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Koga Y, Kamide Y, Hisada T, Ishizuka T. Editorial: Pathophysiological and clinical advances in asthmatic inflammation from the nasopharynx to the peripheral airway in the respiratory tract systems. Front Pharmacol 2023; 14:1037610. [PMID: 36726579 PMCID: PMC9885187 DOI: 10.3389/fphar.2023.1037610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 01/06/2023] [Indexed: 01/19/2023] Open
Affiliation(s)
- Yasuhiko Koga
- Department of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan,*Correspondence: Yasuhiko Koga,
| | - Yosuke Kamide
- Clinical Research Center for Allergy and Rheumatology, Sagamihara National Hospital, Sagamihara, Japan
| | - Takeshi Hisada
- Gunma University Graduate School of Health Sciences, Maebashi, Gunma, Japan
| | - Tamotsu Ishizuka
- Third Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
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Iwashita J, Maeda H, Ishimura M, Murata J. Type IV collagen reduces MUC5AC secretion in the lungs of ovalbumin-sensitized mice. Front Pharmacol 2022; 13:851374. [PMID: 36188610 PMCID: PMC9523140 DOI: 10.3389/fphar.2022.851374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Accepted: 07/26/2022] [Indexed: 11/26/2022] Open
Abstract
Mucin 5AC (MUC5AC) is excessively secreted in the respiratory tract of patients with asthma. Suppressing this secretion is important for improving the air passages, which facilitates easy breathing. We have previously reported that the addition of type IV collagen, a typical extracellular matrix (ECM) protein, to the culture medium for human cell lines and primary cells reduced MUC5AC secretion. In this report, we further investigated the effect of type IV collagen on MUC5AC secretion in vivo. We employed ovalbumin (OVA)-sensitized mice to model of asthma and exposed them to type IV collagen to verify the reducing effect of MUC5AC in vivo. The amount of MUC5AC in bronchoalveolar lavage fluid was examined after nebulization of type IV collagen. Hypersecretion of MUC5AC of the OVA-sensitized mice was suppressed by type IV collagen exposure in a time- and dose-dependent manner. Furthermore, type IV collagen exposure to OVA-sensitized mice decreased integrin α2 and β1 expression in the lungs and increased the levels of Akt and extracellular signal-regulated kinase (ERK) phosphorylation in the trachea. These results suggest that type IV collagen suppresses MUC5AC hypersecretion via modulating integrin expression and Akt/ERK phosphorylation in the respiratory tract of the OVA-sensitized mice.
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Joseph C, Tatler AL. Pathobiology of Airway Remodeling in Asthma: The Emerging Role of Integrins. J Asthma Allergy 2022; 15:595-610. [PMID: 35592385 PMCID: PMC9112045 DOI: 10.2147/jaa.s267222] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/25/2022] [Indexed: 12/19/2022] Open
Abstract
Airway remodeling is a complex clinical feature of asthma that involves long-term disruption and modification of airway architecture, which contributes significantly to airway hyperresponsiveness (AHR) and lung function decline. It is characterized by thickening of the airway smooth muscle layer, deposition of a matrix below the airway epithelium, resulting in subepithelial fibrosis, changes within the airway epithelium, leading to disruption of the barrier, and excessive mucous production and angiogenesis within the airway wall. Airway remodeling contributes to stiffer and less compliant airways in asthma and leads to persistent, irreversible airflow obstruction. Current asthma treatments aim to reduce airway inflammation and exacerbations but none are targeted towards airway remodeling. Inhibiting the development of airway remodeling or reversing established remodeling has the potential to dramatically improve symptoms and disease burden in asthmatic patients. Integrins are a family of transmembrane heterodimeric proteins that serve as the primary receptors for extracellular matrix (ECM) components, mediating cell-cell and cell-ECM interactions to initiate intracellular signaling cascades. Cells present within the lungs, including structural and inflammatory cells, express a wide and varying range of integrin heterodimer combinations and permutations. Integrins are emerging as an important regulator of inflammation, repair, remodeling, and fibrosis in the lung, particularly in chronic lung diseases such as asthma. Here, we provide a comprehensive summary of the current state of knowledge on integrins in the asthmatic airway and how these integrins promote the remodeling process, and emphasize their potential involvement in airway disease.
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Affiliation(s)
- Chitra Joseph
- Centre for Respiratory Research, National Institute for Health Research Biomedical Research Centre, School of Medicine, University of Nottingham, Nottingham, UK
| | - Amanda L Tatler
- Centre for Respiratory Research, National Institute for Health Research Biomedical Research Centre, School of Medicine, University of Nottingham, Nottingham, UK
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Iwashita J, Murata J. Integrin β1 subunit regulates cellular and secreted MUC5AC and MUC5B production in NCI-H292 human lung epithelial cells. Biochem Biophys Rep 2021; 28:101124. [PMID: 34504957 PMCID: PMC8416645 DOI: 10.1016/j.bbrep.2021.101124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 12/24/2022] Open
Abstract
The surface of the human respiratory tract is covered with a mucus layer containing mucin 5AC (MUC5AC) and mucin 5B (MUC5B) as the main components. This layer contributes to biological defense by eliminating irritants, but excessive MUC5AC secretion by the airway epithelial cells exacerbates asthma. Therefore, regulating mucin production is important for asthma treatment. In this study, the effects of integrin β1 subunit on MUC5AC and MUC5B production were examined in NCI–H292 human lung cancer epithelial cells. When integrin β1 was overexpressed, cellular and secreted MUC5AC levels were decreased, whereas cellular MUC5B production was increased. Conversely, integrin β1 depletion using siRNA increased cellular and secreted MUC5AC production, but decreased cellular MUC5B production. Further, the activity of extracellular signal-regulated kinase (ERK), which promotes MUC5AC production, was decreased by integrin β1 overexpression and increased by its depletion. These results suggest that integrin β1 suppresses MUC5AC production and promotes MUC5B production by downregulating ERK. We studied the regulation of MUC5AC and MUC5B production by integrin β1 subunit. Integrin β1 overexpression reduced MUC5AC, but increased MUC5B levels. Integrin β1 depletion increased MUC5AC production and ROS level, but decreased MUC5B production. Integrin β1 overexpression decreased ERK activity in NCI–H292 airway cells. Integrin β1 downregulates ERK to suppress MUC5AC & promote MUC5B production.
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Affiliation(s)
- Jun Iwashita
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Shimoshinjo-Nakano, Akita, Akita, 010-0195, Japan
| | - Jun Murata
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Shimoshinjo-Nakano, Akita, Akita, 010-0195, Japan
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5
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Ito Y, Iwashita J, Murata J. Type IV collagen reduces mucin 5AC secretion in three-dimensional cultured human primary airway epithelial cells. Biochem Biophys Rep 2019; 20:100707. [PMID: 31737795 PMCID: PMC6849133 DOI: 10.1016/j.bbrep.2019.100707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 11/02/2019] [Accepted: 11/04/2019] [Indexed: 11/30/2022] Open
Abstract
Mucin 5AC (MUC5AC) hypersecretion induces airway narrowing in patients with asthma, which leads to breathing problems. We investigated the regulation of MUC5AC secretion by extracellular matrix (ECM) proteins in human primary airway epithelial cells from patients with asthma. The addition of type IV collagen to three-dimensional cultured human primary airway epithelial cells, which mimics the airway surface, reduced MUC5AC secretion in the medium, while the addition of laminin increased MUC5AC secretion. Furthermore, the addition of fibronectin did not affect MUC5AC secretion. In particular, the repeated addition of a low concentration of type IV collagen demonstrated a cumulative effect on the reduction in MUC5AC secretion. Human primary cells incubated with type IV collagen showed downregulated extracellular signal-regulated kinase (ERK) activity, which induced MUC5AC hypersecretion but did not affect Akt activity. These results suggest that the addition of type IV collagen to the apical surface of primary cells downregulates MUC5AC secretion and has a cumulative effect on MUC5AC secretion which might be effected via the ERK signaling pathway. We studied the regulation of MUC5AC secretion by extracellular matrix proteins. The addition of type IV collagen reduced MUC5AC secretion in primary airway cells. The repeated addition of a low concentration of collagen reduced MUC5AC secretion. Type IV collagen induced the downregulation of ERK which induces MUC5AC secretion.
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Affiliation(s)
- Yuho Ito
- Environmental Protection Division, Research Center for Public Health and Environment, Akita, Japan
| | - Jun Iwashita
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Shimoshino-Nakano, Akita, Akita, 010-0195, Japan
| | - Jun Murata
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Shimoshino-Nakano, Akita, Akita, 010-0195, Japan
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Hu M, Liu Y, Wang L, Wang J, Li L, Wu C. Purification, Characterization of Two Polysaccharides from Pinelliae Rhizoma Praeparatum Cum Alumine and Their Anti-Inflammatory Effects on Mucus Secretion of Airway Epithelium. Int J Mol Sci 2019; 20:ijms20143553. [PMID: 31330806 PMCID: PMC6678706 DOI: 10.3390/ijms20143553] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/13/2019] [Accepted: 07/17/2019] [Indexed: 12/21/2022] Open
Abstract
Pinelliae Rhizoma Praeparatum cum Alumine (PRPCA) is an important traditional processed herbal medicine mainly used for treating phlegm in China for more than 2000 years. In our previous studies, extraction optimization, characterization, and bioactivities of total polysaccharides from PRPCA were investigated. In this study, further purification of these polysaccharides was performed. Two polysaccharides named neutral fraction of total polysaccharides-II (TPN-II) and acidic fraction of total polysaccharides-II (TPA-II) were obtained by gradient ion-exchange chromatography followed by gel-permeation chromatography. Results of scanning electron microscopy (SEM) analysis in the present study showed that TPN-II had a tight structure with a rough and uneven surface, while TPA-II had a relative homogeneous surface and a loose structure. Further studies indicated that TPN-II was a homosaccharide mainly composed by glucose with a molecular weight of 8.0 kDa. TPA-II was mainly composed of mannose, rhamnose, glucuronic acid, galacturonic acid, glucose, galactose and arabinose in a molar ratio of 2.1, 2.3, 1.7, 10.6, 2.6, 14.2, and 2.5, with a molecular weight of 1250 kDa. The nuclear magnetic resonance (NMR) results indicated that α and β form glycoside bonds existed in TPN-II and TPA-II, and TPN-II was composed of α-glucopyranose. In addition, both purified polysaccharides have significant anti-inflammatory effects on mucus secretion of human airway epithelial NCI-H292 cells without cytotoxicity. Compared with TPN-II, TPA-II exhibited more significant anti-inflammatory effects on lipopolysaccharide (LPS)-induced airway inflammation by regulating levels of interleukin-4 (IL-4) and interferon-γ (IFN-γ) and inhibiting mucus secretion. The results suggest that polysaccharides from PRPCA could be explored as therapeutic agents in treating inflammation and over secretion of mucus in asthma.
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Affiliation(s)
- Meibian Hu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yujie Liu
- School of Pharmacy, Chengdu Medical College, Chengdu 610500, China
| | - Li Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jiaolong Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Lin Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Chunjie Wu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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Lakshmanan I, Ponnusamy MP, Macha MA, Haridas D, Majhi PD, Kaur S, Jain M, Batra SK, Ganti AK. Mucins in lung cancer: diagnostic, prognostic, and therapeutic implications. J Thorac Oncol 2015; 10:19-27. [PMID: 25319180 DOI: 10.1097/jto.0000000000000404] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Aberrant expression of mucins is associated with cancer development and metastasis. An overexpression of few mucins contributes to oncogenesis by enhancing cancer cell growth and providing constitutive survival signals. This review focuses on the importance of mucins both in the normal bronchial epithelial cells and the malignant tumors of the lung and their contribution in the diagnosis and prognosis of lung cancer patients. During lung cancer progression, mucins either alone or through their interaction with many receptor tyrosine kinases mediate cell signals for growth and survival of cancer cells. Also, stage-specific expression of certain mucins, like MUC1, is associated with poor prognosis from lung cancer. Thus, mucins are emerging as attractive targets for developing novel therapeutic approaches for lung cancer. Several strategies targeting mucin expression and function are currently being investigated to control lung cancer progression.
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Affiliation(s)
- Imayavaramban Lakshmanan
- *Department of Biochemistry and Molecular Biology, †Department of Pathology and Microbiology, ‡Eppley Institute for Research in Cancer and Allied Diseases, §Department of Internal Medicine, VA Nebraska-Western Iowa Health Care System, Omaha, Nebraska, and ‖Division of Oncology-Hematology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska
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Hata H, Natsuga K, Kitamura S, Imafuku K, Yamaguchi Y, Ebihara Y, Shichinohe T, Hirano S, Shimizu H. Concomitant neoplasms in the skin and stomach unveil the role of type IV collagen and E-cadherin in mucin core protein 5AC expression in vivo. Br J Dermatol 2015; 174:395-7. [PMID: 26285645 DOI: 10.1111/bjd.14084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2015] [Indexed: 11/27/2022]
Abstract
Mucin core protein (MUC) 5AC is a gel-forming glycoprotein that is expressed in different types of tumour cells. MUC5AC expression in cultured cells is regulated through the extracellular matrix and through remodelling by other membranous proteins such as type IV collagen (COL4) and E-cadherin. However, it has not been elucidated whether COL4 and E-cadherin affect MUC5AC expression in tumours in vivo. Here, by analysing a single individual with concomitant neoplasms in the skin [extramammary Paget disease (EMPD)] and the stomach (gastric cancer), we show that MUC5AC expression is reduced in COL4 and membranous E-cadherin-expressing EMPD specimens whereas MUC5AC is not abolished in gastric cancer with COL4 negativity and E-cadherin cytoplasmic localization. As the EMPD and gastric cancer specimens were derived from a single patient, each specimen had the same genetic background. These in vivo results support previous in vitro studies which showed that COL4 and E-cadherin downregulated MUC5AC expression. Our study suggests that concomitant neoplasms in different organs of the same individual can serve as a strong tool for uncovering functional diversity in tumour markers in distinct cancer cells.
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Affiliation(s)
- H Hata
- Department of Dermatology, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo, 060-8638, Japan
| | - K Natsuga
- Department of Dermatology, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo, 060-8638, Japan
| | - S Kitamura
- Department of Dermatology, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo, 060-8638, Japan
| | - K Imafuku
- Department of Dermatology, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo, 060-8638, Japan
| | - Y Yamaguchi
- Department of Dermatology, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo, 060-8638, Japan
| | - Y Ebihara
- Department of Gastroenterological Surgery II, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo, 060-8638, Japan
| | - T Shichinohe
- Department of Gastroenterological Surgery II, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo, 060-8638, Japan
| | - S Hirano
- Department of Gastroenterological Surgery II, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo, 060-8638, Japan
| | - H Shimizu
- Department of Dermatology, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo, 060-8638, Japan
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Ito Y, Iwashita J, Kudoh A, Kuramata C, Murata J. MUC5B mucin production is upregulated by fibronectin and laminin in human lung epithelial cells via the integrin and ERK dependent pathway. Biosci Biotechnol Biochem 2015; 79:1794-801. [PMID: 26057585 DOI: 10.1080/09168451.2015.1052769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
MUC5B mucin is a principal component of airway mucus and plays a key role in biodefense. We investigated the regulation of MUC5B production using the signals from extracellular matrix (ECM) components in NCI-H292 human lung epithelial cells. We found that MUC5B production in NCI-H292 cells cultured on fibronectin or laminin increased by 4-5-fold, with the increase occurring in a dose- and time-dependent manner. In contrast, MUC5B production was unchanged on type-IV collagen. Inhibition of integrin β1 induced upregulation of MUC5B and MUC5AC; however, inhibition of p38 MAPK did not show any remarkable change in overproduced MUC5B. Inhibition of extracellular signal-regulated kinase (ERK) pathway or the transcription factor NF-κB induced the recovery of overproduced MUC5B on fibronectin and laminin. These results suggest that MUC5B production can be regulated by ECM components and that MUC5B is upregulated by fibronectin and laminin via the integrin, ERK, and NF-κB dependent pathway.
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Affiliation(s)
- Yuho Ito
- a Faculty of Bioresource Sciences , Akita Prefectural University , Akita , Japan
| | - Jun Iwashita
- a Faculty of Bioresource Sciences , Akita Prefectural University , Akita , Japan
| | - Arisa Kudoh
- a Faculty of Bioresource Sciences , Akita Prefectural University , Akita , Japan
| | - Chika Kuramata
- a Faculty of Bioresource Sciences , Akita Prefectural University , Akita , Japan
| | - Jun Murata
- a Faculty of Bioresource Sciences , Akita Prefectural University , Akita , Japan
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Inhibition of E-Cadherin Dependent Cell-Cell Contact Promotes MUC5AC Mucin Production through the Activation of Epidermal Growth Factor Receptors. Biosci Biotechnol Biochem 2014; 75:688-93. [DOI: 10.1271/bbb.100830] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Iwashita J, Ito Y, Yokoo M, Takahashi S, Murata J. Akt induces down regulation of MUC5AC production in NCI-H292 human airway epithelial cells cultured on extracellular matrix. Biosci Biotechnol Biochem 2014; 78:212-21. [PMID: 25036673 DOI: 10.1080/09168451.2014.877829] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
MUC5AC mucin overproduction is a key feature of asthma as contributes to airway obstruction. The production of MUC5AC is regulated in part by signals from extracellular matrix via integrin pathways, but it remains largely unclear. We investigated the role of Akt, a typical signal transducer in the integrin pathway, in the regulation of MUC5AC production. When NCI-H292 human airway epithelial cells were cultured on laminin or Matrigel, we found that the activity of Akt was suppressed, as compared to control cells with upregulated MUC5AC production. In contrast, Akt was activated in cells cultured on type IV collagen with downregulated MUC5AC production. The Akt inhibitor induced upregulation of MUC5AC. In contrast, overexpression of active Akt induced downregulation of MUC5AC production. These results suggest that a signal from laminin or Matrigel induces upregulation of MUC5AC by suppressing Akt activity, whereas a signal from type IV collagen induces downregulation of MUC5AC, mediated by Akt activation.
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Affiliation(s)
- Jun Iwashita
- a Faculty of Bioresource Sciences, Akita Prefectural University , Akita , Japan
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Iwashita J, Hongo K, Ito Y, Abe T, Murata J. Regulation of MUC5AC mucin production by the cell attachment dependent pathway involving integrin <i>β</i>1 in NCI-H292 human lung epithelial cells. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/abc.2013.31001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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