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Alewel DI, Kodavanti UP. Neuroendocrine contribution to sex-related variations in adverse air pollution health effects. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2024; 27:287-314. [PMID: 39075643 DOI: 10.1080/10937404.2024.2383637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
Air pollution exposure is ranked as a leading environmental risk factor for not only cardiopulmonary diseases but also for systemic health ailments including diabetes, reproductive abnormalities, and neuropsychiatric disorders, likely mediated by central neural stress mechanisms. Current experimental evidence links many air pollution health outcomes with activation of neuroendocrine sympathetic-adrenal-medullary and hypothalamic-pituitary-adrenal (HPA) stress axes associated with resultant increases in adrenal-derived hormone levels acting as circulating mediators of multi-organ stress reactions. Epidemiological and experimental investigations also demonstrated sex-specific responses to air pollutant inhalation, which may be attributed to hormonal interactions within the stress and reproductive axes. Sex hormones (androgens and estrogens) interact with neuroendocrine functions to influence hypothalamic responses, subsequently augmenting stress-mediated metabolic and immune changes. These neurohormonal interactions may contribute to innate sex-specific responses to inhaled irritants, inducing differing individual susceptibility. The aim of this review was to: (1) examine neuroendocrine co-regulation of the HPA axis by gonadal hormones, (2) provide experimental evidence demonstrating sex-specific respiratory and systemic effects attributed to air pollutant inhalation exposure, and (3) postulate proposed mechanisms of stress and sex hormone interactions during air pollution-related stress.
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Affiliation(s)
- Devin I Alewel
- Oak Ridge Institute for Science and Education Research Participation Program, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Urmila P Kodavanti
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
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Smith LC, Abramova E, Vayas K, Rodriguez J, Gelfand-Titiyevksiy B, Roepke TA, Laskin JD, Gow AJ, Laskin DL. Transcriptional profiling of lung macrophages following ozone exposure in mice identifies signaling pathways regulating immunometabolic activation. Toxicol Sci 2024; 201:103-117. [PMID: 38897669 PMCID: PMC11347782 DOI: 10.1093/toxsci/kfae081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024] Open
Abstract
Macrophages play a key role in ozone-induced lung injury by regulating both the initiation and resolution of inflammation. These distinct activities are mediated by pro-inflammatory and anti-inflammatory/proresolution macrophages which sequentially accumulate in injured tissues. Macrophage activation is dependent, in part, on intracellular metabolism. Herein, we used RNA-sequencing (seq) to identify signaling pathways regulating macrophage immunometabolic activity following exposure of mice to ozone (0.8 ppm, 3 h) or air control. Analysis of lung macrophages using an Agilent Seahorse showed that inhalation of ozone increased macrophage glycolytic activity and oxidative phosphorylation at 24 and 72 h post-exposure. An increase in the percentage of macrophages in S phase of the cell cycle was observed 24 h post ozone. RNA-seq revealed significant enrichment of pathways involved in innate immune signaling and cytokine production among differentially expressed genes at both 24 and 72 h after ozone, whereas pathways involved in cell cycle regulation were upregulated at 24 h and intracellular metabolism at 72 h. An interaction network analysis identified tumor suppressor 53 (TP53), E2F family of transcription factors (E2Fs), cyclin-dependent kinase inhibitor 1A (CDKN1a/p21), and cyclin D1 (CCND1) as upstream regulators of cell cycle pathways at 24 h and TP53, nuclear receptor subfamily 4 group a member 1 (NR4A1/Nur77), and estrogen receptor alpha (ESR1/ERα) as central upstream regulators of mitochondrial respiration pathways at 72 h. To assess whether ERα regulates metabolic activity, we used ERα-/- mice. In both air and ozone-exposed mice, loss of ERα resulted in increases in glycolytic capacity and glycolytic reserve in lung macrophages with no effect on mitochondrial oxidative phosphorylation. Taken together, these results highlight the complex interaction between cell cycle, intracellular metabolism, and macrophage activation which may be important in the initiation and resolution of inflammation following ozone exposure.
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Affiliation(s)
- Ley Cody Smith
- Department of Pharmaceutical Sciences, University of Connecticut School of Pharmacy, Storrs, CT 06269, United States
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States
| | - Elena Abramova
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States
| | - Kinal Vayas
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States
| | - Jessica Rodriguez
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States
| | - Benjamin Gelfand-Titiyevksiy
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States
| | - Troy A Roepke
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers University, New Brunswick, NJ 08901, United States
| | - Jeffrey D Laskin
- Department of Environmental and Occupational Health and Justice, School of Public Health, Rutgers University, Piscataway, NJ 08854, United States
| | - Andrew J Gow
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States
| | - Debra L Laskin
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States
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Radbel J, Meshanni JA, Vayas KN, Le-Hoang O, Abramova E, Zhou P, Joseph LB, Laskin JD, Gow AJ, Laskin DL. Effects of ozone exposure on lung injury, inflammation, and oxidative stress in a murine model of nonpneumonic endotoxemia. Toxicol Sci 2024; 200:299-311. [PMID: 38749002 DOI: 10.1093/toxsci/kfae062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024] Open
Abstract
Recent studies have identified exposure to environmental levels of ozone as a risk factor for the development of acute respiratory distress syndrome (ARDS), a severe form of acute lung injury (ALI) that can develop in humans with sepsis. The aim of this study was to develop a murine model of ALI to mechanistically explore the impact of ozone exposure on ARDS development. Mice were exposed to ozone (0.8 ppm, 3 h) or air control followed 24 h later by intravenous administration of 3 mg/kg lipopolysaccharide (LPS) or PBS. Exposure of mice to ozone + LPS caused alveolar hyperplasia; increased BAL levels of albumin, IgM, phospholipids, and proinflammatory mediators including surfactant protein D and soluble receptor for advanced glycation end products were also detected in BAL, along with markers of oxidative and nitrosative stress. Administration of ozone + LPS resulted in an increase in neutrophils and anti-inflammatory macrophages in the lung, with no effects on proinflammatory macrophages. Conversely, the numbers of resident alveolar macrophages decreased after ozone + LPS; however, expression of Nos2, Arg1, Cxcl1, Cxcl2, Ccl2 by these cells increased, indicating that they are activated. These findings demonstrate that ozone sensitizes the lung to respond to endotoxin, resulting in ALI, oxidative stress, and exacerbated pulmonary inflammation, and provide support for the epidemiologic association between ozone exposure and ARDS incidence.
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Affiliation(s)
- Jared Radbel
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey 08901, USA
| | - Jaclynn A Meshanni
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Kinal N Vayas
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Oahn Le-Hoang
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey 08901, USA
| | - Elena Abramova
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Peihong Zhou
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Laurie B Joseph
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Jeffrey D Laskin
- Department of Environmental and Occupational Health and Justice, School of Public Health, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Andrew J Gow
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Debra L Laskin
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
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Sharma S, Rousselle D, Parker E, Ekpruke CD, Alford R, Babayev M, Commodore S, Silveyra P. Sensitivity of Mouse Lung Nuclear Receptors to Electronic Cigarette Aerosols and Influence of Sex Differences: A Pilot Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:810. [PMID: 38929056 PMCID: PMC11203813 DOI: 10.3390/ijerph21060810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/07/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024]
Abstract
The emerging concern about chemicals in electronic cigarettes, even those without nicotine, demands the development of advanced criteria for their exposure and risk assessment. This study aims to highlight the sensitivity of lung nuclear receptors (NRs) to electronic cigarette e-liquids, independent of nicotine presence, and the influence of the sex variable on these effects. Adult male and female C57BL/6J mice were exposed to electronic cigarettes with 0%, 3%, and 6% nicotine daily (70 mL, 3.3 s, 1 puff per min/30 min) for 14 days, using the inExpose full body chamber (SCIREQ). Following exposure, lung tissues were harvested, and RNA extracted. The expression of 84 NRs was determined using the RT2 profiler mRNA array (Qiagen). Results exhibit a high sensitivity to e-liquid exposure irrespective of the presence of nicotine, with differential expression of NRs, including one (females) and twenty-four (males) in 0% nicotine groups compared to non-exposed control mice. However, nicotine-dependent results were also significant with seven NRs (females), fifty-three NRs (males) in 3% and twenty-three NRs (female) twenty-nine NRs (male) in 6% nicotine groups, compared to 0% nicotine mice. Sex-specific changes were significant, but sex-related differences were not observed. The study provides a strong rationale for further investigation.
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Affiliation(s)
- Shikha Sharma
- Department of Environmental and Occupational Health, School of Public Health, Indiana University, Bloomington, IN 47405, USA; (S.S.); (D.R.); (R.A.); (M.B.); (S.C.)
| | - Dustin Rousselle
- Department of Environmental and Occupational Health, School of Public Health, Indiana University, Bloomington, IN 47405, USA; (S.S.); (D.R.); (R.A.); (M.B.); (S.C.)
| | - Erik Parker
- Biostatistics Consulting Center, Department of Epidemiology and Biostatistics, School of Public Health, Indiana University, Bloomington, IN 47405, USA;
| | - Carolyn Damilola Ekpruke
- Department of Environmental and Occupational Health, School of Public Health, Indiana University, Bloomington, IN 47405, USA; (S.S.); (D.R.); (R.A.); (M.B.); (S.C.)
| | - Rachel Alford
- Department of Environmental and Occupational Health, School of Public Health, Indiana University, Bloomington, IN 47405, USA; (S.S.); (D.R.); (R.A.); (M.B.); (S.C.)
| | - Maksat Babayev
- Department of Environmental and Occupational Health, School of Public Health, Indiana University, Bloomington, IN 47405, USA; (S.S.); (D.R.); (R.A.); (M.B.); (S.C.)
| | - Sarah Commodore
- Department of Environmental and Occupational Health, School of Public Health, Indiana University, Bloomington, IN 47405, USA; (S.S.); (D.R.); (R.A.); (M.B.); (S.C.)
| | - Patricia Silveyra
- Department of Environmental and Occupational Health, School of Public Health, Indiana University, Bloomington, IN 47405, USA; (S.S.); (D.R.); (R.A.); (M.B.); (S.C.)
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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Li J, Deng Z, Soerensen SJC, Kachuri L, Cardenas A, Graff RE, Leppert JT, Langston ME, Chung BI. Ambient air pollution and urological cancer risk: A systematic review and meta-analysis of epidemiological evidence. Nat Commun 2024; 15:5116. [PMID: 38879581 PMCID: PMC11180144 DOI: 10.1038/s41467-024-48857-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 05/13/2024] [Indexed: 06/19/2024] Open
Abstract
Exposure to ambient air pollution has significant adverse health effects; however, whether air pollution is associated with urological cancer is largely unknown. We conduct a systematic review and meta-analysis with epidemiological studies, showing that a 5 μg/m3 increase in PM2.5 exposure is associated with a 6%, 7%, and 9%, increased risk of overall urological, bladder, and kidney cancer, respectively; and a 10 μg/m3 increase in NO2 is linked to a 3%, 4%, and 4% higher risk of overall urological, bladder, and prostate cancer, respectively. Were these associations to reflect causal relationships, lowering PM2.5 levels to 5.8 μg/m3 could reduce the age-standardized rate of urological cancer by 1.5 ~ 27/100,000 across the 15 countries with the highest PM2.5 level from the top 30 countries with the highest urological cancer burden. Implementing global health policies that can improve air quality could potentially reduce the risk of urologic cancer and alleviate its burden.
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Affiliation(s)
- Jinhui Li
- Department of Urology, Stanford University Medical Center, Stanford, CA, USA.
| | - Zhengyi Deng
- Department of Urology, Stanford University Medical Center, Stanford, CA, USA
| | - Simon John Christoph Soerensen
- Department of Urology, Stanford University Medical Center, Stanford, CA, USA
- Department of Epidemiology & Population Health, Stanford University School of Medicine, Stanford, CA, USA
| | - Linda Kachuri
- Department of Epidemiology & Population Health, Stanford University School of Medicine, Stanford, CA, USA
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Andres Cardenas
- Department of Epidemiology & Population Health, Stanford University School of Medicine, Stanford, CA, USA
| | - Rebecca E Graff
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA
| | - John T Leppert
- Department of Urology, Stanford University Medical Center, Stanford, CA, USA
- Division of Nephrology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Division of Urology, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Marvin E Langston
- Department of Epidemiology & Population Health, Stanford University School of Medicine, Stanford, CA, USA
| | - Benjamin I Chung
- Department of Urology, Stanford University Medical Center, Stanford, CA, USA
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Wardhani K, Yazzie S, McVeigh C, Edeh O, Grimes M, Jacquez Q, Dixson C, Barr E, Liu R, Bolt AM, Feng C, Zychowski KE. Systemic immunological responses are dependent on sex and ovarian hormone presence following acute inhaled woodsmoke exposure. Part Fibre Toxicol 2024; 21:27. [PMID: 38797836 PMCID: PMC11129474 DOI: 10.1186/s12989-024-00587-5] [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: 12/01/2023] [Accepted: 05/17/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Rural regions of the western United States have experienced a noticeable surge in both the frequency and severity of acute wildfire events, which brings significant challenges to both public safety and environmental conservation efforts, with impacts felt globally. Identifying factors contributing to immune dysfunction, including endocrinological phenotypes, is essential to understanding how hormones may influence toxicological susceptibility. METHODS This exploratory study utilized male and female C57BL/6 mice as in vivo models to investigate distinct responses to acute woodsmoke (WS) exposure with a focus on sex-based differences. In a second set of investigations, two groups were established within the female mouse cohort. In one group, mice experienced ovariectomy (OVX) to simulate an ovarian hormone-deficient state similar to surgical menopause, while the other group received Sham surgery as controls, to investigate the mechanistic role of ovarian hormone presence in driving immune dysregulation following acute WS exposure. Each experimental cohort followed a consecutive 2-day protocol with daily 4-h exposure intervals under two conditions: control HEPA-filtered air (FA) and acute WS to simulate an acute wildfire episode. RESULTS Metals analysis of WS particulate matter (PM) revealed significantly increased levels of 63Cu, 182W, 208Pb, and 238U, compared to filtered air (FA) controls, providing insights into the specific metal components most impacted by the changing dynamics of wildfire occurrences in the region. Male and female mice exhibited diverse patterns in lung mRNA cytokine expression following WS exposure, with males showing downregulation and females displaying upregulation, notably for IL-1β, TNF-α, CXCL-1, CCL-5, TGF-β, and IL-6. After acute WS exposure, there were notable differences in the responses of macrophages, neutrophils, and bronchoalveolar lavage (BAL) cytokines IL-10, IL-6, IL-1β, and TNF-α. Significant diverse alterations were observed in BAL cytokines, specifically IL-1β, IL-10, IL-6, and TNF-α, as well as in the populations of immune cells, such as macrophages and polymorphonuclear leukocytes, in both Sham and OVX mice, following acute WS exposure. These findings elucidated the profound influence of hormonal changes on inflammatory outcomes, delineating substantial sex-related differences in immune activation and revealing altered immune responses in OVX mice due to ovarian hormone deficiency. In addition, the flow cytometry analysis highlighted the complex interaction between OVX surgery, acute WS exposure, and their collective impact on immune cell populations within the hematopoietic bone marrow niche. CONCLUSIONS In summary, both male and female mice, alongside females subjected to OVX and those who had sham surgery, exhibit significant variations in the expression of proinflammatory cytokines, chemokines, lung mRNA gene expression, and related functional networks linked to signaling pathways. These differences potentially act as mediators of sex-specific and hormonal influences in the systemic inflammatory response to acute WS exposure during a wildfire event. Understanding the regulatory roles of genes expressed differentially under environmental stressors holds considerable implications, aiding in identifying sex-specific therapeutic targets for addressing acute lung inflammation and injury.
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Affiliation(s)
- Kartika Wardhani
- College of Nursing, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
- Biochemistry and Biotechnology Group (B-TEK), Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Sydnee Yazzie
- College of Nursing, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Charlotte McVeigh
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Onamma Edeh
- College of Nursing, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Martha Grimes
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Quiteria Jacquez
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Connor Dixson
- College of Nursing, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Edward Barr
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Rui Liu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Alicia M Bolt
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Changjian Feng
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA
| | - Katherine E Zychowski
- College of Nursing, University of New Mexico-Health Sciences Center, Albuquerque, New Mexico, USA.
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Lin Y, Wang X, Chen R, Weil T, Ge Y, Stapleton HM, Bergin MH, Zhang J(J. Arachidonic Acid Metabolites in Self-collected Biospecimens Following Campfire Exposure: Exploring Non-invasive Biomarkers of Wildfire Health Effects. ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 2024; 11:201-207. [PMID: 38828437 PMCID: PMC11144521 DOI: 10.1021/acs.estlett.3c00923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Climate change has contributed to increased frequency and intensity of wildfire. Studying its acute effects is limited due to unpredictable nature of wildfire occurrence, which necessitates readily deployable techniques to collect biospecimens. To identify biomarkers of wildfire's acute effects, we conducted this exploratory study in eight healthy campers (four men and four women) who self-collected nasal fluid, urine, saliva, and skin wipes at different time points before, during, and after 4-hour exposure to wood smoke in a camping event. Concentrations of black carbon in the air and polycyclic aromatic hydrocarbons in participants' silicone wristbands were significantly elevated during the exposure session. Among 30 arachidonic acid metabolites measured, lipoxygenase metabolites were more abundant in nasal fluid and saliva, whereas cyclooxygenase and non-enzymatic metabolites were more abundant in urine. We observed drastic increases, at 8 hours following the exposure, in urinary levels of PGE2 (398%) and 15-keto-PGF2α (191%) (FDR<10%), with greater increases in men (FDR < 0.01%) than in women. No significant changes were observed for other metabolites in urine or the other biospecimens. Our results suggest urinary PGE2 and 15-keto-PGF2α as promising biomarkers reflecting pathophysiologic (likely sex-dependent) changes induced by short-term exposure to wildfire.
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Affiliation(s)
- Yan Lin
- Duke Global Health Institute, Duke University, Durham, NC, 27710, United States
- Nicholas School of the Environment, Duke University, Durham, NC, 27710, United States
| | - Xiangtian Wang
- Nicholas School of the Environment, Duke University, Durham, NC, 27710, United States
| | - Ruoxue Chen
- Nicholas School of the Environment, Duke University, Durham, NC, 27710, United States
| | - Tenley Weil
- Nicholas School of the Environment, Duke University, Durham, NC, 27710, United States
| | - Yihui Ge
- Nicholas School of the Environment, Duke University, Durham, NC, 27710, United States
| | - Heather M. Stapleton
- Nicholas School of the Environment, Duke University, Durham, NC, 27710, United States
| | - Michael H. Bergin
- Duke Global Health Institute, Duke University, Durham, NC, 27710, United States
- Department of Civil and Environmental Engineering, Pratt School of Engineering, Duke University, Durham, NC, 27710, United States
| | - Junfeng (Jim) Zhang
- Duke Global Health Institute, Duke University, Durham, NC, 27710, United States
- Nicholas School of the Environment, Duke University, Durham, NC, 27710, United States
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Feng S, Yang L, Dou S, Li X, Wen S, Yan L, Huang W, Zhang Y, Ma B, Yuan L, Li S, Lu P, Guo Y. Associations between long-term ozone exposure and small airways function in Chinese young adults: a longitudinal cohort study. Respir Res 2024; 25:105. [PMID: 38419020 PMCID: PMC10902944 DOI: 10.1186/s12931-024-02679-4] [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: 07/24/2023] [Accepted: 01/03/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND Increasing evidence is appearing that ozone has adverse effects on health. However, the association between long-term ozone exposure and lung function is still inconclusive. OBJECTIVES To investigate the associations between long-term exposure to ozone and lung function in Chinese young adults. METHODS We conducted a prospective cohort study among 1594 college students with a mean age of 19.2 years at baseline in Shandong, China from September 2020 to September 2021. Lung function indicators were measured in September 2020 and September 2021, including forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), forced expiratory flow at the 25th, 50th, and 75th percentile of the FVC (FEF25, FEF50, and FEF75) and mean flow rate between 25% and 75% of the FVC (FEF25-75) were measured. Daily 10 km×10 km ozone concentrations come from a well-validated data-fusion approach. The time-weighted average concentrations in 12 months before the lung function test were defined as the long-term ozone exposure. The associations between long-term ozone exposure and lung function indicators in Chinese young adults were investigated using a linear mixed effects model, followed by stratified analyses regarding sex, BMI and history of respiratory diseases. RESULTS Each interquartile range (IQR) (8.9 µg/m3) increase in long-term ozone exposure were associated with a -204.3 (95% confidence interval (CI): -361.6, -47.0) ml/s, -146.3 (95% CI: -264.1, -28.4) ml/s, and - 132.8 (95% CI: -239.2, -26.4) ml/s change in FEF25, FEF50, and FEF25-75, respectively. Stronger adverse associations were found in female participants or those with BMI ≥ 24 kg/m2 and history of respiratory diseases. CONCLUSION Long-term exposure to ambient ozone is associated with impaired small airway indicators in Chinese young adults. Females, participants with BMI ≥ 24 kg/m2 and a history of respiratory disease have stronger associations.
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Affiliation(s)
- Shurong Feng
- School of Public Health, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, China
| | - Liu Yang
- School of Public Health, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, China
| | - Siqi Dou
- School of Public Health, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, China
| | - Xinyuan Li
- School of Public Health, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, China
| | - Shuo Wen
- School of Public Health, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, China
| | - Lailai Yan
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, China
| | - Wenzhong Huang
- Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Level 2, 553 St Kilda Road, Melbourne, VIC, 3004, Australia
| | - Yiwen Zhang
- Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Level 2, 553 St Kilda Road, Melbourne, VIC, 3004, Australia
| | - Bin Ma
- School of Public Health, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, China
| | - Linghong Yuan
- School of Public Health, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, China
| | - Shanshan Li
- Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Level 2, 553 St Kilda Road, Melbourne, VIC, 3004, Australia
| | - Peng Lu
- School of Public Health, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, China.
| | - Yuming Guo
- School of Public Health, Binzhou Medical University, 346 Guanhai Road, Yantai, 264003, Shandong, China.
- Climate, Air Quality Research Unit, School of Public Health and Preventive Medicine, Monash University, Level 2, 553 St Kilda Road, Melbourne, VIC, 3004, Australia.
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Commodore S, Ekpruke CD, Rousselle D, Alford R, Babayev M, Sharma S, Buechlein A, Rusch DB, Silveyra P. Lung proinflammatory microRNA and cytokine expression in a mouse model of allergic inflammation: role of sex chromosome complement and gonadal hormones. Physiol Genomics 2024; 56:179-193. [PMID: 38047312 PMCID: PMC11281810 DOI: 10.1152/physiolgenomics.00049.2023] [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: 06/01/2023] [Revised: 10/13/2023] [Accepted: 11/30/2023] [Indexed: 12/05/2023] Open
Abstract
Epigenetic alterations such as dysregulation of miRNAs have been reported to play important roles in interactions between genetic and environmental factors. In this study, we tested the hypothesis that induction of lung inflammation by inhaled allergens triggers a sex-specific miRNA regulation that is dependent on chromosome complement and hormonal milieu. We challenged the four core genotypes (FCGs) model through intranasal sensitization with a house dust mite (HDM) solution (or PBS as a control) for 5 wk. The FCG model allows four combinations of gonads and sex chromosomes: 1) XX mice with ovaries (XXF), 2) XY mice with testes (XYM), 3) XX mice with testes (XXM), and 4) XY mice with ovaries (XYF). Following the challenge (n = 5-7/group), we assessed the expression of 84 inflammatory miRNAs in lung tissue using a PCR array and cytokine levels in bronchoalveolar lavage fluid (BAL) by a multiplex protein assay (n = 4-7 animals/group). Our results showed higher levels of the chemokine KC (an Il-8 homolog) and IL-7 in BAL from XYF mice challenged with HDM. In addition, IL-17A was significantly higher in BAL from both XXF and XYF mice. A three-way interaction among treatment, gonads, and sex chromosome revealed 60 of 64 miRNAs that differed in expression depending on genotype; XXF, XXM, XYF, and XYM mice had 45, 32, 4, and 52 differentially expressed miRNAs, respectively. Regulatory networks of miRNAs identified in this study were implicated in pathways associated with asthma. Female gonadal hormonal effects may alter miRNA expression and contribute to the higher susceptibility of females to asthma.NEW & NOTEWORTHY miRNAs play important roles in regulating gene and environmental interactions. However, their role in mediating sex differences in allergic responses and lung diseases has not been elucidated. Our study used a targeted omics approach to characterize the contributions of gonadal hormones and chromosomal components to lung responses to an allergen challenge. Our results point to the influence of sex hormones in miRNA expression and proinflammatory markers in allergic airway inflammation.
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Affiliation(s)
- Sarah Commodore
- Department of Environmental and Occupational Health, School of Public Health, Indiana University Bloomington, Bloomington, Indiana, United States
| | - Carolyn Damilola Ekpruke
- Department of Environmental and Occupational Health, School of Public Health, Indiana University Bloomington, Bloomington, Indiana, United States
| | - Dustin Rousselle
- Department of Environmental and Occupational Health, School of Public Health, Indiana University Bloomington, Bloomington, Indiana, United States
| | - Rachel Alford
- Department of Environmental and Occupational Health, School of Public Health, Indiana University Bloomington, Bloomington, Indiana, United States
| | - Maksat Babayev
- Department of Environmental and Occupational Health, School of Public Health, Indiana University Bloomington, Bloomington, Indiana, United States
| | - Shikha Sharma
- Department of Environmental and Occupational Health, School of Public Health, Indiana University Bloomington, Bloomington, Indiana, United States
| | - Aaron Buechlein
- Center for Genomics and Bioinformatics, Indiana University, Bloomington, Indiana, United States
| | - Douglas B Rusch
- Center for Genomics and Bioinformatics, Indiana University, Bloomington, Indiana, United States
| | - Patricia Silveyra
- Department of Environmental and Occupational Health, School of Public Health, Indiana University Bloomington, Bloomington, Indiana, United States
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10
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Xu R, Sun H, Zhong Z, Zheng Y, Liu T, Li Y, Liu L, Luo L, Wang S, Lv Z, Huang S, Shi C, Chen W, Wei J, Xia W, Liu Y. Ozone, Heat Wave, and Cardiovascular Disease Mortality: A Population-Based Case-Crossover Study. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:171-181. [PMID: 38100468 DOI: 10.1021/acs.est.3c06889] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
A case-crossover study among 511,767 cardiovascular disease (CVD) deaths in Jiangsu province, China, during 2015-2021 was conducted to assess the association of exposure to ambient ozone (O3) and heat wave with CVD mortality and explore their possible interactions. Heat wave was defined as extreme high temperature for at least two consecutive days. Grid-level heat waves were defined by multiple combinations of apparent temperature thresholds and durations. Residential O3 and heat wave exposures were assessed using grid data sets (spatial resolution: 1 km × 1 km for O3; 0.0625° × 0.0625° for heat wave). Conditional logistic regression models were applied for exposure-response analyses and evaluation of additive interactions. Under different heat wave definitions, the odds ratios (ORs) of CVD mortality associated with medium-level and high-level O3 exposures ranged from 1.029 to 1.107 compared with low-level O3, while the ORs for heat wave exposure ranged from 1.14 to 1.65. Significant synergistic effects on CVD mortality were observed for the O3 and heat wave exposures, which were generally greater with higher levels of the O3 exposure, higher temperature thresholds, and longer durations of heat wave exposure. Up to 5.8% of the CVD deaths were attributable to O3 and heat wave. Women and older adults were more vulnerable to the exposure to O3 and heat wave exposure. Exposure to both O3 and heat wave was significantly associated with an increased odds of CVD mortality, and O3 and heat wave can interact synergistically to trigger CVD deaths.
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Affiliation(s)
- Ruijun Xu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Hong Sun
- Institute of Environment and Health, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu 210009, China
| | - Zihua Zhong
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Yi Zheng
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Tingting Liu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Yingxin Li
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Likun Liu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Lu Luo
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Sirong Wang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Ziquan Lv
- Central Laboratory of Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong 518055, China
| | - Suli Huang
- School of Public Health, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong 518055, China
| | - Chunxiang Shi
- Meteorological Data Laboratory, National Meteorological Information Center, Beijing 100081, China
| | - Weiqing Chen
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Jing Wei
- Department of Atmospheric and Oceanic Science, Earth System Science Interdisciplinary Center, University of Maryland, College Park, Maryland 20740, United States
| | - Wenhao Xia
- Department of Hypertension and Vascular Disease, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, China
- Department of Cardiology, Guangxi Hospital Division of The First Affiliated Hospital, Sun Yat-sen University, Nanning, Guangxi 530022, China
| | - Yuewei Liu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
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11
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Ray JL, Postma B, Kendall RL, Ngo MD, Foo CX, Saunders B, Ronacher K, Gowdy KM, Holian A. Estrogen contributes to sex differences in M2a macrophages during multi-walled carbon nanotube-induced respiratory inflammation. FASEB J 2024; 38:e23350. [PMID: 38071600 PMCID: PMC10752389 DOI: 10.1096/fj.202301571rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/16/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023]
Abstract
Lung diseases characterized by type 2 inflammation are reported to occur with a female bias in prevalence/severity in both humans and mice. This includes previous work examining multi-walled carbon nanotube (MWCNT)-induced eosinophilic inflammation, in which a more exaggerated M2a phenotype was observed in female alveolar macrophages (AMs) compared to males. The mechanisms responsible for this sex difference in AM phenotype are still unclear, but estrogen receptor (ER) signaling is a likely contributor. Accordingly, male AMs downregulated ERα expression after MWCNT exposure while female AMs did not. Thus, ER antagonist Fulvestrant was administered prior to MWCNT instillation. In females, Fulvestrant significantly attenuated MWCNT-induced M2a gene expression and eosinophilia without affecting IL-33. In males, Fulvestrant did not affect eosinophil recruitment but reduced IL-33 and M2a genes compared to controls. Regulation of cholesterol efflux and oxysterol synthesis is a potential mechanism through which estrogen promotes the M2a phenotype. Levels of oxysterols 25-OHC and 7α,25-OHC were higher in the airways of MWCNT-exposed males compared to MWCNT-females, which corresponds with the lower IL-1β production and greater macrophage recruitment previously observed in males. Sex-based changes in cholesterol efflux transporters Abca1 and Abcg1 were also observed after MWCNT exposure with or without Fulvestrant. In vitro culture with estrogen decreased cellular cholesterol and increased the M2a response in female AMs, but did not affect cholesterol content in male AMs and reduced M2a polarization. These results reveal the modulation of (oxy)sterols as a potential mechanism through which estrogen signaling may regulate AM phenotype resulting in sex differences in downstream respiratory inflammation.
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Affiliation(s)
- Jessica L. Ray
- Center for Environmental Health Sciences, University of Montana, Missoula, MT, USA
| | - Britten Postma
- Center for Environmental Health Sciences, University of Montana, Missoula, MT, USA
| | - Rebekah L. Kendall
- Center for Environmental Health Sciences, University of Montana, Missoula, MT, USA
| | - Minh Dao Ngo
- Mater Research Institute, Translational Research Institute, The University of Queensland, Brisbane, Australia
| | - Cheng Xiang Foo
- Mater Research Institute, Translational Research Institute, The University of Queensland, Brisbane, Australia
| | - Brett Saunders
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, The Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, Ohio, USA
| | - Katharina Ronacher
- Mater Research Institute, Translational Research Institute, The University of Queensland, Brisbane, Australia
- Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, Australia
| | - Kymberly M. Gowdy
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, The Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, Ohio, USA
| | - Andrij Holian
- Center for Environmental Health Sciences, University of Montana, Missoula, MT, USA
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12
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Liang S, Lu Z, Cai L, Zhu M, Zhou H, Zhang J. Multi-Omics analysis reveals molecular insights into the effects of acute ozone exposure on lung tissues of normal and obese male mice. ENVIRONMENT INTERNATIONAL 2024; 183:108436. [PMID: 38219541 DOI: 10.1016/j.envint.2024.108436] [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: 10/10/2023] [Revised: 01/05/2024] [Accepted: 01/08/2024] [Indexed: 01/16/2024]
Abstract
Certain sub-groups, including men and obese individuals, are more susceptible to ozone (O3) exposure, but the underlying molecular mechanisms remain unclear. In this study, the male mice were divided into two dietary groups: one fed a high-fat diet (HFD), mimicking obesity conditions, and the other fed a normal diet (ND), then exposed to 0.5 ppm and 2 ppm O3 for 4 h per day over two days. The HFD mice exhibited significantly higher body weight and serum lipid biochemical indicators compared to the ND mice. Obese mice also exhibited more severe pulmonary inflammation and oxidative stress. Using a multi-omics approach including proteomics, metabolomics, and lipidomics, we observed that O3 exposure induced significant pulmonary molecular changes in both obese and normal mice, primarily arachidonic acid metabolism and lipid metabolism. Different molecular biomarker responses to acute O3 exposure were also observed between two dietary groups, with immune-related proteins impacted in obese mice and PPAR pathway-related proteins affected in normal mice. Furthermore, although not statistically significant, O3 exposure tended to aggravate HFD-induced disturbances in lung glycerophospholipid metabolism. Overall, this study provides valuable molecular insights into the responses of lung to O3 exposure and highlights the potential impact of O3 on obesity-induced metabolic changes.
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Affiliation(s)
- Shijia Liang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Zhonghua Lu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Lijing Cai
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Miao Zhu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Haixia Zhou
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Jie Zhang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, Fujian, China.
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13
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Wang CY, Lin MS, Chang JJ, Chang ML, Tsai MH, Chang ST, Hsieh YY, Chen MY. Association between viral hepatitis and metabolic syndrome in lung function impairment: A Taiwan community-based study. Chronic Illn 2023; 19:758-767. [PMID: 36066023 DOI: 10.1177/17423953221124314] [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] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Metabolic syndrome (MetS) and hepatitis C virus (HCV) are associated with a higher risk of impaired pulmonary function (iPF). This study aimed to investigate the relationships among MetS, iPF, and viral hepatitis. METHODS This community-based study enrolled participants undergoing annual health check-ups in southern Taiwan between March and December 2019. We performed multivariable logistic regression analyses adjusted for demographics and characteristics to identify the factors associated with iPF. RESULTS A total of 2337 participants completed examinations, of whom 928 (39.7%) had iPF. The participants with iPF were elderly (68.8 ± 12.8 years old) and predominately female (63%). MetS increased the risk of iPF (odds ratio (OR) 1.51, 95% confidence interval (CI) 1.27-1.81, p < 0.001). Beyond age (OR 1.03, 95% CI 1.02-1.04) and smoking (OR 1.309, 95% CI 1.004-1.705), female sex (OR 0.74, 95% CI 0.59-0.93) and high education level (OR 0.96, 95% CI 0.94-0.98, p < 0.001) protected against iPF. HCV was not significantly associated with iPF (OR 1.17, 95% CI 0.90-1.52, p = 0.235) in multivariable analysis. MetS was associated with a higher risk of iPF in the non-HBV/HCV group (OR 1.86, 95% CI 1.54-2.26) and HBV alone group (OR 3.44, 95% CI 1.89-6.28), but not in the HCV alone group (OR 1.02, 95% CI 0.64-1.62). DISCUSSION MetS was an independent predictor of iPF, especially the restrictive type, and had different effects in the HBV/non-viral hepatitis and HCV groups. Female sex and education were inversely associated with iPF.
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Affiliation(s)
- Chung-Yu Wang
- Department of Internal Medicine, Department of Cardiology, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Ming-Shyan Lin
- Department of Internal Medicine, Department of Cardiology, Chang Gung Memorial Hospital, Chiayi, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University
- Department of Nursing, Chang Gung University of Science and Technology, Chiayi, Taiwan
| | - Jung-Jung Chang
- Department of Internal Medicine, Department of Cardiology, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Ming-Ling Chang
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Ming-Horng Tsai
- Department of Pediatrics, Chang Gung Memorial Hospital, Yunlin, Taiwan
| | - Shih-Tai Chang
- Department of Internal Medicine, Department of Cardiology, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Yung-Yu Hsieh
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Mei-Yen Chen
- Department of Internal Medicine, Department of Cardiology, Chang Gung Memorial Hospital, Chiayi, Taiwan
- Department of Nursing, Chang Gung University of Science and Technology, Chiayi, Taiwan
- School of Nursing, Chang Gung University, Taoyuan, Taiwan
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14
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Zhang W, Gao R, Cui Y, Ding F, Zhu S, Luo S, Liu H, Li M. Sex difference in the morbidity and pain response with stage 0 of medication-related osteonecrosis of the jaws. J Oral Biosci 2023; 65:324-333. [PMID: 37543255 DOI: 10.1016/j.job.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/07/2023]
Abstract
OBJECTIVE Medication-related osteonecrosis of the jaws (MRONJ) is a potentially severe complication associated with antiresorptive or antiangiogenic therapies. Prior studies, including our own clinical data, have indicated a higher incidence of MRONJ among women compare to men. However, robust evidence establishing a relationship between sex and the prevalence of MRONJ is lacking. METHODS We conducted a meta-analysis and utilized murine models to investigate potential sex-based differences in the morbidity associated with MRONJ. RESULTS Our results revealed no significant difference in the incidence of MRONJ between the sexes when using exposed necrotic bone as a diagnostic criterion. However, a histological examination of the murine models identified the presence of stage 0 MRONJ. Notably, pain assessments across all groups revealed that male mice with stage 0 MRONJ displayed less severe pain symptoms than their female counterparts. CONCLUSIONS Our findings suggested that sex does not contribute to the risk of developing MRONJ. However, considering that approximately 50% of stage 0 MRONJ cases progress to more advanced stages, the less pronounced pain in male patients might delay medical consultation and potentially lead to disease progression. Clinicians should be particularly vigilant about the subdued pain response in male patients with stage 0 MRONJ to prevent disease advancement.
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Affiliation(s)
- Weidong Zhang
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China; Center of Osteoporosis and Bone Mineral Research, Shandong University, Jinan, China
| | - Ruihan Gao
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China; Center of Osteoporosis and Bone Mineral Research, Shandong University, Jinan, China
| | - Yajun Cui
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China; Center of Osteoporosis and Bone Mineral Research, Shandong University, Jinan, China
| | - Fan Ding
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China; Center of Osteoporosis and Bone Mineral Research, Shandong University, Jinan, China
| | - Siqi Zhu
- Center of Osteoporosis and Bone Mineral Research, Shandong University, Jinan, China; The Second Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Shenglei Luo
- Center of Osteoporosis and Bone Mineral Research, Shandong University, Jinan, China; Department of Oral and Maxillofacial Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Hongrui Liu
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China; Center of Osteoporosis and Bone Mineral Research, Shandong University, Jinan, China.
| | - Minqi Li
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, China; Center of Osteoporosis and Bone Mineral Research, Shandong University, Jinan, China.
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15
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Sundar IK, Duraisamy SK, Choudhary I, Saini Y, Silveyra P. Acute and Repeated Ozone Exposures Differentially Affect Circadian Clock Gene Expression in Mice. Adv Biol (Weinh) 2023; 7:e2300045. [PMID: 37204107 PMCID: PMC10657336 DOI: 10.1002/adbi.202300045] [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: 01/30/2023] [Revised: 04/20/2023] [Indexed: 05/20/2023]
Abstract
Circadian rhythms have an established role in regulating physiological processes, such as inflammation, immunity, and metabolism. Ozone, a common environmental pollutant with strong oxidative potential, is implicated in lung inflammation/injury in asthmatics. However, whether O3 exposure affects the expression of circadian clock genes in the lungs is not known. In this study, changes in the expression of core clock genes are analyzed in the lungs of adult female and male mice exposed to filtered air (FA) or O3 using qRT-PCR. The findings are confirmed using an existing RNA-sequencing dataset from repeated FA- and O3 -exposed mouse lungs and validated by qRT-PCR. Acute O3 exposure significantly alters the expression of clock genes in the lungs of females (Per1, Cry1, and Rora) and males (Per1). RNA-seq data revealing sex-based differences in clock gene expression in the airway of males (decreased Nr1d1/Rev-erbα) and females (increased Skp1), parenchyma of females and males (decreased Nr1d1 and Fbxl3 and increased Bhlhe40 and Skp1), and alveolar macrophages of males (decreased Arntl/Bmal1, Per1, Per2, Prkab1, and Prkab2) and females (increased Cry2, Per1, Per2, Csnk1d, Csnk1e, Prkab2, and Fbxl3). These findings suggest that lung inflammation caused by O3 exposure affects clock genes which may regulate key signaling pathways.
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Affiliation(s)
- Isaac Kirubakaran Sundar
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Santhosh Kumar Duraisamy
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Ishita Choudhary
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA
| | - Yogesh Saini
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA
| | - Patricia Silveyra
- Department of Environmental and Occupational Health, Indiana University, School of Public Health, Bloomington, IN, USA
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16
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Zhang X, Sun N, Huang Y, Duan Y, Zhang R. Role of NLRP3 in the exacerbation of ozone-induced allergic rhinitis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 265:115506. [PMID: 37742576 DOI: 10.1016/j.ecoenv.2023.115506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/31/2023] [Accepted: 09/18/2023] [Indexed: 09/26/2023]
Abstract
OBJECTIVE Allergic rhinitis (AR) is an immunoglobulin E (IgE)-mediated inflammatory disorder of the nasal mucosa, and the impact of ozone on AR is gaining increasing attention. Although NOD-like receptor thermal protein domain associated protein 3 (NLRP3) plays a crucial role in the pathogenesis of AR, its regulatory mechanisms in ozone-induced exacerbation remain unclear. Therefore, we explored the impact of ozone inhalation on inflammation in AR and investigated the regulatory mechanisms involving NLRP3. METHODS Fifty female Sprague-Dawley rats were selected and divided into five groups: normal control (NC), normal with ozone exposure (NE), AR model, AR with ozone exposure (ARE), and ARE treated with the NLRP3 inhibitor MCC950 (ARE+MCC950). Behavioral changes were observed in the rats, and the expression of NLRP3, active-caspase 1, and GSDMD-N was detected by western blotting. The expression levels of interleukin (IL)- 4, IL-5, IL-13, IL-1β, and ovalbumin-specific IgE (OVA-sIgE) in nasal lavage fluid as well as IL-6 in the serum were measured by ELISA. The expression and distribution of NLRP3 and IL-1β in nasal mucosal tissue were detected by immunohistochemistry, and pathological changes and eosinophilic infiltration in nasal mucosal tissue were observed by hematoxylin and eosin (HE) staining. The effects of ozone exposure on inflammation in the nasal mucosal tissue of rats with AR and the relationship between NLRP3 and inflammation were analyzed. RESULTS Upregulation of NLRP3 was observed in the AR rat model, and ozone further aggravated the expression of NLRP3 in the nasal mucosal tissue. Compared to the AR, NC, and NE groups, NLRP3 inflammasomes were activated in the ARE group, and the expression levels of related indexes active-caspase 1 and GSDMD-N were significantly increased; the expression levels of Th2 inflammatory factors IL-4, IL-5, IL-13, and OVA-sIgE were increased, and inflammatory factors such as IL-1β and IL-6 expression was also significantly increased. HE staining revealed that ozone aggravated damage to the nasal mucosal tissue in AR. Compared with the ARE group, the expression of NLRP3 inflammasomes was downregulated, sneezing and scratching symptoms were reduced, inflammatory indicators in nasal lavage fluid were decreased, and nasal mucosal tissue damage was alleviated in rats in the ARE+MCC950 group. CONCLUSION Ozone exposure significantly increased the inflammatory response in an animal model of AR. MCC950 can selectively inhibit the expression of NLRP3, inhibit the activity of inflammasomes, and reduce nasal mucosal inflammation by regulating the NLRP3-caspase-1-IL-1β pathway.
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Affiliation(s)
- Xueyan Zhang
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China
| | - Na Sun
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China
| | - Yu Huang
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China
| | - Yusen Duan
- Shanghai Environmental Monitoring Center, Shanghai, China
| | - Ruxin Zhang
- Department of Otolaryngology, Huadong Hospital, Fudan University, Shanghai, China.
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17
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Sung YY, Kim M, Yuk HJ, Kim SH, Yang WK, Park GD, Kim KS, Ham WJ, Kim DS. Siraitia grosvenorii Extract Attenuates Airway Inflammation in a Mouse Model of Respiratory Disease Induced by Particulate Matter 10 Plus Diesel Exhaust Particles. Nutrients 2023; 15:4140. [PMID: 37836429 PMCID: PMC10574535 DOI: 10.3390/nu15194140] [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: 07/25/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023] Open
Abstract
Exposure to particulate matter (PM) causes considerable breathing-related health risks. Siraitia grosvenorii fruit is a traditional remedial plant used in Korea and China to treat respiratory diseases. Our recently published study showed that S. grosvenorii extract (SGE) ameliorated airway inflammation in lipopolysaccharide- and cigarette-smoke-induced chronic obstructive pulmonary disease in mice. Thus, we aimed to assess the inhibitory effects of SGE on airway inflammation in mice exposed to a fine dust mixture of PM10 (PM diameter < 10 mm) and diesel exhaust particles (DEPs) known as PM10D. The mice (BALB/c) were treated with PM10D via intranasal injection three times over a period of 12 days, and SGE 70% ethanolic extract (50 or 100 mg/kg) was orally administered daily for 12 days. SGE attenuated neutrophil accumulation and the number of immune B and T cells from the lung tissue and bronchoalveolar lavage fluid (BALF) of the PM10D-exposed mice. SGE reduced the secretion of cytokines and chemokines, including interleukin (IL)-1α, tumor necrosis factor (TNF)-α, IL-17, C-X-C motif chemokine ligand (CXCL)1, and macrophage inflammatory protein (MIP)-2 in the BALF. Airway inflammation, infiltration of inflammatory cells, and collagen fibrosis in the lung after PM10D exposure were investigated via histopathological analysis, and SGE treatment ameliorated these symptoms. SGE decreased the mRNA expression of mucin 5AC (MUC5AC), CXCL1, TNF-α, MIP-2, and transient receptor potential ion channels in the lung tissues. Furthermore, SGE ameliorated the activation of mitogen-activated protein kinase (MAPK)/nuclear factor-kappa B (NF-κB) signaling by PM10D in the lungs. We conclude that SGE attenuated PM10D-induced neutrophilic airway inflammation by inhibiting MAPK/NF-κB activation. These results show that SGE may be a candidate for the treatment of inflammatory respiratory diseases.
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Affiliation(s)
- Yoon-Young Sung
- KM Science Research Division, Korea Institute of Oriental Medicine, 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 34054, Republic of Korea; (Y.-Y.S.); (M.K.); (H.J.Y.)
| | - Misun Kim
- KM Science Research Division, Korea Institute of Oriental Medicine, 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 34054, Republic of Korea; (Y.-Y.S.); (M.K.); (H.J.Y.)
| | - Heung Joo Yuk
- KM Science Research Division, Korea Institute of Oriental Medicine, 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 34054, Republic of Korea; (Y.-Y.S.); (M.K.); (H.J.Y.)
| | - Seung-Hyung Kim
- Institute of Traditional Medicine and Bioscience, Daejeon University, 62 Daehak-ro, Dong-gu, Daejeon 34520, Republic of Korea; (S.-H.K.); (W.-K.Y.)
| | - Won-Kyung Yang
- Institute of Traditional Medicine and Bioscience, Daejeon University, 62 Daehak-ro, Dong-gu, Daejeon 34520, Republic of Korea; (S.-H.K.); (W.-K.Y.)
| | - Geum Duck Park
- Suheung Research Center, Seongnam 13488, Republic of Korea; (G.D.P.); (K.S.K.); (W.J.H.)
| | - Kyung Seok Kim
- Suheung Research Center, Seongnam 13488, Republic of Korea; (G.D.P.); (K.S.K.); (W.J.H.)
| | - Woo Jung Ham
- Suheung Research Center, Seongnam 13488, Republic of Korea; (G.D.P.); (K.S.K.); (W.J.H.)
| | - Dong-Seon Kim
- KM Science Research Division, Korea Institute of Oriental Medicine, 1672 Yuseongdae-ro, Yuseong-gu, Daejeon 34054, Republic of Korea; (Y.-Y.S.); (M.K.); (H.J.Y.)
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18
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Wang P, Sun S, Lam S, Lockwood WW. New insights into the biology and development of lung cancer in never smokers-implications for early detection and treatment. J Transl Med 2023; 21:585. [PMID: 37653450 PMCID: PMC10472682 DOI: 10.1186/s12967-023-04430-x] [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: 06/16/2023] [Accepted: 08/10/2023] [Indexed: 09/02/2023] Open
Abstract
Lung cancer is the leading cause of cancer deaths worldwide. Despite never smokers comprising between 10 and 25% of all cases, lung cancer in never smokers (LCNS) is relatively under characterized from an etiological and biological perspective. The application of multi-omics techniques on large patient cohorts has significantly advanced the current understanding of LCNS tumor biology. By synthesizing the findings of multi-omics studies on LCNS from a clinical perspective, we can directly translate knowledge regarding tumor biology into implications for patient care. Primarily focused on never smokers with lung adenocarcinoma, this review details the predominance of driver mutations, particularly in East Asian patients, as well as the frequency and importance of germline variants in LCNS. The mutational patterns present in LCNS tumors are thoroughly explored, highlighting the high abundance of the APOBEC signature. Moreover, this review recognizes the spectrum of immune profiles present in LCNS tumors and posits how it can be translated to treatment selection. The recurring and novel insights from multi-omics studies on LCNS tumor biology have a wide range of clinical implications. Risk factors such as exposure to outdoor air pollution, second hand smoke, and potentially diet have a genomic imprint in LCNS at varying degrees, and although they do not encompass all LCNS cases, they can be leveraged to stratify risk. Germline variants similarly contribute to a notable proportion of LCNS, which warrants detailed documentation of family history of lung cancer among never smokers and demonstrates value in developing testing for pathogenic variants in never smokers for early detection in the future. Molecular driver subtypes and specific co-mutations and mutational signatures have prognostic value in LCNS and can guide treatment selection. LCNS tumors with no known driver alterations tend to be stem-like and genes contributing to this state may serve as potential therapeutic targets. Overall, the comprehensive findings of multi-omics studies exert a wide influence on clinical management and future research directions in the realm of LCNS.
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Affiliation(s)
- Peiyao Wang
- Department of Integrative Oncology, British Columbia Cancer Research Institute, Vancouver, BC, Canada
- Interdisciplinary Oncology Program, University of British Columbia, Vancouver, BC, Canada
| | - Sophie Sun
- Department of Medical Oncology, British Columbia Cancer Agency Vancouver, Vancouver, BC, Canada
| | - Stephen Lam
- Department of Integrative Oncology, British Columbia Cancer Research Institute, Vancouver, BC, Canada
| | - William W Lockwood
- Department of Integrative Oncology, British Columbia Cancer Research Institute, Vancouver, BC, Canada.
- Interdisciplinary Oncology Program, University of British Columbia, Vancouver, BC, Canada.
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.
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19
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Wang S, Zhang Y, Li X, Zhao J, Zhang N, Guo Y, Chen J, Liu Y, Cui Z, Lyu Y, Gao J, Li C, Zhang W, Ma J. Effect of short-term exposure to ambient air pollutants on non-accidental mortality in emergency department visits: a time-series study. Front Public Health 2023; 11:1208514. [PMID: 37457252 PMCID: PMC10348907 DOI: 10.3389/fpubh.2023.1208514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 06/05/2023] [Indexed: 07/18/2023] Open
Abstract
Objectives Exposure to air pollution has been linked to an increased risk of premature mortality. However, the acute effects of air pollution on the risk of non-accidental mortality have not been extensively researched in developing countries, and the findings thus far have been inconsistent. Therefore, this study aimed to examine the association between short-term exposure to six pollutants (PM2.5, PM10, SO2, NO2, O3, and CO) and non-accidental mortality in Beijing, China. Methods Daily data on non-accidental deaths were gathered from 1 January 2017 to 31 December 2018. Air pollution data for the same period were collected from 35 fixed-site air quality monitoring stations in Beijing. Generalized additive models (GAM) based on Poisson regression were used to investigate the association between non-accidental mortality in emergency department visits and the daily average levels of air pollutants. Results There were 8,676 non-accidental deaths recorded during 2017-2018. After sensitivity analysis, short-term exposure to air pollutants, particularly gaseous pollutants, was linked to non-accidental mortality. Specifically, for every 10 μg/m3 increase (5 μg/m3 in SO2, 0.5 mg/m3 in CO) of SO2 (lag 04), NO2 (lag 04), O3 (lag 05), and CO (lag 04), the relative risk (RR) values were 1.054 (95% CI: 1.009, 1.100), 1.038 (95% CI: 1.013, 1.063), 1.032 (95% CI: 1.011, 1.054), and 1.034 (95% CI: 1.004, 1.066), respectively. In terms of causes of death, short-term exposure to NO2, SO2, and O3 increased the risk of circulatory mortality. Further stratified analysis revealed that the stronger associations were presented in females for O3 while in males for CO. People aged 65 and over were strongly associated with ambient air pollution. Conclusions Our study showed that ambient air pollutants were associated with non-accidental mortality. Our findings suggested that efforts to control gaseous pollution should be stepped up, and vulnerable groups should be the focus of health protection education.
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Affiliation(s)
- Siting Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Yongming Zhang
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China
| | - Xia Li
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
- Clinical Pharmacology Department, Zhejiang Hisun Pharmaceutical Co., Ltd., Taizhou, Zhejiang, China
| | - Jinhua Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Naijian Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Yuming Guo
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - Jiageng Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Yuanyuan Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Zhuang Cui
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Yuanjun Lyu
- Department of Endocrinology, Tianjin Hospital, Tianjin, China
| | - Jing Gao
- Thoracic Clinical College, Tianjin Medical University, Tianjin, China
- Cardiovascular Institute, Tianjin Chest Hospital, Tianjin, China
| | - Changping Li
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Wenyi Zhang
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Jun Ma
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, China
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20
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Valentino SA, Seidel C, Lorcin M, Sébillaud S, Wolff H, Grossmann S, Viton S, Nunge H, Saarimäki LA, Greco D, Cosnier F, Gaté L. Identification of a Gene Signature Predicting (Nano)Particle-Induced Adverse Lung Outcome in Rats. Int J Mol Sci 2023; 24:10890. [PMID: 37446067 DOI: 10.3390/ijms241310890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Nanoparticles are extensively used in industrial products or as food additives. However, despite their contribution to improving our quality of life, concerns have been raised regarding their potential impact on occupational and public health. To speed up research assessing nanoparticle-related hazards, this study was undertaken to identify early markers of harmful effects on the lungs. Female Sprague Dawley rats were either exposed to crystalline silica DQ-12 with instillation, or to titanium dioxide P25, carbon black Printex-90, or multi-walled carbon nanotube Mitsui-7 with nose-only inhalation. Tissues were collected at three post-exposure time points to assess short- and long-term effects. All particles induced lung inflammation. Histopathological and biochemical analyses revealed phospholipid accumulation, lipoproteinosis, and interstitial thickening with collagen deposition after exposure to DQ-12. Exposure to the highest dose of Printex-90 and Mitsui-7, but not P25, induced some phospholipid accumulation. Comparable histopathological changes were observed following exposure to P25, Printex-90, and Mitsui-7. Comparison of overall gene expression profiles identified 15 potential early markers of adverse lung outcomes induced by spherical particles. With Mitsui-7, a distinct gene expression signature was observed, suggesting that carbon nanotubes trigger different toxicity mechanisms to spherical particles.
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Affiliation(s)
- Sarah Amandine Valentino
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, 1 Rue du Morvan, F-54519 Vandœuvre-lès-Nancy, France
| | - Carole Seidel
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, 1 Rue du Morvan, F-54519 Vandœuvre-lès-Nancy, France
| | - Mylène Lorcin
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, 1 Rue du Morvan, F-54519 Vandœuvre-lès-Nancy, France
| | - Sylvie Sébillaud
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, 1 Rue du Morvan, F-54519 Vandœuvre-lès-Nancy, France
| | - Henrik Wolff
- Finnish Institute of Occupational Health, FI-00251 Helsinki, Finland
| | - Stéphane Grossmann
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, 1 Rue du Morvan, F-54519 Vandœuvre-lès-Nancy, France
| | - Stéphane Viton
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, 1 Rue du Morvan, F-54519 Vandœuvre-lès-Nancy, France
| | - Hervé Nunge
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, 1 Rue du Morvan, F-54519 Vandœuvre-lès-Nancy, France
| | - Laura Aliisa Saarimäki
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, FI-33520 Tampere, Finland
| | - Dario Greco
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, FI-33520 Tampere, Finland
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, FI-00100 Helsinki, Finland
| | - Frédéric Cosnier
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, 1 Rue du Morvan, F-54519 Vandœuvre-lès-Nancy, France
| | - Laurent Gaté
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, 1 Rue du Morvan, F-54519 Vandœuvre-lès-Nancy, France
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21
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Smith LC, Gow AJ, Abramova E, Vayas K, Guo C, Noto J, Lyman J, Rodriquez J, Gelfand-Titiyevskiy B, Malcolm C, Laskin JD, Laskin DL. Role of PPARγ in dyslipidemia and altered pulmonary functioning in mice following ozone exposure. Toxicol Sci 2023; 194:109-119. [PMID: 37202362 PMCID: PMC10306402 DOI: 10.1093/toxsci/kfad048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023] Open
Abstract
Exposure to ozone causes decrements in pulmonary function, a response associated with alterations in lung lipids. Pulmonary lipid homeostasis is dependent on the activity of peroxisome proliferator activated receptor gamma (PPARγ), a nuclear receptor that regulates lipid uptake and catabolism by alveolar macrophages (AMs). Herein, we assessed the role of PPARγ in ozone-induced dyslipidemia and aberrant lung function in mice. Exposure of mice to ozone (0.8 ppm, 3 h) resulted in a significant reduction in lung hysteresivity at 72 h post exposure; this correlated with increases in levels of total phospholipids, specifically cholesteryl esters, ceramides, phosphatidylcholines, phosphorylethanolamines, sphingomyelins, and di- and triacylglycerols in lung lining fluid. This was accompanied by a reduction in relative surfactant protein-B (SP-B) content, consistent with surfactant dysfunction. Administration of the PPARγ agonist, rosiglitazone (5 mg/kg/day, i.p.) reduced total lung lipids, increased relative amounts of SP-B, and normalized pulmonary function in ozone-exposed mice. This was associated with increases in lung macrophage expression of CD36, a scavenger receptor important in lipid uptake and a transcriptional target of PPARγ. These findings highlight the role of alveolar lipids as regulators of surfactant activity and pulmonary function following ozone exposure and suggest that targeting lipid uptake by lung macrophages may be an efficacious approach for treating altered respiratory mechanics.
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Affiliation(s)
- Ley Cody Smith
- Department of Pharmaceutical Sciences, University of Connecticut School of Pharmacy, Storrs, Connecticut 06269, USA
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Andrew J Gow
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Elena Abramova
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Kinal Vayas
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Changjiang Guo
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Jack Noto
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Jack Lyman
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Jessica Rodriquez
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Benjamin Gelfand-Titiyevskiy
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Callum Malcolm
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Jeffrey D Laskin
- Department of Environmental and Occupational Health and Justice, School of Public Health, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Debra L Laskin
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
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22
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Chatterjee T, Lewis TL, Arora I, Gryshyna AE, Underwood L, Masjoan Juncos JX, Aggarwal S. Sex-Based Disparities in Leukocyte Migration and Activation in Response to Inhalation Lung Injury: Role of SDF-1/CXCR4 Signaling. Cells 2023; 12:1719. [PMID: 37443753 PMCID: PMC10340292 DOI: 10.3390/cells12131719] [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: 05/25/2023] [Revised: 06/21/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023] Open
Abstract
The aim of the study was to determine whether sex-related differences exist in immune response to inhalation lung injury. C57BL/6 mice were exposed to Cl2 gas (500 ppm for 15, 20, or 30 min). Results showed that male mice have higher rates of mortality and lung injury than females. The binding of the chemokine ligand C-X-C motif chemokine 12 (CXCL12), also called stromal-derived-factor-1 (SDF-1), to the C-X-C chemokine receptor type 4 (CXCR4) on lung cells promotes the migration of leukocytes from circulation to lungs. Therefore, the hypothesis was that elevated SDF-1/CXCR4 signaling mediates exaggerated immune response in males. Plasma, blood leukocytes, and lung cells were collected from mice post-Cl2 exposure. Plasma levels of SDF-1 and peripheral levels of CXCR4 in lung cells were higher in male vs. female mice post-Cl2 exposure. Myeloperoxidase (MPO) and elastase activity was significantly increased in leukocytes of male mice exposed to Cl2. Lung cells were then ex vivo treated with SDF-1 (100 ng/mL) in the presence or absence of the CXCR4 inhibitor, AMD3100 (100 nM). SDF-1 significantly increased migration, MPO, and elastase activity in cells obtained from male vs. female mice post-Cl2 exposure. AMD3100 attenuated these effects, suggesting that differential SDF-1/CXCR4 signaling may be responsible for sex-based disparities in the immune response to inhalation lung injury.
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Affiliation(s)
| | | | | | | | | | | | - Saurabh Aggarwal
- Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35205-3703, USA; (T.C.); (T.L.L.); (I.A.); (A.E.G.); (L.U.); (J.X.M.J.)
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23
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Effects of Ozone on Sickness and Depressive-like Behavioral and Biochemical Phenotypes and Their Regulation by Serum Amyloid A in Mice. Int J Mol Sci 2023; 24:ijms24021612. [PMID: 36675130 PMCID: PMC9860713 DOI: 10.3390/ijms24021612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/04/2023] [Accepted: 01/11/2023] [Indexed: 01/14/2023] Open
Abstract
Ozone (O3) is an air pollutant that primarily damages the lungs, but growing evidence supports the idea that O3 also harms the brain; acute exposure to O3 has been linked to central nervous system (CNS) symptoms such as depressed mood and sickness behaviors. However, the mechanisms by which O3 inhalation causes neurobehavioral changes are limited. One hypothesis is that factors in the circulation bridge communication between the lungs and brain following O3 exposure. In this study, our goals were to characterize neurobehavioral endpoints of O3 exposure as they relate to markers of systemic and pulmonary inflammation, with a particular focus on serum amyloid A (SAA) and kynurenine as candidate mediators of O3 behavioral effects. We evaluated O3-induced dose-, time- and sex-dependent changes in pulmonary inflammation, circulating SAA and kynurenine and its metabolic enzymes, and sickness and depressive-like behaviors in Balb/c and CD-1 mice. We found that 3 parts per million (ppm) O3, but not 2 or 1 ppm O3, increased circulating SAA and lung inflammation, which were resolved by 48 h and was worse in females. We also found that indoleamine 2,3-dioxygenase (Ido1) mRNA expression was increased in the brain and spleen 24 h after 3 ppm O3 and that kynurenine was increased in blood. Sickness and depressive-like behaviors were observed at all O3 doses (1-3 ppm), suggesting that behavioral responses to O3 can occur independently of increased SAA or neutrophils in the lungs. Using SAA knockout mice, we found that SAA did not contribute to O3-induced pulmonary damage or inflammation, systemic increases in kynurenine post-O3, or depressive-like behavior but did contribute to weight loss. Together, these findings indicate that acute O3 exposure induces transient symptoms of sickness and depressive-like behaviors that may occur in the presence or absence of overt pulmonary neutrophilia and systemic increases of SAA. SAA does not appear to contribute to pulmonary inflammation induced by O3, although it may contribute to other aspects of sickness behavior, as reflected by a modest effect on weight loss.
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24
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He S, Klevebro S, Baldanzi G, Pershagen G, Lundberg B, Eneroth K, Hedman AM, Andolf E, Almqvist C, Bottai M, Melén E, Gruzieva O. Ambient air pollution and inflammation-related proteins during early childhood. ENVIRONMENTAL RESEARCH 2022; 215:114364. [PMID: 36126692 DOI: 10.1016/j.envres.2022.114364] [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: 05/24/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND AND AIM Experimental studies show that short-term exposure to air pollution may alter cytokine concentrations. There is, however, a lack of epidemiological studies evaluating the association between long-term air pollution exposure and inflammation-related proteins in young children. Our objective was to examine whether air pollution exposure is associated with inflammation-related proteins during the first 2 years of life. METHODS In a pooled analysis of two birth cohorts from Stockholm County (n = 158), plasma levels of 92 systemic inflammation-related proteins were measured by Olink Proseek Multiplex Inflammation panel at 6 months, 1 year and 2 years of age. Time-weighted average exposure to particles with an aerodynamic diameter of <10 μm (PM10), <2.5 μm (PM2.5), and nitrogen dioxide (NO2) at residential addresses from birth and onwards was estimated via validated dispersion models. Stratified by sex, longitudinal cross-referenced mixed effect models were applied to estimate the overall effect of preceding air pollution exposure on combined protein levels, "inflammatory proteome", over the first 2 years of life, followed by cross-sectional protein-specific bootstrapped quantile regression analysis. RESULTS We identified significant longitudinal associations of inflammatory proteome during the first 2 years of life with preceding PM2.5 exposure, while consistent associations with PM10 and NO2 across ages were only observed among girls. Subsequent protein-specific analyses revealed significant associations of PM10 exposure with an increase in IFN-gamma and IL-12B in boys, and a decrease in IL-8 in girls at different percentiles of proteins levels, at age 6 months. Several inflammation-related proteins were also significantly associated with preceding PM10, PM2.5 and NO2 exposures, at ages 1 and 2 years, in a sex-specific manner. CONCLUSIONS Ambient air pollution exposure influences inflammation-related protein levels already during early childhood. Our results also suggest age- and sex-specific differences in the impact of air pollution on children's inflammatory profiles.
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Affiliation(s)
- Shizhen He
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Susanna Klevebro
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden; Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Gabriel Baldanzi
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Department of Medical Sciences, Molecular Epidemiology, Uppsala University, Uppsala, Sweden
| | - Göran Pershagen
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Björn Lundberg
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden; Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Kristina Eneroth
- Environment and Health Administration, SLB-analys, Stockholm, Sweden
| | - Anna M Hedman
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Ellika Andolf
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden
| | - Catarina Almqvist
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Pediatric Allergy and Pulmonology Unit at Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Matteo Bottai
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Erik Melén
- Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden; Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden
| | - Olena Gruzieva
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
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Guo H, Yu H, Feng Y, Cheng W, Li Y, Wang Y. The role of estrogen receptor β in fine particulate matter (PM 2.5) organic extract-induced pulmonary inflammation in female and male mice. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:60922-60932. [PMID: 35435549 DOI: 10.1007/s11356-022-20055-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
Fine particulate matter organic extract (Po) was reported to promote inflammation in the lung. Sex differences were reported in many inflammatory diseases. In this study, we investigated the effects of Po exposure on pulmonary inflammatory response and evaluated the role of sex in this process. While mice were exposed to 100 µg/m3 Po for 12 weeks by an inhalation exposure system, the lung histopathological analysis shown obvious inflammation, the cell numbers in bronchoalveolar lavage fluid (BALF) were significantly increased, and most inflammatory cytokines in BALF were upregulated. The results of factorial analysis of variance shown that there was an interaction between sex and Po exposure in the inflammatory cell numbers and the levels of tumor necrosis factor-α (TNF-α), interleukin-5 (IL-5), and growth-related oncogene/keratinocyte chemoattractant (GRO/KC). Notably, these changes and interactions were diminished while Po-exposed mice were administered with the estrogen receptor β (ERβ) antagonist. We speculated that sex might affect the levels of inflammatory indicators in BALF of Po-exposed mice and female mice were more prone to inflammation while exposed to Po. Moreover, ERβ was involved in these processes. To our knowledge, this is the first investigation about the role of sex in Po-induced adverse effects.
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Affiliation(s)
- Huaqi Guo
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
- The Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, no. 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China
| | - Hengyi Yu
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Yan Feng
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Wei Cheng
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Yan Li
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China
| | - Yan Wang
- School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People's Republic of China.
- The Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, no. 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China.
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Sex Steroids Effects on Asthma: A Network Perspective of Immune and Airway Cells. Cells 2022; 11:cells11142238. [PMID: 35883681 PMCID: PMC9318292 DOI: 10.3390/cells11142238] [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: 05/18/2022] [Revised: 07/13/2022] [Accepted: 07/17/2022] [Indexed: 11/17/2022] Open
Abstract
A multitude of evidence has suggested the differential incidence, prevalence and severity of asthma between males and females. A compilation of recent literature recognized sex differences as a significant non-modifiable risk factor in asthma pathogenesis. Understanding the cellular and mechanistic basis of sex differences remains complex and the pivotal point of this ever elusive quest, which remains to be clarified in the current scenario. Sex steroids are an integral part of human development and evolution while also playing a critical role in the conditioning of the immune system and thereby influencing the function of peripheral organs. Classical perspectives suggest a pre-defined effect of sex steroids, generalizing estrogens popularly under the “estrogen paradox” due to conflicting reports associating estrogen with a pro- and anti-inflammatory role. On the other hand, androgens are classified as “anti-inflammatory,” serving a protective role in mitigating inflammation. Although considered mainstream and simplistic, this observation remains valid for numerous reasons, as elaborated in the current review. Women appear immune-favored with stronger and more responsive immune elements than men. However, the remarkable female predominance of diverse autoimmune and allergic diseases contradicts this observation suggesting that hormonal differences between the sexes might modulate the normal and dysfunctional regulation of the immune system. This review illustrates the potential relationship between key elements of the immune cell system and their interplay with sex steroids, relevant to structural cells in the pathophysiology of asthma and many other lung diseases. Here, we discuss established and emerging paradigms in the clarification of observed sex differences in asthma in the context of the immune system, which will deepen our understanding of asthma etiopathology.
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Li Y, Yuan X, Wei J, Sun Y, Ni W, Zhang H, Zhang Y, Wang R, Xu R, Liu T, Yang C, Chen G, Xu J, Liu Y. Long-term exposure to ambient air pollution and serum liver enzymes in older adults: a population-based longitudinal study. Ann Epidemiol 2022; 74:1-7. [PMID: 35680103 DOI: 10.1016/j.annepidem.2022.05.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 05/29/2022] [Accepted: 05/31/2022] [Indexed: 11/01/2022]
Abstract
PURPOSE To investigate the association of long-term exposure to ambient air pollution with serum liver enzymes in older adults. METHODS In this longitudinal study, we investigated 318,911 adults aged ≥65 years and assessed their long-term residential exposure to particulate matter with an aerodynamic diameter ≤2.5 µm (PM2.5), particulate matter with an aerodynamic diameter ≤10 µm (PM10), sulfur dioxide (SO2), nitrogen dioxide (NO2), carbon monoxide (CO), and ozone (O3). Linear mixed models and generalized linear mixed models were implemented for exposure-response analyses. RESULTS Each interquartile range (IQR) increase of PM2.5, PM10, SO2, NO2, CO, and O3 exposures was significantly associated with a 4.6%, 4.6%, 5.6%, 4.6%, 6.2%, and 3.6% increase in alanine aminotransferase (ALT), and a 4.6%, 5.2%, 3.6%, 3.3%, 6.1%, and 4.0% increase in aspartate aminotransferase (AST), respectively. Each IQR increase of PM2.5, PM10, SO2, NO2, CO, and O3 exposures was significantly associated with a 23%, 24%, 28%, 17%, 31%, and 19% increase in odds of elevated ALT (>40 U/L), and a 32%, 39%, 40%, 32%, 57%, and 25% increase in odds of elevated AST (>40 U/L), respectively. CONCLUSIONS Long-term exposure to ambient air pollution was significantly associated with increased serum liver enzyme levels in older adults, suggesting that air pollution exposures may induce hepatocellular injury.
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Key Words
- AST, aspartate aminotransferase
- Alanine aminotransferase
- Ambient air pollution
- Aspartate aminotransferase
- BMI, body mass index
- CHAP, ChinaHighAirPollutants
- CI, confidence interval
- CO, carbon monoxide
- FBG, fasting blood glucose
- HDL-C, high-density lipoprotein cholesterol
- IQR, interquartile range
- LDL-C, low-density lipoprotein cholesterol
- Liver enzymes
- NO(2), nitrogen dioxide
- O(3), ozone
- OR, odds ratio
- Older adults Abbreviations: ALT, alanine aminotransferase
- PM(10), particulate matter with an aerodynamic diameter ≤10 µm
- PM(2.5), particulate matter with an aerodynamic diameter ≤2.5 µm
- SD, standardized deviation
- SO(2), sulfur dioxide
- TC, total cholesterol
- TG, triglyceride
- WC, waist circumference
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Affiliation(s)
- Yingxin Li
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China.
| | - Xueli Yuan
- Shenzhen Center for Chronic Disease Control, Shenzhen, Guangdong 518020, China
| | - Jing Wei
- Department of Chemical and Biochemical Engineering, Iowa Technology Institute, and Center for Global and Regional Environmental Research, The University of Iowa, Iowa City, IA 52242, USA
| | - Yuanying Sun
- Shenzhen Center for Chronic Disease Control, Shenzhen, Guangdong 518020, China
| | - Wenqing Ni
- Shenzhen Center for Chronic Disease Control, Shenzhen, Guangdong 518020, China
| | - Hongmin Zhang
- Shenzhen Center for Chronic Disease Control, Shenzhen, Guangdong 518020, China
| | - Yan Zhang
- Shenzhen Center for Chronic Disease Control, Shenzhen, Guangdong 518020, China
| | - Rui Wang
- Luohu Center for Chronic Disease Control, Shenzhen, Guangdong 518000, China
| | - Ruijun Xu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Tingting Liu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Chunyu Yang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Gongbo Chen
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Jian Xu
- Shenzhen Center for Chronic Disease Control, Shenzhen, Guangdong 518020, China.
| | - Yuewei Liu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
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Carnino JM, Lee H, Smith LC, Sunil VR, Rancourt RC, Vayas K, Cervelli J, Kwok ZH, Ni K, Laskin JD, Jin Y, Laskin DL. Microvesicle-Derived miRNAs Regulate Proinflammatory Macrophage Activation in the Lung Following Ozone Exposure. Toxicol Sci 2022; 187:162-174. [PMID: 35201360 PMCID: PMC9041552 DOI: 10.1093/toxsci/kfac025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Ozone is a ubiquitous air pollutant that causes lung damage and altered functioning. Evidence suggests that proinflammatory macrophages contribute to ozone toxicity. Herein, we analyzed the role of extracellular vesicles (EVs) and microRNA (miRNA) cargo in ozone-induced macrophage activation. Exposure of mice to ozone (0.8 ppm, 3 h) resulted in increases in bronchoalveolar lavage fluid EVs, which were comprised predominantly of microvesicles (MVs). NanoFACS analysis revealed that MVs generated following both air and ozone exposure was largely from CD45+ myeloid cells; these MVs were readily taken up by macrophages. Functionally, MVs from ozone, but not air treated mice, upregulated mRNA expression of inflammatory proteins in macrophages including inducible nitric oxide synthase (iNOS), CXCL-1, CXCL-2, and interleukin (IL)-1β. The miRNA profile of MVs in bronchoalveolar lavage fluid (BALF) was altered after ozone exposure; thus, increases in miR-21, miR-145, miR320a, miR-155, let-7b, miR744, miR181, miR-17, miR-92a, and miR-199a-3p were observed, whereas miR-24-3p and miR-20 were reduced. Ingenuity pathway analysis revealed that these miRNAs regulate pathways that promote inflammatory macrophage activation, and predicted that let-7a-5p/let-7b, miR-24-3p, miR-21-5p, miR-17, and miR-181a-5p are key upstream regulators of inflammatory proteins. After ozone exposure, miR-199a-3p, but not precursor miR-199a-3p, was increased in lung macrophages, indicating that it is derived from MV-mediated delivery. Furthermore, lung macrophage mRNA expression of IL-1β was upregulated after administration of MVs containing miR-199a-3p mimic but downregulated by miR-199a-3p inhibitor. Collectively, these data suggest that MVs generated following ozone exposure contribute to proinflammatory macrophage activation via MV-derived miRNAs including miR-199a-3p. These findings identify a novel pathway regulating macrophage inflammatory responses to inhaled ozone.
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Affiliation(s)
- Jonathan M Carnino
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine, Boston University, Boston, Massachusetts 02118, USA
| | - Heedoo Lee
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine, Boston University, Boston, Massachusetts 02118, USA
| | - Ley Cody Smith
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Vasanthi R Sunil
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Raymond C Rancourt
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Kinal Vayas
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Jessica Cervelli
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Zhi Hao Kwok
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine, Boston University, Boston, Massachusetts 02118, USA
| | - Kareemah Ni
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine, Boston University, Boston, Massachusetts 02118, USA
| | - Jeffrey D Laskin
- Department of Environmental and Occupational Health and Justice, School of Public Health, Rutgers University, Piscataway, New Jersey 08854, USA
| | - Yang Jin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine, Boston University, Boston, Massachusetts 02118, USA
| | - Debra L Laskin
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey 08854, USA
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29
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Ulu A, Velazquez JV, Burr A, Sveiven SN, Yang J, Bravo C, Hammock BD, Nordgren TM. Sex-Specific Differences in Resolution of Airway Inflammation in Fat-1 Transgenic Mice Following Repetitive Agricultural Dust Exposure. Front Pharmacol 2022; 12:785193. [PMID: 35095496 PMCID: PMC8793679 DOI: 10.3389/fphar.2021.785193] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/23/2021] [Indexed: 11/13/2022] Open
Abstract
In agriculture industries, workers are at increased risk for developing pulmonary diseases due to inhalation of agricultural dusts, particularly when working in enclosed confinement facilities. Agricultural dusts inhalation leads to unresolved airway inflammation that precedes the development and progression of lung disease. We have previously shown beneficial effects of the omega-3 polyunsaturated fatty acid (ω-3 PUFA) DHA in protecting against the negative inflammatory effects of repetitive dust exposure in the lung. Dietary manipulation of pulmonary disease risk is an attractive and timely approach given the contribution of an increased ω-6 to ω-3 PUFA ratio to low grade inflammation and chronic disease in the Western diet. To prevent any confounding factors that comes with dietary supplementation of ω-3 PUFA (different sources, purity, dose, and duration), we employed a Fat-1 transgenic mouse model that convert ω-6 PUFA to ω-3 PUFA, leading to a tissue ω-6 to ω-3 PUFA ratio of approximately 1:1. Building on our initial findings, we hypothesized that attaining elevated tissue levels of ω-3 PUFA would attenuate agricultural dust-induced lung inflammation and its resolution. To test this hypothesis, we compared wild-type (WT) and Fat-1 transgenic mice in their response to aqueous extracts of agricultural dust (DE). We also used a soluble epoxide hydrolase inhibitor (sEH) to potentiate the effects of ω-3 PUFA, since sEH inhibitors have been shown to stabilize the anti-inflammatory P450 metabolites derived from both ω-3 and ω-6 PUFA and promote generation of specialized pro-resolving lipid mediators from ω-3 PUFA. Over a three-week period, mice were exposed to a total of 15 intranasal instillations of DE obtained from swine confinement buildings in the Midwest. We observed genotype and sex-specific differences between the WT vs. Fat-1 transgenic mice in response to repetitive dust exposure, where three-way ANOVA revealed significant main effects of treatment, genotype, and sex. Also, Fat-1 transgenic mice displayed reduced lymphoid aggregates in the lung following DE exposure as compared to WT animals exposed to DE, suggesting improved resilience to the DE-induced inflammatory effects. Overall, our data implicate a protective role of ω-3 FA in the lung following repetitive dust exposure.
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Affiliation(s)
- Arzu Ulu
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, CA, United States
| | - Jalene V Velazquez
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, CA, United States
| | - Abigail Burr
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, CA, United States
| | - Stefanie N Sveiven
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, CA, United States
| | - Jun Yang
- Department of Entomology and Nematology, University of California Davis Comprehensive Cancer Center, University of California, Davis, Davis, CA, United States
| | - Carissa Bravo
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, CA, United States
| | - Bruce D Hammock
- Department of Entomology and Nematology, University of California Davis Comprehensive Cancer Center, University of California, Davis, Davis, CA, United States
| | - Tara M Nordgren
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, CA, United States.,Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, United States
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Tovar A, Crouse WL, Smith GJ, Thomas JM, Keith BP, McFadden KM, Moran TP, Furey TS, Kelada SNP. Integrative analysis reveals mouse strain-dependent responses to acute ozone exposure associated with airway macrophage transcriptional activity. Am J Physiol Lung Cell Mol Physiol 2022; 322:L33-L49. [PMID: 34755540 PMCID: PMC8721896 DOI: 10.1152/ajplung.00237.2021] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 11/03/2021] [Accepted: 11/04/2021] [Indexed: 01/03/2023] Open
Abstract
Acute ozone (O3) exposure is associated with multiple adverse cardiorespiratory outcomes, the severity of which varies across individuals in human populations and inbred mouse strains. However, molecular determinants of response, including susceptibility biomarkers that distinguish who will develop severe injury and inflammation, are not well characterized. We and others have demonstrated that airway macrophages (AMs) are an important resident immune cell type that are functionally and transcriptionally responsive to O3 inhalation. Here, we sought to explore influences of strain, exposure, and strain-by-O3 exposure interactions on AM gene expression and identify transcriptional correlates of O3-induced inflammation and injury across six mouse strains, including five Collaborative Cross (CC) strains. We exposed adult mice of both sexes to filtered air (FA) or 2 ppm O3 for 3 h and measured inflammatory and injury parameters 21 h later. Mice exposed to O3 developed airway neutrophilia and lung injury with strain-dependent severity. In AMs, we identified a common core O3 transcriptional response signature across all strains, as well as a set of genes exhibiting strain-by-O3 exposure interactions. In particular, a prominent gene expression contrast emerged between a low- (CC017/Unc) and high-responding (CC003/Unc) strain, as reflected by cellular inflammation and injury. Further inspection indicated that differences in their baseline gene expression and chromatin accessibility profiles likely contribute to their divergent post-O3 exposure transcriptional responses. Together, these results suggest that aspects of O3-induced respiratory responses are mediated through altered AM transcriptional signatures and further confirm the importance of gene-environment interactions in mediating differential responsiveness to environmental agents.
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Affiliation(s)
- Adelaide Tovar
- Department of Genetics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Curriculum in Genetics & Molecular Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Wesley L Crouse
- Department of Genetics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Curriculum in Bioinformatics & Computational Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Gregory J Smith
- Department of Genetics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Curriculum in Toxicology & Environmental Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Joseph M Thomas
- Department of Genetics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Benjamin P Keith
- Department of Genetics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Curriculum in Bioinformatics & Computational Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Kathryn M McFadden
- Department of Genetics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Timothy P Moran
- Department of Pediatrics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Center for Environmental Medicine, Asthma, and Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Terrence S Furey
- Department of Genetics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Curriculum in Genetics & Molecular Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Curriculum in Bioinformatics & Computational Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Samir N P Kelada
- Department of Genetics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Curriculum in Genetics & Molecular Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Curriculum in Bioinformatics & Computational Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Curriculum in Toxicology & Environmental Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Center for Environmental Medicine, Asthma, and Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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31
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Xu L, Taylor JE, Kaiser J. Short-term air pollution exposure and COVID-19 infection in the United States. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118369. [PMID: 34740737 PMCID: PMC8561119 DOI: 10.1016/j.envpol.2021.118369] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 10/08/2021] [Accepted: 10/12/2021] [Indexed: 05/19/2023]
Abstract
The Sars-CoV-2 disease (known as COVID-19) has become a global public health emergency. Researchers have been unveiling the transmission mechanisms and disclosing possible contributing factors. Studies have theorized plausible linkage mechanisms between air pollution exposure and COVID-19 infection and have divided the air pollution exposure into two types: long-term exposure and short-term exposure. However, present studies on impacts of short-term exposure have not reached a conclusive result and are mostly focusing on Asian and European countries. In this study, we conduct a nationwide analysis to examine the association between short-term air pollution exposure and COVID-19 infection in the United States. Daily confirmed cases, air pollution information, and meteorological factors at the county level were collected between March 1st and June 30th, 2020. A total of 806 (out of 3143) counties were included in this study, with 554 counties for PM2.5 and 670 counties for ozone (O3), which account for around 2.1 million cumulative confirmed cases, i.e., about 80% of all confirmed cases in the U.S. over the study period. A generalized additive model was applied to investigate the relationship between short-term exposure to PM2.5/O3 and COVID-19 confirmed cases. The statistically significant results indicate that, with every 10 μg/m3 increase in mean pollutant concentration, the number of daily confirmed cases increases by 9.41% (CI: 8.77%-10.04%) for PM2.5 and by 2.42% (CI: 1.56%-3.28%) for O3. The relative risks associated with short-term PM2.5 exposure remain positive after isolating the impacts of long-term exposure. The results of this study suggest that short-term exposure to air pollution, especially to PM2.5, may contribute to the spread and course of the pandemic. This finding has important implications for policymakers and the public to take preventive measures such as staying at home on polluted days while improving ventilation indoors to lower the probability of infection.
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Affiliation(s)
- Lei Xu
- School of Civil and Environmental Engineering, Georgia Institute of Technology, 790 Atlantic Dr NW, Atlanta, GA, 30332, United States
| | - John E Taylor
- School of Civil and Environmental Engineering, Georgia Institute of Technology, 790 Atlantic Dr NW, Atlanta, GA, 30332, United States.
| | - Jennifer Kaiser
- School of Civil and Environmental Engineering, Georgia Institute of Technology, 790 Atlantic Dr NW, Atlanta, GA, 30332, United States; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 790 Atlantic Dr NW, Atlanta, GA, 30332, United States
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32
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Choudhary I, Vo T, Paudel K, Wen X, Gupta R, Kesimer M, Patial S, Saini Y. Vesicular and extravesicular protein analyses from the airspaces of ozone-exposed mice revealed signatures associated with mucoinflammatory lung disease. Sci Rep 2021; 11:23203. [PMID: 34853335 PMCID: PMC8636509 DOI: 10.1038/s41598-021-02256-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 11/08/2021] [Indexed: 12/16/2022] Open
Abstract
Lung epithelial lining fluid (ELF) harbors a variety of proteins that influence homeostatic and stress responses in the airspaces. Exosomes, nano-sized extracellular vesicles, contain many proteins that vary in abundance and composition based on the prevailing conditions. Ozone causes inflammatory responses in the airspaces of experimental animals and humans. However, the exosomal protein signatures contained within the ELF from ozone-exposed lung airspaces remain poorly characterized. To explore this, we hypothesized that ozone triggers the release of exosome-bound inflammatory proteins from various cells that reflect mucoobstructive lung disease. Accordingly, we repetitively exposed adult male and female C57BL/6 mice to HEPA-filtered air (air) or 0.8 ppm ozone (4 h per day) for 14 days (five consecutive days of exposure, 2 days of rest, five consecutive days of exposure, 2 days of rest, four consecutive days of exposure). Exosome-bound proteomic signatures, as well as the levels of soluble inflammatory mediators in the bronchoalveolar lavage fluid (BALF), were determined 12-16 h after the last exposure. Principal component analyses of the exosome-bound proteome revealed a clear distinction between air-exposed and ozone-exposed mice, as well as between ozone-exposed males and ozone-exposed females. In addition to 575 proteins that were enriched in both sexes upon ozone exposure, 243 and 326 proteins were enriched uniquely in ozone-exposed males and females, respectively. Ingenuity pathway analyses on enriched proteins between ozone- and air-exposed mice revealed enrichment of pro-inflammatory pathways. More specifically, macrophage activation-related proteins were enriched in exosomes from ozone-exposed mice. Cytokine analyses on the BALF revealed elevated levels of G-CSF, KC, IP-10, IL-6, and IL-5 in ozone-exposed mice. Finally, the histopathological assessment revealed significantly enhanced intracellular localization of mucoinflammatory proteins including MUC5B and FIZZ1 in ozone-exposed mice in a cell-specific manner indicating the cellular sources of the proteins that are ferried in the exosomes upon ozone-induced lung injury. Collectively, this study identified exosomal, secretory, and cell-specific proteins and biological pathways following repetitive exposure of mice to ozone.
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Affiliation(s)
- Ishita Choudhary
- grid.64337.350000 0001 0662 7451Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, 1909 Skip Bertman Drive, Baton Rouge, LA 70803 USA
| | - Thao Vo
- grid.64337.350000 0001 0662 7451Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, 1909 Skip Bertman Drive, Baton Rouge, LA 70803 USA
| | - Kshitiz Paudel
- grid.64337.350000 0001 0662 7451Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, 1909 Skip Bertman Drive, Baton Rouge, LA 70803 USA
| | - Xue Wen
- grid.64337.350000 0001 0662 7451Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803 USA
| | - Richa Gupta
- grid.10698.360000000122483208Department of Pathology and Laboratory Medicine, UNC School of Medicine, Chapel Hill, NC 27510 USA
| | - Mehmet Kesimer
- grid.10698.360000000122483208Department of Pathology and Laboratory Medicine, UNC School of Medicine, Chapel Hill, NC 27510 USA
| | - Sonika Patial
- grid.64337.350000 0001 0662 7451Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, 1909 Skip Bertman Drive, Baton Rouge, LA 70803 USA
| | - Yogesh Saini
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, 1909 Skip Bertman Drive, Baton Rouge, LA, 70803, USA.
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Relationships between Long-Term Ozone Exposure and Allergic Rhinitis and Bronchitic Symptoms in Chinese Children. TOXICS 2021; 9:toxics9090221. [PMID: 34564372 PMCID: PMC8472948 DOI: 10.3390/toxics9090221] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 12/24/2022]
Abstract
Numerous studies have demonstrated that exposure to ambient ozone (O3) could have adverse effects on children's respiratory health. However, previous studies mainly focused on asthma and wheezing. Evidence for allergic rhinitis and bronchitic symptoms (e.g., persistent cough and phlegm) associated with O3 is limited, and results from existing studies are inconsistent. This study included a total of 59,754 children from the seven northeastern cities study (SNEC), who were aged 2 to 17 years and from 94 kindergarten, elementary and middle schools. Information on doctor-diagnosed allergic rhinitis (AR), persistent cough, and persistent phlegm was collected during 2012-2013 using a standardized questionnaire developed by the American Thoracic Society (ATS). Information for potential confounders was also collected via questionnaire. Individuals' exposure to ambient ozone (O3) during the four years before the investigation was estimated using a satellite-based random forest model. A higher level of O3 was significantly associated with increased risk of AR and bronchitic symptoms. After controlling for potential confounders, the OR (95% CI) were 1.13 (1.07-1.18), 1.10 (1.06-1.16), and 1.12 (1.05-1.20) for AR, persistent cough, and persistent phlegm, respectively, associated with each interquartile range (IQR) rise in O3 concentration. Interaction analyses showed stronger adverse effects of O3 on AR in children aged 7-17 years than those aged 2-6 years, while the adverse association of O3 with cough was more prominent in females and children aged 7-12 years than in males and children aged 2-6 and 13-17 years. This study showed that long-term exposure to ambient O3 was significantly associated with higher risk of AR and bronchitic symptoms in children, and the association varies across age and gender. Our findings contribute additional evidence for the importance of controlling O3 pollution and protecting children from O3 exposure.
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Smith GJ, Tovar A, Kanke M, Wang Y, Deshane JS, Sethupathy P, Kelada SNP. Ozone-induced changes in the murine lung extracellular vesicle small RNA landscape. Physiol Rep 2021; 9:e15054. [PMID: 34558223 PMCID: PMC8461034 DOI: 10.14814/phy2.15054] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 08/31/2021] [Accepted: 09/04/2021] [Indexed: 01/08/2023] Open
Abstract
Inhalation exposure to ozone (O3 ) causes adverse respiratory health effects that result from airway inflammation, a complex response mediated in part by changes to airway cellular transcriptional programs. These programs may be regulated by microRNAs transferred between cells (e.g., epithelial cells and macrophages) via extracellular vesicles (EV miRNA). To explore this, we exposed female C57BL/6J mice to filtered air (FA), 1, or 2 ppm O3 by inhalation and collected bronchoalveolar lavage fluid (BALF) 21 h later for markers of airway inflammation, EVs, and EV miRNA. Both concentrations of O3 significantly increased markers of inflammation (neutrophils), injury (total protein), and the number of EV-sized particles in the BALF. Imagestream analysis indicated a substantial portion of particles was positive for canonical EV markers (CD81, CD51), and Siglec-F, a marker of alveolar macrophages. Using high-throughput small RNA sequencing, we identified several differentially expressed (DE) BALF EV miRNAs after 1 ppm (16 DE miRNAs) and 2 ppm (99 DE miRNAs) O3 versus FA exposure. O3 concentration-response patterns in EV miRNA expression were apparent, particularly for miR-2137, miR-126-3p, and miR-351-5p. Integrative analysis of EV miRNA expression and airway cellular mRNA expression identified EV miR-22-3p as a candidate regulator of transcriptomic responses to O3 in airway macrophages. In contrast, we did not identify candidate miRNA regulators of mRNA expression data from conducting airways (predominantly composed of epithelial cells). In summary, our data show that O3 exposure alters EV release and EV miRNA expression, suggesting that further investigation of EVs may provide insight into their effects on airway macrophage function and other mechanisms of O3 -induced respiratory inflammation.
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Affiliation(s)
- Gregory J Smith
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Adelaide Tovar
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Matt Kanke
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Yong Wang
- Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jessy S Deshane
- Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Praveen Sethupathy
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Samir N P Kelada
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
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35
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Khazen O, DiMarzio M, Platanitis K, Grimaudo HC, Hancu M, Shao MM, Staudt MD, Maguire L, Sukul VV, Durphy J, Hanspal EK, Adam O, Molho E, Pilitsis JG. Sex-specific effects of subthalamic nucleus stimulation on pain in Parkinson's disease. J Neurosurg 2021; 135:629-636. [PMID: 33036000 DOI: 10.3171/2020.6.jns201126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 06/08/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is known to reduce motor symptoms of Parkinson's disease (PD). The effects of DBS on various nonmotor symptoms often differ from patient to patient. The factors that determine whether or not a patient will respond to treatment have not been elucidated. Here, the authors evaluated sex differences in pain relief after DBS for PD. METHODS The authors prospectively evaluated 20 patients preoperatively and postoperatively after bilateral STN DBS with the validated numeric rating scale (NRS), Revised Oswestry Disability Index for low-back pain (RODI), and King's Parkinson's Disease Pain Scale (KPDPS) and assessed the impact of sex as a biological variable. RESULTS The cohort consisted of 6 female and 14 male patients with a mean duration of 11.8 ± 2.0 months since DBS surgery. Females were significantly older (p = 0.02). Covariate analysis, however, showed no effect of age, stimulation settings, or other confounding variables. KPDPS total scores statistically significantly improved only among males (p < 0.001). Males improved more than females in musculoskeletal and chronic subsets of the KPDPS (p = 0.03 and p = 0.01, respectively). RODI scores significantly improved in males but not in females (p = 0.03 and p = 0.30, respectively). Regarding the NRS score, the improvements seen in both sexes in NRS were not significant. CONCLUSIONS Although it is well recognized that pain complaints in PD are different between men and women, this study is unique in that it examines the sex-specific DBS effects on this symptom. Considering sex as a biological variable may have important implications for DBS pain outcome studies moving forward.
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Affiliation(s)
- Olga Khazen
- Departments of1Neuroscience and Experimental Therapeutics
| | | | | | | | - Maria Hancu
- Departments of1Neuroscience and Experimental Therapeutics
| | - Miriam M Shao
- Departments of1Neuroscience and Experimental Therapeutics
| | | | - Lucy Maguire
- Departments of1Neuroscience and Experimental Therapeutics
- 2Neurosurgery, and
| | | | | | - Era K Hanspal
- 3Neurology, Albany Medical College, Albany, New York
| | - Octavian Adam
- 3Neurology, Albany Medical College, Albany, New York
| | - Eric Molho
- 3Neurology, Albany Medical College, Albany, New York
| | - Julie G Pilitsis
- Departments of1Neuroscience and Experimental Therapeutics
- 2Neurosurgery, and
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36
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Yaeger MJ, Reece SW, Kilburg-Basnyat B, Hodge MX, Pal A, Dunigan-Russell K, Luo B, You DJ, Bonner JC, Spangenburg EE, Tokarz D, Hannan J, Armstrong M, Manke J, Reisdorph N, Tighe RM, Shaikh SR, Gowdy KM. Sex Differences in Pulmonary Eicosanoids and Specialized Pro-Resolving Mediators in Response to Ozone Exposure. Toxicol Sci 2021; 183:170-183. [PMID: 34175951 DOI: 10.1093/toxsci/kfab081] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Ozone (O3) is a criteria air pollutant known to increase the morbidity and mortality of cardiopulmonary diseases. This occurs through a pulmonary inflammatory response characterized by increased recruitment of immune cells into the airspace, pro-inflammatory cytokines, and pro-inflammatory lipid mediators. Recent evidence has demonstrated sex-dependent differences in the O3-induced pulmonary inflammatory response. However, it is unknown if this dimorphic response is evident in pulmonary lipid mediator metabolism. We hypothesized that there are sex-dependent differences in lipid mediator production following acute O3 exposure. Male and female C57BL/6J mice were exposed to 1 part per million O3 for 3 hours and were necropsied at 6 or 24 hours following exposure. Lung lavage was collected for cell differential and total protein analysis, and lung tissue was collected for mRNA analysis, metabololipidomics, and immunohistochemistry. Compared to males, O3-exposed female mice had increases in airspace neutrophilia, neutrophil chemokine mRNA, pro-inflammatory eicosanoids such as prostaglandin E2, and specialized pro-resolving mediators (SPMs) such as resolvin D5 in lung tissue. Likewise, precursor fatty acids (arachidonic and docosahexaenoic acid; DHA) were increased in female lung tissue following O3 exposure compared to males. Experiments with ovariectomized females revealed that loss of ovarian hormones exacerbates pulmonary inflammation and injury. However, eicosanoid and SPM production were not altered by ovariectomy despite depleted pulmonary DHA concentrations. Taken together, these data indicate that O3 drives an increased pulmonary inflammatory and bioactive lipid mediator response in females. Furthermore, ovariectomy increases susceptibility to O3-induced pulmonary inflammation and injury, as well as decreases pulmonary DHA concentrations.
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Affiliation(s)
- M J Yaeger
- Pulmonary, Critical Care and Sleep Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210
| | - S W Reece
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC, 27858
| | - B Kilburg-Basnyat
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC, 27858
| | - M X Hodge
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC, 27858
| | - A Pal
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599
| | - K Dunigan-Russell
- Pulmonary, Critical Care and Sleep Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210
| | - B Luo
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, NC, 27858
| | - D J You
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, 27107
| | - J C Bonner
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, 27107
| | - E E Spangenburg
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC, 27858
| | - D Tokarz
- Experimental Pathology Laboratories, Inc, Research Triangle Park, NC, 27709
| | - J Hannan
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC, 27858
| | - M Armstrong
- Department of Pharmaceutical Sciences, University of Colorado-AMC, Aurora, CO, 80045
| | - J Manke
- Department of Pharmaceutical Sciences, University of Colorado-AMC, Aurora, CO, 80045
| | - N Reisdorph
- Department of Pharmaceutical Sciences, University of Colorado-AMC, Aurora, CO, 80045
| | - R M Tighe
- Department of Medicine, Duke University Medical Center, Durham, NC, 27710
| | - S R Shaikh
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599
| | - K M Gowdy
- Pulmonary, Critical Care and Sleep Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210
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37
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Reddy KD, Rutting S, Tonga K, Xenaki D, Simpson JL, McDonald VM, Plit M, Malouf M, Zakarya R, Oliver BG. Sexually dimorphic production of interleukin-6 in respiratory disease. Physiol Rep 2021; 8:e14459. [PMID: 32472750 PMCID: PMC7260763 DOI: 10.14814/phy2.14459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/30/2020] [Accepted: 05/03/2020] [Indexed: 12/27/2022] Open
Abstract
Diverging susceptibility and severity in respiratory diseases is prevalent between males and females. Sex hormones have inconclusively been attributed as the cause of these differences, however, strong evidence exists promoting genetic factors leading to sexual dimorphism. As such, we investigate differential proinflammatory cytokine (interleukin (IL)‐6 and CXCL8) release from TNF‐α stimulated primary human lung fibroblasts in vitro. We present, for the first time, in vitro evidence supporting clinical findings of differential production of IL‐6 between males and females across various respiratory diseases. IL‐6 was found to be produced approximately two times more from fibroblasts derived from females compared to males. As such we demonstrate sexual dimorphism in cytokine production of IL‐6 outside the context of biological factors in the human body. As such, our data highlight that differences exist between males and females in the absence of sex hormones. We, for the first time, demonstrate inherent in vitro differences exist between males and females in pulmonary fibroblasts.
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Affiliation(s)
- Karosham D Reddy
- School of Life Sciences, University of Technology Sydney, Sydney, NSW, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Sandra Rutting
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Katrina Tonga
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia.,St Vincent's Hospital Sydney and St Vincent's Clinical School, University of New South Wales, Darlinghurst, NSW, Australia
| | - Dikaia Xenaki
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Jodie L Simpson
- Priority Research Centre for Healthy Lungs, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, Australia
| | - Vanessa M McDonald
- Priority Research Centre for Healthy Lungs, Faculty of Health and Medicine, University of Newcastle, Callaghan, NSW, Australia
| | - Marshall Plit
- St Vincent's Hospital Sydney and St Vincent's Clinical School, University of New South Wales, Darlinghurst, NSW, Australia
| | - Monique Malouf
- St Vincent's Hospital Sydney and St Vincent's Clinical School, University of New South Wales, Darlinghurst, NSW, Australia
| | - Razia Zakarya
- School of Life Sciences, University of Technology Sydney, Sydney, NSW, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
| | - Brian G Oliver
- School of Life Sciences, University of Technology Sydney, Sydney, NSW, Australia.,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, University of Sydney, Sydney, NSW, Australia
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38
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Reyes-García J, Montaño LM, Carbajal-García A, Wang YX. Sex Hormones and Lung Inflammation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1304:259-321. [PMID: 34019274 DOI: 10.1007/978-3-030-68748-9_15] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inflammation is a characteristic marker in numerous lung disorders. Several immune cells, such as macrophages, dendritic cells, eosinophils, as well as T and B lymphocytes, synthetize and release cytokines involved in the inflammatory process. Gender differences in the incidence and severity of inflammatory lung ailments including asthma, chronic obstructive pulmonary disease (COPD), pulmonary fibrosis (PF), lung cancer (LC), and infectious related illnesses have been reported. Moreover, the effects of sex hormones on both androgens and estrogens, such as testosterone (TES) and 17β-estradiol (E2), driving characteristic inflammatory patterns in those lung inflammatory diseases have been investigated. In general, androgens seem to display anti-inflammatory actions, whereas estrogens produce pro-inflammatory effects. For instance, androgens regulate negatively inflammation in asthma by targeting type 2 innate lymphoid cells (ILC2s) and T-helper (Th)-2 cells to attenuate interleukin (IL)-17A-mediated responses and leukotriene (LT) biosynthesis pathway. Estrogens may promote neutrophilic inflammation in subjects with asthma and COPD. Moreover, the activation of estrogen receptors might induce tumorigenesis. In this chapter, we summarize the most recent advances in the functional roles and associated signaling pathways of inflammatory cellular responses in asthma, COPD, PF, LC, and newly occurring COVID-19 disease. We also meticulously deliberate the influence of sex steroids on the development and progress of these common and severe lung diseases.
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Affiliation(s)
- Jorge Reyes-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico.,Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, USA
| | - Luis M Montaño
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Abril Carbajal-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Yong-Xiao Wang
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, USA.
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39
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Vadakedath S, Kandi V, Mohapatra RK, Pinnelli VBK, Yegurla RR, Shahapur PR, Godishala V, Natesan S, Vora KS, Sharun K, Tiwari R, Bilal M, Dhama K. Immunological aspects and gender bias during respiratory viral infections including novel Coronavirus disease-19 (COVID-19): A scoping review. J Med Virol 2021; 93:5295-5309. [PMID: 33990972 PMCID: PMC8242919 DOI: 10.1002/jmv.27081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/19/2021] [Accepted: 05/10/2021] [Indexed: 02/06/2023]
Abstract
The human immune system is not adequately equipped to eliminate new microbes and could result in serious damage on first exposure. This is primarily attributed to the exaggerated immune response (inflammatory disease), which may prove detrimental to the host, as evidenced by SARS‐CoV‐2 infection. From the experiences of Novel Coronavirus Disease‐19 to date, male patients are likely to suffer from high‐intensity inflammation and disease severity than the female population. Hormones are considered the significant pillars of sex differences responsible for the discrepancy in immune response exhibited by males and females. Females appear to be better equipped to counter invading respiratory viral pathogens, including the novel SARS‐CoV‐2, than males. It can be hypothesized that females are more shielded from disease severity, probably owing to the diverse action/influence of estrogen and other sex hormones on both cellular (thymus‐derived T lymphocytes) and humoral immunity (antibodies). Hormones are considered as significant pillars of sex differences and influence both the innate as well as adaptive immune responses. Sex hormones and their potential role in the immune responses has not been completely understood. Females are more shielded from disease severity probably owing to their unique hormonal constitution. In females, the immunological cells have been noted to restrict the spread of infections as compared to males. Males suffer from increased severity of respiratory infections and are less prone to autoimmune disorders as compared to the female counterparts. Estrogen and other sex hormones play a key role both in restricting the inflammatory responses and in effective clearance of pathogens including the novel Coronairus.
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Affiliation(s)
- Sabitha Vadakedath
- Department of Biochemistry, Prathima Institute of Medical Sciences, Karimnagar, Telangana, India
| | - Venkataramana Kandi
- Department of Microbiology, Prathima Institute of Medical Sciences, Karimnagar, Telangana, India
| | - Ranjan K Mohapatra
- Department of Chemistry, Government College of Engineering, Keonjhar, Odisha, India
| | - Venkata B K Pinnelli
- Department of Biochemistry, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, Karnataka, India
| | - Richa R Yegurla
- Prathima Institute of Medical Sciences, Karimnagar, Telangana, India
| | | | - Vikram Godishala
- Department of Biotechnology, Ganapthi Degree College, Parakal, Telangana, India
| | - Senthilkumar Natesan
- Department of Infectious Diseases, Indian Institute of Public Health Gandhinagar, Ganghinagar, Gujarat, India
| | - Kranti S Vora
- Department of Infectious Diseases, Indian Institute of Public Health Gandhinagar, Ganghinagar, Gujarat, India
| | - Khan Sharun
- Division of Surgery, ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
| | - Ruchi Tiwari
- Department of Veterinary Microbiology and Immunology, College of Veterinary Sciences, Uttar Pradesh Pandit Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go Anusandhan Sansthan (DUVASU), Mathura, India
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, India
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40
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Guttenberg MA, Vose AT, Tighe RM. Role of Innate Immune System in Environmental Lung Diseases. Curr Allergy Asthma Rep 2021; 21:34. [PMID: 33970346 PMCID: PMC8311569 DOI: 10.1007/s11882-021-01011-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2021] [Indexed: 01/07/2023]
Abstract
The lung mucosa functions as a principal barrier between the body and inhaled environmental irritants and pathogens. Precise and targeted surveillance mechanisms are required at this lung-environment interface to maintain homeostasis and preserve gas exchange. This is performed by the innate immune system, a germline-encoded system that regulates initial responses to foreign irritants and pathogens. Environmental pollutants, such as particulate matter (PM), ozone (O3), and other products of combustion (NO2, SO3, etc.), both stimulate and disrupt the function of the innate immune system of the lung, leading to the potential for pathologic consequences. PURPOSE OF REVIEW: The purpose of this review is to explore recent discoveries and investigations into the role of the innate immune system in responding to environmental exposures. This focuses on mechanisms by which the normal function of the innate immune system is modified by environmental agents leading to disruptions in respiratory function. RECENT FINDINGS: This is a narrative review of mechanisms of pulmonary innate immunity and the impact of environmental exposures on these responses. Recent findings highlighted in this review are categorized by specific components of innate immunity including epithelial function, macrophages, pattern recognition receptors, and the microbiome. Overall, the review supports broad impacts of environmental exposures to alterations to normal innate immune functions and has important implications for incidence and exacerbations of lung disease. The innate immune system plays a critical role in maintaining pulmonary homeostasis in response to inhaled air pollutants. As many of these agents are unable to be mitigated, understanding their mechanistic impact is critical to develop future interventions to limit their pathologic consequences.
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Affiliation(s)
| | | | - Robert M. Tighe
- Department of Medicine, Duke University, Durham, NC,Corresponding Author: Robert M Tighe, MD, Division of Pulmonary, Allergy, and Critical Care Medicine, Duke University Medical Center, Box 2969, Durham, North Carolina 27710, Telephone: 919-684-4894, Fax: 919-684-5266,
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41
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Ambhore NS, Kalidhindi RSR, Sathish V. Sex-Steroid Signaling in Lung Diseases and Inflammation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1303:243-273. [PMID: 33788197 DOI: 10.1007/978-3-030-63046-1_14] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Sex/gender difference exists in the physiology of multiple organs. Recent epidemiological reports suggest the influence of sex-steroids in modulating a wide variety of disease conditions. Sex-based discrepancies have been reported in pulmonary physiology and various chronic inflammatory responses associated with lung diseases like asthma, chronic obstructive pulmonary disease (COPD), pulmonary fibrosis, and rare lung diseases. Notably, emerging clinical evidence suggests that several respiratory diseases affect women to a greater degree, with increased severity and prevalence than men. Although sex-specific differences in various lung diseases are evident, such differences are inherent to sex-steroids, which are major biological variables in men and women who play a central role to control these differences. The focus of this chapter is to comprehend the sex-steroid biology in inflammatory lung diseases and to understand the mechanistic role of sex-steroids signaling in regulating these diseases. Exploring the roles of sex-steroid signaling in the regulation of lung diseases and inflammation is crucial for the development of novel and effective therapy. Overall, we will illustrate the importance of differential sex-steroid signaling in lung diseases and their possible clinical implications for the development of complementary and alternative medicine to treat lung diseases.
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Affiliation(s)
- Nilesh Sudhakar Ambhore
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, ND, USA
| | | | - Venkatachalem Sathish
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, ND, USA.
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42
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Kalidhindi RSR, Ambhore NS, Balraj P, Schmidt T, Khan MN, Sathish V. Androgen receptor activation alleviates airway hyperresponsiveness, inflammation, and remodeling in a murine model of asthma. Am J Physiol Lung Cell Mol Physiol 2021; 320:L803-L818. [PMID: 33719566 DOI: 10.1152/ajplung.00441.2020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Epidemiological studies demonstrate an apparent sex-based difference in the prevalence of asthma, with a higher risk in boys than girls, which is reversed postpuberty, where women become more prone to asthma than men, suggesting a plausible beneficial role for male hormones, especially androgens as a regulator of pathophysiology in asthmatic lungs. Using a murine model of asthma developed with mixed allergen (MA) challenge, we report a significant change in airway hyperresponsiveness (AHR), as demonstrated by increased thickness of epithelial and airway smooth muscle layers and collagen deposition, as well as Th2/Th17-biased inflammation in the airways of non-gonadectomized (non-GDX) and gonadectomized (GDX) male mice. Here, compared with non-GDX mice, MA-induced AHR and inflammatory changes were more prominent in GDX mice. Activation of androgen receptor (AR) using 5α-dihydrotestosterone (5α-DHT, AR agonist) resulted in decreased Th2/Th17 inflammation and remodeling-associated changes, resulting in improved lung function compared with MA alone challenged mice, especially in GDX mice. These changes were not observed with Flutamide (Flut, AR antagonist). Overall, we show that AR exerts a significant and beneficial role in asthma by regulating AHR and inflammation.
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Affiliation(s)
- Rama Satyanarayana Raju Kalidhindi
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, North Dakota
| | - Nilesh Sudhakar Ambhore
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, North Dakota
| | - Premanand Balraj
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, North Dakota
| | - Taylor Schmidt
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota
| | - M Nadeem Khan
- Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota
| | - Venkatachalem Sathish
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, North Dakota
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43
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Gowdy KM, Kilburg-Basnyat B, Hodge MX, Reece SW, Yermalitsk V, Davies SS, Manke J, Armstrong ML, Reisdorph N, Tighe RM, Shaikh SR. Novel Mechanisms of Ozone-Induced Pulmonary Inflammation and Resolution, and the Potential Protective Role of Scavenger Receptor BI. Res Rep Health Eff Inst 2021; 2021:1-49. [PMID: 33998222 PMCID: PMC8126671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023] Open
Abstract
INTRODUCTION Increases in ambient levels of ozone (O3), a criteria air pollutant, have been associated with increased susceptibility and exacerbations of chronic pulmonary diseases through lung injury and inflammation. O3 induces pulmonary inflammation, in part by generating damage-associated molecular patterns (DAMPs), which are recognized by pattern recognition receptors (PRRs), such as toll-like receptors (TLRs) and scavenger receptors (SRs). This inflammatory response is mediated in part by alveolar macrophages (AMs), which highly express PRRs, including scavenger receptor BI (SR-BI). Once pulmonary inflammation has been induced, an active process of resolution occurs in order to prevent secondary necrosis and to restore tissue homeostasis. The processes known to promote the resolution of inflammation include the clearance by macrophages of apoptotic cells, known as efferocytosis, and the production of specialized pro-resolving mediators (SPMs). Impaired efferocytosis and production of SPMs have been associated with the pathogenesis of chronic lung diseases; however, these impairments have yet to be linked with exposure to air pollutants. SPECIFIC AIMS The primary goals of this study were: Aim 1 - to define the role of SR-BI in O3-derived pulmonary inflammation and resolution of injury; and Aim 2 - to determine if O3 exposure alters pulmonary production of SPMs and processes known to promote the resolution of pulmonary inflammation and injury. METHODS To address Aim 1, female wild-type (WT) and SR-BI-deficient, or knock-out (SR-BI KO), mice were exposed to either O3 or filtered air. In one set of experiments mice were instilled with an oxidized phospholipid (oxPL). Bronchoalveolar lavage fluid (BALF) and lung tissue were collected for the analyses of inflammatory and injury markers and oxPL. To estimate efferocytosis, mice were administered apoptotic cells (derived from the Jurkat T cell line) after O3 or filtered air exposure. To address Aim 2, male WT mice were exposed to either O3 or filtered air, and levels of SPMs were assessed in the lung, as well as markers of inflammation and injury in BALF. In some experiments SPMs were administered before exposure to O3or filtered air, to determine whether SPMs could mitigate inflammatory or resolution responses. Efferocytosis was measured as in Aim 1. RESULTS For Aim 1, SR-BI protein levels increased in the lung tissue of mice exposed to O3, compared with mice exposed to filtered air. Compared with WT controls, SR-BI KO mice had a significant increase in the number of neutrophils in their airspace 24 hours post O3 exposure. The oxPL levels increased in the airspace of both WT and SR-BI KO mice after O3 exposure, compared with filtered air controls. Four hours after instillation of an oxPL, SR-BI KO mice had an increase in BALF neutrophils and total protein, and a nonsignificant increase in macrophages compared with WT controls. O3 exposure decreased efferocytosis in both WT and SR-BI KO female mice. For Aim 2, mice given SPM supplementation before O3 exposure showed significantly increased AM efferocytosis when compared with the O3exposure control mice and also showed some mitigation of the effects of O3 on inflammation and injury. Several SPMs and their precursors were measured in lung tissue using reverse-phase high performance liquid chromatography (HPLC) with tandem mass spectrometry (MS/MS). At 24 hours after O3 exposure 14R-hydroxydocosahexaenoic acid (HDHA) and 10,17-dihydroxydocosahexaenoic acid (diHDoHE) were significantly decreased in lung tissue, but at 6 hours after exposure, levels of these SPMs increased. CONCLUSIONS Our findings identify novel mechanisms by which O3 may induce pulmonary inflammation and also increase susceptibility to and exacerbations of chronic lung diseases.
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Affiliation(s)
- K M Gowdy
- Department of Pharmacology & Toxicology, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - B Kilburg-Basnyat
- Department of Pharmacology & Toxicology, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - M X Hodge
- Department of Pharmacology & Toxicology, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - S W Reece
- Department of Pharmacology & Toxicology, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - V Yermalitsk
- Division of Clinical Pharmacology, Department of Pharmacology, Vanderbilt University, Nashville, Tennessee
| | - S S Davies
- Division of Clinical Pharmacology, Department of Pharmacology, Vanderbilt University, Nashville, Tennessee
| | - J Manke
- Pharmaceutical Science, University of Colorado School of Medicine, Aurora, Colorado
| | - M L Armstrong
- Pharmaceutical Science, University of Colorado School of Medicine, Aurora, Colorado
| | - N Reisdorph
- Pharmaceutical Science, University of Colorado School of Medicine, Aurora, Colorado
| | - R M Tighe
- Department of Medicine, Duke University Medical Center, Durham, North Carolina
| | - S R Shaikh
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, University of North Carolina, Chapel Hill
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Shin HH, Gogna P, Maquiling A, Parajuli RP, Haque L, Burr B. Comparison of hospitalization and mortality associated with short-term exposure to ambient ozone and PM 2.5 in Canada. CHEMOSPHERE 2021; 265:128683. [PMID: 33158503 DOI: 10.1016/j.chemosphere.2020.128683] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/15/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Hospitalization and mortality (H-M) have been linked to air pollution separately. However, previous studies have not adequately compared whether air pollution is a stronger risk factor for hospitalization or mortality. This study aimed to investigate differences in H-M risk from short-term ozone and PM2.5 exposures, and determine whether differences are modified by season, age, and sex. METHODS Daily ozone, PM2.5, temperature, and all-cause H-M counts (ICD-10, A00-R99) were collected for 22-24 Canadian cities for up to 29 years. Generalized additive Poisson models were employed to estimate associations between each pollutant and health outcome, which were compared across season (warm, cold, or year-round), age (all ages or seniors > 65), and sex. RESULTS Overall, ozone and PM2.5 showed higher season-specific risk of mortality than hospitalization: warm-season ozone: 0.54% (95% credible interval, 0.20, 0.85) vs. 0.14% (0.02, 0.27) per 10 ppb; and year-round PM2.5: 0.90% (0.33, 1.41) vs. 0.29% (0.03, 0.56) per 10 μg/m3. While age showed little H-M difference, sex appeared to be a modifier of H-M risk. While females had higher mortality risk, males had higher hospitalization risk: for females, ozone 0.87% (0.36, 1.35) vs. -0.03% (-0.18, 0.11) and PM2.5 1.19% (0.40, 1.90) vs. 0.19% (-0.10, 0.47); and for males ozone 0.20% (-0.28, 0.65) vs. 0.35% (0.18, 0.51). CONCLUSION This study found H-M differences attributable to ozone and PM2.5, suggesting that both are stronger risk factors for mortality than hospitalization. In addition, there were clear H-M differences by sex: specifically, females showed higher mortality risk and males showed higher hospitalization risk.
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Affiliation(s)
- Hwashin Hyun Shin
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada; Department of Mathematics and Statistics, Queen's University, Kingston, ON, Canada.
| | - Priyanka Gogna
- Department of Public Health Sciences, Queen's University, Kingston, ON, Canada.
| | - Aubrey Maquiling
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada.
| | | | - Lani Haque
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada.
| | - Benjamin Burr
- Department of Mathematics and Statistics, Carleton University, Ottawa, ON, Canada.
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Tian L, Yan J, Li K, Zhang W, Lin B, Lai W, Bian L, Liu H, Xi Z, Liu X. Ozone exposure promotes pyroptosis in rat lungs via the TLR2/4-NF-κB-NLRP3 signaling pathway. Toxicology 2020; 450:152668. [PMID: 33383130 DOI: 10.1016/j.tox.2020.152668] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/25/2020] [Accepted: 12/23/2020] [Indexed: 01/17/2023]
Abstract
OBJECTIVE Ozone has become a major air pollutant in recent years, which leading to a variety of lung diseases. This study aimed to explore the mechanisms of pyroptosis and related signaling pathways in ozone-induced lung injury. METHODS We exposed 120 Wistar rats to ozone, 20 in each group (half male and half female). Ozone exposure concentrations were 0, 0.12, 0.5, 1.0, 2.0 and 4.0 ppm for 6 h. At the same time, we isolated and cultured type I alveolar epithelial cells, then intervened with high mobility group box 1 protein (HMGB1), hyaluronic acid (HA) and Toll-like receptors 2/4 (TLR2/4) inhibitor. In animal experiments, histopathological experiments, TUNEL, ELISA and biochemical indicators were performed. RT-qPCR and western blot experiments assay were used to detect the expression changes of key factors in relevant signal pathways in vivo and in vitro. RESULTS After acute ozone exposure, the levels of lung cell injury indicators in bronchoalveolar lavage fluid (BALF), as well as the levels of inflammatory factors in BALF, blood, and lung tissue were significantly increased. Male rats were more sensitive to ozone exposure. Low-concentration ozone exposure caused mild interstitial inflammation in rat lung tissue. Severe inflammation and pulmonary edema appeared with increases in concentration. ELISA results in BALF showed that HMGB1 and HA expressions increased gradually with the increase of ozone exposure concentration. RT-qPCR and Western blot showed that when ozone concentrations increased above 0.5 ppm, the expression of nucleotide-binding domain, leucine-rich-containing family, pyrin domain-containing 3 (NLRP3), cleaved caspase-1, and N-gasdermin D (N-GSDMD) in the lung tissue increased significantly, suggesting that ozone exposure induces pyroptosis. At the same time, it was found that ozone exposure activated the nuclear factor kappa B (NF-κB) signal pathway, and increased the mRNA expressions of Toll-like receptors TLR2/4. The results of cell experiments showed that after the addition of HMGB1 and HA, the expression of NF-κB and pyroptosis related indexes increased in type I alveolar epithelial cells, while the corresponding expression decreased after the addition of TLR2/4 inhibitors. CONCLUSION Ozone exposure causes lung injury in a dose- and gender-dependent manner, and is more severe in males. When injured, the levels of HMGB1 and HA in BALF increased, which interact with TLR 2/4 to activate the downstream NF-κB signaling pathway. Further activating the NLRP3 inflammasome complex and regulating the ozone-induced pyroptosis.
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Affiliation(s)
- Lei Tian
- Tianjin Institute of Environmental and Operational Medicine, No. 1 Dali Road, Heping District, Tianjin, 300050, China.
| | - Jun Yan
- Tianjin Institute of Environmental and Operational Medicine, No. 1 Dali Road, Heping District, Tianjin, 300050, China.
| | - Kang Li
- Tianjin Institute of Environmental and Operational Medicine, No. 1 Dali Road, Heping District, Tianjin, 300050, China.
| | - Wei Zhang
- Tianjin Institute of Environmental and Operational Medicine, No. 1 Dali Road, Heping District, Tianjin, 300050, China.
| | - Bencheng Lin
- Tianjin Institute of Environmental and Operational Medicine, No. 1 Dali Road, Heping District, Tianjin, 300050, China.
| | - Wenqing Lai
- Tianjin Institute of Environmental and Operational Medicine, No. 1 Dali Road, Heping District, Tianjin, 300050, China.
| | - Liping Bian
- Tianjin Institute of Environmental and Operational Medicine, No. 1 Dali Road, Heping District, Tianjin, 300050, China.
| | - Huanliang Liu
- Tianjin Institute of Environmental and Operational Medicine, No. 1 Dali Road, Heping District, Tianjin, 300050, China.
| | - Zhuge Xi
- Tianjin Institute of Environmental and Operational Medicine, No. 1 Dali Road, Heping District, Tianjin, 300050, China.
| | - Xiaohua Liu
- Tianjin Institute of Environmental and Operational Medicine, No. 1 Dali Road, Heping District, Tianjin, 300050, China.
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Choudhary I, Vo T, Paudel K, Patial S, Saini Y. Compartment-specific transcriptomics of ozone-exposed murine lungs reveals sex- and cell type-associated perturbations relevant to mucoinflammatory lung diseases. Am J Physiol Lung Cell Mol Physiol 2020; 320:L99-L125. [PMID: 33026818 DOI: 10.1152/ajplung.00381.2020] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Ozone is known to cause lung injury, and resident cells of the respiratory tract (i.e., epithelial cells and macrophages) respond to inhaled ozone in a variety of ways that affect their survival, morphology, and functioning. However, a complete understanding of the sex-associated and the cell type-specific gene expression changes in response to ozone exposure is still limited. Through transcriptome profiling, we aimed to analyze gene expression alterations and associated enrichment of biological pathways in three distinct cell type-enriched compartments of ozone-exposed murine lungs. We subchronically exposed adult male and female mice to 0.8 ppm ozone or filtered air. RNA-Seq was performed on airway epithelium-enriched airways, parenchyma, and purified airspace macrophages. Differential gene expression and biological pathway analyses were performed and supported by cellular and immunohistochemical analyses. While a majority of differentially expressed genes (DEGs) in ozone-exposed versus air-exposed groups were common between both sexes, sex-specific DEGs were also identified in all of the three tissue compartments. As compared with ozone-exposed males, ozone-exposed females had significant alterations in gene expression in three compartments. Pathways relevant to cell division and DNA repair were enriched in the ozone-exposed airways, indicating ozone-induced airway injury and repair, which was further supported by immunohistochemical analyses. In addition to cell division and DNA repair pathways, inflammatory pathways were also enriched within the parenchyma, supporting contribution by both epithelial and immune cells. Further, immune response and cytokine-cytokine receptor interactions were enriched in macrophages, indicating ozone-induced macrophage activation. Finally, our analyses also revealed the overall upregulation of mucoinflammation- and mucous cell metaplasia-associated pathways following ozone exposure.
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Affiliation(s)
- Ishita Choudhary
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Thao Vo
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Kshitiz Paudel
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Sonika Patial
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Yogesh Saini
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
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Cervellati F, Woodby B, Benedusi M, Ferrara F, Guiotto A, Valacchi G. Evaluation of oxidative damage and Nrf2 activation by combined pollution exposure in lung epithelial cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:31841-31853. [PMID: 32504424 DOI: 10.1007/s11356-020-09412-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
The lungs are one the main organs exposed to environmental pollutants, such as tropospheric ozone (O3) and particulate matter (PM), which induce lung pathologies through similar mechanisms, resulting in altered redox homeostasis and inflammation. Although numerous studies have investigated the effects of these pollutants in the respiratory tract, there are only a few evidences that have evaluated the combined effects of outdoor stressors, despite the fact that humans are consistently exposed to more pollutants simultaneously. In this study, we wanted to investigate whether exposure to PM and O3 could have an additive, noxious effect in lung epithelial cells by measuring oxidative damage and the activity of redox-sensitive nuclear factor erythroid 2-related factor 2 (Nrf2) which is a master regulator of cellular antioxidant defenses. First, we measured the cytotoxic effects of O3 and PM individually and in combination. We observed that both pollutants alone increased LDH release 24 h post-exposure. Interestingly, we did observe via TEM that combined exposure to O3 and PM resulted in increased cellular penetration of PM particles. Furthermore, we found that levels of 4-hydroxy-nonenal (4HNE), a marker of oxidative damage, significantly increased 24 h post-exposure, in response to the combined pollutants. In addition, we observed increased levels of Nrf2, in response to the combined pollutants vs. either pollutant, although this effect was not followed by the increase in Nrf2-responsive genes expression HO1, SOD1, GPX, or GR nor enzymatic activity. Despite these observations, our study suggests that O3 exposure facilitate the cellular penetration of the particles leading to an increased oxidative damage, and additive defensive response.
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Affiliation(s)
- Franco Cervellati
- Department of Biomedical and Specialist Surgical Sciences, University of Ferrara, Ferrara, Italy
| | - Brittany Woodby
- Animal Science Department, NC Research Campus Kannapolis, Plants for Human Health Institute, 600 Laureate Way, Kannapolis, NC, 28081, USA
| | - Mascia Benedusi
- Department of Biomedical and Specialist Surgical Sciences, University of Ferrara, Ferrara, Italy
| | - Francesca Ferrara
- Department of Biomedical and Specialist Surgical Sciences, University of Ferrara, Ferrara, Italy
- Animal Science Department, NC Research Campus Kannapolis, Plants for Human Health Institute, 600 Laureate Way, Kannapolis, NC, 28081, USA
| | - Anna Guiotto
- Animal Science Department, NC Research Campus Kannapolis, Plants for Human Health Institute, 600 Laureate Way, Kannapolis, NC, 28081, USA
| | - Giuseppe Valacchi
- Department of Biomedical and Specialist Surgical Sciences, University of Ferrara, Ferrara, Italy.
- Animal Science Department, NC Research Campus Kannapolis, Plants for Human Health Institute, 600 Laureate Way, Kannapolis, NC, 28081, USA.
- Department of Food and Nutrition, Kyung Hee University, Seoul, South Korea.
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He MZ, Kinney PL, Li T, Chen C, Sun Q, Ban J, Wang J, Liu S, Goldsmith J, Kioumourtzoglou MA. Short- and intermediate-term exposure to NO 2 and mortality: A multi-county analysis in China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114165. [PMID: 32097792 PMCID: PMC7220820 DOI: 10.1016/j.envpol.2020.114165] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 02/07/2020] [Accepted: 02/10/2020] [Indexed: 05/18/2023]
Abstract
Nitrogen dioxide (NO2) is a well-established traffic emissions tracer and has been associated with multiple adverse health outcomes. Short- and long-term exposure to NO2 has been studied and is well-documented in existing literature, but information on intermediate-term NO2 effects and mortality is lacking, despite biological plausibility. We obtained daily NO2 and mortality data from 42 counties in China from 2013 to 2015. Distributed-lag non-linear models were employed to investigate the relationship between non-accidental mortality and NO2 up to 30 days before the event, including PM2.5, temperature, relative humidity, and holidays as covariates in a random effects meta-analysis pooling county-specific estimates. We repeated the analysis for cardiovascular- and respiratory-related mortality, and explored sex-stratified associations. Per 10 μg/m3 increase in NO2, we estimated a 0.13% (95%CI: 0.03, 0.23%), 0.57% (95%CI: -0.04, 1.18%), and -0.14% (95%CI: -1.63, 1.37%) change in non-accidental mortality for same-day and previous-day NO2 (lag0-1 cumulated), in the preceding 7 days (lag0-7 cumulated), and in the preceding 30 days (lag0-30 cumulated), respectively. The strongest estimate was observed for respiratory-related mortality in the lag0-30 cumulated effect for women (3.12%; 95%CI: -1.66, 8.13%). We observed a trend of higher effect estimates of intermediate-term NO2 exposure on respiratory mortality compared to that of the short-term, although the differences were not statistically significant. Our results at longer lags for all-cause and cardiovascular mortality were sensitive to modeling choices. Future work should further investigate intermediate-term air pollution exposure given their potential biological relevance, but in larger scale settings.
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Affiliation(s)
- Mike Z He
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, 722 West 168th Street, New York, NY, 10032, USA
| | - Patrick L Kinney
- Department of Environmental Health, Boston University School of Public Health, 715 Albany Street, Talbot 4W, Boston, MA, 02118, USA
| | - Tiantian Li
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, No. 7 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China.
| | - Chen Chen
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, No. 7 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Qinghua Sun
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, No. 7 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Jie Ban
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, No. 7 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Jiaonan Wang
- National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, No. 7 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Siliang Liu
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, 722 West 168th Street, New York, NY, 10032, USA
| | - Jeff Goldsmith
- Department of Biostatistics, Columbia University Mailman School of Public Health, 722 West 168th Street, New York, NY, 10032, USA
| | - Marianthi-Anna Kioumourtzoglou
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, 722 West 168th Street, New York, NY, 10032, USA
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Birukova A, Cyphert-Daly J, Cumming RI, Yu YR, Gowdy KM, Que LG, Tighe RM. Sex Modifies Acute Ozone-Mediated Airway Physiologic Responses. Toxicol Sci 2020; 169:499-510. [PMID: 30825310 DOI: 10.1093/toxsci/kfz056] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Sex differences clearly exist in incidence, susceptibility, and severity of airway disease and in pulmonary responses to air pollutants such as ozone (O3). Prior rodent O3 exposure studies demonstrate sex-related differences in the expression of lung inflammatory mediators and signaling. However, whether or not sex modifies O3-induced airway physiologic responses remains less explored. To address this, we exposed 8- to 10-week-old male and female C57BL/6 mice to either 1 or 2 ppm O3 or filtered air (FA) for 3 h. At 12, 24, 48, and 72 h following exposure, we assessed airway hyperresponsiveness to methacholine (MCh), bronchoalveolar lavage fluid cellularity, cytokines and total protein/albumin, serum progesterone, and whole lung immune cells by flow cytometry. Male mice generated consistent airway hyperresponsiveness to MCh at all time points following exposure. Alternatively, females had less consistent airway physiologic responses to MCh, which were more variable between individual experiments and did not correlate with serum progesterone levels. Bronchoalveolar lavage fluid total cells peaked at 12 h and were persistently elevated through 72 h. At 48 h, bronchoalveolar lavage cells were greater in females versus males. Bronchoalveolar lavage fluid cytokines and total protein/albumin increased following O3 exposure without sex differences. Flow cytometry of whole lung tissue identified dynamic O3-induced immune cell changes also independent of sex. Our results indicate sex differences in acute O3-induced airway physiology responses and airspace influx without significant difference in other injury and inflammation measures. This study highlights the importance of considering sex as a biological variable in acute O3-induced airway physiology responses.
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Affiliation(s)
| | | | | | - Yen-Rei Yu
- Department of Medicine, Duke University, Durham, North Carolina 27710
| | - Kymberly M Gowdy
- Department of Pharmacology and Toxicology, East Carolina University, Greenville, North Carolina 27858
| | - Loretta G Que
- Department of Medicine, Duke University, Durham, North Carolina 27710
| | - Robert M Tighe
- Department of Medicine, Duke University, Durham, North Carolina 27710
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Pandit P, Perez RL, Roman J. Sex-Based Differences in Interstitial Lung Disease. Am J Med Sci 2020; 360:467-473. [PMID: 32487327 DOI: 10.1016/j.amjms.2020.04.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/18/2020] [Accepted: 04/18/2020] [Indexed: 12/16/2022]
Abstract
Interstitial lung diseases comprise a family of progressive pulmonary disorders that are often idiopathic or associated with various systemic diseases and that is characterized by bilateral lung involvement with inflammation and tissue remodeling or fibrosis. The impact of sex, including the anatomic and physiologic traits that one is born with, on the development and progression of interstitial lung diseases is not entirely clear. Variances between men and women are driven by differences in male and female biology and sex hormones, among other differences, but their role remains uncertain. In this review, we summarize sex-related differences in the epidemiology and progression of certain interstitial lung diseases with a focus on the connective tissue related interstitial lung diseases, idiopathic pulmonary fibrosis, and sarcoidosis. We also discuss cellular and pre-clinical studies that might shed light on the potential mechanisms responsible for these differences in the hope of unveiling potential targets for intervention and stimulating research in this needed field of investigation.
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Affiliation(s)
- Pooja Pandit
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care, Sidney Kimmel College of Medicine; Jane & Leonard Korman Respiratory Institute, Jefferson Health, Thomas Jefferson University, 834 Walnut St, Philadelphia, PA 19107 USA
| | - Rafael L Perez
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care, Sidney Kimmel College of Medicine; Jane & Leonard Korman Respiratory Institute, Jefferson Health, Thomas Jefferson University, 834 Walnut St, Philadelphia, PA 19107 USA
| | - Jesse Roman
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care, Sidney Kimmel College of Medicine; Jane & Leonard Korman Respiratory Institute, Jefferson Health, Thomas Jefferson University, 834 Walnut St, Philadelphia, PA 19107 USA.
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