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Liu X, Cui H, Bai Q, Piao H, Song Y, Yan G. miR-128-3p alleviates airway inflammation in asthma by targeting SIX1 to regulate mitochondrial fission and fusion. Int Immunopharmacol 2024; 130:111703. [PMID: 38422767 DOI: 10.1016/j.intimp.2024.111703] [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: 09/25/2023] [Revised: 02/07/2024] [Accepted: 02/13/2024] [Indexed: 03/02/2024]
Abstract
Bronchial asthma is known for airway inflammation, hyperresponsiveness, and remodeling.MicroRNAs (MiRNAs) have been involved in the development of asthma, whereas, the mechanism of various MiRNAs in asthma remains to be elucidated. In this study, we aim to explore the mechanism of miR-128-3p in asthma-related airway inflammation by targeting sine oculis homeobox homolog 1 (SIX1) to regulate the mitochondrial function. In an ovalbumin (OVA) asthma mouse model, miR-128-3p levels were found to be significantly diminished. Administration of miR-128-3p agomir decreased peribronchial inflammatory cell infiltration and improved airway inflammation. Afterwards, we used the luciferase reporter assay to predict and confirmed that SIX1 is a target gene of miR-128-3p. Overexpression of miR-128-3p attenuated IL-13-induced cellular inflammation and ROS production in bronchial epithelial cells (BEAS-2B). In vitro, overexpression of miR-128-3p and SIX1 knockdown mitigated mitochondrial fragmentation, reduced Drp1-mediated mitochondrial division, and upregulated mitochondrial membrane potential. Moreover, led to decreased production of ROS/mitochondrial ROS, P-Drp1(616) and Fis1 expression, while enhancing P-Drp1(637), MFN1, caspase-3/9, and Bax-mediated apoptosis. Our findings demonstrated that miR-128-3p could alleviate airway inflammation by downregulating SIX1 and improving mitochondrial function, positioning the miR-128-3p/SIX1/Drp1 signaling as a potential therapeutic target for asthma.
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Affiliation(s)
- Xiaohan Liu
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji 133002, PR China; Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji 133002, PR China
| | - Hong Cui
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji 133002, PR China; Center of Medical Functional Experiment, Yanbian University Medical College, Yanji 133002, PR China
| | - Qiaoyun Bai
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji 133002, PR China; Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji 133002, PR China
| | - Hongmei Piao
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji 133002, PR China; Department of Respiratory Medicine, Affiliated Hospital of Yanbian University, Yanji 133000, PR China
| | - Yilan Song
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji 133002, PR China; Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji 133002, PR China.
| | - Guanghai Yan
- Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Yanbian University, Yanji 133002, PR China; Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji 133002, PR China.
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Zhu S, Li W, Zhang H, Yan Y, Mei Q, Wu K. Retinal determination gene networks: from biological functions to therapeutic strategies. Biomark Res 2023; 11:18. [PMID: 36750914 PMCID: PMC9906957 DOI: 10.1186/s40364-023-00459-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 01/28/2023] [Indexed: 02/09/2023] Open
Abstract
The retinal determinant gene network (RDGN), originally discovered as a critical determinator in Drosophila eye specification, has become an important regulatory network in tumorigenesis and progression, as well as organogenesis. This network is not only associated with malignant biological behaviors of tumors, such as proliferation, and invasion, but also regulates the development of multiple mammalian organs. Three members of this conservative network have been extensively investigated, including DACH, SIX, and EYA. Dysregulated RDGN signaling is associated with the initiation and progression of tumors. In recent years, it has been found that the members of this network can be used as prognostic markers for cancer patients. Moreover, they are considered to be potential therapeutic targets for cancer. Here, we summarize the research progress of RDGN members from biological functions to signaling transduction, especially emphasizing their effects on tumors. Additionally, we discuss the roles of RDGN members in the development of organs and tissue as well as their correlations with the pathogenesis of chronic kidney disease and coronary heart disease. By summarizing the roles of RDGN members in human diseases, we hope to promote future investigations into RDGN and provide potential therapeutic strategies for patients.
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Affiliation(s)
- Shuangli Zhu
- grid.412793.a0000 0004 1799 5032Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Wanling Li
- grid.412793.a0000 0004 1799 5032Department of Geriatrics, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China ,grid.470966.aCancer Center, Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032 China
| | - Hao Zhang
- grid.412793.a0000 0004 1799 5032Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Yuheng Yan
- grid.412793.a0000 0004 1799 5032Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Qi Mei
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China. .,Cancer Center, Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China.
| | - Kongming Wu
- Cancer Center, Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China. .,Cancer Center, Tongji hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Liang S, Zhao Y, Chen G, Wang C. Isoorientin ameliorates OVA-induced asthma in a murine model of asthma. Exp Biol Med (Maywood) 2022; 247:1479-1488. [PMID: 35658632 PMCID: PMC9493767 DOI: 10.1177/15353702221094505] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Allergic asthma which is induced by ovalbumin (OVA) is a chronic airway inflammation disease. Isoorientin (Iso) is a natural C-glucosyl flavone with many biological properties. We aimed to evaluate the effectiveness of Iso on OVA-induced allergic asthma. A total of 30 C57BL/6 mice were randomly divided into five groups: control group, OVA group, Dex (dexamethasone, 10 mg/kg) group, low-dose Iso group (Iso-L, 25 mg/kg), and high-dose Iso group (Iso-H, 50 mg/kg). The serum and bronchoalveolar lavage fluid (BALF) were collected for biochemical parameters, the lung tissue was collected for hematoxylin-eosin (H&E) staining, immunohistochemistry (IHC), and western blot. The levels of IL-4, IL-5, IL-13, malondialdehyde (MDA), NO, and reactive oxygen species (ROS) in Iso-L and Iso-H groups were significantly lower than that in model group (p < 0.05). Simultaneously, the levels of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activity were higher than that in model group (p < 0.05). Iso significantly ameliorated airway hyperresponsiveness. Meanwhile, H&E staining revealed that mice treated with Iso resulted in the ameliorated inflammatory cell infiltration and a reduction in interstitial thickening. The nuclear factor erythroid 2-like 2 (Nrf2) and HO-1 protein expression in Iso-L and Iso-H groups were enhanced over that in model group, while p-NF-κB-p65 and p-IκB-α protein expression was decreased (p < 0.05). Our research indicated that Iso alleviated the OVA-induced allergic asthma, and this effect can be explained by the modulation of Nrf2/HO-1 and NF-κB signaling pathway; thus, the results providing a therapeutic rationale for the treatment of Iso on allergic asthma.
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Wilson C, Mertens TC, Shivshankar P, Bi W, Collum SD, Wareing N, Ko J, Weng T, Naikawadi RP, Wolters PJ, Maire P, Jyothula SS, Thandavarayan RA, Ren D, Elrod ND, Wagner EJ, Huang HJ, Dickey BF, Ford HL, Karmouty-Quintana H. Sine oculis homeobox homolog 1 plays a critical role in pulmonary fibrosis. JCI Insight 2022; 7:e142984. [PMID: 35420997 PMCID: PMC9220956 DOI: 10.1172/jci.insight.142984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 04/12/2022] [Indexed: 11/30/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a fatal disease with limited treatment options. The role of the developmental transcription factor Sine oculis homeobox homolog 1 (SIX1) in the pathophysiology of lung fibrosis is not known. IPF lung tissue samples and IPF-derived alveolar type II cells (AT2) showed a significant increase in SIX1 mRNA and protein levels, and the SIX1 transcriptional coactivators EYA1 and EYA2 were elevated. Six1 was also upregulated in bleomycin-treated (BLM-treated) mice and in a model of spontaneous lung fibrosis driven by deletion of Telomeric Repeat Binding Factor 1 (Trf1) in AT2 cells. Conditional deletion of Six1 in AT2 cells prevented or halted BLM-induced lung fibrosis, as measured by a significant reduction in histological burden of fibrosis, reduced fibrotic mediator expression, and improved lung function. These effects were associated with increased macrophage migration inhibitory factor (MIF) in lung epithelial cells in vivo following SIX1 overexpression in BLM-induced fibrosis. A MIF promoter-driven luciferase assay demonstrated direct binding of Six1 to the 5'-TCAGG-3' consensus sequence of the MIF promoter, identifying a likely mechanism of SIX1-driven MIF expression in the pathogenesis of lung fibrosis and providing a potentially novel pathway for targeting in IPF therapy.
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Affiliation(s)
- Cory Wilson
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), Houston, Texas, USA
| | - Tinne C.J. Mertens
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), Houston, Texas, USA
| | - Pooja Shivshankar
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), Houston, Texas, USA
| | - Weizen Bi
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), Houston, Texas, USA
| | - Scott D. Collum
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), Houston, Texas, USA
| | - Nancy Wareing
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), Houston, Texas, USA
| | - Junsuk Ko
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), Houston, Texas, USA
| | - Tingting Weng
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), Houston, Texas, USA
| | - Ram P. Naikawadi
- Pulmonary, Critical Care, Allergy and Sleep Medicine, UCSF, San Francisco, California, USA
| | - Paul J. Wolters
- Pulmonary, Critical Care, Allergy and Sleep Medicine, UCSF, San Francisco, California, USA
| | - Pascal Maire
- Université de Paris Cité, Institut Cochin, INSERM, CNRS, Paris, France
| | - Soma S.K. Jyothula
- Divisions of Critical Care, Pulmonary and Sleep Medicine, Department of Internal Medicine, McGovern Medical School, UTHealth, Houston, Texas, USA
| | | | - Dewei Ren
- Methodist J.C. Walter Jr. Transplant Center, Houston Methodist Hospital, Houston, Texas, USA
| | - Nathan D. Elrod
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Eric J. Wagner
- Department of Biochemistry and Biophysics, Center for RNA Biology, Wilmot Cancer Institute, University of Rochester School of Medicine and Dentistry, KMRB G.9629, Rochester, New York, USA
| | - Howard J. Huang
- Methodist J.C. Walter Jr. Transplant Center, Houston Methodist Hospital, Houston, Texas, USA
| | - Burton F. Dickey
- Department of Pulmonary Medicine, Division of Internal Medicine, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
| | - Heide L. Ford
- Department of Pharmacology, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA
| | - Harry Karmouty-Quintana
- Department of Biochemistry and Molecular Biology, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), Houston, Texas, USA
- Divisions of Critical Care, Pulmonary and Sleep Medicine, Department of Internal Medicine, McGovern Medical School, UTHealth, Houston, Texas, USA
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5
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Liu W, Gao M, Li L, Chen Y, Fan H, Cai Q, Shi Y, Pan C, Liu J, Cheng LS, Yang H, Cheng G. Homeoprotein SIX1 compromises antitumor immunity through TGF-β-mediated regulation of collagens. Cell Mol Immunol 2021; 18:2660-2672. [PMID: 34782761 PMCID: PMC8633173 DOI: 10.1038/s41423-021-00800-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/17/2021] [Accepted: 10/18/2021] [Indexed: 12/13/2022] Open
Abstract
The tumor microenvironment (TME), including infiltrated immune cells, is known to play an important role in tumor growth; however, the mechanisms underlying tumor immunogenicity have not been fully elucidated. Here, we discovered an unexpected role for the transcription factor SIX1 in regulating the tumor immune microenvironment. Based on analyses of patient datasets, we found that SIX1 was upregulated in human tumor tissues and that its expression levels were negatively correlated with immune cell infiltration in the TME and the overall survival rates of cancer patients. Deletion of Six1 in cancer cells significantly reduced tumor growth in an immune-dependent manner with enhanced antitumor immunity in the TME. Mechanistically, SIX1 was required for the expression of multiple collagen genes via the TGFBR2-dependent Smad2/3 activation pathway, and collagen deposition in the TME hampered immune cell infiltration and activation. Thus, our study uncovers a crucial role for SIX1 in modulating tumor immunogenicity and provides proof-of-concept evidence for targeting SIX1 in cancer immunotherapy.
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Affiliation(s)
- Wancheng Liu
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 China
| | - Meiling Gao
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 China
| | - Lili Li
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 China
| | - Yu Chen
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 China
| | - Huimin Fan
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 China
| | - Qiaomei Cai
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 China
| | - Yueyue Shi
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 China
| | - Chaohu Pan
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 China
| | - Junxiao Liu
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 China
| | - Lucy S. Cheng
- grid.412689.00000 0001 0650 7433Department of Dermatology, University of Pittsburgh Medical Center, 3708 Fifth Avenue, Suite 500.68, Pittsburgh, PA 15213 USA
| | - Heng Yang
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, China. .,Suzhou Institute of Systems Medicine, Suzhou, 215123, China.
| | - Genhong Cheng
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA.
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Chang J, Zhang Y, Ye X, Guo H, Lu K, Liu Q, Guo Y. Long non-coding RNA (LncRNA) CASC9/microRNA(miR)-590-3p/sine oculis homeobox 1 (SIX1)/NF-κB axis promotes proliferation and migration in breast cancer. Bioengineered 2021; 12:8709-8723. [PMID: 34711117 PMCID: PMC8806761 DOI: 10.1080/21655979.2021.1977555] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Long non-coding RNA (lncRNA)–microRNA–mRNA signaling axes have recently been shown to have a key role in the development of breast cancer (BC). In this study, we investigated how the cancer susceptibility candidate 9 (CASC9) gene affects the cell growth, invasion, migration, and apoptosis of BC cells. The levels of microRNA-590-3p (miR-590-3p), CASC9, and the sine oculis homeobox 1 (SIX1) gene were determined through qRT-PCR. We conducted cell counting kit-8 (CCK-8) assays to assess cell proliferation, transwell assays to detect cell migration/invasion, and flow cytometry to evaluate cell apoptosis. StarBase v2.0 was used to predict interactions between miR-590-3p and SIX1 or CASC9, and dual-luciferase reporter assays were used to verify these predictions. CASC9 protein was overexpressed in BC cells and tissues, while CASC9 knockdown inhibited BC cell growth, invasion, and migration and promoted apoptosis. Additionally, we verified that CASC9 competes for binding with miR-590-3p. Moreover, SIX1 was determined to be a target of miR-590–3p, and SIX1 expression was inhibited by miR-590-3p overexpression. CASC9 enhanced BC development by downregulating miR-590-3p and upregulating SIX1 during the activation of the NF-κB pathway. These data suggest that the CASC9/miR-590-3p/SIX1/NF-κB axis is involved in breast cancer progression, providing insight into the function of CASC9 in breast cancer development.
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Affiliation(s)
- Jingzhi Chang
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
| | - Yuxia Zhang
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
| | - Xin Ye
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
| | - Hui Guo
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
| | - Kun Lu
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
| | - Qing Liu
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
| | - Yli Guo
- Department of Biochemistry and Molecular Biology, Shangqiu Medical College, Shangqiu, China
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Li Q, Zhai C, Wang G, Zhou J, Li W, Xie L, Shi Z. Ginsenoside Rh1 attenuates ovalbumin-induced asthma by regulating Th1/Th2 cytokines balance. Biosci Biotechnol Biochem 2021; 85:1809-1817. [PMID: 34057179 DOI: 10.1093/bbb/zbab099] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 02/08/2021] [Indexed: 12/24/2022]
Abstract
Ginsenoside Rh1 (Rh1) has anti-inflammatory effects in asthma mice, but the underlying mechanism remains unclear. BALB/c mice were sensitized and challenged with ovalbumin (OVA) to construct asthma model. Mice received Rh1 or tiotropium bromide 0.5 h before OVA challenge. Airway morphology and airway remodeling were assessed by HE staining and Masson's trichrome staining, respectively. Th1/Th2 cytokines in serum or broncho alveolar lavage fluid (BALF) were measured by ELISA kits. Rh1 significantly alleviated the lung resistance and airway resistance, and reduced the number of total inflammation cells, eosinophils, neutrophils, and lymphocytes in BALF of the asthmatic mice. The morphological changes and collagen deposition of airway were also reduced by Rh1 in asthmatic mice. The increase of Eotaxin, IL-4, IL-5, IL-13, and IL-33 and the decrease of IL-12 and IFN-γ in both BALF and serum of OVA exposed mice were reversed by Rh1. Rh1 attenuates OVA-induced asthma in the mice model by regulating Th1/Th2 cytokines balance.
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Affiliation(s)
- Qiang Li
- Department of Geriatrics, Hangzhou Hospital of Traditional Chinese Medicine, Xihu District, Hangzhou City, Zhejiang Province, China
| | - Chunmiao Zhai
- Department of Rehabilitation Medicine, Hangzhou Dingqiao Hospital, Jianggan District, Hangzhou City, Zhejiang Province, China
| | - Guodong Wang
- Department of Geriatrics, Hangzhou Hospital of Traditional Chinese Medicine, Xihu District, Hangzhou City, Zhejiang Province, China
| | - Jia Zhou
- Department of Geriatrics, Hangzhou Hospital of Traditional Chinese Medicine, Xihu District, Hangzhou City, Zhejiang Province, China
| | - Weiguang Li
- Department of Geriatrics, Hangzhou Hospital of Traditional Chinese Medicine, Xihu District, Hangzhou City, Zhejiang Province, China
| | - Liquan Xie
- Department of Geriatrics, Hangzhou Hospital of Traditional Chinese Medicine, Xihu District, Hangzhou City, Zhejiang Province, China
| | - Zhanli Shi
- Department of Geriatrics, Hangzhou Red Cross Hospital, Xiacheng District, Hangzhou City, Zhejiang Province, China
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8
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Wang W, Yang Z, Li M, Wang Z, Shan Y, Qu Z. Six1 Promotes Epithelial-Mesenchymal Transition in Bronchial Epithelial Cells via the TGFβ1/Smad Signalling Pathway. Int Arch Allergy Immunol 2021; 182:479-488. [PMID: 33631753 DOI: 10.1159/000512873] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/09/2020] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION The homeodomain transcription factor sine oculis homeobox homolog 1 (Six1) plays a crucial role in embryogenesis and is not expressed in normal adult tissue but is expressed in many pathological processes, including airway remodelling in asthma. The current study aimed to reveal the effects of Six1 in regulating the airway remodelling and its possible mechanism. METHODS A mouse model of ovalbumin-induced asthma-associated airway wall remodelling and a bronchial epithelial cell (16HBE) model of transforming growth factor β1 (TGFβ1)-induced epithelial-mesenchymal transition (EMT) were used to investigate the role of Six1. Then, 16HBE cells were transformed with Six1 expression vectors and treated with a TGFβ1 pathway inhibitor to determine the role of Six1 in EMT. The effect of Six1 and its possible mechanism were assessed by immunohistochemistry, RT-PCR, and Western blot. RESULTS Six1 expression was elevated in the lungs in an OVA mouse model of allergic asthma and in 16HBE cells treated with TGFβ1. Six1 overexpression promoted an EMT-like phenotype with a decreased protein expression of E-cadherin and increased protein expression of α-smooth muscle actin (α-SMA) as well as fibronectin in 16HBE cells; these effects appeared to promote TGFβ1 and phospho-Smad2 (pSmad2) production, which are the main products of the TGFβ1/Smad signalling pathway, which could be reduced by a TGFβ1 inhibitor. CONCLUSION These data reveal that Six1 and TGFβ1 are potentially a part of an autocrine feedback loop that induces EMT, and these factors can be reduced by blocking the TGFβ1/Smad signalling pathway. As such, these factors may represent a promising novel therapeutic target for airway remodelling in asthma.
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Affiliation(s)
- Wenxin Wang
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China.,Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhaochuan Yang
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Meixiang Li
- Department of Pediatrics, Municipal Hospital of Heze, Heze, China
| | - Zhenhong Wang
- Education and Training Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yanchun Shan
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhenghai Qu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China,
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9
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Liu S, Chen X, Zhang S, Wang X, Du X, Chen J, Zhou G. miR‑106b‑5p targeting SIX1 inhibits TGF‑β1‑induced pulmonary fibrosis and epithelial‑mesenchymal transition in asthma through regulation of E2F1. Int J Mol Med 2021; 47:24. [PMID: 33495833 PMCID: PMC7846424 DOI: 10.3892/ijmm.2021.4857] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 12/21/2020] [Indexed: 02/06/2023] Open
Abstract
Asthma is an inflammatory disease of the airways, characterized by lung eosinophilia, mucus hypersecretion by goblet cells and airway hyper-responsiveness to inhaled allergens. The present study aimed to identify the function of microRNA (miR/miRNA)-106b-5p in TGF-β1-induced pulmonary fibrosis and epithelial-mesenchymal transition (EMT) via targeting sine oculis homeobox homolog 1 (SIX1) through regulation of E2F transcription factor 1 (E2F1) in asthma. Asthmatic mouse models were induced with ovalbumin. miRNA expression was evaluated using reverse transcription-quantitative PCR. Transfection experiments using bronchial epithelial cells were performed to determine the target genes. A luciferase reporter assay system was applied to identify the target gene of miR-106b-5p. The present study revealed downregulated miR-106b-5p expression and upregulated SIX1 expression in asthmatic mice and TGF-β1-induced BEAS-2B cells. Moreover, miR-106b-5p overexpression inhibited TGF-β1-induced fibrosis and EMT in BEAS-2B cells, while miR-106b-5p-knockdown produced the opposite effects. Subsequently, miR-106b-5p was found to regulate SIX1 through indirect regulation of E2F1. Additionally, E2F1- and SIX1-knockdown blocked TGF-β1-induced fibrosis and EMT in BEAS-2B cells. In addition, miR-106b-5p negatively regulated SIX1 via E2F1 in BEAS-2B cells. The present study demonstrated that the miR-106b-5p/E2F1/SIX1 signaling pathway may provide potential therapeutic targets for asthma.
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Affiliation(s)
- Shuang Liu
- Department of Pediatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xi Chen
- Department of Pediatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Siqing Zhang
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xinyu Wang
- Department of Pediatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xiaoliu Du
- Department of Pathology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Jiahe Chen
- Department of Pediatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Guoping Zhou
- Department of Pediatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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10
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Rajagopal K, Bryant AJ, Sahay S, Wareing N, Zhou Y, Pandit LM, Karmouty-Quintana H. Idiopathic pulmonary fibrosis and pulmonary hypertension: Heracles meets the Hydra. Br J Pharmacol 2021; 178:172-186. [PMID: 32128790 PMCID: PMC7910027 DOI: 10.1111/bph.15036] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 12/04/2019] [Accepted: 02/11/2020] [Indexed: 12/14/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a fatal lung disease where the additional presence of pulmonary hypertension (PH) reduces survival. In particular, the presence of coexistent pulmonary vascular disease in patients with advanced lung parenchymal disease results in worse outcomes than either diagnosis alone. This is true with respect to the natural histories of these diseases, outcomes with medical therapies, and even outcomes following lung transplantation. Consequently, there is a striking need for improved treatments for PH in the setting of IPF. In this review, we summarize existing therapies from the perspective of molecular mechanisms underlying lung fibrosis and vasoconstriction/vascular remodelling and discuss potential future targets for pharmacotherapy. LINKED ARTICLES: This article is part of a themed issue on Risk factors, comorbidities, and comedications in cardioprotection. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.1/issuetoc.
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Affiliation(s)
- Keshava Rajagopal
- Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, Texas
| | - Andrew J. Bryant
- Division of Pulmonology, Department of Medicine, University of Florida, Gainesville, Florida
| | - Sandeep Sahay
- Houston Methodist Lung Center, Division of Pulmonary Medicine, Department of Internal Medicine, Houston Methodist Hospital, Houston, Texas
| | - Nancy Wareing
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Yang Zhou
- Division of Biology and Medicine, Brown University, Providence, Rhode Island
| | - Lavannya M. Pandit
- Department of Medicine, Pulmonary, Critical Care and Sleep Medicine, Baylor College of Medicine–Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas
| | - Harry Karmouty-Quintana
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center at Houston, Houston, Texas
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11
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Li X, Zhou L, Zhang Z, Liu Y, Liu J, Zhang C. IL-27 alleviates airway remodeling in a mouse model of asthma via PI3K/Akt pathway. Exp Lung Res 2020; 46:98-108. [PMID: 32164467 DOI: 10.1080/01902148.2020.1740356] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Purpose: Airway remodeling is one of the features of severe asthma. Previous study shows that IL-27 inhibits airway inflammation in asthmatic mice. However, the role of IL-27 on airway remodeling in OVA-induced asthmatic mice and its possible mechanism remain unclear. Methods: We established an ovalbumin (OVA)-induced asthmatic mice model. IL-27 were preventative administered to OVA-induced asthmatic mice. The total cells in Bronchoalveolar lavage fluid (BALF) and Airway hyperresponsiveness (AHR) were measured. The lung tissues were performed by Hematoxylin and eosin (HE) staining to estimate the pathological changes. Masson staining was used to observe the collagen deposition area. The expression of α-smooth muscle actin (α-SMA) and Type I collagen was measured by immunohistochemistry, western blot, and quantitative reverse transcription polymerase chain reaction (qRT-PCR). Additionally, western blot was also used to measure the expression of phosphorylated-Akt (p-Akt) in each group. Results: IL-27 group showed significant inhibitory effect on the α-SMA and Type I collagen. The expression of p-Akt in the tissues of asthma model was increased and inhibited by IL-27. Conclusions: IL-27 can alleviate airway remodeling in OVA-induced asthmatic mice, and the mechanism may relate to PI3K/Akt pathway.
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Affiliation(s)
- Xin Li
- Department of Clinical Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Ling Zhou
- Department of Respiratory Medicine, Shandong Provincial Qianfoshan Hospital affiliated to Shandong University, Jinan, Shandong, China
| | - Zewen Zhang
- Department of MR, Shandong Medical Imaging Research Institute, Shandong University, Jinan, Shandong, China
| | - Yuanyuan Liu
- Department of Respiratory Medicine, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China
| | - Ju Liu
- Medical Research Center, Shandong Provincial Qianfoshan Hospital affiliated to Shandong University, Jinan, Shandong, China
| | - Caiqing Zhang
- Department of Respiratory Medicine, Shandong Provincial Qianfoshan Hospital affiliated to Shandong University, Jinan, Shandong, China
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12
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Yang Z, Qu Z, Yi M, Lv Z, Wang Y, Shan Y, Ran N, Liu X. MiR-204-5p Inhibits Transforming Growth Factor-β1-Induced Proliferation and Extracellular Matrix Production of Airway Smooth Muscle Cells by Regulating Six1 in Asthma. Int Arch Allergy Immunol 2020; 181:239-248. [PMID: 31955160 DOI: 10.1159/000505064] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 11/27/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Transforming growth factor-β1 (TGF-β1)-in-duced proliferation of airway smooth muscle cells plays critical roles in the development of airway remodeling. Six1 (sine oculis homeobox homolog 1) has been demonstrated to be involved in airway inflammation and remodeling in asthmatic mice. OBJECTIVES The aim of this work was to investigate the potential role of miR-204-5p in the proliferation and extracellular matrix (ECM) production of airway smooth muscle cells in asthma. METHODS Real-time PCR was used to measure the expression of miR-204-5p in asthmatic airway smooth muscle cells. Cell viability and apoptosis were detected to evaluate the effect of miR-204-5p on airway smooth muscle cells. Dual-luciferase reporter experiments were applied to identify the target genes of miR-204-5p. RESULTS MiR-204-5p was downregulated notably in asthmatic airway smooth muscle cells as well as cells stimulated with TGF-β1. Overexpression of miR-204-5p markedly suppressed the TGF-β1-induced proliferation of airway smooth muscle cells and the deposition of ECM, whereas the inhibition of miR-204-5p significantly enhanced the proliferation of airway smooth muscle cells and upregulated the level of fibronectin and collagen III. Furthermore, subsequent analyses demonstrated that Six1 was a direct target of miR-204-5p, and Western blot further indicated that miR-204-5p negatively regulated the expression of Six1. Most importantly, the restoration of Six1 expression reversed the inhibitory effect of miR-204-5p on TGF-β1-induced proliferation and ECM production. CONCLUSIONS MiR-204-5p inhibits TGF-β1-in-duced proliferation and ECM production of airway smooth muscle cells by regulating Six1, identifying a potential therapeutic target for preventing airway remodeling in asthma.
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Affiliation(s)
- Zhaochuan Yang
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China.,Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhenghai Qu
- Center of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Mingji Yi
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zhidong Lv
- Breast Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yanxia Wang
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yanchun Shan
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ni Ran
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xinjie Liu
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China,
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13
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Takahashi Y, Kobayashi T, D'Alessandro-Gabazza CN, Toda M, Fujiwara K, Okano T, Fujimoto H, Asayama K, Takeshita A, Yasuma T, Nishihama K, Inoue R, Qin L, Takei Y, Taguchi O, Gabazza EC. Protective Role of Matrix Metalloproteinase-2 in Allergic Bronchial Asthma. Front Immunol 2019; 10:1795. [PMID: 31428095 PMCID: PMC6687911 DOI: 10.3389/fimmu.2019.01795] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 07/16/2019] [Indexed: 12/18/2022] Open
Abstract
Inflammation, reversible obstruction, and hyperresponsiveness of the airways are characteristic findings of bronchial asthma. Several evidence has demonstrated the involvement of matrix metalloproteinase-2 in allergic airway inflammation. Matrix metalloproteinase-2 may promote aberrant tissue remodeling in late stages of allergic airway inflammation. However, whether matrix metalloproteinase-2 is detrimental or protective in early stages of allergic airway inflammation remains unclear. To evaluate this here we compared the severity of allergic bronchial asthma between mice overexpressing human matrix metalloproteinase-2 and wild type mice. After sensitization and challenge with an allergen, mice overexpressing the human matrix metalloproteinase-2 showed a significant reduction in airway hyperresponsiveness and in the expression of Th2 cytokines and IgE compared to their wild type counterparts. An inhibitor of matrix metalloproteinases abolished this beneficial effect of human matrix metalloproteinase-2 overexpression. Allergen-sensitized and challenged human matrix metalloproteinase-2 transgenic mice had enhanced percentage of M1 macrophages with increased expression of inducible nitric oxide synthase and STAT1 activation in the lungs compared to their wild type counterparts. There was no difference in the percentage of regulatory T cells between mouse groups. The results of this study showed that matrix metalloproteinase-2 is protective in allergic bronchial asthma by promoting polarization of macrophages to M1 phenotype.
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Affiliation(s)
- Yoshinori Takahashi
- Department of Pulmonary and Critical Care Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - Tetsu Kobayashi
- Department of Pulmonary and Critical Care Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | | | - Masaaki Toda
- Department of Immunology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kentaro Fujiwara
- Department of Pulmonary and Critical Care Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - Tomohito Okano
- Department of Pulmonary and Critical Care Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hajime Fujimoto
- Department of Pulmonary and Critical Care Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kentaro Asayama
- Department of Pulmonary and Critical Care Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - Atsuro Takeshita
- Department of Immunology, Mie University Graduate School of Medicine, Tsu, Japan.,Department of Diabetes, Metabolism and Endocrinology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Taro Yasuma
- Department of Immunology, Mie University Graduate School of Medicine, Tsu, Japan.,Department of Diabetes, Metabolism and Endocrinology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kota Nishihama
- Department of Diabetes, Metabolism and Endocrinology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Ryo Inoue
- Central Institute for Experimental Animals, Kawasaki-ku, Japan
| | - Liqiang Qin
- Department of Nephrology, Taizhou Hospital, Wenzhou Medical University, Lihai, China
| | - Yoshiyuki Takei
- Department of Diabetes, Metabolism and Endocrinology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Osamu Taguchi
- Center for Physical and Mental Health, Mie University Graduate School of Medicine, Tsu, Japan
| | - Esteban C Gabazza
- Department of Immunology, Mie University Graduate School of Medicine, Tsu, Japan
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14
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Cui J, Xu F, Tang Z, Wang W, Hu LL, Yan C, Luo Q, Gao H, Wei Y, Dong J. Bu-Shen-Yi-Qi formula ameliorates airway remodeling in murine chronic asthma by modulating airway inflammation and oxidative stress in the lung. Biomed Pharmacother 2019; 112:108694. [PMID: 30798140 DOI: 10.1016/j.biopha.2019.108694] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 02/13/2019] [Accepted: 02/14/2019] [Indexed: 12/16/2022] Open
Abstract
Bu-Shen-Yi-Qi formula (BSYQF) could suppress chronic airway inflammation according to previous studies. However, there is relatively little direct experimental evidence to evaluate the effects of BSYQF treatment on airway remodeling in chronic asthma. Recent evidence suggests that oxidative stress is involved in airway inflammation and airway remodeling in chronic asthma. BSYQF which includes various of chemical components having antioxidant effects, could be beneficial in attenuating airway remodeling in chronic asthma. The purpose of this study was to elucidate the effect of BSYQF treatment on airway remodeling and investigate its potential mechanisms in chronic asthma. To develop the murine models of chronic asthma, BALB/c mice were sensitized and challenged to ovalbumin for 8 weeks. BSYQF (5, 10, 20 g raw herbs/kg body weight) or tiotropium bromide (0.1 mM) were administered orally and intranasal instillation, respectively. The effect of BSYQF on pulmonary inflammation and remodeling was evaluated. The parameters of oxidative stress in the lung were analyzed. BSYQF treatment reduced airway hyperresponsiveness (AHR), Th2 response including IL-4, IL-13, and OVA-specific IgE and IgG1, transforming growth factor-β (TGF-β), vascular endothelium growth factor (VEGF), airway inflammation and airway remodeling including smooth muscle thickening and peribronchial collagen deposition. As for oxidative stress, BSYQF treatment reduced reactive oxygen species (ROS), Malondialdehyde (MDA), NO, and the expression of inducible nitric oxide synthase (iNOS), but increased significantly glutathione (GSH) /Oxidized glutathione(GSSH) ratios in the lung, restored mitochondrial ultrastructural changes of bronchial epithelia and ATP levels in the lung. In summary, this study suggested that BSYQF treatment ameliorated airway remodeling and alleviated asthmatic features in chronic asthma models. Anti-inflammatory and antioxidant effect of BSYQF may explain why BSYQF has effects on preventing airway remodeling.
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Affiliation(s)
- Jie Cui
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Fei Xu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Zhao Tang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Wenqian Wang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Ling Li Hu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Chen Yan
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Qingli Luo
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Hongjian Gao
- Electron Microscope Room, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Ying Wei
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China; Institutes of Integrative Medicine, Fudan University, Shanghai, China.
| | - Jingcheng Dong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China.
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15
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Yang ZC, Qu ZH, Yi MJ, Shan YC, Ran N, Xu L, Liu XJ. MiR-448-5p inhibits TGF-β1-induced epithelial-mesenchymal transition and pulmonary fibrosis by targeting Six1 in asthma. J Cell Physiol 2018; 234:8804-8814. [PMID: 30362537 DOI: 10.1002/jcp.27540] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 09/13/2018] [Indexed: 12/28/2022]
Abstract
MicroRNAs (miRNAs) are small yet versatile gene tuners that regulate a variety of cellular processes, including cell growth and proliferation. The aim of this study was to explore how miR-448-5p affects airway remodeling and transforming growth factor-β1 (TGF-β1)-stimulated epithelial-mesenchymal transition (EMT) by targeting Sine oculis homeobox homolog 1 (Six1) in asthma. Asthmatic mice models with airway remodeling were induced with ovalbumin solution. MiRNA expression was evaluated using quantitative real-time polymerase chain reaction. Transfection studies of bronchial epithelial cells were performed to determine the target genes. A luciferase reporter assay system was applied to identify whether Six1 is a target gene of miR-448-5p. In the current study, we found that miR-448-5p was dramatically decreased in lung tissues of asthmatic mice and TGF-β1-stimulated bronchial epithelial cells. In addition, the decreased level of miR-448-5p was closely associated with the increased expression of Six1. Overexpression of miR-448-5p decreased Six1 expression and, in turn, suppressed TGF-β1-mediated EMT and fibrosis. Next, we predicted that Six1 was a potential target gene of miR-448-5p and demonstrated that miR-448-5p could directly target Six1. An SiRNA targeting Six1 was sufficient to suppress TGF-β1-induced EMT and fibrosis in 16HBE cells. Furthermore, the overexpression of Six1 partially reversed the protective effect of miR-448-5p on TGF-β1-mediated EMT and fibrosis in bronchial epithelial cells. Taken together, the miR-448-5p/TGF-β1/Six1 link may play roles in the progression of EMT and pulmonary fibrosis in asthma.
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Affiliation(s)
- Zhao-Chuan Yang
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China.,Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Zheng-Hai Qu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ming-Ji Yi
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yan-Chun Shan
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ni Ran
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lei Xu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xin-Jie Liu
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, China
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16
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Huang C, Zhang Z, Wang L, Liu J, Gong X, Zhang C. ML-7 attenuates airway inflammation and remodeling via inhibiting the secretion of Th2 cytokines in mice model of asthma. Mol Med Rep 2018; 17:6293-6300. [PMID: 29512725 PMCID: PMC5928606 DOI: 10.3892/mmr.2018.8683] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 12/01/2017] [Indexed: 01/05/2023] Open
Abstract
Previous studies have indicated that smooth muscle myosin light chain kinase (MLCK) has a prominent role in the regulation of smooth muscle contraction, which tends to be upregulated in asthma. In recent years, numerous studies have reported that MLCK is intimately connected with the immunoregulatory mechanism of T cells. The imbalance of T helper type 1 cells (Th1)/Th2 constitutes the immune-associated pathological basis of chronic asthma. Th2-associated cytokines, including interleukin-4, −5, −13, −25 and −33, are involved in airway inflammation, hyperresponsiveness and remodeling, which leads to a progressive decline in lung function. The purpose of the present study was to verify whether inhibition of bronchial MLCK attenuated the expression Th2-associated cytokines in asthmatic mice, including the above-mentioned ones. Female BALB/c mice were used to establish an ovalbumin (OVA)-induced model of asthma, of which one group was treated with the MLCK inhibitor (5-iodonaphthalene-1-sulfonyl) homopiperazine (ML-7). The inhibitor of MLCK, ML-7 attenuated airway inflammation and remodeling by reducing inflammatory cell infiltration and the secretion of Th2 cytokines in mice model of asthma, which may represent a promising therapeutic strategy for asthma.
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Affiliation(s)
- Chuanjun Huang
- Department of Respiratory Diseases, Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250013, P.R. China
| | - Zewen Zhang
- Department of Medical Imaging and Nuclear Medicine, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Liuxin Wang
- Department of Respiratory Medicine, The First People's Hospital of Jining, Jining, Shandong 272011, P.R. China
| | - Ju Liu
- Department of Medical Research Center, Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014, P.R. China
| | - Xiaodan Gong
- Department of Respiratory Diseases, Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014, P.R. China
| | - Caiqing Zhang
- Department of Respiratory Diseases, Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014, P.R. China
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