1
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Qin F, Song ZS, Luo L, Bo XL, Wu FR, Tan MJ, Wang FF, Huang XS, Wang HS. Diisoprenyl Cyclohexene-Type Meroterpenoids with Cytotoxic Activity from a Mangrove Endophytic Fungus Aspergillus sp. GXNU-Y85. Mar Drugs 2024; 22:58. [PMID: 38393029 PMCID: PMC10890295 DOI: 10.3390/md22020058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
Five new diisoprenyl cyclohexene-type meroterpenoids, aspergienynes J-N (1-5), along with three known analogues (6-8), were obtained from the mangrove endophytic fungal strain Aspergillus sp. GXNU-Y85. The chemical structures, including their absolute configurations, were established via spectroscopic data and comparison of experimental and calculated ECD spectra. Cytotoxicity assay results indicated that compound 8 had strong cytotoxicity against HeLa cancer cells, and its IC50 value was 11.8 μM. In addition, flow cytometry analysis revealed that the cytotoxicity of 8 was due to the induction of G1 cell cycle arrest and apoptosis in HeLa cells.
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Affiliation(s)
- Feng Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.Q.); (Z.-S.S.); (L.L.); (X.-L.B.); (F.-R.W.); (M.-J.T.)
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China;
| | - Zi-Shuo Song
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.Q.); (Z.-S.S.); (L.L.); (X.-L.B.); (F.-R.W.); (M.-J.T.)
| | - Li Luo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.Q.); (Z.-S.S.); (L.L.); (X.-L.B.); (F.-R.W.); (M.-J.T.)
| | - Xiang-Long Bo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.Q.); (Z.-S.S.); (L.L.); (X.-L.B.); (F.-R.W.); (M.-J.T.)
| | - Fu-Rong Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.Q.); (Z.-S.S.); (L.L.); (X.-L.B.); (F.-R.W.); (M.-J.T.)
| | - Mei-Jing Tan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.Q.); (Z.-S.S.); (L.L.); (X.-L.B.); (F.-R.W.); (M.-J.T.)
| | - Fan-Fan Wang
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China;
| | - Xi-Shan Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.Q.); (Z.-S.S.); (L.L.); (X.-L.B.); (F.-R.W.); (M.-J.T.)
| | - Heng-Shan Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources/Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; (F.Q.); (Z.-S.S.); (L.L.); (X.-L.B.); (F.-R.W.); (M.-J.T.)
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2
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Bo X, Zhao Y, Qin F, Wu F, Tan M, Ju S, Song Z, Li W, He F, Wei Y, Xu H, Huang X. Cytotoxic metabolites from the mangrove endophytic fungus Aspergillus sp. GXNU QG1a. Nat Prod Res 2024:1-8. [PMID: 38226421 DOI: 10.1080/14786419.2024.2303601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 01/02/2024] [Indexed: 01/17/2024]
Abstract
A new benzoquinone, guxiumasperone A (1), and a new diisoprenyl-cyclohexene-type meroterpenoids, biscognienyne M (2), along with four known diisoprenyl-cyclohexene analogues was isolated from the mangrove endophytic fungus Aspergillus QG1a. Their structures were determined by extensive spectral analysis of 1D and 2D NMR, HR-ESI- MS, and X-ray crystallography. Compound 1 was deduced by a single-crystal X-ray diffraction analysis, and the absolute configuration of 2 was further unequivocally elucidated by comparing the experimental electronic circular dichroism (ECD) data with calculated ECD spectra. Compounds 1 and 2 showed significant cytotoxic activity against selected tumour cells. Particularly, compound 2 exhibited strong activity against A2780 cancer cells with an IC50 value of 6.8 μM.
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Affiliation(s)
- Xianglong Bo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Yufei Zhao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Feng Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Furong Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Meijing Tan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Shichao Ju
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Zishuo Song
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Wenjun Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Fan He
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Youquan Wei
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Hua Xu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Xishan Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
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3
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Wang G, Yuan Y, Li Z, Zhu J, She Z, Chen Y. Cytosporones with Anti-Inflammatory Activities from the Mangrove Endophytic Fungus Phomopsis sp. QYM-13. Mar Drugs 2023; 21:631. [PMID: 38132952 PMCID: PMC10745014 DOI: 10.3390/md21120631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
Six previously undescribed cytosporone derivatives (phomotones A-E (1-5) and phomotone F (13)), two new spiro-alkanol phombistenes A-B (14-15), and seven known analogs (6-12) were isolated from the mangrove endophytic fungus Phomopsis sp. QYM-13. The structures of these compounds were elucidated using spectroscopic data analysis, electronic circular dichroism (ECD), and 13C NMR calculations. Compound 14 features an unprecedented 1,6-dioxaspiro[4.5]decane ring system. All isolates were evaluated for their inhibitory effect on nitric oxide (NO) in LPS-induced RAW264.7 cells. The results showed that compounds 1, 6, 8, and 11 exhibited potent bioactivities by comparing with positive control. Then, compound 1 displayed the anti-inflammatory effect by inhibiting the MAPK/NF-κB signaling pathways. Molecular docking further revealed the possible mechanism of compound 1 interaction with ERK protein.
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Affiliation(s)
- Guisheng Wang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; (G.W.); (Z.L.); (J.Z.)
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Yilin Yuan
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng 475004, China;
| | - Zhaokun Li
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; (G.W.); (Z.L.); (J.Z.)
| | - Junhao Zhu
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; (G.W.); (Z.L.); (J.Z.)
| | - Zhigang She
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Yan Chen
- School of Pharmacy, Anhui Medical University, Hefei 230032, China; (G.W.); (Z.L.); (J.Z.)
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4
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Yin Y, Tan Q, Wu J, Chen T, Yang W, She Z, Wang B. The Polyketides with Antimicrobial Activities from a Mangrove Endophytic Fungus Trichoderma lentiforme ML-P8-2. Mar Drugs 2023; 21:566. [PMID: 37999390 PMCID: PMC10672575 DOI: 10.3390/md21110566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 11/25/2023] Open
Abstract
Five new polyketides, including two chromones (1-2), two phenyl derivatives (4-5), and a tandyukusin derivative (6), along with five known polyketides (3 and 7-10) were isolated from mangrove endophytic fungus Trichoderma lentiforme ML-P8-2. The planar structures of compounds were elucidated via detailed 1D, 2D NMR, and HR-ESI-MS analysis. ECD spectra, optical rotation values calculation, and alkali hydrolysis were applied in the determination of the absolute configuration of the new compounds. In bioassays, 6 and 9 exhibited promising antifungal activities against Penicillium italicum, with an MIC value of 6.25 μM for both compounds. Moreover, 3 displayed moderate AChE inhibitory activity with an IC50 value of 20.6 ± 0.3 μM.
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Affiliation(s)
| | | | | | | | | | | | - Bo Wang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China; (Y.Y.); (Q.T.); (J.W.); (T.C.); (W.Y.); (Z.S.)
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5
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Li J, Chen T, Yu J, Jia H, Chen C, Long Y. New Sorbicillinoids from the Mangrove Endophytic Fungus Trichoderma reesei SCNU-F0042. Mar Drugs 2023; 21:442. [PMID: 37623722 PMCID: PMC10455806 DOI: 10.3390/md21080442] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/03/2023] [Accepted: 08/03/2023] [Indexed: 08/26/2023] Open
Abstract
Three new dimeric sorbicillinoids (1-3) and one new 3,4,6-trisubstituted α-pyrone (5), along with seven analogues (4 and 6-11), were isolated from the mangrove endophytic fungus Trichoderma reesei SCNU-F0042 under the guidance of molecular networking approach. Their chemical structures were established by 1D and 2D NMR HR-ESI-MS and ECD analysis. In a bioassay, compound 2 exhibited moderate SARS-CoV-2 inhibitory activity with an EC50 value of 29.0 μM.
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Affiliation(s)
- Jialin Li
- GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, School of Chemistry, South China Normal University, Guangzhou 510006, China; (J.L.); (T.C.); (H.J.); (C.C.)
| | - Tao Chen
- GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, School of Chemistry, South China Normal University, Guangzhou 510006, China; (J.L.); (T.C.); (H.J.); (C.C.)
| | - Jianchen Yu
- Key Laboratory of Tropical Disease Control, Ministry of Education, Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China;
| | - Hao Jia
- GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, School of Chemistry, South China Normal University, Guangzhou 510006, China; (J.L.); (T.C.); (H.J.); (C.C.)
| | - Chen Chen
- GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, School of Chemistry, South China Normal University, Guangzhou 510006, China; (J.L.); (T.C.); (H.J.); (C.C.)
| | - Yuhua Long
- GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, School of Chemistry, South China Normal University, Guangzhou 510006, China; (J.L.); (T.C.); (H.J.); (C.C.)
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6
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Liu Y, Xue X, Zhou L, Yang W, She Z, Liao Q, Feng Y, Chen X, Zhang Y. Quinolinones Alkaloids with AChE Inhibitory Activity from Mangrove Endophytic Fungus Penicillium citrinum YX-002. Chem Biodivers 2023; 20:e202300735. [PMID: 37423890 DOI: 10.1002/cbdv.202300735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 07/11/2023]
Abstract
Acetylcholinesterase (AChE) inhibitory activity-guided studies on the mangrove-derived endophytic fungus Penicillium citrinum YX-002 led to the isolation of nine secondary metabolites, including one new quinolinone derivative, quinolactone A (1), a pair of epimers quinolactacin C1 (2) and 3-epi-quinolactacin C1 (3), together with six known analogs (4-9). Their structures were elucidated based on extensive mass spectrometry (MS) and 1D/2D nuclear magnetic resonance (NMR) spectroscopic analyses, and compared with data in the literature. The absolute configurations of compounds 1-3 was determined by combination of electronic circular dichroism (ECD) calculations and X-Ray single crystal diffraction technique using CuKα radiation. In bioassays, compounds 1, 4 and 7 showed moderate AChE inhibitory activities with IC50 values of 27.6, 19.4 and 11.2 μmol/L, respectively. The structure-activity relationships (SARs) analysis suggested that the existence of carbonyl group on C-3 and the oxygen atom on the five-membered ring were beneficial to the activity. Molecular docking results showed that compound 7 had a lower affinity interaction energy (-9.3 kcal/mol) with stronger interactions with different sites in AChE activities, which explained its higher activities.
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Affiliation(s)
- Yayue Liu
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang Municipal Key Laboratory of Marine Drugs and Nutrition for Brain Health, Research Institute for Marine Drugs and Nutrition, Shenzhen Institute of Guangdong Ocean University, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524088, P. R. China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Xinyi Xue
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang Municipal Key Laboratory of Marine Drugs and Nutrition for Brain Health, Research Institute for Marine Drugs and Nutrition, Shenzhen Institute of Guangdong Ocean University, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524088, P. R. China
| | - Longjian Zhou
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang Municipal Key Laboratory of Marine Drugs and Nutrition for Brain Health, Research Institute for Marine Drugs and Nutrition, Shenzhen Institute of Guangdong Ocean University, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524088, P. R. China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034, P. R. China
| | - Wencong Yang
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Zhigang She
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Qingnan Liao
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang Municipal Key Laboratory of Marine Drugs and Nutrition for Brain Health, Research Institute for Marine Drugs and Nutrition, Shenzhen Institute of Guangdong Ocean University, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524088, P. R. China
| | - Yunkai Feng
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang Municipal Key Laboratory of Marine Drugs and Nutrition for Brain Health, Research Institute for Marine Drugs and Nutrition, Shenzhen Institute of Guangdong Ocean University, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524088, P. R. China
| | - Xiaokun Chen
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang Municipal Key Laboratory of Marine Drugs and Nutrition for Brain Health, Research Institute for Marine Drugs and Nutrition, Shenzhen Institute of Guangdong Ocean University, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524088, P. R. China
| | - Yi Zhang
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang Municipal Key Laboratory of Marine Drugs and Nutrition for Brain Health, Research Institute for Marine Drugs and Nutrition, Shenzhen Institute of Guangdong Ocean University, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, 524088, P. R. China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, 116034, P. R. China
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7
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Shao Z, Tian Y, Liu S, Chu X, Mao W. Anti-Diabetic Activity of a Novel Exopolysaccharide Produced by the Mangrove Endophytic Fungus Penicillium janthinellum N29. Mar Drugs 2023; 21:md21050270. [PMID: 37233464 DOI: 10.3390/md21050270] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/27/2023] Open
Abstract
Marine microorganisms often produce exopolysaccharides with novel structures and diverse biological activities due to their specific marine environment. The novel active exopolysaccharides from marine microorganisms have become an important research area in new drug discovery, and show enormous development prospects. In the present study, a homogeneous exopolysaccharide from the fermented broth of the mangrove endophytic fungus Penicillium janthinellum N29, designated as PJ1-1, was obtained. The results of chemical and spectroscopic analyses showed that PJ1-1 was a novel galactomannan with a molecular weight of about 10.24 kDa. The backbone of PJ1-1 was composed of →2)-α-d-Manp-(1→, →4)-α-d-Manp-(1→, →3)-β-d-Galf-(1→ and →2)-β-d-Galf-(1→ units with partial glycosylation at C-3 of →2)-β-d-Galf-(1→ unit. PJ1-1 had a strong hypoglycemic activity in vitro, evaluated using the assay of α-glucosidase inhibition. The anti-diabetic effect of PJ1-1 in vivo was further investigated using mice with type 2 diabetes mellitus induced by a high-fat diet and streptozotocin. The results indicated that PJ1-1 markedly reduced blood glucose level and improved glucose tolerance. Notably, PJ1-1 increased insulin sensitivity and ameliorated insulin resistance. Moreover, PJ1-1 significantly decreased the levels of serum total cholesterol, triglyceride and low-density lipoprotein cholesterol, enhanced the level of serum high-density lipoprotein cholesterol and alleviated dyslipidemia. These results revealed that PJ1-1 could be a potential source of anti-diabetic agent.
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Affiliation(s)
- Zhuling Shao
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Yingying Tian
- Marine Biomedical Research Institute of Qingdao, Qingdao 266237, China
| | - Shan Liu
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Xiao Chu
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Wenjun Mao
- Key Laboratory of Marine Drugs of Ministry of Education, Shandong Provincial Key Laboratory of Glycoscience and Glycotechnology, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
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8
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Feng A, Zhang W, Wang L, Zhou J, Chen J, Xu X, Huang X, Huang J. A new chromone derivative from an endophytic Aspergillus sp. GXNU-B1. Nat Prod Res 2023:1-6. [PMID: 36815551 DOI: 10.1080/14786419.2023.2181805] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/03/2023] [Accepted: 02/14/2023] [Indexed: 02/24/2023]
Abstract
A new chromone derivative, aspergione A (1), along with seven known metabolites, was isolated from a mangrove endophytic fungus, Aspergillus sp. GXNU-B1, which was collected from mangrove Acanthus ilicifolius L. Their structures and the absolute configuration of 1 were elucidated based on the analysis of HR-ESI-MS, NMR, and ECD calculation. Compounds 1-8 were evaluated for their anti-inflammatory effects on the production of nitricoxide (NO). Compounds 1 and 8 have potent inhibitory effects against NO production in activated macrophages with IC50 values of 38.26 and 44.30 μM, respectively.
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Affiliation(s)
- Aijuan Feng
- School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangdong Engineering Technical Research Center for Green Household Chemicals, Guangzhou, China
| | - Wenxiu Zhang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P. R. China
| | - Lixia Wang
- School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangdong Engineering Technical Research Center for Green Household Chemicals, Guangzhou, China
| | - Junqiang Zhou
- School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangdong Engineering Technical Research Center for Green Household Chemicals, Guangzhou, China
| | - Jinwei Chen
- School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangdong Engineering Technical Research Center for Green Household Chemicals, Guangzhou, China
| | - Xiaoyun Xu
- School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangdong Engineering Technical Research Center for Green Household Chemicals, Guangzhou, China
| | - Xishan Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P. R. China
| | - Jiguo Huang
- School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangdong Engineering Technical Research Center for Green Household Chemicals, Guangzhou, China
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9
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Abstract
A new lactone, asperlactone A (1), and four known lactone derivatives 2-5 were isolated from the mangrove endophytic fungus Aspergillus sp. GXNU-A9. Their structures were elucidated based on high-resolution electrospray ionization mass spectrometry (HR-ESI-MS) datum, extensive nuclear magnetic resonance (NMR) spectroscopic analysis, and comparison with literature data. The structure of 1 was further confirmed by single-crystal X-ray diffraction analysis, and the absolute configuration of 1 was established. Compounds 1-5 were evaluated for their anti-inflammatory activities against nitric oxide (NO) production, and compounds 1-5 showed moderate inhibitory activities with IC50 values ranging from 15.87 to 30.48 µM.
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Affiliation(s)
- Wenxiu Zhang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P. R. China
| | - Lili Hao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P. R. China
| | - Xiaoya Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P. R. China
| | - Jiguo Huang
- Guangdong Industry Polytechnic, Guangzhou, P. R. China
| | - Ruiyun Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P. R. China
| | - Jun Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P. R. China
| | - Xishan Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P. R. China
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10
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Tan Q, Yang W, Zhu G, Chen T, Wu J, Zhu Y, Wang B, Yuan J, She Z. A Pair of Chromone Epimers and an Acetophenone Glucoside from the Mangrove Endophytic Fungus Mycosphaerella sp. L3A1. Chem Biodivers 2022; 19:e202200998. [PMID: 36318651 DOI: 10.1002/cbdv.202200998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/01/2022] [Indexed: 11/18/2022]
Abstract
Three new compounds, including a pair of chromone derivatives (1-2), and an acetophenone glucoside (3), together with three known compounds (4-6), were isolated from the mangrove endophytic fungus Mycosphaerella sp. L3A1. Their structures were elucidated by HR-ESI-MS analysis and extensive spectroscopic data. The absolute configurations of new compounds were determined using single-crystal X-ray diffraction analysis, electronic circular dichroism (ECD) calculations and chemical hydrolysis. In bioassays, compound 4 showed moderate cytotoxic activity against MDA-MB-435, HCT116, and SNB19 with IC50 values in the range of 18.5-26.29 μM.
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Affiliation(s)
- Qi Tan
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Wencong Yang
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Ge Zhu
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, P. R. China
| | - Tao Chen
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Jun Wu
- Guangdong Key Laboratory of Natural Medicine Research and Development & College of Pharmacy, Guangdong Medical University, Dongguan, 523808, P. R. China
| | - Yujia Zhu
- School of Public Health, Sun Yat-sen University, Guangzhou, 510080, P. R. China
| | - Bo Wang
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Jie Yuan
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, P. R. China
| | - Zhigang She
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
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11
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Huang J, Bo X, Wu F, Tan M, Wei Y, Wang L, Zhou J, Wu G, Huang X. Asperphenyltones A and B: New Phenylfuropyridinone Skeleton from an Endophytic Aspergillus sp. GXNU-A1. Molecules 2022; 27:molecules27238160. [PMID: 36500252 PMCID: PMC9737011 DOI: 10.3390/molecules27238160] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/17/2022] [Accepted: 11/22/2022] [Indexed: 11/25/2022] Open
Abstract
Chemical investigation of the fermentation extract of the mangrove endophytic fungus Aspergillus sp. GXNU-A1, isolated from Acanthus ilicifolius L., discovered an undescribed pair of enantiomers (asperphenyltones A and B (±1)), together with four previously described metabolites: nodulisporol (2), isosclerone (3), 2,3,4-trihydroxy-6-(hydroxymethyl)-5-methylbenzyl alcohol (4), and 4,6-dihydroxy-5-methoxy-7-methyl-1,3-dihydroisobenzofuran (5). Analyses of the 1D and 2D NMR spectroscopic data of the compounds supported their structural assignments. The presence of the asperphenyltones A and B, which are a pair of enantiomers, was established by HR-ESI-MS, 1D and 2D NMR data and confirmed by single-crystal X-ray diffraction analysis. Metabolites 1-5 were evaluated for their anti-inflammatory effects on the production of nitric oxide (NO), and 1, 3, and 4 showed significant potential inhibitory activities against NO production in activated macrophages with IC50 values of 26-40 μM, respectively.
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Affiliation(s)
- Jiguo Huang
- School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangdong Engineering Technical Research Center for Green Household Chemicals, Guangzhou 510275, China
| | - Xianglong Bo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541000, China
| | - Furong Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541000, China
| | - Meijing Tan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541000, China
| | - Youquan Wei
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541000, China
| | - Lixia Wang
- School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangdong Engineering Technical Research Center for Green Household Chemicals, Guangzhou 510275, China
| | - Junqiang Zhou
- School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangdong Engineering Technical Research Center for Green Household Chemicals, Guangzhou 510275, China
| | - Guiming Wu
- School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangdong Engineering Technical Research Center for Green Household Chemicals, Guangzhou 510275, China
| | - Xishan Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541000, China
- Correspondence: ; Tel.: +86-773-2120958
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12
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Liu Y, Yang W, Liao Q, She Z. Pyrone Derivatives from a Mangrove Endophytic Fungus Phomopsis asparagi LSLYZ-87. Chem Biodivers 2022; 19:e202200491. [PMID: 35707944 DOI: 10.1002/cbdv.202200491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 06/15/2022] [Indexed: 01/07/2023]
Abstract
Chemical investigation of the endophytic fungus Phomopsis asparagi LSLYZ-87 cultured on PDB medium led to the isolation of two new pyrone derivatives, phomasparapyrone A (1), and phomasparapyrone B (2), together with the known kojic acid (3). Their planar structures were connected through 1D and 2D NMR spectroscopic data. And the stereo structures of 1 and 2 were defined by comparison of the experimental ECD spectra to calculated one. All isolates were evaluated for their anti-neuroinflammatory activities. Among them, compound 2 showed moderate inhibition on NO accumulation induced by LPS on BV-2 cells in a dose dependent manner at 30, 40 and 50 μM, and without cytotoxicity in a concentration of 50.0 μM.
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Affiliation(s)
- Yayue Liu
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang Municipal Key Laboratory of Marine Drugs and Nutrition for Brain Health, Research Institute for Marine Drugs and Nutrition, Guangdong Ocean University, Zhanjiang, 524088, P. R. China
| | - Wencong Yang
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Qingnan Liao
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang Municipal Key Laboratory of Marine Drugs and Nutrition for Brain Health, Research Institute for Marine Drugs and Nutrition, Guangdong Ocean University, Zhanjiang, 524088, P. R. China
| | - Zhigang She
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
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13
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Wang G, Yin Z, Wang S, Yuan Y, Chen Y, Kang W. Diversified Polyketides With Anti-inflammatory Activities From Mangrove Endophytic Fungus Daldinia eschscholtzii KBJYZ-1. Front Microbiol 2022; 13:900227. [PMID: 35620105 PMCID: PMC9127611 DOI: 10.3389/fmicb.2022.900227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 04/04/2022] [Indexed: 11/13/2022] Open
Abstract
In total, five new polyketide derivatives: eschscholin B (2), dalditone A and B (3 and 4), (1R, 4R)-5-methoxy-1,2,3,4-tetrahydronaphthalene-1,4-dio (5), and daldilene A (6), together with 10 known as analogs (1, 7-15) were isolated from the mangrove endophytic fungus Daldinia eschscholtzii KBJYZ-1. Their structures and absolute configurations were established by extensive analysis of NMR and HRESIMS spectra data combined with ECD calculations and the reported literature. Compounds 2 and 6 showed significant cell-based anti-inflammatory activities with IC50 values of 19.3 and 12.9 μM, respectively. In addition, western blot results suggested that compound 2 effectively inhibits the expression of iNOS and COX-2 in LPS-induced RAW264.7 cells. Further molecular biology work revealed the potential mechanism of 2 exerts anti-inflammatory function by inactivating the MAPK and NF-κB signaling pathways.
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Affiliation(s)
- Guisheng Wang
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
| | - Zhenhua Yin
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
| | - Senye Wang
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
| | - Yilin Yuan
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China
| | - Yan Chen
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China.,Joint International Research Laboratory of Food and Medicine Resource Function, Kaifeng, China
| | - Wenyi Kang
- National R&D Center for Edible Fungus Processing Technology, Henan University, Kaifeng, China.,Joint International Research Laboratory of Food and Medicine Resource Function, Kaifeng, China.,Kaifeng Key Laboratory of Functional Components in Health Food, Kaifeng, China
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14
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Zang Z, Yang W, Cui H, Cai R, Li C, Zou G, Wang B, She Z. Two Antimicrobial Heterodimeric Tetrahydroxanthones with a 7,7'-Linkage from Mangrove Endophytic Fungus Aspergillus flavus QQYZ. Molecules 2022; 27:molecules27092691. [PMID: 35566042 PMCID: PMC9103106 DOI: 10.3390/molecules27092691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/15/2022] [Accepted: 04/15/2022] [Indexed: 11/25/2022] Open
Abstract
Mangrove endophytic fungi represent significant and sustainable sources of novel metabolites with unique structures and excellent biological activities, attracting extensive chemical investigations. In this research, two novel heterodimeric tetrahydroxanthones, aflaxanthones A (1) and B (2), dimerized via an unprecedented 7,7′-linkage, a sp3-sp3 dimeric manner, were isolated from the mangrove endophytic fungus Aspergillus flavus QQYZ. Their structures were elucidated through high resolution electrospray ionization mass spectroscopy (HRESIMS) and nuclear magnetic resonance (NMR) spectroscopy, the absolute configurations of them were determined by a single-crystal X-ray diffraction combined with calculated electronic circular dichroism (ECD) spectra and a 1D potential energy scan. These compounds were evaluated for antifungal activities in vitro and exhibited broad-spectrum and potential antifungal activities against several pathogenic fungi with minimum inhibitory concentration (MIC) values in the range of 3.13–50 μM. They also performed moderate antibacterial activities against several bacteria with MIC values in the range of 12.5–25 μM. This research enriched the resources of lead compounds and templates for marine-derived antimicrobial drugs.
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Affiliation(s)
- Zhenming Zang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (Z.Z.); (W.Y.); (G.Z.)
| | - Wencong Yang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (Z.Z.); (W.Y.); (G.Z.)
| | - Hui Cui
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China;
| | - Runlin Cai
- College of Science, Shantou University, Shantou 515063, China;
| | - Chunyuan Li
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China;
| | - Ge Zou
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (Z.Z.); (W.Y.); (G.Z.)
| | - Bo Wang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (Z.Z.); (W.Y.); (G.Z.)
- Correspondence: (B.W.); (Z.S.); Tel.: +86-20-84113356 (Z.S.)
| | - Zhigang She
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (Z.Z.); (W.Y.); (G.Z.)
- Correspondence: (B.W.); (Z.S.); Tel.: +86-20-84113356 (Z.S.)
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15
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Qin X, Huang J, Zhou D, Zhang W, Zhang Y, Li J, Yang R, Huang X. Polyketide Derivatives, Guhypoxylonols A-D from a Mangrove Endophytic Fungus Aspergillus sp. GXNU-Y45 That Inhibit Nitric Oxide Production. Mar Drugs 2021; 20:md20010005. [PMID: 35049860 PMCID: PMC8778885 DOI: 10.3390/md20010005] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 12/23/2022] Open
Abstract
Four undescribed compounds, guhypoxylonols A (1), B (2), C (3), and D (4), were isolated from the mangrove endophytic fungus Aspergillus sp. GXNU-Y45, together with seven previously reported metabolites. The structures of 1-4 were elucidated based on analysis of HRESIMS and NMR spectroscopic data. The absolute configurations of the stereogenic carbons in 1-3 were established through a combination of spectroscopic data and electronic circular dichroism (ECD). Compounds 1-11 were evaluated for their anti-inflammatory activity. Compounds 1, 3, 4, and 6 showed an inhibitory activity against the production of nitric oxide (NO), with the IC50 values of 14.42 ± 0.11, 18.03 ± 0.14, 16.66 ± 0.21, and 21.05 ± 0.13 μM, respectively.
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Affiliation(s)
- Xiaoya Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541005, China; (X.Q.); (D.Z.); (W.Z.); (J.L.)
| | - Jiguo Huang
- School of Chemical Engineering and Technology, Guangdong Industry Polytechnic, Guangzhou 510300, China;
| | - Dexiong Zhou
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541005, China; (X.Q.); (D.Z.); (W.Z.); (J.L.)
| | - Wenxiu Zhang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541005, China; (X.Q.); (D.Z.); (W.Z.); (J.L.)
| | - Yanjun Zhang
- Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, Beibu Gulf University, Qinzhou 535011, China;
| | - Jun Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541005, China; (X.Q.); (D.Z.); (W.Z.); (J.L.)
| | - Ruiyun Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541005, China; (X.Q.); (D.Z.); (W.Z.); (J.L.)
- Correspondence: (R.Y.); (X.H.); Tel.: +86-77-3212-0958 (X.H.)
| | - Xishan Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541005, China; (X.Q.); (D.Z.); (W.Z.); (J.L.)
- Correspondence: (R.Y.); (X.H.); Tel.: +86-77-3212-0958 (X.H.)
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16
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Zou G, Tan Q, Chen Y, Yang W, Zang Z, Jiang H, Chen S, Wang B, She Z. Furobenzotropolones A, B and 3-Hydroxyepicoccone B with Antioxidative Activity from Mangrove Endophytic Fungus Epicoccum nigrum MLY-3. Mar Drugs 2021; 19:395. [PMID: 34356820 DOI: 10.3390/md19070395] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/12/2021] [Accepted: 07/12/2021] [Indexed: 12/28/2022] Open
Abstract
Three new metabolites, furobenzotropolones A, B (1–2) with unusual benzene and dihydrofuran moieties and 3-hydroxyepicoccone B (3), together with seven known compounds (4–10) were obtained from the endophytic fungus Epicoccum nigrum MLY-3 isolated from the fresh leaf of mangrove plant Bruguiear gymnorrhiza collected from Zhuhai. Their structures were assigned by the analysis of UV, IR, NMR, and mass spectroscopic data. Compound 1 was further confirmed by single-crystal X-ray diffraction experiment using Cu Kα radiation. In antioxidant activities in vitro, compounds 2, 3, 5, and 8 showed promising DPPH· scavenging activity with IC50 values ranging from 14.7 to 29.3 µM. Compounds 2, 3, 5, 7, and 8 exhibited promising potent activity in scavenging ABTS· with IC50 values in the range of 18–29.2 µM, which was stronger than that of the positive control ascorbic acid (IC50 = 33.6 ± 0.8 µM).
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17
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Chen Y, Zou G, Yang W, Zhao Y, Tan Q, Chen L, Wang J, Ma C, Kang W, She Z. Metabolites with Anti-Inflammatory Activity from the Mangrove Endophytic Fungus Diaporthe sp. QYM12. Mar Drugs 2021; 19:56. [PMID: 33498874 DOI: 10.3390/md19020056] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 12/25/2022] Open
Abstract
One new diterpenoid, diaporpenoid A (1), two new sesquiterpenoids, diaporpenoids B–C (2,3) and three new α-pyrone derivatives, diaporpyrones A–C (4–6) were isolated from an MeOH extract obtained from cultures of the mangrove endophytic fungus Diaporthe sp. QYM12. Their structures were elucidated by extensive analysis of spectroscopic data. The absolute configurations were determined by electronic circular dichroism (ECD) calculations and a comparison of the specific rotation. Compound 1 had an unusual 5/10/5-fused tricyclic ring system. Compounds 1 and 4 showed potent anti-inflammatory activities by inhibiting the production of nitric oxide (NO) in lipopolysaccharide (LPS)-induced RAW264.7 cells with IC50 values of 21.5 and 12.5 μM, respectively.
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18
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Abstract
A new tetracyclic depsidone derivative, guanxidone A (1), together with three known metabolites 2-4, was isolated from the mangrove endophytic fungus Aspergillus sp. GXNU-A9. The structure of compound 1 was established by HR-ESI-MS, 1 D and 2 D NMR data, as well as by comparison with literature data. Compounds 1-4 were evaluated for their anti-inflammatory effects on the production of the nitric oxide (NO), and compound 1 significantly reduced the production of NO in lipopolysaccharide (LPS)-stimulated cells with IC50 value of 8.22 µM.
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Affiliation(s)
- Lili Hao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Dexiong Zhou
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Xiaoya Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Wenxiu Zhang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Ruiyun Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Jun Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
| | - Xishan Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P.R. China
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19
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Yang W, Chen Y, Cai R, Zou G, Wang B, She Z. Benzopyran Derivatives and an Aliphatic Compound from a Mangrove Endophytic Fungus Penicillium citrinum QJF-22. Chem Biodivers 2020; 17:e2000192. [PMID: 32267070 DOI: 10.1002/cbdv.202000192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 04/07/2020] [Indexed: 12/18/2022]
Abstract
Two new benzopyran derivatives, (2R,4S)-5-methoxy-2-methyl-3,4-dihydro-2H-1-benzopyran-4-ol and (2S,4R,2'S,4'R)-4,4'-oxybis(5-methoxy-2-methyl-3,4-dihydro-2H-1-benzopyran), and a new aliphatic compound, (3E,5Z,8S,10E)-8-hydroxytrideca-3,5,10,12-tetraen-2-one, together with three known benzopyran derivatives, were obtained from a mangrove endophytic fungus Penicillium citrinum QJF-22 collected in Hainan island. Their structures were determined by analysis of spectroscopic data and the relative configuration of (2R,4S)-5-methoxy-2-methyl-3,4-dihydro-2H-1-benzopyran-4-ol was also confirmed by single-crystal X-ray diffraction. The absolute configurations of four compounds were established by comparison of ECD spectra to calculations. The configuration of (3E,5Z,8S,10E)-8-hydroxytrideca-3,5,10,12-tetraen-2-one was confirmed by comparison of optical value to the similar compound. The configurations of the compounds (2S,4S)-5-methoxy-2-methyl-3,4-dihydro-2H-1-benzopyran-4-ol and (2R,4R)-5-methoxy-2-methyl-3,4-dihydro-2H-1-benzopyran-4-ol were first determined. (3R,4S)-3,4,8-Trihydroxy-3,4-dihydronaphthalen-1(2H)-one exhibited moderate inhibitory effects on LPS-induced NO production in RAW264.7 cells with IC50 of 44.7 μM, and without cytotoxicity to RAW264.7 cells within 50 μM.
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Affiliation(s)
- Wencong Yang
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yan Chen
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China.,School of Marine Sciences, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Runlin Cai
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Ge Zou
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Bo Wang
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Zhigang She
- School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China.,Southern Marine Science and Engineering Guangdong Laboratory, Sun Yat-Sen University, Zhuhai, 519082, P. R. China
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20
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Wu Y, Chen Y, Huang X, Pan Y, Liu Z, Yan T, Cao W, She Z. α-Glucosidase Inhibitors: Diphenyl Ethers and Phenolic Bisabolane Sesquiterpenoids from the Mangrove Endophytic Fungus Aspergillus flavus QQSG-3. Mar Drugs 2018; 16:md16090307. [PMID: 30200400 PMCID: PMC6165285 DOI: 10.3390/md16090307] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 08/27/2018] [Accepted: 08/29/2018] [Indexed: 02/04/2023] Open
Abstract
Two new diphenyl ethers (1 and 2) and four new phenolic bisabolane sesquiterpenoids (3–6), together with five known related derivatives, were isolated from the culture of the endophytic fungus Aspergillus flavus QQSG-3 obtained from a fresh branch of Kandelia obobata, which was collected from Huizhou city in the province of Guangdong, China. The structures of compounds 1–6 were determined by analyzing NMR and HRESIMS data. The absolute configurations of 5 and 6 were assigned by comparing their experimental ECD spectra with those reported for similar compounds in the literature. All isolates were evaluated for their α-glucosidase inhibitory activity, of which compounds 3, 5, 10, and 11 showed strong inhibitory effects with IC50 values in the range of 1.5–4.5 μM.
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Affiliation(s)
- Yingnan Wu
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Yan Chen
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Xishan Huang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Yahong Pan
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Zhaoming Liu
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.
- State Key Laboratory of Applied Microbiology, Southern China, Guangdong Institute of Microbiology, Guangzhou 510075, China.
| | - Tao Yan
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
| | - Wenhao Cao
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
| | - Zhigang She
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China.
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
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Li W, Xiong P, Zheng W, Zhu X, She Z, Ding W, Li C. Identification and Antifungal Activity of Compounds from the Mangrove Endophytic Fungus Aspergillus clavatus R7. Mar Drugs 2017; 15:md15080259. [PMID: 28825634 PMCID: PMC5577613 DOI: 10.3390/md15080259] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 08/17/2017] [Indexed: 11/24/2022] Open
Abstract
Two new coumarin derivatives, 4,4′-dimethoxy-5,5′-dimethyl-7,7′-oxydicoumarin (1), 7-(γ,γ-dimethylallyloxy)-5-methoxy-4-methylcoumarin (2), a new chromone derivative, (S)-5-hydroxy-2,6-dimethyl-4H-furo[3,4-g]benzopyran-4,8(6H)-dione (5), and a new sterone derivative, 24-hydroxylergosta-4,6,8(14),22-tetraen-3-one (6), along with two known bicoumarins, kotanin (3) and orlandin (4), were isolated from an endophytic fungus Aspergillusclavatus (collection No. R7), isolated from the root of Myoporum bontioides collected from Leizhou Peninsula, China. Their structures were elucidated using 1D- and 2D- NMR spectroscopy, and HRESIMS. The absolute configuration of compound 5 was determined by comparison of the experimental and calculated electronic circular dichroism (ECD) spectra. Compound 6 significantly inhibited the plant pathogenic fungi Fusarium oxysporum, Colletotrichum musae and Penicillium italicum, compound 5 significantly inhibited Colletotrichum musae, and compounds 1, 3 and 4 greatly inhibited Fusarium oxysporum, showing the antifungal activities higher than those of the positive control, triadimefon.
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Affiliation(s)
- Wensheng Li
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
| | - Ping Xiong
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
| | - Wenxu Zheng
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
| | - Xinwei Zhu
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
| | - Zhigang She
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Weijia Ding
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
| | - Chunyuan Li
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
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Zhang L, Niaz SI, Khan D, Wang Z, Zhu Y, Zhou H, Lin Y, Li J, Liu L. Induction of Diverse Bioactive Secondary Metabolites from the Mangrove Endophytic Fungus Trichoderma sp. (Strain 307) by Co-Cultivation with Acinetobacter johnsonii (Strain B2). Mar Drugs 2017; 15:E35. [PMID: 28208607 DOI: 10.3390/md15020035] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 01/19/2017] [Accepted: 01/23/2017] [Indexed: 12/21/2022] Open
Abstract
Two new sesquiterpenes, microsphaeropsisin B (1) and C (2), and two new de-O-methyllasiodiplodins, (3R, 7R)-7-hydroxy-de-O-methyllasiodiplodin (4) and (3R)-5-oxo-de-O-methyllasiodiplodin (5), together with one new natural product (6) and twelve known compounds (3, 7-17), were isolated from the co-cultivation of mangrove endophytic fungus Trichoderma sp. 307 and aquatic pathogenic bacterium Acinetobacter johnsonii B2. Their structures, including absolute configurations, were elucidated by extensive analysis of spectroscopic data, electronic circular dichroism, Mo₂(AcO)₄-induced circular dichroism, and comparison with reported data. All of the isolated compounds were tested for their α-glucosidase inhibitory activity and cytotoxicity. New compounds 4 and 5 exhibited potent α-glucosidase inhibitory activity with IC50 values of 25.8 and 54.6 µM, respectively, which were more potent than the positive control (acarbose, IC50 = 703.8 µM). The good results of the tested bioactivity allowed us to explore α-glucosidase inhibitors in lasiodiplodins.
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