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Talagas M, Lebonvallet N, Leschiera R, Sinquin G, Elies P, Haftek M, Pennec JP, Ressnikoff D, La Padula V, Le Garrec R, L'herondelle K, Mignen O, Le Pottier L, Kerfant N, Reux A, Marcorelles P, Misery L. Keratinocytes Communicate with Sensory Neurons via Synaptic-like Contacts. Ann Neurol 2020; 88:1205-1219. [PMID: 32951274 DOI: 10.1002/ana.25912] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 09/11/2020] [Accepted: 09/11/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Pain, temperature, and itch are conventionally thought to be exclusively transduced by the intraepidermal nerve endings. Although recent studies have shown that epidermal keratinocytes also participate in sensory transduction, the mechanism underlying keratinocyte communication with intraepidermal nerve endings remains poorly understood. We sought to demonstrate the synaptic character of the contacts between keratinocytes and sensory neurons and their involvement in sensory communication between keratinocytes and sensory neurons. METHODS Contacts were explored by morphological, molecular, and functional approaches in cocultures of epidermal keratinocytes and sensory neurons. To interrogate whether structures observed in vitro were also present in the human epidermis, in situ correlative light electron microscopy was performed on human skin biopsies. RESULTS Epidermal keratinocytes dialogue with sensory neurons through en passant synaptic-like contacts. These contacts have the ultrastructural features and molecular hallmarks of chemical synaptic-like contacts: narrow intercellular cleft, keratinocyte synaptic vesicles expressing synaptophysin and synaptotagmin 1, and sensory information transmitted from keratinocytes to sensory neurons through SNARE-mediated (syntaxin1) vesicle release. INTERPRETATION By providing selective communication between keratinocytes and sensory neurons, synaptic-like contacts are the hubs of a 2-site receptor. The permanent epidermal turnover, implying a specific en passant structure and high plasticity, may have delayed their identification, thereby contributing to the long-held concept of nerve endings passing freely between keratinocytes. The discovery of keratinocyte-sensory neuron synaptic-like contacts may call for a reassessment of basic assumptions in cutaneous sensory perception and sheds new light on the pathophysiology of pain and itch as well as the physiology of touch. ANN NEUROL 2020;88:1205-1219.
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Affiliation(s)
- Matthieu Talagas
- Univ Brest, LIEN, Brest University, F-29200 Brest, France.,Department of Pathology, Brest University Hospital, Brest, France.,Univ Brest, Brest Institute of Health Agro Matter, Brest University, F-29200 Brest, France
| | - Nicolas Lebonvallet
- Univ Brest, LIEN, Brest University, F-29200 Brest, France.,Univ Brest, Brest Institute of Health Agro Matter, Brest University, F-29200 Brest, France
| | - Raphael Leschiera
- Univ Brest, LIEN, Brest University, F-29200 Brest, France.,Univ Brest, Brest Institute of Health Agro Matter, Brest University, F-29200 Brest, France
| | - Gerard Sinquin
- Univ Brest, Imagery and Microscopic Measures Facility, Brest University, F-29200 Brest, France
| | - Philippe Elies
- Univ Brest, Imagery and Microscopic Measures Facility, Brest University, F-29200 Brest, France
| | - Marek Haftek
- Laboratory of Tissue Biology and Therapeutic Engineering, University of Lyon 1, UMR 5305 CNRS-UCBL1, Lyon, France
| | - Jean-Pierre Pennec
- Univ Brest, Brest Institute of Health Agro Matter, Brest University, F-29200 Brest, France.,Univ Brest, Movement Sport and Health (EA1274), Brest University, F-29200 Brest, France
| | - Denis Ressnikoff
- East Lyon Center of Quantitative Imagery, University of Lyon 1, INSERM US 7-CNRS UMS 3453, Lyon, France
| | - Veronica La Padula
- Technological Center of Microstructures, University of Lyon 1, Lyon, France
| | - Raphaele Le Garrec
- Univ Brest, LIEN, Brest University, F-29200 Brest, France.,Univ Brest, Brest Institute of Health Agro Matter, Brest University, F-29200 Brest, France
| | - Killian L'herondelle
- Univ Brest, LIEN, Brest University, F-29200 Brest, France.,Univ Brest, Brest Institute of Health Agro Matter, Brest University, F-29200 Brest, France
| | - Olivier Mignen
- Univ Brest, Brest Institute of Health Agro Matter, Brest University, F-29200 Brest, France.,Univ Brest, INSERM, UMR 1227, Brest University, F-29200 Brest, France
| | - Laetitia Le Pottier
- Univ Brest, Brest Institute of Health Agro Matter, Brest University, F-29200 Brest, France.,Univ Brest, INSERM, UMR 1227, Brest University, F-29200 Brest, France
| | - Nathalie Kerfant
- Department of Plastic, Reconstructive, and Esthetic Surgery, Brest University Hospital, Brest, France
| | - Alexia Reux
- Univ Brest, LIEN, Brest University, F-29200 Brest, France
| | - Pascale Marcorelles
- Univ Brest, LIEN, Brest University, F-29200 Brest, France.,Department of Pathology, Brest University Hospital, Brest, France.,Univ Brest, Brest Institute of Health Agro Matter, Brest University, F-29200 Brest, France
| | - Laurent Misery
- Univ Brest, LIEN, Brest University, F-29200 Brest, France.,Univ Brest, Brest Institute of Health Agro Matter, Brest University, F-29200 Brest, France.,Department of Dermatology, Brest University Hospital, Brest, France
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2
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Guschinskaya N, Ressnikoff D, Arafah K, Voisin S, Bulet P, Uzest M, Rahbé Y. Insect Mouthpart Transcriptome Unveils Extension of Cuticular Protein Repertoire and Complex Organization. iScience 2020; 23:100828. [PMID: 32000126 PMCID: PMC7033635 DOI: 10.1016/j.isci.2020.100828] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 11/03/2019] [Accepted: 01/06/2020] [Indexed: 12/27/2022] Open
Abstract
Insects have developed intriguing cuticles with very specific structures and functions, including microstructures governing their interactions with transmitted microbes, such as in aphid mouthparts harboring virus receptors within such microstructures. Here, we provide the first transcriptome analysis of an insect mouthpart cuticle (“retort organs” [ROs], the stylets' precursors). This analysis defined stylets as a complex composite material. The retort transcriptome also allowed us to propose an algorithmic definition of a new cuticular protein (CP) family with low complexity and biased amino acid composition. Finally, we identified a differentially expressed gene encoding a pyrokinin (PK) neuropeptide precursor and characterizing the mandibular glands. Injection of three predicted synthetic peptides PK1/2/3 into aphids prior to ecdysis caused a molt-specific phenotype with altered head formation. Our study provides the most complete description to date of the potential protein composition of aphid stylets, which should improve the understanding of the transmission of stylet-borne viruses. First transcriptome of aphid retort glands and stylet cuticular protein composition A pyrokinin transcript is mandibular gland specific at the onset of adult moult Stylet cuticle is of higher protein complexity than other insect cuticles A new class of low-complexity cuticular proteins is predicted
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Affiliation(s)
- Natalia Guschinskaya
- Insa de Lyon, UMR5240 MAP CNRS-UCBL, 69622 Villeurbanne, France; Université de Lyon
| | - Denis Ressnikoff
- CIQLE, Centre d'imagerie Quantitative Lyon-Est, UCB Lyon 1, Lyon, France; Université de Lyon
| | | | | | - Philippe Bulet
- Platform BioPark Archamps, Archamps, France; CR University of Grenoble Alpes, Institute for Advanced Biosciences, Inserm U1209, CNRS UMR 5309, La Tronche, France
| | - Marilyne Uzest
- BGPI, Univ Montpellier, INRA, CIRAD, Montpellier SupAgro, Montpellier, France
| | - Yvan Rahbé
- Insa de Lyon, UMR5240 MAP CNRS-UCBL, 69622 Villeurbanne, France; BGPI, Univ Montpellier, INRA, CIRAD, Montpellier SupAgro, Montpellier, France; Université de Lyon.
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3
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Terrier O, Carron C, De Chassey B, Dubois J, Traversier A, Julien T, Cartet G, Proust A, Hacot S, Ressnikoff D, Lotteau V, Lina B, Diaz JJ, Moules V, Rosa-Calatrava M. Nucleolin interacts with influenza A nucleoprotein and contributes to viral ribonucleoprotein complexes nuclear trafficking and efficient influenza viral replication. Sci Rep 2016; 6:29006. [PMID: 27373907 PMCID: PMC4931502 DOI: 10.1038/srep29006] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 06/09/2016] [Indexed: 01/18/2023] Open
Abstract
Influenza viruses replicate their single-stranded RNA genomes in the nucleus of infected cells and these replicated genomes (vRNPs) are then exported from the nucleus to the cytoplasm and plasma membrane before budding. To achieve this export, influenza viruses hijack the host cell export machinery. However, the complete mechanisms underlying this hijacking remain not fully understood. We have previously shown that influenza viruses induce a marked alteration of the nucleus during the time-course of infection and notably in the nucleolar compartment. In this study, we discovered that a major nucleolar component, called nucleolin, is required for an efficient export of vRNPs and viral replication. We have notably shown that nucleolin interacts with the viral nucleoprotein (NP) that mainly constitutes vRNPs. Our results suggest that this interaction could allow vRNPs to "catch" the host cell export machinery, a necessary step for viral replication.
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Affiliation(s)
- Olivier Terrier
- Virologie et Pathologie Humaine - Team VirPath - Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, Lyon, France
- CIRI, International Center for Infectiology Research, Inserm U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Coralie Carron
- Virologie et Pathologie Humaine - Team VirPath - Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, Lyon, France
- CIRI, International Center for Infectiology Research, Inserm U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Benoît De Chassey
- CIRI, International Center for Infectiology Research, Inserm U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Julia Dubois
- Virologie et Pathologie Humaine - Team VirPath - Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, Lyon, France
- CIRI, International Center for Infectiology Research, Inserm U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Aurélien Traversier
- Virologie et Pathologie Humaine - Team VirPath - Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, Lyon, France
- CIRI, International Center for Infectiology Research, Inserm U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Thomas Julien
- Virologie et Pathologie Humaine - Team VirPath - Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, Lyon, France
- CIRI, International Center for Infectiology Research, Inserm U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Lyon, France
- VirNext, Faculté de Médecine RTH Laennec, Université Lyon 1, Lyon, France
| | - Gaëlle Cartet
- Virologie et Pathologie Humaine - Team VirPath - Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, Lyon, France
- CIRI, International Center for Infectiology Research, Inserm U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Anaïs Proust
- Virologie et Pathologie Humaine - Team VirPath - Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, Lyon, France
- CIRI, International Center for Infectiology Research, Inserm U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Lyon, France
- VirNext, Faculté de Médecine RTH Laennec, Université Lyon 1, Lyon, France
| | - Sabine Hacot
- Centre de Recherche en Cancérologie de Lyon, UMR Inserm 1052 CNRS 5286, Centre Léon Bérard, Lyon, France and Université de Lyon, Lyon, France
| | - Denis Ressnikoff
- CIQLE, Centre d’imagerie quantitative Lyon-Est, Université Claude Bernard Lyon 1, Lyon, France
| | - Vincent Lotteau
- CIRI, International Center for Infectiology Research, Inserm U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Bruno Lina
- Virologie et Pathologie Humaine - Team VirPath - Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, Lyon, France
- CIRI, International Center for Infectiology Research, Inserm U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Lyon, France
- Hospices Civils de Lyon, Laboratory of Virology, Lyon, France
| | - Jean-Jacques Diaz
- Centre de Recherche en Cancérologie de Lyon, UMR Inserm 1052 CNRS 5286, Centre Léon Bérard, Lyon, France and Université de Lyon, Lyon, France
| | - Vincent Moules
- Virologie et Pathologie Humaine - Team VirPath - Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, Lyon, France
- CIRI, International Center for Infectiology Research, Inserm U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Lyon, France
- VirNext, Faculté de Médecine RTH Laennec, Université Lyon 1, Lyon, France
| | - Manuel Rosa-Calatrava
- Virologie et Pathologie Humaine - Team VirPath - Université Claude Bernard Lyon 1 - Hospices Civils de Lyon, Lyon, France
- CIRI, International Center for Infectiology Research, Inserm U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, Lyon, France
- VirNext, Faculté de Médecine RTH Laennec, Université Lyon 1, Lyon, France
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Balança B, Bapteste L, Lieutaud T, Ressnikoff D, Guy R, Bezin L, Marinesco S. Neuronal loss as evidenced by automated quantification of neuronal density following moderate and severe traumatic brain injury in rats. J Neurosci Res 2015; 94:39-49. [PMID: 26451689 DOI: 10.1002/jnr.23676] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 08/10/2015] [Accepted: 09/14/2015] [Indexed: 11/11/2022]
Abstract
Traumatic brain injury causes widespread neurological lesions that can be reproduced in animals with the lateral fluid percussion (LFP) model. The characterization of the pattern of neuronal death generated in this model remains unclear, involving both cortical and subcortical brain regions. Here, 7 days after moderate (3 atmospheres absolute [ATA]) or severe (3.8 ATA) LFP, we estimated neuronal loss by using immunohistochemistry together with a computer-assisted automated method for quantifying neuronal density in brain sections. Neuronal counts were performed ipsilateral to the impact, in the parietal cortex ventral to the site of percussion, in the temporal cortex, in the dorsal thalamus, and in the hippocampus. These results were compared with the counts observed at similar areas in sham animals. We found that neuronal density was severely decreased in the temporal cortex (-60%), in the dorsal thalamus (-63%), and in area CA3 of the hippocampus (-36%) of injured animals compared with controls but was not significantly modified in the cortices located immediately ventral to the impact. Total cellular density increased in brain structures displaying neuronal death, suggesting the presence of gliosis. The increase in the severity of LFP did not change the pattern of neuronal injury. This automated method simplified the study of neuronal loss following traumatic brain injury and allowed the identification of a pattern of neuronal loss that spreads from the dorsal thalamus to the temporal cortex, with the most severe lesions being in brain structures remote from the site of impact.
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Affiliation(s)
- Baptiste Balança
- INSERM U1028, CNRS UMR5292, Lyon Neuroscience Research Center, Team WAKING, Lyon, France.,Department of Anesthesiology and Intensive Care, P. Wertheimer Neurological Hospital, Hospices Civils de Lyon, Lyon, France.,University Claude Bernard Lyon 1, Lyon, France
| | - Lionel Bapteste
- Department of Anesthesiology and Intensive Care, P. Wertheimer Neurological Hospital, Hospices Civils de Lyon, Lyon, France.,University Claude Bernard Lyon 1, Lyon, France
| | - Thomas Lieutaud
- University Claude Bernard Lyon 1, Lyon, France.,INSERM U1028, CNRS UMR5292, Lyon Neuroscience Research Center, Team TIGER, Lyon, France
| | - Denis Ressnikoff
- University Claude Bernard Lyon 1, Lyon, France.,Centre d'Imagerie Quantitative Lyon Est, Lyon, France
| | - Rainui Guy
- INSERM U1028, CNRS UMR5292, Lyon Neuroscience Research Center, Team WAKING, Lyon, France.,University Claude Bernard Lyon 1, Lyon, France
| | - Laurent Bezin
- University Claude Bernard Lyon 1, Lyon, France.,INSERM U1028, CNRS UMR5292, Lyon Neuroscience Research Center, Team TIGER, Lyon, France
| | - Stéphane Marinesco
- INSERM U1028, CNRS UMR5292, Lyon Neuroscience Research Center, Team WAKING, Lyon, France.,University Claude Bernard Lyon 1, Lyon, France.,INSERM U1028, CNRS UMR5292, Lyon Neuroscience Research Center, AniRA-Neurochem Technological Platform, Lyon, France
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5
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Woeffler-Maucler C, Beghin A, Ressnikoff D, Bezin L, Marinesco S. Automated immunohistochemical method to quantify neuronal density in brain sections: application to neuronal loss after status epilepticus. J Neurosci Methods 2014; 225:32-41. [PMID: 24462622 DOI: 10.1016/j.jneumeth.2014.01.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 01/10/2014] [Accepted: 01/13/2014] [Indexed: 12/28/2022]
Abstract
BACKGROUND To study neurotoxic processes, it is necessary to quantify the number of neurons in a given brain structure and estimate neuronal loss. Neuronal densities can be estimated by immunohistochemical quantitation of a neuronal marker such as the protein NeuN. However, NeuN expression may vary, depending on certain pathophysiological conditions and bias such quantifications. NEW METHOD We have developed a simple automatic quantification of neuronal densities in brain sections stained with DAPI and antibody to NeuN. This method determines the number of DAPI-positive nuclei also positive for NeuN in at least two adjacent sections within a Z-stack of optical sections. RESULTS We tested this method in animals with induced status epilepticus (SE) a state of intractable persistent seizure that produces extensive neuronal injury. We found that SE significantly reduced neuronal density in the piriform cortex, the amygdala, the dorsal thalamus, the CA3 area of the hippocampus, the dentate gyrus and the hilus, but not in the somatosensory cortex or the CA1 area. SE resulted in increases in the total density of cellular nuclei within these brain structures, suggesting gliosis. COMPARISON WITH EXISTING METHODS This automated method was more accurate than simply estimating the overall NeuN fluorescence intensity in the brain section, and as accurate, but less time-consuming, than manual cell counts. CONCLUSION This method simplifies and accelerates the unbiased quantification of neuronal density. It can be easily applied to other models of brain injury and neurodegeneration, or used to screen the efficacy of neuroprotective treatments.
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Affiliation(s)
- Caroline Woeffler-Maucler
- Université de Lyon, Lyon, France; INSERM, Institut National de la Santé et de la Recherche Médicale, U1028, Lyon Neuroscience Research Center, Lyon, France; CNRS, Centre National de la Recherche Scientifique, UMR5292, Lyon Neuroscience Research Center, Lyon, France
| | - Anne Beghin
- Université de Lyon, Lyon, France; Centre Commun de Quantimétrie, Lyon F-69008, France
| | - Denis Ressnikoff
- Université de Lyon, Lyon, France; Centre Commun de Quantimétrie, Lyon F-69008, France
| | - Laurent Bezin
- Université de Lyon, Lyon, France; INSERM, Institut National de la Santé et de la Recherche Médicale, U1028, Lyon Neuroscience Research Center, Lyon, France; CNRS, Centre National de la Recherche Scientifique, UMR5292, Lyon Neuroscience Research Center, Lyon, France; IDÉE, Institut Des ÉpilepsiEs, Lyon, France
| | - Stéphane Marinesco
- Université de Lyon, Lyon, France; INSERM, Institut National de la Santé et de la Recherche Médicale, U1028, Lyon Neuroscience Research Center, Lyon, France; CNRS, Centre National de la Recherche Scientifique, UMR5292, Lyon Neuroscience Research Center, Lyon, France; Plate-forme technologique AniRA-Neurochem, Lyon F-69000, France.
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6
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Virgone-Carlotta A, Uhlrich J, Akram MN, Ressnikoff D, Chrétien F, Domenget C, Gherardi R, Despars G, Jurdic P, Honnorat J, Nataf S, Touret M. Mapping and kinetics of microglia/neuron cell-to-cell contacts in the 6-OHDA murine model of Parkinson's disease. Glia 2013; 61:1645-58. [DOI: 10.1002/glia.22546] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 05/23/2013] [Accepted: 05/28/2013] [Indexed: 11/05/2022]
Affiliation(s)
- Angélique Virgone-Carlotta
- INSERM U1028; CNRS UMR5292, Lyon Neurosciences Research Center, Neuro-oncology and Neuroinflammation team; Lyon; 69000; France
| | - Josselin Uhlrich
- INSERM U1028; CNRS UMR5292, Lyon Neurosciences Research Center, Neuro-oncology and Neuroinflammation team; Lyon; 69000; France
| | - Muhammad Numan Akram
- INSERM U1028; CNRS UMR5292, Lyon Neurosciences Research Center, Neuro-oncology and Neuroinflammation team; Lyon; 69000; France
| | | | - Fabrice Chrétien
- IMRB - Inserm U955, Equipe n°10 “Interactions cellulaires dans le système neuromusculaire”; Faculté de Médecine de Créteil - Université Paris 12; 8 rue du général Sarrail; 94011 Créteil; France
| | - Chantal Domenget
- Institut de Génomique Fonctionnelle, Ecole Normale Supérieure de Lyon; 46 Allée d'Italie; 69364; Lyon, France
| | - Romain Gherardi
- IMRB - Inserm U955, Equipe n°10 “Interactions cellulaires dans le système neuromusculaire”; Faculté de Médecine de Créteil - Université Paris 12; 8 rue du général Sarrail; 94011 Créteil; France
| | - Geneviève Despars
- Institut de Génomique Fonctionnelle, Ecole Normale Supérieure de Lyon; 46 Allée d'Italie; 69364; Lyon, France
| | - Pierre Jurdic
- Institut de Génomique Fonctionnelle, Ecole Normale Supérieure de Lyon; 46 Allée d'Italie; 69364; Lyon, France
| | - Jérôme Honnorat
- INSERM U1028; CNRS UMR5292, Lyon Neurosciences Research Center, Neuro-oncology and Neuroinflammation team; Lyon; 69000; France
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Delavenne X, Magnin M, Basset T, Piot M, Mallouk N, Ressnikoff D, Garcin A, Laporte S, Garnier P, Mismetti P. Investigation of drug-drug interactions between clopidogrel and fluoxetine. Fundam Clin Pharmacol 2013; 27:683-9. [PMID: 23413998 DOI: 10.1111/fcp.12021] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 01/12/2013] [Accepted: 01/22/2013] [Indexed: 11/28/2022]
Abstract
Drug-drug interactions may contribute to the variability of the response of clopidogrel. Several hypotheses have been proposed concerning the potential modification of clopidogrel pharmacokinetics and pharmacodynamics by fluoxetine. This open-label crossover study assessed the effect of fluoxetine on the pharmacological activity of clopidogrel in healthy volunteers. Eight healthy male volunteers received a single 600-mg loading dose of clopidogrel followed by 20 mg of fluoxetine on 4 days and then 20 mg of fluoxetine plus 600 mg of clopidogrel on the fifth day. Eleven blood samples were withdrawn after clopidogrel administration to determine plasma concentrations of clopidogrel active metabolite (CAM) and platelet function. Platelet aggregation was measured by light transmittance aggregometry (LTA) and platelet reactivity index by flow cytometric vasodilator-stimulated phosphoprotein (VASP) analysis. The areas under the curve and maximum plasma concentrations of CAM were, respectively, 20.6 and 25.3% lower after co-administration of fluoxetine compared with administration of clopidogrel alone. The percentage maximum platelet aggregation values in the presence of 5 μM and 10 μM adenosine diphosphate, measured by LTA, were, respectively, 13.9 and 22.4% lower after fluoxetine co-administration. The platelet reactivity index measured by the flow cytometric VASP method was 36.8% lower when clopidogrel was administered in conjunction with fluoxetine.
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Affiliation(s)
- Xavier Delavenne
- Laboratoire de Pharmacologie Toxicologie, CHU Saint-Etienne, F-42055, Saint-Etienne, France; Université de Lyon, F-42023, Saint-Etienne, France; Groupe de Recherche sur la Thrombose, EA3065, Université de Saint-Etienne, Jean Monnet, F-42023, Saint-Etienne, France
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Thivichon-Prince B, Couble M, Giamarchi A, Delmas P, Franco B, Romio L, Struys T, Lambrichts I, Ressnikoff D, Magloire H, Bleicher F. Primary Cilia of Odontoblasts: Possible Role in Molar Morphogenesis. J Dent Res 2009; 88:910-5. [DOI: 10.1177/0022034509345822] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
A primary cilium, a sensory organelle present in almost every vertebrate cell, is regularly described in odontoblasts, projecting from the surfaces of the cells. Based on the hypothesis that the primary cilium is crucial both for dentin formation and possibly in tooth pain transmission, we have investigated the expression and localization of the main cilium components and involvement of the OFD1 gene in tooth morphogenesis. Odontoblasts in vitro express tubulin, inversin, rootletin, OFD1, BBS4, BBS6, ALMS1, KIF3A, PC1, and PC2. In vivo, cilia are aligned parallel to the dentin walls, with the top part oriented toward the pulp core. Close relationships between cilium and nerve fibers are evidenced. Calcium channels are concentrated in the vicinity of the basal body. Analysis of these data suggests a putative role of cilia in sensing the microenvironment, probably related to dentin secretion. This hypothesis is enhanced by the huge defects observed on molars from Ofd1 knockout mice, showing undifferentiated dentin-forming cells.
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Affiliation(s)
- B. Thivichon-Prince
- University of Lyon, Villeurbanne, F-69100, France
- University of Lyon 1, Faculté d’Odontologie, Rue Guillaume Paradin, F- 69372 Lyon Cedex 08, France
- CNRS, UMR 5242, Lyon, F-69007, France
- IGFL, Lyon, F-69007, France
- Université de la Méditerranée, CRN2M, CNRS UMR 6231, Bd P. Dramand, Marseille, F-13916, France
| | - M.L. Couble
- University of Lyon, Villeurbanne, F-69100, France
- University of Lyon 1, Faculté d’Odontologie, Rue Guillaume Paradin, F- 69372 Lyon Cedex 08, France
- CNRS, UMR 5242, Lyon, F-69007, France
- IGFL, Lyon, F-69007, France
- Université de la Méditerranée, CRN2M, CNRS UMR 6231, Bd P. Dramand, Marseille, F-13916, France
| | - A. Giamarchi
- University of Lyon, Villeurbanne, F-69100, France
- University of Lyon 1, Faculté d’Odontologie, Rue Guillaume Paradin, F- 69372 Lyon Cedex 08, France
- CNRS, UMR 5242, Lyon, F-69007, France
- IGFL, Lyon, F-69007, France
- Université de la Méditerranée, CRN2M, CNRS UMR 6231, Bd P. Dramand, Marseille, F-13916, France
| | - P. Delmas
- University of Lyon, Villeurbanne, F-69100, France
- University of Lyon 1, Faculté d’Odontologie, Rue Guillaume Paradin, F- 69372 Lyon Cedex 08, France
- CNRS, UMR 5242, Lyon, F-69007, France
- IGFL, Lyon, F-69007, France
- Université de la Méditerranée, CRN2M, CNRS UMR 6231, Bd P. Dramand, Marseille, F-13916, France
| | - B. Franco
- University of Lyon, Villeurbanne, F-69100, France
- University of Lyon 1, Faculté d’Odontologie, Rue Guillaume Paradin, F- 69372 Lyon Cedex 08, France
- CNRS, UMR 5242, Lyon, F-69007, France
- IGFL, Lyon, F-69007, France
- Université de la Méditerranée, CRN2M, CNRS UMR 6231, Bd P. Dramand, Marseille, F-13916, France
| | - L. Romio
- University of Lyon, Villeurbanne, F-69100, France
- University of Lyon 1, Faculté d’Odontologie, Rue Guillaume Paradin, F- 69372 Lyon Cedex 08, France
- CNRS, UMR 5242, Lyon, F-69007, France
- IGFL, Lyon, F-69007, France
- Université de la Méditerranée, CRN2M, CNRS UMR 6231, Bd P. Dramand, Marseille, F-13916, France
| | - T. Struys
- University of Lyon, Villeurbanne, F-69100, France
- University of Lyon 1, Faculté d’Odontologie, Rue Guillaume Paradin, F- 69372 Lyon Cedex 08, France
- CNRS, UMR 5242, Lyon, F-69007, France
- IGFL, Lyon, F-69007, France
- Université de la Méditerranée, CRN2M, CNRS UMR 6231, Bd P. Dramand, Marseille, F-13916, France
| | - I. Lambrichts
- University of Lyon, Villeurbanne, F-69100, France
- University of Lyon 1, Faculté d’Odontologie, Rue Guillaume Paradin, F- 69372 Lyon Cedex 08, France
- CNRS, UMR 5242, Lyon, F-69007, France
- IGFL, Lyon, F-69007, France
- Université de la Méditerranée, CRN2M, CNRS UMR 6231, Bd P. Dramand, Marseille, F-13916, France
| | - D. Ressnikoff
- University of Lyon, Villeurbanne, F-69100, France
- University of Lyon 1, Faculté d’Odontologie, Rue Guillaume Paradin, F- 69372 Lyon Cedex 08, France
- CNRS, UMR 5242, Lyon, F-69007, France
- IGFL, Lyon, F-69007, France
- Université de la Méditerranée, CRN2M, CNRS UMR 6231, Bd P. Dramand, Marseille, F-13916, France
| | - H. Magloire
- University of Lyon, Villeurbanne, F-69100, France
- University of Lyon 1, Faculté d’Odontologie, Rue Guillaume Paradin, F- 69372 Lyon Cedex 08, France
- CNRS, UMR 5242, Lyon, F-69007, France
- IGFL, Lyon, F-69007, France
- Université de la Méditerranée, CRN2M, CNRS UMR 6231, Bd P. Dramand, Marseille, F-13916, France
| | - F. Bleicher
- University of Lyon, Villeurbanne, F-69100, France
- University of Lyon 1, Faculté d’Odontologie, Rue Guillaume Paradin, F- 69372 Lyon Cedex 08, France
- CNRS, UMR 5242, Lyon, F-69007, France
- IGFL, Lyon, F-69007, France
- Université de la Méditerranée, CRN2M, CNRS UMR 6231, Bd P. Dramand, Marseille, F-13916, France
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9
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Chhin B, Negre D, Merrot O, Pham J, Tourneur Y, Ressnikoff D, Jaspers M, Jorissen M, Cosset FL, Bouvagnet P. Ciliary beating recovery in deficient human airway epithelial cells after lentivirus ex vivo gene therapy. PLoS Genet 2009; 5:e1000422. [PMID: 19300481 PMCID: PMC2650261 DOI: 10.1371/journal.pgen.1000422] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2008] [Accepted: 02/13/2009] [Indexed: 12/21/2022] Open
Abstract
Primary Ciliary Dyskinesia is a heterogeneous genetic disease that is characterized by cilia dysfunction of the epithelial cells lining the respiratory tracts, resulting in recurrent respiratory tract infections. Despite lifelong physiological therapy and antibiotics, the lungs of affected patients are progressively destroyed, leading to respiratory insufficiency. Recessive mutations in Dynein Axonemal Intermediate chain type 1 (DNAI1) gene have been described in 10% of cases of Primary Ciliary Dyskinesia. Our goal was to restore normal ciliary beating in DNAI1–deficient human airway epithelial cells. A lentiviral vector based on Simian Immunodeficiency Virus pseudotyped with Vesicular Stomatitis Virus Glycoprotein was used to transduce cultured human airway epithelial cells with a cDNA of DNAI1 driven by the Elongation Factor 1 promoter. Transcription and translation of the transduced gene were tested by RT–PCR and western blot, respectively. Human airway epithelial cells that were DNAI1–deficient due to compound heterozygous mutations, and consequently had immotile cilia and no outer dynein arm, were transduced by the lentivirus. Cilia beating was recorded and electron microscopy of the cilia was performed. Transcription and translation of the transduced DNAI1 gene were detected in human cells treated with the lentivirus. In addition, immotile cilia recovered a normal beat and outer dynein arms reappeared. We demonstrated that it is possible to obtain a normalization of ciliary beat frequency of deficient human airway epithelial cells by using a lentivirus to transduce cells with the therapeutic gene. This preliminary step constitutes a conceptual proof that is indispensable in the perspective of Primary Ciliary Dyskinesia's in vivo gene therapy. This is the first time that recovery of cilia beating is demonstrated in this disease. This manuscript reports on a successful gene therapy attempt on human airway epithelial cells of a patient suffering from Primary Ciliary Dyskinesia. In this autosomal recessive disease, cilia of the epithelial cells that border the upper and lower respiratory tracks are not functioning. As a result, patients suffer from recurrent airway infections leading progressively to respiratory insufficiency. There is no treatment as of today that could restore normal ciliary beating. In this report, we showed that it is feasible to transfer a therapeutic gene to human airway epithelial cells with a lentivirus. This transferred gene is transcribed and expressed. Moreover, defective cells that had immotile cilia due to compound heterozygous mutations in the DNAI1 gene recovered ciliary beating after treatment with a lentivirus containing a normal DNAI1 gene. This is the first report on gene therapy in Primary Ciliary Dyskinesia. Since lentivirus is able to insert therapeutic genes into the cell genome, this result may have impact on in vivo gene therapy in this disease and in diseases related to human epithelial airway cells such as cystic fibrosis.
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Affiliation(s)
| | - Didier Negre
- Université de Lyon (UCB-Lyon1), IFR128, Lyon, France
- INSERM, U758, Lyon, France
- Ecole Normale Supérieure de Lyon, Lyon, France
| | - Olivier Merrot
- Hospices Civils de Lyon, Hôpital de la Croix-Rousse, Service ORL, Lyon, France
| | | | - Yves Tourneur
- INSERM, UMR886, Cardioprotection, Lyon, France
- Centre Commun de Quantimétrie, Université de Lyon, Lyon, France
| | | | - Martine Jaspers
- Ear, Nose, and Throat Department, Head and Neck Surgery, Leuven, Belgium
| | - Mark Jorissen
- Ear, Nose, and Throat Department, Head and Neck Surgery, Leuven, Belgium
| | - François-Loïc Cosset
- Université de Lyon (UCB-Lyon1), IFR128, Lyon, France
- INSERM, U758, Lyon, France
- Ecole Normale Supérieure de Lyon, Lyon, France
| | - Patrice Bouvagnet
- Université de Lyon, Lyon, France
- Hospices Civils de Lyon, Groupe Hospitalier Est, Laboratoire Cardiogénétique, Bron, France
- INSERM, CIC 201, Hôpital Louis Pradel, Bron, France
- * E-mail:
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