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Hamel L, Tardif R, Poirier‐Gravel F, Rasoolizadeh A, Brosseau C, Giroux G, Lucier J, Goulet M, Barrada A, Paré M, Roussel É, Comeau M, Lavoie P, Moffett P, Michaud D, D'Aoust M. Molecular responses of agroinfiltrated Nicotiana benthamiana leaves expressing suppressor of silencing P19 and influenza virus-like particles. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:1078-1100. [PMID: 38041470 PMCID: PMC11022802 DOI: 10.1111/pbi.14247] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 11/06/2023] [Accepted: 11/13/2023] [Indexed: 12/03/2023]
Abstract
The production of influenza vaccines in plants is achieved through transient expression of viral hemagglutinins (HAs), a process mediated by the bacterial vector Agrobacterium tumefaciens. HA proteins are then produced and matured through the secretory pathway of plant cells, before being trafficked to the plasma membrane where they induce formation of virus-like particles (VLPs). Production of VLPs unavoidably impacts plant cells, as do viral suppressors of RNA silencing (VSRs) that are co-expressed to increase recombinant protein yields. However, little information is available on host molecular responses to foreign protein expression. This work provides a comprehensive overview of molecular changes occurring in Nicotiana benthamiana leaf cells transiently expressing the VSR P19, or co-expressing P19 and an influenza HA. Our data identifies general responses to Agrobacterium-mediated expression of foreign proteins, including shutdown of chloroplast gene expression, activation of oxidative stress responses and reinforcement of the plant cell wall through lignification. Our results also indicate that P19 expression promotes salicylic acid (SA) signalling, a process dampened by co-expression of the HA protein. While reducing P19 level, HA expression also induces specific signatures, with effects on lipid metabolism, lipid distribution within membranes and oxylipin-related signalling. When producing VLPs, dampening of P19 responses thus likely results from lower expression of the VSR, crosstalk between SA and oxylipin pathways, or a combination of both outcomes. Consistent with the upregulation of oxidative stress responses, we finally show that reduction of oxidative stress damage through exogenous application of ascorbic acid improves plant biomass quality during production of VLPs.
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Affiliation(s)
| | | | | | - Asieh Rasoolizadeh
- Centre SÈVE, Faculté des Sciences, Département de BiologieUniversité de SherbrookeSherbrookeQuébecCanada
| | - Chantal Brosseau
- Centre SÈVE, Faculté des Sciences, Département de BiologieUniversité de SherbrookeSherbrookeQuébecCanada
| | - Geneviève Giroux
- Centre SÈVE, Faculté des Sciences, Département de BiologieUniversité de SherbrookeSherbrookeQuébecCanada
| | - Jean‐François Lucier
- Centre SÈVE, Faculté des Sciences, Département de BiologieUniversité de SherbrookeSherbrookeQuébecCanada
| | - Marie‐Claire Goulet
- Centre de Recherche et d'innovation sur les Végétaux, Département de PhytologieUniversité LavalQuébecQuébecCanada
| | - Adam Barrada
- Centre de Recherche et d'innovation sur les Végétaux, Département de PhytologieUniversité LavalQuébecQuébecCanada
| | | | | | | | | | - Peter Moffett
- Centre SÈVE, Faculté des Sciences, Département de BiologieUniversité de SherbrookeSherbrookeQuébecCanada
| | - Dominique Michaud
- Centre de Recherche et d'innovation sur les Végétaux, Département de PhytologieUniversité LavalQuébecQuébecCanada
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de Medina P, Ayadi S, Diallo K, Buñay J, Pucheu L, Soulès R, Record M, Brillouet S, Vija L, Courbon F, Silvente-Poirot S, Poirot M. The Cholesterol-5,6-Epoxide Hydrolase: A Metabolic Checkpoint in Several Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1440:149-161. [PMID: 38036879 DOI: 10.1007/978-3-031-43883-7_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Cholesterol-5,6-epoxides (5,6-ECs) are oxysterols (OS) that have been linked to several pathologies including cancers and neurodegenerative diseases. 5,6-ECs can be produced from cholesterol by several mechanisms including reactive oxygen species, lipoperoxidation, and cytochrome P450 enzymes. 5,6-ECs exist as two different diastereoisomers: 5,6α-EC and 5,6β-EC with different metabolic fates. They can be produced as a mixture or as single products of epoxidation. The epoxide ring of 5,6α-EC and 5,6β-EC is very stable and 5,6-ECs are prone to hydration by the cholesterol-5,6-epoxide hydrolase (ChEH) to give cholestane-3β,5α,6β-triol, which can be further oxidized into oncosterone. 5,6α-EC is prone to chemical and enzymatic conjugation reactions leading to bioactive compounds such as dendrogenins, highlighting the existence of a new metabolic branch on the cholesterol pathway centered on 5,6α-EC. We will summarize in this chapter current knowledge on this pathway which is controlled by the ChEH.
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Affiliation(s)
- Philippe de Medina
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France
- Equipe labellisée par la Ligue Nationale contre le Cancer, Toulouse, France
- French Network for Nutrition Physical Activity and Cancer Research (NACRe Network), Jouy-en-Josas, France
| | - Silia Ayadi
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France
- Equipe labellisée par la Ligue Nationale contre le Cancer, Toulouse, France
- French Network for Nutrition Physical Activity and Cancer Research (NACRe Network), Jouy-en-Josas, France
| | - Khadijetou Diallo
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France
- Equipe labellisée par la Ligue Nationale contre le Cancer, Toulouse, France
- French Network for Nutrition Physical Activity and Cancer Research (NACRe Network), Jouy-en-Josas, France
| | - Julio Buñay
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France
- Equipe labellisée par la Ligue Nationale contre le Cancer, Toulouse, France
- French Network for Nutrition Physical Activity and Cancer Research (NACRe Network), Jouy-en-Josas, France
| | - Laly Pucheu
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France
- Equipe labellisée par la Ligue Nationale contre le Cancer, Toulouse, France
- French Network for Nutrition Physical Activity and Cancer Research (NACRe Network), Jouy-en-Josas, France
| | - Regis Soulès
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France
- Equipe labellisée par la Ligue Nationale contre le Cancer, Toulouse, France
- French Network for Nutrition Physical Activity and Cancer Research (NACRe Network), Jouy-en-Josas, France
| | - Michel Record
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France
- Equipe labellisée par la Ligue Nationale contre le Cancer, Toulouse, France
- French Network for Nutrition Physical Activity and Cancer Research (NACRe Network), Jouy-en-Josas, France
| | - Severine Brillouet
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France
- Equipe labellisée par la Ligue Nationale contre le Cancer, Toulouse, France
- French Network for Nutrition Physical Activity and Cancer Research (NACRe Network), Jouy-en-Josas, France
- Department of Radiopharmacy, Institut Universitaire du Cancer Toulouse - Oncopole, Toulouse, France
| | - Lavinia Vija
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France
- Equipe labellisée par la Ligue Nationale contre le Cancer, Toulouse, France
- French Network for Nutrition Physical Activity and Cancer Research (NACRe Network), Jouy-en-Josas, France
- Department of Medical Imaging, Institut Universitaire du Cancer Toulouse - Oncopole, Toulouse, France
| | - Frederic Courbon
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France
- Equipe labellisée par la Ligue Nationale contre le Cancer, Toulouse, France
- French Network for Nutrition Physical Activity and Cancer Research (NACRe Network), Jouy-en-Josas, France
- Department of Medical Imaging, Institut Universitaire du Cancer Toulouse - Oncopole, Toulouse, France
| | - Sandrine Silvente-Poirot
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France
- Equipe labellisée par la Ligue Nationale contre le Cancer, Toulouse, France
- French Network for Nutrition Physical Activity and Cancer Research (NACRe Network), Jouy-en-Josas, France
| | - Marc Poirot
- Cancer Research Center of Toulouse (CRCT), Inserm, CNRS, University of Toulouse, Team INOV: "Cholesterol Metabolism and Therapeutic Innovations", Toulouse, France.
- Equipe labellisée par la Ligue Nationale contre le Cancer, Toulouse, France.
- French Network for Nutrition Physical Activity and Cancer Research (NACRe Network), Jouy-en-Josas, France.
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Ninck S, Halder V, Krahn JH, Beisser D, Resch S, Dodds I, Scholtysik R, Bormann J, Sewald L, Gupta MD, Heilmann G, Bhandari DD, Morimoto K, Buscaill P, Hause B, van der Hoorn RAL, Kaschani F, Kaiser M. Chemoproteomics Reveals the Pan-HER Kinase Inhibitor Neratinib To Target an Arabidopsis Epoxide Hydrolase Related to Phytohormone Signaling. ACS Chem Biol 2023; 18:1076-1088. [PMID: 37115018 DOI: 10.1021/acschembio.2c00322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Plant phytohormone pathways are regulated by an intricate network of signaling components and modulators, many of which still remain unknown. Here, we report a forward chemical genetics approach for the identification of functional SA agonists in Arabidopsis thaliana that revealed Neratinib (Ner), a covalent pan-HER kinase inhibitor drug in humans, as a modulator of SA signaling. Instead of a protein kinase, chemoproteomics unveiled that Ner covalently modifies a surface-exposed cysteine residue of Arabidopsis epoxide hydrolase isoform 7 (AtEH7), thereby triggering its allosteric inhibition. Physiologically, the Ner application induces jasmonate metabolism in an AtEH7-dependent manner as an early response. In addition, it modulates PATHOGENESIS RELATED 1 (PR1) expression as a hallmark of SA signaling activation as a later effect. AtEH7, however, is not the exclusive target for this physiological readout induced by Ner. Although the underlying molecular mechanisms of AtEH7-dependent modulation of jasmonate signaling and Ner-induced PR1-dependent activation of SA signaling and thus defense response regulation remain unknown, our present work illustrates the powerful combination of forward chemical genetics and chemical proteomics for identifying novel phytohormone signaling modulatory factors. It also suggests that marginally explored metabolic enzymes such as epoxide hydrolases may have further physiological roles in modulating signaling.
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Affiliation(s)
- Sabrina Ninck
- Department of Chemical Biology, ZMB, Faculty of Biology, University of Duisburg-Essen, Universitätsstr. 2, 45117 Essen, Germany
| | - Vivek Halder
- Department of Chemical Biology, ZMB, Faculty of Biology, University of Duisburg-Essen, Universitätsstr. 2, 45117 Essen, Germany
- Chemical Biology Laboratory, Max-Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Cologne, Germany
| | - Jan H Krahn
- Department of Chemical Biology, ZMB, Faculty of Biology, University of Duisburg-Essen, Universitätsstr. 2, 45117 Essen, Germany
| | - Daniela Beisser
- Department of Biodiversity, Faculty of Biology, University of Duisburg-Essen, Universitätsstr. 5, 45117 Essen, Germany
| | - Sarah Resch
- Department of Chemical Biology, ZMB, Faculty of Biology, University of Duisburg-Essen, Universitätsstr. 2, 45117 Essen, Germany
| | - Isobel Dodds
- The Plant Chemetics Laboratory, Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3RB, U.K
| | - René Scholtysik
- Genomics and Transcriptomics Facility, Institute for Cell Biology (Tumour Research), University of Duisburg-Essen, Virchowstr. 173, 45122 Essen, Germany
| | - Jenny Bormann
- Department of Chemical Biology, ZMB, Faculty of Biology, University of Duisburg-Essen, Universitätsstr. 2, 45117 Essen, Germany
| | - Leonard Sewald
- Department of Chemical Biology, ZMB, Faculty of Biology, University of Duisburg-Essen, Universitätsstr. 2, 45117 Essen, Germany
| | - Mainak D Gupta
- Department of Molecular Biology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Geronimo Heilmann
- Department of Chemical Biology, ZMB, Faculty of Biology, University of Duisburg-Essen, Universitätsstr. 2, 45117 Essen, Germany
| | - Deepak D Bhandari
- Department of Plant-Microbe Interactions, Max-Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, Cologne 50829, Germany
| | - Kyoko Morimoto
- The Plant Chemetics Laboratory, Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3RB, U.K
| | - Pierre Buscaill
- The Plant Chemetics Laboratory, Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3RB, U.K
| | - Bettina Hause
- Department of Metabolic and Cell Biology, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle, Germany
| | - Renier A L van der Hoorn
- The Plant Chemetics Laboratory, Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3RB, U.K
| | - Farnusch Kaschani
- Department of Chemical Biology, ZMB, Faculty of Biology, University of Duisburg-Essen, Universitätsstr. 2, 45117 Essen, Germany
| | - Markus Kaiser
- Department of Chemical Biology, ZMB, Faculty of Biology, University of Duisburg-Essen, Universitätsstr. 2, 45117 Essen, Germany
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4
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Stinson LF, George AD. Human Milk Lipids and Small Metabolites: Maternal and Microbial Origins. Metabolites 2023; 13:metabo13030422. [PMID: 36984862 PMCID: PMC10054125 DOI: 10.3390/metabo13030422] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/05/2023] [Accepted: 03/10/2023] [Indexed: 03/16/2023] Open
Abstract
Although there has been limited application in the field to date, human milk omics research continues to gain traction. Human milk lipidomics and metabolomics research is particularly important, given the significance of milk lipids and metabolites for infant health. For researchers conducting compositional milk analyses, it is important to consider the origins of these compounds. The current review aims to provide a summary of the existing evidence on the sources of human milk lipids and small metabolites. Here, we describe five major sources of milk lipids and metabolites: de novo synthesis from mammary cells, production by the milk microbiota, dietary consumption, release from non-mammary tissue, and production by the gut microbiota. We synthesize the literature to provide evidence and understanding of these pathways in the context of mammary gland biology. We recommend future research focus areas to elucidate milk lipid and small metabolite synthesis and transport pathways. Better understanding of the origins of human milk lipids and metabolites is important to improve translation of milk omics research, particularly regarding the modulation of these important milk components to improve infant health outcomes.
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Affiliation(s)
- Lisa F. Stinson
- School of Molecular Sciences, The University of Western Australia, Perth 6009, Australia
| | - Alexandra D. George
- Metabolomics Laboratory, Baker Heart and Diabetes Institute, Melbourne 3004, Australia
- Correspondence:
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5
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Zhang J, Luan ZL, Huo XK, Zhang M, Morisseau C, Sun CP, Hammock BD, Ma XC. Direct targeting of sEH with alisol B alleviated the apoptosis, inflammation, and oxidative stress in cisplatin-induced acute kidney injury. Int J Biol Sci 2023; 19:294-310. [PMID: 36594097 PMCID: PMC9760444 DOI: 10.7150/ijbs.78097] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 11/08/2022] [Indexed: 11/24/2022] Open
Abstract
Acute kidney injury (AKI) is a pathological condition characterized by a rapid decrease in glomerular filtration rate and nitrogenous waste accumulation during hemodynamic regulation. Alisol B, from Alisma orientale, displays anti-tumor, anti-complement, and anti-inflammatory effects. However, its effect and action mechanism on AKI is still unclear. Herein, alisol B significantly attenuated cisplatin (Cis)-induced renal tubular apoptosis through decreasing expressions levels of cleaved-caspase 3 and cleaved-PARP and the ratio of Bax/Bcl-2 depended on the p53 pathway. Alisol B also alleviated Cis-induced inflammatory response (e.g. the increase of ICAM-1, MCP-1, COX-2, iNOS, IL-6, and TNF-α) and oxidative stress (e.g. the decrease of SOD and GSH, the decrease of HO-1, GCLC, GCLM, and NQO-1) through the NF-κB and Nrf2 pathways. In a target fishing experiment, alisol B bound to soluble epoxide hydrolase (sEH) as a direct cellular target through the hydrogen bond with Gln384, which was further supported by inhibition kinetics and surface plasmon resonance (equilibrium dissociation constant, K D = 1.32 μM). Notably, alisol B enhanced levels of epoxyeicosatrienoic acids and decreased levels of dihydroxyeicosatrienoic acids, indicating that alisol B reduced the sEH activity in vivo. In addition, sEH genetic deletion alleviated Cis-induced AKI and abolished the protective effect of alisol B in Cis-induced AKI as well. These findings indicated that alisol B targeted sEH to alleviate Cis-induced AKI via GSK3β-mediated p53, NF-κB, and Nrf2 signaling pathways and could be used as a potential therapeutic agent in the treatment of AKI.
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Affiliation(s)
- Juan Zhang
- College of Pharmacy, Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China.,School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen 518061, China
| | - Zhi-Lin Luan
- College of Pharmacy, Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China
| | - Xiao-Kui Huo
- College of Pharmacy, Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China
| | - Min Zhang
- College of Pharmacy, Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China
| | - Christophe Morisseau
- Department of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, United States
| | - Cheng-Peng Sun
- College of Pharmacy, Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China.,✉ Corresponding authors: College of Pharmacy, Second Affiliated Hospital, Dalian Medical University, Dalian, China. E-mail: (C.P. Sun); (X.C. Ma). Department of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, United States. E-mail: (B.D. Hammock)
| | - Bruce D. Hammock
- Department of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, United States.,✉ Corresponding authors: College of Pharmacy, Second Affiliated Hospital, Dalian Medical University, Dalian, China. E-mail: (C.P. Sun); (X.C. Ma). Department of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, United States. E-mail: (B.D. Hammock)
| | - Xiao-Chi Ma
- College of Pharmacy, Second Affiliated Hospital, Dalian Medical University, Dalian 116044, China.,✉ Corresponding authors: College of Pharmacy, Second Affiliated Hospital, Dalian Medical University, Dalian, China. E-mail: (C.P. Sun); (X.C. Ma). Department of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, United States. E-mail: (B.D. Hammock)
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6
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Crosstalk between Depression and Breast Cancer via Hepatic Epoxide Metabolism: A Central Comorbidity Mechanism. Molecules 2022; 27:molecules27217269. [PMID: 36364213 PMCID: PMC9655600 DOI: 10.3390/molecules27217269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022] Open
Abstract
Breast cancer (BC) is a serious global challenge, and depression is one of the risk factors and comorbidities of BC. Recently, the research on the comorbidity of BC and depression has focused on the dysfunction of the hypothalamic–pituitary–adrenal axis and the persistent stimulation of the inflammatory response. However, the further mechanisms for comorbidity remain unclear. Epoxide metabolism has been shown to have a regulatory function in the comorbid mechanism with scattered reports. Hence, this article reviews the role of epoxide metabolism in depression and BC. The comprehensive review discloses the imbalance in epoxide metabolism and its downstream effect shared by BC and depression, including overexpression of inflammation, upregulation of toxic diols, and disturbed lipid metabolism. These downstream effects are mainly involved in the construction of the breast malignancy microenvironment through liver regulation. This finding provides new clues on the mechanism of BC and depression comorbidity, suggesting in particular a potential relationship between the liver and BC, and provides potential evidence of comorbidity for subsequent studies on the pathological mechanism.
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Attafi IM, Bakheet SA, Ahmad SF, Belali OM, Alanazi FE, Aljarboa SA, Al-Alallah IA, Korashy HM. Lead Nitrate Induces Inflammation and Apoptosis in Rat Lungs Through the Activation of NF-κB and AhR Signaling Pathways. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:64959-64970. [PMID: 35482242 PMCID: PMC9481511 DOI: 10.1007/s11356-022-19980-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 03/25/2022] [Indexed: 05/28/2023]
Abstract
Lead (Pb) is one of the most frequent hazardous air contaminants, where the lungs are particularly vulnerable to its toxicity. However, the Pb distribution and its impact on lung inflammation/apoptosis and particularly the involvement of nuclear factor kappa B (NF-κB) and aryl hydrocarbon receptor (AhR) signaling pathways in Pb-induced lung toxicity have not yet been fully investigated. Adult male Wistar albino rats were exposed to Pb nitrate 25, 50, and 100 mg/kg b.w. orally for 3 days. The histopathological changes of several rat organs were analyzed using hematoxylin and eosin staining. The concentrations of Pb ion in different organ tissues were quantified using inductive coupled plasma mass spectrometry, while gas chromatography-mass spectrometry was used to identify organic compounds. The changes in the mRNA and protein expression levels of inflammatory and apoptotic genes in response to Pb exposure were quantified by using RT-PCR and Western blot analyses, respectively. Treatment of rats with Pb for three consecutive days significantly increased the accumulation of Pb in lung tissues causing severe interstitial inflammation. Pb treatment also increased the percentage of lung apoptotic cells and modulated apoptotic genes (Bc2, p53, and TGF-α), inflammatory markers (IL-4, IL-10, TNF-α), and oxidative stress biomarkers (iNOS, CYP1A1, EphX) in rat lung tissues. These effects were associated with a significant increase in organic compounds, such as 3-nitrotyrosine and myeloperoxidase, and some inorganic elements, such as selenium. Importantly, the Pb-induced lung inflammation and apoptosis were associated with a proportional increase in the expression of NF-κB and AhR mRNAs and proteins. These findings clearly show that Pb induces severe inflammation and apoptosis in rat lungs and suggest that NF-κB and AhR may play a role in Pb-induced lung toxicity.
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Affiliation(s)
- Ibraheem M Attafi
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
- Poison Control and Medical Forensic Chemistry Center, Jazan Health Affairs, Jazan, Saudi Arabia
| | - Saleh A Bakheet
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sheikh F Ahmad
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Osamah M Belali
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
- Aseer Central Hospital, Asser health affairs, Ministry of Health, Abha, Saudi Arabia
| | - Fawaz E Alanazi
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
- Security Forces Hospital Program, Riyadh, Saudi Arabia
| | - Suliman A Aljarboa
- Central Laboratory, Research Center, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ibrahim A Al-Alallah
- Pathology and Clinical Laboratories Medicine, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Hesham M Korashy
- Department of Pharmaceutical Sciences, College of Pharmacy, QU Health, Qatar University, Doha, Qatar.
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8
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Soluble Epoxide Hydrolase and Diabetes Complications. Int J Mol Sci 2022; 23:ijms23116232. [PMID: 35682911 PMCID: PMC9180978 DOI: 10.3390/ijms23116232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/28/2022] [Accepted: 05/30/2022] [Indexed: 02/04/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) can result in microvascular complications such as neuropathy, retinopathy, nephropathy, and cerebral small vessel disease, and contribute to macrovascular complications, such as heart failure, peripheral arterial disease, and large vessel stroke. T2DM also increases the risks of depression and dementia for reasons that remain largely unclear. Perturbations in the cytochrome P450-soluble epoxide hydrolase (CYP-sEH) pathway have been implicated in each of these diabetes complications. Here we review evidence from the clinical and animal literature suggesting the involvement of the CYP-sEH pathway in T2DM complications across organ systems, and highlight possible mechanisms (e.g., inflammation, fibrosis, mitochondrial function, endoplasmic reticulum stress, the unfolded protein response and autophagy) that may be relevant to the therapeutic potential of the pathway. These mechanisms may be broadly relevant to understanding, preventing and treating microvascular complications affecting the brain and other organ systems in T2DM.
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9
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Daggubati V, Raleigh DR, Sever N. Sterol regulation of developmental and oncogenic Hedgehog signaling. Biochem Pharmacol 2022; 196:114647. [PMID: 34111427 PMCID: PMC8648856 DOI: 10.1016/j.bcp.2021.114647] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/02/2021] [Accepted: 06/04/2021] [Indexed: 02/03/2023]
Abstract
The Hedgehog (Hh) family of lipid-modified signaling proteins directs embryonic tissue patterning and postembryonic tissue homeostasis, and dysregulated Hh signaling drives familial and sporadic cancers. Hh ligands bind to and inhibit the tumor suppressor Patched and allow the oncoprotein Smoothened (SMO) to accumulate in cilia, which in turn activates the GLI family of transcription factors. Recent work has demonstrated that endogenous cholesterol and oxidized cholesterol derivatives (oxysterols) bind and modulate SMO activity. Here we discuss the myriad sterols that activate or inhibit the Hh pathway, with emphasis on endogenous 24(S),25-epoxycholesterol and 3β,5α-dihydroxycholest-7-en-6-one, and propose models of sterol regulation of SMO. Synthetic inhibitors of SMO have long been the focus of drug development efforts. Here, we discuss the possible utility of steroidal SMO ligands or inhibitors of enzymes involved in sterol metabolism as cancer therapeutics.
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Affiliation(s)
- Vikas Daggubati
- Departments of Radiation Oncology and Neurological Surgery, and Biomedical Sciences Graduate Program, University of California, San Francisco, CA, USA,Medical Scientist Training Program, University of California, San Francisco, CA, USA
| | - David R. Raleigh
- Departments of Radiation Oncology and Neurological Surgery, and Biomedical Sciences Graduate Program, University of California, San Francisco, CA, USA
| | - Navdar Sever
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA,Corresponding author: Navdar Sever, Department of Cell Biology, Harvard Medical School, 240 Longwood Avenue, LHRRB 405, Boston, MA 02115, USA, , Telephone: (617) 432-1612
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10
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Ghosh S, Pramanik S. Structural diversity, functional aspects and future therapeutic applications of human gut microbiome. Arch Microbiol 2021; 203:5281-5308. [PMID: 34405262 PMCID: PMC8370661 DOI: 10.1007/s00203-021-02516-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 07/29/2021] [Accepted: 08/06/2021] [Indexed: 02/06/2023]
Abstract
The research on human gut microbiome, regarded as the black box of the human body, is still at the stage of infancy as the functional properties of the complex gut microbiome have not yet been understood. Ongoing metagenomic studies have deciphered that the predominant microbial communities belong to eubacterial phyla Firmicutes, Bacteroidetes, Proteobacteria, Fusobacteria, Cyanobacteria, Verrucomicrobia and archaebacterial phylum Euryarchaeota. The indigenous commensal microbial flora prevents opportunistic pathogenic infection and play undeniable roles in digestion, metabolite and signaling molecule production and controlling host's cellular health, immunity and neuropsychiatric behavior. Besides maintaining intestinal health via short-chain fatty acid (SCFA) production, gut microbes also aid in neuro-immuno-endocrine modulatory molecule production, immune cell differentiation and glucose and lipid metabolism. Interdependence of diet and intestinal microbial diversity suggests the effectiveness of pre- and pro-biotics in maintenance of gut and systemic health. Several companies worldwide have started potentially exploiting the microbial contribution to human health and have translated their use in disease management and therapeutic applications. The present review discusses the vast diversity of microorganisms playing intricate roles in human metabolism. The contribution of the intestinal microbiota to regulate systemic activities including gut-brain-immunity crosstalk has been focused. To the best of our knowledge, this review is the first of its kind to collate and discuss the companies worldwide translating the multi-therapeutic potential of human intestinal microbiota, based on the multi-omics studies, i.e. metagenomics and metabolomics, as ready solutions for several metabolic and systemic disorders.
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Affiliation(s)
- Soma Ghosh
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute, i-8 Sector-C, East Kolkata Township, Kolkata, 700107, India.
| | - Sreemanta Pramanik
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute, i-8 Sector-C, East Kolkata Township, Kolkata, 700107, India
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11
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Verma K, Jain S, Paliwal S, Paliwal S, Sharma S. A clinical perspective of soluble epoxide hydrolase inhibitors in metabolic and related cardiovascular diseases. Curr Mol Pharmacol 2021; 15:763-778. [PMID: 34544352 DOI: 10.2174/1874467214666210920104352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 08/03/2021] [Accepted: 08/16/2021] [Indexed: 11/22/2022]
Abstract
Epoxide hydrolase (EH) is a crucial enzyme responsible for catabolism, detoxification, and regulation of signaling molecules in various organisms including human beings. In mammals, EHs are classified according to their DNA sequence, sub-cellular location, and activity into eight major classes: soluble EH (sEH), microsomal EH (mEH), leukotriene A4 hydrolase (LTA4H), cholesterol EH (ChEH), hepoxilin EH, paternally expressed gene 1 (peg1/MEST), EH3 and EH4. The sEH, an α/β-hydrolase fold family enzyme is an emerging pharmacological target in multiple diseases namely, cardiovascular disease, neurodegenerative disease, chronic pain, fibrosis, diabetes, pulmonary diseases, and immunological disease. It exhibits prominent physiological effect that includes anti-inflammatory, anti-migratory and vasodilatory effects. Its efficacy has been documented in several kinds of clinical trials and observational studies. This review specifically highlights the development of soluble epoxide hydrolase inhibitors (sEHIs) in the clinical setting for the management of metabolic syndrome and related disorders such as cardiovascular effects, endothelial dysfunction, arterial disease, hypertension, diabetes, obesity, heart failure, and dyslipidemia. In addition, limitations and future aspects of sEHIs have also been highlighted which will help the investigators to bring the sEHI to the clinics.
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Affiliation(s)
- Kanika Verma
- Department of Pharmacy, Banasthali Vidyapith. Banasthali-304022, Rajasthan. India
| | - Smita Jain
- Department of Pharmacy, Banasthali Vidyapith. Banasthali-304022, Rajasthan. India
| | - Swati Paliwal
- Department of Bioscience and Biotechnology, Banasthali Vidyapith. Banasthali-304022, Rajasthan. India
| | - Sarvesh Paliwal
- Department of Pharmacy, Banasthali Vidyapith. Banasthali-304022, Rajasthan. India
| | - Swapnil Sharma
- Department of Pharmacy, Banasthali Vidyapith. Banasthali-304022, Rajasthan. India
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12
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Gautheron J, Morisseau C, Chung WK, Zammouri J, Auclair M, Baujat G, Capel E, Moulin C, Wang Y, Yang J, Hammock BD, Cerame B, Phan F, Fève B, Vigouroux C, Andreelli F, Jeru I. EPHX1 mutations cause a lipoatrophic diabetes syndrome due to impaired epoxide hydrolysis and increased cellular senescence. eLife 2021; 10:68445. [PMID: 34342583 PMCID: PMC8331186 DOI: 10.7554/elife.68445] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 07/23/2021] [Indexed: 12/11/2022] Open
Abstract
Epoxide hydrolases (EHs) regulate cellular homeostasis through hydrolysis of epoxides to less-reactive diols. The first discovered EH was EPHX1, also known as mEH. EH functions remain partly unknown, and no pathogenic variants have been reported in humans. We identified two de novo variants located in EPHX1 catalytic site in patients with a lipoatrophic diabetes characterized by loss of adipose tissue, insulin resistance, and multiple organ dysfunction. Functional analyses revealed that these variants led to the protein aggregation within the endoplasmic reticulum and to a loss of its hydrolysis activity. CRISPR-Cas9-mediated EPHX1 knockout (KO) abolished adipocyte differentiation and decreased insulin response. This KO also promoted oxidative stress and cellular senescence, an observation confirmed in patient-derived fibroblasts. Metreleptin therapy had a beneficial effect in one patient. This translational study highlights the importance of epoxide regulation for adipocyte function and provides new insights into the physiological roles of EHs in humans.
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Affiliation(s)
- Jeremie Gautheron
- Sorbonne Université-Inserm UMRS_938, Centre de Recherche Saint-Antoine (CRSA), Paris, France.,Institute of Cardiometabolism and Nutrition (ICAN), CHU Pitié-Salpêtrière - Saint-Antoine, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Christophe Morisseau
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, Davis, United States
| | - Wendy K Chung
- Department of Pediatrics, Columbia University Irving Medical Center, New York, United States.,Deparment of Medicine, Columbia University Irving Medical Center, New York, United States
| | - Jamila Zammouri
- Sorbonne Université-Inserm UMRS_938, Centre de Recherche Saint-Antoine (CRSA), Paris, France.,Institute of Cardiometabolism and Nutrition (ICAN), CHU Pitié-Salpêtrière - Saint-Antoine, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Martine Auclair
- Sorbonne Université-Inserm UMRS_938, Centre de Recherche Saint-Antoine (CRSA), Paris, France.,Institute of Cardiometabolism and Nutrition (ICAN), CHU Pitié-Salpêtrière - Saint-Antoine, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Genevieve Baujat
- Service de Génétique Clinique, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Emilie Capel
- Sorbonne Université-Inserm UMRS_938, Centre de Recherche Saint-Antoine (CRSA), Paris, France.,Institute of Cardiometabolism and Nutrition (ICAN), CHU Pitié-Salpêtrière - Saint-Antoine, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Celia Moulin
- Sorbonne Université-Inserm UMRS_938, Centre de Recherche Saint-Antoine (CRSA), Paris, France.,Institute of Cardiometabolism and Nutrition (ICAN), CHU Pitié-Salpêtrière - Saint-Antoine, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - Yuxin Wang
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, Davis, United States
| | - Jun Yang
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, Davis, United States
| | - Bruce D Hammock
- Department of Entomology and Nematology, and UC Davis Comprehensive Cancer Center, University of California, Davis, Davis, United States
| | - Barbara Cerame
- Goryeb Children's Hospital, Atlantic Health Systems, Morristown Memorial Hospital, Morristown, United States
| | - Franck Phan
- Institute of Cardiometabolism and Nutrition (ICAN), CHU Pitié-Salpêtrière - Saint-Antoine, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.,Service de Diabétologie-Métabolisme, Hôpital Pitié-Salpêtrière, AP-HP, Paris, France.,Sorbonne Université-Inserm UMRS_1269, Paris, France
| | - Bruno Fève
- Sorbonne Université-Inserm UMRS_938, Centre de Recherche Saint-Antoine (CRSA), Paris, France.,Institute of Cardiometabolism and Nutrition (ICAN), CHU Pitié-Salpêtrière - Saint-Antoine, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.,Centre National de Référence des Pathologies Rares de l'Insulino-Sécrétion et de l'Insulino-Sensibilité (PRISIS), Service de Diabétologie et Endocrinologie de la Reproduction, Hôpital Saint-Antoine, AP-HP, Paris, France
| | - Corinne Vigouroux
- Sorbonne Université-Inserm UMRS_938, Centre de Recherche Saint-Antoine (CRSA), Paris, France.,Institute of Cardiometabolism and Nutrition (ICAN), CHU Pitié-Salpêtrière - Saint-Antoine, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.,Centre National de Référence des Pathologies Rares de l'Insulino-Sécrétion et de l'Insulino-Sensibilité (PRISIS), Service de Diabétologie et Endocrinologie de la Reproduction, Hôpital Saint-Antoine, AP-HP, Paris, France.,Laboratoire commun de Biologie et Génétique Moléculaires, Hôpital Saint-Antoine, AP-HP, Paris, France
| | - Fabrizio Andreelli
- Institute of Cardiometabolism and Nutrition (ICAN), CHU Pitié-Salpêtrière - Saint-Antoine, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.,Service de Diabétologie-Métabolisme, Hôpital Pitié-Salpêtrière, AP-HP, Paris, France.,Sorbonne Université-Inserm UMRS_1269, Paris, France
| | - Isabelle Jeru
- Sorbonne Université-Inserm UMRS_938, Centre de Recherche Saint-Antoine (CRSA), Paris, France.,Institute of Cardiometabolism and Nutrition (ICAN), CHU Pitié-Salpêtrière - Saint-Antoine, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.,Laboratoire commun de Biologie et Génétique Moléculaires, Hôpital Saint-Antoine, AP-HP, Paris, France
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13
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Fang Y, Johnson H, Anderl JL, Muchamuel T, McMinn D, Morisseau C, Hammock BD, Kirk C, Wang J. Role of epoxide hydrolases and cytochrome P450s on metabolism of KZR-616, a first-in-class selective inhibitor of the immunoproteasome. Drug Metab Dispos 2021; 49:810-821. [PMID: 34234005 DOI: 10.1124/dmd.120.000307] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 06/24/2021] [Indexed: 11/22/2022] Open
Abstract
KZR-616 is an irreversible tripeptide epoxyketone-based selective inhibitor of the human immunoproteasome. Inhibition of the immunoproteasome results in anti-inflammatory activity in vitro and, based on promising therapeutic activity in animal models of rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE), KZR-616 is being developed for potential treatment of multiple autoimmune and inflammatory diseases. The presence of a ketoepoxide pharmacophore presents unique challenges in the study of drug metabolism during lead optimization and clinical candidate profiling. This study presents a thorough and systematic in vitro and cell-based enzymatic metabolism and kinetic investigation to identify the major enzymes involved in the metabolism and elimination of KZR-616. Upon exposure to liver microsomes in the absence of NADPH, KZR-616 and its analogs were converted to their inactive diol derivatives with varying degrees of stability. Diol formation was also shown to be the major metabolite in pharmacokinetic studies in monkeys and correlated with in vitro stability results for individual compounds. Further study in intact hepatocytes and a hepatocellular carcinoma cell line revealed that KZR-616 metabolism was sensitive to an inhibitor of microsomal epoxide hydrolase (mEH) but not inhibitors of cytochrome P450 (CYP) or soluble epoxide hydrolase (sEH). Primary human hepatocytes were determined to be the most robust source of mEH activity for study in vitro These findings also suggest that the exposure of KZR-616 in vivo is unlikely to be affected by co-administration of inhibitors or inducers of CYP and sEH. Significance Statement This work presents a thorough and systematic investigation of metabolism and kinetic of KZR-616 and other peptide epoxyketones in in vitro and cell-based enzymatic systems. Gained information could be useful in assessing novel covalent proteasome inhibitors during lead compound optimization. The study also demonstrates a robust source of in vitro metabolism identification that correlated very well with in vivo PK metabolism for peptide epoxyketones.
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Affiliation(s)
| | | | | | | | | | | | - Bruce D Hammock
- Department of Entomology, University of California - Davis, United States
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14
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Morisseau C, Kodani SD, Kamita SG, Yang J, Lee KSS, Hammock BD. Relative Importance of Soluble and Microsomal Epoxide Hydrolases for the Hydrolysis of Epoxy-Fatty Acids in Human Tissues. Int J Mol Sci 2021; 22:ijms22094993. [PMID: 34066758 PMCID: PMC8125816 DOI: 10.3390/ijms22094993] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/03/2021] [Accepted: 05/04/2021] [Indexed: 01/03/2023] Open
Abstract
Epoxy-fatty acids (EpFAs) are endogenous lipid mediators that have a large breadth of biological activities, including the regulation of blood pressure, inflammation, angiogenesis, and pain perception. For the past 20 years, soluble epoxide hydrolase (sEH) has been recognized as the primary enzyme for degrading EpFAs in vivo. The sEH converts EpFAs to the generally less biologically active 1,2-diols, which are quickly eliminated from the body. Thus, inhibitors of sEH are being developed as potential drug therapeutics for various diseases including neuropathic pain. Recent findings suggest that other epoxide hydrolases (EHs) such as microsomal epoxide hydrolase (mEH) and epoxide hydrolase-3 (EH3) can contribute significantly to the in vivo metabolism of EpFAs. In this study, we used two complementary approaches to probe the relative importance of sEH, mEH, and EH3 in 15 human tissue extracts: hydrolysis of 14,15-EET and 13,14-EDP using selective inhibitors and protein quantification. The sEH hydrolyzed the majority of EpFAs in all of the tissues investigated, mEH hydrolyzed a significant portion of EpFAs in several tissues, whereas no significant role in EpFAs metabolism was observed for EH3. Our findings indicate that residual mEH activity could limit the therapeutic efficacy of sEH inhibition in certain organs.
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15
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Godoy R, Machuca J, Venthur H, Quiroz A, Mutis A. An Overview of Antennal Esterases in Lepidoptera. Front Physiol 2021; 12:643281. [PMID: 33868009 PMCID: PMC8044547 DOI: 10.3389/fphys.2021.643281] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 03/15/2021] [Indexed: 12/02/2022] Open
Abstract
Lepidoptera are used as a model for the study of insect olfactory proteins. Among them, odorant degrading enzymes (ODEs), that degrade odorant molecules to maintain the sensitivity of antennae, have received less attention. In particular, antennal esterases (AEs; responsible for ester degradation) are crucial for intraspecific communication in Lepidoptera. Currently, transcriptomic and genomic studies have provided AEs in several species. However, efforts in gene annotation, classification, and functional assignment are still lacking. Therefore, we propose to combine evidence at evolutionary, structural, and functional level to update ODEs as well as key information into an easier classification, particularly of AEs. Finally, the kinetic parameters for putative inhibition of ODEs are discussed in terms of its role in future integrated pest management (IPM) strategies.
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Affiliation(s)
- Ricardo Godoy
- Programa de Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Temuco, Chile
- Centro de Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Universidad de La Frontera, Temuco, Chile
| | - Juan Machuca
- Programa de Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Temuco, Chile
- Centro de Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Universidad de La Frontera, Temuco, Chile
| | - Herbert Venthur
- Centro de Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Universidad de La Frontera, Temuco, Chile
| | - Andrés Quiroz
- Centro de Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Universidad de La Frontera, Temuco, Chile
| | - Ana Mutis
- Centro de Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Universidad de La Frontera, Temuco, Chile
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16
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Lillich FF, Imig JD, Proschak E. Multi-Target Approaches in Metabolic Syndrome. Front Pharmacol 2021; 11:554961. [PMID: 33776749 PMCID: PMC7994619 DOI: 10.3389/fphar.2020.554961] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 11/03/2020] [Indexed: 12/13/2022] Open
Abstract
Metabolic syndrome (MetS) is a highly prevalent disease cluster worldwide. It requires polypharmacological treatment of the single conditions including type II diabetes, hypertension, and dyslipidemia, as well as the associated comorbidities. The complex treatment regimens with various drugs lead to drug-drug interactions and inadequate patient adherence, resulting in poor management of the disease. Multi-target approaches aim at reducing the polypharmacology and improving the efficacy. This review summarizes the medicinal chemistry efforts to develop multi-target ligands for MetS. Different combinations of pharmacological targets in context of in vivo efficacy and future perspective for multi-target drugs in MetS are discussed.
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Affiliation(s)
- Felix F. Lillich
- Institute of Pharmaceutical Chemistry, Goethe-University of Frankfurt, Frankfurt, Germany
| | - John D. Imig
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Ewgenij Proschak
- Institute of Pharmaceutical Chemistry, Goethe-University of Frankfurt, Frankfurt, Germany
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17
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Valledor L, Guerrero S, García-Campa L, Meijón M. Proteometabolomic characterization of apical bud maturation in Pinus pinaster. TREE PHYSIOLOGY 2021; 41:508-521. [PMID: 32870277 DOI: 10.1093/treephys/tpaa111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/30/2020] [Accepted: 08/22/2020] [Indexed: 05/03/2023]
Abstract
Bud maturation is a physiological process that implies a set of morphophysiological changes that lead to the transition of growth patterns from young to mature. This transition defines tree growth and architecture, and in consequence traits such as biomass production and wood quality. In Pinus pinaster Aiton, a conifer of great timber value, bud maturation is closely related to polycyclism (multiple growth periods per year). This process causes a lack of apical dominance, and consequently increased branching that reduces its timber quality and value. However, despite its importance, little is known about bud maturation. In this work, proteomics and metabolomics were employed to study apical and basal sections of young and mature buds in P. pinaster. Proteins and metabolites in samples were described and quantified using (n)UPLC-LTQ-Orbitrap. The datasets were analyzed employing an integrative statistical approach, which allowed the determination of the interactions between proteins and metabolites and the different bud sections and ages. Specific dynamics of proteins and metabolites such as histones H3 and H4, ribosomal proteins L15 and L12, chaperonin TCP1, 14-3-3 protein gamma, gibberellins A1, A3 and A8, strigolactones and abscisic acid, involved in epigenetic regulation, proteome remodeling, hormonal signaling and abiotic stress pathways showed their potential role during bud maturation. Candidates and pathways were validated employing interaction databases and targeted transcriptomics. These results increase our understanding of the molecular processes behind bud maturation, a key step towards improving timber production and natural pine forests management in a future scenario of climate change. However, further studies are necessary using different P. pinaster populations that show contrasting wood quality and stress tolerance in order to generalize the results.
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Affiliation(s)
- Luis Valledor
- Plant Physiology, Department of Organisms and Systems Biology, C/Catedrático Rodrigo Uría, University of Oviedo, Oviedo 33071, Asturias, Spain
| | - Sara Guerrero
- Plant Physiology, Department of Organisms and Systems Biology, C/Catedrático Rodrigo Uría, University of Oviedo, Oviedo 33071, Asturias, Spain
| | - Lara García-Campa
- Plant Physiology, Department of Organisms and Systems Biology, C/Catedrático Rodrigo Uría, University of Oviedo, Oviedo 33071, Asturias, Spain
| | - Mónica Meijón
- Plant Physiology, Department of Organisms and Systems Biology, C/Catedrático Rodrigo Uría, University of Oviedo, Oviedo 33071, Asturias, Spain
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18
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The Multifaceted Role of Epoxide Hydrolases in Human Health and Disease. Int J Mol Sci 2020; 22:ijms22010013. [PMID: 33374956 PMCID: PMC7792612 DOI: 10.3390/ijms22010013] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 12/12/2022] Open
Abstract
Epoxide hydrolases (EHs) are key enzymes involved in the detoxification of xenobiotics and biotransformation of endogenous epoxides. They catalyze the hydrolysis of highly reactive epoxides to less reactive diols. EHs thereby orchestrate crucial signaling pathways for cell homeostasis. The EH family comprises 5 proteins and 2 candidate members, for which the corresponding genes are not yet identified. Although the first EHs were identified more than 30 years ago, the full spectrum of their substrates and associated biological functions remain partly unknown. The two best-known EHs are EPHX1 and EPHX2. Their wide expression pattern and multiple functions led to the development of specific inhibitors. This review summarizes the most important points regarding the current knowledge on this protein family and highlights the particularities of each EH. These different enzymes can be distinguished by their expression pattern, spectrum of associated substrates, sub-cellular localization, and enzymatic characteristics. We also reevaluated the pathogenicity of previously reported variants in genes that encode EHs and are involved in multiple disorders, in light of large datasets that were made available due to the broad development of next generation sequencing. Although association studies underline the pleiotropic and crucial role of EHs, no data on high-effect variants are confirmed to date.
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19
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Song P, Shen X. Proteomic analysis of liver in diet-induced Hyperlipidemic mice under Fructus Rosa roxburghii action. J Proteomics 2020; 230:103982. [PMID: 32927110 DOI: 10.1016/j.jprot.2020.103982] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/28/2020] [Accepted: 09/08/2020] [Indexed: 12/23/2022]
Abstract
Fructus Rosae Roxburghii (FRR) has been considered as edible and medicinal fruit possessing antiatherosclerotic effect, but the mechanism is still unclear. HLP is material basis for AS formation. Under FRR action, TC, TG, LDL, HDL and ASI in serum were regulated to control level. Differentially expressed proteins in liver were analyzed by using TMT labeling and LC-MS/MS for better understanding the effect and molecular mechanism of FRR on diet-induced hyperlipidemic mice. In total, 4460 proteins were quantified, of which 469 proteins showed dramatic changes between each group. According to molecular functions, 25 differentially co-expressed proteins were divided into five categories: substance metabolism, energy transformation and signal transduction, transcription and translation, immune defense. 15 key proteins involved lipids metabolism, which were identified as Cyp7a1, Cyp3a11, Tm7sf2, COAT2, CSAD, RBP3, Lpin1, Dhrs4, Aldh1b1, GK, Acot 4, TSC22D1, PGFS, EHs, GSTM1. This suggested that FRR could maintain metabolic homeostasis by regulating the metabolism of fatty acids, biosynthesis of BAs and steroids, and production of LPOs. 20 oxidative lipids further confirmed their importance regulating lipids metabolism. It's first time potential antiatherosclerotic mechanism of FRR regulating blood lipids was explored from protein level, which is of great significance to explore new drug targets for AS. SIGNIFICANCE: Under the action of FRR juice, the blood lipids in mice were regulated to control level. By TMT proteomic analysis, the effect and molecular mechanism of FRR on diet-induced hyperlipidemic mice were further explored. 25 differentially co-expressed proteins obtained in three diet groups might cooperatively regulate the lipids metabolism and hepatic function of mice, thus maintaining the metabolism homeostasis. By lipidomics analysis, 20 oxidative lipids further confirmed the importance of ω-3 and ω-6 PUFAs in regulating the lipids metabolism. These findings provide an improved understanding for the regulation of FRR on the blood lipids and explores potential metabolic targets for AS prevention.
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Affiliation(s)
- Pingping Song
- The State Key Laboratory of Functions and Applications of Medicinal Plants (The high Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province and The high Educational Key laboratory of Guizhou Province for Natural Medicinal Pharmacology and Druggability), Guizhou Medical University, Guian New District, Guizhou 550000, China; Key Laboratory of Optimal Utilization of Natural Medicine Resources (The Union Key Laboratory of Guiyang City-Guizhou Medical University), School of Pharmaceutical Sciences, Guizhou Medical University, Guian New District, Guizhou 550000, China
| | - Xiangchun Shen
- The State Key Laboratory of Functions and Applications of Medicinal Plants (The high Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province and The high Educational Key laboratory of Guizhou Province for Natural Medicinal Pharmacology and Druggability), Guizhou Medical University, Guian New District, Guizhou 550000, China; Key Laboratory of Optimal Utilization of Natural Medicine Resources (The Union Key Laboratory of Guiyang City-Guizhou Medical University), School of Pharmaceutical Sciences, Guizhou Medical University, Guian New District, Guizhou 550000, China.
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20
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Sisignano M, Steinhilber D, Parnham MJ, Geisslinger G. Exploring CYP2J2: lipid mediators, inhibitors and therapeutic implications. Drug Discov Today 2020; 25:1744-1753. [DOI: 10.1016/j.drudis.2020.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 06/16/2020] [Accepted: 07/02/2020] [Indexed: 12/30/2022]
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de Medina P, Diallo K, Huc-Claustre E, Attia M, Soulès R, Silvente-Poirot S, Poirot M. The 5,6-epoxycholesterol metabolic pathway in breast cancer: Emergence of new pharmacological targets. Br J Pharmacol 2020; 178:3248-3260. [PMID: 32696532 DOI: 10.1111/bph.15205] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/06/2020] [Accepted: 07/10/2020] [Indexed: 12/12/2022] Open
Abstract
Metabolic pathways have emerged as cornerstones in carcinogenic deregulation providing new therapeutic strategies for cancer management. Recently, a new branch of cholesterol metabolism has been discovered involving the biochemical transformation of 5,6-epoxycholesterols (5,6-ECs). The 5,6-ECs are metabolized in breast cancers to the tumour promoter oncosterone whereas, in normal breast tissue, they are metabolized to the tumour suppressor metabolite, dendrogenin A (DDA). Blocking the mitogenic and invasive potential of oncosterone will present new opportunities for breast cancer treatment. The reactivation of DDA biosynthesis, or its use as a drug, represents promising therapeutic approaches such as DDA-deficiency complementation, activation of breast cancer cell re-differentiation and breast cancer chemoprevention. This review presents current knowledge of the 5,6-EC metabolic pathway in breast cancer, focusing on the 5,6-EC metabolic enzymes ChEH and HSD11B2 and on 5,6-EC metabolite targets, the oxysterol receptor (LXRβ) and the glucocorticoid receptor. LINKED ARTICLES: This article is part of a themed issue on Oxysterols, Lifelong Health and Therapeutics. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.16/issuetoc.
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Affiliation(s)
- Philippe de Medina
- UMR-1037, Cancer Research Center of Toulouse (CRCT), Team "Cholesterol Metabolism and Therapeutic Innovations"; Equipe labellisée par la Ligue Nationale Contre le Cancer, The French Network for Nutrition and Cancer Research (NACRe Network), INSERM-Université de Toulouse, Toulouse, France
| | - Khadijetou Diallo
- UMR-1037, Cancer Research Center of Toulouse (CRCT), Team "Cholesterol Metabolism and Therapeutic Innovations"; Equipe labellisée par la Ligue Nationale Contre le Cancer, The French Network for Nutrition and Cancer Research (NACRe Network), INSERM-Université de Toulouse, Toulouse, France
| | - Emilie Huc-Claustre
- UMR-1037, Cancer Research Center of Toulouse (CRCT), Team "Cholesterol Metabolism and Therapeutic Innovations"; Equipe labellisée par la Ligue Nationale Contre le Cancer, The French Network for Nutrition and Cancer Research (NACRe Network), INSERM-Université de Toulouse, Toulouse, France
| | - Mehdi Attia
- UMR-1037, Cancer Research Center of Toulouse (CRCT), Team "Cholesterol Metabolism and Therapeutic Innovations"; Equipe labellisée par la Ligue Nationale Contre le Cancer, The French Network for Nutrition and Cancer Research (NACRe Network), INSERM-Université de Toulouse, Toulouse, France
| | - Régis Soulès
- UMR-1037, Cancer Research Center of Toulouse (CRCT), Team "Cholesterol Metabolism and Therapeutic Innovations"; Equipe labellisée par la Ligue Nationale Contre le Cancer, The French Network for Nutrition and Cancer Research (NACRe Network), INSERM-Université de Toulouse, Toulouse, France
| | - Sandrine Silvente-Poirot
- UMR-1037, Cancer Research Center of Toulouse (CRCT), Team "Cholesterol Metabolism and Therapeutic Innovations"; Equipe labellisée par la Ligue Nationale Contre le Cancer, The French Network for Nutrition and Cancer Research (NACRe Network), INSERM-Université de Toulouse, Toulouse, France
| | - Marc Poirot
- UMR-1037, Cancer Research Center of Toulouse (CRCT), Team "Cholesterol Metabolism and Therapeutic Innovations"; Equipe labellisée par la Ligue Nationale Contre le Cancer, The French Network for Nutrition and Cancer Research (NACRe Network), INSERM-Université de Toulouse, Toulouse, France
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22
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Mahlooji I, Shokri M, Manoochehri R, Mahboubi-Rabbani M, Rezaee E, Tabatabai SA. Discovery of phthalimide derivatives as novel inhibitors of a soluble epoxide hydrolase. Arch Pharm (Weinheim) 2020; 353:e2000052. [PMID: 32484272 DOI: 10.1002/ardp.202000052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 05/09/2020] [Accepted: 05/12/2020] [Indexed: 11/08/2022]
Abstract
Soluble epoxide hydrolase (sEH) inhibitors are effective in reducing blood pressure, inflammation, and pain in a number of mammalian disease models. As most classical urea-based sEH inhibitors suffer from poor solubility and pharmacokinetic properties, the development of novel sEH inhibitors with an improved pharmacokinetic specification has received a great deal of attention. In this study, a series of amide-based sEH inhibitors bearing a phthalimide ring as the novel secondary pharmacophore (P2 ) was designed, synthesized, and evaluated. Docking results illustrated that the amide group as the primary pharmacophore (P1 ) was placed at a suitable distance from the three key amino acids (Tyr383, Tyr466, and Asp335) for an effective hydrogen bonding. In agreement with these findings, most of the newly synthesized compounds demonstrated moderate to high sEH inhibitory activities, relative to 12-(3-adamantan-1-yl-ureido)dodecanoic acid as the reference standard. Compound 12e with a 4-methoxybenzoyl substituent exhibited the highest sEH inhibitory activity, with an IC50 value of 1.06 nM. Moreover, the ADME properties of the compounds were evaluated in silico, and the results revealed appropriate predictions.
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Affiliation(s)
- Iman Mahlooji
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Shokri
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Rana Manoochehri
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Mahboubi-Rabbani
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Elham Rezaee
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sayyed Abbas Tabatabai
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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23
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Epoxide containing molecules: A good or a bad drug design approach. Eur J Med Chem 2020; 201:112327. [PMID: 32526552 DOI: 10.1016/j.ejmech.2020.112327] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/06/2020] [Accepted: 04/08/2020] [Indexed: 12/13/2022]
Abstract
Functional group modification is one of the main strategies used in drug discovery and development. Despite the controversy of being identified for many years as a biologically hazardous functional group, the introduction of an epoxide function in a structural backbone is still one of the possible modifications being implemented in drug design. In this manner, it is our intention to prove with this work that epoxides can have significant interest in medicinal chemistry, not only as anticancer agents, but also as important drugs for other pathologies. Thus, this revision paper aims to highlight the biological activity and the proposed mechanisms of action of several epoxide-containing molecules either in preclinical studies or in clinical development or even in clinical use. An overview of the chemistry of epoxides is also reported. Some of the conclusions are that effectively most of the epoxide-containing molecules referred in this work were being studied or are in the market as anticancer drugs. However, some of them in preclinical studies, were also associated with other different activities such as anti-malarial, anti-arthritic, insecticidal, antithrombotic, and selective inhibitory activity of FXIII-A (a transglutaminase). As for the epoxide-containing molecules in clinical trials, some of them are being tested for obesity and schizophrenia. Finally, drugs containing epoxide groups already in the market are mostly used for the treatment of different types of cancer, such as breast cancer and multiple myeloma. Other diseases for which the referred drugs are being used include heart failure, infections and gastrointestinal disturbs. In summary, epoxides can be a suitable option in drug design, particularly in the design of anticancer agents, and deserve to be better explored. However, and despite the promising results, it is imperative to explore the mechanisms of action of these compounds in order to have a better picture of their efficiency and safety.
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24
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Dang NL, Matlock MK, Hughes TB, Swamidass SJ. The Metabolic Rainbow: Deep Learning Phase I Metabolism in Five Colors. J Chem Inf Model 2020; 60:1146-1164. [DOI: 10.1021/acs.jcim.9b00836] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Na Le Dang
- Department of Pathology and Immunology, Washington University School of Medicine, Campus Box 8118, 660 S. Euclid Ave., St. Louis, Missouri 63110, United States
| | - Matthew K. Matlock
- Department of Pathology and Immunology, Washington University School of Medicine, Campus Box 8118, 660 S. Euclid Ave., St. Louis, Missouri 63110, United States
| | - Tyler B. Hughes
- Department of Pathology and Immunology, Washington University School of Medicine, Campus Box 8118, 660 S. Euclid Ave., St. Louis, Missouri 63110, United States
| | - S. Joshua Swamidass
- Department of Pathology and Immunology, Washington University School of Medicine, Campus Box 8118, 660 S. Euclid Ave., St. Louis, Missouri 63110, United States
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McReynolds C, Morisseau C, Wagner K, Hammock B. Epoxy Fatty Acids Are Promising Targets for Treatment of Pain, Cardiovascular Disease and Other Indications Characterized by Mitochondrial Dysfunction, Endoplasmic Stress and Inflammation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1274:71-99. [PMID: 32894508 PMCID: PMC7737916 DOI: 10.1007/978-3-030-50621-6_5] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Bioactive lipid mediators resulting from the metabolism of polyunsaturated fatty acids (PUFA) are controlled by many pathways that regulate the levels of these mediators and maintain homeostasis to prevent disease. PUFA metabolism is driven primarily through three pathways. Two pathways, the cyclooxygenase (COX) and lipoxygenase (LO) enzymatic pathways, form metabolites that are mostly inflammatory, while the third route of metabolism results from the oxidation by the cytochrome P450 enzymes to form hydroxylated PUFA and epoxide metabolites. These epoxygenated fatty acids (EpFA) demonstrate largely anti-inflammatory and beneficial properties, in contrast to the other metabolites formed from the degradation of PUFA. Dysregulation of these systems often leads to chronic disease. Pharmaceutical targets of disease focus on preventing the formation of inflammatory metabolites from the COX and LO pathways, while maintaining the EpFA and increasing their concentration in the body is seen as beneficial to treating and preventing disease. The soluble epoxide hydrolase (sEH) is the major route of metabolism of EpFA. Inhibiting its activity increases concentrations of beneficial EpFA, and often disease states correlate to mutations in the sEH enzyme that increase its activity and decrease the concentrations of EpFA in the body. Recent approaches to increasing EpFA include synthetic mimics that replicate biological activity of EpFA while preventing their metabolism, while other approaches focus on developing small molecule inhibitors to the sEH. Increasing EpFA concentrations in the body has demonstrated multiple beneficial effects in treating many diseases, including inflammatory and painful conditions, cardiovascular disease, neurological and disease of the central nervous system. Demonstration of efficacy in so many disease states can be explained by the fundamental mechanism that EpFA have of maintaining healthy microvasculature and preventing mitochondrial and endoplasmic reticulum stress. While there are no FDA approved methods that target the sEH or other enzymes responsible for metabolizing EpFA, current clinical efforts to test for efficacy by increasing EpFA that include inhibiting the sEH or administration of EpFA mimics that block metabolism are in progress.
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Affiliation(s)
- Cindy McReynolds
- Department of Entomology and Nematology, and U.C. Davis Comprehensive Cancer Center, University of California Davis, Davis, CA, USA
- EicOsis, Davis, CA, USA
| | - Christophe Morisseau
- Department of Entomology and Nematology, and U.C. Davis Comprehensive Cancer Center, University of California Davis, Davis, CA, USA
| | - Karen Wagner
- Department of Entomology and Nematology, and U.C. Davis Comprehensive Cancer Center, University of California Davis, Davis, CA, USA
- EicOsis, Davis, CA, USA
| | - Bruce Hammock
- Department of Entomology and Nematology, and U.C. Davis Comprehensive Cancer Center, University of California Davis, Davis, CA, USA.
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26
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Hajeyah AA, Griffiths WJ, Wang Y, Finch AJ, O’Donnell VB. The Biosynthesis of Enzymatically Oxidized Lipids. Front Endocrinol (Lausanne) 2020; 11:591819. [PMID: 33329396 PMCID: PMC7711093 DOI: 10.3389/fendo.2020.591819] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/26/2020] [Indexed: 12/14/2022] Open
Abstract
Enzymatically oxidized lipids are a specific group of biomolecules that function as key signaling mediators and hormones, regulating various cellular and physiological processes from metabolism and cell death to inflammation and the immune response. They are broadly categorized as either polyunsaturated fatty acid (PUFA) containing (free acid oxygenated PUFA "oxylipins", endocannabinoids, oxidized phospholipids) or cholesterol derivatives (oxysterols, steroid hormones, and bile acids). Their biosynthesis is accomplished by families of enzymes that include lipoxygenases (LOX), cyclooxygenases (COX), cytochrome P450s (CYP), and aldo-keto reductases (AKR). In contrast, non-enzymatically oxidized lipids are produced by uncontrolled oxidation and are broadly considered to be harmful. Here, we provide an overview of the biochemistry and enzymology of LOXs, COXs, CYPs, and AKRs in humans. Next, we present biosynthetic pathways for oxylipins, oxidized phospholipids, oxysterols, bile acids and steroid hormones. Last, we address gaps in knowledge and suggest directions for future work.
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Affiliation(s)
- Ali A. Hajeyah
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
- *Correspondence: Ali A. Hajeyah,
| | - William J. Griffiths
- Institute of Life Science, Swansea University Medical School, Swansea, United Kingdom
| | - Yuqin Wang
- Institute of Life Science, Swansea University Medical School, Swansea, United Kingdom
| | - Andrew J. Finch
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Valerie B. O’Donnell
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
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27
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Elevated faecal 12,13-diHOME concentration in neonates at high risk for asthma is produced by gut bacteria and impedes immune tolerance. Nat Microbiol 2019; 4:1851-1861. [PMID: 31332384 DOI: 10.1038/s41564-019-0498-2] [Citation(s) in RCA: 142] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 05/29/2019] [Indexed: 01/20/2023]
Abstract
Neonates at risk of childhood atopy and asthma exhibit perturbation of the gut microbiome, metabolic dysfunction and increased concentrations of 12,13-diHOME in their faeces. However, the mechanism, source and contribution of this lipid to allergic inflammation remain unknown. Here, we show that intra-abdominal treatment of mice with 12,13-diHOME increased pulmonary inflammation and decreased the number of regulatory T (Treg) cells in the lungs. Treatment of human dendritic cells with 12,13-diHOME altered expression of PPARγ-regulated genes and reduced anti-inflammatory cytokine secretion and the number of Treg cells in vitro. Shotgun metagenomic sequencing of neonatal faeces indicated that bacterial epoxide hydrolase (EH) genes are more abundant in the gut microbiome of neonates who develop atopy and/or asthma during childhood. Three of these bacterial EH genes (3EH) specifically produce 12,13-diHOME, and treatment of mice with bacterial strains expressing 3EH caused a decrease in the number of lung Treg cells in an allergen challenge model. In two small birth cohorts, an increase in the copy number of 3EH or the concentration of 12,13-diHOME in the faeces of neonates was found to be associated with an increased probability of developing atopy, eczema or asthma during childhood. Our data indicate that elevated 12,13-diHOME concentrations impede immune tolerance and may be produced by bacterial EHs in the neonatal gut, offering a mechanistic link between perturbation of the gut microbiome during early life and atopy and asthma during childhood.
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28
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Substrate and inhibitor selectivity, and biological activity of an epoxide hydrolase from Trichoderma reesei. Mol Biol Rep 2018; 46:371-379. [PMID: 30426381 DOI: 10.1007/s11033-018-4481-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 11/07/2018] [Indexed: 12/12/2022]
Abstract
Epoxide hydrolases (EHs) are present in all living organisms and catalyze the hydrolysis of epoxides to the corresponding vicinal diols. EH are involved in the metabolism of endogenous and exogenous epoxides, and thus have application in pharmacology and biotechnology. In this work, we describe the substrates and inhibitors selectivity of an epoxide hydrolase recently cloned from the filamentous fungus Trichoderma reesei QM9414 (TrEH). We also studied the TrEH urea-based inhibitors effects in the fungal growth. TrEH showed high activity on radioative and fluorescent surrogate and natural substrates, especially epoxides from docosahexaenoic acid. Using a fluorescent surrogate substrate, potent inhibitors of TrEH were identified. Interestingly, one of the best compounds inhibit up to 60% of T. reesei growth, indicating an endogenous role for TrEH. These data make TrEH very attractive for future studies about fungal metabolism of fatty acids and possible development of novel drugs for human diseases.
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29
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Agarwal S, Verma E, Kumar V, Lall N, Sau S, Iyer AK, Kashaw SK. An integrated computational approach of molecular dynamics simulations, receptor binding studies and pharmacophore mapping analysis in search of potent inhibitors against tuberculosis. J Mol Graph Model 2018; 83:17-32. [PMID: 29753941 DOI: 10.1016/j.jmgm.2018.04.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 04/26/2018] [Accepted: 04/27/2018] [Indexed: 12/15/2022]
Abstract
Tuberculosis is an infectious chronic disease caused by obligate pathogen Mycobacterium tuberculosis that affects millions of people worldwide. Although many first and second line drugs are available for its treatment, but their irrational use has adversely lead to the emerging cases of multiple drug resistant and extensively drug-resistant tuberculosis. Therefore, there is an intense need to develop novel potent analogues for its treatment. This has prompted us to develop potent analogues against TB. The Mycobacterium tuberculosis genome provides us with number of validated targets to combat against TB. Study of Mtb genome disclosed six epoxide hydrolases (A to F) which convert harmful epoxide into diols and act as a potential drug target for rational drug design. Our current strategy is to develop such analogues which inhibits epoxide hydrolase enzyme present in Mtb genome. To achieve this, we adopted an integrated computational approach involving QSAR, pharmacophore mapping, molecular docking and molecular dynamics simulation studies. The approach envisaged vital information about the role of molecular descriptors, essential pharmacophoric features and binding energy for compounds to bind into the active site of epoxide hydrolase. Molecular docking analysis revealed that analogues exhibited significant binding to Mtb epoxide hydrolase. Further, three docked complexes 2s, 37s and 15s with high, moderate and low docking scores respectively were selected for molecular dynamics simulation studies. RMSD analysis revealed that all complexes are stable with average RMSD below 2 Å throughout the 10 ns simulations. The B-factor analysis showed that the active site residues of epoxide hydrolase are flexible enough to interact with inhibitor. Moreover, to confirm the binding of these urea derivatives, MM-GBSA binding energy analysis were performed. The calculations showed that 37s has more binding affinity (ΔGtotal = -52.24 kcal/mol) towards epoxide hydrolase compared to 2s (ΔGtotal = -51.70 kcal/mol) and 15s (ΔGtotal = -49.97 kcal/mol). The structural features inferred in our study may provide the future directions to the scientists towards the discovery of new chemical entity exhibiting anti-TB property.
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Affiliation(s)
- Shivangi Agarwal
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University (A Central University), Sagar, MP, India
| | - Ekta Verma
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University (A Central University), Sagar, MP, India
| | - Vivek Kumar
- Department of Plant and Soil Sciences, University of Pretoria, South Africa
| | - Namrita Lall
- Department of Plant and Soil Sciences, University of Pretoria, South Africa
| | - Samaresh Sau
- Use-inspired Biomaterials & integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Wayne State University, Detroit, MI, USA
| | - Arun K Iyer
- Use-inspired Biomaterials & integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Wayne State University, Detroit, MI, USA; Molecular Imaging Program, Karmanos Cancer Institute, Detroit, MI, USA
| | - Sushil K Kashaw
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University (A Central University), Sagar, MP, India.
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30
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Madacki J, Laval F, Grzegorzewicz A, Lemassu A, Záhorszká M, Arand M, McNeil M, Daffé M, Jackson M, Lanéelle MA, Korduláková J. Impact of the epoxide hydrolase EphD on the metabolism of mycolic acids in mycobacteria. J Biol Chem 2018; 293:5172-5184. [PMID: 29472294 DOI: 10.1074/jbc.ra117.000246] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 02/16/2018] [Indexed: 01/09/2023] Open
Abstract
Mycolic acids are the hallmark of the cell envelope in mycobacteria, which include the important human pathogens Mycobacterium tuberculosis and Mycobacterium leprae Mycolic acids are very long C60-C90 α-alkyl β-hydroxy fatty acids having a variety of functional groups on their hydrocarbon chain that define several mycolate types. Mycobacteria also produce an unusually large number of putative epoxide hydrolases, but the physiological functions of these enzymes are still unclear. Here, we report that the mycobacterial epoxide hydrolase EphD is involved in mycolic acid metabolism. We found that orthologs of EphD from M. tuberculosis and M. smegmatis are functional epoxide hydrolases, cleaving a lipophilic substrate, 9,10-cis-epoxystearic acid, in vitro and forming a vicinal diol. The results of EphD overproduction in M. smegmatis and M. bovis BCG Δhma strains producing epoxymycolic acids indicated that EphD is involved in the metabolism of these forms of mycolates in both fast- and slow-growing mycobacteria. Moreover, using MALDI-TOF-MS and 1H NMR spectroscopy of mycolic acids and lipids isolated from EphD-overproducing M. smegmatis, we identified new oxygenated mycolic acid species that accumulated during epoxymycolate depletion. Disruption of the ephD gene in M. tuberculosis specifically impaired the synthesis of ketomycolates and caused accumulation of their precursor, hydroxymycolate, indicating either direct or indirect involvement of EphD in ketomycolate biosynthesis. Our results clearly indicate that EphD plays a role in metabolism of oxygenated mycolic acids in mycobacteria.
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Affiliation(s)
- Jan Madacki
- From the Department of Biochemistry, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovakia
| | - Françoise Laval
- the Tuberculosis & Infection Biology Department, Institut de Pharmacologie et de Biologie Structurale, CNRS, 31077 Toulouse, France
| | - Anna Grzegorzewicz
- the Mycobacteria Research Laboratories, Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523-1682, and
| | - Anne Lemassu
- the Tuberculosis & Infection Biology Department, Institut de Pharmacologie et de Biologie Structurale, CNRS, 31077 Toulouse, France
| | - Monika Záhorszká
- From the Department of Biochemistry, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovakia
| | - Michael Arand
- the Institute of Pharmacology and Toxicology, University of Zürich, CH-8057 Zürich, Switzerland
| | - Michael McNeil
- the Mycobacteria Research Laboratories, Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523-1682, and
| | - Mamadou Daffé
- the Tuberculosis & Infection Biology Department, Institut de Pharmacologie et de Biologie Structurale, CNRS, 31077 Toulouse, France
| | - Mary Jackson
- the Mycobacteria Research Laboratories, Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523-1682, and
| | - Marie-Antoinette Lanéelle
- the Tuberculosis & Infection Biology Department, Institut de Pharmacologie et de Biologie Structurale, CNRS, 31077 Toulouse, France
| | - Jana Korduláková
- From the Department of Biochemistry, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovakia,
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31
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Reinheimer C, Büttner D, Proschak E, Bode HB, Kempf VAJ, Wichelhaus TA. Anti-tubercular activity of a natural stilbene and its synthetic derivatives. GMS INFECTIOUS DISEASES 2018; 6:Doc01. [PMID: 30671332 PMCID: PMC6301740 DOI: 10.3205/id000036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Objectives: Tuberculosis (TB) and multidrug- and extensively drug-resistant TB in particular are remaining a major global health challenge and efficient new drugs against TB are needed. This study evaluated the anti-tubercular activity of a natural stilbene and its synthetic derivatives against M. tuberculosis. Methods: Isopropylstilbene and its synthetic derivatives were analyzed for their anti-tubercular activity against M. tuberculosis ATCC 27294 as well as multidrug- and extensively drug-resistant M. tuberculosis clinical isolates by using MGIT 960 instrumentation and EpiCenter software equipped with TB eXiST module. Cytotoxic effects of drug candidates were determined by a MTT dye reduction assay using A549 adenocarcinomic human alveolar basal epithelial cells. Results: Growth of M. tuberculosis ATCC 27294 was suppressed by the natural isopropylstilbene HB64 as well as synthetic derivatives DB56 and DB55 at 25 µg/ml. Growth of clinical isolates MDR and XDR M. tuberculosis was suppressed by HB64 at 100 µg/ml as well as by synthetic derivatives DB56 and DB55 at 50 µg/ml and 25 µg/ml, respectively. No anti-tubercular activity was demonstrated for synthetic derivatives DB53, EB251, and RB57 at 100 µg/ml. Toxicity in terms of IC50 values of HB64, DB55 and DB56 were 7.92 µg/ml, 12.15 µg/ml and 16.01 µg/ml, respectively. Conclusions: Synthetical derivatives of stilbene might be effective candidates as anti-tubercular drugs. However, toxicity of these substances as determined by IC50 values might limit therapeutic success in vivo. Further investigations should address lowering the toxicity for parenteral administration by remodeling stilbene derivatives.
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Affiliation(s)
- Claudia Reinheimer
- Institute of Medical Microbiology and Infection Control, Hospital of Goethe-University, Frankfurt, Germany
| | - Dominik Büttner
- Institute of Pharmaceutical Chemistry, Goethe-University, Frankfurt, Germany
| | - Eugen Proschak
- Institute of Pharmaceutical Chemistry, Goethe-University, Frankfurt, Germany
| | - Helge B Bode
- Merck endowed chair for Molecular Biotechnology, Department of Biosciences and Buchmann Institute for Molecular Life Sciences (BMLS), Goethe-University, Frankfurt, Germany
| | - Volkhard A J Kempf
- Institute of Medical Microbiology and Infection Control, Hospital of Goethe-University, Frankfurt, Germany
| | - Thomas A Wichelhaus
- Institute of Medical Microbiology and Infection Control, Hospital of Goethe-University, Frankfurt, Germany
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32
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Poirot M, Silvente-Poirot S. The tumor-suppressor cholesterol metabolite, dendrogenin A, is a new class of LXR modulator activating lethal autophagy in cancers. Biochem Pharmacol 2018; 153:75-81. [PMID: 29409832 DOI: 10.1016/j.bcp.2018.01.046] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 01/29/2018] [Indexed: 12/31/2022]
Abstract
Dendrogenin A (DDA) is a mammalian cholesterol metabolite recently identified that displays tumor suppressor properties. The discovery of DDA has revealed the existence in mammals of a new metabolic branch in the cholesterol pathway centered on 5,6α-epoxycholesterol and bridging cholesterol metabolism with histamine metabolism. Metabolic studies showed a drop in DDA levels in cancer cells and tumors compared to normal cells, suggesting a link between DDA metabolism deregulation and oncogenesis. Importantly, complementation of cancer cells with DDA induced 1) cancer cell re-differentiation, 2) blockade of 6-oxo-cholestan-3β,5α-diol (OCDO) production, an endogenous tumor promoter and 3) lethal autophagy in tumors. Importantly, by binding the liver X receptor (LXR), DDA activates the expression of genes controlling autophagy. These genes include NR4A1, NR4A3, LC3 and TFEB. The canonical LXR ligands 22(R)hydroxycholesterol, TO901317 and GW3965 did not induce these effects indicating that DDA delineates a new class of selective LXR modulator (SLiM). The induction of lethal autophagy by DDA was associated with the accumulation in cancer cells of lysosomes and of the pro-lysosomal cholesterol precursor zymostenol due to the inhibition of the 3β-hydroxysteroid-Δ8Δ7-isomerase enzyme (D8D7I). The anti-cancer efficacy of DDA was established on different mouse and human cancers such as breast cancers, melanoma and acute myeloid leukemia, including patient derived xenografts, and did not discriminate bulk cancer cells from cancer cell progenitors. Together these data highlight that the mammalian metabolite DDA is a promising anticancer compound with a broad range of anticancer applications. In addition, DDA and LXR are new actors in the transcriptional control of autophagy and DDA being a "first in line" driver of lethal autophagy in cancers via the LXR.
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Affiliation(s)
- Marc Poirot
- Team "Cholesterol Metabolism and Therapeutic Innovations", Cancer Research Center of Toulouse, UMR 1037 INSERM-University of Toulouse, Toulouse, France; Cancer Research Center of Toulouse, UMR 1037 INSERM-University of Toulouse, Toulouse, France.
| | - Sandrine Silvente-Poirot
- Team "Cholesterol Metabolism and Therapeutic Innovations", Cancer Research Center of Toulouse, UMR 1037 INSERM-University of Toulouse, Toulouse, France; Cancer Research Center of Toulouse, UMR 1037 INSERM-University of Toulouse, Toulouse, France.
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33
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Bridoux MC, Sobiechowska M, Pérez-Fuentetaja A, Alben KT. LC-PDA/APCIitMS identification of algal carotenoid and oxysterol precursors to fatty acid esters in hydrolyzed extracts of the freshwater mussel Dreissena bugensis. Anal Bioanal Chem 2017; 409:6745-6760. [DOI: 10.1007/s00216-017-0562-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/18/2017] [Accepted: 08/01/2017] [Indexed: 12/01/2022]
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34
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Ichimaru Y, Fujii T, Saito H, Sano M, Uchiyama T, Miyairi S. 5-Bromoindirubin 3′-(O-oxiran-2-ylmethyl)oxime: A long-acting anticancer agent and a suicide inhibitor for epoxide hydrolase. Bioorg Med Chem 2017; 25:4665-4676. [DOI: 10.1016/j.bmc.2017.07.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/20/2017] [Accepted: 07/06/2017] [Indexed: 10/19/2022]
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35
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Wilson C, De Oliveira GS, Adriani PP, Chambergo FS, Dias MV. Structure of a soluble epoxide hydrolase identified in Trichoderma reesei. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2017; 1865:1039-1045. [DOI: 10.1016/j.bbapap.2017.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 04/14/2017] [Accepted: 05/08/2017] [Indexed: 01/01/2023]
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36
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Pineau E, Xu L, Renault H, Trolet A, Navrot N, Ullmann P, Légeret B, Verdier G, Beisson F, Pinot F. Arabidopsis thaliana EPOXIDE HYDROLASE1 (AtEH1) is a cytosolic epoxide hydrolase involved in the synthesis of poly-hydroxylated cutin monomers. THE NEW PHYTOLOGIST 2017; 215:173-186. [PMID: 28497532 DOI: 10.1111/nph.14590] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 03/22/2017] [Indexed: 06/07/2023]
Abstract
Epoxide hydrolases (EHs) are present in all living organisms. They have been extensively characterized in mammals; however, their biological functions in plants have not been demonstrated. Based on in silico analysis, we identified AtEH1 (At3g05600), a putative Arabidopsis thaliana epoxide hydrolase possibly involved in cutin monomer synthesis. We expressed AtEH1 in yeast and studied its localization in vivo. We also analyzed the composition of cutin from A. thaliana lines in which this gene was knocked out. Incubation of recombinant AtEH1 with epoxy fatty acids confirmed its capacity to hydrolyze epoxides of C18 fatty acids into vicinal diols. Transfection of Nicotiana benthamiana leaves with constructs expressing AtEH1 fused to enhanced green fluorescent protein (EGFP) indicated that AtEH1 is localized in the cytosol. Analysis of cutin monomers in loss-of-function Ateh1-1 and Ateh1-2 mutants showed an accumulation of 18-hydroxy-9,10-epoxyoctadecenoic acid and a concomitant decrease in corresponding vicinal diols in leaf and seed cutin. Compared with wild-type seeds, Ateh1 seeds showed delayed germination under osmotic stress conditions and increased seed coat permeability to tetrazolium red. This work reports a physiological role for a plant EH and identifies AtEH1 as a new member of the complex machinery involved in cutin synthesis.
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Affiliation(s)
- Emmanuelle Pineau
- Université de Strasbourg, CNRS, IBMP UPR 2357, F-67000, Strasbourg, France
| | - Lin Xu
- Institute of Biosciences and Biotechnologies, CEA-CNRS-Aix Marseille Université, UMR 7265, LB3M, F-13108, Cadarache, France
| | - Hugues Renault
- Université de Strasbourg, CNRS, IBMP UPR 2357, F-67000, Strasbourg, France
| | - Adrien Trolet
- Université de Strasbourg, CNRS, IBMP UPR 2357, F-67000, Strasbourg, France
| | - Nicolas Navrot
- Université de Strasbourg, CNRS, IBMP UPR 2357, F-67000, Strasbourg, France
| | - Pascaline Ullmann
- Université de Strasbourg, CNRS, IBMP UPR 2357, F-67000, Strasbourg, France
| | - Bertrand Légeret
- Institute of Biosciences and Biotechnologies, CEA-CNRS-Aix Marseille Université, UMR 7265, LB3M, F-13108, Cadarache, France
| | - Gaëtan Verdier
- Université de Strasbourg, CNRS, IBMP UPR 2357, F-67000, Strasbourg, France
| | - Fred Beisson
- Institute of Biosciences and Biotechnologies, CEA-CNRS-Aix Marseille Université, UMR 7265, LB3M, F-13108, Cadarache, France
| | - Franck Pinot
- Université de Strasbourg, CNRS, IBMP UPR 2357, F-67000, Strasbourg, France
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37
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Chownk M, Sharma A, Singh K, Kaur J. mesT, a unique epoxide hydrolase, is essential for optimal growth of Mycobacterium tuberculosis in the presence of styrene oxide. Future Microbiol 2017; 12:527-546. [DOI: 10.2217/fmb-2016-0206] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: mesT of Mycobacterium tuberculosis, a hypothetical/putative epoxide hydrolase, is predicted to convert toxic epoxides to the more water-soluble and less toxic diols. Detailed characterization of the protein was carried out. Results: mesT demonstrated esterase as well as epoxide hydrolase activity. It was membrane bound and was upregulated under hypoxic conditions. The enzyme was able to degrade styrene oxide. The presence of antisense against this gene resulted in the inhibition of in vitro bacterial growth/survival in the presence of styrene oxide. Conclusion & future perspective: We demonstrated that mesT possessed epoxide hydrolase activity and styrene oxide might be its physiological substrate. Inhibition of mesT reduced the growth of the bacteria in presence of styrene oxide and its expression under hypoxic condition suggested its role in intracellular survival of bacteria.
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Affiliation(s)
- Manisha Chownk
- Department of Biotechnology, Panjab University, 160014 Chandigarh, India
| | - Aashish Sharma
- Department of Biotechnology, Panjab University, 160014 Chandigarh, India
| | - Kashmir Singh
- Department of Biotechnology, Panjab University, 160014 Chandigarh, India
| | - Jagdeep Kaur
- Department of Biotechnology, Panjab University, 160014 Chandigarh, India
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Dalenc F, Iuliano L, Filleron T, Zerbinati C, Voisin M, Arellano C, Chatelut E, Marquet P, Samadi M, Roché H, Poirot M, Silvente-Poirot S. Circulating oxysterol metabolites as potential new surrogate markers in patients with hormone receptor-positive breast cancer: Results of the OXYTAM study. J Steroid Biochem Mol Biol 2017; 169:210-218. [PMID: 27343991 DOI: 10.1016/j.jsbmb.2016.06.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 06/20/2016] [Accepted: 06/22/2016] [Indexed: 12/30/2022]
Abstract
Accumulating evidence indicates that cholesterol oxygenation products, also known as oxysterols (OS), are involved in breast cancer (BC) promotion. The impact of Tam, as well as aromatase inhibitors (AI), an alternative BC endocrine therapy (ET), on OS metabolism in patients is currently unknown. We conducted a prospective clinical study in BC patients receiving Tam (n=15) or AI (n=14) in adjuvant or in metastatic settings. The primary end point was the feasibility of detecting and quantifying 11 different OS in the circulation of patients before and after 28days of treatment with Tam or AI. Key secondary end points were the measurements of variations in the concentrations of OS according to differences between patients and treatments. OS profiling in the serum of patients was determined by gas chromatography coupled to mass spectrometry. OS profiling was conducted in all patients both at baseline and during treatment regimens. An important inter-individual variability was observed for each OS. Interestingly 5,6β-epoxycholesterol relative concentrations significantly increased in the entire population (p=0.0109), while no increase in Cholestane-triol (CT) levels was measured. Interestingly, we found that, in contrast to AI, Tam therapy significantly decreased blood levels of 24-hydroxycholesterol (24-HC), 7α-HC and 25-HC (a tumor promoter) (p=0.0007, p=0.0231 and p=0.0231, respectively), whereas 4β-HC levels increased (p=0.0010). Interestingly, levels of 27-HC (a tumor promoter) significantly increased in response to AI (p=0.0342), but not Tam treatment. According to these results, specific OS are promising candidate markers of Tam and AI efficacy. Thus, further clinical investigations are needed to confirm the use of oxysterols as biomarkers of both prognosis and/or the efficacy of ET.
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Affiliation(s)
- Florence Dalenc
- Department of Medical Oncology, Institut Claudius Regaud, IUCT-Oncopole, Toulouse, France; Inserm UMR 1037, Team "Cholesterol metabolism and therapeutic innovations", Cancer Research Center of Toulouse, Toulouse, France.
| | - Luiggi Iuliano
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
| | - Thomas Filleron
- Department of Biostatistics, Institut Claudius Regaud, IUCT-Oncopole, Toulouse, France
| | - Chiara Zerbinati
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
| | - Maud Voisin
- Department of Medical Oncology, Institut Claudius Regaud, IUCT-Oncopole, Toulouse, France; Inserm UMR 1037, Team "Cholesterol metabolism and therapeutic innovations", Cancer Research Center of Toulouse, Toulouse, France; University of Toulouse III, Toulouse France
| | - Cécile Arellano
- Institut Claudius-Regaud, IUCT-Oncopole and EA4553 University of Toulouse III Paul-Sabatier, Toulouse, France
| | - Etienne Chatelut
- Institut Claudius-Regaud, IUCT-Oncopole and EA4553 University of Toulouse III Paul-Sabatier, Toulouse, France
| | - Pierre Marquet
- CHU Limoges, University of Limoges, U850 INSERM, Limoges, France
| | - Mohammad Samadi
- LCPMC-A2, ICPM, Département de Chimie, University of Lorraine, Metz, France
| | - Henri Roché
- Department of Medical Oncology, Institut Claudius Regaud, IUCT-Oncopole, Toulouse, France
| | - Marc Poirot
- Inserm UMR 1037, Team "Cholesterol metabolism and therapeutic innovations", Cancer Research Center of Toulouse, Toulouse, France; University of Toulouse III, Toulouse France.
| | - Sandrine Silvente-Poirot
- Inserm UMR 1037, Team "Cholesterol metabolism and therapeutic innovations", Cancer Research Center of Toulouse, Toulouse, France; University of Toulouse III, Toulouse France
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39
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Hvorecny KL, Bahl CD, Kitamura S, Lee KSS, Hammock BD, Morisseau C, Madden DR. Active-Site Flexibility and Substrate Specificity in a Bacterial Virulence Factor: Crystallographic Snapshots of an Epoxide Hydrolase. Structure 2017; 25:697-707.e4. [PMID: 28392259 DOI: 10.1016/j.str.2017.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/20/2017] [Accepted: 03/09/2017] [Indexed: 02/07/2023]
Abstract
Pseudomonas aeruginosa secretes an epoxide hydrolase with catalytic activity that triggers degradation of the cystic fibrosis transmembrane conductance regulator (CFTR) and perturbs other host defense networks. Targets of this CFTR inhibitory factor (Cif) are largely unknown, but include an epoxy-fatty acid. In this class of signaling molecules, chirality can be an important determinant of physiological output and potency. Here we explore the active-site chemistry of this two-step α/β-hydrolase and its implications for an emerging class of virulence enzymes. In combination with hydrolysis data, crystal structures of 15 trapped hydroxyalkyl-enzyme intermediates reveal the stereochemical basis of Cif's substrate specificity, as well as its regioisomeric and enantiomeric preferences. The structures also reveal distinct sets of conformational changes that enable the active site to expand dramatically in two directions, accommodating a surprising array of potential physiological epoxide targets. These new substrates may contribute to Cif's diverse effects in vivo, and thus to the success of P. aeruginosa and other pathogens during infection.
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Affiliation(s)
- Kelli L Hvorecny
- Department of Biochemistry and Cell Biology, Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA
| | - Christopher D Bahl
- Department of Biochemistry and Cell Biology, Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA
| | - Seiya Kitamura
- Department of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California at Davis, Davis, CA 95616, USA
| | - Kin Sing Stephen Lee
- Department of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California at Davis, Davis, CA 95616, USA
| | - Bruce D Hammock
- Department of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California at Davis, Davis, CA 95616, USA
| | - Christophe Morisseau
- Department of Entomology and Nematology, UC Davis Comprehensive Cancer Center, University of California at Davis, Davis, CA 95616, USA
| | - Dean R Madden
- Department of Biochemistry and Cell Biology, Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA.
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40
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El-Sherbeni AA, El-Kadi AOS. Microsomal cytochrome P450 as a target for drug discovery and repurposing. Drug Metab Rev 2016; 49:1-17. [DOI: 10.1080/03602532.2016.1257021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Ahmed A. El-Sherbeni
- Faculty of Pharmacy and Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, Alberta, Canada
| | - Ayman O. S. El-Kadi
- Faculty of Pharmacy and Pharmaceutical Sciences, 2142J Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, Alberta, Canada
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41
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From tamoxifen to dendrogenin A: The discovery of a mammalian tumor suppressor and cholesterol metabolite. Biochimie 2016; 130:109-114. [DOI: 10.1016/j.biochi.2016.05.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 05/27/2016] [Indexed: 11/22/2022]
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42
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Endogenous B-ring oxysterols inhibit the Hedgehog component Smoothened in a manner distinct from cyclopamine or side-chain oxysterols. Proc Natl Acad Sci U S A 2016; 113:1604984113. [PMID: 27162362 DOI: 10.1073/pnas.1604984113] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Cellular lipids are speculated to act as key intermediates in Hedgehog signal transduction, but their precise identity and function remain enigmatic. In an effort to identify such lipids, we pursued a Hedgehog pathway inhibitory activity that is particularly abundant in flagellar lipids of Chlamydomonas reinhardtii, resulting in the purification and identification of ergosterol endoperoxide, a B-ring oxysterol. A mammalian analog of ergosterol, 7-dehydrocholesterol (7-DHC), accumulates in Smith-Lemli-Opitz syndrome, a human genetic disease that phenocopies deficient Hedgehog signaling and is caused by genetic loss of 7-DHC reductase. We found that depleting endogenous 7-DHC with methyl-β-cyclodextrin treatment enhances Hedgehog activation by a pathway agonist. Conversely, exogenous addition of 3β,5α-dihydroxycholest-7-en-6-one, a naturally occurring B-ring oxysterol derived from 7-DHC that also accumulates in Smith-Lemli-Opitz syndrome, blocked Hedgehog signaling by inhibiting activation of the essential transduction component Smoothened, through a mechanism distinct from Smoothened modulation by other lipids.
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43
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Shih PB, Yang J, Morisseau C, German JB, Zeeland AASV, Armando AM, Quehenberger O, Bergen AW, Magistretti P, Berrettini W, Halmi KA, Schork N, Hammock BD, Kaye W. Dysregulation of soluble epoxide hydrolase and lipidomic profiles in anorexia nervosa. Mol Psychiatry 2016; 21:537-46. [PMID: 25824304 PMCID: PMC4591075 DOI: 10.1038/mp.2015.26] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 01/13/2015] [Accepted: 01/23/2015] [Indexed: 02/07/2023]
Abstract
Individuals with anorexia nervosa (AN) restrict eating and become emaciated. They tend to have an aversion to foods rich in fat. Because epoxide hydrolase 2 (EPHX2) was identified as a novel AN susceptibility gene, and because its protein product, soluble epoxide hydrolase (sEH), converts bioactive epoxides of polyunsaturated fatty acid (PUFA) to the corresponding diols, lipidomic and metabolomic targets of EPHX2 were assessed to evaluate the biological functions of EPHX2 and their role in AN. Epoxide substrates of sEH and associated oxylipins were measured in ill AN, recovered AN and gender- and race-matched controls. PUFA and oxylipin markers were tested as potential biomarkers for AN. Oxylipin ratios were calculated as proxy markers of in vivo sEH activity. Several free- and total PUFAs were associated with AN diagnosis and with AN recovery. AN displayed elevated n-3 PUFAs and may differ from controls in PUFA elongation and desaturation processes. Cytochrome P450 pathway oxylipins from arachidonic acid, linoleic acid, alpha-linolenic acid and docosahexaenoic acid PUFAs are associated with AN diagnosis. The diol:epoxide ratios suggest the sEH activity is higher in AN compared with controls. Multivariate analysis illustrates normalization of lipidomic profiles in recovered ANs. EPHX2 influences AN risk through in vivo interaction with dietary PUFAs. PUFA composition and concentrations as well as sEH activity may contribute to the pathogenesis and prognosis of AN. Our data support the involvement of EPHX2-associated lipidomic and oxylipin dysregulations in AN, and reveal their potential as biomarkers to assess responsiveness to future intervention or treatment.
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Affiliation(s)
- P B Shih
- Department of Psychiatry, University of California at San Diego, San Diego, CA, USA
| | - J Yang
- Department of Entomology, University of California at Davis, Davis, CA, USA
| | - C Morisseau
- Department of Entomology, University of California at Davis, Davis, CA, USA
| | - J B German
- Department of Entomology, University of California at Davis, Davis, CA, USA
| | | | - A M Armando
- Department of Psychiatry, University of California at San Diego, San Diego, CA, USA
| | - O Quehenberger
- Department of Psychiatry, University of California at San Diego, San Diego, CA, USA
| | - A W Bergen
- Center for Health Sciences, SRI International, Menlo Park, CA, USA
| | - P Magistretti
- Division of Biological and Environmental Sciences and Engineering, KAUST, Thuwal, KSA and Brain Mind Institute, EPFL, Lausanne, Switzerland
| | - W Berrettini
- Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - K A Halmi
- Department of Psychiatry, Cornell University, New York, NY, USA
| | - N Schork
- Department of Human Biology, J. Craig Venter Institute, San Diego, CA, USA
| | - B D Hammock
- Department of Entomology, University of California at Davis, Davis, CA, USA
| | - W Kaye
- Department of Psychiatry, University of California at San Diego, San Diego, CA, USA
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44
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El-Sherbeni AA, El-Kadi AOS. Repurposing Resveratrol and Fluconazole To Modulate Human Cytochrome P450-Mediated Arachidonic Acid Metabolism. Mol Pharm 2016; 13:1278-88. [PMID: 26918316 DOI: 10.1021/acs.molpharmaceut.5b00873] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Cytochrome P450 (P450) enzymes metabolize arachidonic acid (AA) to several biologically active epoxyeicosatrienoic acids (EETs) and hydroxyeicosatetraenoic acids (HETEs). Repurposing clinically-approved drugs could provide safe and readily available means to control EETs and HETEs levels in humans. Our aim was to determine how to significantly and selectively modulate P450-AA metabolism in humans by clinically-approved drugs. Liquid chromatography-mass spectrometry was used to determine the formation of 15 AA metabolites by human recombinant P450 enzymes, as well as human liver and kidney microsomes. CYP2C19 showed the highest EET-forming activity, while CYP1B1 and CYP2C8 showed the highest midchain HETE-forming activities. CYP1A1 and CYP4 showed the highest subterminal- and 20-HETE-forming activity, respectively. Resveratrol and fluconazole produced the most selective and significant modulation of hepatic P450-AA metabolism, comparable to investigational agents. Monte Carlo simulations showed that 90% of human population would experience a decrease by 6-22%, 16-39%, and 16-35% in 16-, 18-, and 20-HETE formation, respectively, after 2.5 g daily of resveratrol, and by 22-31% and 14-23% in 8,9- and 14,15-EET formation after 50 mg of fluconazole. In conclusion, clinically-approved drugs can provide selective and effective means to modulate P450-AA metabolism, comparable to investigational drugs. Resveratrol and fluconazole are good candidates to be repurposed as new P450-based treatments.
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Affiliation(s)
- Ahmed A El-Sherbeni
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta , Edmonton, Alberta, Canada T6G 2E1
| | - Ayman O S El-Kadi
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta , Edmonton, Alberta, Canada T6G 2E1
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45
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Hughes TB, Miller GP, Swamidass SJ. Modeling Epoxidation of Drug-like Molecules with a Deep Machine Learning Network. ACS CENTRAL SCIENCE 2015; 1:168-80. [PMID: 27162970 PMCID: PMC4827534 DOI: 10.1021/acscentsci.5b00131] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Indexed: 05/02/2023]
Abstract
Drug toxicity is frequently caused by electrophilic reactive metabolites that covalently bind to proteins. Epoxides comprise a large class of three-membered cyclic ethers. These molecules are electrophilic and typically highly reactive due to ring tension and polarized carbon-oxygen bonds. Epoxides are metabolites often formed by cytochromes P450 acting on aromatic or double bonds. The specific location on a molecule that undergoes epoxidation is its site of epoxidation (SOE). Identifying a molecule's SOE can aid in interpreting adverse events related to reactive metabolites and direct modification to prevent epoxidation for safer drugs. This study utilized a database of 702 epoxidation reactions to build a model that accurately predicted sites of epoxidation. The foundation for this model was an algorithm originally designed to model sites of cytochromes P450 metabolism (called XenoSite) that was recently applied to model the intrinsic reactivity of diverse molecules with glutathione. This modeling algorithm systematically and quantitatively summarizes the knowledge from hundreds of epoxidation reactions with a deep convolution network. This network makes predictions at both an atom and molecule level. The final epoxidation model constructed with this approach identified SOEs with 94.9% area under the curve (AUC) performance and separated epoxidized and non-epoxidized molecules with 79.3% AUC. Moreover, within epoxidized molecules, the model separated aromatic or double bond SOEs from all other aromatic or double bonds with AUCs of 92.5% and 95.1%, respectively. Finally, the model separated SOEs from sites of sp(2) hydroxylation with 83.2% AUC. Our model is the first of its kind and may be useful for the development of safer drugs. The epoxidation model is available at http://swami.wustl.edu/xenosite.
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Affiliation(s)
- Tyler B. Hughes
- Department
of Pathology and Immunology, Washington
University School of Medicine, Campus Box 8118, 660 South Euclid Avenue, St. Louis, Missouri 63110, United States
| | - Grover P. Miller
- Department
of Biochemistry and Molecular Biology, University
of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, United States
| | - S. Joshua Swamidass
- Department
of Pathology and Immunology, Washington
University School of Medicine, Campus Box 8118, 660 South Euclid Avenue, St. Louis, Missouri 63110, United States
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46
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Kodani SD, Hammock BD. The 2014 Bernard B. Brodie award lecture-epoxide hydrolases: drug metabolism to therapeutics for chronic pain. Drug Metab Dispos 2015; 43:788-802. [PMID: 25762541 PMCID: PMC4407705 DOI: 10.1124/dmd.115.063339] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 03/11/2015] [Indexed: 12/24/2022] Open
Abstract
Dr. Bernard Brodie's legacy is built on fundamental discoveries in pharmacology and drug metabolism that were then translated to the clinic to improve patient care. Similarly, the development of a novel class of therapeutics termed the soluble epoxide hydrolase (sEH) inhibitors was originally spurred by fundamental research exploring the biochemistry and physiology of the sEH. Here, we present an overview of the history and current state of research on epoxide hydrolases, specifically focusing on sEHs. In doing so, we start with the translational project studying the metabolism of the insect juvenile hormone mimic R-20458 [(E)-6,7-epoxy-1-(4-ethylphenoxy)-3,7-dimethyl-2-octene], which led to the identification of the mammalian sEH. Further investigation of this enzyme and its substrates, including the epoxyeicosatrienoic acids, led to insight into mechanisms of inflammation, chronic and neuropathic pain, angiogenesis, and other physiologic processes. This basic knowledge in turn led to the development of potent inhibitors of the sEH that are promising therapeutics for pain, hypertension, chronic obstructive pulmonary disorder, arthritis, and other disorders.
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Affiliation(s)
- Sean D Kodani
- Department of Entomology and Nematology, Comprehensive Cancer Center, University of California, Davis, California
| | - Bruce D Hammock
- Department of Entomology and Nematology, Comprehensive Cancer Center, University of California, Davis, California
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Tsolis KC, Bei ES, Papathanasiou I, Kostopoulou F, Gkretsi V, Kalantzaki K, Malizos K, Zervakis M, Tsezou A, Economou A. Comparative proteomic analysis of hypertrophic chondrocytes in osteoarthritis. Clin Proteomics 2015; 12:12. [PMID: 25945082 PMCID: PMC4415313 DOI: 10.1186/s12014-015-9085-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 04/15/2015] [Indexed: 02/07/2023] Open
Abstract
Background Osteoarthritis (OA) is a multi-factorial disease leading progressively to loss of articular cartilage and subsequently to loss of joint function. While hypertrophy of chondrocytes is a physiological process implicated in the longitudinal growth of long bones, hypertrophy-like alterations in chondrocytes play a major role in OA. We performed a quantitative proteomic analysis in osteoarthritic and normal chondrocytes followed by functional analyses to investigate proteome changes and molecular pathways involved in OA pathogenesis. Methods Chondrocytes were isolated from articular cartilage of ten patients with primary OA undergoing knee replacement surgery and six normal donors undergoing fracture repair surgery without history of joint disease and no OA clinical manifestations. We analyzed the proteome of chondrocytes using high resolution mass spectrometry and quantified it by label-free quantification and western blot analysis. We also used WebGestalt, a web-based enrichment tool for the functional annotation and pathway analysis of the differentially synthesized proteins, using the Wikipathways database. ClueGO, a Cytoscape plug-in, is also used to compare groups of proteins and to visualize the functionally organized Gene Ontology (GO) terms and pathways in the form of dynamical network structures. Results The proteomic analysis led to the identification of a total of ~2400 proteins. 269 of them showed differential synthesis levels between the two groups. Using functional annotation, we found that proteins belonging to pathways associated with regulation of the actin cytoskeleton, EGF/EGFR, TGF-β, MAPK signaling, integrin-mediated cell adhesion, and lipid metabolism were significantly enriched in the OA samples (p ≤10−5). We also observed that the proteins GSTP1, PLS3, MYOF, HSD17B12, PRDX2, APCS, PLA2G2A SERPINH1/HSP47 and MVP, show distinct synthesis levels, characteristic for OA or control chondrocytes. Conclusion In this study we compared the quantitative changes in proteins synthesized in osteoarthritic compared to normal chondrocytes. We identified several pathways and proteins to be associated with OA chondrocytes. This study provides evidence for further testing on the molecular mechanism of the disease and also propose proteins as candidate markers of OA chondrocyte phenotype. Electronic supplementary material The online version of this article (doi:10.1186/s12014-015-9085-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Konstantinos C Tsolis
- Institute of Molecular Biology and Biotechnology - FoRTH, Iraklio, Greece ; Department of Microbiology and Immunology, Rega Institute for Medical Research, KULeuven, Leuven, Belgium
| | - Ekaterini S Bei
- School of Electronic and Computer Engineering, Technical Univ. of Crete, Chania, Greece
| | - Ioanna Papathanasiou
- Department of Biology, University of Thessaly, Faculty of Medicine, Larissa, Greece ; Institute for Research & Technology-Thessaly/Centre for Research & Technology-Hellas (CE.R.T.H), Larissa, Greece
| | - Fotini Kostopoulou
- Department of Biology, University of Thessaly, Faculty of Medicine, Larissa, Greece ; Institute for Research & Technology-Thessaly/Centre for Research & Technology-Hellas (CE.R.T.H), Larissa, Greece
| | - Vassiliki Gkretsi
- Institute for Research & Technology-Thessaly/Centre for Research & Technology-Hellas (CE.R.T.H), Larissa, Greece
| | - Kalliopi Kalantzaki
- School of Electronic and Computer Engineering, Technical Univ. of Crete, Chania, Greece
| | - Konstantinos Malizos
- Department of Orthopedics, University of Thessaly, Faculty of Medicine, Larissa, Greece
| | - Michalis Zervakis
- School of Electronic and Computer Engineering, Technical Univ. of Crete, Chania, Greece
| | - Aspasia Tsezou
- Department of Biology, University of Thessaly, Faculty of Medicine, Larissa, Greece ; Institute for Research & Technology-Thessaly/Centre for Research & Technology-Hellas (CE.R.T.H), Larissa, Greece
| | - Anastassios Economou
- Institute of Molecular Biology and Biotechnology - FoRTH, Iraklio, Greece ; Department of Microbiology and Immunology, Rega Institute for Medical Research, KULeuven, Leuven, Belgium
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Zhang HM, Wheeler S, Xia X, Radchuk R, Weber H, Offler CE, Patrick JW. Differential transcriptional networks associated with key phases of ingrowth wall construction in trans-differentiating epidermal transfer cells of Vicia faba cotyledons. BMC PLANT BIOLOGY 2015; 15:103. [PMID: 25887034 PMCID: PMC4437447 DOI: 10.1186/s12870-015-0486-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 04/01/2015] [Indexed: 05/08/2023]
Abstract
BACKGROUND Transfer cells are characterized by intricate ingrowth walls, comprising an uniform wall upon which wall ingrowths are deposited. The ingrowth wall forms a scaffold to support an amplified plasma membrane surface area enriched in membrane transporters that collectively confers transfer cells with an enhanced capacity for membrane transport at bottlenecks for apo-/symplasmic exchange of nutrients. However, the underlying molecular mechanisms regulating polarized construction of the ingrowth wall and membrane transporter profile are poorly understood. RESULTS An RNAseq study of an inducible epidermal transfer cell system in cultured Vicia faba cotyledons identified transfer cell specific transcriptomes associated with uniform wall and wall ingrowth deposition. All functional groups of genes examined were expressed before and following transition to a transfer cell fate. What changed were the isoform profiles of expressed genes within functional groups. Genes encoding ethylene and Ca(2+) signal generation and transduction pathways were enriched during uniform wall construction. Auxin-and reactive oxygen species-related genes dominated during wall ingrowth formation and ABA genes were evenly expressed across ingrowth wall construction. Expression of genes encoding kinesins, formins and villins was consistent with reorganization of cytoskeletal components. Uniform wall and wall ingrowth specific expression of exocyst complex components and SNAREs suggested specific patterns of exocytosis while dynamin mediated endocytotic activity was consistent with establishing wall ingrowth loci. Key regulatory genes of biosynthetic pathways for sphingolipids and sterols were expressed across ingrowth wall construction. Transfer cell specific expression of cellulose synthases was absent. Rather xyloglucan, xylan and pectin biosynthetic genes were selectively expressed during uniform wall construction. More striking was expression of genes encoding enzymes for re-modelling/degradation of cellulose, xyloglucans, pectins and callose. Extensins dominated the cohort of expressed wall structural proteins and particularly so across wall ingrowth development. Ion transporters were selectively expressed throughout ingrowth wall development along with organic nitrogen transporters and a large group of ABC transporters. Sugar transporters were less represented. CONCLUSIONS Pathways regulating signalling and intracellular organization were fine tuned whilst cell wall construction and membrane transporter profiles were altered substantially upon transiting to a transfer cell fate. Each phase of ingrowth wall construction was linked with unique cohorts of expressed genes.
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Affiliation(s)
- Hui-Ming Zhang
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Simon Wheeler
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Xue Xia
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Ruslana Radchuk
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 3, D-06466, Gatersleben, Germany.
| | - Hans Weber
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 3, D-06466, Gatersleben, Germany.
| | - Christina E Offler
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia.
| | - John W Patrick
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia.
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Xu J, Morisseau C, Yang J, Mamatha DM, Hammock BD. Epoxide hydrolase activities and epoxy fatty acids in the mosquito Culex quinquefasciatus. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2015; 59:41-9. [PMID: 25686802 PMCID: PMC4387068 DOI: 10.1016/j.ibmb.2015.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 02/05/2015] [Accepted: 02/05/2015] [Indexed: 05/27/2023]
Abstract
Culex mosquitoes have emerged as important model organisms for mosquito biology, and are disease vectors for multiple mosquito-borne pathogens, including West Nile virus. We characterized epoxide hydrolase activities in the mosquito Culex quinquefasciatus, which suggested multiple forms of epoxide hydrolases were present. We found EH activities on epoxy eicosatrienoic acids (EETs). EETs and other eicosanoids are well-established lipid signaling molecules in vertebrates. We showed EETs can be synthesized in vitro from arachidonic acids by mosquito lysate, and EETs were also detected in vivo both in larvae and adult mosquitoes by LC-MS/MS. The EH activities on EETs can be induced by blood feeding, and the highest activity was observed in the midgut of female mosquitoes. The enzyme activities on EETs can be inhibited by urea-based inhibitors designed for mammalian soluble epoxide hydrolases (sEH). The sEH inhibitors have been shown to play diverse biological roles in mammalian systems, and they can be useful tools to study the function of EETs in mosquitoes. Besides juvenile hormone metabolism and detoxification, insect epoxide hydrolases may also play a role in regulating lipid signaling molecules, such as EETs and other epoxy fatty acids, synthesized in vivo or obtained from blood feeding by female mosquitoes.
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Affiliation(s)
- Jiawen Xu
- Department of Entomology and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA
| | - Christophe Morisseau
- Department of Entomology and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA
| | - Jun Yang
- Department of Entomology and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA
| | - Dadala M Mamatha
- Department of Entomology and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA
| | - Bruce D Hammock
- Department of Entomology and UC Davis Comprehensive Cancer Center, University of California, Davis, CA 95616, USA.
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Lu YB, Qi YP, Yang LT, Lee J, Guo P, Ye X, Jia MY, Li ML, Chen LS. Long-term boron-deficiency-responsive genes revealed by cDNA-AFLP differ between Citrus sinensis roots and leaves. FRONTIERS IN PLANT SCIENCE 2015; 6:585. [PMID: 26284101 PMCID: PMC4517394 DOI: 10.3389/fpls.2015.00585] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 07/13/2015] [Indexed: 05/20/2023]
Abstract
Seedlings of Citrus sinensis (L.) Osbeck were supplied with boron (B)-deficient (without H3BO3) or -sufficient (10 μM H3BO3) nutrient solution for 15 weeks. We identified 54 (38) and 38 (45) up (down)-regulated cDNA-AFLP bands (transcript-derived fragments, TDFs) from B-deficient leaves and roots, respectively. These TDFs were mainly involved in protein and amino acid metabolism, carbohydrate and energy metabolism, nucleic acid metabolism, cell transport, signal transduction, and stress response and defense. The majority of the differentially expressed TDFs were isolated only from B-deficient roots or leaves, only seven TDFs with the same GenBank ID were isolated from the both. In addition, ATP biosynthesis-related TDFs were induced in B-deficient roots, but unaffected in B-deficient leaves. Most of the differentially expressed TDFs associated with signal transduction and stress defense were down-regulated in roots, but up-regulated in leaves. TDFs related to protein ubiquitination and proteolysis were induced in B-deficient leaves except for one TDF, while only two down-regulated TDFs associated with ubiquitination were detected in B-deficient roots. Thus, many differences existed in long-term B-deficiency-responsive genes between roots and leaves. In conclusion, our findings provided a global picture of the differential responses occurring in B-deficient roots and leaves and revealed new insight into the different adaptive mechanisms of C. sinensis roots and leaves to B-deficiency at the transcriptional level.
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Affiliation(s)
- Yi-Bin Lu
- Department of Resource and Environment, College of Resource and Environmental Science, Fujian Agriculture and Forestry UniversityFuzhou, China
- Institute of Horticultural Plant Physiology, Biochemistry, and Molecular Biology, Fujian Agriculture and Forestry UniversityFuzhou, China
| | - Yi-Ping Qi
- Institute of Materia Medica, Fujian Academy of Medical SciencesFuzhou, China
| | - Lin-Tong Yang
- Department of Resource and Environment, College of Resource and Environmental Science, Fujian Agriculture and Forestry UniversityFuzhou, China
- Institute of Horticultural Plant Physiology, Biochemistry, and Molecular Biology, Fujian Agriculture and Forestry UniversityFuzhou, China
| | - Jinwook Lee
- Department of Horticultural Science, Kyungpook National UniversityDaegu, South Korea
| | - Peng Guo
- Department of Resource and Environment, College of Resource and Environmental Science, Fujian Agriculture and Forestry UniversityFuzhou, China
- Institute of Horticultural Plant Physiology, Biochemistry, and Molecular Biology, Fujian Agriculture and Forestry UniversityFuzhou, China
| | - Xin Ye
- Department of Resource and Environment, College of Resource and Environmental Science, Fujian Agriculture and Forestry UniversityFuzhou, China
- Institute of Horticultural Plant Physiology, Biochemistry, and Molecular Biology, Fujian Agriculture and Forestry UniversityFuzhou, China
| | - Meng-Yang Jia
- Department of Resource and Environment, College of Resource and Environmental Science, Fujian Agriculture and Forestry UniversityFuzhou, China
| | - Mei-Li Li
- Department of Resource and Environment, College of Resource and Environmental Science, Fujian Agriculture and Forestry UniversityFuzhou, China
| | - Li-Song Chen
- Department of Resource and Environment, College of Resource and Environmental Science, Fujian Agriculture and Forestry UniversityFuzhou, China
- Institute of Horticultural Plant Physiology, Biochemistry, and Molecular Biology, Fujian Agriculture and Forestry UniversityFuzhou, China
- The Higher Educational Key Laboratory of Fujian Province for Soil Ecosystem Health and Regulation, Fujian Agriculture and Forestry UniversityFuzhou, China
- *Correspondence: Li-Song Chen, Department of Resource and Environment, College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Boxue Building, No. 15 Shangxiadian Road, Cangshan District, Fuzhou 350002, China
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