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Molavinia S, Dayer D, Khodayar MJ, Goudarzi G, Salehcheh M. Suspended particulate matter promotes epithelial-to-mesenchymal transition in alveolar epithelial cells via TGF-β1-mediated ROS/IL-8/SMAD3 axis. J Environ Sci (China) 2024; 141:139-150. [PMID: 38408815 DOI: 10.1016/j.jes.2023.07.037] [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: 12/24/2022] [Revised: 07/25/2023] [Accepted: 07/25/2023] [Indexed: 02/28/2024]
Abstract
Epidemiological evidence presents that dust storms are related to respiratory diseases, such as pulmonary fibrosis (PF). However, the precise underlying mechanisms of SPM-elicited adverse effects still need to be investigated. Epithelial-mesenchymal transition (EMT) process is a characteristic of PF. We discussed whether suspended particulate matter (SPM) is involved in EMT induction via transforming growth factor-β1 (TGF-β1). In this study, a detailed elemental analysis (55 elements), particle size, and morphology were determined. To investigate the toxicity of SPM, an MTT test was performed to detect cell viability. Next, A549 cells were exposed to selected concentrations of SPM (20 and 40 µg/mL) for single and repeated exposures. The DCFH-DA assay showed that exposure to SPM could produce reactive oxygen species (ROS). The ELISA assay demonstrated increased levels of interleukin-8 (IL-8) and TGF-β1 in the supernatant. Western blot was used to detect the expression of proteins associated with EMT and the SMAD3-dependent pathway. Results of western blot demonstrated that E-cadherin was reduced, whereas p-SMAD3, vimentin, and α-smooth muscle actin were elevated. Our findings indicated that SPM triggered EMT by induction of oxidative stress, inflammation, and the TGF-β1/SMAD3 pathway activation.
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Affiliation(s)
- Shahrzad Molavinia
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Toxicology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Student Research Committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Dian Dayer
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Javad Khodayar
- Department of Toxicology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Toxicology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Gholamreza Goudarzi
- Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Iranian Scientific Association of Clean Air, Tehran, Iran
| | - Maryam Salehcheh
- Department of Toxicology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Toxicology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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Zheng S, Jiang L, Qiu L. The effects of fine particulate matter on the blood-testis barrier and its potential mechanisms. REVIEWS ON ENVIRONMENTAL HEALTH 2024; 39:233-249. [PMID: 36863426 DOI: 10.1515/reveh-2022-0204] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 11/13/2022] [Indexed: 02/17/2024]
Abstract
With the rapid expansion of industrial scale, an increasing number of fine particulate matter (PM2.5) has bringing health concerns. Although exposure to PM2.5 has been clearly associated with male reproductive toxicity, the exact mechanisms are still unclear. Recent studies demonstrated that exposure to PM2.5 can disturb spermatogenesis through destroying the blood-testis barrier (BTB), consisting of different junction types, containing tight junctions (TJs), gap junctions (GJs), ectoplasmic specialization (ES) and desmosomes. The BTB is one of the tightest blood-tissue barriers among mammals, which isolating germ cells from hazardous substances and immune cell infiltration during spermatogenesis. Therefore, once the BTB is destroyed, hazardous substances and immune cells will enter seminiferous tubule and cause adversely reproductive effects. In addition, PM2.5 also has shown to cause cells and tissues injury via inducing autophagy, inflammation, sex hormones disorder, and oxidative stress. However, the exact mechanisms of the disruption of the BTB, induced by PM2.5, are still unclear. It is suggested that more research is required to identify the potential mechanisms. In this review, we aim to understand the adverse effects on the BTB after exposure to PM2.5 and explore its potential mechanisms, which provides novel insight into accounting for PM2.5-induced BTB injury.
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Affiliation(s)
- Shaokai Zheng
- School of Public Health, Nantong University, Nantong, P. R. China
| | - Lianlian Jiang
- School of Public Health, Nantong University, Nantong, P. R. China
| | - Lianglin Qiu
- School of Public Health, Nantong University, Nantong, P. R. China
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3
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Hejenkowska ED, Yavuz H, Swiatecka-Urban A. Beyond Borders of the Cell: How Extracellular Vesicles Shape COVID-19 for People with Cystic Fibrosis. Int J Mol Sci 2024; 25:3713. [PMID: 38612524 PMCID: PMC11012075 DOI: 10.3390/ijms25073713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
The interaction between extracellular vesicles (EVs) and SARS-CoV-2, the virus causing COVID-19, especially in people with cystic fibrosis (PwCF) is insufficiently studied. EVs are small membrane-bound particles involved in cell-cell communications in different physiological and pathological conditions, including inflammation and infection. The CF airway cells release EVs that differ from those released by healthy cells and may play an intriguing role in regulating the inflammatory response to SARS-CoV-2. On the one hand, EVs may activate neutrophils and exacerbate inflammation. On the other hand, EVs may block IL-6, a pro-inflammatory cytokine associated with severe COVID-19, and protect PwCF from adverse outcomes. EVs are regulated by TGF-β signaling, essential in different disease states, including COVID-19. Here, we review the knowledge, identify the gaps in understanding, and suggest future research directions to elucidate the role of EVs in PwCF during COVID-19.
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Zhang R, Li X, Li X, Zhang Q, Tang J, Liu Z, Song G, Jiang L, Yang F, Zhou J, Che H, Han Y, Qi X, Chen Y, Zhang S. Characterization of risks and pathogenesis of respiratory diseases caused by rural atmospheric PM 2.5. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169878. [PMID: 38190917 DOI: 10.1016/j.scitotenv.2024.169878] [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: 10/18/2023] [Revised: 12/17/2023] [Accepted: 01/01/2024] [Indexed: 01/10/2024]
Abstract
Forty-six percent of the world's population resides in rural areas, the majority of whom belong to vulnerable groups. They mainly use cheap solid fuels for cooking and heating, which release a large amount of PM2.5 and cause adverse effects to human health. PM2.5 exhibits urban-rural differences in its health risk to the respiratory system. However, the majority of research on this issue has focused on respiratory diseases induced by atmospheric PM2.5 in urban areas, while rural areas have been ignored for a long time, especially the pathogenesis of respiratory diseases. This is not helpful for promoting environmental equity to aid vulnerable groups under PM2.5 pollution. Thus, this study focuses on rural atmospheric PM2.5 in terms of its chemical components, toxicological effects, respiratory disease types, and pathogenesis, represented by PM2.5 from rural areas in the Sichuan Basin, China (Rural SC-PM2.5). In this study, organic carbon is the most significant component of Rural SC-PM2.5. Rural SC-PM2.5 significantly induces cytotoxicity, oxidative stress, and inflammatory response. Based on multiomics, bioinformatics, and molecular biology, Rural SC-PM2.5 inhibits ribonucleotide reductase regulatory subunit M2 (RRM2) to disrupt the cell cycle, impede DNA replication, and ultimately inhibit lung cell proliferation. Furthermore, this study supplements and supports the epidemic investigation. Through an analysis of the transcriptome and human disease database, it is found that Rural SC-PM2.5 may mainly involve pulmonary hypertension, sarcoidosis, and interstitial lung diseases; in particular, congenital diseases may be ignored by epidemiological surveys in rural areas, including tracheoesophageal fistula, submucous cleft of the hard palate, and congenital hypoplasia of the lung. This study contributes to a greater scientific understanding of the health risks posed by rural PM2.5, elucidates the pathogenesis of respiratory diseases, clarifies the types of respiratory diseases, and promotes environmental equity.
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Affiliation(s)
- Ronghua Zhang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Department of Respiratory and Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Xiaomeng Li
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Department of Respiratory and Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China; Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Xuan Li
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; School of Public Health, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Qin Zhang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Department of Respiratory and Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Jiancai Tang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Department of Respiratory and Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Zhenzhong Liu
- School of Public Health, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Guiqin Song
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Li Jiang
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Fumo Yang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Jiawei Zhou
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Hanxiong Che
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Yan Han
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Xin Qi
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Yang Chen
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
| | - Shumin Zhang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Department of Respiratory and Critical Care Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan, China.
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Jain R, Krishnan S, Lee S, Amoozgar Z, Subudhi S, Kumar A, Posada J, Lindeman N, Lei P, Duquette M, Roberge S, Huang P, Andersson P, Datta M, Munn L, Fukumura D. Wnt inhibition alleviates resistance to immune checkpoint blockade in glioblastoma. RESEARCH SQUARE 2023:rs.3.rs-3707472. [PMID: 38234841 PMCID: PMC10793505 DOI: 10.21203/rs.3.rs-3707472/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Wnt signaling plays a critical role in the progression and treatment outcome of glioblastoma (GBM). Here, we identified WNT7b as a heretofore unknown mechanism of resistance to immune checkpoint inhibition (αPD1) in GBM patients and murine models. Acquired resistance to αPD1 was found to be associated with the upregulation of Wnt7b and β-catenin protein levels in GBM in patients and in a clinically relevant, stem-rich GBM model. Combining the porcupine inhibitor WNT974 with αPD1 prolonged the survival of GBM-bearing mice. However, this combination had a dichotomous response, with a subset of tumors showing refractoriness. WNT974 and αPD1 expanded a subset of DC3-like dendritic cells (DCs) and decreased the granulocytic myeloid-derived suppressor cells (gMDSCs) in the tumor microenvironment (TME). By contrast, monocytic MDSCs (mMDSCs) increased, while T-cell infiltration remained unchanged, suggesting potential TME-mediated resistance. Our preclinical findings warrant the testing of Wnt7b/β-catenin combined with αPD1 in GBM patients with elevated Wnt7b/β-catenin signaling.
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Rojas GA, Saavedra N, Morales C, Saavedra K, Lanas F, Salazar LA. Modulation of the Cardiovascular Effects of Polycyclic Aromatic Hydrocarbons: Physical Exercise as a Protective Strategy. TOXICS 2023; 11:844. [PMID: 37888695 PMCID: PMC10610936 DOI: 10.3390/toxics11100844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/30/2023] [Accepted: 09/30/2023] [Indexed: 10/28/2023]
Abstract
Exposure to polycyclic aromatic hydrocarbons (PAHs) present in air pollution increases cardiovascular risk. On the contrary, physical exercise is a widely used therapeutic approach to mitigate cardiovascular risk, but its efficacy in an environment of air pollution, particularly with PAHs, remains unclear. This study investigates the effects of exercise on inflammation, endothelial dysfunction, and REDOX imbalance due to PAH exposure using a mouse model. Twenty male BALB/c mice were subjected to a mixture of PAHs (phenanthrene, fluoranthene, pyrene) in conjunction with aerobic exercise. The investigation evaluated serum levels of inflammatory cytokines, gene expression linked to inflammatory markers, endothelial dysfunction, and REDOX imbalance in aortic tissues. Furthermore, the study evaluated the expression of the ICAM-1 and VCAM-1 proteins. Exercise led to notable changes in serum inflammatory cytokines, as well as the modulation of genes associated with endothelial dysfunction and REDOX imbalance in aortic tissue. In turn, exercise produced a modulation in the protein expression of ICAM-1 and VCAM-1. The findings implicate the potential of exercise to counter PAH-induced damage, as demonstrated by changes in markers. In conclusion, exercise could mitigate the adverse effects related to exposure to PAHs present in air pollution, as evidenced by changes in inflammatory markers, endothelial dysfunction, and REDOX imbalance.
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Affiliation(s)
- Gabriel A. Rojas
- Center of Molecular Biology & Pharmacogenetics, Department of Basic Sciences, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile or (G.A.R.); (N.S.); (C.M.); (K.S.)
- PhD Program in Applied Cellular and Molecular Biology, Universidad de La Frontera, Temuco 4811230, Chile
- Escuela Kinesiología, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca 3460000, Chile
| | - Nicolás Saavedra
- Center of Molecular Biology & Pharmacogenetics, Department of Basic Sciences, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile or (G.A.R.); (N.S.); (C.M.); (K.S.)
| | - Cristian Morales
- Center of Molecular Biology & Pharmacogenetics, Department of Basic Sciences, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile or (G.A.R.); (N.S.); (C.M.); (K.S.)
- PhD Program in Applied Cellular and Molecular Biology, Universidad de La Frontera, Temuco 4811230, Chile
- Tecnología Médica, Facultad de Salud, Universidad Santo Tomás, Temuco 4811230, Chile
| | - Kathleen Saavedra
- Center of Molecular Biology & Pharmacogenetics, Department of Basic Sciences, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile or (G.A.R.); (N.S.); (C.M.); (K.S.)
| | - Fernando Lanas
- Department of Internal Medicine, Faculty of Medicine, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Luis A. Salazar
- Center of Molecular Biology & Pharmacogenetics, Department of Basic Sciences, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile or (G.A.R.); (N.S.); (C.M.); (K.S.)
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7
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Zhang Y, Xu X, Zhang G, Li Q, Luo Z. The association between PM2.5 concentration and the severity of acute asthmatic exacerbation in hospitalized children: A retrospective study in Chongqing, China. Pediatr Pulmonol 2023; 58:2733-2745. [PMID: 37530510 DOI: 10.1002/ppul.26557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 05/07/2023] [Accepted: 06/07/2023] [Indexed: 08/03/2023]
Abstract
BACKGROUND Ambient PM2.5 is associated with asthma exacerbation. The association between the concentration of PM2.5 and the severity of asthma exacerbation has yet to be thoroughly clarified. The study aims to explore the association between the piror 30 days average concentration of PM2.5 and the severity of acute asthma exacerbation in hospitalized children. METHODS A total of 269 children with acute exacerbation of asthma were enrolled and divided into three groups according to the PM2.5 exposure concentrations: group 1 (PM2.5: <37.5 μg/m3 ), group 2 (PM2.5: 37.5-75 μg/m3 ), group 3 (PM2.5: ≥75 μg/m3 ), respectively. The ordered logistic regression modeling was conducted to explore the influence of daily PM2.5 concentration on the clinical severity of children's asthma exacerbation. Multiple linear regression was conducted to explore the association between the concentration of PM2.5 and the length of stay in the hospital (LOS). We also conducted a receiver operating characteristic (ROC) curve analysis to explore the cutoff value of PM2.5 to predict the children's asthma exacerbation. RESULTS There was no statistical difference among the three groups of children in gender, age, body mass index, ethnicity, the first diagnosis of asthma, allergic history, passive smoke exposure, or family history of asthma. There was a statistically significant difference in many hospitalization characteristics (p < 0.05) among the three groups of children. Significant differences were found in terms of accessory muscles of respiration (p = 0.005), respiratory failure (p = 0.012), low respiratory tract infectious (p = 0.020), and the severity of asthma exacerbation (p < 0.001) among the three groups. PM2.5 concentration was primarily positively correlated to neutrophile inflammation. The ordered multivariate logistic regression model showed that higher PM2.5 concentrations were significantly associated with greater odds of more severe asthma exacerbation in one and two-pollutant models. The adjusted odds ratio of severe asthma exacerbation was 1.029 (1.009, 1.049) in the one-pollutant model. The most significant odds ratio of severe asthma exacerbation was 1.050 (1.027, 1.073) when controlling NO2 in the two-pollutant models. Multiple linear regression showed that PM2.5 concentration was significantly associated with longer LOS in both one-pollutant and two-pollutant models. By performing ROC analysis, the average daily concentration of 44.5 µg/m3 of PM2.5 (AUC = 0.622, p = 0.002) provided the best performance to predict severe asthma of children exacerbation with a sensitivity of 59.2% and a specificity of 63.8%. CONCLUSION The increased prior 30 days average concentration of PM2.5 was associated with greater asthma exacerbation severity and longer length of stay in the hospital of children with asthma exacerbation.
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Affiliation(s)
- Yueming Zhang
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Department of Respiratory, Xi'an Children's Hospital, Xi'an, Shaanxi, China
| | - Ximing Xu
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
- Big Data Center for Children's Medical Care, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Guangli Zhang
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Qinyuan Li
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Zhengxiu Luo
- Department of Respiratory Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, National Clinical Research Center for Child Health and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
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8
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Koning T, Cordova F, Aguilar G, Sarmiento J, Mardones GA, Boric M, Varas-Godoy M, Lladser A, Duran WN, Ehrenfeld P, Sanchez FA. S-Nitrosylation in endothelial cells contributes to tumor cell adhesion and extravasation during breast cancer metastasis. Biol Res 2023; 56:51. [PMID: 37773178 PMCID: PMC10540418 DOI: 10.1186/s40659-023-00461-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 08/23/2023] [Indexed: 10/01/2023] Open
Abstract
BACKGROUND Nitric oxide is produced by different nitric oxide synthases isoforms. NO activates two signaling pathways, one dependent on soluble guanylate cyclase and protein kinase G, and other where NO post-translationally modifies proteins through S-nitrosylation, which is the modification induced by NO in free-thiol cysteines in proteins to form S-nitrosothiols. High levels of NO have been detected in blood of breast cancer patients and increased NOS activity has been detected in invasive breast tumors compared to benign or normal breast tissue, suggesting a positive correlation between NO biosynthesis, degree of malignancy and metastasis. During metastasis, the endothelium plays a key role allowing the adhesion of tumor cells, which is the first step in the extravasation process leading to metastasis. This step shares similarities with leukocyte adhesion to the endothelium, and it is plausible that it may also share some regulatory elements. The vascular cell adhesion molecule-1 (VCAM-1) expressed on the endothelial cell surface promotes interactions between the endothelium and tumor cells, as well as leukocytes. Data show that breast tumor cells adhere to areas in the vasculature where NO production is increased, however, the mechanisms involved are unknown. RESULTS We report that the stimulation of endothelial cells with interleukin-8, and conditioned medium from breast tumor cells activates the S-nitrosylation pathway in the endothelium to induce leukocyte adhesion and tumor cell extravasation by a mechanism that involves an increased VCAM-1 cell surface expression in endothelial cells. We identified VCAM-1 as an S-nitrosylation target during this process. The inhibition of NO signaling and S-nitrosylation blocked the transmigration of tumor cells through endothelial monolayers. Using an in vivo model, the number of lung metastases was inhibited in the presence of the S-nitrosylation inhibitor N-acetylcysteine (NAC), which was correlated with lower levels of S-nitrosylated VCAM-1 in the metastases. CONCLUSIONS S-Nitrosylation in the endothelium activates pathways that enhance VCAM-1 surface localization to promote binding of leukocytes and extravasation of tumor cells leading to metastasis. NAC is positioned as an important tool that might be tested as a co-therapy against breast cancer metastasis.
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Affiliation(s)
- T Koning
- Instituto de Inmunología, Facultad de Medicina, Universidad Austral de Chile, 511-0566, Valdivia, Chile
- Escuela de Graduados de Ciencias, Universidad Austral de Chile, 511-0566, Valdivia, Chile
| | - F Cordova
- Instituto de Inmunología, Facultad de Medicina, Universidad Austral de Chile, 511-0566, Valdivia, Chile
| | - G Aguilar
- Instituto de Inmunología, Facultad de Medicina, Universidad Austral de Chile, 511-0566, Valdivia, Chile
| | - J Sarmiento
- Instituto de Fisiología, Facultad de Medicina, Universidad Austral de Chile, 511-0566, Valdivia, Chile
| | - G A Mardones
- Instituto de Fisiología, Facultad de Medicina, Universidad Austral de Chile, 511-0566, Valdivia, Chile
- Escuela de Medicina, Facultad de Medicina y Ciencia, Universidad San Sebastián, Valdivia, Chile
| | - M Boric
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile
| | - M Varas-Godoy
- Cancer Cell Biology Lab., Centro de Biología Celular y Biomedicina (CEBICEM), Facultad de Medicina y Ciencia, Universidad San Sebastián, 7510157, Santiago, Chile
- Centro Ciencia & Vida, Fundación Ciencia & Vida, 7780272, Santiago, Chile
| | - A Lladser
- Centro Ciencia & Vida, Fundación Ciencia & Vida, 7780272, Santiago, Chile
- Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago, Chile
| | - W N Duran
- Department of Pharmacology, Physiology and Neuroscience, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, 07103, USA
| | - P Ehrenfeld
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, 511-0566, Valdivia, Chile.
- Centro Interdisciplinario de Estudios del Sistema Nervioso, Universidad Austral de Chile, 5110566, Valdivia, Chile.
| | - F A Sanchez
- Instituto de Inmunología, Facultad de Medicina, Universidad Austral de Chile, 511-0566, Valdivia, Chile.
- Centro Interdisciplinario de Estudios del Sistema Nervioso, Universidad Austral de Chile, 5110566, Valdivia, Chile.
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9
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Hao S, Chen Z, Gu Y, Chen L, Sheng F, Xu Y, Wu D, Han Y, Lu B, Chen S, Zhao W, Yin H, Wang X, Riazuddin SA, Lou X, Fu Q, Yao K. Long-term PM2.5 exposure disrupts corneal epithelial homeostasis by impairing limbal stem/progenitor cells in humans and rat models. Part Fibre Toxicol 2023; 20:36. [PMID: 37759270 PMCID: PMC10523760 DOI: 10.1186/s12989-023-00540-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/13/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Limbal stem/progenitor cells (LSPCs) play a crucial role in maintaining corneal health by regulating epithelial homeostasis. Although PM2.5 is associated with the occurrence of several corneal diseases, its effects on LSPCs are not clearly understood. METHODS In this study, we explored the correlation between PM2.5 exposure and human limbal epithelial thickness measured by Fourier-domain Optical Coherence Tomography in the ophthalmologic clinic. Long- and short-term PM2.5 exposed-rat models were established to investigate the changes in LSPCs and the associated mechanisms. RESULTS We found that people living in regions with higher PM2.5 concentrations had thinner limbal epithelium, indicating the loss of LSPCs. In rat models, long-term PM2.5 exposure impairs LSPCs renewal and differentiation, manifesting as corneal epithelial defects and thinner epithelium in the cornea and limbus. However, LSPCs were activated in short-term PM2.5-exposed rat models. RNA sequencing implied that the circadian rhythm in LSPCs was perturbed during PM2.5 exposure. The mRNA level of circadian genes including Per1, Per2, Per3, and Rev-erbα was upregulated in both short- and long-term models, suggesting circadian rhythm was involved in the activation and dysregulation of LSPCs at different stages. PM2.5 also disturbed the limbal microenvironment as evidenced by changes in corneal subbasal nerve fiber density, vascular density and permeability, and immune cell infiltration, which further resulted in the circadian mismatches and dysfunction of LSPCs. CONCLUSION This study systematically demonstrates that PM2.5 impairs LSPCs and their microenvironment. Moreover, we show that circadian misalignment of LSPCs may be a new mechanism by which PM2.5 induces corneal diseases. Therapeutic options that target circadian rhythm may be viable options for improving LSPC functions and alleviating various PM2.5-associated corneal diseases.
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Affiliation(s)
- Shengjie Hao
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China
| | - Zhijian Chen
- Department of Environmental and Occupational Health, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, Zhejiang Province, China
| | - Yuzhou Gu
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China
| | - Lu Chen
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China
| | - Feiyin Sheng
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China
| | - Yili Xu
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China
| | - Di Wu
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China
| | - Yu Han
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China
| | - Bing Lu
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China
| | - Shuying Chen
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China
| | - Wei Zhao
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China
| | - Houfa Yin
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China
| | - Xiaofeng Wang
- Department of Environmental and Occupational Health, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, Zhejiang Province, China
| | - S Amer Riazuddin
- The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Xiaoming Lou
- Department of Environmental and Occupational Health, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, 310051, Zhejiang Province, China.
| | - Qiuli Fu
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China.
| | - Ke Yao
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang Provincial Key Lab of Ophthalmology, Zhejiang University, Hangzhou, 310009, Zhejiang Province, China.
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Mi B, Xiong Y, Zha K, Cao F, Zhou W, Abbaszadeh S, Ouyang L, Liao Y, Hu W, Dai G, Zhao Z, Feng Q, Shahbazi MA, Liu G. Immune homeostasis modulation by hydrogel-guided delivery systems: a tool for accelerated bone regeneration. Biomater Sci 2023; 11:6035-6059. [PMID: 37522328 DOI: 10.1039/d3bm00544e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Immune homeostasis is delicately mediated by the dynamic balance between effector immune cells and regulatory immune cells. Local deviations from immune homeostasis in the microenvironment of bone fractures, caused by an increased ratio of effector to regulatory cues, can lead to excessive inflammatory conditions and hinder bone regeneration. Therefore, achieving effective and localized immunomodulation of bone fractures is crucial for successful bone regeneration. Recent research has focused on developing localized and specific immunomodulatory strategies using local hydrogel-based delivery systems. In this review, we aim to emphasize the significant role of immune homeostasis in bone regeneration, explore local hydrogel-based delivery systems, discuss emerging trends in immunomodulation for enhancing bone regeneration, and address the limitations of current delivery strategies along with the challenges of clinical translation.
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Affiliation(s)
- Bobin Mi
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Yuan Xiong
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Kangkang Zha
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Faqi Cao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Wu Zhou
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Samin Abbaszadeh
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Lizhi Ouyang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Yuheng Liao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Weixian Hu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
| | - Guandong Dai
- Department of Orthopedic Surgery, Pingshan District People's Hospital of Shenzhen, Pingshan General Hospital of Southern Medical University, Shenzhen 518118, China
| | - Zhiming Zhao
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, Suizhou 441300, China
| | - Qian Feng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing 400044, China.
| | - Mohammad-Ali Shahbazi
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
- W.J. Kolff Institute for Biomedical Engineering and Materials Science, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands.
| | - Guohui Liu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan 430022, China
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11
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Wu H, Eckhardt CM, Baccarelli AA. Molecular mechanisms of environmental exposures and human disease. Nat Rev Genet 2023; 24:332-344. [PMID: 36717624 PMCID: PMC10562207 DOI: 10.1038/s41576-022-00569-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2022] [Indexed: 02/01/2023]
Abstract
A substantial proportion of disease risk for common complex disorders is attributable to environmental exposures and pollutants. An appreciation of how environmental pollutants act on our cells to produce deleterious health effects has led to advances in our understanding of the molecular mechanisms underlying the pathogenesis of chronic diseases, including cancer and cardiovascular, neurodegenerative and respiratory diseases. Here, we discuss emerging research on the interplay of environmental pollutants with the human genome and epigenome. We review evidence showing the environmental impact on gene expression through epigenetic modifications, including DNA methylation, histone modification and non-coding RNAs. We also highlight recent studies that evaluate recently discovered molecular processes through which the environment can exert its effects, including extracellular vesicles, the epitranscriptome and the mitochondrial genome. Finally, we discuss current challenges when studying the exposome - the cumulative measure of environmental influences over the lifespan - and its integration into future environmental health research.
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Affiliation(s)
- Haotian Wu
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Christina M Eckhardt
- Department of Pulmonary, Allergy and Critical Care Medicine, Columbia University College of Physicians and Surgeons, New York, NY, USA
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA.
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12
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Zhang RD, Chen C, Wang P, Fang Y, Jiang LQ, Fang X, Zhao Y, Ni J, Wang DG, Pan HF. Air pollution exposure and auto-inflammatory and autoimmune diseases of the musculoskeletal system: a review of epidemiologic and mechanistic evidence. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023:10.1007/s10653-023-01495-x. [PMID: 36735155 DOI: 10.1007/s10653-023-01495-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
Auto-inflammatory and autoimmune diseases of the musculoskeletal system can be perceived as a spectrum of rheumatic diseases, with the joints and connective tissues are eroded severely that progressively develop chronic inflammation and lesion. A wide range of risk factors represented by genetic and environmental factors have been uncovered by population-based surveys and experimental studies. Lately, the exposure to air pollution has been found to be potentially involved in the mechanisms of occurrence or development of such diseases, principally manifest in oxidative stress, local and systemic inflammation, and epigenetic modifications, as well as the mitochondrial dysfunction, which has been reported to participate in the intermediate links. The lungs might serve as a starting area of air pollutants, which would cause oxidative stress-induced bronchial-associated lymphoid tissue (iBALT) to further to influence T, B cells, and the secretion of pro-inflammatory cytokines. The binding of aromatic hydrocarbon receptor (AhR) to the corresponding contaminant ligands tends to regulate the reaction of Th17 and Tregs. Furthermore, air pollution components might spur on immune and inflammatory responses by damaging mitochondria that could interact with and exacerbate oxidative stress and pro-inflammatory cytokines. In this review, we focused on the association between air pollution and typical auto-inflammatory and autoimmune diseases of the musculoskeletal system, mainly including osteoarthritis (OA), rheumatoid arthritis (RA), spondyloarthritis (SpA) and juvenile idiopathic arthritis (JIA), and aim to collate the mechanisms involved and the potential channels. A complete summary and in-depth understanding of the autoimmune and inflammatory effects of air pollution exposure should hopefully contribute new perspectives on how to formulate better public health policies to alleviate the adverse health effects of air pollutants.
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Affiliation(s)
- Ruo-Di Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Cong Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Peng Wang
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
- Teaching Center for Preventive Medicine, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | - Yang Fang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Ling-Qiong Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Xi Fang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Yan Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Jing Ni
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - De-Guang Wang
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
- Department of Nephrology, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China.
- Institute of Kidney Disease, Inflammation and Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, Hefei, 230032, Anhui, People's Republic of China.
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Yu R, Hou C, Peng Y, Zhu X, Shi C, Huang D, Miao Y, Li Q. The mechanism underlying ICAM-1 and E-selectin-mediated hypertriglyceridemic pancreatitis-associated lung injury. Mol Immunol 2022; 152:55-66. [DOI: 10.1016/j.molimm.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 10/03/2022] [Accepted: 10/05/2022] [Indexed: 11/07/2022]
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The macrophage senescence hypothesis: the role of poor heat shock response in pulmonary inflammation and endothelial dysfunction following chronic exposure to air pollution. Inflamm Res 2022; 71:1433-1448. [PMID: 36264363 DOI: 10.1007/s00011-022-01647-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 07/18/2022] [Accepted: 09/14/2022] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION Cardiovascular diseases (CVD) have been associated with high exposure to fine particulate air pollutants (PM2.5). Alveolar macrophages are the first defense against inhaled particles. As soon as they phagocytize the particles, they reach an inflammatory phenotype, which affects the surrounding cells and associates with CVD. Not coincidentally, CVD are marked by a depleted heat shock response (HSR), defined by a deficit in inducing 70-kDa heat shock protein (HSP70) expression during stressful conditions. HSP70 is a powerful anti-inflammatory chaperone, whose reduced levels trigger a pro-inflammatory milieu, cellular senescence, and a senescence-associated secretory phenotype (SASP). However, whether macrophage senescence is the main mechanism by which PM2.5 propagates low-grade inflammation remains unclear. OBJECTIVE AND DESIGN In this article, we review evidence supporting that chronic exposure to PM2.5 depletes HSR and determines the ability to solve the initial stress. RESULTS AND DISCUSSION When exposed to PM2.5, macrophages increase the production of reactive oxygen species, which activate nuclear factor-kappa B (NF-κB). NF-κB is naturally a pro-inflammatory factor that drives prostaglandin E2 (PGE2) synthesis and causes fever. PGE2 can be converted into prostaglandin A2, a powerful inducer of HSR. Therefore, when transiently activated, NF-κB can trigger the anti-inflammatory response through negative feedback, by inducing HSP70 expression. However, when chronically activated, NF-κB heads a set of pathways involved in mitochondrial dysfunction, endoplasmic reticulum stress, unfolded protein response, inflammasome activation, and apoptosis. During chronic exposure to PM2.5, cells cannot properly express sirtuin-1 or activate heat shock factor-1 (HSF-1), which delays the resolution phase of inflammation. Since alveolar macrophages are the first immune defense against PM2.5, we suppose that the pollutant impairs HSR and, consequently, induces cellular senescence. Accordingly, senescent macrophages change its secretory phenotype to a more inflammatory one, known as SASP. Finally, macrophages' SASP would propagate the systemic inflammation, leading to endothelial dysfunction and atherosclerosis.
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Gao J, Lei T, Wang H, Luo K, Wang Y, Cui B, Yu Z, Hu X, Zhang F, Chen Y, Ding W, Lu Z. Dimethylarginine dimethylaminohydrolase 1 protects PM 2.5 exposure-induced lung injury in mice by repressing inflammation and oxidative stress. Part Fibre Toxicol 2022; 19:64. [PMID: 36242005 PMCID: PMC9569114 DOI: 10.1186/s12989-022-00505-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 10/06/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Airborne fine particulate matter with aerodynamic diameter ≤ 2.5 μm (PM2.5) pollution is associated with the prevalence of respiratory diseases, including asthma, bronchitis and chronic obstructive pulmonary disease. In patients with those diseases, circulating asymmetric dimethylarginine (ADMA) levels are increased, which contributes to airway nitric oxide deficiency, oxidative stress and inflammation. Overexpression of dimethylarginine dimethylaminohydrolase 1 (DDAH1), an enzyme degrading ADMA, exerts protective effects in animal models. However, the impact of DDAH1/ADMA on PM2.5-induced lung injury has not been investigated. METHODS Ddah1-/- and DDAH1-transgenic mice, as well as their respective wild-type (WT) littermates, were exposed to either filtered air or airborne PM2.5 (mean daily concentration ~ 50 µg/m3) for 6 months through a whole-body exposure system. Mice were also acutely exposed to 10 mg/kg PM2.5 and/or exogenous ADMA (2 mg/kg) via intratracheal instillation every other day for 2 weeks. Inflammatory response, oxidative stress and related gene expressions in the lungs were examined. In addition, RAW264.7 cells were exposed to PM2.5 and/or ADMA and the changes in intracellular oxidative stress and inflammatory response were determined. RESULTS Ddah1-/- mice developed more severe lung injury than WT mice after long-term PM2.5 exposure, which was associated with greater induction of pulmonary oxidative stress and inflammation. In the lungs of PM2.5-exposed mice, Ddah1 deficiency increased protein expression of p-p65, iNOS and Bax, and decreased protein expression of Bcl-2, SOD1 and peroxiredoxin 4. Conversely, DDAH1 overexpression significantly alleviated lung injury, attenuated pulmonary oxidative stress and inflammation, and exerted opposite effects on those proteins in PM2.5-exposed mice. In addition, exogenous ADMA administration could mimic the effect of Ddah1 deficiency on PM2.5-induced lung injury, oxidative stress and inflammation. In PM2.5-exposed macrophages, ADMA aggravated the inflammatory response and oxidative stress in an iNOS-dependent manner. CONCLUSION Our data revealed that DDAH1 has a marked protective effect on long-term PM2.5 exposure-induced lung injury.
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Affiliation(s)
- Junling Gao
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Tong Lei
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Hongyun Wang
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China.,Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Kai Luo
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Yuanli Wang
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Bingqing Cui
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Zhuoran Yu
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Xiaoqi Hu
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Fang Zhang
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China
| | - Yingjie Chen
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Wenjun Ding
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China.
| | - Zhongbing Lu
- College of Life Sciences, University of Chinese Academy of Sciences, 19A Yuquanlu, Beijing, 100049, China.
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Zhou Z, Qin M, Khodahemmati S, Li W, Niu B, Li J, Liu Y, Gao J. Gene expression in human umbilical vein endothelial cells exposed to fine particulate matter: RNA sequencing analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:2052-2064. [PMID: 34102927 DOI: 10.1080/09603123.2021.1935785] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/25/2021] [Indexed: 06/12/2023]
Abstract
Exposure to airborne particulate matter (PM2.5) is associated with cardiovascular diseases. In order to investigate the molecular mechanisms of air pollution-induced CVDs toxicity, human umbilical vein endothelial cells (HUVECs) were exposed to PM2.5 collected from January, 2016 winter in Beijing, China. We performed RNA sequencing to elucidate key molecular mechanism of PM 2.5-mediated toxicity in HUVECs. A total of 1753 genes, 864 up-regulated and 889 down-regulated, were observed to be differentially expressed genes (DEGs). Among these, genes involved in metabolic response, oxidative stress, inflammatory response, and vascular dysfunction were significantly differentially expressed (log2 FC > 4). The results were validated by quantitative real-time PCR (qPCR) and Western blot for CYP1B1, HMOX1, IL8, and GJA4. Pathway analysis revealed that DEGs were involved in the biological processes related to metabolism, inflammation, and host defense against environmental insults. This research is providing a further understanding of the mechanisms underlying PM2.5-induced cardiovascular diseases (CVDs).
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Affiliation(s)
- Zhixiang Zhou
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, China
| | - Mengnan Qin
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, China
| | - Sara Khodahemmati
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, China
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, China
| | - Wenke Li
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, China
| | - Bingyu Niu
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, China
| | - Jiangshuai Li
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, China
| | - Yanghua Liu
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, China
| | - Jingfeng Gao
- National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing, China
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A Comprehensive Review on Distribution, Pharmacological Properties, and Mechanisms of Action of Sesamin. J CHEM-NY 2022. [DOI: 10.1155/2022/4236525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Sesamin is a kind of fat-soluble lignan extracted from sesame seeds or other plants. It has attracted more and more attention because of its extensive pharmacological activities. In this study, we systematically summarized the pharmacological activities of sesamin including antioxidant, anti-inflammatory, anticancer, protection of liver and kidney, prevention of diabetes, hypertension, and atherosclerosis. Studies focus on the abilities of sesamin to attenuate oxidative stress by reducing the levels of ROS and MDA, to inhibit the release of pro-inflammatory cytokines (TNF-α, IL-1β, IL-6, etc.), and to induce apoptosis and autophagy in cancer cells through a variety of signaling pathways such as NF-κB, JNK, p38 MAPK, PI3K/AKT, caspase-3, and p53. By inhibiting the production of ROS, sesamin can also enhance the biological activities of NO in blood vessels, improve endothelial dysfunction and hypertension, and change the process of atherosclerotic lesion formation. In line with this, the various pharmacological properties of sesamin have been discussed in this review so that we can have a deeper understanding of the pharmacological activities of sesamin and clear the future development direction of sesamin.
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18
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Jia R, Wei M, Zhang X, Du R, Sun W, Wang L, Song L. Pyroptosis participates in PM 2.5-induced air-blood barrier dysfunction. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:60987-60997. [PMID: 35435555 DOI: 10.1007/s11356-022-20098-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Epidemiological studies have shown that particulate matters with diameter less than 2.5 μm (PM2.5) play an important role in inducing and promoting respiratory diseases, but its underlying mechanism remains to be explored. The air-blood barrier, also known as the alveolar-capillary barrier, is the key element of the lung, working as the site of oxygen and carbon dioxide exchange between pulmonary vasculatures. In this study, a mouse PM2.5 exposure model was established, which leads to an induced lung injury and air-blood barrier disruption. Oxidative stress and pyroptosis were observed in this process. After reducing the oxidative stress by N-acetyl-L-cysteine (NAC) treatment, the air-blood barrier function was improved and the effect of PM2.5 was alleviated. The level of pyroptosis and related pathway were also effectively relieved. These results indicate that acute PM2.5 exposure can cause lung injury and the alveolar-capillary barrier disruption by inducing reactive oxygen species (ROS) with the participation of pyroptosis pathway.
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Affiliation(s)
- Ruxue Jia
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, People's Republic of China, 116044
- Department of Cardiology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, People's Republic of China, 116023
| | - Min Wei
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, People's Republic of China, 116044
| | - Xiao Zhang
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, People's Republic of China, 116044
| | - Rui Du
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, People's Republic of China, 116044
| | - Wenping Sun
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, People's Republic of China, 116044
| | - Lili Wang
- Department of Cardiology, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province, People's Republic of China, 116023
| | - Laiyu Song
- College of Medical Laboratory, Dalian Medical University, Dalian, Liaoning Province, People's Republic of China, 116044.
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Matsuda M, Inaba M, Hamaguchi J, Tomita H, Omori M, Shimora H, Sakae H, Kitatani K, Nabe T. Local IL-10 replacement therapy was effective for steroid-insensitive asthma in mice. Int Immunopharmacol 2022; 110:109037. [PMID: 35810490 DOI: 10.1016/j.intimp.2022.109037] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/27/2022] [Accepted: 07/04/2022] [Indexed: 01/24/2023]
Abstract
Subgroups of patients with severe asthma showing marked increases in sputum eosinophils and/or neutrophils are insensitive to corticosteroids. Previous reports have shown that exogenous administration of an anti-inflammatory cytokine, interleukin (IL)-10 negatively regulated both eosinophilic and neutrophilic migration into tissues. The objective of this study was to elucidate whether intratracheal IL-10 administration suppresses asthmatic responses in a steroid-insensitive model of mice. Ovalbumin (OVA)-sensitized BALB/c mice were intratracheally challenged with OVA at 500 µg/animal four times. Dexamethasone (1 mg/kg, intraperitoneal) or IL-10 (25 ng/mouse, intratracheal) was administered during the multiple challenges. The number of leukocytes, expression of intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and IL-10 receptor in the lung, and the development of airway remodeling and hyperresponsiveness were evaluated after the fourth challenge. Consistent with our previous study, dexamethasone hardly suppressed the development of airway remodeling and hyperresponsiveness. Although intratracheal IL-10 administration did not affect the development of airway remodeling, the infiltration of eosinophils and neutrophils, and the development of airway hyperresponsiveness were significantly inhibited. Moreover, IL-10 administration significantly decreased the numbers of ICAM-1+ and VCAM-1+ pulmonary vascular endothelial cells, which express IL-10 receptor 1, even though neither production of eosinophilic nor neutrophilic cytokines in the lung was inhibited. Therefore, IL-10 can suppress eosinophil and neutrophil infiltration by inhibiting the proliferation of ICAM-1+ and VCAM-1+ pulmonary vascular endothelial cells, resulting in inhibition of airway hyperresponsiveness in steroid-insensitive asthmatic mice. IL-10 replacement therapy may be clinically useful for the treatment of steroid-insensitive asthma.
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Affiliation(s)
- Masaya Matsuda
- Laboratory of Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan
| | - Miki Inaba
- Laboratory of Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan
| | - Junpei Hamaguchi
- Laboratory of Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan
| | - Hiro Tomita
- Laboratory of Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan
| | - Miyu Omori
- Laboratory of Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan
| | - Hayato Shimora
- Laboratory of Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan
| | - Harumi Sakae
- Laboratory of Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan
| | - Kazuyuki Kitatani
- Laboratory of Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan
| | - Takeshi Nabe
- Laboratory of Immunopharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan.
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20
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Huang Z, Wang H, Long J, Lu Z, Chun C, Li X. Neutrophil Membrane-Coated Therapeutic Liposomes for Targeted Treatment in Acute Lung Injury. Int J Pharm 2022; 624:121971. [PMID: 35787461 PMCID: PMC9365401 DOI: 10.1016/j.ijpharm.2022.121971] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/22/2022] [Accepted: 06/29/2022] [Indexed: 10/26/2022]
Abstract
Acute lung injury (ALI) is one of the most common comorbidities associated with sepsis and can lead to acute respiratory distress syndrome. Intense inflammatory response due to excessive activation and uncontrolled infiltration of neutrophils are the central processes in the development of sepsis-induced ALI. In this study, a biomimetic nanoplatform that is a neutrophil membrane-coated liposome-loaded acidic fibroblast growth factor (aFGF@NMLs), which can selectively target the inflamed lung and effectively alleviate sepsis-induced ALI via inflammation suppression, was constructed. In vitro findings revealed that aFGF@NMLs has pro-inflammatory cytokine binding capabilities and can promote cellular uptake, substantially attenuate inflammatory responses, and enhance cellular antioxidant capacity. The in vivo results show that aFGF@NMLs can specifically accumulate in injured lungs in ALI mice after intravenous injection, thereby reducing the secretion of pro-inflammatory cytokines, inhibiting pulmonary cell apoptosis, and promoting lung function recovery. In conclusion, aFGF@NMLs demonstrated anti-inflammatory effects, mitigated the progression of ALI, and contributed to the disease prognosis. This research offers an innovative strategy and concept for the clinical treatment of diseases related to pulmonary inflammation.
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Affiliation(s)
- Zhiwei Huang
- Department of Emergency, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China; Research Institute of Pharmaceutical Sciences, College of Pharmacy, Chonnam National University, Gwangju 61186, Republic of Korea; School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Hengcai Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Juan Long
- Department of Emergency, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China; Wenzhou Key Laboratory of emergency and disaster medicine, Wenzhou 325035, China
| | - Zhongqiu Lu
- Department of Emergency, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China; Wenzhou Key Laboratory of emergency and disaster medicine, Wenzhou 325035, China
| | - Changju Chun
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Chonnam National University, Gwangju 61186, Republic of Korea.
| | - Xinze Li
- Department of Emergency, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China; Wenzhou Key Laboratory of emergency and disaster medicine, Wenzhou 325035, China.
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21
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Zhang S, Zhang R, Guo D, Han Y, Song G, Yang F, Chen Y. Molecular mechanism of Pulmonary diseases caused by exposure to urban PM 2.5 in Chengdu-Chongqing Economic Circle, China. ENVIRONMENT INTERNATIONAL 2022; 165:107292. [PMID: 35594815 DOI: 10.1016/j.envint.2022.107292] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 04/26/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
Chengdu-Chongqing Economic Circle (CD-CQ Economic Circle) is one of China's four major economic circles and five major urban agglomerations located in Southwest China's Sichuan Basin. The CD-CQ Economic Circle, with its strong economic development and dense population, suffers from severe PM2.5 pollution, which is known to cause chronic and acute respiratory ailments. This study examined the lung disease-related hub genes, functions, and pathways that are affected by PM2.5 in summer and winter in the two central megacities of Chengdu and Chongqing. PM2.5 frequently activates lung disease-associated hub genes, most notably the transcription factor TP53. TP53 interacts with the majority of lung disease-related genes and regulates important and commonly occurring biological functions and pathways, including gland development, aging, reactive oxygen species metabolic process, the response to oxygen levels, and fluid shear stress, among others. Thus, PM2.5 has been shown to target TP53 for regulating lung disease genes/functions/pathways, thereby influencing the occurrence and progression of lung illnesses. Notably, PM2.5 may be associated with small cell carcinoma of the lung due to the high number of lung disease genes, hub genes, critical functions, and pathways enriched in this kind of cancer. These findings shed fresh light on the molecular pathophysiology of PM2.5 pollution on the respiratory system in the CD-CQ Economic Circle and aid in the development of novel techniques for mitigating PM2.5 pollution-associated respiratory illness.
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Affiliation(s)
- Shumin Zhang
- School of Basic Medical Sciences and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China; Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Ronghua Zhang
- School of Basic Medical Sciences and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Dongmei Guo
- School of Basic Medical Sciences and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Yan Han
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Guiqin Song
- School of Basic Medical Sciences and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Fumo Yang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Yang Chen
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
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22
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TPGS-based and S-thanatin functionalized nanorods for overcoming drug resistance in Klebsiella pneumonia. Nat Commun 2022; 13:3731. [PMID: 35768446 PMCID: PMC9243133 DOI: 10.1038/s41467-022-31500-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 06/20/2022] [Indexed: 11/12/2022] Open
Abstract
Tigecycline is regarded as the last line of defense to combat multidrug-resistant Klebsiella pneumoniae. However, increasing utilization has led to rising drug resistance and treatment failure. Here, we design a D-alpha tocopheryl polyethylene glycol succinate-modified and S-thanatin peptide-functionalized nanorods based on calcium phosphate nanoparticles for tigecycline delivery and pneumonia therapy caused by tigecycline-resistant Klebsiella pneumoniae. After incubation with bacteria, the fabricated nanorods can enhance tigecycline accumulation in bacteria via the inhibitory effect on efflux pumps exerted by D-alpha tocopheryl polyethylene glycol succinate and the targeting capacity of S-thanatin to bacteria. The synergistic antibacterial capacity between S-thanatin and tigecycline further enhances the antibacterial activity of nanorods, thus overcoming the tigecycline resistance of Klebsiella pneumoniae. After intravenous injection, nanorods significantly reduces the counts of white blood cells and neutrophils, decreases bacterial colonies, and ameliorates neutrophil infiltration events, thereby largely increasing the survival rate of mice with pneumonia. These findings may provide a therapeutic strategy for infections caused by drug-resistant bacteria. Overproduction of efflux pumps represents an important mechanism of Klebsiella pneumonia resistance to tigecycline. Here, the authors design TPGS- and S-thanatin functionalized nanorods loaded with tigecycline to increase drug accumulation inside bacteria and overcome bacterial resistance.
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23
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Griesser E, Schönberger T, Stierstorfer B, Wyatt H, Rist W, Lamla T, Thomas MJ, Lamb D, Geillinger-Kästle KE. Characterization of a flexible AAV-DTR/DT mouse model of acute epithelial lung injury. Am J Physiol Lung Cell Mol Physiol 2022; 323:L206-L218. [PMID: 35762632 DOI: 10.1152/ajplung.00364.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Animal models are important to mimic certain pathways or biological aspects of human pathologies including acute and chronic pulmonary diseases. We developed a novel and flexible mouse model of acute epithelial lung injury based on adeno-associated virus (AAV) variant 6.2 mediated expression of the human diphtheria toxin receptor (DTR). Following intratracheal administration of diphtheria toxin (DT), a cell-specific death of bronchial and alveolar epithelial cells can be observed. In contrast to other lung injury models, the here described mouse model provides the possibility of targeted injury using specific tropisms of AAV vectors or cell type specific promotors to drive the human DTR expression. Also, generation of cell specific mouse lines is not required. Detailed characterization of the AAV-DTR/DT mouse model including titration of viral genome (vg) load and administered DT amount revealed increasing cell numbers in bronchoalveolar lavage (BAL; macrophages, neutrophils, and unspecified cells) and elevation of degenerated cells and infiltrated leukocytes in lung tissue, dependent of vg load and DT dose. Cytokine levels in BAL fluid showed different patterns with higher vg load, e.g. IFNγ, TNFα, and IP10 increasing and IL-5 and IL-6 decreasing, while lung function was not affected. Additionally, laser-capture microdissection (LCM)-based proteomics of bronchial epithelium and alveolar tissue revealed upregulated immune and inflammatory response in all regions and extracellular matrix deposition in infiltrated alveoli. Overall, our novel AAV-DTR/DT model allows investigation of repair mechanisms following epithelial injury and resembles specific mechanistic aspects of acute and chronic pulmonary diseases.
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Affiliation(s)
- Eva Griesser
- Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss, Germany, Germany
| | - Tanja Schönberger
- Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss, Germany, Germany
| | - Birgit Stierstorfer
- Non-clinical Drug Safety, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach an der Riss, Germany
| | - Hannah Wyatt
- Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss, Germany, Germany
| | - Wolfgang Rist
- Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss, Germany, Germany
| | - Thorsten Lamla
- Drug Discovery Sciences, Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss, Germany, Germany
| | - Matthew James Thomas
- Immunology and Respiratory Diseases Research, Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss, Germany.,University of Bath, Bath, United Kingdom
| | - David Lamb
- Immunology and Respiratory Diseases Research, Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss, Germany
| | - Kerstin E Geillinger-Kästle
- Immunology and Respiratory Diseases Research, Boehringer Ingelheim Pharma GmbH and Co. KG, Biberach an der Riss, Germany
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24
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Almeida-Silva M, Cardoso J, Alemão C, Santos S, Monteiro A, Manteigas V, Marques-Ramos A. Impact of Particles on Pulmonary Endothelial Cells. TOXICS 2022; 10:toxics10060312. [PMID: 35736920 PMCID: PMC9227819 DOI: 10.3390/toxics10060312] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 02/04/2023]
Abstract
According to the WHO, air quality affects around 40 million people, contributing to around 21,000 premature deaths per year. Severe respiratory diseases, such as asthma and chronic obstructive pulmonary disorder, can be promoted by air pollution, which has already been documented; this is one of the reasons why air quality is a very relevant factor for human health and well-being. Aerosols are an aggregation of solid or liquid particles dispersed in the air and can be found in the form of dust or fumes. Aerosols can be easily inhaled or absorbed by the skin, which can lead to adverse health effects according to their sizes that range from the nanometre to the millimetre scale. Based on the PRISMA methodology and using the Rayyan QCRI platform, it was possible to assess more than four hundred research articles. This systematic review study aimed to understand the impact of particles on pulmonary endothelial cells, namely particulate matter in different sizes, cigarette smoke, diesel exhaust particles and carbon black. The main conclusions were that particles induce multiple health effects on endothelial cells, namely endothelial dysfunction, which can lead to apoptosis and necrosis, and it may also cause necroptosis in lung structure.
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Affiliation(s)
- Marina Almeida-Silva
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
| | - Jéssica Cardoso
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
| | - Catarina Alemão
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
| | - Sara Santos
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
| | - Ana Monteiro
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
- Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, ao Km 139.7, 2695-066 Bobadela-Loures, Portugal
| | - Vítor Manteigas
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
- Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, ao Km 139.7, 2695-066 Bobadela-Loures, Portugal
| | - Ana Marques-Ramos
- HTRC-Health & Technology Research Center, ESTeSL—Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, 1990-096 Lisbon, Portugal; (M.A.-S.); (J.C.); (C.A.); (S.S.); (A.M.); (V.M.)
- Correspondence: ; Tel.: +351-966087971
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25
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Ryu MH, Afshar T, Li H, Wooding DJ, Orach J, Zhou JS, Murphy S, Lau KS, Schwartz C, Yuen ACY, Rider CF, Carlsten C. Impact of Exposure to Diesel Exhaust on Inflammation Markers and Proteases in Former Smokers with COPD: A Randomized, Double-Blinded, Crossover Study. Am J Respir Crit Care Med 2022; 205:1046-1052. [PMID: 35202552 DOI: 10.1164/rccm.202104-1079oc] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Rationale: There is growing evidence that chronic obstructive pulmonary disease (COPD) can be caused and exacerbated by air pollution exposure. Objectives: Document the impact of short-term air pollution exposure on inflammation markers, proteases, and antiproteases in lower airways of older adults with and without COPD. Methods: Thirty participants (10 ex-smokers with mild-moderate COPD, 20 healthy (9 ex-smokers, 11 never-smokers), average age 60, completed this double-blinded controlled human crossover exposure study. Each participant was exposed to filtered air (control) and diesel exhaust (DE), in washout-separated two hour periods, in a randomly assigned order. Bronchoscopy was performed 24 hours post-exposure to collect lavage. Cell counts were performed on blood and airway samples. Enzyme-linked immunosorbent assays were performed to measure acute inflammatory proteins, matrix proteinases, and anti-proteases in the airway and blood samples. Measurements and Main Results: In former smokers with COPD, but not in the other participants, exposure to DE increased serum amyloid A (1.67 [1.21 to 2.30], p=0.04) and matrix metalloproteinase 10 (2.61 [1.38 to 4.91], p=0.04) in bronchoalveolar lavage. Circulating lymphocytes were increased following DE (0.14 [0.05 to 0.24] cells x 109/L, p=0.03), irrespective of COPD status. Conclusions: A controlled human crossover study of diesel exhaust reveals that former smokers with COPD may be susceptible to an inflammatory response compared to ex-smokers without COPD or never-smoking healthy controls. Clinical trial registration available at www.clinicaltrials.gov, ID: NCT02236039.
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Affiliation(s)
- Min Hyung Ryu
- The University of British Columbia, 8166, Air Pollution Exposure Laboratory, Division of Respiratory Medicine, Department of Medicine, Vancouver, British Columbia, Canada
| | - Tina Afshar
- The University of British Columbia, 8166, Air Pollution Exposure Laboratory, Division of Respiratory Medicine, Department of Medicine, Vancouver, British Columbia, Canada
| | - Hang Li
- Sun Yat-sen University First Affiliated Hospital, 71068, Department of Otolaryngology, Guangzhou, China.,The University of British Columbia, 8166, Air Pollution Exposure Laboratory, Division of Respiratory Medicine, Department of Medicine, Vancouver, British Columbia, Canada
| | - Denise J Wooding
- The University of British Columbia, 8166, Air Pollution Exposure Laboratory, Division of Respiratory Medicine, Department of Medicine, Vancouver, British Columbia, Canada
| | - Juma Orach
- The University of British Columbia, 8166, Air Pollution Exposure Laboratory, Division of Respiratory Medicine, Department of Medicine, Vancouver, British Columbia, Canada
| | - Jin Sheng Zhou
- The University of British Columbia, 8166, Air Pollution Exposure Laboratory, Division of Respiratory Medicine, Department of Medicine, Vancouver, British Columbia, Canada
| | - Shane Murphy
- The University of British Columbia, 8166, Air Pollution Exposure Laboratory, Division of Respiratory Medicine, Department of Medicine, Vancouver, British Columbia, Canada
| | - Kevin Sk Lau
- The University of British Columbia, 8166, Air Pollution Exposure Laboratory, Division of Respiratory Medicine, Department of Medicine, Vancouver, British Columbia, Canada
| | - Carley Schwartz
- UBC, 8166, Air Pollution Exposure Laboratory, Division of Respiratory Medicine, Department of Medicine, Vancouver, British Columbia, Canada
| | - Agnes C Y Yuen
- The University of British Columbia, 8166, Air Pollution Exposure Laboratory, Division of Respiratory Medicine, Department of Medicine, Vancouver, British Columbia, Canada
| | - Christopher F Rider
- The University of British Columbia, 8166, Air Pollution Exposure Laboratory, Division of Respiratory Medicine, Department of Medicine, Vancouver, British Columbia, Canada
| | - Chris Carlsten
- The University of British Columbia, 8166, Air Pollution Exposure Laboratory, Division of Respiratory Medicine, Department of Medicine, Vancouver, British Columbia, Canada;
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26
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Ghosh AK, Soberanes S, Lux E, Shang M, Aillon RP, Eren M, Budinger GRS, Miyata T, Vaughan DE. Pharmacological inhibition of PAI-1 alleviates cardiopulmonary pathologies induced by exposure to air pollutants PM 2.5. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 287:117283. [PMID: 34426376 PMCID: PMC8434953 DOI: 10.1016/j.envpol.2021.117283] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/16/2021] [Accepted: 04/28/2021] [Indexed: 05/09/2023]
Abstract
Numerous studies have established that acute or chronic exposure to environmental pollutants like particulate matter (PM) leads to the development of accelerated aging related pathologies including pulmonary and cardiovascular diseases, and thus air pollution is one of the major global threats to human health. Air pollutant particulate matter 2.5 (PM2.5)-induced cellular dysfunction impairs tissue homeostasis and causes vascular and cardiopulmonary damage. To test a hypothesis that elevated plasminogen activator inhibitor-1 (PAI-1) levels play a pivotal role in air pollutant-induced cardiopulmonary pathologies, we examined the efficacy of a drug-like novel inhibitor of PAI-1, TM5614, in treating PM2.5-induced vascular and cardiopulmonary pathologies. Results from biochemical, histological, and immunohistochemical studies revealed that PM2.5 increases the circulating levels of PAI-1 and thrombin and that TM5614 treatment completely abrogates these effects in plasma. PM2.5 significantly augments the levels of pro-inflammatory cytokine interleukin-6 (IL-6) in bronchoalveolar lavage fluid (BALF), and this also can be reversed by TM5614, indicating its efficacy in amelioration of PM2.5-induced increases in inflammatory and pro-thrombotic factors. TM5614 reduces PM2.5-induced increased levels of inflammatory markers cluster of differentiation 107 b (Mac3) and phospho-signal transducer and activator of transcription-3 (pSTAT3), adhesion molecule vascular cell adhesion molecule 1 (VCAM1), and apoptotic marker cleaved caspase 3. Longer exposure to PM2.5 induces pulmonary and cardiac thrombosis, but TM5614 significantly ameliorates PM2.5-induced vascular thrombosis. TM5614 also reduces PM2.5-induced increased blood pressure and heart weight. In vitro cell culture studies revealed that PM2.5 induces the levels of PAI-1, type I collagen, fibronectin (Millipore), and sterol regulatory element binding protein-1 and 2 (SREBP-1 and SREBP-2), transcription factors that mediate profibrogenic signaling, in cardiac fibroblasts. TM5614 abrogated that stimulation, indicating that it may block PM2.5-induced PAI-1 and profibrogenic signaling through suppression of SREBP-1 and 2. Furthermore, TM5614 blocked PM2.5-mediated suppression of nuclear factor erythroid related factor 2 (Nrf2), a major antioxidant regulator, in cardiac fibroblasts. Pharmacological inhibition of PAI-1 with TM5614 is a promising therapeutic approach to control air pollutant PM2.5-induced cardiopulmonary and vascular pathologies.
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Affiliation(s)
- Asish K Ghosh
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
| | - Saul Soberanes
- Pulmonary and Critical Care Division, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Elizabeth Lux
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Meng Shang
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Raul Piseaux Aillon
- Pulmonary and Critical Care Division, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Mesut Eren
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - G R Scott Budinger
- Pulmonary and Critical Care Division, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Toshio Miyata
- United Centers for Advanced Research and Translational Medicine, Tohoku University, Miyagi, Japan
| | - Douglas E Vaughan
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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27
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Costa-Beber LC, Goettems-Fiorin PB, Dos Santos JB, Friske PT, Heck TG, Hirsch GE, Ludwig MS. Ovariectomy reduces the cardiac cytoprotection in rats exposed to particulate air pollutant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:23395-23404. [PMID: 33443732 DOI: 10.1007/s11356-021-12350-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 01/02/2021] [Indexed: 06/12/2023]
Abstract
Fine particulate matter (PM2.5) has been considered a risk factor for cardiovascular diseases by inducing an oxidative and inflammatory phenotype. Besides, the reduction of 17β-estradiol (E2) levels during menopause is a natural risk for cardiovascular outcomes. During the E2 downfall, there is a high requirement of the 70-kDa heat shock proteins (HSP70), which present essential antioxidant, anti-inflammatory, and anti-senescence roles. We investigated if the ovariectomy, an animal model for menopause, could induce additional effects in cardiac health by impairing oxidative and heat shock response parameters of female rats chronically exposed to residual oil fly ash (ROFA; an inorganic fraction of PM2.5). Thus, ROFA was obtained from São Paulo (Brazil) and solubilized it in saline. Further, female Wistar rats were exposed to 50 μL of saline (control group) or ROFA solution (250 μg) (polluted) by intranasal instillation, 5 days/week, 12 weeks. At the 12th week, animals were subdivided into four groups (n = 6 p/group): control, OVX, polluted, and polluted + OVX. Control and polluted were submitted to false surgery, while OVX and polluted + OVX were ovariectomized. ROFA or saline exposure continued for 12 weeks. Ovariectomy reduced the cardiac catalase activity and iHSP70 expression in female rats exposed to ROFA. Neither plasma eHSP72 levels nor H-index (eHSP72 to cardiac iHSP70 ratio) was affected. In conclusion, ovariectomy reduces the cardiac cytoprotection and antioxidant defense, and enhances the susceptibility to premature cellular senescence in rats exposed to ROFA.
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Affiliation(s)
- Lílian Corrêa Costa-Beber
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil.
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil.
| | - Pauline Brendler Goettems-Fiorin
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil
- Atmospheric Pollution Laboratory, Postgraduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rua Sarmento Leite 245, Porto Alegre, RS, Brazil
| | - Jaíne Borges Dos Santos
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil
| | - Paula Taís Friske
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil
| | - Thiago Gomes Heck
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
- Medicine Course, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUÍ), Ijuí, RS, Brazil
| | - Gabriela Elisa Hirsch
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
| | - Mirna Stela Ludwig
- Research Group in Physiology, Department of Life Sciences, Postgraduate Program in Integral Attention to Health, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000, Bairro Universitário, Ijuí, RS, 98700-000, Brazil
- Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
- Medicine Course, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUÍ), Ijuí, RS, Brazil
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Wang YW, Wu YH, Zhang JZ, Tang JH, Fan RP, Li F, Yu BY, Kou JP, Zhang YY. Ruscogenin attenuates particulate matter-induced acute lung injury in mice via protecting pulmonary endothelial barrier and inhibiting TLR4 signaling pathway. Acta Pharmacol Sin 2021; 42:726-734. [PMID: 32855531 PMCID: PMC8114925 DOI: 10.1038/s41401-020-00502-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 07/31/2020] [Indexed: 12/15/2022] Open
Abstract
The inhalation of particulate matter (PM) is closely related to respiratory damage, including acute lung injury (ALI), characterized by inflammatory fluid edema and disturbed alveolar-capillary permeability. Ruscogenin (RUS), the main active ingredient in the traditional Chinese medicine Ophiopogonis japonicus, has been found to exhibit anti-inflammatory activity and rescue LPS-induced ALI. In this study, we investigated whether and how RUS exerted therapeutic effects on PM-induced ALI. RUS (0.1, 0.3, 1 mg·kg-1·d-1) was orally administered to mice prior to or after intratracheal instillation of PM suspension (50 mg/kg). We showed that RUS administration either prior to or after PM challenge significantly attenuated PM-induced pathological injury, lung edema, vascular leakage and VE-cadherin expression in lung tissue. RUS administration significantly decreased the levels of cytokines IL-6 and IL-1β, as well as the levels of NO and MPO in both bronchoalveolar lavage fluid (BALF) and serum. RUS administration dose-dependently suppressed the phosphorylation of NF-κB p65 and the expression of TLR4 and MyD88 in lung tissue. Furthermore, TLR4 knockout partly diminished PM-induced lung injury, and abolished the protective effects of RUS in PM-instilled mice. In conclusion, RUS effectively alleviates PM-induced ALI probably by inhibition of vascular leakage and TLR4/MyD88 signaling. TLR4 might be crucial for PM to initiate pulmonary lesion and for RUS to exert efficacy against PM-induced lung injury.
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Affiliation(s)
- Yu-Wei Wang
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yun-Hao Wu
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Jia-Zhi Zhang
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Jia-Hui Tang
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Rui-Ping Fan
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Fang Li
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Bo-Yang Yu
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Jun-Ping Kou
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
| | - Yuan-Yuan Zhang
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Pharmacology of Chinese Material Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
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Uhl B, Braun C, Dominik J, Luft J, Canis M, Reichel CA. A Novel Experimental Approach for In Vivo Analyses of the Salivary Gland Microvasculature. Front Immunol 2021; 11:604470. [PMID: 33679695 PMCID: PMC7925411 DOI: 10.3389/fimmu.2020.604470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 12/21/2020] [Indexed: 12/28/2022] Open
Abstract
Microvascular dysfunction plays a fundamental role in the pathogenesis of salivary gland disorders. Restoring and preserving microvascular integrity might therefore represent a promising strategy for the treatment of these pathologies. The mechanisms underlying microvascular dysfunction in salivary glands, however, are still obscure, partly due to the unavailability of adequate in vivo models. Here, we present a novel experimental approach that allows comprehensive in vivo analyses of the salivary gland microvasculature in mice. For this purpose, we employed different microscopy techniques including multi-photon in vivo microscopy to quantitatively analyze interactions of distinct immune cell subsets in the submandibular gland microvasculature required for their infiltration into the surrounding parenchyma and their effects on microvascular function. Confocal microscopy and multi-channel flow cytometry in tissue sections/homogenates complemented these real-time analyses by determining the molecular phenotype of the participating cells. To this end, we identified key adhesion and signaling molecules that regulate the subset- and tissue-specific trafficking of leukocytes into inflamed glands and control the associated microvascular leakage. Hence, we established an experimental approach that allows in vivo analyses of microvascular processes in healthy and diseased salivary glands. This enables us to delineate distinct pathogenetic factors as novel therapeutic targets in salivary gland diseases.
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Affiliation(s)
- Bernd Uhl
- Department of Otorhinolaryngology—Head and Neck Surgery, Ludwig-Maximilians-Universität München, Munich, Germany
- Walter Brendel Centre for Experimental Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Constanze Braun
- Walter Brendel Centre for Experimental Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Julian Dominik
- Walter Brendel Centre for Experimental Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Joshua Luft
- Walter Brendel Centre for Experimental Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Martin Canis
- Department of Otorhinolaryngology—Head and Neck Surgery, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Christoph A. Reichel
- Department of Otorhinolaryngology—Head and Neck Surgery, Ludwig-Maximilians-Universität München, Munich, Germany
- Walter Brendel Centre for Experimental Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
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Costa-Beber LC, Goettems-Fiorin PB, Dos Santos JB, Friske PT, Frizzo MN, Heck TG, Hirsch GE, Ludwig MS. Ovariectomy enhances female rats' susceptibility to metabolic, oxidative, and heat shock response effects induced by a high-fat diet and fine particulate matter. Exp Gerontol 2020; 145:111215. [PMID: 33340683 DOI: 10.1016/j.exger.2020.111215] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 11/20/2020] [Accepted: 12/12/2020] [Indexed: 01/21/2023]
Abstract
Obesity and exposure to fine particulate matter (air pollutant PM2.5) are important risk factors for metabolic and cardiovascular diseases. They are also related to early menopause. The reduction of 17β-estradiol (E2) levels during female climacteric, marked by menopause, is of significant concern because of its imminent influence on metabolism, redox and inflammatory status. This complex homeostasis-threatening scenario may induce a heat shock response (HSR) in cells, enhancing the expression of the 70 kDa heat shock protein (HSP70). A failure in this mechanism could predispose women to cardiovascular diseases. In this study, we evaluated if the climacteric could represent an additional risk among obese rats exposed to PM2.5 by worsening lipid, oxidative, and inflammatory parameters and HSP70 in cardiac tissue. We induced obesity in female Wistar rats using a high-fat diet (HFD) (58.3% as fats) and exposed them to 50 μL of saline 0.9% (control, n = 15) or 250 μg residual oil fly ash (ROFA, the inorganic portion of PM2.5) (polluted, n = 15) by intranasal instillation, 5 days/w for 12 weeks. At the 12th week, we subdivided these animals into four groups: control (n = 6), OVX (n = 9), polluted (n = 6) and polluted + OVX (n = 9). OVX and polluted + OVX were submitted to a bilateral ovariectomy (OVX), a surgical model for menopause, while control and polluted received a false surgery (sham). ROFA exposure and HFD consumption were continued for 12 additional weeks, after which the animals were euthanized. ROFA enhanced the susceptibility to ovariectomy-induced dyslipidemia, while ovariectomy predisposed female rats to the ROFA-induced decrease of cardiac iHSP70 expression. Ovariectomy also decreased the IL-6 levels and IL-6/IL-10 in obese animals, reinforcing a metabolic impairment and a failure to respond to unfavorable conditions. Our results support the hypothesis that obese ovariectomized animals are predisposed to a metabolic worsening under polluted conditions and are at higher risk of cardiovascular diseases.
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Affiliation(s)
- Lílian Corrêa Costa-Beber
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil; Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil.
| | - Pauline Brendler Goettems-Fiorin
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil; Atmospheric Pollution Laboratory, Postgraduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rua Sarmento Leite, 245 Porto Alegre, RS, Brazil
| | - Jaíne Borges Dos Santos
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil
| | - Paula Taís Friske
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil
| | - Matias Nunes Frizzo
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil; Atmospheric Pollution Laboratory, Postgraduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre (UFCSPA), Rua Sarmento Leite, 245 Porto Alegre, RS, Brazil; Medicine Course, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUÍ), Ijuí, RS, Brazil
| | - Thiago Gomes Heck
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil; Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil; Medicine Course, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUÍ), Ijuí, RS, Brazil
| | - Gabriela Elisa Hirsch
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil; Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil
| | - Mirna Stela Ludwig
- Research Group in Physiology, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUI), Rua do Comércio, 3000 - Bairro Universitário, Ijuí, RS, Brazil; Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUÍ/UNICRUZ), Ijuí, RS, Brazil; Medicine Course, Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUÍ), Ijuí, RS, Brazil
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31
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Alkoussa S, Hulo S, Courcot D, Billet S, Martin PJ. Extracellular vesicles as actors in the air pollution related cardiopulmonary diseases. Crit Rev Toxicol 2020; 50:402-423. [DOI: 10.1080/10408444.2020.1763252] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Stéphanie Alkoussa
- Unit of Environmental Chemistry and Interactions with Life, UCEIV EA4492, SFR Condorcet FR CNRS, University of Littoral Côte d’Opale, Dunkerque, France
| | - Sébastien Hulo
- IMPact of Environmental ChemicalS on Human Health, ULR 4483 - IMPECS, Univ. Lille, CHU Lille, Institut Pasteur de Lille, Lille, France
- Department of Occupational Health, Lille University Hospital, Lille, France
| | - Dominique Courcot
- Unit of Environmental Chemistry and Interactions with Life, UCEIV EA4492, SFR Condorcet FR CNRS, University of Littoral Côte d’Opale, Dunkerque, France
| | - Sylvain Billet
- Unit of Environmental Chemistry and Interactions with Life, UCEIV EA4492, SFR Condorcet FR CNRS, University of Littoral Côte d’Opale, Dunkerque, France
| | - Perrine J. Martin
- Unit of Environmental Chemistry and Interactions with Life, UCEIV EA4492, SFR Condorcet FR CNRS, University of Littoral Côte d’Opale, Dunkerque, France
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32
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ALIX increases protein content and protective function of iPSC-derived exosomes. J Mol Med (Berl) 2019; 97:829-844. [DOI: 10.1007/s00109-019-01767-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 02/11/2019] [Accepted: 03/05/2019] [Indexed: 02/07/2023]
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33
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Cui A, Xiang M, Xu M, Lu P, Wang S, Zou Y, Qiao K, Jin C, Li Y, Lu M, Chen AF, Chen S. VCAM-1-mediated neutrophil infiltration exacerbates ambient fine particle-induced lung injury. Toxicol Lett 2019; 302:60-74. [DOI: 10.1016/j.toxlet.2018.11.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 10/19/2018] [Accepted: 11/06/2018] [Indexed: 01/13/2023]
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