1
|
Stelmasiewicz M, Świątek Ł, Gibbons S, Ludwiczuk A. Bioactive Compounds Produced by Endophytic Microorganisms Associated with Bryophytes—The “Bryendophytes”. Molecules 2023; 28:molecules28073246. [PMID: 37050009 PMCID: PMC10096483 DOI: 10.3390/molecules28073246] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023] Open
Abstract
The mutualistic coexistence between the host and endophyte is diverse and complex, including host growth regulation, the exchange of substances like nutrients or biostimulants, and protection from microbial or herbivore attack. The latter is commonly associated with the production by endophytes of bioactive natural products, which also possess multiple activities, including antibacterial, insecticidal, antioxidant, antitumor, and antidiabetic properties, making them interesting and valuable model substances for future development into drugs. The endophytes of higher plants have been extensively studied, but there is a dearth of information on the biodiversity of endophytic microorganisms associated with bryophytes and, more importantly, their bioactive metabolites. For the first time, we name bryophyte endophytes “bryendophytes” to elaborate on this important and productive source of biota. In this review, we summarize the current knowledge on the diversity of compounds produced by endophytes, emphasizing bioactive molecules from bryendophytes. Moreover, the isolation methods and biodiversity of bryendophytes from mosses, liverworts, and hornworts are described.
Collapse
Affiliation(s)
- Mateusz Stelmasiewicz
- Department of Pharmacognosy with the Medicinal Plant Garden, Medical University of Lublin, 20-093 Lublin, Poland
| | - Łukasz Świątek
- Department of Virology with Viral Diagnostics Laboratory, Medical University of Lublin, 20-093 Lublin, Poland
| | - Simon Gibbons
- Centre for Natural Products Discovery (CNPD), Liverpool John Moores University, Liverpool L3 3AF, UK
| | - Agnieszka Ludwiczuk
- Department of Pharmacognosy with the Medicinal Plant Garden, Medical University of Lublin, 20-093 Lublin, Poland
| |
Collapse
|
2
|
Mohamed H, Ebrahim W, El-Neketi M, Awad MF, Zhang H, Zhang Y, Song Y. In Vitro Phytobiological Investigation of Bioactive Secondary Metabolites from the Malus domestica-Derived Endophytic Fungus Aspergillus tubingensis Strain AN103. Molecules 2022; 27:3762. [PMID: 35744888 PMCID: PMC9228098 DOI: 10.3390/molecules27123762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/02/2022] [Accepted: 06/09/2022] [Indexed: 11/16/2022] Open
Abstract
Endophytic fungi including black aspergilli have the potential to synthesize multiple bioactive secondary metabolites. Therefore, the search for active metabolites from endophytic fungi against pathogenic microbes has become a necessity for alternative and promising strategies. In this study, 25 endophytic fungal isolates associated with Malus domestica were isolated, grown, and fermented on a solid rice medium. Subsequently, their ethyl acetate crude extracts were pretested for biological activity. One endophytic fungal isolate demonstrated the highest activity and was chosen for further investigation. Based on its phenotypic, ITS ribosomal gene sequences, and phylogenetic characterization, this isolate was identified as Aspergillus tubingensis strain AN103 with the accession number (KR184138). Chemical investigations of its fermented cultures yielded four compounds: Pyranonigrin A (1), Fonsecin (2), TMC 256 A1 (3), and Asperazine (4). Furthermore, 1H-NMR, HPLC, and LC-MS were performed for the identification and structure elucidation of these metabolites. The isolated pure compounds showed moderate-to-potent antibacterial activities against Pseudomonas aeruginosa and Escherichia coli (MIC value ranged from 31 and 121 to 14.5 and 58.3 μg/mL), respectively; in addition, the time−kill kinetics for the highly sensitive bacteria against isolated compounds was also investigated. The antifungal activity results show that (3) and (4) had the maximum effect against Fusarium solani and A. niger with inhibition zones of 16.40 ± 0.55 and 16.20 ± 0.20 mm, respectively, and (2) had the best effect against Candida albicans, with an inhibition zone of 17.8 ± 1.35 mm. Moreover, in a cytotoxicity assay against mouse lymphoma cell line L5178Y, (4) exhibited moderate cytotoxicity (49% inhibition), whereas (1−3) reported weak cytotoxicity (15, 26, and 19% inhibition), respectively. Our results reveal that these compounds might be useful to develop potential cytotoxic and antimicrobial drugs and an alternative source for various medical and pharmaceutical fields.
Collapse
Affiliation(s)
- Hassan Mohamed
- Colin Ratledge Center for Microbial Lipids, School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China; (H.Z.); (Y.Z.)
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt;
| | - Weaam Ebrahim
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt; (W.E.); (M.E.-N.)
| | - Mona El-Neketi
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt; (W.E.); (M.E.-N.)
| | - Mohamed F. Awad
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt;
- Department of Biology, College of Science, Taif University, Taif 21944, Saudi Arabia
| | - Huaiyuan Zhang
- Colin Ratledge Center for Microbial Lipids, School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China; (H.Z.); (Y.Z.)
| | - Yao Zhang
- Colin Ratledge Center for Microbial Lipids, School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China; (H.Z.); (Y.Z.)
| | - Yuanda Song
- Colin Ratledge Center for Microbial Lipids, School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China; (H.Z.); (Y.Z.)
| |
Collapse
|
3
|
Phytochemical Profile and Anticancer Potential of Endophytic Microorganisms from Liverwort Species, Marchantia polymorpha L. Molecules 2021; 27:molecules27010153. [PMID: 35011384 PMCID: PMC8746834 DOI: 10.3390/molecules27010153] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/16/2021] [Accepted: 12/26/2021] [Indexed: 12/20/2022] Open
Abstract
Liverwort endophytes could be a source of new biologically active substances, especially when these spore-forming plants are known to produce compounds that are not found in other living organisms. Despite the significant development of plant endophytes research, there are only a few studies describing liverwort endophytic microorganisms and their metabolites. In the presented study, the analysis of the volatile compounds obtained from thallose liverwort species, Marchantia polymorpha L., and its endophytes was carried out. For this purpose, non-polar extracts of plant material and symbiotic microorganisms were obtained. The extracts were analyzed using gas chromatography coupled to mass spectrometry. Compounds with the structure of diketopiperazine in the endophyte extract were identified. Liverwort volatile extract was a rich source of cuparane-, chamigrane-, acorane-, and thujopsane-type sesquiterpenoids. The cytotoxicity of ethyl acetate extracts from endophytic microorganisms was evaluated on a panel of cancer (FaDu, HeLa, and SCC-25) cell lines and normal (VERO), and revealed significant anticancer potential towards hypopharyngeal squamous cell carcinoma and cervical adenocarcinoma.
Collapse
|
4
|
Liu J, Yu R, Jia J, Gu W, Zhang H. Assignment of Absolute Configurations of Two Promising Anti- Helicobacter pylori Agents from the Marine Sponge-Derived Fungus Aspergillus niger L14. Molecules 2021; 26:molecules26165061. [PMID: 34443650 PMCID: PMC8399357 DOI: 10.3390/molecules26165061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/15/2021] [Accepted: 08/18/2021] [Indexed: 12/02/2022] Open
Abstract
A chemical investigation into endozoic fungus Aspergillus niger L14 derived from the marine sponge of Reniera japonica collected off Xinghai Bay (China) resulted in the isolation of two dimeric naphtho-γ-pyrones, fonsecinone A (1) and isoaurasperone A (2). Through a combination of ECD spectra and X-ray diffraction analysis, the chiral axes of compounds 1 and 2 were unambiguously determined as Rα-configurations. Bioassay results indicated that these substances exhibited remarkably inhibitory effects on human pathogens Helicobacter pylori G27 and 159 with MIC values of ≤4 μg/mL, which are similar to those of the positive control, ampicillin sodium. To the best of our knowledge, this is the first report on absolute configuration of 1 and crystallographic data of 2, as well as their potent anti-H. pylori activities.
Collapse
Affiliation(s)
- Jia Liu
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China; (J.L.); (R.Y.)
| | - Ronglu Yu
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China; (J.L.); (R.Y.)
| | - Jia Jia
- Jiangsu Key Laboratory of Pathogen Biology, Department of Pathogen Biology, Nanjing Medical University, Nanjing 211166, China;
| | - Wen Gu
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China;
| | - Huawei Zhang
- School of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China; (J.L.); (R.Y.)
- Correspondence: ; Tel.: +86-571-8832-0913
| |
Collapse
|
5
|
Hu YW, Liu Y, Guo EY, Wang YY, Xu WQ, Gao Y, Jiang XY, Feng F, Xu J, Liu WY. Naphtho-γ-pyrone Dimers from an Endozoic Aspergillus niger and the Effects of Coisolated Monomers in Combination with Cisplatin on a Cisplatin-Resistant A549 Cell Line. JOURNAL OF NATURAL PRODUCTS 2021; 84:1889-1897. [PMID: 34156846 DOI: 10.1021/acs.jnatprod.0c01262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Chemotherapy resistance is one of the main causes of lung cancer treatment failure, and a combination regimen may be an effective way to overcome this. Here we report 5 new (1-3, 7, and 9) and 15 known polyketides, isolated from an endozoic Aspergillus niger. The structures of the new compounds were determined by the interpretation of IR, HRESIMS, NMR, and ECD spectra. The ESI-MS/MS fragmentation of the isolated naphtho-γ-pyrone isomers in positive mode is discussed. The effects of isolated compounds in combination with cisplatin (DDP) on a DDP-resistant A549 cell line (A459/DDP) are investigated. The most active compound, 12, could reduce the ratio of GSH/GSSG, promote the generation of intracellular ROS, and cooperate with DDP to down-regulated levels of Nrf2, Akt, HO-1, and NQO1, suggesting that inhibition of Nrf2 and Akt pathways might be involved in the combined effect of 12 and DDP in A549/DDP cells.
Collapse
Affiliation(s)
- Yun-Wei Hu
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Ying Liu
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Er-Yan Guo
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Yu-Ying Wang
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Wan-Qi Xu
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Yan Gao
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Xue-Yang Jiang
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Feng Feng
- Department of Natural Medicinal Chemistry, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
- Jiangsu Food & Pharmaceutical Science College, Huaian 223003, People's Republic of China
| | - Jian Xu
- Department of Traditional Chinese Medicine, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Wen-Yuan Liu
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| |
Collapse
|
6
|
Wang NN, Liu CY, Wang T, Li YL, Xu K, Lou HX. Two New Quinazoline Derivatives from the Moss Endophytic Fungus Aspergillus sp. and Their Anti-inflammatory Activity. NATURAL PRODUCTS AND BIOPROSPECTING 2021; 11:105-110. [PMID: 33219498 PMCID: PMC7933300 DOI: 10.1007/s13659-020-00287-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 11/12/2020] [Indexed: 06/11/2023]
Abstract
Two new quinazoline derivatives versicomides E (1) and F (2), and 10 known compounds (3-12) were isolated from the moss endophytic fungus Aspergillus sp. Their structures were determined on the basis of extensive spectroscopic data analysis and ECD calculations. Among them, the compound 7 (6-hydroxy-3-methoxyviridicatin) was first reported as a natural product. Inhibition on LPS-induced NO production in RAW 264.7 murine macrophages found that compounds 5, 7 and 8 showed significant inhibitory effects on NO production, with IC50 values of 49.85, 22.14 and 46.02 μM respectively.
Collapse
Affiliation(s)
- Ning-Ning Wang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China
| | - Chun-Yu Liu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China
| | - Tian Wang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China
| | - Yue-Lan Li
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China
| | - Ke Xu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China
| | - Hong-Xiang Lou
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan, 250012, China.
| |
Collapse
|
7
|
Yang Y, Mao H, Chen L, Li L. Targeting signal pathways triggered by cyclic peptides in cancer: Current trends and future challenges. Arch Biochem Biophys 2021; 701:108776. [PMID: 33515532 DOI: 10.1016/j.abb.2021.108776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/04/2021] [Accepted: 01/19/2021] [Indexed: 10/22/2022]
Abstract
Cancer is a global health issue that origins thousands of deaths annually worldwide. Cyclic peptides are polypeptide chains which are formed by cyclic sequence of amide bonds between proteinogenic or non-proteinogenic amino acids. Numerous evidences indicate that cyclic peptides are implicated with the occurrence and development of cancer. This review presents the current knowledge about the role of cyclic peptides in cancer, such as liver cancer, colorectal cancer, ovarian cancer, breast cancer as well as prostate cancer. Specifically, the precise molecular mechanisms between cyclic peptides and cancer are elaborated. Some cyclic peptides from nature and synthesis prevent the occurrence and development of cancer. However, some other cyclic peptides including endothelin-1, urotensinⅡand melanin-concentrating hormone deteriorate the pathogenesis of cancer. Given the pleiotropic actions of cyclic peptides, the identification and development of cyclic peptides and their derivates as drug may be a potent therapeutic strategy for cancer.
Collapse
Affiliation(s)
- Yiyuan Yang
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, China
| | - Hui Mao
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, China
| | - Linxi Chen
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, China.
| | - Lanfang Li
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, China.
| |
Collapse
|
8
|
Bai M, Wang Y, Liu T, Lian YX, Bai QQ, Song XP, Han CR, Zheng CJ, Chen GY. One new piperazinedione isolated from a mangrove-derived fungus Aspergillus niger JX-5. Nat Prod Res 2020; 36:2277-2283. [PMID: 33016123 DOI: 10.1080/14786419.2020.1828407] [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] [Indexed: 10/23/2022]
Abstract
One new piperazinedione derivative, nigerpiperazine A (1), along with six known compounds (2-7) were isolated from the fungus Aspergillus niger JX-5 from mangrove Ceriops tagal. Nigerpiperazine A (1) was elucidated by spectroscopic analyses and 13C NMR chemical shift calculations, compounds 4 and 5 were determined by X-ray and the CD spectra. The absolute configuration of 4 was identified by X-ray for the first time. Compounds 1 and 4 showed inhibitory activities against Helicoverpa armigera Hubner with the IC50 values of 200 and 100 µg/mL, respectively.
Collapse
Affiliation(s)
- Meng Bai
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, People's Republic of China.,Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Yue Wang
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, People's Republic of China.,Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Ting Liu
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Yu-Xing Lian
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Qi-Qi Bai
- Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Xiao-Ping Song
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, People's Republic of China.,Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Chang-Ri Han
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, People's Republic of China.,Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China.,Hainan Vocational University of Science and Technology, Haikou, People's Republic of China
| | - Cai-Juan Zheng
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, People's Republic of China.,Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| | - Guang-Ying Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, People's Republic of China.,Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, People's Republic of China
| |
Collapse
|
9
|
Carboué Q, Maresca M, Herbette G, Roussos S, Hamrouni R, Bombarda I. Naphtho-Gamma-Pyrones Produced by Aspergillus tubingensis G131: New Source of Natural Nontoxic Antioxidants. Biomolecules 2019; 10:biom10010029. [PMID: 31878243 PMCID: PMC7023098 DOI: 10.3390/biom10010029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/20/2019] [Accepted: 12/20/2019] [Indexed: 12/19/2022] Open
Abstract
Seven naphtho-gamma-pyrones (NγPs), including asperpyrone E, aurasperone A, dianhydroaurasperone C, fonsecin, fonsecinone A, fonsecin B, and ustilaginoidin A, were isolated from Aspergillus tubingensis G131, a non-toxigenic strain. The radical scavenging activity of these NγPs was evaluated using ABTS assay. The Trolox equivalent antioxidant capacity on the seven isolated NγPs ranged from 2.4 to 14.6 μmol L-1. The toxicity and ability of the NγPs to prevent H2O2-mediated cell death were evaluated using normal/not cancerous cells (CHO cells). This cell-based assay showed that NγPs: (1) Are not toxic or weakly toxic towards cells and (2) are able to protect cells from oxidant injuries with an IC50 on H2O2-mediated cell death ranging from 2.25 to 1800 μmol mL-1. Our data show that A. tubingensis G131 strain is able to produce various NγPs possessing strong antioxidant activities and low toxicities, making this strain a good candidate for antioxidant applications in food and cosmetic industries.
Collapse
Affiliation(s)
- Quentin Carboué
- Vinovalie, ZA les portes du Tarn, 81370 Saint-Sulpice-la-Pointe, France
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE, 13397 Marseille, France; (S.R.); (R.H.)
- Correspondence: (Q.C.); (M.M.); (I.B.); Tel.: +33-491-28-8254 (M.M.)
| | - Marc Maresca
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, 13397 Marseille, France
- Correspondence: (Q.C.); (M.M.); (I.B.); Tel.: +33-491-28-8254 (M.M.)
| | - Gaëtan Herbette
- Aix Marseille Univ, CNRS, Centrale Marseille, FSCM, Spectropole, 13397 Marseille, France;
| | - Sevastianos Roussos
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE, 13397 Marseille, France; (S.R.); (R.H.)
| | - Rayhane Hamrouni
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE, 13397 Marseille, France; (S.R.); (R.H.)
| | - Isabelle Bombarda
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE, 13397 Marseille, France; (S.R.); (R.H.)
- Correspondence: (Q.C.); (M.M.); (I.B.); Tel.: +33-491-28-8254 (M.M.)
| |
Collapse
|
10
|
Antonov AS, Leshchenko EV, Zhuravleva OI, Dyshlovoy SA, von Amsberg G, Popov RS, Denisenko VA, Kirichuk NN, Afiyatullov SS. Naphto-Γ-pyrones from the marine-derived fungus Aspergillus foetidus. Nat Prod Res 2019; 35:131-134. [PMID: 31242774 DOI: 10.1080/14786419.2019.1610954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Nine naphto-γ-pyrones rubrofusarine B (1), TMC 256 A1 (2), fansecinones A (3) and B (4), aurasperones A (5), B (6) and F (7), dianhydro-aurasperone C (8) and asperpyrone B (9) were isolated from the marine-derived fungus Aspergillus foetidus KMM 4694. Their structures were established based on spectroscopic methods. The effect of the substances on viability and colony formation of human drug-resistant prostate cancer 22Rv1 cell was evaluated.
Collapse
Affiliation(s)
- Alexander S Antonov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Vladivostok, Russian Federation
| | - Elena V Leshchenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Vladivostok, Russian Federation.,Far Eastern Federal University, Vladivostok, Russian Federation
| | - Olesya I Zhuravleva
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Vladivostok, Russian Federation.,Far Eastern Federal University, Vladivostok, Russian Federation
| | - Sergey A Dyshlovoy
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Vladivostok, Russian Federation.,Far Eastern Federal University, Vladivostok, Russian Federation.,Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumorzentrum, University Medical Center Hamburg-Eppendorf, Humburg, Germany
| | - Gunhild von Amsberg
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumorzentrum, University Medical Center Hamburg-Eppendorf, Humburg, Germany
| | - Roman S Popov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Vladivostok, Russian Federation
| | - Vladimir A Denisenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Vladivostok, Russian Federation
| | - Natalya N Kirichuk
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Vladivostok, Russian Federation
| | - Shamil Sh Afiyatullov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Vladivostok, Russian Federation
| |
Collapse
|
11
|
|
12
|
Frisvad JC, Møller LLH, Larsen TO, Kumar R, Arnau J. Safety of the fungal workhorses of industrial biotechnology: update on the mycotoxin and secondary metabolite potential of Aspergillus niger, Aspergillus oryzae, and Trichoderma reesei. Appl Microbiol Biotechnol 2018; 102:9481-9515. [PMID: 30293194 PMCID: PMC6208954 DOI: 10.1007/s00253-018-9354-1] [Citation(s) in RCA: 194] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/28/2018] [Accepted: 08/29/2018] [Indexed: 12/11/2022]
Abstract
This review presents an update on the current knowledge of the secondary metabolite potential of the major fungal species used in industrial biotechnology, i.e., Aspergillus niger, Aspergillus oryzae, and Trichoderma reesei. These species have a long history of safe use for enzyme production. Like most microorganisms that exist in a challenging environment in nature, these fungi can produce a large variety and number of secondary metabolites. Many of these compounds present several properties that make them attractive for different industrial and medical applications. A description of all known secondary metabolites produced by these species is presented here. Mycotoxins are a very limited group of secondary metabolites that can be produced by fungi and that pose health hazards in humans and other vertebrates when ingested in small amounts. Some mycotoxins are species-specific. Here, we present scientific basis for (1) the definition of mycotoxins including an update on their toxicity and (2) the clarity on misclassification of species and their mycotoxin potential reported in literature, e.g., A. oryzae has been wrongly reported as an aflatoxin producer, due to misclassification of Aspergillus flavus strains. It is therefore of paramount importance to accurately describe the mycotoxins that can potentially be produced by a fungal species that is to be used as a production organism and to ensure that production strains are not capable of producing mycotoxins during enzyme production. This review is intended as a reference paper for authorities, companies, and researchers dealing with secondary metabolite assessment, risk evaluation for food or feed enzyme production, or considerations on the use of these species as production hosts.
Collapse
Affiliation(s)
- Jens C Frisvad
- Department of Biotechnology and Biomedicine (DTU Bioengineering), Technical University of Denmark, Søltofts Plads, B. 221, 2800, Kongens Lyngby, Denmark.
| | - Lars L H Møller
- Department of Product Safety, Novozymes A/S, Krogshoejvej 36, 2880, Bagsvaerd, Denmark
| | - Thomas O Larsen
- Department of Biotechnology and Biomedicine (DTU Bioengineering), Technical University of Denmark, Søltofts Plads, B. 221, 2800, Kongens Lyngby, Denmark
| | - Ravi Kumar
- Department of Genomics and Bioinformatics, Novozymes Inc., 1445 Drew Ave., Davis, CA, 95618, USA
| | - José Arnau
- Department of Fungal Strain Technology and Strain Approval Support, Novozymes A/S, Krogshoejvej 36, 2880, Bagsvaerd, Denmark
| |
Collapse
|
13
|
Koizumi Y, Nagai K, Gao L, Koyota S, Yamaguchi T, Natsui M, Imai Y, Hasumi K, Sugiyama T, Kuba K. Involvement of RSK1 activation in malformin-enhanced cellular fibrinolytic activity. Sci Rep 2018; 8:5472. [PMID: 29615689 PMCID: PMC5882963 DOI: 10.1038/s41598-018-23745-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 03/15/2018] [Indexed: 12/03/2022] Open
Abstract
Pharmacological interventions to enhance fibrinolysis are effective for treating thrombotic disorders. Utilizing the in vitro U937 cell line-based fibrin degradation assay, we had previously found a cyclic pentapeptide malformin A1 (MA1) as a novel activating compound for cellular fibrinolytic activity. The mechanism by which MA1 enhances cellular fibrinolytic activity remains unknown. In the present study, we show that RSK1 is a crucial mediator of MA1-induced cellular fibrinolysis. Treatment with rhodamine-conjugated MA1 showed that MA1 localizes mainly in the cytoplasm of U937 cells. Screening with an antibody macroarray revealed that MA1 induces the phosphorylation of RSK1 at Ser380 in U937 cells. SL0101, an inhibitor of RSK, inhibited MA1-induced fibrinolytic activity, and CRISPR/Cas9-mediated knockout of RSK1 but not RSK2 suppressed MA1-enhanced fibrinolysis in U937 cells. Synthetic active MA1 derivatives also induced the phosphorylation of RSK1. Furthermore, MA1 treatment stimulated phosphorylation of ERK1/2 and MEK1/2. PD98059, an inhibitor of MEK1/2, inhibited MA1-induced phosphorylation of RSK1 and ERK1/2, indicating that MA1 induces the activation of the MEK-ERK-RSK pathway. Moreover, MA1 upregulated the expression of urokinase-type plasminogen activator (uPA) and increased uPA secretion. These inductions were abrogated in RSK1 knockout cells. These results indicate that RSK1 is a key regulator of MA1-induced extracellular fibrinolytic activity.
Collapse
Affiliation(s)
- Yukio Koizumi
- Department of Biochemistry and Metabolic Science, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan.
| | - Kenichiro Nagai
- School of Pharmacy, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Lina Gao
- Department of Biochemistry and Metabolic Science, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Souichi Koyota
- Molecular Medicine Laboratory, Bioscience Education and Research Support Center, Akita University, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Tomokazu Yamaguchi
- Department of Biochemistry and Metabolic Science, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Miyuki Natsui
- Department of Biochemistry and Metabolic Science, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Yumiko Imai
- Laboratory of Regulation of Intractable Infectious Diseases, National Institute of Biomedical Innovation, Health and Nutrition, 7-6-8 Saito-Asagi, Ibaraki, Osaka, 567-0085, Japan
| | - Keiji Hasumi
- Department of Applied Biological Science, Tokyo Noko University, 3-5-8 Saiwaicho, Fuchu, Tokyo, 183-8509, Japan
| | - Toshihiro Sugiyama
- Department of Biochemistry and Metabolic Science, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Keiji Kuba
- Department of Biochemistry and Metabolic Science, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| |
Collapse
|
14
|
Wang X, Lin M, Xu D, Lai D, Zhou L. Structural Diversity and Biological Activities of Fungal Cyclic Peptides, Excluding Cyclodipeptides. Molecules 2017; 22:E2069. [PMID: 29186926 PMCID: PMC6150023 DOI: 10.3390/molecules22122069] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 11/20/2017] [Accepted: 11/23/2017] [Indexed: 11/23/2022] Open
Abstract
Cyclic peptides are cyclic compounds formed mainly by the amide bonds between either proteinogenic or non-proteinogenic amino acids. This review highlights the occurrence, structures and biological activities of fungal cyclic peptides (excluding cyclodipeptides, and peptides containing ester bonds in the core ring) reported until August 2017. About 293 cyclic peptides belonging to the groups of cyclic tri-, tetra-, penta-, hexa-, hepta-, octa-, nona-, deca-, undeca-, dodeca-, tetradeca-, and octadecapeptides as well as cyclic peptides containing ether bonds in the core ring have been isolated from fungi. They were mainly isolated from the genera Aspergillus, Penicillium, Fusarium, Acremonium and Amanita. Some of them were screened to have antimicrobial, antiviral, cytotoxic, phytotoxic, insecticidal, nematicidal, immunosuppressive and enzyme-inhibitory activities to show their potential applications. Some fungal cyclic peptides such as the echinocandins, pneumocandins and cyclosporin A have been developed as pharmaceuticals.
Collapse
Affiliation(s)
- Xiaohan Wang
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Minyi Lin
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Dan Xu
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Daowan Lai
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| | - Ligang Zhou
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China.
| |
Collapse
|
15
|
Tawfike AF, Tate R, Abbott G, Young L, Viegelmann C, Schumacher M, Diederich M, Edrada-Ebel R. Metabolomic Tools to Assess the Chemistry and Bioactivity of EndophyticAspergillusStrain. Chem Biodivers 2017; 14. [DOI: 10.1002/cbdv.201700040] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 06/29/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Ahmed F. Tawfike
- Strathclyde Institute of Pharmacy and Biomedical Sciences; University of Strathclyde; The John Arbuthnott Building, 161 Cathedral Street Glasgow G4 0NR UK
- Department of Pharmacognosy; Faculty of Pharmacy; Helwan University; Cairo Egypt
| | - Rothwelle Tate
- Strathclyde Institute of Pharmacy and Biomedical Sciences; University of Strathclyde; The John Arbuthnott Building, 161 Cathedral Street Glasgow G4 0NR UK
| | - Gráinne Abbott
- Strathclyde Institute of Pharmacy and Biomedical Sciences; University of Strathclyde; The John Arbuthnott Building, 161 Cathedral Street Glasgow G4 0NR UK
| | - Louise Young
- Strathclyde Institute of Pharmacy and Biomedical Sciences; University of Strathclyde; The John Arbuthnott Building, 161 Cathedral Street Glasgow G4 0NR UK
| | - Christina Viegelmann
- Strathclyde Institute of Pharmacy and Biomedical Sciences; University of Strathclyde; The John Arbuthnott Building, 161 Cathedral Street Glasgow G4 0NR UK
| | - Marc Schumacher
- Laboratoire de Biologie Moleculaire et Cellulaire du Cancer; Fondation de Recherche Cancer et Sang; Hopital Kirchberg; 9 rue Edward Steichen 2540 Luxembourg City Luxembourg
| | - Marc Diederich
- Laboratoire de Biologie Moleculaire et Cellulaire du Cancer; Fondation de Recherche Cancer et Sang; Hopital Kirchberg; 9 rue Edward Steichen 2540 Luxembourg City Luxembourg
- Department of Pharmacy; College of Pharmacy; Seoul National University; 1 Gwanak-ro Gwanak-gu, Seoul 08826 Korea
| | - RuAngelie Edrada-Ebel
- Strathclyde Institute of Pharmacy and Biomedical Sciences; University of Strathclyde; The John Arbuthnott Building, 161 Cathedral Street Glasgow G4 0NR UK
| |
Collapse
|
16
|
Park SY, Oh HH, Park YL, Yu HM, Myung DS, Cho SB, Lee WS, Park D, Joo YE. Malformin A1 treatment alters invasive and oncogenic phenotypes of human colorectal cancer cells through stimulation of the p38 signaling pathway. Int J Oncol 2017; 51:959-966. [PMID: 28713983 DOI: 10.3892/ijo.2017.4070] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Accepted: 07/03/2017] [Indexed: 11/05/2022] Open
Abstract
Malformin A1 (MA1), a cyclic pentapeptide isolated from Aspergillus niger, has been found to possess a range of bioactive properties including antibacterial activity. However, it is unclear whether MA1 exerts an anticancer effect or not. In this study, we conducted in vitro experiments to investigate its anticancer properties in human colorectal cancer cells. The effect of MA1 on human colorectal cancer cells, SW480 and DKO1, was examined by the WST-1 cell viability assay, inverted microscopy, 5-bromo-2-deoxyuridine (BrdU) incorporation, flow cytometry, DNA fragmentation, wound healing, Transwell assays, and western blotting. MA1 treatment showed potent cytotoxic activities on human colorectal cancer cells. MA1 treatment induced apoptosis by activating the poly(ADP-ribose) polymerase (PARP), caspase‑3, -7, and -9. MA1 treatment led to the increase in p53 upregulated modulator of apoptosis (PUMA) and the decrease in X-linked inhibitor of apoptosis protein (XIAP) and Survivin. In addition, MA1 treatment induced cell cycle arrest in the sub-G1 phase. The pan-caspase inhibitor, Z‑VAD‑FMK, attenuated these MA1-induced apoptotic effects on human colorectal cancer cells. Moreover, MA1 treatment suppressed tumor cell migration and invasion. The phosphorylation level of p38 was upregulated by MA1 treatment, and the inhibitor of p38, SB203580, attenuated the MA1-induced p38 phosphorylation as well as caspase‑3 and PARP activation. These results indicate that MA1 treatment alters invasive and oncogenic phenotypes of human colorectal cancer cells through the stimulation of the p38 signaling pathway.
Collapse
Affiliation(s)
- Sun-Young Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 501-757, Republic of Korea
| | - Hyung-Hoon Oh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 501-757, Republic of Korea
| | - Young-Lan Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 501-757, Republic of Korea
| | - Hyung-Min Yu
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 501-757, Republic of Korea
| | - Dae-Seong Myung
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 501-757, Republic of Korea
| | - Sung-Bum Cho
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 501-757, Republic of Korea
| | - Wan-Sik Lee
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 501-757, Republic of Korea
| | - Daeho Park
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea
| | - Young-Eun Joo
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju 501-757, Republic of Korea
| |
Collapse
|
17
|
Metabolite analysis of endophytic fungi from cultivars of Zingiber officinale Rosc. identifies myriad of bioactive compounds including tyrosol. 3 Biotech 2017; 7:146. [PMID: 28597159 DOI: 10.1007/s13205-017-0768-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 02/13/2017] [Indexed: 12/30/2022] Open
Abstract
Endophytic fungi associated with rhizomes of four cultivars of Zingiber officinale were identified by molecular and morphological methods and evaluated for their activity against soft rot pathogen Pythium myriotylum and clinical pathogens. The volatile bioactive metabolites produced by these isolates were identified by GC-MS analysis of the fungal crude extracts. Understanding of the metabolites produced by endophytes is also important in the context of raw consumption of ginger as medicine and spice. A total of fifteen isolates were identified from the four varieties studied. The various genera identified were Acremonium sp., Gliocladiopsis sp., Fusarium sp., Colletotrichum sp., Aspergillus sp., Phlebia sp., Earliella sp., and Pseudolagarobasidium sp. The endophytic community was unique to each variety, which could be due to the varying host genotype. Fungi from phylum Basidiomycota were identified for the first time from ginger. Seven isolates showed activity against Pythium, while only two showed antibacterial activity. The bioactive metabolites identified in the fungal crude extracts include tyrosol, benzene acetic acid, ergone, dehydromevalonic lactone, N-aminopyrrolidine, and many bioactive fatty acids and their derivatives which included linoleic acid, oleic acid, myristic acid, n-hexadecanoic acid, palmitic acid methyl ester, and methyl linoleate. The presence of these varying bioactive endophytic fungi may be one of the reasons for the differences in the performance of the different ginger varieties.
Collapse
|
18
|
Carvalho A, Chu J, Meinguet C, Kiss R, Vandenbussche G, Masereel B, Wouters J, Kornienko A, Pelletier J, Mathieu V. A harmine-derived beta-carboline displays anti-cancer effects in vitro by targeting protein synthesis. Eur J Pharmacol 2017; 805:25-35. [PMID: 28322844 DOI: 10.1016/j.ejphar.2017.03.034] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 03/13/2017] [Accepted: 03/15/2017] [Indexed: 12/17/2022]
Abstract
Growing evidence indicates that protein synthesis is deregulated in cancer onset and progression and targeting this process might be a selective way to combat cancers. While harmine is known to inhibit DYRK1A and intercalate into the DNA, tri-substitution was shown previously to modify its activity profile in favor of protein synthesis inhibition. In this study, we thus evaluated the optimized derivative CM16 in vitro anti-cancer effects unfolding its protein synthesis inhibition activity. Indeed, the growth inhibitory profile of CM16 in the NCI 60-cancer-cell-line-panel correlated with those of other compounds described as protein synthesis inhibitors. Accordingly, CM16 decreased in a time- and concentration-dependent manner the translation of neosynthesized proteins in vitro while it did not affect mRNA transcription. CM16 rapidly penetrated into the cell in the perinuclear region of the endoplasmic reticulum where it appears to target translation initiation as highlighted by ribosomal disorganization. More precisely, we found that the mRNA expression levels of the initiation factors EIF1AX, EIF3E and EIF3H differ when comparing resistant or sensitive cell models to CM16. Additionally, CM16 induced eIF2α phosphorylation. Those effects could explain, at least partly, the CM16 cytostatic anti-cancer effects observed in vitro while neither cell cycle arrest nor DNA intercalation could be demonstrated. Therefore, targeting protein synthesis initiation with CM16 could represent a new promising alternative to current cancer therapies due to the specific alterations of the translation machinery in cancer cells as recently evidenced with respect to EIF1AX and eIF3 complex, the potential targets identified in this present study.
Collapse
Affiliation(s)
- Annelise Carvalho
- Laboratoire de Cancérologie et Toxicologie Expérimentale, Faculté de Pharmacie, Université Libre de Bruxelles, Brussels, Belgium
| | - Jennifer Chu
- Department of Biochemistry, McGill University, Montreal, Québec, Canada
| | - Céline Meinguet
- Namur Medicine and Drug Innovation Center (NAMEDIC-NARILIS), Université de Namur, Namur, Belgium
| | - Robert Kiss
- Laboratoire de Cancérologie et Toxicologie Expérimentale, Faculté de Pharmacie, Université Libre de Bruxelles, Brussels, Belgium
| | - Guy Vandenbussche
- Laboratory for the Structure and Function of Biological Membranes, Faculté des Sciences, Université Libre de Bruxelles, Brussels, Belgium
| | - Bernard Masereel
- Namur Medicine and Drug Innovation Center (NAMEDIC-NARILIS), Université de Namur, Namur, Belgium
| | - Johan Wouters
- Namur Medicine and Drug Innovation Center (NAMEDIC-NARILIS), Université de Namur, Namur, Belgium
| | - Alexander Kornienko
- Department of Chemistry and Biochemistry, Texas State University, 601 University Drive, San Marcos, TX 78666, USA
| | - Jerry Pelletier
- Department of Biochemistry, McGill University, Montreal, Québec, Canada
| | - Véronique Mathieu
- Laboratoire de Cancérologie et Toxicologie Expérimentale, Faculté de Pharmacie, Université Libre de Bruxelles, Brussels, Belgium.
| |
Collapse
|
19
|
Zhou YH, Zhang M, Zhu RX, Zhang JZ, Xie F, Li XB, Chang WQ, Wang XN, Zhao ZT, Lou HX. Heptaketides from an Endolichenic Fungus Biatriospora sp. and Their Antifungal Activity. JOURNAL OF NATURAL PRODUCTS 2016; 79:2149-57. [PMID: 27556953 DOI: 10.1021/acs.jnatprod.5b00998] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Twelve new heptaketides, biatriosporins A-L (1-12), biatriosporin M (13) (a ramulosin derivative), and 19 known compounds (14-32) were isolated from the endolichenic fungus Biatriospora sp. (8331C). The structures of these compounds were determined by analyzing MS and NMR data. The absolute configurations of compounds 1, 2, 7, and 9 were determined by single-crystal X-ray diffraction analysis, whereas compound 10 was deduced with Mosher's method. Four of the compounds were active in an antifungal assay. The most potent compound, compound 4, also sensitized clinically derived azole-resistant Candida albicans strains to fluconazole (FLC). A mechanistic investigation revealed that 4 inhibited the function of efflux pumps and reduced the transcriptional expression of the efflux-pump-related genes CDR1 and CDR2.
Collapse
Affiliation(s)
- Yan-Hui Zhou
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University , 44 Wenhua West Road, Jinan 250012, People's Republic of China
| | - Ming Zhang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University , 44 Wenhua West Road, Jinan 250012, People's Republic of China
| | - Rong-Xiu Zhu
- School of Chemistry and Chemical Engineering, Shandong University , 27 Shanda Nanlu, Jinan 250100, People's Republic of China
| | - Jiao-Zhen Zhang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University , 44 Wenhua West Road, Jinan 250012, People's Republic of China
| | - Fei Xie
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University , 44 Wenhua West Road, Jinan 250012, People's Republic of China
| | - Xiao-Bin Li
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University , 44 Wenhua West Road, Jinan 250012, People's Republic of China
| | - Wen-Qiang Chang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University , 44 Wenhua West Road, Jinan 250012, People's Republic of China
| | - Xiao-Ning Wang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University , 44 Wenhua West Road, Jinan 250012, People's Republic of China
| | - Zun-Tian Zhao
- College of Life Sciences, Shandong Normal University , 88 Wenhua East Road, Jinan 250014, People's Republic of China
| | - Hong-Xiang Lou
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University , 44 Wenhua West Road, Jinan 250012, People's Republic of China
| |
Collapse
|
20
|
Koizumi Y, Nagai K, Hasumi K, Kuba K, Sugiyama T. Structure-activity relationship of cyclic pentapeptide malformins as fibrinolysis enhancers. Bioorg Med Chem Lett 2016; 26:5267-5271. [PMID: 27680590 DOI: 10.1016/j.bmcl.2016.09.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 09/14/2016] [Accepted: 09/16/2016] [Indexed: 11/17/2022]
Abstract
The formation of blood clots in blood vessels causes severe ischemic diseases such as cerebral infarction and myocardial infarction. While searching for microbial products that increase fibrinolytic activity using an in vitro fibrin degradation assay, we found malformin A1, a disulfide form of cyclo(-d-Cys-d-Cys-l-Val-d-Leu-l-Ile-), as an active compound. In this study, we synthesized malformin derivatives using a solid-phase peptide synthesis method and evaluated their fibrinolytic activity and cytotoxicity. Reduction of the disulfide bond and linearization of the cyclic peptide frame decreased the pro-fibrinolytic activity. Substitution of a branched-chain amino acid with lysine resulted in loss of activity. However, protection of the amino group in the lysine derivatives by the tert-butoxycarbonyl (Boc) group rescued the inactivity. Furthermore, the phenylalanine derivatives also exhibited a similar pro-fibrinolytic effect compared to malformin A1. These results suggest that the disulfide bond, the cyclic peptide frame, and the bulky hydrophobic side chains play a crucial role in the pro-fibrinolytic activity of malformin. The effective dose of the active derivatives for the in vitro fibrin degradation showed similar ranges (1-5μM), while the order of cytotoxic potency for the active derivatives was as follows: Phe-derivatives>BocLys-derivatives>malformin A1>reduced form. These results showed no correlation between pro-fibrinolytic activity and cytotoxicity, suggesting the possibility of the synthesis for non-toxic malformin derivatives possessing the activity.
Collapse
Affiliation(s)
- Yukio Koizumi
- Department of Biochemistry, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan.
| | - Kenichiro Nagai
- School of Pharmaceutical Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Keiji Hasumi
- Department of Applied Biological Science, Tokyo Noko University, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan
| | - Keiji Kuba
- Department of Biochemistry, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Toshihiro Sugiyama
- Department of Biochemistry, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
| |
Collapse
|
21
|
Asperpyrone-Type Bis-Naphtho-γ-Pyrones with COX-2-Inhibitory Activities from Marine-Derived Fungus Aspergillus niger. Molecules 2016; 21:molecules21070941. [PMID: 27447606 PMCID: PMC6273789 DOI: 10.3390/molecules21070941] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 07/12/2016] [Accepted: 07/16/2016] [Indexed: 12/19/2022] Open
Abstract
Bis-naphtho-γ-pyrones (BNPs) are an important group of aromatic polyketides derived from fungi, and asperpyrone-type BNPs are produced primarily by Aspergillus species. The fungal strain Aspergillus niger SCSIO Jcsw6F30, isolated from a marine alga, Sargassum sp., and identified according to its morphological traits and the internal transcribed spacer (ITS) region sequence, was studied for BNPs secondary metabolisms. After HPLC/MS analysis of crude extract of the fermentation broth, 11 asperpyrone-type BNPs were obtained directly and quickly by chromatographic separation in the extract, and those isolated asperpyrone-type BNPs were structurally identified by NMR and MS analyses. All of the BNPs showed weak cytotoxicities against 10 human tumor cells (IC50 > 30 μM). However, three of them, aurasperone F (3), aurasperone C (6) and asperpyrone A (8), exhibited obvious COX-2–inhibitory activities, with the IC50 values being 11.1, 4.2, and 6.4 μM, respectively. This is the first time the COX-2–inhibitory activities of BNPs have been reported.
Collapse
|
22
|
Wang G, Fan JY, Zhang WJ, Hua CP, Chen CJ, Yan W, Ge HM, Jiao RH, Tan RX. Polyketides from mantis-associated fungus Daldinia eschscholzii IFB-TL01. Chem Biodivers 2016; 12:1349-55. [PMID: 26363879 DOI: 10.1002/cbdv.201400414] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Indexed: 11/05/2022]
Abstract
Three new polyketides, named daldinone F (1), nodulisporin G (2), and dalmanol C (3), together with five known compounds, 4-8, were isolated from cultures of Daldinia eschscholzii. The structures of the new compounds were elucidated by extensive NMR and MS analyses. Compound 1 showed moderate cytotoxic activity against SW480 cancer cells with an IC50 value of 9.59 μM, and its absolute configuration was determined by single crystal X-ray diffraction.
Collapse
Affiliation(s)
- Gang Wang
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P. R. China (phone/fax: +86-25-83593201)
| | - Jing-Yang Fan
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P. R. China (phone/fax: +86-25-83593201)
| | - Wen-Jing Zhang
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P. R. China (phone/fax: +86-25-83593201)
| | - Cheng-Pin Hua
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P. R. China (phone/fax: +86-25-83593201)
| | - Chao-Jun Chen
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P. R. China (phone/fax: +86-25-83593201)
| | - Wei Yan
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P. R. China (phone/fax: +86-25-83593201)
| | - Hui-Ming Ge
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P. R. China (phone/fax: +86-25-83593201)
| | - Rui-Hua Jiao
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P. R. China (phone/fax: +86-25-83593201).
| | - Ren-Xiang Tan
- Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, P. R. China (phone/fax: +86-25-83593201)
| |
Collapse
|
23
|
Xie F, Li XB, Zhou JC, Xu QQ, Wang XN, Yuan HQ, Lou HX. Secondary metabolites from Aspergillus fumigatus, an endophytic fungus from the liverwort Heteroscyphus tener (Steph.) Schiffn. Chem Biodivers 2016; 12:1313-21. [PMID: 26363876 DOI: 10.1002/cbdv.201400317] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Indexed: 01/05/2023]
Abstract
Three new metabolites, asperfumigatin (1), isochaetominine (10), and 8'-O-methylasterric acid (21), together with nineteen known compounds, were obtained from the culture of Aspergillus fumigatus, an endophytic fungus from the Chinese liverwort Heteroscyphus tener (Steph.) Schiffn. Their structures were established by extensive analysis of the spectroscopic data. The absolute configurations of 1 and 10 were determined by analysis of their respective CD spectra. Cytotoxicity of these isolates against four human cancer cell lines was also determined.
Collapse
Affiliation(s)
- Fei Xie
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, P. R. China (phone: +86-531-88382012; fax: +86-531-88382548)
| | - Xiao-Bin Li
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, P. R. China (phone: +86-531-88382012; fax: +86-531-88382548)
| | - Jin-Chuan Zhou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, P. R. China (phone: +86-531-88382012; fax: +86-531-88382548)
| | - Qing-Qing Xu
- Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University, No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Xiao-Ning Wang
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, P. R. China (phone: +86-531-88382012; fax: +86-531-88382548)
| | - Hui-Qing Yuan
- Department of Biochemistry and Molecular Biology, School of Medicine, Shandong University, No. 44 West Wenhua Road, Jinan 250012, P. R. China
| | - Hong-Xiang Lou
- Department of Natural Products Chemistry, Key Lab of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, P. R. China (phone: +86-531-88382012; fax: +86-531-88382548).
| |
Collapse
|
24
|
Fungal naphtho-γ-pyrones: Potent antibiotics for drug-resistant microbial pathogens. Sci Rep 2016; 6:24291. [PMID: 27063778 PMCID: PMC4827027 DOI: 10.1038/srep24291] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 03/24/2016] [Indexed: 12/26/2022] Open
Abstract
Four naphtho-γ-pyrones (fonsecinones A and C and aurasperones A and E) were identified as potential antibacterial agents against Escherichia coli, extended-spectrum β-lactamase (ESBL)-producing E. coli, Pseudomonas aeruginosa, Enterococcus faecalis, and methicillin-resistant Staphylococcus aureus (MRSA) in an in vitro antibacterial screen of 218 fungal metabolites. Fonsecinone A (2) exhibited the most potent antibacterial activity, with minimum inhibitory concentrations (MICs) of 4.26, 17.04, and 4.26 μg/mL against ESBL-producing E. coli, P. aeruginosa, and E. faecalis, respectively. The inhibitory effects of fonsecinones A (2) and C (3) against E. coli and ESBL-producing E. coli were comparable to those of amikacin. Molecular docking-based target identification of naphtho-γ-pyrones 1–8 revealed bacterial enoyl-acyl carrier protein reductase (FabI) as an antibacterial target, which was further validated by FabI affinity and inhibition assays. Fonsecinones A (2) and C (3) and aurasperones A (6) and E (7) bound FabI specifically and produced concentration-dependent inhibition effects. This work is the first report of anti-drug-resistant bacterial activities of naphtho-γ-pyrones 1–8 and their possible antibacterial mechanism of action and provides an example of the successful application of in silico methods for drug target identification and validation and the identification of new lead antibiotic compounds against drug-resistant pathogens.
Collapse
|
25
|
Malformin A1 promotes cell death through induction of apoptosis, necrosis and autophagy in prostate cancer cells. Cancer Chemother Pharmacol 2015; 77:63-75. [PMID: 26645406 DOI: 10.1007/s00280-015-2915-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 11/09/2015] [Indexed: 10/22/2022]
Abstract
PURPOSE Malformin A1 (MA1), a cyclopentapeptide isolated from fungal origin, has been identified to induce varieties of intriguing biological activities. Here, we reported the mode of mechanism underlying MA1-mediated cytotoxicity through induction of apoptosis, necrosis and autophagy in prostate cancer (PCa) cells. METHODS Human PCa cells PC3 and LNCaP were treated with MA1, and cell viability, apoptosis, necrosis, mitochondrial damage, oxidative stress and autophagy were analyzed, respectively. Pharmacological inhibitors, transient transfection of plasmids and siRNAs were then used to identify the roles of oxidative stress and autophagy in MA1-triggered cell death. RESULTS In both PC3 and LNCaP cells, MA1 inhibited cell proliferation and triggered oxidative stress via the rapid accumulation of reactive oxygen species and a decrease in mitochondrial transmembrane potential. Mitochondrial damage by MA1 triggered caspase activation and intracellular ATP deletion, leading to apoptosis and necrosis, respectively. Meanwhile, MA1 activated autophagy as indicated by conversion of LC3BI to LC3BII and increased GFP-tagged LC3B punctate dots. Pharmacological inhibition of autophagy or knocking down LC3B attenuated MA1-mediated cell death. Excessive oxidative stress and decreased ATP stimulated AMPK/mTOR pathway, which led to induction of MA1-mediated autophagy. CONCLUSIONS Coaction of apoptotic, necrotic and autophagic cell death induced by mitochondrial damage defines a novel mechanism contributing to the growth suppression of MA1 in prostate cancer cells, and activation of autophagy might be a potential strategy for improving its chemotherapeutic effects.
Collapse
|
26
|
Mou Y, Xu D, Mao Z, Dong X, Lin F, Wang A, Lai D, Zhou L, Xie B. Enhancement of Palmarumycin C12 and C13 Production by the Endophytic Fungus Berkleasmium sp. Dzf12 in an Aqueous-Organic Solvent System. Molecules 2015; 20:20320-33. [PMID: 26569213 PMCID: PMC6331930 DOI: 10.3390/molecules201119700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 11/04/2015] [Accepted: 11/05/2015] [Indexed: 12/30/2022] Open
Abstract
The endophytic fungus Berkleasmium sp. Dzf12, isolated from Dioscorea zingiberensis, was found to produce palmarumycins C12 and C13 which possess a great variety of biological activities. Seven biocompatible water-immiscible organic solvents including n-dodecane, n-hexadecane, 1-hexadecene, liquid paraffin, dibutyl phthalate, butyl oleate and oleic acid were evaluated to improve palmarumycins C12 and C13 production in suspension culture of Berkleasmium sp. Dzf12. Among the chosen solvents both butyl oleate and liquid paraffin were the most effective to improve palmarumycins C12 and C13 production. The addition of dibutyl phthalate, butyl oleate and oleic acid to the cultures of Berkleasmium sp. Dzf12 significantly enhanced palmarumycin C12 production by adsorbing palmarumycin C12 into the organic phase. When butyl oleate was fed at 5% (v/v) in medium at the beginning of fermentation (day 0), the highest palmarumycin C12 yield (191.6 mg/L) was achieved, about a 34.87-fold increase in comparison with the control (5.3 mg/L). n-Dodecane, 1-hexadecene and liquid paraffin had a great influence on the production of palmarumycin C13. When liquid paraffin was added at 10% (v/v) in medium on day 3 of fermentation, the palmarumycin C13 yield reached a maximum value (134.1 mg/L), which was 4.35-fold that of the control (30.8 mg/L). Application of the aqueous-organic solvent system should be a simple and efficient process strategy for enhancing palmarumycin C12 and C13 production in liquid cultures of the endophytic fungus Berkleasmium sp. Dzf12.
Collapse
Affiliation(s)
- Yan Mou
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Dan Xu
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Ziling Mao
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Xuejiao Dong
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Fengke Lin
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Ali Wang
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Daowan Lai
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Ligang Zhou
- Department of Plant Pathology, College of Agronomy and Biotechnology, China Agronomy and Biotechnology, Beijing 100193, China.
| | - Bingyan Xie
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| |
Collapse
|
27
|
Anti-TMV activity of malformin A1, a cyclic penta-peptide produced by an endophytic fungus Aspergillus tubingensis FJBJ11. Int J Mol Sci 2015; 16:5750-61. [PMID: 25775156 PMCID: PMC4394503 DOI: 10.3390/ijms16035750] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 03/03/2015] [Accepted: 03/07/2015] [Indexed: 11/17/2022] Open
Abstract
Plant-associated microorganisms are known to produce a variety of metabolites with novel structures and interesting biological activities. An endophytic fungus FJBJ11, isolated from the plant tissue of Brucea javanica (L.) Merr. (Simaroubaceae), was proven to be significantly effective in producing metabolites with anti-Tobacco mosaic virus (TMV) activities. The isolate was identified as Aspergillus tubingensis FJBJ11 based on morphological characteristics and ITS sequence. Bioassay-guided isolation led to the identification of a cycli penta-peptide, malformin A1, along with two cyclic dipeptides, cyclo (Gly-l-Pro) and cyclo (Ala-Leu). Malformin A1 showed potent inhibitory effect against the infection and replication of TMV with IC50 values of 19.7 and 45.4 μg·mL−1, as tested using local lesion assay and leaf-disc method, respectively. The results indicated the potential use of malformin A1 as a leading compound or a promising candidate of new viricide.
Collapse
|
28
|
Choque E, El Rayess Y, Raynal J, Mathieu F. Fungal naphtho-γ-pyrones—secondary metabolites of industrial interest. Appl Microbiol Biotechnol 2014; 99:1081-96. [DOI: 10.1007/s00253-014-6295-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 12/02/2014] [Accepted: 12/04/2014] [Indexed: 01/08/2023]
|
29
|
Li XB, Li YL, Zhou JC, Yuan HQ, Wang XN, Lou HX. A new diketopiperazine heterodimer from an endophytic fungus Aspergillus niger. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2014; 17:182-187. [PMID: 25401948 DOI: 10.1080/10286020.2014.959939] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 08/26/2014] [Indexed: 06/04/2023]
Abstract
One new diketopiperazine heterodimer, asperazine A (1), and eight known compounds, asperazine (2), cyclo(d-Phe-l-Trp) (3), cyclo(l-Trp-l-Trp) (4), 4-(hydroxymethyl)-5,6-dihydro-pyran-2-one (5), walterolactone A (6), and campyrones A-C (7-9), were isolated from an endophytic fungus Aspergillus niger. Their structures were determined unequivocally on the basis of extensive spectroscopic data analysis. This is the first report of the presence of compound 3 as a natural product. Cytotoxicity test against human cancer cell lines PC3, A2780, K562, MBA-MD-231, and NCI-H1688 revealed that compounds 1 and 2 had weak activities.
Collapse
Affiliation(s)
- Xiao-Bin Li
- a Department of Natural Products Chemistry , Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Science, Shandong University , Jinan 250012 , China
| | | | | | | | | | | |
Collapse
|
30
|
Isolation and identification of an endophytic fungus Pezicula sp. in Forsythia viridissima and its secondary metabolites. World J Microbiol Biotechnol 2014; 30:2639-44. [DOI: 10.1007/s11274-014-1686-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 06/04/2014] [Indexed: 10/25/2022]
|
31
|
Soltani J, Moghaddam MSH. Diverse and bioactive endophytic Aspergilli inhabit Cupressaceae plant family. Arch Microbiol 2014; 196:635-44. [PMID: 24912659 DOI: 10.1007/s00203-014-0997-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 05/14/2014] [Accepted: 05/16/2014] [Indexed: 01/16/2023]
Abstract
Aspergilli are filamentous, cosmopolitan and ubiquitous fungi which have significant impact on human, animal and plant welfare worldwide. Due to their extraordinary metabolic diversity, Aspergillus species are used in biotechnology for the production of a vast array of biomolecules. However, little is known about Aspergillus species that are able to adapt an endophytic lifestyle in Cupressaceae plant family and are capable of producing cytotoxic, antifungal and antibacterial metabolites. In this work, we report a possible ecological niche for pathogenic fungi such as Aspergillus fumigatus and Aspergillus flavus. Indeed, our findings indicate that A. fumigatus, A. flavus, Aspergillus niger var. niger and A. niger var. awamori adapt an endophytic lifestyle inside the Cupressaceous plants including Cupressus arizonica, Cupressus sempervirens var. fastigiata, Cupressus semipervirens var. cereiformis, and Thuja orientalis. In addition, we found that extracts of endophytic Aspergilli showed significant growth inhibition and cytotoxicity against the model fungus Pyricularia oryzae and bacteria such as Bacillus sp., Erwinia amylovora and Pseudomonas syringae. These endophytic Aspergilli also showed in vitro antifungal effects on the cypress fungal phytopathogens including Diplodia seriata, Phaeobotryon cupressi and Spencermartinsia viticola. In conclusion, our findings clearly support the endophytic association of Aspergilli with Cupressaceae plants and their possible role in protection of host plants against biotic stresses. Observed bioactivities of such endophytic Aspergilli may represent a significant potential for bioindustry and biocontrol applications.
Collapse
Affiliation(s)
- Jalal Soltani
- Phytopathology Department, Bu-Ali Sina University, Hamedan, Iran,
| | | |
Collapse
|
32
|
Bis-naphtho-γ-pyrones from fungi and their bioactivities. Molecules 2014; 19:7169-88. [PMID: 24886942 PMCID: PMC6270783 DOI: 10.3390/molecules19067169] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 05/23/2014] [Accepted: 05/27/2014] [Indexed: 11/17/2022] Open
Abstract
Bis-naphtho-γ-pyrones are an important group of aromatic polyketides derived from fungi. They have a variety of biological activities including cytotoxic, antitumor, antimicrobial, tyrosine kinase and HIV-1 integrase inhibition properties, demonstrating their potential applications in medicine and agriculture. At least 59 bis-naphtho-γ-pyrones from fungi have been reported in the past few decades. This mini-review aims to briefly summarize their occurrence, biosynthesis, and structure, as well as their biological activities. Some considerations regarding to synthesis, production, and medicinal and agricultural applications of bis-naphtho-γ-pyrones are also discussed.
Collapse
|
33
|
Xiao J, Zhang Q, Gao YQ, Shi XW, Gao JM. Antifungal and antibacterial metabolites from an endophyticAspergillussp. associated withMelia azedarach. Nat Prod Res 2014; 28:1388-92. [DOI: 10.1080/14786419.2014.904308] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|