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Pannetier P, Clérandeau C, Le Floch S, Cachot J, Morin B. Toxicity evaluation of water-accommodated fraction of heavy and light oils on the rainbow trout fish cell line RTL-W1. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:49715-49726. [PMID: 39080162 DOI: 10.1007/s11356-024-34458-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 07/19/2024] [Indexed: 08/15/2024]
Abstract
Fish are currently used models for the toxicity assessment of chemicals, including polycyclic aromatic hydrocarbons (PAHs). Alternative methods including fish cell lines are currently used to provide fast and reliable results on the toxic properties of chemicals while respecting ethical concerns about animal testing. The Rainbow trout liver cell line RTLW1 was used to analyze the effects of two water-accommodated fractions from two crude oils: Arabian Light crude oil (LO) and refined oil from Erika (HO). Several toxicity endpoints were assessed in this study, including cytotoxicity, EROD activity, DNA damage (comet and micronucleus assays), and ROS production. RTL-W1 cells were exposed for 24 h at two or three dilutions of WAF at 1000 µg/L (0.1% (1 μg/L), 1% (10 μg/L), and 10% (100 μg/L)) for cytotoxicity and EROD activity and 1% and 10% for ROS production and genotoxicity). Exposure of RTL-W1 cells to LO WAF induced a significant increase of EROD activity and ROS production and altered DNA integrity as revealed by both the comet assay and the micronucleus test for 10 µg/L of LO. On the other hand, HO WAF exhibited limited toxic effects except for an EROD induction for 1% WAF dilution. These results confirmed the usefulness of RTL-W1 cells for in vitro toxicological assessment of chemical mixtures.
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Affiliation(s)
- Pauline Pannetier
- CNRS, Bordeaux INP, EPOC, Univ. Bordeaux, UMR 5805, 33600, Pessac, France.
- ANSES, Ploufragan-Plouzané-Niort Laboratory, Unit Virology, Immunology and Ecotoxicology of Fish, Technopôle Brest-Iroise, 29280, Plouzané, France.
| | | | - Stéphane Le Floch
- Centre de Documentation, de Recherche Et d'Expérimentations Sur Les Pollutions Accidentelles Des Eaux, CEDRE, 29200, Brest, France
| | - Jérôme Cachot
- CNRS, Bordeaux INP, EPOC, Univ. Bordeaux, UMR 5805, 33600, Pessac, France
| | - Bénédicte Morin
- CNRS, Bordeaux INP, EPOC, Univ. Bordeaux, UMR 5805, 33600, Pessac, France
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2
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Chen D, Yang J, Zhang T, Li X, Xiong Q, Jiang S, Yi C. Mechanistic Investigation of Calcium Channel Regulation-Associated Genes in Pulmonary Arterial Hypertension and Signatures for Diagnosis. Mol Biotechnol 2024:10.1007/s12033-024-01112-x. [PMID: 38461180 DOI: 10.1007/s12033-024-01112-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/04/2024] [Indexed: 03/11/2024]
Abstract
Pulmonary arterial hypertension (PAH) is a severe cardiopulmonary disorder with complex causes. Calcium channel blockers have long been used in its treatment. Our study aimed to validate experimental results showing increased calcium ion concentration in PAH patients. We investigated the impact of genes related to calcium channel regulation on PAH development and developed an accurate diagnostic model. Clinical trial data from serum of 18 healthy individuals and 18 patients with PAH were retrospectively analyzed. Concentrations of calcium and potassium ions were determined and compared. Datasets were retrieved, selecting genes associated with calcium ion release. R packages processed the datasets, filtering 174 common genes, and conducting Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses. Six hub genes were identified, and nomogram and logistic regression prediction models were constructed. Random forest filtered cross genes, and a diagnostic model was developed and validated using an artificial neural network. The 174 intersection genes related to calcium ions showed significant correlations with biological processes, cellular components, and molecular functions. Six key genes were obtained by constructing a protein-protein interaction network. A diagnostic model with high accuracy (> 90%) and diagnostic capability (AUC = 0.98) was established using a neural network algorithm. This study validated the experimental results, identified key genes associated with calcium ions, and developed a highly accurate diagnostic model using a neural network algorithm. These findings provide insights into the role of calcium release genes in PAH and demonstrate the potential of the diagnostic model for clinical application. However, due to limitations in sample size and a lack of prognosis data, the regulatory mechanisms of calcium ions in PAH patients and their impact on the clinical prognosis of PAH patients still need further exploration in the future.
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Affiliation(s)
- Dongjuan Chen
- Department of Laboratory Medicine, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430070, China
| | - Jun Yang
- Department of Biomedical Engineering, Nanchang Hangkong University, Jiangxi, 330063, China
| | - Ting Zhang
- Department of Biomedical Engineering, Nanchang Hangkong University, Jiangxi, 330063, China
| | - Xuemei Li
- Department of Laboratory Medicine, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430070, China
| | - Qiliang Xiong
- Department of Biomedical Engineering, Nanchang Hangkong University, Jiangxi, 330063, China
| | - Shaofeng Jiang
- Department of Biomedical Engineering, Nanchang Hangkong University, Jiangxi, 330063, China
| | - Chen Yi
- Department of Biomedical Engineering, Nanchang Hangkong University, Jiangxi, 330063, China.
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3
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Cytotoxicity of Particulate Matter PM10 Samples from Ouagadougou, Burkina Faso. J Toxicol 2022; 2022:1786810. [PMID: 36310640 PMCID: PMC9616664 DOI: 10.1155/2022/1786810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 09/28/2022] [Accepted: 10/06/2022] [Indexed: 11/18/2022] Open
Abstract
Particulate matter (PM) is one of the main air pollutants with 257,000 deaths per year in Africa. Studying their toxic mechanisms of action could provide a better understanding of their effects on the population health. The objective of this study was to describe the PM10 toxic mechanism of action collected in 3 districts of Ouagadougou. Once per month and per site between November 2015 and February 2016, PM10 was sampled for 24 hours using the MiniVol TAS (AirMetrics, Eugene, USA). The collected filters were then stored in Petri dishes at room temperature for in vitro toxicological studies using human pulmonary artery endothelial cells (HPAEC) at the Bordeaux INSERM-U1045 Cardio-thoracic Research Center. The three study districts were classified based on PM10 level (high, intermediate, and low, respectively, for districts 2, 3, and 4). PM10 induced a concentration-dependent decrease in cell viability. A significant decrease in cell viability was observed at 1 µg/cm2, 10 µg/cm2, and 25 µg/cm2 for, respectively, districts 2, 3, and 4. A significant increase in the production of reactive oxygen species (ROS) was observed at 10 µg/cm2 for district 2 versus 5 µg/cm2 and 1 µg/cm2 for districts 3 and 4, respectively. Finally, a significant production of IL-6 was recorded from 5 µg/cm2 for district 4 versus 10 µg/cm2 for districts 2 and 3. Consequently, Ouagadougou is subjected to PM10 pollution, which can induce a significant production of ROS and IL-6 to cause adverse effects on the health of the population.
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Germande O, Beaufils F, Daffe G, Gonzalez P, Mornet S, Bejko M, Errera MH, Lacomme S, Gontier E, Guibert C, Baudrimont I, Baudrimont M. Cellular and molecular mechanisms of NiONPs toxicity on eel hepatocytes HEPA-E1: An illustration of the impact of Ni release from mining activity in New Caledonia. CHEMOSPHERE 2022; 303:135158. [PMID: 35640691 DOI: 10.1016/j.chemosphere.2022.135158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
Anthropic activities such as open pit mining, amplify the natural erosion of metals contained in the soils, particularly in New Caledonia, leading to atmospheric emission of nickel oxide nanoparticles (NiONPs). These particles are produced during extraction end up in aquatic ecosystems through deposition or leaching in the rivers. Despite alarming freshwater Ni concentrations, only few studies have focused on the cellular and molecular mechanisms of NiONPs toxicity on aquatic organisms and particularly on eels. Those fish are known to be sensitive to metal contamination, especially their liver, which is a key organ for lipid metabolism, detoxification and reproduction. The objective of this study was to assess in vitro the cytotoxic effects of NiONPs on Anguilla japonica hepatocytes, HEPA-E1. HEPA-E1 were exposed to NiONPs (0.5-5 μg/cm2) for 4 or 24 h. Several endpoints were studied: (i) viability, (ii) ROS production, SOD activity and selected anti-oxidant genes expression, (iii) inflammation, (iv) calcium signalling, (v) mitochondrial function and (vi) apoptosis. The results evidenced that NiONPs induce a decrease of cell viability and an increase in oxidative stress with a significant superoxide anion production. An increase of mitochondrial calcium concentration and a decrease of mitochondrial membrane potential were observed, leading to apoptosis. These results underline the potential toxic impact of NiONPs on eels living in mining areas. Therefore, eel exposure to NiONPs can affect their migration and reproduction in New Caledonia.
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Affiliation(s)
- Ophélie Germande
- Univ. Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U 1045, Centre de Recherche Cardio-Thoracique, avenue du Haut Lêveque, Pessac, F-33604, France; Univ. Bordeaux, CNRS, EPHE, UMR EPOC 5805, F-33615, Pessac, France
| | - Fabien Beaufils
- Univ. Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U 1045, Centre de Recherche Cardio-Thoracique, avenue du Haut Lêveque, Pessac, F-33604, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de Pédiatrie médicale, Bordeaux, F-33076, France
| | - Guillemine Daffe
- Univ. Bordeaux, CNRS, Observatoire Aquitain des Sciences de l'Univers, UAR 2567 POREA, F-33615, Pessac, France
| | - Patrice Gonzalez
- Univ. Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Univ. Bordeaux, CNRS, EPHE, UMR EPOC 5805, F-33615, Pessac, France
| | - Stéphane Mornet
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33076, Bordeaux, France
| | - Megi Bejko
- Univ. Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33076, Bordeaux, France
| | - Marie-Hélène Errera
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Sabrina Lacomme
- Univ. Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Univ. Bordeaux, CNRS, INSERM, Bordeaux Imaging Center, BIC, UAR CNRS 3420, US 004, F-33000, Bordeaux, France
| | - Etienne Gontier
- Univ. Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Univ. Bordeaux, CNRS, INSERM, Bordeaux Imaging Center, BIC, UAR CNRS 3420, US 004, F-33000, Bordeaux, France
| | - Christelle Guibert
- Inserm U 1045, Centre de Recherche Cardio-Thoracique, avenue du Haut Lêveque, Pessac, F-33604, France
| | - Isabelle Baudrimont
- Univ. Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Inserm U 1045, Centre de Recherche Cardio-Thoracique, avenue du Haut Lêveque, Pessac, F-33604, France
| | - Magalie Baudrimont
- Univ. Bordeaux, 146, rue Léo Saignat, Bordeaux, F-33076, France; Univ. Bordeaux, CNRS, EPHE, UMR EPOC 5805, F-33615, Pessac, France.
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5
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Zhang J, Wang P, Tan C, Zhao Y, Zhu Y, Bai J, Xiao X. Integrated transcriptomics and metabolomics unravel the metabolic pathway variations for barley β-glucan before and after fermentation with L. plantarum DY-1. Food Funct 2022; 13:4302-4314. [PMID: 35302565 DOI: 10.1039/d1fo02450g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The results of our previous study showed that the structure and function of β-glucan in barley were changed after fermentation by L. plantarum DY-1. In this study, the antioxidant activities of RBG (regular barley β-glucan, unfermented) and FBG (barley β-glucan, fermented with L. plantarum DY-1) were evaluated by adopting an in vivo animal model, Caenorhabditis elegans (C. elegans). We also carried out an integrated transcriptomic and metabolomic profiling for RBG and FBG to delineate their signature pathways. RBG treatment has better effects on SOD enzyme activity and ROS levels than FBG, while FBG treatment has better effects on the CAT enzyme activity and MDA content than RBG in C. elegans. Transcription group analysis showed that FBG mainly decreases the expression of the Cyp-D gene to inhibit the calcium signaling pathway, promotes the Wnt signaling pathway by up-regulating the GSK-3β gene and improving the oxidative damage of C. elegans; RBG mainly inhibits calcium signal pathways by reducing the expression of ANT-solute carrier family 25 genes, promoting life adjustment pathways by reducing the expression of the HSP-12.6 gene to improve the oxidative stress of C. elegans. Joint analysis showed that the difference between FBG and RBG in the regulation of oxidative stress is mainly reflected in the metabolism pathway of arachidonic acid. Under the regulation of FBG, the expression of the C03H5.4 gene was decreased, the expression of leukotriene A4, prostaglandin G2, arachidonic acid and phosphatidylcholine was decreased, and the expression of 14,15-DiHETrE was increased. Under the regulation of RBG, the expression of gene C03H5.4 was up-regulated, the expression of metabolites such as leukotriene B4 was up-regulated, and the expression of arachidonic acid and phosphatidylcholine was down-regulated.
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Affiliation(s)
- Jiayan Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Ping Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Cui Tan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Yansheng Zhao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Ying Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Juan Bai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Xiang Xiao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.
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6
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Germande O, Baudrimont M, Beaufils F, Freund-Michel V, Ducret T, Quignard JF, Errera MH, Lacomme S, Gontier E, Mornet S, Bejko M, Muller B, Marthan R, Guibert C, Deweirdt J, Baudrimont I. NiONPs-induced alteration in calcium signaling and mitochondrial function in pulmonary artery endothelial cells involves oxidative stress and TRPV4 channels disruption. Nanotoxicology 2022; 16:29-51. [PMID: 35090355 DOI: 10.1080/17435390.2022.2030821] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In 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.
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Affiliation(s)
- Ophélie Germande
- Université de Bordeaux, Bordeaux, France.,Inserm U 1045, Centre de Recherche Cardio-Thoracique, Pessac, France.,UMR EPOC 5805, Université de Bordeaux, Arcachon, France
| | - Magalie Baudrimont
- Université de Bordeaux, Bordeaux, France.,UMR EPOC 5805, Université de Bordeaux, Arcachon, France
| | - Fabien Beaufils
- Université de Bordeaux, Bordeaux, France.,Inserm U 1045, Centre de Recherche Cardio-Thoracique, Pessac, France.,Service d'Exploration Fonctionnelle Respiratoire, Service de Pédiatrie Médicale, CHU de Bordeaux, Bordeaux, France
| | - Véronique Freund-Michel
- Université de Bordeaux, Bordeaux, France.,Inserm U 1045, Centre de Recherche Cardio-Thoracique, Pessac, France
| | - Thomas Ducret
- Université de Bordeaux, Bordeaux, France.,Inserm U 1045, Centre de Recherche Cardio-Thoracique, Pessac, France
| | - Jean-François Quignard
- Université de Bordeaux, Bordeaux, France.,Inserm U 1045, Centre de Recherche Cardio-Thoracique, Pessac, France
| | - Marie-Hélène Errera
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Sabrina Lacomme
- Université de Bordeaux, Bordeaux, France.,CNRS, INSERM, BIC, UMS 3420, Université de Bordeaux, Bordeaux, France
| | - Etienne Gontier
- Université de Bordeaux, Bordeaux, France.,CNRS, INSERM, BIC, UMS 3420, Université de Bordeaux, Bordeaux, France
| | - Stéphane Mornet
- CNRS Bordeaux INP, ICMCB, UMR 5026, Université de Bordeaux, Bordeaux, France
| | - Megi Bejko
- CNRS Bordeaux INP, ICMCB, UMR 5026, Université de Bordeaux, Bordeaux, France
| | - Bernard Muller
- Université de Bordeaux, Bordeaux, France.,Inserm U 1045, Centre de Recherche Cardio-Thoracique, Pessac, France
| | - Roger Marthan
- Université de Bordeaux, Bordeaux, France.,Inserm U 1045, Centre de Recherche Cardio-Thoracique, Pessac, France.,Service d'Exploration Fonctionnelle Respiratoire, Service de Pédiatrie Médicale, CHU de Bordeaux, Bordeaux, France
| | | | - Juliette Deweirdt
- Université de Bordeaux, Bordeaux, France.,Inserm U 1045, Centre de Recherche Cardio-Thoracique, Pessac, France
| | - Isabelle Baudrimont
- Université de Bordeaux, Bordeaux, France.,Inserm U 1045, Centre de Recherche Cardio-Thoracique, Pessac, France
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7
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Wang Y, Ma Y, Yao Y, Liu Q, Pang Y, Tang M. Ambient particulate matter triggers defective autophagy and hijacks endothelial cell renewal through oxidative stress-independent lysosomal impairment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 286:117295. [PMID: 34438478 DOI: 10.1016/j.envpol.2021.117295] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 02/20/2021] [Accepted: 04/30/2021] [Indexed: 06/13/2023]
Abstract
Ambient particulate matter (APM) has been authenticated to exert hazards on human vascular endothelial cells, including abnormal autophagy. However, the potential reasons for autophagosome accumulation are still obscure. Since autophagy is a dynamic process, it is imperative to systemically consider the autophagic induction combined with its degradation to reflect realistic scenarios. Therefore, in the current study, different exposure durations were initially employed for the detection of autophagic marker proteins to assess the dynamic autophagic state preliminarily. Additionally, LC3 turn-over and autophagic flux assays were used to determine the specific cause of LC3II upregulation in EA.hy926 human vascular endothelial cells by a type of standard urban particulate matter, PM SRM1648a. As a result, PM SRM1648a stimulates excess autophagic vacuoles in EA. hy926 cells, in which the underlying causes are probably different at varying incubation endpoints. Intriguingly, LC3II upregulation was due to the intensifying autophagic initiation after 6 h of exposure, whereas as exposure period was extended to 24 h, overloaded autophagic vacuoles were attributed to the defective autophagy. Mechanistically, PM SRM1648a damages EA. hy926 cells by inducing lysosomal disequilibrium and resultant autophagic malfunction which are not directly mediated by oxidative stress. These data indicate that appropriate maintenance of lysosomal function and autophagic flux is probably a protective measure against APM-induced endothelial cell damage.
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Affiliation(s)
- Yan Wang
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, Anhui, 230032, China; Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, 210009, China.
| | - Ying Ma
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, 210009, China
| | - Yongshuai Yao
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, 210009, China
| | - Qing Liu
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, 210009, China
| | - Yanting Pang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, 210009, China
| | - Meng Tang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, 210009, China
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8
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Deweirdt J, Ducret T, Quignard JF, Freund-Michel V, Lacomme S, Gontier E, Muller B, Marthan R, Guibert C, Baudrimont I. Effects of FW2 Nanoparticles Toxicity in a New In Vitro Pulmonary Vascular Cells Model Mimicking Endothelial Dysfunction. Cardiovasc Toxicol 2021; 22:14-28. [PMID: 34524626 DOI: 10.1007/s12012-021-09679-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/22/2021] [Indexed: 11/29/2022]
Abstract
Several epidemiological studies have revealed the involvement of nanoparticles (NPs) in respiratory and cardiovascular mortality. In this work, the focus will be on the effect of manufactured carbon black NPs for risk assessment of consumers and workers, as human exposure is likely to increase. Since the pulmonary circulation could be one of the primary targets of inhaled NPs, patients suffering from pulmonary hypertension (PH) could be a population at risk. To compare the toxic effect of carbon black NPs in the pulmonary circulation under physiologic and pathological conditions, we developed a new in vitro model mimicking the endothelial dysfunction and vascular dynamics observed in vascular pathology such as PH. Human pulmonary artery endothelial cells were cultured under physiological conditions (static and normoxia 21% O2) or under pathological conditions (20% cycle stretch and hypoxia 1% O2). Then, cells were treated for 4 or 6 h with carbon black FW2 NPs from 5 to 10 µg/cm2. Different endpoints were studied: (i) NPs internalization by transmission electronic microscopy; (ii) oxidative stress by CM-H2DCFDA probe and electron paramagnetic resonance; (iii) NO (nitrites and nitrates) production by Griess reaction; (iv) inflammation by ELISA assay; and (v) calcium signaling by confocal microscopy. The present study characterizes the in vitro model mimicking endothelial dysfunction in PH and indicates that, under such pathological conditions, oxidative stress and inflammation are increased along with calcium signaling alterations, as compared to the physiological conditions. Human exposure to carbon black NPs could produce greater deleterious effects in vulnerable patients suffering from cardiovascular diseases.
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Affiliation(s)
- J Deweirdt
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France
| | - T Ducret
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France
| | - J-F Quignard
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France
| | - V Freund-Michel
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France
| | - S Lacomme
- CNRS, Bordeaux Imaging Center UMS 3420 CNRS - US4 INSERM, 33000, Bordeaux, France
| | - E Gontier
- CNRS, Bordeaux Imaging Center UMS 3420 CNRS - US4 INSERM, 33000, Bordeaux, France
| | - B Muller
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France
| | - R Marthan
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France.,CHU de Bordeaux, Service d'Exploration Fonctionnelle Respiratoire, 33000, Bordeaux, France
| | - C Guibert
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France
| | - I Baudrimont
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France. .,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France.
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9
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Negri S, Faris P, Moccia F. Reactive Oxygen Species and Endothelial Ca 2+ Signaling: Brothers in Arms or Partners in Crime? Int J Mol Sci 2021; 22:ijms22189821. [PMID: 34575985 PMCID: PMC8465413 DOI: 10.3390/ijms22189821] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/08/2021] [Accepted: 09/08/2021] [Indexed: 12/20/2022] Open
Abstract
An increase in intracellular Ca2+ concentration ([Ca2+]i) controls virtually all endothelial cell functions and is, therefore, crucial to maintain cardiovascular homeostasis. An aberrant elevation in endothelial can indeed lead to severe cardiovascular disorders. Likewise, moderate amounts of reactive oxygen species (ROS) induce intracellular Ca2+ signals to regulate vascular functions, while excessive ROS production may exploit dysregulated Ca2+ dynamics to induce endothelial injury. Herein, we survey how ROS induce endothelial Ca2+ signals to regulate vascular functions and, vice versa, how aberrant ROS generation may exploit the Ca2+ handling machinery to promote endothelial dysfunction. ROS elicit endothelial Ca2+ signals by regulating inositol-1,4,5-trisphosphate receptors, sarco-endoplasmic reticulum Ca2+-ATPase 2B, two-pore channels, store-operated Ca2+ entry (SOCE), and multiple isoforms of transient receptor potential (TRP) channels. ROS-induced endothelial Ca2+ signals regulate endothelial permeability, angiogenesis, and generation of vasorelaxing mediators and can be exploited to induce therapeutic angiogenesis, rescue neurovascular coupling, and induce cancer regression. However, an increase in endothelial [Ca2+]i induced by aberrant ROS formation may result in endothelial dysfunction, inflammatory diseases, metabolic disorders, and pulmonary artery hypertension. This information could pave the way to design alternative treatments to interfere with the life-threatening interconnection between endothelial ROS and Ca2+ signaling under multiple pathological conditions.
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Jheng YT, Putri DU, Chuang HC, Lee KY, Chou HC, Wang SY, Han CL. Prolonged exposure to traffic-related particulate matter and gaseous pollutants implicate distinct molecular mechanisms of lung injury in rats. Part Fibre Toxicol 2021; 18:24. [PMID: 34172050 PMCID: PMC8235648 DOI: 10.1186/s12989-021-00417-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 06/02/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Exposure to air pollution exerts direct effects on respiratory organs; however, molecular alterations underlying air pollution-induced pulmonary injury remain unclear. In this study, we investigated the effect of air pollution on the lung tissues of Sprague-Dawley rats with whole-body exposure to traffic-related PM1 (particulate matter < 1 μm in aerodynamic diameter) pollutants and compared it with that in rats exposed to high-efficiency particulate air-filtered gaseous pollutants and clean air controls for 3 and 6 months. Lung function and histological examinations were performed along with quantitative proteomics analysis and functional validation. RESULTS Rats in the 6-month PM1-exposed group exhibited a significant decline in lung function, as determined by decreased FEF25-75% and FEV20/FVC; however, histological analysis revealed earlier lung damage, as evidenced by increased congestion and macrophage infiltration in 3-month PM1-exposed rat lungs. The lung tissue proteomics analysis identified 2673 proteins that highlighted the differential dysregulation of proteins involved in oxidative stress, cellular metabolism, calcium signalling, inflammatory responses, and actin dynamics under exposures to PM1 and gaseous pollutants. The presence of PM1 specifically enhanced oxidative stress and inflammatory reactions under subchronic exposure to traffic-related PM1 and suppressed glucose metabolism and actin cytoskeleton signalling. These factors might lead to repair failure and thus to lung function decline after chronic exposure to traffic-related PM1. A detailed pathogenic mechanism was proposed to depict temporal and dynamic molecular regulations associated with PM1- and gaseous pollutants-induced lung injury. CONCLUSION This study explored several potential molecular features associated with early lung damage in response to traffic-related air pollution, which might be used to screen individuals more susceptible to air pollution.
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Affiliation(s)
- Yu-Teng Jheng
- Master Program in Clinical Pharmacogenomics and Pharmacoproteomics, College of Pharmacy, Taipei Medical University, Mailing address: 250 Wuxing St, Taipei, 11031, Taiwan
| | - Denise Utami Putri
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Pulmonary Research Center, Division of Pulmonary Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Hsiao-Chi Chuang
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Hsiu-Chu Chou
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - San-Yuan Wang
- Master Program in Clinical Pharmacogenomics and Pharmacoproteomics, College of Pharmacy, Taipei Medical University, Mailing address: 250 Wuxing St, Taipei, 11031, Taiwan
| | - Chia-Li Han
- Master Program in Clinical Pharmacogenomics and Pharmacoproteomics, College of Pharmacy, Taipei Medical University, Mailing address: 250 Wuxing St, Taipei, 11031, Taiwan.
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11
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Liang X, Wu T, Tang M. Microarray analysis of gene expression differences in microglia after exposure to graphene quantum dots. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 749:141385. [PMID: 32818856 DOI: 10.1016/j.scitotenv.2020.141385] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
Graphene quantum dots (GQDs) have been broadly applied in biomedicine in recent years. So far, researches have reported that GQDs might contribute to the injury of the central nervous system (CNS), yet the latent toxicological mechanism is not clear. This study aims to investigate the underlying biological mechanism responsible for the neurotoxicity of nitrogen-doped GQDs (N-GQDs) and amino-functionalized GQDs (A-GQDs) by use of genome-wide transcription microarray. The findings showed that 174 and 1341 genes were altered significantly in the BV2 cells treated by 25 μg/mL N-GQDs and 100 μg/mL N-GQDs compared with the control, respectively. As for the BV2 cells exposed to 100 μg/mL A-GQDs, 1396 diversely expressed genes were detected. By comparing the 100 μg/mL N-GQDs exposed group with 100 μg/mL A-GQDs exposed group, the expression of 256 genes was extensively altered, including 58 upregulated genes and 198 downregulated genes. From Gene Ontology (GO) analysis, the altered genes were mainly enriched in functions of ion channel activation and cellular processes. Based on the KEGG pathway and signal-net analysis, the toxicity of GQDs in BV2 cells was closely related to calcium signaling pathway, cell cycle and endocytosis. And the pathways that the shared mRNAs involved all served as the crucial roles in the neurotoxicity of GQDs despite the chemical functionalization (N-GQDs or A-GQDs). In addition, the consequences from qRT-PCR, Western blot, intracellular calcium level measurements and comet assay further confirmed that calcium dyshomeostasis, DNA damage and cell cycle arrest were the key factors responsible for the GQDs-induced neurotoxicity through affecting several classical signaling pathways. In conclusion, our research will supply essential data for further studies on mechanisms of GQDs-induced neurotoxicity by use of genome-wide screening.
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Affiliation(s)
- Xue Liang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, P.R. China
| | - Tianshu Wu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, P.R. China.
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, P.R. China.
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12
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Liang S, Zhang J, Ning R, Du Z, Liu J, Batibawa JW, Duan J, Sun Z. The critical role of endothelial function in fine particulate matter-induced atherosclerosis. Part Fibre Toxicol 2020; 17:61. [PMID: 33276797 PMCID: PMC7716453 DOI: 10.1186/s12989-020-00391-x] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 11/17/2020] [Indexed: 12/21/2022] Open
Abstract
Ambient and indoor air pollution contributes annually to approximately seven million premature deaths. Air pollution is a complex mixture of gaseous and particulate materials. In particular, fine particulate matter (PM2.5) plays a major mortality risk factor particularly on cardiovascular diseases through mechanisms of atherosclerosis, thrombosis and inflammation. A review on the PM2.5-induced atherosclerosis is needed to better understand the involved mechanisms. In this review, we summarized epidemiology and animal studies of PM2.5-induced atherosclerosis. Vascular endothelial injury is a critical early predictor of atherosclerosis. The evidence of mechanisms of PM2.5-induced atherosclerosis supports effects on vascular function. Thus, we summarized the main mechanisms of PM2.5-triggered vascular endothelial injury, which mainly involved three aspects, including vascular endothelial permeability, vasomotor function and vascular reparative capacity. Then we reviewed the relationship between PM2.5-induced endothelial injury and atherosclerosis. PM2.5-induced endothelial injury associated with inflammation, pro-coagulation and lipid deposition. Although the evidence of PM2.5-induced atherosclerosis is undergoing continual refinement, the mechanisms of PM2.5-triggered atherosclerosis are still limited, especially indoor PM2.5. Subsequent efforts of researchers are needed to improve the understanding of PM2.5 and atherosclerosis. Preventing or avoiding PM2.5-induced endothelial damage may greatly reduce the occurrence and development of atherosclerosis.
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Affiliation(s)
- Shuang Liang
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Jingyi Zhang
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Ruihong Ning
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Zhou Du
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Jiangyan Liu
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Joe Werelagi Batibawa
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Junchao Duan
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
| | - Zhiwei Sun
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing, 100069 People’s Republic of China
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing, 100069 People’s Republic of China
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Gao J, Zhang H, Xiong P, Yan X, Liao C, Jiang G. Application of electrophysiological technique in toxicological study: From manual to automated patch-clamp recording. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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14
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Rhubarb-Aconite Decoction (RAD) Drug-Containing Serum Alleviated Endotoxin-Induced Oxidative Stress Injury and Inflammatory Response in Caco-2 Cells In Vitro. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:5834502. [PMID: 32714409 PMCID: PMC7355342 DOI: 10.1155/2020/5834502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 05/25/2020] [Indexed: 11/17/2022]
Abstract
Rhubarb-Aconite Decoction (RAD), a famous Chinese medicine prescription, has been widely used for treating intestinal injury. However, the effect of RAD on intestinal epithelial cells is unclear. The aim of this study was to investigate the effects of RAD drug-containing serum on the oxidative stress injury and inflammatory response induced by endotoxin (ET) in Caco-2 cells in vitro. Lipid peroxide malondialdehyde (MDA), lactate dehydrogenase (LDH), caspase-11, tumor necrosis factor-α(TNF-α), interleukin-3(IL-3), and cytokeratin (CK)18, adenosine triphosphate (ATP) activity, and intracellular free calcium ion levels were measured. The results showed that ET triggered the activation of caspase-11 and the massive release of TNF-α, increased the inhibitory rate of cell growth, MDA, and LDH expressions in Caco-2 cells. Moreover, RAD drug-containing serum could inhibit caspase-11 activation, decrease the release of TNF-α and IL-3, reduce intracellular free calcium ion, and enhance CK 18 expression and ATP activity. These novel findings demonstrated that ET-induced oxidative stress injury and inflammatory response of Caco-2 cells were improved by RAD drug-containing serum, indicating that RAD may be a good choice for the treatment of intestinal injury.
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15
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Wang Y, Wu T, Tang M. Ambient particulate matter triggers dysfunction of subcellular structures and endothelial cell apoptosis through disruption of redox equilibrium and calcium homeostasis. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:122439. [PMID: 32200236 DOI: 10.1016/j.jhazmat.2020.122439] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 02/07/2020] [Accepted: 02/29/2020] [Indexed: 06/10/2023]
Abstract
Ambient particulate matter (APM) is becoming a global environmental problem that seriously jeopardizes public health. Previous evidence hinted that APM correlates to cardiovascular diseases. As a potential target, equilibrium of endothelial cell is a prerequisite for vascular health which could be vulnerably attacked by particles, but the specific mechanisms whereby APM damages endothelial cells have not been fully elucidated. In the current study, based on two classical mechanisms of oxidative stress and intracellular calcium overload, we aimed to explore their roles in APM-induced endothelial cell apoptosis from the perspective of subcellular levels, including endoplasmic reticulum (ER) stress and mitochondrial dysfunction. As a result, PM SRM1648a results in oxidative stress and calcium overload in EA.hy926 cells. Additionally, ERs and mitochondria could be severely disturbed by particles in morphology and function, characterized by swelling ERs, mitochondrial fission and disappearance of cristae, coupled with ER damage, mtROS overproduction and significant reduction in mitochondrial membrane potential (MMP). Adverse effects on these organelles are the prime culprits of following apoptosis in endothelial cells. Fortunately, additional antioxidants and calcium inhibitors could mitigate cellular lesion through improvement of subcellular function. Intriguingly, antioxidants relieve cell stress via both mitochondrial and ER stress-mediated pathways, whereas the role of calcium modulators in cell apoptosis is independent of the mitochondrial pathway but could be explained by amelioration of ER stress. In conclusion, our data basically revealed that internalized PM SRM1648a triggers oxidative stress and calcium influx in EA.hy926 endothelial cells, followed by multiple subcellular damage and eventually contributes to cell death, during which antioxidants and calcium inhibitors confer protective effects.
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Affiliation(s)
- Yan Wang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, 210009, China.
| | - Tianshu Wu
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, 210009, China
| | - Meng Tang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu, 210009, China.
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16
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Deweirdt J, Quignard JF, Lacomme S, Gontier E, Mornet S, Savineau JP, Marthan R, Guibert C, Baudrimont I. In vitro study of carbon black nanoparticles on human pulmonary artery endothelial cells: effects on calcium signaling and mitochondrial alterations. Arch Toxicol 2020; 94:2331-2348. [PMID: 32394085 DOI: 10.1007/s00204-020-02764-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 04/22/2020] [Indexed: 02/06/2023]
Abstract
Human exposure to manufactured nanoparticles (NPs) is a public health concern. Endothelial cells lining the inner surface of arteries could be one of the primary targets for inhaled nanoparticles. Moreover, it is well known that alteration in calcium signaling is a critical event involved in the physiopathology of cardiovascular diseases. The objective of this study was to assess the role of oxidative stress in carbon black FW2 NPs-induced alteration in calcium signaling and mitochondria in human pulmonary artery endothelial cells. To this end, cells were exposed for 4 or 24 h to FW2 NPs (1-10 μg/cm2) and the following endpoints were studied: (i) production of ROS by fluorimetry and electron paramagnetic resonance, (ii) variation in intracellular calcium concentration by confocal microscopy, and (iii) mitochondrial alteration and apoptosis by confocal microscopy and transmission electronic microscopy. Exposure to FW2 NPs concentration-dependently increases oxidative stress, evidenced by the production of superoxide anion leading to an alteration in calcium content of intracellular organelles, such as endoplasmic reticulum and mitochondria activating, in turn, intrinsic apoptosis. This study provides evidence that FW2 NPs exposure impairs calcium signaling and mitochondria triggered by oxidative stress, and, thus, could act as a cardiovascular disease risk owing to the key role of calcium homeostasis in the control of vascular tone.
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Affiliation(s)
- J Deweirdt
- Univ. Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux U 1045, 33604, Pessac, France.,Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux U1045, 33600, Pessac, France
| | - J F Quignard
- Univ. Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux U 1045, 33604, Pessac, France.,Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux U1045, 33600, Pessac, France
| | - S Lacomme
- CNRS, Bordeaux Imaging Center UMS 3420 CNRS-US4 INSERM, 33000, Bordeaux, France
| | - E Gontier
- CNRS, Bordeaux Imaging Center UMS 3420 CNRS-US4 INSERM, 33000, Bordeaux, France
| | - S Mornet
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB, UMR 5026, 33076, Bordeaux, France
| | - J P Savineau
- Univ. Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux U 1045, 33604, Pessac, France.,Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux U1045, 33600, Pessac, France
| | - R Marthan
- Univ. Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux U 1045, 33604, Pessac, France.,Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux U1045, 33600, Pessac, France.,CHU de Bordeaux, Service d'Exploration Fonctionnelle Respiratoire, 33000, Bordeaux, France
| | - C Guibert
- Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux U1045, 33600, Pessac, France
| | - I Baudrimont
- Univ. Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux U 1045, 33604, Pessac, France. .,Inserm, Centre de Recherche Cardio-Thoracique de Bordeaux U1045, 33600, Pessac, France.
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17
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Wang Y, Tang M. PM2.5 induces autophagy and apoptosis through endoplasmic reticulum stress in human endothelial cells. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 710:136397. [PMID: 32050373 DOI: 10.1016/j.scitotenv.2019.136397] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 12/10/2019] [Accepted: 12/27/2019] [Indexed: 06/10/2023]
Abstract
Endothelial cells integrally form a crucial interface that maintains homeostasis of the cardiovascular system. As a vulnerable target of PM2.5, the underlying mechanisms of endothelial cell damage have yet to be fully elucidated. In the current study, two types of cell death, including autophagy and apoptosis, and an important organelle of the endoplasmic reticulum (ER) were focalized following PM2.5 exposure. As a result, the internalization of PM2.5 has the ability to induce excess ER stress, which is a crucial step for further autophagy and apoptosis in human endothelial cells, as confirmed by the pre-treatment with the inhibitor of ER stress (4-PBA) which effectively mitigates the apoptosis rate and LC3II expression. Intriguingly, crosstalk between ER stress and autophagy demonstrated that ER stress is probably involved in autophagic events, whereas autophagy has no significant effect on ER stress but confer a protective role against PM2.5-induced endothelial cell apoptosis. Moreover, PM2.5 results in blockage of autophagic flux (failed fusion between autophagosomes and lysosomes), which is detrimental to endothelial cell survival. In conclusion, our findings provide a valuable insight into the relation between autophagy and apoptosis under PM2.5-induced ER stress conditions, where the interplay between them ultimately determines cell fate.
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Affiliation(s)
- Yan Wang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, China
| | - Meng Tang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, Jiangsu 210009, China.
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18
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Crobeddu B, Baudrimont I, Deweirdt J, Sciare J, Badel A, Camproux AC, Bui LC, Baeza-Squiban A. Lung Antioxidant Depletion: A Predictive Indicator of Cellular Stress Induced by Ambient Fine Particles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:2360-2369. [PMID: 31961142 DOI: 10.1021/acs.est.9b05990] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Regulations on ambient particulate matter (PM) are becoming more stringent because of adverse health effects arising from PM exposure. PM-induced oxidant production is a key mechanism behind the observed health effects and is heavily dependent on PM composition. Measurement of the intrinsic oxidative potential (OP) of PM could provide an integrated indicator of PM bioreactivity and could serve as a better metric of PM hazard exposure than PM mass concentration. The OP of two chemically contrasted PM2.5 samples was compared through four acellular assays, and OP predictive capability was evaluated in different cellular assays on two in vitro lung cell models. PM2.5 collected in Paris at a site close to the traffic exhibited a systematically higher OP in all assays compared to PM2.5 enriched in particles from domestic wood burning. Similar results were obtained for oxidative stress, expression of antioxidant enzymes, and pro-inflammatory chemokine in human bronchial epithelial and endothelial cells. The strongest correlations between OP assays and cellular responses were observed with the antioxidant (ascorbic acid and glutathione) depletion (OPAO) assay. Multivariate regression analysis from OP daily measurements suggested that OPAO was strongly correlated with polycyclic aromatic hydrocarbons at the traffic site while it was correlated with potassium for the domestic wood burning sample.
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Affiliation(s)
- Belinda Crobeddu
- Université de Paris, BFA, UMR 8251 CNRS , F-75013 Paris , France
| | - Isabelle Baudrimont
- Université de Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux U1045 , F-33604 Pessac , France
| | - Juliette Deweirdt
- Université de Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux U1045 , F-33604 Pessac , France
| | - Jean Sciare
- Laboratoire des Sciences du Climat et de l'Environnement, CEA-CNRS-UVSQ , F-91190 Gif-sur-Yvette , France
- Energy, Environment and Water Research Center , The Cyprus Institute , 2121 Aglantzia , Cyprus
| | - Anne Badel
- Université de Paris, BFA, UMR 8251, CNRS, ERL 1133, Inserm , F-75013 Paris , France
| | - Anne-Claude Camproux
- Université de Paris, BFA, UMR 8251, CNRS, ERL 1133, Inserm , F-75013 Paris , France
| | - Linh Chi Bui
- Université de Paris, BFA, UMR 8251 CNRS , F-75013 Paris , France
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Riggs DW, Zafar N, Krishnasamy S, Yeager R, Rai SN, Bhatnagar A, O'Toole TE. Exposure to airborne fine particulate matter is associated with impaired endothelial function and biomarkers of oxidative stress and inflammation. ENVIRONMENTAL RESEARCH 2020; 180:108890. [PMID: 31718786 PMCID: PMC6899204 DOI: 10.1016/j.envres.2019.108890] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 10/30/2019] [Accepted: 11/01/2019] [Indexed: 05/16/2023]
Abstract
Epidemiological evidence suggests that exposure to air pollution is a leading risk factor for cardiovascular disease (CVD). However, there is little direct evidence linking exposure to vascular dysfunction. We conducted a cross-sectional study of 100 participants, recruited from the University of Louisville Clinics. Endothelial function was assessed by calculating the reactive hyperemia index (RHI). Oxidative stress was indexed by measuring urinary levels of isoprostanes (n = 91). Inflammatory biomarkers were measured in the plasma (n = 80). Daily average PM2.5 levels were obtained from regional monitoring stations. Adjusted associations between PM2.5 levels and measured outcomes were tested using generalized linear models. The average age of participants was 48 years (44% male, 62% white); 52% had a diagnosis of hypertension, and 44% had type-2 diabetes. A 12.4% decrease in RHI was associated with 10 μg/m3 increase in PM2.5 (95% CI: 21.0, -2.7). The F-2 isoprostane metabolite showed a positive association of 28.4% (95% CI: 2.7, 60.3) per 10 μg/m3 increase in PM2.5. Positive associations were observed with angiopoietin 1 (17.4%; 95% CI: 2.8, 33.8), vascular endothelial growth factor (10.4%; 95% CI: 0.6, 21.0), placental growth factor (31.7%; 95% CI: 12.2, 54.5), intracellular adhesion molecule-1 (24.6%; 95% CI: 1.6, 52.8), and matrix metalloproteinase-9 (30.3%; 95% CI: 8.0, 57.5) per 10 μg/m3 increase in PM2.5. Additionally, a 10 μg/m3 increase in PM2.5 was associated with 15.9% decrease in vascular cell adhesion molecule-1 (95% CI: 28.3, -1.3). These findings suggest that exposure to PM2.5 is associated with impaired vascular function, which may result from oxidative stress and inflammation, thereby leading to a pro-atherogenic state.
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Affiliation(s)
- Daniel W Riggs
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, 40292, USA; Department of Bioinformatics and Biostatics, University of Louisville, Louisville, KY, 40292, USA
| | - Nagma Zafar
- Department of Pediatrics, University of Louisville, Louisville, KY, 40292, USA
| | - Sathya Krishnasamy
- Department of Medicine, Division of Endocrinology, Metabolism, and Diabetes, University of Louisville, Louisville, KY, 40292, USA
| | - Ray Yeager
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, 40292, USA
| | - Shesh N Rai
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, 40292, USA; Department of Bioinformatics and Biostatics, University of Louisville, Louisville, KY, 40292, USA; Biostatistics and Bioinformatics Facility, JG Brown Cancer Center, University of Louisville, Louisville, KY, 40292, USA
| | - Aruni Bhatnagar
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, 40292, USA
| | - Timothy E O'Toole
- Christina Lee Brown Envirome Institute, University of Louisville, Louisville, KY, 40292, USA.
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1,25-Dihydroxy Vitamin D 3 Attenuates the Oxidative Stress-Mediated Inflammation Induced by PM 2.5via the p38/NF-κB/NLRP3 Pathway. Inflammation 2019; 42:702-713. [PMID: 30430362 DOI: 10.1007/s10753-018-0928-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Vitamin D3 is reported to be involved in the regulation of inflammatory processes. In this study, biomarkers related to oxidative stress and inflammation were investigated to clarify the protective effects and possible mechanism of 1,25-dihydroxy vitamin D3 (1,25-(OH)2D3) on PM2.5-induced inflammatory response. In the in vitro study using human bronchial epithelial (HBE) cells, aqueous extracts of PM2.5 could induce oxidative damage which is characterized by significant increases in production of reactive oxygen species, malonaldehyde concentration, and protein expression of HSPA1A and HO-1. Meanwhile, PM2.5 caused secretion of inflammatory factors (IL-6, IL-8) in the culture medium as well as phosphorylation of p38, nuclear factor-kappa B (NF-κB) inhibitor alpha (IκBα), and NF-κB p65 proteins. Increases in NLRP3 expression was also observed in HBE cells after PM2.5 exposure. However, all these biomarkers were remarkably attenuated by a 24-h pretreatment of 1 nM 1,25-(OH)2D3. Furthermore, 1,25-(OH)2D3 also reduced transcriptional activation of NF-κB induced by PM2.5 as indicated by a significant decrease in luciferase activity in HBE cells stably transfected with the NF-κB response element (RE)-driven luciferase reporter. Taken together, our findings provided novel experimental evidences supporting that vitamin D3 could reduce the predominantly oxidative stress-mediated inflammation induced by PM2.5via the p38/NF-κB/NLRP3 signaling pathway.
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Kruk J, Aboul-Enein HY, Kładna A, Bowser JE. Oxidative stress in biological systems and its relation with pathophysiological functions: the effect of physical activity on cellular redox homeostasis. Free Radic Res 2019; 53:497-521. [PMID: 31039624 DOI: 10.1080/10715762.2019.1612059] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The body of evidence from the past three decades demonstrates that oxidative stress can be involved in several diseases. This study aims to summarise the current state of knowledge on the association between oxidative stress and the pathogenesis of some characteristic to the biological systems diseases and aging process. This review also presents the effect of physical activity on redox homeostasis. There is strong evidence from studies for participation of reactive oxygen and nitrogen species in pathogenesis of acute and chronic diseases based on animal models and human studies. Elevated levels of pro-oxidants and various markers of the oxidative stress and cells and tissues damage linked with pathogenesis of cancer, atherosclerosis, neurodegenerative diseases hypertension, diabetes mellitus, cardiovascular disease, atherosclerosis, reproductive system diseases, and aging were reported. Evidence confirmed that inflammation contributes widely to multiple chronic diseases and is closely linked with oxidative stress. Regular moderate physical activity regulates oxidative stress enhancing cellular antioxidant defence mechanisms, whereas acute exercise not preceded by training can alter cellular redox homeostasis towards higher level of oxidative stress. Future studies are needed to clarify the multifaceted effects of reactive oxygen/nitrogen species on cells and tissues and to continue study on the biochemical roles of antioxidants and physical activity in prevention of oxidative stress-related tissue injury.
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Affiliation(s)
- Joanna Kruk
- a Faculty of Physical Culture and Health Promotion , University of Szczecin , Cukrowa 12 , Szczecin , Poland
| | - Hassan Y Aboul-Enein
- b Department of National Pharmaceutical and Medicinal Chemistry, Division of Pharmaceutical and Drug Industries Research , National Research Centre , Dokki , Egypt
| | - Aleksandra Kładna
- c Faculty of Medicine, Biotechnology and Laboratory Medicine , Pomeranian Medical University , Szczecin , Poland
| | - Jacquelyn E Bowser
- d John Hazen White College of Arts & Sciences , Johnson & Wales University , Providence , USA
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Thompson LC, Kim YH, Martin BL, Ledbetter AD, Dye JA, Hazari MS, Gilmour MI, Farraj AK. Pulmonary exposure to peat smoke extracts in rats decreases expiratory time and increases left heart end systolic volume. Inhal Toxicol 2019; 30:439-447. [PMID: 30642191 DOI: 10.1080/08958378.2018.1551443] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Exposure to wildland fire-related particulate matter (PM) causes adverse health outcomes. However, the impacts of specific biomass sources remain unclear. The purpose of this study was to investigate cardiopulmonary responses in rats following exposure to PM extracts collected from peat fire smoke. We hypothesized that peat smoke PM would dose-dependently alter cardiopulmonary function. Male Sprague-Dawley rats (n = 8/group) were exposed to 35 µg (Lo PM) or 350 µg (Hi PM) of peat smoke PM extracts suspended in saline, or saline alone (Vehicle) via oropharyngeal aspiration (OA). Ventilatory expiration times, measured in whole-body plethysmographs immediately after OA, were the lowest in Hi PM exposed subjects at 6 min into recovery (p = .01 vs. Lo PM, p = .08 vs. Vehicle) and resolved shortly afterwards. The next day, we evaluated cardiovascular function in the same subjects via cardiac ultrasound under isoflurane anesthesia. Compared to Vehicle, Hi PM had 45% higher end systolic volume (p = .03) and 17% higher pulmonary artery blood flow acceleration/ejection time ratios, and both endpoints expressed significant increasing linear trends by dose (p = .01 and .02, respectively). In addition, linear trend analyses across doses detected an increase for end diastolic volume and decreases for ejection fraction and fractional shortening. These data suggest that exposure to peat smoke constituents modulates regulation of ventricular ejection and filling volumes, which could be related to altered blood flow in the pulmonary circulation. Moreover, early pulmonary responses to peat smoke PM point to irritant/autonomic mechanisms as potential drivers of later cardiovascular responses.
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Affiliation(s)
- Leslie C Thompson
- a US Environmental Protection Agency, Environmental Public Health Division , Durham , NC , USA
| | - Yong Ho Kim
- a US Environmental Protection Agency, Environmental Public Health Division , Durham , NC , USA.,b National Research Council , Washington , DC , USA
| | - Brandi L Martin
- c Oak Ridge Institute for Science and Education , Oak Ridge , TN , USA
| | - Allen D Ledbetter
- a US Environmental Protection Agency, Environmental Public Health Division , Durham , NC , USA
| | - Janice A Dye
- a US Environmental Protection Agency, Environmental Public Health Division , Durham , NC , USA
| | - Mehdi S Hazari
- a US Environmental Protection Agency, Environmental Public Health Division , Durham , NC , USA
| | - M Ian Gilmour
- a US Environmental Protection Agency, Environmental Public Health Division , Durham , NC , USA
| | - Aimen K Farraj
- a US Environmental Protection Agency, Environmental Public Health Division , Durham , NC , USA
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Wei Y, Cao XN, Tang XL, Shen LJ, Lin T, He DW, Wu SD, Wei GH. Urban fine particulate matter (PM2.5) exposure destroys blood–testis barrier (BTB) integrity through excessive ROS-mediated autophagy. Toxicol Mech Methods 2017; 28:302-319. [PMID: 29179619 DOI: 10.1080/15376516.2017.1410743] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yi Wei
- Department of Urology, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Child Urogenital Development and Tissue Engineering, Chongqing, China
- Chongqing Key Laboratory of Pediatrics Chongqing, Chongqing, China
| | - Xi-Ning Cao
- Chongqing Key Laboratory of Child Urogenital Development and Tissue Engineering, Chongqing, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
| | - Xiang-Liang Tang
- Department of Urology, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Child Urogenital Development and Tissue Engineering, Chongqing, China
| | - Lian-Ju Shen
- Department of Urology, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Child Urogenital Development and Tissue Engineering, Chongqing, China
- Chongqing Key Laboratory of Pediatrics Chongqing, Chongqing, China
| | - Tao Lin
- Department of Urology, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
| | - Da-Wei He
- Department of Urology, Children’s Hospital of Chongqing Medical University, Chongqing, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, China
| | - Sheng-De Wu
- Department of Urology, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Child Urogenital Development and Tissue Engineering, Chongqing, China
| | - Guang-Hui Wei
- Department of Urology, Children’s Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Child Urogenital Development and Tissue Engineering, Chongqing, China
- Chongqing Key Laboratory of Pediatrics Chongqing, Chongqing, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
- China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing, China
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