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Wang ZZ, Li H, Maskey AR, Srivastava K, Liu C, Yang N, Xie T, Fu Z, Li J, Liu X, Sampson HA, Li XM. The Efficacy & Molecular Mechanisms of a Terpenoid Compound Ganoderic Acid C1 on Corticosteroid-Resistant Neutrophilic Airway Inflammation: In vivo and in vitro Validation. J Inflamm Res 2024; 17:2547-2561. [PMID: 38686360 PMCID: PMC11057679 DOI: 10.2147/jir.s433430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 01/23/2024] [Indexed: 05/02/2024] Open
Abstract
Introduction Neutrophil predominant airway inflammation is associated with severe and steroid-resistant asthma clusters. Previously, we reported efficacy of ASHMI, a three-herb TCM asthma formula in a steroid-resistant neutrophil-dominant murine asthma model and further identified Ganoderic Acid C1 (GAC1) as a key ASHMI active compound in vitro. The objective of this study is to investigate GAC1 effect on neutrophil-dominant, steroid-resistant asthma in a murine model. Methods In this study, Balb/c mice were systematically sensitized with ragweed (RW) and alum and intranasally challenged with ragweed. Unsensitized/PBS challenged mice served as normal controls. Post sensitization, mice were given 4 weeks of oral treatment with GAC1 or acute dexamethasone (Dex) treatment at 48 hours prior to challenge. Pulmonary cytokines were measured by ELISA, and lung sections were processed for histology by H&E staining. Furthermore, GAC1 effect on MUC5AC expression and on reactive oxygen species (ROS) production in human lung epithelial cell line (NCI-H292) was determined by qRT-PCR and ROS assay kit, respectively. Computational analysis was applied to select potential targets of GAC1 in steroid-resistant neutrophil-dominant asthma. Molecular docking was performed to predict binding modes between GAC1 and Dex with TNF-α. Results The result of the study showed that chronic GAC1 treatment, significantly reduced pulmonary inflammation (P < 0.01-0.001 vs Sham) and airway neutrophilia (P < 0.01 vs Sham), inhibited TNF-α, IL-4 and IL-5 levels (P < 0.05-0.001 vs Sham). Acute Dex treatment reduced eosinophilic inflammation and IL-4, IL-5 levels, but had no effect on neutrophilia and TNF-α production. GAC1 treated H292 cells showed decreased MUC5AC gene expression and production of ROS (P < 0.001 vs stimulated/untreated cells). Molecular docking results showed binding energy of complex GAC1-TNF was -10.8 kcal/mol. Discussion GAC1 may be a promising anti-asthma botanical drug for treatment of steroid-resistant asthma.
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Affiliation(s)
- Zhen-Zhen Wang
- Academy of Chinese Medical Science, Henan University of Chinese Medicine, Zhengzhou, Henan, People’s Republic of China
- Department of Pathology, Microbiology & Immunology, New York Medical College, Valhalla, NY, USA
- Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Zhengzhou, Henan, People’s Republic of China
| | - Hang Li
- Central Lab, Shenzhen Bao’an Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, People’s Republic of China
| | - Anish R Maskey
- Department of Pathology, Microbiology & Immunology, New York Medical College, Valhalla, NY, USA
| | - Kamal Srivastava
- Department of Pathology, Microbiology & Immunology, New York Medical College, Valhalla, NY, USA
- General Nutraceutical Technology, Elmsford, NY, USA
| | - Changda Liu
- Department of Pediatrics, Division of Allergy and Immunology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Nan Yang
- Department of Pathology, Microbiology & Immunology, New York Medical College, Valhalla, NY, USA
- General Nutraceutical Technology, Elmsford, NY, USA
| | - Taoyun Xie
- The Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou, Guangdong, People’s Republic of China
| | - Ziyi Fu
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People’s Republic of China
| | - Junxiong Li
- Guangdong Province Hospital of Integrated Chinese and Western Medicine, Foshan, Guangdong, People’s Republic of China
| | - Xiaohong Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People’s Republic of China
| | - Hugh A Sampson
- Department of Pediatrics, Division of Allergy and Immunology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Xiu-Min Li
- Department of Pathology, Microbiology & Immunology, New York Medical College, Valhalla, NY, USA
- Department of Otolaryngology, Westchester Medical Center New York Medical College, Valhalla, NY, USA
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Liu C, Cao M, Yang N, Reid-Adam J, Tversky J, Zhan J, Li XM. Time-dependent dual beneficial modulation of interferon-γ, interleukin 5, and Treg cytokines in asthma patient peripheral blood mononuclear cells by ganoderic acid B. Phytother Res 2022; 36:1231-1240. [PMID: 35112740 DOI: 10.1002/ptr.7266] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 06/20/2021] [Accepted: 08/14/2021] [Indexed: 11/09/2022]
Abstract
Th2 cytokines play a dominant role in the pathogenesis of allergic asthma. Interferon gamma (IFN-γ), a Th1 cytokine, links to therapeutic mechanisms of allergic asthma. Interleukin (IL)-10, a regulatory cytokine, is involved in the induction of immune tolerance. We previously demonstrated that Anti-Asthma Simplified Herbal Medicine Intervention (ASHMI) suppressed Th2 and increased IFN-γ in patients with asthma and in animal models, but its bioactive compound is unknown. Ganoderic acid beta (GAB) was isolated from Ganoderma lucidum (one herb in ASHMI). Human peripheral blood mononuclear cells (PBMCs) from adult patients with asthma were cultured with GAB or dexamethasone (Dex) in the presence of environmental allergens. The cytokine levels of IL-10, IFN-γ, IL-5, transcription factors T-bet, Foxp-3, and GATA3 were measured. Following 3-day culture, GAB, but not Dex, significantly increased IL-10 and IFN-γ levels by allergic patients' PBMCs. Following 6-day treatment, GAB inhibited IL-5 production, but IL-10 and IFN-γ remained high. Dex suppressed production of all three cytokines. GAB suppressed GATA3 and maintained Foxp-3 and T-bet gene expression, while Dex significantly suppressed GATA3 and T-bet expression. GAB simultaneously increased IL-10, IFN-γ associated with induction of T-bet and Foxp3, while suppressing IL-5, which was associated with suppression of GATA3, demonstrating unique beneficial cytokine modulatory effect, which distinguishes from Dex's overall suppression.
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Affiliation(s)
- Changda Liu
- Academy of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, China
| | - Mingzhuo Cao
- Academy of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, China
| | - Nan Yang
- General Nutraceutical Technology LLC, Elmsford, New York, USA.,Department of Microbiology and Immunology, New York Medical College, Valhalla, New York, USA
| | - Jessica Reid-Adam
- Department of Pediatrics, Icahn School of Medicine, Mount Sinai, New York, New York, USA
| | - Jody Tversky
- The Department of Medicine, Division of Allergy and Clinical Immunology, Johns Hopkins Asthma and Allergy Center, Baltimore, Maryland, USA
| | - Jixun Zhan
- Department of Biological Engineering, Utah State University, Logan, Utah, USA
| | - Xiu-Min Li
- Department of Microbiology and Immunology, New York Medical College, Valhalla, New York, USA.,Department of Otolaryngology, New York Medical College, Valhalla, New York, USA
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Li X, Jin F, Lee HJ, Lee CJ. Kaempferol Regulates the Expression of Airway MUC5AC Mucin Gene via IκBα-NF-κB p65 and p38-p44/42-Sp1 Signaling Pathways. Biomol Ther (Seoul) 2021; 29:303-310. [PMID: 33281120 PMCID: PMC8094069 DOI: 10.4062/biomolther.2020.149] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 11/11/2020] [Accepted: 11/12/2020] [Indexed: 01/21/2023] Open
Abstract
In the present study, kaempferol, a flavonoidal natural compound found in Polygonati Rhizoma, was investigated for its potential effect on the gene expression and production of airway MUC5AC mucin. A human respiratory epithelial NCI-H292 cells was pretreated with kaempferol for 30 min and stimulated with epidermal growth factor (EGF) or phorbol 12-myristate 13-acetate (PMA), for the following 24 h. The effect on PMA-induced nuclear factor kappa B (NF-κB) signaling pathway or EGF-induced mitogen-activated protein kinase (MAPK) signaling pathway was investigated. Kaempferol suppressed the production and gene expression of MUC5AC mucins, induced by PMA through the inhibition of degradation of inhibitory kappa Bα (IκBα), and NF-κB p65 nuclear translocation. Also, kaempferol inhibited EGF-induced gene expression and production of MUC5AC mucin through regulating the phosphorylation of EGFR, phosphorylation of p38 MAPK and extracellular signal-regulated kinase (ERK) 1/2 (p44/42), and the nuclear expression of specificity protein-1 (Sp1). These results suggest kaempferol regulates the gene expression and production of mucin through regulation of NF-κB and MAPK signaling pathways, in human airway epithelial cells.
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Affiliation(s)
- Xin Li
- Department of Pharmacology, School of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Fengri Jin
- Department of Pharmacology, School of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Hyun Jae Lee
- Smith Liberal Arts College and Department of Addiction Science, Graduate School, Sahmyook University, Seoul 01795, Republic of Korea
| | - Choong Jae Lee
- Department of Pharmacology, School of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
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Jin F, Li X, Lee HJ, Lee CJ. Diclofenac Inhibits Phorbol Ester-Induced Gene Expression and Production of MUC5AC Mucin via Affecting Degradation of IkBα and Translocation of NF-kB p65 in NCI-H292 Cells. Biomol Ther (Seoul) 2020; 28:431-436. [PMID: 32753566 PMCID: PMC7457166 DOI: 10.4062/biomolther.2020.090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/13/2020] [Accepted: 07/13/2020] [Indexed: 12/24/2022] Open
Abstract
In this study, diclofenac, a non-steroidal anti-inflammatory drug, was investigated for its potential effect on the gene expression and production of airway MUC5AC mucin. The human respiratory epithelial NCI-H292 cells were pretreated with diclofenac for 30 min and stimulated with phorbol 12-myristate 13-acetate (PMA), for the following 24 h. The effect of diclofenac on PMA-induced nuclear factor kappa B (NF-kB) signaling pathway was also investigated. Diclofenac suppressed the production and gene expression of MUC5AC mucins, induced by PMA through the inhibition of degradation of inhibitory kappa Bα (IkBα) and NF-kB p65 nuclear translocation. These results suggest diclofenac regulates the gene expression and production of mucin through regulation of NF-kB signaling pathway, in human airway epithelial cells.
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Affiliation(s)
- Fengri Jin
- Department of Pharmacology, School of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Xin Li
- Department of Pharmacology, School of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Hyun Jae Lee
- Smith Liberal Arts College and Department of Addiction Science, Graduate School, Sahmyook University, Seoul 01795, Republic of Koreance, Graduate School, Sahmyook University, Seoul 01795, Republic of Korea
| | - Choong Jae Lee
- Department of Pharmacology, School of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
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Li X, Jin F, Lee HJ, Lee CJ. Recent Advances in the Development of Novel Drug Candidates for Regulating the Secretion of Pulmonary Mucus. Biomol Ther (Seoul) 2020; 28:293-301. [PMID: 32133827 PMCID: PMC7327140 DOI: 10.4062/biomolther.2020.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 01/30/2020] [Accepted: 02/17/2020] [Indexed: 12/14/2022] Open
Abstract
Hypersecretion of pulmonary mucus is a major pathophysiological feature in allergic and inflammatory respiratory diseases including asthma and chronic obstructive pulmonary disease (COPD). Overproduction and/or oversecretion of mucus cause the airway obstruction and the colonization of pathogenic microbes. Developing a novel pharmacological agent to regulate the production and/or secretion of pulmonary mucus can be a useful strategy for the effective management of pathologic hypersecretion of mucus observed in COPD and asthma. Thus, in the present review, we tried to give an overview of the conventional pharmacotherapy for mucus-hypersecretory diseases and recent research results on searching for the novel candidate agents for controlling of pulmonary mucus hypersecretion, aiming to shed light on the potential efficacious pharmacotherapy of mucus-hypersecretory diseases.
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Affiliation(s)
- Xin Li
- Department of Pharmacology, School of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Fengri Jin
- Department of Pharmacology, School of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Hyun Jae Lee
- Smith Liberal Arts College and Department of Addiction Science, Graduate School, Sahmyook University, Seoul 01795, Republic of Korea
| | - Choong Jae Lee
- Department of Pharmacology, School of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
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Samsuzzaman M, Uddin MS, Shah MA, Mathew B. Natural inhibitors on airway mucin: Molecular insight into the therapeutic potential targeting MUC5AC expression and production. Life Sci 2019; 231:116485. [PMID: 31116959 DOI: 10.1016/j.lfs.2019.05.041] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/08/2019] [Accepted: 05/15/2019] [Indexed: 11/19/2022]
Abstract
Airway mucin overproduction is the hallmark risk factor of asthma, which is associated with the reduction of lung function. An aberrant mucin expression is responsible for airway obstruction due to its high viscous characteristics. Among the mucins discovered, MUC5AC is the prime mucin of airway epithelia. Nowadays, mucins induced asthma and chronic obstructive pulmonary disease (COPD) are a great concern all over the world. This review focuses on the effects of natural compounds that can be beneficial to explore new drugs to halt MUC5AC secretion and production in airway epithelial, and also their underlying molecular mechanisms based on recent studies. Several researchers are seeking natural sources to identify a new potent MUC5AC inhibitory agent for clinical applications, because of countable limitations of existing synthetic drugs. Currently, flavonoids, glycoside and steroids like natural compounds have acquired great attention due to their anti-inflammatory and mucoregulatory effects. Most importantly, many natural compounds have shown their potential effects as the modulator of mucin expression, secretion, and production. Therefore, targeting airway MUC5AC expression and production represents an auspicious area of research for the development of drugs against various respiratory diseases.
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Affiliation(s)
- Md Samsuzzaman
- Department of Molecular Medicine, School of Medicine, Keimyung University, Daegu 42601, South Korea; Department of Food and Life Science, Pukyong National University, Busan 48513, South Korea
| | - Md Sahab Uddin
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh; Pharmakon Neuroscience Research Network, Dhaka, Bangladesh.
| | - Muhammad Ajmal Shah
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | - Bijo Mathew
- Division of Drug Design and Medicinal Chemistry Research Lab, Department of Pharmaceutical Chemistry, Ahalia School of Pharmacy, Palakkad, India
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Luteolin inhibited the gene expression, production and secretion of MUC5AC mucin via regulation of nuclear factor kappa B signaling pathway in human airway epithelial cells. Pulm Pharmacol Ther 2015; 31:117-22. [DOI: 10.1016/j.pupt.2014.09.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 08/12/2014] [Accepted: 09/25/2014] [Indexed: 11/20/2022]
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Liu C, Weir D, Busse P, Yang N, Zhou Z, Emala C, Li XM. The Flavonoid 7,4'-Dihydroxyflavone Inhibits MUC5AC Gene Expression, Production, and Secretion via Regulation of NF-κB, STAT6, and HDAC2. Phytother Res 2015; 29:925-32. [PMID: 25809288 DOI: 10.1002/ptr.5334] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 02/26/2015] [Accepted: 02/27/2015] [Indexed: 12/22/2022]
Abstract
Mucus overproduction is a significant component of the pathophysiology of obstructive lung diseases. Currently, there are only a few medications available that inhibit mucus production. Previous studies showed that glycyrrhizin, a triterpenoid in Glycyrrhiza uralensis inhibits mucin 5AC (MUC5AC) mRNA and protein expression. Other potential mucus production inhibitory compounds contained within in G. uralensis have not been fully investigated. The aim of the present study was to determine if the G. uralensis flavonoid 7,4'-dihydroxyflavone (7,4'-DHF) inhibits MUC5AC gene expression, mucus production, and secretion, and if so, to elucidate the mechanism of this inhibition. 7,4'-Dihydroxyflavone significantly decreased phorbol 12-myristate 13-acetate-stimulated NCI-H292 human airway epithelial cell MUC5AC gene expression and mucus production, at a 28-fold lower concentration than glycyrrhizin (The half maximal inhibitory concentration IC50 value of 1.4 μM vs 38 μM, respectively); 7,4'-DHF also inhibited MUC5AC mucus secretion. Inhibition was associated with the suppression of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), signal transducer and activator of transcription 6 (STAT6) activation, and enhanced histone deacetylase 2 (HDAC2) expression. In a murine model of asthma, 7,4'-DHF-treated mice exhibited a marked reduction in MUC5AC secretion in the bronchoalveolar lavage fluid compared with control mice. These findings, together with previous findings linking NF-κB, STAT6, and HDAC2 modulation to the control of MUC5AC expression, demonstrate that 7,4'-DHF is a newly identified component of G. uralensis that regulates MUC5AC expression and secretion via regulation of NF-κB, STAT6, and HDAC2.
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Affiliation(s)
- Changda Liu
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - David Weir
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Paula Busse
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Nan Yang
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Zhenwen Zhou
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong, China
| | - Charles Emala
- Department of Anesthesiology, Columbia University, New York, NY, USA
| | - Xiu-Min Li
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Macha MA, Krishn SR, Jahan R, Banerjee K, Batra SK, Jain M. Emerging potential of natural products for targeting mucins for therapy against inflammation and cancer. Cancer Treat Rev 2015; 41:277-88. [PMID: 25624117 DOI: 10.1016/j.ctrv.2015.01.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 12/31/2014] [Accepted: 01/07/2015] [Indexed: 02/07/2023]
Abstract
Deregulated mucin expression is a hallmark of several inflammatory and malignant pathologies. Emerging evidence suggests that, apart from biomarkers, these deregulated mucins are functional contributors to the pathogenesis in inflammation and cancer. Both overexpression and downregulation of mucins in various organ systems is associated with pathobiology of inflammation and cancer. Restoration of mucin homeostasis has become an important goal for therapy and management of such disorders has fueled the quest for selective mucomodulators. With improved understanding of mucin regulation and mechanistic insights into their pathobiological roles, there is optimism to find selective non-toxic agents capable of modulating mucin expression and function. Recently, natural compounds derived from dietary sources have drawn attention due to their anti-inflammatory and anti-oxidant properties and low toxicity. Considerable efforts have been directed towards evaluating dietary natural products as chemopreventive and therapeutic agents; identification, characterization and synthesis of their active compounds; and improving their delivery and bioavailability. We describe the current understanding of mucin regulation, rationale for targeting mucins with natural products and discuss some natural products that modulate mucin expression and functions. We further discuss the approaches and parameters that should guide future research to identify and evaluate selective natural mucomodulators for therapy.
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Affiliation(s)
- Muzafar A Macha
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA.
| | - Shiv Ram Krishn
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Rahat Jahan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Kasturi Banerjee
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Maneesh Jain
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA; Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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Sikder MA, Lee HJ, Ryu J, Park SH, Kim JO, Hong JH, Seok JH, Lee CJ. Apigenin and Wogonin Regulate Epidermal Growth Factor Receptor Signaling Pathway Involved in MUC5AC Mucin Gene Expression and Production from Cultured Airway Epithelial Cells. Tuberc Respir Dis (Seoul) 2014; 76:120-6. [PMID: 24734099 PMCID: PMC3982238 DOI: 10.4046/trd.2014.76.3.120] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 12/30/2013] [Accepted: 01/23/2014] [Indexed: 12/17/2022] Open
Abstract
Background We investigated whether wogonin and apigenin significantly affect the epidermal growth factor receptor (EGFR) signaling pathway involved in MUC5AC mucin gene expression, and production from cultured airway epithelial cells; this was based on our previous report that apigenin and wogonin suppressed MUC5AC mucin gene expression and production from human airway epithelial cells. Methods Confluent NCI-H292 cells were pretreated with wogonin or apigenin for 15 minutes or 24 hours and then stimulated with epidermal growth factor (EGF) for 24 hours or the indicated periods. Results We found that incubation of NCI-H292 cells with wogonin or apigenin inhibited the phosphorylation of EGFR. The downstream signals of EGFR such as phosphorylation of MEK1/2 and ERK1/2 were also inhibited by wogonin or apigenin. Conclusion The results suggest that wogonin and apigenin inhibits EGFR signaling pathway, which may explain how they inhibit MUC5AC mucin gene expression and production induced by EGF.
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Affiliation(s)
- Md Asaduzzaman Sikder
- Department of Pharmacology, Chungnam National University School of Medicine, Daejeon, Korea
| | - Hyun Jae Lee
- Department of Pharmacology, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jiho Ryu
- Department of Pharmacology, Chungnam National University School of Medicine, Daejeon, Korea
| | - Su Hyun Park
- Department of Pharmacology, Chungnam National University School of Medicine, Daejeon, Korea
| | - Ju-Ock Kim
- Pulmonology Section, Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jang-Hee Hong
- Department of Pharmacology, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jeong Ho Seok
- Department of Pharmacology, Chungnam National University School of Medicine, Daejeon, Korea
| | - Choong Jae Lee
- Department of Pharmacology, Chungnam National University School of Medicine, Daejeon, Korea
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Ryu J, Lee HJ, Park SH, Sikder MA, Kim JO, Hong JH, Seok JH, Lee CJ. Effect of Prunetin on TNF-α-Induced MUC5AC Mucin Gene Expression, Production, Degradation of IκB and Translocation of NF-κB p65 in Human Airway Epithelial Cells. Tuberc Respir Dis (Seoul) 2013; 75:205-9. [PMID: 24348668 PMCID: PMC3861376 DOI: 10.4046/trd.2013.75.5.205] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 10/10/2013] [Accepted: 10/15/2013] [Indexed: 12/31/2022] Open
Abstract
Background We investigated whether prunetin significantly affects tumor necrosis factor-α (TNF-α)-induced MUC5AC mucin gene expression, production, inhibitory kappa B (IκB) degradation and nuclear factor kappa B (NF-κB) p65 translocation in human airway epithelial cells. Methods Confluent NCI-H292 cells were pretreated with prunetin for 30 minutes and then stimulated with TNF-α for 24 hours or the indicated periods. MUC5AC mucin gene expression and mucin protein production were measured by reverse transcription polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. The effect of prunetin on TNF-α-induced degradation of IκB and translocation of NF-κB p65 was investigated by western blot analysis. Results We found that incubation of NCI-H292 cells with prunetin significantly inhibited mucin production and down-regulated the MUC5AC gene expression induced by TNF-α. Prunetin inhibited TNF-α-induced degradation of IκB and translocation of NF-κB p65. Conclusion This result suggests that prunetin inhibits the NF-κB signaling pathway, which may explain its role in the inhibition of MUC5AC mucin gene expression and production regulated by the NF-κB signaling pathway.
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Affiliation(s)
- Jiho Ryu
- Department of Pharmacology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Hyun Jae Lee
- Department of Pharmacology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Su Hyun Park
- Department of Pharmacology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Md Asaduzzaman Sikder
- Department of Pharmacology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Ju-Ock Kim
- Department of Pharmacology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea. ; Pulmonology Section, Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jang-Hee Hong
- Department of Pharmacology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jeong Ho Seok
- Department of Pharmacology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Choong Jae Lee
- Department of Pharmacology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
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12
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Sikder MA, Lee HJ, Mia MZ, Park SH, Ryu J, Kim JH, Min SY, Hong JH, Seok JH, Lee CJ. Inhibition of TNF-α-induced MUC5AC mucin gene expression and production by wogonin through the inactivation of NF-κB signaling in airway epithelial cells. Phytother Res 2013; 28:62-8. [PMID: 23463646 DOI: 10.1002/ptr.4954] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 01/22/2013] [Accepted: 02/01/2013] [Indexed: 12/21/2022]
Abstract
In this study, we investigated whether wogonin significantly affects MUC5AC mucin gene expression and production in human airway epithelial cells. Confluent NCI-H292 cells were pretreated with wogonin for 30 min and then stimulated with tumor necrosis factor-α (TNF-α) for 24 h or the indicated periods. The MUC5AC mucin gene expression and mucin protein production were measured by RT-PCR and ELISA, respectively. We found that incubation of NCI-H292 cells with wogonin significantly inhibited mucin production and down-regulated MUC5AC gene expression induced by TNF-α in a dose-dependent fashion. To elucidate the action mechanism of wogonin, effect of wogonin on TNF-α-induced NF-κB signaling pathway was investigated by western blot analysis. Wogonin inhibited NF-κB activation induced by TNF-α. Inhibition of IKK by wogonin led to the suppression of IκB phosphorylation and degradation, p65 nuclear translocation and NF-κB-regulated gene expression. This, in turn, led to the down-regulation of MUC5AC protein production in NCI-H292 cells. Wogonin also inhibited the gene products involved in cell survival (Bcl-2) and proliferation (cyclooxygenase-2). These results suggest that wogonin inhibits the NF-κB signaling pathway, which may explain its role in the inhibition of MUC5AC mucin gene expression and production.
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Affiliation(s)
- Md Asaduzzaman Sikder
- Department of Pharmacology, School of Medicine, Chungnam National University, Daejeon, Korea
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