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Xuan S, Ma Y, Zhou H, Gu S, Yao X, Zeng X. The implication of dendritic cells in lung diseases: Immunological role of toll-like receptor 4. Genes Dis 2024; 11:101007. [PMID: 39238498 PMCID: PMC11375267 DOI: 10.1016/j.gendis.2023.04.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 09/07/2024] Open
Abstract
The immune responses play a profound role in the progression of lung lesions in both infectious and non-infectious diseases. Dendritic cells, as the "frontline" immune cells responsible for antigen presentation, set up a bridge between innate and adaptive immunity in the course of these diseases. Among the receptors equipped in dendritic cells, Toll-like receptors are a group of specialized receptors as one type of pattern recognition receptors, capable of sensing environmental signals including invading pathogens and self-antigens. Toll-like receptor 4, a pivotal member of the Toll-like receptor family, was formerly recognized as a receptor sensitive to the outer membrane component lipopolysaccharide derived from Gram-negative bacteria, triggering the subsequent response. Moreover, its other essential roles in immune responses have drawn significant attention in the past decade. A better understanding of the implication of Toll-like receptor 4 in dendritic cells could contribute to the management of pulmonary diseases including pneumonia, pulmonary tuberculosis, asthma, acute lung injury, and lung cancer.
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Affiliation(s)
- Shurui Xuan
- Department of Pulmonary & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
- Department of Respiratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Yuan Ma
- Department of Pulmonary & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Honglei Zhou
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Shengwei Gu
- Department of Pulmonary & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Xin Yao
- Department of Pulmonary & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Xiaoning Zeng
- Department of Pulmonary & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
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Strobl S, Zucchetta D, Vašíček T, Monti A, Ruda A, Widmalm G, Heine H, Zamyatina A. Nonreducing Sugar Scaffold Enables the Development of Immunomodulatory TLR4-specific LPS Mimetics with Picomolar Potency. Angew Chem Int Ed Engl 2024; 63:e202408421. [PMID: 38870340 DOI: 10.1002/anie.202408421] [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: 05/03/2024] [Revised: 06/07/2024] [Accepted: 06/11/2024] [Indexed: 06/15/2024]
Abstract
Innate immune defense mechanisms against infection and cancer encompass the modulation of pattern recognition receptor (PRR)-mediated inflammation, including upregulation of various transcription factors and the activation of pro-inflammatory pathways important for immune surveillance. Dysfunction of PRRs-mediated signaling has been implicated in cancer and autoimmune diseases, while the overactivation of PRRs-driven responses during infection can lead to devastating consequences such as acute lung injury or sepsis. We used crystal structure-based design to develop immunomodulatory lipopolysaccharide (LPS) mimetics targeting one of the ubiquitous PRRs, Toll-like Receptor 4 (TLR4). Taking advantage of an exo-anomeric conformation and specific molecular shape of synthetic nonreducing β,β-diglucosamine, which was investigated by NMR, we developed two sets of lipid A mimicking glycolipids capable of either potently activating innate immune responses or inhibiting pro-inflammatory signaling. Stereoselective 1,1'-glycosylation towards fully orthogonally protected nonreducing GlcNβ(1↔1')βGlcN followed by stepwise assembly of differently functionalised phosphorylated glycolipids provided biologically active molecules that were evaluated for their ability to trigger or to inhibit cellular innate immune responses. Two LPS mimetics, identified as potent TLR4-specific inducers of the intracellular signaling pathways, serve as vaccine adjuvant- and immunotherapy candidates, while anionic glycolipids with TLR4-inhibitory potential hold therapeutic promise for the management of acute or chronic inflammation.
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Affiliation(s)
- Sebastian Strobl
- Department of Chemistry, BOKU University, Muthgasse 18, Vienna, A-1190, Austria
| | - Daniele Zucchetta
- Department of Chemistry, BOKU University, Muthgasse 18, Vienna, A-1190, Austria
| | - Tomáš Vašíček
- Department of Chemistry, BOKU University, Muthgasse 18, Vienna, A-1190, Austria
| | - Alessandro Monti
- Department of Chemistry, BOKU University, Muthgasse 18, Vienna, A-1190, Austria
| | - Alessandro Ruda
- Department of Organic Chemistry, Stockholm University, S-106 91, Stockholm, Sweden
| | - Göran Widmalm
- Department of Organic Chemistry, Stockholm University, S-106 91, Stockholm, Sweden
| | - Holger Heine
- Research Group Innate Immunity, Research Center Borstel, Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Parkallee 22, Borstel, 23845, Germany
| | - Alla Zamyatina
- Department of Chemistry, BOKU University, Muthgasse 18, Vienna, A-1190, Austria
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Xu P, Yu Y, Wu P. Role of microglia in brain development after viral infection. Front Cell Dev Biol 2024; 12:1340308. [PMID: 38298216 PMCID: PMC10825034 DOI: 10.3389/fcell.2024.1340308] [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: 11/17/2023] [Accepted: 01/04/2024] [Indexed: 02/02/2024] Open
Abstract
Microglia are immune cells in the brain that originate from the yolk sac and enter the developing brain before birth. They play critical roles in brain development by supporting neural precursor proliferation, synaptic pruning, and circuit formation. However, microglia are also vulnerable to environmental factors, such as infection and stress that may alter their phenotype and function. Viral infection activates microglia to produce inflammatory cytokines and anti-viral responses that protect the brain from damage. However, excessive or prolonged microglial activation impairs brain development and leads to long-term consequences such as autism spectrum disorder and schizophrenia spectrum disorder. Moreover, certain viruses may attack microglia and deploy them as "Trojan horses" to infiltrate the brain. In this brief review, we describe the function of microglia during brain development and examine their roles after infection through microglia-neural crosstalk. We also identify limitations for current studies and highlight future investigated questions.
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Affiliation(s)
- Pei Xu
- Department of Neurobiology, University of Texas Medical Branch, Galveston, TX, United States
| | - Yongjia Yu
- Department of Radiation Oncology, University of Texas Medical Branch, Galveston, TX, United States
| | - Ping Wu
- Department of Neurobiology, University of Texas Medical Branch, Galveston, TX, United States
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Wang R, Yang T, Feng Q, Jiang Y, Yuan X, Zhao L, Liu N, Liu Z, Zhang Y, Wang L, Cheng G, Yao J, Sun C, Zhang G, Gu Q. Integration of network pharmacology and proteomics to elucidate the mechanism and targets of traditional Chinese medicine Biyuan Tongqiao granule against allergic rhinitis in an ovalbumin-induced mice model. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116816. [PMID: 37414198 DOI: 10.1016/j.jep.2023.116816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/16/2023] [Accepted: 06/17/2023] [Indexed: 07/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Biyuan Tongqiao granule (BYTQ) is a traditional Chinese medicine that has been used in China to clinically treat patients with allergic rhinitis (AR), yet its underlying mechanism and targets remains unclear. AIM OF THE STUDY The study aimed to investigate the potential mechanism of BYTQ against AR using the ovalbumin (OVA) -induced AR mice model. Integrating network pharmacology and proteomics to investigate possible targets of BYTQ for AR. MATERIALS AND METHODS The compounds in BYTQ were analyzed using UHPLC-ESI-QE-Orbitrap-MS. The OVA/Al(OH)3 were used to induce the AR mice model. The nasal symptoms, histopathology, immune subsets, inflammatory factors, and differentially expressed proteins were examined. Proteomics analysis elucidated the potential mechanisms of BYTQ to improve AR, which was further validated by Western blot (WB) assay. The compounds and potential targets of BYTQ were systematically elucidated by integrating network pharmacology and proteomics analysis to explore the mechanism. The binding affinity between key potential targets and corresponding compounds was then validated using molecular docking. Molecular docking results were verified by a western blotting and cellular thermal shift assay (CETSA). RESULTS A total of 58 compounds were identified from BYTQ. BYTQ significantly suppressed AR symptoms by inhibiting the release of OVA-specific immunoglobulin E (IgE) and histamine, improving the pathological injury of nasal mucosal tissue, and regulating the proportions of lymphocytes to maintain immune balance. Proteomics analysis showed that the cell adhesion factors and focal adhesion pathway might be potential mechanism of BYTQ against AR. The levels of E-selectin, vascular endothelial cell adhesion molecule-1 (VCAM-1), and intercellular adhesion molecule-1 (ICAM-1) proteins in the nasal mucosal tissue were significantly downregulated in the BYTQ-H group compared to the AR group. Integrating network pharmacology and proteomics analysis identified that SRC, PIK3R1, HSP90AA1, GRB2, AKT1, MAPK3, MAPK1, TP53, PIK3CA, and STAT3 may be potential protein targets for BYTQ to treat AR. Molecular docking analysis indicated that the active compounds of BYTQ could bind tightly to these key targets. In addition, BYTQ could inhibit OVA-induced phosphorylation levels of PI3K, AKT1, STAT3 and ERK1/2. The CETSA data suggested that BYTQ could improve the heat stability of PI3K, AKT1, STAT3 and ERK1/2. CONCLUSIONS BYTQ suppresses E-selectin and VCAM-1 and ICAM1 expression by regulating PI3K/AKT and STAT3/MAPK signaling pathways, thus alleviating inflammation in AR mice. BYTQ is the aggressive treatment for AR.
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Affiliation(s)
- Ruikun Wang
- Department of Otolaryngology, Head and Neck Surgery, Children's Hospital Capital Institute of Pediatrics, Beijing, 100020, China
| | - Tianye Yang
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China
| | - Qun Feng
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China
| | - Yujun Jiang
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China
| | - Xiaomei Yuan
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China
| | - Lizhi Zhao
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China
| | - Ning Liu
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China
| | - Zhong Liu
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China
| | - Yongkang Zhang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Luyao Wang
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China
| | - Guoliang Cheng
- College of Traditional Chinese Medicine, Beijing University of Traditional Chinese Medicine, Beijing, 100029, China
| | - Jingchun Yao
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China
| | - Chenghong Sun
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China.
| | - Guimin Zhang
- State Key Laboratory of Integration and Innovation of Classic Formula and Modern Chinese Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China.
| | - Qinglong Gu
- Department of Otolaryngology, Head and Neck Surgery, Children's Hospital Capital Institute of Pediatrics, Beijing, 100020, China.
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Mowahedi M, Aramesh A, Khouzani MS, Khouzani MS, Daryanoush S, Samet M, Samadi M. Association of Interleukin-4 Receptor α Chain I50V Gene Variant (rs1805010) and Asthma in Iranian Population: A Case-control Study. Open Respir Med J 2024; 18:e18743064266613. [PMID: 38660682 PMCID: PMC11037512 DOI: 10.2174/0118743064266613231123103523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 09/09/2023] [Accepted: 10/03/2023] [Indexed: 04/26/2024] Open
Abstract
Background Asthma is one of the respiratory disorders caused by chronic airway inflammation. IL-4 has been identified as one of the participating interleukins in the severity of asthma. Objective A case-control study was conducted to determine the association of rs1805010, a single nucleotide polymorphism in the interleukin 4 receptor α chain, with asthma and immunoglobulin E and IL-17A serum levels in Iranian populations. Methods ELISA was used to investigate the relationship between three different varieties of SNP I50V and serum IL-17A levels, as well as total IgE levels. Based on GINA criteria, patients were classified into mild, moderate, and severe groups based on the association between SNP I50V, IL-17A, and total IgE. In order to analyze the data, the student-t-test and the one-way ANOVA were used. Results The SNP I50V was associated with asthma in a significant way (p = 0.001). IL-17A and total IgE levels were significantly higher in asthmatic patients than in control participants (p 0.05 and p 0.021, respectively), but neither showed any association with SNP I50V in the asthmatic patients. Conclusion Asthma patients have a higher prevalence of the I allele, reflecting the significance of Th2 cells. Although total IgE and IL-17A levels increased in both disease subgroups, total IgE level augmentation correlates directly with disease severity, while IL-17A level enhancement does not.
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Affiliation(s)
- Masouma Mowahedi
- Abortion Research Center, Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Azam Aramesh
- Thalassemia and Hemophilia Research Center, Shahid Dastgheib Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Marjan Sorkhi Khouzani
- Cellular and Molecular Biology - Genetic Center, Falavarjan Azad University, Isfahan, Iran
| | - Saeed Daryanoush
- Thalassemia and Hemophilia Research Center, Shahid Dastgheib Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Samet
- Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Morteza Samadi
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Tu W, Hu X, Wan R, Xiao X, Shen Y, Srikaram P, Avvaru SN, Yang F, Pi F, Zhou Y, Wan M, Gao P. Effective delivery of miR-511-3p with mannose-decorated exosomes with RNA nanoparticles confers protection against asthma. J Control Release 2024; 365:602-616. [PMID: 37996055 PMCID: PMC10872989 DOI: 10.1016/j.jconrel.2023.11.034] [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: 06/30/2023] [Revised: 11/14/2023] [Accepted: 11/17/2023] [Indexed: 11/25/2023]
Abstract
Our previous studies have shown that miR-511-3p treatment has a beneficial effect in alleviating allergic airway inflammation. Here, we sought to explore its therapeutic potential in animal models and gain a deeper understanding of its therapeutic value for asthma. miR-511-3p knockout mice (miR-511-3p-/-) were generated by CRISPR/Cas and showed exacerbated airway hyper-responsiveness and Th2-associated allergic airway inflammation compared with wild-type (WT) mice after exposed to cockroach allergen. RNA nanoparticles with mannose decorated EV-miR-511-3p were also created by loading miR-511-3p mimics into the mannose decorated EVs with engineered RNA nanoparticle PRNA-3WJ (Man-EV-miR-511-3p). Intra-tracheal inhalation of Man-EV-miR-511-3p, which could effectively penetrate the airway mucus barrier and deliver functional miR-511-3p to lung macrophages, successfully reversed the increased airway inflammation observed in miR-511-3p-/- mice. Through microarray analysis, complement C3 (C3) was identified as one of the major targets of miR-511-3p. C3 was increased in LPS-treated macrophages but decreased after miR-511-3p treatment. Consistent with these findings, C3 expression was elevated in the lung macrophages of an asthma mouse model but decreased in mice treated with miR-511-3p. Further experiments, including miRNA-mRNA pulldown and luciferase reporter assays, confirmed that miR-511-3p directly binds to C3 and activates the C3 gene. Thus, miR-511-3p represents a promising therapeutic target for asthma, and RNA nanotechnology reprogrammed EVs are efficient carriers for miRNA delivery for disease treatment.
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Affiliation(s)
- Wei Tu
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA; Department of Respirology & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen 518020, China; The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Xinyue Hu
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA; Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Rongjun Wan
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA; Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Xiaojun Xiao
- The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Yingchun Shen
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA
| | - Prakhyath Srikaram
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA
| | - Sai Nithin Avvaru
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA
| | - Fuhan Yang
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA
| | | | - Yufeng Zhou
- Children's Hospital and Institute of Biomedical Sciences, Fudan University, Key Laboratory of Neonatal Disease, Ministry of Health, Shanghai, China
| | - Mei Wan
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Peisong Gao
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA.
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Kang C, Li X, Liu P, Liu Y, Niu Y, Zeng X, Zhao H, Liu J, Qiu S. Tolerogenic dendritic cells and TLR4/IRAK4/NF-κB signaling pathway in allergic rhinitis. Front Immunol 2023; 14:1276512. [PMID: 37915574 PMCID: PMC10616250 DOI: 10.3389/fimmu.2023.1276512] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 10/05/2023] [Indexed: 11/03/2023] Open
Abstract
Dendritic cells (DCs), central participants in the allergic immune response, can capture and present allergens leading to allergic inflammation in the immunopathogenesis of allergic rhinitis (AR). In addition to initiating antigen-specific immune responses, DCs induce tolerance and modulate immune homeostasis. As a special type of DCs, tolerogenic DCs (tolDCs) achieve immune tolerance mainly by suppressing effector T cell responses and inducing regulatory T cells (Tregs). TolDCs suppress allergic inflammation by modulating immune tolerance, thereby reducing symptoms of AR. Activation of the TLR4/IRAK4/NF-κB signaling pathway contributes to the release of inflammatory cytokines, and inhibitors of this signaling pathway induce the production of tolDCs to alleviate allergic inflammatory responses. This review focuses on the relationship between tolDCs and TLR4/IRAK4/NF-κB signaling pathway with AR.
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Affiliation(s)
- Chenglin Kang
- Department of Graduate and Scientific Research, Zunyi Medical University Zhuhai Campus, Zhuhai, China
- Department of Otolaryngology, Longgang E.N.T Hospital and Shenzhen Key Laboratory of E.N.T, Institute of E.N.T Shenzhen, Shenzhen, China
- Department of Otolaryngology, Second People’s Hospital of Gansu Province, Lanzhou, China
| | - Xiaomei Li
- Department of Otolaryngology, Second People’s Hospital of Gansu Province, Lanzhou, China
| | - Peng Liu
- Department of Graduate and Scientific Research, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Yue Liu
- Department of Graduate and Scientific Research, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Yuan Niu
- Department of Neurology, Second People’s Hospital of Gansu Province, Lanzhou, China
| | - Xianhai Zeng
- Department of Graduate and Scientific Research, Zunyi Medical University Zhuhai Campus, Zhuhai, China
- Department of Otolaryngology, Longgang E.N.T Hospital and Shenzhen Key Laboratory of E.N.T, Institute of E.N.T Shenzhen, Shenzhen, China
| | - Hailiang Zhao
- Department of Graduate and Scientific Research, Zunyi Medical University Zhuhai Campus, Zhuhai, China
- Department of Otolaryngology, Longgang E.N.T Hospital and Shenzhen Key Laboratory of E.N.T, Institute of E.N.T Shenzhen, Shenzhen, China
| | - Jiangqi Liu
- Department of Graduate and Scientific Research, Zunyi Medical University Zhuhai Campus, Zhuhai, China
- Department of Otolaryngology, Longgang E.N.T Hospital and Shenzhen Key Laboratory of E.N.T, Institute of E.N.T Shenzhen, Shenzhen, China
| | - Shuqi Qiu
- Department of Graduate and Scientific Research, Zunyi Medical University Zhuhai Campus, Zhuhai, China
- Department of Otolaryngology, Longgang E.N.T Hospital and Shenzhen Key Laboratory of E.N.T, Institute of E.N.T Shenzhen, Shenzhen, China
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Li H, Zhang H, Zhao H. Apigenin attenuates inflammatory response in allergic rhinitis mice by inhibiting the TLR4/MyD88/NF-κB signaling pathway. ENVIRONMENTAL TOXICOLOGY 2023; 38:253-265. [PMID: 36350155 DOI: 10.1002/tox.23699] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/10/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Allergic rhinitis (AR) is an immunoglobulin E (IgE)-mediated immune inflammatory response that mainly affects the nasal mucosa. Currently, there is evidence that apigenin, as a flavonoid, has anti-allergic potential. MATERIAL/METHODS In vitro, compound 48/80 and lipopolysaccharide (LPS) were used to induce mast cell activation and inflammation in HMC-1 cells. In vivo, ovalbumin (OVA) induced and stimulated AR in BALB/c mice. ELISA was used to detect the contents of β-hexosaminidase, histamine, eosinophil cationic protein (ECP), OVA-specific IgE, IgG1, and IgG2a, inflammatory factors in cells and mouse serum. Cell viability and apoptosis were measured with MTT and flow cytometry. Toll like receptor 4 (TLR4)/myeloid differentiation factor88 (MyD88)/Nuclear transcription factor-κB (NF-κB) pathway-related proteins in cells and mouse nasal mucosa tissues were analyzed with Western blotting. The levels of Th1 (IFN-γ) and Th2 (IL-4, IL-5, and IL-13) cytokines and Th1 (T-bet) and Th2 (GATA-3) specific transcription factors were also assessed. The ratio of Th1 (CD4+ IFN-γ+ ) / Th2 (CD4+ IL-4+ ) cells in mouse peripheral blood mononuclear cells was evaluated by flow cytometry. RESULTS Apigenin significantly inhibited compound 48/80-induced secretion of β-hexosaminidase and histamine. Apigenin blocked LPS-induced decrease in cell viability and increase in cell apoptosis and inflammatory cytokine secretion by suppressing the activity of the TLR4/MyD88/NF-κB pathway. Apigenin treatment reduced the levels of OVA-specific IgE, IgG1 and IgG2a as well as β-hexosaminidase, histamine and ECP levels in mouse serum. Moreover, administration with apigenin decreased Th2 cytokine and transcription factor levels and increased Th1 cytokine and transcription factor levels, and promoted the ratio of Th1/Th2 cells in AR mice. Additionally, apigenin significantly alleviated nasal symptoms and nasal eosinophil infiltration in AR mice. CONCLUSIONS Apigenin alleviates the inflammatory response of allergic rhinitis by inhibiting the activity of the TLR4/MyD88/NF-κB signaling pathway.
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Affiliation(s)
- Huajing Li
- Department of Otolaryngology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hongmei Zhang
- Department of Otolaryngology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hua Zhao
- Department of Pharmacy, Affiliated Hospital of Medical College of Xi'an Jiaotong University, Shaanxi Provincial Cancer Hospital, Xi'an, China
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Zhai Y, Zheng P, Sun B, Li J, Wang B. Allergen-specific immunotherapy with Alutard SQ improves allergic inflammation in house-dust mites-induced allergic asthma rats through inactivation of the HMGB1/TLR4/NF-κB pathway. J Thorac Dis 2023; 15:77-89. [PMID: 36794148 PMCID: PMC9922602 DOI: 10.21037/jtd-22-715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 11/25/2022] [Indexed: 01/12/2023]
Abstract
Background Allergen-specific immunotherapy (AIT) is the only available safe, effective, and long-term treatment for allergic airway diseases, including allergic asthma. However, the potential molecular mechanism of AIT in ameliorating airway inflammation remains unknown. Methods Rats were sensitized and challenged with house dust mite (HDM) and administered with Alutard SQ or/and high mobility group box 1 (HMGB1) inhibitor, ammonium glycyrrhizinate (AMGZ) or HMGB1 lentivirus. The total and differential cell counts in rat bronchoalveolar lavage fluid (BALF) were detected. Hematoxylin and eosin staining (H&E) was performed to examine the pathological lesions in lung tissues. Enzyme-linked immunosorbent assay (ELISA) was performed to assess the expression of inflammatory factors in lungs, BALF, and serum. Quantitative real-time PCR (qRT-PCR) was used to measure the levels of inflammatory factors in the lungs. Western blot assay was used to evaluate the expression of HMGB1, Τoll-like receptor 4 (TLR4), and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) in the lungs. Results Consequently, AIT with Alutard SQ attenuated airway inflammation, the total and differential cells in BALF, and expression of Th (T helper)2 related cytokines and transforming growth factor beta 1 (TGF-β1). The regimen also upregulated Th-1-related cytokine expression by inhibiting the HMGB1/TLR4/NF-κB pathway in HDM-induced asthmatic rats. Furthermore, AMGZ, a HMGB1 antagonist, amplified the functions of AIT with Alutard SQ in the asthma rat model. Nevertheless, overexpression of HMGB1 reversed the functions of AIT with Alutard SQ in the asthma rat model. Conclusions In summary, this work demonstrates the role of AIT with Alutard SQ, which inhibits the HMGB1/TLR4/NF-κB signaling pathway in allergic asthma management.
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Affiliation(s)
- Yingying Zhai
- Department of Pediatrics, Zhujiang Hospital, Southern Medical University, Guangzhou, China;,Department of Pediatrics, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Peiyan Zheng
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Baoqing Sun
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jing Li
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Bin Wang
- Department of Pediatrics, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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Heine H, Zamyatina A. Therapeutic Targeting of TLR4 for Inflammation, Infection, and Cancer: A Perspective for Disaccharide Lipid A Mimetics. Pharmaceuticals (Basel) 2022; 16:23. [PMID: 36678520 PMCID: PMC9864529 DOI: 10.3390/ph16010023] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/28/2022] Open
Abstract
The Toll-like receptor 4 (TLR4) signaling pathway plays a central role in the prompt defense against infectious challenge and provides immediate response to Gram-negative bacterial infection. The TLR4/MD-2 complex can sense and respond to various pathogen-associated molecular patterns (PAMPs) with bacterial lipopolysaccharide (LPS) being the most potent and the most frequently occurring activator of the TLR4-mediated inflammation. TLR4 is believed to be both a friend and foe since improperly regulated TLR4 signaling can result in the overactivation of immune responses leading to sepsis, acute lung injury, or pathologic chronic inflammation involved in cancer and autoimmune disease. TLR4 is also considered a legitimate target for vaccine adjuvant development since its activation can boost the adaptive immune responses. The dual action of the TLR4 complex justifies the efforts in the development of both TLR4 antagonists as antisepsis drug candidates or remedies for chronic inflammatory diseases and TLR4 agonists as vaccine adjuvants or immunotherapeutics. In this review, we provide a brief overview of the biochemical evidences for possible pharmacologic applications of TLR4 ligands as therapeutics and report our systematic studies on the design, synthesis, and immunobiological evaluation of carbohydrate-based TLR4 antagonists with nanomolar affinity for MD-2 as well as disaccharide-based TLR4 agonists with picomolar affinity for the TLR4/MD-2 complex.
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Affiliation(s)
- Holger Heine
- Research Group Innate Immunity, Research Center Borstel—Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Parkallee 22, 23845 Borstel, Germany
| | - Alla Zamyatina
- Department of Chemistry, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
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11
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Rosini AM, Teixeira SC, Milian ICB, Silva RJ, de Souza G, Luz LC, Gomes AO, Mineo JR, Mineo TWP, Ferro EAV, Barbosa BF. LPS-mediated activation of TLR4 controls Toxoplasma gondii growth in human trophoblast cell (BeWo) and human villous explants in a dependent-manner of TRIF, MyD88, NF-κB and cytokines. Tissue Cell 2022; 78:101907. [DOI: 10.1016/j.tice.2022.101907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/22/2022] [Accepted: 08/22/2022] [Indexed: 02/07/2023]
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12
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Strobl S, Hofbauer K, Heine H, Zamyatina A. Lipid A Mimetics Based on Unnatural Disaccharide Scaffold as Potent TLR4 Agonists for Prospective Immunotherapeutics and Adjuvants. Chemistry 2022; 28:e202200547. [PMID: 35439332 PMCID: PMC9325513 DOI: 10.1002/chem.202200547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Indexed: 11/11/2022]
Abstract
TLR4 is a key pattern recognition receptor that can sense pathogen- and danger- associated molecular patterns to activate the downstream signaling pathways which results in the upregulation of transcription factors and expression of interferons and cytokines to mediate protective pro-inflammatory responses involved in immune defense. Bacterial lipid A is the primary TLR4 ligand with very complex, species-specific, and barely predictable structure-activity relationships. Given that therapeutic targeting of TLR4 is an emerging tool for management of a variety of human diseases, the development of novel TLR4 activating biomolecules other than lipid A is of vast importance. We report on design, chemical synthesis and immunobiology of novel glycan-based lipid A-mimicking molecules that can activate human and murine TLR4-mediated signaling with picomolar affinity. Exploiting crystal structure - based design we have created novel disaccharide lipid A mimetics (DLAMs) where the inherently flexible β(1→6)-linked diglucosamine backbone of lipid A is exchanged with a conformationally restrained non-reducing βGlcN(1↔1')βGlcN scaffold. Excellent stereoselectivity in a challenging β,β-1,1' glycosylation was achieved by tuning the reactivities of donor and acceptor molecules using protective group manipulation strategy. Divergent streamlined synthesis of β,β-1,1'-linked diglucosamine-derived glycolipids entailing multiple long-chain (R)-3- acyloxyacyl residues and up two three phosphate groups was developed. Specific 3D-molecular shape and conformational rigidity of unnatural β,β-1,1'-linked diglucosamine combined with carefully optimized phosphorylation and acylation pattern ensured efficient induction of the TLR4-mediated signaling in a species-independent manner.
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Affiliation(s)
- Sebastian Strobl
- Department of ChemistryUniversity of Natural Resources and Life SciencesMuthgasse 18Vienna1190Austria
| | - Karin Hofbauer
- Department of ChemistryUniversity of Natural Resources and Life SciencesMuthgasse 18Vienna1190Austria
| | - Holger Heine
- Research Group Innate ImmunityResearch Center Borstel-Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Disease (DZL)Parkallee 22Borstel23845Germany
| | - Alla Zamyatina
- Department of ChemistryUniversity of Natural Resources and Life SciencesMuthgasse 18Vienna1190Austria
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13
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Yang J, Kuang H, Li N, Hamdy AM, Song J. The modulation and mechanism of probiotic-derived polysaccharide capsules on the immune response in allergic diseases. Crit Rev Food Sci Nutr 2022; 63:8768-8780. [PMID: 35400262 DOI: 10.1080/10408398.2022.2062294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Allergic diseases, derived from the dysregulation of immune tolerance mechanisms, have been rising in the last two decades. Recently, increasing evidence has shown that probiotic-derived polysaccharide capsules exhibit a protective effect against allergic diseases, involving regulation of Th1/Th2 balance, induction of differentiation of T regulatory cells and activation of dendritic cells (DCs). DCs have a central role in controlling the immune response through their interaction with gut microbiota via their pattern recognition receptors, including Toll-like receptors and C-type-lectin receptors. This review discusses the effects and critical mechanism of probiotic-derived polysaccharide capsules in regulating the immune system to alleviate allergic diseases. We first describe the development of immune response in allergic diseases and recent relevant findings. Particular emphasis is placed on the effects of probiotic-derived polysaccharide capsules on allergic immune response. Then, we discuss the underlying mechanism of the impact of probiotic-derived polysaccharide capsules on DCs-mediated immune tolerance induction.
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Affiliation(s)
- Jing Yang
- Chongqing Engineering Research Center for Processing & Storage of Distinct Agricultural Products, Chongqing Technology and Business University, Chongqing, China
| | - Hong Kuang
- Chongqing Engineering Research Center for Processing & Storage of Distinct Agricultural Products, Chongqing Technology and Business University, Chongqing, China
| | - Ning Li
- Chongqing Engineering Research Center for Processing & Storage of Distinct Agricultural Products, Chongqing Technology and Business University, Chongqing, China
| | - Ahmed Mahmoud Hamdy
- Dairy Science Department, Faculty of Agriculture, Assiut University, Assiut, Egypt
| | - Jiajia Song
- College of Food Science, Southwest University, Chongqing, China
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14
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Zhang X, Hu X, Tian T, Pang W. The role of ICOS in allergic disease: Positive or Negative? Int Immunopharmacol 2021; 103:108394. [PMID: 34922247 DOI: 10.1016/j.intimp.2021.108394] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/15/2021] [Accepted: 11/19/2021] [Indexed: 01/09/2023]
Abstract
With the rapid increase in the incidence of allergic diseases, the mechanisms underlying the development of these diseases have received a great deal of attention, and this is particularly true in regard to the role of ICOS in allergic diseases. Current studies have revealed that ICOS affects the functional activity of multiple immune cells that modulate the adaptive immune system. Additionally, ICOS also plays a crucial role in mediating cellular immunity and coordinating the response of the entire immune system, and thus, it plays a role in allergic reactions. However, the ICOS/ICOS-ligand (ICOS-L) axis functions in a dual role during the development of multiple allergic diseases. In this review, we explore the role of ICOS/ICOSL in the context of different immune cells that function in allergic diseases, and we summarize recent advances in their contribution to these diseases.
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Affiliation(s)
- Xueyan Zhang
- Department of Otorhinolaryngology-Head and Neck Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xianyang Hu
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Shanghai Medical College of Fudan University, Shanghai, China
| | - Tengfei Tian
- Department of Otolaryngology-Head and Neck Surgery, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Wenhui Pang
- Department of Otorhinolaryngology-Head and Neck Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China.
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15
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Shen W, Yin Y, Li T, Cao G. Euxanthone inhibits lipopolysaccharide-induced injury, inflammatory response, and MUC5AC hypersecretion in human airway epithelial cells by the TLR4/MyD88 pathway. J Appl Toxicol 2021; 42:671-682. [PMID: 34655103 DOI: 10.1002/jat.4249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 09/09/2021] [Accepted: 09/21/2021] [Indexed: 01/07/2023]
Abstract
Asthma progression is involved in airway epithelial dysfunction, airway inflammatory response, and mucus hypersecretion. Euxanthone has been found to exhibit cytotoxic activity on several human diseases, such as neurological disorders and cancers. Our study aimed to explore the influence of euxanthone on lipopolysaccharide (LPS)-induced injury, inflammatory response, and mucin 5AC (MUC5AC) hypersecretion in human airway epithelial cells (AECs). Network pharmacology analysis was carried out to analyze the drug targets and key pathways of euxanthone against asthma. Cell injury was evaluated by CCK-8, Lactate dehydrogenase (LDH) release assay, and terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) assay. The production of interleukin (IL)-6, IL-8, monocyte chemoattractant protein-1 (MCP-1), and MUC5AC was measured using enzyme-linked immunosorbent assay (ELISA). MUC5AC mRNA expression was detected by qRT-PCR. Toll-like receptor 4 (TLR4) and myeloid differentiation factor 88 (MyD88) protein expression was examined by western blot analysis. Venn diagram showed 14 overlapping targets between euxanthone and asthma. According to Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis, we focused on TLR signaling pathway. LPS exposure evoked viability reduction, increased LDH release and apoptosis, and induced production of inflammatory cytokines (IL-6, IL-8, and MCP-1) and MUC5AC hypersecretion in human AECs, which were alleviated by euxanthone. Mechanistically, we validated that euxanthone attenuated LPS-induced activation of TLR4/MyD88 pathway in AECs. Moreover, inhibition of the TLR4/MyD88 pathway enhanced the inhibitory effect of euxanthone on LPS-induced cell injury, inflammatory response and MUC5AC expression. In conclusion, euxanthone attenuated LPS-induced cell injury, inflammatory response, and MUC5AC expression in AECs by inhibiting the activation of TLR4/MyD88 pathway.
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Affiliation(s)
- Wen Shen
- Department of Respiratory Medicine, Huai'an Second People's Hospital, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, China
| | - Yuyao Yin
- Gastroenterology Department, Nanjing Pukou District Central Hospital, Pukou Branch of Jiangsu People's Hospital, Nanjing, China
| | - Tiantian Li
- Department of Ultrasound, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Gang Cao
- Department of Respiratory Medicine, Hongze District People's Hospital, Huai'an, China
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16
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Li D, Wu M. Pattern recognition receptors in health and diseases. Signal Transduct Target Ther 2021; 6:291. [PMID: 34344870 PMCID: PMC8333067 DOI: 10.1038/s41392-021-00687-0] [Citation(s) in RCA: 608] [Impact Index Per Article: 202.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 05/23/2021] [Accepted: 06/22/2021] [Indexed: 02/07/2023] Open
Abstract
Pattern recognition receptors (PRRs) are a class of receptors that can directly recognize the specific molecular structures on the surface of pathogens, apoptotic host cells, and damaged senescent cells. PRRs bridge nonspecific immunity and specific immunity. Through the recognition and binding of ligands, PRRs can produce nonspecific anti-infection, antitumor, and other immunoprotective effects. Most PRRs in the innate immune system of vertebrates can be classified into the following five types based on protein domain homology: Toll-like receptors (TLRs), nucleotide oligomerization domain (NOD)-like receptors (NLRs), retinoic acid-inducible gene-I (RIG-I)-like receptors (RLRs), C-type lectin receptors (CLRs), and absent in melanoma-2 (AIM2)-like receptors (ALRs). PRRs are basically composed of ligand recognition domains, intermediate domains, and effector domains. PRRs recognize and bind their respective ligands and recruit adaptor molecules with the same structure through their effector domains, initiating downstream signaling pathways to exert effects. In recent years, the increased researches on the recognition and binding of PRRs and their ligands have greatly promoted the understanding of different PRRs signaling pathways and provided ideas for the treatment of immune-related diseases and even tumors. This review describes in detail the history, the structural characteristics, ligand recognition mechanism, the signaling pathway, the related disease, new drugs in clinical trials and clinical therapy of different types of PRRs, and discusses the significance of the research on pattern recognition mechanism for the treatment of PRR-related diseases.
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Affiliation(s)
- Danyang Li
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, China
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China
| | - Minghua Wu
- Hunan Provincial Tumor Hospital and the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha, Hunan, China.
- The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute, Central South University, Changsha, Hunan, China.
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17
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Peng F, Jin S, Chen Z, Chang H, Xiao J, Li J, Zou J, Feng H. TRIF-mediated antiviral signaling is differentially regulated by TRAF2 and TRAF6 in black carp. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 121:104073. [PMID: 33766587 DOI: 10.1016/j.dci.2021.104073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/16/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
TRIF is an antiviral adaptor downstream of Toll-like receptors, the roles of teleost TRIF and their regulation remain largely unknown. In this study, a TRIF homologue (bcTRIF) of black carp (Mylopharyngodon piceus) has been cloned, and the transcription of bcTRIF in vivo and ex vivo increased in response to different stimuli. Overexpressed bcTRIF induced the transcription of interferon promoter in the EPC cells and enhanced protection of cells against infection of spring viremia of carp virus (SVCV). The previous study has identified that black carp TRAF2 (bcTRAF2) and TRAF6 (bcTRAF6) functioned positively in RIG-I/MAVS signaling. When co-expressed with bcTRAF2, bcTRIF-induced the transcription of interferon promoter in EPC cells was decreased, and the antiviral activity of bcTRIF was dampened accordingly. On the contrary, co-expressed bcTRAF6 enhanced both bcTRIF-mediated interferon promoter transcription and antiviral activity. The subsequent co-immunoprecipitation identified the interaction between bcTRAF2/6 and bcTRIF. Thus, bcTRIF-mediated antiviral signaling is up-regulated by bcTRAF6 and down-regulated by bcTRAF2.
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Affiliation(s)
- Fei Peng
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Saisai Jin
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Zhaoyuan Chen
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Haiyan Chang
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China
| | - Jun Xiao
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China; College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jianzhong Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China.
| | - Jun Zou
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Hao Feng
- State Key Laboratory of Developmental Biology of Freshwater Fish, College of Life Science, Hunan Normal University, Changsha, 410081, China.
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Li P, Wang J, Wang C, Cheng L, Ma Q, Li Y, An Y, Dai H, Duan Y, Wang T, Ma X, Zhang M, Wang T, Zhao B. Therapeutic effects and mechanisms study of Hanchuan Zupa Granule in a Guinea pig model of cough variant asthma. JOURNAL OF ETHNOPHARMACOLOGY 2021; 269:113719. [PMID: 33358856 DOI: 10.1016/j.jep.2020.113719] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Hanchuan Zupa Granule (HCZP), a traditional Chinese ethnodrug, has the functions of supressing a cough, resolving phlegm, warming the lungs, and relieving asthma. In clinical practice employing traditional Chinese medicine (TCM), HCZP is commonly used to treat acute colds, cough and abnormal mucous asthma caused by a cold, or "Nai-Zi-Lai" in the Uygur language. Studies have confirmed the use of HCZP to treat cough variant asthma (CVA) and other respiratory diseases. However, the pharmacological mechanisms of HCZP remain unrevealed. AIM OF THE STUDY To investigate the anti-tussive and anti-asthmatic effects and the possible pharmacological mechanisms of HCZP in the treatment of CVA. MATERIALS AND METHODS A guinea pig CVA animal model was established by intraperitoneal injection of ovalbumin (OVA) combined with intraperitoneal injection of aluminium hydroxide adjuvant and atomized OVA. Meanwhile, guinea pigs with CVA received oral HCZP (at dosages of 0.571, 0.285 and 0.143 g/kg bodyweight). The number of coughs induced by aerosol capsaicin was recorded, and the airway hyperresponsiveness (AHR) of CVA guinea pigs was detected with the FinePointe series RC system. H&E staining of lung tissues was performed to observe pathological changes. ELISA was used to detect inflammatory cytokines. qRT-PCR and western blotting analyses were used to detect the expression of Th1-specific transcription factor (T-bet), Th2-specific transcription factor (GATA3), and Toll-like receptor 4 (TLR4) signal transduction elements. These methods were performed to assess the protective effects and the potential mechanisms of HCZP on CVA. RESULTS Great changes were found in the CVA guinea pig model after HCZP treatment. The number of coughs induced by capsaicin in guinea pigs decreased, the body weights of guinea pigs increased, and inflammation of the eosinophilic airway and AHR were reduced simultaneously. These results indicate that HCZP has a significant protective effect on CVA. A pharmacological study of HCZP showed that the levels of interleukin-4 (IL-4) and IL-5 and tumour necrosis factor-α (TNF-α) in serum decreased. The amount of interferon-γ (IFN-γ) increased, mRNA and protein expression of TLR4 and GATA3 weakened, and mRNA and protein expression of T-bet increased. CONCLUSIONS HCZP ameliorated the symptoms of guinea pigs with CVA induced by OVA by regulating the Th1/Th2 imbalance and TLR4 receptors.
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Affiliation(s)
- Pengfei Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Jingkang Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Chunguo Wang
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Long Cheng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Quantao Ma
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yaqi Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yongcheng An
- College of Life Sciences, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Hongyu Dai
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yuhui Duan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Tieshan Wang
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xuan Ma
- Xinjiang Qimu Medical Research Institute (Co., Ltd.), Xinjiang 830011, China
| | - Minghui Zhang
- Xinjiang Qimu Medical Research Institute (Co., Ltd.), Xinjiang 830011, China
| | - Ting Wang
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
| | - Baosheng Zhao
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
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Zamyatina A, Heine H. Lipopolysaccharide Recognition in the Crossroads of TLR4 and Caspase-4/11 Mediated Inflammatory Pathways. Front Immunol 2020; 11:585146. [PMID: 33329561 PMCID: PMC7732686 DOI: 10.3389/fimmu.2020.585146] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 10/23/2020] [Indexed: 12/12/2022] Open
Abstract
The innate immune response to lipopolysaccharide is essential for host defense against Gram-negative bacteria. In response to bacterial infection, the TLR4/MD-2 complex that is expressed on the surface of macrophages, monocytes, dendritic, and epithelial cells senses picomolar concentrations of endotoxic LPS and triggers the production of various pro-inflammatory mediators. In addition, LPS from extracellular bacteria which is either endocytosed or transfected into the cytosol of host cells or cytosolic LPS produced by intracellular bacteria is recognized by cytosolic proteases caspase-4/11 and hosts guanylate binding proteins that are involved in the assembly and activation of the NLRP3 inflammasome. All these events result in the initiation of pro-inflammatory signaling cascades directed at bacterial eradication. However, TLR4-mediated signaling and caspase-4/11-induced pyroptosis are largely involved in the pathogenesis of chronic and acute inflammation. Both extra- and intracellular LPS receptors-TLR4/MD-2 complex and caspase-4/11, respectively-are able to directly bind the lipid A motif of LPS. Whereas the structural basis of lipid A recognition by the TLR4 complex is profoundly studied and well understood, the atomic mechanism of LPS/lipid A interaction with caspase-4/11 is largely unknown. Here we describe the LPS-induced TLR4 and caspase-4/11 mediated signaling pathways and their cross-talk and scrutinize specific structural features of the lipid A motif of diverse LPS variants that have been reported to activate caspase-4/11 or to induce caspase-4/11 mediated activation of NLRP3 inflammasome (either upon transfection of LPS in vitro or upon infection of cell cultures with intracellular bacteria or by LPS as a component of the outer membrane vesicles). Generally, inflammatory caspases show rather similar structural requirements as the TLR4/MD-2 complex, so that a "basic" hexaacylated bisphosphorylated lipid A architecture is sufficient for activation. However, caspase-4/11 can sense and respond to much broader variety of lipid A variants compared to the very "narrow" specificity of TLR4/MD-2 complex as far as the number and the length of lipid chains attached at the diglucosamine backbone of lipid A is concerned. Besides, modification of the lipid A phosphate groups with positively charged appendages such as phosphoethanolamine or aminoarabinose could be essential for the interaction of lipid A/LPS with inflammatory caspases and related proteins.
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Affiliation(s)
- Alla Zamyatina
- Institute of Organic Chemistry, Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Holger Heine
- Research Group Innate Immunity, Research Center Borstel—Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Disease (DZL), Borstel, Germany
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20
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Zuo ZT, Ma Y, Sun Y, Bai CQ, Ling CH, Yuan FL. The Protective Effects of Helicobacter pylori Infection on Allergic Asthma. Int Arch Allergy Immunol 2020; 182:53-64. [PMID: 33080611 DOI: 10.1159/000508330] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 04/30/2020] [Indexed: 12/13/2022] Open
Abstract
As an ancient Gram-negative bacterium, Helicobacter pylori has settled in human stomach. Eradicating H. pylori increases the morbidities of asthma and other allergic diseases. Therefore, H. pylori might play a protective role against asthma. The "disappearing microbiota" hypothesis suggests that the absence of certain types of the ancestral microbiota could change the development of immunology, metabolism, and cognitive ability in our early life, contributing to the development of some diseases. And the Hygiene Hypothesis links early environmental and microbial exposure to the prevalence of atopic allergies and asthma. Exposure to the environment and microbes can influence the growing immune system and protect subsequent immune-mediated diseases. H. pylori can inhibit allergic asthma by regulating the ratio of helper T cells 1/2 (Th1/Th2), Th17/regulatory T cells (Tregs), etc. H. pylori can also target dendritic cells to promote immune tolerance and enhance the protective effect on allergic asthma, and this effect relies on highly suppressed Tregs. The remote regulation of lung immune function by H. pylori is consistent with the gut-lung axis theory. Perhaps, H. pylori also protects against asthma by altering levels of stomach hormones, affecting the autonomic nervous system and lowering the expression of heat shock protein 70. Therapeutic products from H. pylori may be used to prevent and treat asthma. This paper reviews the possible protective influence of H. pylori on allergic asthma and the possible application of H. pylori in treating asthma.
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Affiliation(s)
- Zhi Tong Zuo
- Department of Respiratory Disease, The Hospital Affiliated to Jiangnan University, Wuxi, China,
| | - Ya Ma
- Wuxi Medical College of Jiangnan University, Wuxi, China
| | - Yan Sun
- Department of Respiratory Disease, The Hospital Affiliated to Jiangnan University, Wuxi, China
| | - Cui Qing Bai
- Department of Respiratory Disease, The Hospital Affiliated to Jiangnan University, Wuxi, China
| | - Chun Hua Ling
- Department of Respiratory Disease, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Feng Lai Yuan
- Department of Orthopaedics and Central Laboratory, The Hospital Affiliated to Jiangnan University, Wuxi, China
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21
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Chen S, Deng Y, He Q, Chen Y, Wang D, Sun W, He Y, Zou Z, Liang Z, Chen R, Yao L, Tao A. Toll-like Receptor 4 Deficiency Aggravates Airway Hyperresponsiveness and Inflammation by Impairing Neutrophil Apoptosis in a Toluene Diisocyanate-Induced Murine Asthma Model. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2020; 12:608-625. [PMID: 32400128 PMCID: PMC7225000 DOI: 10.4168/aair.2020.12.4.608] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/28/2019] [Accepted: 01/01/2020] [Indexed: 12/15/2022]
Abstract
PURPOSE Accumulating evidence has suggested that toll-like receptor 4 (TLR4) is critically involved in the pathogenesis of asthma. The aim of this study was to investigate the role of TLR4 in toluene diisocyanate (TDI)-induced allergic airway inflammation. METHODS TLR4-/- and wild-type (WT) C57BL/10J mice were sensitized and challenged with TDI to generate a TDI-induced asthma model. B-cell lymphoma 2 (Bcl-2) inhibitors, ABT-199 (4 mg/kg) and ABT-737 (4 mg/kg), were intranasally given to TDI-exposed TLR4-/- mice after each challenge. RESULTS TDI exposure led to increased airway hyperresponsiveness (AHR), granulocyte flux, bronchial epithelial shedding and extensive submucosal collagen deposition, which were unexpectedly aggravated by TLR4 deficiency. Following TDI challenge, TLR4-/- mice exhibited down-regulated interleukin-17A and increased colony-stimulating factor 3 in bronchoalveolar lavage fluid (BALF), while WT mice did not. In addition, TLR4 deficiency robustly suppressed the expression of NOD-like receptor family pyrin domain containing 3 and NLR family CARD domain containing 4, decreased caspase-1 activity in TDI-exposed mice, but had no effect on the level of high mobility group box 1 in BALF. Flow cytometry revealed that TDI hampered both neutrophil and eosinophil apoptosis, of which neutrophil apoptosis was further inhibited in TDI-exposed TLR4-/- mice, with marked up-regulation of Bcl-2. Moreover, inhibition of Bcl-2 with either ABT-199 or ABT-737 significantly alleviated neutrophil recruitment by promoting apoptosis. CONCLUSIONS These data indicated that TLR4 deficiency promoted neutrophil infiltration by impairing its apoptosis via up-regulation of Bcl-2, thereby resulting in deteriorated AHR and airway inflammation, which suggests that TLR4 could be a negative regulator of TDI-induced neutrophilic inflammation.
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Affiliation(s)
- Shuyu Chen
- The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China.,Center for Immunology, Inflammation & Immune-Mediated Disease, Guangzhou Medical University, Guangzhou, China
| | - Yao Deng
- The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China.,Center for Immunology, Inflammation & Immune-Mediated Disease, Guangzhou Medical University, Guangzhou, China
| | - Qiaoling He
- The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China.,Center for Immunology, Inflammation & Immune-Mediated Disease, Guangzhou Medical University, Guangzhou, China
| | - Yanbo Chen
- Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - De Wang
- The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China.,Center for Immunology, Inflammation & Immune-Mediated Disease, Guangzhou Medical University, Guangzhou, China
| | - Weimin Sun
- The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China.,Center for Immunology, Inflammation & Immune-Mediated Disease, Guangzhou Medical University, Guangzhou, China
| | - Ying He
- The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China.,Center for Immunology, Inflammation & Immune-Mediated Disease, Guangzhou Medical University, Guangzhou, China
| | - Zehong Zou
- The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China.,Center for Immunology, Inflammation & Immune-Mediated Disease, Guangzhou Medical University, Guangzhou, China
| | - Zhenyu Liang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Rongchang Chen
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Lihong Yao
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
| | - Ailin Tao
- The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China.,Center for Immunology, Inflammation & Immune-Mediated Disease, Guangzhou Medical University, Guangzhou, China. ,
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22
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Shang L, Wang L, Shi X, Wang N, Zhao L, Wang J, Liu C. HMGB1 was negatively regulated by HSF1 and mediated the TLR4/MyD88/NF-κB signal pathway in asthma. Life Sci 2019; 241:117120. [PMID: 31825792 DOI: 10.1016/j.lfs.2019.117120] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/20/2019] [Accepted: 11/28/2019] [Indexed: 01/23/2023]
Abstract
AIMS The present study explored the function and regulatory mechanism of High mobility group box 1 (HMGB1) in asthma. MAIN METHODS OVA (ovalbumin)-induced asthmatic mice model and LPS-treated cellular model were established in this study. Airway inflammation was measured through detecting the expression of IL-4, IL-5, IL-13 and Interferon-γ (IFN-γ) in serum and BALF (bronchoalveolar lavage fluid) by ELISA kits. Bioinformatics predictive analysis, ChIP assays, Luciferase reporter assay and Western blotting were used to explore the relation between HMGB1 and HSF1 (Heat shock factor 1). KEY FINDINGS HMGB1 expression was increased in OVA-induced asthmatic mice. Silencing HMGB1 attenuated the increasing of IgE, inflammatory factors (IL-4, IL-5 and IL-13), and airway hyperresponsiveness that induced by OVA. In addition, our study found that HSF1 directly bind with the HMGB1 promoter and negatively regulation of HMGB1. HSF-1 were upregulated in OVA-induced asthmatic mice, and knockdown of HSF1 aggravated the OVA-induced airway inflammation and airway hyperreactivity in mice may through promoting the expression of HMGB1 and the activation of the Toll-like receptor 4 (TLR4)/Myeloid differentiation primary response 88 (MyD88)/Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) signal pathway. SIGNIFICANCE The expression of HMGB1 could be negatively regulated by HSF1, and the TLR4/MyD88/NF-κB signal pathway was involved in HSF1/HMGB1-mediated regulation of asthma.
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Affiliation(s)
- Liqun Shang
- Department of Respiratory Medicine, Shaanxi Provincial People's Hospital Xi'an, Shaanxi, 710068, PR China
| | - Li Wang
- Department of Respiratory Medicine, Shaanxi Provincial People's Hospital Xi'an, Shaanxi, 710068, PR China
| | - Xiaolan Shi
- Department of Respiratory and Asthma, Xi'an Children's Hospital, Xi'an, Shaanxi, 710003, PR China
| | - Ning Wang
- Department of Respiratory and Asthma, Xi'an Children's Hospital, Xi'an, Shaanxi, 710003, PR China
| | - Long Zhao
- Department of Respiratory and Asthma, Xi'an Children's Hospital, Xi'an, Shaanxi, 710003, PR China
| | - Jing Wang
- Department of Respiratory and Asthma, Xi'an Children's Hospital, Xi'an, Shaanxi, 710003, PR China
| | - Cuicui Liu
- Department of Respiratory and Asthma, Xi'an Children's Hospital, Xi'an, Shaanxi, 710003, PR China.
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23
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Xue Q, Li X, Gu Y, Wang X, Wang M, Tian J, Duan X, Gao H, Ji X, Yan X, Dong W, Fang Q, Zhang X. Unbalanced Expression of ICOS and PD-1 in Patients with Neuromyelitis Optica Spectrum Disorder. Sci Rep 2019; 9:14130. [PMID: 31575949 PMCID: PMC6773714 DOI: 10.1038/s41598-019-50479-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 09/13/2019] [Indexed: 12/22/2022] Open
Abstract
Neuromyelitis optica spectrum disorder (NMOSD) likely results from humoral immune abnormalities. The role that helper T cells play in the pathogenesis of this disease is not fully understood. To ascertain the clinical significance of two important costimulatory molecules required for T-cell activation in the peripheral blood of patients with NMOSD, we examined the expression levels of a membrane- and soluble-type inducible costimulatory molecule (ICOS), its ligand (ICOSL), programmed death-1 (PD-1), and its ligand (PD-L1) in the peripheral blood of 30 patients with NMOSD and compared these levels with those in patients with longitudinally extensive transverse myelitis (LETM), those with optic neuritis (ON), and healthy controls (HCs). Our results showed that the ICOS/ICOSL and PD-1/PD-L1 pathways may play important roles in the early stages of NMOSD pathogenesis. ICOS and PD-1 are potential therapeutic targets and valuable biomarkers for the differential diagnosis of early-stage NMOSD.
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Affiliation(s)
- Qun Xue
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China. .,Institute of Clinical Immunology, Jiangsu Key Laboratory of Clinical Immunology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China. .,Suzhou Clinical Medical Center of Neurology, Suzhou, Jiangsu, 215004, China.
| | - Xiaoping Li
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China.,Institute of Clinical Immunology, Jiangsu Key Laboratory of Clinical Immunology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Yanzheng Gu
- Institute of Clinical Immunology, Jiangsu Key Laboratory of Clinical Immunology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China.,Suzhou Clinical Medical Center of Neurology, Suzhou, Jiangsu, 215004, China
| | - Xiaozhu Wang
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Mingyuan Wang
- Suzhou Red Cross Central Blood Station, Suzhou, Jiangsu, 215006, China
| | - Jingluan Tian
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Xiaoyu Duan
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Hanqing Gao
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Xiaopei Ji
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Xiaoming Yan
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Wanli Dong
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Qi Fang
- Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China. .,Institute of Clinical Immunology, Jiangsu Key Laboratory of Clinical Immunology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China.
| | - Xueguang Zhang
- Institute of Clinical Immunology, Jiangsu Key Laboratory of Clinical Immunology, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China. .,Suzhou Clinical Medical Center of Neurology, Suzhou, Jiangsu, 215004, China.
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Mahdaviani SA, Rezaei N. Pulmonary Manifestations of Predominantly Antibody Deficiencies. PULMONARY MANIFESTATIONS OF PRIMARY IMMUNODEFICIENCY DISEASES 2019. [PMCID: PMC7123456 DOI: 10.1007/978-3-030-00880-2_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Predominantly antibody deficiencies (PADs) are the most frequent forms of primary immunodeficiency diseases (PIDs). Commonly accompanied with complications involving several body systems, immunoglobulin substitution therapy along with prophylactic antibiotics remained the cornerstone of treatment for PADs and related complications. Patients with respiratory complications should be prescribed an appropriate therapy as soon as possible and have to be adhering to more and longer medical therapies. Recent studies identified a gap for screening protocols to monitor respiratory manifestations in patients with PADs. In the present chapter, the pulmonary manifestations of different PADs for each have been discussed. The chapter is mainly focused on X-linked agammaglobulinemia, common variable immunodeficiency, activated PI3K-δ syndrome, LRBA deficiency, CD19 complex deficiencies, CD20 deficiency, other monogenic defects associated with hypogammaglobulinemia, immunoglobulin class switch recombination deficiencies affecting B-cells, transient hypogammaglobulinemia of infancy, and selective IgA deficiency.
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Affiliation(s)
- Seyed Alireza Mahdaviani
- Pediatric Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies Children’s Medical Center, Tehran University of Medical Sciences (TUMS), Tehran, Iran
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25
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Ishii T, Niikura Y, Kurata K, Muroi M, Tanamoto K, Nagase T, Sakaguchi M, Yamashita N. Time-dependent distinct roles of Toll-like receptor 4 in a house dust mite-induced asthma mouse model. Scand J Immunol 2018; 87. [PMID: 29337391 DOI: 10.1111/sji.12641] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 01/09/2018] [Indexed: 12/28/2022]
Abstract
House dust mites (HDMs) are a common source of allergens that trigger both allergen-specific and innate immune responses in humans. Here, we examined the effect of allergen concentration and the involvement of Toll-like receptor 4 (TLR4) in the process of sensitization to house dust mite allergens in an HDM extract-induced asthma mouse model. Intranasal administration of HDM extract induced an immunoglobulin E response and eosinophilic inflammation in a dose-dependent manner from 2.5 to 30 μg/dose. In TLR4-knockout mice, the infiltration of eosinophils and neutrophils into the lung was decreased compared with that in wild-type mice in the early phase of inflammation (total of three doses). However, in the late phase of inflammation (total of seven doses), eosinophil infiltration was significantly greater in TLR4-knockout mice than in wild-type mice. This suggests that the roles of TLR4 signaling are different between the early phase and the later phase of HDM allergen-induced inflammation. Thus, innate immune response through TLR4 regulated the response to HDM allergens, and the regulation was altered during the phase of inflammation.
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Affiliation(s)
- T Ishii
- Department of Pharmacotherapy, Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo, Japan.,Department of Pulmonary Medicine, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - Y Niikura
- Department of Pharmacotherapy, Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo, Japan
| | - K Kurata
- ITEA Inc., Institute of Tokyo Environmental Allergy, Tokyo, Japan
| | - M Muroi
- Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo, Japan
| | - K Tanamoto
- Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo, Japan
| | - T Nagase
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - M Sakaguchi
- Department of Veterinary Microbiology, School of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - N Yamashita
- Department of Pharmacotherapy, Research Institute of Pharmaceutical Sciences, Musashino University, Tokyo, Japan
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