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Khadem S, Marles RJ. Natural 3,4-dihydro-2(1 h)-quinolinones- Part II: animal, bacterial, and fungal sources. Nat Prod Res 2024:1-14. [PMID: 38564663 DOI: 10.1080/14786419.2024.2324377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 02/23/2024] [Indexed: 04/04/2024]
Abstract
While natural products have undoubtedly played a pivotal role in drug discovery, their potential as lead compounds has been hindered by challenges such as limited accessibility and complex synthesis processes. At the core of numerous natural and synthetic compounds, each exhibiting remarkable biological traits, lies the foundational structure of 3,4-dihydro-2(1H)-quinolinone, also recognised as 2-oxo-tetrahydroquinoline (2 O-THQ). This article extensively examines the occurrence of 2 O-THQ alkaloids across diverse organisms including animals, fungi, and bacteria, exploring their capacity to serve as a source for innovative bioactive natural products. Despite the undeniable significance of these compounds, the existing body of review literature has yet to provide comprehensive coverage, underscoring the pivotal contribution of this present article in investigating their prevalence in nature.
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Affiliation(s)
- Shahriar Khadem
- Safe Environments Directorate, Healthy Environments and Consumer Safety Branch, Ottawa, Health Canada, Canada
| | - Robin J Marles
- Retired Senior Scientific Advisor, Ottawa, Health Canada, Canada
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2
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Gribble GW. A Survey of Recently Discovered Naturally Occurring Organohalogen Compounds. JOURNAL OF NATURAL PRODUCTS 2024. [PMID: 38375796 DOI: 10.1021/acs.jnatprod.3c00803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
The discovery of naturally occurring organohalogen compounds has increased astronomically in the 55 years since they were first discovered─from fewer than 50 in 1968 to a combined 7,958 described examples in three comprehensive reviews. The present survey, which covers the period 2021-2023, brings the number of known natural organohalogens to approximately 8,400. The organization is according to species origin, and coverage includes marine and terrestrial plants, fungi, bacteria, marine sponges, corals, cyanobacteria, tunicates, and other marine organisms.
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Affiliation(s)
- Gordon W Gribble
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
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3
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Chen Y, He Y, Pang X, Zhou X, Liu Y, Yang B. Secondary Metabolites from the Coral-Derived Fungus Aspergillus austwickii SCSIO41227 with Pancreatic Lipase and Neuraminidase Inhibitory Activities. Mar Drugs 2023; 21:567. [PMID: 37999391 PMCID: PMC10672402 DOI: 10.3390/md21110567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 10/27/2023] [Accepted: 10/27/2023] [Indexed: 11/25/2023] Open
Abstract
The coral-derived fungus Aspergillus austwickii SCSIO41227 from Beibu Gulf yielded four previously uncharacterized compounds, namely asperpentenones B-E (1-4), along with twelve known compounds (5-16). Their structures were elucidated using HRESIMS and NMR (1H and 13C NMR, HSQC, HMBC), among which the stereo-structure of compounds 1-3 was determined by calculated ECD. Furthermore, compounds 1-16 were evaluated in terms of their enzyme (acetylcholinesterase (AChE), pancreatic lipase (PL), and neuraminidase (NA)) inhibitory activities. These bioassay results revealed that compounds 2 and 14 exerted noticeable NA inhibitory effects, with IC50 values of 31.28 and 73.64 μM, respectively. In addition, compound 3 exhibited a weak inhibitory effect against PL. Furthermore, these compounds showed the potential of inhibiting enzymes in silico docking analysis to demonstrate the interactions between compounds and proteins.
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Affiliation(s)
- Ying Chen
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (Y.C.); (Y.H.); (X.P.); (X.Z.)
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Yanchun He
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (Y.C.); (Y.H.); (X.P.); (X.Z.)
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Xiaoyan Pang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (Y.C.); (Y.H.); (X.P.); (X.Z.)
| | - Xuefeng Zhou
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (Y.C.); (Y.H.); (X.P.); (X.Z.)
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Yonghong Liu
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (Y.C.); (Y.H.); (X.P.); (X.Z.)
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Bin Yang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (Y.C.); (Y.H.); (X.P.); (X.Z.)
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
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Yang B, Li C, Chen Y, He Y, She J, Zhou X, Tao H, Peng B. Arthproliferins A-D, Four New Sesterterpenes from the Mangrove-Sediment-Derived Fungus Arthrinium sp. SCSIO41221. Molecules 2023; 28:7246. [PMID: 37959666 PMCID: PMC10648114 DOI: 10.3390/molecules28217246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/23/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Four new sesterterpenes, arthproliferins A-D (1-4), together with four known derivatives, were isolated and characterized from the mangrove-sediment-derived fungus Arthrinium sp. SCSIO41221. Their structures were determined using detailed nuclear magnetic resonance (NMR) and mass spectroscopic (MS) analyses. Some of the isolated compounds were evaluated for their cytotoxicity in vitro. The results revealed that terpestacin (6) exhibited significant activity with an IC50 value of 20.3 μM, and compounds 2 and 5 were found to show weak inhibitory effects against U87MG-derived GSCs.
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Affiliation(s)
- Bin Yang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (Y.C.); (Y.H.); (J.S.); (X.Z.)
| | - Cuitian Li
- Marine Environmental Engineering Center, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510515, China;
| | - Ying Chen
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (Y.C.); (Y.H.); (J.S.); (X.Z.)
| | - Yanchun He
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (Y.C.); (Y.H.); (J.S.); (X.Z.)
| | - Jianglian She
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (Y.C.); (Y.H.); (J.S.); (X.Z.)
| | - Xuefeng Zhou
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (Y.C.); (Y.H.); (J.S.); (X.Z.)
| | - Huangming Tao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China;
| | - Bo Peng
- Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
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5
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Li X, Shen W, Li G, Song Y, Lu X, Wong NK, Yan Y. Alternaphenol B2, a new IDH1 inhibitor from the coral-derived fungus Parengyodontium album SCSIO SX7W11. Nat Prod Res 2023:1-7. [PMID: 37850447 DOI: 10.1080/14786419.2023.2269462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 09/28/2023] [Indexed: 10/19/2023]
Abstract
A new aromatic polyketide, alternaphenol B2 (1), and four known compounds (2-5) were isolated from the coral-derived fungus Parengyodontium album SCSIO SX7W11. Their structures were elucidated by high-resolution mass spectrometry, 1D and 2D NMR spectroscopy and comparison with reported literatures. Compounds 1 and 2 exhibited selective inhibitory activity against isocitrate dehydrogenase mutant R132H (IDH1m), with IC50 values of 41.9 and 27.7 μM, respectively. Our findings thus provide a fresh incentive for investigation on IDH1m inhibitors as lead compounds for cancer treatment.
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Affiliation(s)
- Xiaoyue Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangzhou, China
- College of Oceanology, University of Chinese Academy of Sciences, Qingdao, China
| | - Wenbin Shen
- New Drug Research and Development Center of North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering and Research Center, Hebei Industry Microbial Metabolic Engineering and Technology Research Center, Key Laboratory for New Drug Screening Technology of Shijiazhuang City, Shijiazhuang, Hebei, China
| | - Guochao Li
- New Drug Research and Development Center of North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering and Research Center, Hebei Industry Microbial Metabolic Engineering and Technology Research Center, Key Laboratory for New Drug Screening Technology of Shijiazhuang City, Shijiazhuang, Hebei, China
| | - Yongxiang Song
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangzhou, China
- College of Oceanology, University of Chinese Academy of Sciences, Qingdao, China
| | - Xinhua Lu
- New Drug Research and Development Center of North China Pharmaceutical Group Corporation, National Microbial Medicine Engineering and Research Center, Hebei Industry Microbial Metabolic Engineering and Technology Research Center, Key Laboratory for New Drug Screening Technology of Shijiazhuang City, Shijiazhuang, Hebei, China
| | - Nai-Kei Wong
- Clinical Pharmacology Section, Department of Pharmacology, Shantou University Medical College, Shantou, China
| | - Yan Yan
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangzhou, China
- College of Oceanology, University of Chinese Academy of Sciences, Qingdao, China
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6
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Li H, Fu Y, Song F. Marine Aspergillus: A Treasure Trove of Antimicrobial Compounds. Mar Drugs 2023; 21:md21050277. [PMID: 37233471 DOI: 10.3390/md21050277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/22/2023] [Accepted: 04/25/2023] [Indexed: 05/27/2023] Open
Abstract
Secondary metabolites from marine organisms are diverse in structure and function. Marine Aspergillus is an important source of bioactive natural products. We reviewed the structures and antimicrobial activities of compounds isolated from different marine Aspergillus over the past two years (January 2021-March 2023). Ninety-eight compounds derived from Aspergillus species were described. The chemical diversity and antimicrobial activities of these metabolites will provide a large number of promising lead compounds for the development of antimicrobial agents.
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Affiliation(s)
- Honghua Li
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education of China, School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Yanqi Fu
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education of China, School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Fuhang Song
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education of China, School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
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Lin M, Tang Z, Wang J, Lu H, Wang C, Zhang Y, Liu X, Gao C, Liu Y, Luo X. An epipolythiodioxopiperazine alkaloid and diversified aromatic polyketides with cytotoxicity from the Beibu Gulf coral-derived fungus Emericella nidulans GXIMD 02509. J Zhejiang Univ Sci B 2023; 24:275-280. [PMID: 36916003 PMCID: PMC10014321 DOI: 10.1631/jzus.b2200622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Marine microorganisms, especially marine fungi, have historically proven their value as a prolific source for structurally novel and pharmacologically active secondary metabolites (Deshmukh et al., 2018; Carroll et al., 2022). The corals constitute a dominant part of reefs with the highest biodiversity, and harbor highly diverse and abundant microbial symbionts in their tissue, skeleton, and mucus layer, with species-specific core members that are spatially partitioned across coral microhabitats (Wang WQ et al., 2022). The coral-associated fungi were very recently found to be vital producers of structurally diverse compounds, terpenes, alkaloids, peptides, aromatics, lactones, and steroids. They demonstrate a wide range of bioactivity such as anticancer, antimicrobial, and antifouling activity (Chen et al., 2022). The genetically powerful genus Emericella (Ascomycota), which has marine and terrestrial sources, includes over 30 species and is distributed worldwide. It is considered a rich source of diverse secondary metabolites with antimicrobial activity or cytotoxicity (Alburae et al., 2020). Notably, Emericella nidulans, the sexual state of a classic biosynthetic strain Aspergillus nidulans, was recently reported as an important source of highly methylated polyketides (Li et al., 2019) and isoindolone-containing meroterpenoids (Zhou et al., 2016) with unusual skeletons.
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Affiliation(s)
- Miaoping Lin
- Institute of Marine Drugs, Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Zhenzhou Tang
- Institute of Marine Drugs, Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Jiaxi Wang
- Institute of Marine Drugs, Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Humu Lu
- Institute of Marine Drugs, Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Chenwei Wang
- Institute of Marine Drugs, Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Yanting Zhang
- Institute of Marine Drugs, Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Xinming Liu
- Institute of Marine Drugs, Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Chenghai Gao
- Institute of Marine Drugs, Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Yonghong Liu
- Institute of Marine Drugs, Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Xiaowei Luo
- Institute of Marine Drugs, Guangxi Key Laboratory of Marine Drugs, Guangxi University of Chinese Medicine, Nanning 530200, China.
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8
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Absolute Stereochemistry Determination of Bioactive Marine-Derived Cyclopeptides by Liquid Chromatography Methods: An Update Review (2018-2022). MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020615. [PMID: 36677673 PMCID: PMC9867211 DOI: 10.3390/molecules28020615] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023]
Abstract
Cyclopeptides are considered as one of the most important classes of compounds derived from marine sources, due to their structural diversity and a myriad of their biological and pharmacological activities. Since marine-derived cyclopeptides consist of different amino acids, many of which are non-proteinogenic, they possess various stereogenic centers. In this respect, the structure elucidation of new molecular scaffolds obtained from natural sources, including marine-derived cyclopeptides, can become a very challenging task. The determination of the absolute configurations of the amino acid residues is accomplished, in most cases, by performing acidic hydrolysis, followed by analyses by liquid chromatography (LC). In a continuation with the authors' previous publication, and to analyze the current trends, the present review covers recently published works (from January 2018 to November 2022) regarding new cyclopeptides from marine organisms, with a special focus on their biological/pharmacological activities and the absolute stereochemical assignment of the amino acid residues. Ninety-one unreported marine-derived cyclopeptides were identified during this period, most of which displayed anticancer or antimicrobial activities. Marfey's method, which involves LC, was found to be the most frequently used for this purpose.
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