1
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Mérignac-Lacombe J, Kornbausch N, Sivarajan R, Boichot V, Berg K, Oberwinkler H, Saliba AE, Loos HM, Ehret Kasemo T, Scherzad A, Bodem J, Buettner A, Neiers F, Erhard F, Hackenberg S, Heydel JM, Steinke M. Characterization of a Human Respiratory Mucosa Model to Study Odorant Metabolism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:12696-12706. [PMID: 38775624 DOI: 10.1021/acs.jafc.4c00752] [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: 06/06/2024]
Abstract
Nasal xenobiotic metabolizing enzymes (XMEs) are important for the sense of smell because they influence odorant availability and quality. Since the major part of the human nasal cavity is lined by a respiratory mucosa, we hypothesized that this tissue contributed to nasal odorant metabolism through XME activity. Thus, we built human respiratory tissue models and characterized the XME profiles using single-cell RNA sequencing. We focused on the XMEs dicarbonyl and l-xylulose reductase, aldehyde dehydrogenase (ALDH) 1A1, and ALDH3A1, which play a role in food odorant metabolism. We demonstrated protein abundance and localization in the tissue models and showed the metabolic activity of the corresponding enzyme families by exposing the models to the odorants 3,4-hexandione and benzaldehyde. Using gas chromatography coupled with mass spectrometry, we observed, for example, a significantly higher formation of the corresponding metabolites 4-hydroxy-3-hexanone (39.03 ± 1.5%, p = 0.0022), benzyl alcohol (10.05 ± 0.88%, p = 0.0008), and benzoic acid (8.49 ± 0.57%, p = 0.0004) in odorant-treated tissue models compared to untreated controls (0 ± 0, 0.12 ± 0.12, and 0.18 ± 0.18%, respectively). This is the first study that reveals the XME profile of tissue-engineered human respiratory mucosa models and demonstrates their suitability to study nasal odorant metabolism.
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Affiliation(s)
- Jeanne Mérignac-Lacombe
- Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro, Université de Bourgogne, 9 E bd Jeanne d'Arc, 21000 Dijon, France
- Chair of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Nicole Kornbausch
- Chair of Aroma and Smell Research, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 9, 91054 Erlangen, Germany
| | - Rinu Sivarajan
- Chair of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Valentin Boichot
- Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro, Université de Bourgogne, 9 E bd Jeanne d'Arc, 21000 Dijon, France
| | - Kevin Berg
- Institute for Virology and Immunobiology, University of Würzburg, Versbacher Str. 7, 97078 Würzburg, Germany
- Faculty for Informatics and Data Science, University of Regensburg, Bajuwarenstraße 4, 93053 Regensburg, Germany
| | - Heike Oberwinkler
- Chair of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Antoine-Emmanuel Saliba
- Helmholtz Institute for RNA-based Infection Research, Helmholtz-Center for Infection Research (HZI), Josef-Schneider-Straße 2, 97080 Würzburg, Germany
- Institute of Molecular Infection Biology, University of Würzburg, Josef-Schneider-Str. 2, 97080 Würzburg, Germany
| | - Helene M Loos
- Chair of Aroma and Smell Research, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 9, 91054 Erlangen, Germany
- Fraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Str. 35, 85354 Freising, Germany
- FAU Research Center "New Bioactive Compounds", Schlossplatz 4, 91054 Erlangen, Germany
| | - Totta Ehret Kasemo
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University Hospital Würzburg, Josef-Schneider-Straße 11, 97080 Würzburg, Germany
| | - Agmal Scherzad
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University Hospital Würzburg, Josef-Schneider-Straße 11, 97080 Würzburg, Germany
| | - Jochen Bodem
- Institute for Virology and Immunobiology, University of Würzburg, Versbacher Str. 7, 97078 Würzburg, Germany
| | - Andrea Buettner
- Chair of Aroma and Smell Research, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 9, 91054 Erlangen, Germany
- Fraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Str. 35, 85354 Freising, Germany
- FAU Research Center "New Bioactive Compounds", Schlossplatz 4, 91054 Erlangen, Germany
| | - Fabrice Neiers
- Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro, Université de Bourgogne, 9 E bd Jeanne d'Arc, 21000 Dijon, France
| | - Florian Erhard
- Institute for Virology and Immunobiology, University of Würzburg, Versbacher Str. 7, 97078 Würzburg, Germany
- Faculty for Informatics and Data Science, University of Regensburg, Bajuwarenstraße 4, 93053 Regensburg, Germany
| | - Stephan Hackenberg
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University Hospital Würzburg, Josef-Schneider-Straße 11, 97080 Würzburg, Germany
| | - Jean-Marie Heydel
- Centre des Sciences du Goût et de l'Alimentation, CNRS, INRAE, Institut Agro, Université de Bourgogne, 9 E bd Jeanne d'Arc, 21000 Dijon, France
| | - Maria Steinke
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University Hospital Würzburg, Josef-Schneider-Straße 11, 97080 Würzburg, Germany
- Fraunhofer Institute for Silicate Research ISC, Röntgenring 12, 97070 Würzburg, Germany
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2
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Dekeyser A, Huart C, Hummel T, Hox V. Olfactory Loss in Rhinosinusitis: Mechanisms of Loss and Recovery. Int J Mol Sci 2024; 25:4460. [PMID: 38674045 PMCID: PMC11050448 DOI: 10.3390/ijms25084460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/12/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Chronic rhinosinusitis (CRS) is a highly prevalent disease and up to 83% of CRS patients suffer from olfactory dysfunction (OD). Because OD is specifically seen in those CRS patients that present with a type 2 eosinophilic inflammation, it is believed that type 2 inflammatory mediators at the level of the olfactory epithelium are involved in the development of this olfactory loss. However, due to the difficulties in obtaining tissue from the olfactory epithelium, little is known about the true mechanisms of inflammatory OD. Thanks to the COVID-19 pandemic, interest in olfaction has been growing rapidly and several studies have been focusing on disease mechanisms of OD in inflammatory conditions. In this paper, we summarize the most recent data exploring the pathophysiological mechanisms underlying OD in CRS. We also review what is known about the potential capacity of olfactory recovery of the currently available treatments in those patients.
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Affiliation(s)
- Agnès Dekeyser
- Laboratory of Pneumology, ENT (Airways) and Dermatology (Skin) (LUNS), Institute of Experimental and Clinical Research (IREC), UCLouvain, 1200 Brussels, Belgium; (A.D.); (C.H.)
| | - Caroline Huart
- Laboratory of Pneumology, ENT (Airways) and Dermatology (Skin) (LUNS), Institute of Experimental and Clinical Research (IREC), UCLouvain, 1200 Brussels, Belgium; (A.D.); (C.H.)
- Department of Otorhinolaryngology, Head and Neck Surgery, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - Thomas Hummel
- Smell and Taste Clinic, Department of Otorhinolaryngology, University Hospital Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany;
| | - Valérie Hox
- Laboratory of Pneumology, ENT (Airways) and Dermatology (Skin) (LUNS), Institute of Experimental and Clinical Research (IREC), UCLouvain, 1200 Brussels, Belgium; (A.D.); (C.H.)
- Department of Otorhinolaryngology, Head and Neck Surgery, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
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3
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Chen Y, Zhang C, Huang Y, Ma Y, Song Q, Chen H, Jiang G, Gao X. Intranasal drug delivery: The interaction between nanoparticles and the nose-to-brain pathway. Adv Drug Deliv Rev 2024; 207:115196. [PMID: 38336090 DOI: 10.1016/j.addr.2024.115196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024]
Abstract
Intranasal delivery provides a direct and non-invasive method for drugs to reach the central nervous system. Nanoparticles play a crucial role as carriers in augmenting the efficacy of brain delivery. However, the interaction between nanoparticles and the nose-to-brain pathway and how the various biopharmaceutical factors affect brain delivery efficacy remains unclear. In this review, we comprehensively summarized the anatomical and physiological characteristics of the nose-to-brain pathway and the obstacles that hinder brain delivery. We then outlined the interaction between nanoparticles and this pathway and reviewed the biomedical applications of various nanoparticulate drug delivery systems for nose-to-brain drug delivery. This review aims at inspiring innovative approaches for enhancing the effectiveness of nose-to-brain drug delivery in the treatment of different brain disorders.
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Affiliation(s)
- Yaoxing Chen
- Department of Pharmacology and Chemical Biology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China
| | - Chenyun Zhang
- Department of Pharmacology and Chemical Biology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China
| | - Yukun Huang
- Department of Pharmacology and Chemical Biology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China
| | - Yuxiao Ma
- Department of Pharmacology and Chemical Biology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China
| | - Qingxiang Song
- Department of Pharmacology and Chemical Biology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China
| | - Hongzhuan Chen
- Institute of Interdisciplinary Integrative Biomedical Research, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201210, China
| | - Gan Jiang
- Department of Pharmacology and Chemical Biology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China.
| | - Xiaoling Gao
- Department of Pharmacology and Chemical Biology, State Key Laboratory of Systems Medicine for Cancer, Shanghai Universities Collaborative Innovation Center for Translational Medicine, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China.
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4
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Poirier N, Ménétrier F, Moreno J, Boichot V, Heydel JM, Didierjean C, Canivenc-Lavier MC, Canon F, Neiers F, Schwartz M. Rattus norvegicus Glutathione Transferase Omega 1 Localization in Oral Tissues and Interactions with Food Phytochemicals. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:5887-5897. [PMID: 38441878 DOI: 10.1021/acs.jafc.4c00483] [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: 03/21/2024]
Abstract
Glutathione transferases are xenobiotic-metabolizing enzymes with both glutathione-conjugation and ligandin roles. GSTs are present in chemosensory tissues and fluids of the nasal/oral cavities where they protect tissues from exogenous compounds, including food molecules. In the present study, we explored the presence of the omega-class glutathione transferase (GSTO1) in the rat oral cavity. Using immunohistochemistry, GSTO1 expression was found in taste bud cells of the tongue epithelium and buccal cells of the oral epithelium. Buccal and lingual extracts exhibited thiol-transferase activity (4.9 ± 0.1 and 1.8 ± 0.1 μM/s/mg, respectively). A slight reduction from 4.9 ± 0.1 to 4.2 ± 0.1 μM/s/mg (p < 0.05; Student's t test) was observed in the buccal extract with 100 μM GSTO1-IN-1, a specific inhibitor of GSTO1. RnGSTO1 exhibited the usual activities of omega GSTs, i.e., thiol-transferase (catalytic efficiency of 8.9 × 104 M-1·s-1), and phenacyl-glutathione reductase (catalytic efficiency of 8.9 × 105 M-1·s-1) activities, similar to human GSTO1. RnGSTO1 interacts with food phytochemicals, including bitter compounds such as luteolin (Ki = 3.3 ± 1.9 μM). Crystal structure analysis suggests that luteolin most probably binds to RnGSTO1 ligandin site. Our results suggest that GSTO1 could interact with food phytochemicals in the oral cavity.
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Affiliation(s)
- Nicolas Poirier
- CSGA, INRAE, CNRS, University of Burgundy, Institut Agro, Dijon 21065, France
| | - Franck Ménétrier
- CSGA, INRAE, CNRS, University of Burgundy, Institut Agro, Dijon 21065, France
| | - Jade Moreno
- CSGA, INRAE, CNRS, University of Burgundy, Institut Agro, Dijon 21065, France
| | - Valentin Boichot
- CSGA, INRAE, CNRS, University of Burgundy, Institut Agro, Dijon 21065, France
| | - Jean-Marie Heydel
- CSGA, INRAE, CNRS, University of Burgundy, Institut Agro, Dijon 21065, France
| | | | | | - Francis Canon
- CSGA, INRAE, CNRS, University of Burgundy, Institut Agro, Dijon 21065, France
| | - Fabrice Neiers
- CSGA, INRAE, CNRS, University of Burgundy, Institut Agro, Dijon 21065, France
| | - Mathieu Schwartz
- CSGA, INRAE, CNRS, University of Burgundy, Institut Agro, Dijon 21065, France
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5
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Kornbausch N, Mérignac-Lacombe J, Neiers F, Thomas-Danguin T, Heydel JM, Steinke M, Hackenberg S, Loos HM. Perspectives on Nasal Odorant Metabolism Research. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16488-16492. [PMID: 37877768 DOI: 10.1021/acs.jafc.3c04662] [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: 10/26/2023]
Abstract
Olfaction is a multi-step process. At a peripheral level, nasal odorant metabolism contributes to olfaction via signal termination, variation, and regulation. We summarize current techniques used to investigate nasal odorant metabolism and give an outlook on future approaches, such as nasal tissue models and their potential contributions in future research directions.
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Affiliation(s)
- Nicole Kornbausch
- Chair of Aroma and Smell Research, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Jeanne Mérignac-Lacombe
- Centre des Sciences du Goût et de l'Alimentation (CSGA), Centre National de la Recherche Scientifique (CNRS), Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Institut Agro, Université de Bourgogne-Franche Comté, 21000 Dijon, France
- Chair of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97070 Würzburg, Germany
| | - Fabrice Neiers
- Centre des Sciences du Goût et de l'Alimentation (CSGA), Centre National de la Recherche Scientifique (CNRS), Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Institut Agro, Université de Bourgogne-Franche Comté, 21000 Dijon, France
| | - Thierry Thomas-Danguin
- Centre des Sciences du Goût et de l'Alimentation (CSGA), Centre National de la Recherche Scientifique (CNRS), Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Institut Agro, Université de Bourgogne-Franche Comté, 21000 Dijon, France
| | - Jean-Marie Heydel
- Centre des Sciences du Goût et de l'Alimentation (CSGA), Centre National de la Recherche Scientifique (CNRS), Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (INRAE), Institut Agro, Université de Bourgogne-Franche Comté, 21000 Dijon, France
| | - Maria Steinke
- Chair of Tissue Engineering and Regenerative Medicine, University Hospital Würzburg, 97070 Würzburg, Germany
- Fraunhofer Institute for Silicate Research (ISC), 97070 Würzburg, Germany
| | - Stephan Hackenberg
- Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery, University Clinic Wuerzburg, 52074 Aachen, Germany
| | - Helene M Loos
- Chair of Aroma and Smell Research, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
- Fraunhofer Institute for Process Engineering and Packaging (IVV), 85354 Freising, Germany
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6
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Boichot V, Menetrier F, Saliou JM, Lirussi F, Canon F, Folia M, Heydel JM, Hummel T, Menzel S, Steinke M, Hackenberg S, Schwartz M, Neiers F. Characterization of human oxidoreductases involved in aldehyde odorant metabolism. Sci Rep 2023; 13:4876. [PMID: 36966166 PMCID: PMC10039900 DOI: 10.1038/s41598-023-31769-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/16/2023] [Indexed: 03/27/2023] Open
Abstract
Oxidoreductases are major enzymes of xenobiotic metabolism. Consequently, they are essential in the chemoprotection of the human body. Many xenobiotic metabolism enzymes have been shown to be involved in chemosensory tissue protection. Among them, some were additionally shown to be involved in chemosensory perception, acting in signal termination as well as in the generation of metabolites that change the activation pattern of chemosensory receptors. Oxidoreductases, especially aldehyde dehydrogenases and aldo-keto reductases, are the first barrier against aldehyde compounds, which include numerous odorants. Using a mass spectrometry approach, we characterized the most highly expressed members of these families in the human nasal mucus sampled in the olfactory vicinity. Their expression was also demonstrated using immunohistochemistry in human epitheliums sampled in the olfactory vicinity. Recombinant enzymes corresponding to three highly expressed human oxidoreductases (ALDH1A1, ALDH3A1, AKR1B10) were used to demonstrate the high enzymatic activity of these enzymes toward aldehyde odorants. The structure‒function relationship set based on the enzymatic parameters characterization of a series of aldehyde odorant compounds was supported by the X-ray structure resolution of human ALDH3A1 in complex with octanal.
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Affiliation(s)
- Valentin Boichot
- Flavour Perception: Molecular Mechanisms (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, Dijon, France
| | - Franck Menetrier
- Flavour Perception: Molecular Mechanisms (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, Dijon, France
| | - Jean-Michel Saliou
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UAR CNRS 2014-US Inserm 41-PLBS, University of Lille, Lille, France
| | - Frederic Lirussi
- UMR 1231, Lipides Nutrition Cancer, INSERM, 21000, Dijon, France
- UFR des Sciences de Santé, Université Bourgogne Franche-Comté, 25000, Besançon, France
- Plateforme PACE, Laboratoire de Pharmacologie-Toxicologie, Centre Hospitalo-Universitaire Besançon, 25000, Besançon, France
| | - Francis Canon
- Flavour Perception: Molecular Mechanisms (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, Dijon, France
| | - Mireille Folia
- Department of Otolaryngology-Head and Neck Surgery, Dijon University Hospital, 21000, Dijon, France
| | - Jean-Marie Heydel
- Flavour Perception: Molecular Mechanisms (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, Dijon, France
| | - Thomas Hummel
- Smell and Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Dresden, Germany
| | - Susanne Menzel
- Smell and Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Dresden, Germany
| | - Maria Steinke
- Chair of Tissue Engineering and Regenerative Medicine, University Hospital Wuerzburg, Roentgenring 11, 97070, Wuerzburg, Germany
- Fraunhofer Institute for Silicate Research ISC, Roentgenring 11, 97070, Wuerzburg, Germany
| | - Stephan Hackenberg
- Department of Otorhinolaryngology-Head and Neck Surgery, RWTH Aachen University Hospital, Aachen, Germany
| | - Mathieu Schwartz
- Flavour Perception: Molecular Mechanisms (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, Dijon, France.
| | - Fabrice Neiers
- Flavour Perception: Molecular Mechanisms (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, Dijon, France.
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7
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Schwartz M, Boichot V, Fraichard S, Muradova M, Senet P, Nicolai A, Lirussi F, Bas M, Canon F, Heydel JM, Neiers F. Role of Insect and Mammal Glutathione Transferases in Chemoperception. Biomolecules 2023; 13:biom13020322. [PMID: 36830691 PMCID: PMC9953322 DOI: 10.3390/biom13020322] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Glutathione transferases (GSTs) are ubiquitous key enzymes with different activities as transferases or isomerases. As key detoxifying enzymes, GSTs are expressed in the chemosensory organs. They fulfill an essential protective role because the chemosensory organs are located in the main entry paths of exogenous compounds within the body. In addition to this protective function, they modulate the perception process by metabolizing exogenous molecules, including tastants and odorants. Chemosensory detection involves the interaction of chemosensory molecules with receptors. GST contributes to signal termination by metabolizing these molecules. By reducing the concentration of chemosensory molecules before receptor binding, GST modulates receptor activation and, therefore, the perception of these molecules. The balance of chemoperception by GSTs has been shown in insects as well as in mammals, although their chemosensory systems are not evolutionarily connected. This review will provide knowledge supporting the involvement of GSTs in chemoperception, describing their localization in these systems as well as their enzymatic capacity toward odorants, sapid molecules, and pheromones in insects and mammals. Their different roles in chemosensory organs will be discussed in light of the evolutionary advantage of the coupling of the detoxification system and chemosensory system through GSTs.
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Affiliation(s)
- Mathieu Schwartz
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Valentin Boichot
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Stéphane Fraichard
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Mariam Muradova
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Patrick Senet
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS, Université de Bourgogne Franche-Comté, 21078 Dijon, France
| | - Adrien Nicolai
- Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS, Université de Bourgogne Franche-Comté, 21078 Dijon, France
| | - Frederic Lirussi
- UMR 1231, Lipides Nutrition Cancer, INSERM, 21000 Dijon, France
- UFR des Sciences de Santé, Université de Bourgogne Franche-Comté, 25000 Besançon, France
- Plateforme PACE, Laboratoire de Pharmacologie-Toxicologie, Centre Hospitalo-Universitaire Besançon, 25000 Besançon, France
| | - Mathilde Bas
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Francis Canon
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Jean-Marie Heydel
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
| | - Fabrice Neiers
- Laboratory: Flavour Perception: Molecular Mechanims (Flavours), INRAE, CNRS, Institut Agro, Université de Bourgogne Franche-Comté, 21000 Dijon, France
- Correspondence:
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8
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Shirai T, Takase D, Yokoyama J, Nakanishi K, Uehara C, Saito N, Kato-Namba A, Yoshikawa K. Functions of human olfactory mucus and age-dependent changes. Sci Rep 2023; 13:971. [PMID: 36653421 PMCID: PMC9846672 DOI: 10.1038/s41598-023-27937-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 01/10/2023] [Indexed: 01/19/2023] Open
Abstract
Odorants are detected by olfactory sensory neurons, which are covered by olfactory mucus. Despite the existence of studies on olfactory mucus, its constituents, functions, and interindividual variability remain poorly understood. Here, we describe a human study that combined the collection of olfactory mucus and olfactory psychophysical tests. Our analyses revealed that olfactory mucus contains high concentrations of solutes, such as total proteins, inorganic elements, and molecules for xenobiotic metabolism. The high concentrations result in a capacity to capture or metabolize a specific repertoire of odorants. We provide evidence that odorant metabolism modifies our sense of smell. Finally, the amount of olfactory mucus decreases in an age-dependent manner. A follow-up experiment recapitulated the importance of the amount of mucus in the sensitive detection of odorants by their receptors. These findings provide a comprehensive picture of the molecular processes in olfactory mucus and propose a potential cause of olfactory decline.
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Affiliation(s)
- Tomohiro Shirai
- Sensory Science Research, Kao Corporation, 2606 Akabane, Ichikai-machi, Haga, Tochigi, Japan
| | - Dan Takase
- Sensory Science Research, Kao Corporation, 2606 Akabane, Ichikai-machi, Haga, Tochigi, Japan
| | - Junkichi Yokoyama
- Department of Otolaryngology-Head and Neck Surgery, Edogawa Hospital, 2-24-18 Higashikoiwa, Edogawa, Tokyo, Japan.,Department of Otolaryngology-Head and Neck Surgery, Nadogaya Hospital, 2-1-1 Shinkashiwa, Kashiwa, Chiba, Japan
| | - Kuniyuki Nakanishi
- Analytical Science Research, Kao Corporation, 1334 Minato, Wakayama, Wakayama, Japan
| | - Chisaki Uehara
- Sensory Science Research, Kao Corporation, 2606 Akabane, Ichikai-machi, Haga, Tochigi, Japan
| | - Naoko Saito
- Sensory Science Research, Kao Corporation, 2606 Akabane, Ichikai-machi, Haga, Tochigi, Japan
| | - Aya Kato-Namba
- Sensory Science Research, Kao Corporation, 2606 Akabane, Ichikai-machi, Haga, Tochigi, Japan
| | - Keiichi Yoshikawa
- Sensory Science Research, Kao Corporation, 2606 Akabane, Ichikai-machi, Haga, Tochigi, Japan.
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9
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Robert-Hazotte A, Faure P, Ménétrier F, Folia M, Schwartz M, Le Quéré JL, Neiers F, Thomas-Danguin T, Heydel JM. Nasal Odorant Competitive Metabolism Is Involved in the Human Olfactory Process. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:8385-8394. [PMID: 35776896 DOI: 10.1021/acs.jafc.2c02720] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Within the peripheral olfactory process, odorant metabolizing enzymes are involved in the active biotransformation of odorants, thus influencing the intensity and quality of the signal, but little evidence exists in humans. Here, we characterized the fast nasal metabolism of the food aroma pentane-2,3-dione in vivo and identified two resulting metabolites in the nasal-exhaled air, supporting the metabolizing role of the dicarbonyl/l-xylulose reductase. We showed in vitro, using the recombinant enzyme, that pentane-2,3-dione metabolism was inhibited by a second odorant (e.g., butanoic acid) according to an odorant-odorant competitive metabolic mechanism. Hypothesizing that such mechanism exists in vivo, pentane-2,3-dione, presented with a competitive odorant, both at subthreshold concentrations, was actually significantly perceived, suggesting an increase in its nasal availability. Our results, suggesting that odorant metabolizing enzymes can balance the relative detection of odorants in a mixture, in turn influencing the intensity of the signal, should be considered to better manage flavor perception in food.
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Affiliation(s)
- Aline Robert-Hazotte
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265 CNRS/1324 INRA/Université de Bourgogne Franche-Comté, 9 boulevard Jeanne d'Arc, F-21000 Dijon, France
| | - Philippe Faure
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265 CNRS/1324 INRA/Université de Bourgogne Franche-Comté, 9 boulevard Jeanne d'Arc, F-21000 Dijon, France
| | - Franck Ménétrier
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265 CNRS/1324 INRA/Université de Bourgogne Franche-Comté, 9 boulevard Jeanne d'Arc, F-21000 Dijon, France
| | - Mireille Folia
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265 CNRS/1324 INRA/Université de Bourgogne Franche-Comté, 9 boulevard Jeanne d'Arc, F-21000 Dijon, France
- Department of Otolaryngology-Head and Neck Surgery, Dijon University Hospital, F-21000 Dijon, France
| | - Mathieu Schwartz
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265 CNRS/1324 INRA/Université de Bourgogne Franche-Comté, 9 boulevard Jeanne d'Arc, F-21000 Dijon, France
| | - Jean-Luc Le Quéré
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265 CNRS/1324 INRA/Université de Bourgogne Franche-Comté, 9 boulevard Jeanne d'Arc, F-21000 Dijon, France
| | - Fabrice Neiers
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265 CNRS/1324 INRA/Université de Bourgogne Franche-Comté, 9 boulevard Jeanne d'Arc, F-21000 Dijon, France
| | - Thierry Thomas-Danguin
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265 CNRS/1324 INRA/Université de Bourgogne Franche-Comté, 9 boulevard Jeanne d'Arc, F-21000 Dijon, France
| | - Jean-Marie Heydel
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265 CNRS/1324 INRA/Université de Bourgogne Franche-Comté, 9 boulevard Jeanne d'Arc, F-21000 Dijon, France
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10
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Kornbausch N, Debong MW, Buettner A, Heydel JM, Loos H. Odorant Metabolism in Humans. Angew Chem Int Ed Engl 2022; 61:e202202866. [PMID: 35522818 PMCID: PMC9541901 DOI: 10.1002/anie.202202866] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Indexed: 11/08/2022]
Abstract
Odorants are relatively small molecules which are easily taken up and distributed in the human body. Despite their relevance in everyday life, however, only a limited amount of evidence about their metabolism, pathways, and bioactivities in the human body exists. With this Review, we aim to encourage future interdisciplinary research on the function and mechanisms of the biotransformation of odorants, involving different disciplines such as nutrition, medicine, biochemistry, chemistry, and sensory sciences. Starting with a general overview of the different ways of odorant uptake and enzymes involved in the metabolism of odorants, a more precise description of biotransformation processes and their function in the oral cavity, the nose, the lower respiratory tract (LRT), and the gastrointestinal tract (GIT) is given together with an overview of the different routes of odorant excretion. Finally, perspectives for future research are discussed.
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Affiliation(s)
- Nicole Kornbausch
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Chemistry and Pharmacy, GERMANY
| | - Marcel W Debong
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Chemistry and Pharmacy, GERMANY
| | - Andrea Buettner
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Chemistry and Pharmacy, GERMANY
| | - Jean-Marie Heydel
- Centre des Sciences du Goût et de l'Alimentation: Centre des Sciences du Gout et de l'Alimentation, Flavour perception: from molecule to behavior, FRANCE
| | - Helene Loos
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Chemistry and Pharmacy, Henkestr. 9, 91054, Erlangen, GERMANY
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11
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Kornbausch N, Debong MW, Buettner A, Heydel JM, Loos H. Odorant Metabolism in Humans. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Nicole Kornbausch
- Friedrich-Alexander-Universität Erlangen-Nürnberg Chemistry and Pharmacy GERMANY
| | - Marcel W. Debong
- Friedrich-Alexander-Universität Erlangen-Nürnberg Chemistry and Pharmacy GERMANY
| | - Andrea Buettner
- Friedrich-Alexander-Universität Erlangen-Nürnberg Chemistry and Pharmacy GERMANY
| | - Jean-Marie Heydel
- Centre des Sciences du Goût et de l'Alimentation: Centre des Sciences du Gout et de l'Alimentation Flavour perception: from molecule to behavior FRANCE
| | - Helene Loos
- Friedrich-Alexander-Universität Erlangen-Nürnberg Chemistry and Pharmacy Henkestr. 9 91054 Erlangen GERMANY
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12
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Schwartz M, Neiers F, Charles JP, Heydel JM, Muñoz-González C, Feron G, Canon F. Oral enzymatic detoxification system: Insights obtained from proteome analysis to understand its potential impact on aroma metabolization. Compr Rev Food Sci Food Saf 2021; 20:5516-5547. [PMID: 34653315 DOI: 10.1111/1541-4337.12857] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 09/02/2021] [Accepted: 09/10/2021] [Indexed: 12/17/2022]
Abstract
The oral cavity is an entry path into the body, enabling the intake of nutrients but also leading to the ingestion of harmful substances. Thus, saliva and oral tissues contain enzyme systems that enable the early neutralization of xenobiotics as soon as they enter the body. Based on recently published oral proteomic data from several research groups, this review identifies and compiles the primary detoxification enzymes (also known as xenobiotic-metabolizing enzymes) present in saliva and the oral epithelium. The functions and the metabolic activity of these enzymes are presented. Then, the activity of these enzymes in saliva, which is an extracellular fluid, is discussed with regard to the salivary parameters. The next part of the review presents research evidencing oral metabolization of aroma compounds and the putative involved enzymes. The last part discusses the potential role of these enzymatic reactions on the perception of aroma compounds in light of recent pieces of evidence of in vivo oral metabolization of aroma compounds affecting their release in mouth and their perception. Thus, this review highlights different enzymes appearing as relevant to explain aroma metabolism in the oral cavity. It also points out that further works are needed to unravel the effect of the oral enzymatic detoxification system on the perception of food flavor in the context of the consumption of complex food matrices, while considering the impact of food oral processing. Thus, it constitutes a basis to explore these biochemical mechanisms and their impact on flavor perception.
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Affiliation(s)
- Mathieu Schwartz
- Centre des Sciences du Goût et de l'Alimentation (CSGA), AgroSup Dijon, CNRS, INRAE, Université de Bourgogne Franche Comté, Dijon, France
| | - Fabrice Neiers
- Centre des Sciences du Goût et de l'Alimentation (CSGA), AgroSup Dijon, CNRS, INRAE, Université de Bourgogne Franche Comté, Dijon, France
| | - Jean-Philippe Charles
- Centre des Sciences du Goût et de l'Alimentation (CSGA), AgroSup Dijon, CNRS, INRAE, Université de Bourgogne Franche Comté, Dijon, France
| | - Jean-Marie Heydel
- Centre des Sciences du Goût et de l'Alimentation (CSGA), AgroSup Dijon, CNRS, INRAE, Université de Bourgogne Franche Comté, Dijon, France
| | - Carolina Muñoz-González
- Instituto de investigación en Ciencias de la Alimentación (CIAL), (CSIC-UAM), C/ Nicolás Cabrera, Madrid, Spain
| | - Gilles Feron
- Centre des Sciences du Goût et de l'Alimentation (CSGA), AgroSup Dijon, CNRS, INRAE, Université de Bourgogne Franche Comté, Dijon, France
| | - Francis Canon
- Centre des Sciences du Goût et de l'Alimentation (CSGA), AgroSup Dijon, CNRS, INRAE, Université de Bourgogne Franche Comté, Dijon, France
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13
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Ijichi C, Wakabayashi H, Sugiyama S, Hayashi K, Ihara Y, Nishijima H, Touhara K, Kondo K. Odorant metabolism of the olfactory cleft mucus in idiopathic olfactory impairment patients and healthy volunteers. Int Forum Allergy Rhinol 2021; 12:293-301. [PMID: 34637187 DOI: 10.1002/alr.22897] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 08/12/2021] [Accepted: 08/17/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND It remains unclear whether the metabolic activity of nasal mucus in the olfactory and respiratory areas is different. Moreover, age- and olfaction-related changes may affect metabolism. METHODS Hexanal, octanal, and 2-methylbutanal were selected for in vitro metabolism analysis and compared between the olfactory cleft and respiratory mucus of participants < 50-year-old with normal olfaction using gas chromatography mass spectrometry. The metabolic activity of hexanal in the olfactory cleft mucus was further compared between three groups, (1) normal olfaction, age < 50 years old, (2) normal olfaction, age ≥50 years old, and (3) idiopathic olfactory impairment. To characterize the enzyme(s) responsible for aldehyde reduction, we also tested if epalr22897estat and 3,5-dichlorosalicylic acid, types of reductase inhibitors, affect metabolism. RESULTS Conversion of aldehydes to their corresponding alcohols was observed in the olfactory cleft and respiratory mucus. The metabolic production of hexanol, octanol, and 2-methybutanol was significantly higher in the olfactory cleft mucus than in the respiratory mucus (p < 0.01). The metabolic conversion of hexanal to hexanol in the mucus of the idiopathic olfactory impairment group was significantly lower than that in the age-matched normal olfaction group. Excluding the nicotinamide adenine dinucleotide phosphate (NADPH) regenerating system from the reaction mixture inhibited metabolism. The addition of either epalr22897estat or 3,5-dichlorosalicylic acid did not inhibit this metabolic conversion. CONCLUSIONS The enzymatic metabolism of odorants in the olfactory cleft mucus is markedly higher than in the respiratory mucus and decreases in patients with idiopathic olfactory impairment.
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Affiliation(s)
- Chiori Ijichi
- Technology and Solution Development Center, Institute of Food Science and Technologies, Food Products Division, Ajinomoto Co., Inc., Kawasaki, Japan
| | - Hidehiko Wakabayashi
- Technology and Solution Development Center, Institute of Food Science and Technologies, Food Products Division, Ajinomoto Co., Inc., Kawasaki, Japan.,College of Bioresource Sciences, Nihon University, Kameino, Fujisawa, Japan
| | - Shingo Sugiyama
- Technology and Solution Development Center, Institute of Food Science and Technologies, Food Products Division, Ajinomoto Co., Inc., Kawasaki, Japan
| | - Kazuhiro Hayashi
- Technology and Solution Development Center, Institute of Food Science and Technologies, Food Products Division, Ajinomoto Co., Inc., Kawasaki, Japan
| | - Yusuke Ihara
- Technology and Solution Development Center, Institute of Food Science and Technologies, Food Products Division, Ajinomoto Co., Inc., Kawasaki, Japan
| | - Hironobu Nishijima
- Department of Otolaryngology-Head and Neck Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Kazushige Touhara
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kenji Kondo
- Department of Otolaryngology-Head and Neck Surgery, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
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14
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Schwartz M, Menetrier F, Heydel JM, Chavanne E, Faure P, Labrousse M, Lirussi F, Canon F, Mannervik B, Briand L, Neiers F. Interactions Between Odorants and Glutathione Transferases in the Human Olfactory Cleft. Chem Senses 2021; 45:645-654. [PMID: 32822468 DOI: 10.1093/chemse/bjaa055] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Xenobiotic metabolizing enzymes and other proteins, including odorant-binding proteins located in the nasal epithelium and mucus, participate in a series of processes modulating the concentration of odorants in the environment of olfactory receptors (ORs) and finely impact odor perception. These enzymes and transporters are thought to participate in odorant degradation or transport. Odorant biotransformation results in 1) changes in the odorant quantity up to their clearance and the termination of signaling and 2) the formation of new odorant stimuli (metabolites). Enzymes, such as cytochrome P450 and glutathione transferases (GSTs), have been proposed to participate in odorant clearance in insects and mammals as odorant metabolizing enzymes. This study aims to explore the function of GSTs in human olfaction. Using immunohistochemical methods, GSTs were found to be localized in human tissues surrounding the olfactory epithelium. Then, the activity of 2 members of the GST family toward odorants was measured using heterologously expressed enzymes. The interactions/reactions with odorants were further characterized using a combination of enzymatic techniques. Furthermore, the structure of the complex between human GSTA1 and the glutathione conjugate of an odorant was determined by X-ray crystallography. Our results strongly suggest the role of human GSTs in the modulation of odorant availability to ORs in the peripheral olfactory process.
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Affiliation(s)
- Mathieu Schwartz
- Université de Bourgogne-Franche Comté, CNRS, INRA, Centre des Sciences du Goût et de l'Alimentation, Dijon, France
| | - Franck Menetrier
- Université de Bourgogne-Franche Comté, CNRS, INRA, Centre des Sciences du Goût et de l'Alimentation, Dijon, France
| | - Jean-Marie Heydel
- Université de Bourgogne-Franche Comté, CNRS, INRA, Centre des Sciences du Goût et de l'Alimentation, Dijon, France
| | - Evelyne Chavanne
- Université de Bourgogne-Franche Comté, CNRS, INRA, Centre des Sciences du Goût et de l'Alimentation, Dijon, France
| | - Philippe Faure
- Université de Bourgogne-Franche Comté, CNRS, INRA, Centre des Sciences du Goût et de l'Alimentation, Dijon, France
| | - Marc Labrousse
- Laboratoire d'Anatomie, UFR Médecine de Reims, Université de Reims Champagne Ardenne, Reims, France
| | - Frédéric Lirussi
- Université de Bourgogne-Franche Comté, INSERM U1231, University Hospital of Dijon, Dijon, France
| | - Francis Canon
- Université de Bourgogne-Franche Comté, CNRS, INRA, Centre des Sciences du Goût et de l'Alimentation, Dijon, France
| | - Bengt Mannervik
- Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden
| | - Loïc Briand
- Université de Bourgogne-Franche Comté, CNRS, INRA, Centre des Sciences du Goût et de l'Alimentation, Dijon, France
| | - Fabrice Neiers
- Université de Bourgogne-Franche Comté, CNRS, INRA, Centre des Sciences du Goût et de l'Alimentation, Dijon, France
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15
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Bryche B, Baly C, Meunier N. Modulation of olfactory signal detection in the olfactory epithelium: focus on the internal and external environment, and the emerging role of the immune system. Cell Tissue Res 2021; 384:589-605. [PMID: 33961125 PMCID: PMC8102665 DOI: 10.1007/s00441-021-03467-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 04/26/2021] [Indexed: 12/18/2022]
Abstract
Detection and discrimination of odorants by the olfactory system plays a pivotal role in animal survival. Olfactory-based behaviors must be adapted to an ever-changing environment. Part of these adaptations includes changes of odorant detection by olfactory sensory neurons localized in the olfactory epithelium. It is now well established that internal signals such as hormones, neurotransmitters, or paracrine signals directly affect the electric activity of olfactory neurons. Furthermore, recent data have shown that activity-dependent survival of olfactory neurons is important in the olfactory epithelium. Finally, as olfactory neurons are directly exposed to environmental toxicants and pathogens, the olfactory epithelium also interacts closely with the immune system leading to neuroimmune modulations. Here, we review how detection of odorants can be modulated in the vertebrate olfactory epithelium. We choose to focus on three cellular types of the olfactory epithelium (the olfactory sensory neuron, the sustentacular and microvillar cells) to present the diversity of modulation of the detection of odorant in the olfactory epithelium. We also present some of the growing literature on the importance of immune cells in the functioning of the olfactory epithelium, although their impact on odorant detection is only just beginning to be unravelled.
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Affiliation(s)
- Bertrand Bryche
- Université Paris-Saclay, INRAE, UVSQ, 78350, Jouy-en-Josas, VIM, France
| | - Christine Baly
- Université Paris Saclay, INRAE, UVSQ, BREED, 78350, Jouy-en-Josas, France
| | - Nicolas Meunier
- Université Paris-Saclay, INRAE, UVSQ, 78350, Jouy-en-Josas, VIM, France.
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16
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Neiers F, Jarriault D, Menetrier F, Faure P, Briand L, Heydel JM. The odorant metabolizing enzyme UGT2A1: Immunolocalization and impact of the modulation of its activity on the olfactory response. PLoS One 2021; 16:e0249029. [PMID: 33765098 PMCID: PMC7993815 DOI: 10.1371/journal.pone.0249029] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 03/09/2021] [Indexed: 02/06/2023] Open
Abstract
Odorant metabolizing enzymes (OMEs) are expressed in the olfactory epithelium (OE) where they play a significant role in the peripheral olfactory process by catalyzing the fast biotransformation of odorants leading either to their elimination or to the synthesis of new odorant stimuli. The large family of OMEs gathers different classes which interact with a myriad of odorants alike and complementary to olfactory receptors. Thus, it is necessary to increase our knowledge on OMEs to better understand their function in the physiological process of olfaction. This study focused on a major olfactory UDP-glucuronosyltransferase (UGT): UGT2A1. Immunohistochemistry and immunogold electronic microscopy allowed to localize its expression in the apical part of the sustentacular cells and originally at the plasma membrane of the olfactory cilia of the olfactory sensory neurons, both locations in close vicinity with olfactory receptors. Moreover, using electroolfactogram, we showed that a treatment of the OE with beta-glucuronidase, an enzyme which counterbalance the UGTs activity, increased the response to eugenol which is a strong odorant UGT substrate. Altogether, the results supported the function of the olfactory UGTs in the vertebrate olfactory perireceptor process.
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Affiliation(s)
- Fabrice Neiers
- Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - David Jarriault
- Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Franck Menetrier
- Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Philippe Faure
- Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Loïc Briand
- Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
| | - Jean-Marie Heydel
- Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon, France
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17
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Salthammer T, Monegel F, Schulz N, Uhde E, Grimme S, Seibert J, Hohm U, Palm W. Sensory Perception of Non-Deuterated and Deuterated Organic Compounds. Chemistry 2021; 27:1046-1056. [PMID: 33058253 PMCID: PMC7839723 DOI: 10.1002/chem.202003754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/10/2020] [Indexed: 11/24/2022]
Abstract
The chemical background of olfactory perception has been subject of intensive research, but no available model can fully explain the sense of smell. There are also inconsistent results on the role of the isotopology of molecules. In experiments with human subjects it was found that the isotope effect is weak with acetone and D6 -acetone. In contrast, clear differences were observed in the perception of octanoic acid and D15 -octanoic acid. Furthermore, a trained sniffer dog was initially able to distinguish between these isotopologues of octanoic acid. In chromatographic measurements, the respective deuterated molecule showed weaker interaction with a non-polar liquid phase. Quantum chemical calculations give evidence that deuterated octanoic acid binds more strongly to a model receptor than non-deuterated. In contrast, the binding of the non-deuterated molecule is stronger with acetone. The isotope effect is calculated in the framework of statistical mechanics. It results from a complicated interplay between various thermostatistical contributions to the non-covalent free binding energies and it turns out to be very molecule-specific. The vibrational terms including non-classical zero-point energies play about the same role as rotational/translational contributions and are larger than bond length effects for the differential isotope perception of odor for which general rules cannot be derived.
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Affiliation(s)
- Tunga Salthammer
- Department of Material Analysis and Indoor ChemistryFraunhofer WKI38108BraunschweigGermany
| | - Friederike Monegel
- Department of Material Analysis and Indoor ChemistryFraunhofer WKI38108BraunschweigGermany
| | - Nicole Schulz
- Department of Material Analysis and Indoor ChemistryFraunhofer WKI38108BraunschweigGermany
| | - Erik Uhde
- Department of Material Analysis and Indoor ChemistryFraunhofer WKI38108BraunschweigGermany
| | - Stefan Grimme
- Mulliken Center for Theoretical ChemistryInstitute for Physical and Theoretical ChemistryUniversity of Bonn53115BonnGermany
| | - Jakob Seibert
- Mulliken Center for Theoretical ChemistryInstitute for Physical and Theoretical ChemistryUniversity of Bonn53115BonnGermany
| | - Uwe Hohm
- Institute of Physical and Theoretical ChemistryUniversity of Braunschweig—Institute of Technology38106BraunschweigGermany
| | - Wolf‐Ulrich Palm
- Institute of Sustainable and Environmental ChemistryLeuphana University Lüneburg21335LüneburgGermany
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18
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Soler ZM, Schlosser RJ, Mulligan JK, Smith TL, Mace JC, Ramakrishan VR, Norris-Caneda K, Bethard JR, Ball LE. Olfactory cleft mucus proteome in chronic rhinosinusitis: a case-control pilot study. Int Forum Allergy Rhinol 2020; 11:1162-1176. [PMID: 33275311 DOI: 10.1002/alr.22743] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Mechanisms of smell loss in chronic rhinosinusitis (CRS) are still unclear and likely multifactorial. Little attention has been given to olfactory cleft (OC) mucus proteins involved in odorant binding and metabolizing enzymes and their potential role in smell loss. METHODS Mucus from the OC was sampled from patients with CRS (n = 20) and controls (n = 10). Liquid chromatography and mass spectrometry were performed, followed by data processing so that protein groups could be identified, quantified, and compared. Hierarchical clustering and bioinformatic analysis were performed on significantly different proteins to explore for enrichment in known biologic pathways. RESULTS A total of 2514 proteins were found in OC mucus from all 30 subjects. Significant differences in protein abundance were found between CRS and controls, including both CRSsNP (n = 351 proteins; log2 fold change range: -3.88 to 6.71) and CRSwNP (n = 298 proteins; log2 fold change range: -4.00 to -6.13). Significant differences were found between patients with normosmia and those with dysosmia (n = 183; log2 fold change range: -3.62 to -2.16) and across groups of interest for a number of odorant binding proteins and metabolizing enzymes. CONCLUSION OC mucous in CRS displays a rich and abundant array of proteins, many of which have been implicated in odorant transport and metabolization in animal studies. Significant differences in the olfactory mucus proteome were seen between CRS subtypes and controls, as well as between those with normal and abnormal olfaction. Further study should confirm these findings and explore the role individual proteins play in odorant transport and metabolization. ©2020 ARSAAOA, LLC.
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Affiliation(s)
- Zachary M Soler
- Division of Rhinology and Sinus Surgery, Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, SC
| | - Rodney J Schlosser
- Division of Rhinology and Sinus Surgery, Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, SC.,Department of Surgery, Ralph H. Johnson VA Medical Center, Charleston, SC
| | - Jennifer K Mulligan
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, SC
| | - Timothy L Smith
- Division of Rhinology and Sinus/Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, Oregon Health & Science University, Portland, OR
| | - Jess C Mace
- Division of Rhinology and Sinus/Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, Oregon Health & Science University, Portland, OR
| | - Vijay R Ramakrishan
- Department of Otolaryngology, Head and Neck Surgery, University of Colorado-Anschutz Medical Campus, Aurora, CO
| | - Kim Norris-Caneda
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC
| | - Jennifer R Bethard
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC
| | - Lauren E Ball
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC
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19
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Ijichi C, Wakabayashi H, Sugiyama S, Ihara Y, Nogi Y, Nagashima A, Ihara S, Niimura Y, Shimizu Y, Kondo K, Touhara K. Metabolism of Odorant Molecules in Human Nasal/Oral Cavity Affects the Odorant Perception. Chem Senses 2020; 44:465-481. [PMID: 31254383 DOI: 10.1093/chemse/bjz041] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In this study, we examined the mode of metabolism of food odorant molecules in the human nasal/oral cavity in vitro and in vivo. We selected 4 odorants, 2-furfurylthiol (2-FT), hexanal, benzyl acetate, and methyl raspberry ketone, which are potentially important for designing food flavors. In vitro metabolic assays of odorants with saliva/nasal mucus analyzed by gas chromatography mass spectrometry revealed that human saliva and nasal mucus exhibit the following 3 enzymatic activities: (i) methylation of 2-FT into furfuryl methylsulfide (FMS); (ii) reduction of hexanal into hexanol; and (iii) hydrolysis of benzyl acetate into benzyl alcohol. However, (iv) demethylation of methyl raspberry ketone was not observed. Real-time in vivo analysis using proton transfer reaction-mass spectrometry demonstrated that the application of 2-FT and hexanal through 3 different pathways via the nostril or through the mouth generated the metabolites FMS and hexanol within a few seconds. The concentration of FMS and hexanol in the exhaled air was above the perception threshold. A cross-adaptation study based on the activation pattern of human odorant receptors suggested that this metabolism affects odor perception. These results suggest that some odorants in food are metabolized in the human nasal mucus/saliva, and the resulting metabolites are perceived as part of the odor quality of the substrates. Our results help improve the understanding of the mechanism of food odor perception and may enable improved design and development of foods in relation to odor.
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Affiliation(s)
- Chiori Ijichi
- Chemosensory Research Group, Technology Development Center, Institute of Food Science and Technologies, Food Products Division, Ajinomoto Co., Inc., Kawasaki, Japan
| | - Hidehiko Wakabayashi
- Taste & Flavor Technology Group, Technology Development Center, Institute of Food Sciences and Technologies, Food Products Division, Ajinomoto Co., Inc., Kawasaki, Japan
| | - Shingo Sugiyama
- Taste & Flavor Technology Group, Technology Development Center, Institute of Food Sciences and Technologies, Food Products Division, Ajinomoto Co., Inc., Kawasaki, Japan
| | - Yusuke Ihara
- Chemosensory Research Group, Technology Development Center, Institute of Food Science and Technologies, Food Products Division, Ajinomoto Co., Inc., Kawasaki, Japan
| | - Yasuko Nogi
- Chemosensory Research Group, Technology Development Center, Institute of Food Science and Technologies, Food Products Division, Ajinomoto Co., Inc., Kawasaki, Japan
| | - Ayumi Nagashima
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.,ERATO Touhara Chemosensory Signal Project, JST, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Sayoko Ihara
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.,ERATO Touhara Chemosensory Signal Project, JST, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Yoshihito Niimura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.,ERATO Touhara Chemosensory Signal Project, JST, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Yuya Shimizu
- Department of Otorhinolaryngology-Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Kenji Kondo
- Department of Otorhinolaryngology-Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Kazushige Touhara
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.,ERATO Touhara Chemosensory Signal Project, JST, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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20
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Micarelli A, Cormano A, Caccamo D, Alessandrini M. Olfactory-Related Quality of Life in Multiple Chemical Sensitivity: A Genetic-Acquired Factors Model. Int J Mol Sci 2019; 21:ijms21010156. [PMID: 31881664 PMCID: PMC6981591 DOI: 10.3390/ijms21010156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/21/2019] [Accepted: 12/24/2019] [Indexed: 12/19/2022] Open
Abstract
Genetic polymorphisms as well as environmental exposures to chemical compounds, iatrogenic, psychological, and physical trauma may play a pathophysiological role in multiple chemical sensitivity (MCS) olfactory complaints, given that xenobiotic metabolism is influenced by sequence variations in genes of metabolizing enzymes. Thus, the aim of the present study was to depict-by means of multiple regression analysis-how different genetic conditions, grouped according to their function as well as clinical background and environmental exposure may interfere with those olfactory complaints referred by MCS patients. Therefore, MCS patients after gene polymorphism sequencing, the olfactory-related quality of life score-calculated by means of the Questionnaire of Olfactory Disorder in forty-six MCS patients-have been found to significantly rely on the phase I and II enzymes score and exposure to previous compounds and surgical treatments. The present work-implementing for the first time a genetic-acquired factors model on a regression analysis-further reinforces those theories, positing MCS as a complex, multifactorial, disease in which the genetic risk related to phase I and II enzymes involved in xenobiotic detoxification, olfactory, and neurodegenerative diseases play a necessary, but probably not sufficient role, along the pathophysiological route of the disease.
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Affiliation(s)
- Alessandro Micarelli
- Institute of Mountain Emergency Medicine, EURAC Research, I-39100 Bolzano, Italy
- ITER Center for Balance and Rehabilitation Research (ICBRR), 02032 Rome, Italy
- Correspondence:
| | | | - Daniela Caccamo
- Department of Biomedical Sciences, Dental Sciences and Morpho-functional Imaging, Polyclinic Hospital University, 98124 Messina, Italy;
| | - Marco Alessandrini
- Department of Clinical Sciences and Translational Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy;
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21
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Heydel JM, Menetrier F, Belloir C, Canon F, Faure P, Lirussi F, Chavanne E, Saliou JM, Artur Y, Canivenc-Lavier MC, Briand L, Neiers F. Characterization of rat glutathione transferases in olfactory epithelium and mucus. PLoS One 2019; 14:e0220259. [PMID: 31339957 PMCID: PMC6656353 DOI: 10.1371/journal.pone.0220259] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/11/2019] [Indexed: 12/15/2022] Open
Abstract
The olfactory epithelium is continuously exposed to exogenous chemicals, including odorants. During the past decade, the enzymes surrounding the olfactory receptors have been shown to make an important contribution to the process of olfaction. Mammalian xenobiotic metabolizing enzymes, such as cytochrome P450, esterases and glutathione transferases (GSTs), have been shown to participate in odorant clearance from the olfactory receptor environment, consequently contributing to the maintenance of sensitivity toward odorants. GSTs have previously been shown to be involved in numerous physiological processes, including detoxification, steroid hormone biosynthesis, and amino acid catabolism. These enzymes ensure either the capture or the glutathione conjugation of a large number of ligands. Using a multi-technique approach (proteomic, immunocytochemistry and activity assays), our results indicate that GSTs play an important role in the rat olfactory process. First, proteomic analysis demonstrated the presence of different putative odorant metabolizing enzymes, including different GSTs, in the rat nasal mucus. Second, GST expression was investigated in situ in rat olfactory tissues using immunohistochemical methods. Third, the activity of the main GST (GSTM2) odorant was studied with in vitro experiments. Recombinant GSTM2 was used to screen a set of odorants and characterize the nature of its interaction with the odorants. Our results support a significant role of GSTs in the modulation of odorant availability for receptors in the peripheral olfactory process.
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Affiliation(s)
- Jean-Marie Heydel
- University Bourgogne Franche-Comté, Faculty of Health Sciences, Dijon, France
- CSGA, Laboratory of taste and olfaction: from the molecule to behavior, University Bourgogne Franche-Comté, INRA, CNRS, France
- * E-mail: (FN); (J-MH)
| | - Franck Menetrier
- CSGA, Laboratory of taste and olfaction: from the molecule to behavior, University Bourgogne Franche-Comté, INRA, CNRS, France
| | - Christine Belloir
- CSGA, Laboratory of taste and olfaction: from the molecule to behavior, University Bourgogne Franche-Comté, INRA, CNRS, France
| | - Francis Canon
- CSGA, Laboratory of taste and olfaction: from the molecule to behavior, University Bourgogne Franche-Comté, INRA, CNRS, France
| | - Philippe Faure
- University Bourgogne Franche-Comté, Faculty of Health Sciences, Dijon, France
- CSGA, Laboratory of taste and olfaction: from the molecule to behavior, University Bourgogne Franche-Comté, INRA, CNRS, France
| | - Frederic Lirussi
- University Bourgogne Franche-Comté, Faculty of Health Sciences, Dijon, France
- Université de Bourgogne, Centre Hospitalier Universitaire de Dijon, INSERM, U1231, Lipides Nutrition Cancer, Équipe labellisée Ligue Nationale contre le Cancer, Dijon, France
| | - Evelyne Chavanne
- University Bourgogne Franche-Comté, Faculty of Health Sciences, Dijon, France
- CSGA, Laboratory of taste and olfaction: from the molecule to behavior, University Bourgogne Franche-Comté, INRA, CNRS, France
| | - Jean-Michel Saliou
- University of Lille, CNRS, INSERM, CHU Lille, Pasteur Institute of Lille, U1019-UMR8204-CIIL-Center for Infection and Immunity of Lille, Lille, France
| | - Yves Artur
- University Bourgogne Franche-Comté, Faculty of Health Sciences, Dijon, France
- CSGA, Laboratory of taste and olfaction: from the molecule to behavior, University Bourgogne Franche-Comté, INRA, CNRS, France
| | - Marie-Chantal Canivenc-Lavier
- CSGA, Laboratory of taste and olfaction: from the molecule to behavior, University Bourgogne Franche-Comté, INRA, CNRS, France
| | - Loïc Briand
- CSGA, Laboratory of taste and olfaction: from the molecule to behavior, University Bourgogne Franche-Comté, INRA, CNRS, France
| | - Fabrice Neiers
- University Bourgogne Franche-Comté, Faculty of Health Sciences, Dijon, France
- CSGA, Laboratory of taste and olfaction: from the molecule to behavior, University Bourgogne Franche-Comté, INRA, CNRS, France
- * E-mail: (FN); (J-MH)
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22
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Heydel JM, Faure P, Neiers F. Nasal odorant metabolism: enzymes, activity and function in olfaction. Drug Metab Rev 2019; 51:224-245. [DOI: 10.1080/03602532.2019.1632890] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jean-Marie Heydel
- Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, France
| | - Philippe Faure
- Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, France
| | - Fabrice Neiers
- Centre des Sciences du Goût et de l’Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, F-21000 Dijon, France
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