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Masoori L, Khalaf AK, Ezzatkhah F, Balaña-Fouce R, Mahmoudvand H. Promising effects of 1,8 Cineole to control Giardia lamblia infection: Targeting the inflammation, oxidative stress, and infectivity. Acta Trop 2024; 255:107201. [PMID: 38604329 DOI: 10.1016/j.actatropica.2024.107201] [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: 02/26/2024] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/13/2024]
Abstract
Reportedly, synthetic drugs such as metronidazole, furazolidone, tinidazole, and quinacrine are used for the treatment of giardiasis but are associated with adverse effects. In this study, we aimed to investigate the in vitro and in vivo effects of eucalyptol (ECT, 1,8 cineole) alone and in combination with metronidazole (MNZ) on Giardia lamblia. The effects of ECT on cell viability, plasma membrane permeability, and gene expression levels of adenylate cyclase (AK) and extracellular signal kinases 1 and 2 (ERK1 and ERK2) in trophozoites of G. lamblia were assessed. In vivo, the effects of ECT alone and in combination with MNZ were assessed on mice infected with G. lamblia. In addition, the gene expression of inflammatory genes (e.g., TNF-α, IL-1β, and IL-10) and antioxidant genes (catalase (CAT), superoxide dismutase 1 (SOD1), glutathione peroxidase 2 (GPX2)) was determined by real-time PCR. The IC50 values of ECT, MNZ, and ECT+MNZ on trophozoites were 30.2 µg/mL, 21.6 µg/mL, and 8.5 µg/mL, respectively. The estimated Fractional inhibitory concentration index (FICI) values for ECT and MNZ were 0.28 and 0.39, respectively. The application of ECT on G. lamblia trophozoites resulted in a dose-dependent increase in plasma membrane permeability, particularly at concentrations of ½ IC50 and IC50 (P < 0.05). The treatment of infected mice with various doses of ECT, mainly in combination with MNZ for 7 days, resulted in a significant decrease (P < 0.001) in the average number and viability of cysts. ECT, especially when combined with MNZ, caused a significant (P < 0.001) reduction in the expression of TNF-α and IL-6 genes, and an increase (P < 0.05) in the expression of IL-10 genes. ECT alone and mainly in combination with MNZ leads to a significant (P < 0.001) increase in the gene expression of CAT, SOD, and GPX genes. These findings demonstrate that the use of ECT in these doses, even for 14 days, does not have any toxic effects on the function of vital liver and kidney tissues. The study findings confirmed the promising effects of ECT against G. lamblia infection both in vitro and in vivo. Considering the possible mechanisms, ECT increases plasma membrane permeability and reduces the expression levels of infectivity-related genes. In addition, ECT suppresses inflammation and oxidative stress, controlling giardiasis in mice. More studies are needed to clarify these findings.
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Affiliation(s)
- Leila Masoori
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Amal Khudair Khalaf
- Department of Microbiology, College of Medicine, University of Thiqar, Thiqar, Iraq
| | - Fatemeh Ezzatkhah
- Department of Laboratory Sciences, Sirjan School of Medical Sciences, Sirjan, Iran
| | - Rafael Balaña-Fouce
- Departamento de Ciencias Biomédicas, Instituto de Biomedicina (IBIOMED), Campus de Vegazana s/n, Universidad de León 24071 León, Spain
| | - Hossein Mahmoudvand
- Nutritional Health Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran.
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Brandes A, Dunning M, Langland J. Antimicrobial Activity of Individual Volatile Compounds from Various Essential Oils. Molecules 2024; 29:1811. [PMID: 38675631 PMCID: PMC11054172 DOI: 10.3390/molecules29081811] [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: 03/13/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Interest in natural remedies has grown recently due to a variety of public health concerns such as microbial antibiotic resistance. This global health concern necessitates innovative approaches to combat bacterial infections. Building upon established therapeutic uses of essential oils, this research focused on the volatile constituents of essential oils. The volatile antimicrobial activity of these constituents was studied by employing a derivative of a modified disk diffusion assay for quantitative comparisons. This study emphasizes the significance and value of exploring natural compounds as alternatives to traditional antibiotics and provides insights into their mechanisms and applications in contending with bacterial pathogens.
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Affiliation(s)
| | | | - Jeffrey Langland
- The Ric Scalzo Institute for Botanical Research, Sonoran University of Health Sciences, Tempe, AZ 85282, USA; (A.B.); (M.D.)
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Galvez CE, Piro OE, Echeverría GA, Robles NL, Lezama JOG, Sankaran SV, Thamotharan S, Villecco MB, Loandos MDH, Gil DM. Experimental and theoretical insights into the formation of weak hydrogen bonds and H⋯H bonding interactions in the solid-state structure of two eucalyptol derivatives. NEW J CHEM 2022. [DOI: 10.1039/d2nj00428c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the synthesis and X-ray solid-state structure of two eucalyptol derivatives. Both compounds form self-assembled dimers establishing C–H⋯O hydrogen bonds and H⋯H bonding interactions.
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Affiliation(s)
- Carolina E. Galvez
- Cátedra de Química Orgánica II, Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Oscar E. Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata), C. C. 67, 1900, La Plata, Argentina
| | - Gustavo A. Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata e IFLP (CONICET, CCT-La Plata), C. C. 67, 1900, La Plata, Argentina
| | - Norma Lis Robles
- INQUINOA (CONICET – UNT), Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán. Av. Independencia 1800, CP 4000, San Miguel de Tucumán, Argentina
| | - José O. G. Lezama
- INBIOFAL (CONICET – UNT), Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Sankaran Venkatachalam Sankaran
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613 401, India
| | - Subbiah Thamotharan
- Biomolecular Crystallography Laboratory, Department of Bioinformatics, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613 401, India
| | - Margarita B. Villecco
- Cátedra de Química Orgánica II, Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - María del H. Loandos
- Cátedra de Química Orgánica II, Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Diego M. Gil
- INBIOFAL (CONICET – UNT), Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
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4
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Fu GM, Deng MF, Chen Y, Chen YR, Wu SW, Lin P, Huang BJ, Liu CM, Wan Y. Analysis of microbial community, physiochemical indices, and volatile compounds of Chinese te-flavor baijiu daqu produced in different seasons. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:6525-6532. [PMID: 34002396 DOI: 10.1002/jsfa.11324] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 01/17/2021] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Chinese te-flavor baijiu (CTF), the most famous Chinese baijiu in Jiangxi province, China, is made from a unique daqu. Its characteristic style is closely related to the daqu used for fermentation. However, current studies on the effects of different production seasons on microbial communities, physicochemical indices, and volatile compounds in CTF daqu are very rare. RESULTS The relationships of microbial communities, physicochemical indices, and volatile compounds in CTF daqu produced in summer (July and August) and autumn (September and October) were studied. The results of Illumina MiSeq sequencing indicated that there was greater bacterial diversity in the CTF daqu-7 (produced in July) and CTF daqu-8 (produced in August) and greater fungal diversity in the CTF daqu-9 (produced in September) and CTF daqu-10 (produced in October). The physicochemical indices of CTF daqu produced in different seasons were significantly different. It was determined that CTF daqu-9 had the highest esterification and liquefaction abilities. A total of 44 volatile compounds, including alcohols, esters, aldehydes, and ketones were identified in CTF daqu produced during different seasons. Among them, CTF daqu-9 had the greatest alcohol content. CONCLUSION September (early autumn) is the best production period for CTF daqu. The results of the study provide a theoretical basis for the standardized and uniform production of Chinese baijiu. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Gui-Ming Fu
- State Key Laboratory of Food Science and Technology & College of food Science and Technology, Nanchang University, Nanchang, China
| | - Meng-Fei Deng
- State Key Laboratory of Food Science and Technology & College of food Science and Technology, Nanchang University, Nanchang, China
| | - Yan Chen
- State Key Laboratory of Food Science and Technology & College of food Science and Technology, Nanchang University, Nanchang, China
| | - Yan-Ru Chen
- State Key Laboratory of Food Science and Technology & College of food Science and Technology, Nanchang University, Nanchang, China
| | | | - Pei Lin
- Sitir Liquor Co., Ltd, Zhangshu, China
| | | | - Cheng-Mei Liu
- State Key Laboratory of Food Science and Technology & College of food Science and Technology, Nanchang University, Nanchang, China
| | - Yin Wan
- State Key Laboratory of Food Science and Technology & College of food Science and Technology, Nanchang University, Nanchang, China
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Wang J, Zhang H, Xu S, Jiang J, Chen Y, Zhao Z. Synthesis of 1,8‐Cineole Derivatives from 3‐Carene. ChemistrySelect 2021. [DOI: 10.1002/slct.202102025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jing Wang
- National Engineering Lab. for Biomass Chemical Utilization Key and Open Lab. of Forest Chemical Engineering SFA Key Lab. of Biomass Energy and Material Institute of Chemical Industry of Forest Products, CAF Nanjing 210042 P. R. China
- College of Materials Science and Technology Beijing Forestry University Beijing 100083 P. R. China
- Research Institute of Forestry New Technology CAF Beijing 100091 P. R. China
| | - Hongmei Zhang
- National Engineering Lab. for Biomass Chemical Utilization Key and Open Lab. of Forest Chemical Engineering SFA Key Lab. of Biomass Energy and Material Institute of Chemical Industry of Forest Products, CAF Nanjing 210042 P. R. China
- College of Materials Science and Technology Beijing Forestry University Beijing 100083 P. R. China
| | - Shichao Xu
- National Engineering Lab. for Biomass Chemical Utilization Key and Open Lab. of Forest Chemical Engineering SFA Key Lab. of Biomass Energy and Material Institute of Chemical Industry of Forest Products, CAF Nanjing 210042 P. R. China
- Research Institute of Forestry New Technology CAF Beijing 100091 P. R. China
| | - Jianxin Jiang
- College of Materials Science and Technology Beijing Forestry University Beijing 100083 P. R. China
| | - Yuxiang Chen
- National Engineering Lab. for Biomass Chemical Utilization Key and Open Lab. of Forest Chemical Engineering SFA Key Lab. of Biomass Energy and Material Institute of Chemical Industry of Forest Products, CAF Nanjing 210042 P. R. China
- Research Institute of Forestry New Technology CAF Beijing 100091 P. R. China
| | - Zhendong Zhao
- National Engineering Lab. for Biomass Chemical Utilization Key and Open Lab. of Forest Chemical Engineering SFA Key Lab. of Biomass Energy and Material Institute of Chemical Industry of Forest Products, CAF Nanjing 210042 P. R. China
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6
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Can Eucalyptol Replace Antibiotics? Molecules 2021; 26:molecules26164933. [PMID: 34443521 PMCID: PMC8398027 DOI: 10.3390/molecules26164933] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/11/2021] [Accepted: 08/11/2021] [Indexed: 11/17/2022] Open
Abstract
One of the primary reasons for the search for new antimicrobial agents is the increasing and spreading resistance of microorganisms to previously used drugs. This is particularly important in the case of rapidly progressing infections that require the rapid administration of an appropriately selected antibiotic. However, along with the administration of antibiotics, complications in the disease-weakened body may arise in the form of systemic mycoses, viral infections, and protozoan infections. Therefore, there is an increasing interest among researchers focusing on the use of naturally occurring terpenic compounds in stand-alone or combined therapies with antibiotics. In this publication, the aim of our work is to present the results of a literature review on the antimicrobial activity of eucalyptol.
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Galvez CE, Rocha M, Villecco MB, Echeverría GA, Piro OE, Loandos MDH, Gil DM. Role of hydrogen bonds and weak non-covalent interactions in the supramolecular assembly of 9-hydroxyeucaliptol: crystal structure, Hirshfeld surface analysis, and DFT calculations. J Mol Model 2021; 27:13. [PMID: 33403477 DOI: 10.1007/s00894-020-04633-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/01/2020] [Indexed: 11/29/2022]
Abstract
The compound 1,3,3-trimethyl-2-oxabicyclo[2.2.2]octan-9-ol (9-hydroxyeucaliptol) has been prepared and characterized by single-crystal X-ray diffraction analysis, infrared, Raman, and UV-visible spectroscopies. The molecular geometry of the title compound was also investigated theoretically by density functional theory (DFT) calculations to compare with the experimental data. The substance crystallizes in the trigonal crystal system, space group P32 with Z = 9 molecules per unit cell. There are three independent molecules in the crystal asymmetric unit having the same chirality and showing some differences in the orientation of the H-atom of the hydroxyl group. The crystal structure of 9-hydroxyeucaliptol shows that the hydroxyl group presents an anti-conformation with respect to the O-atom of the ether group. The crystal packing of 9-hydroxyeucaliptol is stabilized by intermolecular O-H···O hydrogen bonds involving the hydroxyl groups of different molecules, which play a decisive role in the preferred conformation adopted in solid state. The intermolecular interactions observed in solid state were also studied through the Hirshfeld surface analysis and quantum theory of atoms in molecules (QTAIM) approaches. Energy framework calculations have also been carried out to analyze and visualize the topology of the supramolecular assembly, and the results indicate a significant contribution from electrostatic energy over the dispersion.
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Affiliation(s)
- Carolina E Galvez
- Cátedra de Química Orgánica II. Instituto de Química Orgánica. Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Mariana Rocha
- INBIOFAL (CONICET-UNT). Instituto de Química Orgánica. Facultad de Bioquímica, Química y Farmacia, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Margarita B Villecco
- Cátedra de Química Orgánica II. Instituto de Química Orgánica. Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Gustavo A Echeverría
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and Institute IFLP (CONICET, CCT-La Plata), C. C. 67, 1900, La Plata, Argentina
| | - Oscar E Piro
- Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata and Institute IFLP (CONICET, CCT-La Plata), C. C. 67, 1900, La Plata, Argentina
| | - María Del H Loandos
- Cátedra de Química Orgánica II. Instituto de Química Orgánica. Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina
| | - Diego M Gil
- INBIOFAL (CONICET-UNT). Instituto de Química Orgánica. Facultad de Bioquímica, Química y Farmacia, Ayacucho 471, T4000INI, San Miguel de Tucumán, Argentina.
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8
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Gharib R, Jemâa JMB, Charcosset C, Fourmentin S, Greige‐Gerges H. Retention of Eucalyptol, a Natural Volatile Insecticide, in Delivery Systems Based on Hydroxypropyl‐β‐Cyclodextrin and Liposomes. EUR J LIPID SCI TECH 2020. [DOI: 10.1002/ejlt.201900402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Riham Gharib
- Bioactive Molecules Research Laboratory Faculty of Sciences Lebanese University B.P. 90656 Jdaidet El‐Metn Lebanon
| | - Jouda Mediouni Ben Jemâa
- Laboratory of Biotechnology Applied to Agriculture National Agricultural Research Institute of Tunisia University of Carthage Rue Hedi Karray Ariana Tunis 2049 Tunisia
| | - Catherine Charcosset
- Laboratoire d'Automatique et de Génie des Procédés Université Claude Bernard Lyon 1 UMR 5007, CNRS, CPE, 43 bd du 11 Novembre Villeurbanne Cedex 691622 France
| | - Sophie Fourmentin
- Unité de Chimie Environnementale et Interactions sur le Vivant EA 4492 SFR Condorcet FR CNRS 3417, Université du Littoral‐Côte d'Opale Dunkerque 59140 France
| | - Hélène Greige‐Gerges
- Bioactive Molecules Research Laboratory Faculty of Sciences Lebanese University B.P. 90656 Jdaidet El‐Metn Lebanon
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Selective hydroxylation of 1,8- and 1,4-cineole using bacterial P450 variants. Arch Biochem Biophys 2019; 663:54-63. [DOI: 10.1016/j.abb.2018.12.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 10/24/2018] [Accepted: 12/21/2018] [Indexed: 01/10/2023]
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10
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Unterweger B, Drinkwater N, Johanesen P, Lyras D, Dumsday GJ, McGowan S. X‐ray crystal structure of cytochrome P450 monooxygenase CYP101J2 from
Sphingobium yanoikuyae
strain B2. Proteins 2017; 85:945-950. [DOI: 10.1002/prot.25227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 11/17/2016] [Accepted: 11/21/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Birgit Unterweger
- Infection and Immunity ProgramBiomedicine Discovery Institute, Department of Microbiology, Monash UniversityClayton Victoria3800
- CSIRO ManufacturingClayton Victoria Australia
| | - Nyssa Drinkwater
- Infection and Immunity ProgramBiomedicine Discovery Institute, Department of Microbiology, Monash UniversityClayton Victoria3800
| | - Priscilla Johanesen
- Infection and Immunity ProgramBiomedicine Discovery Institute, Department of Microbiology, Monash UniversityClayton Victoria3800
| | - Dena Lyras
- Infection and Immunity ProgramBiomedicine Discovery Institute, Department of Microbiology, Monash UniversityClayton Victoria3800
| | | | - Sheena McGowan
- Infection and Immunity ProgramBiomedicine Discovery Institute, Department of Microbiology, Monash UniversityClayton Victoria3800
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CYP101J2, CYP101J3, and CYP101J4, 1,8-Cineole-Hydroxylating Cytochrome P450 Monooxygenases from Sphingobium yanoikuyae Strain B2. Appl Environ Microbiol 2016; 82:6507-6517. [PMID: 27590809 DOI: 10.1128/aem.02067-16] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 08/12/2016] [Indexed: 01/21/2023] Open
Abstract
We report the isolation and characterization of three new cytochrome P450 monooxygenases: CYP101J2, CYP101J3, and CYP101J4. These P450s were derived from Sphingobium yanoikuyae B2, a strain that was isolated from activated sludge based on its ability to fully mineralize 1,8-cineole. Genome sequencing of this strain in combination with purification of native 1,8-cineole-binding proteins enabled identification of 1,8-cineole-binding P450s. The P450 enzymes were cloned, heterologously expressed (N-terminally His6 tagged) in Escherichia coli BL21(DE3), purified, and spectroscopically characterized. Recombinant whole-cell biotransformation in E. coli demonstrated that all three P450s hydroxylate 1,8-cineole using electron transport partners from E. coli to yield a product putatively identified as (1S)-2α-hydroxy-1,8-cineole or (1R)-6α-hydroxy-1,8-cineole. The new P450s belong to the CYP101 family and share 47% and 44% identity with other 1,8-cineole-hydroxylating members found in Novosphingobium aromaticivorans and Pseudomonas putida Compared to P450cin (CYP176A1), a 1,8-cineole-hydroxylating P450 from Citrobacter braakii, these enzymes share less than 30% amino acid sequence identity and hydroxylate 1,8-cineole in a different orientation. Expansion of the enzyme toolbox for modification of 1,8-cineole creates a starting point for use of hydroxylated derivatives in a range of industrial applications. IMPORTANCE CYP101J2, CYP101J3, and CYP101J4 are cytochrome P450 monooxygenases from S. yanoikuyae B2 that hydroxylate the monoterpenoid 1,8-cineole. These enzymes not only play an important role in microbial degradation of this plant-based chemical but also provide an interesting route to synthesize oxygenated 1,8-cineole derivatives for applications as natural flavor and fragrance precursors or incorporation into polymers. The P450 cytochromes also provide an interesting basis from which to compare other enzymes with a similar function and expand the CYP101 family. This could eventually provide enough bacterial parental enzymes with similar amino acid sequences to enable in vitro evolution via DNA shuffling.
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Mi J, Schewe H, Buchhaupt M, Holtmann D, Schrader J. Efficient hydroxylation of 1,8-cineole with monoterpenoid-resistant recombinant Pseudomonas putida GS1. World J Microbiol Biotechnol 2016; 32:112. [PMID: 27263007 DOI: 10.1007/s11274-016-2071-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 04/23/2016] [Indexed: 10/21/2022]
Abstract
In this work, monoterpenoid hydroxylation with Pseudomonas putida GS1 and KT2440 were investigated as host strains, and the cytochrome P450 monooxygenase CYP176A1 (P450cin) and its native redox partner cindoxin (CinC) from Citrobacter braakii were introduced in P. putida to catalyze the stereoselective hydroxylation of 1,8-cineole to (1R)-6β-hydroxy-1,8-cineole. Growth experiments in the presence of 1,8-cineole confirmed pseudomonads' superior resilience compared to E. coli. Whole-cell P. putida harboring P450cin with and without CinC were capable of hydroxylating 1,8-cineole, whereas coexpression of CinC has been shown to accelerate this bioconversion. Under the same conditions, P. putida GS1 produced more than twice the amount of heterologous P450cin and bioconversion product than P. putida KT2440. A concentration of 1.1 ± 0.1 g/L (1R)-6β-hydroxy-1,8-cineole was obtained within 55 h in shake flasks and 13.3 ± 1.9 g/L in 89 h in a bioreactor, the latter of which corresponds to a yield YP/S of 79 %. To the authors' knowledge, this is the highest product titer for a P450 based whole-cell monoterpene oxyfunctionalization reported so far. These results show that solvent-tolerant P. putida GS1 can be used as a highly efficient recombinant whole-cell biocatalyst for a P450 monooxygenase-based valorization of monoterpenoids.
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Affiliation(s)
- Jia Mi
- Biochemical Engineering, DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486, Frankfurt, Germany
| | - Hendrik Schewe
- Biochemical Engineering, DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486, Frankfurt, Germany
| | - Markus Buchhaupt
- Biochemical Engineering, DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486, Frankfurt, Germany
| | - Dirk Holtmann
- Biochemical Engineering, DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486, Frankfurt, Germany
| | - Jens Schrader
- Biochemical Engineering, DECHEMA-Forschungsinstitut, Theodor-Heuss-Allee 25, 60486, Frankfurt, Germany.
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