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Chen X, Zhou L, Ma H, Wu J, Liu S, Wu Y, Yan D. Mitochondrial dynamics modulate the allergic inflammation in a murine model of allergic rhinitis. Immun Inflamm Dis 2023; 11:e1002. [PMID: 37773697 PMCID: PMC10515506 DOI: 10.1002/iid3.1002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 10/01/2023] Open
Abstract
OBJECTIVE Allergic rhinitis (AR) is a common allergic disorder, afflicting thousands of human beings. Aberrant mitochondrial dynamics are important pathological elements for various immune cell dysfunctions and allergic diseases. However, the connection between mitochondrial dynamics and AR remains poorly understood. This study aimed to determine whether mitochondrial dynamics influence the inflammatory response in AR. METHODS In the present study, we established a murine model of AR by sensitization with ovalbumin (OVA). Then, we investigated the mitochondrial morphology in mice with AR by transmission electron microscopy and confocal fluorescence microscopy, and evaluated the role of Mdivi-1 (an inhibitor of mitochondrial fission) on allergic symptoms, inflammatory responses, allergic-related signals, and reactive oxygen species formation. RESULTS There was a notable enhancement in mitochondrial fragmentation in the nasal mucosa of mice following OVA stimulation, whereas Mdivi-1 prevented aberrant mitochondrial morphology. Indeed, Mdivi-1 alleviated the rubbing and sneezing responses in OVA-sensitized mice. Compared with vehicle-treated ones, mice treated with Mdivi-1 exhibited a reduction in interleukin (IL)-4, IL-5, and specific IgE levels in both serum and nasal lavage fluid, and shown an amelioration in inflammatory response of nasal mucosa. Meanwhile, Mdivi-1 treatment was associated with a suppression in JAK2 and STAT6 activation and reactive oxygen species generation, which act as important signaling for allergic response. CONCLUSION Our findings reveal mitochondrial dynamics modulate the allergic responses in AR. Mitochondrial dynamics may represent a promising target for the treatment of AR.
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Affiliation(s)
- Xu‐qing Chen
- Department of Otolaryngology, Jiangsu Province Hospital of Chinese MedicineAffiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Long‐yun Zhou
- Department of Rehabilitation Medicine, Jiangsu Province HospitalThe First Affiliated Hospital of Nanjing Medical UniversityNanjingChina
| | - Hua‐an Ma
- Department of Otolaryngology, Jiangsu Province Hospital of Chinese MedicineAffiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Ji‐yong Wu
- Department of Otolaryngology, Jiangsu Province Hospital of Chinese MedicineAffiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
| | - Shu‐fen Liu
- Spine Disease Institute, Longhua HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Yong‐jun Wu
- Department of Otolaryngology, Jiangsu Province Hospital of Chinese MedicineAffiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
- The First Clinical Medical CollegeNanjing University of Chinese MedicineNanjingChina
| | - Dao‐nan Yan
- Department of Otolaryngology, Jiangsu Province Hospital of Chinese MedicineAffiliated Hospital of Nanjing University of Chinese MedicineNanjingChina
- The First Clinical Medical CollegeNanjing University of Chinese MedicineNanjingChina
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Menkhorst E, Zhou W, Santos L, Zhang JG, St-Pierre Y, Young MJ, Dimitriadis E. Galectin-7 dysregulates renin-angiotensin-aldosterone and NADPH oxide synthase pathways in preeclampsia. Pregnancy Hypertens 2022; 30:130-136. [PMID: 36183583 DOI: 10.1016/j.preghy.2022.09.008] [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: 05/06/2022] [Revised: 09/12/2022] [Accepted: 09/21/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Preeclampsia is a life-threatening disorder of pregnancy unique to humans. Poor placentation in the first trimester of pregnancy is widely accepted to be an underlying cause of preeclampsia. Galectin-7 is abnormally elevated in chorionic villous samples and serum from women that subsequently develop pre-term preeclampsia. Administration of exogenous galectin-7 to pregnant mice causes preeclampsia-like features (hypertension, proteinuria), associated with dysregulation of the renin-angiotensin system (RAS). In this study investigated the mechanism by which galectin-7 induces alterations to tissue RAS homeostasis and ROS production. We hypothesized that galectin-7 induces alterations in the production of either placental RAS or NADPH oxidases (or both) to drive the dysregulated RAS and ROS production seen in preeclampsia. STUDY DESIGN Mated female mice (n = 5-6/group) received single (embryonic day [E]12/13) or multiple (E8-12) subcutaneous injections of 400 μg/kg/day galectin-7 or vehicle control and killed on E13 or E18. Human first trimester placental villous and decidual tissue (n = 11) was cultured under 8 % oxygen with 1 µg/mL galectin-7 or vehicle control for 16 h. RESULTS Galectin-7 administration to pregnant mice impaired placental labyrinth formation, suppressed circulating aldosterone and altered placental RAS (Agt, Renin) and NADPH oxidase (Cyba, Cybb and Icam1) mRNA expression. In vitro, galectin-7 regulated human placental villous RAS (AGT) and NADPH oxidase (CYBA, ICAM1 and VCAM1) mRNA expression. CONCLUSIONS Overall, galectin-7 likely drives hypertension in preeclampsia via its direct regulation of multiple pathways associated with preeclampsia in the placenta. Galectin-7 may therefore be a therapeutic target to improve placental function and prevent preeclampsia.
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Affiliation(s)
- Ellen Menkhorst
- Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC, Australia; Gynaecology Research Centre, Royal Women's Hospital, Parkville, VIC, Australia; Centre for Reproductive Health, Hudson Institute of Medical Research, Clayton, VIC, Australia.
| | - Wei Zhou
- Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC, Australia; Gynaecology Research Centre, Royal Women's Hospital, Parkville, VIC, Australia
| | - Leilani Santos
- Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC, Australia; Gynaecology Research Centre, Royal Women's Hospital, Parkville, VIC, Australia
| | - Jian-Guo Zhang
- Walter and Eliza Hall Institute, Parkville, VIC, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC, Australia
| | | | - Morag J Young
- Baker Heart & Diabetes Institute, Prahran, VIC, Australia
| | - Evdokia Dimitriadis
- Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC, Australia; Gynaecology Research Centre, Royal Women's Hospital, Parkville, VIC, Australia; Centre for Reproductive Health, Hudson Institute of Medical Research, Clayton, VIC, Australia; Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC, Australia.
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3
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Kanti MM, Striessnig-Bina I, Wieser BI, Schauer S, Leitinger G, Eichmann TO, Schweiger M, Winkler M, Winter E, Lana A, Kufferath I, Marsh LM, Kwapiszewska G, Zechner R, Hoefler G, Vesely PW. Adipose triglyceride lipase-mediated lipid catabolism is essential for bronchiolar regeneration. JCI Insight 2022; 7:e149438. [PMID: 35349484 PMCID: PMC9090255 DOI: 10.1172/jci.insight.149438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 03/23/2022] [Indexed: 01/18/2023] Open
Abstract
The lung airways are constantly exposed to inhaled toxic substances, resulting in cellular damage that is repaired by local expansion of resident bronchiolar epithelial club cells. Disturbed bronchiolar epithelial damage repair lies at the core of many prevalent lung diseases, including chronic obstructive pulmonary disease, asthma, pulmonary fibrosis, and lung cancer. However, it is still not known how bronchiolar club cell energy metabolism contributes to this process. Here, we show that adipose triglyceride lipase (ATGL), the rate-limiting enzyme for intracellular lipolysis, is critical for normal club cell function in mice. Deletion of the gene encoding ATGL, Pnpla2 (also known as Atgl), induced substantial triglyceride accumulation, decreased mitochondrial numbers, and decreased mitochondrial respiration in club cells. This defect manifested as bronchiolar epithelial thickening and increased airway resistance under baseline conditions. After naphthalene‑induced epithelial denudation, a regenerative defect was apparent. Mechanistically, dysfunctional PPARα lipid-signaling underlies this phenotype because (a) ATGL was needed for PPARα lipid-signaling in regenerating bronchioles and (b) administration of the specific PPARα agonist WY14643 restored normal bronchiolar club cell ultrastructure and regenerative potential. Our data emphasize the importance of the cellular energy metabolism for lung epithelial regeneration and highlight the significance of ATGL-mediated lipid catabolism for lung health.
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Affiliation(s)
- Manu Manjunath Kanti
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
| | - Isabelle Striessnig-Bina
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
| | - Beatrix Irene Wieser
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
| | - Silvia Schauer
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Gerd Leitinger
- BioTechMed-Graz, Graz, Austria
- Division of Cell Biology, Histology, and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Thomas O. Eichmann
- BioTechMed-Graz, Graz, Austria
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
- Core Facility Mass Spectrometry, Medical University of Graz, Graz, Austria
| | - Martina Schweiger
- BioTechMed-Graz, Graz, Austria
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Margit Winkler
- BioTechMed-Graz, Graz, Austria
- Institute of Molecular Biotechnology, NAWI Graz, Graz University of Technology, Graz, Austria
| | - Elke Winter
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Andrea Lana
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Iris Kufferath
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Leigh Matthew Marsh
- BioTechMed-Graz, Graz, Austria
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Grazyna Kwapiszewska
- BioTechMed-Graz, Graz, Austria
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria
- Institute for Lung Health, Giessen, Germany
| | - Rudolf Zechner
- BioTechMed-Graz, Graz, Austria
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Gerald Hoefler
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
| | - Paul Willibald Vesely
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
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Hochgerner M, Sturm EM, Schnoegl D, Kwapiszewska G, Olschewski H, Marsh LM. Low oxygen levels decrease adaptive immune responses and ameliorate experimental asthma in mice. Allergy 2022; 77:870-882. [PMID: 34309864 PMCID: PMC9290649 DOI: 10.1111/all.15020] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 06/09/2021] [Accepted: 07/13/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND High-altitude therapy has been used as add-on treatment for allergic asthma with considerable success. However, the underlying mechanisms remain unclear. In order to investigate the possible therapeutic effects of high-altitude therapy on allergic asthma, we utilized a new in vivo mouse model. METHODS Mice were treated with house dust mite (HDM) extract over 4 weeks and co-exposed to 10% oxygen (Hyp) or room air for the final 2 weeks. Experimental asthma was assessed by airway hyper-responsiveness, mucus hypersecretion and inflammatory cell recruitment. Isolated immune cells from mouse and allergic patients were stimulated in vitro with HDM under Hyp and normoxia in different co-culture systems to analyse the adaptive immune response. RESULTS Compared to HDM-treated mice in room air, HDM-treated Hyp-mice displayed ameliorated mucosal hypersecretion and airway hyper-responsiveness. The attenuated asthma phenotype was associated with strongly reduced activation of antigen-presenting cells (APCs), effector cell infiltration and cytokine secretion. In vitro, hypoxia almost completely suppressed the HDM-induced adaptive immune response in both mouse and human immune cells. While hypoxia did not affect effector T-cell responses per-se, it interfered with antigen-presenting cell (APC) differentiation and APC/effector cell crosstalk. CONCLUSIONS Hypoxia-induced reduction in the Th2-response to HDM ameliorates allergic asthma in vivo. Hypoxia interferes with APC/T-cell crosstalk and confers an unresponsive phenotype to APCs.
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Affiliation(s)
| | - Eva M. Sturm
- Division of Pharmacology, Otto Loewi Research Center Medical University of Graz Graz Austria
| | - Diana Schnoegl
- Ludwig Boltzmann Institute for Lung Vascular Research Graz Austria
| | - Grazyna Kwapiszewska
- Ludwig Boltzmann Institute for Lung Vascular Research Graz Austria
- Division of Physiology Otto Loewi Research Center, Medical University of Graz Graz Austria
| | - Horst Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research Graz Austria
- Division of Pulmonology, Department of Internal Medicine Medical University of Graz Graz Austria
| | - Leigh M. Marsh
- Ludwig Boltzmann Institute for Lung Vascular Research Graz Austria
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Sharma N, Nagaraj C, Nagy BM, Marsh LM, Bordag N, Zabini D, Wygrecka M, Klepetko W, Gschwandtner E, Genové G, Heinemann A, Weir EK, Kwapiszewska G, Olschewski H, Olschewski A. RGS5 Determines Neutrophil Migration in the Acute Inflammatory Phase of Bleomycin-Induced Lung Injury. Int J Mol Sci 2021; 22:ijms22179342. [PMID: 34502263 PMCID: PMC8430858 DOI: 10.3390/ijms22179342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 08/22/2021] [Accepted: 08/24/2021] [Indexed: 11/16/2022] Open
Abstract
The regulator of G protein signaling (RGS) represents a widespread system of controllers of cellular responses. The activities of the R4 subfamily of RGSs have been elucidated in allergic pulmonary diseases. However, the R4 signaling in other inflammatory lung diseases, with a strong cellular immune response, remained unexplored. Thus, our study aimed to discern the functional relevance of the R4 family member, RGS5, as a potential modulating element in this context. Gene profiling of the R4 subfamily showed increased RGS5 expression in human fibrosing lung disease samples. In line with this, RGS5 was markedly increased in murine lungs following bleomycin injury. RGS knock-out mice (RGS-/-) had preserved lung function while control mice showed significant combined ventilatory disorders three days after bleomycin application as compared to untreated control mice. Loss of RGS5 was associated with a significantly reduced neutrophil influx and tissue myeloperoxidase expression. In the LPS lung injury model, RGS5-/- mice also failed to recruit neutrophils into the lung, which was accompanied by reduced tissue myeloperoxidase levels after 24 h. Our in-vitro assays showed impaired migration of RGS5-/- neutrophils towards chemokines despite preserved Ca2+ signaling. ERK dephosphorylation might play a role in reduced neutrophil migration in our model. As a conclusion, loss of RGS5 preserves lung function and attenuates hyperinflammation in the acute phase of bleomycin-induced pulmonary fibrosis and LPS-induced lung injury. Targeting RGS5 might alleviate the severity of exacerbations in interstitial lung diseases.
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Affiliation(s)
- Neha Sharma
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria; (N.S.); (C.N.); (B.M.N.); (L.M.M.); (N.B.); (D.Z.); (G.K.); (H.O.)
- Experimental Anaesthesiology, Department of Anaesthesiology and Intensive Care Medicine, Medical University of Graz, 8036 Graz, Austria
| | - Chandran Nagaraj
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria; (N.S.); (C.N.); (B.M.N.); (L.M.M.); (N.B.); (D.Z.); (G.K.); (H.O.)
| | - Bence M. Nagy
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria; (N.S.); (C.N.); (B.M.N.); (L.M.M.); (N.B.); (D.Z.); (G.K.); (H.O.)
| | - Leigh M. Marsh
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria; (N.S.); (C.N.); (B.M.N.); (L.M.M.); (N.B.); (D.Z.); (G.K.); (H.O.)
| | - Natalie Bordag
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria; (N.S.); (C.N.); (B.M.N.); (L.M.M.); (N.B.); (D.Z.); (G.K.); (H.O.)
- Department of Dermatology and Venereology, Medical University of Graz, 8036 Graz, Austria
| | - Diana Zabini
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria; (N.S.); (C.N.); (B.M.N.); (L.M.M.); (N.B.); (D.Z.); (G.K.); (H.O.)
- Otto Loewi Research Center, Medical University of Graz, 8010 Graz, Austria
| | - Malgorzata Wygrecka
- Department of Biochemistry, Universities of Giessen and Marburg Lung Center, Justus Liebig University of Giessen, Friedrichstrasse 24, 35392 Giessen, Germany;
| | - Walter Klepetko
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (W.K.); (E.G.)
| | - Elisabeth Gschwandtner
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria; (W.K.); (E.G.)
| | - Guillem Genové
- Integrated CardioMetabolic Centre (ICMC), Department of Medicine, Karolinska Institute, 171 77 Huddinge, Sweden;
| | - Akos Heinemann
- Otto Loewi Research Center for Vascular Biology, Immunology and Inflammation, Division of Pharmacology, Medical University of Graz, 8010 Graz, Austria;
| | - E Kenneth Weir
- Department of Medicine, University of Minnesota, Minneapolis, MN 55455, USA;
| | - Grazyna Kwapiszewska
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria; (N.S.); (C.N.); (B.M.N.); (L.M.M.); (N.B.); (D.Z.); (G.K.); (H.O.)
- Otto Loewi Research Center, Medical University of Graz, 8010 Graz, Austria
| | - Horst Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria; (N.S.); (C.N.); (B.M.N.); (L.M.M.); (N.B.); (D.Z.); (G.K.); (H.O.)
- Department of Internal Medicine, Division of Pulmonology, Medical University of Graz, 8036 Graz, Austria
| | - Andrea Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria; (N.S.); (C.N.); (B.M.N.); (L.M.M.); (N.B.); (D.Z.); (G.K.); (H.O.)
- Experimental Anaesthesiology, Department of Anaesthesiology and Intensive Care Medicine, Medical University of Graz, 8036 Graz, Austria
- Correspondence: ; Tel.: +43-(0)316-385-72057
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6
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Bordag N, Biasin V, Schnoegl D, Valzano F, Jandl K, Nagy BM, Sharma N, Wygrecka M, Kwapiszewska G, Marsh LM. Machine Learning Analysis of the Bleomycin Mouse Model Reveals the Compartmental and Temporal Inflammatory Pulmonary Fingerprint. iScience 2020; 23:101819. [PMID: 33319168 PMCID: PMC7725744 DOI: 10.1016/j.isci.2020.101819] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/28/2020] [Accepted: 11/13/2020] [Indexed: 02/06/2023] Open
Abstract
The bleomycin mouse model is the extensively used model to study pulmonary fibrosis; however, the inflammatory cell kinetics and their compartmentalization is still incompletely understood. Here we assembled historical flow cytometry data, totaling 303 samples and 16 inflammatory-cell populations, and applied advanced data modeling and machine learning methods to conclusively detail these kinetics. Three days post-bleomycin, the inflammatory profile was typified by acute innate inflammation, pronounced neutrophilia, especially of SiglecF+ neutrophils, and alveolar macrophage loss. Between 14 and 21 days, rapid responders were increasingly replaced by T and B cells and monocyte-derived alveolar macrophages. Multicolour imaging revealed the spatial-temporal cell distribution and the close association of T cells with deposited collagen. Unbiased immunophenotyping and data modeling exposed the dynamic shifts in immune-cell composition over the course of bleomycin-triggered lung injury. These results and workflow provide a reference point for future investigations and can easily be applied in the analysis of other datasets.
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Affiliation(s)
- Natalie Bordag
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
| | - Valentina Biasin
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
- Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz 8010, Austria
| | - Diana Schnoegl
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
| | - Francesco Valzano
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
| | - Katharina Jandl
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
- Otto Loewi Research Center, Medical University of Graz, Graz 8010 Austria
| | - Bence M. Nagy
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
| | - Neha Sharma
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz 8010, Austria
| | - Malgorzata Wygrecka
- Department of Biochemistry, Universities of Giessen and Marburg Lung Center, Giessen 35392, Germany. Member of German Center for Lung Research
| | - Grazyna Kwapiszewska
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
- Otto Loewi Research Center, Medical University of Graz, Graz 8010 Austria
| | - Leigh M. Marsh
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz 8010, Austria
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7
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Mannitol and the mechanisms behind bronchoconstriction. J Allergy Clin Immunol 2019; 144:931-932. [PMID: 31472165 DOI: 10.1016/j.jaci.2019.06.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 06/19/2019] [Indexed: 01/03/2023]
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8
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Cui J, Xu F, Tang Z, Wang W, Hu LL, Yan C, Luo Q, Gao H, Wei Y, Dong J. Bu-Shen-Yi-Qi formula ameliorates airway remodeling in murine chronic asthma by modulating airway inflammation and oxidative stress in the lung. Biomed Pharmacother 2019; 112:108694. [PMID: 30798140 DOI: 10.1016/j.biopha.2019.108694] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 02/13/2019] [Accepted: 02/14/2019] [Indexed: 12/16/2022] Open
Abstract
Bu-Shen-Yi-Qi formula (BSYQF) could suppress chronic airway inflammation according to previous studies. However, there is relatively little direct experimental evidence to evaluate the effects of BSYQF treatment on airway remodeling in chronic asthma. Recent evidence suggests that oxidative stress is involved in airway inflammation and airway remodeling in chronic asthma. BSYQF which includes various of chemical components having antioxidant effects, could be beneficial in attenuating airway remodeling in chronic asthma. The purpose of this study was to elucidate the effect of BSYQF treatment on airway remodeling and investigate its potential mechanisms in chronic asthma. To develop the murine models of chronic asthma, BALB/c mice were sensitized and challenged to ovalbumin for 8 weeks. BSYQF (5, 10, 20 g raw herbs/kg body weight) or tiotropium bromide (0.1 mM) were administered orally and intranasal instillation, respectively. The effect of BSYQF on pulmonary inflammation and remodeling was evaluated. The parameters of oxidative stress in the lung were analyzed. BSYQF treatment reduced airway hyperresponsiveness (AHR), Th2 response including IL-4, IL-13, and OVA-specific IgE and IgG1, transforming growth factor-β (TGF-β), vascular endothelium growth factor (VEGF), airway inflammation and airway remodeling including smooth muscle thickening and peribronchial collagen deposition. As for oxidative stress, BSYQF treatment reduced reactive oxygen species (ROS), Malondialdehyde (MDA), NO, and the expression of inducible nitric oxide synthase (iNOS), but increased significantly glutathione (GSH) /Oxidized glutathione(GSSH) ratios in the lung, restored mitochondrial ultrastructural changes of bronchial epithelia and ATP levels in the lung. In summary, this study suggested that BSYQF treatment ameliorated airway remodeling and alleviated asthmatic features in chronic asthma models. Anti-inflammatory and antioxidant effect of BSYQF may explain why BSYQF has effects on preventing airway remodeling.
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Affiliation(s)
- Jie Cui
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Fei Xu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Zhao Tang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Wenqian Wang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Ling Li Hu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Chen Yan
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Qingli Luo
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Hongjian Gao
- Electron Microscope Room, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Ying Wei
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China.
| | - Jingcheng Dong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China.
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9
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Gungl A, Biasin V, Wilhelm J, Olschewski A, Kwapiszewska G, Marsh LM. Fra2 Overexpression in Mice Leads to Non-allergic Asthma Development in an IL-13 Dependent Manner. Front Immunol 2018; 9:2018. [PMID: 30233597 PMCID: PMC6133984 DOI: 10.3389/fimmu.2018.02018] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 08/16/2018] [Indexed: 12/28/2022] Open
Abstract
Background: Asthma is a complex chronic inflammatory disease characterised by airway inflammation, remodelling and hyperresponsiveness (AHR). Members of the AP-1 transcription factor family play important roles in the activation of the immune system and the control of cellular responses; however, their role in the development of asthma has not been well studied. We aimed to investigate the role of the lesser known AP-1 family member, Fra2 in experimental asthma. Methods: Phenotypic characterisation and gene expression profiling was performed on Fra2 (TG) overexpressing and wild-type mice. The efficacy of therapeutic interventions in regulating the Fra2 phenotype was determined. Results: Transcriptional profiling of TG mice revealed a high abundance of regulated genes associated with airway remodelling, inflammation and mucus production. A concomitant increase in peribronchial collagen deposition, smooth muscle thickening and mucus production was observed. TG mice possessed increased inflammatory infiltration in the lung, predominantly consisting of eosinophils and T-cells and elevated expression of Th2 cytokines and eotaxin. Furthermore, TG mice possessed severe AHR in response to increasing doses of methacholine. Glucocorticoid treatment led to a partial improvement of the asthma phenotype, whereas blockade of IL-13 via neutralising antibodies ameliorated AHR and mucus production, but had no effect on collagen deposition. Conclusion: We here describe a novel model for non-allergic asthma that does not require the application of exogenous allergens, which mimics several key features of the disease, such as airway inflammation, remodelling and hyperresponsiveness. Fra2 may represent a key molecule coordinating multiple aspects of asthma pathogenesis.
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Affiliation(s)
- Anna Gungl
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Valentina Biasin
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Jochen Wilhelm
- Department of Internal Medicine, Universities of Giessen and Marburg Lung Center, Giessen, Germany.,German Center for Lung Research, Justus-Liebig University, Giessen, Germany
| | - Andrea Olschewski
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria.,Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Grazyna Kwapiszewska
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria.,Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Leigh M Marsh
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
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10
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Nesi RT, Barroso MV, Souza Muniz VD, de Arantes AC, Martins MA, Brito Gitirana LD, Neves JS, Benjamim CF, Lanzetti M, Valenca SS. Pharmacological modulation of reactive oxygen species (ROS) improves the airway hyperresponsiveness by shifting the Th1 response in allergic inflammation induced by ovalbumin. Free Radic Res 2017; 51:708-722. [PMID: 28776450 DOI: 10.1080/10715762.2017.1364377] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Asthma is an allergic inflammation driven by the Th2 immune response with release of cytokines such as IL-4 and IL-13, which contribute to the airflow limitations and airway hyperresponsiveness (AHR). The involvement of oxidative stress in this process is well-established, but the specific role of the superoxide anion and nitric oxide in asthma are poorly understood. Thus, the aim of this study was to investigate the mechanisms underlying the superoxide anion/nitric oxide production and detoxification in a murine asthma model. BALB/c male mice were sensitised and challenged with ovalbumin (OVA). Pretreatments with either apocynin (14 mg/kg) or allopurinol (25 mg/kg) (superoxide anion synthesis inhibitors), aminoguanidine (50 mg/kg) (nitric oxide synthesis inhibitor) or diethyldithiocarbamate (100 mg/kg) (superoxide dismutase inhibitor) were performed 1 h before the challenge. Our data showed that apocynin and allopurinol ameliorated AHR and reduced eosinophil peroxidase, as well as IL-4 and IL-13 levels. Apocynin also abrogated leukocyte peribronchiolar infiltrate and increased IL-1β secretion. Aminoguanidine preserved lung function and shifted the Th2 to the Th1 response with a reduction of IL-4 and IL-13 and increase in IL-1β production. Diethyldithiocarbamate prevented neither allergen-induced AHR nor eosinophil peroxidase (EPO) generation. All treatments protected against oxidative damage observed by a reduction in TBARS levels. Taken together, these results suggest that AHR in an asthma model can be avoided by the down-regulation of superoxide anion and nitric oxide synthesis in a mechanism that is independent of a redox response. This down-regulation is also associated with a transition in the typical immunological Th2 response toward the Th1 profile.
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Affiliation(s)
- Renata Tiscoski Nesi
- a Federal University of Rio de Janeiro, Institute of Biomedical Sciences , Rio de Janeiro , Brazil
| | - Marina Valente Barroso
- b Federal University of Rio de Janeiro, Institute of Microbiology Paulo Góes , Rio de Janeiro , Brazil
| | - Valdirene de Souza Muniz
- a Federal University of Rio de Janeiro, Institute of Biomedical Sciences , Rio de Janeiro , Brazil
| | - Ana Carolina de Arantes
- c Laboratory of Inflammation , Fundacao Oswaldo Cruz, Oswaldo Cruz Institute , Rio de Janeiro , Brazil
| | - Marco Aurélio Martins
- c Laboratory of Inflammation , Fundacao Oswaldo Cruz, Oswaldo Cruz Institute , Rio de Janeiro , Brazil
| | - Lycia de Brito Gitirana
- a Federal University of Rio de Janeiro, Institute of Biomedical Sciences , Rio de Janeiro , Brazil
| | - Josiane Sabbadini Neves
- a Federal University of Rio de Janeiro, Institute of Biomedical Sciences , Rio de Janeiro , Brazil
| | - Cláudia Farias Benjamim
- a Federal University of Rio de Janeiro, Institute of Biomedical Sciences , Rio de Janeiro , Brazil
| | - Manuella Lanzetti
- a Federal University of Rio de Janeiro, Institute of Biomedical Sciences , Rio de Janeiro , Brazil
| | - Samuel Santos Valenca
- a Federal University of Rio de Janeiro, Institute of Biomedical Sciences , Rio de Janeiro , Brazil
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