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Zhou D, Ren Y, Zhou Y, Tao X, Liao Y, Yuan C, Lu M, Cui Y. Expression, purification, and activity of novel allergen Tyr p 31 from Tyrophagus putrescentiae. Int J Biol Macromol 2024; 258:128856. [PMID: 38143053 DOI: 10.1016/j.ijbiomac.2023.128856] [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: 10/31/2023] [Revised: 12/12/2023] [Accepted: 12/15/2023] [Indexed: 12/26/2023]
Abstract
Allergen component products, such as recombinant proteins and epitope peptides of allergic components, are used as an adjunct to allergen-specific immunotherapy. We characterized a novel allergen, Tyr p 31, from Tyrophagus putrescentiae, a common allergenic mite. T. putrescentiae total RNA was amplified to Tyr p 31-encoding cDNA, which was inserted into pET28a(+). pET28a(+)-Tyr p 31 was then transformed into Rosetta 2 (DE3) pLysS cells and expressed under isopropyl β-D-thiogalactoside induction. Next, we visualized Tyr p 31 through sodium dodecyl sulfate polyacrylamide gel electrophoresis and Western blotting based on its theoretical molecular weight. Recombinant Tyr p 31 (rTyr p 31) was purified, and its secondary structure was noted to comprise α-helices, antiparallel coils, β-turns, parallel coils, and random coils. Our enzyme-linked immunosorbent assay and Western blotting results for T. putrescentiae-positive sera from children with allergic disorders demonstrated rTyr p 31-specific IgE-positivity rates of 72.41 % and 85.7 %, respectively. In BEAS-2B cells, rTyr p 31 increased IL-6 and IL-8 expression; furthermore, BEAS-2B cells treated with 30 μg/mL rTyr p 31 demonstrated 100 upregulated and 12 downregulated genes. In summary, we identified Tyr p 31, a novel T. putrescentiae allergen component, and noted rTyr p 31 to have a high IgE-binding rate and strong immunogenicity.
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Affiliation(s)
- Dongmei Zhou
- Clinical Research Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, PR China
| | - Yaning Ren
- Clinical Research Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, PR China
| | - Ying Zhou
- Department of Pediatrics Laboratory, The Affiliated Children's Hospital of Jiangnan University, Wuxi 214023, PR China
| | - Xuan Tao
- Respiratory Department, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, PR China
| | - Yuanfen Liao
- Clinical Research Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, PR China
| | - Cunyin Yuan
- Clinical Research Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, PR China
| | - Meiping Lu
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, PR China.
| | - Yubao Cui
- Clinical Research Center, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, PR China.
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Mallek NM, Martin EM, Dailey LA, McCullough SD. Liquid application dosing alters the physiology of air-liquid interface (ALI) primary human bronchial epithelial cell/lung fibroblast co-cultures and in vitro testing relevant endpoints. FRONTIERS IN TOXICOLOGY 2024; 5:1264331. [PMID: 38464699 PMCID: PMC10922929 DOI: 10.3389/ftox.2023.1264331] [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: 07/20/2023] [Accepted: 12/14/2023] [Indexed: 03/12/2024] Open
Abstract
Differentiated primary human bronchial epithelial cell (dpHBEC) cultures grown under air-liquid interface (ALI) conditions exhibit key features of the human respiratory tract and are thus critical for respiratory research as well as efficacy and toxicity testing of inhaled substances (e.g., consumer products, industrial chemicals, and pharmaceuticals). Many inhalable substances (e.g., particles, aerosols, hydrophobic substances, reactive substances) have physiochemical properties that challenge their evaluation under ALI conditions in vitro. Evaluation of the effects of these methodologically challenging chemicals (MCCs) in vitro is typically conducted by "liquid application," involving the direct application of a solution containing the test substance to the apical, air-exposed surface of dpHBEC-ALI cultures. We report that the application of liquid to the apical surface of a dpHBEC-ALI co-culture model results in significant reprogramming of the dpHBEC transcriptome and biological pathway activity, alternative regulation of cellular signaling pathways, increased secretion of pro-inflammatory cytokines and growth factors, and decreased epithelial barrier integrity. Given the prevalence of liquid application in the delivery of test substances to ALI systems, understanding its effects provides critical infrastructure for the use of in vitro systems in respiratory research as well as in the safety and efficacy testing of inhalable substances.
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Affiliation(s)
- Nicholas M. Mallek
- Curriculum in Toxicology and Environmental Medicine, University of North Carolina, Chapel Hill, NC, United States
| | - Elizabeth M. Martin
- Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Durham, NC, United States
| | - Lisa A. Dailey
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, Chapel Hill, NC, United States
| | - Shaun D. McCullough
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, Chapel Hill, NC, United States
- Exposure and Protection, RTI International, Durham, NC, United States
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Amma C, Inomata Y, Kohno R, Satake M, Furukawa A, Nagata Y, Sugiyama H, Seto T, Suzuki R. Copper in airborne fine particulate matter (PM 2.5) from urban sites causes the upregulation of pro-inflammatory cytokine IL-8 in human lung epithelial A549 cells. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:5879-5891. [PMID: 37179508 DOI: 10.1007/s10653-023-01599-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 04/27/2023] [Indexed: 05/15/2023]
Abstract
Fine atmospheric particles, such as PM2.5, are strongly related to the onset and exacerbation of inflammatory responses leading to the development of respiratory and cardiovascular diseases. PM2.5 is a complex mixture of tiny particles with different properties (i.e., size, morphology, and chemical components). Moreover, the mechanism by which PM2.5 induces inflammatory responses has not been fully elucidated. Therefore, it is necessary to determine the composition of PM2.5 to identify the main factors causing PM2.5-associated inflammation and diseases. In the present study, we investigated PM2.5 from two sites (Fukue, a remote monitoring site, and Kawasaki, an urban monitoring site) with greatly different environments and PM2.5 compositions. The results of ICP-MS and EDX-SEM indicated that PM2.5 from Kawasaki contained more metals and significantly induced the expression of the pro-inflammatory cytokine gene IL-8 compared to the PM2.5 from Fukue. We also verified the increased secretion of IL-8 protein from exposure to PM2.5 from Kawasaki. We further investigated their effects on inflammatory response and cytotoxicity using metal nanoparticles (Cu, Zn, and Ni) and ions and found that the Cu nanoparticles caused a dose-dependent increase in IL-8 expression together with significant cell death. We also found that Cu nanoparticles enhanced the secretion of IL-8 protein. These results suggest that Cu in PM2.5 is involved in lung inflammation.
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Affiliation(s)
- Chisato Amma
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-Machi, Kanazawa, 920-1192, Japan
| | - Yayoi Inomata
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Risa Kohno
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-Machi, Kanazawa, 920-1192, Japan
| | - Minami Satake
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-Machi, Kanazawa, 920-1192, Japan
| | - Atsushi Furukawa
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-Machi, Kanazawa, 920-1192, Japan
| | - Yuka Nagata
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-Machi, Kanazawa, 920-1192, Japan
| | - Hironori Sugiyama
- Instrumental Analysis Division, Engineering and Technology Department, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Takafumi Seto
- Faculty of Frontier Engineering, Institute of Science and Engineering, Kanazawa University, Kanazawa, 920-1192, Japan.
| | - Ryo Suzuki
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-Machi, Kanazawa, 920-1192, Japan.
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Xiong T, Bai X, Wei X, Wang L, Li F, Shi H, Shi Y. Exercise Rehabilitation and Chronic Respiratory Diseases: Effects, Mechanisms, and Therapeutic Benefits. Int J Chron Obstruct Pulmon Dis 2023; 18:1251-1266. [PMID: 37362621 PMCID: PMC10289097 DOI: 10.2147/copd.s408325] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023] Open
Abstract
Chronic respiratory diseases (CRD), is a group of disorders, primarily chronic obstructive pulmonary disease and asthma, which are characterized by high prevalence and disability, recurrent acute exacerbations, and multiple comorbidities, resulting in exercise limitations and reduced health-related quality of life. Exercise training, an important tool in pulmonary rehabilitation, reduces adverse symptoms in patients by relieving respiratory limitations, increasing gas exchange, increasing central and peripheral hemodynamic forces, and enhancing skeletal muscle function. Aerobic, resistance, and high-intensity intermittent exercises, and other emerging forms such as aquatic exercise and Tai Chi effectively improve exercise capacity, physical fitness, and pulmonary function in patients with CRD. The underlying mechanisms include enhancement of the body's immune response, better control of the inflammatory response, and acceleration of the interaction between the vagus and sympathetic nerves to improve gas exchange. Here, we reviewed the new evidence of benefits and mechanisms of exercise intervention in the pulmonary rehabilitation of patients with chronic obstructive pulmonary disease, bronchial asthma, bronchiectasis, interstitial lung disease, and lung cancer.
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Affiliation(s)
- Ting Xiong
- School of Exercise and Health, Shanghai University of Sport, Shanghai, 200438, People’s Republic of China
| | - Xinyue Bai
- School of Exercise and Health, Shanghai University of Sport, Shanghai, 200438, People’s Republic of China
| | - Xingyi Wei
- School of Exercise and Health, Shanghai University of Sport, Shanghai, 200438, People’s Republic of China
| | - Lezheng Wang
- School of Exercise and Health, Shanghai University of Sport, Shanghai, 200438, People’s Republic of China
| | - Fei Li
- School of Athletic Performance, Shanghai University of Sport, Shanghai, 200438, People’s Republic of China
| | - Hui Shi
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People’s Republic of China
| | - Yue Shi
- School of Athletic Performance, Shanghai University of Sport, Shanghai, 200438, People’s Republic of China
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Fadanni GP, Calixto JB. Recent progress and prospects for anti-cytokine therapy in preclinical and clinical acute lung injury. Cytokine Growth Factor Rev 2023; 71-72:13-25. [PMID: 37481378 DOI: 10.1016/j.cytogfr.2023.07.002] [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: 06/29/2023] [Accepted: 07/10/2023] [Indexed: 07/24/2023]
Abstract
Acute respiratory distress syndrome (ARDS) is a heterogeneous cause of respiratory failure that has a rapid onset, a high mortality rate, and for which there is no effective pharmacological treatment. Current evidence supports a critical role of excessive inflammation in ARDS, resulting in several cytokines, cytokine receptors, and proteins within their downstream signalling pathways being putative therapeutic targets. However, unsuccessful trials of anti-inflammatory drugs have thus far hindered progress in the field. In recent years, the prospects of precision medicine and therapeutic targeting of cytokines coevolving into effective treatments have gained notoriety. There is an optimistic and growing understanding of ARDS subphenotypes as well as advances in treatment strategies and clinical trial design. Furthermore, large trials of anti-cytokine drugs in patients with COVID-19 have provided an unprecedented amount of information that could pave the way for therapeutic breakthroughs. While current clinical and nonclinical ARDS research suggest relatively limited potential in monotherapy with anti-cytokine drugs, combination therapy has emerged as an appealing strategy and may provide new perspectives on finding safe and effective treatments. Accurate evaluation of these drugs, however, also relies on well-founded experimental research and the implementation of biomarker-guided stratification in future trials. In this review, we provide an overview of anti-cytokine therapy for acute lung injury and ARDS, highlighting the current preclinical and clinical evidence for targeting the main cytokines individually and the therapeutic prospects for combination therapy.
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Affiliation(s)
- Guilherme Pasetto Fadanni
- Centre of Innovation and Preclinical Studies (CIEnP), Florianópolis, Santa Catarina, Brazil; Department of Pharmacology, Centre of Biological Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil.
| | - João Batista Calixto
- Centre of Innovation and Preclinical Studies (CIEnP), Florianópolis, Santa Catarina, Brazil; Department of Pharmacology, Centre of Biological Sciences, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil.
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Neutrophil Extracellular Traps in Airway Diseases: Pathological Roles and Therapeutic Implications. Int J Mol Sci 2023; 24:ijms24055034. [PMID: 36902466 PMCID: PMC10003347 DOI: 10.3390/ijms24055034] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/27/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Neutrophils are important effector cells of the innate immune response that fight pathogens by phagocytosis and degranulation. Neutrophil extracellular traps (NETs) are released into the extracellular space to defend against invading pathogens. Although NETs play a defensive role against pathogens, excessive NETs can contribute to the pathogenesis of airway diseases. NETs are known to be directly cytotoxic to the lung epithelium and endothelium, highly involved in acute lung injury, and implicated in disease severity and exacerbation. This review describes the role of NET formation in airway diseases, including chronic rhinosinusitis, and suggests that targeting NETs could be a therapeutic strategy for airway diseases.
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Mallek NM, Martin EM, Dailey LA, McCullough SD. Liquid Application Dosing Alters the Physiology of Air-Liquid Interface Primary Bronchial Epithelial Cultures and In vitro Testing Relevant Endpoints. RESEARCH SQUARE 2023:rs.3.rs-2570280. [PMID: 36865279 PMCID: PMC9980280 DOI: 10.21203/rs.3.rs-2570280/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Differentiated Primary human bronchial epithelial cell (dpHBEC) cultures grown under air-liquid interface (ALI) conditions exhibit key features of the human respiratory tract and are thus critical for respiratory research as well as efficacy and toxicity testing of inhaled substances (e.g., consumer products, industrial chemicals, and pharmaceuticals). Many inhalable substances (e.g., particles, aerosols, hydrophobic substances, reactive substances) have physiochemical properties that challenge their evaluation under ALI conditions in vitro. Evaluation of the effects of these methodologically challenging chemicals (MCCs) in vitro is typically conducted by "liquid application," involving the direct application of a solution containing the test substance to the apical, air-exposed surface of dpHBEC-ALI cultures. We report that the application of liquid to the apical surface of a dpHBEC-ALI co-culture model results in significant reprogramming of the dpHBEC transcriptome and biological pathway activity, alternative regulation of cellular signaling pathways, increased secretion of pro-inflammatory cytokines and growth factors, and decreased epithelial barrier integrity. Given the prevalence of liquid application in the delivery of test substances to ALI systems, understanding its effects provides critical infrastructure for the use of in vitro systems in respiratory research as well as in the safety and efficacy testing of inhalable substances.
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8
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Yuliani FS, Chen JY, Cheng WH, Wen HC, Chen BC, Lin CH. Thrombin induces IL-8/CXCL8 expression by DCLK1-dependent RhoA and YAP activation in human lung epithelial cells. J Biomed Sci 2022; 29:95. [PMID: 36369000 PMCID: PMC9650896 DOI: 10.1186/s12929-022-00877-0] [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: 03/04/2022] [Accepted: 10/28/2022] [Indexed: 11/13/2022] Open
Abstract
Background Doublecortin-like kinase 1 (DCLK1) has been recognized as a marker of cancer stem cell in several malignancies. Thrombin is crucial in asthma severity as it can promote IL-8/CXCL8 production in lung epithelial cells, which is a potent chemoattractant for neutrophils. However, the pathologic role of DCLK1 in asthma and its involvement in thrombin-stimulated IL-8/CXCL8 expression remain unknown. Methods IL-8/CXCL8, thrombin, and DCLK1 expression were observed in the lung tissues of severe asthma patients and ovalbumin (OVA)-induced asthmatic mice model. A549 and BEAS-2B cells were either pretreated with inhibitors or small interfering RNAs (siRNAs) before being treated with thrombin. IL-8/CXCL8 expression and the molecules involved in signaling pathway were performed using ELISA, luciferase activity assay, Western blot, or ChIP assay. Results IL-8/CXCL8, thrombin, and DCLK1 were overexpressed in the lung tissues of severe asthma patients and ovalbumin (OVA)-induced asthmatic mice model. Our in vitro study found that DCLK siRNA or LRKK2-IN-1 (DCLK1 inhibitor) attenuated IL-8/CXCL8 release after thrombin induction in A549 and BEAS-2B cells. Thrombin activated DCLK1, RhoA, and YAP in a time-dependent manner, in which DCLK1 siRNA inhibited RhoA and YAP activation. YAP was dephosphorylated on the Ser127 site after thrombin stimulation, resulting in YAP translocation to the nucleus from the cytosol. DCLK1, RhoA and YAP activation following thrombin stimulation were inhibited by U0126 (ERK inhibitor). Moreover, DCLK1 and YAP siRNA inhibited κB-luciferase activity. Thrombin stimulated the recruitment of YAP and p65 to the NF-κB site of the IL-8/CXCL8 promoter and was inhibited by DCLK1 siRNA. Conclusions Thrombin activates the DCLK1/RhoA signaling pathway, which promotes YAP activation and translocation to the nucleus from the cytosol, resulting in YAP/p65 formation, and binding to the NF-κB site, which enhances IL-8/CXCL8 expression. DCLK1 might be essential in thrombin-stimulated IL-8/CXCL8 expression in asthmatic lungs and indicates a potential therapeutic strategy for severe asthma treatment.
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Lucas JH, Wang Q, Rahman I. Perfluorooctane Sulfonic Acid Disrupts Protective Tight Junction Proteins via Protein Kinase D in Airway Epithelial Cells. Toxicol Sci 2022; 190:215-226. [PMID: 36106993 PMCID: PMC9960012 DOI: 10.1093/toxsci/kfac096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Perfluorooctane sulfonic acid (PFOS) is a long chain per- and polyfluoroalklyl substance (PFAS) that has been used in aqueous film-forming foams. Emerging epidemiological evidence indicates that PFOS may be associated with chronic lung diseases such as asthma and analysis of human tissues demonstrates that the lungs carry a significant body burden of PFOS. Deficits in barrier function are a major risk factor for asthma. Thus, we hypothesized that PFOS exposure will lead to impaired epithelial barrier function through dysregulated tight junctions. Hence, we assessed the impact of PFOS on epithelial barrier integrity. Bronchial epithelial cells (16HBE) were grown on collagen-coated transwells and treated to 5-25 μM PFOS, and assessed for changes in barrier function and tight junction proteins. Rescue experiments were performed using the protein kinase D (PKD) inhibitor, CID755673. PFOS treatment reduced transepithelial electrical resistance (TEER) and increased 4 kDa FITC-dextran flux. Additionally, PFOS significantly decreased protein levels and the tight junction organization rate of occludin and zonula occludens 1. Increased phosphorylation (Ser744/Ser748) of PKD was observed 3 h following PFOS treatment. Pretreatment with the PKD inhibitor attenuated PFOS-mediated changes in TEER and FITC-dextran flux and restored occludin protein levels. In conclusion, PFOS causes loss of airway barrier integrity and the disruption of tight junctions in bronchial epithelial cells, which was partly attenuated through the inhibition of PKD. These findings demonstrate that PFOS is capable of disrupting airway barrier function, a potentially driving factor underlying associations between PFOS and respiratory diseases such as asthma.
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Affiliation(s)
- Joseph H Lucas
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 14642, USA
| | - Qixin Wang
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York 14642, USA
| | - Irfan Rahman
- To whom correspondence should be addressed at Department of Environmental Medicine, University of Rochester Medical Center Box 850, 601 Elmwood Avenue, Rochester, NY 14642, USA. E-mail:
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Wuniqiemu T, Teng F, Qin J, Lv Y, Nabijan M, Luo Q, Zhou Y, Cui J, Yi L, Tang W, Zhu X, Wang S, Abduwaki M, Nurahmat M, Wei Y, Dong JC. Iristectorigenin A exerts novel protective properties against airway inflammation and mucus hypersecretion in OVA-induced asthmatic mice: Iristectorigenin A ameliorates asthma phenotype. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 104:154252. [PMID: 35752075 DOI: 10.1016/j.phymed.2022.154252] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 05/27/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Despite the substantial amount of efforts made to reduce morbidity and improve respiratory management, asthma control remained a major challenge for severe patients. Plant isoflavones, one of the most estrogenic compounds, are considered a potential alternative therapy for asthma. Iristectorigenin A, a naturally occurring isoflavone, is extracted from a variety of medical plants and its biological activity has not been reported previously. PURPOSE In present study, we aim to reveal the potential therapeutic role of Iristectorigenin A against acute asthmatic mice. STUDY DESIGN We established ovalbumin (OVA) induced asthmatic murine model and orally administrated Iristectorigenin A at concentration of 5 and 10 mg/kg and dexamethasone as a positive control substance. METHODS Asthmatic murine model was established with OVA sensitization and challenge. Lung function was assessed with FinePoint Ventilation system recording lung resistance (RI) and lung compliance (Cydn). White cells were sorted and counted in BALF. Histopathological assessment was conducted by H&E, PAS, and Masson's trichrome staining on paraffin embedded lung tissues. BALF content of IL-4, IL-5, IL-33, IL-13, INF-γ, IL-9 and serum IgE, IgG1 were measured using ELISA kit. Expression levels of mRNAs associated with inflammatory cytokines and goblet cell metaplasia were evaluated via quantitative RT-PCR. Protein expression levels of FOXA3, MUC5AC, SPDEF were estimated by immunohistochemistry on lung tissue, while NOTCH1 and NOTCH2 expressions were evaluated by western blotting analysis. RESULTS Iristectorigenin A resulted in improved airway hyperresponsiveness (AHR) mirrored by decreased RI and increased Cydn. With Iristectorigenin A, we also observed reduced number of BALF leukocytes, improved inflammatory cell infiltration in lung tissue, decreased content of BALF IL-4, IL-5, IL-33, but not IL-13, INF-γ, IL-9, and their mRNA levels, along with decreased levels of OVA-specific IgE, IgG1 in asthmatic mice. Additionally, Iristectorigenin A exhibited significant therapeutic potential on attenuating mucus production reflected by mitigated FOXA3 and MUC5AC immunostaining on the airway epithelium, as well as decreased mRNAs associated with goblet cell metaplasia. At last, a decrease in elevated expression level of NOTCH2, but not NOTCH1, in asthmatic mice lung tissue was observed by western blotting analysis. CONCLUSION Our study provides strong evidence that Iristectorigenin A can be potential therapeutic agent ameliorating airway inflammation and mucus hypersecretion in allergic asthma. This is a first research reported the potential of Iristectorigenin A as an alternative therapeutic agent.
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Affiliation(s)
- Tulake Wuniqiemu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China.
| | - Fangzhou Teng
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China.
| | - Jingjing Qin
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Yubao Lv
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Mohammadtursun Nabijan
- 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
| | - Yaolong Zhou
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Jie Cui
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - La Yi
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Weifeng Tang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Xueyi Zhu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Shiyuan Wang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Muhammadjan Abduwaki
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Mammat Nurahmat
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Ying Wei
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China.
| | - Jing Cheng Dong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China.
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“The Good, the Bad and the Ugly”: Interplay of Innate Immunity and Inflammation. Cell Microbiol 2022. [DOI: 10.1155/2022/2759513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Innate immunity recognizes microorganisms through certain invariant receptors named pattern recognition receptors (PRRs) by sensing conserved pathogen-associated molecular patterns (PAMPs). Their recognition activates several signaling pathways that lead the transcription of inflammatory mediators, contributing to trigger a very rapid inflammatory cascade aiming to contain the local infection as well as activating and instructing the adaptive immunity in a specific and synchronized immune response according to the microorganism. Inflammation is a coordinated process involving the secretion of cytokines and chemokines by macrophages and neutrophils leading to the migration of other leukocytes along the endothelium into the injured tissue. Sustained inflammatory responses can cause deleterious effects by promoting the development of autoimmune disorders, allergies, cancer, and other immune pathologies, while weak signals could exacerbate the severity of the disease. Therefore, PRR-mediated signal transduction must be tightly regulated to maintain host immune homeostasis. Innate immunity deficiencies and strategies deployed by microbes to avoid inflammatory responses lead to an altered immune response that allows the pathogen to proliferate causing death or uncontrolled inflammation. This review analyzes the complexity of the immune response at the beginning of the disease focusing on COVID-19 disease and the importance of unraveling its mechanisms to be considered when treating diseases and designing vaccines.
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Watanabe S, Kobayashi K, Suzukawa M, Igarashi S, Takada K, Imoto S, Kitani M, Fukami T, Nagase T, Ohta K. Identification of ANXA2 on epithelial cells as a new receptor for secretory IgA using immunoprecipitation and mass spectrometry. Clin Exp Immunol 2022; 208:351-360. [PMID: 35511485 PMCID: PMC9226145 DOI: 10.1093/cei/uxac043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/29/2022] [Accepted: 04/29/2022] [Indexed: 11/15/2022] Open
Abstract
Secretory immunoglobulin A plays an important role in the protection against exogenous pathogens and antigens, but it has also been reported to have pathogenic potential. We previously found that secretory immunoglobulin A accumulated in the peripheral lungs during idiopathic pulmonary fibrosis and that transferrin receptor/CD71 was partially involved in secretory immunoglobulin A-induced inflammatory cytokine production in A549 cells. This study aimed to identify the receptor responsible for the induction of cytokine production by secretory immunoglobulin A-stimulated airway epithelial cells. To this end, immunoprecipitation followed by time-of-flight mass spectrometry and peptide mass fingerprinting were performed and Annexin A2 was detected as a novel receptor for secretory immunoglobulin A. Enzyme-linked immunosorbent assay demonstrated binding of secretory immunoglobulin A to Annexin A2, and flow cytometry showed robust expression of Annexin A2 on the surface of BEAS-2B cells, A549 cells, and normal human bronchial/tracheal epithelial cells. Experiments in A549 cells using Annexin A2 small interfering RNA and neutralizing antibodies suggested that Annexin A2 was partially involved in the production of interleukin-8/CXCL8 and C-C motif chemokine ligand 2/monocyte chemoattractant protein-1 induced by secretory immunoglobulin A. Immunohistochemistry using lung sections revealed clear expression of Annexin A2 on airway epithelial cells, although the staining remained equivalent in idiopathic pulmonary fibrosis, asthma, and healthy control lungs. In conclusion, we identified that Annexin A2 expressed in airway epithelial cells is a novel receptor for secretory immunoglobulin A, which is involved in cytokine synthesis.
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Affiliation(s)
- Shizuka Watanabe
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.,Department of Respiratory Medicine, University of Tokyo, Tokyo, Japan
| | - Koichi Kobayashi
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.,Department of Respiratory Medicine, University of Tokyo, Tokyo, Japan.,Department of Internal medicine, Yoshikawa Central General Hospital, Saitama, Japan
| | - Maho Suzukawa
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Sayaka Igarashi
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Kazufumi Takada
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.,Department of Geriatric Medicine, University of Tokyo, Tokyo, Japan
| | - Sahoko Imoto
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.,Department of Respiratory Medicine, University of Tokyo, Tokyo, Japan
| | - Masashi Kitani
- Department of Pathology, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Takeshi Fukami
- Department of Surgery, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
| | - Takahide Nagase
- Department of Respiratory Medicine, University of Tokyo, Tokyo, Japan
| | - Ken Ohta
- Clinical Research Center, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.,Japan Anti-Tuberculosis Association (JATA), Fukujuji Hospital, Tokyo, Japan
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13
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Zissler UM, Thron A, Eckrich J, Bakhtiar S, Schubert R, Zielen S. Bronchial inflammation biomarker patterns link humoral immunodeficiency with bronchiectasis-related small airway dysfunction. Clin Exp Allergy 2022; 52:760-773. [PMID: 35353925 DOI: 10.1111/cea.14140] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/09/2022] [Accepted: 03/27/2022] [Indexed: 12/16/2022]
Abstract
BACKGROUND The progression of chronic destructive lung disease in patients with humoral immunodeficiency (ID) and concomitant development of bronchiectasis is difficult to prevent. Lung function tests in these patients typically show bronchial obstruction of the small airways in combination with increased air trapping in the distal airways, which is consistent with small airway dysfunction. OBJECTIVE The objective was to assess the grade of chronic lower airway inflammation and small airway dysfunction from induced sputum and the corresponding local pro-inflammatory mediator pattern to discriminate patients affected by bronchiectasis-related Small Airway Dysfunction (SAD). METHODS In a prospective design, 22 patients with ID (14 CVID, 3 XLA, 3 hyper-IgM syndrome, 1 hyper-IgE syndrome and low IgG levels due to treatment with rituximab and 1 SCID after BMT and persistent humoral defect) and 21 healthy controls were examined. Lung function, Fraction Expiratory Nitric Oxide (FeNO) and pro-inflammatory cytokine levels were compared in subsets of patients with (ID + BE) and without bronchiectasis (ID) pre-stratified using high-resolution computed tomography (HRCT) scans and control subjects. RESULTS Analysis of induced sputum showed significantly increased total cell counts and severe neutrophilic inflammation in ID. The concomitant SAD revealed higher total cell numbers compared to ID. Bronchial inflammation in ID is clearly mirrored by pro-inflammatory mediators IL-1β, IL-6 and CXCL-8, whilst TNF-α revealed a correlation with lung function parameters altered in the context of bronchiectasis-related Small Airway Dysfunction. CONCLUSIONS In spite of immunoglobulin substitution, bronchial inflammation was dominated by neutrophils and was highly increased in patients with ID + BE. Notably, the pro-inflammatory cytokines in patients with ID were significantly increased in induced sputum. The context-dependent cytokine pattern in relation to the presence of concomitant bronchiectasis associated with SAD in ID patients could be helpful in delimiting ID patient subgroups and individualizing therapeutic approaches.
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Affiliation(s)
- Ulrich M Zissler
- Center of Allergy & Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, German Research Center for Environmental Health, Germany, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Aljoscha Thron
- Division of Allergology, Pulmonology and Cystic Fibrosis, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| | - Jonas Eckrich
- Department of Otorhinolaryngology, University Medical Center Bonn (UKB), Bonn, Germany
| | - Shahrzad Bakhtiar
- Division for Stem Cell Transplantation, Immunology and Intensive Care Unit, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| | - Ralf Schubert
- Division of Allergology, Pulmonology and Cystic Fibrosis, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| | - Stefan Zielen
- Division of Allergology, Pulmonology and Cystic Fibrosis, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
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14
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Greven J, Vollrath JT, Bläsius F, He Z, Bolierakis E, Horst K, Störmann P, Nowak AJ, Simic M, Marzi I, Hildebrand F, Relja B. Club cell protein (CC)16 as potential lung injury marker in a porcine 72 h polytrauma model. Eur J Trauma Emerg Surg 2022; 48:4719-4726. [PMID: 35596754 DOI: 10.1007/s00068-022-01997-w] [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: 02/07/2022] [Accepted: 05/01/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Polytrauma and respiratory tract damage after thoracic trauma cause about 25% of mortality among severely injured patients. Thoracic trauma can lead to the development of severe lung complications such as acute respiratory distress syndrome, and is, therefore, of great interest for monitoring in intensive care units (ICU). In recent years, club cell protein (CC)16 with its antioxidant properties has proven to be a potential outcome-related marker. In this study, we evaluated whether CC16 constitutes as a marker of lung damage in a porcine polytrauma model. METHODS In a 72 h ICU polytrauma pig model (thoracic trauma, tibial fracture, hemorrhagic shock, liver laceration), blood plasma samples (0, 3, 9, 24, 48, 72 h), BAL samples (72 h) and lung tissue (72 h) were collected. The trauma group (PT) was compared to a sham group. CC16 as a possible biomarker for lung injury in this model, and IL-8 concentrations as known indicator for ongoing inflammation during trauma were determined by ELISA. Histological analysis of ZO-1 and determination of total protein content were used to show barrier disruption and edema formation in lung tissue from the trauma group. RESULTS Systemic CC16 levels were significantly increased early after polytrauma compared vs. sham. After 72 h, CC16 concentration was significantly increased in lung tissue as well as in BAL in PT vs. sham. Similarly, IL-8 and total protein content in BAL were significantly increased in PT vs. sham. Evaluation of ZO-1 staining showed significantly lower signal intensity for polytrauma. CONCLUSION The data confirm for the first time in a larger animal polytrauma model that lung damage was indicated by systemic and/or local CC16 response. Thus, early plasma and late BAL CC16 levels might be suitable to be used as markers of lung injury in this polytrauma model.
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Affiliation(s)
- Johannes Greven
- Department of Trauma and Reconstructive Surgery, RWTH Aachen University, Aachen, Germany
| | - Jan Tilmann Vollrath
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University, Frankfurt, Germany
| | - Felix Bläsius
- Department of Trauma and Reconstructive Surgery, RWTH Aachen University, Aachen, Germany
| | - Zhizhen He
- Department of Trauma and Reconstructive Surgery, RWTH Aachen University, Aachen, Germany
| | - Eftychios Bolierakis
- Department of Trauma and Reconstructive Surgery, RWTH Aachen University, Aachen, Germany
| | - Klemens Horst
- Department of Trauma and Reconstructive Surgery, RWTH Aachen University, Aachen, Germany
| | - Philipp Störmann
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University, Frankfurt, Germany
| | - Aleksander J Nowak
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto-von-Guericke University, 39120, Magdeburg, Germany
| | - Marija Simic
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto-von-Guericke University, 39120, Magdeburg, Germany
| | - Ingo Marzi
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University, Frankfurt, Germany
| | - Frank Hildebrand
- Department of Trauma and Reconstructive Surgery, RWTH Aachen University, Aachen, Germany
| | - Borna Relja
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto-von-Guericke University, 39120, Magdeburg, Germany.
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15
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Emerging Glycation-Based Therapeutics-Glyoxalase 1 Inducers and Glyoxalase 1 Inhibitors. Int J Mol Sci 2022; 23:ijms23052453. [PMID: 35269594 PMCID: PMC8910005 DOI: 10.3390/ijms23052453] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 12/13/2022] Open
Abstract
The abnormal accumulation of methylglyoxal (MG) leading to increased glycation of protein and DNA has emerged as an important metabolic stress, dicarbonyl stress, linked to aging, and disease. Increased MG glycation produces inactivation and misfolding of proteins, cell dysfunction, activation of the unfolded protein response, and related low-grade inflammation. Glycation of DNA and the spliceosome contribute to an antiproliferative and apoptotic response of high, cytotoxic levels of MG. Glyoxalase 1 (Glo1) of the glyoxalase system has a major role in the metabolism of MG. Small molecule inducers of Glo1, Glo1 inducers, have been developed to alleviate dicarbonyl stress as a prospective treatment for the prevention and early-stage reversal of type 2 diabetes and prevention of vascular complications of diabetes. The first clinical trial with the Glo1 inducer, trans-resveratrol and hesperetin combination (tRES-HESP)-a randomized, double-blind, placebo-controlled crossover phase 2A study for correction of insulin resistance in overweight and obese subjects, was completed successfully. tRES-HESP corrected insulin resistance, improved dysglycemia, and low-grade inflammation. Cell permeable Glo1 inhibitor prodrugs have been developed to induce severe dicarbonyl stress as a prospective treatment for cancer-particularly for high Glo1 expressing-related multidrug-resistant tumors. The prototype Glo1 inhibitor is prodrug S-p-bromobenzylglutathione cyclopentyl diester (BBGD). It has antitumor activity in vitro and in tumor-bearing mice in vivo. In the National Cancer Institute human tumor cell line screen, BBGD was most active against the glioblastoma SNB-19 cell line. Recently, potent antitumor activity was found in glioblastoma multiforme tumor-bearing mice. High Glo1 expression is a negative survival factor in chemotherapy of breast cancer where adjunct therapy with a Glo1 inhibitor may improve treatment outcomes. BBGD has not yet been evaluated clinically. Glycation by MG now appears to be a pathogenic process that may be pharmacologically manipulated for therapeutic outcomes of potentially important clinical impact.
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16
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Lee JW, Kim MN, Kim EG, Leem JS, Baek SM, Kim MJ, Kim KW, Sohn MH. Chitinase 3-like 1 is involved in the induction of IL-8 expression by double-stranded RNA in airway epithelial cells. Biochem Biophys Res Commun 2022; 592:106-112. [PMID: 35033868 DOI: 10.1016/j.bbrc.2022.01.008] [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: 11/11/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 11/25/2022]
Abstract
Viral respiratory infection causes inflammatory lung disease. Chitinase 3-like 1 (CHI3L1) contributes to airway inflammation, but its role in human airway epithelial cells following viral infection is unclear. Thus, we investigated whether CHI3L1 regulates inflammatory responses caused by viral infections in airway epithelial cells. Human bronchial epithelial cells, BEAS-2B, were stimulated with a synthetic analog of viral double-stranded RNA, polyinosinic:polycytidylic acid (poly(I:C)). To confirm the specific role of CHI3L1, CHI3L1 was knocked down in BEAS-2B cells using shRNA lentivirus. The expression of CHI3L1 and proinflammatory cytokines such as IL-8 and phosphorylation of mitogen-activated protein kinase (MAPK) pathways were analyzed. In addition to poly(I:C), BEAS-2B cells were infected with the human respiratory syncytial virus (RSV) A2 strain, and CHI3L1 and IL-8 expression was analyzed. Stimulating the cells with poly(I:C) increased CHI3L1 and IL-8 expression, whereas IL-8 expression was abrogated in CHI3L1 knockdown BEAS-2B cells. Poly(I:C) stimulation of BEAS-2B cells resulted in phosphorylation of MAPK pathways, and inhibition of MAPK pathways significantly abolished IL-8 secretion. Phosphorylation of MAPK pathways was diminished in CHI3L1 knockdown BEAS-2B cells. Infection with RSV increased CHI3L1 and IL-8 expression. IL-8 expression induced by RSV infection was abrogated in CHI3L1 knockdown cells. In conclusion, CHI3L1 may be involved in IL-8 secretion by regulating MAPK pathways during respiratory viral infections in airway epithelial cells.
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Affiliation(s)
- Jae Woo Lee
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project, Yonsei University College of Medicine, 134 Sinchon-Dong, Seoul, 03722, South Korea.
| | - Mi Na Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project, Yonsei University College of Medicine, 134 Sinchon-Dong, Seoul, 03722, South Korea.
| | - Eun Gyul Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project, Yonsei University College of Medicine, 134 Sinchon-Dong, Seoul, 03722, South Korea.
| | - Ji Su Leem
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project, Yonsei University College of Medicine, 134 Sinchon-Dong, Seoul, 03722, South Korea.
| | - Seung Min Baek
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project, Yonsei University College of Medicine, 134 Sinchon-Dong, Seoul, 03722, South Korea.
| | - Min Jung Kim
- Department of Pediatrics, Yonsei University Yongin Severance Hospital, 363 Dongbaekjukjeon-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 16995, South Korea.
| | - Kyung Won Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project, Yonsei University College of Medicine, 134 Sinchon-Dong, Seoul, 03722, South Korea.
| | - Myung Hyun Sohn
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 Project, Yonsei University College of Medicine, 134 Sinchon-Dong, Seoul, 03722, South Korea.
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17
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Zuo J, Tong Y, Yang Y, Wang Y, Yue D. Claudin-18 expression under hyperoxia in neonatal lungs of bronchopulmonary dysplasia model rats. Front Pediatr 2022; 10:916716. [PMID: 36299696 PMCID: PMC9589239 DOI: 10.3389/fped.2022.916716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 09/21/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Bronchopulmonary dysplasia (BPD) is characterized by impaired alveolar and microvascular development. Claudin-18 is the only known lung-specific tight junction protein affecting the development and transdifferentiation of alveolar epithelium. OBJECTIVE We aimed to explore the changes in the expression of claudin-18, podoplanin, SFTPC, and the canonical WNT pathway, in a rat model of hyperoxia-induced BPD, and to verify the regulatory relationship between claudin-18 and the canonical WNT pathway by cell experiments. METHODS A neonatal rat and cell model of BPD was established by exposing to hyperoxia (85%). Hematoxylin and eosin (HE) staining was used to confirm the establishment of the BPD model. The mRNA levels were assessed using quantitative real-time polymerase chain reaction(qRT-PCR). Protein expression levels were determined using western blotting, immunohistochemical staining, and immunofluorescence. RESULTS As confirmed by HE staining, the neonatal rat model of BPD was successfully established. Compared to that in the control group, claudin-18 and claudin-4 expression decreased in the hyperoxia group. Expression of β-catenin in the WNT signaling pathway decreased, whereas that of p-GSK-3β increased. Expression of the AEC II marker SFTPC initially decreased and then increased, whereas that of the AEC I marker podoplanin increased on day 14 (P < 0.05). Similarly, claudin-18, claudin-4, SFTPC and β-catenin were decreased but podoplanin was increased when AEC line RLE-6TN exposed to 85% hyperoxia. And the expression of SFTPC was increased, the podoplanin was decreased, and the WNT pathway was upregulated when claudin-18 was overexpressed. CONCLUSIONS Claudin-18 downregulation during hyperoxia might affect lung development and maturation, thereby resulting in hyperoxia-induced BPD. Additionally, claudin-18 is associated with the canonical WNT pathway and AECs transdifferentiation.
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Affiliation(s)
- Jingye Zuo
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yajie Tong
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yuting Yang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yirui Wang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Dongmei Yue
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
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18
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Schetters STT, Schuijs MJ. Pulmonary Eosinophils at the Center of the Allergic Space-Time Continuum. Front Immunol 2021; 12:772004. [PMID: 34868033 PMCID: PMC8634472 DOI: 10.3389/fimmu.2021.772004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/27/2021] [Indexed: 01/01/2023] Open
Abstract
Eosinophils are typically a minority population of circulating granulocytes being released from the bone-marrow as terminally differentiated cells. Besides their function in the defense against parasites and in promoting allergic airway inflammation, regulatory functions have now been attributed to eosinophils in various organs. Although eosinophils are involved in the inflammatory response to allergens, it remains unclear whether they are drivers of the asthma pathology or merely recruited effector cells. Recent findings highlight the homeostatic and pro-resolving capacity of eosinophils and raise the question at what point in time their function is regulated. Similarly, eosinophils from different physical locations display phenotypic and functional diversity. However, it remains unclear whether eosinophil plasticity remains as they develop and travel from the bone marrow to the tissue, in homeostasis or during inflammation. In the tissue, eosinophils of different ages and origin along the inflammatory trajectory may exhibit functional diversity as circumstances change. Herein, we outline the inflammatory time line of allergic airway inflammation from acute, late, adaptive to chronic processes. We summarize the function of the eosinophils in regards to their resident localization and time of recruitment to the lung, in all stages of the inflammatory response. In all, we argue that immunological differences in eosinophils are a function of time and space as the allergic inflammatory response is initiated and resolved.
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Affiliation(s)
- Sjoerd T T Schetters
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Martijn J Schuijs
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
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19
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Environmental Exposures and Lung Aging: Molecular Mechanisms and Implications for Improving Respiratory Health. Curr Environ Health Rep 2021; 8:281-293. [PMID: 34735706 PMCID: PMC8567983 DOI: 10.1007/s40572-021-00328-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE OF REVIEW Inhaled environmental exposures cause over 12 million deaths per year worldwide. Despite localized efforts to reduce environmental exposures, tobacco smoking and air pollution remain the urgent public health challenges that are contributing to the growing prevalence of respiratory diseases. The purpose of this review is to describe the mechanisms through which inhaled environmental exposures accelerate lung aging and cause overt lung disease. RECENT FINDINGS Environmental exposures related to fossil fuel and tobacco combustion and occupational exposures related to silica and coal mining generate oxidative stress and inflammation in the lungs. Sustained oxidative stress causes DNA damage, epigenetic instability, mitochondrial dysfunction, and cell cycle arrest in key progenitor cells in the lung. As a result, critical repair mechanisms are impaired, leading to premature destruction of the lung parenchyma. Inhaled environmental exposures accelerate lung aging by injuring the lungs and damaging the cells responsible for wound healing. Interventions that minimize exposure to noxious antigens are critical to improve lung health, and novel research is required to expand our knowledge of therapies that may slow or prevent premature lung aging.
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20
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Muruganandah V, Kupz A. Immune responses to bacterial lung infections and their implications for vaccination. Int Immunol 2021; 34:231-248. [PMID: 34850883 DOI: 10.1093/intimm/dxab109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 11/28/2021] [Indexed: 11/14/2022] Open
Abstract
The pulmonary immune system plays a vital role in protecting the delicate structures of gaseous exchange against invasion from bacterial pathogens. With antimicrobial resistance becoming an increasing concern, finding novel strategies to develop vaccines against bacterial lung diseases remains a top priority. In order to do so, a continued expansion of our understanding of the pulmonary immune response is warranted. Whilst some aspects are well characterised, emerging paradigms such as the importance of innate cells and inducible immune structures in mediating protection provide avenues of potential to rethink our approach to vaccine development. In this review, we aim to provide a broad overview of both the innate and adaptive immune mechanisms in place to protect the pulmonary tissue from invading bacterial organisms. We use specific examples from several infection models and human studies to depict the varying functions of the pulmonary immune system that may be manipulated in future vaccine development. Particular emphasis has been placed on emerging themes that are less reviewed and underappreciated in vaccine development studies.
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Affiliation(s)
- Visai Muruganandah
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD 4878, Australia
| | - Andreas Kupz
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD 4878, Australia
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21
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Meikle CKS, Creeden JF, McCullumsmith C, Worth RG. SSRIs: Applications in inflammatory lung disease and implications for COVID-19. Neuropsychopharmacol Rep 2021; 41:325-335. [PMID: 34254465 PMCID: PMC8411309 DOI: 10.1002/npr2.12194] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 05/17/2021] [Accepted: 07/02/2021] [Indexed: 12/15/2022] Open
Abstract
Selective serotonin reuptake inhibitors (SSRIs) have anti-inflammatory properties that may have clinical utility in treating severe pulmonary manifestations of COVID-19. SSRIs exert anti-inflammatory effects at three mechanistic levels: (a) inhibition of proinflammatory transcription factor activity, including NF-κB and STAT3; (b) downregulation of lung tissue damage and proinflammatory cell recruitment via inhibition of cytokines, including IL-6, IL-8, TNF-α, and IL-1β; and (c) direct suppression inflammatory cells, including T cells, macrophages, and platelets. These pathways are implicated in the pathogenesis of COVID-19. In this review, we will compare the pathogenesis of lung inflammation in pulmonary diseases including COVID-19, ARDS, and chronic obstructive pulmonary disease (COPD), describe the anti-inflammatory properties of SSRIs, and discuss the applications of SSRIS in treating COVID-19-associated inflammatory lung disease.
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Affiliation(s)
- Claire Kyung Sun Meikle
- Department of Medical Microbiology and Immunology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Justin Fortune Creeden
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA.,Department of Psychiatry, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Cheryl McCullumsmith
- Department of Psychiatry, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Randall G Worth
- Department of Medical Microbiology and Immunology, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
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22
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Rabbani N, Xue M, Weickert MO, Thornalley PJ. Reversal of Insulin Resistance in Overweight and Obese Subjects by trans-Resveratrol and Hesperetin Combination-Link to Dysglycemia, Blood Pressure, Dyslipidemia, and Low-Grade Inflammation. Nutrients 2021; 13:2374. [PMID: 34371884 PMCID: PMC8308792 DOI: 10.3390/nu13072374] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/03/2021] [Accepted: 07/07/2021] [Indexed: 02/07/2023] Open
Abstract
The dietary supplement, trans-resveratrol and hesperetin combination (tRES-HESP), induces expression of glyoxalase 1, countering the accumulation of reactive dicarbonyl glycating agent, methylglyoxal (MG), in overweight and obese subjects. tRES-HESP produced reversal of insulin resistance, improving dysglycemia and low-grade inflammation in a randomized, double-blind, placebo-controlled crossover study. Herein, we report further analysis of study variables. MG metabolism-related variables correlated with BMI, dysglycemia, vascular inflammation, blood pressure, and dyslipidemia. With tRES-HESP treatment, plasma MG correlated negatively with endothelial independent arterial dilatation (r = -0.48, p < 0.05) and negatively with peripheral blood mononuclear cell (PBMC) quinone reductase activity (r = -0.68, p < 0.05)-a marker of the activation status of transcription factor Nrf2. For change from baseline of PBMC gene expression with tRES-HESP treatment, Glo1 expression correlated negatively with change in the oral glucose tolerance test area-under-the-curve plasma glucose (ΔAUGg) (r = -0.56, p < 0.05) and thioredoxin interacting protein (TXNIP) correlated positively with ΔAUGg (r = 0.59, p < 0.05). Tumor necrosis factor-α (TNFα) correlated positively with change in fasting plasma glucose (r = 0.70, p < 0.001) and negatively with change in insulin sensitivity (r = -0.68, p < 0.01). These correlations were not present with placebo. tRES-HESP decreased low-grade inflammation, characterized by decreased expression of CCL2, COX-2, IL-8, and RAGE. Changes in CCL2, IL-8, and RAGE were intercorrelated and all correlated positively with changes in MLXIP, MAFF, MAFG, NCF1, and FTH1, and negatively with changes in HMOX1 and TKT; changes in IL-8 also correlated positively with change in COX-2. Total urinary excretion of tRES and HESP metabolites were strongly correlated. These findings suggest tRES-HESP counters MG accumulation and protein glycation, decreasing activation of the unfolded protein response and expression of TXNIP and TNFα, producing reversal of insulin resistance. tRES-HESP is suitable for further evaluation for treatment of insulin resistance and related disorders.
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Affiliation(s)
- Naila Rabbani
- Department of Basic Medical Science, College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Mingzhan Xue
- Diabetes Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha P.O. Box 34110, Qatar;
| | - Martin O. Weickert
- Endocrinology & Metabolism, Warwickshire Institute for the Study of Diabetes, University Hospitals of Coventry & Warwickshire NHS Trust, Coventry CV2 2DX, UK;
| | - Paul J. Thornalley
- Diabetes Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha P.O. Box 34110, Qatar;
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Liu M, Wu K, Lin J, Xie Q, Liu Y, Huang Y, Zeng J, Yang Z, Wang Y, Dong S, Deng W, Yang M, Wu S, Jiang W, Li X. Emerging Biological Functions of IL-17A: A New Target in Chronic Obstructive Pulmonary Disease? Front Pharmacol 2021; 12:695957. [PMID: 34305606 PMCID: PMC8294190 DOI: 10.3389/fphar.2021.695957] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/23/2021] [Indexed: 01/10/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory disease that causes high rates of disability and mortality worldwide because of severe progressive and irreversible symptoms. During the period of COPD initiation and progression, the immune system triggers the activation of various immune cells, including Regulatory T cells (Tregs), dendritic cells (DCs) and Th17 cells, and also the release of many different cytokines and chemokines, such as IL-17A and TGF-β. In recent years, studies have focused on the role of IL-17A in chronic inflammation process, which was found to play a highly critical role in facilitating COPD. Specially, IL-17A and its downstream regulators are potential therapeutic targets for COPD. We mainly focused on the possibility of IL-17A signaling pathways that involved in the progression of COPD; for instance, how IL-17A promotes airway remodeling in COPD? How IL-17A facilitates neutrophil inflammation in COPD? How IL-17A induces the expression of TSLP to promote the progression of COPD? Whether the mature DCs and Tregs participate in this process and how they cooperate with IL-17A to accelerate the development of COPD? And above associated studies could benefit clinical application of therapeutic targets of the disease. Moreover, four novel efficient therapies targeting IL-17A and other molecules for COPD are also concluded, such as Bufei Yishen formula (BYF), a Traditional Chinese Medicine (TCM), and curcumin, a natural polyphenol extracted from the root of Curcuma longa.
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Affiliation(s)
- Meiling Liu
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital; State Key Laboratory of Respiratory Disease, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Kang Wu
- Shenzhen Luohu People's Hospital, The Third Affiliated Hospital of Shenzhen University, Shenzhen, China.,South China Hospital, Shenzhen University, Shenzhen, China
| | - Jinduan Lin
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital; State Key Laboratory of Respiratory Disease, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Qingqiang Xie
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital; State Key Laboratory of Respiratory Disease, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Yuan Liu
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital; State Key Laboratory of Respiratory Disease, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Yin Huang
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital; State Key Laboratory of Respiratory Disease, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Jun Zeng
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital; State Key Laboratory of Respiratory Disease, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Zhaogang Yang
- Department of Radiation Oncology, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Yifan Wang
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Shiyan Dong
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Weiye Deng
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Mingming Yang
- Department of Radiation Oncology, The University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Song Wu
- Shenzhen Luohu People's Hospital, The Third Affiliated Hospital of Shenzhen University, Shenzhen, China.,South China Hospital, Shenzhen University, Shenzhen, China
| | - Wen Jiang
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Xuefeng Li
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital; State Key Laboratory of Respiratory Disease, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China.,Shenzhen Luohu People's Hospital, The Third Affiliated Hospital of Shenzhen University, Shenzhen, China
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Effect of tiger milk mushroom (Lignosus rhinocerus) supplementation on respiratory health, immunity and antioxidant status: an open-label prospective study. Sci Rep 2021; 11:11781. [PMID: 34083710 PMCID: PMC8175741 DOI: 10.1038/s41598-021-91256-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/25/2021] [Indexed: 11/21/2022] Open
Abstract
Tiger milk mushroom (TMM; Lignosus rhinocerus) have been used for a long time by indigenous communities in South East Asia regions as traditional medicine for different ailments, including respiratory disorders. The beneficial effects of TMM have been proven through in vivo and in vitro models, but these effects have yet to be validated in a clinical study. In this study, the beneficial effects of TMM supplementation were investigated in 50 voluntary participants. Participants were required to take 300 mg of TMM twice daily for three months. Level of interleukin 1β (IL-1β), interleukin 8 (IL-8), immunoglobulin A (IgA), total antioxidant capacity, malondialdehyde (MDA), 3-nitrotyrosine (3-NT), 8-hydroxydeoxyguanosine (8-OHdG), pulmonary function and respiratory symptoms were assessed during baseline and monthly follow-up visits. Results demonstrated that supplementation of TMM significantly (p < 0.05) suppressed the level of IL-1β, IL-8, MDA, as well as respiratory symptoms. In additional to that, TMM also significantly (p < 0.05) induced the level of IgA, total antioxidant capacity, as well as pulmonary function. Analyses of data indicated that gender and BMI were factors influencing the outcomes of antioxidant status. Collectively, our findings suggested that TMM supplementation effectively improves respiratory health, immunity and antioxidant status.
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Xu H, Huang L, Luo Q, Tu Q, Liu J, Yu R, Huang J, Chen T, Yin Y, Cao J. Absence of Toll-like receptor 7 protects mice against Pseudomonas aeruginosa pneumonia. Int Immunopharmacol 2021; 96:107739. [PMID: 33984723 DOI: 10.1016/j.intimp.2021.107739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 04/24/2021] [Accepted: 04/27/2021] [Indexed: 02/06/2023]
Abstract
Toll-like receptor 7 (TLR7) is a sensor of microbial ssRNA that participates in the immune response process in many diseases. We herein sought to establish the role of TLR7 in Pseudomonas aeruginosa pneumonia. Pneumonia model was created by intratracheally injecting Pseudomonas aeruginosa and the effects of TLR7 on survival, bacterial burden, lung pathology, cytokine and chemokine production, and pulmonary leukocyte recruitment were measured after Pseudomonas aeruginosa challenge. TLR7 expression was significantly elevated in WT mice after Pseudomonas aeruginosa infection. TLR7-/- mice demonstrated enhanced survival, bacterial clearance, leukocyte infiltration, and macrophages phagocytic activity, and decreased pathology and capillary leakage. Besides, improved survival and bacterial clearance were observed in WT mice treated with TLR7 antagonist IRS661. More importantly, lack of TLR7 suppressed pro-inflammatory cytokine production and induced anti-inflammatory cytokine production in mice lungs. Finally, neutralized IL-10 damaged the bacterial clearance ability of TLR7 deficient mice, leading to decreased survival. Collectively, absence of TLR7 provided protective effects during Pseudomonas aeruginosa pneumonia and suggested that TLR7 could act as a novel immune target to treat clinical cases with Pseudomonas aeruginosa pneumonia.
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Affiliation(s)
- Haofeng Xu
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Key Laboratory of Diagnostic Medicine designated by the Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Lili Huang
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Qin Luo
- Department of Clinical Molecular Medical Testing Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Qianqian Tu
- Key Laboratory of Diagnostic Medicine designated by the Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Jiayu Liu
- Key Laboratory of Diagnostic Medicine designated by the Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Renlin Yu
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jun Huang
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Te Chen
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Key Laboratory of Diagnostic Medicine designated by the Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Yibing Yin
- Key Laboratory of Diagnostic Medicine designated by the Ministry of Education, Chongqing Medical University, Chongqing 400016, China
| | - Ju Cao
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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Zuo JY, Tong YJ, Yue DM. [A review on the effect of Claudin-18 on bronchopulmonary dysplasia in preterm infants]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2021; 23:542-547. [PMID: 34020748 PMCID: PMC8140329 DOI: 10.7499/j.issn.1008-8830.2101025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Bronchopulmonary dysplasia (BPD) has the main manifestations of pulmonary edema in the early stage and characteristic alveolar obstruction and microvascular dysplasia in the late stage, which may be caused by structural and functional destruction of the lung epithelial barrier. The Claudin family is the main component of tight junction and plays an important role in regulating the permeability of paracellular ions and solutes. Claudin-18 is the only known tight junction protein solely expressed in the lung. The lack of Claudin-18 can lead to barrier dysfunction and impaired alveolar development, and the knockout of Claudin-18 can cause characteristic histopathological changes of BPD. This article elaborates on the important role of Claudin-18 in the development and progression of BPD from the aspects of lung epithelial permeability, alveolar development, and progenitor cell homeostasis, so as to provide new ideas for the pathogenesis and clinical treatment of BPD.
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Affiliation(s)
- Jing-Ye Zuo
- Department of Neonatology, Shengjing Hospital, China Medical University, Shenyang 110004, China
| | - Ya-Jie Tong
- Department of Neonatology, Shengjing Hospital, China Medical University, Shenyang 110004, China
| | - Dong-Mei Yue
- Department of Neonatology, Shengjing Hospital, China Medical University, Shenyang 110004, China
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Yu W, Ye T, Ding J, Huang Y, Peng Y, Xia Q, Cuntai Z. miR-4456/CCL3/CCR5 Pathway in the Pathogenesis of Tight Junction Impairment in Chronic Obstructive Pulmonary Disease. Front Pharmacol 2021; 12:551839. [PMID: 33953665 PMCID: PMC8089484 DOI: 10.3389/fphar.2021.551839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 02/22/2021] [Indexed: 11/19/2022] Open
Abstract
Background: Cigarette smoke exposure (CSE) is a major cause of chronic obstructive pulmonary disease (COPD). The smoke disrupts cell-cell adhesion by inducing epithelial barrier damage to the tight junction (TJ) proteins. Even though the inflammatory mechanism of chemokine (C-C motif) ligand 3 (CCL3) in COPD has gained increasing attention in the research community, however, the underlying signaling pathway, remains unknown. Objectives: To identify the relationship of CCL3 in the pathogenesis of tight junction impairment in COPD and the pathway through which CSE causes damage to TJ in COPD via CCL3, both in vivo and in vitro. Methods: We screened the inflammatory factors in the peripheral blood mononuclear cells (PBMCs) from healthy controls and patients at each GOLD 1-4 stage of chronic obstructive pulmonary disease. RT-PCR, western blot, and ELISA were used to detect the levels of CCL3, ZO-1, and occludin after Cigarette smoke exposure. Immunofluorescence was applied to examine the impairment of the TJs in 16-HBE and A549 cells. The reverse assay was used to detect the effect of a CCR5 antagonist (DAPTA) in COPD. In the CSE-induced COPD mouse model, H&E staining and lung function tests were used to evaluate the pathological and physical states in each group. Immunofluorescence was used to assess the impairment of TJs in each group. ELISA and RT-PCR were used to examine the mRNA or protein expression of CCL3 or miR-4456 in each group. Results: The in vivo and in vitro results showed that CCL3 expression was increased in COPD compared with healthy controls. CCL3 caused significant injury to TJs through its C-C chemokine receptor type 5 (CCR5), while miR-4456 could suppress the effect of CCL3 on TJs by binding to the 3′-UTR of CCL3. Conclusion: miR-4456/CCL3/CCR5 pathway may be a potential target pathway for the treatment of COPD.
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Affiliation(s)
- Weiwei Yu
- Department of Geriatric Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ting Ye
- Department of Clinical Nutrition, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jie Ding
- Urology Department of Xin Hua Hospital, Xin Hua Hospital Affliated to Shanghai Jiao Tong University, Shanghai, China
| | - Yi Huang
- Department of Geriatric Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Peng
- Department of Geriatric Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qin Xia
- Department of Geriatric Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhang Cuntai
- Department of Geriatric Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Dicarbonyl stress, protein glycation and the unfolded protein response. Glycoconj J 2021; 38:331-340. [PMID: 33644826 PMCID: PMC8116241 DOI: 10.1007/s10719-021-09980-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 01/26/2021] [Accepted: 02/10/2021] [Indexed: 12/22/2022]
Abstract
The reactive dicarbonyl metabolite, methylglyoxal (MG), is increased in obesity and diabetes and is implicated in the development of insulin resistance, type 2 diabetes mellitus and vascular complications of diabetes. Dicarbonyl stress is the metabolic state of abnormal high MG concentration. MG is an arginine-directed glycating agent and precursor of the major advanced glycation endproduct, arginine-derived hydroimidazolone MG-H1. MG-H1 is often formed on protein surfaces and an uncharged hydrophobic residue, inducing protein structural distortion and misfolding. Recent studies indicate that dicarbonyl stress in human endothelial cells and fibroblasts in vitro induced a proteomic response consistent with activation of the unfolded protein response (UPR). The response included: increased abundance of heat shock proteins and ubiquitin ligases catalysing the removal of proteins with unshielded surface hydrophobic patches and formation of polyubiquitinated chains to encapsulate misfolded proteins; and increased low grade inflammation. Activation of the UPR is implicated in insulin resistance. An effective strategy to counter increased MG is inducing increased expression of glyoxalase-1 (Glo1). An optimized inducer of Glo1 expression, trans-resveratrol and hesperetin combination, normalized increased MG concentration, corrected insulin resistance and decreased low grade inflammation in overweight and obese subjects. We propose that dicarbonyl stress, through increased formation of MG-glycated proteins, may be an important physiological stimulus of the UPR and Glo1 inducers may provide a route to effective suppression and therapy. With further investigation and validation, this may provide key new insight into physiological activators of the UPR and association with dicarbonyl stress.
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Lucas JH, Muthumalage T, Wang Q, Friedman MR, Friedman AE, Rahman I. E-Liquid Containing a Mixture of Coconut, Vanilla, and Cookie Flavors Causes Cellular Senescence and Dysregulated Repair in Pulmonary Fibroblasts: Implications on Premature Aging. Front Physiol 2020; 11:924. [PMID: 33013432 PMCID: PMC7500211 DOI: 10.3389/fphys.2020.00924] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 07/09/2020] [Indexed: 12/11/2022] Open
Abstract
Electronic cigarette (e-cig) usage has risen dramatically worldwide over the past decade. While they are touted as a safe alternative to cigarettes, recent studies indicate that high levels of nicotine and flavoring chemicals present in e-cigs may still cause adverse health effects. We hypothesized that an e-liquid containing a mixture of tobacco, coconut, vanilla, and cookie flavors would induce senescence and disrupt wound healing processes in pulmonary fibroblasts. To test this hypothesis, we exposed pulmonary fibroblasts (HFL-1) to e-liquid at varying doses and assessed cytotoxicity, inflammation, senescence, and myofibroblast differentiation. We found that e-liquid exposure caused cytotoxicity, which was accompanied by an increase in IL-8 release in the conditioned media. E-liquid exposure resulted in elevated senescence-associated beta-galactosidase (SA-β-gal) activity. Transforming growth factor-β1 (TGF-β1) induced myofibroblast differentiation was inhibited by e-liquid exposure, resulting in decreased α-smooth muscle actin and fibronectin protein levels. Together, our data suggest that an e-liquid containing a mixture of flavors induces inflammation, senescence and dysregulated wound healing responses.
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Affiliation(s)
- Joseph H Lucas
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, United States
| | - Thivanka Muthumalage
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, United States
| | - Qixin Wang
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, United States
| | - Michelle R Friedman
- Department of Chemistry & Biochemistry, The College of Brockport, The State University of New York, New York, NY, United States
| | - Alan E Friedman
- Department of Materials Design and Innovation, School of Engineering and Applied Sciences, University at Buffalo, Buffalo, NY, United States
| | - Irfan Rahman
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, United States
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30
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Lee YS, Min D, Park SY, Lee J, Bae H. Standardized herbal extract PM014 alleviates fine dust-induced lung inflammation in mice. BMC Complement Med Ther 2020; 20:270. [PMID: 32894124 PMCID: PMC7487483 DOI: 10.1186/s12906-020-03060-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 08/25/2020] [Indexed: 11/10/2022] Open
Abstract
Background Fine dust penetrates deep into the human alveoli, and the fine dust accumulated in the bronchus and lungs can directly trigger various respiratory diseases. PM014 (HL301) is the herbal extract derived from the herbal medicine Chung-Sang-Bo-Ha-Tang which is used for the treatment of lung diseases. Methods To evaluate the effect of PM014 on the lung inflammation induced by fine dust, this study investigated inflammatory responses in the lung upon pm10 exposure by examining the infiltration of inflammatory cell profiles from bronchial alveolar lavage fluid (BALF), lung histology, and production of pro-inflammatory cytokines measured by RT-PCR and ELISA. Results PM014-treated mice exhibited reduced lung tissue damage and inflammatory cell infiltration. Bronchoalveolar lavage fluid (BALF) analysis showed significant decrease in the population of total cells, macrophages, eosinophils, and neutrophils in PM014-treated mice. PM014 treatment downregulated the pro-inflammatory cytokine expressions including IL-1b, IL-8, IL-6, TNF-alpha, IL-21 and IL-17. ELISA analysis also showed reduced production of IL-1b, IL-6 and IL-17 in PM014-treated mice. Conclusion PM014 suppressed the pm10-induced inflammatory response in mice. This study shows that PM014 is a possible therapeutic agent for lung inflammation induced by fine dust.
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Affiliation(s)
- Ye-Seul Lee
- Department of Anatomy and Acupoint, College of Korean Medicine, Gachon University, Seongnam, 13120, South Korea
| | - Daeun Min
- Department of Physiology, College of Korean Medicine, Kyung Hee University, 26-6 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02453, Republic of Korea
| | - Seon-Young Park
- Department of Physiology, College of Korean Medicine, Kyung Hee University, 26-6 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02453, Republic of Korea
| | - Junyoung Lee
- Department of Physiology, College of Korean Medicine, Kyung Hee University, 26-6 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02453, Republic of Korea
| | - Hyunsu Bae
- Department of Physiology, College of Korean Medicine, Kyung Hee University, 26-6 Kyungheedae-ro, Dongdaemoon-gu, Seoul, 02453, Republic of Korea.
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Hibbitts AJ, Ramsey JM, Barlow J, MacLoughlin R, Cryan SA. In Vitro and In Vivo Assessment of PEGylated PEI for Anti-IL-8/CxCL-1 siRNA Delivery to the Lungs. NANOMATERIALS 2020; 10:nano10071248. [PMID: 32605011 PMCID: PMC7407419 DOI: 10.3390/nano10071248] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 06/19/2020] [Accepted: 06/24/2020] [Indexed: 12/16/2022]
Abstract
Inhalation offers a means of rapid, local delivery of siRNA to treat a range of autoimmune or inflammatory respiratory conditions. This work investigated the potential of a linear 10 kDa Poly(ethylene glycol) (PEG)-modified 25 kDa branched polyethyleneimine (PEI) (PEI-LPEG) to effectively deliver siRNA to airway epithelial cells. Following optimization with anti- glyceraldehyde 3-phosphate dehydrogenase (GAPDH) siRNA, PEI and PEI-LPEG anti-IL8 siRNA nanoparticles were assessed for efficacy using polarised Calu-3 human airway epithelial cells and a twin stage impinger (TSI) in vitro lung model. Studies were then advanced to an in vivo lipopolysaccharide (LPS)-stimulated rodent model of inflammation. In parallel, the suitability of the siRNA-loaded nanoparticles for nebulization using a vibrating mesh nebuliser was assessed. The siRNA nanoparticles were nebulised using an Aerogen® Pro vibrating mesh nebuliser and characterised for aerosol output, droplet size and fine particle fraction. Only PEI anti-IL8 siRNA nanoparticles were capable of significant levels of IL-8 knockdown in vitro in non-nebulised samples. However, on nebulization through a TSI, only PEI-PEG siRNA nanoparticles demonstrated significant decreases in gene and protein expression in polarised Calu-3 cells. In vivo, both anti-CXCL-1 (rat IL-8 homologue) nanoparticles demonstrated a decreased CXCL-1 gene expression in lung tissue, but this was non-significant. However, PEI anti-CXCL-1 siRNA-treated rats were found to have significantly less infiltrating macrophages in their bronchoalveolar lavage (BAL) fluid. Overall, the in vivo gene and protein inhibition findings indicated a result more reminiscent of the in vitro bolus delivery rather than the in vitro nebulization data. This work demonstrates the potential of nebulised PEI-PEG siRNA nanoparticles in modulating pulmonary inflammation and highlights the need to move towards more relevant in vitro and in vivo models for respiratory drug development.
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Affiliation(s)
- Alan J. Hibbitts
- School of Pharmacy & Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin D02 YN77, Ireland; (A.J.H.); (J.M.R.); (R.M.)
- Trinity Centre for Biomedical Engineering, Trinity College, Dublin D02 R590, Ireland
| | - Joanne M. Ramsey
- School of Pharmacy & Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin D02 YN77, Ireland; (A.J.H.); (J.M.R.); (R.M.)
| | - James Barlow
- Department of Chemistry, Royal College of Surgeons in Ireland, Dublin D02 YN77, Ireland;
| | - Ronan MacLoughlin
- School of Pharmacy & Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin D02 YN77, Ireland; (A.J.H.); (J.M.R.); (R.M.)
- School of Pharmacy and Pharmaceutical Sciences, Trinity College, Dublin D02 PN40, Ireland
- Aerogen Ltd. Galway Business Park, Galway H91 HE94, Ireland
| | - Sally-Ann Cryan
- School of Pharmacy & Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin D02 YN77, Ireland; (A.J.H.); (J.M.R.); (R.M.)
- Trinity Centre for Biomedical Engineering, Trinity College, Dublin D02 R590, Ireland
- Correspondence: ; Tel.: +353-14022741
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Kelly FL, Weinberg KE, Nagler AE, Nixon AB, Star MD, Todd JL, Brass DM, Palmer SM. EGFR-Dependent IL8 Production by Airway Epithelial Cells After Exposure to the Food Flavoring Chemical 2,3-Butanedione. Toxicol Sci 2020; 169:534-542. [PMID: 30851105 DOI: 10.1093/toxsci/kfz066] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
2,3-Butanedione (DA), a component of artificial butter flavoring, is associated with the development of occupational bronchiolitis obliterans (BO), a disease of progressive airway fibrosis resulting in lung function decline. Neutrophilic airway inflammation is a consistent feature of BO across a range of clinical contexts and may contribute to disease pathogenesis. Therefore, we sought to determine the importance of the neutrophil chemotactic cytokine interleukin-8 (IL-8) in DA-induced lung disease using in vivo and in vitro model systems. First, we demonstrated that levels of Cinc-1, the rat homolog of IL-8, are increased in the lung fluid and tissue compartment in a rat model of DA-induced BO. Next, we demonstrated that DA increased IL-8 production by the pulmonary epithelial cell line NCI-H292 and by primary human airway epithelial cells grown under physiologically relevant conditions at an air-liquid interface. We then tested the hypothesis that DA-induced epithelial IL-8 protein occurs in an epidermal growth factor receptor (EGFR)-dependent manner. In these in vitro experiments we demonstrated that epithelial IL-8 protein is blocked by the EGFR tyrosine kinase inhibitor AG1478 and by inhibition of tumor necrosis factor-alpha converting enzyme using the small molecule inhibitor, TAPI-1. Finally, we demonstrated that DA-induced IL-8 is dependent upon ERK1/2 and Mitogen activated protein kinase kinase activation downstream of EGFR signaling using the small molecule inhibitors AG1478 and PD98059. Together these novel in vivo and in vitro observations support that EGFR-dependent IL-8 production occurs in DA-induced BO. Further studies are warranted to determine the importance of IL-8 in BO pathogenesis.
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Affiliation(s)
- Francine L Kelly
- Division of Pulmonary and Critical Care medicine, Duke University Medical Center, Durham, NC 27710
| | - Kaitlyn E Weinberg
- Division of Pulmonary and Critical Care medicine, Duke University Medical Center, Durham, NC 27710
| | - Andrew E Nagler
- Division of Pulmonary and Critical Care medicine, Duke University Medical Center, Durham, NC 27710
| | - Andrew B Nixon
- Division of Oncology, Duke University Medical Center, Durham, NC 27710
| | - Mark D Star
- Division of Oncology, Duke University Medical Center, Durham, NC 27710
| | - Jamie L Todd
- Division of Pulmonary and Critical Care medicine, Duke University Medical Center, Durham, NC 27710
| | - David M Brass
- Division of Pulmonary and Critical Care medicine, Duke University Medical Center, Durham, NC 27710
| | - Scott M Palmer
- Division of Pulmonary and Critical Care medicine, Duke University Medical Center, Durham, NC 27710
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dos Santos JDMB, Bachi ALL, Luna Junior LA, Foster R, Sierra APR, Benetti M, Araújo JR, Ghorayeb N, Kiss MAPD, Vieira RP, Bullens DMA, Vaisberg M. The Relationship of IL-8 and IL-10 Myokines and Performance in Male Marathon Runners Presenting Exercise-Induced Bronchoconstriction. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17082622. [PMID: 32290385 PMCID: PMC7215610 DOI: 10.3390/ijerph17082622] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 03/24/2020] [Accepted: 03/26/2020] [Indexed: 12/25/2022]
Abstract
At present, it is unclear which exercise-induced factors, such as myokines, could diminish the negative impact of the reduction in pulmonary function imposed by the exercise in question. In this study, we aim to evaluate the prevalence of exercise-induced bronchoconstriction (EIB) and also to investigate the effect of myokines in the performance of marathon runners presenting EIB or not. Thirty-eight male recreational marathon runners (age 38.8 [33-44], height 175.7 [172.0-180.3]; weight 74.7 [69.3-81.6]) participated in this study, and through spirometry tests, a prevalence of 23.6% of EIB was found, which is in agreement with the literature. The volunteers who tested positive to EIB (EIB+) presented lower maximum aerobic capacity compared to those who tested negative (EIB-) (EIB+ 44.02 [39.56-47.02] and EIB- 47.62 [44.11-51.18] p = 0.03). The comparison of plasma levels of IL-1β (EIB+ p = 0.296, EIB- p = 0.176, EIB+ vs. EIB- baseline p = 0.190 immediately after p = 0.106), IL-4 (undetectable), IL-6 (EIB+ p = 0.003, EIB- p ≤ 0.001, EIB+ vs. EIB- baseline p = 0.301 immediately after p = 0.614), IL-8 (EIB+ p = 0.003, EIB- p ≤ 0.001, EIB+ vs. EIB- baseline p = 0.110 immediately after p = 0.453), IL-10 (EIB+ p = 0.003, EIB- p ≤ 0.001, EIB+ vs. EIB- baseline p = 0.424 immediately after p = 0.876) and TNF-α (EIB+ p = 0.003, EIB- p ≤ 0.001, EIB+ vs. EIB- baseline p = 0.141 immediately after p = 0.898) were similar in both groups 24 h before and immediately after the marathon. However, negative correlations were found between the marathon finishing time and the levels of IL-8 (r = -0.81, p = 0.022), and IL-10 (r = -0.97, p ≤ 0.001) immediately after completing the marathon. In conclusion, for the first time, it is shown that the myokines IL-8 and IL-10 are related to improvement of the performance of marathon runners presenting EIB.
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Affiliation(s)
- Juliana de Melo Batista dos Santos
- Department of Otorhinolaryngology, ENT Lab, Federal University of São Paulo (UNIFESP), São Paulo 04025-002, Brazil; (A.L.L.B.); (L.A.L.J.); (R.F.); (M.V.)
- Correspondence: ; Tel.: +55-11-5576-4848
| | - André Luis Lacerda Bachi
- Department of Otorhinolaryngology, ENT Lab, Federal University of São Paulo (UNIFESP), São Paulo 04025-002, Brazil; (A.L.L.B.); (L.A.L.J.); (R.F.); (M.V.)
- Post-Graduation Program in Health Sciences, Santo Amaro University (UNISA), São Paulo 04829-300, Brazil
| | - Luiz Antonio Luna Junior
- Department of Otorhinolaryngology, ENT Lab, Federal University of São Paulo (UNIFESP), São Paulo 04025-002, Brazil; (A.L.L.B.); (L.A.L.J.); (R.F.); (M.V.)
| | - Roberta Foster
- Department of Otorhinolaryngology, ENT Lab, Federal University of São Paulo (UNIFESP), São Paulo 04025-002, Brazil; (A.L.L.B.); (L.A.L.J.); (R.F.); (M.V.)
- Method Faculty of Sao Paulo (FAMESP), São Paulo 04046-200, Brazil
| | - Ana Paula Renno Sierra
- School of Physical Education and Sport, University of São Paulo (USP), São Paulo 05508-030, Brazil; (A.P.R.S.); (M.B.); (M.A.P.D.K.)
| | - Marino Benetti
- School of Physical Education and Sport, University of São Paulo (USP), São Paulo 05508-030, Brazil; (A.P.R.S.); (M.B.); (M.A.P.D.K.)
| | - José Roberto Araújo
- Department of Morphology and Genetics, Federal University of Sao Paulo (UNIFESP), São Paulo 04023-900, Brazil;
| | - Nabil Ghorayeb
- Sports Cardiology Department, Dante Pazzanese Institute of Cardiology, São Paulo 04012-909, Brazil;
| | | | - Rodolfo P. Vieira
- Post-Graduation Program in Sciences of Human Movement and Rehabilitation, Federal University of São Paulo (UNIFESP), Santos 11060-001, Brazil;
- Post-Graduation Program in Bioengineering and Biomedical Engineering, Universidade Brasil, São Paulo 08230-030, Brazil
- School of Medicine, Anhembi Morumbi University, São José dos Campos 04705-000, Brazil
- Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), São José dos Campos 12245-520, Brazil
| | - Dominique M. A. Bullens
- Clinical Division of Pediatrics, UZ Leuven, 3000 Leuven, Belgium;
- Allergy and Clinical Immunology Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium
| | - Mauro Vaisberg
- Department of Otorhinolaryngology, ENT Lab, Federal University of São Paulo (UNIFESP), São Paulo 04025-002, Brazil; (A.L.L.B.); (L.A.L.J.); (R.F.); (M.V.)
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Sugita K, Kabashima K. Tight junctions in the development of asthma, chronic rhinosinusitis, atopic dermatitis, eosinophilic esophagitis, and inflammatory bowel diseases. J Leukoc Biol 2020; 107:749-762. [PMID: 32108379 DOI: 10.1002/jlb.5mr0120-230r] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 01/12/2020] [Accepted: 01/26/2020] [Indexed: 02/06/2023] Open
Abstract
This review focuses on recent developments related to asthma, chronic rhinosinusitis, atopic dermatitis (AD), eosinophilic esophagitis, and inflammatory bowel diseases (IBD), with a particular focus on tight junctions (TJs) and their role in the pathogenetic mechanisms of these diseases. Lung, skin, and intestinal surfaces are lined by epithelial cells that interact with environmental factors and immune cells. Therefore, together with the cellular immune system, the epithelium performs a pivotal role as the first line physical barrier against external antigens. Paracellular space is almost exclusively sealed by TJs and is maintained by complex protein-protein interactions. Thus, TJ dysfunction increases paracellular permeability, resulting in enhanced flux across TJs. Epithelial TJ dysfunction also causes immune cell activation and contributes to the pathogenesis of chronic lung, skin, and intestinal inflammation. Characterization of TJ protein alteration is one of the key factors for enhancing our understanding of allergic diseases as well as IBDs. Furthermore, TJ-based epithelial disturbance can promote immune cell behaviors, such as those in dendritic cells, Th2 cells, Th17 cells, and innate lymphoid cells (ILCs), thereby offering new insights into TJ-based targets. The purpose of this review is to illustrate how TJ dysfunction can lead to the disruption of the immune homeostasis in barrier tissues and subsequent inflammation. This review also highlights the various TJ barrier dysfunctions across different organ sites, which would help to develop future drugs to target allergic diseases and IBD.
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Affiliation(s)
- Kazunari Sugita
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Tottori University Faculty of Medicine, Yonago, Japan
| | - Kenji Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Xian M, Ma S, Wang K, Lou H, Wang Y, Zhang L, Wang C, Akdis CA. Particulate Matter 2.5 Causes Deficiency in Barrier Integrity in Human Nasal Epithelial Cells. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2020; 12:56-71. [PMID: 31743964 PMCID: PMC6875480 DOI: 10.4168/aair.2020.12.1.56] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 07/26/2019] [Accepted: 07/29/2019] [Indexed: 12/16/2022]
Abstract
Purpose The effect of air pollution-related particulate matter (PM) on epithelial barrier function and tight junction (TJ) expression in human nasal mucosa has not been studied to date. This study therefore aimed to assess the direct impact of PM with an aerodynamic diameter less than 2.5 μm (PM2.5) on the barrier function and TJ molecular expression of human nasal epithelial cells. Methods Air-liquid interface cultures were established with epithelial cells derived from noninflammatory nasal mucosal tissue collected from patients undergoing paranasal sinus surgery. Confluent cultures were exposed to 50 or 100 µg/mL PM2.5 for up to 72 hours, and assessed for 1) epithelial barrier integrity as measured by transepithelial resistance (TER) and permeability of fluorescein isothiocyanate (FITC) 4 kDa; 2) expression of TJs using real-time quantitative polymerase chain reaction and immunofluorescence staining, and 3) proinflammatory cytokines by luminometric bead array or enzyme-linked immunosorbent assay. Results Compared to control medium, 50 and/or 100 µg/mL PM2.5-treatment 1) significantly decreased TER and increased FITC permeability, which could not be restored by budesonide pretreatment; 2) significantly decreased the expression of claudin-1 messenger RNA, claudin-1, occludin and ZO-1 protein; and 3) significantly increased production of the cytokines interleukin-8, TIMP metallopeptidase inhibitor 1 and thymic stromal lymphopoietin. Conclusions Exposure to PM2.5 may lead to loss of barrier function in human nasal epithelium through decreased expression of TJ proteins and increased release of proinflammatory cytokines. These results suggest an important mechanism of susceptibility to rhinitis and rhinosinusitis in highly PM2.5-polluted areas.
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Affiliation(s)
- Mu Xian
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Siyuan Ma
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Kuiji Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Hongfei Lou
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Yang Wang
- Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Luo Zhang
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China.
| | - Chengshuo Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing, China.
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland.,Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland
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Song MA, Freudenheim JL, Brasky TM, Mathe EA, McElroy JP, Nickerson QA, Reisinger SA, Smiraglia DJ, Weng DY, Ying KL, Wewers MD, Shields PG. Biomarkers of Exposure and Effect in the Lungs of Smokers, Nonsmokers, and Electronic Cigarette Users. Cancer Epidemiol Biomarkers Prev 2019; 29:443-451. [PMID: 31848205 DOI: 10.1158/1055-9965.epi-19-1245] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/14/2019] [Accepted: 12/02/2019] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Nicotine-containing electronic cigarette (e-cig) use has become widespread. However, understanding the biological impact of e-cigs compared with smoking on the lung is needed. There are major gaps in knowledge for chronic effects and for an etiology to recent acute lung toxicity leading to death among vapers. METHODS We conducted bronchoscopies in a cross-sectional study of 73 subjects (42 never-smokers, 15 e-cig users, and 16 smokers). Using bronchoalveolar lavage and brushings, we examined lung inflammation by cell counts, cytokines, genome-wide gene expression, and DNA methylation. RESULTS There were statistically significant differences among never-smokers, e-cig users, and smokers for inflammatory cell counts and cytokines (FDR q < 0.1). The e-cig users had values intermediate between smokers and never-smokers, with levels for most of the biomarkers more similar to never-smokers. For differential gene expression and DNA methylation, e-cig users also more like never-smokers; many of these genes corresponded to smoking-related pathways, including those for xenobiotic metabolism, aryl hydrocarbon receptor signaling, and oxidative stress. Differentially methylated genes were correlated with changes in gene expression, providing evidence for biological effects of the methylation associations. CONCLUSIONS These data indicate that e-cigs are associated with less toxicity than cigarettes for smoking-related pathways. What is unknown may be unique effects for e-cigs not measured herein, and a comparison of smokers completely switching to e-cigs compared with former smokers. Clinical trials for smokers switching to e-cigs who undergo serial bronchoscopy and larger cross-sectional studies of former smokers with and without e-cig use, and for e-cigs who relapse back to smoking, are needed. IMPACT These data can be used for product regulation and for informing tobacco users considering or using e-cigs. What is unknown may be unique effects for e-cigs not measured herein, and clinical trials with serial bronchoscopy underway can demonstrate a direct relationship for changes in lung biomarkers.
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Affiliation(s)
- Min-Ae Song
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, Columbus, Ohio.,Division of Environmental Health Science, College of Public Health, The Ohio State University, Columbus, Ohio
| | - Jo L Freudenheim
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, New York
| | - Theodore M Brasky
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, Columbus, Ohio
| | - Ewy A Mathe
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, Columbus, Ohio
| | - Joseph P McElroy
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, Columbus, Ohio
| | - Quentin A Nickerson
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, Columbus, Ohio
| | - Sarah A Reisinger
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, Columbus, Ohio
| | - Dominic J Smiraglia
- Department of Cancer Genetics and Genomics, Roswell Park Cancer Institute, Buffalo, New York
| | - Daniel Y Weng
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, Columbus, Ohio
| | - Kevin L Ying
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, Columbus, Ohio.,Molecular, Cellular and Developmental Biology Program, The Ohio State University, Columbus, Ohio
| | - Mark D Wewers
- Pulmonary and Critical Care Medicine, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Peter G Shields
- Comprehensive Cancer Center, The Ohio State University and James Cancer Hospital, Columbus, Ohio.
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37
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Affiliation(s)
- J Freyer Most
- Jane and Leonard Korman Respiratory Institute, Philadelphia, PA
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38
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Altmann DM. T-cell immunology of the lung: maintaining the balance between host defence and immune pathology. Immunology 2019; 156:1-2. [PMID: 30522167 DOI: 10.1111/imm.13029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Respiratory immunology poses the dual questions of how to grapple with lung infection as one of the greatest unmet global health needs of our time, while also dealing with the growing challenge posed by chronic diseases of excessive or inappropriate lung inflammation and immunity, such as chronic obstructive lung disease and asthma. These separate branches of pulmonary research are linked by the clear observation that, in a tissue as fragile as the lung, protection from microbial attack may come at the cost of chronic inflammatory damage. A number of recent studies have considered specific aspects of this double-edged sword, including the diversity of responses to fungal exposure, sources and consequences of interleukin-17 immunity, and the role of tertiary lymphoid follicles in the lung.
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Worgall S. Stranger in a Strange Land: IL-8 in the Mouse Lung? Am J Respir Cell Mol Biol 2019; 59:525-526. [PMID: 30095972 DOI: 10.1165/rcmb.2018-0206ed] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Stefan Worgall
- 1 Department of Pediatrics Weill Cornell Medicine New York, New York
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40
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Watanabe Y, Tajiki-Nishino R, Tajima H, Fukuyama T. Role of estrogen receptors α and β in the development of allergic airway inflammation in mice: A possible involvement of interleukin 33 and eosinophils. Toxicology 2018; 411:93-100. [PMID: 30445053 DOI: 10.1016/j.tox.2018.11.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/31/2018] [Accepted: 11/12/2018] [Indexed: 01/21/2023]
Abstract
Recent studies have shown that the estrogen receptor α (ERα), but not ERβ, is involved in the proinflammatory and propruritic responses in cutaneous allergy. In addition, results from our recent study showed that while oral administration of the rather ERβ-selective agonist bisphenol A exacerbated the respiratory allergic inflammation, the potential inflammatory reaction in the skin was decreased after administration of bisphenol A. This study aimed to elucidate whether ERα and ERβ are involved in the progression of an allergic airway inflammation. We performed an in vivo experiment using an animal model of allergic airway inflammation using male BALB/c mice to confirm an increase in the proinflammatory response induced by propylpyrazoletriol (PPT), an ERα agonist, and diarylpropionitrile (DPN), an ERβ agonist. Oral administration of PPT or DPN showed a significant increase in the inflammation of the lung and infiltration of eosinophils. While the expression of Th2 cytokines such as interleukin 4 (IL-4) and IL-13 was not affected by exposure to PPT or DPN, administration of these agonists significantly increased the expression of IL-33. The mechanism underlying the development of such allergic inflammatory responses was determined by an in vitro study using the human bronchial epithelial cell line (BEAS-2B) and the human eosinophilic leukemia cell line (EoL-1). Activated cells were exposed to PPT or DPN for 24 h, and the cytokine levels were measured. The IL-33 levels in BEAS-2B cells increased significantly after exposure to PPT or DPN. In addition, pretreatment with PPT or DPN increased the expression of IL-8 in activated EoL-1 cells. Our findings indicate that ERα and ERβ are involved in the proinflammatory response in respiratory allergy, and their effects may be mediated by an increase in the expression of IL-33 and infiltration of eosinophils.
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Affiliation(s)
- Yuko Watanabe
- The Institute of Environmental Toxicology, 4321, Uchimoriya-machi, Joso-shi, Ibaraki, 303-0043, Japan.
| | - Risako Tajiki-Nishino
- The Institute of Environmental Toxicology, 4321, Uchimoriya-machi, Joso-shi, Ibaraki, 303-0043, Japan.
| | - Hitoshi Tajima
- The Institute of Environmental Toxicology, 4321, Uchimoriya-machi, Joso-shi, Ibaraki, 303-0043, Japan.
| | - Tomoki Fukuyama
- The Institute of Environmental Toxicology, 4321, Uchimoriya-machi, Joso-shi, Ibaraki, 303-0043, Japan; Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, 252-5201, Japan.
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41
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Avendaño-Ortiz J, Llanos-González E, Toledano V, Del Campo R, Cubillos-Zapata C, Lozano-Rodríguez R, Ismail A, Prados C, Gómez-Campelo P, Aguirre LA, García-Río F, López-Collazo E. Pseudomonas aeruginosa colonization causes PD-L1 overexpression on monocytes, impairing the adaptive immune response in patients with cystic fibrosis. J Cyst Fibros 2018; 18:630-635. [PMID: 30442491 DOI: 10.1016/j.jcf.2018.11.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 10/29/2018] [Accepted: 11/04/2018] [Indexed: 01/05/2023]
Abstract
BACKGROUND Cystic fibrosis (CF) is an endotoxin tolerance (ET)-related disease. Given that increased PD-L1 has been reported in ET, its expression and physiological effects on cystic fibrosis monocytes should be studied. METHODS We analyzed the phenotype and ex vivo response of immune system cells in 32 patients with CF, 19 of them colonized by Pseudomonas aeruginosa. An in vitro model was developed of Pseudomonas aeruginosa colonization using purified lipopolysaccharides (LPS) from one of the most prevalent strains in patients with CF (a CF-adapted Pseudomonas aeruginosa ST395 clone). Changes in the immune response, including cytokine production and T-lymphocyte proliferation, as well as expression of PD-L1, were evaluated. RESULTS PD-L1 was overexpressed in the monocytes of patients with CF compared with healthy volunteers, and levels of this immune checkpoint were associated with Pseudomonas aeruginosa colonization. In addition, patients with Pseudomonas aeruginosa colonization showed a patent ET status, including poor inflammatory response, reduced HLA-DR expression and T-lymphocyte proliferation impairment. PD-L1/PD-1 blocking assays reverted the impaired adaptive response. Ultimately, monocytes from healthy volunteers cultured in the presence of the clinically relevant strain of Pseudomonas aeruginosa or serum collected from patients with CF colonized by Pseudomonas aeruginosa reproduced the previous observed features. CONCLUSIONS Pseudomonas aeruginosa colonization in patients with CF was associated with PD-L1 overexpression and impaired T cell response, and LPS from this pathogen induced the observed phenotype. Our findings open new avenues for the use of anti-PD-1/PD-L1 immunotherapy in patients with CF who are colonized by Pseudomonas aeruginosa.
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Affiliation(s)
- José Avendaño-Ortiz
- Innate Immunity Group, IdiPAZ, La Paz University Hospital, Madrid, Spain; Tumor Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain; Center for Biomedical Research Network, CIBEres, Spain
| | - Emilio Llanos-González
- Innate Immunity Group, IdiPAZ, La Paz University Hospital, Madrid, Spain; Tumor Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Víctor Toledano
- Innate Immunity Group, IdiPAZ, La Paz University Hospital, Madrid, Spain; Tumor Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain; Center for Biomedical Research Network, CIBEres, Spain
| | - Rosa Del Campo
- Department of Microbiology, University Hospital Ramón y Cajal and IRYCIS, Madrid, Spain
| | - Carolina Cubillos-Zapata
- Center for Biomedical Research Network, CIBEres, Spain; Respiratory Diseases Group, Respiratory Service, La Paz University Hospital, IdiPAZ, Madrid, Spain
| | - Roberto Lozano-Rodríguez
- Innate Immunity Group, IdiPAZ, La Paz University Hospital, Madrid, Spain; Tumor Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Ahmad Ismail
- Innate Immunity Group, IdiPAZ, La Paz University Hospital, Madrid, Spain; Tumor Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Concepción Prados
- Respiratory Diseases Group, Respiratory Service, La Paz University Hospital, IdiPAZ, Madrid, Spain
| | - Paloma Gómez-Campelo
- Innate Immunity Group, IdiPAZ, La Paz University Hospital, Madrid, Spain; Tumor Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Luis A Aguirre
- Innate Immunity Group, IdiPAZ, La Paz University Hospital, Madrid, Spain; Tumor Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain
| | - Francisco García-Río
- Center for Biomedical Research Network, CIBEres, Spain; Respiratory Diseases Group, Respiratory Service, La Paz University Hospital, IdiPAZ, Madrid, Spain
| | - Eduardo López-Collazo
- Innate Immunity Group, IdiPAZ, La Paz University Hospital, Madrid, Spain; Tumor Immunology Lab, IdiPAZ, La Paz University Hospital, Madrid, Spain; Center for Biomedical Research Network, CIBEres, Spain.
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Michalik M, Wójcik-Pszczoła K, Paw M, Wnuk D, Koczurkiewicz P, Sanak M, Pękala E, Madeja Z. Fibroblast-to-myofibroblast transition in bronchial asthma. Cell Mol Life Sci 2018; 75:3943-3961. [PMID: 30101406 PMCID: PMC6182337 DOI: 10.1007/s00018-018-2899-4] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 07/26/2018] [Accepted: 08/06/2018] [Indexed: 12/11/2022]
Abstract
Bronchial asthma is a chronic inflammatory disease in which bronchial wall remodelling plays a significant role. This phenomenon is related to enhanced proliferation of airway smooth muscle cells, elevated extracellular matrix protein secretion and an increased number of myofibroblasts. Phenotypic fibroblast-to-myofibroblast transition represents one of the primary mechanisms by which myofibroblasts arise in fibrotic lung tissue. Fibroblast-to-myofibroblast transition requires a combination of several types of factors, the most important of which are divided into humoural and mechanical factors, as well as certain extracellular matrix proteins. Despite intensive research on the nature of this process, its underlying mechanisms during bronchial airway wall remodelling in asthma are not yet fully clarified. This review focuses on what is known about the nature of fibroblast-to-myofibroblast transition in asthma. We aim to consider possible mechanisms and conditions that may play an important role in fibroblast-to-myofibroblast transition but have not yet been discussed in this context. Recent studies have shown that some inherent and previously undescribed features of fibroblasts can also play a significant role in fibroblast-to-myofibroblast transition. Differences observed between asthmatic and non-asthmatic bronchial fibroblasts (e.g., response to transforming growth factor β, cell shape, elasticity, and protein expression profile) may have a crucial influence on this phenomenon. An accurate understanding and recognition of all factors affecting fibroblast-to-myofibroblast transition might provide an opportunity to discover efficient methods of counteracting this phenomenon.
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Affiliation(s)
- Marta Michalik
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland.
| | - Katarzyna Wójcik-Pszczoła
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland.
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland.
| | - Milena Paw
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland
| | - Dawid Wnuk
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland
| | - Paulina Koczurkiewicz
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Marek Sanak
- Division of Molecular Biology and Clinical Genetics, Department of Medicine, Jagiellonian University Medical College, Skawińska 8, 31-066, Kraków, Poland
| | - Elżbieta Pękala
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Zbigniew Madeja
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland
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