlated with the production of some unique lichen metabolites. Despite the potential applications, these unique metabolites have been underutilized by pharmaceutical and agrochemical industries due to their slow growth, low biomass availability, and technical challenges involved in their artificial cultivation. At the same time, DNA sequence data have revealed that the number of encoded biosynthetic gene clusters in a lichen is much higher than in natural products, and the majority of them are silent or poorly expressed. To meet these challenges, the one strain many compounds (OSMAC) strategy, as a comprehensive and powerful tool, has been developed to stimulate the activation of silent or cryptic biosynthetic gene clusters and exploit interesting lichen compounds for industrial applications. Furthermore, the development of molecular network techniques, modern bioinformatics, and genetic tools is opening up a new opportunity for the mining, modification, and production of lichen metabolites, rather than merely using traditional separation and purification techniques to obtain small amounts of chemical compounds. Heterologous expressed lichen-derived biosynthetic gene clusters in a cultivatable host offer a promising means for a sustainable supply of specialized metabolites. In this review, we summarized the known lichen bioactive metabolites and highlighted the application of OSMAC, molecular network, and genome mining-based strategies in lichen-forming fungi for the discovery of new cryptic lichen compounds.
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Affiliation(s)
- Meirong Ren
- Key Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming, China
| | - Shuhua Jiang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Yanyan Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Xinhua Pan
- Jiangxi Xiankelai Biotechnology Co., Ltd., Jiujiang, China
| | - Feng Pan
- Jiangxi Xiankelai Biotechnology Co., Ltd., Jiujiang, China
| | - Xinli Wei
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
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Lichen Depsides and Tridepsides: Progress in Pharmacological Approaches. J Fungi (Basel) 2023; 9:jof9010116. [PMID: 36675938 PMCID: PMC9866793 DOI: 10.3390/jof9010116] [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: 11/30/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
Depsides and tridepsides are secondary metabolites found in lichens. In the last 10 years, there has been a growing interest in the pharmacological activity of these compounds. This review aims to discuss the research findings related to the biological effects and mechanisms of action of lichen depsides and tridepsides. The most studied compound is atranorin, followed by gyrophoric acid, diffractaic acid, and lecanoric acid. Antioxidant, cytotoxic, and antimicrobial activities are among the most investigated activities, mainly in in vitro studies, with occasional in silico and in vivo studies. Clinical trials have not been conducted using depsides and tridepsides. Therefore, future research should focus on conducting more in vivo work and clinical trials, as well as on evaluating the other activities. Moreover, despite the significant increase in research work on the pharmacology of depsides and tridepsides, there are many of these compounds which have yet to be investigated (e.g., hiascic acid, lassalic acid, ovoic acid, crustinic acid, and hypothamnolic acid).
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Fungal Depsides-Naturally Inspiring Molecules: Biosynthesis, Structural Characterization, and Biological Activities. Metabolites 2021; 11:metabo11100683. [PMID: 34677398 PMCID: PMC8540757 DOI: 10.3390/metabo11100683] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/05/2021] [Accepted: 10/02/2021] [Indexed: 11/23/2022] Open
Abstract
Fungi represent a huge reservoir of structurally diverse bio-metabolites. Although there has been a marked increase in the number of isolated fungal metabolites over the past years, many hidden metabolites still need to be discovered. Depsides are a group of polyketides consisting of two or more ester-linked hydroxybenzoic acid moieties. They possess valuable bioactive properties, such as anticancer, antidiabetic, antibacterial, antiviral, anti-inflammatory, antifungal, antifouling, and antioxidant qualities, as well as various human enzyme-inhibitory activities. This review provides an overview of the reported data on fungal depsides, including their sources, biosynthesis, physical and spectral data, and bioactivities in the period from 1975 to 2020. Overall, 110 metabolites and more than 122 references are confirmed. This is the first review of these multi-faceted metabolites from fungi.
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Axenic culture and biosynthesis of secondary compounds in lichen symbiotic fungi, the Parmeliaceae. Symbiosis 2020. [DOI: 10.1007/s13199-020-00719-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Sun W, Zhuang C, Li X, Zhang B, Lu X, Zheng Z, Dong Y. Varic acid analogues from fungus as PTP1B inhibitors: Biological evaluation and structure-activity relationships. Bioorg Med Chem Lett 2017. [PMID: 28642102 DOI: 10.1016/j.bmcl.2017.06.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Protein tyrosine phosphatase 1B (PTP1B) inhibitors as potential therapies for diabetes and obesity have attracted much attention in recent years. Six varic acid analogues were isolated from two strains of fungi and evaluated for PTP1B inhibition activities. The structure-activity relationships were also characterized and predicted by molecular modeling. Further kinetic studies indicated the reversible and competitive inhibition manner of varic acid analogues. Trivaric acid showed insulin-sensitizing effect not only in vitro but also in vivo, representing a promising lead compound for further optimization.
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Affiliation(s)
- Wenlong Sun
- School of Life Science, Biotechnology, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Chunlin Zhuang
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China.
| | - Xia Li
- School of Life Science, Biotechnology, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Bowei Zhang
- School of Life Science, Biotechnology, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Xinhua Lu
- New Drug Research and Development Center, North China Pharmaceutical Group Corporation and National Microbial Medicine Engineering and Research Center, Shijiazhuang, Hebei 050015, China.
| | - Zhihui Zheng
- New Drug Research and Development Center, North China Pharmaceutical Group Corporation and National Microbial Medicine Engineering and Research Center, Shijiazhuang, Hebei 050015, China
| | - Yuesheng Dong
- School of Life Science, Biotechnology, Dalian University of Technology, Dalian, Liaoning 116024, China.
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Depsidones inhibit aromatase activity and tumor cell proliferation in a co-culture of human primary breast adipose fibroblasts and T47D breast tumor cells. Toxicol Rep 2017; 4:165-171. [PMID: 28959637 PMCID: PMC5615129 DOI: 10.1016/j.toxrep.2017.03.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/13/2017] [Accepted: 03/17/2017] [Indexed: 01/15/2023] Open
Abstract
Depsidones are aromatase inhibitors in primary human breast adipose fibroblasts. Depsidones may have pharmacotherapeutical relevance for breast cancer treatment. Co-cultures of breast tumor and fibroblasts cells create a vivo realistic in vitro model for estrogen dependent breast cancer.
Naturally occurring depsidones from the marine fungus Aspergillus unguis are known to have substantial anti-cancer activity, but their mechanism of action remains elusive. The purpose of this study was to examine the anti-aromatase activity of two common depsidones, unguinol and aspergillusidone A, in a co-culture system of human primary breast adipose fibroblasts and hormonal responsive T47D breast tumor cells. Using this in vitro model it was shown that these depsidones inhibit the growth of T47D tumor cells most likely via inhibition of aromatase (CYP19) activity. The IC50 values of these depisidones were compared with the aromatase inhibitors letrozole and exemestane. Letrozole and exemestane had IC50 values of respectively, 0.19 and 0.14 μM, while those for Unguinol and Aspergillusidone A were respectively, 9.7 and 7.3 μM. Our results indicate that among the depsidones there maybe aromatase inhibitors with possible pharmacotherapeutical relevance.
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Sun W, Zhang B, Zheng H, Zhuang C, Li X, Lu X, Quan C, Dong Y, Zheng Z, Xiu Z. Trivaric acid, a new inhibitor of PTP1b with potent beneficial effect on diabetes. Life Sci 2016; 169:52-64. [PMID: 27871946 DOI: 10.1016/j.lfs.2016.11.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 11/02/2016] [Accepted: 11/17/2016] [Indexed: 11/30/2022]
Abstract
AIM To screen a potential PTP1b inhibitor from the microbial origin-based compound library and to investigate the potential anti-diabetic effects of the inhibitor in vivo and determine its primary anti-diabetic mechanism in vitro and in silico. METHODS PTP1b inhibitory activity was measured using recombination protein as the enzyme and p-NPP as the substrate. The binding of the inhibitor to PTP1b was analysed by docking in silico and confirmed by ITC experiments. The intracellular signalling pathway was detected by Western blot analysis in HepG2 cells. The anti-diabetic effects were evaluated using a diabetic mice model in vivo. RESULTS Among 545 microbial origin-based pure compounds tested, trivaric acid, a tridepside, was selected as a PTP1B inhibitor exhibiting strong inhibitory activity with an IC50 of 173nM. Docking and ITC studies showed that trivaric acid was able to spontaneously bind to PTP1b and may inhibit PTP1b by blocking the catalytic domain of the phosphatase. Trivaric acid also enhanced the ability of insulin to stimulate the IR/IRS/Akt/GLUT2 pathway and increase the glucose consumption in HepG2 cells. In diabetic mice, trivaric acid that had been encapsulated into Eudrgit L100-5.5 showed significant anti-diabetic effects, improving insulin resistance, leptin resistance and lipid profile and weight control at doses of 5mg/kg and 50mg/kg. SIGNIFICANCE Trivaric acid is a potential lead compound in the search for anti-diabetic agents targeting PTP1b.
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Affiliation(s)
- Wenlong Sun
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Bowei Zhang
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Haizhou Zheng
- New Drug Research and Development Center, North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering and Research Center, Shijiazhuang 050015, China
| | - Chunlin Zhuang
- Research Center for Marine Drugs, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Xia Li
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Xinhua Lu
- New Drug Research and Development Center, North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering and Research Center, Shijiazhuang 050015, China
| | - Chunshan Quan
- Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Dalian 116024, Liaoning, China
| | - Yuesheng Dong
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian 116024, Liaoning, China.
| | - Zhihui Zheng
- New Drug Research and Development Center, North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering and Research Center, Shijiazhuang 050015, China.
| | - Zhilong Xiu
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian 116024, Liaoning, China
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