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Ge R, Guo X, Jia H, Zhang J, Fan A, Liu D, Huang J, Lin W. Nucleobase-Coupled Xanthones with Anti-ROS Effects from Marine-Derived Fungus Aspergillus sydowii. J Org Chem 2024. [PMID: 38768258 DOI: 10.1021/acs.joc.4c00367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
A MS/MS-based molecular networking approach compared to the Global Natural Product Social Molecular Networking library, in association with genomic annotation of natural product biosynthetic gene clusters within a marine-derived fungus, Aspergillus sydowii, identified a suite of xanthone metabolites. Chromatographic techniques applied to the cultured fungus led to the isolation of 11 xanthone-based alkaloids, dubbed sydoxanthones F-M. The structures of these alkaloids were elucidated using extensive spectroscopic data, including electronic circular dichroism and single-crystal X-ray diffraction data for configurational assignments. Among these analogues, sydoxanthones F-K exhibit structure features typical of nucleobase-coupled xanthones, with sydoxanthone H being an N-bonded xanthone dimer. Notably, (±)sydoxanthones F (1a/1b), (±)sydoxanthones H (3b/3a), and (±)sydoxanthones J (5b/5a) are enantiomeric pairs, while sydoxanthones G (2), I (4), and K (6) are stereoisomers of 1, 3, and 5, respectively. Furthermore, (+)sydoxanthone H (3a) demonstrated significant rescue of cell viability in H2O2-injuried SH-SY5Y cells by inhibiting reactive oxygen species production, suggesting its potential for neuroprotection.
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Affiliation(s)
- Rui Ge
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, P. R. China
| | - Xingchen Guo
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, P. R. China
| | - Hongli Jia
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, P. R. China
| | - Jing Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, P. R. China
| | - Aili Fan
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, P. R. China
| | - Dong Liu
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, P. R. China
| | - Jian Huang
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, P. R. China
| | - Wenhan Lin
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, P. R. China
- Ningbo Institute of Marine Medicine, Peking University, Beijing 100191, P. R. China
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Eissa AH, Abdel-Tawab AM, El-Ablack FZ, Ayyad SEN. Cytotoxic and anti-bacterial evaluation of two new aromatic A-ring steroids isolated from the Red Sea soft coral Dendronephthya spp.. Nat Prod Res 2023:1-9. [PMID: 37665217 DOI: 10.1080/14786419.2023.2254452] [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: 06/09/2023] [Revised: 08/07/2023] [Accepted: 08/29/2023] [Indexed: 09/05/2023]
Abstract
A successful column chromatography of a CHCl3/MeOH crude extract of Dendronephthya spp. soft coral led to the isolation of two new aromatic A-ring steroids (1-2), together with three known compounds (3-5). Both 1 and 2 are 19-norsteroids. The chemical structures were elucidated based on extensive 1D, 2D NMR, and EIMS analyses. In cytotoxic bioassays, compounds 1-5 were tested against three cancer cell lines: MCF-7, NCI-1299, and HepG2, with IC50 in the ranges of 22.1-85.4, 26.9-88.7, and 25.9-93.7 μM, respectively. Compounds 1, 2, and 5 showed moderate degrees of inhibition against Escherichia coli and Pseudomonas sp. at 100 and 150 µg/mL, while exhibiting weak inhibition against Bacillus cereus and Staphylococcus aureus at 150 µg/mL.
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Affiliation(s)
- Ahmed H Eissa
- Department of Chemistry, Faculty of Science, Damietta University, New Damietta, Egypt
| | - Asmaa M Abdel-Tawab
- Marine Biotechnology and Natural Products Laboratory, National Institute of Oceanography and Fisheries, Cairo, Egypt
| | - Fawzia Z El-Ablack
- Department of Chemistry, Faculty of Science, Damietta University, New Damietta, Egypt
| | - Seif-Eldin N Ayyad
- Department of Chemistry, Faculty of Science, Damietta University, New Damietta, Egypt
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Katanaev VL. Humanization for neurological disease modeling: A roadmap to increase the potential of Drosophila model systems. Animal Model Exp Med 2023; 6:230-236. [PMID: 37323110 PMCID: PMC10272901 DOI: 10.1002/ame2.12322] [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: 01/11/2023] [Accepted: 04/03/2023] [Indexed: 06/17/2023] Open
Abstract
Neuroscience and neurology research is dominated by experimentation with rodents. Around 75% of neurology disease-associated genes have orthologs in Drosophila melanogaster, the fruit fly amenable to complex neurological and behavioral investigations. However, non-vertebrate models including Drosophila have so far been unable to significantly replace mice and rats in this field of studies. One reason for this situation is the predominance of gene overexpression (and gene loss-of-function) methodologies used when establishing a Drosophila model of a given neurological disease, a strategy that does not recapitulate accurately enough the genetic disease conditions. I argue here the need for a systematic humanization approach, whereby the Drosophila orthologs of human disease genes are replaced with the human sequences. This approach will identify the list of diseases and the underlying genes that can be adequately modeled in the fruit fly. I discuss the neurological disease genes to which this systematic humanization approach should be applied and provide an example of such an application, and consider its importance for subsequent disease modeling and drug discovery in Drosophila. I argue that this paradigm will not only advance our understanding of the molecular etiology of a number of neurological disorders, but will also gradually enable researchers to reduce experimentation using rodent models of multiple neurological diseases and eventually replace these models.
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Affiliation(s)
- Vladimir L. Katanaev
- Department of Cell Physiology and Metabolism, Faculty of MedicineUniversity of GenevaGenevaSwitzerland
- HumanaFly Facility, Faculty of MedicineUniversity of GenevaGenevaSwitzerland
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Klimenko A, Huber R, Marcourt L, Tabakaev D, Koval A, Dautov SS, Dautova TN, Wolfender JL, Thew R, Khotimchenko Y, Queiroz EF, Katanaev VL. Shallow- and Deep-Water Ophiura Species Produce a Panel of Chlorin Compounds with Potent Photodynamic Anticancer Activities. Antioxidants (Basel) 2023; 12:antiox12020386. [PMID: 36829945 PMCID: PMC9952619 DOI: 10.3390/antiox12020386] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/29/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023] Open
Abstract
A Pacific brittle star Ophiura sarsii has previously been shown to produce a chlorin (3S,4S)-14-Ethyl-9-(hydroxymethyl)-4,8,13,18-tetramethyl-20-oxo-3-phorbinepropanoic acid (ETPA) (1) with potent phototoxic activities, making it applicable to photodynamic therapy. Using extensive LC-MS metabolite profiling, molecular network analysis, and targeted isolation with de novo NMR structure elucidation, we herein identify five additional chlorin compounds from O. sarsii and its deep-sea relative O. ooplax: 10S-Hydroxypheophorbide a (2), Pheophorbide a (3), Pyropheophorbide a (4), (3S,4S,21R)-14-Ethyl-9-(hydroxymethyl)-21-(methoxycarbonyl)-4,8,13,18-tetramethyl-20-oxo-3-phorbinepropanoic acid (5), and (3S,4S,21R)-14-Ethyl-21-hydroxy-9-(hydroxymethyl)-4,8,13,18-tetramethyl-20-oxo-3-phorbinepropanoic acid (6). Chlorins 5 and 6 have not been previously reported in natural sources. Interestingly, low amounts of chlorins 1-4 and 6 could also be identified in a distant species, the basket star Gorgonocephalus cf. eucnemis, demonstrating that chlorins are produced by a wide spectrum of marine invertebrates of the class Ophiuroidea. Following the purification of these major Ophiura chlorin metabolites, we discovered the significant singlet oxygen quantum yield upon their photoinduction and the resulting phototoxicity against triple-negative breast cancer BT-20 cells. These studies identify an arsenal of brittle star chlorins as natural photosensitizers with potential photodynamic therapy applications.
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Affiliation(s)
- Antonina Klimenko
- Translational Research Center in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, Rue Michel-Servet 1, CH-1206 Geneva, Switzerland
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 690090 Vladivostok, Russia
| | - Robin Huber
- School of Pharmaceutical Sciences, University of Geneva, Rue Michel-Servet 1, CH-1206 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Rue Michel-Servet 1, CH-1206 Geneva, Switzerland
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, Rue Michel-Servet 1, CH-1206 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Rue Michel-Servet 1, CH-1206 Geneva, Switzerland
| | - Dmitry Tabakaev
- Department of Applied Physics, Faculty of Sciences, University of Geneva, Rue de l’Ecole-De-Médecine 20, CH-1205 Geneva, Switzerland
| | - Alexey Koval
- Translational Research Center in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, Rue Michel-Servet 1, CH-1206 Geneva, Switzerland
| | - Salim Sh. Dautov
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far East Branch of Russian Academy of Sciences, Palchevsky St. 17, 690041 Vladivostok, Russia
| | - Tatyana N. Dautova
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far East Branch of Russian Academy of Sciences, Palchevsky St. 17, 690041 Vladivostok, Russia
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, Rue Michel-Servet 1, CH-1206 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Rue Michel-Servet 1, CH-1206 Geneva, Switzerland
- Correspondence: (J.-L.W.); (E.F.Q.); (V.L.K.)
| | - Rob Thew
- Department of Applied Physics, Faculty of Sciences, University of Geneva, Rue de l’Ecole-De-Médecine 20, CH-1205 Geneva, Switzerland
| | - Yuri Khotimchenko
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 690090 Vladivostok, Russia
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far East Branch of Russian Academy of Sciences, Palchevsky St. 17, 690041 Vladivostok, Russia
| | - Emerson Ferreira Queiroz
- School of Pharmaceutical Sciences, University of Geneva, Rue Michel-Servet 1, CH-1206 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Rue Michel-Servet 1, CH-1206 Geneva, Switzerland
- Correspondence: (J.-L.W.); (E.F.Q.); (V.L.K.)
| | - Vladimir L. Katanaev
- Translational Research Center in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, Rue Michel-Servet 1, CH-1206 Geneva, Switzerland
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, 690090 Vladivostok, Russia
- Correspondence: (J.-L.W.); (E.F.Q.); (V.L.K.)
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Hu D, Jin Y, Hou X, Zhu Y, Chen D, Tai J, Chen Q, Shi C, Ye J, Wu M, Zhang H, Lu Y. Application of Marine Natural Products against Alzheimer's Disease: Past, Present and Future. Mar Drugs 2023; 21:md21010043. [PMID: 36662216 PMCID: PMC9867307 DOI: 10.3390/md21010043] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/12/2022] [Accepted: 12/30/2022] [Indexed: 01/08/2023] Open
Abstract
Alzheimer's disease (AD), a neurodegenerative disease, is one of the most intractable illnesses which affects the elderly. Clinically manifested as various impairments in memory, language, cognition, visuospatial skills, executive function, etc., the symptoms gradually aggravated over time. The drugs currently used clinically can slow down the deterioration of AD and relieve symptoms but cannot completely cure them. The drugs are mainly acetylcholinesterase inhibitors (AChEI) and non-competitive N-methyl-D-aspartate receptor (NDMAR) antagonists. The pathogenesis of AD is inconclusive, but it is often associated with the expression of beta-amyloid. Abnormal deposition of amyloid and hyperphosphorylation of tau protein in the brain have been key targets for past, current, and future drug development for the disease. At present, researchers are paying more and more attention to excavate natural compounds which can be effective against Alzheimer's disease and other neurodegenerative pathologies. Marine natural products have been demonstrated to be the most prospective candidates of these compounds, and some have presented significant neuroprotection functions. Consequently, we intend to describe the potential effect of bioactive compounds derived from marine organisms, including polysaccharides, carotenoids, polyphenols, sterols and alkaloids as drug candidates, to further discover novel and efficacious drug compounds which are effective against AD.
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Affiliation(s)
- Di Hu
- Collaborative Innovation Center of Seafood Deep Processing, Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Yating Jin
- Collaborative Innovation Center of Seafood Deep Processing, Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Xiangqi Hou
- Hangzhou WeChampion Biotech. Inc., Hangzhou 310030, China
| | - Yinlong Zhu
- Zhejiang Chiral Medicine Chemicals Co., Ltd., Hangzhou 311227, China
| | - Danting Chen
- Collaborative Innovation Center of Seafood Deep Processing, Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Jingjing Tai
- Collaborative Innovation Center of Seafood Deep Processing, Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Qianqian Chen
- Collaborative Innovation Center of Seafood Deep Processing, Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Cui Shi
- Collaborative Innovation Center of Seafood Deep Processing, Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Jing Ye
- Collaborative Innovation Center of Seafood Deep Processing, Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Mengxu Wu
- Hangzhou WeChampion Biotech. Inc., Hangzhou 310030, China
| | - Hong Zhang
- Hangzhou WeChampion Biotech. Inc., Hangzhou 310030, China
| | - Yanbin Lu
- Collaborative Innovation Center of Seafood Deep Processing, Key Laboratory of Aquatic Products Processing of Zhejiang Province, Institute of Seafood, Zhejiang Gongshang University, Hangzhou 310012, China
- Correspondence: ; Tel.: +86-571-87103135
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