1
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Jordão AC, Dos Santos GS, Teixeira TR, Gluzezak AJP, de Souza Azevedo CB, de Castro Pereira K, Tonani L, Gaspar LR, von Zeska Kress MR, Colepicolo P, Debonsi HM. Assessment of the photoprotective potential and structural characterization of secondary metabolites of Antarctic fungus Arthrinium sp. Arch Microbiol 2023; 206:35. [PMID: 38141073 DOI: 10.1007/s00203-023-03756-w] [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: 09/13/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 12/24/2023]
Abstract
Interest in Antarctic fungi has grown due to their resilience in harsh environments, suggesting the presence of valuable compounds from its organisms, such as those presenting photoprotective potential, since this environment suffers the most dangerous UV exposure in the world. Therefore, this research aimed to assess the photoprotective potential of compounds from sustainable marine sources, specifically seaweed-derived fungi from Antarctic continent. These studies led to discovery of photoprotective and antioxidant properties of metabolites from Arthrinium sp., an endophytic fungus from Antarctic brown algae Phaeurus antarcticus. From crude extract, fractions A-I were obtained and compounds 1-6 isolated from E and F fractions, namely 3-Hydroxybenzyl alcohol (1), (-)-orthosporin (2), norlichexanthone (3), anomalin B (4), anomalin A (5), and agonodepside B (6). Compounds 1, 2, and 6 were not previously reported in Arthrinium. Fraction F demonstrated excellent absorbance in both UVA and UVB regions, while compound 6 exhibited lower UVB absorbance, possibly due to synergistic effects. Fraction F and compound 6 displayed photostability and were non-phototoxic to HaCaT cells. They also exhibited antioxidant activity by reducing intracellular ROS production induced by UVA in keratinocyte monolayers and reconstructed human skin models (resulting in 34.6% and 30.2% fluorescence reduction) and did not show irritation potential in HET-CAM assay. Thus, both are promising candidates for use in sunscreens. It is noted that Fraction F does not require further purification, making it advantageous, although clinical studies are necessary to confirm its potential applicability for sunscreen formulations.
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Affiliation(s)
- Ana Carolina Jordão
- Department of Biomolecular 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
- Department of Life Sciences, State University of Bahia, Salvador, BA, Brazil
| | - Thaiz Rodrigues Teixeira
- Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
- Center for Discovery and Innovation in Parasitic Disease, Skaggs School of Pharmacy and Pharmaceutical Sciences, University California San Diego, California, CA, USA
| | - Ana Júlia Pasuch Gluzezak
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Clarissa Bechuate de Souza Azevedo
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Karina de Castro Pereira
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Ludmilla Tonani
- Department of Clinical, Toxicological and Bromatological Analysis, School of Pharmaceutical Sciences, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Lorena Rigo Gaspar
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Márcia Regina von Zeska Kress
- Department of Clinical, Toxicological and Bromatological Analysis, School of Pharmaceutical Sciences, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Pio Colepicolo
- Department of Biochemistry, Chemistry Institute, University of São Paulo, São Paulo, 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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2
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Tan Z, Li J, Hou J, Gonzalez R. Designing artificial pathways for improving chemical production. Biotechnol Adv 2023; 64:108119. [PMID: 36764336 DOI: 10.1016/j.biotechadv.2023.108119] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023]
Abstract
Metabolic engineering exploits manipulation of catalytic and regulatory elements to improve a specific function of the host cell, often the synthesis of interesting chemicals. Although naturally occurring pathways are significant resources for metabolic engineering, these pathways are frequently inefficient and suffer from a series of inherent drawbacks. Designing artificial pathways in a rational manner provides a promising alternative for chemicals production. However, the entry barrier of designing artificial pathway is relatively high, which requires researchers a comprehensive and deep understanding of physical, chemical and biological principles. On the other hand, the designed artificial pathways frequently suffer from low efficiencies, which impair their further applications in host cells. Here, we illustrate the concept and basic workflow of retrobiosynthesis in designing artificial pathways, as well as the most currently used methods including the knowledge- and computer-based approaches. Then, we discuss how to obtain desired enzymes for novel biochemistries, and how to trim the initially designed artificial pathways for further improving their functionalities. Finally, we summarize the current applications of artificial pathways from feedstocks utilization to various products synthesis, as well as our future perspectives on designing artificial pathways.
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Affiliation(s)
- Zaigao Tan
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China; School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China; Department of Bioengineering, Shanghai Jiao Tong University, Shanghai, China.
| | - Jian Li
- State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China; School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China; Department of Bioengineering, Shanghai Jiao Tong University, Shanghai, China
| | - Jin Hou
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Ramon Gonzalez
- Department of Chemical, Biological, and Materials Engineering, University of South Florida, Tampa, FL, USA.
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3
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Waluyo D, Prabandari EE, Pramisandi A, Hidayati DN, Chrisnayanti E, Puspitasari DJ, Dewi D, Oktaviani AN, Afrianti KR, Nonaka K, Matsumoto A, Tokiwa T, Adipratiwi N, Ariyani T, Hartuti ED, Putri TZ, Rahmawati Y, Inaoka DK, Miyazaki Y, Sakura T, Siska E, Kurnia K, Bernawati P, Mahsunah AH, Nugroho NB, Mori M, Dobashi K, Yamashita M, Nurkanto A, Watanabe A, Shiomi K, Wibowo AE, Nozaki T. Exploring natural microbial resources for the discovery of anti-malarial compounds. Parasitol Int 2021; 85:102432. [PMID: 34363974 DOI: 10.1016/j.parint.2021.102432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/23/2021] [Accepted: 08/01/2021] [Indexed: 01/21/2023]
Abstract
Microorganisms in nature are highly diverse biological resources, which can be explored for drug discovery. Some countries including Brazil, Columbia, Indonesia, China, and Mexico, which are blessed with geographical uniqueness with diverse climates and display remarkable megabiodiversity, potentially provide microorganismal resources for such exploitation. In this review, as an example of drug discovery campaigns against tropical parasitic diseases utilizing microorganisms from such a megabiodiversity country, we summarize our past and on-going activities toward discovery of new antimalarials. The program was held in a bilateral collaboration between multiple Indonesian and Japanese research groups. In order to develop a new platform of drug discovery utilizing Indonesian bioresources under an international collaborative scheme, we aimed at: 1) establishment of an Indonesian microbial depository, 2) development of robust enzyme-based and cell-based screening systems, and 3) technology transfer necessary for screening, purification, and identification of antimalarial compounds from microbial culture broths. We collected, characterized, and deposited Indonesian microbes. We morphologically and genetically characterized fungi and actinomycetes strains isolated from 5 different locations representing 3 Indonesian geographical areas, and validated genetic diversity of microbes. Enzyme-based screening was developed against two validated mitochondrial enzymes from Plasmodium falciparum, dihydroorotate dehydrogenase and malate:quinone oxidoreductase, while cell-based proliferation assay was developed using the erythrocytic stage parasite of 3D7 strain. More than 17 thousands microbial culture extracts were subjected to the enzyme- and cell-based screening. Representative anti-malarial compounds discovered in this campaign are discussed, including a few isolated compounds that have been identified for the first time as anti-malarial compounds. Our antimalarial discovery campaign validated the Indonesian microbial library as a powerful resource for drug discovery. We also discuss critical needs for selection criteria for hits at each stage of screening and hit deconvolution such as preliminary extraction test for the initial profiling of the active compounds and dereplication techniques to minimize repetitive discovery of known compounds.
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Affiliation(s)
- Danang Waluyo
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Erwahyuni Endang Prabandari
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Amila Pramisandi
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Dyah Noor Hidayati
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Evita Chrisnayanti
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Dian Japany Puspitasari
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Diana Dewi
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Avi Nurul Oktaviani
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Kiki Rizkia Afrianti
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Kenichi Nonaka
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Atsuko Matsumoto
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Toshiyuki Tokiwa
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Nadia Adipratiwi
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Titin Ariyani
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Endah Dwi Hartuti
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia; School of Tropical Medicine and Global Health, Nagasaki University, 1-12-4, Sakamoto, Nagasaki 852-8523, Japan
| | - Tiara Zovi Putri
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Yulia Rahmawati
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Daniel Ken Inaoka
- School of Tropical Medicine and Global Health, Nagasaki University, 1-12-4, Sakamoto, Nagasaki 852-8523, Japan
| | - Yukiko Miyazaki
- School of Tropical Medicine and Global Health, Nagasaki University, 1-12-4, Sakamoto, Nagasaki 852-8523, Japan
| | - Takaya Sakura
- School of Tropical Medicine and Global Health, Nagasaki University, 1-12-4, Sakamoto, Nagasaki 852-8523, Japan
| | - Eka Siska
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Kesi Kurnia
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Putri Bernawati
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Anis Herliyati Mahsunah
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Nuki Bambang Nugroho
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia
| | - Mihoko Mori
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Kazuyuki Dobashi
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Michio Yamashita
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Arif Nurkanto
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan; Research Center for Biology, Indonesia Institute of Science (LIPI), Cibinong, Indonesia
| | | | - Kazuro Shiomi
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Agung Eru Wibowo
- Laboratory for Biotechnology (Biotech Center), Agency for the Assessment and Application of Technology (BPPT), Building 630, Puspiptek Area, Setu, South Tangerang 15314, Banten, Indonesia; Center for Pharmaceutical and Medical Technology, Agency for the Assessment and Application of Technology (BPPT), Laptiab, Puspiptek, Setu, South Tangerang 15314, Banten, Indonesia
| | - Tomoyoshi Nozaki
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan.
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4
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Pramisandi A, Kurnia K, Chrisnayanti E, Bernawati P, Dobashi K, Mori M, Mahsunah AH, Nonaka K, Matsumoto A, Kristiningrum, Hidayati DN, Dewi D, Prabandari EE, Amalia E, Rahmawati Y, Nurkanto A, Inaoka DK, Waluyo D, Kita K, Nozaki T, Ōmura S, Shiomi K. Gentisyl alcohol and homogentisic acid: Plasmodium falciparum dihydroorotate dehydrogenase inhibitors isolated from fungi. J GEN APPL MICROBIOL 2021; 67:114-117. [PMID: 33814517 DOI: 10.2323/jgam.2020.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Two Indonesian fungi Aspergillus assiutensis BioMCC-f.T.7495 and Penicillium pedernalense BioMCC-f.T.5350 along with a Japanese fungus Hypomyces pseudocorticiicola FKI-9008 have been found to produce gentisyl alcohol (1), which inhibits Plasmodium falciparum dihydroorotate dehydrogenase (PfDHODH) with an IC50 value of 3.4 μM. Another Indonesian fungus, Penicillium citrinum BioMCC-f.T.6730, produced an analog of 1, homogentisic acid (4), which also inhibits PfDHODH with an IC50 value of 47.6 μM.
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Affiliation(s)
- Amila Pramisandi
- Graduate School of Infection Control Sciences, Kitasato University.,Laboratory for Biotechnology, Agency for the Assessment and Application of Technology (BPPT)
| | - Kesi Kurnia
- Laboratory for Biotechnology, Agency for the Assessment and Application of Technology (BPPT)
| | - Evita Chrisnayanti
- Laboratory for Biotechnology, Agency for the Assessment and Application of Technology (BPPT)
| | - Putri Bernawati
- Laboratory for Biotechnology, Agency for the Assessment and Application of Technology (BPPT)
| | - Kazuyuki Dobashi
- Department of Drug Discovery Sciences, Kitasato Institute for Life Sciences
| | - Mihoko Mori
- Graduate School of Infection Control Sciences, Kitasato University.,Department of Drug Discovery Sciences, Kitasato Institute for Life Sciences
| | - Anis Herliyati Mahsunah
- Laboratory for Biotechnology, Agency for the Assessment and Application of Technology (BPPT)
| | - Kenichi Nonaka
- Graduate School of Infection Control Sciences, Kitasato University.,Department of Drug Discovery Sciences, Kitasato Institute for Life Sciences
| | - Atsuko Matsumoto
- Graduate School of Infection Control Sciences, Kitasato University.,Department of Drug Discovery Sciences, Kitasato Institute for Life Sciences
| | - Kristiningrum
- Laboratory for Biotechnology, Agency for the Assessment and Application of Technology (BPPT)
| | - Dyah Noor Hidayati
- Laboratory for Biotechnology, Agency for the Assessment and Application of Technology (BPPT)
| | - Diana Dewi
- Laboratory for Biotechnology, Agency for the Assessment and Application of Technology (BPPT)
| | | | - Eri Amalia
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo
| | - Yulia Rahmawati
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo
| | - Arif Nurkanto
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo.,Research Center for Biology, Indonesia Institute of Sciences (LIPI)
| | - Daniel Ken Inaoka
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo.,School of Tropical Medicine and Global Health, Nagasaki University.,Department of Molecular Infection Dynamics, Institute of Tropical Medicine (NEKKEN), Nagasaki University
| | - Danang Waluyo
- Laboratory for Biotechnology, Agency for the Assessment and Application of Technology (BPPT)
| | - Kiyoshi Kita
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo.,School of Tropical Medicine and Global Health, Nagasaki University.,Department of Molecular Infection Dynamics, Institute of Tropical Medicine (NEKKEN), Nagasaki University.,Department of Host-Defense Biochemistry, Institute of Tropical Medicine (NEKKEN), Nagasaki University
| | - Tomoyoshi Nozaki
- Department of Biomedical Chemistry, Graduate School of Medicine, The University of Tokyo
| | - Satoshi Ōmura
- Department of Drug Discovery Sciences, Kitasato Institute for Life Sciences
| | - Kazuro Shiomi
- Graduate School of Infection Control Sciences, Kitasato University.,Department of Drug Discovery Sciences, Kitasato Institute for Life Sciences
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5
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Noriler SA, Savi DC, Ponomareva LV, Rodrigues R, Rohr J, Thorson JS, Glienke C, Shaaban KA. Vochysiamides A and B: Two new bioactive carboxamides produced by the new species Diaporthe vochysiae. Fitoterapia 2019; 138:104273. [PMID: 31344395 PMCID: PMC7015639 DOI: 10.1016/j.fitote.2019.104273] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/20/2019] [Accepted: 07/21/2019] [Indexed: 01/05/2023]
Abstract
Endophytic fungi have been considered a rich source for bioactive secondary metabolites with novel chemical structures. A high diverse group of endophytes, isolated from different medicinal plants, belongs to the genus Diaporthe. In a previously study performed by our group the crude extract of strain LGMF1583 showed considerable antibacterial activity mainly against Gram-negative bacteria. Based on ITS phylogeny analysis, strain LGMF1583 was identified as belonging to Diaporthe genus and may represent a new species. In the present study, we described the new species Diporthe vochysiae based on multilocus phylogeny analysis and morphological characteristics. The species name refers to the host, from which strain LGMF1583 was isolated, the medicinal plant Vochysia divergens. In view of the biotechnological potential of strain LGMF1583, we have also characterized the secondary metabolites produced by D. vochysiae. Chemical assessment of the D. vochysiae LGMF1583 revealed two new carboxamides, vochysiamides A (1) and B (2), in addition to the known metabolite, 2,5-dihydroxybenzyl alcohol (3). In the biological activity analysis, vochysiamide B (2) displayed considerable antibacterial activity against the Gram-negative bacterium Klebsiella pneumoniae (KPC), a producer of carbapenemases, MIC of 80 μg/mL. Carbapenemases are considered a major antimicrobial resistance threat, and infections caused by KPC have been considered a public health problem worldwide, and new compounds with activity against this bacterium are nowadays even more required.
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Affiliation(s)
- Sandriele Aparecida Noriler
- Department of Pathology, Universidade Federal do Parana, Av. Coronel Francisco Heráclito dos Santos, 210, CEP: 81531-970 Curitiba, PR, Brazil
| | - Daiani Cristina Savi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536, United States; Department of Genetics, Universidade Federal do Parana, Av. Coronel Francisco Heráclito dos Santos, 210, CEP: 81531-970 Curitiba, PR, Brazil
| | - Larissa V Ponomareva
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536, United States; Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, KY 40536, United States
| | - Renata Rodrigues
- Department of Pathology, Universidade Federal do Parana, Av. Coronel Francisco Heráclito dos Santos, 210, CEP: 81531-970 Curitiba, PR, Brazil
| | - Jürgen Rohr
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536, United States
| | - Jon S Thorson
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536, United States; Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, KY 40536, United States
| | - Chirlei Glienke
- Department of Genetics, Universidade Federal do Parana, Av. Coronel Francisco Heráclito dos Santos, 210, CEP: 81531-970 Curitiba, PR, Brazil.
| | - Khaled A Shaaban
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536, United States; Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, KY 40536, United States.
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6
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Wang HS, Li HJ, Wang LF, Shen ZL, Wu YC. Regioselective synthesis of gentisyl alcohol-type marine natural products. Nat Prod Res 2019; 33:1891-1896. [DOI: 10.1080/14786419.2018.1478831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Hong-Shuang Wang
- School of Marine Science and Technology, Harbin Institute of Technology , Weihai, P. R. China
| | - Hui-Jing Li
- School of Marine Science and Technology, Harbin Institute of Technology , Weihai, P. R. China
| | - Long-Fei Wang
- School of Marine Science and Technology, Harbin Institute of Technology , Weihai, P. R. China
| | - Zhi-Lun Shen
- School of Marine Science and Technology, Harbin Institute of Technology , Weihai, P. R. China
| | - Yan-Chao Wu
- School of Marine Science and Technology, Harbin Institute of Technology , Weihai, P. R. China
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry Chinese Academy of Sciences , Beijing, P. R. China
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7
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Shen X, Wang J, Gall BK, Ferreira EM, Yuan Q, Yan Y. Establishment of Novel Biosynthetic Pathways for the Production of Salicyl Alcohol and Gentisyl Alcohol in Engineered Escherichia coli. ACS Synth Biol 2018; 7:1012-1017. [PMID: 29570271 DOI: 10.1021/acssynbio.8b00051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Salicyl alcohol and gentisyl alcohol are two important phenolic alcohols that possess significant biological activities and pharmaceutical properties. Here, we report establishment of novel biosynthetic pathways for microbial production of salicyl alcohol and gentisyl alcohol from renewable feedstocks. We first examined the promiscuity of the carboxylic acid reductase CAR toward salicylic acid and 2,5-DHBA, which enabled efficient synthesis of salicyl alcohol and gentisyl alcohol. Then, we employed a novel salicylic acid 5-hydroxylase to achieve 2,5-DHBA production from salicylic acid. After that, the de novo biosynthetic pathways were assembled and optimized by programming the carbon flux into the shikimate pathway. The final titers of salicyl alcohol and gentisyl alcohol reached to 594.4 mg/L and 30.1 mg/L, respectively. To our knowledge, this work achieved microbial production of salicyl alcohol and gentisyl alcohol for the first time. Our present study also demonstrated application of enzyme promiscuity to establish non-natural biosynthetic pathways for the production of high-value compounds.
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Affiliation(s)
- Xiaolin Shen
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jia Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Bradley K. Gall
- Department of Chemistry, The University of Georgia, Athens, Georgia 30602, United States
| | - Eric M. Ferreira
- Department of Chemistry, The University of Georgia, Athens, Georgia 30602, United States
| | - Qipeng Yuan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yajun Yan
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, The University of Georgia, Athens, Georgia 30602, United States
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8
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Reveglia P, Savocchia S, Billones-Baaijens R, Cimmino A, Evidente A. Isolation of Phytotoxic Phenols and Characterization of a New 5-Hydroxymethyl-2-isopropoxyphenol from Dothiorella vidmadera, a Causal Agent of Grapevine Trunk Disease. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:1760-1764. [PMID: 29397696 DOI: 10.1021/acs.jafc.7b05248] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Polyphenols were characterized from Dothiorella vidmadera (DAR78993), which was isolated from a grapevine in Australia. In total, six polyphenols were isolated including a new polyphenol characterized by a spectroscopic method (essentially NMR and HR ESIMS) as 5-hydroxymethyl-2-isopropoxyphenol. Tyrosol, benzene-1,2,4-triol, resorcinol, 3-(hydroxymethyl)phenol, and protocatechuic alcohol, the latter being the main metabolite, were also isolated. Although these are already known as naturally occurring compounds in microorganisms and plants, this is the first time they have been isolated from fungal organisms involved in grapevine trunk disease. When assayed on tomato seedlings, all the compounds show similar phytotoxic effects. However, when assayed on grapevine leaves (Vitis vinifera cv Shiraz), resorcinol was the most toxic compound, followed by protocatechuic alcohol and 5-hydroxymethyl-2-isopropoxyphenol.
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Affiliation(s)
- Pierluigi Reveglia
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II , Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
- National Wine and Grape Industry Centre, School of Agricultural and Wine Sciences, Charles Sturt University , Locked Bag 588 Wagga, Wagga, NSW 2678, Australia
| | - Sandra Savocchia
- National Wine and Grape Industry Centre, School of Agricultural and Wine Sciences, Charles Sturt University , Locked Bag 588 Wagga, Wagga, NSW 2678, Australia
| | - Regina Billones-Baaijens
- National Wine and Grape Industry Centre, School of Agricultural and Wine Sciences, Charles Sturt University , Locked Bag 588 Wagga, Wagga, NSW 2678, Australia
| | - Alessio Cimmino
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II , Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
| | - Antonio Evidente
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II , Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Napoli, Italy
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Kumar CG, Mongolla P, Pombala S, Bandi S, Babu KS, Ramakrishna KVS. Biological evaluation of 3-hydroxybenzyl alcohol, an extrolite produced by Aspergillus nidulans strain KZR-132. J Appl Microbiol 2017; 122:1518-1528. [PMID: 28314049 DOI: 10.1111/jam.13450] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 02/16/2017] [Accepted: 03/08/2017] [Indexed: 11/28/2022]
Abstract
AIMS The aim of the study was to purify and characterize a bioactive compound from Aspergillus nidulans strain KZR-132 and its biological evaluation. METHODS AND RESULTS A bioactive extolite was purified from A. nidulans strain KZR-132, and its chemical structure was elucidated as 3-hydroxylbenzyl alcohol (3-HBA) based on 1 H and 13 C NMR, FT-IR and mass spectroscopic analysis. The antimicrobial efficacy of 3-HBA was established against Gram-positive, Gram-negative bacteria and different Candida strains. It also showed promising antibiofilm activity against various tested microbial strains. Reactive oxygen species induced by 3-HBA treatment on different Candida strains killed most of the cells and showed necrotic effect. It also exhibited dose-dependent antioxidant and anti-inflammatory activities. CONCLUSIONS This bioactive extrolite produced by A. nidulans isolated from a niche habitat was demonstrated to possess significant biotechnological and pharmacological potential since it exhibited broad-spectrum antimicrobial and antibiofilm activities which are reported for the first time. SIGNIFICANCE AND IMPACT OF THE STUDY The overall study demonstrates that 3-HBA produced by A. nidulansKZR-132 is a promising bioactive metabolite and possibly can function as a pharmacologically suitable broad-spectrum antimicrobial drug candidate against various dreaded human-related bacterial and fungal pathogens.
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Affiliation(s)
- C Ganesh Kumar
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
| | - P Mongolla
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India.,Department of Biotechnology, Acharya Nagarjuna University, Guntur, Andhra Pradesh, India
| | - S Pombala
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
| | - S Bandi
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
| | - K S Babu
- Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
| | - K V S Ramakrishna
- Nuclear Magnetic Resonance Centre, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
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10
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Zwick V, Allard PM, Ory L, Simões-Pires CA, Marcourt L, Gindro K, Wolfender JL, Cuendet M. UHPLC-MS-based HDAC Assay Applied to Bio-guided Microfractionation of Fungal Extracts. PHYTOCHEMICAL ANALYSIS : PCA 2017; 28:93-100. [PMID: 27921344 DOI: 10.1002/pca.2652] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 09/06/2016] [Accepted: 09/18/2016] [Indexed: 06/06/2023]
Abstract
INTRODUCTION Histone deacetylases (HDAC) are considered as promising targets for cancer treatment. Today, four HDAC inhibitors, vorinostat, romidepsin, belinostat, and panobinostat, have been approved by the Food and Drug Administration (FDA) for cancer treatment, while others are in clinical trials. Among them, several are naturally occurring fungal metabolites. OBJECTIVE To develop and optimise an enzyme assay for bio-guided identification of HDAC inhibitors in fungal strains. METHODS Fluorescence and MS-based HDAC enzymatic assays were compared during the bio-guided fractionation of Penicillium griseofulvum. The MS-based approach was then optimised to evaluate HDAC selectivity using the human recombinant class I isoform HDAC1 and the class II isoform HDAC6. RESULTS Fluorescence-based assays have several drawbacks when used for bio-guided fractionation because of the native fluorescence and the trypsin inhibitory ability of compounds present in many extracts. The MS-based method led to the isolation of gliocladride C, which is selective for HDAC1 and salirepol, which showed an HDAC6 selectivity. Their activity and presence in P. griseofulvum is described here for the first time. CONCLUSION The UHPLC-ESI-MS/MS-based method using specific HDAC isoforms is suitable to isolate selective HDAC inhibitors by bio-guided fractionation of fungal strains. Also, it decreases potential interferences with natural products compared to the fluorescence-based assay.
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Affiliation(s)
- Vincent Zwick
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
| | - Pierre-Marie Allard
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
| | - Lucie Ory
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
| | - Claudia A Simões-Pires
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
| | - Katia Gindro
- Mycology and Biotechnology group, Institute for Plant Production Sciences IPS, Agroscope, Route de Duillier 50, P.O. Box 1260, Nyon, Switzerland
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
| | - Muriel Cuendet
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, CMU - Rue Michel Servet 1, 1211, Geneva, 11, Switzerland
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11
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Production of Gentisyl Alcohol from Phoma herbarum Endophytic in Curcuma longa L. and Its Antagonistic Activity Towards Leaf Spot Pathogen Colletotrichum gloeosporioides. Appl Biochem Biotechnol 2016; 180:1093-1109. [DOI: 10.1007/s12010-016-2154-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 06/01/2016] [Indexed: 12/23/2022]
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Metabolomic and Transcriptomic Comparison of Solid-State and Submerged Fermentation of Penicillium expansum KACC 40815. PLoS One 2016; 11:e0149012. [PMID: 26863302 PMCID: PMC4749308 DOI: 10.1371/journal.pone.0149012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 01/26/2016] [Indexed: 12/02/2022] Open
Abstract
Penicillium spp. are known to harbor a wide array of secondary metabolites with cryptic bioactivities. However, the metabolomics of these species is not well-understood in terms of different fermentation models and conditions. The present study involved metabolomics profiling and transcriptomic analysis of Penicillium expansum 40815 under solid-state fermentation (SSF) and submerged fermentation (SmF). Metabolite profiling was carried out using ultra-performance liquid chromatography quadruple time-of-flight mass spectrometry with multivariate analysis, followed by transcriptomic analyses of differentially expressed genes. In principal component analysis, the metabolite profiling data was studied under different experimental sets, including SSF and SmF. The significantly different metabolites such as polyketide metabolites (agonodepside B, rotiorin, verrucosidin, and ochrephilone) and corresponding gene transcripts (polyketide synthase, aromatic prenyltransferase, and terpenoid synthase) were primarily detected under SmF conditions. In contrast, the meroterpenoid compounds (andrastin A and C) and their genes transcripts were exclusively detected under SSF conditions. We demonstrated that the metabolite production and its corresponding gene expression levels in P. expansum 40815 were significantly influenced by the varying growth parameters and the immediate environment. This study further provides a foundation to produce specific metabolites by regulating fermentation conditions.
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Gan M, Liu Y, Bai Y, Guan Y, Li L, Gao R, He W, You X, Li Y, Yu L, Xiao C. Polyketides with New Delhi metallo-β-lactamase 1 inhibitory activity from Penicillium sp. JOURNAL OF NATURAL PRODUCTS 2013; 76:1535-1540. [PMID: 23972215 DOI: 10.1021/np4000944] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Three new polyketide compounds (1-3), a new quinolone alkaloid (4), and seven known polyketide derivatives were identified from the cultures of Penicillium sp. I09F 484, a strain isolated from the rhizosphere soil of the plant Picea asperata from Kanas Lake, Xinjiang, China. Their structures were elucidated by extensive spectroscopic data analysis. The absolute configurations of 1 and 4 were established by quantum chemical time-dependent density functional theory electronic circular dichroism calculation and Marfey's method, respectively. Compounds 1 and 2 displayed inhibitory activity against New Delhi metallo-β-lactamase 1 with IC₅₀ values of 94.9 and 87.9 μM, respectively.
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Affiliation(s)
- Maoluo Gan
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
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Sun SW, Ji CZ, Gu QQ, Li DH, Zhu TJ. Three new polyketides from marine-derived fungus Aspergillus glaucus HB1-19. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2013; 15:956-961. [PMID: 23947932 DOI: 10.1080/10286020.2013.826205] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Two new benzyl derivatives, aspergentisyl A (1) and aspergentisyl B (2), as well as one new naphthoquinone derivative, aspergiodiquinone (3), together with seven known prenylated benzaldehyde derivatives (4-10) were isolated from the marine-derived fungus Aspergillus glaucus HB1-19. The structures of these compounds were characterized based on 1D and 2D NMR spectra analyses and comparison with those reported in the literature. In addition, each isolate was tested for its 1,1-diphenyl-2-picrylhydrazyl radical-scavenging property and all these compounds except compound 3 exhibited strong radical-scavenging activity.
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Affiliation(s)
- Shi-Wei Sun
- a Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China , Qingdao , 266003 , China
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Kim HY, Park HM, Lee CH. Mass spectrometry-based chemotaxonomic classification of Penicillium species (P. echinulatum, P. expansum, P. solitum, and P. oxalicum) and its correlation with antioxidant activity. J Microbiol Methods 2012; 90:327-35. [PMID: 22732319 DOI: 10.1016/j.mimet.2012.06.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Revised: 06/11/2012] [Accepted: 06/13/2012] [Indexed: 11/19/2022]
Abstract
In this study, 4 Penicillium species (17 strains) were classified on the basis of metabolite profile (chemotaxonomy) by using liquid chromatography-electrospray ionization ion trap-mass spectrometry (LC-ESI-MS), gas chromatography-ion trap-mass spectrometry (GC-IT-MS) and multivariate statistical analysis. The LC-ESI-MS-based dendrogram was similar to the internal transcribed spacer (ITS)-based dendrogram, in that Penicillium oxalicum was separated from the other 3 species. Moreover, vermiculidiol, meleagrin, oxaline, glandicolin A and B, and secalonic acid D were identified as metabolites that enable discrimination of Penicillium species by partial least squares discriminant analysis (PLS-DA). Evaluation of the species-specific metabolites produced by P. expansum, P. echinulatum, and P. solitum revealed that the 3 species differed from each other. On the other hand, GC-IT-MS-based dendrogram revealed that P. expansum was clearly classified separately from the other 3 species, and this result correlated with the antioxidant activity of the 4 species: P. expansum had a higher radical scavenging activity than the other 3 species. The metabolites produced in higher amounts in P. expansum were gluconic acid (12, 29, 33); andrastin A (16), B (15), and C (17); chaetoglobosin C (14), a class of sugar (31, 32); and salicylic acid (28). The results of this study demonstrated that metabolite-based chemotaxonomy could be used not only as a classification method but also as a tool for evaluation of species-specific activities.
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Affiliation(s)
- Hyang Yeon Kim
- Department of Bioscience and Biotechnology, Kon-Kuk University, Seoul, Republic of Korea
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17
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Broad-spectrum In vitro antimicrobial activities of Streptomyces sp. strain BCNU 1001. BIOTECHNOL BIOPROC E 2012. [DOI: 10.1007/s12257-011-0151-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Genotoxic and Cytotoxic Safety Evaluation of Papain (Carica papaya L.) Using In Vitro Assays. J Biomed Biotechnol 2010; 2010:197898. [PMID: 20508844 PMCID: PMC2874931 DOI: 10.1155/2010/197898] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2009] [Revised: 03/16/2010] [Accepted: 03/16/2010] [Indexed: 01/18/2023] Open
Abstract
Papain, a phytotherapeutic agent, has been used in the treatment of eschars and as a debriding chemical agent to remove damaged or necrotic tissue of pressure ulcers and gangrene. Its benefits in these treatments are deemed effective, since more than 5000 patients, at the public university hospital at Rio de Janeiro, Brazil, have undergone papain treatment and presented satisfactory results. Despite its extensive use, there is little information about toxic and mutagenic properties of papain. This work evaluated the toxic and mutagenic potential of papain and its potential antioxidant activity against induced-H(2)O(2) oxidative stress in Escherichia coli strains. Cytotoxicity assay, Growth inhibition test, WP2-Mutoxitest and Plasmid-DNA treatment, and agarose gel electrophoresis were used to investigate if papain would present any toxic or mutagenic potential as well as if papain would display antioxidant properties. Papain exhibited negative results for all tests. This agent presented an activity protecting cells against H(2)O(2)-induced mutagenesis.
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Artigot MP, Loiseau N, Laffitte J, Mas-Reguieg L, Tadrist S, Oswald IP, Puel O. Molecular cloning and functional characterization of two CYP619 cytochrome P450s involved in biosynthesis of patulin in Aspergillus clavatus. MICROBIOLOGY (READING, ENGLAND) 2009; 155:1738-1747. [PMID: 19383676 PMCID: PMC2889413 DOI: 10.1099/mic.0.024836-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2008] [Revised: 01/15/2009] [Accepted: 01/15/2009] [Indexed: 12/08/2022]
Abstract
Patulin is an acetate-derived tetraketide mycotoxin produced by several fungal species, especially Aspergillus, Penicillium and Byssochlamys species. The health risks due to patulin consumption by humans have led many countries to regulate it in human food. Previous studies have shown the involvement of cytochrome P450 monooxygenases in the hydroxylation of two precursors of patulin, m-cresol and m-hydroxybenzylalcohol. In the present study, two cytochrome P450 genes were identified in the genome sequence of Aspergillus clavatus, a patulin-producing species. Both mRNAs were strongly co-expressed during patulin production. CYP619C2, encoded by the first gene, consists of 529 aa, while the second cytochrome, CYP619C3, consists of 524 aa. The coding sequences were used to perform the heterologous expression of functional enzymes in Saccharomyces cerevisiae. The bioconversion assays showed that CYP619C3 catalysed the hydroxylation of m-cresol to yield m-hydroxybenzyl alcohol. CYP619C2 catalysed the hydroxylation of m-hydroxybenzyl alcohol and m-cresol to gentisyl alcohol and 2,5-dihydroxytoluene (toluquinol), respectively. Except for the last compound, all enzyme products are known precursors of patulin. Taken together, these data strongly suggest the involvement of CYP619C2 and CYP619C3 in the biosynthesis of patulin. CYP619C2 and CYP619C3 are located near to two other genes involved in patulin biosynthesis, namely the 6-methylsalicylic acid synthase (6msas) and isoepoxydon dehydrogenase (idh) genes. The current data associated with an analysis of the sequence of A. clavatus suggest the presence of a cluster of 15 genes involved in patulin biosynthesis.
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Affiliation(s)
| | - Nicolas Loiseau
- INRA, UR66 Pharmacologie-Toxicologie, F-31931 Toulouse, France
| | - Joelle Laffitte
- INRA, UR66 Pharmacologie-Toxicologie, F-31931 Toulouse, France
| | | | - Souria Tadrist
- INRA, UR66 Pharmacologie-Toxicologie, F-31931 Toulouse, France
| | | | - Olivier Puel
- INRA, UR66 Pharmacologie-Toxicologie, F-31931 Toulouse, France
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Trisuwan K, Rukachaisirikul V, Sukpondma Y, Preedanon S, Phongpaichit S, Rungjindamai N, Sakayaroj J. Epoxydons and a pyrone from the marine-derived fungus Nigrospora sp. PSU-F5. JOURNAL OF NATURAL PRODUCTS 2008; 71:1323-1326. [PMID: 18646829 DOI: 10.1021/np8002595] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Nigrospoxydons A-C (1- 3) and nigrosporapyrone (4), four new metabolites, were isolated from the marine-derived fungus Nigrospora sp. PSU-F5 together with nine known compounds. Their structures were elucidated by spectroscopic methods, mainly 1D and 2D NMR spectroscopic techniques. The antibacterial activity against the standard Staphylococcus aureus ATCC 25923 and methicillin-resistant S. aureus was evaluated.
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Affiliation(s)
- Kongkiat Trisuwan
- Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
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Silva CR, Monteiro MR, Rocha HM, Ribeiro AF, Caldeira-de-Araujo A, Leitão AC, Bezerra RJAC, Pádula M. Assessment of antimutagenic and genotoxic potential of senna (Cassia angustifolia Vahl.) aqueous extract using in vitro assays. Toxicol In Vitro 2008; 22:212-8. [PMID: 17826029 DOI: 10.1016/j.tiv.2007.07.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2007] [Revised: 07/12/2007] [Accepted: 07/16/2007] [Indexed: 10/23/2022]
Abstract
Senna (Cassia angustifolia Vahl.) is widely used as a laxative, although potential side effects, such as toxicity and genotoxicity, have been reported. This study evaluated genotoxic and mutagenic effects of senna aqueous extract (SAE) by means of four experimental assays: inactivation of Escherichia coli cultures; bacterial growth inhibition; reverse mutation test (Mutoxitest) and DNA strand break analysis in plasmid DNA. Our results demonstrated that SAE produces single and double strand breaks in plasmid DNA in a cell free system. On the other hand, SAE was not cytotoxic or mutagenic to Escherichia coli strains tested. In effect, SAE was able to avoid H(2)O(2)-induced mutagenesis and toxicity in Escherichia coli IC203 (uvrA oxyR) and IC205 (uvrA mutM) strains, pointing to a new antioxidant/antimutagenic action of SAE.
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Affiliation(s)
- C R Silva
- Laboratório de Análise de Toxicidade em Fitoterápicos, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, UERJ, Rio de Janeiro 20551-030, Brazil
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Zacarés L, López-Gresa MP, Fayos J, Primo J, Bellés JM, Conejero V. Induction of p-coumaroyldopamine and feruloyldopamine, two novel metabolites, in tomato by the bacterial pathogen Pseudomonas syringae. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2007; 20:1439-48. [PMID: 17977155 DOI: 10.1094/mpmi-20-11-1439] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Inoculation of tomato plants (Solanum lycopersicum cv. Rutgers) with Pseudomonas syringae pv. tomato led to the production of a hypersensitive-like response in this pathovar of tomato. Accumulation of hydroxycinnamic acid amides (HCAA) of tyramine (p-coumaroyltyramine and feruloyltyramine) and dopamine (p-coumaroyldopamine and feruloyldopamine) was detected after bacterial infection. Two of them, p-coumaroyldopamine and feruloyldopamine, are described for the first time. The accumulation of HCAA was preceded by an increment of hydroxycinnamoyl-CoA:tyramine N-hydroxycinnamoyl transferase (THT) gene expression. HCAA also accumulated in transgenic NahG tomato plants overexpressing a bacterial salicylic hydroxylase. However, treatment of plants with the ethylene biosynthesis inhibitor, aminoethoxyvinilglycine, led to a reduction in the accumulation of THT transcripts and HCAA. Together, the results suggest that pathogen-induced induction of ethylene is essential for HCAA synthesis, whereas salicylic acid is not required for this response. In addition, notable antibacterial and antioxidant activities were found for the new HCAA, thus indicating that they could play a role in the defense of tomato plants against bacterial infection.
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Affiliation(s)
- Laura Zacarés
- Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia-Consejo Superior de Investigaciones Científicas, Camino de Vera s/n, 46022 Valencia, Spain
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Lin SJ, Shyue SK, Shih MC, Chu TH, Chen YH, Ku HH, Chen JW, Tam KB, Chen YL. Superoxide dismutase and catalase inhibit oxidized low-density lipoprotein-induced human aortic smooth muscle cell proliferation: Role of cell-cycle regulation, mitogen-activated protein kinases, and transcription factors. Atherosclerosis 2007; 190:124-34. [PMID: 16600249 DOI: 10.1016/j.atherosclerosis.2006.02.044] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2005] [Revised: 02/13/2006] [Accepted: 02/20/2006] [Indexed: 10/24/2022]
Abstract
Several antioxidant enzymes, including copper, zinc-superoxide dismutase (Cu, Zn-SOD) and catalase, have been suggested to be protective against the proliferation of vascular smooth muscle cells exposed to oxidative stress. In the present study, we investigated effects of Cu, Zn-SOD and/or catalase on oxLDL-induced proliferation of, and intracellular signaling in, human aortic smooth muscle cells (HASMCs). HASMCs were transfected with adenovirus carrying the human Cu, Zn-SOD gene and/or the human catalase gene. This resulted in a high level of Cu, Zn-SOD and/or catalase overexpression and decreased oxLDL-induced proliferation. Cu, Zn-SOD and/or catalase also arrested cell cycle progression, which was associated with decreased expression of cyclin D1, cyclin E, CDK2, and CDK4 and upregulation of p21(Cip1) and p27(Kip1). Phosphorylation studies on ERK1/2, JNK, and p38, three major subgroups of mitogen activator protein kinases, demonstrated that Cu, Zn-SOD and/or catalase overexpression suppressed ERK1/2 and JNK phosphorylation. Gel-mobility shift analysis showed that oxLDL caused an increase in the DNA binding activity of activator protein-1 (AP-1) and nuclear factor kappaB (NF-kappaB), which was inhibited by Cu, Zn-SOD and/or catalase overexpression. These results provide the first evidence that overexpression of Cu, Zn-SOD and/or catalase in HASMCs attenuates the cell proliferation caused by oxLDL stimulation and that this inhibitory effect is mediated via downregulation of ERK1/2 and JNK phosphorylation and AP-1 and NF-kappaB inactivation. These observations support the feasibility of the increase of Cu, Zn-SOD and/or catalase expression in human smooth muscle cells as a means of protection against oxidant injury.
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Affiliation(s)
- Shing-Jong Lin
- Institute of Clinical Medicine, National Yang-Ming University, Taiwan, Republic of China
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Smetanina OF, Kalinovskii AI, Khudyakov YV, Moiseenko OP, Pivkin MV, Menzorova NI, Sibirtsev YT, Kuznetsova TA. Metabolites of the Marine Fungus Asperigillus varians KMM 4630. Chem Nat Compd 2005. [DOI: 10.1007/s10600-005-0125-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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