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Zhang Z, Sun Y, Li Y, Song X, Wang R, Zhang D. The potential of marine-derived piperazine alkaloids: Sources, structures and bioactivities. Eur J Med Chem 2024; 265:116081. [PMID: 38181652 DOI: 10.1016/j.ejmech.2023.116081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 01/07/2024]
Abstract
Marine-derived piperazine alkaloids (MDPAs) constitute a significant group of natural compounds known for their diverse structures and biological activities. Over the past five decades, substantial efforts have been devoted to isolating these alkaloids from marine sources and characterizing their chemical and bioactive profiles. To date, a total of 922 marine-derived piperazine alkaloids have been reported from various marine organisms. These compounds demonstrate a wide range of pharmacological properties, including cytotoxicity, antibacterial, antifungal, antiviral, and various other activities. Notably, among these activities, cytotoxicity emerges as the most prominent characteristic of marine-derived piperazine alkaloids. This review also summarizes the structure-activity relationship (SAR) studies associated with the cytotoxicity of these compounds. In summary, our objective is to provide an overview of the research progress concerning marine-derived piperazine alkaloids, with the aim of fostering their continued development and utilization.
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Affiliation(s)
- Zilong Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China; School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, 712046, PR China.
| | - Yu Sun
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, 712046, PR China.
| | - Yiming Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China.
| | - Xiaomei Song
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, 712046, PR China.
| | - Rui Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PR China.
| | - Dongdong Zhang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, 712046, PR China.
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Chen YH, Zhu Q, Li J, Yang R, Zhang J, You M, Luo L, Yang B. Optimization of Fermentation Process for New Anti-Inflammatory Glycosylceramide Metabolite from Aspergillus sp. Metabolites 2024; 14:99. [PMID: 38392991 PMCID: PMC10890386 DOI: 10.3390/metabo14020099] [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: 12/09/2023] [Revised: 01/19/2024] [Accepted: 01/28/2024] [Indexed: 02/25/2024] Open
Abstract
A novel ceramide compound, named Aspercerebroside A (AcA), was successfully isolated from the ethyl acetate layer of the marine symbiotic fungus Aspergillus sp. AcA exhibited notable anti-inflammatory activity by effectively inhibiting the production of nitric oxide (NO) in RAW 264.7 cells at concentrations of 30 μg/mL and 40 μg/mL, offering a promising avenue for the treatment of inflammatory diseases. To optimize the yield of glycosylceramide (AcA), a series of techniques, including single-factor experiments, orthogonal experiments, and response surface optimization, were systematically employed to fine-tune the composition of the fermentation medium. Initially, the optimal carbon source (sucrose), nitrogen source (yeast extract powder), and the most suitable medium salinity (14 ppt) were identified through single-factor experiments. Subsequently, orthogonal experiments, employing an orthogonal table for planning and analyzing multifactor experiments, were conducted. Finally, a mathematical model, established using a Box-Behnken design, comprehensively analyzed the interactions between the various factors to determine the optimal composition of the fermentation medium. According to the model's prediction, when the sucrose concentration was set at 37.47 g/L, yeast extract powder concentration at 19.66 g/L, and medium salinity at 13.31 ppt, the predicted concentration of glycosylceramide was 171.084 μg/mL. The experimental results confirmed the model's accuracy, with the actual average concentration of glycosylceramide under these conditions measured at 171.670 μg/mL, aligning closely with the predicted value.
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Affiliation(s)
- Yung-Husan Chen
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Qiaoqiao Zhu
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Jingyi Li
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Rong Yang
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Jingwen Zhang
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Minxin You
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Lianzhong Luo
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
| | - Bingye Yang
- Xiamen Key Laboratory of Natural Products Resources of Marine Medicine, Xiamen Medical College, Xiamen 361023, China
- Fujian Provincial University Marine Biomedical Resources Engineering Research Center, Xiamen Medical College, Xiamen 361023, China
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Qin YQ, Liu W, Yin R, Xiao PT, Wang ZY, Huang TQ, Liu EH. New 4',5'-methylenedioxyflavone derivatives from the whole plant of sarcandra glabra. Nat Prod Res 2024; 38:177-185. [PMID: 35959693 DOI: 10.1080/14786419.2022.2111562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 07/28/2022] [Indexed: 10/15/2022]
Abstract
Two new natural products named 5,7-dihydroxy-3,3',6,8-tetramethoxy-4',5'-methylenedioxyflavone (1) and 3,3',5,7-tetramethoxy-4',5'-methylenedioxyflavone (2), along with thirteen known compounds, β-sitosterol (3), desmethoxyyangonin (4), hexadecane (5), 3,9-bis(2,4-di-tert-butylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro [5.5] undecane 3,9-dioxide (6), 2'6'-dihydroxy-4'-methoxydihydrochalcone (7), cardamonin (8), 3,3',5,6,7,8-hexamethoxy-4',5'-methylenedioxyflavone (9), isofraxidin (10), aniba dimer A (11), 3,3',4',5,5',8-hexamethoxy-6,7-methylenedioxyflavone (12), quercetin (13), quercitrin (14) and isoquercitrin (15) were isolated from Sarcandra glabra (Thunb.) Nakai by various chromatographic methods. Compounds 1, 2, 4, 6, 11, and 12 were isolated from S. glabra for the first time. Their chemical structures were identified through the analysis of NMR and HR-MS spectra. The anti-inflammatory and cytotoxic activities of compounds 1-15 were evaluated in cell assays. The results indicated that compounds 1, 7, 8, 10, 14, and 15 significantly inhibited the NO production in LPS-induced RAW 264.7 murine macrophage cells. Moreover, compounds 1, 3, 4, 7, 8, 9, 10 and 12 exhibited a cytotoxic effect on the human HepG2 cell line.
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Affiliation(s)
- Ya-Qiu Qin
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Wei Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Rui Yin
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Ping-Ting Xiao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Zi-Yuan Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Tian-Qing Huang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - E-Hu Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
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Acetylcholine Esterase Inhibitory Effect, Antimicrobial, Antioxidant, Metabolomic Profiling, and an In Silico Study of Non-Polar Extract of The Halotolerant Marine Fungus Penicillium chrysogenum MZ945518. Microorganisms 2023; 11:microorganisms11030769. [PMID: 36985342 PMCID: PMC10054823 DOI: 10.3390/microorganisms11030769] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 03/19/2023] Open
Abstract
Major health issues, such as the rise in oxidative stress, incidences of Alzheimer’s disease, and infections caused by antibiotic-resistant microbes, have prompted researchers to look for new therapeutics. Microbial extracts are still a good source of novel compounds for biotechnological use. The objective of the current work was to investigate marine fungal bioactive compounds with potential antibacterial, antioxidant, and acetylcholinesterase inhibitory effects. Penicillium chrysogenum strain MZ945518 was isolated from the Mediterranean Sea in Egypt. The fungus was halotolerant with a salt tolerance index of 1.3. The mycelial extract showed antifungal properties against Fusarium solani with an inhibitory percentage of 77.5 ± 0.3, followed by Rhizoctonia solani and Fusarium oxysporum with percentages of 52 ± 0.0 and 40 ± 0.5, respectively. The extract also showed antibacterial activity against both Gram-negative and Gram-positive bacterial strains using the agar diffusion technique. The fungal extract was significantly more effective with Proteus mirabilis ATCC 29906 and Micrococcus luteus ATCC 9341; inhibition zones recorded 20 and 12 mm, respectively, compared with the antibiotic gentamycin, which recorded 12 and 10 mm, respectively. The antioxidant activity of the fungus extract revealed that it successfully scavenged DPPH free radicals and recorded an IC50 of 542.5 µg/mL. Additionally, it was capable of reducing Fe3+ to Fe2+ and exhibiting chelating ability in the metal ion-chelating test. The fungal extract was identified as a crucial inhibitor of acetylcholinesterase with an inhibition percentage of 63% and an IC50 value of 60.87 µg/mL. Using gas chromatography–mass spectrometry (GC/MS), 20 metabolites were detected. The most prevalent ones were (Z)-18-octadec-9-enolide and 1,2-Benzenedicarboxylic acid, with ratios of 36.28 and 26.73%, respectively. An in silico study using molecular docking demonstrated interactions between the major metabolites and the target proteins, including: DNA Gyrase, glutathione S-transferase, and Acetylcholinesterase, confirming the extract’s antimicrobial and antioxidant activity. Penicillium chrysogenum MZ945518, a halotolerant strain, has promising bioactive compounds with antibacterial, antioxidant, and acetylcholinesterase inhibitory activities
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Endophytic Fungi and Secondary Metabolites of Rehmannia Glutinosa Based on Traditional Chinese Medicine Fingerprints. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:7701198. [PMID: 36110979 PMCID: PMC9448613 DOI: 10.1155/2022/7701198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/30/2022] [Accepted: 08/12/2022] [Indexed: 11/18/2022]
Abstract
Research on the active components of medicinal plants has always been the focus of research, and research on the active components of medicinal plant endophytic fungi and their secondary metabolites has also attracted widespread attention. Endophytic fungi of medicinal plants are widely distributed and are ubiquitous in various biological groups in nature. Rehmannia glutinosa contains a variety of active ingredients, which are regarded as the top grade of Chinese medicinal materials. It is of certain significance to study endophytic fungi and their metabolites of Rehmannia glutinosa. In this paper, endophytic fungi and their secondary metabolites of Rehmannia glutinosa were studied using fingerprint technology, which initially understands the diversity of endophytic fungi in Rehmannia glutinosa. In this paper, the roots and leaves of Rehmannia glutinosa were used as experimental materials. The fungi were cultured in the medium, the fungi were isolated and purified by the tissue block method, the fungal growth of Rehmannia glutinosa in different parts was determined, and the types of endophytic fungi were identified by microscopic identification and fingerprinting. The isolated strains were tested for biological activity using oryza oryzae spores, and highly active strains were screened. Fermentation products of endophytic fungi were separated and purified by chromatography, and the structure of the compounds was identified by nuclear magnetic resonance spectroscopy. Through the above studies, the population structure of endophytic fungi of Rehmannia glutinosa was determined, 3 highly active strains were found, and the structures of 7 endophytic fungi metabolites were identified, of which 3 were newly discovered compounds.
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Senger FR, Campos-Silva R, Landell MF, Silva DB, Menezes CB, Rigo GV, Silva LN, Trentin DS, Macedo AJ, Tasca T. Anti-Trichomonas vaginalis activity and chemical analysis of metabolites produced by marine-associated fungi. Parasitol Res 2022; 121:981-989. [PMID: 35113221 DOI: 10.1007/s00436-022-07442-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 01/10/2022] [Indexed: 11/24/2022]
Abstract
Trichomoniasis is the most common non-viral sexually transmitted infection worldwide and it may have serious consequences, especially for women. Currently, 5-nitroimidazole drugs are the treatment of choice for trichomoniasis, although presenting adverse effects and reported cases of drug resistance. Metabolites isolated from marine fungi have attracted considerable attention due to their unique chemical structures with diverse biological activities, including antiprotozoal activity. In this study, we showed the anti-Trichomonas vaginalis activity of fractions obtained from marine fungi and the chemical composition of the most active fraction was determined. Ethyl acetate fractions of the fungus Aspergillus niger (EAE03) and Trichoderma harzianum/Hypocrea lixii complex (EAE09) were active against T. vaginalis. These samples, EAE03 and EAE09, were also effective against the fresh clinical isolate metronidazole-resistant TV-LACM2R, presenting MIC values of 2.0 mg/mL and 1.0 mg/mL, respectively. The same MIC values were found against ATCC 30,236 T. vaginalis isolate. In vitro cytotoxicity revealed only the fraction named EAE03 with no cytotoxic effect; however, the active fractions did not promote a significant hemolytic effect after 1-h incubation. Already, the in vivo toxicity evaluation using Galleria mellonella larvae demonstrated that none of the tested samples caused a reduction in animal survival. The fraction EAE03 was followed for purification steps and analyzed by LC-DAD-MS. Eleven compounds were annotated, including butyrolactone, butanolide, and atromentin. Overall, the range of activities reported confirms the potential of marine fungi to produce bioactive molecules.
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Affiliation(s)
- Franciane Rios Senger
- Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil.,Centro de Biotecnologia Do Estado de Rio Grande Do Sul, Universidade Federal Do Rio Grande Do Sul, Porto AlegrePorto Alegre, RS, Brazil
| | - Rodrigo Campos-Silva
- Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil.,Centro de Biotecnologia Do Estado de Rio Grande Do Sul, Universidade Federal Do Rio Grande Do Sul, Porto AlegrePorto Alegre, RS, Brazil
| | - Melissa Fontes Landell
- Instituto de Ciências Biológicas E da Saúde, Universidade Federal de Alagoas, Maceió, AL, Brazil
| | - Denise Brentan Silva
- Laboratório de Produtos Naturais E Espectrometria de Massas (LaPNEM), Faculdade de Ciências Farmacêuticas, Alimentos E Nutrição (FACFAN), Universidade Federal de Mato Grosso Do Sul (UFMS), Campo Grande, MS, Brazil
| | - Camila Braz Menezes
- Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil
| | - Graziela Vargas Rigo
- Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil.,Centro de Biotecnologia Do Estado de Rio Grande Do Sul, Universidade Federal Do Rio Grande Do Sul, Porto AlegrePorto Alegre, RS, Brazil
| | - Laura Nunes Silva
- Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil.,Centro de Biotecnologia Do Estado de Rio Grande Do Sul, Universidade Federal Do Rio Grande Do Sul, Porto AlegrePorto Alegre, RS, Brazil
| | - Danielle Silva Trentin
- Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Alexandre José Macedo
- Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil.,Centro de Biotecnologia Do Estado de Rio Grande Do Sul, Universidade Federal Do Rio Grande Do Sul, Porto AlegrePorto Alegre, RS, Brazil
| | - Tiana Tasca
- Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil. .,Centro de Biotecnologia Do Estado de Rio Grande Do Sul, Universidade Federal Do Rio Grande Do Sul, Porto AlegrePorto Alegre, RS, Brazil.
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Simultaneous Production of Antibacterial Protein and Lipopeptides in Bacillus tequilensis, Detected by MALDI-TOF and GC Mass Analyses. Probiotics Antimicrob Proteins 2022; 15:749-760. [PMID: 35034324 DOI: 10.1007/s12602-021-09883-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2021] [Indexed: 12/29/2022]
Abstract
As antibiotic resistance is nowadays one of the important challenges, efforts are crucial for the discovery of novel antibacterial drugs. This study aimed to evaluate antimicrobial/anticancerous activities of halophilic bacilli from the human microbiota. A spore-forming halotolerant bacterium with antibacterial effect against Staphylococcus aureus was isolated from healthy human feces. The antibacterial protein components of the extracted supernatant were identified by SDS-PAGE and zymography. The MALDI-TOF, GC mass, and FTIR analyses were used for peptide and lipopeptide identification, respectively. The stability, toxicity, and anticancerous effects were investigated using MTT and Flow cytometry methods. According to the molecular analysis, the strain was identified as Bacillus tequilensis and showed potential probiotic properties, such as bile and acid resistance, as well as eukaryotic cell uptake. SDS-PAGE and zymography showed that 15 and 10-kDa fragments had antibacterial effects. The MALDI-TOF mass analysis indicated that the 15-kDa fragment was L1 ribosomal protein, which was the first report of the RpL1 in bacilli. GC-mass and FTIR analyses confirmed the lipopeptide nature of the 10-kDa fragment. Both the extracted fractions (precipitation or "P" and chloroform or "C" fractions) were stable at < 100 °C for 10 min, and their antibacterial effects were preserved for more than 6 months. Despite its non-toxicity, the P fraction had anticancer activities against MCF7 cells. The anticancer and antibacterial properties of B. tequilensis, along with its non-toxicity and stability, have made it a potential candidate for studying the beneficial probiotic properties for humans and drug production.
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Shaaban M. New compounds from Sarcophyton glaucom-derived Penicillium sp. Z NATURFORSCH C 2021; 77:271-277. [PMID: 34905669 DOI: 10.1515/znc-2021-0236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 11/20/2021] [Indexed: 11/15/2022]
Abstract
Further investigation of the residual bioactive compounds produced by the soft coral Sarcophyton glaucom-derived Penicillium sp. MMA afforded five new compounds assigned as 9-methoxy-penicyrone A (1), 9-methoxy-penicyrone B (2), 3-hydroxy-2,2,4-trimethyl-pentyl ester (3), 3-hydroxy-1-isopropyl-2,2-dimethyl-propyl ester (4), and 3-isobutyryloxy-2,2,4-trimethyl-pentyl linoleate (5). Additional six known compounds were isolated: penicyrones A-B (6, 7), 4-(2-hydroxy-3-butynoxy)benzoic acid (8), cyclopenol (9), aspermytin A (10), and aurantiomide A (11). Structures of the new compounds (1-5) were identified by 1D (1H & 13C) and 2 D (1H-1H COSY, HMBC and NOESY) NMR and HRESI-MS spectroscopic data. Biologically, the antimicrobial activities of the obtained compounds were studied as well.
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Affiliation(s)
- Mohamed Shaaban
- Chemistry of Natural Compounds Department, Division of Pharmaceutical Industries, National Research Centre, El-Behoos St. 33, Dokki, Cairo 12622, Egypt
- University of Göttingen, Institute of Organic and Biomolecular Chemistry, Tammannstrasse 2, D-37077, Göttingen, Germany
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Deep learning strategies for active secondary metabolites biosynthesis from fungi: Harnessing artificial manipulation and application. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102195] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Teixeira TR, Rangel KC, Tavares RSN, Kawakami CM, Dos Santos GS, Maria-Engler SS, Colepicolo P, Gaspar LR, Debonsi HM. In Vitro Evaluation of the Photoprotective Potential of Quinolinic Alkaloids Isolated from the Antarctic Marine Fungus Penicillium echinulatum for Topical Use. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2021; 23:357-372. [PMID: 33811268 DOI: 10.1007/s10126-021-10030-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
Marine-derived fungi proved to be a rich source of biologically active compounds. The genus Penicillium has been extensively studied regarding their secondary metabolites and biological applications. However, the photoprotective effects of these metabolites remain underexplored. Herein, the photoprotective potential of Penicillium echinulatum, an Antarctic alga-associated fungus, was assessed by UV absorption, photostability study, and protection from UVA-induced ROS generation assay on human immortalized keratinocytes (HaCaT) and reconstructed human skin (RHS). The photosafety was evaluated by the photoreactivity (OECD TG 495) and phototoxicity assays, performed by 3T3 neutral red uptake (3T3 NRU PT, OECD TG 432) and by the RHS model. Through a bio-guided purification approach, four known alkaloids, (-)-cyclopenin (1), dehydrocyclopeptine (2), viridicatin (3), and viridicatol (4), were isolated. Compounds 3 and 4 presented absorption in UVB and UVA-II regions and were considered photostable after UVA irradiation. Despite compounds 3 and 4 showed phototoxic potential in 3T3 NRU PT, no phototoxicity was observed in the RHS model (reduction of cell viability < 30%), which indicates their very low acute photoirritation and high photosafety potential in humans. Viridicatin was considered weakly photoreactive, while viridicatol showed no photoreactivity; both compounds inhibited UVA-induced ROS generation in HaCaT cells, although viridicatol was not able to protect the RHS model against UVA-induced ROS production. Thus, the results highlighted the photoprotective and antioxidant potential of metabolites produced by P. echinulatum which can be considered a new class of molecules for photoprotection, since their photosafety and non-cytotoxicity were predicted using recommended in vitro methods for topical use.
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Affiliation(s)
- Thaiz Rodrigues Teixeira
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Karen Cristina Rangel
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Renata Spagolla Napoleão Tavares
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Camila Martins Kawakami
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Gustavo Souza Dos Santos
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Silvya Stuchi Maria-Engler
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Pio Colepicolo
- Department of Biochemistry, Chemistry Institute, University of São Paulo, São Paulo, SP, Brazil
| | - Lorena Rigo Gaspar
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Hosana Maria Debonsi
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
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