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Zhu Y, Hu Y, Liu Z, Chang L, Geng X, Yin X, Zhao BQ, Fan W. The LPS-inactivating enzyme acyloxyacyl hydrolase protects the brain from experimental stroke. Transl Res 2024; 270:42-51. [PMID: 38522823 DOI: 10.1016/j.trsl.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 02/29/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Blood-brain-barrier (BBB) disruption is a pathological hallmark of ischemic stroke, and inflammation occurring at the BBB contributes to the pathogenesis of ischemic brain injury. Lipopolysaccharide (LPS), a cell wall component of Gram-negative bacteria, is elevated in patients with acute stroke. The activity of LPS is controlled by acyloxyacyl hydrolase (AOAH), a host enzyme that deacylates LPS to inactivated forms. However, whether AOAH influences the pathogenesis of ischemic stroke remain elusive. We performed in vivo experiments to explore the role and mechanism of AOAH on neutrophil extravasation, BBB disruption, and brain infarction. We found that AOAH was upregulated in neutrophils in peri-infarct areas from mice with transient focal cerebral ischemia. AOAH deficiency increased neutrophil extravasation into the brain parenchyma and proinflammatory cytokine production, broke down the BBB and worsened stroke outcomes in mice. These effects require Toll-like receptor 4 (TLR4) because absence of TLR4 or pharmacologic inhibition of TLR4 signaling prevented the exacerbated inflammation and BBB damage in Aoah-/- mice after ischemic stroke. Importantly, neutrophil depletion or inhibition of neutrophil trafficking by blocking LFA-1 integrin dramatically reduced stroke-induced BBB breakdown in Aoah-/- mice. Furthermore, virus-mediated overexpression of AOAH induced a substantial decrease in neutrophil recruitment that was accompanied by reducing BBB damage and stroke volumes. Our findings show the importance of AOAH in regulating neutrophil-dependent BBB breakdown and cerebral infarction. Consequently, strategies that modulate AOAH may be a new therapeutic approach for treatment of ischemic stroke.
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Affiliation(s)
- Yuanbo Zhu
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Yue Hu
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Zhongwang Liu
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Luping Chang
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Xue Geng
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Xuhui Yin
- Institute of Neuroscience and Third Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, China
| | - Bing-Qiao Zhao
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China.
| | - Wenying Fan
- Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China.
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2
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Liu J, Li Y, Shen D, Li X, Wang K, Nagaoka K, Li C. Gut microbiota intervention alleviates pulmonary inflammation in broilers exposed to fine particulate matter from broiler house. Appl Environ Microbiol 2024; 90:e0217423. [PMID: 38656183 PMCID: PMC11107152 DOI: 10.1128/aem.02174-23] [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: 12/05/2023] [Accepted: 03/31/2024] [Indexed: 04/26/2024] Open
Abstract
The gut microbiota of poultry is influenced by a variety of factors, including feed, drinking water, airborne dust, and footpads, among others. Gut microbiota can affect the immune reaction and inflammation in the lungs. To investigate the effect of gut microbiota variation on lung inflammation induced by PM2.5 (fine particulate matter) in broilers, 36 Arbor Acres (AA) broilers were randomly assigned to three groups: control group (CON), PM2.5 exposure group (PM), and PM2.5 exposure plus oral antibiotics group (PMA). We used non-absorbable antibiotics (ABX: neomycin and amikacin) to modify the microbiota composition in the PMA group. The intervention was conducted from the 18th to the 28th day of age. Broilers in the PM and PMA groups were exposed to PM by a systemic exposure method from 21 to 28 days old, and the concentration of PM2.5 was controlled at 2 mg/m3. At 28 days old, the lung injury score, relative mRNA expression of inflammatory factors, T-cell differentiation, and dendritic cell function were significantly increased in the PM group compared to the CON group, and those of the PMA group were significantly decreased compared to the PM group. There were significant differences in both α and β diversity of cecal microbiota among these three groups. Numerous bacterial genera showed significant differences in relative abundance among the three groups. In conclusion, gut microbiota could affect PM2.5-induced lung inflammation in broilers by adjusting the capacity of antigen-presenting cells to activate T-cell differentiation. IMPORTANCE Gut microbes can influence the development of lung inflammation, and fine particulate matter collected from broiler houses can lead to lung inflammation in broilers. In this study, we explored the effect of gut microbes modified by intestinal non-absorbable antibiotics on particulate matter-induced lung inflammation. The results showed that modification in the composition of gut microbiota could alleviate lung inflammation by attenuating the ability of dendritic cells to stimulate T-cell differentiation, which provides a new way to protect lung health in poultry farms.
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Affiliation(s)
- Junze Liu
- Research Centre for Livestock Environmental Control and Smart Production, National Center for International Research on Animal Gut Nutrition, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yuan Li
- Research Centre for Livestock Environmental Control and Smart Production, National Center for International Research on Animal Gut Nutrition, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Dan Shen
- Research Centre for Livestock Environmental Control and Smart Production, National Center for International Research on Animal Gut Nutrition, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Xiaoqing Li
- Research Centre for Livestock Environmental Control and Smart Production, National Center for International Research on Animal Gut Nutrition, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Kai Wang
- Research Centre for Livestock Environmental Control and Smart Production, National Center for International Research on Animal Gut Nutrition, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Kentaro Nagaoka
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Chunmei Li
- Research Centre for Livestock Environmental Control and Smart Production, National Center for International Research on Animal Gut Nutrition, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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3
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Wu Z, Deng B, Shen Y, Li X, Li J, Li Y, Ma S, Pan Y, Ding F. Acyloxyacyl Hydrolase Protects against Kidney Injury via Inhibition of Tubular CD74-Macrophage Crosstalk. Int J Biol Sci 2024; 20:3061-3075. [PMID: 38904010 PMCID: PMC11186370 DOI: 10.7150/ijbs.91237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 05/13/2024] [Indexed: 06/22/2024] Open
Abstract
Renal fibrosis is the common pathway in the progression of chronic kidney disease (CKD). Acyloxyacyl hydrolase (AOAH) is expressed in various phagocytes and is highly expressed in proximal tubular epithelial cells (PTECs). Research shows that AOAH plays a critical role in infections and chronic inflammatory diseases, although its role in kidney injury is unknown. Here, we found that AOAH deletion led to exacerbated kidney injury and fibrosis after folic acid (FA) administration, which was reversed by overexpression of Aoah in kidneys. ScRNA-seq revealed that Aoah-/- mice exhibited increased subpopulation of CD74+ PTECs, though the percentage of total PTECs were decreased compared to WT mice after FA treatment. Additionally, exacerbated kidney injury and fibrosis seen in Aoah-/- mice was attenuated via administration of methyl ester of (S, R)-3-(4-hydroxyphenyl)-4,5-dihydro-5-isoxazole acetic acid (ISO-1), an inhibitor of macrophage inhibition factor (MIF) and CD74 binding. Finally, AOAH expression was found positively correlated with estimated glomerular filtration rate while negatively correlated with the degree of renal fibrosis in kidneys of CKD patients. Thus, our work indicates that AOAH protects against kidney injury and fibrosis by inhibiting renal tubular epithelial cells CD74 signaling pathways. Targeting kidney AOAH represents a promising strategy to prevent renal fibrosis progression.
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Affiliation(s)
- Zhenkai Wu
- Division of Nephrology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bo Deng
- Division of Nephrology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuqi Shen
- Division of Nephrology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xuezhu Li
- Division of Nephrology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiaolun Li
- Division of Nephrology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Li
- Division of Nephrology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuai Ma
- Division of Nephrology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Pan
- Division of Nephrology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng Ding
- Division of Nephrology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Gut Microecology and Associated Major Diseases Research
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4
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Song X, Liang J, Lin S, Xie Y, Ke C, Ao D, Lu J, Chen X, He Y, Liu X, Li W. Gut-lung axis and asthma: A historical review on mechanism and future perspective. Clin Transl Allergy 2024; 14:e12356. [PMID: 38687096 PMCID: PMC11060082 DOI: 10.1002/clt2.12356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 03/24/2024] [Accepted: 04/17/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND Gut microbiota are closely related to the development and regulation of the host immune system by regulating the maturation of immune cells and the resistance to pathogens, which affects the host immunity. Early use of antibiotics disrupts the homeostasis of gut microbiota and increases the risk of asthma. Gut microbiota actively interact with the host immune system via the gut-lung axis, a bidirectional communication pathway between the gut and lung. The manipulation of gut microbiota through probiotics, helminth therapy, and fecal microbiota transplantation (FMT) to combat asthma has become a hot research topic. BODY: This review mainly describes the current immune pathogenesis of asthma, gut microbiota and the role of the gut-lung axis in asthma. Moreover, the potential of manipulating the gut microbiota and its metabolites as a treatment strategy for asthma has been discussed. CONCLUSION The gut-lung axis has a bidirectional effect on asthma. Gut microecology imbalance contributes to asthma through bacterial structural components and metabolites. Asthma, in turn, can also cause intestinal damage through inflammation throughout the body. The manipulation of gut microbiota through probiotics, helminth therapy, and FMT can inform the treatment strategies for asthma by regulating the maturation of immune cells and the resistance to pathogens.
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Affiliation(s)
- Xiu‐Ling Song
- Department of PediatricsAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina
| | - Juan Liang
- Department of PediatricsAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina
| | - Shao‐Zhu Lin
- Department of PediatricsAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina
| | - Yu‐Wei Xie
- Department of PediatricsAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina
| | - Chuang‐Hong Ke
- Department of PediatricsAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina
| | - Dang Ao
- Department of PediatricsAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina
| | - Jun Lu
- Department of PediatricsAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina
| | - Xue‐Mei Chen
- Department of PediatricsAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina
| | - Ying‐Zhi He
- Department of PediatricsAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina
| | - Xiao‐Hua Liu
- Department of PediatricsAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina
| | - Wen Li
- Department of PediatricsAffiliated Hospital of Guangdong Medical UniversityZhanjiangChina
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5
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Perdijk O, Azzoni R, Marsland BJ. The microbiome: an integral player in immune homeostasis and inflammation in the respiratory tract. Physiol Rev 2024; 104:835-879. [PMID: 38059886 DOI: 10.1152/physrev.00020.2023] [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: 05/02/2023] [Revised: 11/07/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023] Open
Abstract
The last decade of microbiome research has highlighted its fundamental role in systemic immune and metabolic homeostasis. The microbiome plays a prominent role during gestation and into early life, when maternal lifestyle factors shape immune development of the newborn. Breast milk further shapes gut colonization, supporting the development of tolerance to commensal bacteria and harmless antigens while preventing outgrowth of pathogens. Environmental microbial and lifestyle factors that disrupt this process can dysregulate immune homeostasis, predisposing infants to atopic disease and childhood asthma. In health, the low-biomass lung microbiome, together with inhaled environmental microbial constituents, establishes the immunological set point that is necessary to maintain pulmonary immune defense. However, in disease perturbations to immunological and physiological processes allow the upper respiratory tract to act as a reservoir of pathogenic bacteria, which can colonize the diseased lung and cause severe inflammation. Studying these host-microbe interactions in respiratory diseases holds great promise to stratify patients for suitable treatment regimens and biomarker discovery to predict disease progression. Preclinical studies show that commensal gut microbes are in a constant flux of cell division and death, releasing microbial constituents, metabolic by-products, and vesicles that shape the immune system and can protect against respiratory diseases. The next major advances may come from testing and utilizing these microbial factors for clinical benefit and exploiting the predictive power of the microbiome by employing multiomics analysis approaches.
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Affiliation(s)
- Olaf Perdijk
- Department of Immunology, School of Translational Science, Monash University, Melbourne, Victoria, Australia
| | - Rossana Azzoni
- Department of Immunology, School of Translational Science, Monash University, Melbourne, Victoria, Australia
| | - Benjamin J Marsland
- Department of Immunology, School of Translational Science, Monash University, Melbourne, Victoria, Australia
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6
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Xu J, Abdulsalam Khaleel R, Zaidan HK, Faisal Mutee A, Fahmi Fawy K, Gehlot A, Abbas AH, Arias Gonzáles JL, Amin AH, Ruiz-Balvin MC, Imannezhad S, Bahrami A, Akhavan-Sigari R. Discovery of common molecular signatures and drug repurposing for COVID-19/Asthma comorbidity: ACE2 and multi-partite networks. Cell Cycle 2024; 23:405-434. [PMID: 38640424 DOI: 10.1080/15384101.2024.2340859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 04/04/2024] [Indexed: 04/21/2024] Open
Abstract
Angiotensin-converting enzyme 2 (ACE2) is identified as the functional receptor for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of the ongoing global coronavirus disease-2019 (COVID-19) pandemic. This study aimed to elucidate potential therapeutic avenues by scrutinizing approved drugs through the identification of the genetic signature associated with SARS-CoV-2 infection in individuals with asthma. This exploration was conducted through an integrated analysis, encompassing interaction networks between the ACE2 receptor and common host (co-host) factors implicated in COVID-19/asthma comorbidity. The comprehensive analysis involved the identification of common differentially expressed genes (cDEGs) and hub-cDEGs, functional annotations, interaction networks, gene set variation analysis (GSVA), gene set enrichment analysis (GSEA), and module construction. Interaction networks were used to identify overlapping disease modules and potential drug targets. Computational biology and molecular docking analyzes were utilized to discern functional drug modules. Subsequently, the impact of the identified drugs on the expression of hub-cDEGs was experimentally validated using a mouse model. A total of 153 cDEGs or co-host factors associated with ACE2 were identified in the COVID-19 and asthma comorbidity. Among these, seven significant cDEGs and proteins - namely, HRAS, IFNG, JUN, CDH1, TLR4, ICAM1, and SCD-were recognized as pivotal host factors linked to ACE2. Regulatory network analysis of hub-cDEGs revealed eight top-ranked transcription factors (TFs) proteins and nine microRNAs as key regulatory factors operating at the transcriptional and post-transcriptional levels, respectively. Molecular docking simulations led to the proposal of 10 top-ranked repurposable drug molecules (Rapamycin, Ivermectin, Everolimus, Quercetin, Estradiol, Entrectinib, Nilotinib, Conivaptan, Radotinib, and Venetoclax) as potential treatment options for COVID-19 in individuals with comorbid asthma. Validation analysis demonstrated that Rapamycin effectively inhibited ICAM1 expression in the HDM-stimulated mice group (p < 0.01). This study unveils the common pathogenesis and genetic signature underlying asthma and SARS-CoV-2 infection, delineated by the interaction networks of ACE2-related host factors. These findings provide valuable insights for the design and discovery of drugs aimed at more effective therapeutics within the context of lung disease comorbidities.
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Affiliation(s)
- Jiajun Xu
- College of Veterinary & Life Sciences, the University of Glasgow, Glasgow, UK
| | | | | | | | - Khaled Fahmi Fawy
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Anita Gehlot
- Uttaranchal Institute of Technology, Uttaranchal University, Dehradun, India
| | | | - José Luis Arias Gonzáles
- Department of Social Sciences, Faculty of Social Studies, University of British Columbia, Vancouver, Canada
| | - Ali H Amin
- Zoology Department, Faculty of Science, Mansoura University, Mansoura, Egypt
| | | | - Shima Imannezhad
- Department of Pediatrics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abolfazl Bahrami
- Biomedical Center for Systems Biology Science Munich, Ludwig-Maximilians-University, Munich, Germany
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Reza Akhavan-Sigari
- Department of Neurosurgery, University Medical Center Tuebingen, Tuebingen, Germany
- Department of Health Care Management and Clinical Research, Collegium Humanum, Warsaw, Poland
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7
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Quan J, Wen X, Su G, Zhong Y, Huang T, Xiong Z, Huang J, Lv Y, Li S, Luo S, Luo C, Cai X, Lai X, Xiang Y, Zheng SG, Shao Y, Lin H, Gao X, Tang J, Lai T. Epithelial SIRT6 governs IL-17A pathogenicity and drives allergic airway inflammation and remodeling. Nat Commun 2023; 14:8525. [PMID: 38135684 PMCID: PMC10746710 DOI: 10.1038/s41467-023-44179-x] [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: 02/13/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Dysregulation of IL-17A is closely associated with airway inflammation and remodeling in severe asthma. However, the molecular mechanisms by which IL-17A is regulated remain unclear. Here we identify epithelial sirtuin 6 (SIRT6) as an epigenetic regulator that governs IL-17A pathogenicity in severe asthma. Mice with airway epithelial cell-specific deletion of Sirt6 are protected against allergen-induced airway inflammation and remodeling via inhibiting IL-17A-mediated inflammatory chemokines and mesenchymal reprogramming. Mechanistically, SIRT6 directly interacts with RORγt and mediates RORγt deacetylation at lysine 192 via its PPXY motifs. SIRT6 promotes RORγt recruitment to the IL-17A gene promoter and enhances its transcription. In severe asthma patients, high expression of SIRT6 positively correlates with airway remodeling and disease severity. SIRT6 inhibitor (OSS_128167) treatment significantly attenuates airway inflammation and remodeling in mice. Collectively, these results uncover a function for SIRT6 in regulating IL-17A pathogenicity in severe asthma, implicating SIRT6 as a potential therapeutic target for severe asthma.
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Affiliation(s)
- Jingyun Quan
- Department of Respiratory and Critical Care Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523710, China
- Department of Health Management & Physical Examination Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Xiaoxia Wen
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Guomei Su
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Yu Zhong
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Tong Huang
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Zhilin Xiong
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Jiewen Huang
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Yingying Lv
- Department of Respiratory and Critical Care Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523710, China
| | - Shihai Li
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Shuhua Luo
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Chaole Luo
- Department of Respiratory and Critical Care Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523710, China
| | - Xin Cai
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Xianwen Lai
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Yuanyuan Xiang
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Song Guo Zheng
- Dongguan Key Laboratory of Chronic Inflammatory Diseases, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523710, China
| | - Yiming Shao
- Department of Respiratory and Critical Care Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523710, China
| | - Haitao Lin
- Department of Health Management & Physical Examination Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Xiao Gao
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China.
| | - Jing Tang
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China.
| | - Tianwen Lai
- Department of Respiratory and Critical Care Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523710, China.
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China.
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8
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Wang M, Qu J, Yang J, Zhang T, Tan WR, Liao S, Chen X, Liu Y, Long X, Li X, Xia Y, Tan NS, Li L, Fang M. A missing jigsaw within the hygiene hypothesis: Low-dose bisphenol A exposure attenuates lipopolysaccharide-induced asthma protection. PNAS NEXUS 2023; 2:pgad312. [PMID: 37954159 PMCID: PMC10635653 DOI: 10.1093/pnasnexus/pgad312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 09/07/2023] [Indexed: 11/14/2023]
Abstract
The rising occurrence of allergic asthma in early life across industrialized countries suggests that environmental factors play a crucial role in determining asthma susceptibility and severity. While prior exposure to microbial lipopolysaccharides (LPSs) has been found to offer protection against allergic asthma, infants residing in urban environments are increasingly exposed to environmental pollutants. Utilizing limulus lysate test screens and virtual screening models, we identified pollutants that can modulate LPS bioactivity. This investigation revealed that bisphenol A (BPA), a chemical commonly used in numerous household items and previously implicated in obesity and cancer, effectively neutralizes LPS. In-depth mechanistic analyses showed that BPA specifically binds to the lipid A component of LPS, leading to inactivation. This interaction eliminates the immunostimulatory activity of LPS, making mice more susceptible to house dust mite (HDM)-induced allergic asthma. BPA reactivates lung epithelial cells, consequently amplifying type 2 responses to HDMs in dendritic cells. This chemical interplay provides new insights into the pathophysiology of asthma in relation to human exposure. Understanding the intricate relationships between environmental chemicals and microbial antigens, as well as their impacts on innate immunity, is critical for the development of intervention strategies to address immune disorders resulting from urbanization.
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Affiliation(s)
- Mengjing Wang
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Jing Qu
- Department of Pathogen Biology, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Junjie Yang
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Tian Zhang
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 639798, Singapore
| | - Wei Ren Tan
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 639798, Singapore
| | - Shumin Liao
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xing Chen
- Institute of Mass Spectrometer and Atmospheric Environment, Jinan University, Guangzhou 510632, China
| | - Yingzi Liu
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Xiang Long
- Department of Respiratory Medicine and Critical Care, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Xue Li
- Institute of Mass Spectrometer and Atmospheric Environment, Jinan University, Guangzhou 510632, China
| | - Yun Xia
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 639798, Singapore
| | - Nguan Soon Tan
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 639798, Singapore
| | - Liang Li
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Joint Laboratory of Guangdong-Hong Kong Universities for Vascular Homeostasis and Diseases, Shenzhen 518055, China
| | - Mingliang Fang
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
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9
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Qian G, Jiang W, Sun D, Sun Z, Chen A, Fang H, Wang J, Liu Y, Yin Z, Wei H, Fang H, Zhang X. B-cell-derived IL-10 promotes allergic sensitization in asthma regulated by Bcl-3. Cell Mol Immunol 2023; 20:1313-1327. [PMID: 37653127 PMCID: PMC10616210 DOI: 10.1038/s41423-023-01079-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/15/2023] [Indexed: 09/02/2023] Open
Abstract
Aeroallergen sensitization, mainly mediated by lung epithelium and dendritic cells (DCs), is integral to allergic asthma pathogenesis and progression. IL-10 has a dual role in immune responses, as it inhibits myeloid cell activation but promotes B-cell responses and epithelial cell proliferation. Here, we report a proinflammatory function of B-cell-derived IL-10 modulated by Bcl-3 in allergic asthma. Specifically, Bcl-3-/- mice showed elevated IL-10 levels and were found to be highly vulnerable to allergic asthma induced by house dust mites (HDMs). IL-10 had a positive correlation with the levels of the DC chemoattractant CCL-20 in HDM-sensitized mice and in patients with asthma and induced a selective increase in CCL-20 production by mouse lung epithelial cells. Blockade of IL-10 or IL-10 receptors during sensitization dampened both HDM-induced sensitization and asthma development. IL-10 levels peaked 4 h post sensitization with HDM and IL-10 was primarily produced by B cells under Bcl-3-Blimp-1-Bcl-6 regulation. Mice lacking B-cell-derived IL-10 displayed decreased lung epithelial CCL-20 production and diminished DC recruitment to the lungs upon HDM sensitization, thereby demonstrating resistance to HDM-induced asthma. Moreover, responses to HDM stimulation in Bcl-3-/- mice lacking B-cell-derived IL-10 were comparable to those in Bcl-3+/+ mice. The results revealed an unexpected role of B-cell-derived IL-10 in promoting allergic sensitization and demonstrated that Bcl-3 prevents HDM-induced asthma by inhibiting B-cell-derived IL-10 production. Thus, targeting the Bcl-3/IL-10 axis to inhibit allergic sensitization is a promising approach for treating allergic asthma. IL-10 is released rapidly from lung plasma cells under Bcl-3-Blimp-1-Bcl-6 regulation upon house dust mite exposure and amplifies lung epithelial cell (EC)-derived CCL-20 production and subsequent dendritic cell (DC) recruitment to promote allergic sensitization in asthma.
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Affiliation(s)
- Guojun Qian
- Affiliated Cancer Hospital/Institute and GMU-GIBH Joint School of Life Sciences of Guangzhou Medical University, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, 511436, Guangzhou, China.
- Key Laboratory of Anesthesiology (Shanghai Jiao Tong University), Ministry of Education, 200001, Shanghai, China.
| | - Wenxia Jiang
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 200031, Shanghai, China
| | - Donglin Sun
- Affiliated Cancer Hospital/Institute and GMU-GIBH Joint School of Life Sciences of Guangzhou Medical University, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, 511436, Guangzhou, China
| | - Zhun Sun
- Affiliated Cancer Hospital/Institute and GMU-GIBH Joint School of Life Sciences of Guangzhou Medical University, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, 511436, Guangzhou, China
| | - Anning Chen
- Affiliated Cancer Hospital/Institute and GMU-GIBH Joint School of Life Sciences of Guangzhou Medical University, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, 511436, Guangzhou, China
| | - Hongwei Fang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, 200032, Shanghai, China
| | - Jingyao Wang
- Affiliated Cancer Hospital/Institute and GMU-GIBH Joint School of Life Sciences of Guangzhou Medical University, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, 511436, Guangzhou, China
| | - Yongzhong Liu
- Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 200032, Shanghai, China
| | - Zhinan Yin
- Zhuhai People's Hospital, Biomedical Translational Research Institute, Jinan University, 510632, Guangzhou, China
| | - Haiming Wei
- Institute of Immunology, University of Science and Technology of China, 230000, Hefei, China
| | - Hao Fang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, 200032, Shanghai, China.
- Department of Anesthesiology, Minhang Hospital, Fudan University, 201100, Shanghai, China.
| | - Xiaoren Zhang
- Affiliated Cancer Hospital/Institute and GMU-GIBH Joint School of Life Sciences of Guangzhou Medical University, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, State Key Laboratory of Respiratory Disease, 511436, Guangzhou, China.
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, 200031, Shanghai, China.
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10
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Shah T, Wang Y, Wang Y, Li Q, Zhou J, Hou Y, Wang B, Xia X. A Comparative Analysis of the Stomach, Gut, and Lung Microbiomes in Rattus norvegicus. Microorganisms 2023; 11:2359. [PMID: 37764203 PMCID: PMC10534326 DOI: 10.3390/microorganisms11092359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/23/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
Urban rats serve as reservoirs for several zoonotic pathogens that seriously endanger public health, destroy stored food, and damage infrastructure due to their close interaction with humans and domestic animals. Here, we characterize the core microbiomes of R. norvegicus's stomach, gut, and lung using 16S rRNA next-generation Illumina HiSeq sequencing. The USEARCH software (v11) assigned the dataset to operational taxonomic units (OTUs). The alpha diversity index was calculated using QIIME1, while the beta diversity index was determined using the Bray-Curtis and Euclidean distances between groups. Principal component analyses visualized variation across samples based on the OTU information using the R package. Linear discriminant analysis, effect sizes (LEfSe), and phylogenetic investigation were used to identify differentially abundant taxa among groups. We reported an abundance of microbiota in the stomach, and they shared some of them with the gut and lung microbiota. A close look at the microbial family level reveals abundant Lactobacillaceae and Bifidobacteriaceae in the stomach, whereas Lactobacillaceae and Erysipelotrichaceae were more abundant in the gut; in contrast, Alcaligenaceae were abundant in the lungs. At the species level, some beneficial bacteria, particularly Lactobacillus reuteri and Lactobacillus johnsonii, and some potential pathogens, such as Bordetella hinzii, Streptococcus parauberis, Porphyromonas pogonae, Clostridium perfringens, etc., were identified in stomach, gut, and lung samples. Moreover, the alpha and beta diversity indexes revealed significant differences between the groups. Further analysis revealed abundant differential taxonomic biomarkers, i.e., increased Prevotellaceae and Clostridia in the lungs, whereas Campylobacteria and Lachnospirales were richest in the stomachs. In conclusion, we identified many beneficial, opportunistic, and highly pathogenic bacteria, confirming the importance of urban rats for public health. This study recommends a routine survey program to monitor rodent distribution and the pathogens they carry and transmit to humans and other domestic mammals.
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Affiliation(s)
- Taif Shah
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (T.S.)
| | - Yuhan Wang
- Department of Biodiversity Conservation, Southwest Forestry University, Kunming 650500, China
- Research Institute of Forest Protection, Yunnan Academy of Forestry and Grassland, Kunming 650500, China
| | - Yixuan Wang
- Research Institute of Forest Protection, Yunnan Academy of Forestry and Grassland, Kunming 650500, China
| | - Qian Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (T.S.)
| | - Jiuxuan Zhou
- Research Institute of Forest Protection, Yunnan Academy of Forestry and Grassland, Kunming 650500, China
| | - Yutong Hou
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (T.S.)
| | - Binghui Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (T.S.)
| | - Xueshan Xia
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (T.S.)
- School of Public Health, Kunming Medical University, Kunming 650500, China
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11
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Du B, Fu Y, Han Y, Sun Q, Xu J, Yang Y, Rong R. The lung-gut crosstalk in respiratory and inflammatory bowel disease. Front Cell Infect Microbiol 2023; 13:1218565. [PMID: 37680747 PMCID: PMC10482113 DOI: 10.3389/fcimb.2023.1218565] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 07/28/2023] [Indexed: 09/09/2023] Open
Abstract
Both lung and gut belong to the common mucosal immune system (CMIS), with huge surface areas exposed to the external environment. They are the main defense organs against the invasion of pathogens and play a key role in innate and adaptive immunity. Recently, more and more evidence showed that stimulation of one organ can affect the other, as exemplified by intestinal complications during respiratory disease and vice versa, which is called lung-gut crosstalk. Intestinal microbiota plays an important role in respiratory and intestinal diseases. It is known that intestinal microbial imbalance is related to inflammatory bowel disease (IBD), this imbalance could impact the integrity of the intestinal epithelial barrier and leads to the persistence of inflammation, however, gut microbial disturbances have also been observed in respiratory diseases such as asthma, allergy, chronic obstructive pulmonary disease (COPD), and respiratory infection. It is not fully clarified how these disorders happened. In this review, we summarized the latest examples and possible mechanisms of lung-gut crosstalk in respiratory disease and IBD and discussed the strategy of shaping intestinal flora to treat respiratory diseases.
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Affiliation(s)
- Baoxiang Du
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yan Fu
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuxiu Han
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Qihui Sun
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jinke Xu
- Shandong Center for Disease Control and Prevention, Jinan, China
| | - Yong Yang
- Shandong Antiviral Engineering Research Center of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Rong Rong
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, China
- Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan, China
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12
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Cheng X, Jiang W, Chen Y, Zou B, Wang Z, Gan L, Xiao Z, Li C, Yu CY, Lu Y, Han Z, Zeng J, Gu J, Chu T, Fu M, Chu Y, Zhang W, Tang J, Lu M. Acyloxyacyl hydrolase promotes pulmonary defense by preventing alveolar macrophage tolerance. PLoS Pathog 2023; 19:e1011556. [PMID: 37498977 PMCID: PMC10409266 DOI: 10.1371/journal.ppat.1011556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 08/08/2023] [Accepted: 07/13/2023] [Indexed: 07/29/2023] Open
Abstract
Although alveolar macrophages (AMs) play important roles in preventing and eliminating pulmonary infections, little is known about their regulation in healthy animals. Since exposure to LPS often renders cells hyporesponsive to subsequent LPS exposures ("tolerant"), we tested the hypothesis that LPS produced in the intestine reaches the lungs and stimulates AMs, rendering them tolerant. We found that resting AMs were more likely to be tolerant in mice lacking acyloxyacyl hydrolase (AOAH), the host lipase that degrades and inactivates LPS; isolated Aoah-/- AMs were less responsive to LPS stimulation and less phagocytic than were Aoah+/+ AMs. Upon innate stimulation in the airways, Aoah-/- mice had reduced epithelium- and macrophage-derived chemokine/cytokine production. Aoah-/- mice also developed greater and more prolonged loss of body weight and higher bacterial burdens after pulmonary challenge with Pseudomonas aeruginosa than did wildtype mice. We also found that bloodborne or intrarectally-administered LPS desensitized ("tolerized") AMs while antimicrobial drug treatment that reduced intestinal commensal Gram-negative bacterial abundance largely restored the innate responsiveness of Aoah-/- AMs. Confirming the role of LPS stimulation, the absence of TLR4 prevented Aoah-/- AM tolerance. We conclude that commensal LPSs may stimulate and desensitize (tolerize) alveolar macrophages in a TLR4-dependent manner and compromise pulmonary immunity. By inactivating LPS in the intestine, AOAH promotes antibacterial host defenses in the lung.
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Affiliation(s)
- Xiaofang Cheng
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Wei Jiang
- Department of Rheumatology and Immunology, the Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Yeying Chen
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Benkun Zou
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Zhiyan Wang
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Lu Gan
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Zeling Xiao
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Changshun Li
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Cheng-Yun Yu
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Yimeng Lu
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Zeyao Han
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Jiashun Zeng
- Department of Rheumatology and Immunology, the Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jie Gu
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tianqing Chu
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Mingsheng Fu
- Department of Gastroenterology, Shanghai Fifth People’s Hospital, Fudan University, Shanghai, China
| | - Yiwei Chu
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
- Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Shanghai, China
| | - Wenhong Zhang
- Shanghai Huashen Institute of Microbes and Infections, Shanghai, China
| | - Jianguo Tang
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Mingfang Lu
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People’s Hospital, Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
- Innovative Center for New Drug Development of Immune Inflammatory Diseases, Ministry of Education, Shanghai, China
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13
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Zhong Y, Huang T, Huang J, Quan J, Su G, Xiong Z, Lv Y, Li S, Lai X, Xiang Y, Wang Q, Luo L, Gao X, Shao Y, Tang J, Lai T. The HDAC10 instructs macrophage M2 program via deacetylation of STAT3 and promotes allergic airway inflammation. Theranostics 2023; 13:3568-3581. [PMID: 37441601 PMCID: PMC10334828 DOI: 10.7150/thno.82535] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 06/10/2023] [Indexed: 07/15/2023] Open
Abstract
Background: Perturbation of macrophage homeostasis is one of the key mechanisms of airway inflammation in asthma. However, the exact mechanisms remain poorly understood. Objectives: We sought to examine the role of histone deacetylase (HDAC) 10 as an epigenetic regulator that governs macrophage M2 program and promotes airway inflammation in asthma, and to elucidate the underlying mechanisms. Methods: Peripheral blood and airway biopsies were obtained from healthy individuals and asthmatic patients. Asthma was induced by exposure to allergen in mice with myeloid-specific deletion of Hdac10 (Hdac10fl/fl-LysMCre) mice. HDAC10 inhibitor Salvianolic acid B (SAB), STAT3 selective agonist Colivelin, and the specific PI3K/Akt activator 1,3-Dicaffeoylquinic acid (DA) were also used in asthmatic mice. For cell studies, THP1 cells, primary mouse bone marrow derived macrophage (BMDMs) were used and related signaling pathways was investigated. Results: HDAC10 expression was highly expressed by macrophages and promoted M2 macrophage activation and airway inflammation in asthmatic patients and mice. Hdac10fl/fl-LysMCre mice were protected from airway inflammation in experimental asthma model. Hdac10 deficiency significantly attenuated STAT3 expression and decreased M2 macrophage polarization following allergen exposure. Mechanistically, HDAC10 directly binds STAT3 for deacetylation in macrophages, by which it promotes STAT3 expression and activates the macrophage M2 program. Importantly, we identified SAB as a HDAC10 inhibitor that had protective effects against airway inflammation in mice. Conclusions: Our results revealed that HDAC10-STAT3 interaction governs macrophage polarization to promote airway inflammation in asthma, implicating HDAC10 as a therapeutic target.
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Affiliation(s)
- Yu Zhong
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Tong Huang
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Jiewen Huang
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Jingyun Quan
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Guomei Su
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Zhilin Xiong
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Yingying Lv
- Department of Respiratory and Critical Care Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523121, China
| | - Shihai Li
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Xianwen Lai
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Yuanyuan Xiang
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Qu Wang
- The Marine Biomedical Research Institute, Guangdong Medical University; The Marine Biomedical Research Institute of Guangdong Zhanjiang, China
| | - Lianxiang Luo
- The Marine Biomedical Research Institute, Guangdong Medical University; The Marine Biomedical Research Institute of Guangdong Zhanjiang, China
| | - Xiao Gao
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Yiming Shao
- The Intensive Care Unit, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523121, China
| | - Jing Tang
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Tianwen Lai
- Institute of Respiratory Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
- Department of Respiratory and Critical Care Medicine, The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523121, China
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14
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Meng Y, Mao Y, Tang Z, Qiu X, Bajinka O, Tan Y, Song Z. Crosstalk between the lung microbiome and lung cancer. Microb Pathog 2023; 178:106062. [PMID: 36914054 DOI: 10.1016/j.micpath.2023.106062] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 02/18/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023]
Abstract
The human microbiome is a complex ecosystem that mediates interaction between the human host and the environment. All of the human body is colonized by microorganisms. The lung as an organ used to be considered sterile. Recently, however, there has been a growing number of reports with evidence that the lungs are also in a state of carrying bacteria. The pulmonary microbiome is associated with many lung diseases and is increasingly reported in current studies. These include; chronic obstructive pulmonary disease (COPD), asthma, acute chronic respiratory infections, and cancers. These lung diseases are associated with reduced diversity and dysbiosis. It directly or indirectly affects the occurrence and development of lung cancer. Very few microbes directly cause cancer, while many are complicit in cancer growth, usually working through the host's immune system. This review focuses on the correlation between lung microbiota and lung cancer, and investigates the mechanism of action of lung microorganisms on lung cancer, which will provide new and reliable treatments and diagnosis of lung cancer in the future.
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Affiliation(s)
- Yuting Meng
- Department of Medical Microbiology, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Yu Mao
- Department of Medical Microbiology, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Zhongxiang Tang
- Department of Medical Microbiology, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Xiangjie Qiu
- Department of Medical Microbiology, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Ousman Bajinka
- Department of Medical Microbiology, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China
| | - Yurong Tan
- Department of Medical Microbiology, Xiangya School of Medicine, Central South University, Changsha, 410078, Hunan, China.
| | - Zhi Song
- Department of General Surgery, the third Xiangya Hospital, Central South University, Changsha, 410000, Hunan, China.
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15
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Liu KY, Gao Y, Xiao W, Fu J, Huang S, Han X, Hsu SH, Xiao X, Huang SK, Zhou Y. Multidimensional Analysis of Lung Lymph Nodes in a Mouse Model of Allergic Lung Inflammation following PM2.5 and Indeno[1,2,3- cd]pyrene Exposure. ENVIRONMENTAL HEALTH PERSPECTIVES 2023; 131:37014. [PMID: 36975775 PMCID: PMC10044348 DOI: 10.1289/ehp11580] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 01/23/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Ambient particulate matter with an aerodynamic diameter of ≤2.5 μm (PM2.5) is suggested to act as an adjuvant for allergen-mediated sensitization and recent evidence suggests the importance of T follicular helper (Tfh) cells in allergic diseases. However, the impact of PM2.5 exposure and its absorbed polycyclic aromatic hydrocarbon (PAHs) on Tfh cells and humoral immunity remains unknown. OBJECTIVES We aimed to explore the impact of environmental PM2.5 and indeno[1,2,3-cd]pyrene (IP), a prominent PAH, as a model, on Tfh cells and the subsequent pulmonary allergic responses. METHODS PM2.5- or IP-mediated remodeling of cellular composition in lung lymph nodes (LNs) was determined by mass cytometry in a house dust mite (HDM)-induced mouse allergic lung inflammation model. The differentiation and function of Tfh cells in vitro were analyzed by flow cytometry, quantitative reverse transcription polymerase chain reaction, enzyme-linked immunosorbent assay, chromatin immunoprecipitation, immunoprecipitation, and western blot analyses. RESULTS Mice exposed to PM2.5 during the HDM sensitization period demonstrated immune cell population shifts in lung LNs as compared with those sensitized with HDM alone, with a greater number of differentiated Tfh2 cells, enhanced allergen-induced immunoglobulin E (IgE) response and pulmonary inflammation. Similarly enhanced phenotypes were also found in mice exposed to IP and sensitized with HDM. Further, IP administration was found to induce interleukin-21 (Il21) and Il4 expression and enhance Tfh2 cell differentiation in vitro, a finding which was abrogated in aryl hydrocarbon receptor (AhR)-deficient CD4+ T cells. Moreover, we showed that IP exposure increased the interaction of AhR and cellular musculoaponeurotic fibrosarcoma (c-Maf) and its occupancy on the Il21 and Il4 promoters in differentiated Tfh2 cells. DISCUSSION These findings suggest that the PM2.5 (IP)-AhR-c-Maf axis in Tfh2 cells was important in allergen sensitization and lung inflammation, thus adding a new dimension in the understanding of Tfh2 cell differentiation and function and providing a basis for establishing the environment-disease causal relationship. https://doi.org/10.1289/EHP11580.
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Affiliation(s)
- Kwei-Yan Liu
- Department of Respirology & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Yajing Gao
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Wenfeng Xiao
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Jinrong Fu
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- Department of General Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Saihua Huang
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Xiao Han
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
| | - Shih-Hsien Hsu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Xiaojun Xiao
- Institute of Allergy and Immunology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Shau-Ku Huang
- Department of Respirology & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
- Institute of Allergy and Immunology, School of Medicine, Shenzhen University, Shenzhen, China
- National Institute of Environmental Health Sciences, National Health Research Institutes, Taiwan
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Yufeng Zhou
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
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16
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Wiscovitch-Russo R, Taal AM, Kuelbs C, Oldfield LM, Ramar M, Singh H, Fedulov AV, Gonzalez-Juarbe N. Gut and lung microbiome profiles in pregnant mice. Front Microbiol 2022; 13:946779. [PMID: 36578567 PMCID: PMC9791091 DOI: 10.3389/fmicb.2022.946779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 11/18/2022] [Indexed: 12/14/2022] Open
Abstract
In recent years, microbiome research has expanded from the gastrointestinal tract to other host sites previously thought to be abacterial such as the lungs. Yet, the effects of pregnancy in the lung and gut microbiome remains unclear. Here we examined the changes in the gut and lung microbiome in mice at 14 days of gestation. Lung tissue and stool samples were collected from pregnant and non-pregnant female BALB/c mice, DNA was isolated, amplified, and bacterial specific V4 16S rRNA gene was sequenced. Using an in-house bioinformatic pipeline we assessed the microbial composition of each organ using stool and lung tissue samples. The stool data showed that Lachnospiraceae and Lactobacillaceae were more abundant in the pregnant mice. Likewise, Lactobacillaceae were dominant in the lungs of pregnant mice. However, Streptococcaceae were dominant in the lungs of non-pregnant mice with a low microbial abundance in the pregnant mice. A permutation test showed that pregnancy significantly contributes to the variance in both the lung and stool microbiome. At the same time, we estimate that 49% of the total detected operational taxonomic units were shared between the stool and lung data. After removing common stool-associated bacteria from the lung dataset, no microbial differential abundance was detected between the pregnant and non-pregnant lung microbial community. Thus, pregnancy contributes to variance to the lung and stool microbiome but not in the unique lung microbiota.
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Affiliation(s)
| | - Aji Mary Taal
- J. Craig Venter Institute, Rockville, MD, United States
| | - Claire Kuelbs
- J. Craig Venter Institute, Rockville, MD, United States
| | | | - MohanKumar Ramar
- Department of Surgery, Division of Surgical Research, Rhode Island Hospital, The Warren Alpert Medical School of Brown University, Providence, RI, United States
| | | | - Alexey V. Fedulov
- Department of Surgery, Division of Surgical Research, Rhode Island Hospital, The Warren Alpert Medical School of Brown University, Providence, RI, United States
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17
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Wang H, Hu J, Wu J, Ji P, Shang A, Li D. The Function and Molecular Mechanism of Commensal Microbiome in Promoting Malignant Progression of Lung Cancer. Cancers (Basel) 2022; 14:5394. [PMID: 36358812 PMCID: PMC9658664 DOI: 10.3390/cancers14215394] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/29/2022] [Accepted: 10/30/2022] [Indexed: 02/03/2024] Open
Abstract
The human commensal microbiome existing in an internal environment is relatively consistent with that of the host. The presence of bacterial dysbiosis, on the other hand, promptly results in the termination of this symbiotic association. The altered microbial structure in the lung may be responsible for the development of lung cancer by controlling the host's inflammatory response and influencing a variety of immunological pathways. More and more studies have pointed to the fact that the commensal microbiota plays a vital role in both the development of tumors and the body's response to lung cancer treatment. Microbiome dysbiosis, genotoxicity, virulence effect, and epigenetic dysregulations are some of the potential mechanisms that may lie behind the process of tumorigenesis that is mediated by microbiome. Other potential mechanisms include regulating host immune activity through a variety of pathogenic factors, dysregulating host metabolism as a result of microbiome alterations, and microbiome dysbiosis. In this historical overview, we go through some of the more recent mechanistic discoveries into the biological processes that are involved in lung cancer that are caused by bacteria. Without a question, obtaining a greater knowledge of the dynamic link between the lung microbiome and lung cancer has the potential to inspire the development of innovative early detection and customized treatment methods for lung cancer.
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Affiliation(s)
| | | | | | | | - Anquan Shang
- Department of Laboratory Medicine, Tongji Hospital of Tongji University School of Medicine, 389 Xincun Road, Shanghai 200065, China
| | - Dong Li
- Department of Laboratory Medicine, Tongji Hospital of Tongji University School of Medicine, 389 Xincun Road, Shanghai 200065, China
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18
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Xia M, Xu F, Ni H, Wang Q, Zhang R, Lou Y, Zhou J. Neutrophil activation and NETosis are the predominant drivers of airway inflammation in an OVA/CFA/LPS induced murine model. Respir Res 2022; 23:289. [PMID: 36271366 PMCID: PMC9587569 DOI: 10.1186/s12931-022-02209-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/03/2022] [Indexed: 12/03/2022] Open
Abstract
Background Asthma is one of the most common chronic diseases that affects more than 300 million people worldwide. Though most asthma can be well controlled, individuals with severe asthma experience recurrent exacerbations and impose a substantial economic burden on healthcare system. Neutrophil inflammation often occurs in patients with severe asthma who have poor response to glucocorticoids, increasing the difficulty of clinical treatment. Methods We established several neutrophil-dominated allergic asthma mouse models, and analyzed the airway hyperresponsiveness, airway inflammation and lung pathological changes. Neutrophil extracellular traps (NETs) formation was analyzed using confocal microscopy and western blot. Results We found that the ovalbumin (OVA)/complete Freund’s adjuvant (CFA)/low-dose lipopolysaccharide (LPS)-induced mouse model best recapitulated the complex alterations in the airways of human severe asthmatic patients. We also observed OVA/CFA/LPS-exposed mice produced large quantities of neutrophil extracellular traps (NETs) in lung tissue and bone marrow neutrophils. Furthermore, we found that reducing the production of NETs or increasing the degradation of NETs can reduce airway inflammation and airway hyperresponsiveness. Conclusion Our findings identify a novel mouse model of neutrophilic asthma. We have also identified NETs play a significant role in neutrophilic asthma models and contribute to neutrophilic asthma pathogenesis. NETs may serve as a promising therapeutic target for neutrophilic asthma. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-02209-0.
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Affiliation(s)
- Mengling Xia
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, 310003, Hangzhou, China
| | - Fei Xu
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, 310003, Hangzhou, China
| | - Hangqi Ni
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, 310003, Hangzhou, China
| | - Qing Wang
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, 310003, Hangzhou, China
| | - Ruhui Zhang
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, 310003, Hangzhou, China
| | - Yafang Lou
- Department of Respiratory Medicine, Hangzhou Hospital of Traditional Chinese Medicine, No. 453, Tiyuchang Road, 310013, Hangzhou, China.
| | - Jianying Zhou
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, 310003, Hangzhou, China.
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19
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Fang H, Sun Z, Chen Z, Chen A, Sun D, Kong Y, Fang H, Qian G. Bioinformatics and systems-biology analysis to determine the effects of Coronavirus disease 2019 on patients with allergic asthma. Front Immunol 2022; 13:988479. [PMID: 36211429 PMCID: PMC9537444 DOI: 10.3389/fimmu.2022.988479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/30/2022] [Indexed: 12/05/2022] Open
Abstract
Background The coronavirus disease (COVID-19) pandemic has posed a significant challenge for global health systems. Increasing evidence shows that asthma phenotypes and comorbidities are major risk factors for COVID-19 symptom severity. However, the molecular mechanisms underlying the association between COVID-19 and asthma are poorly understood. Therefore, we conducted bioinformatics and systems biology analysis to identify common pathways and molecular biomarkers in patients with COVID-19 and asthma, as well as potential molecular mechanisms and candidate drugs for treating patients with both COVID-19 and asthma. Methods Two sets of differentially expressed genes (DEGs) from the GSE171110 and GSE143192 datasets were intersected to identify common hub genes, shared pathways, and candidate drugs. In addition, murine models were utilized to explore the expression levels and associations of the hub genes in asthma and lung inflammation/injury. Results We discovered 157 common DEGs between the asthma and COVID-19 datasets. A protein–protein-interaction network was built using various combinatorial statistical approaches and bioinformatics tools, which revealed several hub genes and critical modules. Six of the hub genes were markedly elevated in murine asthmatic lungs and were positively associated with IL-5, IL-13 and MUC5AC, which are the key mediators of allergic asthma. Gene Ontology and pathway analysis revealed common associations between asthma and COVID-19 progression. Finally, we identified transcription factor–gene interactions, DEG–microRNA coregulatory networks, and potential drug and chemical-compound interactions using the hub genes. Conclusion We identified the top 15 hub genes that can be used as novel biomarkers of COVID-19 and asthma and discovered several promising candidate drugs that might be helpful for treating patients with COVID-19 and asthma.
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Affiliation(s)
- Hongwei Fang
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhun Sun
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Zhouyi Chen
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Anning Chen
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Donglin Sun
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Yan Kong
- Department of Anesthesiology (High-Tech Branch), The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Hao Fang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of Anesthesiology, Minhang Hospital, Fudan University, Shanghai, China
- *Correspondence: Guojun Qian, ; Hao Fang,
| | - Guojun Qian
- Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
- *Correspondence: Guojun Qian, ; Hao Fang,
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20
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Dysregulation of NK and CD8+T Cells by the Microbiota Promotes the Progression of Lung Cancer. J Immunol Res 2022; 2022:7057089. [PMID: 36033391 PMCID: PMC9410859 DOI: 10.1155/2022/7057089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/14/2022] [Indexed: 12/04/2022] Open
Abstract
The commensal microbiota is involved in maintaining local pulmonary immune homeostasis under physiological conditions. Alterations in the amount and dominant species of the microbiota can reshape the immune response of the body and lead to a variety of lung diseases, including cancer. The precise mechanisms by which microbiota regulate immune cells during the progression of lung cancer remain obscure. In this study, using a Kras-mutated-driven spontaneous lung cancer mouse model, we found that the depletion of microbiota can alleviate lung lesions in Kras-mutated mice at different stages of tumour development. Long-term antibiotic treatment significantly reduced the number NK cells and IFN-γ secretion and CD8+T cells in the lungs of wild-type (WT) mice, suggesting that the microbiota plays an important role in maintaining homeostasis of NK cells and CD8+T cells under normal conditions. However, in Kras-mutated mice, the altered pulmonary immune microenvironment resulted in a microbiota disorder and in the loss of the ability to regulate the immune responses of NK cells and CD8+T cells, thus promoting the occurrence and development of lung cancer. Further mechanistic studies have shown that the CXCL9-CXCR3 axis participated in the local recruitment of NK cells and CD8+T cells by the microbiota into lung tissues in Kras-mutated mice. Our findings reveal the role of the microbiota in reshaping tumour-related immune responses involving NK cells and CD8+T cells and shed light on the clinical immunotherapy of lung cancer.
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21
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Bulanda E, Wypych TP. Bypassing the Gut-Lung Axis via Microbial Metabolites: Implications for Chronic Respiratory Diseases. Front Microbiol 2022; 13:857418. [PMID: 35591998 PMCID: PMC9113535 DOI: 10.3389/fmicb.2022.857418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/08/2022] [Indexed: 12/18/2022] Open
Abstract
The gut microbiome engages in constant interactions with the immune system, laying down the fundamentals of what we perceive as health or disease. The gut microbiota acts locally in the intestines and distally in other organs, such as the lungs. This influence (termed “the gut–lung axis”) constitutes the basis for harnessing the microbiome to prevent or treat chronic respiratory diseases. Within this context, two approaches gained the most attention: the diet interventions (which shape the microbiome) and the probiotics (which exert beneficial effects directly on the host). Microbial products, which constitute a means of communication along the gut–lung axis, are only now emerging as a new class of potential therapeutics. Here, we provide a comprehensive overview of microbial products active in the airways, describe the immunological mechanisms they trigger, and discuss their clinical advantages and pitfalls.
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Affiliation(s)
- Edyta Bulanda
- Laboratory of Host-Microbiota Interactions, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Tomasz P Wypych
- Laboratory of Host-Microbiota Interactions, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
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22
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Mindt BC, DiGiandomenico A. Microbiome Modulation as a Novel Strategy to Treat and Prevent Respiratory Infections. Antibiotics (Basel) 2022; 11:antibiotics11040474. [PMID: 35453224 PMCID: PMC9029693 DOI: 10.3390/antibiotics11040474] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 02/06/2023] Open
Abstract
Acute and chronic lower airway disease still represent a major cause of morbidity and mortality on a global scale. With the steady rise of multidrug-resistant respiratory pathogens, such as Pseudomonas aeruginosa and Klebsiella pneumoniae, we are rapidly approaching the advent of a post-antibiotic era. In addition, potentially detrimental novel variants of respiratory viruses continuously emerge with the most prominent recent example being severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). To this end, alternative preventive and therapeutic intervention strategies will be critical to combat airway infections in the future. Chronic respiratory diseases are associated with alterations in the lung and gut microbiome, which is thought to contribute to disease progression and increased susceptibility to infection with respiratory pathogens. In this review we will focus on how modulating and harnessing the microbiome may pose a novel strategy to prevent and treat pulmonary infections as well as chronic respiratory disease.
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23
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Xiang C, Fan C, Lu Q, Liu M, Lu H, Feng C, Wu Y, Wu B, Li H, Tang W. Interfering with alternatively activated macrophages by CSF-1R inhibition exerts therapeutic capacity on allergic airway inflammation. Biochem Pharmacol 2022; 198:114952. [PMID: 35149050 DOI: 10.1016/j.bcp.2022.114952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/04/2022] [Accepted: 02/04/2022] [Indexed: 11/02/2022]
Abstract
PURPOSE Allergic asthma is a chronic inflammatory disorder with airway hyperresponsiveness and tissue remodeling as the main pathological characteristics. The etiology of asthma is relatively complicated, involving genetic susceptibility, epigenetic regulation, environmental factors, and immune imbalance. Colony stimulating factor 1 receptor (CSF-1R), highly expressed in myeloid monocytes, plays an important role in regulating inflammation. However, the pathological role of CSF-1R and the therapeutic effects of CSF-1R inhibitor in allergic airway inflammation remain indistinct. METHODS The house dust mite (HDM)-triggered allergic airway inflammation model was conducted to fully uncover the efficacies of CSF-1R inhibition, as illustrated by histopathological examinations, biochemical analysis, ELISA, RT-PCR, Western blotting assay, immunofluorescence, and flow cytometry. Furthermore, bone marrow-derived macrophages (BMDMs) were differentiated and polarized upon IL-4/IL-13 induction to clarify the underlying mechanisms of CSF-1R inhibition. RESULTS Herein, we presented that the expression of CSF-1R was increased in HDM-induced experimental asthma and inhibition of CSF-1R displayed dramatic effects on the disease severity of asthma, referring to suppressing the secretion of allergic mediators, dysfunction of airway epithelium, and infiltration of inflammatory cells. Furthermore, CSF-1R inhibitor could markedly restrain the polarization and expression of transcriptional factors of alternatively activated macrophages (AAMs) in the presence of IL-4/IL-13 and reduce the recruitment of CSF-1R-dominant macrophages, both in acute and chronic allergic airway inflammation model. CONCLUSION Collectively, our findings demonstrated the molecular pathological mechanism of CSF-1R in allergic airway diseases and suggested that targeting CSF-1R might be an alternative intervention strategy on the homeostasis of airway immune microenvironment in asthma.
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Affiliation(s)
- Caigui Xiang
- Laboratory of Anti-inflammation and Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; School of Pharmacy, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chen Fan
- Laboratory of Anti-inflammation and Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Qiukai Lu
- Laboratory of Anti-inflammation and Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; School of Pharmacy, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Moting Liu
- Laboratory of Anti-inflammation and Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; School of Pharmacy, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huimin Lu
- Laboratory of Anti-inflammation and Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; School of Pharmacy, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunlan Feng
- Laboratory of Anti-inflammation and Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yanwei Wu
- Laboratory of Anti-inflammation and Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Bing Wu
- Laboratory of Anti-inflammation and Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; School of Pharmacy, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Heng Li
- Laboratory of Anti-inflammation and Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Wei Tang
- Laboratory of Anti-inflammation and Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; School of Pharmacy, University of Chinese Academy of Sciences, Beijing 100049, China.
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24
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Wang Q, Wu Q. Knockdown of receptor interacting protein 140 (RIP140) alleviated lipopolysaccharide-induced inflammation, apoptosis and permeability in pulmonary microvascular endothelial cells by regulating C-terminal binding protein 2 (CTBP2). Bioengineered 2022; 13:3981-3992. [PMID: 35113002 PMCID: PMC8973626 DOI: 10.1080/21655979.2022.2031403] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The main pathological feature of acute lung injury (ALI) is pulmonary edema caused by increased permeability of pulmonary microvascular endothelial cells (PMVECs). LPS was has been confirmed to lead to cell damage and barrier dysfunction in PMVECs. Furthermore, receptor interacting protein 140 (RIP140) was discovered to be increased in LPS-induced human pulmonary microvascular endothelial cells (HPMECs), but the mechanism of RIP140 on LPS-induced HPMECs has not been investigated. In this study, an acute lung injury model was constructed in LPS-induced HPMECs. After RIP140 was downregulated, inflammation, apoptosis and cell permeability levels were detected by RT-qPCR, TUNEL staining and FITC-Dextran, respectively. Western blotting was used to detect the protein levels of related factors. The binding of RIP140 and C-terminal binding protein 2 (CTBP2) was predicted by database and verified by Co-IP. Subsequently, CTBP2 overexpression was transfected into cells and the above experiments were performed again. The results showed that inflammation, apoptosis and permeability levels of LPS-induced HPMECs were remarkably increased compared to the untreated control group. However, these levels were suppressed after RIP140 was silenced compared to the LPS-induced HPMECs group. Notably, the Co-IP study demonstrated that RIP140 and CTBP2 interacted with each other. Moreover, CTBP2 overexpression reversed the inhibitory effects of RIP140 silencing on LPS-induced inflammation, apoptosis and permeability levels in HPMECs. Together, the study found that interference of RIP140 could alleviate LPS-induced inflammation, apoptosis and permeability in HPMECs by regulating CTBP2.
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Affiliation(s)
- Qizheng Wang
- Department of Pediatrics, Huai'an Maternal and Child Health Care Hospital, Huai'an, Jiangu, China
| | - Qiong Wu
- Department of Pediatrics, The People's Hospital of China Three Gorges University (The First People's Hospital of Yichang), Yichang, Hubei, China
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25
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Chen ZY, Xiao HW, Dong JL, Li Y, Wang B, Fan SJ, Cui M. Gut Microbiota-Derived PGF2α Fights against Radiation-Induced Lung Toxicity through the MAPK/NF-κB Pathway. Antioxidants (Basel) 2021; 11:antiox11010065. [PMID: 35052569 PMCID: PMC8773112 DOI: 10.3390/antiox11010065] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/24/2021] [Accepted: 12/24/2021] [Indexed: 12/28/2022] Open
Abstract
Radiation pneumonia is a common and intractable side effect associated with radiotherapy for chest cancer and involves oxidative stress damage and inflammation, prematurely halting the remedy and reducing the life quality of patients. However, the therapeutic options for the complication have yielded disappointing results in clinical application. Here, we report an effective avenue for fighting against radiation pneumonia. Faecal microbiota transplantation (FMT) reduced radiation pneumonia, scavenged oxidative stress and improved lung function in mouse models. Local chest irradiation shifted the gut bacterial taxonomic proportions, which were preserved by FMT. The level of gut microbiota-derived PGF2α decreased following irradiation but increased after FMT. Experimental mice with PGF2α replenishment, via an oral route, exhibited accumulated PGF2α in faecal pellets, peripheral blood and lung tissues, resulting in the attenuation of inflammatory status of the lung and amelioration of lung respiratory function following local chest irradiation. PGF2α activated the FP/MAPK/NF-κB axis to promote cell proliferation and inhibit apoptosis with radiation challenge; silencing MAPK attenuated the protective effect of PGF2α on radiation-challenged lung cells. Together, our findings pave the way for the clinical treatment of radiotherapy-associated complications and underpin PGF2α as a gut microbiota-produced metabolite.
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Affiliation(s)
- Zhi-Yuan Chen
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300110, China; (Z.-Y.C.); (J.-L.D.); (Y.L.); (B.W.)
| | - Hui-Wen Xiao
- Department of Microbiology, College of Life Sciences, Nankai University, Tianjin 300071, China;
| | - Jia-Li Dong
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300110, China; (Z.-Y.C.); (J.-L.D.); (Y.L.); (B.W.)
| | - Yuan Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300110, China; (Z.-Y.C.); (J.-L.D.); (Y.L.); (B.W.)
| | - Bin Wang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300110, China; (Z.-Y.C.); (J.-L.D.); (Y.L.); (B.W.)
| | - Sai-Jun Fan
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300110, China; (Z.-Y.C.); (J.-L.D.); (Y.L.); (B.W.)
- Correspondence: (S.-J.F.); (M.C.)
| | - Ming Cui
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300110, China; (Z.-Y.C.); (J.-L.D.); (Y.L.); (B.W.)
- Correspondence: (S.-J.F.); (M.C.)
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26
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Zou B, Goodwin M, Saleem D, Jiang W, Tang J, Chu Y, Munford RS, Lu M. A highly conserved host lipase deacylates oxidized phospholipids and ameliorates acute lung injury in mice. eLife 2021; 10:70938. [PMID: 34783310 PMCID: PMC8594946 DOI: 10.7554/elife.70938] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 11/01/2021] [Indexed: 12/26/2022] Open
Abstract
Oxidized phospholipids have diverse biological activities, many of which can be pathological, yet how they are inactivated in vivo is not fully understood. Here, we present evidence that a highly conserved host lipase, acyloxyacyl hydrolase (AOAH), can play a significant role in reducing the pro-inflammatory activities of two prominent products of phospholipid oxidation, 1-palmitoyl-2-glutaryl-sn-glycero-3-phosphocholine and 1-palmitoyl-2-(5-oxovaleroyl)-sn-glycero-3-phosphocholine. AOAH removed the sn-2 and sn-1 acyl chains from both lipids and reduced their ability to induce macrophage inflammasome activation and cell death in vitro and acute lung injury in mice. In addition to transforming Gram-negative bacterial lipopolysaccharide from stimulus to inhibitor, its most studied activity, AOAH can inactivate these important danger-associated molecular pattern molecules and reduce tissue inflammation and injury.
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Affiliation(s)
- Benkun Zou
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences & Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Michael Goodwin
- Laboratory of Clinical Immunology and Microbiology, NIAID, NIH, Bethesda, United States
| | - Danial Saleem
- Laboratory of Clinical Immunology and Microbiology, NIAID, NIH, Bethesda, United States
| | - Wei Jiang
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences & Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Jianguo Tang
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
| | - Yiwei Chu
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences & Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Robert S Munford
- Laboratory of Clinical Immunology and Microbiology, NIAID, NIH, Bethesda, United States
| | - Mingfang Lu
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences & Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China.,Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
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27
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Sasaki E, Momose H, Furuhata K, Mizukami T, Hamaguchi I. Impact of injection buffer volume to perform bronchoalveolar lavage fluid collection for isolating alveolar macrophages to investigate fine particle-induced IL-1α secretion. J Immunotoxicol 2021; 18:163-172. [PMID: 34761701 DOI: 10.1080/1547691x.2021.1979699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
The importance of alveolar macrophages has been reported in many toxicology/immunology studies. Alveolar macrophages release interleukin (IL)-1α as a damage-associated molecular pattern (DAMP) when stimulated by fine particles. However, it is unclear whether cell isolation procedures affect ex vivo particle-induced responses in primary mouse alveolar macrophages (mAM). In this study, effects of injection buffer volume used to perform bronchoalveolar lavage fluid (BALF) collection to isolate mAM for use in ex vivo particle-induced responses were assessed. Among the mAM obtained from BALF collected using a 0.55 or 0.75 ml, but not a 1.0 ml buffer injection volume, decreased cell viability and IL-1α release were observed when cells were stimulated ex vivo with silica crystal or aluminum salt. Injected buffer composition did not affect the IL-1α release. On the other hand, IL-6 secretion induced by lipopolysaccharide (LPS) did not differ among mAM obtained from BALF collected using the different volumes. Expression levels of cell surface markers like CD11c, SiglecF, and CD64 did not differ among mAM obtained from BALF collected using the different injection buffer volumes. IL-1α release (and also necroptosis) induced by ex vivoparticle stimulation was suppressed by RIPK3 inhibitor or cytochalasin D co-treatment. Decreases in RIPK3 phosphorylation were noted in mAM obtained in BALF collected using the 1.0 ml injection volume compared with mAM obtained in BALF using 0.55 or 0.75 ml buffer. These observations illustrate that larger volumes of buffer used to collect BALF from mice can affect sensitivity of the isolated mAM to ex vivo particle-induced responses by inhibiting their functions.
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Affiliation(s)
- Eita Sasaki
- Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan
| | - Haruka Momose
- Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan
| | - Keiko Furuhata
- Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takuo Mizukami
- Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan
| | - Isao Hamaguchi
- Department of Safety Research on Blood and Biological Products, National Institute of Infectious Diseases, Tokyo, Japan
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28
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Mathieu E, Marquant Q, Descamps D, Riffault S, Saint-Criq V, Thomas M. Le poumon est sensible aux effets locaux et à distance des microbiotes. NUTR CLIN METAB 2021. [DOI: 10.1016/j.nupar.2021.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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29
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Wang Y, Wang J, Wang S, Cao Z, Gu D, Wang Y, Tian J, Yang Y. An efficient method based on an inhibitor-enzyme complex to screen an active compound against lipase from Toona sinensis. Food Funct 2021; 12:10806-10812. [PMID: 34617090 DOI: 10.1039/d1fo01542g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As a popular vegetable, Toona sinensis has a wide range of bioactivities including lipase inhibitory activity. In the present study, an efficient and rapid method using a ligand-enzyme complex was established for screening of an active compound against lipase from Toona sinensis. The ethyl acetate extract of Toona sinensis showed good lipase inhibitory activity. After incubation with lipase, one of the compounds in the extract decreased significantly while comparing the HPLC chromatograms before and after incubation, which indicated that it may be the active compound bound to lipase. Then, the compound was isolated using a Sephadex LH-20 column and identified as 1,2,3,4,6-penta-O-galloyl-β-D-glucose. The in vitro activity test showed that the compound had good inhibitory activity against lipase, and its IC50 value was 118.8 ± 1.53 μg mL-1. The kinetic experiments indicated that 1,2,3,4,6-penta-O-galloyl-β-D-glucose inhibited lipase through mixed competitive and non-competitive inhibitions. Further docking results showed that the target compound could bind to the active site of lipase stably through seven hydrogen bonds, resulting in a docking energy of -8.31 kcal mol-1. The proposed method can not only screen the lipase inhibitors from Toona sinensis quickly and effectively, but also provide an effective way for the rapid screening of active substances in natural food and plants.
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Affiliation(s)
- Yunxiao Wang
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan, Dalian 116034, China.
| | - Jifeng Wang
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan, Dalian 116034, China.
| | - Shunxin Wang
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan, Dalian 116034, China.
| | - Zengyuan Cao
- College of Marine Science and Environment, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China.
| | - Dongyu Gu
- College of Marine Science and Environment, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China.
| | - Yi Wang
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan, Dalian 116034, China.
| | - Jing Tian
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan, Dalian 116034, China.
| | - Yi Yang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, 1 Qinggongyuan, Dalian 116034, China.
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30
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Bai S, Wang W, Ye L, Fang L, Dong T, Zhang R, Wang X, Gao H, Shen B, Ding S. IL-17 stimulates neutrophils to release S100A8/A9 to promote lung epithelial cell apoptosis in Mycoplasma pneumoniae-induced pneumonia in children. Biomed Pharmacother 2021; 143:112184. [PMID: 34562768 DOI: 10.1016/j.biopha.2021.112184] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 11/15/2022] Open
Abstract
Mycoplasma pneumoniae-induced pneumonia (MPP) is a common cause of community-acquired respiratory tract infections, increasing risk of morbidity and mortality, in children. However, diagnosing early-stage MPP is difficult owing to the lack of good diagnostic methods. Here, we examined the protein profile of bronchoalveolar lavage fluid (BALF) and found that S100A8/A9 was highly expressed. Enzyme-linked immunosorbent assays used to assess protein levels in serum samples indicated that S100A8/A9 concentrations were also increased in serum obtained from children with MPP, with no change in S100A8/A9 levels in children with viral or bacterial pneumonia. In vitro, S100A8/A9 treatment significantly increased apoptosis in a human alveolar basal epithelial cell line (A549 cells). Bioinformatics analyses indicated that up-regulated S100A8/A9 proteins participated in the interleukin (IL)-17 signaling pathway. The origin of the increased S100A8/A9 was investigated in A549 cells and in neutrophils obtained from children with MPP. Treatment of neutrophils, but not of A549 cells, with IL-17A released S100A8/A9 into the culture medium. In summary, we demonstrated that S100A8/A9, possibly released from neutrophils, is a new potential biomarker for the clinical diagnosis of children MPP and involved in the development of this disease through enhancing apoptosis of alveolar basal epithelial cells.
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Affiliation(s)
- Suwen Bai
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China
| | - Wang Wang
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Li Ye
- Department of Neurology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, China
| | - Lulu Fang
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Tao Dong
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China
| | - Rong Zhang
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Xin Wang
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Huiwen Gao
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China
| | - Bing Shen
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China.
| | - Shenggang Ding
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China.
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31
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Feng J, Jiang W, Cheng X, Zou B, Varley AW, Liu T, Qian G, Zeng W, Tang J, Zhao Q, Chu Y, Wei Y, Li X, Munford RS, Lu M. A host lipase prevents lipopolysaccharide-induced foam cell formation. iScience 2021; 24:103004. [PMID: 34522852 PMCID: PMC8426562 DOI: 10.1016/j.isci.2021.103004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/14/2021] [Accepted: 08/15/2021] [Indexed: 01/04/2023] Open
Abstract
Although microbe-associated molecular pattern (MAMP) molecules can promote cholesterol accumulation in macrophages, the existence of a host-derived MAMP inactivation mechanism that prevents foam cell formation has not been described. Here, we tested the ability of acyloxyacyl hydrolase (AOAH), the host lipase that inactivates gram-negative bacterial lipopolysaccharides (LPSs), to prevent foam cell formation in mice. Following exposure to small intraperitoneal dose(s) of LPSs, Aoah -/- macrophages produced more low-density lipoprotein receptor and less apolipoprotein E and accumulated more cholesterol than did Aoah +/+ macrophages. The Aoah -/- macrophages also maintained several pro-inflammatory features. Using a perivascular collar placement model, we found that Aoah -/- mice developed more carotid artery foam cells than did Aoah +/+ mice after they had been fed a high fat, high cholesterol diet, and received small doses of LPSs. This is the first demonstration that an enzyme that inactivates a stimulatory MAMP in vivo can reduce cholesterol accumulation and inflammation in arterial macrophages.
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Affiliation(s)
- Jintao Feng
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Wei Jiang
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200040, China
| | - Xiaofang Cheng
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Benkun Zou
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Alan W. Varley
- Department of Internal Medicine, UT-Southwestern Medical Center at Dallas, Texas 75390, USA
| | - Ting Liu
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Guojun Qian
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Wenjiao Zeng
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Jianguo Tang
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200040, China
| | - Qiang Zhao
- Department of Cardiac Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200020, China
| | - Yiwei Chu
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Yuanyuan Wei
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Xiaobo Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Robert S. Munford
- Antibacterial Host Defense Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Mingfang Lu
- Department of Immunology, Key Laboratory of Medical Molecular Virology (MOE, NHC, CAMS), School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
- Department of Trauma-Emergency & Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai 200040, China
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Xie Z, Xiang C, Li X, Fan C, Chen T, Liu M, Ma Y, Bai F, Tang W, Hu Y. Discovery of Potent Antiallergic Agents Based on an o-Aminopyridinyl Alkynyl Scaffold. J Med Chem 2021; 64:13588-13603. [PMID: 34476950 DOI: 10.1021/acs.jmedchem.1c00976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Effective therapeutic agents are highly desired for immune-mediated allergic diseases. Herein, we report the design, synthesis, and structure-activity relationship of an o-aminopyridinyl alkyne series as novel orally bioavailable antiallergic agents, which was identified through phenotypic screening. Compound optimization yielded a highly potent compound 36, which effectively suppressed mast cell degranulation in a dose-dependent manner (IC50, 2.54 nM for RBL-2H3 cells; 48.28 nM for peritoneal mast cells (PMCs)) with a good therapeutic index. It also regulated the activation of FcεRI-mediated downstream signaling proteins in IgE/Ag-stimulated RBL-2H3 cells. In addition, 36 exhibited excellent in vivo pharmacokinetic properties and antiallergic efficacy in both passive systemic anaphylaxis (PSA) and house dust mite (HDM)-induced murine models of pulmonary allergic inflammation. Furthermore, preliminary analysis of the kinases profile identified Src-family kinases as potential targets for 36. Compound 36 may serve as a new valuable lead compound for future antiallergic drug discovery.
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Affiliation(s)
- Zhicheng Xie
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zu-Chong-Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Caigui Xiang
- Laboratory of Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Xin Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zu-Chong-Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Chen Fan
- Laboratory of Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Taiwen Chen
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zu-Chong-Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Moting Liu
- Laboratory of Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yanjie Ma
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zu-Chong-Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Fang Bai
- Laboratory of Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Wei Tang
- Laboratory of Immunopharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Youhong Hu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zu-Chong-Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Hangzhou 310024, China
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Zhang X, Sun Z, Guo S, Zhang J, Gu W, Chen Z, Huang L. E3 Ubiquitin Ligase March1 Facilitates OX40L Expression in Allergen-Stimulated Dendritic Cells Through Mediating the Ubiquitination of HDAC11. J Asthma Allergy 2021; 14:955-966. [PMID: 34385821 PMCID: PMC8352640 DOI: 10.2147/jaa.s318104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/16/2021] [Indexed: 12/15/2022] Open
Abstract
Background It was demonstrated that membrane-associated RING-CH 1 (March 1) might play an important role in the pathogenesis of asthma. Methods The levels of mRNA and protein were measured by qRT-PCR and Western blot, respectively. Immunofluorescence assay was used to determine whether March1 co-locates with HDAC11. Co-immunoprecipitation was performed to examine the combination of proteins. Moreover, luciferase assay was used to measure the promoter activity of genes. Results The mRNA and protein levels of both March1 and OX40 ligand (OX40L) were increased in the dendritic cells (DCs) from asthmatic children and asthmatic animals. Histone deacetylase 11 (HDAC11) protein was decreased in the DCs from asthmatic children and asthmatic model. Increasing of March1 or decreasing of March1 only affect the expression of HDAC11 in protein level. Besides, increasing of HDAC11 could inhibit OX40L expression, and decreasing of HDAC11 promoted OX40L expression in house dust mites (HDMs)-treated DCs. Increasing of HDAC11 notably reversed the promotion of March1 to OX40L expression. Our data further proved that March1 reduced the protein level of HDAC11 through inducing ubiquitination and degradation. HDAC11 combined with krüppel-like factor 4 (KLF4) to decrease the activity of OX40L gene promoter, thus to downregulate the level of OX40L. Conclusion Overall, our data showed that HDAC11 promoted KLF4-dependent OX40L decreasing. However, March1 promoted OX40L expression through enhancing the ubiquitination and degradation of HDAC11 and subsequent blocking the inhibition of HDAC11 to OX40L.
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Affiliation(s)
- Xinxing Zhang
- Department of Pediatric Pulmonology, Children's Hospital of Soochow University, Suzhou, Jiangsu, 215003, People's Republic of China
| | - Zhichao Sun
- Department of Pediatric Pulmonology, Children's Hospital of Soochow University, Suzhou, Jiangsu, 215003, People's Republic of China
| | - Suyu Guo
- Department of Pediatric Pulmonology, Children's Hospital of Soochow University, Suzhou, Jiangsu, 215003, People's Republic of China
| | - Jiahui Zhang
- Department of Pediatric Pulmonology, Children's Hospital of Soochow University, Suzhou, Jiangsu, 215003, People's Republic of China
| | - Wenjing Gu
- Department of Pediatric Pulmonology, Children's Hospital of Soochow University, Suzhou, Jiangsu, 215003, People's Republic of China
| | - Zhengrong Chen
- Department of Pediatric Pulmonology, Children's Hospital of Soochow University, Suzhou, Jiangsu, 215003, People's Republic of China
| | - Li Huang
- Department of Pediatric Pulmonology, Children's Hospital of Soochow University, Suzhou, Jiangsu, 215003, People's Republic of China
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Wang M, Li Q, Hou M, Chan LLY, Liu M, Ter SK, Dong T, Xia Y, Chotirmall SH, Fang M. Inactivation of common airborne antigens by perfluoroalkyl chemicals modulates early life allergic asthma. Proc Natl Acad Sci U S A 2021; 118:e2011957118. [PMID: 34099560 PMCID: PMC8214667 DOI: 10.1073/pnas.2011957118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Allergic asthma, driven by T helper 2 cell-mediated immune responses to common environmental antigens, remains the most common respiratory disease in children. Perfluorinated chemicals (PFCs) are environmental contaminants of great concern, because of their wide application, persistence in the environment, and bioaccumulation. PFCs associate with immunological disorders including asthma and attenuate immune responses to vaccines. The influence of PFCs on the immunological response to allergens during childhood is unknown. We report here that a major PFC, perfluorooctane sulfonate (PFOS), inactivates house dust mite (HDM) to dampen 5-wk-old, early weaned mice from developing HDM-induced allergic asthma. PFOS further attenuates the asthma protective effect of the microbial product lipopolysaccharide (LPS). We demonstrate that PFOS prevents desensitization of lung epithelia by LPS, thus abolishing the latter's protective effect. A close mechanistic study reveals that PFOS specifically binds the major HDM allergen Der p1 with high affinity as well as the lipid A moiety of LPS, leading to the inactivation of both antigens. Moreover, PFOS at physiological human (nanomolar) concentrations inactivates Der p1 from HDM and LPS in vitro, although higher doses did not cause further inactivation because of possible formation of PFOS aggregates. This PFOS-induced neutralization of LPS has been further validated in primary human cell models and extended to an in vivo bacterial infection mouse model. This study demonstrates that early life exposure of mice to a PFC blunts airway antigen bioactivity to modulate pulmonary inflammatory responses, which may adversely affect early pulmonary health.
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Affiliation(s)
- Mengjing Wang
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798 Singapore, Singapore
| | - Qianqian Li
- Key Laboratory of Environmental Nanotechnology and Health Effects, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 100085 Beijing, China
| | - Meifang Hou
- School of Ecological Technology and Engineering, Shanghai Institute of Technology, 201418 Shanghai, China
| | - Louisa L Y Chan
- Lee Kong Chian School of Medicine, Nanyang Technological University, 639798 Singapore, Singapore
| | - Meng Liu
- Lee Kong Chian School of Medicine, Nanyang Technological University, 639798 Singapore, Singapore
| | - Soo Kai Ter
- Lee Kong Chian School of Medicine, Nanyang Technological University, 639798 Singapore, Singapore
| | - Ting Dong
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798 Singapore, Singapore
| | - Yun Xia
- Lee Kong Chian School of Medicine, Nanyang Technological University, 639798 Singapore, Singapore
| | - Sanjay H Chotirmall
- Lee Kong Chian School of Medicine, Nanyang Technological University, 639798 Singapore, Singapore
| | - Mingliang Fang
- School of Civil and Environmental Engineering, Nanyang Technological University, 639798 Singapore, Singapore;
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35
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Myeloid-specific SIRT1 deletion exacerbates airway inflammatory response in a mouse model of allergic asthma. Aging (Albany NY) 2021; 13:15479-15490. [PMID: 34099590 PMCID: PMC8221322 DOI: 10.18632/aging.203104] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 05/13/2021] [Indexed: 12/13/2022]
Abstract
Sirtuin 1 (SIRT1) is a class III histone deacetylase that exerts an anti-inflammatory effect in airway diseases. Activated macrophages play an important role in asthma. However, the roles of SIRT1 on allergic airway inflammation in macrophages remain largely unexplored. In this study, we aimed to determine the roles of SIRT1 on allergic airway inflammation in macrophages. The effect of myeloid-specific SIRT1 deletion (Sirt1fl/fl-LysMcre) on airway inflammation was assessed by using in vivo models of asthma following allergen exposure and in vitro culture of primary bone marrow–derived macrophages (BMDMs) exposed to house dust mite (HDM). We observed that Sirt1fl/fl-LysMcre mice substantially enhanced airway inflammation and mucus production in response to allergen exposure. Expression of chemokine ligand (CXCL) 2, interleukin (IL)-1β, and tumor necrosis factor (TNF)-α were reduced in BMDMs with myeloid-specific deletion of Sirt1 after stimulation of HDM. Moreover, SIRT1 suppressed the inflammatory cytokines expression in BMDMs partially via the ERK/p38 MAPK pathways. Our study demonstrated that SIRT1 suppresses the allergic airway inflammation in macrophages, and suggested that activation of SIRT1 in macrophages may represent therapeutic strategy for asthma.
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36
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Epithelial exosomal contactin-1 promotes monocyte-derived dendritic cell-dominant T-cell responses in asthma. J Allergy Clin Immunol 2021; 148:1545-1558. [PMID: 33957164 DOI: 10.1016/j.jaci.2021.04.025] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 04/07/2021] [Accepted: 04/13/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Exosomes have emerged as a vital player in cell-cell communication; however, whether airway epithelial cell (AEC)-generated exosomes participate in asthma development remains unknown. OBJECTIVE Our aims were to characterize the AEC-secreted exosomes and the potentially functional protein(s) that may contribute to the proinflammatory effects of AEC exosomes in the dendritic cell (DC)-dominant airway allergic models and to confirm their clinical significance in patients with asthma. METHODS Mice were treated with exosomes derived from house dust mite (HDM)-stimulated AECs (HDM-AEC-EXOs) or monocyte-derived DCs primed by HDM and/or contactin-1 (CNTN1). The numbers of DCs in the lung were determined by flow cytometry. Proteomic analysis of purified HDM-AEC-EXOs was performed. CNTN1 small interfering RNA was designed to probe its role in airway allergy, and γ-secretase inhibitor was used to determine involvement of the Notch pathway. RESULTS HDM-AEC-EXOs facilitate the recruitment, proliferation, migration, and activation of monocyte-derived DCs in cell culture and in mice. CNTN1 in exosomes is a critical player in asthma pathology. RNA interference-mediated silencing and pharmaceutical inhibitors characterize Notch2 receptor as necessary for relaying the CNTN1 signal to activate TH2 cell/TH17 cell immune response. Studies of patients with asthma also support existence of the CNTN1-Notch2 axis that has been observed in cell and mouse models. CONCLUSION This study's findings reveal a novel role for CNTN1 in asthma pathogenesis mediated through exosome secretion, indicating a potential strategy for the treatment of allergic airway inflammation.
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37
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Wang Q, Guo A, Sheng M, Zhou H. The changes of respiratory microbiome between mild and severe asthma patients. Microbiol Immunol 2021; 65:204-213. [PMID: 33629787 DOI: 10.1111/1348-0421.12881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/21/2021] [Accepted: 02/23/2021] [Indexed: 12/01/2022]
Abstract
Due to the increased number of patients suffering from asthma, the mechanism of this disease has been subject to much attention from the public and finding a cure for this disease is urgent. A changed abundance of the microbiome has been proven to play an important role in the genesis and development of asthma. In this study, the abundance and the function of the microbiome were studied. It was found that there were significant changes in the components and the function of the microbiome when asthma changed from mild to severe. This study could help us to better understand the relationship between asthma and the respiratory microbiome.
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Affiliation(s)
- Qunzhi Wang
- Department of Respiratory and Critical Care Medicine, Jinhua People's Hospital, Zhejiang, China
| | - An Guo
- Department of Respiratory and Critical Care Medicine, Jinhua People's Hospital, Zhejiang, China
| | - Meiling Sheng
- Department of Respiratory and Critical Care Medicine, Jinhua People's Hospital, Zhejiang, China
| | - Hua Zhou
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, China
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Yuan F, Jiang L, Li Q, Sokulsky L, Wanyan Y, Wang L, Liu X, Zhou L, Tay HL, Zhang G, Yang M, Li F. A Selective α7 Nicotinic Acetylcholine Receptor Agonist, PNU-282987, Attenuates ILC2s Activation and Alternaria-Induced Airway Inflammation. Front Immunol 2021; 11:598165. [PMID: 33597946 PMCID: PMC7883686 DOI: 10.3389/fimmu.2020.598165] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 12/16/2020] [Indexed: 01/02/2023] Open
Abstract
Background The anti-inflammatory effect of an α7nAChR agonist, PNU-282987, has previously been explored in the context of inflammatory disease. However, the effects of PNU-282987 on type 2 innate lymphoid cells (ILC2s)-mediated allergic airway inflammation has not yet been established. Aims To determine the effects of PNU-282987 on the function of ILC2s in the context of IL-33– or Alternaria Alternata (AA)– induced airway inflammation. Methods PNU-282987 was administered to mice that received recombinant IL-33 or AA intranasal challenges. Lung histological analysis and flow cytometry were performed to determine airway inflammation and the infiltration and activation of ILC2s. The previously published α7nAChR agonist GTS-21 was employed as a comparable reagent. ILC2s were isolated from murine lung tissue and cultured in vitro in the presence of IL-33, IL-2, and IL-7 with/without either PNU-282987 or GTS-21. The expression of the transcription factors GATA3, IKK, and NF-κB were also determined. Results PNU-282987 and GTS-21 significantly reduced goblet cell hyperplasia in the airway, eosinophil infiltration, and ILC2s numbers in BALF, following IL-33 or AA challenge. In vitro IL-33 stimulation of isolated lung ILC2s showed a reduction of GATA3 and Ki67 in response to PNU-282987 or GTS-21 treatments. There was a significant reduction in IKK and NF-κB phosphorylation in the PNU-282987–treated group when compared to the GTS-21–treated ILC2s. Conclusion PNU-282987 inhibits ILC2-associated airway inflammation, where its effects were comparable to that of GTS-21.
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Affiliation(s)
- Fang Yuan
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China.,Department of Medical Laboratory, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lili Jiang
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Qianyang Li
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Leon Sokulsky
- Priority Research Centre for Healthy Lungs, Faculty of Health and Hunter Medical Research Institute, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Yuanyuan Wanyan
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Lingli Wang
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Xiaojie Liu
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Lujia Zhou
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Hock L Tay
- Priority Research Centre for Healthy Lungs, Faculty of Health and Hunter Medical Research Institute, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Guojun Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ming Yang
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China.,Priority Research Centre for Healthy Lungs, Faculty of Health and Hunter Medical Research Institute, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Fuguang Li
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
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Munford RS, Weiss JP, Lu M. Biochemical transformation of bacterial lipopolysaccharides by acyloxyacyl hydrolase reduces host injury and promotes recovery. J Biol Chem 2020; 295:17842-17851. [PMID: 33454018 DOI: 10.1074/jbc.rev120.015254] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/22/2020] [Indexed: 12/26/2022] Open
Abstract
Animals can sense the presence of microbes in their tissues and mobilize their own defenses by recognizing and responding to conserved microbial structures (often called microbe-associated molecular patterns (MAMPs)). Successful host defenses may kill the invaders, yet the host animal may fail to restore homeostasis if the stimulatory microbial structures are not silenced. Although mice have many mechanisms for limiting their responses to lipopolysaccharide (LPS), a major Gram-negative bacterial MAMP, a highly conserved host lipase is required to extinguish LPS sensing in tissues and restore homeostasis. We review recent progress in understanding how this enzyme, acyloxyacyl hydrolase (AOAH), transforms LPS from stimulus to inhibitor, reduces tissue injury and death from infection, prevents prolonged post-infection immunosuppression, and keeps stimulatory LPS from entering the bloodstream. We also discuss how AOAH may increase sensitivity to pulmonary allergens. Better appreciation of how host enzymes modify LPS and other MAMPs may help prevent tissue injury and hasten recovery from infection.
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Affiliation(s)
- Robert S Munford
- Laboratory of Clinical Immunology and Microbiology, NIAID, National Institutes of Health, Bethesda, Maryland, USA.
| | - Jerrold P Weiss
- Inflammation Program, University of Iowa, Iowa City, Iowa, USA
| | - Mingfang Lu
- Department of Immunology and Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, Fudan University, Shanghai, China.
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Ciesielska A, Matyjek M, Kwiatkowska K. TLR4 and CD14 trafficking and its influence on LPS-induced pro-inflammatory signaling. Cell Mol Life Sci 2020; 78:1233-1261. [PMID: 33057840 PMCID: PMC7904555 DOI: 10.1007/s00018-020-03656-y] [Citation(s) in RCA: 565] [Impact Index Per Article: 141.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/25/2020] [Accepted: 09/22/2020] [Indexed: 02/07/2023]
Abstract
Toll-like receptor (TLR) 4 belongs to the TLR family of receptors inducing pro-inflammatory responses to invading pathogens. TLR4 is activated by lipopolysaccharide (LPS, endotoxin) of Gram-negative bacteria and sequentially triggers two signaling cascades: the first one involving TIRAP and MyD88 adaptor proteins is induced in the plasma membrane, whereas the second engaging adaptor proteins TRAM and TRIF begins in early endosomes after endocytosis of the receptor. The LPS-induced internalization of TLR4 and hence also the activation of the TRIF-dependent pathway is governed by a GPI-anchored protein, CD14. The endocytosis of TLR4 terminates the MyD88-dependent signaling, while the following endosome maturation and lysosomal degradation of TLR4 determine the duration and magnitude of the TRIF-dependent one. Alternatively, TLR4 may return to the plasma membrane, which process is still poorly understood. Therefore, the course of the LPS-induced pro-inflammatory responses depends strictly on the rates of TLR4 endocytosis and trafficking through the endo-lysosomal compartment. Notably, prolonged activation of TLR4 is linked with several hereditary human diseases, neurodegeneration and also with autoimmune diseases and cancer. Recent studies have provided ample data on the role of diverse proteins regulating the functions of early, late, and recycling endosomes in the TLR4-induced inflammation caused by LPS or phagocytosis of E. coli. In this review, we focus on the mechanisms of the internalization and intracellular trafficking of TLR4 and CD14, and also of LPS, in immune cells and discuss how dysregulation of the endo-lysosomal compartment contributes to the development of diverse human diseases.
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Affiliation(s)
- Anna Ciesielska
- Laboratory of Molecular Membrane Biology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur St., 02-093, Warsaw, Poland.
| | - Marta Matyjek
- Laboratory of Molecular Membrane Biology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur St., 02-093, Warsaw, Poland
| | - Katarzyna Kwiatkowska
- Laboratory of Molecular Membrane Biology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur St., 02-093, Warsaw, Poland
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41
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Jacquet A, Robinson C. Proteolytic, lipidergic and polysaccharide molecular recognition shape innate responses to house dust mite allergens. Allergy 2020; 75:33-53. [PMID: 31166610 DOI: 10.1111/all.13940] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 04/05/2019] [Accepted: 05/23/2019] [Indexed: 02/06/2023]
Abstract
House dust mites (HDMs) are sources of an extensive repertoire of allergens responsible for a range of allergic conditions. Technological advances have accelerated the identification of these allergens and characterized their putative roles within HDMs. Understanding their functional bioactivities is illuminating how they interact with the immune system to cause disease and how interrelations between them are essential to maximize allergic responses. Two types of allergen bioactivity, namely proteolysis and peptidolipid/lipid binding, elicit IgE and stimulate bystander responses to unrelated allergens. Much of this influence arises from Toll-like receptor (TLR) 4 or TLR2 signalling and, in the case of protease allergens, the activation of additional pleiotropic effectors with strong disease linkage. Of related interest is the interaction of HDM allergens with common components of the house dust matrix, through either their binding to allergens or their autonomous modulation of immune receptors. Herein, we provide a contemporary view of how proteolysis, lipid-binding activity and interactions with polysaccharides and polysaccharide molecular recognition systems coordinate the principal responses which underlie allergy. The power of the catalytically competent group 1 HDM protease allergen component is demonstrated by a review of disclosures surrounding the efficacy of novel inhibitors produced by structure-based design.
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Affiliation(s)
- Alain Jacquet
- Center of Excellence in Vaccine Research and Development (Chula Vaccine Research Center-Chula VRC) Chulalongkorn University Bangkok Thailand
| | - Clive Robinson
- Institute for Infection and Immunity St George's, University of London London UK
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42
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Fabbrizzi A, Amedei A, Lavorini F, Renda T, Fontana G. The lung microbiome: clinical and therapeutic implications. Intern Emerg Med 2019; 14:1241-1250. [PMID: 31667699 DOI: 10.1007/s11739-019-02208-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 09/27/2019] [Indexed: 12/20/2022]
Abstract
The human respiratory tract, usually considered sterile, is currently being investigated for human-associated microbial communities. According to Dickson's conceptual model, the lung microbiota (LMt) is a dynamic ecosystem, whose composition, in healthy lungs, is likely to reflect microbial migration, reproduction, and elimination. However, which microbial genera constitutes a "healthy microbiome" per se remains hotly debated. It is now widely accepted that a bi-directional gut-lung axis connects the intestinal with the pulmonary microbiota and that the diet could have a role in modulating both microbiotas as in health as in pathological status. The LMt is altered in numerous respiratory disorders such as obstructive airway diseases, interstitial lung diseases, infections, and lung cancer. Some authors hypothesize that the use of specific bacterial strains, termed "probiotics," with positive effects on the host immunity and/or against pathogens, could have beneficial effects in the treatment of intestinal disorders and pulmonary diseases. In this manuscript, we have reviewed the literature available on the LMt to delineate and discuss the potential relationship between composition alterations of LMt and lung diseases. Finally, we have reported some meaningful clinical studies that used integrated probiotics' treatments to contrast some lung-correlated disorders.
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Affiliation(s)
- Alessio Fabbrizzi
- Department of Clinical and Experimental Medicine, University of Florence, Largo Brambilla 3, 50134, Florence, Italy
| | - Amedeo Amedei
- Department of Clinical and Experimental Medicine, University of Florence, Largo Brambilla 3, 50134, Florence, Italy.
- Sod of Interdisciplinary Internal Medicine, Azienda Ospedaliera Universitaria Careggi (AOUC), University of Florence, 50134, Florence, Italy.
| | - Federico Lavorini
- Department of Clinical and Experimental Medicine, University of Florence, Largo Brambilla 3, 50134, Florence, Italy
| | - Teresa Renda
- Respiratory Unit, Careggi University Hospital, Florence, Italy
| | - Giovanni Fontana
- Department of Clinical and Experimental Medicine, University of Florence, Largo Brambilla 3, 50134, Florence, Italy
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43
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Wypych TP, Wickramasinghe LC, Marsland BJ. The influence of the microbiome on respiratory health. Nat Immunol 2019; 20:1279-1290. [PMID: 31501577 DOI: 10.1038/s41590-019-0451-9] [Citation(s) in RCA: 297] [Impact Index Per Article: 59.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 06/18/2019] [Indexed: 02/06/2023]
Abstract
The revolution in microbiota research over the past decade has provided invaluable knowledge about the function of the microbial species that inhabit the human body. It has become widely accepted that these microorganisms, collectively called 'the microbiota', engage in networks of interactions with each other and with the host that aim to benefit both the microbial members and the mammalian members of this unique ecosystem. The lungs, previously thought to be sterile, are now known to harbor a unique microbiota and, additionally, to be influenced by microbial signals from distal body sites, such as the intestine. Here we review the role of the lung and gut microbiotas in respiratory health and disease and highlight the main pathways of communication that underlie the gut-lung axis.
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Affiliation(s)
- Tomasz P Wypych
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Victoria, Australia.
| | - Lakshanie C Wickramasinghe
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Benjamin J Marsland
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Victoria, Australia.
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44
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Busch CJL, Favret J, Geirsdóttir L, Molawi K, Sieweke MH. Isolation and Long-term Cultivation of Mouse Alveolar Macrophages. Bio Protoc 2019; 9:e3302. [PMID: 31909091 DOI: 10.21769/bioprotoc.3302] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Alveolar macrophages (AM) are tissue-resident macrophages that colonize the lung around birth and can self-maintain long-term in an adult organism without contribution of monocytes. AM are located in the pulmonary alveoli and can be harvested by washing the lungs using the method of bronchoalveolar lavage (BAL). Here, we compared different conditions of BAL to obtain high yields of murine AM for in vitro culture and expansion of AM. In addition, we describe specific culture conditions, under which AM proliferate long-term in liquid culture in the presence of granulocyte-macrophage colony-stimulating factor. This method can be used to obtain large numbers of AM for in vivo transplantation or for in vitro experiments with primary mouse macrophages.
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Affiliation(s)
- Clara Jana-Lui Busch
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Fetscherstraße 105, Dresden, Germany.,Max-Delbrück-Centrum für Molekulare Medizin in der Helmholtzgemeinschaft (MDC), Berlin, Germany
| | - Jérémy Favret
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Fetscherstraße 105, Dresden, Germany.,Max-Delbrück-Centrum für Molekulare Medizin in der Helmholtzgemeinschaft (MDC), Berlin, Germany.,Aix Marseille University, CNRS, INSERM, CIML, Marseille, France
| | | | - Kaaweh Molawi
- Max-Delbrück-Centrum für Molekulare Medizin in der Helmholtzgemeinschaft (MDC), Berlin, Germany.,Aix Marseille University, CNRS, INSERM, CIML, Marseille, France
| | - Michael H Sieweke
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Fetscherstraße 105, Dresden, Germany.,Max-Delbrück-Centrum für Molekulare Medizin in der Helmholtzgemeinschaft (MDC), Berlin, Germany.,Aix Marseille University, CNRS, INSERM, CIML, Marseille, France
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