1
|
Dama G, Xue C, Zhang Y, Li D, Fan J, Qiao L, Xu Z, Yang C, Liu Y, Abdullah MFILB, Lin J. CD34 + stromal cells/telocytes and their role in mouse lung development: Light microscopy, immunofluorescence, ultrastructural and scanning electron microscopy evidence. Cell Biol Int 2024. [PMID: 39099163 DOI: 10.1002/cbin.12223] [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: 01/08/2024] [Revised: 06/25/2024] [Accepted: 07/03/2024] [Indexed: 08/06/2024]
Abstract
Telocytes (TCs), a novel type of mesenchymal or interstitial cell with specific, very long and thin cellular prolongations, have been found in various mammalian organs and have potential biological functions. However, their existence during lung development is poorly understood. This study aimed to investigate the existence, morphological features, and role of CD34+ SCs/TCs in mouse lungs from foetal to postnatal life using primary cell culture, double immunofluorescence, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The immunofluorescence double staining profiles revealed positive expression of CD34 and PDGFR-α, Sca-1 or VEGFR-3, and the expression of these markers differed among the age groups during lung development. Intriguingly, in the E18.5 stage of development, along with the CD34+ SCs/TCs, haematopoietic stem cells and angiogenic factors were also significantly increased in number compared with those in the E14.5, E16.5, P0 and P7. Subsequently, TEM confirmed that CD34+ SCs/TCs consisted of a small cell body with long telopodes (Tps) that projected from the cytoplasm. Tps consisted of alternating thin and thick segments known as podomers and podoms. TCs contain abundant endoplasmic reticulum, mitochondria and secretory vesicles and establish close connections with neighbouring cells. Furthermore, SEM revealed characteristic features, including triangular, oval, spherical, or fusiform cell bodies with extensive cellular prolongations, depending on the number of Tps. Our findings provide evidence for the existence of CD34+ SCs/TCs, which contribute to vasculogenesis, the formation of the air‒blood barrier, tissue organization during lung development and homoeostasis.
Collapse
Affiliation(s)
- Ganesh Dama
- Stem Cell and Biotherapy Engineering Research Center of Henan, Henan Joint International Research Laboratory of Stem Cell Medicine, Xinxiang Medical University, Xinxiang, Henan, China
- Department of Community Health, Advanced Medical and Dental Institute (IPPT), Universiti Sains Malaysia, Kepala Batas, Pulau Pinang, Malaysia
| | - Chengu Xue
- Stem Cell and Biotherapy Engineering Research Center of Henan, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan, China
| | - Yangxia Zhang
- Stem Cell and Biotherapy Engineering Research Center of Henan, School of Medical Engineering, Xinxiang Medical University, Xinxiang, Henan, China
| | - Dezhuang Li
- Stem Cell and Biotherapy Engineering Research Center of Henan, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan, China
| | - Jinyu Fan
- Stem Cell and Biotherapy Engineering Research Center of Henan, Henan Joint International Research Laboratory of Stem Cell Medicine, Xinxiang Medical University, Xinxiang, Henan, China
- Stem Cell and Biotherapy Engineering Research Center of Henan, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan, China
| | - Liang Qiao
- Stem Cell and Biotherapy Engineering Research Center of Henan, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan, China
| | - Zhihao Xu
- Stem Cell and Biotherapy Engineering Research Center of Henan, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan, China
| | - Ciqing Yang
- Stem Cell and Biotherapy Engineering Research Center of Henan, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan, China
| | - Yanli Liu
- Stem Cell and Biotherapy Engineering Research Center of Henan, Henan Joint International Research Laboratory of Stem Cell Medicine, Xinxiang Medical University, Xinxiang, Henan, China
- Stem Cell and Biotherapy Engineering Research Center of Henan, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan, China
| | | | - Juntang Lin
- Stem Cell and Biotherapy Engineering Research Center of Henan, Henan Joint International Research Laboratory of Stem Cell Medicine, Xinxiang Medical University, Xinxiang, Henan, China
- Stem Cell and Biotherapy Engineering Research Center of Henan, School of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, Henan, China
- Stem Cell and Biotherapy Engineering Research Center of Henan, School of Medical Engineering, Xinxiang Medical University, Xinxiang, Henan, China
| |
Collapse
|
2
|
Dharmage SC, Faner R, Agustí A. Treatable traits in pre-COPD: Time to extend the treatable traits paradigm beyond established disease. Respirology 2024; 29:551-562. [PMID: 38862131 DOI: 10.1111/resp.14760] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 05/15/2024] [Indexed: 06/13/2024]
Abstract
To date, the treatable traits (TTs) approach has been applied in the context of managing diagnosed diseases. TTs are clinical characteristics and risk factors that can be identified clinically and/or biologically, and that merit treatment if present. There has been an exponential increase in the uptake of this approach by both researchers and clinicians. Realizing the potential of the TTs approach to pre-clinical disease, this expert review proposes that it is timely to consider acting on TTs present before a clinical diagnosis is made, which might help to prevent development of the full disease. Such an approach is ideal for diseases where there is a long pre-clinical phase, such as in chronic obstructive pulmonary disease (COPD). The term 'pre-COPD' has been recently proposed to identify patients with respiratory symptoms and/or structural or functional abnormalities without airflow limitation. They may eventually develop airflow limitation with time but patients with pre-COPD are likely to have traits that are already treatable. This review first outlines the contribution of recently generated knowledge into lifetime lung function trajectories and the conceptual framework of 'GETomics' to the field of pre-COPD. GETomics is a dynamic and cumulative model of interactions between genes and the environment throughout the lifetime that integrates information from multi-omics to understand aetiology and mechanisms of diseases. This review then discusses the current evidence on potential TTs in pre-COPD patients and makes recommendations for practice and future research. At a broader level, this review proposes that introducing the TTs in pre-COPD may help reenergize the preventive approaches to health and diseases.
Collapse
Affiliation(s)
- Shyamali C Dharmage
- Allergy and Lung Health Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Rosa Faner
- Universitat de Barcelona, Biomedicine Department. Immunology Unit, Barcelona, Spain
- Fundació Clinic per a la Recerca Biomedica (FCRB-IDIBAPS), Institut Investigacions Biomediques, Barcelona, Spain
- Consorcio Investigacion Biomedica en Red (CIBER) ENfermedades Respiratorias, Barcelona, Spain
| | - Alvar Agustí
- Fundació Clinic per a la Recerca Biomedica (FCRB-IDIBAPS), Institut Investigacions Biomediques, Barcelona, Spain
- Consorcio Investigacion Biomedica en Red (CIBER) ENfermedades Respiratorias, Barcelona, Spain
- Cathedra Salud Respiratoria, Department of Medicine, University of Barcelona, Barcelona, Spain
- Pulmonary Division, Respiratory Institute, Clinic Barcelona, Barcelona, Spain
| |
Collapse
|
3
|
Chang AB, Dharmage SC, Marchant JM, McCallum GB, Morris PS, Schultz A, Toombs M, Wurzel DF, Yerkovich ST, Grimwood K. Improving the Diagnosis and Treatment of Paediatric Bronchiectasis Through Research and Translation. Arch Bronconeumol 2024; 60:364-373. [PMID: 38548577 DOI: 10.1016/j.arbres.2024.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/02/2024] [Accepted: 03/04/2024] [Indexed: 06/05/2024]
Abstract
Bronchiectasis, particularly in children, is an increasingly recognised yet neglected chronic lung disorder affecting individuals in both low-to-middle and high-income countries. It has a high disease burden and there is substantial inequity within and between settings. Furthermore, compared with other chronic lung diseases, considerably fewer resources are available for children with bronchiectasis. The need to prevent bronchiectasis and to reduce its burden also synchronously aligns with its high prevalence and economic costs to health services and society. Like many chronic lung diseases, bronchiectasis often originates early in childhood, highlighting the importance of reducing the disease burden in children. Concerted efforts are therefore needed to improve disease detection, clinical management and equity of care. Modifiable factors in the causal pathways of bronchiectasis, such as preventing severe and recurrent lower respiratory infections should be addressed, whilst also acknowledging the role played by social determinants of health. Here, we highlight the importance of early recognition/detection and optimal management of bronchiectasis in children, and outline our research, which is attempting to address important clinical knowledge gaps discussed in a recent workshop. The research is grouped under three themes focussing upon primary prevention, improving diagnosis and disease characterisation, and providing better management. Our hope is that others in multiple settings will undertake additional studies in this neglected field to further improve the lives of people with bronchiectasis. We also provide a resource list with links to help inform consumers and healthcare professionals about bronchiectasis and its recognition and management.
Collapse
Affiliation(s)
- Anne B Chang
- Australian Centre for Health Services Innovation, Queensland University of Technology, Brisbane, QLD, Australia; NHMRC Centre for Research Excellence in Paediatric Bronchiectasis (AusBREATHE), Child and Maternal Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, NT, Australia.
| | - Shyamali C Dharmage
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Julie M Marchant
- Australian Centre for Health Services Innovation, Queensland University of Technology, Brisbane, QLD, Australia
| | - Gabrielle B McCallum
- NHMRC Centre for Research Excellence in Paediatric Bronchiectasis (AusBREATHE), Child and Maternal Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, NT, Australia
| | - Peter S Morris
- NHMRC Centre for Research Excellence in Paediatric Bronchiectasis (AusBREATHE), Child and Maternal Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, NT, Australia; Department of Paediatrics, Royal Darwin Hospital, Darwin, NT, Australia
| | - Andre Schultz
- Wal-yan Respiratory Research Centre, Telethon Kids Institute and Division of Paediatrics, Faculty of Medicine, University of Western Australia, Perth, WA, Australia; Department of Respiratory Medicine, Perth Children's Hospital, Perth, WA, Australia
| | - Maree Toombs
- NHMRC Centre for Research Excellence in Paediatric Bronchiectasis (AusBREATHE), Child and Maternal Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, NT, Australia; School of Public Health, University of Sydney, Sydney, NSW, Australia
| | - Danielle F Wurzel
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Stephanie T Yerkovich
- Australian Centre for Health Services Innovation, Queensland University of Technology, Brisbane, QLD, Australia; NHMRC Centre for Research Excellence in Paediatric Bronchiectasis (AusBREATHE), Child and Maternal Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, NT, Australia
| | - Keith Grimwood
- Departments of Infectious Disease and Paediatrics, Gold Coast Health, Gold Coast, QLD, Australia; School of Medicine and Dentistry, Griffith University, Gold Coast, QLD, Australia
| |
Collapse
|
4
|
Zazara DE, Giannou O, Schepanski S, Pagenkemper M, Giannou AD, Pincus M, Belios I, Bonn S, Muntau AC, Hecher K, Diemert A, Arck PC. Fetal lung growth predicts the risk for early-life respiratory infections and childhood asthma. World J Pediatr 2024; 20:481-495. [PMID: 38261172 PMCID: PMC11136800 DOI: 10.1007/s12519-023-00782-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 11/29/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND Early-life respiratory infections and asthma are major health burdens during childhood. Markers predicting an increased risk for early-life respiratory diseases are sparse. Here, we identified the predictive value of ultrasound-monitored fetal lung growth for the risk of early-life respiratory infections and asthma. METHODS Fetal lung size was serially assessed at standardized time points by transabdominal ultrasound in pregnant women participating in a pregnancy cohort. Correlations between fetal lung growth and respiratory infections in infancy or early-onset asthma at five years were examined. Machine-learning models relying on extreme gradient boosting regressor or classifier algorithms were developed to predict respiratory infection or asthma risk based on fetal lung growth. For model development and validation, study participants were randomly divided into a training and a testing group, respectively, by the employed algorithm. RESULTS Enhanced fetal lung growth throughout pregnancy predicted a lower early-life respiratory infection risk. Male sex was associated with a higher risk for respiratory infections in infancy. Fetal lung growth could also predict the risk of asthma at five years of age. We designed three machine-learning models to predict the risk and number of infections in infancy as well as the risk of early-onset asthma. The models' R2 values were 0.92, 0.90 and 0.93, respectively, underscoring a high accuracy and agreement between the actual and predicted values. Influential variables included known risk factors and novel predictors, such as ultrasound-monitored fetal lung growth. CONCLUSION Sonographic monitoring of fetal lung growth allows to predict the risk for early-life respiratory infections and asthma.
Collapse
Affiliation(s)
- Dimitra E Zazara
- Division for Experimental Feto-Maternal Medicine, Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße 52, 20251, Hamburg, Germany
- University Children's Hospital, UKE, Hamburg, Germany
| | - Olympia Giannou
- Computer Engineering and Informatics Department, Polytechnic School, University of Patras, Patras, Greece
| | - Steven Schepanski
- Division for Experimental Feto-Maternal Medicine, Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße 52, 20251, Hamburg, Germany
- Institute of Developmental Neurophysiology, Center for Molecular Neurobiology Hamburg (ZMNH), UKE, Hamburg, Germany
| | | | - Anastasios D Giannou
- Department of General, Visceral and Thoracic Surgery, UKE, Hamburg, Germany
- Section of Molecular Immunology and Gastroenterology, I. Department of Medicine, UKE, Hamburg, Germany
| | - Maike Pincus
- Pediatrics and Pediatric Pneumology Practice, Berlin, Germany
| | - Ioannis Belios
- Division for Experimental Feto-Maternal Medicine, Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße 52, 20251, Hamburg, Germany
| | - Stefan Bonn
- Institute of Medical Systems Biology, ZMNH, UKE, Hamburg, Germany
- Hamburg Center for Translational Immunology, UKE, Hamburg, Germany
| | - Ania C Muntau
- University Children's Hospital, UKE, Hamburg, Germany
| | - Kurt Hecher
- Department of Obstetrics and Fetal Medicine, UKE, Hamburg, Germany
| | - Anke Diemert
- Department of Obstetrics and Fetal Medicine, UKE, Hamburg, Germany
| | - Petra Clara Arck
- Division for Experimental Feto-Maternal Medicine, Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße 52, 20251, Hamburg, Germany.
- Hamburg Center for Translational Immunology, UKE, Hamburg, Germany.
| |
Collapse
|
5
|
Li Y, Zhu L, Wei J, Wu C, Zhao Z, Norbäck D, Zhang X, Lu C, Yu W, Wang T, Zheng X, Zhang L, Zhang Y. Intrauterine and early postnatal exposures to submicron particulate matter and childhood allergic rhinitis: A multicity cross-sectional study in China. ENVIRONMENTAL RESEARCH 2024; 247:118165. [PMID: 38215923 DOI: 10.1016/j.envres.2024.118165] [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: 09/30/2023] [Revised: 12/11/2023] [Accepted: 01/08/2024] [Indexed: 01/14/2024]
Abstract
BACKGROUND Airborne particulate matter pollution has been linked to occurrence of childhood allergic rhinitis (AR). However, the relationships between exposure to particulate matter with an aerodynamic diameter ≤1 μm (PM1) during early life (in utero and first year of life) and the onset of childhood AR remain largely unknown. This study aims to investigate potential associations of in utero and first-year exposures to size-segregated PMs, including PM1, PM1-2.5, PM2.5, PM2.5-10, and PM10, with childhood AR. METHODS We investigated 29286 preschool children aged 3-6 years in 7 Chinese major cities during 2019-2020 as the Phase II of the China Children, Families, Health Study. Machine learning-based space-time models were utilized to estimate early-life residential exposure to PM1, PM2.5, and PM10 at 1 × 1-km resolutions. The concentrations of PM1-2.5 and PM2.5-10 were calculated by subtracting PM1 from PM2.5 and PM2.5 from PM10, respectively. Multiple mixed-effects logistic models were used to assess the odds ratios (ORs) and 95% confidence intervals (CIs) of childhood AR associated with per 10-μg/m3 increase in exposure to particulate air pollution during in utero period and the first year of life. RESULTS Among the 29286 children surveyed (mean ± standard deviation, 4.9 ± 0.9 years), 3652 (12.5%) were reported to be diagnosed with AR. Average PM1 concentrations during in utero period and the first year since birth were 36.3 ± 8.6 μg/m3 and 33.1 ± 6.9 μg/m3, respectively. Exposure to PM1 and PM2.5 during pregnancy and the first year of life was associated with an increased risk of AR in children, and the OR estimates were higher for each 10-μg/m3 increase in PM1 than for PM2.5 (e.g., 1.132 [95% CI: 1.022-1.254] vs. 1.079 [95% CI: 1.014-1.149] in pregnancy; 1.151 [95% CI: 1.014-1.306] vs. 1.095 [95% CI: 1.008-1.189] in the first year of life). No associations were observed between AR and both pre- and post-natal exposure to PM1-2.5, indicating that PM1 rather than PM1-2.5 contributed to the association between PM2.5 and childhood AR. In trimester-stratified analysis, childhood AR was only found to be associated with exposure to PM1 (OR = 1.077, 95% CI: 1.027-1.128), PM2.5 (OR = 1.048, 95% CI: 1.018-1.078), and PM10 (OR = 1.032, 95% CI: 1.007-1.058) during the third trimester of pregnancy. Subgroup analysis suggested stronger PM-AR associations among younger (<5 years old) and winter-born children. CONCLUSIONS Prenatal and postnatal exposures to ambient PM1 and PM2.5 were associated with an increased risk of childhood AR, and PM2.5-related hazards could be predominantly attributed to PM1. These findings highlighted public health significance of formulating air quality guideline for ambient PM1 in mitigating children's AR burden caused by particulate air pollution.
Collapse
Affiliation(s)
- Yachen Li
- Institute of Social Development and Health Management, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Lifeng Zhu
- Institute of Social Development and Health Management, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Jing Wei
- Department of Atmospheric and Oceanic Science, Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD 20740, USA
| | - Chuansha Wu
- Department of Environmental Hygiene and Occupational Medicine, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Zhuohui Zhao
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200030, China
| | - Dan Norbäck
- Department of Medical Sciences, Uppsala University, Uppsala SE 75185, Sweden
| | - Xin Zhang
- Research Centre for Environmental Science and Engineering, Shanxi University, Taiyuan 030006, China
| | - Chan Lu
- Department of Occupational and Environmental Health, School of Public Health, Xiangya Medical College, Central South University, Changsha 410078, China
| | - Wei Yu
- Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), Chongqing University, Chongqing 400045, China
| | - Tingting Wang
- School of Nursing and Health Management, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Xiaohong Zheng
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Ling Zhang
- Department of Environmental Hygiene and Occupational Medicine, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China.
| | - Yunquan Zhang
- Institute of Social Development and Health Management, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China.
| |
Collapse
|
6
|
Yaremenko AV, Pechnikova NA, Porpodis K, Damdoumis S, Aggeli A, Theodora P, Domvri K. Association of Fetal Lung Development Disorders with Adult Diseases: A Comprehensive Review. J Pers Med 2024; 14:368. [PMID: 38672994 PMCID: PMC11051200 DOI: 10.3390/jpm14040368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 03/24/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
Fetal lung development is a crucial and complex process that lays the groundwork for postnatal respiratory health. However, disruptions in this delicate developmental journey can lead to fetal lung development disorders, impacting neonatal outcomes and potentially influencing health outcomes well into adulthood. Recent research has shed light on the intriguing association between fetal lung development disorders and the development of adult diseases. Understanding these links can provide valuable insights into the developmental origins of health and disease, paving the way for targeted preventive measures and clinical interventions. This review article aims to comprehensively explore the association of fetal lung development disorders with adult diseases. We delve into the stages of fetal lung development, examining key factors influencing fetal lung maturation. Subsequently, we investigate specific fetal lung development disorders, such as respiratory distress syndrome (RDS), bronchopulmonary dysplasia (BPD), congenital diaphragmatic hernia (CDH), and other abnormalities. Furthermore, we explore the potential mechanisms underlying these associations, considering the role of epigenetic modifications, transgenerational effects, and intrauterine environmental factors. Additionally, we examine the epidemiological evidence and clinical findings linking fetal lung development disorders to adult respiratory diseases, including asthma, chronic obstructive pulmonary disease (COPD), and other respiratory ailments. This review provides valuable insights for healthcare professionals and researchers, guiding future investigations and shaping strategies for preventive interventions and long-term care.
Collapse
Affiliation(s)
- Alexey V. Yaremenko
- Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Oncology Unit, Pulmonary Department, George Papanikolaou Hospital, School of Medicine, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece; (K.P.); (S.D.)
| | - Nadezhda A. Pechnikova
- Laboratory of Chemical Engineering A’, School of Chemical Engineering, Faculty of Engineering, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece; (N.A.P.); (A.A.)
- Saint Petersburg Pasteur Institute, Saint Petersburg 197101, Russia
| | - Konstantinos Porpodis
- Oncology Unit, Pulmonary Department, George Papanikolaou Hospital, School of Medicine, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece; (K.P.); (S.D.)
| | - Savvas Damdoumis
- Oncology Unit, Pulmonary Department, George Papanikolaou Hospital, School of Medicine, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece; (K.P.); (S.D.)
| | - Amalia Aggeli
- Laboratory of Chemical Engineering A’, School of Chemical Engineering, Faculty of Engineering, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece; (N.A.P.); (A.A.)
| | - Papamitsou Theodora
- Laboratory of Histology-Embryology, School of Medicine, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece;
| | - Kalliopi Domvri
- Oncology Unit, Pulmonary Department, George Papanikolaou Hospital, School of Medicine, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece; (K.P.); (S.D.)
- Laboratory of Histology-Embryology, School of Medicine, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece;
- Pathology Department, George Papanikolaou Hospital, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece
| |
Collapse
|
7
|
Xu M, Shao M, Chen Y, Liu C. Early life exposure to particulate matter and childhood asthma in Beijing, China: a case-control study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:526-534. [PMID: 36473101 DOI: 10.1080/09603123.2022.2154327] [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: 08/18/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
A case-control study was conducted to examine the association of particulate matter exposure during the pre-natal (the first, second, and third trimesters. and the whole pregnancy) and post-natal periods (the first year after birth) with childhood asthma in Beijing, China. Multivariable logistic regressions showed that childhood asthma was significantly associated with exposures to PM2.5 and PM10 during the entire pregnancy, with ORs of 1.28(95%CI:1.06-1.56) and 1.21(95%CI:1.02-1.42), respectively. The highest association with a 10 μg/m3 increase in PM2.5 and PM10 were both seen for the second trimester, with ORs of 1.17(95% CI: 1.05-1.30) and 1.14(95% CI: 1.04-1.24). Subgroup analyses suggested that significant and positive effects were subject to be observed in children with a family history of atopy. This study added evidence that exposures to PM2.5 and PM10 during pregnancy might increase the risk of childhood asthma in seriously polluted area, highlighting stronger associations in the second trimester.
Collapse
Affiliation(s)
- Meimei Xu
- Institute of Medical Information, Chinese Academy of Medical Sciences, Beijing, China
| | - Mingjun Shao
- Department of Allergy, Affiliated Children's Hospital of Capital Institute of Pediatrics, Beijing, China
| | - Yuzhi Chen
- Department of Allergy, Affiliated Children's Hospital of Capital Institute of Pediatrics, Beijing, China
| | - Chuanhe Liu
- Department of Allergy, Affiliated Children's Hospital of Capital Institute of Pediatrics, Beijing, China
| |
Collapse
|
8
|
Koenen MH, van Montfrans JM, Prevaes SMPJ, van Engelen MP, van der Vries E, Boes M, Sanders EAM, Bogaert D, Verhagen LM. Antibody deficiencies in children are associated with prematurity and a family history of infections. Pediatr Res 2023; 94:2047-2053. [PMID: 37491587 DOI: 10.1038/s41390-023-02725-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/18/2023] [Accepted: 06/15/2023] [Indexed: 07/27/2023]
Abstract
BACKGROUND Recurrent respiratory tract infections (rRTIs) frequently affect young children and are associated with antibody deficiencies. We investigated the prevalence of and epidemiological risk factors associated with antibody deficiencies in young children with rRTIs and their progression over time, and linked these to prospectively measured RTI symptoms. METHODS We included children <7 years with rRTIs in a prospective cohort study. Patient characteristics associated with antibody deficiencies were identified using multivariable logistic regression analysis. RESULTS We included 146 children with a median age of 3.1 years. Daily RTI symptoms were monitored in winter in n = 73 children and repeated immunoglobulin level measurements were performed in n = 45 children. Antibody deficiency was diagnosed in 56% and associated with prematurity (OR 3.17 [1.15-10.29]) and a family history of rRTIs (OR 2.37 [1.11-5.15]). Respiratory symptoms did not differ between children with and without antibody deficiencies. During follow-up, antibody deficiency diagnosis remained unchanged in 67%, while 18% of children progressed to a more severe phenotype. CONCLUSION Immune maturation and genetic predisposition may lie at the basis of antibody deficiencies commonly observed in early life. Because disease severity did not differ between children with and without antibody deficiency, we suggest symptom management can be similar for all children with rRTIs. IMPACT An antibody deficiency was present in 56% of children <7 years with recurrent respiratory tract infections (rRTIs) in a Dutch tertiary hospital setting. Prematurity and a family history of rRTIs were associated with antibody deficiencies, suggesting that immune maturation and genetic predisposition may lie at the basis of antibody deficiencies in early life. RTI symptoms did not differ between children with and without antibody deficiency, suggesting that symptom management can be similar for all children with rRTIs, irrespective of humoral immunological deficiencies. During follow-up, 18% of children progressed to a more severe phenotype, emphasizing that early diagnosis is warranted to prevent long-term morbidity and increase quality of life.
Collapse
Affiliation(s)
- Mischa H Koenen
- Center of Translational Immunology, UMC Utrecht, Utrecht, The Netherlands
- Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, The Netherlands
| | - Joris M van Montfrans
- Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, The Netherlands
| | - Sabine M P J Prevaes
- Department of Pediatric Pulmonology, Wilhelmina Children's Hospital, Utrecht, The Netherlands
| | | | - Erhard van der Vries
- Department of Research & Development, GD Animal Health, Deventer, The Netherlands
- Department of Clinical Chemistry and Hematology, UMC Utrecht, Utrecht, The Netherlands
| | - Marianne Boes
- Center of Translational Immunology, UMC Utrecht, Utrecht, The Netherlands
- Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, The Netherlands
| | - Elisabeth A M Sanders
- Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, The Netherlands
- Center for Infectious Disease Control, National Institute of Public Health and the Environment, Bilthoven, The Netherlands
| | - Debby Bogaert
- Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, The Netherlands
- Center for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Lilly M Verhagen
- Department of Pediatric Infectious Diseases and Immunology, Wilhelmina Children's Hospital, Utrecht, The Netherlands.
- Department of Pediatric Infectious Diseases and Immunology, Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands.
- Department of Laboratory Medicine, Laboratory of Medical Immunology, Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, The Netherlands.
| |
Collapse
|
9
|
Belgacemi R, Cherry C, El Alam I, Frauenpreis A, Glass I, Bellusci S, Danopoulos S, Al Alam D. Preferential FGF18/FGFR activity in pseudoglandular versus canalicular stage human lung fibroblasts. Front Cell Dev Biol 2023; 11:1220002. [PMID: 37701781 PMCID: PMC10493313 DOI: 10.3389/fcell.2023.1220002] [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: 05/10/2023] [Accepted: 07/17/2023] [Indexed: 09/14/2023] Open
Abstract
Fibroblast growth factor (FGF) signaling is necessary for proper lung branching morphogenesis, alveolarization, and vascular development. Dysregulation of FGF activity has been implicated in various lung diseases. Recently, we showed that FGF18 promotes human lung branching morphogenesis by regulating mesenchymal progenitor cells. However, the underlying mechanisms remain unclear. Thus, we aimed to determine the role of FGF18 and its receptors (FGFR) in regulating mesenchymal cell proliferation, migration, and differentiation from pseudoglandular to canalicular stage. We performed siRNA assays to identify the specific FGFR(s) associated with FGF18-induced biological processes. We found that FGF18 increased proliferation and migration in human fetal lung fibroblasts (HFLF) from both stages. FGFR2/FGFR4 played a significant role in pseudoglandular stage. HFLF proliferation, while FGFR3/FGFR4 were involved in canalicular stage. FGF18 enhanced HFLF migration through FGFR2 and FGFR4 in pseudoglandular and canalicular stage, respectively. Finally, we provide evidence that FGF18 treatment leads to reduced expression of myofibroblast markers (ACTA2 and COL1A1) and increased expression of lipofibroblast markers (ADRP and PPARγ) in both stages HFLF. However, the specific FGF18/FGFR complex involved in this process varies depending on the stage. Our findings suggest that in context of human lung development, FGF18 tends to associate with distinct FGFRs to initiate specific biological processes on mesenchymal cells.
Collapse
Affiliation(s)
- Randa Belgacemi
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Caroline Cherry
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Imad El Alam
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Andrew Frauenpreis
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Ian Glass
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, United States
| | - Saverio Bellusci
- Excellence Cluster Cardio-Pulmonary System (ECCPS), Universities of Giessen and Marburg Lung Center (UG-MLC), Justus-Liebig-University Giessen, German Center for Lung Research (DZL), Giessen, Germany
| | - Soula Danopoulos
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
- Department of Pediatrics, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| | - Denise Al Alam
- Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
- Department of Pediatrics, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States
| |
Collapse
|
10
|
Nourian Z, Hong K, Li M, Castorena-Gonzalez JA, Martinez-Lemus LA, Clifford PS, Meininger GA, Hill MA. Postnatal development of extracellular matrix and vascular function in small arteries of the rat. Front Pharmacol 2023; 14:1210128. [PMID: 37649891 PMCID: PMC10464837 DOI: 10.3389/fphar.2023.1210128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 08/02/2023] [Indexed: 09/01/2023] Open
Abstract
Introduction: Vascular extracellular matrix (ECM) is dominated by elastic fibers (elastin with fibrillin-rich microfibrils) and collagens. Current understanding of ECM protein development largely comes from studies of conduit vessels (e.g., aorta) while resistance vessel data are sparse. With an emphasis on elastin, we examined whether changes in postnatal expression of arteriolar wall ECM would correlate with development of local vasoregulatory mechanisms such as the myogenic response and endothelium-dependent dilation. Methods: Rat cerebral and mesenteric arteries were isolated at ages 3, 7, 11, 14, 19 days, 2 months, and 2 years. Using qPCR mRNA expression patterns were examined for elastin, collagen types I, II, III, IV, fibrillin-1, and -2, lysyl oxidase (LOX), and transglutaminase 2. Results: Elastin, LOX and fibrillar collagens I and III mRNA peaked at day 11-14 in both vasculatures before declining at later time-points. 3D confocal imaging for elastin showed continuous remodeling in the adventitia and the internal elastic lamina for both cerebral and mesenteric vessels. Myogenic responsiveness in cannulated cerebral arteries was detectable at day 3 with constriction shifted to higher intraluminal pressures by day 19. Myogenic responsiveness of mesenteric vessels appeared fully developed by day 3. Functional studies were performed to investigate developmental changes in endothelial-dependent dilation. Endothelial-dependent dilation to acetylcholine was less at day 3 compared to day 19 and at day 3 lacked an endothelial-derived hyperpolarizing factor component that was evident at day 19. Conclusion: Collectively, in the rat small artery structural remodeling and aspects of functional control continue to develop in the immediate postnatal period.
Collapse
Affiliation(s)
- Zahra Nourian
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Medical Pharmacology and Physiology and University of Missouri, Columbia, MO, United States
| | - Kwangseok Hong
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Medical Pharmacology and Physiology and University of Missouri, Columbia, MO, United States
- Department of Physical Education, College of Education, Chung-Ang University, Seoul, Republic of Korea
| | - Min Li
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Medical Pharmacology and Physiology and University of Missouri, Columbia, MO, United States
| | - Jorge A. Castorena-Gonzalez
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Luis A. Martinez-Lemus
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Medical Pharmacology and Physiology and University of Missouri, Columbia, MO, United States
| | - Philip S. Clifford
- College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, United States
| | - Gerald A. Meininger
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Medical Pharmacology and Physiology and University of Missouri, Columbia, MO, United States
| | - Michael A. Hill
- Dalton Cardiovascular Research Center, Columbia, MO, United States
- Department of Medical Pharmacology and Physiology and University of Missouri, Columbia, MO, United States
| |
Collapse
|
11
|
Gonçalves AN, Moura RS, Correia-Pinto J, Nogueira-Silva C. Intraluminal chloride regulates lung branching morphogenesis: involvement of PIEZO1/PIEZO2. Respir Res 2023; 24:42. [PMID: 36740669 PMCID: PMC9901166 DOI: 10.1186/s12931-023-02328-2] [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: 04/30/2022] [Accepted: 01/13/2023] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Clinical and experimental evidence shows lung fluid volume as a modulator of fetal lung growth with important value in treating fetal lung hypoplasia. Thus, understanding the mechanisms underlying these morphological dynamics has been the topic of multiple investigations with, however, limited results, partially due to the difficulty of capturing or recapitulating these movements in the lab. In this sense, this study aims to establish an ex vivo model allowing the study of lung fluid function in branching morphogenesis and identify the subsequent molecular/ cellular mechanisms. METHODS Ex vivo lung explant culture was selected as a model to study branching morphogenesis, and intraluminal injections were performed to change the composition of lung fluid. Distinct chloride (Cl-) concentrations (5.8, 29, 143, and 715 mM) or Cl- channels inhibitors [antracene-9-carboxylic acid (A9C), cystic fibrosis transmembrane conductance regulator inhibitor172 (CFTRinh), and calcium-dependent Cl- channel inhibitorA01 (CaCCinh)] were injected into lung lumen at two timepoints, day0 (D0) and D2. At D4, morphological and molecular analyses were performed in terms of branching morphogenesis, spatial distribution (immunofluorescence), and protein quantification (western blot) of mechanoreceptors (PIEZO1 and PIEZO2), neuroendocrine (bombesin, ghrelin, and PGP9.5) and smooth muscle [alpha-smooth muscle actin (α-SMA) and myosin light chain 2 (MLC2)] markers. RESULTS For the first time, we described effective intraluminal injections at D0 and D2 and demonstrated intraluminal movements at D4 in ex vivo lung explant cultures. Through immunofluorescence assay in in vivo and ex vivo branching morphogenesis, we show that PGP9.5 colocalizes with PIEZO1 and PIEZO2 receptors. Fetal lung growth is increased at higher [Cl-], 715 mM Cl-, through the overexpression of PIEZO1, PIEZO2, ghrelin, bombesin, MLC2, and α-SMA. In contrast, intraluminal injection of CFTRinh or CaCCinh decreases fetal lung growth and the expression of PIEZO1, PIEZO2, ghrelin, bombesin, MLC2, and α-SMA. Finally, the inhibition of PIEZO1/PIEZO2 by GsMTx4 decreases branching morphogenesis and ghrelin, bombesin, MLC2, and α-SMA expression in an intraluminal injection-independent manner. CONCLUSIONS Our results identify PIEZO1/PIEZO2 expressed in neuroendocrine cells as a regulator of fetal lung growth induced by lung fluid.
Collapse
Affiliation(s)
- Ana N. Gonçalves
- grid.10328.380000 0001 2159 175XSchool of Medicine, Life and Health Sciences Research Institute (ICVS), University of Minho, Campus de Gualtar, Gualtar, 4710-057 Braga, Portugal ,grid.10328.380000 0001 2159 175XLife and Health Sciences Research Institute/3B’s-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rute S. Moura
- grid.10328.380000 0001 2159 175XSchool of Medicine, Life and Health Sciences Research Institute (ICVS), University of Minho, Campus de Gualtar, Gualtar, 4710-057 Braga, Portugal ,grid.10328.380000 0001 2159 175XLife and Health Sciences Research Institute/3B’s-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Jorge Correia-Pinto
- grid.10328.380000 0001 2159 175XSchool of Medicine, Life and Health Sciences Research Institute (ICVS), University of Minho, Campus de Gualtar, Gualtar, 4710-057 Braga, Portugal ,grid.10328.380000 0001 2159 175XLife and Health Sciences Research Institute/3B’s-PT Government Associate Laboratory, Braga/Guimarães, Portugal ,Department of Pediatric Surgery, Hospital de Braga, Braga, Portugal
| | - Cristina Nogueira-Silva
- School of Medicine, Life and Health Sciences Research Institute (ICVS), University of Minho, Campus de Gualtar, Gualtar, 4710-057, Braga, Portugal. .,Life and Health Sciences Research Institute/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal. .,Department of Obstetrics and Gynecology, Hospital de Braga, Braga, Portugal.
| |
Collapse
|
12
|
Quispe-Haro C, Pająk A, Tamosiunas A, Capkova N, Bobak M, Pikhart H. Socioeconomic position over the life course and impaired lung function of older adults in Central and Eastern Europe: the HAPIEE study. J Epidemiol Community Health 2022; 77:jech-2022-219348. [PMID: 36323503 PMCID: PMC9763222 DOI: 10.1136/jech-2022-219348] [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: 05/28/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Social differences in lung functioning have been reported, but the role of socioeconomic position (SEP) at different stages of life is less well understood, particularly in Central and Eastern Europe. This study addressed this question. METHODS The analysis included 10 160 individuals aged 45-70 years from the Czech Republic, Poland and Lithuania. Lung function was either normal if values of forced expiratory volume in the first second divided by forced vital capacity (FEV1/FVC) and FVC were higher than the lower limit of normality or impaired if otherwise. SEP at three stages of life was assessed using maternal education (childhood), participant's education (young adulthood), and current ability to pay for food, clothes and bills (late adulthood). SEP measures were dichotomised as advantaged versus disadvantaged. The associations between impaired lung function and life-course SEP were estimated by logistic regression. RESULTS Disadvantaged SEP in young and late adulthood had higher odds of impaired lung function. In young adulthood, age-adjusted ORs were 1.26 (95% CI 1.06 to 1.49) in men and 1.56 (95% CI 1.29 to 1.88) in women, while in late adulthood, the ORs were 1.15 (95% CI 0.99 to 1.34) in men and 1.26 (95% CI 1.09 to 1.46) in women. Men and women disadvantaged at all three stages of life had ORs of 1.42 (95% CI 1.06 to 1.91) and 1.83 (95% CI 1.32 to 2.52), respectively, compared with those always advantaged. Smoking substantially attenuated the ORs in men but not in women. CONCLUSION Reducing socioeconomic inequalities in young and late adulthood may contribute to reducing the risk of impaired lung function in late adulthood.
Collapse
Affiliation(s)
- Consuelo Quispe-Haro
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
| | - Andrzej Pająk
- Department of Epidemiology and Population Sciences, Institute of Public Health, Jagiellonian University Medical College, Krakow, Poland
| | - Abdonas Tamosiunas
- Laboratory of Population Research, Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | | | - Martin Bobak
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
- Research Department of Epidemiology and Public Health, University College London, London, UK
| | - Hynek Pikhart
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic
- Research Department of Epidemiology and Public Health, University College London, London, UK
| |
Collapse
|
13
|
Andreas A, Maloy A, Nyunoya T, Zhang Y, Chandra D. The FoxP1 gene regulates lung function, production of matrix metalloproteinases and inflammatory mediators, and viability of lung epithelia. Respir Res 2022; 23:281. [PMID: 36221131 PMCID: PMC9554985 DOI: 10.1186/s12931-022-02213-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 09/27/2022] [Indexed: 12/02/2022] Open
Abstract
Background Genes involved in lung development may become dysregulated in adult life and contribute to the pathogenesis of lung diseases. Multiple genes regulate lung development, including Forkhead box protein P1-4 (FoxP1-4). Methods We examined the association between variants in the FoxP1-4 genes and lung function using data from a GWAS that included close to 400,000 individuals and 20 million SNPs. Results More than 100 variants in the FoxP1 gene, but none in the FoxP2-4 genes, are associated with lung function. The sentinel variant in the FoxP1 gene associated with FEV1 was rs1499894 (C > T), while the sentinel variant in the FoxP1 gene associated with FVC was rs35480566 (A > G). Those with the T allele instead of the C allele for rs1499894, or the G allele instead of the A allele for rs35480566 had increased FoxP1 mRNA levels in transcriptomic data, higher FEV1 and FVC, and reduced odds of being diagnosed with idiopathic pulmonary fibrosis. Further, knockdown of FoxP1 in lung epithelial cells by RNA interference led to increased mRNA levels for matrix metalloproteinases 1, 2, 3 and pro-inflammatory cytokines IL-6 & IL-8, as well as reduced cell viability after exposure to cigarette smoke—all processes implicated in the pathogenesis of COPD and IPF. Conclusions Our results suggest that the protein encoded by the FoxP1 gene may protect against the development of COPD and IPF. A causal role for FoxP1 in the pathogenesis of COPD and IPF may warrant further investigation, and FoxP1 may be a novel therapeutic target for these lung disorders. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-02213-4.
Collapse
Affiliation(s)
- Alexis Andreas
- Department of Medicine, University of Pittsburgh, Pittsburgh, USA
| | - Abby Maloy
- Department of Medicine, University of Pittsburgh, Pittsburgh, USA
| | - Toru Nyunoya
- Department of Medicine, University of Pittsburgh, Pittsburgh, USA.,Medical Specialty Service Line, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, USA
| | - Yingze Zhang
- Department of Medicine, University of Pittsburgh, Pittsburgh, USA
| | - Divay Chandra
- Department of Medicine, University of Pittsburgh, Pittsburgh, USA. .,Pulmonary, Allergy, and Critical Care Medicine, UPMC Montefiore Hospital-NW628, 3459 Fifth Avenue, Pittsburgh, PA, 15213, USA.
| |
Collapse
|
14
|
Lv X, Dong M, Tang W, Qin J, Wang W, Li M, Teng F, Yi L, Dong J, Wei Y. Ferroptosis, novel therapeutics in asthma. Biomed Pharmacother 2022; 153:113516. [DOI: 10.1016/j.biopha.2022.113516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 08/02/2022] [Accepted: 08/03/2022] [Indexed: 11/26/2022] Open
|
15
|
Hu P, Zhang Y, Vinturache A, Tian Y, Hu Y, Gao Y, Ding G. Prenatal pyrethroid exposure and lung function among school-aged children. Int J Hyg Environ Health 2022; 245:114027. [PMID: 36067539 DOI: 10.1016/j.ijheh.2022.114027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/13/2022] [Accepted: 08/14/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Previous epidemiological evidence mainly focused on the adverse effects of prenatal exposure to pyrethroid insecticides (PYRs) on respiratory health during childhood. It remains unclear whether the PYR exposures can also impact on children's lung function. OBJECTIVES To explore the potential effects of prenatal PYR exposures on lung function in a population of Chinese children. METHODS This study included 233 mother-child dyads from the Laizhou Wan Birth Cohort (LWBC), Shandong province, northern China, between September 2010 and December 2013. Three metabolites of PYRs [3-phenoxybenzoic acid (3-PBA), and cis- and trans-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylic acid (cis-DCCA and trans-DCCA)] were measured using gas chromatography-mass spectrometry (GC-MS) in maternal urine samples collected at recruitment. Lung function was assessed with spirometry in children aged 6-8 years. Multivariable linear regression and generalized linear models (GLMs) assessed the associations of prenatal PYR exposures with lung function in children. RESULTS Among the PYR metabolites, 3-PBA (81.5%) were most frequently detected, followed by trans-DCCA (55.4%) and cis-DCCA (21.9%). The 3-PBA concentration was associated with a 1% decrease in FEV1/FVC in the highest quartiles of exposure compared to the lowest quartile, with a potential dose response association (p-trend = 0.085). Our findings provide a suggestive effect modification by sex, with girls being more susceptible than the boys (p-trend = 0.011). However, there were no associations between the trans-DCCA concentration and lung function parameters. CONCLUSION Prenatal 3-PBA concentrations were associated with a modest decrease in FEV1/FVC among school-aged children, and the association was slightly more pronounced for the girls than for the boys.
Collapse
Affiliation(s)
- Peipei Hu
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Yan Zhang
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Angela Vinturache
- Department of Obstetrics & Gynecology, University of Alberta, Alberta, Canada; Department of Neuroscience, University of Lethbridge, Alberta, Canada.
| | - Ying Tian
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China; MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Yi Hu
- Center for Medical Bioinformatics, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Yu Gao
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Guodong Ding
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| |
Collapse
|
16
|
A systematic review and meta-analysis of preanalytical factors and methodological differences influencing the measurement of circulating vascular endothelial growth factor. PLoS One 2022; 17:e0270232. [PMID: 35793362 PMCID: PMC9258884 DOI: 10.1371/journal.pone.0270232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 06/06/2022] [Indexed: 11/25/2022] Open
Abstract
Background Intraocular treatment with antibodies targeting vascular endothelial growth factor (anti-VEGF) inhibits pathological vessel growth in adults and preterm infants. Recently, concerns regarding the impact of anti-VEGF treatment on systemic VEGF levels in preterm infants have been raised. Earlier studies suggest that preanalytical and methodological parameters impact analytical VEGF concentrations, but we have not found a comprehensive systematic review covering preanalytical procedures and methods for VEGF measurements. Objective This review aimed to evaluate the most critical factors during sample collection, sample handling, and the analytical methods that influence VEGF levels and therefore should be considered when planning a prospective collection of samples to get reproducible, comparable results. Material and methods PubMed and Scopus databases were searched 2021/Nov/11. In addition, identification of records via other methods included reference, citation, and Google Scholar searches. Rayyan QCRI was used to handle duplicates and the selection process. Publications reporting preanalytical handling and/or methodological comparisons using human blood samples were included. Exclusion criteria were biological, environmental, genetic, or physiological factors affecting VEGF. The data extraction sheets included bias assessment using the QUADAS-2 tool, evaluating patient selection, index-test, reference standard, and flow and timing. Concentrations of VEGF and results from statistical comparisons of analytical methods and/or preanalytical sample handling and/or different sample systems were extracted. The publications covering preanalytical procedures were further categorized based on the stage of the preanalytical procedure. Meta-analysis was used to visualize VEGF concentrations among healthy individuals. The quality of evidence was rated according to GRADE. Results We identified 1596 publications, and, after the screening process, 43 were considered eligible for this systematic review. The risk of bias estimation was difficult for 2/4 domains due to non-reported information. Four critical steps in the preanalytical process that impacted VEGF quantification were identified: blood drawing and the handling before, during, and after centrifugation. Sub-categorization of those elements resulted in nine findings, rated from moderate to very low evidence grade. The choice of sample system was the most reported factor. VEGF levels (mean [95% CI]) in serum (n = 906, 20 publications), (252.5 [213.1–291.9] pg/mL), were approximated to ninefold higher than in plasma (n = 1122, 23 publications), (27.8 [23.6–32.1] pg/mL), based on summarized VEGF levels with meta-analysis. Notably, most reported plasma levels were below the calibration range of the used method. Conclusion When measuring circulating VEGF levels, choice of sample system and sample handling are important factors to consider for ensuring high reproducibility and allowing study comparisons. Protocol: CRD42020192433
Collapse
|
17
|
Steinle H, Weber J, Stoppelkamp S, Große-Berkenbusch K, Golombek S, Weber M, Canak-Ipek T, Trenz SM, Schlensak C, Avci-Adali M. Delivery of synthetic mRNAs for tissue regeneration. Adv Drug Deliv Rev 2021; 179:114007. [PMID: 34710530 DOI: 10.1016/j.addr.2021.114007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/03/2021] [Accepted: 10/12/2021] [Indexed: 02/06/2023]
Abstract
In recent years, nucleic acid-based therapeutics have gained increasing importance as novel treatment options for disease prevention and treatment. Synthetic messenger RNAs (mRNAs) are promising nucleic acid-based drugs to transiently express desired proteins that are missing or defective. Recently, synthetic mRNA-based vaccines encoding viral proteins have been approved for emergency use against COVID-19. Various types of vehicles, such as lipid nanoparticles (LNPs) and liposomes, are being investigated to enable the efficient uptake of mRNA molecules into desired cells. In addition, the introduction of novel chemical modifications into mRNAs increased the stability, enabled the modulation of nucleic acid-based drugs, and increased the efficiency of mRNA-based therapeutic approaches. In this review, novel and innovative strategies for the delivery of synthetic mRNA-based therapeutics for tissue regeneration are discussed. Moreover, with this review, we aim to highlight the versatility of synthetic mRNA molecules for various applications in the field of regenerative medicine and also discuss translational challenges and required improvements for mRNA-based drugs.
Collapse
Affiliation(s)
- Heidrun Steinle
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Josefin Weber
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Sandra Stoppelkamp
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Katharina Große-Berkenbusch
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Sonia Golombek
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Marbod Weber
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Tuba Canak-Ipek
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Sarah-Maria Trenz
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Christian Schlensak
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Meltem Avci-Adali
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany.
| |
Collapse
|
18
|
Han F, Li S, Yang Y, Bai Z. Interleukin-6 promotes ferroptosis in bronchial epithelial cells by inducing reactive oxygen species-dependent lipid peroxidation and disrupting iron homeostasis. Bioengineered 2021; 12:5279-5288. [PMID: 34402724 PMCID: PMC8806540 DOI: 10.1080/21655979.2021.1964158] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Asthma occurs accompanied by the ferroptosis in bronchial epithelial cells, during which Interleukin-6 (IL-6) plays a key role. However, the associations between IL-6, ferroptosis and asthma have not been reported. Bronchial epithelial cells BEAS-2B cells were induced by different concentrations of IL-6 and cell viability was detected by MTT assay. The TBARS production rate was detected by corresponding kit. The expression of oxidative stress-related indexes was detected by ELISA. The Iron Assay Kits detected total iron levels and ferrous ion (Fe2+) levels. Labile iron pool assay was used to detect the cell unstable iron pool. The expression of ferroptosis-related proteins was detected by Western blot. To further examine the mechanism of action, ferroptosis inhibitor Ferrostatin 1 (Fer-1), antioxidant NAC, and the iron supplement Fe were added. We found that IL-6 decreased the activity, promoted lipid peroxidation, disrupted iron homeostasis of BEAS-2B cells, and induced iron death in bronchial epithelial BEAS-2B cells. However, pretreatment with Ferrostatin-1 (Fer-1) and antioxidant NAC partially reversed the effect of IL-6 on lipid peroxidation and ferroptosis in BEAS-2B cells, while Fe augmented the effect. Overall, IL-6 promotes ferroptosis in bronchial epithelial cells by inducing reactive oxygen species (ROS)-dependent lipid peroxidation and disrupting iron homeostasis.
Collapse
Affiliation(s)
- Fei Han
- The Key Laboratory Of Industrial Biotechnology, Ministry Of Education, School Of Biotechnology, jiangnan university, Jiangsu, China.,National Engineering Laboratory For Cereal Fermentation Technology, Jiangnan University, Jiangsu, China.,Jiangsu Provincial Research Center For Bioactive Product Processing Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Shijie Li
- The Key Laboratory Of Industrial Biotechnology, Ministry Of Education, School Of Biotechnology, jiangnan university, Jiangsu, China.,National Engineering Laboratory For Cereal Fermentation Technology, Jiangnan University, Jiangsu, China.,Jiangsu Provincial Research Center For Bioactive Product Processing Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Yankun Yang
- The Key Laboratory Of Industrial Biotechnology, Ministry Of Education, School Of Biotechnology, jiangnan university, Jiangsu, China.,National Engineering Laboratory For Cereal Fermentation Technology, Jiangnan University, Jiangsu, China.,Jiangsu Provincial Research Center For Bioactive Product Processing Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Zhonghu Bai
- The Key Laboratory Of Industrial Biotechnology, Ministry Of Education, School Of Biotechnology, jiangnan university, Jiangsu, China.,National Engineering Laboratory For Cereal Fermentation Technology, Jiangnan University, Jiangsu, China.,Jiangsu Provincial Research Center For Bioactive Product Processing Technology, Jiangnan University, Wuxi, Jiangsu, China
| |
Collapse
|
19
|
Huang Y, Wen HJ, Guo YLL, Wei TY, Wang WC, Tsai SF, Tseng VS, Wang SLJ. Prenatal exposure to air pollutants and childhood atopic dermatitis and allergic rhinitis adopting machine learning approaches: 14-year follow-up birth cohort study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 777:145982. [PMID: 33684752 DOI: 10.1016/j.scitotenv.2021.145982] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
The incidence of childhood atopic dermatitis (AD) and allergic rhinitis (AR) is increasing. This warrants development of measures to predict and prevent these conditions. We aimed to investigate the predictive ability of a spectrum of data mining methods to predict childhood AD and AR using longitudinal birth cohort data. We conducted a 14-year follow-up of infants born to pregnant women who had undergone maternal examinations at nine selected maternity hospitals across Taiwan during 2000-2005. The subjects were interviewed using structured questionnaires to record data on basic demographics, socioeconomic status, lifestyle, medical history, and 24-h dietary recall. Hourly concentrations of air pollutants within 1 year before childbirth were obtained from 76 national air quality monitoring stations in Taiwan. We utilized weighted K-nearest neighbour method (k = 3) to infer the personalized air pollution exposure. Machine learning methods were performed on the heterogeneous attributes set to predict allergic diseases in children. A total of 1439 mother-infant pairs were recruited in machine learning analysis. The prevalence of AD and AR in children up to 14 years of age were 6.8% and 15.9%, respectively. Overall, tree-based models achieved higher sensitivity and specificity than other methods, with areas under receiver operating characteristic curve of 83% for AD and 84% for AR, respectively. Our findings confirmed that prenatal air quality is an important factor affecting the predictive ability. Moreover, different air quality indices were better predicted, in combination than separately. Combining heterogeneous attributes including environmental exposures, demographic information, and allergens is the key to a better prediction of children allergies in the general population. Prenatal exposure to nitrogen dioxide (NO2) and its concatenation changes with time were significant predictors for AD and AR till adolescent.
Collapse
Affiliation(s)
- Yu Huang
- Department of Computer Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Hui-Ju Wen
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Yue-Liang Leon Guo
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Department of Environmental and Occupational Medicine, National Taiwan University Hospital, Taipei, Taiwan; Institute of Environmental and Occupational Health Sciences, National Taiwan University College of Public Health, Taipei, Taiwan
| | - Tzu-Yin Wei
- Department of Computer Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Wei-Cheng Wang
- Department of Computer Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Shin-Fen Tsai
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Vincent S Tseng
- Department of Computer Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan.
| | - Shu-Li Julie Wang
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Department of Public Health, National Defence Medical Centre, Taipei, Taiwan; Department of Safety, Health, and Environmental Engineering, National United University, Miaoli, Taiwan.
| |
Collapse
|
20
|
Kim HS, Arellano K, Park H, Todorov SD, Kim B, Kang H, Park YJ, Suh DH, Jung ES, Ji Y, Holzapfel WH. Assessment of the safety and anti-inflammatory effects of three Bacillus strains in the respiratory tract. Environ Microbiol 2021; 23:3077-3098. [PMID: 33899316 DOI: 10.1111/1462-2920.15530] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 04/12/2021] [Indexed: 11/29/2022]
Abstract
Chronic respiratory diseases are part of accumulating health problems partly due to worldwide increase in air pollution. By their antimicrobial and immunomodulatory properties, some probiotics constitute promising alternatives for the prevention and treatment of chronic respiratory diseases. We have isolated Bacillus strains from Korean fermented foods and selected three potentially probiotic strains (two Bacillus subtilis and one Bacillus amyloliquefaciens) based on safety, antimicrobial efficacy, activity against airborne pathogens and their immunomodulatory properties in vivo. Safety evaluation included in silico analysis for confirming absence of virulence genes. Safety for the respiratory tract was confirmed by an in vivo pathogenicity test using a murine model. Antimicrobial activity was displayed against several airborne pathogens. Potential antimicrobial metabolites such as 2,3-butanediol and propylene glycol were identified as possible antagonistic agents. Immunomodulatory properties in vitro were confirmed by upregulation of IL-10 expression in a macrophage cell line. Intranasal instillation and inhalation in an ovalbumin (OVA)-induced lung inflammation murine model reduced T helper type 2 (Th2) cytokines at transcriptional and protein levels in the lungs. The safety and potentially beneficial role of these Bacillus strains could be demonstrated for the respiratory tract of a murine model.
Collapse
Affiliation(s)
- Hye-Shin Kim
- Department of Advanced Convergence, Handong Global University, Pohang, Gyungbuk, 37554, Republic of Korea
| | - Karina Arellano
- Department of Advanced Convergence, Handong Global University, Pohang, Gyungbuk, 37554, Republic of Korea
| | - Haryung Park
- HEM Inc., Pohang, Gyungbuk, 37554, Republic of Korea
| | - Svetoslav D Todorov
- Department of Advanced Convergence, Handong Global University, Pohang, Gyungbuk, 37554, Republic of Korea
| | - Bobae Kim
- HEM Inc., Pohang, Gyungbuk, 37554, Republic of Korea
| | - Hyeji Kang
- Department of Advanced Convergence, Handong Global University, Pohang, Gyungbuk, 37554, Republic of Korea.,HEM Inc., Pohang, Gyungbuk, 37554, Republic of Korea
| | - Yu Jin Park
- HEM Inc., 77, Changnyong-daero 256 Beon-gil, Suwon-si, Gyeonggi-do, 16229, Republic of Korea
| | - Dong Ho Suh
- HEM Inc., 77, Changnyong-daero 256 Beon-gil, Suwon-si, Gyeonggi-do, 16229, Republic of Korea
| | - Eun Sung Jung
- HEM Inc., 77, Changnyong-daero 256 Beon-gil, Suwon-si, Gyeonggi-do, 16229, Republic of Korea
| | - Yosep Ji
- Department of Advanced Convergence, Handong Global University, Pohang, Gyungbuk, 37554, Republic of Korea.,HEM Inc., 77, Changnyong-daero 256 Beon-gil, Suwon-si, Gyeonggi-do, 16229, Republic of Korea
| | - Wilhelm H Holzapfel
- Department of Advanced Convergence, Handong Global University, Pohang, Gyungbuk, 37554, Republic of Korea.,HEM Inc., Pohang, Gyungbuk, 37554, Republic of Korea
| |
Collapse
|
21
|
MiR-29b is associated with perinatal inflammation in extremely preterm infants. Pediatr Res 2021; 89:889-893. [PMID: 32386397 PMCID: PMC7649129 DOI: 10.1038/s41390-020-0943-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/14/2020] [Accepted: 04/28/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Inflammation is strongly associated with premature birth and neonatal morbidities. Increases in infant haptoglobin, haptoglobin-related protein (Hp&HpRP), and interleukin-6 (IL-6) levels are indicators of intra-amniotic inflammation (IAI) and have been linked to poor neonatal outcomes. Inflammation causes epigenetic changes, specifically suppression of miR-29 expression. The current study sought to determine whether miR-29b levels in cord blood or neonatal venous blood are associated with IAI, identified by elevated IL-6 and Hp, and subsequent clinical morbidities in the infant. METHODS We tested 92 cord blood samples from premature newborns and 18 venous blood samples at 36 weeks corrected gestational age. MiR-29b, Hp&HpRP, and IL-6 were measured by polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. RESULTS Decreased levels of miR-29b were observed in infants exposed to IAI with elevated Hp&HpRP and IL-6 levels and in infants delivered by spontaneous preterm birth. Lower miR-29 levels were also observed in women diagnosed with histological chorioamnionitis or funisitis and in infants with cerebral palsy. Higher levels of miR-29 were measured in infants small for gestational age and in venous samples from older infants. CONCLUSIONS MiR-29 may be an additional biomarker of IAI and a potential therapeutic target for treating poor newborn outcomes resulting from antenatal exposure to IAI. IMPACT Decreases in miR-29b are associated with intrauterine inflammation. Hp&HpRP increases are associated with decreased miR-29b. MiR-29b may be an additional biomarker for neonatal outcomes and a potential therapeutic target for intrauterine inflammation.
Collapse
|
22
|
Berry SB, Haack AJ, Theberge AB, Brighenti S, Svensson M. Host and Pathogen Communication in the Respiratory Tract: Mechanisms and Models of a Complex Signaling Microenvironment. Front Med (Lausanne) 2020; 7:537. [PMID: 33015094 PMCID: PMC7511576 DOI: 10.3389/fmed.2020.00537] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 07/29/2020] [Indexed: 01/15/2023] Open
Abstract
Chronic lung diseases are a leading cause of morbidity and mortality across the globe, encompassing a diverse range of conditions from infections with pathogenic microorganisms to underlying genetic disorders. The respiratory tract represents an active interface with the external environment having the primary immune function of resisting pathogen intrusion and maintaining homeostasis in response to the myriad of stimuli encountered within its microenvironment. To perform these vital functions and prevent lung disorders, a chemical and biological cross-talk occurs in the complex milieu of the lung that mediates and regulates the numerous cellular processes contributing to lung health. In this review, we will focus on the role of cross-talk in chronic lung infections, and discuss how different cell types and signaling pathways contribute to the chronicity of infection(s) and prevent effective immune clearance of pathogens. In the lung microenvironment, pathogens have developed the capacity to evade mucosal immunity using different mechanisms or virulence factors, leading to colonization and infection of the host; such mechanisms include the release of soluble and volatile factors, as well as contact dependent (juxtracrine) interactions. We explore the diverse modes of communication between the host and pathogen in the lung tissue milieu in the context of chronic lung infections. Lastly, we review current methods and approaches used to model and study these host-pathogen interactions in vitro, and the role of these technological platforms in advancing our knowledge about chronic lung diseases.
Collapse
Affiliation(s)
- Samuel B. Berry
- Department of Medicine, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
- Department of Chemistry, University of Washington, Seattle, WA, United States
| | - Amanda J. Haack
- Department of Chemistry, University of Washington, Seattle, WA, United States
| | | | - Susanna Brighenti
- Department of Medicine, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Mattias Svensson
- Department of Medicine, Center for Infectious Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| |
Collapse
|
23
|
Stamenkovska M, Thaçi Q, Hadzi‐Petrushev N, Angelovski M, Bogdanov J, Reçica S, Kryeziu I, Gagov H, Mitrokhin V, Kamkin A, Schubert R, Mladenov M, Sopi RB. Curcumin analogs (B2BrBC and C66) supplementation attenuates airway hyperreactivity and promote airway relaxation in neonatal rats exposed to hyperoxia. Physiol Rep 2020; 8:e14555. [PMID: 32812392 PMCID: PMC7435033 DOI: 10.14814/phy2.14555] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/31/2020] [Accepted: 08/03/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND This study was undertaken to test the hypothesis that the newly synthesized curcuminoids B2BrBC and C66 supplementation will overcome hyperoxia-induced tracheal hyperreactivity and impairment of relaxation of tracheal smooth muscle (TSM). MATERIALS AND METHODS Rat pups (P5) were exposed to hyperoxia (>95% O2 ) or normoxia for 7 days. At P12, tracheal cylinders were used to study in vitro contractile responses induced by methacholine (10-8 -10-4 M) or relaxation induced by electrical field stimulation (5-60 V) in the presence/absence of B2BrBC or C66, or to study the direct relaxant effects elicited by both analogs. RESULTS Hyperoxia significantly increased contraction and decreased relaxation of TSM compared to normoxia controls. Presence of B2BrBC or C66 normalized both contractile and relaxant responses altered by hyperoxia. Both, curcuminoids directly induced dose-dependent relaxation of preconstricted TSM. Supplementation of hyperoxic animals with B2BrBC or C66, significantly increased catalase activity. Lung TNF-α was significantly increased in hyperoxia-exposed animals. Both curcumin analogs attenuated increases in TNF-α in hyperoxic animals. CONCLUSION We show that B2BrBC and C66 provide protection against adverse contractility and relaxant effect of hyperoxia on TSM, and whole lung inflammation. Both analogs induced direct relaxation of TSM. Through restoration of catalase activity in hyperoxia, we speculate that analogs are protective against hyperoxia-induced tracheal hyperreactivity by augmenting H2 O2 catabolism. Neonatal hyperoxia induces increased tracheal contractility, attenuates tracheal relaxation, diminishes lung antioxidant capacity, and increases lung inflammation, while monocarbonyl CUR analogs were protective of these adverse effects of hyperoxia. Analogs may be promising new therapies for neonatal hyperoxic airway and lung disease.
Collapse
Affiliation(s)
- Mimoza Stamenkovska
- Faculty of Natural Sciences and MathematicsInstitute of Biology“Sts, Cyril and Methodius” UniversitySkopjeMacedonia
| | - Qendrim Thaçi
- Department of Premedical Courses‐BiologyFaculty of MedicineUniversity of PrishtinaSt. Martyrs’ Boulevard n.n.PrishtinaKosovoSerbia
| | - Nikola Hadzi‐Petrushev
- Faculty of Natural Sciences and MathematicsInstitute of Biology“Sts, Cyril and Methodius” UniversitySkopjeMacedonia
| | - Marija Angelovski
- Faculty of Natural Sciences and MathematicsInstitute of Biology“Sts, Cyril and Methodius” UniversitySkopjeMacedonia
| | - Jane Bogdanov
- Faculty of Natural Sciences and MathematicsInstitute of Chemistry“Ss. Cyril and Methodius” UniversitySkopjeMacedonia
| | - Shkëlzen Reçica
- Department of Premedical Courses‐BiologyFaculty of MedicineUniversity of PrishtinaSt. Martyrs’ Boulevard n.n.PrishtinaKosovoSerbia
| | - Islam Kryeziu
- Department of Premedical Courses‐BiologyFaculty of MedicineUniversity of PrishtinaSt. Martyrs’ Boulevard n.n.PrishtinaKosovoSerbia
| | - Hristo Gagov
- Faculty of BiologySofia University St. Kliment OhridskiSofiaBulgaria
| | - Vadim Mitrokhin
- Department of Fundamental and Applied PhysiologyRussian National Research Medical UniversityMoscowRussia
| | - Andre Kamkin
- Department of Fundamental and Applied PhysiologyRussian National Research Medical UniversityMoscowRussia
| | - Rudolf Schubert
- PhysiologyInstitute of Theoretical MedicineMedical FacultyUniversity of AugsburgAugsburgGermany
| | - Mitko Mladenov
- Faculty of Natural Sciences and MathematicsInstitute of Biology“Sts, Cyril and Methodius” UniversitySkopjeMacedonia
| | - Ramadan B. Sopi
- Department of Premedical Courses‐BiologyFaculty of MedicineUniversity of PrishtinaSt. Martyrs’ Boulevard n.n.PrishtinaKosovoSerbia
| |
Collapse
|
24
|
WNT5a-ROR Signaling Is Essential for Alveologenesis. Cells 2020; 9:cells9020384. [PMID: 32046118 PMCID: PMC7072327 DOI: 10.3390/cells9020384] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/03/2020] [Accepted: 02/06/2020] [Indexed: 12/14/2022] Open
Abstract
WNT5a is a mainly “non-canonical” WNT ligand whose dysregulation is observed in lung diseases such as idiopathic pulmonary fibrosis (IPF), chronic obstructive pulmonary disease (COPD) and asthma. Germline deletion of Wnt5a disrupts embryonic lung development. However, the temporal-specific function of WNT5a remains unknown. In this study, we generated a conditional loss-of-function mouse model (Wnt5aCAG) and examined the specific role of Wnt5a during the saccular and alveolar phases of lung development. The lack of Wnt5a in the saccular phase blocked distal airway expansion and attenuated differentiation of endothelial and alveolar epithelial type I (AT1) cells and myofibroblasts. Postnatal Wnt5a inactivation disrupted alveologenesis, producing a phenotype resembling human bronchopulmonary dysplasia (BPD). Mutant lungs showed hypoalveolization, but endothelial and epithelial differentiation was unaffected. The major impact of Wnt5a inactivation on alveologenesis was on myofibroblast differentiation and migration, with reduced expression of key regulatory genes. These findings were validated in vitro using isolated lung fibroblasts. Conditional inactivation of the WNT5a receptors Ror1 and Ror2 in alveolar myofibroblasts recapitulated the Wnt5aCAG phenotype, demonstrating that myofibroblast defects are the major cause of arrested alveologenesis in Wnt5aCAG lungs. Finally, we show that WNT5a is reduced in human BPD lung samples, indicating the clinical relevance and potential role for WNT5a in pathogenesis of BPD.
Collapse
|
25
|
Koenen MH, van Montfrans JM, Sanders EAM, Bogaert D, Verhagen LM. Immunoglobulin A deficiency in children, an undervalued clinical issue. Clin Immunol 2019; 209:108293. [PMID: 31678364 DOI: 10.1016/j.clim.2019.108293] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 10/23/2019] [Accepted: 10/23/2019] [Indexed: 12/24/2022]
Abstract
Immunoglobulin A (IgA) is the principal antibody in secretions that bathe the gastrointestinal and respiratory mucosal surfaces and acts as an important first line of defense against invasion of pathogenic micro-organisms. The reported prevalence rate of complete IgA deficiency in healthy children ranges from 1:170 to 1:400, and as a solitary condition, it is often considered of limited clinical importance. However, patients with IgA deficiency can develop recurrent respiratory and gastrointestinal infections, as well as allergic and autoimmune diseases. In children referred for recurrent respiratory tract infections, the observed prevalence rate increases more than tenfold. This review discusses several aspects of IgA deficiency in children, including immunologic and microbiome changes in early childhood and the potential consequences of this condition in later life. It illustrates the importance of early identification of children with impaired IgA production who deserve appropriate clinical care and follow-up.
Collapse
Affiliation(s)
- M H Koenen
- Department of Pediatric Immunology and Infectious Diseases, Wilhelmina Children's Hospital, Lundlaan 6, 3508 AB Utrecht, the Netherlands.
| | - J M van Montfrans
- Department of Pediatric Immunology and Infectious Diseases, Wilhelmina Children's Hospital, Lundlaan 6, 3508 AB Utrecht, the Netherlands.
| | - E A M Sanders
- Department of Pediatric Immunology and Infectious Diseases, Wilhelmina Children's Hospital, Lundlaan 6, 3508 AB Utrecht, the Netherlands; Centre for Infectious Disease Control (Cib), National Institute of Public Health and the Environment (RIVM), Antonie van Leeuwenhoeklaan 9, 3720 BA Bilthoven, the Netherlands.
| | - D Bogaert
- Department of Pediatric Immunology and Infectious Diseases, Wilhelmina Children's Hospital, Lundlaan 6, 3508 AB Utrecht, the Netherlands; Center for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Little France Crescent 47, EH16 4TJ Edinburgh, United Kingdom.
| | - L M Verhagen
- Department of Pediatric Immunology and Infectious Diseases, Wilhelmina Children's Hospital, Lundlaan 6, 3508 AB Utrecht, the Netherlands.
| |
Collapse
|
26
|
Jiang Y, Luo Y, Tang Y, Moats R, Warburton D, Zhou S, Lou J, Pryhuber GS, Shi W, Wang LL. Alteration of cystic airway mesenchyme in congenital pulmonary airway malformation. Sci Rep 2019; 9:5296. [PMID: 30923323 PMCID: PMC6439218 DOI: 10.1038/s41598-019-41777-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 03/08/2019] [Indexed: 12/21/2022] Open
Abstract
Congenital pulmonary airway malformation (CPAM) is the most common congenital lesion detected in the neonatal lung, which may lead to respiratory distress, infection, and pneumothorax. CPAM is thought to result from abnormal branching morphogenesis during fetal lung development, arising from different locations within the developing respiratory tract. However, the pathogenic mechanisms are unknown, and previous studies have focused on abnormalities in airway epithelial cells. We have analyzed 13 excised lung specimens from infants (age < 1 year) with a confirmed diagnosis of type 2 CPAM, which is supposed to be derived from abnormal growth of intrapulmonary distal airways. By examining the mesenchymal components including smooth muscle cells, laminin, and elastin in airway and cystic walls using immunofluorescence staining, we found that the thickness and area of the smooth muscle layer underlining the airway cysts in these CPAM tissue sections were significantly decreased compared with those in bronchiolar walls of normal controls. Extracellular elastin fibers were also visually reduced or absent in airway cystic walls. In particular, a layer of elastin fibers seen in normal lung between airway epithelia and underlying smooth muscle cells was missing in type 2 CPAM samples. Thus, our data demonstrate for the first time that airway cystic lesions in type 2 CPAM occur not only in airway epithelial cells, but also in adjacent mesenchymal tissues, including airway smooth muscle cells and their extracellular protein products. This provides a new direction to study the molecular and cellular mechanisms of CPAM pathogenesis in human.
Collapse
Affiliation(s)
- Yi Jiang
- Department of Pathology, the Second Xiangya Hospital of Central South University, Changsha, China.,Developmental Biology and Regenerative Medicine Program, Children's Hospital Los Angeles, Los Angeles, CA, 90027, USA
| | - Yongfeng Luo
- Developmental Biology and Regenerative Medicine Program, Children's Hospital Los Angeles, Los Angeles, CA, 90027, USA
| | - Yang Tang
- Developmental Biology and Regenerative Medicine Program, Children's Hospital Los Angeles, Los Angeles, CA, 90027, USA
| | - Rex Moats
- Developmental Biology and Regenerative Medicine Program, Children's Hospital Los Angeles, Los Angeles, CA, 90027, USA
| | - David Warburton
- Developmental Biology and Regenerative Medicine Program, Children's Hospital Los Angeles, Los Angeles, CA, 90027, USA
| | - Shengmei Zhou
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA, 90027, USA
| | - Jianlin Lou
- Institute of Occupational Diseases, Zhejiang Academy of Medical Sciences, Hangzhou, China
| | - Gloria S Pryhuber
- Department of Pediatrics, University of Rochester School of Medicine and Dentistry, Rochester, NY, 14642, USA
| | - Wei Shi
- Developmental Biology and Regenerative Medicine Program, Children's Hospital Los Angeles, Los Angeles, CA, 90027, USA.
| | - Larry L Wang
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA, 90027, USA.
| |
Collapse
|
27
|
Witten ML, Chau B, Sáez E, Boitano S, Clark Lantz R. Early life inhalation exposure to mine tailings dust affects lung development. Toxicol Appl Pharmacol 2019; 365:124-132. [PMID: 30641074 DOI: 10.1016/j.taap.2019.01.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 01/02/2019] [Accepted: 01/11/2019] [Indexed: 12/13/2022]
Abstract
Exposure to mine tailings dust from active and abandoned mining operations may be a very significant health hazard, especially to sensitive populations living in arid and semi-arid climates like the desert southwest of the US. It is anticipated that early life exposures during sensitive times of development can lead to adult disease. However, very few studies have investigated the effects of inhalation exposure to real world dusts during lung development. Using a mouse model, we have examined the effect(s) of inhalation of real world mine tailing dusts under three separate conditions: (1) Exposure only during in utero development (exposure of the pregnant moms) (2) exposure only after birth and (3) exposures that occurred continuously during in utero development, through gestation and birth until the mice reached adulthood (28 days old). We found that the most significant changes in lung structure and function were observed in male mice when exposure occurred continuously throughout development. These changes included increased airway hyper-reactivity, increased expression of epithelial to mesenchymal (EMT) transition protein markers and increased expression of cytokines related to eosinophils. The data also indicate that in utero exposures through maternal inhalation can prime the lung of male mice for more severe responses to subsequent postnatal exposures. This may be due to epigenetic alterations in gene regulation, immune response, molecular signaling, and growth factors involved in lung development that may make the neonatal lung more susceptible to continued dust exposure.
Collapse
Affiliation(s)
- Mark L Witten
- Phoenix Biometrics, Inc., Tucson, AZ 85710, United States
| | - Binh Chau
- Department of Cellular & Molecular Medicine, University of Arizona College of Medicine, Tucson, AZ 85724, United States.
| | - Eduardo Sáez
- Department of Chemical and Environmental Engineering, University of Arizona, United States.
| | - Scott Boitano
- Department of Physiology, The Asthma and Airway Disease Research Center, University of Arizona Health Sciences Center, Tucson, AZ 85724, United States.
| | - R Clark Lantz
- Department of Cellular & Molecular Medicine, University of Arizona College of Medicine, Tucson, AZ 85724, United States.
| |
Collapse
|
28
|
Lutchen KR, Paré PD, Seow CY. Hyperresponsiveness: Relating the Intact Airway to the Whole Lung. Physiology (Bethesda) 2018; 32:322-331. [PMID: 28615315 DOI: 10.1152/physiol.00008.2017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/10/2017] [Accepted: 05/10/2017] [Indexed: 11/22/2022] Open
Abstract
We relate changes of the airway wall to the response of the intact airway and the whole lung. We address how mechanical conditions and specific structural changes for an airway contribute to hyperresponsiveness resistant to deep inspiration. This review conveys that the origins of hyperresponsiveness do not devolve into an abnormality at single structural level but require examination of the complex interplay of all the parts.
Collapse
Affiliation(s)
- Kenneth R Lutchen
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts
| | - Peter D Paré
- Department of Medicine, Respiratory Division, University of British Columbia, Vancouver, British Columbia, Canada.,Centre for Heart Lung Innovation-St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada; and
| | - Chun Y Seow
- Centre for Heart Lung Innovation-St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada; and.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| |
Collapse
|
29
|
Kravitz-Wirtz N, Teixeira S, Hajat A, Woo B, Crowder K, Takeuchi D. Early-Life Air Pollution Exposure, Neighborhood Poverty, and Childhood Asthma in the United States, 1990⁻2014. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E1114. [PMID: 29848979 PMCID: PMC6025399 DOI: 10.3390/ijerph15061114] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/14/2018] [Accepted: 05/23/2018] [Indexed: 12/17/2022]
Abstract
Ambient air pollution is a well-known risk factor of various asthma-related outcomes, however, past research has often focused on acute exacerbations rather than asthma development. This study draws on a population-based, multigenerational panel dataset from the United States to assess the association of childhood asthma risk with census block-level, annual-average air pollution exposure measured during the prenatal and early postnatal periods, as well as effect modification by neighborhood poverty. Findings suggest that early-life exposures to nitrogen dioxide (NO₂), a marker of traffic-related pollution, and fine particulate matter (PM2.5), a mixture of industrial and other pollutants, are positively associated with subsequent childhood asthma diagnosis (OR = 1.25, 95% CI = 1.10⁻1.41 and OR = 1.25, 95% CI = 1.06⁻1.46, respectively, per interquartile range (IQR) increase in each pollutant (NO₂ IQR = 8.51 ppb and PM2.5 IQR = 4.43 µ/m³)). These effects are modified by early-life neighborhood poverty exposure, with no or weaker effects in moderate- and low- (versus high-) poverty areas. This work underscores the importance of a holistic, developmental approach to elucidating the interplay of social and environmental contexts that may create conditions for racial-ethnic and socioeconomic disparities in childhood asthma risk.
Collapse
Affiliation(s)
- Nicole Kravitz-Wirtz
- Department of Emergency Medicine, University of California, Davis School of Medicine, Sacramento, CA 95817, USA.
| | - Samantha Teixeira
- School of Social Work, Boston College, Chestnut Hill, MA 02467, USA.
| | - Anjum Hajat
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA 98195, USA.
| | - Bongki Woo
- School of Social Work, Boston College, Chestnut Hill, MA 02467, USA.
| | - Kyle Crowder
- Department of Sociology, University of Washington, Seattle, WA 98195, USA.
| | - David Takeuchi
- School of Social Work, Boston College, Chestnut Hill, MA 02467, USA.
| |
Collapse
|
30
|
Gouveia L, Betsholtz C, Andrae J. PDGF-A signaling is required for secondary alveolar septation and controls epithelial proliferation in the developing lung. Development 2018; 145:145/7/dev161976. [DOI: 10.1242/dev.161976] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 03/13/2018] [Indexed: 01/25/2023]
Abstract
ABSTRACT
Platelet-derived growth factor A (PDGF-A) signaling through PDGF receptor α is essential for alveogenesis. Previous studies have shown that Pdgfa−/− mouse lungs have enlarged alveolar airspace with absence of secondary septation, both distinctive features of bronchopulmonary dysplasia. To study how PDGF-A signaling is involved in alveogenesis, we generated lung-specific Pdgfa knockout mice (Pdgfafl/−; Spc-cre) and characterized their phenotype postnatally. Histological differences between mutant mice and littermate controls were visible after the onset of alveogenesis and maintained until adulthood. Additionally, we generated Pdgfafl/−; Spc-cre; PdgfraGFP/+ mice in which Pdgfra+ cells exhibit nuclear GFP expression. In the absence of PDGF-A, the number of PdgfraGFP+ cells was significantly decreased. In addition, proliferation of PdgfraGFP+ cells was reduced. During alveogenesis, PdgfraGFP+ myofibroblasts failed to form the α-smooth muscle actin rings necessary for alveolar secondary septation. These results indicate that PDGF-A signaling is involved in myofibroblast proliferation and migration. In addition, we show an increase in both the number and proliferation of alveolar type II cells in Pdgfafl/−; Spc-cre lungs, suggesting that the increased alveolar airspace is not caused solely by deficient myofibroblast function.
Collapse
Affiliation(s)
- Leonor Gouveia
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, SE-751 85 Uppsala, Sweden
| | - Christer Betsholtz
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, SE-751 85 Uppsala, Sweden
- Integrated Cardio Metabolic Centre, Karolinska Institute, SE-141 57 Huddinge, Sweden
| | - Johanna Andrae
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, SE-751 85 Uppsala, Sweden
| |
Collapse
|
31
|
Wright LS, Rifas-Shiman SL, Oken E, Litonjua AA, Gold DR. Prenatal and Early Life Fructose, Fructose-Containing Beverages, and Midchildhood Asthma. Ann Am Thorac Soc 2018; 15:217-224. [PMID: 29219619 PMCID: PMC5802621 DOI: 10.1513/annalsats.201707-530oc] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 12/08/2017] [Indexed: 11/20/2022] Open
Abstract
RATIONALE Cross-sectional studies have linked intake of high-fructose corn syrup-sweetened beverages with asthma in schoolchildren. OBJECTIVES To examine associations of maternal prenatal and early childhood intake of sugar-sweetened beverages and fructose with current asthma in midchildhood (median age, 7.7 yr). METHODS We assessed maternal pregnancy (first- and second-trimester average) and child (median age, 3.3 yr) intake of sugar-sweetened beverages and total fructose using food frequency questionnaires in 1,068 mother-child pairs from Project Viva, a prospective prebirth cohort. In a multivariable analysis, we examined associations of quartiles of maternal and child sugar-sweetened beverage, juice, and total fructose intake with child current asthma in midchildhood, assessed by questionnaire as ever having doctor-diagnosed asthma plus taking asthma medications or reporting wheezing in the past 12 months. RESULTS Higher maternal pregnancy sugar-sweetened beverage consumption (mean, 0.6 servings/d; range, 0-5) was associated with younger maternal age, nonwhite race/ethnicity, lower education and income, and higher prepregnancy body mass index. Adjusting for prepregnancy body mass index and other covariates, comparing quartile 4 with quartile 1, higher maternal pregnancy intake of sugar-sweetened beverages (odds ratio, 1.70; 95% confidence interval, 1.08-2.67) and total fructose (odds ratio, 1.58; 95% confidence interval, 0.98-2.53) were associated with greater odds of midchildhood current asthma (prevalence, 19%). Higher early childhood fructose intake (quartile 4 vs. quartile 1) was also associated with midchildhood current asthma in models adjusted for maternal sugar-sweetened beverages (odds ratio, 1.79; 95% confidence interval, 1.07-2.97) and after additional adjustment for midchildhood body mass index z-score (odds ratio, 1.77; 95% confidence interval, 1.06-2.95). CONCLUSIONS Higher sugar-sweetened beverage and fructose intake during pregnancy and in early childhood was associated with childhood asthma development independent of adiposity.
Collapse
Affiliation(s)
- Lakiea S. Wright
- Division of Rheumatology, Immunology, and Allergy
- Division of Immunology, Boston Children’s Hospital and Harvard Medical School, Boston, Massachusetts; and
| | - Sheryl L. Rifas-Shiman
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts
| | - Emily Oken
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts
| | - Augusto A. Litonjua
- Channing Division of Network Medicine, and
- Division of Pulmonary and Critical Care, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Diane R. Gold
- Channing Division of Network Medicine, and
- Division of Pulmonary and Critical Care, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
32
|
Hussain M, Xu C, Lu M, Wu X, Tang L, Wu X. Wnt/β-catenin signaling links embryonic lung development and asthmatic airway remodeling. Biochim Biophys Acta Mol Basis Dis 2017; 1863:3226-3242. [PMID: 28866134 DOI: 10.1016/j.bbadis.2017.08.031] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 08/10/2017] [Accepted: 08/29/2017] [Indexed: 12/23/2022]
Abstract
Embryonic lung development requires reciprocal endodermal-mesodermal interactions; mediated by various signaling proteins. Wnt/β-catenin is a signaling protein that exhibits the pivotal role in lung development, injury and repair while aberrant expression of Wnt/β-catenin signaling leads to asthmatic airway remodeling: characterized by hyperplasia and hypertrophy of airway smooth muscle cells, alveolar and vascular damage goblet cells metaplasia, and deposition of extracellular matrix; resulting in decreased lung compliance and increased airway resistance. The substantial evidence suggests that Wnt/β-catenin signaling links embryonic lung development and asthmatic airway remodeling. Here, we summarized the recent advances related to the mechanistic role of Wnt/β-catenin signaling in lung development, consequences of aberrant expression or deletion of Wnt/β-catenin signaling in expansion and progression of asthmatic airway remodeling, and linking early-impaired pulmonary development and airway remodeling later in life. Finally, we emphasized all possible recent potential therapeutic significance and future prospectives, that are adaptable for therapeutic intervention to treat asthmatic airway remodeling.
Collapse
Affiliation(s)
- Musaddique Hussain
- Department of Pharmacology, School of Medicine, Zhejiang University, Hangzhou City 310058, China; The Key Respiratory Drug Research Laboratory of China Food and Drug Administration, School of Medicine, Zhejiang University, Hangzhou City 310058, China.
| | - Chengyun Xu
- Department of Pharmacology, School of Medicine, Zhejiang University, Hangzhou City 310058, China; The Key Respiratory Drug Research Laboratory of China Food and Drug Administration, School of Medicine, Zhejiang University, Hangzhou City 310058, China
| | - Meiping Lu
- Department of Respiratory Medicine, the Affiliated Children Hospital, School of Medicine, Zhejiang University, Hangzhou City 310006, China
| | - Xiling Wu
- Department of Respiratory Medicine, the Affiliated Children Hospital, School of Medicine, Zhejiang University, Hangzhou City 310006, China.
| | - Lanfang Tang
- Department of Respiratory Medicine, the Affiliated Children Hospital, School of Medicine, Zhejiang University, Hangzhou City 310006, China
| | - Ximei Wu
- Department of Pharmacology, School of Medicine, Zhejiang University, Hangzhou City 310058, China; The Key Respiratory Drug Research Laboratory of China Food and Drug Administration, School of Medicine, Zhejiang University, Hangzhou City 310058, China.
| |
Collapse
|
33
|
Durrani-Kolarik S, Pool CA, Gray A, Heyob KM, Cismowski MJ, Pryhuber G, Lee LJ, Yang Z, Tipple TE, Rogers LK. miR-29b supplementation decreases expression of matrix proteins and improves alveolarization in mice exposed to maternal inflammation and neonatal hyperoxia. Am J Physiol Lung Cell Mol Physiol 2017; 313:L339-L349. [PMID: 28473324 PMCID: PMC5582933 DOI: 10.1152/ajplung.00273.2016] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 04/28/2017] [Accepted: 04/30/2017] [Indexed: 02/06/2023] Open
Abstract
Even with advances in the care of preterm infants, chronic lung disease or bronchopulmonary dysplasia (BPD) continues to be a significant pulmonary complication. Among those diagnosed with BPD, a subset of infants develop severe BPD with disproportionate pulmonary morbidities. In addition to decreased alveolarization, these infants develop obstructive and/or restrictive lung function due to increases in or dysregulation of extracellular matrix proteins. Analyses of plasma obtained from preterm infants during the first week of life indicate that circulating miR-29b is suppressed in infants that subsequently develop BPD and that decreased circulating miR-29b is inversely correlated with BPD severity. Our mouse model mimics the pathophysiology observed in infants with severe BPD, and we have previously reported decreased pulmonary miR-29b expression in this model. The current studies tested the hypothesis that adeno-associated 9 (AAV9)-mediated restoration of miR-29b in the developing lung will improve lung alveolarization and minimize the deleterious changes in matrix deposition. Pregnant C3H/HeN mice received an intraperitoneal LPS injection on embryonic day 16 and newborn pups were exposed to 85% oxygen from birth to 14 days of life. On postnatal day 3, AAV9-miR-29b or AAV9-control was administered intranasally. Mouse lung tissues were then analyzed for changes in miR-29 expression, alveolarization, and matrix protein levels and localization. Although only modest improvements in alveolarization were detected in the AAV9-miR29b-treated mice at postnatal day 28, treatment completely attenuated defects in matrix protein expression and localization. Our data suggest that miR-29b restoration may be one component of a novel therapeutic strategy to treat or prevent severe BPD in prematurely born infants.
Collapse
Affiliation(s)
- Shaheen Durrani-Kolarik
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
- Department of Pediatrics, The Ohio State University, Columbus, Ohio
| | - Caylie A Pool
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Ashley Gray
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Kathryn M Heyob
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Mary J Cismowski
- Center for Cardiovascular Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
- Department of Pediatrics, The Ohio State University, Columbus, Ohio
| | - Gloria Pryhuber
- Department of Pediatrics, University of Rochester Medical Center, Rochester, New York
| | - L James Lee
- The Center for Affordable Nanoengineering of Polymeric Biomedical Devices, The Ohio State University, Columbus, Ohio
| | - Zhaogang Yang
- The Center for Affordable Nanoengineering of Polymeric Biomedical Devices, The Ohio State University, Columbus, Ohio
| | - Trent E Tipple
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama; and
| | - Lynette K Rogers
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio;
- Department of Pediatrics, The Ohio State University, Columbus, Ohio
| |
Collapse
|
34
|
El Hajj EC, El Hajj MC, Ninh VK, Bradley JM, Claudino MA, Gardner JD. Detrimental role of lysyl oxidase in cardiac remodeling. J Mol Cell Cardiol 2017; 109:17-26. [DOI: 10.1016/j.yjmcc.2017.06.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 06/15/2017] [Accepted: 06/27/2017] [Indexed: 01/02/2023]
|
35
|
Basnayake TL, Morgan LC, Chang AB. The global burden of respiratory infections in indigenous children and adults: A review. Respirology 2017; 22:1518-1528. [PMID: 28758310 DOI: 10.1111/resp.13131] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/10/2017] [Accepted: 05/22/2017] [Indexed: 01/07/2023]
Abstract
This review article focuses on common lower respiratory infections (LRIs) in indigenous populations in both developed and developing countries, where data is available. Indigenous populations across the world share some commonalities including poorer health and socio-economic disadvantage compared with their non-indigenous counterparts. Generally, acute and chronic respiratory infections are more frequent and more severe in both indigenous children and adults, often resulting in substantial consequences including higher rates of bronchiectasis and poorer outcomes for patients with chronic obstructive pulmonary disease (COPD). Risk factors for the development of respiratory infections require recognition and action. These risk factors include but are not limited to socio-economic factors (e.g. education, household crowding and nutrition), environmental factors (e.g. smoke exposure and poor access to health care) and biological factors. Risk mitigation strategies should be delivered in a culturally appropriate manner and targeted to educate both individuals and communities at risk. Improving the morbidity and mortality of respiratory infections in indigenous people requires provision of best practice care and awareness of the scope of the problem by healthcare practitioners, governing bodies and policy makers.
Collapse
Affiliation(s)
- Thilini L Basnayake
- Department of Respiratory and Sleep Medicine, Royal Darwin Hospital, Darwin, Northern Territory, Australia.,School of Medicine, Flinders University, Darwin, Northern Territory, Australia
| | - Lucy C Morgan
- Department of Respiratory Medicine, Concord Hospital, Concord Clinical School, University of Sydney, Sydney, New South Wales, Australia
| | - Anne B Chang
- Child Health Division, Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia.,Department of Respiratory and Sleep Medicine, Lady Cilento Children's Hospital, Queensland University of Technology, Children's Health Queensland, Brisbane, Queensland, Australia
| |
Collapse
|
36
|
Prakash YS, Halayko AJ, Gosens R, Panettieri RA, Camoretti-Mercado B, Penn RB. An Official American Thoracic Society Research Statement: Current Challenges Facing Research and Therapeutic Advances in Airway Remodeling. Am J Respir Crit Care Med 2017; 195:e4-e19. [PMID: 28084822 DOI: 10.1164/rccm.201611-2248st] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Airway remodeling (AR) is a prominent feature of asthma and other obstructive lung diseases that is minimally affected by current treatments. The goals of this Official American Thoracic Society (ATS) Research Statement are to discuss the scientific, technological, economic, and regulatory issues that deter progress of AR research and development of therapeutics targeting AR and to propose approaches and solutions to these specific problems. This Statement is not intended to provide clinical practice recommendations on any disease in which AR is observed and/or plays a role. METHODS An international multidisciplinary group from within academia, industry, and the National Institutes of Health, with expertise in multimodal approaches to the study of airway structure and function, pulmonary research and clinical practice in obstructive lung disease, and drug discovery platforms was invited to participate in one internet-based and one face-to-face meeting to address the above-stated goals. Although the majority of the analysis related to AR was in asthma, AR in other diseases was also discussed and considered in the recommendations. A literature search of PubMed was performed to support conclusions. The search was not a systematic review of the evidence. RESULTS Multiple conceptual, logistical, economic, and regulatory deterrents were identified that limit the performance of AR research and impede accelerated, intensive development of AR-focused therapeutics. Complementary solutions that leverage expertise of academia and industry were proposed to address them. CONCLUSIONS To date, numerous factors related to the intrinsic difficulty in performing AR research, and economic forces that are disincentives for the pursuit of AR treatments, have thwarted the ability to understand AR pathology and mechanisms and to address it clinically. This ATS Research Statement identifies potential solutions for each of these factors and emphasizes the importance of educating the global research community as to the extent of the problem as a critical first step in developing effective strategies for: (1) increasing the extent and impact of AR research and (2) developing, testing, and ultimately improving drugs targeting AR.
Collapse
|
37
|
Bjørke-Monsen AL, Vollsæter M, Ueland PM, Markestad T, Øymar K, Halvorsen T. Increased Bronchial Hyperresponsiveness and Higher Asymmetric Dimethylarginine Levels after Fetal Growth Restriction. Am J Respir Cell Mol Biol 2017; 56:83-89. [PMID: 27574738 DOI: 10.1165/rcmb.2016-0210oc] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Bronchial hyperresponsiveness (BHR), a feature of asthma, is observed in preterm-born children and has been linked to intrauterine growth restriction. BHR is mediated via airway smooth muscle tone and is modulated by the autonomic nervous system, nitric oxide, and airway inflammation. Interactions among these factors are insufficiently understood. Methacholine-induced BHR (Met-BHR), fractional exhaled NO, and systemic soluble markers of nitric oxide metabolism and inflammation were determined in a population-based sample of 57 eleven-year-old children born extremely preterm (gestational age [GA] < 28 wk) or with extremely low birth weight (<1,000 g), and in a matched normal-birth weight term-born control group (n = 54). Bronchopulmonary dysplasia (BPD) was defined as the need for oxygen treatment at a GA of 36 weeks. In preterm-born children, birth weight below the 10th percentile for GA was associated with increased Met-BHR and higher plasma levels of asymmetric dimethylarginine (ADMA), with an increased odds ratio for being in the upper tertile of Met-BHR (11.8; 95% confidence interval, 3.3-42.4) and of ADMA (5.2; 95% confidence interval, 1.3-20.3). Met-BHR was correlated to ADMA level (r = 0.27, P = 0.007). There were no significant differences in Met-BHR, fractional exhaled NO, or z-FEV1 according to BPD status. No associations with systemic soluble markers of inflammation were observed for Met-BHR, birth, or BPD status. Intrauterine growth restriction in preterm-born children was associated with substantially increased Met-BHR and higher ADMA levels, suggesting altered nitric oxide regulation. These findings contribute to the understanding of the consequences from an adverse fetal environment; they should also be tested in term-born children.
Collapse
Affiliation(s)
| | - Maria Vollsæter
- 2 Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
| | - Per M Ueland
- 1 Laboratory of Clinical Biochemistry, and.,3 Bevital A/S, Bergen, Norway
| | - Trond Markestad
- 4 Department of Clinical Science, University of Bergen, Bergen, Norway; and
| | - Knut Øymar
- 4 Department of Clinical Science, University of Bergen, Bergen, Norway; and.,5 Department of Pediatrics, Stavanger University Hospital, Stavanger, Norway
| | - Thomas Halvorsen
- 2 Department of Pediatrics, Haukeland University Hospital, Bergen, Norway.,4 Department of Clinical Science, University of Bergen, Bergen, Norway; and
| |
Collapse
|
38
|
Ferrero A, Esplugues A, Estarlich M, Llop S, Cases A, Mantilla E, Ballester F, Iñiguez C. Infants' indoor and outdoor residential exposure to benzene and respiratory health in a Spanish cohort. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 222:486-494. [PMID: 28063708 DOI: 10.1016/j.envpol.2016.11.065] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 11/20/2016] [Accepted: 11/21/2016] [Indexed: 06/06/2023]
Abstract
Benzene exposure represents a potential risk for children's health. Apart from being a known carcinogen for humans (group 1 according to IARC), there is scientific evidence suggesting a relationship between benzene exposure and respiratory problems in children. But results are still inconclusive and inconsistent. This study aims to assess the determinants of exposure to indoor and outdoor residential benzene levels and its relationship with respiratory health in infants. Participants were 1-year-old infants (N = 352) from the INMA cohort from Valencia (Spain). Residential benzene exposure levels were measured inside and outside dwellings by means of passive samplers in a 15-day campaign. Persistent cough, low respiratory tract infections and wheezing during the first year of life, and covariates (dwelling traits, lifestyle factors and sociodemographic data) were obtained from parental questionnaires. Multiple Tobit regression and logistic regression models were performed to assess factors associated to residential exposure levels and health associations, respectively. Indoor levels were higher than outdoor ones (1.46 and 0.77 μg/m3, respectively; p < 0.01). A considerable percentage of dwellings, 42% and 21% indoors and outdoors respectively, surpassed the WHO guideline of 1.7 μg/m3 derived from a lifetime risk of leukemia above 1/100 000. Monitoring season, maternal country of birth and parental tobacco consumption were associated with residential benzene exposure (indoor and outdoors). Additionally, indoor levels were associated with mother's age and type of heating, and outdoor levels were linked with zone of residence and distance from industrial areas. After adjustment for confounding factors, no significant associations were found between residential benzene exposure levels and respiratory health in infants. Hence, our study did not support the hypothesis for the benzene exposure effect on respiratory health in children. Even so, it highlights a public health concern related to the personal exposure levels, since a considerable number of children surpassed the abovementioned WHO guideline for benzene exposure.
Collapse
Affiliation(s)
- Amparo Ferrero
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I, Universitat de València, Avenida de Catalunya 21, 46020, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Melchor Fernández Almagro, 3-5, 28029, Madrid, Spain.
| | - Ana Esplugues
- Faculty of Nursing and Chiropody, Universitat de València, Av. Blasco Ibáñez, 13, 46010 Valencia, Spain; Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I, Universitat de València, Avenida de Catalunya 21, 46020, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Melchor Fernández Almagro, 3-5, 28029, Madrid, Spain
| | - Marisa Estarlich
- Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Melchor Fernández Almagro, 3-5, 28029, Madrid, Spain; Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I, Universitat de València, Avenida de Catalunya 21, 46020, Valencia, Spain
| | - Sabrina Llop
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I, Universitat de València, Avenida de Catalunya 21, 46020, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Melchor Fernández Almagro, 3-5, 28029, Madrid, Spain
| | - Amparo Cases
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I, Universitat de València, Avenida de Catalunya 21, 46020, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Melchor Fernández Almagro, 3-5, 28029, Madrid, Spain
| | - Enrique Mantilla
- Center for Mediterranean Environmental Studies, (CEAM), Parque Tecnológico, Charles R. Darwin, 14, 46980 Paterna, Valencia, Spain
| | - Ferran Ballester
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I, Universitat de València, Avenida de Catalunya 21, 46020, Valencia, Spain; Faculty of Nursing and Chiropody, Universitat de València, Av. Blasco Ibáñez, 13, 46010 Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Melchor Fernández Almagro, 3-5, 28029, Madrid, Spain
| | - Carmen Iñiguez
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I, Universitat de València, Avenida de Catalunya 21, 46020, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Melchor Fernández Almagro, 3-5, 28029, Madrid, Spain
| |
Collapse
|
39
|
Kim TB, Park IN. Do Birth Season and Sex Affect Adult Lung Function as Early Life Factors? Health (London) 2017. [DOI: 10.4236/health.2017.92015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
40
|
Robbins ME, Dakhlallah D, Marsh CB, Rogers LK, Tipple TE. Of mice and men: correlations between microRNA-17∼92 cluster expression and promoter methylation in severe bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2016; 311:L981-L984. [PMID: 27694474 PMCID: PMC5130535 DOI: 10.1152/ajplung.00390.2016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 09/28/2016] [Indexed: 11/22/2022] Open
Abstract
We previously demonstrated that decreased miR-17∼92 cluster expression was 1) present in lungs from human infants who died with bronchopulmonary dysplasia (BPD); 2) inversely correlated with DNA methyltransferase (DNMT) expression and promoter methylation; and 3) correlated with a subsequent diagnosis of BPD at 36 wk gestational age. We tested the hypothesis that plasma miR-17 levels would be lowest in infants who ultimately develop severe BPD. Secondly, we utilized our well-characterized murine model of severe BPD that combines perinatal inflammation with postnatal hyperoxia to test the hypothesis that alterations in lung miR-17∼92, DNMT, and promoter methylation in our model would mirror our findings in tissues from premature human infants. Plasma was obtained during the first 5 days of life from premature infants born ≤32 wk gestation. Lung tissues were harvested from mice exposed to maternal inflammation and neonatal hyperoxia for 14 days after birth. miR-17∼92 cluster expression and DNA methyltransferase expression were measured by qRT-PCR, and promoter methylation was assessed by Methyl-Profiler assay. Plasma miR-17 levels are significantly lower in the first week of life in human infants who develop severe BPD compared with mild or moderate BPD. Data from our severe BPD murine model reveal that lung miR-17∼92 cluster expression is significantly attenuated, and levels inversely correlated with DNMT expression and miR-17∼92 cluster promoter methylation. Collectively, our data support a plausible role for epigenetically altered miR-17∼92 cluster in the pathogenesis of severe BPD.
Collapse
Affiliation(s)
- Mary E Robbins
- Division of Neonatology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Duaa Dakhlallah
- Departments of Microbiology, Immunology, and Cell Biology, West Virginia University, Morgantown, West Virginia
| | - Clay B Marsh
- Departments of Microbiology, Immunology, and Cell Biology, West Virginia University, Morgantown, West Virginia
| | - Lynette K Rogers
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio; and
| | - Trent E Tipple
- Division of Neonatology, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
| |
Collapse
|
41
|
Prakash YS. Emerging concepts in smooth muscle contributions to airway structure and function: implications for health and disease. Am J Physiol Lung Cell Mol Physiol 2016; 311:L1113-L1140. [PMID: 27742732 DOI: 10.1152/ajplung.00370.2016] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 10/06/2016] [Indexed: 12/15/2022] Open
Abstract
Airway structure and function are key aspects of normal lung development, growth, and aging, as well as of lung responses to the environment and the pathophysiology of important diseases such as asthma, chronic obstructive pulmonary disease, and fibrosis. In this regard, the contributions of airway smooth muscle (ASM) are both functional, in the context of airway contractility and relaxation, as well as synthetic, involving production and modulation of extracellular components, modulation of the local immune environment, cellular contribution to airway structure, and, finally, interactions with other airway cell types such as epithelium, fibroblasts, and nerves. These ASM contributions are now found to be critical in airway hyperresponsiveness and remodeling that occur in lung diseases. This review emphasizes established and recent discoveries that underline the central role of ASM and sets the stage for future research toward understanding how ASM plays a central role by being both upstream and downstream in the many interactive processes that determine airway structure and function in health and disease.
Collapse
Affiliation(s)
- Y S Prakash
- Departments of Anesthesiology, and Physiology & Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| |
Collapse
|
42
|
Deng Q, Lu C, Li Y, Sundell J. Exposure to outdoor air pollution during trimesters of pregnancy and childhood asthma, allergic rhinitis, and eczema. ENVIRONMENTAL RESEARCH 2016; 150:119-127. [PMID: 27281689 DOI: 10.1016/j.envres.2016.05.050] [Citation(s) in RCA: 182] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 05/26/2016] [Accepted: 05/28/2016] [Indexed: 05/19/2023]
Abstract
BACKGROUND Mounting evidence suggests that exposure to ambient air pollution is associated with the development of childhood allergic diseases, but the effect of prenatal exposure to air pollution on the risk of childhood asthma and allergy is unclear. OBJECTIVES We evaluated the association between maternal exposure to outdoor air pollution during different trimesters of pregnancy and incidence of asthma, allergic rhinitis, and eczema in 2598 preschool children aged 3-6 years in China. METHODS Children's lifetime incidence of allergic diseases was obtained using questionnaire. Individual exposure to outdoor air pollutants during trimesters of pregnancy was estimated by an inverse distance weighted (IDW) method based on the measured concentrations at monitoring stations. We used multiple logistic regression method to estimate the odds ratio (OR) of asthma, allergic rhinitis, and eczema for per interquartile range (IQR) increase in the exposure to air pollutant in each trimester, which was adjusted for the effect of other air pollutants and its effect in other trimesters by a multi-pollutant/trimester model. RESULTS Incidence of asthma (6.8%), allergic rhinitis (7.3%), and eczema (28.6%) in children was associated with maternal exposure to traffic-related pollutant NO2 during entire pregnancy with OR (95% confidence interval [CI]) respectively 1.63 (0.99-2.70), 1.69 (1.03-2.77), and 1.37 (1.04-1.80). After adjustment for other pollutants and trimesters, we found the association was significant only in specific trimester: the first trimester for eczema (1.54, 1.14-2.09), the second trimester for asthma (1.72, 1.02-2.97), and the third trimester for allergic rhinitis (1.77, 1.09-2.89). Sensitivity analysis indicated that the trimester sensitive to the development of allergic diseases was stable. CONCLUSION Maternal exposure to traffic-related air pollutant NO2 during pregnancy, especially in specific trimesters, is associated with an increased risk of developing asthma, rhinitis, and eczema in children. Our results support the hypothesis that childhood allergic diseases originate in fetal life and are triggered by traffic-related air pollution in sensitive trimesters.
Collapse
Affiliation(s)
- Qihong Deng
- School of Energy Science and Engineering, Central South University, Changsha, Hunan, China; School of Public Health, Central South University, Changsha, Hunan, China; Institute of Environmental Health, Central South University, Changsha, Hunan, China.
| | - Chan Lu
- School of Energy Science and Engineering, Central South University, Changsha, Hunan, China
| | - Yuguo Li
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, China
| | - Jan Sundell
- School of Energy Science and Engineering, Central South University, Changsha, Hunan, China; School of Architecture, Tsinghua University, Beijing, China
| |
Collapse
|
43
|
Beauchemin KJ, Wells JM, Kho AT, Philip VM, Kamir D, Kohane IS, Graber JH, Bult CJ. Temporal dynamics of the developing lung transcriptome in three common inbred strains of laboratory mice reveals multiple stages of postnatal alveolar development. PeerJ 2016; 4:e2318. [PMID: 27602285 PMCID: PMC4991849 DOI: 10.7717/peerj.2318] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/12/2016] [Indexed: 12/12/2022] Open
Abstract
To characterize temporal patterns of transcriptional activity during normal lung development, we generated genome wide gene expression data for 26 pre- and post-natal time points in three common inbred strains of laboratory mice (C57BL/6J, A/J, and C3H/HeJ). Using Principal Component Analysis and least squares regression modeling, we identified both strain-independent and strain-dependent patterns of gene expression. The 4,683 genes contributing to the strain-independent expression patterns were used to define a murine Developing Lung Characteristic Subtranscriptome (mDLCS). Regression modeling of the Principal Components supported the four canonical stages of mammalian embryonic lung development (embryonic, pseudoglandular, canalicular, saccular) defined previously by morphology and histology. For postnatal alveolar development, the regression model was consistent with four stages of alveolarization characterized by episodic transcriptional activity of genes related to pulmonary vascularization. Genes expressed in a strain-dependent manner were enriched for annotations related to neurogenesis, extracellular matrix organization, and Wnt signaling. Finally, a comparison of mouse and human transcriptomics from pre-natal stages of lung development revealed conservation of pathways associated with cell cycle, axon guidance, immune function, and metabolism as well as organism-specific expression of genes associated with extracellular matrix organization and protein modification. The mouse lung development transcriptome data generated for this study serves as a unique reference set to identify genes and pathways essential for normal mammalian lung development and for investigations into the developmental origins of respiratory disease and cancer. The gene expression data are available from the Gene Expression Omnibus (GEO) archive (GSE74243). Temporal expression patterns of mouse genes can be investigated using a study specific web resource (http://lungdevelopment.jax.org).
Collapse
Affiliation(s)
- Kyle J. Beauchemin
- The Jackson Laboratory, Bar Harbor, ME, United States
- Graduate School of Biomedical Sciences and Engineering, The University of Maine, Orono, ME, United States
| | | | - Alvin T. Kho
- Computational Health Informatics Program, Boston Children’s Hospital, Boston, MA, United States
| | | | - Daniela Kamir
- The Jackson Laboratory, Bar Harbor, ME, United States
| | - Isaac S. Kohane
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA, United States
| | | | - Carol J. Bult
- The Jackson Laboratory, Bar Harbor, ME, United States
| |
Collapse
|
44
|
Ingram JL, Slade D, Church TD, Francisco D, Heck K, Sigmon RW, Ghio M, Murillo A, Firszt R, Lugogo NL, Que L, Sunday ME, Kraft M. Role of Matrix Metalloproteinases-1 and -2 in Interleukin-13-Suppressed Elastin in Airway Fibroblasts in Asthma. Am J Respir Cell Mol Biol 2016; 54:41-50. [PMID: 26074138 DOI: 10.1165/rcmb.2014-0290oc] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Elastin synthesis and degradation in the airway and lung parenchyma contribute to airway mechanics, including airway patency and elastic recoil. IL-13 mediates many features of asthma pathobiology, including airway remodeling, but the effects of IL-13 on elastin architecture in the airway wall are not known. We hypothesized that IL-13 modulates elastin expression in airway fibroblasts from subjects with allergic asthma. Twenty-five subjects with mild asthma (FEV1, 89 ± 3% predicted) and 30 normal control subjects (FEV1, 102 ± 2% predicted) underwent bronchoscopy with endobronchial biopsy. Elastic fibers were visualized in airway biopsy specimens using Weigert's resorcin-fuchsin elastic stain. Airway fibroblasts were exposed to IL-13; a pan-matrix metalloproteinase (MMP) inhibitor (GM6001); specific inhibitors to MMP-1, -2, -3, and -8; and combinations of IL-13 with MMP inhibitors in separate conditions in serum-free media for 48 hours. Elastin (ELN) expression as well as MMP secretion and activity were quantified. Results of this study show that elastic fiber staining of airway biopsy tissue was significantly associated with methacholine PC20 (i.e., the provocative concentration of methacholine resulting in a 20% fall in FEV1 levels) in patients with asthma. IL-13 significantly suppressed ELN expression in asthmatic airway fibroblasts as compared with normal control fibroblasts. The effect of IL-13 on ELN expression was significantly correlated with postbronchodilator FEV1/FVC in patients with asthma. MMP inhibition significantly stimulated ELN expression in patients with asthma as compared with normal control subjects. Specific inhibition of MMP-1 and MMP-2, but not MMP-3 or MMP-8, reversed the IL-13-induced suppression of ELN expression. In asthma, MMP-1 and MMP-2 mediate IL-13-induced suppression of ELN expression in airway fibroblasts.
Collapse
Affiliation(s)
| | | | | | | | - Karissa Heck
- 3 Pathology, Duke University Medical Center, Durham, North Carolina
| | | | | | | | | | | | | | - Mary E Sunday
- Departments of 1 Medicine.,3 Pathology, Duke University Medical Center, Durham, North Carolina
| | | |
Collapse
|
45
|
Ke H, Masoumi KC, Ahlqvist K, Seckl MJ, Rydell-Törmänen K, Massoumi R. Nemo-like kinase regulates the expression of vascular endothelial growth factor (VEGF) in alveolar epithelial cells. Sci Rep 2016; 6:23987. [PMID: 27035511 PMCID: PMC4817507 DOI: 10.1038/srep23987] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 03/17/2016] [Indexed: 01/08/2023] Open
Abstract
The canonical Wnt signaling can be silenced either through β-catenin-mediated ubiquitination and degradation or through phosphorylation of Tcf and Lef by nemo-like kinase (NLK). In the present study, we generated NLK deficient animals and found that these mice become cyanotic shortly before death because of lung maturation defects. NLK-/- lungs exhibited smaller and compressed alveoli and the mesenchyme remained thick and hyperplastic. This phenotype was caused by epithelial activation of vascular endothelial growth factor (VEGF) via recruitment of Lef1 to the promoter of VEGF. Elevated expression of VEGF and activation of the VEGF receptor through phosphorylation promoted an increase in the proliferation rate of epithelial and endothelial cells. In summary, our study identifies NLK as a novel signaling molecule for proper lung development through the interconnection between epithelial and endothelial cells during lung morphogenesis.
Collapse
Affiliation(s)
- Hengning Ke
- Molecular Tumor Pathology, Department of Laboratory Medicine, Lund University, Sweden
| | | | - Kristofer Ahlqvist
- Molecular Tumor Pathology, Department of Laboratory Medicine, Lund University, Sweden
| | - Michael J Seckl
- Department of Medical Oncology, Imperial College Healthcare NHS Trust and Imperial College London, London, UK
| | | | - Ramin Massoumi
- Molecular Tumor Pathology, Department of Laboratory Medicine, Lund University, Sweden
| |
Collapse
|
46
|
Minelli C, Dean CH, Hind M, Alves AC, Amaral AFS, Siroux V, Huikari V, Soler Artigas M, Evans DM, Loth DW, Bossé Y, Postma DS, Sin D, Thompson J, Demenais F, Henderson J, Bouzigon E, Jarvis D, Järvelin MR, Burney P. Association of Forced Vital Capacity with the Developmental Gene NCOR2. PLoS One 2016; 11:e0147388. [PMID: 26836265 PMCID: PMC4737618 DOI: 10.1371/journal.pone.0147388] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 01/04/2016] [Indexed: 12/31/2022] Open
Abstract
Background Forced Vital Capacity (FVC) is an important predictor of all-cause mortality in the absence of chronic respiratory conditions. Epidemiological evidence highlights the role of early life factors on adult FVC, pointing to environmental exposures and genes affecting lung development as risk factors for low FVC later in life. Although highly heritable, a small number of genes have been found associated with FVC, and we aimed at identifying further genetic variants by focusing on lung development genes. Methods Per-allele effects of 24,728 SNPs in 403 genes involved in lung development were tested in 7,749 adults from three studies (NFBC1966, ECRHS, EGEA). The most significant SNP for the top 25 genes was followed-up in 46,103 adults (CHARGE and SpiroMeta consortia) and 5,062 children (ALSPAC). Associations were considered replicated if the replication p-value survived Bonferroni correction (p<0.002; 0.05/25), with a nominal p-value considered as suggestive evidence. For SNPs with evidence of replication, effects on the expression levels of nearby genes in lung tissue were tested in 1,111 lung samples (Lung eQTL consortium), with further functional investigation performed using public epigenomic profiling data (ENCODE). Results NCOR2-rs12708369 showed strong replication in children (p = 0.0002), with replication unavailable in adults due to low imputation quality. This intronic variant is in a strong transcriptional enhancer element in lung fibroblasts, but its eQTL effects could not be tested due to low imputation quality in the eQTL dataset. SERPINE2-rs6754561 replicated at nominal level in both adults (p = 0.036) and children (p = 0.045), while WNT16-rs2707469 replicated at nominal level only in adults (p = 0.026). The eQTL analyses showed association of WNT16-rs2707469 with expression levels of the nearby gene CPED1. We found no statistically significant eQTL effects for SERPINE2-rs6754561. Conclusions We have identified a new gene, NCOR2, in the retinoic acid signalling pathway pointing to a role of vitamin A metabolism in the regulation of FVC. Our findings also support SERPINE2, a COPD gene with weak previous evidence of association with FVC, and suggest WNT16 as a further promising candidate.
Collapse
Affiliation(s)
- Cosetta Minelli
- Respiratory Epidemiology, Occupational Medicine and Public Health, National Heart and Lung Institute, Imperial College, London, United Kingdom
- * E-mail:
| | - Charlotte H. Dean
- Leukocyte Biology, National Heart and Lung Institute, Imperial College London, London, United Kingdom
- Mammalian Genetics Unit, MRC Harwell, Oxon, United Kingdom
| | - Matthew Hind
- Respiratory Department, Royal Brompton and Harefield NHS Foundation Trust, London, United Kingdom
| | - Alexessander Couto Alves
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
| | - André F. S. Amaral
- Respiratory Epidemiology, Occupational Medicine and Public Health, National Heart and Lung Institute, Imperial College, London, United Kingdom
- MRC-PHE Centre for Environment & Health, London, United Kingdom
| | - Valerie Siroux
- Univ. Grenoble Alpes, IAB, Team of Environmental Epidemiology applied to Reproduction and Respiratory Health, F-38000, Grenoble, France
- INSERM, IAB, Team of Environmental Epidemiology applied to Reproduction and Respiratory Health, F-38000, Grenoble, France
- CHU de Grenoble, IAB, Team of Environmental Epidemiology applied to Reproduction and Respiratory Health, F-38000, Grenoble, France
| | | | - María Soler Artigas
- Genetic Epidemiology Group, Department of Health Sciences, University of Leicester, Leicester, United Kingdom
| | - David M. Evans
- University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Australia
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, United Kingdom
| | - Daan W. Loth
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Yohan Bossé
- Institut universitaire de cardiologie et de pneumologie de Québec, Department of Molecular Medicine, Laval University, Québec, Canada
| | - Dirkje S. Postma
- Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Don Sin
- The University of British Columbia Center for Heart Lung Innovation, St-Paul’s Hospital, Vancouver, Canada
| | - John Thompson
- Department of Health Sciences, University of Leicester, Leicester, United Kingdom
| | - Florence Demenais
- INSERM, UMRS-946, Genetic Variation of Human Diseases Unit, Paris, France
- Univ. Paris Diderot, Sorbonne Paris Cité, Institut Universitaire d’Hématologie, F-75007, Paris, France
| | - John Henderson
- School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom
| | - SpiroMeta consortium
- SpiroMeta consortium, Genetic Epidemiology Group, Department of Health Sciences, University of Leicester, Leicester, United Kingdom
| | - CHARGE consortium
- CHARGE consortium, Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, United States of America
| | - Emmanuelle Bouzigon
- INSERM, UMRS-946, Genetic Variation of Human Diseases Unit, Paris, France
- Univ. Paris Diderot, Sorbonne Paris Cité, Institut Universitaire d’Hématologie, F-75007, Paris, France
| | - Deborah Jarvis
- Respiratory Epidemiology, Occupational Medicine and Public Health, National Heart and Lung Institute, Imperial College, London, United Kingdom
- MRC-PHE Centre for Environment & Health, London, United Kingdom
| | - Marjo-Riitta Järvelin
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
- MRC-PHE Centre for Environment & Health, London, United Kingdom
- Biocenter Oulu, University of Oulu, Oulu, Finland
- Center for Life Course Epidemiology, Faculty of Medicine, P.O. Box 5000, FI-90014 University of Oulu, Oulu, Finland
- Unit of Primary Care, Oulu University Hospital, Kajaanintie 50, P.O. Box 20, FI-90220, Oulu, 90029 OYS, Finland
| | - Peter Burney
- Respiratory Epidemiology, Occupational Medicine and Public Health, National Heart and Lung Institute, Imperial College, London, United Kingdom
- MRC-PHE Centre for Environment & Health, London, United Kingdom
| |
Collapse
|
47
|
Abstract
BACKGROUND Recent studies show that preterm birth is associated with hypertension in later life. The renin-angiotensin system (RAS) during pregnancy influences fetal growth and development. In the current study, we investigated the impact of fetal as well as maternal angiotensin (1-7) [Ang (1-7)] and angiotensin II (Ang II) plasma concentrations on the risk of preterm birth. METHODS Three hundred and nine pregnant women were prospectively included into the study. The pregnant women were divided into two groups, for example, preterm birth of lower than 37 gestational weeks (n = 17) and full-term birth of 37 gestational weeks or more (n = 292). Maternal and neonatal plasma Ang (1-7) and Ang II concentrations were analyzed at birth from maternal venous blood and umbilical cord blood, respectively. Risk factors for premature birth were determined by multiple logistic regression analysis. RESULTS Fetal and maternal plasma Ang (1-7) concentrations in the preterm group were lower than those of the term group fetal Ang (1-7) preterm birth: 486.15 ± 337.34 ng/l and fetal Ang (1-7) term birth: 833.84 ± 698.12 ng/l and maternal Ang (1-7) preterm birth: 399.86 ± 218.93 ng/l; maternal Ang (1-7) term birth: 710.34 ± 598.22 ng/l. Multiple logistic regression analysis considering confounding factors revealed that preeclampsia (P < 0.001), premature rupture of membranes (P = 0.001), lower concentration of maternal Ang (1-7) (P = 0.013) and fetal plasma Ang (1-7) (P = 0.032) were independently associated with preterm birth. We could furthermore demonstrate that the maternal Ang (1-7)/Ang II ratio is independently associated with gestational hypertension or preeclampsia, factors causing preterm birth. CONCLUSIONS Lower concentrations of maternal and fetal Ang (1-7) are independently associated with preterm birth - a risk factor of hypertension in later life.
Collapse
|
48
|
Joannes A, Brayer S, Besnard V, Marchal-Sommé J, Jaillet M, Mordant P, Mal H, Borie R, Crestani B, Mailleux AA. FGF9 and FGF18 in idiopathic pulmonary fibrosis promote survival and migration and inhibit myofibroblast differentiation of human lung fibroblasts in vitro. Am J Physiol Lung Cell Mol Physiol 2016; 310:L615-29. [PMID: 26773067 DOI: 10.1152/ajplung.00185.2015] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 01/10/2016] [Indexed: 12/15/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is characterized by an accumulation of extracellular matrix proteins and fibroblasts in the distal airways. Key developmental lung signaling pathways are reactivated in IPF. For instance, fibroblast growth factor 9 (FGF9) and FGF18, involved in epithelial-mesenchymal interactions, are critical for lung development. We evaluated the expression of FGF9, FGF18, and FGF receptors (FGFRs) in lung tissue from controls and IPF patients and assessed their effect on proliferation, survival, migration, and differentiation of control and IPF human lung fibroblasts (HLFs). FGF9, FGF18, and all FGFRs were present in the remodeled alveolar epithelium close to the fibroblast foci in IPF lungs. FGFR3 was generally detected in fibroblast foci by immunohistochemistry. In vitro, HLFs mainly expressed mesenchyme-associated FGFR isoforms (FGFR1c and FGFR3c) and FGFR4. FGF9 did not affect fibroblast proliferation, whereas FGF18 inhibited cell growth in control fibroblasts. FGF9 and FGF18 decreased Fas-ligand-induced apoptosis in control but not in IPF fibroblasts. FGF9 prevented transforming growth factor β1-induced myofibroblast differentiation. FGF9 and FGF18 increased the migratory capacities of HLF, and FGF9 actively modulated matrix metalloproteinase activity. In addition, FGFR3 inhibition by small interfering RNA impacted p-ERK activation by FGF9 and FGF18 and their effects on differentiation and migration. These results identify FGF9 as an antiapoptotic and promigratory growth factor on HLF, maintaining fibroblasts in an undifferentiated state. The biological effects of FGF9 and FGF18 were partially driven by FGFR3. FGF18 was a less potent molecule. Both growth factors likely contribute to the fibrotic process in vivo.
Collapse
Affiliation(s)
- Audrey Joannes
- INSERM U1152, DHU FIRE, Labex Inflamex, Université Paris Diderot, Sorbonne Paris Cité
| | - Stéphanie Brayer
- INSERM U1152, DHU FIRE, Labex Inflamex, Université Paris Diderot, Sorbonne Paris Cité
| | - Valérie Besnard
- INSERM U1152, DHU FIRE, Labex Inflamex, Université Paris Diderot, Sorbonne Paris Cité
| | - Joëlle Marchal-Sommé
- INSERM U1152, DHU FIRE, Labex Inflamex, Université Paris Diderot, Sorbonne Paris Cité
| | - Madeleine Jaillet
- INSERM U1152, DHU FIRE, Labex Inflamex, Université Paris Diderot, Sorbonne Paris Cité
| | - Pierre Mordant
- INSERM U1152, DHU FIRE, Labex Inflamex, Université Paris Diderot, Sorbonne Paris Cité, Assistance Publique-Hôpitaux de Paris, Hôpital Bichat, Service de Chirurgie Thoracique et Vasculaire, and
| | - Hervé Mal
- INSERM U1152, DHU FIRE, Labex Inflamex, Université Paris Diderot, Sorbonne Paris Cité, Assistance Publique-Hôpitaux de Paris, Hôpital Bichat, Service de Pneumologie et Transplantation, Paris, France
| | - Raphael Borie
- INSERM U1152, DHU FIRE, Labex Inflamex, Université Paris Diderot, Sorbonne Paris Cité, Assistance Publique-Hôpitaux de Paris, Hôpital Bichat, Service de Pneumologie A
| | - Bruno Crestani
- INSERM U1152, DHU FIRE, Labex Inflamex, Université Paris Diderot, Sorbonne Paris Cité, Assistance Publique-Hôpitaux de Paris, Hôpital Bichat, Service de Pneumologie A,
| | - Arnaud A Mailleux
- INSERM U1152, DHU FIRE, Labex Inflamex, Université Paris Diderot, Sorbonne Paris Cité
| |
Collapse
|
49
|
|
50
|
Association between Maturation and Aging and Pulmonary Responses in Animal Models of Lung Injury. Anesthesiology 2015; 123:389-408. [DOI: 10.1097/aln.0000000000000687] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Abstract
Background:
Advanced age is associated with an increased susceptibility and mortality of the acute respiratory distress syndrome. This may be due to the progressive changes in innate immune responses and intrinsic properties of the lung that occur during the process of aging. Therefore, this study assesses the association between maturation and aging and pulmonary responses to injury in animal models of lung injury.
Methods:
A systematic search was conducted in PubMed, EMBASE (up to June 2014) and in the references of relevant articles to identify the studies using in vivo models of lung injury caused by an acute pulmonary insult, in which at least two age groups were compared. Because methodological diversity precluded combining these studies in a quantitative meta-analysis, data are presented based on the qualitative comparison with the adult group.
Results:
Of the 2,840 identified studies, 51 were included in this review. Most studies showed that, in response to a pulmonary insult, increasing age is associated with more pulmonary inflammation, edema, alveolar damage, and higher mortality. In addition, results indicate the existence of age-dependent changes in key components of the intracellular signaling pathways involved in the inflammatory response.
Conclusions:
Increasing age seems to be correlated with exaggerated pulmonary responses to injury, ultimately leading to more severe lung injury. Pulmonary inflammation seems relatively suppressed in infants/juveniles, whereas in the middle aged/elderly, the inflammatory response seems delayed but aggravated. This implies that investigators and clinicians need to use caution about extrapolating results from adolescent or youngadult animals to pediatric or elderly patients in clinical practice.
Collapse
|