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Wu X, Du F, Zhang A, Zhang G, Xu R, Du X. KDELR2 is necessary for chronic obstructive pulmonary disease airway Mucin5AC hypersecretion via an IRE1α/XBP-1s-dependent mechanism. J Cell Mol Med 2024; 28:e70125. [PMID: 39365189 PMCID: PMC11451269 DOI: 10.1111/jcmm.70125] [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: 11/02/2023] [Revised: 09/14/2024] [Accepted: 09/20/2024] [Indexed: 10/05/2024] Open
Abstract
Airway mucus hypersecretion, a crucial pathological feature of chronic obstructive pulmonary disease (COPD), contributes to the initiation, progression, and exacerbation of this disease. As a macromolecular mucin, the secretory behaviour of Mucin5AC (MUC5AC) is highly dependent on a series of modifying and folding processes that occur in the endoplasmic reticulum (ER). In this study, we focused on the ER quality control protein KDEL receptor (KDELR) and demonstrated that KDELR2 and MUC5AC were colocalized in the airway epithelium of COPD patients and COPD model rats. In addition, knockdown of KDELR2 markedly reduced the expression of MUC5AC both in vivo and in vitro and knockdown of ATF6 further decreased the levels of KDELR2. Furthermore, pretreatment with 4μ8C, an IRE1α inhibitor, led to a partial reduction in the expression of KDELR2 and MUC5AC both in vivo and in vitro, which indicated the involvement of IRE1α/XBP-1s in the upstream signalling cascade. Our study revealed that KDELR2 plays a crucial role in airway MUC5AC hypersecretion in COPD, which might be dependent on ATF6 and IRE1α/XBP-1s upstream signalling.
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Affiliation(s)
- Xiaojuan Wu
- Department of Respiratory and Critical Care MedicineThe Second Affiliated Hospital of Chongqing Medical UniversityChongqingChina
- Department of Respiratory and Critical Care MedicineSuining Central HospitalSuiningSichuanChina
| | - Fawang Du
- Department of Respiratory and Critical Care MedicineSuining Central HospitalSuiningSichuanChina
| | - Aijie Zhang
- Basic Laboratory, Key Laboratory of Metabolic DiseasesSuining Central HospitalSuiningChina
| | - Guoyue Zhang
- Department of Respiratory and Critical Care MedicineThe Second Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Rui Xu
- Department of Respiratory and Critical Care MedicineThe Second Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Xianzhi Du
- Department of Respiratory and Critical Care MedicineThe Second Affiliated Hospital of Chongqing Medical UniversityChongqingChina
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Bai T, Guo J, Deng Y, Zheng Y, Shang J, Zheng P, Liu M, Yang M, Zhang J. A systematical strategy for quality markers screening of different methods processing Platycodonis radix based on phytochemical analysis and the impact on Chronic Obstructive Pulmonary Disease. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117311. [PMID: 37827295 DOI: 10.1016/j.jep.2023.117311] [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: 08/12/2023] [Revised: 10/08/2023] [Accepted: 10/10/2023] [Indexed: 10/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Baihezhijiegeng is a processed product of Platycodonis radix, and it's effective in the treatment of Chronic Obstructive Pulmonary Disease (COPD). However, the specific mechanism of action has not been reported in the literature. AIM OF THE STUDY We attempted to evaluate the phytochemical composition and pharmaco-dynamics of Platycodon grandiflorum (PG) and BJ to clarify the mechanism behind the expectorant effect of BJ. MATERIALS AND METHODS We integrated the ultra-high-performance liquid chromatography-linear trap quadrupole orbitrap velos mass spectrometry (UPLC-LTQ Orbitrap MS/MS) and the ultra-performance liquid chromatography quadrupole-time-of-flight tandem mass spectrometry (UPLC-Q-TOF-MS/MS) methods to identify the chemical constituents of PG and BJ. Moreover, correlation and multivariate statistical analyses were utilized to seek the candidate quality markers of PG and BJ. Analysis of effective herbal chemical components using UPLC-Q-TOF-MS/MS and retrieval of COPD disease targets from OMIM, TTD, GeneCard databases. Protein-protein interaction (PPI) and topology analyses were performed using the String database and Cytoscape 3.7.2 software; gene ontology (GO) functional enrichment analysis and Kyoto encyclopedia of genes and genomes (KEGG) pathway enrichment analysis were performed using the Metescape platform on common targets. Moreover, we used molecular docking to predict the potential mechanism of quality markers for developing anti-COPD activity. Simultaneously, the model of COPD was established by exposing the animals to cigarette smoke combined with a tracheal drip injection of lipopolysaccharide (LPS). Using the ELISA method, quantitative real-time polymerase chain reaction (qRT-PCR) and western blotting (WB) to determine tumor-necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, and matrix metalloproteinase (MMP)9 levels in serum and IL-4, IL-10, IFN-γ levels, epidermal growth factor receptor (EGFR) and MUC5AC expression in lung tissue of COPD rats to explore the therapeutic effects of PG and BJ on the COPD rat model. RESULTS The chemical identification of JG and PG extracts using UPLC-Q-TOF-MS/MS and UPLC-LTQ Orbitrap MS/MS showed 71 compounds, including 47 saponins, 16 phenolic acids, four flavonoids, and four other components. The multivariate statistical analysis showed that seven quality markers were screened. Network pharmacology results showed a role in biological processes such as cellular response to hydrogen peroxide, positive regulation of pri-miRNA transcription from RNA polymerase II promoter, molecular functions such as oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor, bile acid binding and other molecular functions. In COPD rats, histopathological findings depicted that BJ administration could effectively inhibit inflammatory cell infiltration and mucus hypersecretion, and improve the lung pathological status in rats with COPD. Moreover, BJ could significantly decrease TNF-α, IL-1β, IL-6, and matrix metalloproteinase (MMP)9 levels in the serum and interferon (IFN)-γ levels in lung tissues of rats with COPD (p < 0.01), and significantly increase IL-4 and IL-10 levels in their lung tissues (p < 0.01), suggesting its inhibition of the inflammatory response in vivo. Additionally, EGFR and MUC5AC were reduced in the lung tissues of rats with COPD and airway mucus hypersecretion in rats with COPD. CONCLUSION This study revealed the material basis of PG and BJ for anti-COPD activity and discovered the quality markers of PG and BJ which could affect the anti-COPD activity. The therapeutic effects of BJ may be attributed to the regulation of the inflammatory mediators and mediation of the EGFR/MUC5AC pathway in rats with COPD.
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Affiliation(s)
| | | | - Yaling Deng
- Affiliated Hospital of Jiangxi University of Chinese Medicine, China
| | | | - Jie Shang
- Jiangxi University of Chinese Medicine, China
| | - Peng Zheng
- Jiangxi University of Chinese Medicine, China
| | | | - Ming Yang
- Jiangxi University of Chinese Medicine, China
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Margaritte-Jeannin P, Vernet R, Budu-Aggrey A, Ege M, Madore AM, Linhard C, Mohamdi H, von Mutius E, Granell R, Demenais F, Laprise C, Bouzigon E, Dizier MH. TNS1 and NRXN1 Genes Interacting With Early-Life Smoking Exposure in Asthma-Plus-Eczema Susceptibility. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2023; 15:779-794. [PMID: 37957795 PMCID: PMC10643854 DOI: 10.4168/aair.2023.15.6.779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 05/15/2023] [Accepted: 06/13/2023] [Indexed: 11/15/2023]
Abstract
PURPOSE Numerous genes have been associated with allergic diseases (asthma, allergic rhinitis, and eczema), but they explain only part of their heritability. This is partly because most previous studies ignored complex mechanisms such as gene-environment (G-E) interactions and complex phenotypes such as co-morbidity. However, it was recently evidenced that the co-morbidity of asthma-plus-eczema appears as a sub-entity depending on specific genetic factors. Besides, evidence also suggest that gene-by-early life environmental tobacco smoke (ETS) exposure interactions play a role in asthma, but were never investigated for asthma-plus-eczema. To identify genetic variants interacting with ETS exposure that influence asthma-plus-eczema susceptibility. METHODS To conduct a genome-wide interaction study (GWIS) of asthma-plus-eczema according to ETS exposure, we applied a 2-stage strategy with a first selection of single nucleotide polymorphisms (SNPs) from genome-wide association meta-analysis to be tested at a second stage by interaction meta-analysis. All meta-analyses were conducted across 4 studies including a total of 5,516 European-ancestry individuals, of whom 1,164 had both asthma and eczema. RESULTS Two SNPs showed significant interactions with ETS exposure. They were located in 2 genes, NRXN1 (2p16) and TNS1 (2q35), never reported associated and/or interacting with ETS exposure for asthma, eczema or more generally for allergic diseases. TNS1 is a promising candidate gene because of its link to lung and skin diseases with possible interactive effect with tobacco smoke exposure. CONCLUSIONS This first GWIS of asthma-plus-eczema with ETS exposure underlines the importance of studying sub-phenotypes such as co-morbidities as well as G-E interactions to detect new susceptibility genes.
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Affiliation(s)
- Patricia Margaritte-Jeannin
- Université Paris Cité, UMRS 1124, INSERM, Genomic Epidemiology and Multifactorial Diseases Group, Paris, France
| | - Raphaël Vernet
- Université Paris Cité, UMRS 1124, INSERM, Genomic Epidemiology and Multifactorial Diseases Group, Paris, France
| | - Ashley Budu-Aggrey
- Medical Research Council (MRC) Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Markus Ege
- Dr von Hauner Children's Hospital, Ludwig Maximilian University; Institute of Asthma and Allergy prevention, Helmholtz Centre Munich; Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research, Munich, Germany
| | - Anne-Marie Madore
- Département des sciences fondamentales, Centre intersectoriel en santé durable (CISD), Université du Québec à Chicoutimi, Saguenay, QC, Canada
| | - Christophe Linhard
- Université Paris Cité, UMRS 1124, INSERM, Genomic Epidemiology and Multifactorial Diseases Group, Paris, France
| | - Hamida Mohamdi
- Université Paris Cité, UMRS 1124, INSERM, Genomic Epidemiology and Multifactorial Diseases Group, Paris, France
| | - Erika von Mutius
- Dr von Hauner Children's Hospital, Ludwig Maximilian University; Institute of Asthma and Allergy prevention, Helmholtz Centre Munich; Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research, Munich, Germany
| | - Raquell Granell
- Medical Research Council (MRC) Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Florence Demenais
- Université Paris Cité, UMRS 1124, INSERM, Genomic Epidemiology and Multifactorial Diseases Group, Paris, France
| | - Cathrine Laprise
- Département des sciences fondamentales, Centre intersectoriel en santé durable (CISD), Université du Québec à Chicoutimi, Saguenay, QC, Canada
| | - Emmanuelle Bouzigon
- Université Paris Cité, UMRS 1124, INSERM, Genomic Epidemiology and Multifactorial Diseases Group, Paris, France
| | - Marie-Hélène Dizier
- Université Paris Cité, UMRS 1124, INSERM, Genomic Epidemiology and Multifactorial Diseases Group, Paris, France.
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Liu D, Zhang Y, Fang H, Yuan J, Ji L. The progress of research into pseudophosphatases. Front Public Health 2022; 10:965631. [PMID: 36106167 PMCID: PMC9464862 DOI: 10.3389/fpubh.2022.965631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/09/2022] [Indexed: 01/24/2023] Open
Abstract
Pseudophosphatases are a class of phosphatases that mutate at the catalytically active site. They play important parts in many life processes and disorders, e.g., cell apoptosis, stress reaction, tumorigenesis, axon differentiation, Charcot-Marie-Tooth, and metabolic dysfunction. The present review considers the structures and action types of pseudophosphatases in four families, protein tyrosine phosphatases (PTPs), myotube protein phosphatases (MTMs), phosphatases and tensin homologues (PTENs) and dual specificity phosphatases (DUSPs), as well as their mechanisms in signaling and disease. We aimed to provide reference material for the research and treatment of related diseases.
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Affiliation(s)
- Deqiang Liu
- College of Life Sciences, Shandong Normal University, Jinan, China
| | - Yiming Zhang
- College of Life Sciences, Shandong Normal University, Jinan, China
| | - Hui Fang
- College of Life Sciences, Shandong Normal University, Jinan, China
| | - Jinxiang Yuan
- College of Life Sciences, Shandong Normal University, Jinan, China,The Collaborative Innovation Center, Jining Medical University, Jining, China,*Correspondence: Jinxiang Yuan
| | - Lizhen Ji
- College of Life Sciences, Shandong Normal University, Jinan, China,Lizhen Ji
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Liu FF, Pei Y. MicroRNA192 Promotes Metastasis and Invasion of Breast Cancer via Targeting Tensin1 and Enhancing Cell Division Control Protein 42 Homolog (CDC42) Expression. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.3068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We aimed to dissect the biological impacts and mechanisms of MicroRNA192 in breast cancer metastasis and invasion. Tumor tissues from patients and breast cancer cells were used to measure miR-192 level via RT-PCR. The miR-192 mimics, miR-192 inhibitor, si-Tensin1 and corresponding negative
controls were transfected into cells followed by analysis of cell invasion by transwell assay and CDC42 level by western blot. Afterwards, a tumor transplantation model was established to assess the malignancy progression and migration. The human miR-192 accounted for approximately 14% of
those overexpressed miRNAs. Overexpression of miR-192 promoted malignant cell invasion, while knockdown of endogenous miR-192 significantly decreased cell invasion, which suggested that miR-192 could exert a promotive factor in the invasive characteristic of breast cancer cells in vitro.
In contrast to control group, tumor metastasis was significantly provoked in the miR-192 overexpression group. miR-192 directly targeted and suppressed the expression of Tensin1. miR-192 enhanced the malignant invasiveness by regulating Cdc42 and was corrected with correlation with the survival
of patients. High miR-192 level is related to the malignant invasiveness and metastatic behavior, as well as the poor prognosis of patients with breast cancer via activating Cdc42 and targeting Tensin1.
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Affiliation(s)
- Fang-Fang Liu
- Department of Thyroid and Breast Surgery, The Affiliated Huai’an Hospital of Xuzhou Medical University, Huaian, Jiangsu, 223002, China
| | - Yin Pei
- Department of Nuclear Medicine, The First Hospital of Hebei Medicine University, Shijiazhuang, Hebei, 050000, China
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Mattei AM, Smailys JD, Hepworth EMW, Hinton SD. The Roles of Pseudophosphatases in Disease. Int J Mol Sci 2021; 22:ijms22136924. [PMID: 34203203 PMCID: PMC8269279 DOI: 10.3390/ijms22136924] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/10/2021] [Accepted: 06/24/2021] [Indexed: 01/07/2023] Open
Abstract
The pseudophosphatases, atypical members of the protein tyrosine phosphatase family, have emerged as bona fide signaling regulators within the past two decades. Their roles as regulators have led to a renaissance of the pseudophosphatase and pseudoenyme fields, catapulting interest from a mere curiosity to intriguing and relevant proteins to investigate. Pseudophosphatases make up approximately fourteen percent of the phosphatase family, and are conserved throughout evolution. Pseudophosphatases, along with pseudokinases, are important players in physiology and pathophysiology. These atypical members of the protein tyrosine phosphatase and protein tyrosine kinase superfamily, respectively, are rendered catalytically inactive through mutations within their catalytic active signature motif and/or other important domains required for catalysis. This new interest in the pursuit of the relevant functions of these proteins has resulted in an elucidation of their roles in signaling cascades and diseases. There is a rapid accumulation of knowledge of diseases linked to their dysregulation, such as neuropathies and various cancers. This review analyzes the involvement of pseudophosphatases in diseases, highlighting the function of various role(s) of pseudophosphatases involvement in pathologies, and thus providing a platform to strongly consider them as key therapeutic drug targets.
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Eapen MS, Lu W, Hackett TL, Singhera GK, Mahmood MQ, Hardikar A, Ward C, Walters EH, Sohal SS. Increased myofibroblasts in the small airways, and relationship to remodelling and functional changes in smokers and COPD patients: potential role of epithelial-mesenchymal transition. ERJ Open Res 2021; 7:00876-2020. [PMID: 34109247 PMCID: PMC8181830 DOI: 10.1183/23120541.00876-2020] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 03/10/2021] [Indexed: 12/11/2022] Open
Abstract
Introduction Previous reports have shown epithelial-mesenchymal transition (EMT) as an active process that contributes to small airway fibrotic pathology. Myofibroblasts are highly active pro-fibrotic cells that secrete excessive and altered extracellular matrix (ECM). Here we relate small airway myofibroblast presence with airway remodelling, physiology and EMT activity in smokers and COPD patients. Methods Lung resections from nonsmoker controls, normal lung function smokers and COPD current and ex-smokers were stained with anti-human α-smooth muscle actin (SMA), collagen 1 and fibronectin. αSMA+ cells were computed in reticular basement membrane (Rbm), lamina propria and adventitia and presented per mm of Rbm and mm2 of lamina propria. Collagen-1 and fibronectin are presented as a percentage change from normal. All analyses including airway thickness were measured using Image-pro-plus 7.0. Results We found an increase in subepithelial lamina propria (especially) and adventitia thickness in all pathological groups compared to nonsmoker controls. Increases in αSMA+ myofibroblasts were observed in subepithelial Rbm, lamina propria and adventitia in both the smoker and COPD groups compared to nonsmoker controls. Furthermore, the increase in the myofibroblast population in the lamina propria was strongly associated with decrease in lung function, lamina propria thickening, increase in ECM protein deposition, and finally EMT activity in epithelial cells. Conclusions This is the first systematic characterisation of small airway myofibroblasts in COPD based on their localisation, with statistically significant correlations between them and other pan-airway structural, lung function and ECM protein changes. Finally, we suggest that EMT may be involved in such changes.
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Affiliation(s)
- Mathew Suji Eapen
- Respiratory Translational Research Group, Dept of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia
| | - Wenying Lu
- Respiratory Translational Research Group, Dept of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia
| | - Tillie L Hackett
- Dept of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada.,UBC Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, Canada
| | - Gurpreet Kaur Singhera
- UBC Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, Canada.,Dept of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Malik Q Mahmood
- School of Medicine, Deakin University, Waurn Ponds, Australia
| | - Ashutosh Hardikar
- Respiratory Translational Research Group, Dept of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia.,Dept of Cardiothoracic Surgery, Royal Hobart Hospital, Hobart, Australia
| | - Chris Ward
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Eugene Haydn Walters
- School of Medicine, and Menzies Institute of Medical Research, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, Australia.,These authors contributed equally
| | - Sukhwinder Singh Sohal
- Respiratory Translational Research Group, Dept of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia.,These authors contributed equally
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Li J, Ye Z. The Potential Role and Regulatory Mechanisms of MUC5AC in Chronic Obstructive Pulmonary Disease. Molecules 2020; 25:molecules25194437. [PMID: 32992527 PMCID: PMC7582261 DOI: 10.3390/molecules25194437] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/14/2020] [Accepted: 09/21/2020] [Indexed: 12/15/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is associated with high morbidity and mortality globally. Studies show that airway mucus hypersecretion strongly compromises lung function, leading to frequent hospitalization and mortality, highlighting an urgent need for effective COPD treatments. MUC5AC is known to contribute to severe muco-obstructive lung diseases, worsening COPD pathogenesis. Various pathways are implicated in the aberrant MUC5AC production and secretion MUC5AC. These include signaling pathways associated with mucus-secreting cell differentiation [nuclear factor-κB (NF-κB)and IL-13-STAT6- SAM pointed domain containing E26 transformation-specific transcription factor (SPDEF), as well as epithelial sodium channel (ENaC) and cystic fibrosis transmembrane conductance regulator (CFTR)], and signaling pathways related to mucus transport and excretion-ciliary beat frequency (CBF). Various inhibitors of mucus hypersecretion are in clinical use but have had limited benefits against COPD. Thus, novel therapies targeting airway mucus hypersecretion should be developed for effective management of muco-obstructive lung disease. Here, we systematically review the mechanisms and pathogenesis of airway mucus hypersecretion, with emphasis on multi-target and multi-link intervention strategies for the elucidation of novel inhibitors of airway mucus hypersecretion.
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Affiliation(s)
- Jingyuan Li
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China;
| | - Zuguang Ye
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China;
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Correspondence: ; Tel./Fax: +86-10-8425-2805
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