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Kurtz M, Lezón C, Masci I, Boyer P, Brites F, Bonetto J, Bozal C, Álvarez L, Tasat D. Air pollution induces morpho-functional, biochemical and biomechanical vascular dysfunction in undernourished rats. Food Chem Toxicol 2024; 190:114777. [PMID: 38824989 DOI: 10.1016/j.fct.2024.114777] [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: 03/19/2024] [Revised: 05/08/2024] [Accepted: 05/29/2024] [Indexed: 06/04/2024]
Abstract
Air pollution (gases and particulate matter -PM) and child undernutrition are globally recognized stressors with significant consequences. PM and its components breach the respiratory alveolar-capillary barrier, entering the vasculature transporting not only harmful particles and its mediators but, altering vascular paracrine and autocrine functions. The aim of this study was to investigate the effects of Residual Oil Fly Ash (ROFA), on the vasculature of young animals with nutritional growth retardation (NGR). Weanling rats were fed a diet restricted 20% (NGR) compared to ad libitum intake (control-C) for 4 weeks. Rats were intranasally instilled with 1 mg/kg BW of ROFA. After 24h exposure, histological and immunohistochemical, biochemical and contractile response to NA/ACh were evaluated in aortas. ROFA induced changes in the tunica media of the aorta in all groups regarding thickness, muscular cells and expression of Connexin-43. ROFA increased TGF-β1 and decreased eNOs levels and calcium channels in C and NGR animals. An increment in cytokines IL-6 and IL-10 was observed in C, with no changes in NGR. ROFA exposure altered the vascular contractile capacity. In conclusion, ROFA exposure could increase the risk for CVD through the alteration of vascular biochemical parameters, a possible step of the endothelial dysfunction.
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Affiliation(s)
- Melisa Kurtz
- Laboratorio de Bio-Toxicología Ambiental, Instituto de Tecnologías Emergentes y Ciencias Aplicadas, Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín- CONICET, Buenos Aires, Argentina.
| | - Christian Lezón
- Cátedra de Fisiología, Facultad de Odontología, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Ivana Masci
- Laboratorio de Bio-Toxicología Ambiental, Instituto de Tecnologías Emergentes y Ciencias Aplicadas, Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín- CONICET, Buenos Aires, Argentina
| | - Patricia Boyer
- Cátedra de Fisiología, Facultad de Odontología, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Fernando Brites
- Laboratorio de Lípidos y Aterosclerosis, Departamento de Bioquímica Clínica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Julián Bonetto
- Laboratorio de Bio-Toxicología Ambiental, Instituto de Tecnologías Emergentes y Ciencias Aplicadas, Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín- CONICET, Buenos Aires, Argentina
| | - Carola Bozal
- Cátedra de Histología y Embriología, Facultad de Odontología, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Laura Álvarez
- Laboratorio de Efectos Biológicos de Contaminantes Ambientales, Departamento de Bioquímica Humana, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Deborah Tasat
- Laboratorio de Bio-Toxicología Ambiental, Instituto de Tecnologías Emergentes y Ciencias Aplicadas, Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín- CONICET, Buenos Aires, Argentina; Cátedra de Histología y Embriología, Facultad de Odontología, Universidad de Buenos Aires, Buenos Aires, Argentina
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2
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McClellan SA, Wright R, Muhammed F, Hazlett LD. Impact of Airborne Exposure to PM 10 Increases Susceptibility to P. aeruginosa Infection. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:722. [PMID: 38928968 PMCID: PMC11203766 DOI: 10.3390/ijerph21060722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024]
Abstract
The effects of exposure to airborne particulate matter with a size of 10 μm or less (PM10) on C57BL/6 mouse corneas, their response to Pseudomonas aeruginosa (PA) infection, and the protective effects of SKQ1 were determined. C57BL/6 mouse corneas receiving PBS or SKQ1 were exposed to control (air) or PM10 for 2 weeks, infected, and the disease was documented by clinical score, PMN quantitation, bacterial plate count, RT-PCR and Western blot. PBS-treated, PM10-exposed corneas did not differ at 1 day postinfection (dpi), but exhibited earlier (3 dpi) corneal thinning compared to controls. By 3 dpi, PM10 significantly increased corneal mRNA levels of several pro-inflammatory cytokines, but decreased IL-10, NQO1, GR1, GPX4, and Nrf2 over control. SKQ1 reversed these effects and Western blot selectively confirmed the RT-PCR results. PM10 resulted in higher viable bacterial plate counts at 1 and 3 dpi, but SKQ1 reduced them at 3 dpi. PM10 significantly increased MPO in the cornea at 3 dpi and was reduced by SKQ1. SKQ1, used as an adjunctive treatment to moxifloxacin, was not significantly different from moxifloxacin alone. Exposure to PM10 increased the susceptibility of C57BL/6 to PA infection; SKQ1 significantly reversed these effects, but was not effective as an adjunctive treatment.
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Affiliation(s)
| | | | | | - Linda D. Hazlett
- Department of Ophthalmology, Visual and Anatomical Sciences, School of Medicine, Wayne State University, Detroit, MI 48201, USA; (S.A.M.); (R.W.); (F.M.)
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Cary CM, Fournier SB, Adams S, Wang X, Yurkow EJ, Stapleton PA. Single pulmonary nanopolystyrene exposure in late-stage pregnancy dysregulates maternal and fetal cardiovascular function. Toxicol Sci 2024; 199:149-159. [PMID: 38366927 PMCID: PMC11057520 DOI: 10.1093/toxsci/kfae019] [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] [Indexed: 02/19/2024] Open
Abstract
Large-scale production and waste of plastic materials have resulted in widespread environmental contamination by the breakdown product of bulk plastic materials to micro- and nanoplastics (MNPs). The small size of these particles enables their suspension in the air, making pulmonary exposure inevitable. Previous work has demonstrated that xenobiotic pulmonary exposure to nanoparticles during gestation leads to maternal vascular impairments, as well as cardiovascular dysfunction within the fetus. Few studies have assessed the toxicological consequences of maternal nanoplastic (NP) exposure; therefore, the objective of this study was to assess maternal and fetal health after a single maternal pulmonary exposure to polystyrene NP in late gestation. We hypothesized that this acute exposure would impair maternal and fetal cardiovascular function. Pregnant rats were exposed to nanopolystyrene on gestational day 19 via intratracheal instillation. 24 h later, maternal and fetal health outcomes were evaluated. Cardiovascular function was assessed in dams using vascular myography ex vivo and in fetuses in vivo function was measured via ultrasound. Both fetal and placental weight were reduced after maternal exposure to nanopolystyrene. Increased heart weight and vascular dysfunction in the aorta were evident in exposed dams. Maternal exposure led to vascular dysfunction in the radial artery of the uterus, a resistance vessel that controls blood flow to the fetoplacental compartment. Function of the fetal heart, fetal aorta, and umbilical artery after gestational exposure was dysregulated. Taken together, these data suggest that exposure to NPs negatively impacts maternal and fetal health, highlighting the concern of MNPs exposure on pregnancy and fetal development.
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Affiliation(s)
- C M Cary
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - S B Fournier
- Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, New Jersey 08854, USA
| | - S Adams
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - X Wang
- Molecular Imaging Core, Rutgers University, Piscataway, New Jersey 08854, USA
| | - E J Yurkow
- Molecular Imaging Core, Rutgers University, Piscataway, New Jersey 08854, USA
| | - P A Stapleton
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
- Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, New Jersey 08854, USA
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4
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Jia W, Fu Y, Zhang N, Zhang N, Wang T, Wang Z, Zhang N, Xu J, Yang X, Zhang Q, Li C, Zhang X, Yang W, Han B, Zhang L, Tang N, Bai Z. Ambient PM 2.5-bound polycyclic aromatic hydrocarbons (PAHs) associated with pro-thrombotic biomarkers among young healthy adults: A 16 times repeated measurements panel study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169433. [PMID: 38128672 DOI: 10.1016/j.scitotenv.2023.169433] [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: 07/18/2023] [Revised: 11/13/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
Studies have shown that the cardio/cerebrovascular toxicity of ambient PM2.5 is related to its bound polycyclic aromatic hydrocarbons (PAHs). Currently, only a few studies have reported the relationship between PM2.5-bound PAHs and promoted blood coagulation and thrombosis, but there isn't a consistent conclusion. Therefore, we conducted a prospective panel study to investigate the association. Thirty-three young healthy adults participated in sixteen repeated visits from 2014 to 2018 in Tianjin, China. During each visit, three pro-thrombotic biomarkers: ADAMTS13 (a disintegrin and metalloproteinase with thrombospondin motif 13), D-dimer and Myeloperoxidase (MPO) were measured. Before each visit, ambient PM2.5 samples were daily collected for one week. Sixteen PAHs were determined using Gas Chromatography-Mass Spectrometer, and the positive matrix factorization (PMF) model was applied to identify the sources. Linear mixed-effects models were fitted to investigate the associations between PM2.5-bound PAHs exposure and the biomarkers. Thirteen time-metrics were defined to identify significant time points of PM2.5-bound PAHs' effects. We observed that the increase of PM2.5-bound PAHs exposure was significantly associated with reduced ADAMTS13, elevated D-dimer and MPO. At lag0, each 5.7 ng/m3 increase in Benzo[j]fluoranthene and per 3.4 ng/m3 increase Dibenz[a,h]anthracene could make a maximum change of -19.08 % in ADAMTS13 and 132.60 % in D-dimer. Additionally, per 16.43 ng/m3 increase in Chrysene could lead to a maximum elevation of 32.14 % in MPO at lag4. The PM2.5-bound PAHs often triggered more significant changes at lag 3,4 and 6. The ambient PM2.5-bound PAHs originated from six sources: coal combustion (43.10 %), biomass combustion (20.77 %), diesel emission (14.78 %), gasoline emission (10.95 %), industrial emission (7.58 %), and cooking emission (2.83 %). The greatest contributors to alterations in ADAMTS13, D-dimer and MPO are industrial emission (-48.43 %), biomass combustion (470.32 %) and diesel emission (13.14 %) at lag4. Our findings indicated that short-term exposure to ambient PM2.5-bound PAHs can induce alterations of pro-thrombotic biomarkers among healthy adults.
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Affiliation(s)
- Wenhui Jia
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin 300070, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Yucong Fu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin 300070, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Nan Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin 300070, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Ningyu Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin 300070, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Tong Wang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin 300070, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Zhiyu Wang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin 300070, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Nan Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Jia Xu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xueli Yang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin 300070, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Qiang Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin 300070, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Changping Li
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin 300070, China
| | - Xumei Zhang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin 300070, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Wen Yang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Bin Han
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Liwen Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin 300070, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China.
| | - Naijun Tang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition, and Public Health, Tianjin Medical University, Tianjin 300070, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Zhipeng Bai
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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5
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Marchini T. Redox and inflammatory mechanisms linking air pollution particulate matter with cardiometabolic derangements. Free Radic Biol Med 2023; 209:320-341. [PMID: 37852544 DOI: 10.1016/j.freeradbiomed.2023.10.396] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/27/2023] [Accepted: 10/15/2023] [Indexed: 10/20/2023]
Abstract
Air pollution is the largest environmental risk factor for disease and premature death. Among the different components that are present in polluted air, fine particulate matter below 2.5 μm in diameter (PM2.5) has been identified as the main hazardous constituent. PM2.5 mainly arises from fossil fuel combustion during power generation, industrial processes, and transportation. Exposure to PM2.5 correlates with enhanced mortality risk from cardiovascular diseases (CVD), such as myocardial infarction and stroke. Over the last decade, it has been increasingly suggested that PM2.5 affects CVD already at the stage of risk factor development. Among the multiple biological mechanisms that have been described, the interplay between oxidative stress and inflammation has been consistently highlighted as one of the main drivers of pulmonary, systemic, and cardiovascular effects of PM2.5 exposure. In this context, PM2.5 uptake by tissue-resident immune cells in the lung promotes oxidative and inflammatory mediators release that alter tissue homeostasis at remote locations. This pathway is central for PM2.5 pathogenesis and might account for the accelerated development of risk factors for CVD, including obesity and diabetes. However, transmission and end-organ mechanisms that explain PM2.5-induced impaired function in metabolic active organs are not completely understood. In this review, the main features of PM2.5 physicochemical characteristics related to PM2.5 ability to induce oxidative stress and inflammation will be presented. Hallmark and recent epidemiological and interventional studies will be summarized and discussed in the context of current air quality guidelines and legislation, knowledge gaps, and inequities. Lastly, mechanistic studies at the intersection between redox metabolism, inflammation, and function will be discussed, with focus on heart and adipose tissue alterations. By offering an integrated analysis of PM2.5-induced effects on cardiometabolic derangements, this review aims to contribute to a better understanding of the pathogenesis and potential interventions of air pollution-related CVD.
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Affiliation(s)
- Timoteo Marchini
- Vascular Immunology Laboratory, Department of Cardiology and Angiology, University Heart Center Freiburg-Bad Krozingen, Faculty of Medicine, University of Freiburg, 79106, Freiburg, Germany; Universidad de Buenos Aires, CONICET, Instituto de Bioquímica y Medicina Molecular Prof. Alberto Boveris (IBIMOL), Facultad de Farmacia y Bioquímica, C1113AAD, Buenos Aires, Argentina.
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6
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Somayajulu M, McClellan SA, Muhammed F, Wright R, Hazlett LD. PM 10 and Pseudomonas aeruginosa: effects on corneal epithelium. Front Cell Infect Microbiol 2023; 13:1240903. [PMID: 37868351 PMCID: PMC10585254 DOI: 10.3389/fcimb.2023.1240903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 09/20/2023] [Indexed: 10/24/2023] Open
Abstract
Purpose In vivo data indicate that mouse corneas exposed to PM10 showed early perforation and thinning after infection with Pseudomonas aeruginosa. To understand the mechanisms underlying this finding, we tested the effects of PM10 and the mitochondria targeted anti-oxidant SKQ1 in immortalized human corneal epithelial cells (HCET) that were challenged with Pseudomonas aeruginosa strain 19660. Methods Mouse corneas were infected with strain 19660 after a 2 week whole-body exposure to PM10 or control air and assessed by clinical scores, slit lamp photography and western blot. HCET were exposed to 100μg/ml PM10 for 24h before challenge with strain 19660 (MOI 20). A subset of cells were pre-treated with 50nM SKQ1 for 1h before PM10 exposure. Phase contrast microscopy was used to study cell morphology, cell viability was measured by an MTT assay, and ROS by DCFH-DA. Levels of pro-inflammatory markers and anti-oxidant enzymes were evaluated by RT-PCR, western blot and ELISA. Reduced glutathione (GSH) and malondialdehyde (MDA) levels were evaluated by assay kits. Results In vivo, whole body exposure to PM10 vs. control air exposed mouse corneas showed early perforation and/or corneal thinning at 3 days post infection, accompanied by increased TNF-α and decreased SOD2 protein levels. In vitro, PM10 induced a dose dependent reduction in cell viability of HCET and significantly increased mRNA levels of pro-inflammatory molecules compared to control. Exposure to PM10 before bacterial challenge further amplified the reduction in cell viability and GSH levels. Furthermore, PM10 exposure also exacerbated the increase in MDA and ROS levels and phase contrast microscopy revealed more rounded cells after strain 19660 challenge. PM10 exposure also further increased the mRNA and protein levels of pro-inflammatory molecules, while anti-inflammatory IL-10 was decreased. SKQ1 reversed the rounded cell morphology observed by phase contrast microscopy, increased levels of MDA, ROS and pro-inflammatory molecules, and restored IL-10. Conclusions PM10 induces decreased cell viability, oxidative stress and inflammation in HCET and has an additive effect upon bacterial challenge. SKQ1 protects against oxidative stress and inflammation induced by PM10 after bacterial challenge by reversing these effects. The findings provide insight into mechanisms underlying early perforation and thinning observed in infected corneas of PM10 exposed mice.
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Affiliation(s)
| | | | | | | | - Linda D. Hazlett
- Department of Ophthalmology, Visual and Anatomical Sciences, Wayne State University, School of Medicine, Detroit, MI, United States
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Guo C, Zhao X, Ma R, Zhu L, Chen Y, Yang Z, Cai Z, Sun Z, Li Y. Silica nanoparticles promoted pro-inflammatory macrophage and foam cell transformation via ROS/PPARγ/NF-κB signaling. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 881:163430. [PMID: 37059130 DOI: 10.1016/j.scitotenv.2023.163430] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 04/06/2023] [Accepted: 04/07/2023] [Indexed: 06/01/2023]
Abstract
Experimental evidence has pointed out silica nanoparticles (SiNPs) possessing a proatherogenic capability. However, the interplay between SiNPs and macrophages in the pathogenesis of atherosclerosis was poorly understood. Here, we demonstrated SiNPs could promote macrophage adhesion to endothelial cells, accompanied by elevated Vcam1 and Mcp1. Upon SiNPs stimuli, macrophages manifested enhanced phagocytic activity and a pro-inflammatory phenotype, as reflected by the transcriptional determination of M1/M2-related biomarkers. In particular, our data certified the increased macrophage M1 subset facilitated more lipid accumulation and resultant foam cell transformation in comparison to the M2 phenotype. More importantly, the mechanistic investigations revealed ROS-mediated PPARγ/NF-κB signaling was a key contributor to the above phenomena. That was, SiNPs caused ROS accumulation in macrophages, resulting in the deactivation of PPARγ, nuclear translocation of NF-κB, ultimately contributing to macrophage phenotype shift toward M1 and foam cell transformation. Collectively, we first revealed SiNPs facilitated pro-inflammatory macrophage and foam cell transformation via ROS/PPARγ/NF-κB signaling. These data would provide new insight into the atherogenic property of SiNPs in a macrophage model.
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Affiliation(s)
- Caixia Guo
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Xinying Zhao
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Ru Ma
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Lingnan Zhu
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Yueyue Chen
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Zhu Yang
- State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong, China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong, China
| | - Zhiwei Sun
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yanbo Li
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China.
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Hasegawa Y, Okamura T, Nakajima H, Kitagawa N, Majima S, Okada H, Senmaru T, Ushigome E, Nakanishi N, Hamaguchi M, Takano H, Fukui M. Metabolic outcomes and changes in innate immunity induced by diesel exhaust particles airway exposure and high-fat high-sucrose diet. Life Sci 2023; 326:121794. [PMID: 37224953 DOI: 10.1016/j.lfs.2023.121794] [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: 08/30/2022] [Revised: 05/16/2023] [Accepted: 05/16/2023] [Indexed: 05/26/2023]
Abstract
AIMS Epidemiological studies have shown that exposure to diesel exhaust particles (DEP) is associated with metabolic diseases. We used mice with nonalcoholic fatty liver disease (NAFLD) caused by a high-fat, high-sucrose diet (HFHSD), which mimics a Western diet, to investigate the mechanism of NAFLD exacerbation via changes in innate immunity in the lungs by airway exposure to DEP. MAIN METHODS Six-week-old C57BL6/J male mice were fed HFHSD, and DEP was administered endotracheally once a week for eight weeks. The histology, gene expression, innate immunity cells in the lung and liver, and the serum inflammatory cytokine levels, were investigated. KEY FINDINGS Under the HFHSD, DEP increased blood glucose levels, serum lipid levels, and NAFLD activity scores, and also the expression of genes associated with inflammation in the lungs and liver. DEP caused an increase in ILC1s, ILC2s, ILC3s, and M1 macrophages in the lungs and a marked increase in ILC1s, ILC3s, M1 macrophages, and natural killer cells in the liver, while ILC2 levels were not changed. Furthermore, DEP caused high levels of inflammatory cytokines in the serum. SIGNIFICANCE Chronic exposure to DEP in HFHSD-fed mice increased inflammatory cells involved in innate immunity in the lungs and raised local inflammatory cytokine levels. This inflammation spread throughout the body, suggesting the association with the progression of NAFLD via increased inflammatory cells involved in innate immunity and inflammatory cytokine levels in the liver. These findings contribute to a better understanding of the role of innate immunity in air pollution-related systemic diseases, especially metabolic diseases.
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Affiliation(s)
- Yuka Hasegawa
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Takuro Okamura
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Hanako Nakajima
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Nobuko Kitagawa
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Saori Majima
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Hiroshi Okada
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Takafumi Senmaru
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Emi Ushigome
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Naoko Nakanishi
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Masahide Hamaguchi
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan.
| | - Hirohisa Takano
- Graduate School of Global Environmental Studies, Kyoto University, Kyoto, 615-8530, Japan; Institute for International Academic Research, Kyoto University of Advanced Science, Kyoto 615-8577, Japan
| | - Michiaki Fukui
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
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Ji SM, Choi JS, Lee JY, Kim S, Bae WY, Jang YW, Kim JE, Lee SH, Nam S, Jeong JW. Mild exposure to fine particulate matter promotes angiogenesis in non-small cell lung carcinoma. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 329:121715. [PMID: 37120000 DOI: 10.1016/j.envpol.2023.121715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/06/2023]
Abstract
Fine particulate matter (PM2.5) is associated with public health problems worldwide. Especially, PM2.5 induces epigenetic and microenvironmental changes in lung cancer. Angiogenesis is important for the development and growth of cancer and is mediated by angiogenic factors, including vascular endothelial growth factor. However, the effects of mild PM2.5 exposure on angiogenesis in lung cancer remain unclear. In this study, we examined angiogenic effects using relatively lower concentrations of PM2.5 than in other studies and found that PM2.5 increased angiogenic activities in both endothelial cells and non-small cell lung carcinoma cells. PM2.5 also promoted the growth and angiogenesis of lung cancer via the induction of hypoxia-inducible factor-1α (HIF-1α) in a xenograft mouse tumor model. Angiogenic factors, including vascular endothelial growth factor (VEGF), were highly expressed in lung cancer patients in countries with high PM2.5 levels in the atmosphere, and high expression of VEGF in lung cancer patients lowered the survival rate. Collectively, these results provide new insight into the mechanisms by which mild exposure to PM2.5 is involved in HIF-1α-mediated angiogenesis in lung cancer patients.
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Affiliation(s)
- Su Min Ji
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Jae-Sun Choi
- Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea; Clinical Research Institute, Kyung Hee University Medical Center, Seoul, 02447, Republic of Korea
| | - Ji Young Lee
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Sungyeon Kim
- Department of Genome Medicine and Science, AI Convergence Center for Medical Science, Gachon Institute of Genome Medicine and Science, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, 21565, Republic of Korea
| | - Woom-Yee Bae
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea; Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Ye Won Jang
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Ja-Eun Kim
- Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea; Department of Pharmacology, College of Medicine, Kyung Hee Univeristy, Seoul, 02447, Republic of Korea
| | - Seung Hyeun Lee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, College of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Seungyoon Nam
- Department of Genome Medicine and Science, AI Convergence Center for Medical Science, Gachon Institute of Genome Medicine and Science, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, 21565, Republic of Korea
| | - Joo-Won Jeong
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul, 02447, Republic of Korea; Department of Anatomy and Neurobiology, College of Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea.
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10
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Della Guardia L, Wang L. Fine particulate matter induces adipose tissue expansion and weight gain: Pathophysiology. Obes Rev 2023; 24:e13552. [PMID: 36700515 DOI: 10.1111/obr.13552] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 11/25/2022] [Accepted: 01/08/2023] [Indexed: 01/27/2023]
Abstract
Dysregulations in energy balance represent a major driver of obesity. Recent evidence suggests that environmental factors also play a pivotal role in inducing weight gain. Chronic exposure to fine particulate matter (PM2.5 ) is associated with white adipose tissue (WAT) expansion in animals and higher rates of obesity in humans. This review discusses metabolic adaptions in central and peripheral tissues that promote energy storage and WAT accumulation in PM2.5 -exposed animals and humans. Chronic PM2.5 exposure produces inflammation and leptin resistance in the hypothalamus, decreasing energy expenditure and increasing food intake. PM2.5 promotes the conversion of brown adipocytes toward the white phenotype, resulting in decreased energy expenditure. The development of inflammation in WAT can stimulate adipogenesis and hampers catecholamine-induced lipolysis. PM2.5 exposure affects the thyroid, reducing the release of thyroxine and tetraiodothyronine. In addition, PM2.5 exposure compromises skeletal muscle fitness by inhibiting Nitric oxide (NO)-dependent microvessel dilation and impairing mitochondrial oxidative capacity, with negative effects on energy expenditure. This evidence suggests that pathological alterations in the hypothalamus, brown adipose tissue, WAT, thyroid, and skeletal muscle can alter energy homeostasis, increasing lipid storage and weight gain in PM2.5 -exposed animals and humans. Further studies will enrich this pathophysiological model.
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Affiliation(s)
- Lucio Della Guardia
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Ling Wang
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan, China
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11
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Ohashi K, Hayashida A, Nozawa A, Matsumura K, Ito S. Human vasculature-on-a-chip with macrophage-mediated endothelial activation: The biological effect of aerosol from heated tobacco products on monocyte adhesion. Toxicol In Vitro 2023; 89:105582. [PMID: 36933580 DOI: 10.1016/j.tiv.2023.105582] [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: 12/21/2022] [Revised: 02/28/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023]
Abstract
Heated tobacco products (HTPs) are expected to have the potential to reduce risks of smoking-associated cardiovascular disease (CVD). However, mechanism-based investigations of the effect of HTPs on atherosclerosis remain insufficient and further studies under human-relevant situations are desired for deeper understanding of the reduced risk potential of HTPs. In this study, we first developed an in vitro model of monocyte adhesion by considering macrophage-derived proinflammatory cytokine-mediated endothelial activation using an organ-on-a-chip (OoC), which provided great opportunities to mimic major aspects of human physiology. Then biological activities of aerosol from three different types of HTPs in terms of monocyte adhesion were compared with that of cigarette smoke (CS). Our model showed that the effective concentration ranges of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were close to the actual condition in CVD pathogenesis. The model also showed that monocyte adhesion was less induced by each HTP aerosol than CS, which may be caused by less proinflammatory cytokine secretion. In summary, our vasculature-on-a-chip model assessed the difference in biological effects between cigarettes and HTPs, and suggested a reduced risk potential of HTPs for atherosclerosis.
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Affiliation(s)
- Kazuhiro Ohashi
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama 227-8512, Kanagawa, Japan.
| | - Ayaka Hayashida
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama 227-8512, Kanagawa, Japan.
| | - Atsuko Nozawa
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama 227-8512, Kanagawa, Japan.
| | - Kazushi Matsumura
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama 227-8512, Kanagawa, Japan.
| | - Shigeaki Ito
- Scientific Product Assessment Center, R&D Group, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama 227-8512, Kanagawa, Japan.
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12
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Indirect mediators of systemic health outcomes following nanoparticle inhalation exposure. Pharmacol Ther 2022; 235:108120. [PMID: 35085604 PMCID: PMC9189040 DOI: 10.1016/j.pharmthera.2022.108120] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 01/19/2022] [Indexed: 02/07/2023]
Abstract
The growing field of nanoscience has shed light on the wide diversity of natural and anthropogenic sources of nano-scale particulates, raising concern as to their impacts on human health. Inhalation is the most robust route of entry, with nanoparticles (NPs) evading mucociliary clearance and depositing deep into the alveolar region. Yet, impacts from inhaled NPs are evident far outside the lung, particularly on the cardiovascular system and highly vascularized organs like the brain. Peripheral effects are partly explained by the translocation of some NPs from the lung into the circulation; however, other NPs largely confined to the lung are still accompanied by systemic outcomes. Omic research has only just begun to inform on the complex myriad of molecules released from the lung to the blood as byproducts of pulmonary pathology. These indirect mediators are diverse in their molecular make-up and activity in the periphery. The present review examines systemic outcomes attributed to pulmonary NP exposure and what is known about indirect pathological mediators released from the lung into the circulation. Further focus was directed to outcomes in the brain, a highly vascularized region susceptible to acute and longer-term outcomes. Findings here support the need for big-data toxicological studies to understand what drives these health outcomes and better predict, circumvent, and treat the potential health impacts arising from NP exposure scenarios.
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13
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Liang N, Emami S, Patten KT, Valenzuela AE, Wallis CD, Wexler AS, Bein KJ, Lein PJ, Taha AY. Chronic exposure to traffic-related air pollution reduces lipid mediators of linoleic acid and soluble epoxide hydrolase in serum of female rats. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 93:103875. [PMID: 35550873 PMCID: PMC9353974 DOI: 10.1016/j.etap.2022.103875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
Chronic exposure to traffic-related air pollution (TRAP) is known to promote systemic inflammation, which is thought to underlie respiratory, cardiovascular, metabolic and neurological disorders. It is not known whether chronic TRAP exposure dampens inflammation resolution, the homeostatic process for stopping inflammation and repairing damaged cells. In vivo, inflammation resolution is facilitated by bioactive lipid mediators known as oxylipins, which are derived from the oxidation of polyunsaturated fatty acids. To understand the effects of chronic TRAP exposure on lipid-mediated inflammation resolution pathways, we measured total (i.e. free+bound) pro-inflammatory and pro-resolving lipid mediators in serum of female rats exposed to TRAP or filtered air (FA) for 14 months. Compared to rats exposed to FA, TRAP-exposed rats showed a significant 36-48% reduction in fatty acid alcohols, specifically, 9-hydroxyoctadecadienoic acid (9-HODE), 11,12-dihydroxyeicosatetraenoic acid (11,12-DiHETE) and 16,17-dihydroxydocosapentaenoic acid (16, 17-DiHDPA). The decrease in fatty acid diols (11,12-DiHETE and 16, 17-DiHDPA) corresponded to a significant 34-39% reduction in the diol to epoxide ratio, a marker of soluble epoxide hydrolase activity; this enzyme is typically upregulated during inflammation. The findings demonstrate that 14 months exposure to TRAP reduced pro-inflammatory 9-HODE concentration and dampened soluble epoxide hydrolase activation, suggesting adaptive immune changes in lipid mediator pathways involved in inflammation resolution.
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Affiliation(s)
- Nuanyi Liang
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California Davis, Davis, CA, USA
| | - Shiva Emami
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California Davis, Davis, CA, USA
| | - Kelley T Patten
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Anthony E Valenzuela
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA
| | | | - Anthony S Wexler
- Mechanical and Aerospace Engineering, University of California, Davis, CA 95616, USA; Air Quality Research Center, University of California, Davis, Davis, CA, USA
| | - Keith J Bein
- Air Quality Research Center, University of California, Davis, Davis, CA, USA; Center for Health and the Environment, University of California, Davis, Davis, CA, USA
| | - Pamela J Lein
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Ameer Y Taha
- Department of Food Science and Technology, College of Agriculture and Environmental Sciences, University of California Davis, Davis, CA, USA; West Coast Metabolomics Center, Genome Center, University of California Davis, Davis, CA, USA.
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14
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Valderrama A, Ortiz-Hernández P, Agraz-Cibrián JM, Tabares-Guevara JH, Gómez DM, Zambrano-Zaragoza JF, Taborda NA, Hernandez JC. Particulate matter (PM 10) induces in vitro activation of human neutrophils, and lung histopathological alterations in a mouse model. Sci Rep 2022; 12:7581. [PMID: 35534522 PMCID: PMC9083477 DOI: 10.1038/s41598-022-11553-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/26/2022] [Indexed: 01/03/2023] Open
Abstract
The epidemiological association between exposure to particulate matter (PM10) and various respiratory and cardiovascular problems is well known, but the mechanisms driving these effects remain unclear. Neutrophils play an essential role in immune defense against foreign agents and also participate in the development of inflammatory responses. However, the role of these cells in the PM10 induced inflammatory response is not yet fully established. Thus, this study aims to evaluate the effect of PM10 on the neutrophil-mediated inflammatory response. For this, neutrophils from healthy adult human donors were in vitro exposed to different concentrations of PM10. The cell viability and cytotoxic activity were evaluated by MTT. LDH, propidium iodide and reactive oxygen species (ROS) were quantified by flow cytometry. Interleukin 8 (IL-8) expression, peptidyl arginine deiminase 4 (PAD4), myeloperoxidase (MPO), and neutrophil elastase (NE) expression were measured by RT-PCR. IL-8 was also quantified by ELISA. Fluorescence microscopy was used to evaluate neutrophil extracellular traps (NETs) release. The in vivo inflammatory responses were assessed in BALB/c mice exposed to PM10 by histopathology and RT-PCR. The analysis shows that PM10 exposure induced a cytotoxic effect on neutrophils, evidenced by necrosis and LDH release at high PM10 concentrations. ROS production, IL-8, MPO, NE expression, and NETs release were increased at all PM10 concentrations assessed. Neutrophil infiltration in bronchoalveolar lavage fluid (BALF), histopathological changes with inflammatory cell infiltration, and CXCL1 expression were observed in PM10-treated mice. The results suggest that lung inflammation in response to PM10 could be mediated by neutrophils activation. In this case, these cells migrate to the lungs and release pro-inflamatory mediators, including ROS, IL-8, and NETs. Thus, contributing to the exacerbation of respiratory pathologies, such as allergies, infectious and obstructive diseases.
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Affiliation(s)
- Andrés Valderrama
- Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, Medellín, Colombia
| | - Paul Ortiz-Hernández
- Unidad Académica de Ciencias Químico Biológicas y Farmacéuticas, Universidad Autónoma de Nayarit, Tepic, Nayarit, México
| | - Juan Manuel Agraz-Cibrián
- Unidad Académica de Ciencias Químico Biológicas y Farmacéuticas, Universidad Autónoma de Nayarit, Tepic, Nayarit, México
| | | | - Diana M Gómez
- Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, Medellín, Colombia
| | | | - Natalia A Taborda
- Grupo de Investigaciones Biomédicas Uniremington, Programa de Medicina, Facultad de Ciencias de La Salud, Corporación Universitaria Remington, Medellín, Colombia
| | - Juan C Hernandez
- Infettare, Facultad de Medicina, Universidad Cooperativa de Colombia, Medellín, Colombia.
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15
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Choi D, Choi S, Kim KH, Kim K, Chang J, Kim SM, Kim SR, Cho Y, Lee G, Son JS, Park SM. Combined Associations of Physical Activity and Particulate Matter With Subsequent Cardiovascular Disease Risk Among 5‐Year Cancer Survivors. J Am Heart Assoc 2022; 11:e022806. [PMID: 35491990 PMCID: PMC9238603 DOI: 10.1161/jaha.121.022806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background The combined associations of physical activity and particulate matter (PM) with subsequent cardiovascular disease (CVD) risk is yet unclear. Methods and Results The study population consisted of 18 846 cancer survivors who survived for at least 5 years after initial cancer diagnosis from the Korean National Health Insurance Service database. Average PM levels for 4 years were determined in administrative district areas, and moderate‐to‐vigorous physical activity (MVPA) information was acquired from health examination questionnaires. A multivariable Cox proportional hazards model was used to evaluate the risk for CVD. Among patients with low PM with particles ≤2.5 µm (PM2.5; (19.8–25.6 μg/m3) exposure, ≥5 times per week of MVPA was associated with lower CVD risk (adjusted hazard ratio [aHR], 0.77; 95% CI, 0.60–0.99) compared with 0 times per week of MVPA. Also, a higher level of MVPA frequency was associated with lower CVD risk (P for trend=0.028) among cancer survivors who were exposed to low PM2.5 levels. In contrast, ≥5 times per week of MVPA among patients with high PM2.5 (25.8–33.8 μg/m3) exposure was not associated with lower CVD risk (aHR, 0.98; 95% CI, 0.79–1.21). Compared with patients with low PM2.5 and MVPA ≥3 times per week, low PM2.5 and MVPA ≤2 times per week (aHR, 1.26; 95% CI, 1.03–1.55), high PM2.5 and MVPA ≥3 times per week (aHR, 1.34; 95% CI, 1.07–1.67), and high PM2.5 and MVPA ≤2 times per week (aHR, 1.38; 95% CI, 1.12–1.70) was associated with higher CVD risk. Conclusions Cancer survivors who engaged in MVPA ≥5 times per week benefited from lower CVD risk upon low PM2.5 exposure. High levels of PM2.5 exposure may attenuate the risk‐reducing effects of MVPA on the risk of CVD.
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Affiliation(s)
- Daein Choi
- Department of Medicine Mount Sinai Beth IsraelIcahn School of Medicine at Mount Sinai New York NY
| | - Seulggie Choi
- Department of Biomedical Sciences Seoul National University Graduate School Seoul South Korea
| | - Kyae Hyung Kim
- Department of Family Medicine Seoul National University Hospital Seoul South Korea
| | - Kyuwoong Kim
- Division of Cancer Control and Policy National Cancer Control InstituteNational Cancer Center Goyang South Korea
| | - Jooyoung Chang
- Department of Biomedical Sciences Seoul National University Graduate School Seoul South Korea
| | - Sung Min Kim
- Department of Biomedical Sciences Seoul National University Graduate School Seoul South Korea
| | - Seong Rae Kim
- Department of Dermatology Seoul National University Hospital Seoul South Korea
| | - Yoosun Cho
- Total Healthcare CenterKangbuk Samsung HospitalSungkyunkwan University School of Medicine Seoul South Korea
| | - Gyeongsil Lee
- Department of Biomedical Sciences Seoul National University Graduate School Seoul South Korea
- Department of Family Medicine Seoul National University Hospital Seoul South Korea
| | - Joung Sik Son
- Department of Family Medicine Korea University Guro Hospital South Korea
| | - Sang Min Park
- Department of Biomedical Sciences Seoul National University Graduate School Seoul South Korea
- Department of Family Medicine Seoul National University Hospital Seoul South Korea
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16
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Mostovenko E, Saunders S, Muldoon PP, Bishop L, Campen MJ, Erdely A, Ottens AK. Carbon Nanotube Exposure Triggers a Cerebral Peptidomic Response: Barrier Compromise, Neuroinflammation, and a Hyperexcited State. Toxicol Sci 2021; 182:107-119. [PMID: 33892499 DOI: 10.1093/toxsci/kfab042] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The unique physicochemical properties of carbon nanomaterials and their ever-growing utilization generate a serious concern for occupational risk. Pulmonary exposure to these nanoparticles induces local and systemic inflammation, cardiovascular dysfunction, and even cognitive deficits. Although multiple routes of extrapulmonary toxicity have been proposed, the mechanism for and manner of neurologic effects remain minimally understood. Here, we examine the cerebral spinal fluid (CSF)-derived peptidomic fraction as a reflection of neuropathological alterations induced by pulmonary carbon nanomaterial exposure. Male C57BL/6 mice were exposed to 10 or 40 µg of multiwalled carbon nanotubes (MWCNT) by oropharyngeal aspiration. Serum and CSFs were collected 4 h post exposure. An enriched peptide fraction of both biofluids was analyzed using ion mobility-enabled data-independent mass spectrometry for label-free quantification. MWCNT exposure induced a prominent peptidomic response in the blood and CSF; however, correlation between fluids was limited. Instead, we determined that a MWCNT-induced peptidomic shift occurred specific to the CSF with 292 significant responses found that were not in serum. Identified MWCNT-responsive peptides depicted a mechanism involving aberrant fibrinolysis (fibrinopeptide A), blood-brain barrier permeation (homeobox protein A4), neuroinflammation (transmembrane protein 131L) with reactivity by astrocytes and microglia, and a pro-degradative (signal transducing adapter molecule, phosphoglycerate kinase), antiplastic (AF4/FMR2 family member 1, vacuolar protein sorting-associated protein 18) state with the excitation-inhibition balance shifted to a hyperexcited (microtubule-associated protein 1B) phenotype. Overall, the significant pathologic changes observed were consistent with early neurodegenerative disease and were diagnostically reflected in the CSF peptidome.
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Affiliation(s)
- Ekaterina Mostovenko
- Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Samantha Saunders
- Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Pretal P Muldoon
- Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Lindsey Bishop
- Pathology and Physiology Research Branch, National Institute for Occupational Safety and Health, Morgantown, West Virginia 26505, USA
| | - Matthew J Campen
- Department of Pharmaceutical Sciences, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - Aaron Erdely
- Pathology and Physiology Research Branch, National Institute for Occupational Safety and Health, Morgantown, West Virginia 26505, USA
| | - Andrew K Ottens
- Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, Virginia 23298, USA
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17
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Bo Y, Brook JR, Lin C, Chang LY, Guo C, Zeng Y, Yu Z, Tam T, Lau AKH, Lao XQ. Reduced Ambient PM 2.5 Was Associated with a Decreased Risk of Chronic Kidney Disease: A Longitudinal Cohort Study. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:6876-6883. [PMID: 33904723 DOI: 10.1021/acs.est.1c00552] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Many countries have dedicated to the mitigation of air pollution in the past several decades. However, evidence of beneficial effects of air quality improvement on chronic kidney disease (CKD) remains limited. We thus investigated the effects of dynamic changes (including deterioration and improvement) in air quality on the incidence of CKD in a longitudinal study in Taiwan. During 2001-2016, this study recruited a total of 163,197 Taiwanese residents who received at least two standard physical examinations. The level of fine particle matter (PM2.5) was estimated using a high-resolution (1 km2) satellite-based spatio-temporal model. We defined changes of PM2.5 concentrations (ΔPM2.5) as the difference between the two-year average measurements during follow-up and during the immediately preceding visit. The time-dependent Cox regression model was adopted to evaluate the relationships between ΔPM2.5 and the incidence of CKD after adjusting for a series of covariates. The concentrations of PM2.5 in Taiwan peaked around 2004 and began to decrease since 2005. We observed an approximate linear concentration-response relationship of ΔPM2.5 with CKD incidence. Every 5 μg/m3 decrease in the ambient concentration of PM2.5 was associated with a 25% reduced risk of CKD development [hazard ratio (HR): 0.75; 95% CI: 0.73, 0.78]. In conclusion, this study demonstrated that the improvement of PM2.5 air quality might be associated with a lower risk of CKD development. Our findings indicate that reducing air pollution may effectively prevent the development of CKD.
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Affiliation(s)
- Yacong Bo
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Kowloon 999077, Hong Kong, China
| | | | - Changqing Lin
- Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Kowloon 999077, Hong Kong, China
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Kowloon 999077, Hong Kong, China
| | - Ly-Yun Chang
- Gratia Christian College, Kowloon 999077, Hong Kong, China
- Institute of Sociology, Academia Sinica, Taipei 11529, Taiwan
| | - Cui Guo
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Kowloon 999077, Hong Kong, China
| | - Yiqian Zeng
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Kowloon 999077, Hong Kong, China
| | - Zengli Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Zhengzhou University, Zhengzhou 450000, China
| | - Tony Tam
- Department of Sociology, The Chinese University of Hong Kong, Kowloon 999077, Hong Kong, China
| | - Alexis K H Lau
- Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Kowloon 999077, Hong Kong, China
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Kowloon 999077, Hong Kong, China
| | - Xiang Qian Lao
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Kowloon 999077, Hong Kong, China
- Shenzhen Research Institute of The Chinese University of Hong Kong, Shenzhen 518000, China
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18
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Zhu H, Wu Y, Kuang X, Liu H, Guo Z, Qian J, Wang D, Wang M, Chu H, Gong W, Zhang Z. Effect of PM 2.5 exposure on circulating fibrinogen and IL-6 levels: A systematic review and meta-analysis. CHEMOSPHERE 2021; 271:129565. [PMID: 33460893 DOI: 10.1016/j.chemosphere.2021.129565] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 12/19/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Ambient fine particulate matter (PM2.5) pollution poses a great threat on global health. Previous studies have reported that PM2.5 regulates circulating fibrinogen and IL-6 levels in the development of cardiovascular and respiratory disease. However, the correlation between PM2.5 exposure and both biomarkers remains inconsistent. METHODS We searched related articles through PubMed, Web of Science and ScienceDirect. Random effects model was used to obtain a pooled estimate effect of both biomarkers as PM2.5 concentration increased by every 10 μg/m3. Meta-regression analysis, sensitivity analysis and publication bias test were conducted to evaluate the heterogeneity, stability and reliability of this meta-analysis. RESULTS A total of 22 articles were included. Each 10 μg/m3 increase in PM2.5 concentration was significantly correlated with a 1.76% increase in circulating fibrinogen level (95% CI: 0.38%-3.14%, P = 0.013) and a 4.66% increase in IL-6 level (95% CI: 1.14%-8.18%, P = 0.010). Subgroup analysis revealed that high-level PM2.5 exposure had a more significant association with circulating IL-6 level (11.67%, 95% CI: 0.66%-22.69%, P = 0.038) than low-level exposure, but this association was not observed in fibrinogen (2.50%, 95% CI: -0.78%-5.77%, P = 0.135). Sensitivity analysis and publication bias test confirmed the stability of the results. CONCLUSION Circulating fibrinogen and IL-6 significantly increased with exposure to PM2.5, may serve as promising biomarkers for PM2.5-related adverse effects.
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Affiliation(s)
- Huanhuan Zhu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yanling Wu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xingya Kuang
- Department of Occupational Medicine, Yangpu Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hanting Liu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zheng Guo
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jing Qian
- Department of General Surgery, Yizheng Hospital, Nanjing Drum Tower Hospital Group, Yizheng, China
| | - Dafei Wang
- Department of Radiotherapy, Yixing Cancer Hospital, Yixing, China
| | - Meilin Wang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Haiyan Chu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.
| | - Weida Gong
- Department of General Surgery, Yixing People's Hospital, Yixing, China.
| | - Zhengdong Zhang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center of Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.
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19
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Yang BY, Guo Y, Zou Z, Gui Z, Bao WW, Hu LW, Chen G, Jing J, Ma J, Li S, Ma Y, Chen YJ, Dong GH. Exposure to ambient air pollution and visual impairment in children: A nationwide cross-sectional study in China. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124750. [PMID: 33341569 DOI: 10.1016/j.jhazmat.2020.124750] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/27/2020] [Accepted: 11/30/2020] [Indexed: 05/17/2023]
Abstract
Evidence concerning exposure to air pollution and visual impairment is scarce. We evaluated the associations of ambient air pollution with visual impairment and visual acuity levels in Chinese schoolchildren. We recruited 61,995 children from 7 provinces/municipalities across China. Concentrations of air pollutants (i.e., particulate matter with an aerodynamic diameter of ≤ 1.0 µm [PM1], ≤ 2.5 µm [PM2.5], and 10 µm [PM10] as well as nitrogen dioxides [NO2]) were measured using machine learning methods. Visual acuity levels were measured using standard protocols. We used SAS PROC SURVEYLOGISTIC to assess the association between air pollution and visual impairment. An interquartile range increase in PM1, PM2.5, PM10, and NO2 was associated with a 1.133- (95% CI, 1.035-1.240), 1.267- (95% CI, 1.082-1.484), 1.142- (95% CI, 1.019-1.281), and 1.276-fold (95% CI, 1.173-1.388) increased odds of visual impairment, and the associations were stronger in children being boys, older, living in rural areas, and born to parents who had a lower educational level or smoked, compared to their counterparts. These results suggest that exposure to air pollution were positively associated with the odds of visual impairment, and the association may be modified by children's age, sex, and residential area as well as parental education level and cigarette smoking.
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Affiliation(s)
- Bo-Yi Yang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yuming Guo
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne VIC 3004, Australia
| | - Zhiyong Zou
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing 100191, China
| | - Zhaohuan Gui
- Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Wen-Wen Bao
- Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Li-Wen Hu
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Gongbo Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Jin Jing
- Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Jun Ma
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing 100191, China
| | - Shanshan Li
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne VIC 3004, Australia
| | - Yinghua Ma
- Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing 100191, China.
| | - Ya-Jun Chen
- Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Guang-Hui Dong
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
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20
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Engin AB. Combined Toxicity of Metal Nanoparticles: Comparison of Individual and Mixture Particles Effect. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1275:165-193. [PMID: 33539016 DOI: 10.1007/978-3-030-49844-3_7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Toxicity of metal nanoparticles (NPs) are closely associated with increasing intracellular reactive oxygen species (ROS) and the levels of pro-inflammatory mediators. However, NP interactions and surface complexation reactions alter the original toxicity of individual NPs. To date, toxicity studies on NPs have mostly been focused on individual NPs instead of the combination of several species. It is expected that the amount of industrial and highway-acquired NPs released into the environment will further increase in the near future. This raises the possibility that various types of NPs could be found in the same medium, thereby, the adverse effects of each NP either could be potentiated, inhibited or remain unaffected by the presence of the other NPs. After uptake of NPs into the human body from various routes, protein kinases pathways mediate their toxicities. In this context, family of mitogen-activated protein kinases (MAPKs) is mostly efficient. Despite each NP activates almost the same metabolic pathways, the toxicity induced by a single type of NP is different than the case of co-exposure to the combined NPs. The scantiness of toxicological data on NPs combinations displays difficulties to determine, if there is any risk associated with exposure to combined nanomaterials. Currently, in addition to mathematical analysis (Response surface methodology; RSM), the quantitative-structure-activity relationship (QSAR) is used to estimate the toxicity of various metal oxide NPs based on their physicochemical properties and levels applied. In this chapter, it is discussed whether the coexistence of multiple metal NPs alter the original toxicity of individual NP. Additionally, in the part of "Toxicity of diesel emission/exhaust particles (DEP)", the known individual toxicity of metal NPs within the DEP is compared with the data regarding toxicity of total DEP mixture.
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Affiliation(s)
- Ayse Basak Engin
- Department of Toxicology, Faculty of Pharmacy, Gazi University, Ankara, Turkey.
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21
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Kobos L, Shannahan J. Particulate matter inhalation and the exacerbation of cardiopulmonary toxicity due to metabolic disease. Exp Biol Med (Maywood) 2021; 246:822-834. [PMID: 33467887 DOI: 10.1177/1535370220983275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Particulate matter is a significant public health issue in the United States and globally. Inhalation of particulate matter is associated with a number of systemic and organ-specific adverse health outcomes, with the pulmonary and cardiovascular systems being particularly vulnerable. Certain subpopulations are well-recognized as being more susceptible to inhalation exposures, such as the elderly and those with pre-existing respiratory disease. Metabolic syndrome is becoming increasingly prevalent in our society and has known adverse effects on the heart, lungs, and vascular systems. The limited evaluations of individuals with metabolic syndromehave demonstrated that theymay compose a sensitive subpopulation to particulate exposures. However, the toxicological mechanisms responsible for this increased vulnerability are not fully understood. This review evaluates the currently available literature regarding how the response of an individual's pulmonary and cardiovascular systems is influenced by metabolic syndrome and metabolic syndrome-associated conditions such as hypertension, dyslipidemia, and diabetes. Further, we will discuss potential therapeutic agents and targets for the alleviation and treatment of particulate-matter induced metabolic illness. The information reviewed here may contribute to the understanding of metabolic illness as a risk factor for particulate matter exposure and further the development of therapeutic approaches to treat vulnerable subpopulations, such as those with metabolic diseases.
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Affiliation(s)
- Lisa Kobos
- School of Health Sciences, College of Human and Health Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Jonathan Shannahan
- School of Health Sciences, College of Human and Health Sciences, Purdue University, West Lafayette, IN 47907, USA
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22
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Circadian Deregulation as Possible New Player in Pollution-Induced Tissue Damage. ATMOSPHERE 2021. [DOI: 10.3390/atmos12010116] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Circadian rhythms are 24-h oscillations driven by a hypothalamic master oscillator that entrains peripheral clocks in almost all cells, tissues and organs. Circadian misalignment, triggered by industrialization and modern lifestyles, has been linked to several pathological conditions, with possible impairment of the quality or even the very existence of life. Living organisms are continuously exposed to air pollutants, and among them, ozone or particulate matters (PMs) are considered to be among the most toxic to human health. In particular, exposure to environmental stressors may result not only in pulmonary and cardiovascular diseases, but, as it has been demonstrated in the last two decades, the skin can also be affected by pollution. In this context, we hypothesize that chronodistruption can exacerbate cell vulnerability to exogenous damaging agents, and we suggest a possible common mechanism of action in deregulation of the homeostasis of the pulmonary, cardiovascular and cutaneous tissues and in its involvement in the development of pathological conditions.
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23
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Duan X, Zheng L, Zhang X, Wang B, Xiao M, Zhao W, Liu S, Sui G. A Membrane-free Liver-Gut-on-Chip Platform for the Assessment on Dysregulated Mechanisms of Cholesterol and Bile Acid Metabolism Induced by PM 2.5. ACS Sens 2020; 5:3483-3492. [PMID: 33135418 DOI: 10.1021/acssensors.0c01524] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Fine particulate matter (PM2.5)-induced metabolic diseases have attracted a great deal of attention recently. However, the relevant metabolic mechanisms of PM2.5 in vivo have not yet been fully described due to the lack of reliable platforms. Herein, a membrane-free liver-gut-on-chip (L-GOC) platform was developed to investigate metabolism dysregulation induced by PM2.5. A multiple organ system with a liver-gut structure and two circulation paths (L-G and G-L circulation paths) was created, and then cells were exposed to PM2.5 on this platform. Secreted high-density lipoprotein (HDL) levels were detected, which demonstrates that this multiple organ system functioned with normal physiological metabolism at the organ level. Untargeted metabolomic analysis showed that there were 364 metabolites of LO2 cells dysregulated after exposure to PM2.5 at a concentration of 200 μg/mL. Moreover, cholesterol and bile acid metabolism were significantly dysregulated. Further immunofluorescence and ELISA assays confirmed that signal transduction pathways related to cholesterol metabolism (LCAT-CE, PON1-HDL, and SRB1-HDL metabolic pathways) and bile acid metabolism (CYP7A1-CA/CDCA/DCA metabolic pathways) were disturbed. These results indicate that PM2.5 primarily disturbed cholesterol metabolism of the liver and then disrupted bile acid metabolism of the liver (primary bile acid biosynthesis) and gut (secondary bile acid biosynthesis) via related metabolic pathways. These findings may partially explain the metabolic mechanisms of cells triggered by PM2.5 exposure.
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Affiliation(s)
- Xiaoxiao Duan
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, P.R. China
| | - Lulu Zheng
- Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China
| | - Xinlian Zhang
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, P.R. China
| | - Bo Wang
- Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China
| | - Mingming Xiao
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, P.R. China
| | - Wang Zhao
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, P.R. China
| | - Sixiu Liu
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, P.R. China
| | - Guodong Sui
- Shanghai Key laboratory of Atmospheric Particle Pollution Prevention (LAP3), Department of Environmental Science & Engineering, Fudan University, 220 Handan Road, Shanghai 200433, P.R. China
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24
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Shkirkova K, Lamorie-Foote K, Connor M, Patel A, Barisano G, Baertsch H, Liu Q, Morgan TE, Sioutas C, Mack WJ. Effects of ambient particulate matter on vascular tissue: a review. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2020; 23:319-350. [PMID: 32972334 PMCID: PMC7758078 DOI: 10.1080/10937404.2020.1822971] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Fine and ultra-fine particulate matter (PM) are major constituents of urban air pollution and recognized risk factors for cardiovascular diseases. This review examined the effects of PM exposure on vascular tissue. Specific mechanisms by which PM affects the vasculature include inflammation, oxidative stress, actions on vascular tone and vasomotor responses, as well as atherosclerotic plaque formation. Further, there appears to be a greater PM exposure effect on susceptible individuals with pre-existing cardiovascular conditions.
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Affiliation(s)
| | - Krista Lamorie-Foote
- Zilkha Neurogenetic Institute, University of Southern California
- Keck School of Medicine, University of Southern California
| | - Michelle Connor
- Zilkha Neurogenetic Institute, University of Southern California
- Keck School of Medicine, University of Southern California
| | - Arati Patel
- Zilkha Neurogenetic Institute, University of Southern California
- Keck School of Medicine, University of Southern California
| | | | - Hans Baertsch
- Zilkha Neurogenetic Institute, University of Southern California
- Keck School of Medicine, University of Southern California
| | - Qinghai Liu
- Zilkha Neurogenetic Institute, University of Southern California
| | - Todd E. Morgan
- Leonard Davis School of Gerontology, University of Southern California
| | - Constantinos Sioutas
- Department of Civil and Environmental Engineering, Viterbi School of Engineering, University of Southern California
| | - William J. Mack
- Zilkha Neurogenetic Institute, University of Southern California
- Leonard Davis School of Gerontology, University of Southern California
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25
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Valacchi G, Magnani N, Woodby B, Ferreira SM, Evelson P. Particulate Matter Induces Tissue OxInflammation: From Mechanism to Damage. Antioxid Redox Signal 2020; 33:308-326. [PMID: 32443938 DOI: 10.1089/ars.2019.8015] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Significance: Oxidative stress and oxidative damage are central hypothetical mechanisms for the adverse effects of airborne particulate matter (PM). Activation of inflammatory cells capable of generating reactive oxygen and nitrogen species is another proposed damage pathway. Understanding the interplay between these responses can help us understand the adverse health effects attributed to breathing polluted air. Recent Advances: The consequences of PM exposure on different organs are oxidative damage, decreased function, and inflammation, which can lead to the development/exacerbation of proinflammatory disorders. Mitochondrial damage is also an important event in PM-induced cytotoxicity. Critical Issues: Reactive oxygen species (ROS) are generated during phagocytosis of the particles, leading to enhancement of oxidative stress and triggering the inflammatory response. The activation of inflammatory signaling pathways results in the release of cytokines and other mediators, which can further induce ROS production by activating endogenous enzymes, leading to a positive feedback loop, which can aggravate the effects triggered by PM exposure. Future Directions: Further research is required to elucidate the exact mechanisms by which PM exposure results in adverse health effects, in terms of the relationship between the redox responses triggered by the presence of the particles and the inflammation observed in the different organs, so the development/exacerbation of PM-associated health problems can be prevented.
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Affiliation(s)
- Giuseppe Valacchi
- Department of Animal Science, Plants for Human Health Institute, NC Research Campus, NC State University, Kannapolis, North Carolina, USA.,Department of Biomedical and Specialist Surgical Sciences, University of Ferrara, Ferrara, Italy.,Department of Food and Nutrition, Kyung Hee University, Seoul, South Korea
| | - Natalia Magnani
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Química General e Inorgánica, Buenos Aires, Argentina.,CONICET, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Brittany Woodby
- Department of Animal Science, Plants for Human Health Institute, NC Research Campus, NC State University, Kannapolis, North Carolina, USA
| | - Sandra María Ferreira
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Química General e Inorgánica, Buenos Aires, Argentina.,CONICET, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Pablo Evelson
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Química General e Inorgánica, Buenos Aires, Argentina.,CONICET, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
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26
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Alqahtani S, Kobos LM, Xia L, Ferreira C, Franco J, Du X, Shannahan JH. Exacerbation of Nanoparticle-Induced Acute Pulmonary Inflammation in a Mouse Model of Metabolic Syndrome. Front Immunol 2020; 11:818. [PMID: 32457752 PMCID: PMC7221136 DOI: 10.3389/fimmu.2020.00818] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 04/09/2020] [Indexed: 12/15/2022] Open
Abstract
Nanotechnology has the capacity to revolutionize numerous fields and processes, however, exposure-induced health effects are of concern. The majority of nanoparticle (NP) safety evaluations have been performed utilizing healthy models and have demonstrated the potential for pulmonary toxicity. A growing proportion of individuals suffer diseases that may enhance their susceptibility to exposures. Specifically, metabolic syndrome (MetS) is increasingly prevalent and is a risk factor for the development of chronic diseases including type-2 diabetes, cardiovascular disease, and cancer. MetS is a combination of conditions which includes dyslipidemia, obesity, hypertension, and insulin resistance. Due to the role of lipids in inflammatory signaling, we hypothesize that MetS-associated dyslipidemia may modulate NP-induced immune responses. To examine this hypothesis, mice were fed either a control diet or a high-fat western diet (HFWD) for 14-weeks. A subset of mice were treated with atorvastatin for the final 7-weeks to modulate lipids. Mice were exposed to silver NPs (AgNPs) via oropharyngeal aspiration and acute toxicity endpoints were evaluated 24-h post-exposure. Mice on the HFWD demonstrated MetS-associated alterations such as increased body weight and cholesterol compared to control-diet mice. Cytometry analysis of bronchoalveolar lavage fluid (BALF) demonstrated exacerbation of AgNP-induced neutrophilic influx in MetS mice compared to healthy. Additionally, enhanced proinflammatory mRNA expression and protein levels of monocyte chemoattractant protein-1, macrophage inflammatory protein-2, and interleukin-6 were observed in MetS mice compared to healthy following exposure. AgNP exposure reduced mRNA expression of enzymes involved in lipid metabolism, such as arachidonate 5-lipoxygenase and arachidonate 15-lipoxygenase in both mouse models. Exposure to AgNPs decreased inducible nitric oxide synthase gene expression in MetS mice. An exploratory lipidomic profiling approach was utilized to screen lipid mediators involved in pulmonary inflammation. This assessment indicates the potential for reduced levels of lipids mediators of inflammatory resolution (LMIR) in the MetS model compared to healthy mice following AgNP exposure. Statin treatment inhibited enhanced inflammatory responses as well as alterations in LMIR observed in the MetS model due to AgNP exposure. Taken together our data suggests that MetS exacerbates the acute toxicity induced by AgNPs exposure possibly via a disruption of LMIR leading to enhanced pulmonary inflammation.
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Affiliation(s)
- Saeed Alqahtani
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States.,National Center for Pharmaceuticals, Life Science and Environment Research Institute, King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia
| | - Lisa M Kobos
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States
| | - Li Xia
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States
| | - Christina Ferreira
- Purdue Metabolite Profiling Facility, Purdue University, West Lafayette, IN, United States
| | - Jackeline Franco
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, United States
| | - Xuqin Du
- Department of Occupational Medicine and Toxicology, Beijing ChaoYang Hospital, Capital Medical University, Beijing, China
| | - Jonathan H Shannahan
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, United States
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27
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Miller MR. Oxidative stress and the cardiovascular effects of air pollution. Free Radic Biol Med 2020; 151:69-87. [PMID: 31923583 PMCID: PMC7322534 DOI: 10.1016/j.freeradbiomed.2020.01.004] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/31/2019] [Accepted: 01/03/2020] [Indexed: 12/11/2022]
Abstract
Cardiovascular causes have been estimated to be responsible for more than two thirds of the considerable mortality attributed to air pollution. There is now a substantial body of research demonstrating that exposure to air pollution has many detrimental effects throughout the cardiovascular system. Multiple biological mechanisms are responsible, however, oxidative stress is a prominent observation at many levels of the cardiovascular impairment induced by pollutant exposure. This review provides an overview of the evidence that oxidative stress is a key pathway for the different cardiovascular actions of air pollution.
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Affiliation(s)
- Mark R Miller
- University/BHF Centre for Cardiovascular Science, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH4 3RL, United Kingdom.
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28
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Zhang J, Feng L, Hou C, Gu Q. Health benefits on cardiocerebrovascular disease of reducing exposure to ambient fine particulate matter in Tianjin, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:13261-13275. [PMID: 32020454 DOI: 10.1007/s11356-020-07910-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 01/27/2020] [Indexed: 06/10/2023]
Abstract
With the development of the industrialization level in China, high concentrations of fine particulate matter (≤ 2.5 μg/m3 in aerodynamic diameter (PM2.5)) could have a great impact on the health of the population. Our study is to quantify the health benefits on cardiocerebrovascular disease of reducing exposure to PM2.5 in Tianjin, China. We obtained the data on cardiovascular disease (CVD), ischemic heart disease (IHD), and cerebrovascular disease (CD) mortalities to quantify the association between CVD, CD, and IHD mortalities and PM2.5 and calculate health and economic benefits when the annual average concentration of PM2.5 was reduced to National Ambient Air Quality Standard (NAAQS) and World Health Organization (WHO) guidelines by using our concentration response (C-R) functions. There were 435.22 (95% CI 253.86 to 616.57) all-cause, 130.22 (95% CI 66.34 to194.09) IHD, and 204.07 (95% CI 111.66 to 296.47) CD deaths attributed to PM2.5 and the economic benefits obtained by preventing all-cause, IHD, and CD mortalities were equivalent to be 2.79%, 0.83%, and 1.31% of Baodi's GDP in Tianjin in 2017, respectively. PM2.5 concentration was positive with all-cause, IHD, and CD mortalities in rural, suburban, and urban area of Tianjin, China. Meanwhile, the number of avoidable deaths and economic cost of reducing PM2.5 concentrations to NAAQS and WHO guidelines was highest in the rural area.
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Affiliation(s)
- Jingwei Zhang
- Department of Environment and Health, Tianjin Centers for Disease Control and Prevention, No. 6 Huayue Rd., Tianjin, China
| | - Lihong Feng
- Department of Environment and Health, Tianjin Centers for Disease Control and Prevention, No. 6 Huayue Rd., Tianjin, China
| | - Changchun Hou
- Department of Environment and Health, Tianjin Centers for Disease Control and Prevention, No. 6 Huayue Rd., Tianjin, China
| | - Qing Gu
- Department of Environment and Health, Tianjin Centers for Disease Control and Prevention, No. 6 Huayue Rd., Tianjin, China.
- School of Public Health, Tianjin Medical University, No. 22 Qixiangtai Rd., Tianjin, China.
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29
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Orona NS, Astort F, Maglione GA, Ferraro SA, Martin M, Morales C, Mandalunis PM, Brites F, Tasat DR. Hazardous effects of urban air particulate matter acute exposure on lung and extrapulmonary organs in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 190:110120. [PMID: 31896475 DOI: 10.1016/j.ecoenv.2019.110120] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/16/2019] [Accepted: 12/21/2019] [Indexed: 05/09/2023]
Abstract
Air particulate matter (PM) can lead to extrapulmonary adverse reactions in organs such as liver and heart either by particle translocation from the lung to the systemic circulation or by the release of lung mediators. Young BALB/c mice were intranasal instilled with 1mg/BW of Urban Air Particles from Buenos Aires or Residual Oil Fly Ash. Histopathology, oxidative metabolism and inflammation on lungs and extrapulmonary organs and the systemic response were evaluated. Lung histophatological analysis supported the rise in the number of inflammatory cells in the bronchoalveolar lavage from PM-exposed animals. Also, both PM caused recruitment of inflammatory cells in the liver and heart parenchyma and IL-6 and transaminases augmentation in serum. We have shown that despite morphochemical differences, both urban air PM altered the lung and extrapulmonary organs. Therefore, exposure to urban air PM may distress body metabolism which, in turn could lead to the development and progression of multifactorial diseases.
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Affiliation(s)
- Nadia S Orona
- Universidad Nacional de San Martín, Escuela de Ciencia y Tecnología, Centro de Estudios en Salud y Medio Ambiente, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.
| | - Francisco Astort
- Universidad Nacional de San Martín, Escuela de Ciencia y Tecnología, Centro de Estudios en Salud y Medio Ambiente, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Guillermo A Maglione
- Universidad Nacional de San Martín, Escuela de Ciencia y Tecnología, Centro de Estudios en Salud y Medio Ambiente, Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Histología y Embriología, Buenos Aires, Argentina
| | - Sebastian A Ferraro
- Universidad Nacional de San Martín, Escuela de Ciencia y Tecnología, Centro de Estudios en Salud y Medio Ambiente, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Maximiliano Martin
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Depto. Bioquímica Clínica, Instituto de Fisiopatología y Bioquímica Clínica, Laboratorio de Lípidos y Aterosclerosis, Buenos Aires, Argentina
| | - Celina Morales
- Universidad de Buenos Aires, Facultad de Medicina, Instituto de Fisiopatología Cardiovascular, Buenos Aires, Argentina
| | - Patricia M Mandalunis
- Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Histología y Embriología, Buenos Aires, Argentina
| | - Fernando Brites
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Depto. Bioquímica Clínica, Instituto de Fisiopatología y Bioquímica Clínica, Laboratorio de Lípidos y Aterosclerosis, Buenos Aires, Argentina
| | - Deborah R Tasat
- Universidad Nacional de San Martín, Escuela de Ciencia y Tecnología, Centro de Estudios en Salud y Medio Ambiente, Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Odontología, Cátedra de Histología y Embriología, Buenos Aires, Argentina
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World Trade Center-Cardiorespiratory and Vascular Dysfunction: Assessing the Phenotype and Metabolome of a Murine Particulate Matter Exposure Model. Sci Rep 2020; 10:3130. [PMID: 32081898 PMCID: PMC7035300 DOI: 10.1038/s41598-020-58717-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 01/14/2020] [Indexed: 12/13/2022] Open
Abstract
Vascular changes occur early in the development of obstructive airways disease. However, the vascular remodeling and dysfunction due to World Trade Center-Particulate Matter (WTC-PM) exposure are not well described and are therefore the focus of this investigation. C57Bl/6 female mice oropharyngeally aspirated 200 µg of WTC-PM53 or phosphate-buffered saline (PBS) (controls). 24-hours (24-hrs) and 1-Month (1-M) after exposure, echocardiography, micro-positron emission tomography(µ-PET), collagen quantification, lung metabolomics, assessment of antioxidant potential and soluble-receptor for advanced glycation end products (sRAGE) in bronchoalveolar lavage(BAL) and plasma were performed. 24-hrs post-exposure, there was a significant reduction in (1) Pulmonary artery(PA) flow-velocity and pulmonary ejection time(PET) (2) Pulmonary acceleration time(PAT) and PAT/PET, while (3) Aortic ejection time(AET) and velocity time integral(VTI) were increased, and (4) Aortic acceleration time (AAT)/AET, cardiac output and stroke volume were decreased compared to controls. 1-M post-exposure, there was also significant reduction of right ventricular diameter as right ventricle free wall thickness was increased and an increase in tricuspid E, A peaks and an elevated E/A. The pulmonary and cardiac standard uptake value and volume 1-M post-exposure was significantly elevated after PM-exposure. Similarly, α-smooth muscle actin(α-SMA) expression, aortic collagen deposition was elevated 1-M after PM exposure. In assessment of the metabolome, prominent subpathways included advanced glycation end products (AGEs), phosphatidylcholines, sphingolipids, saturated/unsaturated fatty acids, eicosanoids, and phospholipids. BAL superoxide dismutase(SOD), plasma total-antioxidant capacity activity, and sRAGE (BAL and plasma) were elevated after 24-hrs. PM exposure and associated vascular disease are a global health burden. Our study shows persistent WTC-Cardiorespiratory and Vascular Dysfunction (WTC-CaRVD), inflammatory changes and attenuation of antioxidant potential after PM exposure. Early detection of vascular disease is crucial to preventing cardiovascular deaths and future work will focus on further identification of bioactive therapeutic targets.
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van Waveren A, Duncan MJ, Coulson F, Fenning A. Moderate-intensity physical activity reduces systemic inflammation and maintains cardiorespiratory function following chronic particulate matter 2.5 exposure in rats. Toxicol Rep 2020; 7:93-100. [PMID: 31908971 PMCID: PMC6940717 DOI: 10.1016/j.toxrep.2019.12.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 12/10/2019] [Accepted: 12/14/2019] [Indexed: 11/24/2022] Open
Abstract
Aims The purpose of the current study is to 1) examine the beneficial effects of moderate levels of physical activity (PA) on functional and biochemical markers of the cardiorespiratory system, 2) establish the detrimental effects of a single, daily particulate matter (PM) exposure event on cardiorespiratory function and 3) determine if exercising during daily PM exposure increases the deleterious effects caused by PM exposure due to increased inhalation of particulates on cardiorespiratory function. Methods Four groups of 16 rats were used: control (CON), PA, PM2.5 exposed and PA combined with PM2.5 exposure (PA + PM). Animals were purchased at 4 weeks old. However, both PA and PM exposure was initiated when the animals reached 8 weeks of age, for 8 weeks. Results PA alone did not alter body weight or blood pressure (BP) compared to control animals. However, there was a significant decrease in epididymal fat pad mass in the PA group. The PM exposed rats were hypertensive, showed increased systemic inflammation and oxidative stress, and had decreased spleen mass without pathological changes in the cardiac action potential or impaired vascular function. PA was able to decrease systemic inflammation in PM exposed animals, including a reduction in IL-6 serum levels, however, this did not translate to an improvement in BP or vascular reactivity. Smooth muscle relaxation in the trachea from the combination PA + PM group was not significantly different to CON and PA groups but was significantly higher than the PM group. Conclusions The current study showed that while there is an increased cardiovascular disease (CVD) risk associated with PM exposure, engaging in PA during exposure events imposes no increased risk with exercise providing a protective mechanism against some of the biochemical signaling changes caused by inhaled PM.
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Affiliation(s)
- Alannah van Waveren
- School of Medical and Applied Science, CQ University Rockhampton, Bruce Highway, Queensland, 4702, Australia.,School of Health, Medical and Applied Sciences, Central Queensland University, Australia
| | - Mitch J Duncan
- School of Medical and Applied Science, CQ University Rockhampton, Bruce Highway, Queensland, 4702, Australia.,School of Medicine & Public Health, Priority Research Centre in Physical Activity and Nutrition, The University of Newcastle, Newcastle, Australia
| | - Fiona Coulson
- School of Medical and Applied Science, CQ University Rockhampton, Bruce Highway, Queensland, 4702, Australia.,School of Health, Medical and Applied Sciences, Central Queensland University, Australia
| | - Andrew Fenning
- School of Medical and Applied Science, CQ University Rockhampton, Bruce Highway, Queensland, 4702, Australia.,School of Health, Medical and Applied Sciences, Central Queensland University, Australia
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Krajnak K, Waugh S, Stefaniak A, Schwegler-Berry D, Roach K, Barger M, Roberts J. Exposure to graphene nanoparticles induces changes in measures of vascular/renal function in a load and form-dependent manner in mice. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:711-726. [PMID: 31370764 DOI: 10.1080/15287394.2019.1645772] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Graphenes isolated from crystalline graphite are used in several industries. Employees working in the production of graphenes may be at risk of developing respiratory problems attributed to inhalation or contact with particulate matter (PM). However, graphene nanoparticles might also enter the circulation and accumulate in other organs. The aim of this study was to examine how different forms of graphene affect peripheral vascular functions, generation of reactive oxygen species (ROS) and changes in gene expression that may be indicative of cardiovascular and/or renal dysfunction. In the first investigation, different doses of graphene nanoplatelets were administered to mice via oropharyngeal aspiration. These effects were compared to those of dispersion medium (DM) and carbon black (CB). Gene expression alterations were observed in the heart for CB and graphene; however, only CB produced changes in peripheral vascular function. In the second study, oxidized forms of graphene were administered. Both oxidized forms increased the sensitivity of peripheral blood vessels to adrenoreceptor-mediated vasoconstriction and induced changes in ROS levels in the heart. Based upon the results of these investigations, exposure to graphene nanoparticles produced physiological and alterations in ROS and gene expression that may lead to cardiovascular dysfunction. Evidence indicates that the effects of these particles may be dependent upon dose and graphene form to which an individual may be exposed to.
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Affiliation(s)
- K Krajnak
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - S Waugh
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Ab Stefaniak
- b Respiratory Health Division, West Virginia University , Morgantown , WV , USA
| | - D Schwegler-Berry
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | | | - M Barger
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - Jr Roberts
- a Health Effects Laboratory Division, National Institute for Occupational Safety and Health , Morgantown , WV , USA
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Chézeau L, Kohlstaedt LA, Le Faou A, Cosnier F, Rihn B, Gaté L. Proteomic analysis of bronchoalveolar lavage fluid in rat exposed to TiO 2 nanostructured aerosol by inhalation. J Proteomics 2019; 207:103451. [PMID: 31323425 DOI: 10.1016/j.jprot.2019.103451] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 06/23/2019] [Accepted: 07/15/2019] [Indexed: 12/30/2022]
Abstract
The pulmonary toxicological properties of inhaled titanium dioxide were studied using bronchoalveolar lavage fluid (BALF) cytology and proteomics analyses. Fischer 344 rats were exposed to 10 mg/m3 of TiO2 nanostructured aerosol by nose-only inhalation for 6 h/day, 5 days/week for 4 weeks. Lung samples were collected up to 180 post-exposure days. As previously described, cytological analyses of BALF showed a strong inflammatory response up to 3 post-exposure days, which persisted however, at a lower intensity up to 180 days. In addition, using Multidimensional Protein Identification Technology (MudPIT), we identified a total of 107, 50 and 45 proteins (UniprotKB identifiers) differentially expressed in exposed rats immediately, 3 and 180 days after the end of exposure respectively. Increased levels of inflammatory proteins, members of proteasome, various histones, proteins involved in cytoskeleton organization, were noticed up to 3 days (short-term response). Some of these proteins were linked with Neutrophil Extracellular Trap formation (NETosis). Long-term response was also characterized by a persistent altered expression of proteins up to 180 days. Altogether, these results suggest that exposure to low toxicity low solubility nanomaterials such as TiO2 may induce long-term changes in the pulmonary protein expression pattern of which the physio-pathological consequences are unknown. SIGNIFICANCE: This paper describes in rats, at the pulmonary level, the effects of inhaled nanostructured aerosol of TiO2 on the secreted proteins found in the broncho-alveolar space by comparing the proteomic profile in broncho-alveolar lavage fluid supernatants of control and exposed animals. This work brings new insights about the early events occurring following the end of exposure and suggests the formation of Neutrophil Extracellular Traps (NETosis) that could be interpret as a potential early mechanism of defense against TiO2 nanoparticles. This work also describes the long term effects (180 post-exposure days) of such an exposure and the change in secreted protein expression in the absence of significant histopathological modifications.
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Affiliation(s)
- Laëtitia Chézeau
- Institut National de Recherche et de Sécurité, Rue du Morvan, CS 60027, 54519 Vandœuvre, Cedex, France; EA 3452 CITHEFOR, Université de Lorraine, BP 80403, 54001 Nancy Cedex, France
| | - Lori A Kohlstaedt
- California Institute for Quantitative Biosciences, University of California, Berkeley, CA 94720, United States of America
| | - Alain Le Faou
- EA 3452 CITHEFOR, Université de Lorraine, BP 80403, 54001 Nancy Cedex, France
| | - Frédéric Cosnier
- Institut National de Recherche et de Sécurité, Rue du Morvan, CS 60027, 54519 Vandœuvre, Cedex, France
| | - Bertrand Rihn
- EA 3452 CITHEFOR, Université de Lorraine, BP 80403, 54001 Nancy Cedex, France; Institut Jean-Lamour, UMR 7198 CNRS, Université de Lorraine, 54011 Nancy Cedex, France
| | - Laurent Gaté
- Institut National de Recherche et de Sécurité, Rue du Morvan, CS 60027, 54519 Vandœuvre, Cedex, France.
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Yang BY, Guo Y, Morawska L, Bloom MS, Markevych I, Heinrich J, Dharmage SC, Knibbs LD, Lin S, Yim SHL, Chen G, Li S, Zeng XW, Liu KK, Hu LW, Dong GH. Ambient PM 1 air pollution and cardiovascular disease prevalence: Insights from the 33 Communities Chinese Health Study. ENVIRONMENT INTERNATIONAL 2019; 123:310-317. [PMID: 30557810 DOI: 10.1016/j.envint.2018.12.012] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 11/16/2018] [Accepted: 12/05/2018] [Indexed: 05/13/2023]
Abstract
BACKGROUNDS Evidence on the association between long-term exposure to particulate matter with aerodynamic diameter ≤2.5 μm (PM2.5) and cardiovascular disease (CVD) is scarce in developing countries. Moreover, few studies assessed the role of the PM1 (≤1.0 μm) size fraction and CVD. We investigated the associations between PM1 and PM2.5 and CVD prevalence in Chinese adults. METHODS In 2009, we randomly recruited 24,845 adults at the age of 18-74 years from 33 communities in Northeastern China. CVD status was determined by self-report of doctor-diagnosed CVD. Three-year (2006-08) average concentrations of PM1 and PM2.5 were assigned using a satellite-based exposure. We used spatial Generalized Linear Mixed Models to evaluate the associations between air pollutants and CVD prevalence, adjusting for multiple covariates. Stratified and interaction analyses and sensitivity analyses were also performed. RESULTS A 10 μg/m3 increase in long-term exposure to ambient PM1 levels was associated a 12% higher odds for having CVD (OR = 1.12; 95% CI = 1.05-1.20). Compared to PM1, association between PM2.5 and CVD was lower (OR = 1.06; 95% CI = 1.01-1.11). No significant association was observed for PM1-2.5 (1-2.5 μm) size fraction (OR = 0.98; 95% CI = 0.85-1.13). Stratified analyses showed greater effect estimates in men and the elder. CONCLUSIONS Long-term PM1 exposure was positively related to CVD, especially in men and the elder. In addition, PM1 may play a greater role than PM2.5 in associations with CVD. Further longitudinal studies are warranted to confirm our findings.
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Affiliation(s)
- Bo-Yi Yang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yuming Guo
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
| | - Lidia Morawska
- Queensland University of Technology, International Laboratory for Air Quality & Health, Brisbane, QLD, Australia; Queensland University of Technology, Science and Engineering Faculty, Brisbane, QLD, Australia
| | - Michael S Bloom
- Department of Environmental Health Sciences and Epidemiology and Biostatics, University at Albany, State University of New York, Rensselaer, NY, USA
| | - Iana Markevych
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Germany; Institute of Epidemiology, Helmholtz ZentrumMünchen-German Research Center for Environmental Health, Neuherberg, Germany; Division of Metabolic and Nutritional Medicine, Dr. von Hauner Children's Hospital, Munich, Ludwig Maximilian University of Munich, Munich, Germany
| | - Joachim Heinrich
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, LMU Munich, Germany; Comprehensive Pneumology Center Munich, German Center for Lung Research, Ziemssenstrasse 1, 80336 Muenchen, Germany
| | - Shyamali C Dharmage
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, School of Population & Global Health, The University of Melbourne, Melbourne, Australia; Murdoch Childrens Research Institute, Melbourne, Australia
| | - Luke D Knibbs
- School of Public Health, The University of Queensland, Herston, Queensland 4006, Australia
| | - Shao Lin
- Department of Environmental Health Sciences and Epidemiology and Biostatics, University at Albany, State University of New York, Rensselaer, NY, USA
| | - Steve Hung-Lam Yim
- Department of Geography and Resource Management, The Chinese University of Hong Kong; Stanley Ho Big Data Decision Analytics Research Centre, The Chinese University of Hong Kong; Institute of Environment, Energy and Sustainability, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Gongbo Chen
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
| | - Shanshan Li
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
| | - Xiao-Wen Zeng
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Kang-Kang Liu
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Li-Wen Hu
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Guang-Hui Dong
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
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Kan H, Pan D, Castranova V. Engineered nanoparticle exposure and cardiovascular effects: the role of a neuronal-regulated pathway. Inhal Toxicol 2019; 30:335-342. [PMID: 30604639 DOI: 10.1080/08958378.2018.1535634] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Human and animal studies have confirmed that inhalation of particles from ambient air or occupational settings not only causes pathophysiological changes in the respiratory system, but causes cardiovascular effects as well. At an equal mass lung burden, nanoparticles are more potent in causing systemic microvascular dysfunction than fine particles of similar composition. Thus, accumulated evidence from animal studies has led to heightened concerns about the potential short- and long-term deleterious effects of inhalation of engineered nanoparticles on the cardiovascular system. This review highlights the new observations from animal studies, which document the adverse effects of pulmonary exposure to engineered nanoparticles on the cardiovascular system and elucidate the potential mechanisms involved in regulation of cardiovascular function, in particular, how the neuronal system plays a role and reacts to pulmonary nanoparticle exposure based on both in vivo and in vitro studies. In addition, this review also discusses the possible influence of altered autonomic nervous activity on preexisting cardiovascular conditions. Whether engineered nanoparticle exposure serves as a risk factor in the development of cardiovascular diseases warrants further investigation.
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Affiliation(s)
- H Kan
- a Health Effects Laboratory Division , National Institute for Occupational Safety and Health , Morgantown , WV , USA.,b Department of Pharmaceutical Sciences , West Virginia University , Morgantown , WV , USA
| | - D Pan
- a Health Effects Laboratory Division , National Institute for Occupational Safety and Health , Morgantown , WV , USA
| | - V Castranova
- b Department of Pharmaceutical Sciences , West Virginia University , Morgantown , WV , USA
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Quintana-Belmares R, Hernández-Pérez G, Montiel-Dávalos A, Gustafsson Å, Miranda J, Rosas-Pérez I, López-Marure R, Alfaro-Moreno E. Urban particulate matter induces the expression of receptors for early and late adhesion molecules on human monocytes. ENVIRONMENTAL RESEARCH 2018; 167:283-291. [PMID: 30077136 DOI: 10.1016/j.envres.2018.07.033] [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: 05/03/2018] [Revised: 07/25/2018] [Accepted: 07/25/2018] [Indexed: 06/08/2023]
Abstract
Exposure to urban particulate matter (PM) is correlated with increases in the emergence of health services due to adverse events and deaths and is mainly related to cardiorespiratory complications. The translocation of particles from the lung into circulation has been proposed as a factor that may trigger systemic effects. Monocytes may be exposed to PM, and if the monocytes are activated, then they are likely to adhere to endothelial cells in a distant organ due to the expression of receptors for adhesion molecules. In the present study, we evaluated the expression of receptors for adhesion molecules (sLex, PSGL-1, LFA-1, VLA-4 and αVβ3) in monocytes (U937 cells) exposed for 3 or 18 h to PM10 (0.001, 0.003, 0.010, 0.030, 0.300, 3 or 30 µg/mL). Exposed cells were co-cultured with human endothelial cells that were naive or previously exposed to the same particles. When U937 cells were exposed to PM10, similar levels of expression for early and late receptors for adhesion molecules were observed from 30 ng/mL as those induced by TNF-α. Cells exposed to particles at concentrations above 30 ng/mL were more adhesive to naive or exposed human endothelial cells. Taken together, our results suggest that it is plausible that activated monocytes may play a role in systemic effects induced by PM10 due to the size distribution of the particles and the concentrations required to trigger the expression of receptors for adhesion molecules in monocytes.
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Affiliation(s)
- Raúl Quintana-Belmares
- Environmental Health Laboratory, Subdirección de Investigación Básica, Instituto Nacional de Cancerología, Mexico
| | - Guillermina Hernández-Pérez
- Environmental Health Laboratory, Subdirección de Investigación Básica, Instituto Nacional de Cancerología, Mexico
| | - Angélica Montiel-Dávalos
- Environmental Health Laboratory, Subdirección de Investigación Básica, Instituto Nacional de Cancerología, Mexico
| | - Åsa Gustafsson
- Swetox, Karolinska Institutet, Unit of Toxicology Sciences, Forskargatan 20, SE-151 36 Södertälje, Sweden
| | - Javier Miranda
- Experimental Physics Department, Institute of Physics, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Mexico
| | - Irma Rosas-Pérez
- Aerobiology Laboratory, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, Mexico
| | - Rebeca López-Marure
- Departamento de Fisiología, Instituto Nacional de Cardiología "Ignacio Chávez", Mexico
| | - Ernesto Alfaro-Moreno
- Swetox, Karolinska Institutet, Unit of Toxicology Sciences, Forskargatan 20, SE-151 36 Södertälje, Sweden.
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Short- and long-term gene expression profiles induced by inhaled TiO 2 nanostructured aerosol in rat lung. Toxicol Appl Pharmacol 2018; 356:54-64. [PMID: 30012374 DOI: 10.1016/j.taap.2018.07.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 07/10/2018] [Accepted: 07/12/2018] [Indexed: 11/20/2022]
Abstract
The number of workers potentially exposed to nanoparticles (NPs) during industrial processes is increasing, although the toxicological properties of these compounds still need to be fully characterized. As NPs may be aerosolized during industrial processes, inhalation represents their main route of occupational exposure. Here, the short- and long-term pulmonary toxicological properties of titanium dioxide were studied, using conventional and molecular toxicological approaches. Fischer 344 rats were exposed to 10 mg/m3 of a TiO2 nanostructured aerosol (NSA) by nose-only inhalation for 6 h/day, 5 days/week for 4 weeks. Lung samples were collected up to 180 post-exposure days. Biochemical and cytological analyses of bronchoalveolar lavage (BAL) showed a strong inflammatory response up to 3 post-exposure days, which decreased overtime. In addition, gene expression profiling revealed overexpression of genes involved in inflammation that was maintained 6 months after the end of exposure (long-term response). Genes involved in oxidative stress and vascular changes were also up-regulated. Long-term response was characterized by persistent altered expression of a number of genes up to 180 post-exposure days, despite the absence of significant histopathological changes. The physiopathological consequences of these changes are not fully understood, but they should raise concerns about the long-term pulmonary effects of inhaled biopersistent NPs such as TiO2.
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Schubauer-Berigan MK, Dahm MM, Erdely A, Beard JD, Eileen Birch M, Evans DE, Fernback JE, Mercer RR, Bertke SJ, Eye T, de Perio MA. Association of pulmonary, cardiovascular, and hematologic metrics with carbon nanotube and nanofiber exposure among U.S. workers: a cross-sectional study. Part Fibre Toxicol 2018; 15:22. [PMID: 29769147 PMCID: PMC5956815 DOI: 10.1186/s12989-018-0258-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 05/07/2018] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Commercial use of carbon nanotubes and nanofibers (CNT/F) in composites and electronics is increasing; however, little is known about health effects among workers. We conducted a cross-sectional study among 108 workers at 12 U.S. CNT/F facilities. We evaluated chest symptoms or respiratory allergies since starting work with CNT/F, lung function, resting blood pressure (BP), resting heart rate (RHR), and complete blood count (CBC) components. METHODS We conducted multi-day, full-shift sampling to measure background-corrected elemental carbon (EC) and CNT/F structure count concentrations, and collected induced sputum to measure CNT/F in the respiratory tract. We measured (nonspecific) fine and ultrafine particulate matter mass and count concentrations. Concurrently, we conducted physical examinations, BP measurement, and spirometry, and collected whole blood. We evaluated associations between exposures and health measures, adjusting for confounders related to lifestyle and other occupational exposures. RESULTS CNT/F air concentrations were generally low, while 18% of participants had evidence of CNT/F in sputum. Respiratory allergy development was positively associated with inhalable EC (p=0.040) and number of years worked with CNT/F (p=0.008). No exposures were associated with spirometry-based metrics or pulmonary symptoms, nor were CNT/F-specific metrics related to BP or most CBC components. Systolic BP was positively associated with fine particulate matter (p-values: 0.015-0.054). RHR was positively associated with EC, at both the respirable (p=0.0074) and inhalable (p=0.0026) size fractions. Hematocrit was positively associated with the log of CNT/F structure counts (p=0.043). CONCLUSIONS Most health measures were not associated with CNT/F. The positive associations between CNT/F exposure and respiratory allergies, RHR, and hematocrit counts may not be causal and require examination in other studies.
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Affiliation(s)
- Mary K. Schubauer-Berigan
- National Institute for Occupational Safety and Health (NIOSH), Division of Surveillance, Hazard Evaluations, and Field Studies, 1090 Tusculum Ave MS-R15, Cincinnati, OH 45226 USA
| | - Matthew M. Dahm
- National Institute for Occupational Safety and Health (NIOSH), Division of Surveillance, Hazard Evaluations, and Field Studies, 1090 Tusculum Ave MS-R15, Cincinnati, OH 45226 USA
| | - Aaron Erdely
- NIOSH, Health Effects Laboratory Division, Morgantown, WV USA
| | - John D. Beard
- National Institute for Occupational Safety and Health (NIOSH), Division of Surveillance, Hazard Evaluations, and Field Studies, 1090 Tusculum Ave MS-R15, Cincinnati, OH 45226 USA
- Centers for Disease Control and Prevention, Epidemic Intelligence Service, Atlanta, GA USA
- Present address: Department of Public Health, College of Life Sciences, Brigham Young University, Provo, UT USA
| | - M. Eileen Birch
- NIOSH, Division of Applied Research and Technology, Cincinnati, OH USA
| | - Douglas E. Evans
- NIOSH, Division of Applied Research and Technology, Cincinnati, OH USA
| | | | | | - Stephen J. Bertke
- National Institute for Occupational Safety and Health (NIOSH), Division of Surveillance, Hazard Evaluations, and Field Studies, 1090 Tusculum Ave MS-R15, Cincinnati, OH 45226 USA
| | - Tracy Eye
- NIOSH, Health Effects Laboratory Division, Morgantown, WV USA
| | - Marie A. de Perio
- National Institute for Occupational Safety and Health (NIOSH), Division of Surveillance, Hazard Evaluations, and Field Studies, 1090 Tusculum Ave MS-R15, Cincinnati, OH 45226 USA
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39
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Rao X, Zhong J, Brook RD, Rajagopalan S. Effect of Particulate Matter Air Pollution on Cardiovascular Oxidative Stress Pathways. Antioxid Redox Signal 2018; 28:797-818. [PMID: 29084451 PMCID: PMC5831906 DOI: 10.1089/ars.2017.7394] [Citation(s) in RCA: 200] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
SIGNIFICANCE Particulate matter (PM) air pollution is a leading cause of global cardiovascular morbidity and mortality. Understanding the biological action of PM is of particular importance in improvement of public health. Recent Advances: Both fine (PM <2.5 μM) and ultrafine particles (<0.1 μM) are widely believed to mediate their effects through redox regulated pathways. A rather simplistic graded ramp model of redox stress has been replaced by a more sophisticated understanding of the role of oxidative stress in signaling, and the realization that many of the observed effects may involve disruption and/or enhancement of normal endogenous redox signaling and induction of a potent immune-mediated response, through entrainment of multiple reactive oxygen species (ROS). CRITICAL ISSUES The molecular events by which pulmonary oxidative stress in response to inhalational exposure to air pollution triggers inflammation, major ROS (e.g., superoxide, hydroxyl radical, nitric oxide, and peroxynitrite) generated in air pollution exposure, types of oxidative tissue damage in target organs, contributions of nonimmune and immune cells in inflammation, and the role of protective proteins (e.g., surfactant, proteins, and antioxidants) are highly complex and may differ depending on models and concomitant disease states. FUTURE DIRECTIONS While the role of oxidative stress in the lung has been well demonstrated, the role of oxidative stress in mediating systemic effects especially in inflammation and injury processes needs further work. The role of antioxidant defenses with chronic exposure will also need further exploration. Antioxid. Redox Signal. 28, 797-818.
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Affiliation(s)
- Xiaoquan Rao
- 1 Department of Medicine, Case Cardiovascular Research Institute, Case Western Reserve University , Cleveland, Ohio
| | - Jixin Zhong
- 1 Department of Medicine, Case Cardiovascular Research Institute, Case Western Reserve University , Cleveland, Ohio
| | - Robert D Brook
- 2 Department of Medicine, Division of Cardiovascular Medicine, University of Michigan , Ann Arbor, Michigan
| | - Sanjay Rajagopalan
- 1 Department of Medicine, Case Cardiovascular Research Institute, Case Western Reserve University , Cleveland, Ohio
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40
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Wilson SJ, Miller MR, Newby DE. Effects of Diesel Exhaust on Cardiovascular Function and Oxidative Stress. Antioxid Redox Signal 2018; 28:819-836. [PMID: 28540736 DOI: 10.1089/ars.2017.7174] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
SIGNIFICANCE Air pollution is a major global health concern with particulate matter (PM) being especially associated with increases in cardiovascular morbidity and mortality. Diesel exhaust emissions are a particularly rich source of the smallest sizes of PM ("fine" and "ultrafine") in urban environments, and it is these particles that are believed to be the most detrimental to cardiovascular health. Recent Advances: Controlled exposure studies to diesel exhaust in animals and man demonstrate alterations in blood pressure, heart rate, vascular tone, endothelial function, myocardial perfusion, thrombosis, atherogenesis, and plaque stability. Oxidative stress has emerged as a highly plausible pathobiological mechanism by which inhalation of diesel exhaust PM leads to multiple facets of cardiovascular dysfunction. CRITICAL ISSUES Diesel exhaust inhalation promotes oxidative stress in several biological compartments that can be directly associated with adverse cardiovascular effects. FUTURE DIRECTIONS Further studies with more sensitive and specific in vivo human markers of oxidative stress are required to determine if targeting oxidative stress pathways involved in the actions of diesel exhaust PM could be of therapeutic value. Antioxid. Redox Signal. 28, 819-836.
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Affiliation(s)
- Simon J Wilson
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh , Edinburgh, United Kingdom
| | - Mark R Miller
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh , Edinburgh, United Kingdom
| | - David E Newby
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh , Edinburgh, United Kingdom
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41
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Stapleton PA, McBride CR, Yi J, Abukabda AB, Nurkiewicz TR. Estrous cycle-dependent modulation of in vivo microvascular dysfunction after nanomaterial inhalation. Reprod Toxicol 2018; 78:20-28. [PMID: 29545171 PMCID: PMC6034709 DOI: 10.1016/j.reprotox.2018.03.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 02/08/2018] [Accepted: 03/05/2018] [Indexed: 12/11/2022]
Abstract
Preconceptive health encompasses male and female reproductive capability. In females, this takes into account each of the stages of the estrous cycle. Microvascular reactivity varies throughout the estrous cycle in response to hormonal changes and in preparation for pregnancy. Microvascular alterations in response to engineered nanomaterial (ENM) exposure have been described within 24-h of inhalation; however, the impact upon the uterine vasculature at differing estrous stages and at late-stage pregnancy is unclear. Female Sprague Dawley (SD) rats (virgin and late stage pregnancy [GD 19]) were exposed to nano-TiO aerosols (173.2 ± 6.4 nm, 10.2 ± 0.46 mg/m3, 5 h) 24-h prior to experimentation leading to a single calculated deposition of 42.2 ± 1.9 µg nano- TiO2 (exposed) or 0µg (control). Animals were anesthetized, estrous status verified, and prepared for in situ assessment of leukocyte trafficking and vascular function by means of intravital microscopy, Uterine basal arteriolar reactivity was stimulated using iontophoretically applied chemicals: acetylcholine (ACh, 0.025 M; 20, 40, 100, 200 nA), sodium nitroprusside (SNP, 0.05 M; 20, 40, 100 nA), phenylephrine (PE, 0.05 M; 20, 40, 100 nA). Finally, adenosine (ADO, 10−4 M) was superfused over the tissue to identify maximum diameter. In situ vessel reactivity after exposure was significantly blunted based on estrous stage, but not at late-stage pregnancy. Local uterine venular leukocyte trafficking and systemic inflammatory markers were also significantly affected during preparatory (proestrus), fertile (estrus), and infertile (diestrus) periods after ENM inhalation. Overall, these deficits in reactivity and increased inflammatory activity may impair female fertility after ENM exposure.
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Affiliation(s)
- P A Stapleton
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA; Environmental and Occupational Health Sciences Institute, Piscataway, NJ, USA.
| | - C R McBride
- Department of Physiology, Pharmacology, and Neuroscience, West Virginia University, Morgantown, WV, USA; Toxicology Working Group, West Virginia University, Morgantown, WV, USA
| | - J Yi
- Department of Physiology, Pharmacology, and Neuroscience, West Virginia University, Morgantown, WV, USA
| | - A B Abukabda
- Department of Physiology, Pharmacology, and Neuroscience, West Virginia University, Morgantown, WV, USA; Toxicology Working Group, West Virginia University, Morgantown, WV, USA
| | - T R Nurkiewicz
- Department of Physiology, Pharmacology, and Neuroscience, West Virginia University, Morgantown, WV, USA; Toxicology Working Group, West Virginia University, Morgantown, WV, USA
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42
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Xu X, Qimuge A, Wang H, Xing C, Gu Y, Liu S, Xu H, Hu M, Song L. IRE1α/XBP1s branch of UPR links HIF1α activation to mediate ANGII-dependent endothelial dysfunction under particulate matter (PM) 2.5 exposure. Sci Rep 2017; 7:13507. [PMID: 29044123 PMCID: PMC5647447 DOI: 10.1038/s41598-017-13156-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 09/19/2017] [Indexed: 12/21/2022] Open
Abstract
Short- and long-term exposure to particulate matter (PM) 2.5 instigates adverse health effect upon the cardiovascular (CV) system. Disclosing the molecular events by which PM2.5 evokes CV injuries is essential in developing effective risk-reduction strategy. Here we found that rats after intratracheally instillation with PM2.5 displayed increased circulating level of ANGII, the major bioactive peptide in renin-angiotensin-system (RAS), which resulted from the elevation of ANGII production in the vascular endothelium. Further investigations demonstrated that activation of IRE1α/XBP1s branch of unfolded protein response (UPR) was essential for augmented vascular ANGII signaling in response to PM2.5 exposure, whose effects strictly depends on the assembly of XBP1s/HIF1α transcriptional complex. Moreover, ablation of IRE1/XBP1/HIFα-dependent ACE/ANGII/AT1R axis activation inhibited oxidative stress and proinflammatory response in the vascular endothelial cells induced by PM2.5. Therefore, we conclude that PM2.5 exposure instigates endoplasmic reticulum instability, leading to the induction of IRE1α/XBP1s branch of UPR and links HIF1α transactivation to mediate ANGII-dependent endothelial dysfunction. Identifying novel therapeutic targets to alleviate ER stress and restore local RAS homeostasis in the endothelium may be helpful for the management of PM2.5-induced CV burden.
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Affiliation(s)
- Xiuduan Xu
- Department of Stress Medicine, Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing, 100850, P. R. China.,Anhui Medical University, 81 Meishan Road, Hefei, 230032, P. R. China.,Department of Gastroenterology and Hepatology, Chinese PLA, 21 General Hospital, Beijing, China
| | - Aodeng Qimuge
- Department of Stress Medicine, Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing, 100850, P. R. China.,Department of New Drug Screening Center, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, P. R. China
| | - Hongli Wang
- Department of Stress Medicine, Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing, 100850, P. R. China.,Laboratory of Cellular and Molecular Immunology, School of Medicine, Henan University, 357 Ximen Road, Kaifeng, 475004, P. R. China
| | - Chen Xing
- Department of Stress Medicine, Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing, 100850, P. R. China
| | - Ye Gu
- Department of Stress Medicine, Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing, 100850, P. R. China.,Department of Pathology, School of Basic Medical Sciences, Lanzhou University, Tianshui South Road, Lanzhou, 730000, P. R. China
| | - Shasha Liu
- Department of Stress Medicine, Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing, 100850, P. R. China.,Department of Pathology, School of Basic Medical Sciences, Lanzhou University, Tianshui South Road, Lanzhou, 730000, P. R. China
| | - Huan Xu
- Department of Stress Medicine, Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing, 100850, P. R. China.,Anhui Medical University, 81 Meishan Road, Hefei, 230032, P. R. China
| | - Meiru Hu
- Department of Stress Medicine, Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing, 100850, P. R. China
| | - Lun Song
- Department of Stress Medicine, Beijing Institute of Basic Medical Sciences, 27 Taiping Road, Beijing, 100850, P. R. China. .,Anhui Medical University, 81 Meishan Road, Hefei, 230032, P. R. China. .,Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, P. R. China.
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43
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Inhalation exposure to three-dimensional printer emissions stimulates acute hypertension and microvascular dysfunction. Toxicol Appl Pharmacol 2017; 335:1-5. [PMID: 28942003 DOI: 10.1016/j.taap.2017.09.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 09/19/2017] [Indexed: 01/19/2023]
Abstract
Fused deposition modeling (FDM™), or three-dimensional (3D) printing has become routine in industrial, occupational and domestic environments. We have recently reported that 3D printing emissions (3DPE) are complex mixtures, with a large ultrafine particulate matter component. Additionally, we and others have reported that inhalation of xenobiotic particles in this size range is associated with an array of cardiovascular dysfunctions. Sprague-Dawley rats were exposed to 3DPE aerosols via nose-only exposure for ~3h. Twenty-four hours later, intravital microscopy was performed to assess microvascular function in the spinotrapezius muscle. Endothelium-dependent and -independent arteriolar dilation were stimulated by local microiontophoresis of acetylcholine (ACh) and sodium nitroprusside (SNP). At the time of experiments, animals exposed to 3DPE inhalation presented with a mean arterial pressure of 125±4mmHg, and this was significantly higher than that for the sham-control group (94±3mmHg). Consistent with this pressor response in the 3DPE group, was an elevation of ~12% in resting arteriolar tone. Endothelium-dependent arteriolar dilation was significantly impaired after 3DPE inhalation across all iontophoretic ejection currents (0-27±15%, compared to sham-control: 15-120±21%). Endothelium-independent dilation was not affected by 3DPE inhalation. These alterations in peripheral microvascular resistance and reactivity are consistent with elevations in arterial pressure that follow 3DPE inhalation. Future studies must identify the specific toxicants generated by FDM™ that drive this acute pressor response.
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44
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Gorr MW, Falvo MJ, Wold LE. Air Pollution and Other Environmental Modulators of Cardiac Function. Compr Physiol 2017; 7:1479-1495. [PMID: 28915333 PMCID: PMC7249238 DOI: 10.1002/cphy.c170017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cardiovascular disease (CVD) is the leading cause of death in developed regions and a worldwide health concern. Multiple external causes of CVD are well known, including obesity, diabetes, hyperlipidemia, age, and sedentary behavior. Air pollution has been linked with the development of CVD for decades, though the mechanistic characterization remains unknown. In this comprehensive review, we detail the background and epidemiology of the effects of air pollution and other environmental modulators on the heart, including both short- and long-term consequences. Then, we provide the experimental data and current hypotheses of how pollution is able to cause the CVD, and how exposure to pollutants is exacerbated in sensitive states. Published 2017. Compr Physiol 7:1479-1495, 2017.
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Affiliation(s)
- Matthew W. Gorr
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner College of Medicine, Columbus, Ohio, USA
- College of Nursing, The Ohio State University, Columbus, Ohio, USA
| | - Michael J. Falvo
- War Related Illness and Injury Study Center, Department of Veterans Affairs, New Jersey Health Care System, East Orange, New Jersey, USA
- New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, New Jersey, USA
| | - Loren E. Wold
- Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner College of Medicine, Columbus, Ohio, USA
- College of Nursing, The Ohio State University, Columbus, Ohio, USA
- Department of Physiology and Cell Biology, The Ohio State University, Columbus, Ohio, USA
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45
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Dai J, Chen W, Lin Y, Wang S, Guo X, Zhang QQ. Exposure to Concentrated Ambient Fine Particulate Matter Induces Vascular Endothelial Dysfunction via miR-21. Int J Biol Sci 2017; 13:868-877. [PMID: 28808419 PMCID: PMC5555104 DOI: 10.7150/ijbs.19868] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 05/03/2017] [Indexed: 12/22/2022] Open
Abstract
Vascular endothelial permeability transition does not cause significant lesions, but enhanced permeability may contribute to the development of vascular and other diseases, including atherosclerosis, hypertension, heart failure and cancer. Therefore, elucidating the effect of Particulate Matter 2.5 (PM2.5) on vascular endothelial permeability could help prevent disease that might be caused by PM2.5. Our previous study and the present one revealed that PM2.5 significantly increased the permeability of vascular endothelial cells and disrupted the barrier function of the vascular endothelium in Sprague Dawley (SD) rats. We found that the effect occurred mainly through induction of signal transducer and activator of transcription 3 (STAT3) phosphorylation, further transcriptional regulation of microRNA21 (miR-21) and promotion of miR-21 expression. These changes post-transcriptionally repress tissue inhibitor of metalloproteinases 3 (TIMP3) and promote matrix metalloproteinases 9 (MMP9) expression. This work provides evidence that PM2.5 exerts direct inhibitory action on vascular endothelial barrier function and might give rise to a number of vascular diseases.
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Affiliation(s)
- Jianwei Dai
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou 510182, China.,The State Key Lab of Respiratory Disease, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou 510120, China
| | - Wensheng Chen
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou 510182, China
| | - Yuyin Lin
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou 510182, China
| | - Shiwen Wang
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou 510182, China
| | - Xiaolan Guo
- GMU-GIBH Joint School of Life Sciences, Guangzhou Medical University, Guangzhou 510182, China
| | - Qian-Qian Zhang
- Vascular Biology Research Institute, School of Basic Course, Guangdong Pharmaceutical University, Guangzhou 510006, China
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46
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Viswanath B, Kim S. Influence of Nanotoxicity on Human Health and Environment: The Alternative Strategies. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 242:61-104. [PMID: 27718008 DOI: 10.1007/398_2016_12] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Currently, nanotechnology revolutionizing both scientific and industrial community due to their applications in the fields of medicine, environmental protection, energy, and space exploration. Despite of the evident benefits of nanoparticles, there are still open questions about the influence of these nanoparticles on human health and environment. This is one of the critical issues that have to be addressed in the near future, before massive production of nanomaterials. Manufactured nanoparticles, which are finding ever-increasing applications in industry and consumer products fall into the category of emerging contaminants with ecological and toxicological effects on populations, communities and ecosystems. The existing experimental knowledge gave evidence that inhaled nanoparticles are less efficiently separated than larger particles by the macrophage clearance mechanisms and these nanoparticles are known to translocate through the lymphatic, circulatory and nervous systems to many tissues and organs, including the brain. In this review we highlight adverse impacts of nanoparticles on human and the environment with special emphasis on green nanoscience as a sustainable alternative.
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Affiliation(s)
- Buddolla Viswanath
- Department of Bionanotechnology, Gachon University, San 65, Bokjeong-Dong, Sujeong-Gu, Seongnam-Si, Gyeonggi-Do, 461-701, Republic of Korea
| | - Sanghyo Kim
- Department of Bionanotechnology, Gachon University, San 65, Bokjeong-Dong, Sujeong-Gu, Seongnam-Si, Gyeonggi-Do, 461-701, Republic of Korea.
- Gil Medical Center, Graduate Gachon Medical Research Institute, Incheon, 405-760, Republic of Korea.
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47
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Poulsen SS, Knudsen KB, Jackson P, Weydahl IEK, Saber AT, Wallin H, Vogel U. Multi-walled carbon nanotube-physicochemical properties predict the systemic acute phase response following pulmonary exposure in mice. PLoS One 2017; 12:e0174167. [PMID: 28380028 PMCID: PMC5381870 DOI: 10.1371/journal.pone.0174167] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/04/2017] [Indexed: 01/08/2023] Open
Abstract
Pulmonary exposure to multi-walled carbon nanotubes (MWCNTs) has been linked to an increased risk of developing cardiovascular disease in addition to the well-documented physicochemical-dependent adverse lung effects. A proposed mechanism is through a strong and sustained pulmonary secretion of acute phase proteins to the blood. We identified physicochemical determinants of MWCNT-induced systemic acute phase response by analyzing effects of pulmonary exposure to 14 commercial, well-characterized MWCNTs in female C57BL/6J mice pulmonary exposed to 0, 6, 18 or 54 μg MWCNT/mouse. Plasma levels of acute phase response proteins serum amyloid A1/2 (SAA1/2) and SAA3 were determined on day 1, 28 or 92. Expression levels of hepatic Saa1 and pulmonary Saa3 mRNA levels were assessed to determine the origin of the acute phase response proteins. Pulmonary Saa3 mRNA expression levels were greater and lasted longer than hepatic Saa1 mRNA expression. Plasma SAA1/2 and SAA3 protein levels were related to time and physicochemical properties using adjusted, multiple regression analyses. SAA3 and SAA1/2 plasma protein levels were increased after exposure to almost all of the MWCNTs on day 1, whereas limited changes were observed on day 28 and 92. SAA1/2 and SAA3 protein levels did not correlate and only SAA3 protein levels correlated with neutrophil influx. The multiple regression analyses revealed a protective effect of MWCNT length on SAA1/2 protein level on day 1, such that a longer length resulted in lowered SAA1/2 plasma levels. Increased SAA3 protein levels were positively related to dose and content of Mn, Mg and Co on day 1, whereas oxidation and diameter of the MWCNTs were protective on day 28 and 92, respectively. The results of this study reveal very differently controlled pulmonary and hepatic acute phase responses after MWCNT exposure. As the responses were influenced by the physicochemical properties of the MWCNTs, this study provides the first step towards designing MWCNT that induce less SAA.
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Affiliation(s)
- Sarah S. Poulsen
- National Research Centre for the Working Environment, Copenhagen Ø, Denmark
- * E-mail:
| | | | - Petra Jackson
- National Research Centre for the Working Environment, Copenhagen Ø, Denmark
| | | | - Anne T. Saber
- National Research Centre for the Working Environment, Copenhagen Ø, Denmark
| | - Håkan Wallin
- National Research Centre for the Working Environment, Copenhagen Ø, Denmark
- Institute of Public Health, Copenhagen University, Copenhagen K, Denmark
| | - Ulla Vogel
- National Research Centre for the Working Environment, Copenhagen Ø, Denmark
- Department of Micro- and Nanotechnology, Technical University of Denmark, Kongens Lyngby, Denmark
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48
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Elkerton JS, Xu Y, Pickering JG, Ward AD. Differentiation of arterioles from venules in mouse histology images using machine learning. J Med Imaging (Bellingham) 2017; 4:021104. [PMID: 28331891 PMCID: PMC5330885 DOI: 10.1117/1.jmi.4.2.021104] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 12/12/2016] [Indexed: 11/14/2022] Open
Abstract
Analysis and morphological comparison of the arteriolar and venular components of a microvascular network are essential to our understanding of multiple diseases affecting every organ system. We have developed and evaluated the first fully automatic software system for differentiation of arterioles from venules on high-resolution digital histology images of the mouse hind limb immunostained with smooth muscle [Formula: see text]-actin. Classifiers trained on statistical and morphological features by supervised machine learning provided useful classification accuracy for differentiation of arterioles from venules, achieving an area under the receiver operating characteristic curve of 0.89. Feature selection was consistent across cross validation iterations, and a small set of two features was required to achieve the reported performance, suggesting the generalizability of the system. This system eliminates the need for laborious manual classification of the hundreds of microvessels occurring in a typical sample and paves the way for high-throughput analysis of the arteriolar and venular networks in the mouse.
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Affiliation(s)
- J. Sachi Elkerton
- Western University, Department of Medical Biophysics, 1151 Richmond Street, London, Ontario N6A 3K7, Canada
- Baines Imaging Research Laboratory, London Regional Cancer Program, 800 Commissioners Road East, London, Ontario N6A 5W9, Canada
| | - Yiwen Xu
- Western University, Department of Medical Biophysics, 1151 Richmond Street, London, Ontario N6A 3K7, Canada
- Baines Imaging Research Laboratory, London Regional Cancer Program, 800 Commissioners Road East, London, Ontario N6A 5W9, Canada
- Western University, Robarts Research Institute, 1151 Richmond Street, London, Ontario N6A 3K7, Canada
| | - J. Geoffrey Pickering
- Western University, Department of Medical Biophysics, 1151 Richmond Street, London, Ontario N6A 3K7, Canada
- Western University, Robarts Research Institute, 1151 Richmond Street, London, Ontario N6A 3K7, Canada
| | - Aaron D. Ward
- Western University, Department of Medical Biophysics, 1151 Richmond Street, London, Ontario N6A 3K7, Canada
- Baines Imaging Research Laboratory, London Regional Cancer Program, 800 Commissioners Road East, London, Ontario N6A 5W9, Canada
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49
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Lawal AO. Air particulate matter induced oxidative stress and inflammation in cardiovascular disease and atherosclerosis: The role of Nrf2 and AhR-mediated pathways. Toxicol Lett 2017; 270:88-95. [PMID: 28189649 DOI: 10.1016/j.toxlet.2017.01.017] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 01/28/2017] [Accepted: 01/31/2017] [Indexed: 12/31/2022]
Abstract
Air particulate matter (PM) is an important component of air pollution, which has been reported to play important role in the adverse health effects of the latter. Extensive experimental data and epidemiological studies have shown that the increased cardiovascular morbidity and mortality and atherosclerosis caused by air pollution are mainly due to the PM component. Implicated in these adverse health effects of PM, is their ability to induce oxidative stress and pro-inflammatory events in the vascular system. The association between the cardiovascular ischemic events and atherosclerosis induced by PM has been linked to the ultrafine and fine components. These particles have a high content of redox cyclic chemicals. This, together with their ability to combine with proatherogenic molecules enhanced tissue oxidative stress. Studies have shown that the oxidative stress induced by PM could up-regulates the expression of phase I and phase II metabolize enzymes. This up-regulation occurs by the activation of transcription factors (such as nuclear factor (erythroid-derived 2) -like 2-related factor (Nrf2) and aryl hydrocarbon receptor (AhR)). This review will focus on data supporting the role of oxidative stress and inflammation in PM-induced cardiovascular diseases and atherosclerosis and the importance of Nrf2-and AhR- dependent regulatory pathways in the PM-induced cardiovascular events and atherosclerosis.
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Affiliation(s)
- Akeem O Lawal
- Department of Biochemistry, School of Sciences, Federal University of Technology, Akure P.M.B. 704, Akure, Ondo-State, Nigeria.
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50
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The Impact of Multipollutant Clusters on the Association Between Fine Particulate Air Pollution and Microvascular Function. Epidemiology 2017; 27:194-201. [PMID: 26562062 DOI: 10.1097/ede.0000000000000415] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Prior studies including the Framingham Heart Study have suggested associations between single components of air pollution and vascular function; however, underlying mixtures of air pollution may have distinct associations with vascular function. METHODS We used a k-means approach to construct five distinct pollution mixtures from elemental analyses of particle filters, air pollution monitoring data, and meteorology. Exposure was modeled as an interaction between fine particle mass (PM2.5), and concurrent pollution cluster. Outcome variables were two measures of microvascular function in the fingertip in the Framingham Offspring and Third Generation cohorts from 2003 to 2008. RESULTS In 1,720 participants, associations between PM2.5 and baseline pulse amplitude tonometry differed by air pollution cluster (interaction P value 0.009). Higher PM2.5 on days with low mass concentrations but high proportion of ultrafine particles from traffic was associated with 18% (95% confidence interval: 4.6%, 33%) higher baseline pulse amplitude per 5 μg/m and days with high contributions of oil and wood combustion with 16% (95% confidence interval: 0.2%, 34%) higher baseline pulse amplitude. We observed no variation in associations of PM2.5 with hyperemic response to ischemia observed across air pollution clusters. CONCLUSIONS PM2.5 exposure from air pollution mixtures with large contributions of local ultrafine particles from traffic, heating oil, and wood combustion was associated with higher baseline pulse amplitude but not hyperemic response. Our findings suggest little association between acute exposure to air pollution clusters reflective of select sources and hyperemic response to ischemia, but possible associations with excessive small artery pulsatility with potentially deleterious microvascular consequences.
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