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Calazans APCT, Milani TMS, Prata AS, Clerici MTPS, Nicoli JR, Martins FS, Borges MC. A Functional Bread Fermented with Saccharomyces cerevisiae UFMG A-905 Prevents Allergic Asthma in Mice. Curr Dev Nutr 2024; 8:102142. [PMID: 38655128 PMCID: PMC11035053 DOI: 10.1016/j.cdnut.2024.102142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/13/2024] [Accepted: 03/18/2024] [Indexed: 04/26/2024] Open
Abstract
Background The administration of probiotics has been shown to be beneficial in asthma. The administration of Saccharomyces cerevisiae UFMG A-905 prevented asthma development. Traditionally, probiotics are administered using dairy-based matrices, but other vehicles (e.g., fruit juices, biscuits, candies, and breads) can be used. Objectives This study aimed to assess the effect of bread fermented with S. cerevisiae UFMG A-905 in asthma prevention. Methods Three breads were produced: fermented with commercial yeast, fermented with S. cerevisiae UFMG A-905, and fermented with S. cerevisiae UFMG A-905 with the addition of alginate microcapsules containing live S. cerevisiae UFMG A-905. Characterization of the microbial composition of the breads was performed. Male Balb/c mice were sensitized and challenged with ovalbumin. Breads were administered 10 d before the first sensitization and during sensitization and challenge protocol. Yeast fecal count, in vivo airway hyperresponsiveness, and airway and lung inflammation were assessed. Results In UFMG A-905 bread, there was an increase in yeast number and a decrease in total and lactic acid bacteria. Animals that received S. cerevisiae UFMG A-905 fermented bread with microcapsules had a significant increase in yeast recovery from feces. S. cerevisiae UFMG A-905-fermented breads partially reduced airway inflammation, decreasing eosinophils and IL5 and IL13 concentrations. When adding microcapsules, the bread also diminished airway hyperresponsiveness and increased IL17A concentrations. Conclusions S. cerevisiae UFMG A-905 was able to generate long-fermentation breads. Microcapsules were a safe and viable way to inoculate the live yeast into food. The administration of breads fermented with S. cerevisiae UFMG A-905 prevented asthma-like characteristics, being more pronounced when the breads contained microcapsules with live yeast.
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Affiliation(s)
| | | | - Ana Silvia Prata
- Department of Food Engineering and Technology, School of Food Engineering, University of Campinas, Campinas, Brazil
| | | | - Jacques Robert Nicoli
- Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Flaviano Santos Martins
- Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Marcos Carvalho Borges
- Department of Internal Medicine, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
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Chen S, Yu L, Deng Y, Liu Y, Wang L, Li D, Yang K, Liu S, Tao A, Chen R. Early IL-17A Prevention Rather Than Late IL-17A Neutralization Attenuates Toluene Diisocyanate-Induced Mixed Granulocytic Asthma. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2022; 14:528-548. [PMID: 36174994 PMCID: PMC9523423 DOI: 10.4168/aair.2022.14.5.528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 06/10/2022] [Accepted: 07/05/2022] [Indexed: 06/16/2023]
Abstract
PURPOSE Interleukin (IL)-17A plays a critical role in the pathogenesis of allergic airway inflammation. Yet, the exact roles of IL-17A in asthma are still controversial. Thus, the aim of this study was to dissect the roles of IL-17A in toluene diisocyanate (TDI)-induced mixed granulocytic asthma and to assess the effects of neutralizing antibody in different effector phases on TDI-induced asthma. METHODS IL-17A functions in allergic airway inflammation were evaluated using mice deficient in IL-17A (Il17a-/-) or IL-17A monoclonal antibody (IL-17A mab, intraperitoneally, 50 μg per mouse, 100 μg per mouse). Moreover, the effects of exogenous recombinant IL (rIL)-17A in vivo (murine rIL-17A, intranasally, 1 μg per mouse) and in vitro (human rIL-17A, 100 ng/mL) were investigated. RESULTS TDI-induced mixed granulocytic airway inflammation was IL-17A-dependent because airway hyperreactivity, neutrophil and eosinophil infiltration, airway smooth muscle thickness, epithelium injury, dysfunctional T helper (Th) 2 and Th17 responses, granulocytic chemokine production and mucus overproduction were more markedly reduced in the Il17a-/- mice or by IL-17A neutralization during the sensitization phase of wild-type (WT) mice. By contrast, IL-17A neutralization during the antigen-challenge phase aggravated TDI-induced eosinophils recruitment, with markedly elevated Th2 response. In line with this, instillation of rIL-17 during antigen sensitization exacerbated airway inflammation by promoting neutrophils aggregation, while rIL-17A during the antigen-challenge phase protected the mice from TDI-induced airway eosinophilia. Moreover, rIL-17A exerted distinct effects on eosinophil- or neutrophil-related signatures in vitro. CONCLUSIONS Our data demonstrated that IL-17A was required for the initiation of TDI-induced asthma, but functioned as a negative regulator of established allergic inflammation, suggesting that early abrogation of IL-17A signaling, but not late IL-17A neutralization, may prevent the progression of TDI-induced asthma and could be used as a therapeutic strategy for severe asthmatics in clinical settings.
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Affiliation(s)
- Shuyu Chen
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, Shenzhen Key Laboratory of Respiratory Diseases, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), First Affiliated Hospital of Southern University of Science and Technology (Shenzhen People's Hospital), Shenzhen, China
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Li Yu
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, Shenzhen Key Laboratory of Respiratory Diseases, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), First Affiliated Hospital of Southern University of Science and Technology (Shenzhen People's Hospital), Shenzhen, China
| | - Yao Deng
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, Shenzhen Key Laboratory of Respiratory Diseases, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), First Affiliated Hospital of Southern University of Science and Technology (Shenzhen People's Hospital), Shenzhen, China
| | - Yuanyuan Liu
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, Shenzhen Key Laboratory of Respiratory Diseases, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), First Affiliated Hospital of Southern University of Science and Technology (Shenzhen People's Hospital), Shenzhen, China
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Lingwei Wang
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, Shenzhen Key Laboratory of Respiratory Diseases, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), First Affiliated Hospital of Southern University of Science and Technology (Shenzhen People's Hospital), Shenzhen, China
| | - Difei Li
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, Shenzhen Key Laboratory of Respiratory Diseases, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), First Affiliated Hospital of Southern University of Science and Technology (Shenzhen People's Hospital), Shenzhen, China
| | - Kai Yang
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, Shenzhen Key Laboratory of Respiratory Diseases, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), First Affiliated Hospital of Southern University of Science and Technology (Shenzhen People's Hospital), Shenzhen, China
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Shengming Liu
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Ailin Tao
- The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China.
| | - Rongchang Chen
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, Shenzhen Key Laboratory of Respiratory Diseases, The Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), First Affiliated Hospital of Southern University of Science and Technology (Shenzhen People's Hospital), Shenzhen, China.
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Tao Z, Zhu H, Zhang J, Huang Z, Xiang Z, Hong T. Recent advances of eosinophils and its correlated diseases. Front Public Health 2022; 10:954721. [PMID: 35958837 PMCID: PMC9357997 DOI: 10.3389/fpubh.2022.954721] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 07/04/2022] [Indexed: 11/22/2022] Open
Abstract
Eosinophils are differentiated by bone marrow multipotent progenitor cells and are further released into peripheral blood after maturation. Human eosinophils can exhibit unique multi-leaf nuclear morphology, which are filled with cytoplasmic granules that contain cytotoxicity and immune regulatory proteins. In recent years, many studies focused on the origin, differentiation and development process of eosinophils. It has been discovered that the eosinophils have the regulatory functions of innate and adaptive immunity, and can also function in several diseases, including asthma, chronic obstructive pulmonary diseases, acute respiratory distress syndrome, malignant tumors and so on. Hence, the role and effects of eosinophils in various diseases are emphasized. In this review, we comprehensively summarized the development and differentiation process of eosinophils, the research progress of their related cytokines, diseases and current clinical treatment options, and discussed the potential drug target, aiming to provide a theoretical and practical basis for the clinical prevention and treatment of eosinophil-related diseases, especially respiratory diseases. To conclude, the guiding significance of future disease treatment is proposed based on the recent updated understandings into the cell functions of eosinophils.
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Affiliation(s)
- Zhang Tao
- Department of Pulmonary Diseases, Yancheng Traditional Chinese Medicine Hospital, Yancheng, China
| | - Hua Zhu
- Department of Gastroenterology, Yancheng Third People's Hospital, Yancheng, China
- School of Medicine, Affiliated Yancheng Hospital, Southeast University, Yancheng, China
| | - Jiateng Zhang
- Zhejiang University School of Medicine, Hangzhou, China
- Chu Kochen Honors College of Zhejiang University, Hangzhou, China
| | - Zhiming Huang
- Zhejiang University School of Medicine, Hangzhou, China
- Chu Kochen Honors College of Zhejiang University, Hangzhou, China
| | - Ze Xiang
- Zhejiang University School of Medicine, Hangzhou, China
- Chu Kochen Honors College of Zhejiang University, Hangzhou, China
- Ze Xiang
| | - Tu Hong
- Zhejiang University School of Medicine, Hangzhou, China
- Chu Kochen Honors College of Zhejiang University, Hangzhou, China
- *Correspondence: Tu Hong
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ATG5 promotes eosinopoiesis but inhibits eosinophil effector functions. Blood 2021; 137:2958-2969. [PMID: 33598715 DOI: 10.1182/blood.2020010208] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/03/2021] [Indexed: 12/14/2022] Open
Abstract
Eosinophils are white blood cells that contribute to the regulation of immunity and are involved in the pathogenesis of numerous inflammatory diseases. In contrast to other cells of the immune system, no information is available regarding the role of autophagy in eosinophil differentiation and functions. To study the autophagic pathway in eosinophils, we generated conditional knockout mice in which Atg5 is deleted within the eosinophil lineage only (designated Atg5eoΔ mice). Eosinophilia was provoked by crossbreeding Atg5eoΔ mice with Il5 (IL-5) overexpressing transgenic mice (designated Atg5eoΔIl5tg mice). Deletion of Atg5 in eosinophils resulted in a dramatic reduction in the number of mature eosinophils in blood and an increase of immature eosinophils in the bone marrow. Atg5-knockout eosinophil precursors exhibited reduced proliferation under both in vitro and in vivo conditions but no increased cell death. Moreover, reduced differentiation of eosinophils in the absence of Atg5 was also observed in mouse and human models of chronic eosinophilic leukemia. Atg5-knockout blood eosinophils exhibited augmented levels of degranulation and bacterial killing in vitro. Moreover, in an experimental in vivo model, we observed that Atg5eoΔ mice achieve better clearance of the local and systemic bacterial infection with Citrobacter rodentium. Evidence for increased degranulation of ATG5low-expressing human eosinophils was also obtained in both tissues and blood. Taken together, mouse and human eosinophil hematopoiesis and effector functions are regulated by ATG5, which controls the amplitude of overall antibacterial eosinophil immune responses.
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Chen Y, Mao ZD, Shi YJ, Qian Y, Liu ZG, Yin XW, Zhang Q. Comprehensive analysis of miRNA-mRNA-lncRNA networks in severe asthma. Epigenomics 2018; 11:115-131. [PMID: 30426778 DOI: 10.2217/epi-2018-0132] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
AIM This study aimed to explore the molecular mechanism of severe asthma. MATERIALS & METHODS The shared and divergent differentially expressed mRNAs (DEmRNAs), miRNAs (DEmiRNAs) and lncRNAs (DElncRNAs) in asthma and severe asthma were identified by RNA-sequencing. Severe asthma-specific and shared DEmiRNA-DEmRNA-DElncRNA interaction networks were performed. RESULTS Compared with normal control, 1328 DEmRNAs, 608 DElncRNAs and 63 DEmiRNAs were identified in severe asthma. Compared with asthma, 95 DEmRNAs, 143 DElncRNAs and 96 DEmiRNAs were identified in severe asthma. MiR-133a-3p-EFHD2/CNN2-AC144831.1 interactions and miR-3613-3p-CD44/BCL11B-LINC00158/CTA-217C2.1/AC010976.2/RP11-641A6.2 interactions were speculated to involve with the development of severe asthma. The results of GSE69683 validation were generally consistent with our RNA-sequencing results. CONCLUSION This study provides clues for understanding the mechanism of severe asthma.
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Affiliation(s)
- Yi Chen
- Department of Respiratory and Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 29 Xinlong Road, Changzhou 213003, PR China
| | - Zheng-Dao Mao
- Department of Respiratory and Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 29 Xinlong Road, Changzhou 213003, PR China
| | - Yu-Jia Shi
- Department of Respiratory and Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 29 Xinlong Road, Changzhou 213003, PR China
| | - Yan Qian
- Department of Respiratory and Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 29 Xinlong Road, Changzhou 213003, PR China
| | - Zhi-Guang Liu
- Department of Respiratory and Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 29 Xinlong Road, Changzhou 213003, PR China
| | - Xiao-Wei Yin
- Department of Respiratory and Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 29 Xinlong Road, Changzhou 213003, PR China
| | - Qian Zhang
- Department of Respiratory and Critical Care Medicine, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, 29 Xinlong Road, Changzhou 213003, PR China
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Shen ZJ, Hu J, Kashi V, Bochkov YA, Gern JE, Malter JS. TLR-7 Stress Signaling in Differentiating and Mature Eosinophils Is Mediated by the Prolyl Isomerase Pin1. THE JOURNAL OF IMMUNOLOGY 2018; 201:3503-3513. [PMID: 30397031 DOI: 10.4049/jimmunol.1800881] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 10/01/2018] [Indexed: 12/30/2022]
Abstract
The response of eosinophils (Eos) to respiratory virus has emerged as an important link between pulmonary infection and allergic asthmatic exacerbations. Eos activate innate immune responses through TLR signaling. In this study, using mouse and human Eos and mice lacking the prolyl isomerase Pin1 selectively in Eos, we show that Pin1 is indispensable for eosinophilopoiesis in the bone marrow (BM) and mature cell function in the presence of TLR7 activation. Unbiased in vivo analysis of mouse models of allergic airway inflammation revealed that TLR7 activation in knockout mice resulted in systemic loss of Eos, reduced IFN production, and an inability to clear respiratory viruses. Consistent with this finding, BM mouse Eos progenitors lacking Pin1 showed markedly reduced cell proliferation and survival after TLR7 activation. Mechanistically, unlike wild-type cells, Pin1 null mouse Eos were defective in the activation of the endoplasmic reticulum stress-induced unfolded protein response. We observed significant reductions in the expression of unfolded protein response components and target genes, aberrant TLR7 cleavage and trafficking, and reduced granule protein production in knockout Eos. Our data strongly suggest that Pin1 is required for BM Eos generation and function during concurrent allergen challenge and viral infection.
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Affiliation(s)
- Zhong-Jian Shen
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390;
| | - Jie Hu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Venkatesh Kashi
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Yury A Bochkov
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI; and
| | - James E Gern
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI; and.,Department of Medicine, University of Wisconsin-Madison, Madison, WI 53792
| | - James S Malter
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390;
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Tian BP, Li F, Li R, Hu X, Lai TW, Lu J, Zhao Y, Du Y, Liang Z, Zhu C, Shao W, Li W, Chen ZH, Sun X, Chen X, Ying S, Ling D, Shen H. Nanoformulated ABT-199 to effectively target Bcl-2 at mitochondrial membrane alleviates airway inflammation by inducing apoptosis. Biomaterials 2018; 192:429-439. [PMID: 30500724 DOI: 10.1016/j.biomaterials.2018.06.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 06/13/2018] [Accepted: 06/14/2018] [Indexed: 02/07/2023]
Abstract
Elimination of airway inflammatory cells is essential for asthma control. As Bcl-2 protein is highly expressed on the mitochondrial outer membrane in inflammatory cells, we chose a Bcl-2 inhibitor, ABT-199, which can inhibit airway inflammation and airway hyperresponsiveness by inducing inflammatory cell apoptosis. Herein, we synthesized a pH-sensitive nanoformulated Bcl-2 inhibitor (Nf-ABT-199) that could specifically deliver ABT-199 to the mitochondria of bronchial inflammatory cells. The proof-of-concept study of an inflammatory cell mitochondria-targeted therapy using Nf-ABT-199 was validated in a mouse model of allergic asthma. Nf-ABT-199 was proven to significantly alleviate airway inflammation by effectively inducing eosinophil apoptosis and inhibiting both inflammatory cell infiltration and mucus hypersecretion. In addition, the nanocarrier or Nf-ABT-199 showed no obvious influence on cell viability, airway epithelial barrier and liver function, implying excellent biocompatibility and with non-toxic effect. The nanoformulated Bcl-2 inhibitor Nf-ABT-199 accumulates in the mitochondria of inflammatory cells and efficiently alleviates allergic asthma.
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Affiliation(s)
- Bao-Ping Tian
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China; Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Fangyuan Li
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Ruiqing Li
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Xi Hu
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Tian-Wen Lai
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China
| | - Jingxiong Lu
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Yun Zhao
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China
| | - Yang Du
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Zeyu Liang
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Chen Zhu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China
| | - Wei Shao
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Wen Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China
| | - Zhi-Hua Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China
| | - Xiaolian Sun
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Songmin Ying
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China; Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.
| | - Daishun Ling
- Zhejiang Province Key Laboratory of Anti-cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China; Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - Huahao Shen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, Zhejiang 310058, China; Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, Zhejiang 310009, China; State Key Laboratory of Respiratory Diseases, Guangzhou, Guangdong 510120, China.
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8
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Zhu C, Xia L, Li F, Zhou L, Weng Q, Li Z, Wu Y, Mao Y, Zhang C, Wu Y, Li M, Ying S, Chen Z, Shen H, Li W. mTOR complexes differentially orchestrates eosinophil development in allergy. Sci Rep 2018; 8:6883. [PMID: 29720621 PMCID: PMC5932055 DOI: 10.1038/s41598-018-25358-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 03/07/2018] [Indexed: 12/29/2022] Open
Abstract
Eosinophil infiltration is considered a hallmark in allergic airway inflammation, and the blockade of eosinophil differentiation may be an effective approach for treating eosinophil-related disorders. Mammalian target of rapamycin (mTOR) is a vital modulator in cell growth control and related diseases, and we have recently demonstrated that rapamycin can suppress eosinophil differentiation in allergic airway inflammation. Considering its critical role in haematopoiesis, we further investigated the role of mTOR in eosinophil differentiation in the context of asthmatic pathogenesis. Intriguingly, the inhibition of mTOR, either by genetic deletion or by another pharmacological inhibitor torin-1, accelerated the eosinophil development in the presence of IL-5. However, this was not observed to have any considerable effect on eosinophil apoptosis. The effect of mTOR in eosinophil differentiation was mediated by Erk signalling. Moreover, myeloid specific knockout of mTOR or Rheb further augmented allergic airway inflammation in mice after allergen exposure. Ablation of mTOR in myeloid cells also resulted in an increased number of eosinophil lineage-committed progenitors (Eops) in allergic mice. Collectively, our data uncovered the differential effects of mTOR in the regulation of eosinophil development, likely due to the distinct functions of mTOR complex 1 or 2, which thus exerts a pivotal implication in eosinophil-associated diseases.
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Affiliation(s)
- Chen Zhu
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Lixia Xia
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Fei Li
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Lingren Zhou
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Qingyu Weng
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Zhouyang Li
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Yinfang Wu
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Yuanyuan Mao
- Department of Respiratory Medicine, Ningbo No. 2 Hospital, Ningbo, Zhejiang, 315010, China
| | - Chao Zhang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Yanping Wu
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Miao Li
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Songmin Ying
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China.,Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310058, China
| | - Zhihua Chen
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Huahao Shen
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Wen Li
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China.
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9
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Babayan SA, Liu W, Hamilton G, Kilbride E, Rynkiewicz EC, Clerc M, Pedersen AB. The Immune and Non-Immune Pathways That Drive Chronic Gastrointestinal Helminth Burdens in the Wild. Front Immunol 2018; 9:56. [PMID: 29459856 PMCID: PMC5807686 DOI: 10.3389/fimmu.2018.00056] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 01/09/2018] [Indexed: 01/09/2023] Open
Abstract
Parasitic helminths are extremely resilient in their ability to maintain chronic infection burdens despite (or maybe because of) their hosts’ immune response. Explaining how parasites maintain these lifelong infections, identifying the protective immune mechanisms that regulate helminth infection burdens, and designing prophylactics and therapeutics that combat helminth infection, while preserving host health requires a far better understanding of how the immune system functions in natural habitats than we have at present. It is, therefore, necessary to complement mechanistic laboratory-based studies with studies on wild populations and their natural parasite communities. Unfortunately, the relative paucity of immunological tools for non-model species has held these types of studies back. Thankfully, recent progress in high-throughput ‘omics platforms provide powerful and increasingly practical means for immunologists to move beyond traditional lab-based model organisms. Yet, assigning both metabolic and immune function to genes, transcripts, and proteins in novel species and assessing how they interact with other physiological and environmental factors requires identifying quantitative relationships between their expression and infection. Here, we used supervised machine learning to identify gene networks robustly associated with burdens of the gastrointestinal nematode Heligmosomoides polygyrus in its natural host, the wild wood mice Apodemus sylvaticus. Across 34 mice spanning two wild populations and across two different seasons, we found 17,639 transcripts that clustered in 131 weighted gene networks. These clusters robustly predicted H. polygyrus burden and included well-known effector and regulatory immune genes, but also revealed a number of genes associated with the maintenance of tissue homeostasis and hematopoiesis that have so far received little attention. We then tested the effect of experimentally reducing helminth burdens through drug treatment on those putatively protective immune factors. Despite the near elimination of H. polygyrus worms, the treatment had surprisingly little effect on gene expression. Taken together, these results suggest that hosts balance tissue homeostasis and protective immunity, resulting in relatively stable immune and, consequently, parasitological profiles. In the future, applying our approach to larger numbers of samples from additional populations will help further increase our ability to detect the immune pathways that determine chronic gastrointestinal helminth burdens in the wild.
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Affiliation(s)
- Simon A Babayan
- Institute of Biodiversity, Animal Health & Comparative Medicine, University of Glasgow, Glasgow, United Kingdom
| | - Wei Liu
- Institute of Biodiversity, Animal Health & Comparative Medicine, University of Glasgow, Glasgow, United Kingdom
| | | | - Elizabeth Kilbride
- Institute of Biodiversity, Animal Health & Comparative Medicine, University of Glasgow, Glasgow, United Kingdom
| | - Evelyn C Rynkiewicz
- Institute of Evolutionary Biology and Centre for Immunity, Infection and Evolution, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Melanie Clerc
- Institute of Evolutionary Biology and Centre for Immunity, Infection and Evolution, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Amy B Pedersen
- Institute of Evolutionary Biology and Centre for Immunity, Infection and Evolution, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
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10
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Neutrophilic Inflammation in the Immune Responses of Chronic Obstructive Pulmonary Disease: Lessons from Animal Models. J Immunol Res 2017; 2017:7915975. [PMID: 28536707 PMCID: PMC5426078 DOI: 10.1155/2017/7915975] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 04/05/2017] [Indexed: 12/20/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a major cause of mortality worldwide, which is characterized by chronic bronchitis, destruction of small airways, and enlargement/disorganization of alveoli. It is generally accepted that the neutrophilic airway inflammation observed in the lungs of COPD patients is intrinsically linked to the tissue destruction and alveolar airspace enlargement, leading to disease progression. Animal models play an important role in studying the underlying mechanisms of COPD as they address questions involving integrated whole body responses. This review aims to summarize the current animal models of COPD, focusing on their advantages and disadvantages on immune responses and neutrophilic inflammation. Also, we propose a potential new animal model of COPD, which may mimic the most characteristics of human COPD pathogenesis, including persistent moderate-to-high levels of neutrophilic inflammation.
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11
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Fonseca VMB, Milani TMS, Prado R, Bonato VLD, Ramos SG, Martins FS, Vianna EO, Borges MDC. Oral administration of Saccharomyces cerevisiae UFMG A-905 prevents allergic asthma in mice. Respirology 2017; 22:905-912. [PMID: 28166610 DOI: 10.1111/resp.12990] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 10/30/2016] [Accepted: 11/28/2016] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND OBJECTIVE The prevalence of asthma has increased in communities that adopt a Western lifestyle and become more urbanized. Probiotics may be effective in the prevention of allergic diseases, such as asthma. The aim of the current study was to examine the effects of Saccharomyces cerevisiae UFMG A-905 in an allergic model of asthma. METHODS Balb/c mice were sensitized twice with ovalbumin (OVA) intraperitoneally, 1 week apart and challenged with OVA intranasally for 3 days. Mice were daily treated with S. cerevisiae UFMG A-905 via gavaging needle 10 days before OVA sensitization and during challenges. After challenge, in vivo lung function was measured, and bronchoalveolar lavage (BAL) and lung inflammation were assessed. RESULTS Oral treatment with S. cerevisiae UFMG A-905 significantly decreased airway hyperresponsiveness, total cell number and the influx of eosinophils to the airway, inflammatory cell in the lung, mucus expression in epithelial cells and the levels of IL-4, IL-5 and IL-13. Additionally, S. cerevisiae UFMG A-905 restored the levels of IL-10 and interferon (IFN)-gamma, and increased the levels of IL-17A. CONCLUSION Oral administration of S. cerevisiae UFMG A-905 prevented the development of major asthma-like characteristics in a mouse model.
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Affiliation(s)
- Vanessa M B Fonseca
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Thamires M S Milani
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Rafael Prado
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Vania L D Bonato
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Simone G Ramos
- Department of Pathology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Flaviano S Martins
- Department of Microbiology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Elcio O Vianna
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Marcos de C Borges
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
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12
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Tian BP, Xia LX, Bao ZQ, Zhang H, Xu ZW, Mao YY, Cao C, Che LQ, Liu JK, Li W, Chen ZH, Ying S, Shen HH. Bcl-2 inhibitors reduce steroid-insensitive airway inflammation. J Allergy Clin Immunol 2016; 140:418-430. [PMID: 28043871 DOI: 10.1016/j.jaci.2016.11.027] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 09/12/2016] [Accepted: 11/21/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND Asthmatic inflammation is dominated by accumulation of either eosinophils, neutrophils, or both in the airways. Disposal of these inflammatory cells is the key to disease control. Eosinophilic airway inflammation is responsive to corticosteroid treatment, whereas neutrophilic inflammation is resistant and increases the burden of global health care. Corticosteroid-resistant neutrophilic asthma remains mechanistically poorly understood and requires novel effective therapeutic strategies. OBJECTIVE We sought to explore the underlying mechanisms of airway inflammation persistence, as well as corticosteroid resistance, and to investigate a new strategy of effective treatment against corticosteroid-insensitive neutrophilic asthma. METHODS Mouse models of either eosinophil-dominated or neutrophil-dominated airway inflammation were used in this study to test corticosteroid sensitivity in vivo and in vitro. We also used vav-Bcl-2 transgenic mice to confirm the importance of granulocytes apoptosis in the clearance of airway inflammation. Finally, the Bcl-2 inhibitors ABT-737 or ABT-199 were tested for their therapeutic effects against eosinophilic or neutrophilic airway inflammation and airway hyperresponsiveness. RESULTS Overexpression of Bcl-2 protein was found to be responsible for persistence of granulocytes in bronchoalveolar lavage fluid after allergic challenge. This was important because allergen-induced airway inflammation aggravated and persisted in vav-Bcl-2 transgenic mice, in which nucleated hematopoietic cells were overexpressed with Bcl-2 and resistant to apoptosis. The Bcl-2 inhibitors ABT-737 or ABT-199 play efficient roles in alleviation of either eosinophilic or corticosteroid-resistant neutrophilic airway inflammation by inducing apoptosis of immune cells, such as eosinophils, neutrophils, TH2 cells, TH17 cells, and dendritic cells. Moreover, these inhibitors were found to be more efficient than steroids to induce granulocyte apoptosis ex vivo from patients with severe asthma. CONCLUSION Apoptosis of inflammatory cells is essential for clearance of allergen-induced airway inflammation. The Bcl-2 inhibitors ABT-737 or ABT-199 might be promising drugs for the treatment of airway inflammation, especially for corticosteroid-insensitive neutrophilic airway inflammation.
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Affiliation(s)
- Bao-Ping Tian
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China
| | - Li-Xia Xia
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China
| | - Zheng-Qiang Bao
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China; Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou, China
| | - Hao Zhang
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China
| | - Zhi-Wei Xu
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China; Department of Critical Care Medicine, Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, China
| | - Yuan-Yuan Mao
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China
| | - Chao Cao
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China
| | - Luan-Qing Che
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China
| | - Jin-Kai Liu
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China
| | - Wen Li
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China
| | - Zhi-Hua Chen
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China
| | - Songmin Ying
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China; Department of Pharmacology, Zhejiang University School of Medicine, Hangzhou, China.
| | - Hua-Hao Shen
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Site of National Clinical Research Center for Respiratory Disease, Hangzhou, China; State Key Laboratory of Respiratory Diseases, Guangzhou, China.
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13
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Chiba Y, Tanoue G, Suto R, Suto W, Hanazaki M, Katayama H, Sakai H. Interleukin-17A directly acts on bronchial smooth muscle cells and augments the contractility. Pharmacol Rep 2016; 69:377-385. [PMID: 31994114 DOI: 10.1016/j.pharep.2016.12.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 12/07/2016] [Accepted: 12/09/2016] [Indexed: 01/01/2023]
Abstract
BACKGROUND Although interleukin-17 (IL-17) contributes to the induction of airway hyperresponsiveness in asthma, its effect on bronchial smooth muscle (BSM) remains largely unknown. Evidence support an involvement of RhoA/Rho-kinase in BSM contraction, and the pathway has now been proposed as a novel target for asthma therapy. To clarify the role of IL-17 on the development of BSM hyperresponsiveness, effects of IL-17A on BSM contractility and RhoA expression were investigated. METHODS Male BALB/c mice and cultured human BSM cells (hBSMCs) were used. RESULTS In the murine model of allergic asthma, BSM hyperresponsiveness with an IL-17A up-regulation in bronchoalveolar lavage fluids were observed. RT-PCR analyses revealed the expression of receptors for IL-17A in mouse BSMs and hBSMCs. In the hBSMCs, incubation with IL-17A caused an up-regulation of RhoA protein. Western blot analyses also revealed phosphorylations of JNKs/ERKs and a down-regulation of IκB-α in the IL-17A-treated hBSMCs, indicating that IL-17A could act on BSM cells directly. However, IL-17A did not activate STAT6, which is also known as a signaling molecule that causes an up-regulation of RhoA when activated by IL-13. On the other hand, IL-17A caused a down-regulation of miR-133a-3p, a microRNA that negatively regulates RhoA translation. In the naive mice, in vivo IL-17A treatment to the airways by intranasal instillation induced a BSM hyperresponsiveness with RhoA protein up-regulation. CONCLUSIONS These findings indicate that IL-17 directly acts on BSM cells and up-regulates RhoA protein probably via a down-regulation of miR-133a-3p, resulting in an induction of the BSM hyperresponsiveness.
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Affiliation(s)
- Yoshihiko Chiba
- Department of Biology, School of Pharmacy, Hoshi University, Tokyo, Japan.
| | - Gen Tanoue
- Department of Biology, School of Pharmacy, Hoshi University, Tokyo, Japan
| | - Rena Suto
- Department of Biology, School of Pharmacy, Hoshi University, Tokyo, Japan
| | - Wataru Suto
- Department of Biology, School of Pharmacy, Hoshi University, Tokyo, Japan
| | - Motohiko Hanazaki
- Department of Anesthesiology and Intensive Care Medicine, Kawasaki Medical School, Kurashiki, Japan
| | - Hiroshi Katayama
- Department of Anesthesiology and Intensive Care Medicine, Kawasaki Medical School, Kurashiki, Japan
| | - Hiroyasu Sakai
- Department of Analytical Pathophysiology, School of Pharmacy, Hoshi University, Tokyo, Japan
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14
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Guo S, Wu LX, Jones CX, Chen L, Hao CL, He L, Zhang JH. Allergic airway inflammation disrupts interleukin-17 mediated host defense against streptococcus pneumoniae infection. Int Immunopharmacol 2016; 31:32-8. [DOI: 10.1016/j.intimp.2015.12.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 11/16/2015] [Accepted: 12/07/2015] [Indexed: 01/28/2023]
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15
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Che L, Jin Y, Zhang C, Lai T, Zhou H, Xia L, Tian B, Zhao Y, Liu J, Wu Y, Wu Y, Du J, Li W, Ying S, Chen Z, Shen H. Ozone-induced IL-17A and neutrophilic airway inflammation is orchestrated by the caspase-1-IL-1 cascade. Sci Rep 2016; 6:18680. [PMID: 26739627 PMCID: PMC4703985 DOI: 10.1038/srep18680] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 11/23/2015] [Indexed: 01/22/2023] Open
Abstract
Ozone is a common environmental air pollutant leading to respiratory illness. The mechanisms regulating ozone-induced airway inflammation remain poorly understood. We hypothesize that ozone-triggered inflammasome activation and interleukin (IL)-1 production regulate neutrophilic airway inflammation through IL-17A. Pulmonary neutrophilic inflammation was induced by extended (72 h) low-dose (0.7 ppm) exposure to ozone. IL-1 receptor 1 (Il1r1)−/−, Il17a−/− mice and the caspase-1 inhibitor acetyl-YVAD-chloromethylketone (Ac-YVAD-cmk) were used for in vivo studies. Cellular inflammation and protein levels in bronchial alveolar lavage fluid (BALF), cytokines, and IL-17A-producing γδT-cells, as well as mitochondrial reactive oxygen species (ROS), mitochondrial DNA (mtDNA) release, and inflammasome activation in lung macrophages were analyzed. Ozone-induced neutrophilic airway inflammation, accompanied an increased production of IL-1β, IL-18, IL-17A, Granulocyte-colony stimulating factor (G-CSF), Interferon-γ inducible protein 10 (IP-10) and BALF protein in the lung. Ozone-induced IL-17A production was predominantly in γδT-cells, and Il17a-knockout mice exhibited reduced airway inflammation. Lung macrophages from ozone-exposed mice exhibited higher levels of mitochondrial ROS, enhanced cytosolic mtDNA, increased caspase-1 activation, and higher production of IL-1β. Il1r1-knockout mice or treatment with Ac-YVAD-cmk decreased the IL-17A production and subsequent airway inflammation. Taken together, we demonstrate that ozone-induced IL-17A and neutrophilic airway inflammation is orchestrated by the caspase-1-IL-1 cascade.
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Affiliation(s)
- Luanqing Che
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Yan Jin
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China.,Department of Respiratory Diseases, Taizhou Municipal Hospital, Taizhou, Zhejiang 318000, China
| | - Chao Zhang
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Tianwen Lai
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Hongbin Zhou
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Lixia Xia
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Baoping Tian
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Yun Zhao
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Juan Liu
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Yinfang Wu
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Yanping Wu
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Jie Du
- Beijing Anzhen Hospital, Capital Medical University, Key Laboratory of Remodeling-Related Cardiovascular Diseases, The Ministry of Education, Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing 100029, China
| | - Wen Li
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Songmin Ying
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Zhihua Chen
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Huahao Shen
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China.,State Key Laboratory of Respiratory Diseases, Guangzhou, Guangdong 510120, China
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16
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Ogawa R, Suzuki Y, Kagawa S, Masaki K, Fukunaga K, Yoshimura A, Fujishima S, Terashima T, Betsuyaku T, Asano K. Distinct effects of endogenous interleukin-23 on eosinophilic airway inflammation in response to different antigens. Allergol Int 2015; 64 Suppl:S24-9. [PMID: 26344076 DOI: 10.1016/j.alit.2015.04.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 04/11/2015] [Accepted: 04/13/2015] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The role of interleukin (IL)-23 in asthma pathophysiology is still controversial. We examined its role in allergic airway inflammation in response to two distinct antigens using IL-23-deficient mice. METHODS Allergic airway inflammation was evaluated in wild-type and IL-23p19(-/-) mice. Mice were sensitized to ovalbumin (OVA) or house dust mite (HDM) by intraperitoneal injection of antigen and their airways were then exposed to the same antigen. Levels of antigen-specific immunoglobulins in serum as well as cytokines in bronchoalveolar or peritoneal lavage fluid and lung tissue were determined by enzyme-linked immunosorbent assay and/or quantitative polymerase chain reaction. RESULTS Deficiency of IL-23p19 decreased eosinophils and Th2 cytokines in bronchoalveolar lavage fluid (BALF) of OVA-treated mice, while it increased BALF eosinophils of HDM-treated mice. Peritoneal injection of OVA with alum, but not of HDM, induced local synthesis of IL-6, IL-10, and IL-23. Systemic production of antigen-specific IgG1 was partially dependent on IL-23. In contrast, airway exposure to HDM, but not to OVA, induced IL-23p19 mRNA expression in the lungs. In IL-23p19-deficient mice, HDM-exposed lungs did not exhibit the induction of IL-17A, which negatively regulates eosinophilic inflammation. CONCLUSIONS Different antigens induced IL-23 at different part of the body in our similar asthma models. Endogenous IL-23 production at the site of antigen sensitization facilitates type-2 immune responses, whereas IL-23 production and subsequent IL-17A synthesis in the airways suppresses allergic inflammation.
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Sun R, Xu F, Wang C, Dong E. NSFC spurs significant basic research progress of respiratory medicine in China. CLINICAL RESPIRATORY JOURNAL 2015; 11:271-284. [PMID: 26176299 PMCID: PMC7159156 DOI: 10.1111/crj.12351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 07/10/2015] [Accepted: 07/13/2015] [Indexed: 12/24/2022]
Abstract
Over the years, research in respiratory medicine has progressed rapidly in China. This commentary narrates the role of the National Natural Science Foundation of China (NSFC) in supporting the basic research of respiratory medicine, summarizes the major progress of respiratory medicine in China, and addresses the main future research directions sponsored by the NSFC.
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Affiliation(s)
- Ruijuan Sun
- Department of Health Sciences, National Natural Science Foundation of China, Beijing, China
| | - Feng Xu
- Department of Health Sciences, National Natural Science Foundation of China, Beijing, China.,Department of Infectious Diseases, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chen Wang
- Department of Respiratory and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Erdan Dong
- Department of Health Sciences, National Natural Science Foundation of China, Beijing, China
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18
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Hua W, Liu H, Xia LX, Tian BP, Huang HQ, Chen ZY, Ju ZY, Li W, Chen ZH, Shen HH. Rapamycin inhibition of eosinophil differentiation attenuates allergic airway inflammation in mice. Respirology 2015; 20:1055-65. [PMID: 26053964 DOI: 10.1111/resp.12554] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 02/22/2015] [Accepted: 03/21/2015] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND OBJECTIVE The mammalian target of rapamycin (mTOR) signalling pathway regulates immune responses, and promotes cell growth and differentiation. Inhibition of mTOR with rapamycin modulates allergic asthma, while the underlying molecular mechanisms remain elusive. Here, we demonstrate that rapamycin, effectively inhibits eosinophil differentiation, contributing to its overall protective role in allergic airway inflammation. METHODS Rapamycin was administered in a mouse model of ovalbumin-induced allergic airway inflammation, and the eosinophil differentiation was analysed in vivo and in vitro. RESULTS Rapamycin significantly attenuated allergic airway inflammation and markedly decreased the amount of eosinophils in local airways, peripheral blood and bone marrow, independently of levels of interleukin-5 (IL-5). In vitro colony forming unit assay and liquid culture demonstrated that rapamycin directly inhibited IL-5-induced eosinophil differentiation. In addition, rapamycin reduced the production of IL-6 and IL-13 by eosinophils. Rapamycin was also capable of reducing the eosinophil levels in IL-5 transgenic NJ.1638 mice, again regardless of the constitutive high levels of IL-5. Interestingly, rapamycin inhibition of eosinophil differentiation in turn resulted in an accumulation of eosinophil lineage-committed progenitors in bone marrow. CONCLUSIONS Altogether these results clearly demonstrate a direct inhibitory role of rapamycin in eosinophil differentiation and function, and reemphasize the importance of rapamycin and possibly, mTOR, in allergic airway disease.
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Affiliation(s)
- Wen Hua
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hui Liu
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Li-Xia Xia
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Bao-Ping Tian
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hua-Qiong Huang
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Zhi-Yang Chen
- Institute of Aging Research, Hangzhou Normal University College of Medicine, Hangzhou, Zhejiang, China
| | - Zhen-Yu Ju
- Institute of Aging Research, Hangzhou Normal University College of Medicine, Hangzhou, Zhejiang, China
| | - Wen Li
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Zhi-Hua Chen
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hua-Hao Shen
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,State Key Laboratory of Respiratory Diseases, Guangzhou, Guangdong, China
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