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Lin ZL, Xu X, Yang JJ, Lu LQ, Huang H, Hua XZ, Lu LD. Efficacy of budesonide/formoterol inhalation powder in treating viral pneumonia in children. World J Clin Cases 2024; 12:4469-4475. [PMID: 39070822 PMCID: PMC11235498 DOI: 10.12998/wjcc.v12.i21.4469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/09/2024] [Accepted: 05/21/2024] [Indexed: 06/30/2024] Open
Abstract
BACKGROUND Respiratory viruses are increasingly detected in children with community-acquired pneumonia. Further strategies to limit antibiotic use in children with viral pneumonia are warranted. AIM To explore clinical efficacy of budesonide/formoterol inhalation powder for viral pneumonia in children and its impact on cellular immunity and inflammatory factor production. METHODS A total of 60 children with viral pneumonia were recruited: 30 receiving budesonide/formoterol inhalation powder and 30 conventional symptomatic treatment. Outcome measures included peripheral blood levels of inflammatory cytokines, CD4+, CD8+, Th1, Th2, Th17 and Treg, clinical efficacy, and incidence of adverse reactions. RESULTS Compared with the control group, the observation group showed a significant reduction in interleukin-6 and high-sensitivity C-reactive protein levels after treatment. Compared with the control group, the observation group showed a significant increase in CD4+/CD8+ and Th1/Th2 levels, and a decrease in Th17/Treg levels after treatment. The total effective rates in the observation group and the control group were 93.75% and 85.00%, respectively, which was a significant difference (P = 0.003). CONCLUSION Budesonide/formoterol inhalation powder significantly improved therapeutic efficacy for viral pneumonia in children. The mechanism of action may be related to downregulation of the inflammatory response and improved cellular immune function.
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Affiliation(s)
- Zi-Liang Lin
- Department of Pediatrics, Cangnan Hospital Affiliated to Wenzhou Medical University, Wenzhou 325800, Zhejiang Province, China
| | - Xu Xu
- Department of Pediatrics, Cangnan Hospital Affiliated to Wenzhou Medical University, Wenzhou 325800, Zhejiang Province, China
| | - Jiao-Jiao Yang
- Department of Pediatrics, Cangnan Hospital Affiliated to Wenzhou Medical University, Wenzhou 325800, Zhejiang Province, China
| | - Li-Qiang Lu
- Department of Pediatrics, Cangnan Hospital Affiliated to Wenzhou Medical University, Wenzhou 325800, Zhejiang Province, China
| | - Heng Huang
- Department of Pediatrics, Cangnan Hospital Affiliated to Wenzhou Medical University, Wenzhou 325800, Zhejiang Province, China
| | - Xiao-Zhen Hua
- Department of Pediatrics, Cangnan Hospital Affiliated to Wenzhou Medical University, Wenzhou 325800, Zhejiang Province, China
| | - Li-Dang Lu
- Department of Pediatrics, Cangnan Hospital Affiliated to Wenzhou Medical University, Wenzhou 325800, Zhejiang Province, China
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2
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Wu J, Wang P, Xie X, Yang X, Tang S, Zhao J, Liu T, Wang J, Zhang J, Xia T, Feng X. Gasdermin D silencing alleviates airway inflammation and remodeling in an ovalbumin-induced asthmatic mouse model. Cell Death Dis 2024; 15:400. [PMID: 38849380 PMCID: PMC11161474 DOI: 10.1038/s41419-024-06777-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 05/22/2024] [Accepted: 05/24/2024] [Indexed: 06/09/2024]
Abstract
Emerging evidence demonstrates that pyroptosis has been implicated in the pathogenesis of asthma. Gasdermin D (GSDMD) is the pyroptosis executioner. The mechanism of GSDMD in asthma remains unclear. The aim of this study was to elucidate the potential role of GSDMD in asthmatic airway inflammation and remodeling. Immunofluorescence staining was conducted on airway epithelial tissues obtained from both asthma patients and healthy controls (HCs) to evaluate the expression level of N-GSDMD. ELISA was used to measure concentrations of cytokines (IL-1β, IL-18, IL-17A, and IL-10) in serum samples collected from asthma patients and healthy individuals. We demonstrated that N-GSDMD, IL-18, and IL-1β were significantly increased in samples with mild asthma compared with those from the controls. Then, wild type and Gsdmd-knockout (Gsdmd-/-) mice were used to establish asthma model. We performed histopathological staining, ELISA, and flow cytometry to explore the function of GSDMD in allergic airway inflammation and tissue remodeling in vivo. We observed that the expression of N-GSDMD, IL-18, and IL-1β was enhanced in OVA-induced asthma mouse model. Gsdmd knockout resulted in attenuated IL-18, and IL-1β production in both bronchoalveolar lavage fluid (BALF) and lung tissue in asthmatic mice. In addition, Gsdmd-/- mice exhibit a significant reduction in airway inflammation and remodeling, which might be associated with reduced Th17 inflammatory response and M2 polarization of macrophages. Further, we found that GSDMD knockout may improve asthmatic airway inflammation and remodeling through regulating macrophage adhesion, migration, and macrophage M2 polarization by targeting Notch signaling pathway. These findings demonstrate that GSDMD deficiency profoundly alleviates allergic inflammation and tissue remodeling. Therefore, GSDMD may serve as a potential therapeutic target against asthma.
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Affiliation(s)
- Jinxiang Wu
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Shandong University, National Health Commission Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, China
| | - Pin Wang
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, National Health Commission Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, China
| | - Xinyu Xie
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, National Health Commission Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, China
| | - Xiaoqi Yang
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, National Health Commission Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, China
| | - Shuangmei Tang
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, National Health Commission Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, China
| | - Jiping Zhao
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Shandong University, National Health Commission Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, China
| | - Tian Liu
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Shandong University, National Health Commission Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, China
| | - Junfei Wang
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Shandong University, National Health Commission Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, China
| | - Jintao Zhang
- Department of Respiratory, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tongliang Xia
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, National Health Commission Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, China
| | - Xin Feng
- Department of Otorhinolaryngology, Qilu Hospital of Shandong University, National Health Commission Key Laboratory of Otorhinolaryngology, Shandong University, Jinan, China.
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Liu J, Huang Y, Liu N, Qiu H, Zhang X, Liu X, He M, Chen M, Huang S. The imbalance of pulmonary Th17/Treg cells in BALB/c suckling mice infected with respiratory syncytial virus-mediated intestinal immune damage and gut microbiota changes. Microbiol Spectr 2024; 12:e0328323. [PMID: 38727214 PMCID: PMC11237571 DOI: 10.1128/spectrum.03283-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 04/02/2024] [Indexed: 06/06/2024] Open
Abstract
The immune response induced by respiratory syncytial virus (RSV) infection is closely related to changes in the composition and function of gastrointestinal microorganisms. However, the specific mechanism remains unknown and the pulmonary-intestinal axis deserves further study. In this study, the mRNA levels of ROR-γt and Foxp3 in the lung and intestine increased first and then decreased. IL-17 and IL-22 reached the maximum on the third day after infection in the lung, and on the second day after infection in the small intestine and colon, respectively. RegⅢγ in intestinal tissue reached the maximum on the third day after RSV infection. Moreover, the genus enriched in the RSV group was Aggregatibacter, and Proteus was reduced. RSV infection not only causes Th17/Treg cell imbalance in the lungs of mice but also leads to the release of excessive IL-22 from the lungs through blood circulation which binds to IL-22 receptors on the intestinal surface, inducing RegⅢγ overexpression, impaired intestinal Th17/Treg development, and altered gut microbiota composition. Our research reveals a significant link between the pulmonary and intestinal axis after RSV infection. IMPORTANCE RSV is the most common pathogen causing acute lower respiratory tract infections in infants and young children, but the complex interactions between the immune system and gut microbiota induced by RSV infection still requires further research. In this study, it was suggested that RSV infection in 7-day-old BALB/c suckling mice caused lung inflammation and disruption of Th17/Treg cells development, and altered the composition of gut microbiota through IL-22 induced overexpression of RegⅢγ, leading to intestinal immune injury and disruption of gut microbiota. This research reveals that IL-22 may be the link between the lung and gut. This study may provide a new insight into the intestinal symptoms caused by RSV and other respiratory viruses and the connection between the lung and gut axis, as well as new therapeutic ideas for the treatment of RSV-infected children.
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Affiliation(s)
- Jiling Liu
- Department of Microbiology, The Key Laboratory of Microbiology and Parasitology of Anhui Province, The Key Laboratory of Zoonoses of High Institutions in Anhui, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
- College of Life Science, Hebei University, Baoding, Hebei, China
| | - Yixuan Huang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Nian Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Huan Qiu
- School of Nursing, Anhui Medical University, Hefei, Anhui, China
| | - Xiaoyan Zhang
- Department of Microbiology, The Key Laboratory of Microbiology and Parasitology of Anhui Province, The Key Laboratory of Zoonoses of High Institutions in Anhui, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Xiaojie Liu
- Department of Microbiology, The Key Laboratory of Microbiology and Parasitology of Anhui Province, The Key Laboratory of Zoonoses of High Institutions in Anhui, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Maozhang He
- Department of Microbiology, The Key Laboratory of Microbiology and Parasitology of Anhui Province, The Key Laboratory of Zoonoses of High Institutions in Anhui, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Mingwei Chen
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Shenghai Huang
- Department of Microbiology, The Key Laboratory of Microbiology and Parasitology of Anhui Province, The Key Laboratory of Zoonoses of High Institutions in Anhui, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
- School of Life Sciences, Anhui Medical University, Hefei, Anhui, China
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Yang QQ, Zhang HY, Duan XH, Li MH, Sun J, Tian LX, Dong JC, Kong LW. Astragaloside IV targeting autophagy of T cells improves inflammation of asthma. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024; 26:699-713. [PMID: 38213072 DOI: 10.1080/10286020.2023.2294069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 12/03/2023] [Indexed: 01/13/2024]
Abstract
Astragaloside IV (AST) has been confirmed to have antiasthmatic effects. However, the underline mechanism is unclear. The study aimed to explore the treatment mechanism of AST based on autophagy of memory T cells. AST treatment significantly decreased the number of T effector cells in asthma mice blood and the nude mice that received AST-treated TCMs had relieved inflammation compared with the untreated group; meanwhile, we found that AST significantly decreased the autophagy level and inhibited OX40/OX40L signal pathway of lymphocytes. The results highlighted that AST regulated autophagy to inhibit differentiation of effector T-cell phenotype.
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Affiliation(s)
- Qing-Qing Yang
- Shanghai Public Health Clinical Center Affiliated to Fudan University, Shanghai 200040, China
| | - Hong-Ying Zhang
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Xiao-Hong Duan
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
- Department of Integrated Traditional Chinese and Western Medicine, Huashan Hospital Affiliated to Fudan University, Shanghai 201508, China
| | - Mi-Hui Li
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Jing Sun
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Li-Xia Tian
- Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai 201508, China
| | - Jing-Cheng Dong
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
- Department of Integrated Traditional Chinese and Western Medicine, Huashan Hospital Affiliated to Fudan University, Shanghai 201508, China
| | - Ling-Wen Kong
- Institute of Integrated Traditional Chinese and Western Medicine, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
- Department of Integrated Traditional Chinese and Western Medicine, Huashan Hospital Affiliated to Fudan University, Shanghai 201508, China
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Luo J, Qin H, Lei L, Lou W, Li R, Pan Z. Virus-like particles containing a prefusion-stabilized F protein induce a balanced immune response and confer protection against respiratory syncytial virus infection in mice. Front Immunol 2022; 13:1054005. [PMID: 36578490 PMCID: PMC9792133 DOI: 10.3389/fimmu.2022.1054005] [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: 09/26/2022] [Accepted: 11/21/2022] [Indexed: 12/14/2022] Open
Abstract
Respiratory syncytial virus (RSV) is a serious respiratory pathogen in infants and young children worldwide. Currently, no licensed RSV vaccines are available. In this study, we explored stable prefusion conformation virus-like particles (Pre-F VLPs) as RSV vaccine candidates. RSV fusion (F) protein mutants were constructed to form stabilized Pre-F or postfusion (Post-F) configurations. VLPs containing Pre-F or Post-F protein were generated using a recombinant baculovirus (rBV)-insect cell expression system. The assembly and immunological properties of Pre-F or Post-F VLPs were investigated. Pre-F and Post-F VLPs contained antigenic sites Ø and I of pre- and postfusion conformations, respectively. Compared with Post-F VLPs, immunization with Pre-F VLPs elicited upregulation of IFN-γ, IL-2 and IL-10 and downregulation of IL-4 and IL-5 cytokine production in mice. A high percentage of CD25+ Foxp3+ cells or a low percentage of IL-17A-producing cells among CD4+ T cells was observed in the lungs of mice vaccinated with Pre-F VLPs. Importantly, immunization with Pre-F VLPs induced a high level of RSV neutralizing antibody and a balanced immune response, which protected mice against RSV infection without evidence of immunopathology. Our results suggested that Pre-F VLPs generated from rBV-insect cells represent promising RSV vaccine candidates.
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McGinley J, Thwaites R, Brebner W, Greenan-Barrett L, Aerssens J, Öner D, Bont L, Wildenbeest J, Martinón-Torres F, Nair H, Pollard AJ, Openshaw P, Drysdale S. A Systematic Review and Meta-analysis of Animal Studies Investigating the Relationship Between Serum Antibody, T Lymphocytes, and Respiratory Syncytial Virus Disease. J Infect Dis 2021; 226:S117-S129. [PMID: 34522970 DOI: 10.1093/infdis/jiab370] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 07/15/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Respiratory syncytial virus (RSV) infections occur in human populations around the globe, causing disease of variable severity, disproportionately affecting infants and older adults (>65 years of age). Immune responses can be protective but also contribute to disease. Experimental studies in animals enable detailed investigation of immune responses, provide insights into clinical questions, and accelerate the development of passive and active vaccination. We aimed to review the role of antibody and T-cell responses in relation to RSV disease severity in animals. METHODS Systematic review and meta-analysis of animal studies examining the association between T-cell responses/phenotype or antibody titers and severity of RSV disease. The PubMed, Zoological Record, and Embase databases were screened from January 1980 to May 2018 to identify animal studies of RSV infection that assessed serum antibody titer or T lymphocytes with disease severity as an outcome. Sixty-three studies were included in the final review. RESULTS RSV-specific antibody appears to protect from disease in mice, but such an effect was less evident in bovine RSV. Strong T-cell, Th1, Th2, Th17, CD4/CD8 responses, and weak Treg responses accompany severe disease in mice. CONCLUSIONS Murine studies suggest that measures of T-lymphocyte activity (particularly CD4 and CD8 T cells) may be predictive biomarkers of severity. Further inquiry is merited to validate these results and assess relevance as biomarkers for human disease.
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Affiliation(s)
- Joseph McGinley
- Oxford Vaccine Group, Paediatrics, University of Oxford, Oxford, United Kingdom
| | | | - Will Brebner
- Oxford Vaccine Group, Paediatrics, University of Oxford, Oxford, United Kingdom
| | | | - Jeroen Aerssens
- Biomarkers Infectious Diseases, Janssen Pharmaceutica NV, Beerse, Belgium
| | - Deniz Öner
- Biomarkers Infectious Diseases, Janssen Pharmaceutica NV, Beerse, Belgium
| | - Louis Bont
- Department of Paediatric Infectious Diseases and Immunology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Joanne Wildenbeest
- Department of Paediatric Infectious Diseases and Immunology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | | | - Harish Nair
- University of Edinburgh, Edinburgh, United Kingdom
| | - Andrew J Pollard
- Oxford Vaccine Group, Paediatrics, University of Oxford, Oxford, United Kingdom
| | | | - Simon Drysdale
- Oxford Vaccine Group, Paediatrics, University of Oxford, Oxford, United Kingdom.,Paediatric Infectious Diseases Unit, St George's University Hospitals NHS Foundation Trust, London, United Kingdom.,Paediatric Infectious Diseases Research Group, Institute for Infection and Immunity, St George's, University of London, London, United Kingdom
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Shi T, Li N, He Y, Feng J, Mei Z, Du Y, Jie Z. Th17/Treg cell imbalance plays an important role in respiratory syncytial virus infection compromising asthma tolerance in mice. Microb Pathog 2021; 156:104867. [PMID: 33957244 DOI: 10.1016/j.micpath.2021.104867] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 03/03/2021] [Accepted: 03/09/2021] [Indexed: 12/14/2022]
Abstract
Mucosal tolerance is induced early in life and is an important mechanism of protection from diseases, such as asthma. Respiratory syncytial virus (RSV) is a main cause of bronchiolitis and pneumonia in infants. Clinical studies have found that there is a strong association between RSV infection in infancy and later development of asthma, but the underlying mechanisms are unclear. A mouse model of immune tolerance induced by oral feeding of ovalbumin(OVA) was successfully established in our previous studies. We found that RSV infection could break the oral immune tolerance state.RSV infection increased the mRNA expression of IL-17A and IL-17A/Foxp3(the transcription factor forkhead box P3) in OT mice, but the mRNA expression of IL-4 and other T helper(Th)2 cytokines did not change significantly. As detected by flow cytometry analysis, RSV infection elevated Th17 cell levels and correspondingly decreased Regulatory T(Treg) cell levels in the hilar lymph nodes (HLNs) and mesenteric lymph nodes (MLNs), but there were no significant differences in the spleen or peripheral blood.We hypothesized that an imbalance in Th cells played an important role in RSV infection compromising asthma tolerance.RSV infection disrupted asthma tolerance by increasing the Th17/Treg ratio rather than the Th1/Th2 ratio'.Therefore, altering the Th17/Treg ratio has been identified as a potential therapeutic target in asthma caused by RSV or another virus.
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Affiliation(s)
- Tianyun Shi
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, 200240, China; Center of Community-Based Health Research, Fudan University, China
| | - Na Li
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, 200240, China; Center of Community-Based Health Research, Fudan University, China
| | - Yanchao He
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, 200240, China; Center of Community-Based Health Research, Fudan University, China
| | - Jingjing Feng
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, 200240, China; Center of Community-Based Health Research, Fudan University, China
| | - Zhoufang Mei
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, 200240, China; Center of Community-Based Health Research, Fudan University, China
| | - Yong Du
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, 200240, China; Center of Community-Based Health Research, Fudan University, China
| | - Zhijun Jie
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, 200240, China; Center of Community-Based Health Research, Fudan University, China.
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8
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Th17/IL-17 Axis Regulated by Airway Microbes Get Involved in the Development of Asthma. Curr Allergy Asthma Rep 2020; 20:11. [PMID: 32172346 DOI: 10.1007/s11882-020-00903-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW Bronchial asthma is a common respiratory disease induced by immune imbalance, characterized by chronic non-specific airway inflammation and airway hyperresponsiveness (AHR). Many factors induce asthma, among which respiratory infection is the important cause. In this review, we discuss how respiratory microbes participate in the occurrence and progression of asthma via Th17/IL-17 axis. RECENT FINDINGS Pathogenesis of asthma has been considered as closely related to the imbalance in number and function of Th1/Th2 in the CD4+ T lymphocyte subsets. Recent studies have shown that Th17 cell and its secretory IL-17 also play an important role in AHR. Respiratory virus, bacteria, fungi, and other respiratory microbial infections can directly or indirectly induce the differentiation of Th17 cell and the production of related cytokines to induce AHR. Respiratory microbial infection can affect the TH17/IL-17A axis through a variety of mechanisms, thereby promoting the occurrence and development of asthma, and these specific mechanisms may provide new effective therapeutic ideas for asthma.
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9
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Tognarelli EI, Bueno SM, González PA. Immune-Modulation by the Human Respiratory Syncytial Virus: Focus on Dendritic Cells. Front Immunol 2019; 10:810. [PMID: 31057543 PMCID: PMC6478035 DOI: 10.3389/fimmu.2019.00810] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 03/26/2019] [Indexed: 12/23/2022] Open
Abstract
The human respiratory syncytial virus (hRSV) is the leading cause of pneumonia in infants and produces a significant burden in the elderly. It can also infect and produce disease in otherwise healthy adults and recurrently infect those previously exposed to the virus. Importantly, recurrent infections are not necessarily a consequence of antigenic variability, as described for other respiratory viruses, but most likely due to the capacity of this virus to interfere with the host's immune response and the establishment of a protective and long-lasting immunity. Although some genes encoded by hRSV are known to have a direct participation in immune evasion, it seems that repeated infection is mainly given by its capacity to modulate immune components in such a way to promote non-optimal antiviral responses in the host. Importantly, hRSV is known to interfere with dendritic cell (DC) function, which are key cells involved in establishing and regulating protective virus-specific immunity. Notably, hRSV infects DCs, alters their maturation, migration to lymph nodes and their capacity to activate virus-specific T cells, which likely impacts the host antiviral response against this virus. Here, we review and discuss the most important and recent findings related to DC modulation by hRSV, which might be at the basis of recurrent infections in previously infected individuals and hRSV-induced disease. A focus on the interaction between DCs and hRSV will likely contribute to the development of effective prophylactic and antiviral strategies against this virus.
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Affiliation(s)
- Eduardo I Tognarelli
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M Bueno
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo A González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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10
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Rogers MC, Williams JV. Quis Custodiet Ipsos Custodes? Regulation of Cell-Mediated Immune Responses Following Viral Lung Infections. Annu Rev Virol 2018; 5:363-383. [PMID: 30052492 DOI: 10.1146/annurev-virology-092917-043515] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Viral lung infections are leading causes of morbidity and mortality. Effective immune responses to these infections require precise immune regulation to preserve lung function after viral clearance. One component of airway pathophysiology and lung injury associated with acute respiratory virus infection is effector T cells, yet these are the primary cells required for viral clearance. Accordingly, multiple immune mechanisms exist to regulate effector T cells, limiting immunopathology while permitting clearance of infection. Much has been learned in recent years about regulation of T cell function during chronic infection and cancer, and it is now clear that many of these mechanisms also control inflammation in acute lung infection. In this review, we focus on regulatory T cells, inhibitory receptors, and other cells and molecules that regulate cell-mediated immunity in the context of acute respiratory virus infection.
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Affiliation(s)
- Meredith C Rogers
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15224, USA.,Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA;
| | - John V Williams
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15224, USA.,Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania 15224, USA;
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11
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Wang D, Bai S, Cui Y, Zhao N, Qi F, Liu J, Zeng S, Xu L, Hu H, Liu B. Respiratory syncytial virus prevents the subsequent development of ovalbumin-induced allergic responses by inhibiting ILC2 via the IL-33/ST2 pathway. Immunotherapy 2018; 10:1065-1076. [PMID: 30027786 DOI: 10.2217/imt-2018-0059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
AIM How respiratory syncytial virus (RSV) influences the development of ovalbumin (OVA)-induced asthma remains elusive. As potent T helper (Th)2 cytokine producers, group 2 innate lymphoid cells (ILC2s) are known to serve important functions in the pathogenesis of allergic inflammation. However, how RSV infection affects innate immunity, especially with regard to the function of ILC2s in OVA-induced allergic airway inflammation, is largely unknown. MATERIALS & METHODS RSV was used to infect adult BALB/c mice intranasally prior to sensitization and subsequent challenge with OVA. ILC2 frequencies and Th2 cytokine production by ILC2s were assessed by flow cytometry. Cytokine levels were detected both by real-time PCR and ELISA. RESULTS Previous infection with RSV attenuated airway inflammation and decreased Th2 cytokine production in mice sensitized and challenged with OVA. Furthermore, previous infection with RSV inhibited the influx of ILC2s into the lung, and constrained their Th2 cytokine production. Adoptive transfer of ILC2s increased asthma-associated airway inflammation in mice previously infected with RSV. These results indicate that previous infection with RSV prevents OVA-induced asthma development via inhibition of ILC2s. Previous infection with RSV attenuated IL-33 production in lung tissue and reduced relative ST2L expression in lung ILC2s, meaning that previous infection with RSV may alter ILC2 function via the IL-33/ST2 signaling pathway. CONCLUSION These results demonstrate that previous infection with RSV attenuates OVA-induced airway inflammation by inhibiting the recruitment and Th2 cytokine production of ILC2s via the IL-33/ST2 pathway.
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Affiliation(s)
- Dandan Wang
- Department of Medical Laboratory, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, PR China.,Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, 110122, PR China
| | - Song Bai
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, 110122, PR China
| | - Yulin Cui
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, 110122, PR China
| | - Na Zhao
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, 110122, PR China
| | - Feifei Qi
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, 110122, PR China
| | - Jing Liu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, 110122, PR China
| | - Sheng Zeng
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, 110122, PR China
| | - Lei Xu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, 110122, PR China
| | - Haiyan Hu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, 110122, PR China
| | - Beixing Liu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, 110122, PR China
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12
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Zhang C, Song Y, Wang C, Zhao L, Kang H, Ma X, Wang J, Zhang T, Shumin W, Ma C. The effects of chrysophanol on ovalbumin (OVA)-induced chronic lung toxicology by inhibiting Th17 response. Toxicol Mech Methods 2017; 27:327-334. [PMID: 28399782 DOI: 10.3109/15376516.2015.1053653] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Chrysophanol (CH), extracted from plants of Rheum genus, possesses various pharmacological effects including anti-inflammatory activity. The purpose of the present study was to evaluate the protective effects and the underlying mechanisms of CH on ovalbumin (OVA)-induced asthma in mice. Fifty mice were randomly assigned to five experimental groups: control group, model group, dexamethasone (2 mg/kg) group and CH (5 and 10 mg/kg) groups. The number of eosinophil cells and the production of interleukin-6 (IL-6), IL-1β, IL-17 A and tumor necrosis factor-α in bronchoalveolar lavage fluid (BALF) were measured. In addition, pulmonary histopathology, airway resistance (Raw), T-helper17 (Th17) cells frequency and RORγt expression were evaluated. Our study demonstrated that CH effectively decreased eosinophil count and inflammatory cytokines production in BALF. In addition, treatment with CH significantly inhibited the Raw, Th17 percentage and RORγt expression in OVA-induced animals compared with those in model group. Histological studies also demonstrated that CH significantly suppressed OVA-induced eosinophilia in lung tissue compared with model group. Our findings supported that CH can prevent allergic asthma in the mouse model.
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Affiliation(s)
- Chunyan Zhang
- a Department of Cardiology , the Second Affiliated Hospital, Medical School of Xi?an Jiaotong University , Xi'an , P.R. China
| | - Yafan Song
- a Department of Cardiology , the Second Affiliated Hospital, Medical School of Xi?an Jiaotong University , Xi'an , P.R. China
| | - Congxia Wang
- a Department of Cardiology , the Second Affiliated Hospital, Medical School of Xi?an Jiaotong University , Xi'an , P.R. China
| | - Ling Zhao
- a Department of Cardiology , the Second Affiliated Hospital, Medical School of Xi?an Jiaotong University , Xi'an , P.R. China
| | - Huafeng Kang
- b Department of Oncology, the Second Affiliated Hospital , Medical School of Xi'an Jiaotong University , Xi'an , P.R. China
| | - Xiaobin Ma
- b Department of Oncology, the Second Affiliated Hospital , Medical School of Xi'an Jiaotong University , Xi'an , P.R. China
| | - Jing Wang
- c Changchun University of Chinese Medicine , Changchun , P.R. China
| | - Tianzhu Zhang
- c Changchun University of Chinese Medicine , Changchun , P.R. China
| | - Wang Shumin
- c Changchun University of Chinese Medicine , Changchun , P.R. China
| | - Chunhua Ma
- c Changchun University of Chinese Medicine , Changchun , P.R. China
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13
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Shi T, He Y, Sun W, Wu Y, Li L, Jie Z, Su X. Respiratory Syncytial virus infection compromises asthma tolerance by recruiting interleukin-17A-producing cells via CCR6-CCL20 signaling. Mol Immunol 2017; 88:45-57. [PMID: 28599122 DOI: 10.1016/j.molimm.2017.05.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 05/16/2017] [Accepted: 05/22/2017] [Indexed: 12/14/2022]
Abstract
Asthma tolerance can be induced by breast-feeding or oral feeding with ovalbumin (OVA). Anergy or deletion of specific T cells and generation of T regulatory cells might contribute to this process. However, whether respiratory syncytial virus (RSV) infection would affect asthma tolerance is not very clear. Here, we first established asthma and oral tolerance mouse models and then analyzed airway hypersensitivity and asthma-related genes in the lung, CCR6-expressing IL-17A+ cells in the lungs, hilar or mesenteric lymph nodes (HLN or MLN) among control, asthmatic, tolerized, RSV infection, and RSV-infected asthmatic and tolerized groups. We also administrated CCL20 or IL-17A neutralizing antibody to RSV-infected tolerized mice to test whether RSV infection would mobilize CCR6-expressing IL-17A+ cells from MLN to the infected lungs. We found that tolerized mice infected with RSV developed asthma-like responses manifested by increasing airway hypersensitivity, exacerbating peribronchial inflammation, elevating lung asthma-related genes (Il17a, Mu5ac, and Gob5), accumulating CCR6-expressing IL-17A+ cells in the lungs and HLN with a reduction of this cell population in MLN. CCL20-CCR6 co-expression in RSV-infected tolerized MLN was reduced. Neutralization of CCL20 reduced CD3+CD4+CCR6+ cells in the RSV-infected tolerized HLN. Neutralization of IL-17A mitigated the compromising effects of RSV infection on asthma tolerance. Taken together, RSV infection impairs asthma tolerance by recruiting IL-17A-producing cells via CCR6-CCL20 signaling. The findings provide novel insight into exacerbation and therapeutic strategy of asthma under RSV infection.
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Affiliation(s)
- Tianyun Shi
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, 200240, China
| | - Yanchao He
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, 200240, China
| | - Wei Sun
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, 200240, China
| | - Yi Wu
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, 200240, China
| | - Ling Li
- CAS Key Laboratory of Molecular Virology & Immunology, Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, 200031, University of Chinese Academy of Sciences, China
| | - Zhijun Jie
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, 200240, China.
| | - Xiao Su
- CAS Key Laboratory of Molecular Virology & Immunology, Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, 200031, University of Chinese Academy of Sciences, China.
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14
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Hongyan L. Esculetin Attenuates Th2 and Th17 Responses in an Ovalbumin-Induced Asthmatic Mouse Model. Inflammation 2017; 39:735-43. [PMID: 26797918 DOI: 10.1007/s10753-015-0300-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The purpose of the current study was to investigate the anti-asthmatic effect of esculetin (ES) and explore its potential mechanism with a mouse model of allergic asthma. A total number of 50 mice were randomly assigned to five groups: control, model, dexamethasone (Dex, 2 mg/kg), and ES (20 mg/kg, 40 mg/kg). Mouse asthma model was developed with the sensitization and challenge of ovalbumin (OVA). The levels of IgE in serum, eosinophilia infiltration, Th2/Th17 cytokines, Th17 cell frequency, histological condition, and the protein expressions of RORγt, GATA3 were detected. Our study demonstrated that ES inhibited, OVA-induced eosinophil count, interleukin-4 (IL-4), IL-5, IL-13, and IL-17A levels were recovered in bronchoalveolar lavage fluid. Flow cytometry (FCM) studies revealed that ES substantially inhibited Th17 cells' percentage. Western blot study also indicated that ES downregulated RORγt and GATA3 expressions. Meanwhile, ES had beneficial effects on the histological alteration. These findings suggested that ES might effectively ameliorate the progression of asthma and could be used as a therapy for patients with allergic asthma.
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Affiliation(s)
- Long Hongyan
- Central Laboratory, Nanjing Municipal Hospital of Traditional Chinese Medicine, The Third Affiliated Hospital of Nanjing University of T.C.M., 1 Jinling Road, Nanjing, 210001, Jiangsu Province, China.
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15
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Mangodt TC, Van Herck MA, Nullens S, Ramet J, De Dooy JJ, Jorens PG, De Winter BY. The role of Th17 and Treg responses in the pathogenesis of RSV infection. Pediatr Res 2015; 78:483-91. [PMID: 26267154 DOI: 10.1038/pr.2015.143] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 04/29/2015] [Indexed: 12/21/2022]
Abstract
The respiratory syncytial virus (RSV) represents the leading cause of viral bronchiolitis and pneumonia in children worldwide and is associated with high morbidity, hospitalization rate, and significant mortality rates. The immune response elicited by RSV is one of the main factors contributing to the pathogenesis of the disease. Two subsets of the cellular immune response, the T helper 17 cell (Th17) and the regulatory T-cell (Treg), and more particularly the balance between these two subsets, might play a significant role in the pathogenesis of the RSV infection. The developmental pathways of Th17 and Treg cells are closely and reciprocally interconnected and plasticity has been demonstrated from Treg toward Th17. During an RSV infection, the functions of both subsets are opposed to one another regarding viral clearance and clinical severity. Th17 and Treg cells offer a promising new view on the pathogenesis of an RSV infection and deserve further exploration.
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Affiliation(s)
- Thomas C Mangodt
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Mikhaïl A Van Herck
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Sara Nullens
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Antwerp, Belgium
| | - José Ramet
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Antwerp, Belgium.,Department of Pediatrics, Antwerp University Hospital, Edegem, Belgium
| | - Jozef J De Dooy
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Antwerp, Belgium.,Department of Critical Care Medicine, Antwerp University Hospital, Edegem, Belgium
| | - Philippe G Jorens
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Antwerp, Belgium.,Department of Critical Care Medicine, Antwerp University Hospital, Edegem, Belgium
| | - Benedicte Y De Winter
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Antwerp, Belgium
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16
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Chen T, Gao J, Xiang P, Chen Y, Ji J, Xie P, Wu H, Xiao W, Wei Y, Wang S, Lan L, Ji H, Yan T. Protective effect of platycodin D on liver injury in alloxan-induced diabetic mice via regulation of Treg/Th17 balance. Int Immunopharmacol 2015; 26:338-48. [PMID: 25887267 DOI: 10.1016/j.intimp.2015.04.001] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 03/29/2015] [Accepted: 04/02/2015] [Indexed: 02/06/2023]
Abstract
Platycodin D is a major pharmacological constituent of Platycodi Radix with immunomodulatory activity. The present study was designed to investigate how platycodin D (PLD) reveals liver injury in diabetic mice and its mechanism. Fifty mice were divided into five groups randomly: control group, model group, rosiglitazone (ROG, 10 mg/kg) group, PLD (50 mg/kg) group, and PLD (100 mg/kg) group. Diabetes was induced with the injection of alloxan monohydrate (150 mg/kg) subcutaneously, and animals with blood glucose level of ≥250 mg/dl were considered as diabetic mice. After the first day of diabetes induction, the treatments were performed for 8 weeks. Then the animals were anaesthetized, and blood and liver samples were also collected for further assay. PLD significantly decreased the serum levels of glucose, insulin, interleukin-6 (IL-6), interleukin-1β, tumor necrosis factor-α (TNF-α), and interleukin (IL)-17A and increased IL-10 level in serum. PLD effectively downregulated aspartate transaminase (AST), alanine aminotransferase (ALT), total cholesterol (TC), and triglycerides (TG) in liver. PLD also attenuated liver histological change. In addition, PLD significantly attenuated IL-17A and IL-10 levels in vitro, flow cytometry (FCM) studies also showed that PLD remarkably inhibited Th17 cells and significantly increased Treg cells in liver tissues and spleen cells. Western blot demonstrated PLD inhibited the phosphorylation of JAK and STAT-3 and the expression of RORγt and increased the expression of Foxp3. The findings showed that PLD exerts beneficial effects on alloxan-induced liver injury in mice.
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Affiliation(s)
- Tong Chen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China
| | - Jin Gao
- School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Pengjun Xiang
- School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yongde Chen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China
| | - Jing Ji
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China
| | - Peng Xie
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China
| | - Hui Wu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China
| | - Wei Xiao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China
| | - Yidan Wei
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China
| | - Shumin Wang
- Changchun University of Chinese Medicine, Changchun 130117, China
| | - Li Lan
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China
| | - Hui Ji
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China.
| | - Tianhua Yan
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.
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