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NiONPs-induced alteration in calcium signaling and mitochondrial function in pulmonary artery endothelial cells involves oxidative stress and TRPV4 channels disruption

hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorGERMANDE, Ophélie
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBAUDRIMONT, Magalie
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
hal.structure.identifierService d’Exploration Fonctionnelle Respiratoire
dc.contributor.authorBEAUFILS, Fabien
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
dc.contributor.authorFREUND-MICHEL, Véronique
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
dc.contributor.authorDUCRET, Thomas
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
dc.contributor.authorQUIGNARD, Jean-François
hal.structure.identifierUniversity of Pittsburgh School of Medicine
dc.contributor.authorERRERA, Marie-Hélène
hal.structure.identifierBordeaux Imaging Center [BIC]
dc.contributor.authorLACOMME, Sabrina
hal.structure.identifierBordeaux Imaging Center [BIC]
dc.contributor.authorGONTIER, Etienne
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMORNET, Stéphane
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBEJKO, Megi
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
dc.contributor.authorMULLER, Bernard
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
hal.structure.identifierService d’Exploration Fonctionnelle Respiratoire
dc.contributor.authorMARTHAN, Roger
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
dc.contributor.authorGUIBERT, Christelle
hal.structure.identifierCentre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
dc.contributor.authorDEWEIRDT, Juliette
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBAUDRIMONT, Isabelle
dc.date.issued2022
dc.identifier.issn1743-5390
dc.description.abstractEnIn New Caledonia, anthropic activities, such as mining, increase the natural erosion of soils in nickel mines, which in turn, releases nickel oxide nanoparticles (NiONPs) into the atmosphere. Pulmonary vascular endothelial cells represent one of the primary targets for inhaled nanoparticles. The objective of this in vitro study was to assess the cytotoxic effects of NiONPs on human pulmonary artery endothelial cells (HPAEC). Special attention will be given to the level of oxidative stress and calcium signaling, which are involved in the physiopathology of cardiovascular diseases. HPAEC were exposed to NiONPs (0.5–150 μg/cm2) for 4 or 24 h. The following different endpoints were studied: (i) ROS production using CM-H2DCF-DA probe, electron spin resonance, and MitoSOX probe; the SOD activity was also measured (ii) calcium signaling with Fluo4-AM, Rhod-2, and Fluo4-FF probes; (iii) inflammation by IL-6 production and secretion and, (iv) mitochondrial dysfunction and apoptosis with TMRM and MitoTracker probes, and AnnexinV/PI. Our results have evidenced that NiONPs induced oxidative stress in HPAEC. This was demonstrated by an increase in ROS production and a decrease in SOD activity, the two mechanisms seem to trigger a pro-inflammatory response with IL-6 secretion. In addition, NiONPs exposure altered calcium homeostasis inducing an increased cytosolic calcium concentration ([Ca2+]i) that was significantly reduced by the extracellular calcium chelator EGTA and the TRPV4 inhibitor HC-067047. Interestingly, exposure to NiONPs also altered TRPV4 activity. Finally, HPAEC exposure to NiONPs increased intracellular levels of both ROS and calcium ([Ca2+]m) in mitochondria, leading to mitochondrial dysfunction and HPAEC apoptosis.
dc.language.isoen
dc.publisherTaylor & Francis
dc.subject.enNickel oxide nanoparticles (NiONPs)
dc.subject.enpulmonary endothelial cells
dc.subject.enreactive oxygen species
dc.subject.encalcium signaling
dc.subject.enmitochondrial dysfunction
dc.title.enNiONPs-induced alteration in calcium signaling and mitochondrial function in pulmonary artery endothelial cells involves oxidative stress and TRPV4 channels disruption
dc.typeArticle de revue
dc.identifier.doi10.1080/17435390.2022.2030821
dc.subject.halSciences du Vivant [q-bio]/Toxicologie
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Santé
bordeaux.journalNanotoxicology
bordeaux.page29-51
bordeaux.volume16
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-03675998
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03675998v1
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