1
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Grytting VS, Skuland T, Ballangby J, Refsnes M, Låg M, Øvrevik J, Mariussen E. The effects of fine particulate matter (SRM 2786) on three different 3D lung models exposed at the air-liquid interface - A comparative study. Toxicol In Vitro 2024; 98:105841. [PMID: 38729454 DOI: 10.1016/j.tiv.2024.105841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 04/17/2024] [Accepted: 05/06/2024] [Indexed: 05/12/2024]
Abstract
3D cell culture models exposed at the air-liquid interface (ALI) represent a potential alternative to animal experiments for hazard and risk assessment of inhaled compounds. This study compares cocultures composed of either Calu-3, A549 or HBEC3-KT lung epithelial cells, cultured together with THP-1-derived macrophages and EA.hy926 endothelial cells, in terms of barrier capacity and responses to a standard reference sample of fine particulate matter (SRM 2786). High-content imaging analysis revealed a similar cellular composition between the different cell models. The 3D cell cultures with Calu-3 cells showed the greatest barrier capacity, as measured by transepithelial electrical resistance and permeability to Na-fluorescein. Mucus production was detected in 3D cell cultures based on Calu-3 and A549 cells. Exposure to SRM 2786 at ALI increased cytokine release and expression of genes associated with inflammation and xenobiotic metabolism. Moreover, the presence of THP-1-derived macrophages was central to the cytokine responses in all cell models. While the different 3D cell culture models produced qualitatively similar responses, more pronounced pro-inflammatory responses were observed in the basolateral compartment of the A549 and HBEC3-KT models compared to the Calu-3 model, likely due to their reduced barrier capacity and lower retention of secreted mediators in the apical compartment.
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Affiliation(s)
- Vegard Sæter Grytting
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway.
| | - Tonje Skuland
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway
| | - Jarle Ballangby
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway
| | - Magne Refsnes
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway
| | - Marit Låg
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway
| | - Johan Øvrevik
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway; Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo, PO Box 1066 Blindern, 0316 Oslo, Norway
| | - Espen Mariussen
- Department of Air quality and Noise, Division of Climate and Environmental Health, Norwegian Institute of Public Health, PO Box 222, Skøyen, Oslo 0213, Norway.
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2
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Fitzpatrick PA, Johansson J, Maglennon G, Wallace I, Hendrickx R, Stamou M, Balogh Sivars K, Busch S, Johansson L, Van Zuydam N, Patten K, Åberg PM, Ollerstam A, Hornberg JJ. A novel in vitro high-content imaging assay for the prediction of drug-induced lung toxicity. Arch Toxicol 2024:10.1007/s00204-024-03800-8. [PMID: 38806719 DOI: 10.1007/s00204-024-03800-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 05/23/2024] [Indexed: 05/30/2024]
Abstract
The development of inhaled drugs for respiratory diseases is frequently impacted by lung pathology in non-clinical safety studies. To enable design of novel candidate drugs with the right safety profile, predictive in vitro lung toxicity assays are required that can be applied during drug discovery for early hazard identification and mitigation. Here, we describe a novel high-content imaging-based screening assay that allows for quantification of the tight junction protein occludin in A549 cells, as a model for lung epithelial barrier integrity. We assessed a set of compounds with a known lung safety profile, defined by clinical safety or non-clinical in vivo toxicology data, and were able to correctly identify 9 of 10 compounds with a respiratory safety risk and 9 of 9 compounds without a respiratory safety risk (90% sensitivity, 100% specificity). The assay was sensitive at relevant compound concentrations to influence medicinal chemistry optimization programs and, with an accessible cell model in a 96-well plate format, short protocol and application of automated imaging analysis algorithms, this assay can be readily integrated in routine discovery safety screening to identify and mitigate respiratory toxicity early during drug discovery. Interestingly, when we applied physiologically-based pharmacokinetic (PBPK) modelling to predict epithelial lining fluid exposures of the respiratory tract after inhalation, we found a robust correlation between in vitro occludin assay data and lung pathology in vivo, suggesting the assay can inform translational risk assessment for inhaled small molecules.
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Affiliation(s)
- Paul A Fitzpatrick
- Safety Sciences, Clinical Pharmacology and Safety Sciences, R and D, AstraZeneca, Gothenburg, Sweden.
| | - Julia Johansson
- Safety Sciences, Clinical Pharmacology and Safety Sciences, R and D, AstraZeneca, Gothenburg, Sweden
| | - Gareth Maglennon
- AstraZeneca Pathology, Clinical Pharmacology and Safety Sciences, R and D, AstraZeneca, Cambridge, UK
| | - Ian Wallace
- Safety Sciences, Clinical Pharmacology and Safety Sciences, R and D, AstraZeneca, Gothenburg, Sweden
| | - Ramon Hendrickx
- Drug Metabolism and Pharmacokinetics, Research and Early Development, Respiratory and Immunology (R and I), R and D, AstraZeneca, Gothenburg, Sweden
| | - Marianna Stamou
- Safety Sciences, Clinical Pharmacology and Safety Sciences, R and D, AstraZeneca, Gothenburg, Sweden
| | - Kinga Balogh Sivars
- Safety Sciences, Clinical Pharmacology and Safety Sciences, R and D, AstraZeneca, Gothenburg, Sweden
| | - Susann Busch
- Safety Sciences, Clinical Pharmacology and Safety Sciences, R and D, AstraZeneca, Gothenburg, Sweden
| | - Linnea Johansson
- Safety Sciences, Clinical Pharmacology and Safety Sciences, R and D, AstraZeneca, Gothenburg, Sweden
| | - Natalie Van Zuydam
- Data Sciences and Quantitative Biology, Discovery Sciences, R and D, AstraZeneca, Gothenburg, Sweden
| | - Kelley Patten
- Safety Sciences, Clinical Pharmacology and Safety Sciences, R and D, AstraZeneca, Gothenburg, Sweden
| | - Per M Åberg
- Safety Sciences, Clinical Pharmacology and Safety Sciences, R and D, AstraZeneca, Gothenburg, Sweden
| | - Anna Ollerstam
- Safety Sciences, Clinical Pharmacology and Safety Sciences, R and D, AstraZeneca, Gothenburg, Sweden
| | - Jorrit J Hornberg
- Safety Sciences, Clinical Pharmacology and Safety Sciences, R and D, AstraZeneca, Gothenburg, Sweden
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3
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Dichtl S, Posch W, Wilflingseder D. The breathtaking world of human respiratory in vitro models: Investigating lung diseases and infections in 3D models, organoids, and lung-on-chip. Eur J Immunol 2024; 54:e2250356. [PMID: 38361030 DOI: 10.1002/eji.202250356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 02/17/2024]
Abstract
The COVID-19 pandemic illustrated an urgent need for sophisticated, human tissue models to rapidly test and develop effective treatment options against this newly emerging severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Thus, in particular, the last 3 years faced an extensive boost in respiratory and pulmonary model development. Nowadays, 3D models, organoids and lung-on-chip, respiratory models in perfusion, or precision-cut lung slices are used to study complex research questions in human primary cells. These models provide physiologically relevant systems for studying SARS-CoV-2 and, of course, other respiratory pathogens, but they are, too, suited for studying lung pathologies, such as CF, chronic obstructive pulmonary disease, or asthma, in more detail in terms of viral infection. With these models, the cornerstone has been laid for further advancing the organs by, for example, inclusion of several immune cell types or humoral immune components, combination with other organs in microfluidic organ-on-chip devices, standardization and harmonization of the devices for reliable and reproducible drug and vaccine testing in high throughput.
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Affiliation(s)
- Stefanie Dichtl
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Wilfried Posch
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Doris Wilflingseder
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
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4
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Tulen CBM, van de Wetering C, Schiffers CHJ, Weltjens E, Benedikter BJ, Leermakers PA, Boukhaled JH, Drittij MJ, Schmeck BT, Reynaert NL, Opperhuizen A, van Schooten FJ, Remels AHV. Alterations in the molecular control of mitochondrial turnover in COPD lung and airway epithelial cells. Sci Rep 2024; 14:4821. [PMID: 38413800 PMCID: PMC10899608 DOI: 10.1038/s41598-024-55335-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 02/22/2024] [Indexed: 02/29/2024] Open
Abstract
Abnormal mitochondria have been observed in bronchial- and alveolar epithelial cells of patients with chronic obstructive pulmonary disease (COPD). However, it is unknown if alterations in the molecular pathways regulating mitochondrial turnover (mitochondrial biogenesis vs mitophagy) are involved. Therefore, in this study, the abundance of key molecules controlling mitochondrial turnover were assessed in peripheral lung tissue from non-COPD patients (n = 6) and COPD patients (n = 11; GOLDII n = 4/11; GOLDIV n = 7/11) and in both undifferentiated and differentiated human primary bronchial epithelial cells (PBEC) from non-COPD patients and COPD patients (n = 4-7 patients/group). We observed significantly decreased transcript levels of key molecules controlling mitochondrial biogenesis (PPARGC1B, PPRC1, PPARD) in peripheral lung tissue from severe COPD patients. Interestingly, mRNA levels of the transcription factor TFAM (mitochondrial biogenesis) and BNIP3L (mitophagy) were increased in these patients. In general, these alterations were not recapitulated in undifferentiated and differentiated PBECs with the exception of decreased PPARGC1B expression in both PBEC models. Although these findings provide valuable insight in these pathways in bronchial epithelial cells and peripheral lung tissue of COPD patients, whether or not these alterations contribute to COPD pathogenesis, underlie changes in mitochondrial function or may represent compensatory mechanisms remains to be established.
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Affiliation(s)
- Christy B M Tulen
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, Universiteitssingel 50, 6629 ER, Maastricht, The Netherlands
| | - Cheryl van de Wetering
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Respiratory Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Caspar H J Schiffers
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Respiratory Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Ellen Weltjens
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, Universiteitssingel 50, 6629 ER, Maastricht, The Netherlands
| | - Birke J Benedikter
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Microbiology, Maastricht University Medical Center, Maastricht, The Netherlands
- Institute for Lung Research, Philipps-University Marburg, Marburg, Germany
- Member of the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center, Giessen, Germany
| | - Pieter A Leermakers
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, Universiteitssingel 50, 6629 ER, Maastricht, The Netherlands
| | - Juliana H Boukhaled
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, Universiteitssingel 50, 6629 ER, Maastricht, The Netherlands
| | - Marie-José Drittij
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, Universiteitssingel 50, 6629 ER, Maastricht, The Netherlands
| | - Bernd T Schmeck
- Institute for Lung Research, Philipps-University Marburg, Marburg, Germany
- Department for Respiratory and Critical Care Medicine, Clinic for Respiratory Infections, University Medical Center Marburg, Marburg, Germany
- German Centers for Lung Research (DZL) and for Infectious Disease Research (DZIF), SYNMIKRO Center for Synthetic Microbiology, Philipps-University Marburg, 35037, Marburg, Germany
- Member of the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center, Giessen, Germany
| | - Niki L Reynaert
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Respiratory Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
- Primary Lung Culture (PLUC) Facility, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Antoon Opperhuizen
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, Universiteitssingel 50, 6629 ER, Maastricht, The Netherlands
- Office of Risk Assessment and Research, Netherlands Food and Consumer Product Safety Authority (NVWA), Utrecht, The Netherlands
| | - Frederik-Jan van Schooten
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, Universiteitssingel 50, 6629 ER, Maastricht, The Netherlands
| | - Alexander H V Remels
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, Universiteitssingel 50, 6629 ER, Maastricht, The Netherlands.
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5
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Jaber N, Billet S. How to use an in vitro approach to characterize the toxicity of airborne compounds. Toxicol In Vitro 2024; 94:105718. [PMID: 37871865 DOI: 10.1016/j.tiv.2023.105718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/13/2023] [Accepted: 09/21/2023] [Indexed: 10/25/2023]
Abstract
As part of the development of new approach methodologies (NAMs), numerous in vitro methods are being developed to characterize the potential toxicity of inhalable xenobiotics (gases, volatile organic compounds, polycyclic aromatic hydrocarbons, particulate matter, nanoparticles). However, the materials and methods employed are extremely diverse, and no single method is currently in use. Method standardization and validation would raise trust in the results and enable them to be compared. This four-part review lists and compares biological models and exposure methodologies before describing measurable biomarkers of exposure or effect. The first section emphasizes the importance of developing alternative methods to reduce, if not replace, animal testing (3R principle). The biological models presented are mostly to cultures of epithelial cells from the respiratory system, as the lungs are the first organ to come into contact with air pollutants. Monocultures or cocultures of primary cells or cell lines, as well as 3D organotypic cultures such as organoids, spheroids and reconstituted tissues, but also the organ(s) model on a chip are examples. The exposure methods for these biological models applicable to airborne compounds are submerged, intermittent, continuous either static or dynamic. Finally, within the restrictions of these models (i.e. relative tiny quantities, adhering cells), the mechanisms of toxicity and the phenotypic markers most commonly examined in models exposed at the air-liquid interface (ALI) are outlined.
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Affiliation(s)
- Nour Jaber
- UR4492, Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, Dunkerque, France
| | - Sylvain Billet
- UR4492, Unité de Chimie Environnementale et Interactions sur le Vivant, Université du Littoral Côte d'Opale, Dunkerque, France.
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6
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Mallek NM, Martin EM, Dailey LA, McCullough SD. Liquid application dosing alters the physiology of air-liquid interface (ALI) primary human bronchial epithelial cell/lung fibroblast co-cultures and in vitro testing relevant endpoints. FRONTIERS IN TOXICOLOGY 2024; 5:1264331. [PMID: 38464699 PMCID: PMC10922929 DOI: 10.3389/ftox.2023.1264331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 12/14/2023] [Indexed: 03/12/2024] Open
Abstract
Differentiated primary human bronchial epithelial cell (dpHBEC) cultures grown under air-liquid interface (ALI) conditions exhibit key features of the human respiratory tract and are thus critical for respiratory research as well as efficacy and toxicity testing of inhaled substances (e.g., consumer products, industrial chemicals, and pharmaceuticals). Many inhalable substances (e.g., particles, aerosols, hydrophobic substances, reactive substances) have physiochemical properties that challenge their evaluation under ALI conditions in vitro. Evaluation of the effects of these methodologically challenging chemicals (MCCs) in vitro is typically conducted by "liquid application," involving the direct application of a solution containing the test substance to the apical, air-exposed surface of dpHBEC-ALI cultures. We report that the application of liquid to the apical surface of a dpHBEC-ALI co-culture model results in significant reprogramming of the dpHBEC transcriptome and biological pathway activity, alternative regulation of cellular signaling pathways, increased secretion of pro-inflammatory cytokines and growth factors, and decreased epithelial barrier integrity. Given the prevalence of liquid application in the delivery of test substances to ALI systems, understanding its effects provides critical infrastructure for the use of in vitro systems in respiratory research as well as in the safety and efficacy testing of inhalable substances.
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Affiliation(s)
- Nicholas M. Mallek
- Curriculum in Toxicology and Environmental Medicine, University of North Carolina, Chapel Hill, NC, United States
| | - Elizabeth M. Martin
- Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Durham, NC, United States
| | - Lisa A. Dailey
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, Chapel Hill, NC, United States
| | - Shaun D. McCullough
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, Chapel Hill, NC, United States
- Exposure and Protection, RTI International, Durham, NC, United States
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7
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Dai J, Xu D, Yang C, Wang H, Chen D, Lin Z, Qiu S, Zhang L, Li X, Tian X, Liu Q, Cui Y, Zhou R, Liu W. Severe pneumonia and pathogenic damage in human airway epithelium caused by Coxsackievirus B4. Emerg Microbes Infect 2023; 12:2261560. [PMID: 37725516 PMCID: PMC10538465 DOI: 10.1080/22221751.2023.2261560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 09/17/2023] [Indexed: 09/21/2023]
Abstract
Coxsackievirus B4 (CVB4) has one of the highest proportions of fatal outcomes of other enterovirus serotypes. However, the pathogenesis of severe respiratory disease caused by CVB4 infection remains unclear. In this study, 3 of 42 (7.2%, GZ-R6, GZ-R7 and GZ-R8) patients with severe pneumonia tested positive for CVB4 infection in southern China. Three full-length genomes of pneumonia-derived CVB4 were sequenced and annotated for the first time, showing their high nucleotide similarity and clustering within genotype V. To analyze the pathogenic damage caused by CVB4 in the lungs, a well-differentiated human airway epithelium (HAE) was established and infected with the pneumonia-derived CVB4 isolate GZ-R6. The outcome was compared with that of a severe hand-foot-mouth disease (HFMD)-derived CVB4 strain GZ-HFM01. Compared with HFMD-derived CVB4, pneumonia-derived CVB4 caused more intense and rapid disruption of HAE polarity, leading to tight-junction barrier disruption, loss of cilia, and airway epithelial cell hypertrophy. More pneumonia-derived CVB4 were released from the basolateral side of the HAE than HFMD-derived CVB4. Of the 18 cytokines tested, only IL-6 and IL-1b secretion significantly increased on bilateral sides of HAE during the early stage of pneumonia-derived CVB4 infection, while multiple cytokine secretions significantly increased in HFMD-derived CVB4-infected HAE. HFMD-derived CVB4 exhibited stronger neurovirulence in the human neuroblastoma cells SH-SY5Y than pneumonia-derived CVB4, which is consistent with the clinical manifestations of patients infected with these two viruses. This study has increased the depth of our knowledge of severe pneumonia infection caused by CVB4 and will benefit its prevention and treatment.
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Affiliation(s)
- Jing Dai
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Duo Xu
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Chao Yang
- The Center for Microbes, Development and Health, CAS Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, People’s Republic of China
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, People’s Republic of China
| | - Huan Wang
- Scientific Research Center, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Dehui Chen
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Zhengshi Lin
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Shuyan Qiu
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Li Zhang
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Xiao Li
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Xingui Tian
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Qian Liu
- Scientific Research Center, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Yujun Cui
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, People’s Republic of China
| | - Rong Zhou
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, People’s Republic of China
| | - Wenkuan Liu
- State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou Medical University, Guangzhou, People’s Republic of China
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8
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del Giudice G, Migliaccio G, D’Alessandro N, Saarimäki LA, Torres Maia M, Annala ME, Leppänen J, Mӧbus L, Pavel A, Vaani M, Vallius A, Ylä‐Outinen L, Greco D, Serra A. Advancing chemical safety assessment through an omics-based characterization of the test system-chemical interaction. FRONTIERS IN TOXICOLOGY 2023; 5:1294780. [PMID: 38026842 PMCID: PMC10673692 DOI: 10.3389/ftox.2023.1294780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
Assessing chemical safety is essential to evaluate the potential risks of chemical exposure to human health and the environment. Traditional methods relying on animal testing are being replaced by 3R (reduction, refinement, and replacement) principle-based alternatives, mainly depending on in vitro test methods and the Adverse Outcome Pathway framework. However, these approaches often focus on the properties of the compound, missing the broader chemical-biological interaction perspective. Currently, the lack of comprehensive molecular characterization of the in vitro test system results in limited real-world representation and contextualization of the toxicological effect under study. Leveraging omics data strengthens the understanding of the responses of different biological systems, emphasizing holistic chemical-biological interactions when developing in vitro methods. Here, we discuss the relevance of meticulous test system characterization on two safety assessment relevant scenarios and how omics-based, data-driven approaches can improve the future generation of alternative methods.
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Affiliation(s)
- Giusy del Giudice
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Giorgia Migliaccio
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
| | - Nicoletta D’Alessandro
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
| | - Laura Aliisa Saarimäki
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Marcella Torres Maia
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
| | - Maria Emilia Annala
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
| | - Jenni Leppänen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
| | - Lena Mӧbus
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
| | - Alisa Pavel
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
| | - Maaret Vaani
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
| | - Anna Vallius
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
| | - Laura Ylä‐Outinen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
| | - Dario Greco
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Angela Serra
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Tampere, Finland
- BioMediTech Unit, Tampere University, Tampere, Finland
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
- Tampere Institute for Advanced Study, Tampere University, Tampere, Finland
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9
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Van den Bossche S, Ostyn L, Vandendriessche V, Rigauts C, De Keersmaecker H, Nickerson CA, Crabbé A. The development and characterization of in vivo-like three-dimensional models of bronchial epithelial cell lines. Eur J Pharm Sci 2023; 190:106567. [PMID: 37633341 DOI: 10.1016/j.ejps.2023.106567] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/16/2023] [Accepted: 08/18/2023] [Indexed: 08/28/2023]
Abstract
In vitro models of differentiated respiratory epithelium that allow high-throughput screening are an important tool to explore new therapeutics for chronic respiratory diseases. In the present study, we developed in vivo-like three-dimensional (3-D) models of bronchial epithelial cell lines that are commonly used to study chronic lung disease (16HBE14o-, CFBE41o- and CFBE41o- 6.2 WT-CFTR). To this end, cells were cultured on porous microcarrier beads in the rotating wall vessel (RWV) bioreactor, an optimized suspension culture method that allows higher throughput experimentation than other physiologically relevant models. Cell differentiation was compared to conventional two-dimensional (2-D) monolayer cultures and to the current gold standard in the respiratory field, i.e. air-liquid interface (ALI) cultures. Cellular differentiation was assessed in the three model systems by evaluating the expression and localization of markers that reflect the formation of tight junctions (zonula occludens 1), cell polarity (intercellular adhesion molecule 1 at the apical side and collagen IV expression at the basal cell side), multicellular complexity (acetylated α-tubulin for ciliated cells, CC10 for club cells, keratin-5 for basal cells) and mucus production (MUC5AC) through immunostaining and confocal laser scanning microscopy. Results were validated using Western Blot analysis. We found that tight junctions were expressed in 2-D monolayers, ALI cultures and 3-D models for all three cell lines. All tested bronchial epithelial cell lines showed polarization in ALI and 3-D cultures, but not in 2-D monolayers. Mucus secreting goblet-like cells were present in ALI and 3-D cultures of CFBE41o- and CFBE41o- 6.2 WT-CFTR cells, but not in 16HBE14o- cells. For all cell lines, there were no ciliated cells, basal cells, or club cells found in any of the model systems. In conclusion, we developed RWV-derived 3-D models of commonly used bronchial epithelial cell lines and showed that these models are a valuable alternative to ALI cultures, as they recapitulate similar key aspects of the in vivo parental tissue.
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Affiliation(s)
- Sara Van den Bossche
- Laboratory of Pharmaceutical Microbiology, Ghent University, Ottergemsesteenweg 460, Ghent 9000, Belgium
| | - Lisa Ostyn
- Laboratory of Pharmaceutical Microbiology, Ghent University, Ottergemsesteenweg 460, Ghent 9000, Belgium
| | - Valerie Vandendriessche
- Laboratory of Pharmaceutical Microbiology, Ghent University, Ottergemsesteenweg 460, Ghent 9000, Belgium
| | - Charlotte Rigauts
- Laboratory of Pharmaceutical Microbiology, Ghent University, Ottergemsesteenweg 460, Ghent 9000, Belgium
| | - Herlinde De Keersmaecker
- Centre of Advanced Light Microscopy, Ghent University, Ottergemsesteenweg 460, Ghent 9000, Belgium; Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmacy, Ghent University, Ottergemsesteenweg 460, Ghent 9000, Belgium
| | - Cheryl A Nickerson
- School of Life Sciences, Biodesign Center for Fundamental and Applied Microbiomics, Biodesign Institute, Arizona State University, 727 E. Tyler Street, Tempe, Arizona 85281, USA
| | - Aurélie Crabbé
- Laboratory of Pharmaceutical Microbiology, Ghent University, Ottergemsesteenweg 460, Ghent 9000, Belgium.
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10
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Nashihah AK, Muhammad Firdaus FI, Fauzi MB, Mobarak NN, Lokanathan Y. Role of Biomaterials in the Development of Epithelial Support in 3D In Vitro Airway Epithelium Development: A Systematic Review. Int J Mol Sci 2023; 24:14935. [PMID: 37834382 PMCID: PMC10573735 DOI: 10.3390/ijms241914935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/02/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023] Open
Abstract
Respiratory diseases have a major impact on global health. The airway epithelium, which acts as a frontline defence, is one of the most common targets for inhaled allergens, irritants, or micro-organisms to enter the respiratory system. In the tissue engineering field, biomaterials play a crucial role. Due to the continuing high impact of respiratory diseases on society and the emergence of new respiratory viruses, in vitro airway epithelial models with high microphysiological similarities that are also easily adjustable to replicate disease models are urgently needed to better understand those diseases. Thus, the development of biomaterial scaffolds for the airway epithelium is important due to their function as a cell-support device in which cells are seeded in vitro and then are encouraged to lay down a matrix to form the foundations of a tissue for transplantation. Studies conducted in in vitro models are necessary because they accelerate the development of new treatments. Moreover, in comparatively controlled conditions, in vitro models allow for the stimulation of complex interactions between cells, scaffolds, and growth factors. Based on recent studies, the biomaterial scaffolds that have been tested in in vitro models appear to be viable options for repairing the airway epithelium and avoiding any complications. This review discusses the role of biomaterial scaffolds in in vitro airway epithelium models. The effects of scaffold, physicochemical, and mechanical properties in recent studies were also discussed.
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Affiliation(s)
- Ab Karim Nashihah
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia (F.I.M.F.); (M.B.F.)
| | - Fairuz Izan Muhammad Firdaus
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia (F.I.M.F.); (M.B.F.)
| | - Mh. Busra Fauzi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia (F.I.M.F.); (M.B.F.)
| | - Nadhratun Naiim Mobarak
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia UKM, Bangi 43600, Malaysia;
| | - Yogeswaran Lokanathan
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia (F.I.M.F.); (M.B.F.)
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11
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Barclay AM, Ninaber DK, van Veen S, Hiemstra PS, Ottenhoff THM, van der Does AM, Joosten SA. Airway epithelial cells mount an early response to mycobacterial infection. Front Cell Infect Microbiol 2023; 13:1253037. [PMID: 37822359 PMCID: PMC10562574 DOI: 10.3389/fcimb.2023.1253037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 08/31/2023] [Indexed: 10/13/2023] Open
Abstract
Lung epithelial cells represent the first line of host defence against foreign inhaled components, including respiratory pathogens. Their responses to these exposures may direct subsequent immune activation to these pathogens. The epithelial response to mycobacterial infections is not well characterized and may provide clues to why some mycobacterial infections are cleared, while others are persistent and pathogenic. We have utilized an air-liquid interface model of human primary bronchial epithelial cells (ALI-PBEC) to investigate the epithelial response to infection with a variety of mycobacteria: Mycobacterium tuberculosis (Mtb), M. bovis (BCG), M. avium, and M. smegmatis. Airway epithelial cells were found to be infected by all four species, albeit at low frequencies. The proportion of infected epithelial cells was lowest for Mtb and highest for M. avium. Differential gene expression analysis revealed a common epithelial host response to mycobacteria, including upregulation of BIRC3, S100A8 and DEFB4, and downregulation of BPIFB1 at 48 h post infection. Apical secretions contained predominantly pro-inflammatory cytokines, while basal secretions contained tissue growth factors and chemokines. Finally, we show that neutrophils were attracted to both apical and basal secretions of infected ALI-PBEC. Neutrophils were attracted in high numbers to apical secretions from PBEC infected with all mycobacteria, with the exception of secretions from M. avium-infected ALI-PBEC. Taken together, our results show that airway epithelial cells are differentially infected by mycobacteria, and react rapidly by upregulation of antimicrobials, and increased secretion of inflammatory cytokines and chemokines which directly attract neutrophils. Thus, the airway epithelium may be an important immunological component in controlling and regulating mycobacterial infections.
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Affiliation(s)
- Amy M. Barclay
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Dennis K. Ninaber
- Department of Pulmonology, Leiden University Medical Center, Leiden, Netherlands
| | - Suzanne van Veen
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Pieter S. Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden, Netherlands
| | - Tom H. M. Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Anne M. van der Does
- Department of Pulmonology, Leiden University Medical Center, Leiden, Netherlands
| | - Simone A. Joosten
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
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12
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Ventura C, Pinto F, Lourenço AF, Pedrosa JFS, Fernandes SN, da Rosa RR, Godinho MH, Ferreira PJT, Louro H, Silva MJ. Assessing the Genotoxicity of Cellulose Nanomaterials in a Co-Culture of Human Lung Epithelial Cells and Monocyte-Derived Macrophages. Bioengineering (Basel) 2023; 10:986. [PMID: 37627871 PMCID: PMC10452089 DOI: 10.3390/bioengineering10080986] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Cellulose micro/nanomaterials (CMNMs) are innovative materials with a wide spectrum of industrial and biomedical applications. Although cellulose has been recognized as a safe material, the unique properties of its nanosized forms have raised concerns about their safety for human health. Genotoxicity is an endpoint that must be assessed to ensure that no carcinogenic risks are associated with exposure to nanomaterials. In this study, we evaluated the genotoxicity of two types of cellulose micro/nanofibrils (CMF and CNF) and one sample of cellulose nanocrystals (CNC), obtained from industrial bleached Eucalyptus globulus kraft pulp. For that, we exposed co-cultures of human alveolar epithelial A549 cells and THP-1 monocyte-derived macrophages to a concentration range of each CMNM and used the micronucleus (MN) and comet assays. Our results showed that only the lowest concentrations of the CMF sample were able to induce DNA strand breaks (FPG-comet assay). However, none of the three CMNMs produced significant chromosomal alterations (MN assay). These findings, together with results from previous in vitro studies using monocultures of A549 cells, indicate that the tested CNF and CNC are not genotoxic under the conditions tested, while the CMF display a low genotoxic potential.
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Affiliation(s)
- Célia Ventura
- Department of Human Genetics, Instituto Nacional de Saúde Doutor Ricardo Jorge, Av Padre Cruz, 1649-016 Lisbon, Portugal; (C.V.); (F.P.); (H.L.)
- ToxOmics—Centre for Toxicogenomics and Human Health, NOVA Medical School, NOVA University Lisbon, 1169-056 Lisbon, Portugal
| | - Fátima Pinto
- Department of Human Genetics, Instituto Nacional de Saúde Doutor Ricardo Jorge, Av Padre Cruz, 1649-016 Lisbon, Portugal; (C.V.); (F.P.); (H.L.)
- ToxOmics—Centre for Toxicogenomics and Human Health, NOVA Medical School, NOVA University Lisbon, 1169-056 Lisbon, Portugal
| | | | - Jorge F. S. Pedrosa
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Pólo II, R. Sílvio Lima, 3030-790 Coimbra, Portugal; (J.F.S.P.); (P.J.T.F.)
| | - Susete N. Fernandes
- i3N/CENIMAT, Department of Materials Science, NOVA School of Science and Technology, NOVA University Lisbon, Campus de Caparica, 2829-516 Lisbon, Portugal; (S.N.F.); (R.R.d.R.); (M.H.G.)
| | - Rafaela R. da Rosa
- i3N/CENIMAT, Department of Materials Science, NOVA School of Science and Technology, NOVA University Lisbon, Campus de Caparica, 2829-516 Lisbon, Portugal; (S.N.F.); (R.R.d.R.); (M.H.G.)
| | - Maria Helena Godinho
- i3N/CENIMAT, Department of Materials Science, NOVA School of Science and Technology, NOVA University Lisbon, Campus de Caparica, 2829-516 Lisbon, Portugal; (S.N.F.); (R.R.d.R.); (M.H.G.)
| | - Paulo J. T. Ferreira
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Pólo II, R. Sílvio Lima, 3030-790 Coimbra, Portugal; (J.F.S.P.); (P.J.T.F.)
| | - Henriqueta Louro
- Department of Human Genetics, Instituto Nacional de Saúde Doutor Ricardo Jorge, Av Padre Cruz, 1649-016 Lisbon, Portugal; (C.V.); (F.P.); (H.L.)
- ToxOmics—Centre for Toxicogenomics and Human Health, NOVA Medical School, NOVA University Lisbon, 1169-056 Lisbon, Portugal
| | - Maria João Silva
- Department of Human Genetics, Instituto Nacional de Saúde Doutor Ricardo Jorge, Av Padre Cruz, 1649-016 Lisbon, Portugal; (C.V.); (F.P.); (H.L.)
- ToxOmics—Centre for Toxicogenomics and Human Health, NOVA Medical School, NOVA University Lisbon, 1169-056 Lisbon, Portugal
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13
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Brandão F, Costa C, Bessa MJ, Valdiglesias V, Hellack B, Haase A, Fraga S, Teixeira JP. Multiparametric in vitro genotoxicity assessment of different variants of amorphous silica nanomaterials in rat alveolar epithelial cells. Nanotoxicology 2023; 17:511-528. [PMID: 37855675 DOI: 10.1080/17435390.2023.2265481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 09/20/2023] [Indexed: 10/20/2023]
Abstract
The hazard posed to human health by inhaled amorphous silica nanomaterials (aSiO2 NM) remains uncertain. Herein, we assessed the cyto- and genotoxicity of aSiO2 NM variants covering different sizes (7, 15, and 40 nm) and surface modifications (unmodified, phosphonate-, amino- and trimethylsilyl-modified) on rat alveolar epithelial (RLE-6TN) cells. Cytotoxicity was evaluated at 24 h after exposure to the aSiO2 NM variants by the lactate dehydrogenase (LDH) release and WST-1 reduction assays, while genotoxicity was assessed using different endpoints: DNA damage (single- and double-strand breaks [SSB and DSB]) by the comet assay for all aSiO2 NM variants; cell cycle progression and γ-H2AX levels (DSB) by flow cytometry for those variants that presented higher cytotoxic and DNA damaging potential. The variants with higher surface area demonstrated a higher cytotoxic potential (SiO2_7, SiO2_15_Unmod, SiO2_15_Amino, and SiO2_15_Phospho). SiO2_40 was the only variant that induced significant DNA damage on RLE-6TN cells. On the other hand, all tested variants (SiO2_7, SiO2_15_Unmod, SiO2_15_Amino, and SiO2_40) significantly increased total γ-H2AX levels. At high concentrations (28 µg/cm2), a decrease in G0/G1 subpopulation was accompanied by a significant increase in S and G2/M sub-populations after exposure to all tested materials except for SiO2_40 which did not affect cell cycle progression. Based on the obtained data, the tested variants can be ranked for its genotoxic DNA damage potential as follows: SiO2_7 = SiO2_40 = SiO2_15_Unmod > SiO2_15_Amino. Our study supports the usefulness of multiparametric approaches to improve the understanding on NM mechanisms of action and hazard prediction.
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Affiliation(s)
- Fátima Brandão
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
- EPIUnit-Institute of Public Health, University of Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Carla Costa
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
- EPIUnit-Institute of Public Health, University of Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
| | - Maria João Bessa
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
- EPIUnit-Institute of Public Health, University of Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Vanessa Valdiglesias
- Departamento de Biología, Universidade da Coruña, Grupo NanoToxGen, Centro Interdisciplinar de Química e Bioloxía - CICA, A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
| | - Bryan Hellack
- Institute of Energy and Environmental Technology (IUTA) e.V, Duisburg, Germany
- German Environment Agency (UBA), Dessau, Germany
| | - Andrea Haase
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Sónia Fraga
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
- EPIUnit-Institute of Public Health, University of Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
- Department of Biomedicine, Unit of Pharmacology and Therapeutics, Faculty of Medicine, University of Porto, Porto, Portugal
| | - João Paulo Teixeira
- Department of Environmental Health, National Institute of Health Dr. Ricardo Jorge, Porto, Portugal
- EPIUnit-Institute of Public Health, University of Porto, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health (ITR), Porto, Portugal
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14
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Braakhuis HM, Gremmer ER, Bannuscher A, Drasler B, Keshavan S, Rothen-Rutishauser B, Birk B, Verlohner A, Landsiedel R, Meldrum K, Doak SH, Clift MJD, Erdem JS, Foss OAH, Zienolddiny-Narui S, Serchi T, Moschini E, Weber P, Burla S, Kumar P, Schmid O, Zwart E, Vermeulen JP, Vandebriel RJ. Transferability and reproducibility of exposed air-liquid interface co-culture lung models. NANOIMPACT 2023; 31:100466. [PMID: 37209722 DOI: 10.1016/j.impact.2023.100466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 04/03/2023] [Accepted: 05/03/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND The establishment of reliable and robust in vitro models for hazard assessment, a prerequisite for moving away from animal testing, requires the evaluation of model transferability and reproducibility. Lung models that can be exposed via the air, by means of an air-liquid interface (ALI) are promising in vitro models for evaluating the safety of nanomaterials (NMs) after inhalation exposure. We performed an inter-laboratory comparison study to evaluate the transferability and reproducibility of a lung model consisting of the human bronchial cell line Calu-3 as a monoculture and, to increase the physiologic relevance of the model, also as a co-culture with macrophages (either derived from the THP-1 monocyte cell line or from human blood monocytes). The lung model was exposed to NMs using the VITROCELL® Cloud12 system at physiologically relevant dose levels. RESULTS Overall, the results of the 7 participating laboratories are quite similar. After exposing Calu-3 alone and Calu-3 co-cultures with macrophages, no effects of lipopolysaccharide (LPS), quartz (DQ12) or titanium dioxide (TiO2) NM-105 particles on the cell viability and barrier integrity were detected. LPS exposure induced moderate cytokine release in the Calu-3 monoculture, albeit not statistically significant in most labs. In the co-culture models, most laboratories showed that LPS can significantly induce cytokine release (IL-6, IL-8 and TNF-α). The exposure to quartz and TiO2 particles did not induce a statistically significant increase in cytokine release in both cell models probably due to our relatively low deposited doses, which were inspired by in vivo dose levels. The intra- and inter-laboratory comparison study indicated acceptable interlaboratory variation for cell viability/toxicity (WST-1, LDH) and transepithelial electrical resistance, and relatively high inter-laboratory variation for cytokine production. CONCLUSION The transferability and reproducibility of a lung co-culture model and its exposure to aerosolized particles at the ALI were evaluated and recommendations were provided for performing inter-laboratory comparison studies. Although the results are promising, optimizations of the lung model (including more sensitive read-outs) and/or selection of higher deposited doses are needed to enhance its predictive value before it may be taken further towards a possible OECD guideline.
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Affiliation(s)
- Hedwig M Braakhuis
- National Institute for Public Health & the Environment (RIVM), the Netherlands
| | - Eric R Gremmer
- National Institute for Public Health & the Environment (RIVM), the Netherlands
| | - Anne Bannuscher
- Adolphe Merkle Institute (AMI), University of Fribourg, Switzerland
| | - Barbara Drasler
- Adolphe Merkle Institute (AMI), University of Fribourg, Switzerland
| | - Sandeep Keshavan
- Adolphe Merkle Institute (AMI), University of Fribourg, Switzerland
| | | | | | | | - Robert Landsiedel
- BASF SE, Ludwigshafen, Germany; Free University of Berlin, Pharmacy - Pharmacology and Toxicology, Berlin, Germany
| | | | | | | | | | - Oda A H Foss
- National Institute of Occupational Health (STAMI), Norway
| | | | - Tommaso Serchi
- Luxembourg Institute of Science and Technology (LIST), Grand Duchy of Luxembourg, Luxembourg
| | - Elisa Moschini
- Luxembourg Institute of Science and Technology (LIST), Grand Duchy of Luxembourg, Luxembourg
| | - Pamina Weber
- Luxembourg Institute of Science and Technology (LIST), Grand Duchy of Luxembourg, Luxembourg
| | - Sabina Burla
- Luxembourg Institute of Science and Technology (LIST), Grand Duchy of Luxembourg, Luxembourg
| | - Pramod Kumar
- Comprehensive Pneumology Center (CPC-M) with the CPC-M bioArchive, Helmholtz Center Munich - Member of the German Center for Lung Research (DZL), Munich, Germany; Institute of Lung Health and Immunity, Helmholtz Center Munich - German Research Center for Environmental Health, Neuherberg, Germany
| | - Otmar Schmid
- Comprehensive Pneumology Center (CPC-M) with the CPC-M bioArchive, Helmholtz Center Munich - Member of the German Center for Lung Research (DZL), Munich, Germany; Institute of Lung Health and Immunity, Helmholtz Center Munich - German Research Center for Environmental Health, Neuherberg, Germany
| | - Edwin Zwart
- National Institute for Public Health & the Environment (RIVM), the Netherlands
| | - Jolanda P Vermeulen
- National Institute for Public Health & the Environment (RIVM), the Netherlands
| | - Rob J Vandebriel
- National Institute for Public Health & the Environment (RIVM), the Netherlands.
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15
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von Delft A, Hall MD, Kwong AD, Purcell LA, Saikatendu KS, Schmitz U, Tallarico JA, Lee AA. Accelerating antiviral drug discovery: lessons from COVID-19. Nat Rev Drug Discov 2023; 22:585-603. [PMID: 37173515 PMCID: PMC10176316 DOI: 10.1038/s41573-023-00692-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2023] [Indexed: 05/15/2023]
Abstract
During the coronavirus disease 2019 (COVID-19) pandemic, a wave of rapid and collaborative drug discovery efforts took place in academia and industry, culminating in several therapeutics being discovered, approved and deployed in a 2-year time frame. This article summarizes the collective experience of several pharmaceutical companies and academic collaborations that were active in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antiviral discovery. We outline our opinions and experiences on key stages in the small-molecule drug discovery process: target selection, medicinal chemistry, antiviral assays, animal efficacy and attempts to pre-empt resistance. We propose strategies that could accelerate future efforts and argue that a key bottleneck is the lack of quality chemical probes around understudied viral targets, which would serve as a starting point for drug discovery. Considering the small size of the viral proteome, comprehensively building an arsenal of probes for proteins in viruses of pandemic concern is a worthwhile and tractable challenge for the community.
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Affiliation(s)
- Annette von Delft
- Centre for Medicines Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
- Oxford Biomedical Research Centre, National Institute for Health Research, University of Oxford, Oxford, UK.
| | - Matthew D Hall
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | | | | | | | | | | | - Alpha A Lee
- PostEra, Inc., Cambridge, MA, USA.
- Cavendish Laboratory, University of Cambridge, Cambridge, UK.
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16
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Fransen LFH, Leonard MO. Induced pluripotent and CD34+ stem cell derived myeloid cells display differential responses to particle and dust mite exposure. Sci Rep 2023; 13:9375. [PMID: 37296179 PMCID: PMC10256772 DOI: 10.1038/s41598-023-36508-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 06/05/2023] [Indexed: 06/12/2023] Open
Abstract
Myeloid cells form an essential component of initial responses to environmental hazards and toxic exposures. The ability to model these responses in vitro is central to efforts tasked with identifying hazardous materials and understanding mechanisms of injury and disease. Induced pluripotent stem cell (iPSC) derived cells have been suggested as alternatives to more established primary cell testing systems for these purposes. iPSC derived macrophage and dendritic like cells were compared to CD34+ haematopoietic stem cell derived populations using transcriptomic analysis. Using single cell sequencing-based characterisation of iPSC derived myeloid cells, we identified transitional, mature and M2 like macrophages as well as dendritic like antigen presenting cells and fibrocytes. Direct transcriptomic comparisons between iPSC and CD34+ cell derived populations revealed higher expression of myeloid differentiation genes such as MNDA, CSF1R and CSF2RB in CD34+ cells, while iPSC populations had higher fibroblastic and proliferative markers. Exposure of differentiated macrophage populations to nanoparticle alone or in combination with dust mite, resulted in differential gene expression on combination only, with responses markedly absent in iPSC compared to CD34+ derived cells. The lack of responsiveness in iPSC derived cells may be attributable to lower levels of dust mite component receptors CD14, TLR4, CLEC7A and CD36. In summary, iPSC derived myeloid cells display typical characteristics of immune cells but may lack a fully mature phenotype to adequately respond to environmental exposures.
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Affiliation(s)
- Leonie F H Fransen
- Toxicology Department, Radiation, Chemical and Environmental Hazards Directorate, UK Health Security Agency, Chilton, Harwell Campus, Didcot, OX11 0RQ, UK
| | - Martin O Leonard
- Toxicology Department, Radiation, Chemical and Environmental Hazards Directorate, UK Health Security Agency, Chilton, Harwell Campus, Didcot, OX11 0RQ, UK.
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Maier A, Bailey T, Hinrichs A, Lerchl S, Newman RT, Fournier C, Vandevoorde C. Experimental Setups for In Vitro Studies on Radon Exposure in Mammalian Cells-A Critical Overview. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:ijerph20095670. [PMID: 37174189 PMCID: PMC10178159 DOI: 10.3390/ijerph20095670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
Naturally occurring radon and its short lived progeny are the second leading cause of lung cancer after smoking, and the main risk factor for non-smokers. The radon progeny, mainly Polonium-218 (218Po) and Polonium-214 (214Po), are responsible for the highest dose deposition in the bronchial epithelium via alpha-decay. These alpha-particles release a large amount of energy over a short penetration range, which results in severe and complex DNA damage. In order to unravel the underlying biological mechanisms which are triggered by this complex DNA damage and eventually give rise to carcinogenesis, in vitro radiobiology experiments on mammalian cells have been performed using radon exposure setups, or radon analogues, which mimic alpha-particle exposure. This review provides an overview of the different experimental setups, which have been developed and used over the past decades for in vitro radon experiments. In order to guarantee reliable results, the design and dosimetry of these setups require careful consideration, which will be emphasized in this work. Results of these in vitro experiments, particularly on bronchial epithelial cells, can provide valuable information on biomarkers, which can assist to identify exposures, as well as to study the effects of localized high dose depositions and the heterogeneous dose distribution of radon.
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Affiliation(s)
- Andreas Maier
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - Tarryn Bailey
- Department of Physics, Stellenbosch University, Stellenbosch, Cape Town 7600, South Africa
- Radiation Biophysics Division, Separated Sector Cyclotron Laboratory, NRF-iThemba LABS, Cape Town 7129, South Africa
| | - Annika Hinrichs
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- Physics Department, Goethe University Frankfurt am Main, 60438 Frankfurt am Main, Germany
| | - Sylvie Lerchl
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - Richard T Newman
- Department of Physics, Stellenbosch University, Stellenbosch, Cape Town 7600, South Africa
| | - Claudia Fournier
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - Charlot Vandevoorde
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- Radiation Biophysics Division, Separated Sector Cyclotron Laboratory, NRF-iThemba LABS, Cape Town 7129, South Africa
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The Cultivation Modality and Barrier Maturity Modulate the Toxicity of Industrial Zinc Oxide and Titanium Dioxide Nanoparticles on Nasal, Buccal, Bronchial, and Alveolar Mucosa Cell-Derived Barrier Models. Int J Mol Sci 2023; 24:ijms24065634. [PMID: 36982705 PMCID: PMC10056597 DOI: 10.3390/ijms24065634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 03/07/2023] [Accepted: 03/12/2023] [Indexed: 03/18/2023] Open
Abstract
As common industrial by-products, airborne engineered nanomaterials are considered important environmental toxins to monitor due to their potential health risks to humans and animals. The main uptake routes of airborne nanoparticles are nasal and/or oral inhalation, which are known to enable the transfer of nanomaterials into the bloodstream resulting in the rapid distribution throughout the human body. Consequently, mucosal barriers present in the nose, buccal, and lung have been identified and intensively studied as the key tissue barrier to nanoparticle translocation. Despite decades of research, surprisingly little is known about the differences among various mucosa tissue types to tolerate nanoparticle exposures. One limitation in comparing nanotoxicological data sets can be linked to a lack of harmonization and standardization of cell-based assays, where (a) different cultivation conditions such as an air-liquid interface or submerged cultures, (b) varying barrier maturity, and (c) diverse media substitutes have been used. The current comparative nanotoxicological study, therefore, aims at analyzing the toxic effects of nanomaterials on four human mucosa barrier models including nasal (RPMI2650), buccal (TR146), alveolar (A549), and bronchial (Calu-3) mucosal cell lines to better understand the modulating effects of tissue maturity, cultivation conditions, and tissue type using standard transwell cultivations at liquid-liquid and air-liquid interfaces. Overall, cell size, confluency, tight junction localization, and cell viability as well as barrier formation using 50% and 100% confluency was monitored using trans-epithelial-electrical resistance (TEER) measurements and resazurin-based Presto Blue assays of immature (e.g., 5 days) and mature (e.g., 22 days) cultures in the presence and absence of corticosteroids such as hydrocortisone. Results of our study show that cellular viability in response to increasing nanoparticle exposure scenarios is highly compound and cell-type specific (TR146 6 ± 0.7% at 2 mM ZnO (ZnO) vs. ~90% at 2 mM TiO2 (TiO2) for 24 h; Calu3 93.9 ± 4.21% at 2 mM ZnO vs. ~100% at 2 mM TiO2). Nanoparticle-induced cytotoxic effects under air-liquid cultivation conditions declined in RPMI2650, A549, TR146, and Calu-3 cells (~0.7 to ~0.2-fold), with increasing 50 to 100% barrier maturity under the influence of ZnO (2 mM). Cell viability in early and late mucosa barriers where hardly influenced by TiO2 as well as most cell types did not fall below 77% viability when added to Individual ALI cultures. Fully maturated bronchial mucosal cell barrier models cultivated under ALI conditions showed less tolerance to acute ZnO nanoparticle exposures (~50% remaining viability at 2 mM ZnO for 24 h) than the similarly treated but more robust nasal (~74%), buccal (~73%), and alveolar (~82%) cell-based models.
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Meyer TJ, Tekin N, Hense P, Ehret-Kasemo T, Lodes N, Stöth M, Ickrath P, Gehrke T, Hagen R, Dembski S, Peer M, Steinke MR, Scherzad A, Hackenberg S. Evaluation of the cytotoxic and genotoxic potential of printer toner particles in a 3D air-liquid interface, primary cell-based nasal tissue model. Toxicol Lett 2023; 379:1-10. [PMID: 36907250 DOI: 10.1016/j.toxlet.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 03/12/2023]
Abstract
Printer toner particles (TPs) are a common, potentially hazardous substance, with an unclear toxicological impact on the respiratory mucosa. Most of the airways surface is covered by a ciliated respiratory mucosa, therefore appropriate tissue models of the respiratory epithelium with a high in vivo correlation are necessary for in vitro evaluation of airborne pollutants toxicology and the impact on the functional integrity. The aim of this study is the evaluation of TPs toxicology in a human primary cell-based air-liquid-interface (ALI) model of respiratory mucosa. The TPs were analyzed and characterized by scanning electron microscopy, pyrolysis and X-ray fluorescence spectrometry. ALI models of 10 patients were created using the epithelial cells and fibroblasts derived from nasal mucosa samples. TPs were applied to the ALI models via a modified Vitrocell® cloud and submerged in the dosing 0.89 - 892.96 µg/ cm2. Particle exposure and intracellular distribution were evaluated by electron microscopy. The MTT assay and the comet assay were used to investigate cytotoxicity and genotoxicity, respectively. The used TPs showed an average particle size of 3 - 8 µm. Mainly carbon, hydrogen, silicon, nitrogen, tin, benzene and benzene derivates were detected as chemical ingredients. By histomorphology and electron microscopy we observed the development of a highly functional, pseudostratified epithelium with a continuous layer of cilia. Using electron microscopy, TPs could be detected on the cilia surface and also intracellularly. Cytotoxicity was detected from 9 µg/ cm2 and higher, but no genotoxicity after ALI and submerged exposure. The ALI with primary nasal cells represents a highly functional model of the respiratory epithelium in terms of histomorphology and mucociliary differentiation. The toxicological results indicate a weak TP-concentration-dependent cytotoxicity. AVAILABILITY OF DATA AND MATERIALS: The datasets used and analysed during the current study are available from the corresponding author on reasonable request.
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Affiliation(s)
- Till Jasper Meyer
- University Hospital Würzburg, Department of Oto-Rhino-Laryngology, Plastic, Aesthetic & Reconstructive Head and Neck Surgery, Josef-Schneider-Straße 11, 97080 Würzburg, Germany.
| | - Nursen Tekin
- University Hospital Würzburg, Department of Oto-Rhino-Laryngology, Plastic, Aesthetic & Reconstructive Head and Neck Surgery, Josef-Schneider-Straße 11, 97080 Würzburg, Germany
| | - Peter Hense
- Bochum University of Applied Sciences, Department Civil and Environmental Engineering, Am Hochschulcampus 1, 44801 Bochum, Germany
| | - Totta Ehret-Kasemo
- University Hospital Würzburg, Department of Oto-Rhino-Laryngology, Plastic, Aesthetic & Reconstructive Head and Neck Surgery, Josef-Schneider-Straße 11, 97080 Würzburg, Germany
| | - Nina Lodes
- University Hospital Würzburg, Chair of Tissue Engineering and Regenerative Medicine, Röntgenring 11, 97070 Würzburg, Germany
| | - Manuel Stöth
- University Hospital Würzburg, Department of Oto-Rhino-Laryngology, Plastic, Aesthetic & Reconstructive Head and Neck Surgery, Josef-Schneider-Straße 11, 97080 Würzburg, Germany
| | - Pascal Ickrath
- University Hospital Würzburg, Department of Oto-Rhino-Laryngology, Plastic, Aesthetic & Reconstructive Head and Neck Surgery, Josef-Schneider-Straße 11, 97080 Würzburg, Germany
| | - Thomas Gehrke
- University Hospital Würzburg, Department of Oto-Rhino-Laryngology, Plastic, Aesthetic & Reconstructive Head and Neck Surgery, Josef-Schneider-Straße 11, 97080 Würzburg, Germany
| | - Rudolf Hagen
- University Hospital Würzburg, Department of Oto-Rhino-Laryngology, Plastic, Aesthetic & Reconstructive Head and Neck Surgery, Josef-Schneider-Straße 11, 97080 Würzburg, Germany
| | - Sofia Dembski
- University Hospital Würzburg, Chair of Tissue Engineering and Regenerative Medicine, Röntgenring 11, 97070 Würzburg, Germany; Fraunhofer Institute for Silicate Research ISC, Neunerplatz 2, 97082 Würzburg, Germany
| | - Michael Peer
- Fraunhofer Institute for Environmental, Safety, and Energy Technology UMSICHT, Institute Branch Sulzbach-Rosenberg, An der Maxhütte 1, 92237 Sulzbach-Rosenberg, Germany
| | - Maria R Steinke
- University Hospital Würzburg, Chair of Tissue Engineering and Regenerative Medicine, Röntgenring 11, 97070 Würzburg, Germany; Fraunhofer Institute for Silicate Research ISC, Neunerplatz 2, 97082 Würzburg, Germany
| | - Agmal Scherzad
- University Hospital Würzburg, Department of Oto-Rhino-Laryngology, Plastic, Aesthetic & Reconstructive Head and Neck Surgery, Josef-Schneider-Straße 11, 97080 Würzburg, Germany
| | - Stephan Hackenberg
- RWTH Aachen University Hospital, Department of Otorhinolaryngology - Head and Neck Surgery, Pauwelsstraße 30, 52074 Aachen, Germany
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20
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Staal YCM, Li Y, Gerber LS, Fokkens P, Cremers H, Cassee FR, Talhout R, Westerink RHS, Heusinkveld HJ. Neuromodulatory and neurotoxic effects of e-cigarette vapor using a realistic exposure method. Inhal Toxicol 2023; 35:76-85. [PMID: 36053669 DOI: 10.1080/08958378.2022.2118911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The most direct effects of inhaled harmful constituents are the effects on the airways. However, inhaled compounds can be rapidly absorbed and subsequently result in systemic effects. For example, e-cigarette vapor has been shown to evoke local effects in the lung, although little is known about subsequent effects in secondary target organs such as the brain. Traditionally, such effects are tested using in vivo models. As an alternative, we have combined two in vitro systems, which are Air-Liquid-Interface (ALI) cultured alveolar cells (A549) and rat primary cortical cultures grown on multi-well microelectrode arrays. This allows us to assess the neurological effects of inhaled compounds. We have used exposure to e-cigarette vapor, containing nicotine, menthol, or vanillin to test the model. Our results show that ALI cultured A549 cells respond to the exposure with the production of cytokines (IL8 and GROalpha). Furthermore, nicotine, menthol, and vanillin were found on the basolateral side of the cell culture, which indicates their translocation. Upon transfer of the basolateral medium to the primary cortical culture, exposure-related changes in spontaneous electrical activity were observed correlating with the presence of e-liquid components in the medium. These clear neuromodulatory effects demonstrate the feasibility of combining continuous exposure of ALI cultured cells with subsequent exposure of neuronal cells to assess neurotoxicity. Although further optimization steps are needed, such a combination of methods is important to assess the neurotoxic effects of inhaled compounds realistically. As such, an approach like this could play a role in future mechanism-based risk assessment strategies.
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Affiliation(s)
- Yvonne C M Staal
- National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Yixuan Li
- National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
- Institute for Risk Assessment Sciences (IRAS), Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Lora-Sophie Gerber
- Institute for Risk Assessment Sciences (IRAS), Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Paul Fokkens
- National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Hans Cremers
- National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Flemming R Cassee
- National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
- Institute for Risk Assessment Sciences (IRAS), Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Reinskje Talhout
- National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
| | - Remco H S Westerink
- Institute for Risk Assessment Sciences (IRAS), Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Harm J Heusinkveld
- National Institute for Public Health and the Environment (RIVM), Bilthoven, Netherlands
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21
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Measuring DNA modifications with the comet assay: a compendium of protocols. Nat Protoc 2023; 18:929-989. [PMID: 36707722 DOI: 10.1038/s41596-022-00754-y] [Citation(s) in RCA: 90] [Impact Index Per Article: 90.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 07/05/2022] [Indexed: 01/28/2023]
Abstract
The comet assay is a versatile method to detect nuclear DNA damage in individual eukaryotic cells, from yeast to human. The types of damage detected encompass DNA strand breaks and alkali-labile sites (e.g., apurinic/apyrimidinic sites), alkylated and oxidized nucleobases, DNA-DNA crosslinks, UV-induced cyclobutane pyrimidine dimers and some chemically induced DNA adducts. Depending on the specimen type, there are important modifications to the comet assay protocol to avoid the formation of additional DNA damage during the processing of samples and to ensure sufficient sensitivity to detect differences in damage levels between sample groups. Various applications of the comet assay have been validated by research groups in academia, industry and regulatory agencies, and its strengths are highlighted by the adoption of the comet assay as an in vivo test for genotoxicity in animal organs by the Organisation for Economic Co-operation and Development. The present document includes a series of consensus protocols that describe the application of the comet assay to a wide variety of cell types, species and types of DNA damage, thereby demonstrating its versatility.
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22
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Mallek NM, Martin EM, Dailey LA, McCullough SD. Liquid Application Dosing Alters the Physiology of Air-Liquid Interface Primary Bronchial Epithelial Cultures and In vitro Testing Relevant Endpoints. RESEARCH SQUARE 2023:rs.3.rs-2570280. [PMID: 36865279 PMCID: PMC9980280 DOI: 10.21203/rs.3.rs-2570280/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Differentiated Primary human bronchial epithelial cell (dpHBEC) cultures grown under air-liquid interface (ALI) conditions exhibit key features of the human respiratory tract and are thus critical for respiratory research as well as efficacy and toxicity testing of inhaled substances (e.g., consumer products, industrial chemicals, and pharmaceuticals). Many inhalable substances (e.g., particles, aerosols, hydrophobic substances, reactive substances) have physiochemical properties that challenge their evaluation under ALI conditions in vitro. Evaluation of the effects of these methodologically challenging chemicals (MCCs) in vitro is typically conducted by "liquid application," involving the direct application of a solution containing the test substance to the apical, air-exposed surface of dpHBEC-ALI cultures. We report that the application of liquid to the apical surface of a dpHBEC-ALI co-culture model results in significant reprogramming of the dpHBEC transcriptome and biological pathway activity, alternative regulation of cellular signaling pathways, increased secretion of pro-inflammatory cytokines and growth factors, and decreased epithelial barrier integrity. Given the prevalence of liquid application in the delivery of test substances to ALI systems, understanding its effects provides critical infrastructure for the use of in vitro systems in respiratory research as well as in the safety and efficacy testing of inhalable substances.
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23
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Bessa MJ, Brandão F, Rosário F, Moreira L, Reis AT, Valdiglesias V, Laffon B, Fraga S, Teixeira JP. Assessing the in vitro toxicity of airborne (nano)particles to the human respiratory system: from basic to advanced models. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2023; 26:67-96. [PMID: 36692141 DOI: 10.1080/10937404.2023.2166638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Several studies have been conducted to address the potential adverse health risks attributed to exposure to nanoscale materials. While in vivo studies are fundamental for identifying the relationship between dose and occurrence of adverse effects, in vitro model systems provide important information regarding the mechanism(s) of action at the molecular level. With a special focus on exposure to inhaled (nano)particulate material toxicity assessment, this review provides an overview of the available human respiratory models and exposure systems for in vitro testing, advantages, limitations, and existing investigations using models of different complexity. A brief overview of the human respiratory system, pathway and fate of inhaled (nano)particles is also presented.
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Affiliation(s)
- Maria João Bessa
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Fátima Brandão
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Fernanda Rosário
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
| | - Luciana Moreira
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
| | - Ana Teresa Reis
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
| | - Vanessa Valdiglesias
- Departamento de Biología, Universidade da Coruña, Grupo NanoToxGen, Centro Interdisciplinar de Química e Bioloxía - CICA, A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
| | - Blanca Laffon
- Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
- Departamento de Psicología, Universidade da Coruña, Grupo DICOMOSA, Centro Interdisciplinar de Química e Bioloxía - CICA, A Coruña, Spain
| | - Sónia Fraga
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
- Department of Biomedicine, Unit of Pharmacology and Therapeutics, Faculty of Medicine, University of Porto, Porto, Portugal
| | - João Paulo Teixeira
- Departamento de Saúde Ambiental, Instituto Nacional de Saúde Doutor Ricardo Jorge, Porto, Portugal
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
- Laboratório para a Investigação Integrativa e Translacional em Saúde Populacional (ITR), Porto, Portugal
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24
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Busch M, Brouwer H, Aalderink G, Bredeck G, Kämpfer AAM, Schins RPF, Bouwmeester H. Investigating nanoplastics toxicity using advanced stem cell-based intestinal and lung in vitro models. FRONTIERS IN TOXICOLOGY 2023; 5:1112212. [PMID: 36777263 PMCID: PMC9911716 DOI: 10.3389/ftox.2023.1112212] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 01/17/2023] [Indexed: 01/28/2023] Open
Abstract
Plastic particles in the nanometer range-called nanoplastics-are environmental contaminants with growing public health concern. As plastic particles are present in water, soil, air and food, human exposure via intestine and lung is unavoidable, but possible health effects are still to be elucidated. To better understand the Mode of Action of plastic particles, it is key to use experimental models that best reflect human physiology. Novel assessment methods like advanced cell models and several alternative approaches are currently used and developed in the scientific community. So far, the use of cancer cell line-based models is the standard approach regarding in vitro nanotoxicology. However, among the many advantages of the use of cancer cell lines, there are also disadvantages that might favor other approaches. In this review, we compare cell line-based models with stem cell-based in vitro models of the human intestine and lung. In the context of nanoplastics research, we highlight the advantages that come with the use of stem cells. Further, the specific challenges of testing nanoplastics in vitro are discussed. Although the use of stem cell-based models can be demanding, we conclude that, depending on the research question, stem cells in combination with advanced exposure strategies might be a more suitable approach than cancer cell lines when it comes to toxicological investigation of nanoplastics.
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Affiliation(s)
- Mathias Busch
- Division of Toxicology, Wageningen University and Research, Wageningen, Netherlands
| | - Hugo Brouwer
- Division of Toxicology, Wageningen University and Research, Wageningen, Netherlands
| | - Germaine Aalderink
- Division of Toxicology, Wageningen University and Research, Wageningen, Netherlands
| | - Gerrit Bredeck
- IUF—Leibniz-Research Institute for Environmental Medicine, Duesseldorf, Germany
| | | | - Roel P. F. Schins
- IUF—Leibniz-Research Institute for Environmental Medicine, Duesseldorf, Germany
| | - Hans Bouwmeester
- Division of Toxicology, Wageningen University and Research, Wageningen, Netherlands,*Correspondence: Hans Bouwmeester,
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25
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Rothen-Rutishauser B, Gibb M, He R, Petri-Fink A, Sayes CM. Human lung cell models to study aerosol delivery - considerations for model design and development. Eur J Pharm Sci 2023; 180:106337. [PMID: 36410570 DOI: 10.1016/j.ejps.2022.106337] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022]
Abstract
Human lung tissue models range from simple monolayer cultures to more advanced three-dimensional co-cultures. Each model system can address the interactions of different types of aerosols and the choice of the model and the mode of aerosol exposure depends on the relevant scenario, such as adverse outcomes and endpoints of interest. This review focuses on the functional, as well as structural, aspects of lung tissue from the upper airway to the distal alveolar compartments as this information is relevant for the design of a model as well as how the aerosol properties determine the interfacial properties with the respiratory wall. The most important aspects on how to design lung models are summarized with a focus on (i) choice of appropriate scaffold, (ii) selection of cell types for healthy and diseased lung models, (iii) use of culture condition and assembly, (iv) aerosol exposure methods, and (v) endpoints and verification process. Finally, remaining challenges and future directions in this field are discussed.
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Affiliation(s)
- Barbara Rothen-Rutishauser
- BioNanomaterials, Adolphe Merkle Institute, University Fribourg, Chemin des Verdiers 4 CH-1700, Fribourg, Switzerland.
| | - Matthew Gibb
- Department of Environmental Science, Baylor University, One Bear Place #97266, Waco, TX 76798-7266, USA
| | - Ruiwen He
- BioNanomaterials, Adolphe Merkle Institute, University Fribourg, Chemin des Verdiers 4 CH-1700, Fribourg, Switzerland
| | - Alke Petri-Fink
- BioNanomaterials, Adolphe Merkle Institute, University Fribourg, Chemin des Verdiers 4 CH-1700, Fribourg, Switzerland
| | - Christie M Sayes
- Department of Environmental Science, Baylor University, One Bear Place #97266, Waco, TX 76798-7266, USA.
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26
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Tulen CBM, Duistermaat E, Cremers JWJM, Klerx WNM, Fokkens PHB, Weibolt N, Kloosterboer N, Dentener MA, Gremmer ER, Jessen PJJ, Koene EJC, Maas L, Opperhuizen A, van Schooten FJ, Staal YCM, Remels AHV. Smoking-Associated Exposure of Human Primary Bronchial Epithelial Cells to Aldehydes: Impact on Molecular Mechanisms Controlling Mitochondrial Content and Function. Cells 2022; 11:3481. [PMID: 36359877 PMCID: PMC9655975 DOI: 10.3390/cells11213481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 09/21/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a devastating lung disease primarily caused by exposure to cigarette smoke (CS). During the pyrolysis and combustion of tobacco, reactive aldehydes such as acetaldehyde, acrolein, and formaldehyde are formed, which are known to be involved in respiratory toxicity. Although CS-induced mitochondrial dysfunction has been implicated in the pathophysiology of COPD, the role of aldehydes therein is incompletely understood. To investigate this, we used a physiologically relevant in vitro exposure model of differentiated human primary bronchial epithelial cells (PBEC) exposed to CS (one cigarette) or a mixture of acetaldehyde, acrolein, and formaldehyde (at relevant concentrations of one cigarette) or air, in a continuous flow system using a puff-like exposure protocol. Exposure of PBEC to CS resulted in elevated IL-8 cytokine and mRNA levels, increased abundance of constituents associated with autophagy, decreased protein levels of molecules associated with the mitophagy machinery, and alterations in the abundance of regulators of mitochondrial biogenesis. Furthermore, decreased transcript levels of basal epithelial cell marker KRT5 were reported after CS exposure. Only parts of these changes were replicated in PBEC upon exposure to a combination of acetaldehyde, acrolein, and formaldehyde. More specifically, aldehydes decreased MAP1LC3A mRNA (autophagy) and BNIP3 protein (mitophagy) and increased ESRRA protein (mitochondrial biogenesis). These data suggest that other compounds in addition to aldehydes in CS contribute to CS-induced dysregulation of constituents controlling mitochondrial content and function in airway epithelial cells.
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Affiliation(s)
- Christy B. M. Tulen
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, 6200 MD Maastricht, The Netherlands
| | - Evert Duistermaat
- National Institute for Public Health and the Environment (RIVM), 3721 MA Bilthoven, The Netherlands
| | | | - Walther N. M. Klerx
- National Institute for Public Health and the Environment (RIVM), 3721 MA Bilthoven, The Netherlands
| | - Paul H. B. Fokkens
- National Institute for Public Health and the Environment (RIVM), 3721 MA Bilthoven, The Netherlands
| | - Naömi Weibolt
- National Institute for Public Health and the Environment (RIVM), 3721 MA Bilthoven, The Netherlands
| | - Nico Kloosterboer
- Department of Pediatrics, Maastricht University Medical Center+, 6229 HX Maastricht, The Netherlands
- Primary Lung Culture (PLUC) Facility, Maastricht University Medical Center+, 6200 MD Maastricht, The Netherlands
| | - Mieke A. Dentener
- Primary Lung Culture (PLUC) Facility, Maastricht University Medical Center+, 6200 MD Maastricht, The Netherlands
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Respiratory Medicine, Maastricht University Medical Center+, 6200 MD Maastricht, The Netherlands
| | - Eric R. Gremmer
- National Institute for Public Health and the Environment (RIVM), 3721 MA Bilthoven, The Netherlands
| | - Phyllis J. J. Jessen
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, 6200 MD Maastricht, The Netherlands
| | - Evi J. C. Koene
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, 6200 MD Maastricht, The Netherlands
| | - Lou Maas
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, 6200 MD Maastricht, The Netherlands
| | - Antoon Opperhuizen
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, 6200 MD Maastricht, The Netherlands
- Office of Risk Assessment and Research, Netherlands Food and Consumer Product Safety Authority (NVWA), 3511 GG Utrecht, The Netherlands
| | - Frederik-Jan van Schooten
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, 6200 MD Maastricht, The Netherlands
| | - Yvonne C. M. Staal
- National Institute for Public Health and the Environment (RIVM), 3721 MA Bilthoven, The Netherlands
| | - Alexander H. V. Remels
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Department of Pharmacology and Toxicology, Maastricht University Medical Center+, 6200 MD Maastricht, The Netherlands
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Madas BG, Boei J, Fenske N, Hofmann W, Mezquita L. Effects of spatial variation in dose delivery: what can we learn from radon-related lung cancer studies? RADIATION AND ENVIRONMENTAL BIOPHYSICS 2022; 61:561-577. [PMID: 36208308 PMCID: PMC9630403 DOI: 10.1007/s00411-022-00998-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 09/28/2022] [Indexed: 05/14/2023]
Abstract
Exposure to radon progeny results in heterogeneous dose distributions in many different spatial scales. The aim of this review is to provide an overview on the state of the art in epidemiology, clinical observations, cell biology, dosimetry, and modelling related to radon exposure and its association with lung cancer, along with priorities for future research. Particular attention is paid on the effects of spatial variation in dose delivery within the organs, a factor not considered in radiation protection. It is concluded that a multidisciplinary approach is required to improve risk assessment and mechanistic understanding of carcinogenesis related to radon exposure. To achieve these goals, important steps would be to clarify whether radon can cause other diseases than lung cancer, and to investigate radon-related health risks in children or persons at young ages. Also, a better understanding of the combined effects of radon and smoking is needed, which can be achieved by integrating epidemiological, clinical, pathological, and molecular oncology data to obtain a radon-associated signature. While in vitro models derived from primary human bronchial epithelial cells can help to identify new and corroborate existing biomarkers, they also allow to study the effects of heterogeneous dose distributions including the effects of locally high doses. These novel approaches can provide valuable input and validation data for mathematical models for risk assessment. These models can be applied to quantitatively translate the knowledge obtained from radon exposure to other exposures resulting in heterogeneous dose distributions within an organ to support radiation protection in general.
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Affiliation(s)
- Balázs G Madas
- Environmental Physics Department, Centre for Energy Research, Budapest, Hungary.
| | - Jan Boei
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Nora Fenske
- Federal Office for Radiation Protection, Munich (Neuherberg), Germany
| | - Werner Hofmann
- Biological Physics, Department of Chemistry and Physics of Materials, University of Salzburg, Salzburg, Austria
| | - Laura Mezquita
- Medical Oncology Department, Hospital Clinic of Barcelona, Barcelona, Spain
- Laboratory of Translational Genomic and Targeted Therapies in Solid Tumors, IDIBAPS, Barcelona, Spain
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Maibohm C, Saldana-Lopez A, Silvestre OF, Nieder JB. 3D Polymer Architectures for the Identification of Optimal Dimensions for Cellular Growth of 3D Cellular Models. Polymers (Basel) 2022; 14:polym14194168. [PMID: 36236117 PMCID: PMC9572445 DOI: 10.3390/polym14194168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/16/2022] [Accepted: 09/22/2022] [Indexed: 11/06/2022] Open
Abstract
Organ-on-chips and scaffolds for tissue engineering are vital assay tools for pre-clinical testing and prediction of human response to drugs and toxins, while providing an ethical sound replacement for animal testing. A success criterion for these models is the ability to have structural parameters for optimized performance. Here we show that two-photon polymerization fabrication can create 3D test platforms, where scaffold parameters can be directly analyzed by their effects on cell growth and movement. We design and fabricate a 3D grid structure, consisting of wall structures with niches of various dimensions for probing cell attachment and movement, while providing easy access for fluorescence imaging. The 3D structures are fabricated from bio-compatible polymer SZ2080 and subsequently seeded with A549 lung epithelia cells. The seeded structures are imaged with confocal microscopy, where spectral imaging with linear unmixing is used to separate auto-fluorescence scaffold contribution from the cell fluorescence. The volume of cellular material present in different sections of the structures is analyzed, to study the influence of structural parameters on cell distribution. Furthermore, time-lapse studies are performed to map the relation between scaffold parameters and cell movement. In the future, this kind of differentiated 3D growth platform, could be applied for optimized culture growth, cell differentiation, and advanced cell therapies.
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Bannuscher A, Schmid O, Drasler B, Rohrbasser A, Braakhuis HM, Meldrum K, Zwart EP, Gremmer ER, Birk B, Rissel M, Landsiedel R, Moschini E, Evans SJ, Kumar P, Orak S, Doryab A, Erdem JS, Serchi T, Vandebriel RJ, Cassee FR, Doak SH, Petri-Fink A, Zienolddiny S, Clift MJD, Rothen-Rutishauser B. An inter-laboratory effort to harmonize the cell-delivered in vitro dose of aerosolized materials. NANOIMPACT 2022; 28:100439. [PMID: 36402283 DOI: 10.1016/j.impact.2022.100439] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 11/13/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Air-liquid interface (ALI) lung cell models cultured on permeable transwell inserts are increasingly used for respiratory hazard assessment requiring controlled aerosolization and deposition of any material on ALI cells. The approach presented herein aimed to assess the transwell insert-delivered dose of aerosolized materials using the VITROCELL® Cloud12 system, a commercially available aerosol-cell exposure system. An inter-laboratory comparison study was conducted with seven European partners having different levels of experience with the VITROCELL® Cloud12. A standard operating procedure (SOP) was developed and applied by all partners for aerosolized delivery of materials, i.e., a water-soluble molecular substance (fluorescence-spiked salt) and two poorly soluble particles, crystalline silica quartz (DQ12) and titanium dioxide nanoparticles (TiO2 NM-105). The material dose delivered to transwell inserts was quantified with spectrofluorometry (fluorescein) and with the quartz crystal microbalance (QCM) integrated in the VITROCELL® Cloud12 system. The shape and agglomeration state of the deposited particles were confirmed with transmission electron microscopy (TEM). Inter-laboratory comparison of the device-specific performance was conducted in two steps, first for molecular substances (fluorescein-spiked salt), and then for particles. Device- and/or handling-specific differences in aerosol deposition of VITROCELL® Cloud12 systems were characterized in terms of the so-called deposition factor (DF), which allows for prediction of the transwell insert-deposited particle dose from the particle concentration in the aerosolized suspension. Albeit DF varied between the different labs from 0.39 to 0.87 (mean (coefficient of variation (CV)): 0.64 (28%)), the QCM of each VITROCELL® Cloud 12 system accurately measured the respective transwell insert-deposited dose. Aerosolized delivery of DQ12 and TiO2 NM-105 particles showed good linearity (R2 > 0.95) between particle concentration of the aerosolized suspension and QCM-determined insert-delivered particle dose. The VITROCELL® Cloud 12 performance for DQ12 particles was identical to that for fluorescein-spiked salt, i.e., the ratio of measured and salt-predicted dose was 1.0 (29%). On the other hand, a ca. 2-fold reduced dose was observed for TiO2 NM-105 (0.54 (41%)), which was likely due to partial retention of TiO2 NM-105 agglomerates in the vibrating mesh nebulizer of the VITROCELL® Cloud12. This inter-laboratory comparison demonstrates that the QCM integrated in the VITROCELL® Cloud 12 is a reliable tool for dosimetry, which accounts for potential variations of the transwell insert-delivered dose due to device-, handling- and/or material-specific effects. With the detailed protocol presented herein, all seven partner laboratories were able to demonstrate dose-controlled aerosolization of material suspensions using the VITROCELL® Cloud12 exposure system at dose levels relevant for observing in vitro hazard responses. This is an important step towards regulatory approved implementation of ALI lung cell cultures for in vitro hazard assessment of aerosolized materials.
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Affiliation(s)
- Anne Bannuscher
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Otmar Schmid
- Comprehensive Pneumology Center (CPC-M), Helmholtz Zentrum München - Member of the German Center for Lung Research (DZL), Max-Lebsche-Platz 31, 81377 Munich, Germany; Institute of Lung Health and Immunity, Helmholtz Zentrum München - German Research Center for Environmental Health, 85764 Neuherberg, Germany
| | - Barbara Drasler
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Alain Rohrbasser
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Hedwig M Braakhuis
- National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720, BA, Bilthoven, the Netherlands
| | - Kirsty Meldrum
- In Vitro Toxicology Group, Faculty of Medicine, Health and Life Sciences, Medical School, Institute of Life Sciences, Centre for NanoHealth, Swansea University, Singleton Campus, Wales SA2 8PP, UK
| | - Edwin P Zwart
- National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720, BA, Bilthoven, the Netherlands
| | - Eric R Gremmer
- National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720, BA, Bilthoven, the Netherlands
| | - Barbara Birk
- BASF SE, Experimental Toxicology and Ecology, 67056 Ludwigshafen am Rhein, Germany
| | - Manuel Rissel
- BASF SE, Experimental Toxicology and Ecology, 67056 Ludwigshafen am Rhein, Germany
| | - Robert Landsiedel
- BASF SE, Experimental Toxicology and Ecology, 67056 Ludwigshafen am Rhein, Germany; Free University of Berlin, Pharmacy, Pharmacology and Toxicology, 14195 Berlin, Germany
| | - Elisa Moschini
- Department of Environmental Research and Innovation, Luxembourg Institute of Science and Technology (LIST), 41 rue du Brill, L4422 Belvaux, Grand-Duchy of Luxembourg, Luxembourg
| | - Stephen J Evans
- In Vitro Toxicology Group, Faculty of Medicine, Health and Life Sciences, Medical School, Institute of Life Sciences, Centre for NanoHealth, Swansea University, Singleton Campus, Wales SA2 8PP, UK
| | - Pramod Kumar
- Comprehensive Pneumology Center (CPC-M), Helmholtz Zentrum München - Member of the German Center for Lung Research (DZL), Max-Lebsche-Platz 31, 81377 Munich, Germany; Institute of Lung Health and Immunity, Helmholtz Zentrum München - German Research Center for Environmental Health, 85764 Neuherberg, Germany
| | - Sezer Orak
- Comprehensive Pneumology Center (CPC-M), Helmholtz Zentrum München - Member of the German Center for Lung Research (DZL), Max-Lebsche-Platz 31, 81377 Munich, Germany; Institute of Lung Health and Immunity, Helmholtz Zentrum München - German Research Center for Environmental Health, 85764 Neuherberg, Germany
| | - Ali Doryab
- Comprehensive Pneumology Center (CPC-M), Helmholtz Zentrum München - Member of the German Center for Lung Research (DZL), Max-Lebsche-Platz 31, 81377 Munich, Germany; Institute of Lung Health and Immunity, Helmholtz Zentrum München - German Research Center for Environmental Health, 85764 Neuherberg, Germany
| | | | - Tommaso Serchi
- Department of Environmental Research and Innovation, Luxembourg Institute of Science and Technology (LIST), 41 rue du Brill, L4422 Belvaux, Grand-Duchy of Luxembourg, Luxembourg
| | - Rob J Vandebriel
- National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720, BA, Bilthoven, the Netherlands
| | - Flemming R Cassee
- National Institute for Public Health and the Environment (RIVM), PO Box 1, 3720, BA, Bilthoven, the Netherlands; Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - Shareen H Doak
- In Vitro Toxicology Group, Faculty of Medicine, Health and Life Sciences, Medical School, Institute of Life Sciences, Centre for NanoHealth, Swansea University, Singleton Campus, Wales SA2 8PP, UK
| | - Alke Petri-Fink
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | | | - Martin J D Clift
- In Vitro Toxicology Group, Faculty of Medicine, Health and Life Sciences, Medical School, Institute of Life Sciences, Centre for NanoHealth, Swansea University, Singleton Campus, Wales SA2 8PP, UK
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Meldrum K, Moura JA, Doak SH, Clift MJD. Dynamic Fluid Flow Exacerbates the (Pro-)Inflammatory Effects of Aerosolised Engineered Nanomaterials In Vitro. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12193431. [PMID: 36234557 PMCID: PMC9565225 DOI: 10.3390/nano12193431] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/20/2022] [Accepted: 09/26/2022] [Indexed: 06/08/2023]
Abstract
The majority of in vitro studies focusing upon particle-lung cell interactions use static models at an air-liquid interface (ALI). Advancing the physiological characteristics of such systems allows for closer resemblance of the human lung, in turn promoting 3R strategies. PATROLS (EU Horizon 2020 No. 760813) aimed to use a well-characterised in vitro model of the human alveolar epithelial barrier to determine how fluid-flow dynamics would impact the outputs of the model following particle exposure. Using the QuasiVivoTM (Kirkstall Ltd., York, UK) system, fluid-flow conditions were applied to an A549 + dTHP-1 cell co-culture model cultured at the ALI. DQ12 and TiO2 (JRCNM01005a) were used as model particles to assess the in vitro systems' sensitivity. Using a quasi- and aerosol (VitroCell Cloud12, VitroCell Systems, Waldkirch, Germany) exposure approach, cell cultures were exposed over 24 h at IVIVE concentrations of 1 and 10 (DQ12) and 1.4 and 10.4 (TiO2) µg/cm2, respectively. We compared static and fluid flow conditions after both these exposure methods. The co-culture was subsequently assessed for its viability, membrane integrity and (pro-)inflammatory response (IL-8 and IL-6 production). The results suggested that the addition of fluid flow to this alveolar co-culture model can influence the viability, membrane integrity and inflammatory responses dependent on the particle type and exposure.
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Bacova J, Knotek P, Kopecka K, Hromadko L, Capek J, Nyvltova P, Bruckova L, Schröterova L, Sestakova B, Palarcik J, Motola M, Cizkova D, Bezrouk A, Handl J, Fiala Z, Rudolf E, Bilkova Z, Macak JM, Rousar T. Evaluating the Use of TiO 2 Nanoparticles for Toxicity Testing in Pulmonary A549 Cells. Int J Nanomedicine 2022; 17:4211-4225. [PMID: 36124012 PMCID: PMC9482439 DOI: 10.2147/ijn.s374955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/21/2022] [Indexed: 12/11/2022] Open
Abstract
Purpose Titanium dioxide nanoparticles, 25 nm in size of crystallites (TiO2 P25), are among the most produced nanomaterials worldwide. The broad use of TiO2 P25 in material science has implied a request to evaluate their biological effects, especially in the lungs. Hence, the pulmonary A549 cell line has been used to estimate the effects of TiO2 P25. However, the reports have provided dissimilar results on caused toxicity. Surprisingly, the physicochemical factors influencing TiO2 P25 action in biological models have not been evaluated in most reports. Thus, the objective of the present study is to characterize the preparation of TiO2 P25 for biological testing in A549 cells and to evaluate their biological effects. Methods We determined the size and crystallinity of TiO2 P25. We used four techniques for TiO2 P25 dispersion. We estimated the colloid stability of TiO2 P25 in distilled water, isotonic NaCl solution, and cell culture medium. We applied the optimal dispersion conditions for testing the biological effects of TiO2 P25 (0–100 µg.mL−1) in A549 cells using biochemical assays (dehydrogenase activity, glutathione levels) and microscopy. Results We found that the use of fetal bovine serum in culture medium is essential to maintain sufficient colloid stability of dispersed TiO2 P25. Under these conditions, TiO2 P25 were unable to induce a significant impairment of A549 cells according to the results of biochemical and microscopy evaluations. When the defined parameters for the use of TiO2 P25 in A549 cells were met, similar results on the biological effects of TiO2 P25 were obtained in two independent cell laboratories. Conclusion We optimized the experimental conditions of TiO2 P25 preparation for toxicity testing in A549 cells. The results presented here on TiO2 P25-induced cellular effects are reproducible. Therefore, our results can be helpful for other researchers using TiO2 P25 as a reference material.
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Affiliation(s)
- Jana Bacova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| | - Petr Knotek
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| | - Katerina Kopecka
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| | - Ludek Hromadko
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| | - Jan Capek
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| | - Pavlina Nyvltova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| | - Lenka Bruckova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| | - Ladislava Schröterova
- Department of Medical Biology and Genetics, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Blanka Sestakova
- Department of Medical Biology and Genetics, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Jiri Palarcik
- Institute of Environmental and Chemical Engineering, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| | - Martin Motola
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| | - Dana Cizkova
- Department of Histology and Embryology, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Ales Bezrouk
- Department of Medical Biophysics, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Jiri Handl
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| | - Zdenek Fiala
- Department of Preventive Medicine, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Emil Rudolf
- Department of Medical Biology and Genetics, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Zuzana Bilkova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| | - Jan M Macak
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic.,Central European Institute of Technology, Brno University of Technology, Brno, Czech Republic
| | - Tomas Rousar
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
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Yan J, Li Z, Guo J, Liu S, Guo J. Organ-on-a-chip: A new tool for in vitro research. Biosens Bioelectron 2022; 216:114626. [PMID: 35969963 DOI: 10.1016/j.bios.2022.114626] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/20/2022] [Accepted: 08/04/2022] [Indexed: 12/16/2022]
Abstract
Organ-on-a-chip (OOC, organ chip) technology can closely simulate the human microenvironment, synthesize organ-like functional units on a fluidic chip substrate, and simulate the physiology of tissues and organs. It will become an increasingly important platform for in vitro drug development and screening. Most importantly, organ-on-a-chip technology, incorporating 3D cell cultures, overcomes the traditional drawbacks of 2D (flat) cell-culture technology in vitro and in vivo animal trials, neither of which generate completely reliable results when it comes to the actual human subject. It is expected that organ chips will allow huge reductions in the incidence of failure in late-stage human trials, thus slashing the cost of drug development and speeding up the introduction of drugs that are effective. There have been three key enabling technologies that have made organ chip technology possible: 3D bioprinting, fluidic chips, and 3D cell culture, of which the last has allowed cells to be cultivated under more physiologically realistic growth conditions than 2D culture. The fusion of these advanced technologies and the addition of new research methods and algorithms has enabled the construction of chip types with different structures and different uses, providing a wide range of controllable microenvironments, both for research at the cellular level and for more reliable analysis of the action of drugs on the human body. This paper summarizes some research progress of organ-on-a-chip in recent years, outlines the key technologies used and the achievements in drug screening, and makes some suggestions concerning the current challenges and future development of organ-on-a-chip technology.
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Affiliation(s)
- Jiasheng Yan
- The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine, Chongqing Medical University, #1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China; University of Electronic Science and Technology of China, Chengdu, China
| | - Ziwei Li
- Department of Clinical Laboratory, Fuling Central Hospital of Chongqing City, Chongqing, 408008, China
| | - Jiuchuan Guo
- The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine, Chongqing Medical University, #1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China; University of Electronic Science and Technology of China, Chengdu, China.
| | - Shan Liu
- Sichuan Provincial Key Laboratory for Human Disease Gene Study, Department of Medical Genetics, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, University of Electronic Science and Technology, Chengdu, 610072, China.
| | - Jinhong Guo
- The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine, Chongqing Medical University, #1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China; School of Sensing Science and Engineering, Shanghai Jiao Tong University, Shanghai, China.
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Mori S, Ishimori K, Matsumura K, Ishikawa S, Ito S. Donor-to-donor variability of a human three-dimensional bronchial epithelial model: A case study of cigarette smoke exposure. Toxicol In Vitro 2022; 82:105391. [PMID: 35595035 DOI: 10.1016/j.tiv.2022.105391] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/21/2022] [Accepted: 05/13/2022] [Indexed: 01/05/2023]
Abstract
Three-dimensional (3D) cultured primary cells are used to predict the toxicity of substances towards humans because these 3D cultures closely mimic the physiological architecture of tissues. Nonetheless, it is important to consider primary-cell-specific variability for endpoint selection and appropriate evaluation of toxicity because donor-dependent characteristics may be retained even in in vitro cell cultures. In this report, 3D differentiated bronchial epithelial cells from three donors were used to investigate donor-to-donor variability, with an aqueous extract of cigarette smoke (CS) used as the test substance. Ciliary function, cytokine secretion, and histopathology, which are affected by CS, were examined, and transcriptomic analysis was also performed. The results revealed that interleukin-8 secretion and oxidative stress-related gene expression were consistently altered for all donors; however, their amplitudes varied. Moreover, one of the donors showed unique responses to CS, suggesting that this donor was an outlier. This donor showed intrinsic differences in histology, cytokine secretion, and gene expression profile. Such donors may help evaluate potential toxicological concerns and aid our understanding of disease pathogenesis. Conversely, these donors may confound toxicological assessment and endpoint selection. Fit-for-purpose handling of inter-donor variability is warranted.
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Affiliation(s)
- Sakura Mori
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama, Kanagawa 227-8512, Japan
| | - Kanae Ishimori
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama, Kanagawa 227-8512, Japan
| | - Kazushi Matsumura
- Scientific and Regulatory Affairs, JT International SA, 8 rue Kazem Radjavi, 1202 Geneva, Switzerland
| | - Shinkichi Ishikawa
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama, Kanagawa 227-8512, Japan
| | - Shigeaki Ito
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama, Kanagawa 227-8512, Japan.
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Pang X, Shi H, Chen X, Li C, Shi B, Yeo AJ, Lavin MF, Jia Q, Shao H, Zhang J, Yu G. miRNA-34c-5p targets Fra-1 to inhibit pulmonary fibrosis induced by silica through p53 and PTEN/PI3K/Akt signaling pathway. ENVIRONMENTAL TOXICOLOGY 2022; 37:2019-2032. [PMID: 35499148 DOI: 10.1002/tox.23547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 04/05/2022] [Accepted: 04/10/2022] [Indexed: 06/14/2023]
Abstract
Silica dust particles are representative of air pollution and long-term inhalation of silicon-containing dust through the respiratory tract can cause pulmonary fibrosis. Epithelial-mesenchymal transformation (EMT) plays an important role in the development of fibrosis. This process can relax cell-cell adhesion complexes and enhance cell migration and invasion properties of these cells. Dysregulation of microRNA-34c (miR-34c) is highly correlated with organ fibrosis including pulmonary fibrosis. In this study, we found that miR-34c-5p could alleviate the occurrence and development of silica-mediated EMT. Fos-related antigen 1 was identified as a functional target of miR-34c-5p by bioinformatics analysis and the dual luciferase gene reporting assay. Importantly, chemically induced up-regulation of hsa-miR-34c-5p correlated inversely with the expression of Fra-1 and further exploration found that the miR-34c-5p/Fra-1 axis inhibits the activation of the phosphatase and tensin homolog deleted on chromosome 10/phosphatidylinositol-4,5-bisphosphate3-kinase/protein kinase B (PTEN/PI3K/AKT) signaling pathway. In addition, through interaction with PTEN/p53 it inhibits the proliferation and migration of human bronchial epithelial cells stimulated by silica, and promotes cell apoptosis, thereby preventing EMT. This finding provides a promising biomarker for the diagnosis and prognosis of pulmonary fibrosis. Furthermore, overexpression of miR-34c-5p represents a potential therapeutic approach.
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Affiliation(s)
- Xinru Pang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Haojun Shi
- The second Clinical Medical College, Henan University of Chinese Medicine, Zhengzhou, China
| | - Xiaoshu Chen
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Chao Li
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Bin Shi
- Neck-Shoulder and Lumbocrural Pain Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Abrey J Yeo
- UQ Centre for Clinical Research, The University of Queensland, Brisbane, Australia
| | - Martin F Lavin
- UQ Centre for Clinical Research, The University of Queensland, Brisbane, Australia
| | - Qiang Jia
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Hua Shao
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Juan Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Gongchang Yu
- Neck-Shoulder and Lumbocrural Pain Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
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Clérigo F, Ferreira S, Ladeira C, Marques-Ramos A, Almeida-Silva M, Mendes LA. Cytotoxicity Assessment of Nanoplastics and Plasticizers Exposure in In Vitro Lung Cell Culture Systems—A Systematic Review. TOXICS 2022; 10:toxics10070402. [PMID: 35878307 PMCID: PMC9315584 DOI: 10.3390/toxics10070402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/21/2022] [Accepted: 07/11/2022] [Indexed: 11/16/2022]
Abstract
Emerging contaminants such as nanoplastics (NPs), as well as manufacturing by-products such as plasticizers, have gained global attention and concern due to their limited biodegradability and their potential impact on human health, in particular the effects on respiratory tissue. In parallel, in vitro cell culture techniques are key to the assessment and characterization of toxic effects and cellular mechanisms in different types of tissues and should provide relevant information to understand the hazardous potential of these emergent contaminants. This systematic review presents the main results on the current knowledge of the effects of NPs and plasticizers on lung cells, as assessed with the use of in vitro cell culture techniques. From the selected studies (n = 10), following the PRISMA approach, it was observed that cell viability was the most frequently assessed endpoint and that most studies focused on epithelial cells and exposures to polystyrene (PS). It was observed that exposure to NPs or plasticizers induces cytotoxicity in a dose-dependent manner, regardless of the size of the NPs. Furthermore, there is evidence that the characteristics of NPs can affect the toxic response by promoting the association with other organic compounds. As such, further in vitro studies focusing on the combination of NPs with plasticizers will be essential for the understanding of mechanisms of NPs toxicity.
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Affiliation(s)
- Fabiana Clérigo
- H&TRC—Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (F.C.); (S.F.); (C.L.); (A.M.-R.); (M.A.-S.)
| | - Sandra Ferreira
- H&TRC—Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (F.C.); (S.F.); (C.L.); (A.M.-R.); (M.A.-S.)
| | - Carina Ladeira
- H&TRC—Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (F.C.); (S.F.); (C.L.); (A.M.-R.); (M.A.-S.)
- Comprehensive Health Research Center (CHRC), Universidade NOVA de Lisboa, 1150-082 Lisbon, Portugal
| | - Ana Marques-Ramos
- H&TRC—Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (F.C.); (S.F.); (C.L.); (A.M.-R.); (M.A.-S.)
| | - Marina Almeida-Silva
- H&TRC—Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (F.C.); (S.F.); (C.L.); (A.M.-R.); (M.A.-S.)
- Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, ao Km 139.7, Bobadela-Loures, 2695-066 Lisbon, Portugal
| | - Luís André Mendes
- H&TRC—Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (F.C.); (S.F.); (C.L.); (A.M.-R.); (M.A.-S.)
- Animal Ecology Group (GEA), Universidade de Vigo, 36210 Vigo, Spain
- Correspondence:
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Lakhdar R, Mumby S, Abubakar-Waziri H, Porter A, Adcock IM, Chung KF. Lung toxicity of particulates and gaseous pollutants using ex-vivo airway epithelial cell culture systems. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 305:119323. [PMID: 35447256 DOI: 10.1016/j.envpol.2022.119323] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 04/14/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
Air pollution consists of a multi-faceted mix of gases and ambient particulate matter (PM) with diverse organic and non-organic chemical components that contribute to increasing morbidity and mortality worldwide. In particular, epidemiological and clinical studies indicate that respiratory health is adversely affected by exposure to air pollution by both causing and worsening (exacerbating) diseases such as chronic obstructive pulmonary disease (COPD), asthma, interstitial pulmonary fibrosis and lung cancer. The molecular mechanisms of air pollution-induced pulmonary toxicity have been evaluated with regards to different types of PM of various sizes and concentrations with single and multiple exposures over different time periods. These data provide a plausible interrelationship between cellular toxicity and the activation of multiple biological processes including proinflammatory responses, oxidative stress, mitochondrial oxidative damage, autophagy, apoptosis, cell genotoxicity, cellular senescence and epithelial-mesenchymal transition. However, these molecular changes have been studied predominantly in cell lines rather than in primary bronchial or nasal cells from healthy subjects or those isolated from patients with airways disease. In addition, they have been conducted under different cell culture conditions and generally in submerged culture rather than the more relevant air-liquid interface culture and with a variety of air pollutant exposure protocols. Cell types may respond differentially to pollution delivered as an aerosol rather than being bathed in media containing agglomerations of particles. As a result, the actual pathophysiological pathways activated by different PMs in primary cells from the airways of healthy and asthmatic subjects remains unclear. This review summarises the literature on the different methodologies utilised in studying the impact of submicron-sized pollutants on cells derived from the respiratory tract with an emphasis on data obtained from primary human cell. We highlight the critical underlying molecular mechanisms that may be important in driving disease processes in response to air pollution in vivo.
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Affiliation(s)
- Ramzi Lakhdar
- National Heart and Lung Institute and *Department of Materials, Imperial College London, London, SW3 6LY, United Kingdom.
| | - Sharon Mumby
- National Heart and Lung Institute and *Department of Materials, Imperial College London, London, SW3 6LY, United Kingdom.
| | - Hisham Abubakar-Waziri
- National Heart and Lung Institute and *Department of Materials, Imperial College London, London, SW3 6LY, United Kingdom.
| | - Alexandra Porter
- National Heart and Lung Institute and *Department of Materials, Imperial College London, London, SW3 6LY, United Kingdom.
| | - Ian M Adcock
- National Heart and Lung Institute and *Department of Materials, Imperial College London, London, SW3 6LY, United Kingdom.
| | - Kian Fan Chung
- National Heart and Lung Institute and *Department of Materials, Imperial College London, London, SW3 6LY, United Kingdom.
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Sousa AH, Pereira JPG, Malaquias AC, Sagica FDES, de Oliveira EHC. Intracellular accumulation and DNA damage caused by methylmercury in glial cells. J Biochem Mol Toxicol 2022; 36:e23170. [PMID: 35822649 DOI: 10.1002/jbt.23170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 05/14/2022] [Accepted: 07/01/2022] [Indexed: 11/10/2022]
Abstract
Mercury is widely used in industrial and extractive processes, and the improper disposal of waste or products containing this metal produces a significant impact on ecosystems, causing adverse effects on living organisms, including humans. Exposure to methylmercury, a highly toxic organic compound, causes important neurological and developmental impairments. Recently, the genotoxicity of mercurial compounds has gained prominence as one of the possible mechanisms associated with the neurological effects of mercury, mostly by disturbing the mitotic spindle and causing chromosome loss. In this sense, it is important to investigate if these compounds can also cause direct damage to DNA, such as single and double-strand breaks. Thus, the aim of this study was to investigate the cytotoxic and genotoxic potential of methylmercury in cell lines derived from neurons (B103) and glia (C6), exposed to methylmercury (MeHg) for 24 h, by analyzing cell viability, metabolic activity, and damage to DNA and chromosomes. We found that in comparison to the neuronal cell line, glial cells showed higher tolerance to MeHg, and therefore a higher LC50 and consequent higher intracellular accumulation of Hg, which led to the occurrence of several genotoxic effects, as evidenced by the presence of micronuclei, bridges, sprouts, and chromosomal aberrations.
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Affiliation(s)
- Aline H Sousa
- Programa de Pós Graduação em Epidemiologia e vigilância em Saúde, Instituto Evandro Chagas, Ananindeua, Pará, Brazil.,Seção de Bacteriologia, Instituto Evandro Chagas, Ananindeua, Pará, Brazil
| | - João P G Pereira
- Programa de Pós Graduação em Epidemiologia e vigilância em Saúde, Instituto Evandro Chagas, Ananindeua, Pará, Brazil.,Seção de Meio Ambiente, Instituto Evandro Chagas, Ananindeua, Pará, Brazil
| | - Allan C Malaquias
- Faculdade de Medicina, Universidade Federal do Pará, Campus de Altamira, Pará, Brazil
| | | | - Edivaldo H C de Oliveira
- Seção de Meio Ambiente, Instituto Evandro Chagas, Ananindeua, Pará, Brazil.,Faculdade de Ciências Naturais, ICEN, Universidade Federal do Pará, Belém, Pará, Brazil
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Lung Models to Evaluate Silver Nanoparticles’ Toxicity and Their Impact on Human Health. NANOMATERIALS 2022; 12:nano12132316. [PMID: 35808152 PMCID: PMC9268743 DOI: 10.3390/nano12132316] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 12/17/2022]
Abstract
Nanomaterials (NMs) solve specific problems with remarkable results in several industrial and scientific areas. Among NMs, silver nanoparticles (AgNPs) have been extensively employed as drug carriers, medical diagnostics, energy harvesting devices, sensors, lubricants, and bioremediation. Notably, they have shown excellent antimicrobial, anticancer, and antiviral properties in the biomedical field. The literature analysis shows a selective cytotoxic effect on cancer cells compared to healthy cells, making its potential application in cancer treatment evident, increasing the need to study the potential risk of their use to environmental and human health. A large battery of toxicity models, both in vitro and in vivo, have been established to predict the harmful effects of incorporating AgNPs in these numerous areas or those produced due to involuntary exposure. However, these models often report contradictory results due to their lack of standardization, generating controversy and slowing the advances in nanotoxicology research, fundamentally by generalizing the biological response produced by the AgNP formulations. This review summarizes the last ten years’ reports concerning AgNPs’ toxicity in cellular respiratory system models (e.g., mono-culture models, co-cultures, 3D cultures, ex vivo and in vivo). In turn, more complex cellular models represent in a better way the physical and chemical barriers of the body; however, results should be used carefully so as not to be misleading. The main objective of this work is to highlight current models with the highest physiological relevance, identifying the opportunity areas of lung nanotoxicology and contributing to the establishment and strengthening of specific regulations regarding health and the environment.
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De Marchi J, Cé R, Bruschi L, Santos M, Paese K, Lavayen V, Klamt F, Pohlmann A, Guterres S. Triclosan and ⍺-bisabolol–loaded nanocapsule functionalized with ascorbic acid as a dry powder formulation against A549 lung cancer cells. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Meldrum K, Evans SJ, Vogel U, Tran L, Doak SH, Clift MJD. The influence of exposure approaches to in vitro lung epithelial barrier models to assess engineered nanomaterial hazard. Nanotoxicology 2022; 16:114-134. [PMID: 35343373 DOI: 10.1080/17435390.2022.2051627] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Exposure to engineered nanomaterials (ENM) poses a potential health risk to humans through long-term, repetitive low-dose exposures. Currently, this is not commonplace within in vitro lung cell cultures. Therefore, the purpose of this study was to consider the optimal exposure approach toward determining the stability, sensitivity and validity of using in vitro lung cell mono- and co-cultures to determine ENM hazard. A range of exposure scenarios were conducted with DQ12 (previously established as a positive particle control) (historic and re-activated), TiO2 (JRC NM-105) and BaSO4 (JRC NM-220) on both monocultures of A549 cells as well as co-cultures of A549 cells and differentiated THP-1 cells. Cell cultures were exposed to either a single, or a repeated exposure over 24, 48- or 72-hours at in vivo extrapolated concentrations of 0-5.2 µg/cm2, 0-6 µg/cm2 and 0-1µg/cm2. The focus of this study was the pro-inflammatory, cytotoxic and genotoxic response elicited by these ENMs. Exposure to DQ12 caused pro-inflammatory responses after 48 hours repeat exposures, as well as increases in micronucleus frequency. Neither TiO2 nor BaSO4 elicited a pro-inflammatory response at this time point. However, there was induction of IL-6 after 24 hours TiO2 exposure. In conclusion, it is important to consider the appropriateness of the positive control implemented, the cell culture model, the time of exposure as well as the type of exposure (bolus or fractionated) before establishing if an in vitro model is appropriate to determine the level of response to the specific ENM of interest.
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Affiliation(s)
- Kirsty Meldrum
- In Vitro Toxicology Group, Swansea University, Swansea, UK
| | | | - Ulla Vogel
- The National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Lang Tran
- Institute of Occupational Medicine (IOM), Edinburgh, UK
| | - Shareen H Doak
- In Vitro Toxicology Group, Swansea University, Swansea, UK
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41
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Albano GD, Montalbano AM, Gagliardo R, Anzalone G, Profita M. Impact of Air Pollution in Airway Diseases: Role of the Epithelial Cells (Cell Models and Biomarkers). Int J Mol Sci 2022; 23:2799. [PMID: 35269941 PMCID: PMC8911203 DOI: 10.3390/ijms23052799] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/18/2022] [Accepted: 02/26/2022] [Indexed: 02/05/2023] Open
Abstract
Biomedical research is multidisciplinary and often uses integrated approaches performing different experimental models with complementary functions. This approach is important to understand the pathogenetic mechanisms concerning the effects of environmental pollution on human health. The biological activity of the substances is investigated at least to three levels using molecular, cellular, and human tissue models. Each of these is able to give specific answers to experimental problems. A scientific approach, using biological methods (wet lab), cell cultures (cell lines or primary), isolated organs (three-dimensional cell cultures of primary epithelial cells), and animal organisms, including the human body, aimed to understand the effects of air pollution on the onset of diseases of the respiratory system. Biological methods are divided into three complementary models: in vitro, ex vivo, and in vivo. In vitro experiments do not require the use of whole organisms (in vivo study), while ex vivo experiments use isolated organs or parts of organs. The concept of complementarity and the informatic support are useful tools to organize, analyze, and interpret experimental data, with the aim of discussing scientific notions with objectivity and rationality in biology and medicine. In this scenario, the integrated and complementary use of different experimental models is important to obtain useful and global information that allows us to identify the effect of inhaled pollutants on the incidence of respiratory diseases in the exposed population. In this review, we focused our attention on the impact of air pollution in airway diseases with a rapid and descriptive analysis on the role of epithelium and on the experimental cell models useful to study the effect of toxicants on epithelial cells.
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Affiliation(s)
- Giusy Daniela Albano
- Institute of Translational Pharmacology, National Research Council of Italy (CNR), 00133 Rome, Italy; (G.D.A.); (A.M.M.); (R.G.)
- Institute for Biomedical Research and Innovation (IRIB), National Research Council of Italy (CNR), 90100 Palermo, Italy;
| | - Angela Marina Montalbano
- Institute of Translational Pharmacology, National Research Council of Italy (CNR), 00133 Rome, Italy; (G.D.A.); (A.M.M.); (R.G.)
- Institute for Biomedical Research and Innovation (IRIB), National Research Council of Italy (CNR), 90100 Palermo, Italy;
| | - Rosalia Gagliardo
- Institute of Translational Pharmacology, National Research Council of Italy (CNR), 00133 Rome, Italy; (G.D.A.); (A.M.M.); (R.G.)
- Institute for Biomedical Research and Innovation (IRIB), National Research Council of Italy (CNR), 90100 Palermo, Italy;
| | - Giulia Anzalone
- Institute for Biomedical Research and Innovation (IRIB), National Research Council of Italy (CNR), 90100 Palermo, Italy;
| | - Mirella Profita
- Institute of Translational Pharmacology, National Research Council of Italy (CNR), 00133 Rome, Italy; (G.D.A.); (A.M.M.); (R.G.)
- Institute for Biomedical Research and Innovation (IRIB), National Research Council of Italy (CNR), 90100 Palermo, Italy;
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Tulen CBM, Wang Y, Beentjes D, Jessen PJJ, Ninaber DK, Reynaert NL, van Schooten FJ, Opperhuizen A, Hiemstra PS, Remels AHV. Dysregulated mitochondrial metabolism upon cigarette smoke exposure in various human bronchial epithelial cell models. Dis Model Mech 2022; 15:dmm049247. [PMID: 35344036 PMCID: PMC8990921 DOI: 10.1242/dmm.049247] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 12/29/2021] [Indexed: 01/13/2023] Open
Abstract
Exposure to cigarette smoke (CS) is the primary risk factor for developing chronic obstructive pulmonary disease. The impact of CS exposure on the molecular mechanisms involved in mitochondrial quality control in airway epithelial cells is incompletely understood. Undifferentiated or differentiated primary bronchial epithelial cells were acutely/chronically exposed to whole CS (WCS) or CS extract (CSE) in submerged or air-liquid interface conditions. Abundance of key regulators controlling mitochondrial biogenesis, mitophagy and mitochondrial dynamics was assessed. Acute exposure to WCS or CSE increased the abundance of components of autophagy and receptor-mediated mitophagy in all models. Although mitochondrial content and dynamics appeared to be unaltered in response to CS, changes in both the molecular control of mitochondrial biogenesis and a shift toward an increased glycolytic metabolism were observed in particular in differentiated cultures. These alterations persisted, at least in part, after chronic exposure to WCS during differentiation and upon subsequent discontinuation of WCS exposure. In conclusion, smoke exposure alters the regulation of mitochondrial metabolism in airway epithelial cells, but observed alterations may differ between various culture models used. This article has an associated First Person interview with the joint first authors of the paper.
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Affiliation(s)
- Christy B. M. Tulen
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - Ying Wang
- Department of Pulmonology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
| | - Daan Beentjes
- Department of Pulmonology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
| | - Phyllis J. J. Jessen
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - Dennis K. Ninaber
- Department of Pulmonology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
| | - Niki L. Reynaert
- Department of Respiratory Medicine, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
- Primary Lung Culture Facility, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - Frederik-Jan van Schooten
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - Antoon Opperhuizen
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
- Office of Risk Assessment and Research, Netherlands Food and Consumer Product Safety Authority, PO Box 8433, 3503 RK Utrecht, The Netherlands
| | - Pieter S. Hiemstra
- Department of Pulmonology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
| | - Alexander H. V. Remels
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
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Wu W, Choi EJ, Wang B, Zhang K, Adam A, Huang G, Tunkle L, Huang P, Goru R, Imirowicz I, Henry L, Lee I, Dong J, Wang T, Bao X. Changes of Small Non-coding RNAs by Severe Acute Respiratory Syndrome Coronavirus 2 Infection. Front Mol Biosci 2022; 9:821137. [PMID: 35281271 PMCID: PMC8905365 DOI: 10.3389/fmolb.2022.821137] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/19/2022] [Indexed: 01/11/2023] Open
Abstract
The ongoing pandemic of coronavirus disease 2019 (COVID-19), which results from the rapid spread of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is a significant global public health threat, with molecular mechanisms underlying its pathogenesis largely unknown. In the context of viral infections, small non-coding RNAs (sncRNAs) are known to play important roles in regulating the host responses, viral replication, and host-virus interaction. Compared with other subfamilies of sncRNAs, including microRNAs (miRNAs) and Piwi-interacting RNAs (piRNAs), tRNA-derived RNA fragments (tRFs) are relatively new and emerge as a significant regulator of host-virus interactions. Using T4 PNK‐RNA‐seq, a modified next-generation sequencing (NGS), we found that sncRNA profiles in human nasopharyngeal swabs (NPS) samples are significantly impacted by SARS-CoV-2. Among impacted sncRNAs, tRFs are the most significantly affected and most of them are derived from the 5′-end of tRNAs (tRF5). Such a change was also observed in SARS-CoV-2-infected airway epithelial cells. In addition to host-derived ncRNAs, we also identified several small virus-derived ncRNAs (svRNAs), among which a svRNA derived from CoV2 genomic site 346 to 382 (sv-CoV2-346) has the highest expression. The induction of both tRFs and sv-CoV2-346 has not been reported previously, as the lack of the 3′-OH ends of these sncRNAs prevents them to be detected by routine NGS. In summary, our studies demonstrated the involvement of tRFs in COVID-19 and revealed new CoV2 svRNAs.
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Affiliation(s)
- Wenzhe Wu
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, United States
| | - Eun-Jin Choi
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, United States
| | - Binbin Wang
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX, United States
| | - Ke Zhang
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, United States
| | - Awadalkareem Adam
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX, United States
| | - Gengming Huang
- Department of Pathology, The University of Texas Medical Branch, Galveston, TX, United States
| | - Leo Tunkle
- miRcore, Ann Arbor, MI, United States
- Department of Nuclear Engineering and Radiological Sience, University of Michigan, Ann Arbor, MI, United States
- Department of Computer Science, University of Michigan, Ann Arbor, MI, United States
| | - Philip Huang
- miRcore, Ann Arbor, MI, United States
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, United States
| | - Rohit Goru
- miRcore, Ann Arbor, MI, United States
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, United States
| | - Isabella Imirowicz
- miRcore, Ann Arbor, MI, United States
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, United States
| | - Leanne Henry
- miRcore, Ann Arbor, MI, United States
- Department of Computer Science, University of Michigan, Ann Arbor, MI, United States
| | - Inhan Lee
- miRcore, Ann Arbor, MI, United States
| | - Jianli Dong
- Department of Pathology, The University of Texas Medical Branch, Galveston, TX, United States
- The Institute for Human Infections and Immunity, The University of Texas Medical Branch, Galveston, TX, United States
| | - Tian Wang
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX, United States
- Department of Pathology, The University of Texas Medical Branch, Galveston, TX, United States
- The Institute for Human Infections and Immunity, The University of Texas Medical Branch, Galveston, TX, United States
| | - Xiaoyong Bao
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, United States
- The Institute for Human Infections and Immunity, The University of Texas Medical Branch, Galveston, TX, United States
- The Institute of Translational Sciences, The University of Texas Medical Branch, Galveston, TX, United States
- *Correspondence: Xiaoyong Bao,
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Grytting VS, Chand P, Låg M, Øvrevik J, Refsnes M. The pro-inflammatory effects of combined exposure to diesel exhaust particles and mineral particles in human bronchial epithelial cells. Part Fibre Toxicol 2022; 19:14. [PMID: 35189914 PMCID: PMC8862321 DOI: 10.1186/s12989-022-00455-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 02/04/2022] [Indexed: 12/19/2022] Open
Abstract
Background People are exposed to ambient particulate matter (PM) from multiple sources simultaneously in both environmental and occupational settings. However, combinatory effects of particles from different sources have received little attention in experimental studies. In the present study, the pro-inflammatory effects of combined exposure to diesel exhaust particles (DEP) and mineral particles, two common PM constituents, were explored in human lung epithelial cells.
Methods Particle-induced secretion of pro-inflammatory cytokines (CXCL8 and IL-1β) and changes in expression of genes related to inflammation (CXCL8, IL-1α, IL-1β and COX-2), redox responses (HO-1) and xenobiotic metabolism (CYP1A1 and CYP1B1) were assessed in human bronchial epithelial cells (HBEC3-KT) after combined exposure to different samples of DEP and mineral particles. Combined exposure was also conducted using lipophilic organic extracts of DEP to assess the contribution of soluble organic chemicals. Moreover, the role of the aryl hydrocarbon receptor (AhR) pathway was assessed using an AhR-specific inhibitor (CH223191). Results Combined exposure to DEP and mineral particles induced increases in pro-inflammatory cytokines and expression of genes related to inflammation and redox responses in HBEC3-KT cells that were greater than either particle sample alone. Moreover, robust increases in the expression of CYP1A1 and CYP1B1 were observed. The effects were most pronounced after combined exposure to α-quartz and DEP from an older fossil diesel, but enhanced responses were also observed using DEP generated from a modern biodiesel blend and several stone particle samples of mixed mineral composition. Moreover, the effect of combined exposure on cytokine secretion could also be induced by lipophilic organic extracts of DEP. Pre-incubation with an AhR-specific inhibitor reduced the particle-induced cytokine responses, suggesting that the effects were at least partially dependent on AhR. Conclusions Exposure to DEP and mineral particles in combination induces enhanced pro-inflammatory responses in human bronchial epithelial cells compared with exposure to the individual particle samples. The effects are partly mediated through an AhR-dependent pathway and lipophilic organic chemicals in DEP appear to play a central role. These possible combinatory effects between different sources and components of PM warrant further attention and should also be considered when assessing measures to reduce PM-induced health effects. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-022-00455-0.
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Moreira A, Müller M, Costa PF, Kohl Y. Advanced In Vitro Lung Models for Drug and Toxicity Screening: The Promising Role of Induced Pluripotent Stem Cells. Adv Biol (Weinh) 2021; 6:e2101139. [PMID: 34962104 DOI: 10.1002/adbi.202101139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/25/2021] [Indexed: 12/24/2022]
Abstract
The substantial socioeconomic burden of lung diseases, recently highlighted by the disastrous impact of the coronavirus disease 2019 (COVID-19) pandemic, accentuates the need for interventive treatments capable of decelerating disease progression, limiting organ damage, and contributing to a functional tissue recovery. However, this is hampered by the lack of accurate human lung research models, which currently fail to reproduce the human pulmonary architecture and biochemical environment. Induced pluripotent stem cells (iPSCs) and organ-on-chip (OOC) technologies possess suitable characteristics for the generation of physiologically relevant in vitro lung models, allowing for developmental studies, disease modeling, and toxicological screening. Importantly, these platforms represent potential alternatives for animal testing, according to the 3Rs (replace, reduce, refine) principle, and hold promise for the identification and approval of new chemicals under the European REACH (registration, evaluation, authorization and restriction of chemicals) framework. As such, this review aims to summarize recent progress made in human iPSC- and OOC-based in vitro lung models. A general overview of the present applications of in vitro lung models is presented, followed by a summary of currently used protocols to generate different lung cell types from iPSCs. Lastly, recently developed iPSC-based lung models are discussed.
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Affiliation(s)
| | - Michelle Müller
- Department of Bioprocessing and Bioanalytics, Fraunhofer Institute for Biomedical Engineering IBMT, Joseph-von-Fraunhofer-Weg 1, 66280, Sulzbach, Germany
| | - Pedro F Costa
- BIOFABICS, Rua Alfredo Allen 455, Porto, 4200-135, Portugal
| | - Yvonne Kohl
- Department of Bioprocessing and Bioanalytics, Fraunhofer Institute for Biomedical Engineering IBMT, Joseph-von-Fraunhofer-Weg 1, 66280, Sulzbach, Germany.,Postgraduate Course for Toxicology and Environmental Toxicology, Medical Faculty, University of Leipzig, Johannisallee 28, 04103, Leipzig, Germany
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Wu W, Choi EJ, Wang B, Zhang K, Adam A, Huang G, Tunkle L, Huang P, Goru R, Imirowicz I, Henry L, Lee I, Dong J, Wang T, Bao X. Changes of small non-coding RNAs by severe acute respiratory syndrome coronavirus 2 infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2021. [PMID: 34981063 DOI: 10.1101/2021.12.16.472982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The ongoing pandemic of coronavirus disease 2019 (COVID-19), which results from the rapid spread of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is a significant global public health threat, with molecular mechanisms underlying its pathogenesis largely unknown. Small non-coding RNAs (sncRNAs) are known to play important roles in almost all biological processes. In the context of viral infections, sncRNAs have been shown to regulate the host responses, viral replication, and host-virus interaction. Compared with other subfamilies of sncRNAs, including microRNAs (miRNAs) and Piwi-interacting RNAs (piRNAs), tRNA-derived RNA fragments (tRFs) are relatively new and emerge as a significant regulator of host-virus interactions. Using T4 PNK-RNA-seq, a modified next-generation sequencing (NGS), we recently found that nasopharyngeal swabs (NPS) samples from SARS-CoV-2 positive and negative subjects show a significant difference in sncRNA profiles. There are about 166 SARS-CoV-2-impacted sncRNAs. Among them, tRFs are the most significantly affected and almost all impacted tRFs are derived from the 5'-end of tRNAs (tRF5). Using a modified qRT-PCR, which was recently developed to specifically quantify tRF5s by isolating the tRF signals from its corresponding parent tRNA signals, we validated that tRF5s derived from tRNA GluCTC (tRF5-GluCTC), LysCTT (tRF5-LysCTT), ValCAC (tRF5-ValCAC), CysGCA (tRF5-CysGCA) and GlnCTG (tRF5-GlnCTG) are enhanced in NPS samples of SARS-CoV2 patients and SARS-CoV2-infected airway epithelial cells. In addition to host-derived ncRNAs, we also identified several sncRNAs derived from the virus (svRNAs), among which a svRNA derived from CoV2 genomic site 346 to 382 (sv-CoV2-346) has the highest expression. The induction of both tRFs and sv-CoV2-346 has not been reported previously, as the lack of the 3'-OH ends of these sncRNAs prevents them to be detected by routine NGS. In summary, our studies demonstrated the involvement of tRFs in COVID-19 and revealed new CoV2 svRNAs.
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Kim JW, Jeong MH, Kim GE, Han YB, Park YJ, Chung KH, Kim HR. Comparison of 3D airway models for the assessment of fibrogenic chemicals. Toxicol Lett 2021; 356:100-109. [PMID: 34902520 DOI: 10.1016/j.toxlet.2021.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 11/25/2021] [Accepted: 12/09/2021] [Indexed: 11/24/2022]
Abstract
Lung epithelial cells and fibroblasts play key roles in pulmonary fibrosis and are involved in fibrotic signaling and production of the extracellular matrix (ECM), respectively. Recently, 3D airway models consisting of both cell types have been developed to evaluate the fibrotic responses while facilitating cell-cell crosstalk. This study aimed to evaluate the fibrotic responses in these models using different fibrogenic agents, which are known as key events in adverse outcome pathways of pulmonary fibrosis. We quantified cell injury and several sequential steps in fibrogenesis, including inflammation, the epithelial-mesenchymal transition (EMT), fibroblast activation, and ECM accumulation, using two different 3D airway models, the EpiAirway™-full thickness (Epi/FT) and MucilAir™-human fibroblast (Mucil/HF) models. In the Epi/FT model, fibrogenic agents induced the expression of inflammation and EMT-associated markers, while in the Mucil/HF model, they induced fibroblast activation and ECM accumulation. Using this information, we conducted gene ontology term network analysis. In the Epi/FT model, the terms associated with cell migration and response to stimulus made up a large part of the network. In the Mucil/HF model, the terms associated with ECM organization and cell differentiation and proliferation constituted a great part of the network. Collectively, our data suggest that polyhexamethyleneguanidine phosphate and bleomycin induce different responses in the two 3D airway models. While Epi/FT was associated with inflammatory/EMT-associated responses, Mucil/HF was associated with fibroblast-associated responses. This study will provide an important basis for selecting proper 3D airway models and fibrogenic agents to further research or screen chemicals causing inhalation toxicity.
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Affiliation(s)
- Jun Woo Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Mi Ho Jeong
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Ga Eun Kim
- College of Pharmacy, Daegu Catholic University, 13-13, Hayang-ro, Hayang-eup, Gyeongsan, Gyeongsangbuk-do, 38430, Republic of Korea
| | - Yu Bin Han
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Yong Joo Park
- College of Pharmacy, Kyungsung University, Busan, 48434, Republic of Korea
| | - Kyu Hyuck Chung
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea.
| | - Ha Ryong Kim
- College of Pharmacy, Daegu Catholic University, 13-13, Hayang-ro, Hayang-eup, Gyeongsan, Gyeongsangbuk-do, 38430, Republic of Korea.
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In Vitro Toxicity of Industrially Relevant Engineered Nanoparticles in Human Alveolar Epithelial Cells: Air-Liquid Interface versus Submerged Cultures. NANOMATERIALS 2021; 11:nano11123225. [PMID: 34947574 PMCID: PMC8703991 DOI: 10.3390/nano11123225] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/19/2021] [Accepted: 11/23/2021] [Indexed: 12/14/2022]
Abstract
Diverse industries have already incorporated within their production processes engineered nanoparticles (ENP), increasing the potential risk of worker inhalation exposure. In vitro models have been widely used to investigate ENP toxicity. Air-liquid interface (ALI) cell cultures have been emerging as a valuable alternative to submerged cultures as they are more representative of the inhalation exposure to airborne nano-sized particles. We compared the in vitro toxicity of four ENP used as raw materials in the advanced ceramics sector in human alveolar epithelial-like cells cultured under submerged or ALI conditions. Submerged cultures were exposed to ENP liquid suspensions or to aerosolised ENP at ALI. Toxicity was assessed by determining LDH release, WST-1 metabolisation and DNA damage. Overall, cells were more sensitive to ENP cytotoxic effects when cultured and exposed under ALI. No significant cytotoxicity was observed after 24 h exposure to ENP liquid suspensions, although aerosolised ENP clearly affected cell viability and LDH release. In general, all ENP increased primary DNA damage regardless of the exposure mode, where an increase in DNA strand-breaks was only detected under submerged conditions. Our data show that at relevant occupational concentrations, the selected ENP exert mild toxicity to alveolar epithelial cells and exposure at ALI might be the most suitable choice when assessing ENP toxicity in respiratory models under realistic exposure conditions.
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Sriram K, Insel MB, Insel PA. Inhaled β2 Adrenergic Agonists and Other cAMP-Elevating Agents: Therapeutics for Alveolar Injury and Acute Respiratory Disease Syndrome? Pharmacol Rev 2021; 73:488-526. [PMID: 34795026 DOI: 10.1124/pharmrev.121.000356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 08/15/2021] [Indexed: 12/15/2022] Open
Abstract
Inhaled long-acting β-adrenergic agonists (LABAs) and short-acting β-adrenergic agonists are approved for the treatment of obstructive lung disease via actions mediated by β2 adrenergic receptors (β2-ARs) that increase cellular cAMP synthesis. This review discusses the potential of β2-AR agonists, in particular LABAs, for the treatment of acute respiratory distress syndrome (ARDS). We emphasize ARDS induced by pneumonia and focus on the pathobiology of ARDS and actions of LABAs and cAMP on pulmonary and immune cell types. β2-AR agonists/cAMP have beneficial actions that include protection of epithelial and endothelial cells from injury, restoration of alveolar fluid clearance, and reduction of fibrotic remodeling. β2-AR agonists/cAMP also exert anti-inflammatory effects on the immune system by actions on several types of immune cells. Early administration is likely critical for optimizing efficacy of LABAs or other cAMP-elevating agents, such as agonists of other Gs-coupled G protein-coupled receptors or cyclic nucleotide phosphodiesterase inhibitors. Clinical studies that target lung injury early, prior to development of ARDS, are thus needed to further assess the use of inhaled LABAs, perhaps combined with inhaled corticosteroids and/or long-acting muscarinic cholinergic antagonists. Such agents may provide a multipronged, repurposing, and efficacious therapeutic approach while minimizing systemic toxicity. SIGNIFICANCE STATEMENT: Acute respiratory distress syndrome (ARDS) after pulmonary alveolar injury (e.g., certain viral infections) is associated with ∼40% mortality and in need of new therapeutic approaches. This review summarizes the pathobiology of ARDS, focusing on contributions of pulmonary and immune cell types and potentially beneficial actions of β2 adrenergic receptors and cAMP. Early administration of inhaled β2 adrenergic agonists and perhaps other cAMP-elevating agents after alveolar injury may be a prophylactic approach to prevent development of ARDS.
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Affiliation(s)
- Krishna Sriram
- Departments of Pharmacology (K.S., P.A.I.) and Medicine (P.A.I.), University of California San Diego, La Jolla, California; Department of Medicine (M.B.I.) University of Arizona, Tucson, Arizona
| | - Michael B Insel
- Departments of Pharmacology (K.S., P.A.I.) and Medicine (P.A.I.), University of California San Diego, La Jolla, California; Department of Medicine (M.B.I.) University of Arizona, Tucson, Arizona
| | - Paul A Insel
- Departments of Pharmacology (K.S., P.A.I.) and Medicine (P.A.I.), University of California San Diego, La Jolla, California; Department of Medicine (M.B.I.) University of Arizona, Tucson, Arizona
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50
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Bassan A, Alves VM, Amberg A, Anger LT, Beilke L, Bender A, Bernal A, Cronin MT, Hsieh JH, Johnson C, Kemper R, Mumtaz M, Neilson L, Pavan M, Pointon A, Pletz J, Ruiz P, Russo DP, Sabnis Y, Sandhu R, Schaefer M, Stavitskaya L, Szabo DT, Valentin JP, Woolley D, Zwickl C, Myatt GJ. In silico approaches in organ toxicity hazard assessment: Current status and future needs for predicting heart, kidney and lung toxicities. COMPUTATIONAL TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 20:100188. [PMID: 35721273 PMCID: PMC9205464 DOI: 10.1016/j.comtox.2021.100188] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The kidneys, heart and lungs are vital organ systems evaluated as part of acute or chronic toxicity assessments. New methodologies are being developed to predict these adverse effects based on in vitro and in silico approaches. This paper reviews the current state of the art in predicting these organ toxicities. It outlines the biological basis, processes and endpoints for kidney toxicity, pulmonary toxicity, respiratory irritation and sensitization as well as functional and structural cardiac toxicities. The review also covers current experimental approaches, including off-target panels from secondary pharmacology batteries. Current in silico approaches for prediction of these effects and mechanisms are described as well as obstacles to the use of in silico methods. Ultimately, a commonly accepted protocol for performing such assessment would be a valuable resource to expand the use of such approaches across different regulatory and industrial applications. However, a number of factors impede their widespread deployment including a lack of a comprehensive mechanistic understanding, limited in vitro testing approaches and limited in vivo databases suitable for modeling, a limited understanding of how to incorporate absorption, distribution, metabolism, and excretion (ADME) considerations into the overall process, a lack of in silico models designed to predict a safe dose and an accepted framework for organizing the key characteristics of these organ toxicants.
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Affiliation(s)
- Arianna Bassan
- Innovatune srl, Via Giulio Zanon 130/D, 35129 Padova, Italy
| | - Vinicius M. Alves
- The National Institute of Environmental Health Sciences, Division of the National Toxicology Program, Research Triangle Park, NC 27709, United States
| | - Alexander Amberg
- Sanofi, R&D Preclinical Safety Frankfurt, Industriepark Hoechst, D-65926 Frankfurt am Main, Germany
| | - Lennart T. Anger
- Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, United States
| | - Lisa Beilke
- Toxicology Solutions Inc., San Diego, CA, United States
| | - Andreas Bender
- AI and Data Analytics, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge, UK
- Centre for Molecular Informatics, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United States
| | | | - Mark T.D. Cronin
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, L3 3AF, UK
| | - Jui-Hua Hsieh
- The National Institute of Environmental Health Sciences, Division of the National Toxicology Program, Research Triangle Park, NC 27709, United States
| | | | - Raymond Kemper
- Nuvalent, One Broadway, 14th floor, Cambridge, MA 02142, United States
| | - Moiz Mumtaz
- Agency for Toxic Substances and Disease Registry, US Department of Health and Human Services, Atlanta, GA, United States
| | - Louise Neilson
- Broughton Nicotine Services, Oak Tree House, West Craven Drive, Earby, Lancashire BB18 6JZ UK
| | - Manuela Pavan
- Innovatune srl, Via Giulio Zanon 130/D, 35129 Padova, Italy
| | - Amy Pointon
- Functional and Mechanistic Safety, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| | - Julia Pletz
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, L3 3AF, UK
| | - Patricia Ruiz
- Agency for Toxic Substances and Disease Registry, US Department of Health and Human Services, Atlanta, GA, United States
| | - Daniel P. Russo
- The Rutgers Center for Computational and Integrative Biology, Camden, NJ 08102, United States
- Department of Chemistry, Rutgers University, Camden, NJ 08102, United States
| | - Yogesh Sabnis
- UCB Biopharma SRL, Chemin du Foriest, B-1420 Braine-l’Alleud, Belgium
| | - Reena Sandhu
- SafeDose Ltd., 20 Dundas Street West, Suite 921, Toronto, Ontario M5G2H1, Canada
| | - Markus Schaefer
- Sanofi, R&D Preclinical Safety Frankfurt, Industriepark Hoechst, D-65926 Frankfurt am Main, Germany
| | - Lidiya Stavitskaya
- US Food and Drug Administration, Center for Drug Evaluation and Research, Silver Spring, MD 20993, USA
| | | | | | - David Woolley
- ForthTox Limited, PO Box 13550, Linlithgow, EH49 7YU, UK
| | - Craig Zwickl
- Transendix LLC, 1407 Moores Manor, Indianapolis, IN 46229, United States
| | - Glenn J. Myatt
- Instem, 1393 Dublin Road, Columbus, OH 43215, United States
- Corresponding author: (G.J. Myatt)
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