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Song G, Yu S, Zhang Y, Sun M, Zhang B, Peng M. 2-Undecanone alleviates asthma by inhibiting NF-κB pathway. Biochem Cell Biol 2023; 101:101-111. [PMID: 36480816 DOI: 10.1139/bcb-2022-0185] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Asthma is characterized by airway inflammation and remodeling. 2-Undecanone (methyl nonyl ketone), a volatile organic compound originating from Houttuynia cordata, has the potential to ameliorate inflammatory diseases. This study aimed to explore potential benefits of 2-undecanone in asthma. 2-Undecanone (100, 200, or 400 mg/kg) was administered intragastrically to ovalbumin (OVA)-challenged BALB/c mice. Lung tissues were collected to observe histopathological changes, and bronchoalveolar lavage fluid (BALF) was collected for the detection of inflammatory cells and cytokine production. The results showed that 2-undecanone ameliorated OVA-induced pathologic changes of lungs, including reducing inflammatory cell infiltration, goblet cell hyperplasia, and airway smooth muscle thickness. The number of inflammatory cells and the levels of IL-4, IL-5, IL-13, and IgE in BALF were decreased by 2-undecanone in asthmatic mice. Furthermore, abnormal activation of NF-κB pathway in lung tissues of asthmatic mice was impeded by 2-undecanone. In vitro, 2-undecanone (12.5, 25, or 50 µM) suppressed platelet-derived growth factor-BB-induced proliferation and migration of primary airway smooth muscle cells (ASMCs), and inhibited the switching of ASMCs from contractile phenotype to synthetic phenotype. Consistently, 2-undecanone blocked NF-κB activation in ASMCs. Collectively, 2-undecanone relieves asthma through alleviating airway inflammation and remodeling, and this beneficial effect is achieved by inhibiting NF-κB pathway.
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Affiliation(s)
- Guihua Song
- Department of Pediatrics, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Suping Yu
- Department of Pediatrics, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Yan Zhang
- Department of Pediatrics, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Mengmeng Sun
- Department of Pediatrics, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Bingxue Zhang
- Department of Pediatrics, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
| | - Minghao Peng
- Department of Pediatrics, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan, China
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Liu P, Li S, Tang L. Nerve Growth Factor: A Potential Therapeutic Target for Lung Diseases. Int J Mol Sci 2021; 22:ijms22179112. [PMID: 34502019 PMCID: PMC8430922 DOI: 10.3390/ijms22179112] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/18/2021] [Accepted: 08/20/2021] [Indexed: 12/19/2022] Open
Abstract
The lungs play a very important role in the human respiratory system. However, many factors can destroy the structure of the lung, causing several lung diseases and, often, serious damage to people's health. Nerve growth factor (NGF) is a polypeptide which is widely expressed in lung tissues. Under different microenvironments, NGF participates in the occurrence and development of lung diseases by changing protein expression levels and mediating cell function. In this review, we summarize the functions of NGF as well as some potential underlying mechanisms in pulmonary fibrosis (PF), coronavirus disease 2019 (COVID-19), pulmonary hypertension (PH), asthma, chronic obstructive pulmonary disease (COPD), and lung cancer. Furthermore, we highlight that anti-NGF may be used in future therapeutic strategies.
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Affiliation(s)
- Piaoyang Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China;
| | - Shun Li
- Department of Immunology, School of Basic Medical Sciences, Chengdu Medical College, Chengdu 610500, China
- Non-Coding RNA and Drug Discovery Key Laboratory of Sichuan Province, Chengdu Medical College, Chengdu 610500, China
- Correspondence: (S.L.); (L.T.)
| | - Liling Tang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China;
- Correspondence: (S.L.); (L.T.)
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NOX4-Derived ROS Promotes Collagen I Deposition in Bronchial Smooth Muscle Cells by Activating Noncanonical p38MAPK/Akt-Mediated TGF- β Signaling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6668971. [PMID: 33824697 PMCID: PMC8007363 DOI: 10.1155/2021/6668971] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 02/10/2021] [Accepted: 02/18/2021] [Indexed: 01/17/2023]
Abstract
Background Airway smooth muscle (ASM) remodeling is a hallmark in chronic obstructive pulmonary disease (COPD). NADPH oxidase 4- (NOX4-) mediated reactive oxygen species (ROS) production plays a crucial role in cell differentiation and extracellular matrix (ECM) synthesis in ASM remodeling. However, the precise mechanisms underpinning its pathogenic roles remain elusive. Methods The expression of NOX4 and TGF-β1 in the airway of the lung was measured in COPD patients and the control group. Cigarette smoke- (CS-) induced emphysema mice were generated, and the alteration of α-SMA, NOX4, TGF-β1, and collagen I was accessed. The changes of the expression of ECM markers, NOX4, components of TGF-β/Smad, and MAPK/Akt signaling in human bronchial smooth muscle cells (HBSMCs) were ascertained for delineating mechanisms of NOX4-mediated ROS production on cell differentiation and remodeling in human ASM cells. Results An increased abundance of NOX4 and TGF-β1 proteins in the epithelial cells and ASM of lung was observed in COPD patients compared with the control group. Additionally, an increased abundance expression of NOX4 and α-SMA was observed in the lungs of the CS-induced emphysema mouse model. TGF-β1 displayed abilities to increase the oxidative burden and collagen I production, along with enhanced phosphorylation of ERK, p38MAPK, and p-Akt473 in HBSMCs. These effects of TGF-β1 could be inhibited by the ROS scavenger N-acetylcysteine (NAC), siRNA-mediated knockdown of Smad3 and NOX4, and pharmacological inhibitors SB203580 (p38MAPK inhibitor) and LY294002 (Akt inhibitor). Conclusions NOX4-mediated ROS production alters TGF-β1-induced cell differentiation and collagen I protein synthesis in HBSMCs in part through the p38MAPK/Akt signaling pathway in a Smad-dependent manner.
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Shi J, Chen M, Ouyang L, Wang Q, Guo Y, Huang L, Jiang S. miR-142-5p and miR-130a-3p regulate pulmonary macrophage polarization and asthma airway remodeling. Immunol Cell Biol 2020; 98:715-725. [PMID: 32524675 DOI: 10.1111/imcb.12369] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 05/04/2020] [Accepted: 06/09/2020] [Indexed: 01/12/2023]
Abstract
Macrophages are key regulators of the development and progression of asthma, facilitating deleterious airway remodeling in affected patients. Immune cell function is tightly regulated by microRNAs (miRNAs), but how these miRNAs impact macrophage-mediated airway remodeling in the context of asthma remains to be determined. In this study, we utilized an ovalbumin (OVA)-based murine model of asthma to evaluate the importance of miRNAs within these macrophages. We found that macrophages from mice that had been sensitized with and exposed to OVA expressed higher levels of M2-like phenotypic markers and exhibited significantly altered expression of both miR-142-5p and miR-130a-3p. When these isolated pulmonary macrophages were cultured in vitro, we determined that transfecting them with miR-142-5p antisense oligonucleotide (ASO) or miR-130a-3p mimics was sufficient to inhibit the ability of interleukin-4 to induce M2 cytokine production. We additionally confirmed the in vivo relevance of these miRNAs in a Ccr2-/- murine model system mimicking asthma. Specifically, we determined that transfecting monocytes with miR-142-5p ASO and/or miR-130a-3p mimics was sufficient to disrupt the ability of these cells to promote airway remodeling. As such, these findings reveal that miR-142-5p and miR-130a-3p dysregulation are important factors governing the polarization of macrophages and associated airway remodeling in OVA-sensitized mice.
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Affiliation(s)
- Jianting Shi
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ming Chen
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lihua Ouyang
- Department of Anesthesiology, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qiujie Wang
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yimin Guo
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Linjie Huang
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shanping Jiang
- Department of Respiratory Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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Wang L, Wang N, Zhang R, Dong D, Liu R, Zhang L, Ji W, Yu M, Zhang F, Niu R, Zhou Y. TGFβ regulates NK1R-Tr to affect the proliferation and apoptosis of breast cancer cells. Life Sci 2020; 256:117674. [PMID: 32380077 DOI: 10.1016/j.lfs.2020.117674] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/09/2020] [Accepted: 04/12/2020] [Indexed: 12/22/2022]
Abstract
OBJECTIVES TGFβ promotes cancer aggressiveness in advanced stages. NK1R-Tr expression in advanced breast cancer has a pro-carcinogenic effect. In this study, we aimed to investigate the effect of the association of TGFβ with NK1R-Tr expression on the proliferation and apoptosis of breast cancer cells. METHODS Immunohistochemical staining and Western blot analysis were used to detect TGFβ and NK1R-Tr in breast cancer and paracancerous tissue samples. MDA-MB-231 and BT549 cells were stimulated with TGFβ after NK1R knockdown or treated with the NK1R antagonist aprepitant, and the effects of TGFβ and NK1R-Tr on proliferation and apoptosis were detected by CCK-8, colony formation and flow cytometry assays. In vivo xenograft models were used to further verify the effects of NK1R-Tr and TGFβ. The regulatory effects of Smad4 on NK1R promoter activity were confirmed by ChIP and dual-luciferase reporter assays. RESULTS The expression levels of TGFβ and NK1R-Tr were higher in breast cancer tissues than in adjacent tissues and were positively correlated in human breast cancer tissues. NK1R knockdown or aprepitant treatment in MDA-MB-231 and BT549 cells attenuated the effects of TGFβ on cell proliferation. The proportion of cells in G2/M phase significantly increased, the expression of cyclin B1 decreased, and the expression of P21 increased; these effects were weakened by TGFβ treatment. Apoptosis in breast cancer cells was significantly increased. In vivo xenograft models were used to further verify that NK1R-Tr and TGFβ promoted tumour growth. After TGFβ treatment, the binding capacity of Smad4 to the NK1R promoter, as well as luciferase activity, was enhanced. CONCLUSIONS The expression levels of TGFβ and NK1R-Tr were higher in breast cancer tissues than in normal tissues, and both were correlated with a poor patient prognosis. TGFβ and NK1R-Tr promoted cell proliferation and inhibited apoptosis, and TGFβ regulated the expression of NK1R-Tr via Smad4.
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Affiliation(s)
- Lushan Wang
- Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy of Educational Ministry, Tianjin Medical University, Tianjin, China; Department of Clinical Laboratory, Tianjin Children's Hospital, Tianjin, China
| | - Ning Wang
- Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy of Educational Ministry, Tianjin Medical University, Tianjin, China
| | - Runshi Zhang
- Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy of Educational Ministry, Tianjin Medical University, Tianjin, China
| | - Dong Dong
- Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy of Educational Ministry, Tianjin Medical University, Tianjin, China
| | - Rui Liu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Lufang Zhang
- Department of Laboratory, Aviation General Hospital, Beijing, China
| | - Wei Ji
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy of Educational Ministry, Tianjin Medical University, Tianjin, China
| | - Man Yu
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Canada
| | - Fei Zhang
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy of Educational Ministry, Tianjin Medical University, Tianjin, China
| | - Ruifang Niu
- Public Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy of Educational Ministry, Tianjin Medical University, Tianjin, China
| | - Yunli Zhou
- Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Key Laboratory of Breast Cancer Prevention and Therapy of Educational Ministry, Tianjin Medical University, Tianjin, China.
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Xu Y, Wang YQ, Wang AT, Yu CY, Luo Y, Liu RM, Zhao YJ, Xiao JH. Effect of CD44 on differentiation of human amniotic mesenchymal stem cells into chondrocytes via Smad and ERK signaling pathways. Mol Med Rep 2020; 21:2357-2366. [PMID: 32236637 PMCID: PMC7185282 DOI: 10.3892/mmr.2020.11044] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 02/28/2020] [Indexed: 01/22/2023] Open
Abstract
CD44 antigen (CD44) is a transmembrane protein found in cell adhesion molecules and is involved in the regulation of various physiological processes in cells. It was hypothesized that CD44 directly affected the chondrogenic differentiation of human amniotic mesenchymal stem cells (hAMSCs). In the present study, the expression of chondrocyte-associated factors was detected in the absence and presence of the antibody blocker anti-CD44 antibody during the chondrogenic differentiation of hAMSCs. Following inhibition of CD44 expression, the transcriptional levels of chondrocyte-associated genes SRY-box transcription factor 9, aggrecan and collagen type II α 1 chain, as well as the production of chondrocyte markers type II collagen and aggrecan were significantly decreased in hAMSCs. Further investigation indicated that there was no significant change in total ERK1/2 expression following inhibition of CD44 expression; however, phosphorylated (p)-ERK1/2 expression was decreased. The expression of p-Smad2/3 was also upregulated following CD44 inhibition. These data indicated that CD44 may affect the differentiation of hAMSCs into chondrocytes by regulating the Smad2/3 and ERK1/2 signaling pathway.
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Affiliation(s)
- Yan Xu
- Zunyi Municipal Key Laboratory of Medicinal Biotechnology, Institute of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Yi-Qing Wang
- Zunyi Municipal Key Laboratory of Medicinal Biotechnology, Institute of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Ai-Tong Wang
- Zunyi Municipal Key Laboratory of Medicinal Biotechnology, Institute of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Chang-Yin Yu
- Center for Translational Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Yi Luo
- Zunyi Municipal Key Laboratory of Medicinal Biotechnology, Institute of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Ru-Ming Liu
- Zunyi Municipal Key Laboratory of Medicinal Biotechnology, Institute of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Yu-Jie Zhao
- Department of Laboratory Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
| | - Jian-Hui Xiao
- Zunyi Municipal Key Laboratory of Medicinal Biotechnology, Institute of Medicinal Biotechnology, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563003, P.R. China
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Weissler KA, Frischmeyer-Guerrerio PA. Genetic evidence for the role of transforming growth factor-β in atopic phenotypes. Curr Opin Immunol 2019; 60:54-62. [PMID: 31163387 DOI: 10.1016/j.coi.2019.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/01/2019] [Accepted: 05/02/2019] [Indexed: 12/15/2022]
Abstract
New evidence in humans and mice supports a role for transforming growth factor-β (TGF-β) in the initiation and effector phases of allergic disease, as well as in consequent tissue dysfunction. This pleiotropic cytokine can affect T cell activation and differentiation and B cell immunoglobulin class switching following initial encounter with an allergen. TGF-β can also act on mast cells during an acute allergic episode to modulate the strength of the response, in addition to driving tissue remodeling following damage caused by an allergic attack. Accordingly, genetic disorders leading to altered TGF-β signaling can result in increased rates of allergic disease.
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Affiliation(s)
- Katherine A Weissler
- Laboratory of Allergic Diseases, National Institutes of Allergy and Infectious Diseases, Bethesda, MD, USA
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She W, Mei Z, Zhao H, Li G, Lin Y. Nebulized Inhalation of Anti-Nerve Growth Factor Microspheres Inhibits Airway Remodeling in an Ovalbumin-Induced Rat Asthma Model. J Aerosol Med Pulm Drug Deliv 2019; 32:70-77. [PMID: 30681402 DOI: 10.1089/jamp.2018.1453] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Airway remodeling is considered an important factor in refractory and uncontrollable asthma. Previous studies have confirmed that anti-nerve growth factor (NGF) antibody can ameliorate airway remodeling. However, whether nebulized inhalation of anti-NGF microspheres (NANM) can inhibit airway remodeling is not clear. The purpose of this study was to investigate the effects of NANM on ovalbumin (OVA)-induced airway remodeling, and the mechanisms involved. METHODS Anti-NGF microspheres were produced using a polymer alloy method. OVA was used to establish a rat model of asthma airway remodeling. Rats were treated with inhalation atomized anti-NGF antibody or NANM. Airway inflammation, airway reactivity, and airway remodeling were measured. Lung tissue P-Smad3 and tumor growth factor (TGF)-β1 mRNA and protein expression were also measured. RESULTS The anti-NGF antibody microsphere encapsulation rate was high, and the release time was long. NANM markedly attenuated OVA-induced airway remodeling, such as collagen deposition, average pulmonary resistance, the WAm/Pbm, WAt/Pbm, and Wcol/Pbm ratios (WAt, bronchial wall area; Pbm, perimeter of basement membrane; WAm, smooth muscle wall area; Wcol, airway collagen fiber area). Compared with the anti-NGF antibody group and the OVA group, the expression of TGF-β1 mRNA, TGF-β1 protein, and P-Smad3 in the NANM group were markedly decreased. CONCLUSIONS NANM ameliorated OVA-induced airway remodeling, partly through regulation of the TGF-β1/Smad3 pathway.
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Affiliation(s)
- Weiwei She
- 1 Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Guilin Medical University, Guilin, China.,2 Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhengmin Mei
- 4 Guangxi Key Laboratory of Biology, Guangxi Academy of Specialty Crops, Guilin, China
| | - Haijin Zhao
- 2 Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Gang Li
- 5 Department of Psychology, The Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Yun Lin
- 3 Department of Respiratory Medicine, The Second Affiliated Hospital of Guilin Medical University, Guilin, China
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Zhu X, Li Q, Hu G, Wang J, Hu Q, Liu Z, Wu G, Zhong Y. BMS‑345541 inhibits airway inflammation and epithelial‑mesenchymal transition in airway remodeling of asthmatic mice. Int J Mol Med 2018; 42:1998-2008. [PMID: 30015827 PMCID: PMC6108878 DOI: 10.3892/ijmm.2018.3762] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 06/28/2018] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to investigate the possible effects and regulatory mechanism of the inhibitor of nuclear factor‑κB kinase complex β subunit (IKKβ) inhibitor BMS‑345541 on airway inflammation, airway remodeling and epithelial‑mesenchymal transition (EMT) in an ovalbumin (OVA) exposure asthma model in mice. The asthma mouse model was generated by sensitization and challenge with OVA. BMS‑345541/dimethyl sulfoxide (DMSO) was administered perorally dairy in two therapeutic groups throughout the entire OVA challenge process. At 24 h following the last challenge, airway hyperresponsiveness (AHR) and airway inflammation were examined, and serum, bronchoalveolar lavage fluid (BALF) and lung samples were collected. Lung tissue was stained and assessed for pathological changes. The total number and classification of inflammatory cells in the BALF were examined. Levels of transforming growth factor β1 (TGFβ1) in the serum and BALF were measured using an enzyme‑linked immunosorbent assay. The differential expression of EMT regulators E‑cadherin and vimentin was detected by immunohistochemical staining, reverse transcription‑quantitative polymerase chain reaction analysis and western blot analysis. The results showed that OVA successfully induced allergic asthma. The asthmatic mice had AHR, airway inflammation, airway remodeling, a high expression of TGFβ1, and evidence of EMT. Following BMS‑345541 treatment, there was significant inhibition of pathophysiological signs, including increased pulmonary eosinophilia infiltration, mucus hypersecretion and AHR. Treatment with BMS‑345541 significantly reduced levels of TGFβ1. In addition, BMS‑345541 notably downregulated the expression of vimentin and increased the expression of E‑cadherin. These data suggested that the increased secretion of TGFβ1 induced by asthmatic inflammation can lead to EMT, and the IKKβ inhibitor BMS‑345541 may alter airway remodeling by preventing EMT in an OVA asthma model. Therefore, IKKβ inhibitors require investigation as potential asthma therapies.
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Affiliation(s)
- Xiaohua Zhu
- Graduate School, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Qiugen Li
- Respiratory Department, Jiangxi People's Hospital, Nanchang, Jiangxi 330006, P.R. China
| | - Guozhu Hu
- Central Laboratory, Jiangxi People's Hospital, Nanchang, Jiangxi 330006, P.R. China
| | - Jun Wang
- Respiratory Department, Jiangxi People's Hospital, Nanchang, Jiangxi 330006, P.R. China
| | - Qinghua Hu
- Central Laboratory, Jiangxi Children's Hospital, Nanchang, Jiangxi 330006, P.R. China
| | - Zhiqiang Liu
- Clinical Laboratory, Jiangxi Children's Hospital, Nanchang, Jiangxi 330006, P.R. China
| | - Gang Wu
- Graduate School, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Ying Zhong
- Graduate School, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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