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Sandhu Y, Harada N, Harada S, Nishimaki T, Sasano H, Tanabe Y, Takeshige T, Matsuno K, Ishimori A, Katsura Y, Ito J, Akiba H, Takahashi K. MAP3K19 Affects TWEAK-Induced Response in Cultured Bronchial Epithelial Cells and Regulates Allergic Airway Inflammation in an Asthma Murine Model. Curr Issues Mol Biol 2023; 45:8907-8924. [PMID: 37998736 PMCID: PMC10670632 DOI: 10.3390/cimb45110559] [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: 05/19/2023] [Revised: 10/27/2023] [Accepted: 11/06/2023] [Indexed: 11/25/2023] Open
Abstract
The mitogen-activated protein kinase (MAPK) signaling pathway is involved in the epithelial-mesenchymal transition (EMT) and asthma; however, the role of mitogen-activated protein kinase kinase kinase 19 (MAP3K19) remains uncertain. Therefore, we investigated the involvement of MAP3K19 in in vitro EMT and ovalbumin (OVA)-induced asthma murine models. The involvement of MAP3K19 in the EMT and the production of cytokines and chemokines were analyzed using a cultured bronchial epithelial cell line, BEAS-2B, in which MAP3K19 was knocked down using small interfering RNA. We also evaluated the involvement of MAP3K19 in the OVA-induced asthma murine model using Map3k19-deficient (MAP3K19-/-) mice. Transforming growth factor beta 1 (TGF-β1) and tumor necrosis factor-like weak inducer of apoptosis (TWEAK) induced the MAP3K19 messenger RNA (mRNA) expression in the BEAS-2B cells. The knockdown of MAP3K19 enhanced the reduction in E-cadherin mRNA and the production of regulated upon activation normal T cell express sequence (RANTES) via stimulation with TWEAK alone or with the combination of TGF-β1 and TWEAK. Furthermore, the expression of MAP3K19 mRNA was upregulated in both the lungs and tracheas of the mice in the OVA-induced asthma murine model. The MAP3K19-/- mice exhibited worsened eosinophilic inflammation and an increased production of RANTES in the airway epithelium compared with the wild-type mice. These findings indicate that MAP3K19 suppressed the TWEAK-stimulated airway epithelial response, including adhesion factor attenuation and RANTES production, and suppressed allergic airway inflammation in an asthma mouse model, suggesting that MAP3K19 regulates allergic airway inflammation in patients with asthma.
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Affiliation(s)
- Yuuki Sandhu
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.S.); (S.H.); (T.N.); (H.S.); (Y.T.); (T.T.); (K.M.); (A.I.); (Y.K.); (J.I.); (K.T.)
| | - Norihiro Harada
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.S.); (S.H.); (T.N.); (H.S.); (Y.T.); (T.T.); (K.M.); (A.I.); (Y.K.); (J.I.); (K.T.)
- Research Institute for Diseases of Old Ages, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan
- Atopy (Allergy) Research Center, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Sonoko Harada
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.S.); (S.H.); (T.N.); (H.S.); (Y.T.); (T.T.); (K.M.); (A.I.); (Y.K.); (J.I.); (K.T.)
- Atopy (Allergy) Research Center, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Takayasu Nishimaki
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.S.); (S.H.); (T.N.); (H.S.); (Y.T.); (T.T.); (K.M.); (A.I.); (Y.K.); (J.I.); (K.T.)
| | - Hitoshi Sasano
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.S.); (S.H.); (T.N.); (H.S.); (Y.T.); (T.T.); (K.M.); (A.I.); (Y.K.); (J.I.); (K.T.)
| | - Yuki Tanabe
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.S.); (S.H.); (T.N.); (H.S.); (Y.T.); (T.T.); (K.M.); (A.I.); (Y.K.); (J.I.); (K.T.)
| | - Tomohito Takeshige
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.S.); (S.H.); (T.N.); (H.S.); (Y.T.); (T.T.); (K.M.); (A.I.); (Y.K.); (J.I.); (K.T.)
| | - Kei Matsuno
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.S.); (S.H.); (T.N.); (H.S.); (Y.T.); (T.T.); (K.M.); (A.I.); (Y.K.); (J.I.); (K.T.)
| | - Ayako Ishimori
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.S.); (S.H.); (T.N.); (H.S.); (Y.T.); (T.T.); (K.M.); (A.I.); (Y.K.); (J.I.); (K.T.)
| | - Yoko Katsura
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.S.); (S.H.); (T.N.); (H.S.); (Y.T.); (T.T.); (K.M.); (A.I.); (Y.K.); (J.I.); (K.T.)
| | - Jun Ito
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.S.); (S.H.); (T.N.); (H.S.); (Y.T.); (T.T.); (K.M.); (A.I.); (Y.K.); (J.I.); (K.T.)
| | - Hisaya Akiba
- Department of Immunology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan;
| | - Kazuhisa Takahashi
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan; (Y.S.); (S.H.); (T.N.); (H.S.); (Y.T.); (T.T.); (K.M.); (A.I.); (Y.K.); (J.I.); (K.T.)
- Research Institute for Diseases of Old Ages, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo 113-8421, Japan
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Yu P, Mao F, Chen J, Ma X, Dai Y, Liu G, Dai F, Liu J. Characteristics and mechanisms of resorption in lumbar disc herniation. Arthritis Res Ther 2022; 24:205. [PMID: 35999644 PMCID: PMC9396855 DOI: 10.1186/s13075-022-02894-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 07/26/2022] [Indexed: 12/12/2022] Open
Abstract
Lumbar disc herniation (LDH) can be spontaneously absorbed without surgical treatment. However, the pathogenesis and physiological indications for predicting protrusion reabsorption are still unclear, which prevents clinicians from preferentially choosing conservative treatment options for LDH patients with reabsorption effects. The purpose of this review was to summarize previous reports on LDH reabsorption and to discuss the clinical and imaging features that favor natural absorption. We highlighted the biological mechanisms involved in the phenomenon of LDH reabsorption, including macrophage infiltration, inflammatory responses, matrix remodeling, and neovascularization. In addition, we summarized and discussed potential clinical treatments for promoting reabsorption. Current evidence suggests that macrophage regulation of inflammatory mediators, matrix metalloproteinases, and specific cytokines in intervertebral disc is essential for the spontaneous reabsorption of LDH.
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Affiliation(s)
- Pengfei Yu
- Department of Orthopaedic Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, People's Republic of China
| | - Feng Mao
- Department of Orthopaedic Surgery, Kunshan Integrated TCM and Western Medicine Hospital, Suzhou, 215332, People's Republic of China
| | - Jingyun Chen
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Xiaoying Ma
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Yuxiang Dai
- Department of Orthopaedic Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, People's Republic of China
| | - Guanhong Liu
- Department of Orthopaedic Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, People's Republic of China
| | - Feng Dai
- Department of Orthopaedic Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, People's Republic of China
| | - Jingtao Liu
- Department of Orthopaedic Surgery, Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, 215009, People's Republic of China.
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Circulating sTweak is associated with visceral adiposity and severity in patients with obstructive sleep apnea syndrome. Sci Rep 2021; 11:22058. [PMID: 34764367 PMCID: PMC8586253 DOI: 10.1038/s41598-021-01553-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 10/26/2021] [Indexed: 11/21/2022] Open
Abstract
Hypoxia is linked to an inflammatory imbalance in obstructive sleep apnea syndrome (OSAS). Circulating soluble tumor necrosis factor (TNF)-like weak inducer of apoptosis (sTWEAK) is a cytokine that regulates inflammation and insulin resistance in adipose tissue. This study first investigated sTWEAK concentrations in patients OSAS and evaluated associations between sTWEAK concentrations and visceral adiposity, metabolic dysfunction, and hypoxia observed in OSAS. Forty age, sex, and body mass index-matched patients with simple habitual snoring (HSS) and 70 patients with OSAS were included. Patients were divided according to OSAS severity: mild-moderate (apnea–hypopnea index, AHI 5–30 events/h) and severe (AHI ≥ 30 events/h). Anthropometric data, glucose metabolism, visceral fat (VF) ratio, and sTWEAK levels were compared. sTWEAK levels were higher in the OSAS group than in the HSS group (931.23 ± 136.48 vs. 735.22 ± 102.84 ng/L, p = 0.001). sTWEAK levels were higher in severe OSAS than in mild-moderate OSAS (1031.83 ± 146.69 vs. 891.01 ± 110.01 ng/L, p = 0.002. When we evaluated the sTWEAK value and AHI, VF ratio, total cholesterol, blood pressure, homeostasis model of assessment-insulin resistance, and high-sensitivity C-reactive protein using multiple regression analysis, a significant correlation was found between sTWEAK levels and AHI (p < 0.001). It was found that sTWEAK levels were not correlated with glucose metabolism and VF ratio. Increased circulating sTWEAK levels were associated with the severity of OSAS. High sTWEAK levels were correlated with increased AHI. sTWEAK concentrations are linked to severe OSAS.
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Catherine J, Roufosse F. What does elevated TARC/CCL17 expression tell us about eosinophilic disorders? Semin Immunopathol 2021; 43:439-458. [PMID: 34009399 PMCID: PMC8132044 DOI: 10.1007/s00281-021-00857-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 04/14/2021] [Indexed: 12/19/2022]
Abstract
Eosinophilic disorders encompass a large spectrum of heterogeneous diseases sharing the presence of elevated numbers of eosinophils in blood and/or tissues. Among these disorders, the role of eosinophils can vary widely, ranging from a modest participation in the disease process to the predominant perpetrator of tissue damage. In many cases, eosinophilic expansion is polyclonal, driven by enhanced production of interleukin-5, mainly by type 2 helper cells (Th2 cells) with a possible contribution of type 2 innate lymphoid cells (ILC2s). Among the key steps implicated in the establishment of type 2 immune responses, leukocyte recruitment toward inflamed tissues is particularly relevant. Herein, the contribution of the chemo-attractant molecule thymus and activation-regulated chemokine (TARC/CCL17) to type 2 immunity will be reviewed. The clinical relevance of this chemokine and its target, C-C chemokine receptor 4 (CCR4), will be illustrated in the setting of various eosinophilic disorders. Special emphasis will be put on the potential diagnostic, prognostic, and therapeutic implications related to activation of the TARC/CCL17-CCR4 axis.
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Affiliation(s)
- Julien Catherine
- Department of Internal Medicine, Hôpital Erasme, 808 Route de Lennik, 1070, Brussels, Belgium. .,Institute for Medical Immunology, Université Libre de Bruxelles, 6041 Gosselies, Brussels, Belgium.
| | - Florence Roufosse
- Department of Internal Medicine, Hôpital Erasme, 808 Route de Lennik, 1070, Brussels, Belgium.,Institute for Medical Immunology, Université Libre de Bruxelles, 6041 Gosselies, Brussels, Belgium
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Anderson ED, Alishahedani ME, Myles IA. Epithelial-Mesenchymal Transition in Atopy: A Mini-Review. FRONTIERS IN ALLERGY 2020; 1. [PMID: 34308414 PMCID: PMC8301597 DOI: 10.3389/falgy.2020.628381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Atopic diseases, particularly atopic dermatitis (AD), asthma, and allergic rhinitis (AR) share a common pathogenesis of inflammation and barrier dysfunction. Epithelial to mesenchymal transition (EMT) is a process where epithelial cells take on a migratory mesenchymal phenotype and is essential for normal tissue repair and signal through multiple inflammatory pathways. However, while links between EMT and both asthma and AR have been demonstrated, as we outline in this mini-review, the literature investigating AD and EMT is far less well-elucidated. Furthermore, current studies on EMT and atopy are mostly animal models or ex vivo studies on cell cultures or tissue biopsies. The literature covered in this mini-review on EMT-related barrier dysfunction as a contributor to AD as well as the related (perhaps resultant) atopic diseases indicates a potential for therapeutic targeting and carry treatment implications for topical steroid use and environmental exposure assessments. Further research, particularly in vivo studies, may greatly advance the field and translate into benefit for patients and families.
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Affiliation(s)
- Erik D Anderson
- Epithelial Therapeutics Unit, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, United States
| | - Mohammadali E Alishahedani
- Epithelial Therapeutics Unit, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, United States
| | - Ian A Myles
- Epithelial Therapeutics Unit, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, United States
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Monocyte chemotactic protein-inducing protein 1 negatively regulating asthmatic airway inflammation and mucus hypersecretion involving γ-aminobutyric acid type A receptor signaling pathway in vivo and in vitro. Chin Med J (Engl) 2020; 134:88-97. [PMID: 33009026 PMCID: PMC7862809 DOI: 10.1097/cm9.0000000000001154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Mounting evidence, consistent with our previous study, showed that γ-aminobutyric acid type A receptor (GABAAR) played an indispensable role in airway inflammation and mucus hypersecretion in asthma. Monocyte chemotactic protein-inducing protein 1 (MCPIP1) was a key negative regulator of inflammation. Recent studies showed that inflammation was largely suppressed by enhanced MCPIP1 expression in many inflammatory diseases. However, the role and potential mechanism of MCPIP1 in airway inflammation and mucus hypersecretion in asthma were still not well studied. This study was to explore the role of MCPIP1 in asthmatic airway inflammation and mucus hypersecretion in both mice and BEAS-2B cells, and its potential mechanism. METHODS In vivo, mice were sensitized and challenged by ovalbumin (OVA) to induce asthma. Airway inflammation and mucus secretion were analyzed. In vitro, BEAS-2B cells were chosen. Interleukin (IL)-13 was used to stimulate inflammation and mucus hypersecretion in cells. MCPIP1 Lentiviral vector (LA-MCPIP1) and plasmid-MCPIP1 were used to up-regulate MCPIP1 in lung and cells, respectively. MCP-1, thymic stromal lymphopoietin (TSLP), mucin 5AC (MUC5AC), MCPIP1, and GABAARβ2 expressions were measured in both lung and BEAS-2B cells. Immunofluorescence staining was performed to observe the expression of GABAARβ2 in cells. RESULTS MCPIP1 was up-regulated by LA-MCPIP1 (P < 0.001) and plasmid-MCPIP1 (P < 0.001) in lung and cells, respectively. OVA-induced airway inflammation and mucus hypersecretion, OVA-enhanced MCP-1, TSLP, MUC5AC, and GABAARβ2 expressions, and OVA-reduced MCPIP1 were significantly blunted by LA-MCPIP1 in mice (all P < 0.001). IL-13-enhanced MCP-1, TSLP, MUC5AC, and GABAARβ2 expressions, and IL-13-reduced MCPIP1 were markedly abrogated by plasmid-MCPIP1 in BEAS-2B cells (all P < 0.001). CONCLUSION The results of this study suggested that OVA and IL-13-induced airway inflammation and mucus hypersecretion were negatively regulated by MCPIP1 in both lung and BEAS-2B cells, involving GABAAR signaling pathway.
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Han X, Na T, Wu T, Yuan BZ. Human lung epithelial BEAS-2B cells exhibit characteristics of mesenchymal stem cells. PLoS One 2020; 15:e0227174. [PMID: 31900469 PMCID: PMC6941928 DOI: 10.1371/journal.pone.0227174] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 12/06/2019] [Indexed: 12/15/2022] Open
Abstract
BEAS-2B was originally established as an immortalized but non-tumorigenic epithelial cell line from human bronchial epithelium. Because of general recognition for its bronchial epithelial origin, the BEAS-2B cell line has been widely used as an in vitro cell model in a large variety of studies associated with respiratory diseases including lung carcinogenesis. However, very few studies have discussed non-epithelial features of BEAS-2B cells, especially the features associated with mesenchymal stem cells (MSCs), which represent a group of fibroblast-like cells with limited self-renewal and differentiation potential to various cell lineages. In this study, we compared BEAS-2B with a human umbilical cord-derived MSCs (hMSCs) cell line, hMSC1, which served as a representative of hMSCs in terms of expressing common features of hMSCs. It was observed that both BEAS-2B and hMSC1 shared the same expression profile of surface markers of hMSCs and exhibited similar osteogenic and adipogenic differentiation potential. In addition, like hMSC1, the BEAS-2B cell line exhibited suppressive activities on proliferation of mitogen-activated total T lymphocytes as well as Th1 lymphocytes, and IFNγ-induced expression of IDO1, all thus demonstrating that BEAS-2B cells exhibited an almost identical characteristic profile with hMSCs, even though, there was a clear difference between BEAS-2B and hMSCs in the effects on type 2 macrophage polarization. Most importantly, the hMSCs features of BEAS-2B were unlikely a consequence of epithelial-mesenchymal transition. Therefore, this study provided a set of evidence to provoke reconsideration of epithelial origin of BEAS-2B.
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Affiliation(s)
- Xiaoyan Han
- Cell Collection and Research Center, National Institutes for Food and Drug Control, Beijing, China
| | - Tao Na
- Cell Collection and Research Center, National Institutes for Food and Drug Control, Beijing, China
| | - Tingting Wu
- Cell Collection and Research Center, National Institutes for Food and Drug Control, Beijing, China
| | - Bao-Zhu Yuan
- Cell Collection and Research Center, National Institutes for Food and Drug Control, Beijing, China
- * E-mail:
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Guan R, Lin R, Jin R, Lu L, Liu X, Hu S, Sun L. Chitinase-like protein YKL-40 regulates human bronchial epithelial cells proliferation, apoptosis, and migration through TGF-β1/Smads pathway. Hum Exp Toxicol 2019; 39:451-463. [PMID: 31797699 DOI: 10.1177/0960327119891218] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In order to study the effects of chitinase-like protein YKL-40 on proliferation, apoptosis, and migration of human bronchial epithelial cell line (BEAS-2B), and the underlying mechanisms, we cultured BEAS-2B alone or with different concentrations of YKL-40. thiazolyl blue tetrazolium bromide (MTT) assay was used to examine the cell proliferation. Annexin V-fluorescein isothiocyanate isomer (FITC)/propidium iodide staining and scratch assay were performed to test the cell apoptosis and migration. The concentrations of transforming growth factor-β1 (TGF-β1), Smad3, Smad7, alpha-smooth muscle actin (α-SMA), interleukin-4 (IL-4), IL-6, and IL-8 in the cell culture supernatant were detected by enzyme-linked immunosorbent assay. The messenger RNA and protein levels of YKL-40, TGF-β1, Smad3, Smad7, and α-SMA were detected by reverse transcription polymerase chain reaction and Western blot. BEAS-2B cells cultured with different concentrations of YKL-40 showed significantly higher cell proliferation and migration and inflammatory cytokines compared with that of control group, while the cell apoptosis was significantly lower than that of control group (p < 0.05). In addition, BEAS-2B cells cultured with YKL-40 had increased TGF-β1, Smad3, Smad7, and α-SMA levels in the supernatant, compared with that of BEAS-2B cells cultured alone (p < 0.05). Furthermore, LY364947, as TGF-β1/Smads signaling pathway inhibitor, decreased cell proliferation and migration ability and enhanced cell apoptosis of BEAS-2B cells compared with control group (p < 0.05). However, YKL-40 administration reversed the effect of LY364947 on the biological behavior of BEAS-2B cells. YKL-40 could affect the biological behaviors of BEAS-2B cells, which might be related to the TGF-β1/Smads pathway.
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Affiliation(s)
- R Guan
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China.,Both the authors contributed equally to this work
| | - R Lin
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China.,Both the authors contributed equally to this work
| | - R Jin
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - L Lu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - X Liu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - S Hu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - L Sun
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao, China
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Cai LM, Zhou YQ, Yang LF, Qu JX, Dai ZY, Li HT, Pan L, Ye HQ, Chen ZG. Thymic stromal lymphopoietin induced early stage of epithelial-mesenchymal transition in human bronchial epithelial cells through upregulation of transforming growth factor beta 1. Exp Lung Res 2019; 45:221-235. [PMID: 31378088 DOI: 10.1080/01902148.2019.1646841] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Purpose: Epithelial-mesenchymal transition (EMT) involved in asthmatic airway remodeling. Thymic stromal lymphopoietin (TSLP), an epithelial-derived cytokine, was a key component in airway immunological response in asthma. But the role of TSLP in the EMT process was unknown. We aimed to access whether TSLP could induce EMT in airway epithelia and its potential mechanism. Materials and Methods: Human bronchial epithelial (HBE) cells were incubated with TSLP or transforming growth factor beta 1 (TGF-β1) or both. SB431542 was used to block TGF-β1 signal while TSLP siRNA was used to performed TSLP knockdown. Changes in E-cadherin, vimentin, collagen I and fibronectin level were measured by real-time PCR, western blot and immunofluorescence staining. Expressions of TGF-β after TSLP administration were measured by real-time PCR, western blot and ELISA. Results: TSLP induced changes of EMT relevant markers alone and promoted TGF-β1-induced EMT in HBEs. Intracellular and extracellular expression of TGF-β1 were upregulated by TSLP. SB431542 blocked changes of EMT relevant markers induced by TSLP. Knockdown of TSLP not only reduced TSLP and TGF-β1 expression but also inhibited changes of EMT relevant markers induced by TGF-β1 in HBEs. Conclusions: TSLP could induce early stage of EMT in airway epithelial cells through upregulation of TGF-β1. This effect may act as a targeting point for suppression of asthma.
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Affiliation(s)
- Liang-Ming Cai
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Yu-Qi Zhou
- Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-Sen University , Guangzhou , China
| | - Li-Fen Yang
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Jing-Xin Qu
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Zhen-Yuan Dai
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Hong-Tao Li
- Department of Pulmonary Diseases, The Third Affiliated Hospital of Sun Yat-Sen University , Guangzhou , China
| | - Li Pan
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Hui-Qing Ye
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
| | - Zhuang-Gui Chen
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University , Guangzhou , China
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