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Tian L, Jin J, Lai F, Yao S, Zhang Y, Liu J, Zhang H, Lu Q, Liu C, Tian S, Lu Y, Liang Y, Zhao Y, Fan H, Ren W. Nebulized M2 macrophage-derived nanovesicles for the treatment of explosion-induced acute lung injury. J Colloid Interface Sci 2025; 691:137381. [PMID: 40187079 DOI: 10.1016/j.jcis.2025.137381] [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: 12/18/2024] [Revised: 03/18/2025] [Accepted: 03/18/2025] [Indexed: 04/07/2025]
Abstract
Gas explosion-induced acute lung injury (ALI) presents a significant clinical challenge in industrial and military contexts, yet current therapeutic interventions remain suboptimal. Extracellular vesicles (EVs) have emerged as promising nanoscale therapeutic agents, owing to their superior biocompatibility and inherent therapeutic potential. In this study, we engineered and isolated alternatively activated macrophages extracellular vesicles (M2-EVs) and administered them via nebulization to the injured lung tissue in an established murine model of blast-induced ALI. Administration of M2-EVs led to a significant amelioration of pulmonary function, characterized by decreased lung injury scores and attenuated inflammatory markers. Mechanistically, M2-EVs promoted the M1-to-M2 phenotypic transition of pulmonary macrophages, modulated the P62-Keap1-Nrf2 signaling pathway, and consequently mitigated excessive autophagy and oxidative stress. Collectively, these findings not only offer mechanistic insights into the pathogenesis of blast-induced ALI but also highlight M2-EVs as a promising cell-free therapeutic approach for explosion-related pulmonary injuries.
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Affiliation(s)
- Linqiang Tian
- Henan Medical Key Laboratory for Research of Trauma and Orthopedics, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan Province 453003, China
| | - Jie Jin
- School of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medical Technology, Tianjin 300072, China
| | - Feng Lai
- Henan Medical Key Laboratory for Research of Trauma and Orthopedics, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan Province 453003, China
| | - Sanqiao Yao
- Institutes of Health Central Plain, Xinxiang Medical University, Xinxiang, Henan Province 453003, China; School of Public Health, Xinxiang Medical University, Xinxiang, Henan Province 453003, China
| | - Yue Zhang
- Henan Medical Key Laboratory for Research of Trauma and Orthopedics, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan Province 453003, China
| | - Jie Liu
- Henan Medical Key Laboratory for Research of Trauma and Orthopedics, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan Province 453003, China
| | - Huajing Zhang
- School of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medical Technology, Tianjin 300072, China
| | - Qianying Lu
- School of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medical Technology, Tianjin 300072, China
| | - Chuanchuan Liu
- School of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medical Technology, Tianjin 300072, China
| | - Sijia Tian
- School of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medical Technology, Tianjin 300072, China
| | - Yujia Lu
- School of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medical Technology, Tianjin 300072, China
| | - Yangfan Liang
- School of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medical Technology, Tianjin 300072, China
| | - Yanmei Zhao
- School of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medical Technology, Tianjin 300072, China.
| | - Haojun Fan
- School of Disaster and Emergency Medicine, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Disaster Medical Technology, Tianjin 300072, China.
| | - Wenjie Ren
- Henan Medical Key Laboratory for Research of Trauma and Orthopedics, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan Province 453003, China; Institutes of Health Central Plain, Xinxiang Medical University, Xinxiang, Henan Province 453003, China.
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Zhou X, Wu Y, Zhang Y, Chu B, Yang K, Hong J, He Y. Targeting α7 Nicotinic Acetylcholine Receptor for Modulating the Neuroinflammation of Dry Eye Disease Via Macrophages. Invest Ophthalmol Vis Sci 2025; 66:13. [PMID: 40327011 PMCID: PMC12061059 DOI: 10.1167/iovs.66.5.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2025] [Accepted: 04/10/2025] [Indexed: 05/07/2025] Open
Abstract
Purpose Patients with dry eye disease (DED) often exhibit neurological abnormalities and may even suffer from neuropathic pain and pain-related anxiety or depression. The α-7 nicotinic acetylcholine receptor (α7nAChR) is a pivotal regulator in the anti-inflammatory pathway connecting the nervous and immune systems, Here, we investigate the potential of α7nAChR agonist as a novel treatment for DED. Methods We induced DED model by unilateral excision of extraorbital lachrymal gland in C57/BL6 mice. After seven days of treatment, RNA sequencing was performed to identify differentially expressed genes in the cornea of lacrimal gland excision (LGE) mice. Quantitative polymerase chain reaction, Western blotting, and flow cytometry tests were carried out to elucidate neuroinflammation changes after α7nAChR activation. Corneal nerve abnormalities were assessed by corneal esthesiometry and immunofluorescence staining. Results The activation of α7nAChR stimulates genes involved in immune-mediated inflammatory progression and neuroregulation, inhibits the expression of transient receptor potential vanilloid-1, reinstates corneal nerve density, and alleviates anxiety-like behaviors associated with severe DED. Furthermore, we demonstrated that α7nAChR agonist restored corneal nerve abnormality and alleviated inflammation response by down-regulating the proportion of CD86+ M1 macrophages (proinflammatory phenotypes). Conclusions Our findings underscore the activation of α7nAChR as a pioneering therapeutic approach for preserving corneal nerves balance and controlling inflammation in DED.
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Affiliation(s)
- Xujiao Zhou
- Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Gene Editing and Cell Therapy for Rare Diseases, Fudan University, Shanghai, China
| | - Yuqing Wu
- Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
| | - Yirou Zhang
- Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
| | - Binbin Chu
- Institute of Functional Nano and Soft Materials Soochow University, Suzhou, China
| | - Kan Yang
- Department of Ophthalmology, The First People's Hospital of Lanzhou City, Gansu, China
| | - Jiaxu Hong
- Department of Ophthalmology, Eye and ENT Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Gene Editing and Cell Therapy for Rare Diseases, Fudan University, Shanghai, China
- Department of Ophthalmology, Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China
- NHC Key laboratory of Myopia and Related Eye Diseases Shanghai, China
- Shanghai Key Laboratory of Rare Disease Gene Editing and Cell Therapy; Shanghai Engineering Research Center of Synthetic Immunology, Shanghai, China
- Department of Ophthalmology, Children's Hospital of Fudan University, National Pediatric Medical Center of China, Shanghai, China
| | - Yao He
- Macao Translational Medicine Center, Macau University of Science and Technology, Taipa, China
- Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa, China
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Chen X, Shen J, Jiang X, Pan M, Chang S, Li J, Wang L, Miao M, Feng X, Zhang L, Shu G, Liu W, Xu F, Zhang W, Ding Z, Zong H, Liu W, Li D, Chen B, Shao M, Fei G, Zha X, Fan X. Characterization of dipyridamole as a novel ferroptosis inhibitor and its therapeutic potential in acute respiratory distress syndrome management. Theranostics 2024; 14:6947-6968. [PMID: 39629132 PMCID: PMC11610143 DOI: 10.7150/thno.102318] [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: 08/13/2024] [Accepted: 10/10/2024] [Indexed: 12/06/2024] Open
Abstract
Rationale: Ferroptosis in lung epithelium and endothelium contributes to the pathogenesis of acute respiratory distress syndrome (ARDS), a critical and often fatal condition marked by acute inflammation and elevated pulmonary vascular permeability. Despite this, there are currently no FDA-approved therapeutics specifically targeting ferroptosis for ARDS management. Methods: A screening of 259 FDA-approved drugs was conducted to identify an effective ferroptosis inhibitor in pulmonary epithelial and endothelial cells. The anti-ferroptotic and therapeutic efficacy of this screened drug was rigorously evaluated using two distinct ARDS mouse models (LPS-induced acute lung injury and CLP-induced sepsis) and human airway organoids (hAOs). The regulatory mechanism of this drug on ferroptosis inhibition was investigated via RNA-sequencing, qRT-PCR, western blotting, IF, luciferase reporter assay, chromatin immunoprecipitation assay, limited proteolysis-mass spectrometry assay, cellular thermal shift assay, and drug affinity responsive target stability assay. Furthermore, a proof-of-concept clinical trial was conducted, wherein ARDS patients were administered with the drug as adjunctive therapy. Results: Dipyridamole (DIPY) was identified as a potent inhibitor of ferroptosis in pulmonary epithelial and endothelial cells. DIPY effectively mitigated ferroptosis and pulmonary damage in both mouse models and hAOs, primarily by downregulating heme oxygenase 1 (HMOX1). The transcription factor cAMP responsive element binding protein 1 (CREB1) was identified as a key transactivator of HMOX1, which DIPY effectively downregulated. Mechanistically, DIPY binds to and activates superoxide dismutase 1 (SOD1), which in turn inhibits the CREB1/HMOX1 pathway, thereby suppressing ferroptosis. Notably, the clinical trial further corroborated the therapeutic potential of DIPY in ARDS patients, demonstrating improved outcomes with DIPY adjunctive therapy. Conclusions: These findings provide compelling evidence that DIPY inhibits ferroptosis in pulmonary epithelial and endothelial cells by modulating the SOD1/CREB1/HMOX1 signaling axis and suggest DIPY as a promising therapeutic strategy for ARDS treatment.
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Affiliation(s)
- Xu Chen
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
- Anhui Geriatric Institute, Hefei, Anhui, China
| | - Jiapan Shen
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
- Anhui Geriatric Institute, Hefei, Anhui, China
| | - Xueqin Jiang
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Anhui Geriatric Institute, Hefei, Anhui, China
- Key Laboratory of Respiratory Diseases Research and Medical Transformation of Anhui Province, Hefei, Anhui, China
| | - Min Pan
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
- Anhui Geriatric Institute, Hefei, Anhui, China
| | - Shuang Chang
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
- Anhui Geriatric Institute, Hefei, Anhui, China
| | - Juanjuan Li
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
| | - Lei Wang
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Anhui Geriatric Institute, Hefei, Anhui, China
| | - Manli Miao
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
- Anhui Geriatric Institute, Hefei, Anhui, China
| | - Xiaoxia Feng
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Anhui Geriatric Institute, Hefei, Anhui, China
| | - Ling Zhang
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
- Anhui Geriatric Institute, Hefei, Anhui, China
| | - Guoqing Shu
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Anhui Geriatric Institute, Hefei, Anhui, China
| | - Wenjian Liu
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Fangzhou Xu
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Anhui Geriatric Institute, Hefei, Anhui, China
| | - Wentao Zhang
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
| | - Zhao Ding
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
| | - Huaiyuan Zong
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
| | - Weiwei Liu
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
| | - Dapeng Li
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
| | - Biao Chen
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, China
| | - Min Shao
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Guanghe Fei
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Key Laboratory of Respiratory Diseases Research and Medical Transformation of Anhui Province, Hefei, Anhui, China
| | - Xiaojun Zha
- Department of Biochemistry & Molecular Biology, School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
| | - Xiaoyun Fan
- Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Anhui Geriatric Institute, Hefei, Anhui, China
- Key Laboratory of Respiratory Diseases Research and Medical Transformation of Anhui Province, Hefei, Anhui, China
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Zhao C, Chen J, Liu Z, Liang H, Chen X, Cheng L, Xie S, Lin Z, Wu R, Zhao Q, Xue Y, Lai X, Jin X, Xu JF, Su X. Activation of nicotinic acetylcholine receptor α7 subunit limits Zika viral infection via promoting autophagy and ferroptosis. Mol Ther 2024; 32:2641-2661. [PMID: 38822526 PMCID: PMC11405161 DOI: 10.1016/j.ymthe.2024.05.037] [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: 12/04/2023] [Revised: 04/13/2024] [Accepted: 05/29/2024] [Indexed: 06/03/2024] Open
Abstract
Vagus nerve regulates viral infection and inflammation via the alpha 7 nicotinic acetylcholine receptor (α7 nAChR); however, the role of α7 nAChR in ZIKA virus (ZIKV) infection, which can cause severe neurological diseases such as microcephaly and Guillain-Barré syndrome, remains unknown. Here, we first examined the role of α7 nAChR in ZIKV infection in vitro. A broad effect of α7 nAChR activation was identified in limiting ZIKV infection in multiple cell lines. Combined with transcriptomics analysis, we further demonstrated that α7 nAChR activation promoted autophagy and ferroptosis pathways to limit cellular ZIKV viral loads. Additionally, activation of α7 nAChR prevented ZIKV-induced p62 nucleus accumulation, which mediated an enhanced autophagy pathway. By regulating proteasome complex and an E3 ligase NEDD4, activation of α7 nAChR resulted in increased amount of cellular p62, which further enhanced the ferroptosis pathway to reduce ZIKV infection. Moreover, utilizing in vivo neonatal mouse models, we showed that α7 nAChR is essential in controlling the disease severity of ZIKV infection. Taken together, our findings identify an α7 nAChR-mediated effect that critically contributes to limiting ZIKV infection, and α7 nAChR activation offers a novel strategy for combating ZIKV infection and its complications.
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Affiliation(s)
- Caiqi Zhao
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China; Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China; University of Chinese Academy of Sciences, Beijing 100190, China
| | - Jie Chen
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China; University of Chinese Academy of Sciences, Beijing 100190, China; Shanghai Key Laboratory of Lung Inflammation and Injury, Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zhihua Liu
- University of Chinese Academy of Sciences, Beijing 100190, China; Vaccine Center, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China
| | - Huabin Liang
- University of Chinese Academy of Sciences, Beijing 100190, China; Vaccine Center, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xiaoyan Chen
- Shanghai Key Laboratory of Lung Inflammation and Injury, Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Lianping Cheng
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China
| | - Shitao Xie
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China
| | - Zhekai Lin
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China
| | - Renlan Wu
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China
| | - Qi Zhao
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yue Xue
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xiaoyun Lai
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xia Jin
- University of Chinese Academy of Sciences, Beijing 100190, China; Vaccine Center, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China.
| | - Jin-Fu Xu
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200000, China.
| | - Xiao Su
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China; Vaccine Center, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, Shanghai 200032, China; Shanghai Key Laboratory of Lung Inflammation and Injury, Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
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5
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Zhao C, Pan M, Chen J, Li L, Zhang Y, Liu W, Matthay MA, Wang H, Jin X, Xu JF, Su X. Vagal-α7 nicotinic acetylcholine receptor signaling exacerbates influenza severity by promoting lung epithelial cell infection. J Med Virol 2024; 96:e29768. [PMID: 38978388 DOI: 10.1002/jmv.29768] [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: 04/01/2024] [Revised: 05/29/2024] [Accepted: 06/14/2024] [Indexed: 07/10/2024]
Abstract
The vagus nerve circuit, operating through the alpha-7 nicotinic acetylcholine receptor (α7 nAChR), regulates the inflammatory response by influencing immune cells. However, the role of vagal-α7 nAChR signaling in influenza virus infection is unclear. In particular, does vagal-α7 nAChR signaling impact the infection of alveolar epithelial cells (AECs), the primary target cells of influenza virus? Here, we demonstrated a distinct role of α7 nAChR in type II AECs compared to its role in immune cells during influenza infection. We found that deletion of Chrna7 (encoding gene of α7 nAChR) in type II AECs or disruption of vagal circuits reduced lung influenza infection and protected mice from influenza-induced lung injury. We further unveiled that activation of α7 nAChR enhanced influenza infection through PTP1B-NEDD4L-ASK1-p38MAPK pathway. Mechanistically, activation of α7 nAChR signaling decreased p38MAPK phosphorylation during infection, facilitating the nuclear export of influenza viral ribonucleoproteins and thereby promoting infection. Taken together, our findings reveal a mechanism mediated by vagal-α7 nAChR signaling that promotes influenza viral infection and exacerbates disease severity. Targeting vagal-α7 nAChR signaling may offer novel strategies for combating influenza virus infections.
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Affiliation(s)
- Caiqi Zhao
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Mengyao Pan
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jie Chen
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Ling Li
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yan Zhang
- Department of Hematology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenjun Liu
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Michael A Matthay
- Department of Medicine, Department of Anesthesia, Cardiovascular Research Institute, University of California San Francisco, San Francisco, California, USA
| | - Haichao Wang
- Department of Emergency Medicine, North Shore University Hospital, Manhasset, New York, USA
| | - Xia Jin
- Shanghai Serum Bio-Technology Co., Ltd., Shanghai, China
| | - Jin-Fu Xu
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiao Su
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
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6
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Wang Y, Wang L, Ma S, Cheng L, Yu G. Repair and regeneration of the alveolar epithelium in lung injury. FASEB J 2024; 38:e23612. [PMID: 38648494 DOI: 10.1096/fj.202400088r] [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: 01/13/2024] [Revised: 03/01/2024] [Accepted: 04/02/2024] [Indexed: 04/25/2024]
Abstract
Considerable progress has been made in understanding the function of alveolar epithelial cells in a quiescent state and regeneration mechanism after lung injury. Lung injury occurs commonly from severe viral and bacterial infections, inhalation lung injury, and indirect injury sepsis. A series of pathological mechanisms caused by excessive injury, such as apoptosis, autophagy, senescence, and ferroptosis, have been studied. Recovery from lung injury requires the integrity of the alveolar epithelial cell barrier and the realization of gas exchange function. Regeneration mechanisms include the participation of epithelial progenitor cells and various niche cells involving several signaling pathways and proteins. While alveoli are damaged, alveolar type II (AT2) cells proliferate and differentiate into alveolar type I (AT1) cells to repair the damaged alveolar epithelial layer. Alveolar epithelial cells are surrounded by various cells, such as fibroblasts, endothelial cells, and various immune cells, which affect the proliferation and differentiation of AT2 cells through paracrine during alveolar regeneration. Besides, airway epithelial cells also contribute to the repair and regeneration process of alveolar epithelium. In this review, we mainly discuss the participation of epithelial progenitor cells and various niche cells involving several signaling pathways and transcription factors.
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Affiliation(s)
- Yaxuan Wang
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Organ Fibrosis, Pingyuan Laboratory, College of Life Science, Henan Normal university, Xinxiang, China
| | - Lan Wang
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Organ Fibrosis, Pingyuan Laboratory, College of Life Science, Henan Normal university, Xinxiang, China
| | - Shuaichen Ma
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Organ Fibrosis, Pingyuan Laboratory, College of Life Science, Henan Normal university, Xinxiang, China
| | - Lianhui Cheng
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Organ Fibrosis, Pingyuan Laboratory, College of Life Science, Henan Normal university, Xinxiang, China
| | - Guoying Yu
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Organ Fibrosis, Pingyuan Laboratory, College of Life Science, Henan Normal university, Xinxiang, China
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7
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Chen J, Lai X, Song Y, Su X. Neuroimmune recognition and regulation in the respiratory system. Eur Respir Rev 2024; 33:240008. [PMID: 38925790 PMCID: PMC11216688 DOI: 10.1183/16000617.0008-2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 04/16/2024] [Indexed: 06/28/2024] Open
Abstract
Neuroimmune recognition and regulation in the respiratory system is a complex and highly coordinated process involving interactions between the nervous and immune systems to detect and respond to pathogens, pollutants and other potential hazards in the respiratory tract. This interaction helps maintain the health and integrity of the respiratory system. Therefore, understanding the complex interactions between the respiratory nervous system and immune system is critical to maintaining lung health and developing treatments for respiratory diseases. In this review, we summarise the projection distribution of different types of neurons (trigeminal nerve, glossopharyngeal nerve, vagus nerve, spinal dorsal root nerve, sympathetic nerve) in the respiratory tract. We also introduce several types of cells in the respiratory epithelium that closely interact with nerves (pulmonary neuroendocrine cells, brush cells, solitary chemosensory cells and tastebuds). These cells are primarily located at key positions in the respiratory tract, where nerves project to them, forming neuroepithelial recognition units, thus enhancing the ability of neural recognition. Furthermore, we summarise the roles played by these different neurons in sensing or responding to specific pathogens (influenza, severe acute respiratory syndrome coronavirus 2, respiratory syncytial virus, human metapneumovirus, herpes viruses, Sendai parainfluenza virus, Mycobacterium tuberculosis, Pseudomonas aeruginosa, Staphylococcus aureus, amoebae), allergens, atmospheric pollutants (smoking, exhaust pollution), and their potential roles in regulating interactions among different pathogens. We also summarise the prospects of bioelectronic medicine as a third therapeutic approach following drugs and surgery, as well as the potential mechanisms of meditation breathing as an adjunct therapy.
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Affiliation(s)
- Jie Chen
- Shanghai Key Laboratory of Lung Inflammation and Injury, Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
- These authors contributed equally to this work
| | - Xiaoyun Lai
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
- These authors contributed equally to this work
| | - Yuanlin Song
- Shanghai Key Laboratory of Lung Inflammation and Injury, Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiao Su
- Unit of Respiratory Infection and Immunity, Shanghai Institute of Immunity and Infection, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
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