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Wafriy CI, Kamsani YS, Nor-Ashikin MNK. Inflammation and oxidative stress impair preimplantation embryonic morphogenesis in allergic asthma model. Cells Dev 2023; 175:203864. [PMID: 37321350 DOI: 10.1016/j.cdev.2023.203864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/16/2023] [Accepted: 06/11/2023] [Indexed: 06/17/2023]
Abstract
The incidence of allergic asthma has been increasing worldwide in recent decades. Also, an increasing number of women are suffering from poor pregnancy outcome. However, the causal relationship between allergic asthma and embryonic growth in terms of cell morphogenesis has not been well elucidated. Here, we investigated the impact of allergic asthma on the morphogenesis of preimplantation embryos. Twenty-four female BALB/c were randomly divided into control (PBS), 50-μg (OVA1), 100-μg (OVA2) and 150-μg (OVA3). On Days-0 and -14, mice were induced intraperitoneally (i.p) with ovalbumin (OVA). On Days-21 until -23, mice were challenged with OVA via intranasal instillation (i.n). Control animals were sensitized and challenged with PBS. At the end of treatment (Day-25), 2-cell embryos were retrieved and cultured in vitro until the blastocysts hatched. Results showed reduced number of preimplantation embryos at all developing stages in all treated groups (p ≤ 0.0001). Uneven blastomere size, partial compaction- and cavitation-activity, low formation of trophectoderm (TE), as well as cell fragmentation were noted in all the treated groups. Maternal serum interleukin (IL)-4, immunoglobulin (Ig)-E and 8-hydroxydeoxyguanosine (8-OHdG) were notably high (p ≤ 0.0001, p ≤ 0.01) in contrast with low total antioxidant capacity (TAOC) (p ≤ 0.0001). Our findings indicated that OVA-induced allergic asthma had compromised cell morphogenesis through reduced blastomere cleavage division, partial compaction and cavitation-activity, impairment of TE production, and cell fragmentation leading to embryonic cell death via OS mechanism.
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Affiliation(s)
- Che Ismail Wafriy
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor 47000, Malaysia; Institute of Medical Molecular Biotechnology (IMMB), Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor 47000, Malaysia
| | - Yuhaniza Shafinie Kamsani
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor 47000, Malaysia; Maternofetal and Embryo (MatE) Research Group, Universiti Teknologi Mara, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor 47000, Malaysia.
| | - Mohamed Noor Khan Nor-Ashikin
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor 47000, Malaysia; Maternofetal and Embryo (MatE) Research Group, Universiti Teknologi Mara, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor 47000, Malaysia
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Hsieh A, Assadinia N, Hackett TL. Airway remodeling heterogeneity in asthma and its relationship to disease outcomes. Front Physiol 2023; 14:1113100. [PMID: 36744026 PMCID: PMC9892557 DOI: 10.3389/fphys.2023.1113100] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/05/2023] [Indexed: 01/20/2023] Open
Abstract
Asthma affects an estimated 262 million people worldwide and caused over 461,000 deaths in 2019. The disease is characterized by chronic airway inflammation, reversible bronchoconstriction, and airway remodeling. Longitudinal studies have shown that current treatments for asthma (inhaled bronchodilators and corticosteroids) can reduce the frequency of exacerbations, but do not modify disease outcomes over time. Further, longitudinal studies in children to adulthood have shown that these treatments do not improve asthma severity or fixed airflow obstruction over time. In asthma, fixed airflow obstruction is caused by remodeling of the airway wall, but such airway remodeling also significantly contributes to airway closure during bronchoconstriction in acute asthmatic episodes. The goal of the current review is to understand what is known about the heterogeneity of airway remodeling in asthma and how this contributes to the disease process. We provide an overview of the existing knowledge on airway remodeling features observed in asthma, including loss of epithelial integrity, mucous cell metaplasia, extracellular matrix remodeling in both the airways and vessels, angiogenesis, and increased smooth muscle mass. While such studies have provided extensive knowledge on different aspects of airway remodeling, they have relied on biopsy sampling or pathological assessment of lungs from fatal asthma patients, which have limitations for understanding airway heterogeneity and the entire asthma syndrome. To further understand the heterogeneity of airway remodeling in asthma, we highlight the potential of in vivo imaging tools such as computed tomography and magnetic resonance imaging. Such volumetric imaging tools provide the opportunity to assess the heterogeneity of airway remodeling within the whole lung and have led to the novel identification of heterogenous gas trapping and mucus plugging as important predictors of patient outcomes. Lastly, we summarize the current knowledge of modification of airway remodeling with available asthma therapeutics to highlight the need for future studies that use in vivo imaging tools to assess airway remodeling outcomes.
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Affiliation(s)
- Aileen Hsieh
- Centre for Heart Lung Innovation, St. Paul’s Hospital, Vancouver, BC, Canada,Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Najmeh Assadinia
- Centre for Heart Lung Innovation, St. Paul’s Hospital, Vancouver, BC, Canada,Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Tillie-Louise Hackett
- Centre for Heart Lung Innovation, St. Paul’s Hospital, Vancouver, BC, Canada,Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada,*Correspondence: Tillie-Louise Hackett,
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Jung JW, Oh JS, Bae B, Ahn YH, Kim LW, Choi J, Kim HY, Kang HR, Lee CH. Ultra-high-resolution computed tomography shows changes in the lungs related with airway hyperresponsiveness in a murine asthma model. Sci Rep 2021; 11:17584. [PMID: 34475448 PMCID: PMC8413288 DOI: 10.1038/s41598-021-96853-z] [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: 02/24/2021] [Accepted: 08/09/2021] [Indexed: 11/12/2022] Open
Abstract
In vivo presentation of airway hyper-responsiveness (AHR) at the different time points of the allergic reaction is not clearly understood. The purpose of this study was to investigate how AHR manifests in the airway and the lung parenchyma in vivo following exposure to different stimuli and in the early and late phases of asthma after allergen exposure. Ovalbumin (OVA)-induced allergic asthma model was established using 6-week female BALB/c mice. Enhanced pause was measured with a non-invasive method to assess AHR. The dynamic changes of the airway and lung parenchyma were evaluated with ultra-high-resolution computed tomography (128 multi-detector, 1024 × 1024 matrix) for 10 h. While the methacholine challenge showed no grossly visible changes in the proximal airway and lung parenchyma despite provoking AHR, the OVA challenge induced significant immediate changes manifesting as peribronchial ground glass opacities, consolidations, air-trapping, and paradoxical proximal airway dilatations. After resolution of immediate response, multiple episodes of AHRs occurred with paradoxical proximal airway dilatation and peripheral air-trapping in late phase over a prolonged time period in vivo. Understanding of airflow limitation based on the structural changes of asthmatic airway would be helpful to make an appropriate drug delivery strategy for the treatment of asthma.
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Affiliation(s)
- Jae-Woo Jung
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea.,Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Jung Suk Oh
- Department of Radiology, Catholic University, Seoul St. Mary's Hospital, Seoul, Korea
| | - Boram Bae
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea
| | - Yoon Hae Ahn
- Department of Internal Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Lucy Wooyeon Kim
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea
| | - Jiwoong Choi
- Department of Internal Medicine, University of Kansas School of Medicine, Kansas City, KS, USA.,Department of Bioengineering, University of Kansas, Lawrence, KS, USA
| | - Hye-Young Kim
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea.,Laboratory of Mucosal Immunology, Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - Hye-Ryun Kang
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea. .,Department of Internal Medicine, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
| | - Chang Hyun Lee
- Department of Radiology and Institute of Radiation, Seoul National University College of Medicine, Seoul National University Hospital, 103 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
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Wafriy CI, Kamsani YS, Nor-Ashikin MNK, Nasir NAA, Hanafiah M. Ovalbumin causes impairment of preimplantation embryonic growth in asthma-induced mice. J Reprod Immunol 2020; 143:103240. [PMID: 33166807 DOI: 10.1016/j.jri.2020.103240] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/04/2020] [Accepted: 10/21/2020] [Indexed: 10/23/2022]
Abstract
Insufficient experimental studies have reported the effect of ovalbumin (OVA) as an allergen towards embryonic growth in asthma mouse model. The impact of 10 μg/200 μL OVA on maternal inflammatory and oxidative stress (OS) responses, and preimplantation embryonic development was investigated in this study. We first established OVA-induced asthma mouse model, and following superovulation, mated the females and challenged them with Methacholine (Mch) test. Upon embryo retrieval, only those with the highest implantation potential were cultured in vitro. Significant reduction in the number of embryos at each preimplantation stage was noted in the treated group. Uneven sized blastomeres at 2-, 4- and 8-cell stages were also evident in this group. Embryo fragmentation was significant at only 2-, 4- and 8-cell stages. We also found that OVA tended to raise maternal inflammatory and OS biomarker levels as well as to cause inappropriate levels of pregnancy hormones progesterone (P4) and estrogen (E2) although insignificant. The combined results indicate that 10 μg/200 μL OVA had altered both quality and quantity of the embryos in asthma mouse model although its effect on pregnancy hormones, inflammatory and OS responses were non-pathological.
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Affiliation(s)
- Che Ismail Wafriy
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor, 47000, Malaysia.
| | - Yuhaniza Shafinie Kamsani
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor, 47000, Malaysia; Maternofetal and Embryo (MatE) Research Group, Universiti Teknologi Mara, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor, 47000, Malaysia.
| | - Mohamed Noor Khan Nor-Ashikin
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor, 47000, Malaysia; Maternofetal and Embryo (MatE) Research Group, Universiti Teknologi Mara, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor, 47000, Malaysia.
| | - Nurul Alimah Abdul Nasir
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor, 47000, Malaysia; Centre for Neuroscience Research (NeuRon), Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor, 47000, Malaysia.
| | - Mohammad Hanafiah
- Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, Sungai Buloh, Selangor, 47000, Malaysia; Assunta Hospital, Jalan Templer, Pjs 4, 46050 Petaling Jaya, Selangor, Malaysia.
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Deng L, Xiao SM, Qiang JW, Li YA, Zhang Y. Early Lung Adenocarcinoma in Mice: Micro-Computed Tomography Manifestations and Correlation with Pathology. Transl Oncol 2017; 10:311-317. [PMID: 28325667 PMCID: PMC5358927 DOI: 10.1016/j.tranon.2017.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 02/16/2017] [Accepted: 02/16/2017] [Indexed: 12/17/2022] Open
Abstract
Lung cancer is the most common fatal malignancy for both men and women and adenocarcinoma is the most common histologic type. Early diagnosis of lung cancer can significantly improve the survival rate of patients. This study aimed to investigate the micro-computed tomography (micro-CT) manifestations of early lung adenocarcinoma (LAC) in mice and to provide a new perspective for early clinical diagnosis. Early LAC models in 10 mice were established by subcutaneously injecting 1-methyl-3-nitro-1-nitrosoguanidine (MNNG) solution. Micro-CT scan and multiple planar reconstruction (MPR) were used for mouse lungs. Micro-CT features of early LAC, especially the relationships between tumor and bronchus, were analyzed and correlated with pathology. Micro-CT findings of early LAC were divided into three types: non-solid (n = 8, 6%), partly solid (n = 85, 64%) and totally solid (n = 39, 30%). Tumor-bronchus relationships, which could be observed in 110 of 132(83%) LAC, were classified into four patterns: type I (n = 16, 15%), bronchus was truncated at the margin of the tumor; type II (n = 33, 30%), bronchus penetrated into the tumor with tapered narrowing and interruption; type III (n = 38, 35%), bronchus penetrated into the tumor with a patent and intact lumen; type IV (n = 99, 90%), bronchus ran at the border of the tumor with an intact or compressed lumen. Micro-CT manifestations of early LAC correlated well with pathological findings. Micro-CT can clearly demonstrate the features of mouse early LAC and bronchus-tumor relationships, and can also provide a new tool and perspective for the study of early LAC.
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Affiliation(s)
- Lin Deng
- Department of Radiology, Jinshan Hospital & Shanghai Medical College, Fudan University, Shanghai, 201508, China
| | - Shi Man Xiao
- Department of Radiology, Jinshan Hospital & Shanghai Medical College, Fudan University, Shanghai, 201508, China
| | - Jin Wei Qiang
- Department of Radiology, Jinshan Hospital & Shanghai Medical College, Fudan University, Shanghai, 201508, China.
| | - Yong Ai Li
- Department of Radiology, Jinshan Hospital & Shanghai Medical College, Fudan University, Shanghai, 201508, China
| | - Yu Zhang
- Department of Radiology, Jinshan Hospital & Shanghai Medical College, Fudan University, Shanghai, 201508, China
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Lee PH, Kim BG, Seo HJ, Park JS, Lee JH, Park SW, Kim DJ, Park HS, Park CS, Jang AS. Circulating angiopoietin-1 and -2 in patients with stable and exacerbated asthma. Ann Allergy Asthma Immunol 2016; 116:339-43. [PMID: 26776887 DOI: 10.1016/j.anai.2015.12.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 11/11/2015] [Accepted: 12/02/2015] [Indexed: 12/25/2022]
Abstract
BACKGROUND Angiopoietin (Ang)-1 and -2 are involved in the pathogenesis of asthma and have been identified as markers of asthma severity. OBJECTIVE To determine the relation between circulating angiopoietins and clinical variables of patients with asthma. METHODS Fifty patients with bronchial asthma and 25 healthy controls were enrolled. Ang1 and Ang2 plasma levels were analyzed in patients with stable and exacerbated asthma. RESULTS Plasma Ang1 levels were 28.4 ± 4.01 pg/mg in patients with bronchial asthma and 21.2 ± 5.21 pg/mg in healthy controls. Plasma Ang2 levels were 23.96 ± 1.38 pg/mg in patients with bronchial asthma compared with 36.8 ± 4.46 pg/mg in healthy controls (P = .010). The ratio of Ang2 to Ang1 was lower in patients with asthma than in control subjects. Plasma Ang1 concentrations were correlated with the ratio of forced expiratory volume in 1 second (FEV1) to forced vital capacity (FVC), and plasma Ang2 levels were correlated with FEV1 percentage of predicted, FEV1/FVC, and total immunoglobulin E values. The ratio of Ang2 to Ang1 was correlated with FEV1 percentage of predicted and FEV1/FVC. Although plasma Ang1 levels tended to be lower in the exacerbated state than in the stable state in patients with asthma, Ang2 levels were higher in the exacerbated state than in the stable state in patients with asthma (P = .001). Plasma Ang2 levels were correlated with initial eosinophil proportions and initial neutrophil proportions. Plasma Ang2 levels and the ratio of Ang2 to Ang1 were correlated with blood eosinophil proportions in the exacerbated state. CONCLUSION These results indicate that circulating angiopoietins could be a useful marker of asthma exacerbation.
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Affiliation(s)
- Pureun-Haneul Lee
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Byeong-Gon Kim
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Hyun-Jeong Seo
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Jong-Sook Park
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - June-Hyuck Lee
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Sung-Woo Park
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Do-Jin Kim
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Hae-Sim Park
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Choon-Sik Park
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - An-Soo Jang
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea.
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Ma X, Prakash J, Ruscitti F, Glasl S, Stellari FF, Villetti G, Ntziachristos V. Assessment of asthmatic inflammation using hybrid fluorescence molecular tomography-x-ray computed tomography. JOURNAL OF BIOMEDICAL OPTICS 2016; 21:15009. [PMID: 26803669 DOI: 10.1117/1.jbo.21.1.015009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 12/15/2015] [Indexed: 05/05/2023]
Affiliation(s)
- Xiaopeng Ma
- Helmholtz Zentrum München, Institute for Biological and Medical Imaging, Ingolstaedter Landstrasse 1, Neuherberg, D-85746, GermanybTechnische Universität München, Chair for Biological Imaging, Ismaninger Street 22, Munich 81675, Germany
| | - Jaya Prakash
- Helmholtz Zentrum München, Institute for Biological and Medical Imaging, Ingolstaedter Landstrasse 1, Neuherberg, D-85746, GermanybTechnische Universität München, Chair for Biological Imaging, Ismaninger Street 22, Munich 81675, Germany
| | - Francesca Ruscitti
- University of Parma, Department of Biomedical, Biotechnological and Translational Science, via del Taglio 10, Parma, 43126, Italy
| | - Sarah Glasl
- Helmholtz Zentrum München, Institute for Biological and Medical Imaging, Ingolstaedter Landstrasse 1, Neuherberg, D-85746, GermanybTechnische Universität München, Chair for Biological Imaging, Ismaninger Street 22, Munich 81675, Germany
| | - Fabio Franco Stellari
- Corporate Pre-clinical R&D, Chiesi Farmaceutici S.p.A, Largo Francesco Belloli 11/A, Parma, 43122, Italy
| | - Gino Villetti
- Corporate Pre-clinical R&D, Chiesi Farmaceutici S.p.A, Largo Francesco Belloli 11/A, Parma, 43122, Italy
| | - Vasilis Ntziachristos
- Helmholtz Zentrum München, Institute for Biological and Medical Imaging, Ingolstaedter Landstrasse 1, Neuherberg, D-85746, GermanybTechnische Universität München, Chair for Biological Imaging, Ismaninger Street 22, Munich 81675, Germany
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Zha W, Su M, Huang M, Cai J, Du Q. Administration of Pigment Epithelium-Derived Factor Inhibits Airway Inflammation and Remodeling in Chronic OVA-Induced Mice via VEGF Suppression. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2015; 8:161-9. [PMID: 26739410 PMCID: PMC4713880 DOI: 10.4168/aair.2016.8.2.161] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 08/13/2015] [Accepted: 08/18/2015] [Indexed: 12/16/2022]
Abstract
Purpose Pigment epithelium-derived factor (PEDF) is a recently discovered antiangiogenesis protein. PEDF possesses powerful anti-inflammatory, antioxidative, antiangiogenic, and antifibrosis properties. It has been reported that PEDF can regulate vascular endothelial growth factor (VEGF) expression. This study aimed to evaluate whether recombinant PEDF protein could attenuate allergic airway inflammation and airway remodeling via the negative regulation of VEGF using a murine model of chronic ovalbumin (OVA)-induced asthma and BEAS-2B human bronchial epithelial cells. Methods In an in vivo experiment, mice sensitized with OVA were chronically airway challenged with aerosolized 1% OVA solution for 8 weeks. Treated mice were given injections of recombinant PEDF protein (50 or 100 µg/kg body weight) via the tail vein. In an in vitro experiment, we investigated the effects of recombinant PEDF protein on VEGF release levels in BEAS-2B cells stimulated with IL-1β. Results Recombinant PEDF protein significantly inhibited eosinophilic airway inflammation, airway hyperresponsiveness, and airway remodeling, including goblet cell hyperplasia, subepithelial collagen deposition, and airway smooth muscle hypertrophy. In addition, recombinant PEDF protein suppressed the enhanced expression of VEGF protein in lung tissue and bronchoalveolar lavage fluid (BALF) in OVA-challenged chronically allergic mice. In the in vitro experiment, VEGF expression was increased after IL-1β stimulation. Pretreatment with 50 and 100 ng/mL of recombinant PEDF protein significantly attenuated the increase in VEGF release levels in a concentration-dependent manner in BEAS-2B cells stimulated by IL-1β. Conclusions These results suggest that recombinant PEDF protein may abolish the development of characteristic features of chronic allergic asthma via VEGF suppression, providing a potential treatment option for chronic airway inflammation diseases such as asthma.
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Affiliation(s)
- Wangjian Zha
- Department of Respiratory Medicine, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Mei Su
- Department of Respiratory Medicine, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Mao Huang
- Department of Respiratory Medicine, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Jiankang Cai
- Department of Respiratory Medicine, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Qiang Du
- Department of Respiratory Medicine, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China.
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