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Wang X, Liu X, AGA EB, Tse WM, Tse KWG, Ye B. Protective effect of the total alkaloid extract from Bulbus Fritillariae Pallidiflorae on cigarette smoke-induced Beas-2B cell injury model and transcriptomic analysis. Food Nutr Res 2024; 68:10689. [PMID: 38974914 PMCID: PMC11227262 DOI: 10.29219/fnr.v68.10689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/19/2024] [Accepted: 05/03/2024] [Indexed: 07/09/2024] Open
Abstract
Background Bulbus Fritillariae Pallidiflorae (BFP) is a traditional Chinese medicine that has long been used to treat lung diseases, but the active components and mechanism are still unclear. Objective This study aimed to investigate the effect and mechanism of the total alkaloid extract from BFP (BFP-TA) on cigarette smoke extract (CSE)-induced Beas-2B cells injury. Design The Beas-2B cells injury model was induced by 2% CSE, then the effect of BFP-TA on the levels of total antioxidant capacity (T-AOC), superoxide dismutase (SOD) and malondialdehyde (MDA) was detected according to the instructions of the T-AOC assay kit, the SOD detection kit and the MDA detection kit, and the production of ROS was detected by fluorescence microscopy. The effect of BFP-TA on Beas-2B cells apoptosis was detected by flow cytometry, and the effect of BFP-TA on related protein expression was detected by western blot. Subsequently, the effect of BFP-TA on differentially expressed genes (DEGs) in CSE-induced Beas-2B cells was studied by transcriptomic sequencing, and the expression of DEGs was verified by quantitative real-time polymerase chain reaction (qPCR). Results The results showed that BFP-TA could attenuate CSE-induced oxidative damage in Beas-2B cells by elevating T-AOC and SOD levels while inhibiting ROS and MDA levels, and the mechanism was potentially related to the SIRT1/Nrf2/Keap1 signaling pathway. Furthermore, BFP-TA could inhibit CSE-induced apoptosis by inhibiting the protein expression of Bax, MST1 and FOXO3a, and exert anti-inflammatory effect by inhibiting the activation of MAPK signaling pathway. Subsequently, transcriptome analysis and qPCR validation showed that BFP-TA could alleviate inflammation, oxidative stress, apoptosis and lipid metabolism disorders by regulating the expression of DEGs in PPAR and PI3K-Akt signaling pathways, thereby exerting a protective effect against CSE-induced Beas-2B cell injury. Conclusion This study is the first to demonstrate that BFP-TA could exert a protective effect on CSE-induced Beas-2B cell injury by exerting anti-inflammatory, antioxidant, anti-apoptotic and regulate lipid metabolism disorders.
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Affiliation(s)
- Xiaoyu Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Xiao Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Er-Bu AGA
- Medical College of Tibet University, Lasa, Tibet, China
| | - Wai Ming Tse
- Nin Jiom Medicine Manufactory (H.K.) Limited, Hong Kong, China
| | | | - Bengui Ye
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
- Medical College of Tibet University, Lasa, Tibet, China
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Zhang F, Weng X, Zhu J, Tang Q, Lei M, Zhou W. Identification and validation of three potential biomarkers and immune microenvironment for in severe asthma in microarray and single-cell datasets. J Asthma 2024:1-13. [PMID: 38647226 DOI: 10.1080/02770903.2024.2335562] [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: 03/10/2024] [Accepted: 03/22/2024] [Indexed: 04/25/2024]
Abstract
Objective: The aim of this study was to identify genetic biomarkers and cellular communications associated with severe asthma in microarray data sets and single cell data sets. The potential gene expression levels were verified in a mouse model of asthma.Methods: We identified differentially expressed genes from the microarray datasets (GSE130499 and GSE63142) of severe asthma, and then constructed models to screen the most relevant biomarkers to severe asthma by machine learning algorithms (LASSO and SVM-RFE), with further validation of the results by GSE43696. Single-cell datasets (GSE193816 and GSE227744) were identified for potential biomarker-specific expression and intercellular communication. Finally, The expression levels of potential biomarkers were verified with a mouse model of asthma.Results: The 73 genes were differentially expressed between severe asthma and normal control. LASSO and SVM-RFE recognized three genes BCL3, DDIT4 and S100A14 as biomarkers of severe asthma and had good diagnostic effect. Among them, BCL3 transcript level was down-regulated in severe asthma, while S100A14 and DDIT4 transcript levels were up-regulated. The transcript levels of the three genes were confirmed in the mouse model. Infiltration of neutrophils and mast cells were found to be increased in severe asthma and may be associated with bronchial epithelial cells through BMP and NRG signalingConclusions: We identified three differentially expressed genes (BCL3, DDIT4 and S100A14) of diagnostic significance that may be involved in the development of severe asthma and these gene expressions could be serviced as biomarker of severe asthma and investigating the function roles could bring new insights into the underlying mechanisms.
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Affiliation(s)
- Fuying Zhang
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, Hunan, China
| | - Xiang Weng
- The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jiabao Zhu
- The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Qin Tang
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, Hunan, China
| | - Mingsheng Lei
- Zhangjiajie Hospital Affiliated to Hunan Normal University, Zhangjiajie, Hunan, China
- Zhangjiajie College, Zhangjiajie, Hunan, China
| | - Weimin Zhou
- The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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Liu Y, Li P, Jiang T, Li Y, Wang Y, Cheng Z. Epidermal growth factor receptor in asthma: A promising therapeutic target? Respir Med 2023; 207:107117. [PMID: 36626942 DOI: 10.1016/j.rmed.2023.107117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/09/2023]
Abstract
Activation of the epidermal growth factor receptor (EGFR) pathway is involved in the pathogenesis of asthma. Although decades of intensive research have focused on the role of EGFR in asthma, the specific mechanisms and pathways of EGFR signaling remain unclear. Various reports have indicated that inhibition of EGFR improves the pathological features in asthma models. However, extending these experimental findings to clinical applications is difficult. Several measures can be adopted to promote clinical application of EGFR inhibitors. This review focuses on the role of EGFR in the pathogenesis of asthma and the development of a potentially novel therapeutic target for asthma.
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Affiliation(s)
- Ye Liu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Pengfei Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Tianci Jiang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yue Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yu Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Zhe Cheng
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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CTNNAL1 enhances glucocorticoid sensitivity in HDM-induced asthma mouse model through deactivating hsp90 signaling pathway. Life Sci 2023; 313:121304. [PMID: 36535402 DOI: 10.1016/j.lfs.2022.121304] [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: 08/03/2022] [Revised: 12/08/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
AIMS Adhesion molecules play vital roles in the induction of airway hyperresponsiveness (AHR) or airway inflammation. The down-regulation of catenin alpha-like 1 (CTNNAL1) in the bronchial epithelial cells of asthma patients and mice models has been noted in our previous study. In this work, we further explore the underlying mechanism of CTNNAL1 in asthma. MAIN METHODS We constructed a house dust mite (HDM)-induced asthma animal model on control mice and applied CTNNAL1-siRNA transfection to create CTNNAL1-deficient mice. KEY FINDINGS We documented much more severe airway inflammation and increased leukocyte infiltration in the lungs of the CTNNAL1-deficient mice comparing to control mice, along with elevated expression of inflammatory cytokines. Dexamethasone (DEX) treatment led to less reduced inflammation in CTNNAL1-deficient mice compared with control mice. Immunoprecipitation confirmed the interaction between heat shock protein90 (hsp90) and CTNNAL1. The expression of hsp90 was upregulated after CTNNAL1 silencing. Meanwhile, the use of hsp90 inhibitor geldanamycin significantly decreased the expression of NR3C1, ICAM-1 and the ratio of p-p65/p65 in CTNNAL1-silenced 16HBE14o- cells. Both geldanamycin and DEX could function to suppress the expression of ICAM-1 and the phosphorylation level of p65. Nevertheless, the anti-inflammatory effect of DEX proved less potent than geldanamycin in the CTNNAL1-silenced group. The combined therapy of geldanamycin and DEX significantly decreased the inflammatory responses in CTNNAL1-deficient HBE cells than DEX monotherapy. SIGNIFICANCE Our study corroborates that CTNNAL1 deficiency induced aggravated airway inflammation and rendered insensitivity to glucocorticoids via triggering hsp90 signaling pathway.
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Wang Q, Sun N, Zhang M. Identification and Validation of Anoikis-Related Signatures for Predicting Prognosis in Lung Adenocarcinoma with Machine Learning. Int J Gen Med 2023; 16:1833-1844. [PMID: 37213475 PMCID: PMC10199682 DOI: 10.2147/ijgm.s409006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/04/2023] [Indexed: 05/23/2023] Open
Abstract
Background Lung adenocarcinoma (LUAD) is an aggressive cancer that has an extremely poor prognosis. As well as facilitating the detachment of cancer cells from the primary tumor site, anoikis plays an important role in cancer metastasis. Few studies to date, however, have examined the role of anoikis in LUAD, in patient prognosis. Methods A total of 316 anoikis-related genes (ANRGs) integrated from Genecards and Harmonizome portals. LUAD transcriptome data were retrieved from the Genotype-Tissue Expression Project (GEO) and The Cancer Genome Atlas (TCGA). Anoikis-related prognostic genes (ANRGs) were primarily screened by univariate Cox regression. All ANRGs were included in the Least Absolute Shrinkage and Selection Operator (LASSO) Cox regression model to construct the powerful prognostic signature. This signature was validated and assessed using the Kaplan-Meier method as well as univariate and multivariate Cox regression analyses. Anoikis-related regulators of risk score were identified using a XG-boost machine learning model. The expression of ITGB4 protein was examined in a ZhengZhou University (ZZU) tissue cohort by immunohistochemistry, and the potential mechanisms of action of ITGB4 in LUAD were explored by GO, KEGG, and ingenuity pathway analyses and by GSEA. Results A risk score signature was constructed based on eight ANRGs, with high risk scores found to closely correlate with unfavorable clinical features. ITGB4 expression may be associated with 5-year over survival, with immunohistochemistry showed that the expression of ITGB4 was higher in LUAD than in nontumor tissues. Enrichment analysis suggested that ITGB4 may promote LUAD development by targeting E2F, MYC, and oxidative phosphorylation signaling pathways. Conclusion Our anoikis-related signature from RNA-seq data may be a novel prognostic biomarker in patients with LUAD. It may help physicians develop personalized LUAD treatments in clinical practice. Moreover, ITGB4 may affect the development of LUAD through the oxidative phosphorylation pathway.
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Affiliation(s)
- Qilong Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
- The Academy of Medical Science of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
| | - Nannan Sun
- Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
| | - Mingzhi Zhang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People’s Republic of China
- Correspondence: Mingzhi Zhang, Department of Oncology, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe Road, Zhengzhou, Henan, 450052, People’s Republic of China, Email
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Wu J, Wang W, Li Z, Ye X. The prognostic and immune infiltration role of ITGB superfamily members in non-small cell lung cancer. Am J Transl Res 2022; 14:6445-6466. [PMID: 36247270 PMCID: PMC9556481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 08/02/2022] [Indexed: 06/16/2023]
Abstract
PURPOSE We aimed to explore the prognostic value of integrin-β superfamily members (ITGBs) and their role in immune cell infiltration in non-small cell lung cancer (NSCLC). MATERIALS AND METHODS Study cases were acquired from The Cancer Genome Atlas database and The Human Protein Atlas. We then used R package and several online tools to analyze and visualize the roles of ITGBs in lung adenocarcinoma (LUAD) and lung squamous cell carcinoma (LUSC). RESULTS We found that ITGBs were differentially expressed in NSCLC. In LUAD, high expression of ITGB1 and ITGB4 was an independent risk factor for poor prognosis, and ITGB7 was an independent protective factor for overall survival; in LUSC, high expression of ITGB1, 3, 5, and 6 was associated with poor prognosis, and ITGB8 was an independent protective factor for disease-specific survival. Protein-protein interaction networks for the most associated co-expressed genes revealed the following target genes of ITGBs: PTPRC, ITGAM, and ITGB2 in LUAD and FN1, PTPRC, and ITGB2 in LUSC. Gene ontology analysis revealed that functions related to adhesion, junction, and binding were highly enriched in LUAD and LUSC. ITGBs were significantly associated with immune cell infiltration and the expression of immunomodulation-related genes in LUAD and LUSC. CONCLUSION ITGBs were differentially expressed in NSCLC. ITGB1, 4, and 7 and ITGB1, 3, 5, 6, and 8 were found as prognostic markers in LUAD and LUSC, respectively. ITGBs were significantly associated with immune cell infiltration and the expression of immunomodulation-related genes.
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Affiliation(s)
- Juan Wu
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University Nanchang 330006, Jiangxi, China
| | - Wenjun Wang
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University Nanchang 330006, Jiangxi, China
| | - Zhouhua Li
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University Nanchang 330006, Jiangxi, China
| | - Xiaoqun Ye
- Department of Respiratory Diseases, The Second Affiliated Hospital of Nanchang University Nanchang 330006, Jiangxi, China
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7
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Du X, Yuan L, Yao Y, Yang Y, Zhou K, Wu X, Wang L, Qin L, Li W, Xiang Y, Qu X, Liu H, Qin X, Yang M, Liu C. ITGB4 Deficiency in Airway Epithelium Aggravates RSV Infection and Increases HDM Sensitivity. Front Immunol 2022; 13:912095. [PMID: 35958591 PMCID: PMC9357881 DOI: 10.3389/fimmu.2022.912095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/13/2022] [Indexed: 11/16/2022] Open
Abstract
Background The heterogeneity of RSV-infected pathology phenotype in early life is strongly associate with increased susceptibility of asthma in later life. However, the inner mechanism of this heterogeneity is still obscure. ITGB4 is a down-regulated adhesion molecular in the airway epithelia of asthma patients which may participate in the regulation of RSV infection related intracellular pathways. Object This study was designed to observe the involvement of ITGB4 in the process of RSV infection and the effect of ITGB4 deficiency on anti-RSV responses of airway epithelia. Results RSV infection caused a transient decrease of ITGB4 expression both in vitro and in vivo. Besides, ITGB4 deficiency induced not only exacerbated RSV infection, but also enhanced HDM sensitivity in later life. Moreover, IFN III (IFN-λ) was significantly suppressed during RSV infection in ITGB4 deficient airway epithelial cells. Furthermore, the suppression of IFN-λ were regulated by IRF-1 through the phosphorylation of EGFR in airway epithelial cells after RSV infection. Conclusion These results demonstrated the involvement of ITGB4 deficiency in the development of enhance RSV infection in early life and the increased HDM sensitivity in later life by down-regulation of IFN-λ through EGFR/IRF-1 pathway in airway epithelial cells.
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Affiliation(s)
- Xizi Du
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, China
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Lin Yuan
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Ye Yao
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Yu Yang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Kai Zhou
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Xinyu Wu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Leyuan Wang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Ling Qin
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, China
| | - Wenkai Li
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, Australia
| | - Yang Xiang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Xiangping Qu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Huijun Liu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Xiaoqun Qin
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Ming Yang
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, NSW, Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute (HMRI), University of Newcastle, New Lambton Heights, NSW, Australia
| | - Chi Liu
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, China
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
- Research Center of China-Africa Infectious Diseases, Xiangya School of Medicine Central South University, Changsha, China
- *Correspondence: Chi Liu,
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Chi Y, Chen Y, Jiang W, Huang W, Ouyang M, Liu L, Pan Y, Li J, Qu X, Liu H, Liu C, Deng L, Qin X, Xiang Y. Deficiency of Integrin β4 Results in Increased Lung Tissue Stiffness and Responds to Substrate Stiffness via Modulating RhoA Activity. Front Cell Dev Biol 2022; 10:845440. [PMID: 35309934 PMCID: PMC8926985 DOI: 10.3389/fcell.2022.845440] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/11/2022] [Indexed: 12/12/2022] Open
Abstract
The interaction between extracellular matrix (ECM) and epithelial cells plays a key role in lung development. Our studies found that mice with conditional integrin β4 (ITGB4) knockout presented lung dysplasia and increased stiffness of lung tissues. In accordance with our previous studies regarding the functions of ITGB4 in bronchial epithelial cells (BECs), we hypothesize that the decreased ITGB4 expression during embryonic stage leads to abnormal ECM remodeling and increased tissue stiffness, thus impairing BECs motility and compromising lung development. In this study, we examined lung tissue stiffness in normal and ITGB4 deficiency mice using Atomic Force Microscopy (AFM), and demonstrated that ITGB4 deficiency resulted in increased lung tissue stiffness. The examination of ECM components collagen, elastin, and lysyl oxidase (LOX) family showed that the expression of type VI collagen, elastin and LOXL4 were significantly elevated in the ITGB4-deficiency mice, compared with those in normal groups. Airway epithelial cell migration and proliferation capacities on normal and stiff substrates were evaluated through video-microscopy and flow cytometry. The morphology of the cytoskeleton was detected by laser confocal microscopy, and RhoA activities were determined by fluorescence resonance energy transfer (FRET) microscopy. The results showed that migration and proliferation of ITGB4 deficiency cells were noticeably inhibited, along decreased cytoskeleton stabilization, and hampered RhoA activity, especially for cells cultured on the stiff substrate. These results suggest that decreased ITGB4 expression results in increased lung tissue stiffness and impairs the adaptation of bronchial epithelial cells to substrate stiffness, which may be related to the occurrence of broncho pulmonary dysplasia.
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Affiliation(s)
- Yinxiu Chi
- School of Basic Medicine, Central South University, Changsha, China
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
- Longdong College, Qingyang, China
| | - Yu Chen
- School of Basic Medicine, Central South University, Changsha, China
| | - Wang Jiang
- School of Basic Medicine, Central South University, Changsha, China
| | - Wenjie Huang
- School of Basic Medicine, Central South University, Changsha, China
- Affiliated Liuzhou Maternity and Child Healthcare Hospital of Guangxi University of Science and Technology, Liuzhou, China
| | - Mingxing Ouyang
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
| | - Lei Liu
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
| | - Yan Pan
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
| | - Jingjing Li
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
| | - Xiangping Qu
- School of Basic Medicine, Central South University, Changsha, China
| | - Huijun Liu
- School of Basic Medicine, Central South University, Changsha, China
| | - Chi Liu
- School of Basic Medicine, Central South University, Changsha, China
| | - Linhong Deng
- Changzhou Key Laboratory of Respiratory Medical Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou, China
- *Correspondence: Linhong Deng, ; Xiaoqun Qin, ; Yang Xiang,
| | - Xiaoqun Qin
- School of Basic Medicine, Central South University, Changsha, China
- *Correspondence: Linhong Deng, ; Xiaoqun Qin, ; Yang Xiang,
| | - Yang Xiang
- School of Basic Medicine, Central South University, Changsha, China
- *Correspondence: Linhong Deng, ; Xiaoqun Qin, ; Yang Xiang,
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Wu D, Jiang W, Liu C, Liu L, Li F, Ma X, Pan L, Liu C, Qu X, Liu H, Qin X, Xiang Y. CTNNAL1 participates in the regulation of mucus overproduction in HDM‐induced asthma mouse model through the YAP‐ROCK2 pathway. J Cell Mol Med 2022; 26:1656-1671. [PMID: 35092120 PMCID: PMC8899158 DOI: 10.1111/jcmm.17206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 12/24/2021] [Accepted: 01/12/2022] [Indexed: 01/26/2023] Open
Abstract
Our previous study indicated that adhesion molecule catenin alpha‐like 1(CTNNAL1) is downregulated in airway epithelial cells of asthma patients and asthma animal model but little is known about how the CTNNAL1 affects asthma pathogenesis. To reveal the direct relationship between asthma and CTNNAL1, CTNNAL1‐deficient mouse model in bronchopulmonary tissue was constructed by introducing CTNNAL1‐siRNA sequence using adeno‐associated virus (AAV) as vector. The mouse model of asthma was established by stimulation of house dust mite (HDM). After HDM‐challenged, there was marked airway inflammation, especially mucus hypersecretion in the CTNNAL1‐deficient mice. In addition, the CTNNAL1‐deficient mice exhibited an increase of lung IL‐4 and IL‐13 levels, as well as a significant increase of goblet cell hyperplasia and MUC5AC after HDM exposure. The expression of Yes‐associated protein (YAP), protein that interacted with α‐catenin, was downregulated after CTNNAL1 silencing and was upregulated due to its overexpression. In addition, the interaction between CTNNAL1 and YAP was confirmed by CO‐IP. Besides, inhibition of YAP could decrease the secretion of MUC5AC, IL‐4 and IL‐13 in CTNNAL1‐deficient 16HBE14o‐cells. Above results indicated us that CTNNAL1 regulated mucus hypersecretion through YAP pathway. In addition, the expression of ROCK2 increased when CTNNAL1 was silenced and decreased after YAP silencing, and inhibition of YAP decreased the expression of ROCK2 in CTNNAL1‐deficient HBE cells. Inhibition of ROCK2 decreased MUC5AC expression and IL‐13 secretion. In all, our study demonstrates that CTNNAL1 plays an important role in HDM‐induced asthma, mediating mucus secretion through the YAP‐ROCK2 pathway.
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Affiliation(s)
- Di Wu
- Department of Physiology School of Basic Medical Science Central South University Changsha China
| | - Wang Jiang
- Department of Medical Microbiology and Parasitology School of Basic Medical Sciences Capital Medical University Beijing China
| | - Caixia Liu
- School of Integrated Chinese and Western Medicine Hunan University of Chinese Medicine Changsha China
| | - Lexin Liu
- Department of Physiology School of Basic Medical Science Central South University Changsha China
| | - Furong Li
- Department of Physiology School of Basic Medical Science Central South University Changsha China
| | - Xiaodi Ma
- Department of Physiology School of Basic Medical Science Central South University Changsha China
| | - Lang Pan
- Department of Physiology School of Basic Medical Science Central South University Changsha China
| | - Chi Liu
- Department of Physiology School of Basic Medical Science Central South University Changsha China
| | - Xiangping Qu
- Department of Physiology School of Basic Medical Science Central South University Changsha China
| | - Huijun Liu
- Department of Physiology School of Basic Medical Science Central South University Changsha China
| | - Xiaoqun Qin
- Department of Physiology School of Basic Medical Science Central South University Changsha China
| | - Yang Xiang
- Department of Physiology School of Basic Medical Science Central South University Changsha China
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10
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Du X, Yang Y, Yang M, Yuan L, Wang L, Wu M, Zhou K, Li W, Xiang Y, Qu X, Liu H, Qin X, Liu C. ITGB4 deficiency induces mucus hypersecretion by upregulating MUC5AC in RSV-infected airway epithelial cells. Int J Biol Sci 2022; 18:349-359. [PMID: 34975337 PMCID: PMC8692133 DOI: 10.7150/ijbs.66215] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/20/2021] [Indexed: 12/13/2022] Open
Abstract
Respiratory syncytial virus (RSV) infection is the main cause of bronchiolitis in children. Excessive mucus secretion is one of the primary symbols in RSV related lower respiratory tract infections (RSV-related LRTI), which is closely associated with the occurrence and development of asthma in later life. Integrin β4 (ITGB4) is down-regulated in the airway epithelial cells (AECs) of asthma patients which plays a critical role in the pathogenesis of asthma. However, whether ITGB4 is involved in the pathological processes of RSV infection remains unclear. In this study, we found that decreased expression of ITGB4 was negatively correlated with the level of MUC5AC in childhood AECs following RSV infection. Moreover, ITGB4 deficiency led to mucus hypersecretion and MUC5AC overexpression in the small airway of RSV-infected mice. MUC5AC expression was upregulated by ITGB4 in HBE cells through EGFR, ERK and c-Jun pathways. EGFR inhibitors treatment inhibited mucus hypersecretion and MUC5AC overexpression in ITGB4-deficient mice after RSV infection. Together, these results demonstrated that epithelial ITGB4 deficiency induces mucus hypersecretion by upregulating the expression of MUC5AC through EGFR/ERK/c-Jun pathway, which further associated with RSV-related LRTI.
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Affiliation(s)
- Xizi Du
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China
| | - Yu Yang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China
| | - Ming Yang
- Centre for Asthma and Respiratory Disease, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle and Hunter Medical Research Institute, Callaghan, New South Wales, Australia
| | - Lin Yuan
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China
| | - Leyuan Wang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China
| | - Mengping Wu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China
| | - Kai Zhou
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China
| | - Wenkai Li
- Department of Pediatrics, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Hunan, China
| | - Yang Xiang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China
| | - Xiangping Qu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China
| | - Huijun Liu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China
| | - Xiaoqun Qin
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China
| | - Chi Liu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, Hunan, China.,Research Center of China-Africa Infectious Diseases, Xiangya School of Medicine Central South University, Changsha, Hunan, China
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11
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Jiang W, Wang JM, Luo JH, Chen Y, Pi J, Ma XD, Liu CX, Zhou Y, Qu XP, Liu C, Liu HJ, Qin XQ, Xiang Y. Airway epithelial integrin β4-deficiency exacerbates lipopolysaccharide-induced acute lung injury. J Cell Physiol 2021; 236:7711-7724. [PMID: 34018612 DOI: 10.1002/jcp.30422] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 04/29/2021] [Accepted: 05/06/2021] [Indexed: 12/17/2022]
Abstract
Airway epithelial cells, the first barrier of the respiratory tract, play an indispensable role in innate immunity. Integrin β4 (ITGB4) is a structural adhesion molecule that is involved in the pathological progression of acute inflammatory diseases and is downregulated in asthmatic patients. Research has shown that endothelial ITGB4 has proinflammatory properties in acute lung injury (ALI). However, the role of epithelial ITGB4 in a murine ALI model is still unknown. This study investigated the role of ITGB4 in lipopolysaccharide (LPS)-induced ALI. We found that ITGB4 in the airway epithelium had remarkably increased after the introduction of LPS in vivo and in vitro. Then, we constructed airway epithelial cell-specific ITGB4 knockout (ITGB4-/- ) mice to study its role in ALI. At a time point of 12 h after the tracheal injection of LPS, ITGB4-/- mice showed increased macrophages (mainly M1-type macrophages) and neutrophil infiltration into the lungs; inflammation-related proteins including interleukin (IL)-6, tumor necrosis factor, and IL-17A were significantly elevated compared to their levels in ITGB4+/+ mice. Furthermore, we investigated the role of ITGB4 in the anti-inflammatory response. Intriguingly, in the ITGB4-/- + LPS group, we found significantly reduced expression of anti-inflammatory factors, including IL-10 messenger RNA (mRNA) and ARG-1 mRNA. We also observed that monocyte chemotactic protein (MCP-1) increased significantly both in vivo and in vitro. Airway epithelium activates macrophages, most likely driven by MCP-1, which we confirmed in the coculture of epithelia and macrophages. These phenomena indicate that ITGB4 in airway epithelial cells plays an important role in the process of inflammation and activation of macrophages in ALI. Overall, these data demonstrated a novel link between airway epithelial ITGB4 and the inflammatory response in LPS-induced ALI.
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Affiliation(s)
- Wang Jiang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Jin-Mei Wang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Jin-Hua Luo
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yu Chen
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Jiao Pi
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Xiao-Di Ma
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Cai-Xia Liu
- School of Integrated Chinese and Western Medicine, Hunan University of Traditional Chinese Medicine, Changsha, Hunan, China
| | - Yang Zhou
- Functional Experimental Center, Hunan University of Medicine, Huaihua, Hunan, China
| | - Xiang-Ping Qu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Chi Liu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Hui-Jun Liu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Xiao-Qun Qin
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yang Xiang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
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12
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Wu M, Yang Y, Yuan L, Yang M, Wang L, Du X, Qin L, Wu S, Xiang Y, Qu X, Liu H, Qin X, Liu C. DNA methylation down-regulates integrin β4 expression in asthmatic airway epithelial cells. Clin Exp Allergy 2020; 50:1127-1139. [PMID: 32618381 DOI: 10.1111/cea.13697] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 06/10/2020] [Accepted: 06/17/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Integrin β4 (ITGB4) is a hemi-desmosome protein which is downregulated in the airway epithelial cells of asthma patients. The proximal promoters and exons of ITGB4 contain CpG islands or multiple CpG sites both in human and mice, which indicated the possible methylation regulation of ITGB4 in airway epithelial cells. OBJECTIVE We sought to unveil that DNA methylation regulates the decreased ITGB4 during the pathogenesis of asthma. METHODS Mice were exposed to house dust mite (HDM) extracts to construct an asthma model. 5-Aza-2'-deoxycytidine (5-AZA) or dexamethasone (DEX) were added in the last two weeks. Besides, the primary human bronchial epithelial (HBE) cells were incubated for the detection of ITGB4 expression and methylation status after HDM stress. Furthermore, DNA methylation of ITGB4 in peripheral blood was measured in asthma patients. Logistic regression was employed to evaluate the association between methylation sites and asthma patients' ages in the control of potential confounders. Moreover, the correlations between differentially methylated sites (DMSs) and clinical parameters in asthma patients were assessed. Finally, the ability of candidate DMSs to predict asthma was evaluated by receiver operating characteristic (ROC) analysis and principal component analysis (PCA). RESULTS We found that in HDM-stressed asthma model, DNA methylation regulated the reduced ITGB4 expression in airway epithelial cells. Moreover, alteration in the specific CpG sites (chr17:73717720 and chr17:73717636) of ITGB4 may regulate ITGB4 expression and further may be associated with the clinically phenotypic of asthma. The specific DMSs of ITGB4 in peripheral blood can distinguish asthma patients from healthy controls (HCs) effectively. CONCLUSIONS AND CLINICAL RELEVANCE This study confirmed that DNA methylation regulates the decreased expression of ITGB4 in the airway epithelial cells of asthma patients. These results supply some useful insights to the mechanism of the decreased ITGB4 in asthmatic airway epithelial and provide possible targets for early prediction and screening of asthma.
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Affiliation(s)
- Mengping Wu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Yu Yang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Lin Yuan
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Ming Yang
- Faculty of Health and Medicine, Centre for Asthma and Respiratory Disease, School of Biomedical Sciences and Pharmacy, University of Newcastle and Hunter Medical Research Institute, Callaghan, NSW, Australia
| | - Leyuan Wang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Xizi Du
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Ling Qin
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, China
| | - Shuangyan Wu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Yang Xiang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Xiangping Qu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Huijun Liu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Xiaoqun Qin
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Chi Liu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China.,Research Center of China-Africa Infectious Diseases, Xiangya School of Medicine Central South University, Changsha, China
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13
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Tang S, Du X, Yuan L, Xiao G, Wu M, Wang L, Wu S, Duan Z, Xiang Y, Qu X, Liu H, Zou Y, Qin X, Qin L, Liu C. Airway epithelial ITGB4 deficiency in early life mediates pulmonary spontaneous inflammation and enhanced allergic immune response. J Cell Mol Med 2020; 24:2761-2771. [PMID: 31970850 PMCID: PMC7077534 DOI: 10.1111/jcmm.15000] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 12/13/2019] [Accepted: 12/27/2019] [Indexed: 12/22/2022] Open
Abstract
Lung immune responses to respiratory pathogens and allergens are initiated in early life which will further influence the later onset of asthma. The airway epithelia form the first mechanical physical barrier to allergic stimuli and environmental pollutants, which is also the key regulator in the initiation and development of lung immune response. However, the epithelial regulation mechanisms of early-life lung immune responses are far from clear. Our previous study found that integrin β4 (ITGB4) is decreased in the airway epithelium of asthma patients with specific variant site. ITGB4 deficiency in adult mice aggravated the lung Th2 immune responses and enhanced airway hyper-responsiveness (AHR) with a house dust mite (HDM)-induced asthma model. However, the contribution of ITGB4 to the postnatal lung immune response is still obscure. Here, we further demonstrated that ITGB4 deficiency following birth mediates spontaneous lung inflammation with ILC2 activation and increased infiltration of eosinophils and lymphocytes. Moreover, ITGB4 deficiency regulated thymic stromal lymphopoietin (TSLP) production in airway epithelial cells through EGFR pathways. Neutralization of TSLP inhibited the spontaneous inflammation significantly in ITGB4-deficient mice. Furthermore, we also found that ITGB4 deficiency led to exaggerated lung allergic inflammation response to HDM stress. In all, these findings indicate that ITGB4 deficiency in early life causes spontaneous lung inflammation and induces exaggerated lung inflammation response to HDM aeroallergen.
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Affiliation(s)
- Sha Tang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China.,Reproductive and Genetic Hospital of Citic-Xiangya, Changsha, China
| | - Xizi Du
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Lin Yuan
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Gelei Xiao
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Mengping Wu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Leyuan Wang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - ShuangYan Wu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Zhen Duan
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Yang Xiang
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Xiangping Qu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Huijun Liu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Yizhou Zou
- Department of Immunology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Xiaoqun Qin
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China
| | - Ling Qin
- Department of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Xiangya Hospital, Central South University, Changsha, China
| | - Chi Liu
- Department of Physiology, School of Basic Medicine Science, Central South University, Changsha, China.,Research Center of China-Africa Infectious Diseases, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
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