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Yao Y, Zheng M, Borkar NA, Thompson MA, Zhang EY, Koloko Ngassie ML, Wang S, Pabelick CM, Vogel ER, Prakash YS. Role of STIM1 in stretch-induced signaling in human airway smooth muscle. Am J Physiol Lung Cell Mol Physiol 2024; 327:L150-L159. [PMID: 38771147 DOI: 10.1152/ajplung.00370.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 04/12/2024] [Accepted: 05/10/2024] [Indexed: 05/22/2024] Open
Abstract
Alteration in the normal mechanical forces of breathing can contribute to changes in contractility and remodeling characteristic of airway diseases, but the mechanisms that mediate these effects in airway cells are still under investigation. Airway smooth muscle (ASM) cells contribute to both contractility and extracellular matrix (ECM) remodeling. In this study, we explored ASM mechanisms activated by mechanical stretch, focusing on mechanosensitive piezo channels and the key Ca2+ regulatory protein stromal interaction molecule 1 (STIM1). Expression of Ca2+ regulatory proteins, including STIM1, Orai1, and caveolin-1, mechanosensitive ion channels Piezo-1 and Piezo-2, and NLRP3 inflammasomes were upregulated by 10% static stretch superimposed on 5% cyclic stretch. These effects were blunted by STIM1 siRNA. Histamine-induced [Ca2+]i responses and inflammasome activation were similarly blunted by STIM1 knockdown. These data show that the effects of mechanical stretch in human ASM cells are mediated through STIM1, which activates multiple pathways, including Piezo channels and the inflammasome, leading to potential downstream changes in contractility and ECM remodeling.NEW & NOTEWORTHY Mechanical forces on the airway can contribute to altered contractility and remodeling in airway diseases, but the mechanisms are not clearly understood. Using human airway smooth muscle cells exposed to cyclic forces with static stretch to mimic breathing and static pressure, we found that the effects of stretch are mediated through STIM1, resulting in the activation of multiple pathways, including Piezo channels and the inflammasome, with potential downstream influences on contractility and remodeling.
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Affiliation(s)
- Yang Yao
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Medical University, Xi'an, People's Republic of China
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, United States
| | - Mengning Zheng
- Department of Respiratory and Critical Care Medicine, Guizhou Province People's Hospital, Guiyang, People's Republic of China
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, United States
| | - Niyati A Borkar
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, United States
| | - Michael A Thompson
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, United States
| | - Emily Y Zhang
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, United States
| | - Maunick Lefin Koloko Ngassie
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, United States
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Shengyu Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Medical University, Xi'an, People's Republic of China
| | - Christina M Pabelick
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, United States
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, United States
| | - Elizabeth R Vogel
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, United States
| | - Y S Prakash
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, United States
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, United States
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Saint-Martin Willer A, Montani D, Capuano V, Antigny F. Orai1/STIMs modulators in pulmonary vascular diseases. Cell Calcium 2024; 121:102892. [PMID: 38735127 DOI: 10.1016/j.ceca.2024.102892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/27/2024] [Accepted: 04/23/2024] [Indexed: 05/14/2024]
Abstract
Calcium (Ca2+) is a secondary messenger that regulates various cellular processes. However, Ca2+ mishandling could lead to pathological conditions. Orai1 is a Ca2+channel contributing to the store-operated calcium entry (SOCE) and plays a critical role in Ca2+ homeostasis in several cell types. Dysregulation of Orai1 contributed to severe combined immune deficiency syndrome, some cancers, pulmonary arterial hypertension (PAH), and other cardiorespiratory diseases. During its activation process, Orai1 is mainly regulated by stromal interacting molecule (STIM) proteins, especially STIM1; however, many other regulatory partners have also been recently described. Increasing knowledge about these regulatory partners provides a better view of the downstream signalling pathways of SOCE and offers an excellent opportunity to decipher Orai1 dysregulation in these diseases. These proteins participate in other cellular functions, making them attractive therapeutic targets. This review mainly focuses on Orai1 regulatory partners in the physiological and pathological conditions of the pulmonary circulation and inflammation.
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Affiliation(s)
- Anaïs Saint-Martin Willer
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France; INSERM UMR_S 999 Hypertension pulmonaire: Physiopathologie et Innovation Thérapeutique, Hôpital Marie Lannelongue, Le Plessis-Robinson, France
| | - David Montani
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France; INSERM UMR_S 999 Hypertension pulmonaire: Physiopathologie et Innovation Thérapeutique, Hôpital Marie Lannelongue, Le Plessis-Robinson, France; Assistance Publique - Hôpitaux de Paris (AP-HP), Service de Pneumologie et Soins Intensifs Respiratoires, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - Véronique Capuano
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France; INSERM UMR_S 999 Hypertension pulmonaire: Physiopathologie et Innovation Thérapeutique, Hôpital Marie Lannelongue, Le Plessis-Robinson, France; Hôptal Marie Lannelongue, Groupe Hospitalier Paris Saint-Joseph, Le Plessis-Robinson, France
| | - Fabrice Antigny
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France; INSERM UMR_S 999 Hypertension pulmonaire: Physiopathologie et Innovation Thérapeutique, Hôpital Marie Lannelongue, Le Plessis-Robinson, France.
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Tian Q, Zhou J, Xu Z, Wang B, Liao J, Duan K, Li X, Huang E, Xie WB. STIM1 Mediates Methamphetamine-Induced Neuronal Autophagy and Apoptosis. Neurotoxicology 2024; 103:S0161-813X(24)00061-5. [PMID: 38901802 DOI: 10.1016/j.neuro.2024.06.006] [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: 12/11/2023] [Revised: 03/18/2024] [Accepted: 06/10/2024] [Indexed: 06/22/2024]
Abstract
Methamphetamine (METH) is a widely abused amphetamine-type psychoactive drug that causes serious health problems. Previous studies have demonstrated that METH can induce neuron autophagy and apoptosis in vivo and in vitro. However, the molecular mechanisms underlying METH-induced neuron autophagy and apoptosis remain poorly understood. Stromal interacting molecule 1 (STIM1) was hypothesized to be involved in METH-induced neuron autophagy and apoptosis. Therefore, the expression of STIM1 protein was measured and the effect of blocking STIM1 expression with siRNA was investigated in cultured neuronal cells, and the hippocampus and striatum of mice exposed to METH. Furthermore, intracellular calcium concentration and endoplasmic reticulum (ER) stress-related proteins were determined in vitro and in vivo in cells treated with METH. The results suggested that STIM1 mediates METH-induced neuron autophagy by activating the p-Akt/p-mTOR pathway. METH exposure also resulted in increased expression of Orai1, which was reversed after STIM1 silencing. Moreover, the disruption of intracellular calcium homeostasis induced ER stress and up-regulated the expression of pro-apoptotic protein CCAAT/enhancer-binding protein homologous protein (CHOP), resulting in classic mitochondria apoptosis. METH exposure can cause neuronal autophagy and apoptosis by increasing the expression of STIM1 protein; thus, STIM1 may be a potential gene target for therapeutics in METH-caused neurotoxicity.
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Affiliation(s)
- Qin Tian
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Jie Zhou
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Zhenzhen Xu
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Bin Wang
- Forensic Science Institute of Ganzhou Public Security Bureau, Ganzhou 341000, PR China
| | - Jiashun Liao
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Ke Duan
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Xiaoting Li
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Enping Huang
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China
| | - Wei-Bing Xie
- Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, PR China.
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Ouyang M, Zhou B, Li C, Deng L. Characterization of PDGF-Induced Subcellular Calcium Regulation through Calcium Channels in Airway Smooth Muscle Cells by FRET Biosensors. BIOSENSORS 2024; 14:179. [PMID: 38667172 PMCID: PMC11048225 DOI: 10.3390/bios14040179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/21/2024] [Accepted: 04/02/2024] [Indexed: 04/28/2024]
Abstract
The homeostasis of cellular calcium is fundamental for many physiological processes, while the calcium levels remain inhomogeneous within cells. During the onset of asthma, epithelial and inflammatory cells secrete platelet-derived growth factor (PDGF), inducing the proliferation and migration of airway smooth muscle (ASM) to the epidermal layer, narrowing the airway. The regulation of ASM cells by PDGF is closely related to the conduction of calcium signals. In this work, we generated subcellular-targeted FRET biosensors to investigate calcium regulation in the different compartments of ASM cells. A PDGF-induced cytoplasmic calcium [Ca2+]C increase was attributed to both extracellular calcium influx and endoplasmic reticulum (ER) calcium [Ca2+]ER release, which was partially regulated by the PLC-IP3R pathway. Interestingly, the removal of the extracellular calcium influx led to inhibited ER calcium release, likely through inhibitory effects on the calcium-dependent activation of the ER ryanodine receptor. The inhibition of the L-type calcium channel on the plasma membrane or the SERCA pump on the ER resulted in both reduced [Ca2+]C and [Ca2+]ER from PDGF stimulation, while IP3R channel inhibition led to reduced [Ca2+]C only. The inhibited SERCA pump caused an immediate [Ca2+]C increase and [Ca2+]ER decrease, indicating active calcium exchange between the cytosol and ER storage in resting cells. PDGF-induced calcium at the outer mitochondrial membrane sub-region showed a similar regulatory response to cytosolic calcium, not influenced by the inhibition of the mitochondrial calcium uniporter channel. Therefore, our work identifies calcium flow pathways among the extracellular medium, cell cytosol, and ER via regulatory calcium channels. Specifically, extracellular calcium flow has an essential function in fully activating ER calcium release.
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Affiliation(s)
- Mingxing Ouyang
- Institute of Biomedical Engineering and Health Sciences, School of Medical and Health Engineering, Changzhou University, Changzhou 213164, China
| | - Binqian Zhou
- Institute of Biomedical Engineering and Health Sciences, School of Medical and Health Engineering, Changzhou University, Changzhou 213164, China
- School of Pharmacy, Changzhou University, Changzhou 213164, China
| | - Chunmei Li
- Institute of Biomedical Engineering and Health Sciences, School of Medical and Health Engineering, Changzhou University, Changzhou 213164, China
| | - Linhong Deng
- Institute of Biomedical Engineering and Health Sciences, School of Medical and Health Engineering, Changzhou University, Changzhou 213164, China
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Jairaman A, Prakriya M. Calcium Signaling in Airway Epithelial Cells: Current Understanding and Implications for Inflammatory Airway Disease. Arterioscler Thromb Vasc Biol 2024; 44:772-783. [PMID: 38385293 PMCID: PMC11090472 DOI: 10.1161/atvbaha.123.318339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Airway epithelial cells play an indispensable role in protecting the lung from inhaled pathogens and allergens by releasing an array of mediators that orchestrate inflammatory and immune responses when confronted with harmful environmental triggers. While this process is undoubtedly important for containing the effects of various harmful insults, dysregulation of the inflammatory response can cause lung diseases including asthma, chronic obstructive pulmonary disease, and pulmonary fibrosis. A key cellular mechanism that underlies the inflammatory responses in the airway is calcium signaling, which stimulates the production and release of chemokines, cytokines, and prostaglandins from the airway epithelium. In this review, we discuss the role of major Ca2+ signaling pathways found in airway epithelial cells and their contributions to airway inflammation, mucociliary clearance, and surfactant production. We highlight the importance of store-operated Ca2+ entry as a major signaling hub in these processes and discuss therapeutic implications of targeting Ca2+ signaling for airway inflammation.
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Affiliation(s)
- Amit Jairaman
- Department of Physiology and Biophysics, School of Medicine, University of California-Irvine (UCI) (A.J.)
| | - Murali Prakriya
- Department of Pharmacology, Northwestern University Feinberg School of Medicine, Chicago, IL (M.P.)
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Suk G, Kwon DH, Roers A, Abraham SN, Choi HW. Stabilization of activated mast cells by ORAI1 inhibitor suppresses peanut-induced anaphylaxis and acute diarrhea. Pharmacol Res 2023; 196:106887. [PMID: 37574155 DOI: 10.1016/j.phrs.2023.106887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 08/10/2023] [Accepted: 08/10/2023] [Indexed: 08/15/2023]
Abstract
Mast cell (MC) activation triggered by immunoglobulin E (IgE)-antigen crosslinking involves intracellular Ca2+ influx through the ORAI1 channel, which precedes granule exteriorization and de novo synthesis of mediators. Pharmacologically suppressing MCs via the inhibition of the ORAI1 Ca2+ channel may represent a potential strategy for preventing anaphylaxis. This study demonstrated that peanut-induced anaphylaxis in sensitized mice resulted in significant hypothermia and acute diarrhea. Utilizing the Mcpt5cre-DTA mouse model, we demonstrated that this anaphylactic response was mediated by IgE-antigen-induced MC activation. Prophylactic administration of MC suppressors was an effective means of preventing peanut-induced anaphylaxis. In addition, we observed the potent efficacy of an ORAI1 inhibitor in suppressing the FcεRI-mediated response of murine or human MCs, even when administered concurrently or post-allergen exposure. Mechanistically, the ORAI1 inhibitor was found to prevent the association of Synaptotagmin-2 with the SNARE complex. In an in vivo mouse model of peanut-induced anaphylaxis, the administration of the ORAI1 inhibitor after allergen challenge effectively suppressed allergic acute diarrhea and ameliorated anaphylaxis. Therefore, pharmacological intervention of ORAI1 channel inhibition in MCs represents a promising therapeutic avenue for the treatment of peanut-induced anaphylaxis and acute diarrhea in vivo.
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Affiliation(s)
- Gyeongseo Suk
- Division of Life Sciences, Korea University, Seoul 02841, South Korea
| | - Do Hoon Kwon
- Department of Biochemistry, Duke University Medical Center, Durham, NC 27710, USA
| | - Axel Roers
- Institute for Immunology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden 01069, Germany
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Hae Woong Choi
- Division of Life Sciences, Korea University, Seoul 02841, South Korea.
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Figueiredo IAD, Ferreira SRD, Fernandes JM, Silva BA, Vasconcelos LHC, Cavalcante FA. A review of the pathophysiology and the role of ion channels on bronchial asthma. Front Pharmacol 2023; 14:1236550. [PMID: 37841931 PMCID: PMC10568497 DOI: 10.3389/fphar.2023.1236550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 09/08/2023] [Indexed: 10/17/2023] Open
Abstract
Asthma is one of the main non-communicable chronic diseases and affects a huge portion of the population. It is a multifactorial disease, classified into several phenotypes, being the allergic the most frequent. The pathophysiological mechanism of asthma involves a Th2-type immune response, with high concentrations of allergen-specific immunoglobulin E, eosinophilia, hyperreactivity and airway remodeling. These mechanisms are orchestrated by intracellular signaling from effector cells, such as lymphocytes and eosinophils. Ion channels play a fundamental role in maintaining the inflammatory response on asthma. In particular, transient receptor potential (TRP), stock-operated Ca2+ channels (SOCs), Ca2+-activated K+ channels (IKCa and BKCa), calcium-activated chloride channel (TMEM16A), cystic fibrosis transmembrane conductance regulator (CFTR), piezo-type mechanosensitive ion channel component 1 (PIEZO1) and purinergic P2X receptor (P2X). The recognition of the participation of these channels in the pathological process of asthma is important, as they become pharmacological targets for the discovery of new drugs and/or pharmacological tools that effectively help the pharmacotherapeutic follow-up of this disease, as well as the more specific mechanisms involved in worsening asthma.
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Affiliation(s)
- Indyra Alencar Duarte Figueiredo
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| | - Sarah Rebeca Dantas Ferreira
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| | - Jayne Muniz Fernandes
- Graduação em Farmácia, Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| | - Bagnólia Araújo da Silva
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
- Departamento de Ciências Farmacêuticas, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| | - Luiz Henrique César Vasconcelos
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
- Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
| | - Fabiana de Andrade Cavalcante
- Programa de Pós-graduação em Produtos Naturais e Sintéticos Bioativos, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
- Departamento de Fisiologia e Patologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil
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Yao Y, Borkar NA, Zheng M, Wang S, Pabelick CM, Vogel ER, Prakash YS. Interactions between calcium regulatory pathways and mechanosensitive channels in airways. Expert Rev Respir Med 2023; 17:903-917. [PMID: 37905552 PMCID: PMC10872943 DOI: 10.1080/17476348.2023.2276732] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 10/25/2023] [Indexed: 11/02/2023]
Abstract
INTRODUCTION Asthma is a chronic lung disease influenced by environmental and inflammatory triggers and involving complex signaling pathways across resident airway cells such as epithelium, airway smooth muscle, fibroblasts, and immune cells. While our understanding of asthma pathophysiology is continually progressing, there is a growing realization that cellular microdomains play critical roles in mediating signaling relevant to asthma in the context of contractility and remodeling. Mechanosensitive pathways are increasingly recognized as important to microdomain signaling, with Piezo and transient receptor protein (TRP) channels at the plasma membrane considered important for converting mechanical stimuli into cellular behavior. Given their ion channel properties, particularly Ca2+ conduction, a question becomes whether and how mechanosensitive channels contribute to Ca2+ microdomains in airway cells relevant to asthma. AREAS COVERED Mechanosensitive TRP and Piezo channels regulate key Ca2+ regulatory proteins such as store operated calcium entry (SOCE) involving STIM and Orai channels, and sarcoendoplasmic (SR) mechanisms such as IP3 receptor channels (IP3Rs), and SR Ca2+ ATPase (SERCA) that are important in asthma pathophysiology including airway hyperreactivity and remodeling. EXPERT OPINION Physical and/or functional interactions between Ca2+ regulatory proteins and mechanosensitive channels such as TRP and Piezo can toward understanding asthma pathophysiology and identifying novel therapeutic approaches.
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Affiliation(s)
- Yang Yao
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi’an Medical University, Xi’an, Shaanxi, China
- Department of Anesthesiology, Mayo Clinic, Rochester, MN, USA
| | - Niyati A Borkar
- Department of Anesthesiology, Mayo Clinic, Rochester, MN, USA
| | - Mengning Zheng
- Department of Anesthesiology, Mayo Clinic, Rochester, MN, USA
- Department of Respiratory and Critical Care Medicine, Guizhou Province People’s Hospital, Guiyang, Guizhou, China
| | - Shengyu Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi’an Medical University, Xi’an, Shaanxi, China
| | - Christina M Pabelick
- Department of Anesthesiology, Mayo Clinic, Rochester, MN, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - Elizabeth R Vogel
- Department of Anesthesiology, Mayo Clinic, Rochester, MN, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
| | - YS Prakash
- Department of Anesthesiology, Mayo Clinic, Rochester, MN, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
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Zeng Z, Cheng M, Li M, Wang T, Wen F, Sanderson MJ, Sneyd J, Shen Y, Chen J. Inherent differences of small airway contraction and Ca 2+ oscillations in airway smooth muscle cells between BALB/c and C57BL/6 mouse strains. Front Cell Dev Biol 2023; 11:1202573. [PMID: 37346175 PMCID: PMC10279852 DOI: 10.3389/fcell.2023.1202573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 05/26/2023] [Indexed: 06/23/2023] Open
Abstract
BALB/c and C57BL/6 mouse strains are widely used as animal model in studies of respiratory diseases, such as asthma. Asthma is characterized by airway hyperresponsiveness, which is eventually resulted from the excessive airway smooth muscle (ASM) contraction mediated by Ca2+ oscillations in ASM cells. It is reported that BALB/c mice have inherently higher airway responsiveness, but show no different contractive response of tracheal ring as compared to C57BL/6 mice. However, whether the different airway responsiveness is due to the different extents of small airway contraction, and what's underlying mechanism remains unknown. Here, we assess agonist-induced small airway contraction and Ca2+ oscillations in ASM cells between BALB/c and C57BL/6 mice by using precision-cut lung slices (PCLS). We found that BALB/c mice showed an intrinsically stronger extent of small airway narrowing and faster Ca2+ oscillations in ASM cells in response to agonists. These differences were associated with a higher magnitude of Ca2+ influx via store-operated Ca2+ entry (SOCE), as a result of increased expression of SOCE components (STIM1, Orai1) in the ASM cells of small airway of BALB/c mice. An established mathematical model and experimental results suggested that the increased SOC current could result in increased agonist-induced Ca2+ oscillations. Therefore, the inherently higher SOC underlies the increased Ca2+ oscillation frequency in ASM cells and stronger small airway contraction in BALB/c mice, thus higher airway responsiveness in BALB/c than C57BL/6 mouse strain.
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Affiliation(s)
- Zijian Zeng
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy, Chengdu, Sichuan, China
| | - Mengxin Cheng
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy, Chengdu, Sichuan, China
| | - Meng Li
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy, Chengdu, Sichuan, China
| | - Tao Wang
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy, Chengdu, Sichuan, China
| | - Fuqiang Wen
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy, Chengdu, Sichuan, China
| | - Michael J. Sanderson
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, MA, United States
| | - James Sneyd
- Department of Mathematics, The University of Auckland, Auckland, New Zealand
| | - Yongchun Shen
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy, Chengdu, Sichuan, China
| | - Jun Chen
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University and Division of Pulmonary Diseases, State Key Laboratory of Biotherapy, Chengdu, Sichuan, China
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Benson JC, Trebak M. Too much of a good thing: The case of SOCE in cellular apoptosis. Cell Calcium 2023; 111:102716. [PMID: 36931194 PMCID: PMC10481469 DOI: 10.1016/j.ceca.2023.102716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 03/13/2023]
Abstract
Intracellular calcium (Ca2+) is an essential second messenger in eukaryotic cells regulating numerous cellular functions such as contraction, secretion, immunity, growth, and metabolism. Ca2+ signaling is also a key signal transducer in the intrinsic apoptosis pathway. The store-operated Ca2+ entry pathway (SOCE) is ubiquitously expressed in eukaryotic cells, and is the primary Ca2+ influx pathway in non-excitable cells. SOCE is mediated by the endoplasmic reticulum Ca2+ sensing STIM proteins, and the plasma membrane Ca2+-selective Orai channels. A growing number of studies have implicated SOCE in regulating cell death primarily via the intrinsic apoptotic pathway in a variety of tissues and in response to physiological stressors such as traumatic brain injury, ischemia reperfusion injury, sepsis, and alcohol toxicity. Notably, the literature points to excessive cytosolic Ca2+ influx through SOCE in vulnerable cells as a key factor tipping the balance towards cellular apoptosis. While the literature primarily addresses the functions of STIM1 and Orai1, STIM2, Orai2 and Orai3 are also emerging as potential regulators of cell death. Here, we review the functions of STIM and Orai proteins in regulating cell death and the implications of this regulation to human pathologies.
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Affiliation(s)
- J Cory Benson
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 1526, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 1526, USA; Department of Cellular and Molecular Physiology, Graduate Program, The Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA 17033, USA
| | - Mohamed Trebak
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 1526, USA; Vascular Medicine Institute, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 1526, USA; UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, 200 Lothrop Street, Pittsburgh, PA 1526, USA.
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11
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Janke EK, Chalmers SB, Roberts-Thomson SJ, Monteith GR. Intersection between calcium signalling and epithelial-mesenchymal plasticity in the context of cancer. Cell Calcium 2023; 112:102741. [PMID: 37060674 DOI: 10.1016/j.ceca.2023.102741] [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: 02/19/2023] [Revised: 04/03/2023] [Accepted: 04/06/2023] [Indexed: 04/17/2023]
Abstract
Epithelial-mesenchymal transition (EMT) is a form of cellular phenotypic plasticity and is considered a crucial step in the progression of many cancers. The calcium ion (Ca2+) acts as a ubiquitous second messenger and is implicated in many cellular processes, including cell death, migration, invasion and more recently EMT. Throughout this review, the complex interplay between Ca2+ signalling and EMT will be explored. An overview of the Ca2+ pathways that are remodelled as a consequence of EMT is provided and the role of Ca2+ signalling in regulating EMT and its significance is considered. Ca2+ signalling pathways may represent a therapeutic opportunity to regulate EMT. However, as will be described in this review, the complexity of these signalling pathways represents significant challenges that must be considered if Ca2+ signalling is to be manipulated with the aim of therapeutic intervention in cancer.
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Affiliation(s)
- Ellen K Janke
- School of Pharmacy, The University of Queensland, 20 Cornwall Street, Woolloongabba, Brisbane, Queensland, 4102, Australia
| | - Silke B Chalmers
- Department of Biomedicine, Aarhus University, Nordre Ringgade 1, Aarhus C, 8000, Denmark
| | - Sarah J Roberts-Thomson
- School of Pharmacy, The University of Queensland, 20 Cornwall Street, Woolloongabba, Brisbane, Queensland, 4102, Australia
| | - Gregory R Monteith
- School of Pharmacy, The University of Queensland, 20 Cornwall Street, Woolloongabba, Brisbane, Queensland, 4102, Australia.
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12
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Dwivedi R, Drumm BT, Griffin CS, Dudem S, Bradley E, Alkawadri T, Martin SL, Sergeant GP, Hollywood MA, Thornbury KD. Excitatory cholinergic responses in mouse primary bronchial smooth muscle require both Ca 2+ entry via l-type Ca 2+ channels and store operated Ca 2+ entry via Orai channels. Cell Calcium 2023; 112:102721. [PMID: 37023533 DOI: 10.1016/j.ceca.2023.102721] [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: 10/21/2022] [Revised: 03/10/2023] [Accepted: 03/23/2023] [Indexed: 04/08/2023]
Abstract
Malfunctions in airway smooth muscle Ca2+-signalling leads to airway hyperresponsiveness in asthma and chronic obstructive pulmonary disease. Ca2+-release from intracellular stores is important in mediating agonist-induced contractions, but the role of influx via l-type Ca2+ channels is controversial. We re-examined roles of the sarcoplasmic reticulum Ca2+ store, refilling of this store via store-operated Ca2+ entry (SOCE) and l-type Ca2+ channel pathways on carbachol (CCh, 0.1-10 µM)-induced contractions of mouse bronchial rings and intracellular Ca2+ signals of mouse bronchial myocytes. In tension experiments, the ryanodine receptor (RyR) blocker dantrolene (100 µM) reduced CCh-responses at all concentrations, with greater effects on sustained rather than initial components of contraction. 2-Aminoethoxydiphenyl borate (2-APB, 100 μM), in the presence of dantrolene, abolished CCh-responses, suggesting the sarcoplasmic reticulum Ca2+ store is essential for contraction. The SOCE blocker GSK-7975A (10 µM) reduced CCh-contractions, with greater effects at higher (e.g. 3 and 10 µM) CCh concentrations. Nifedipine (1 µM), abolished remaining contractions in GSK-7975A (10 µM). A similar pattern was observed on intracellular Ca2+-responses to 0.3 µM CCh, where GSK-7975A (10 µM) substantially reduced Ca2+ transients induced by CCh, and nifedipine (1 µM) abolished remaining responses. When nifedipine (1 µM) was applied alone it had less effect, reducing tension responses at all CCh concentrations by 25% - 50%, with greater effects at lower (e.g. 0.1 and 0.3 µM) CCh concentrations. When nifedipine (1 µM) was examined on the intracellular Ca2+-response to 0.3 µM CCh, it only modestly reduced Ca2+ signals, while GSK-7975A (10 µM) abolished remaining responses. In conclusion, Ca2+-influx from both SOCE and l-type Ca2+ channels contribute to excitatory cholinergic responses in mouse bronchi. The contribution of l-type Ca2+ channels was especially pronounced at lower doses of CCh, or when SOCE was blocked. This suggests l-type Ca2+ channels might be a potential target for bronchoconstriction under certain circumstances.
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Affiliation(s)
- R Dwivedi
- Smooth Muscle Research Centre, Dundalk Institute of Technology, Dublin Road, Dundalk, Co. Louth, A91 K584, Ireland
| | - B T Drumm
- Smooth Muscle Research Centre, Dundalk Institute of Technology, Dublin Road, Dundalk, Co. Louth, A91 K584, Ireland
| | - C S Griffin
- Smooth Muscle Research Centre, Dundalk Institute of Technology, Dublin Road, Dundalk, Co. Louth, A91 K584, Ireland
| | - S Dudem
- Smooth Muscle Research Centre, Dundalk Institute of Technology, Dublin Road, Dundalk, Co. Louth, A91 K584, Ireland
| | - E Bradley
- Smooth Muscle Research Centre, Dundalk Institute of Technology, Dublin Road, Dundalk, Co. Louth, A91 K584, Ireland
| | - T Alkawadri
- Smooth Muscle Research Centre, Dundalk Institute of Technology, Dublin Road, Dundalk, Co. Louth, A91 K584, Ireland
| | - S L Martin
- School of Pharmacy, Queen's University Belfast, Belfast, United Kingdom
| | - G P Sergeant
- Smooth Muscle Research Centre, Dundalk Institute of Technology, Dublin Road, Dundalk, Co. Louth, A91 K584, Ireland
| | - M A Hollywood
- Smooth Muscle Research Centre, Dundalk Institute of Technology, Dublin Road, Dundalk, Co. Louth, A91 K584, Ireland
| | - K D Thornbury
- Smooth Muscle Research Centre, Dundalk Institute of Technology, Dublin Road, Dundalk, Co. Louth, A91 K584, Ireland.
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13
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Airway Smooth Muscle Regulated by Oxidative Stress in COPD. Antioxidants (Basel) 2023; 12:antiox12010142. [PMID: 36671004 PMCID: PMC9854973 DOI: 10.3390/antiox12010142] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 12/29/2022] [Indexed: 01/11/2023] Open
Abstract
Since COPD is a heterogeneous disease, a specific anti-inflammatory therapy for this disease has not been established yet. Oxidative stress is recognized as a major predisposing factor to COPD related inflammatory responses, resulting in pathological features of small airway fibrosis and emphysema. However, little is known about effects of oxidative stress on airway smooth muscle. Cigarette smoke increases intracellular Ca2+ concentration and enhances response to muscarinic agonists in human airway smooth muscle. Cigarette smoke also enhances proliferation of these cells with altered mitochondrial protein. Hydrogen peroxide and 8-isoprostans are increased in the exhaled breath condensate in COPD. These endogenous oxidants cause contraction of tracheal smooth muscle with Ca2+ dynamics through Ca2+ channels and with Ca2+ sensitization through Rho-kinase. TNF-α and growth factors potentiate proliferation of these cells by synthesis of ROS. Oxidative stress can alter the function of airway smooth muscle through Ca2+ signaling. These phenotype changes are associated with manifestations (dyspnea, wheezing) and pathophysiology (airflow limitation, airway remodeling, airway hyperresponsiveness). Therefore, airway smooth muscle is a therapeutic target against COPD; oxidative stress should be included in treatable traits for COPD to advance precision medicine. Research into Ca2+ signaling related to ROS may contribute to the development of a novel agent for COPD.
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14
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Xiong Y, Luo Y, Yuwen T, Li J, Chen R, Shi F. The Regulatory Role of miR-107-Cdk6-Rb Pathway in Airway Smooth Muscle Cells in Asthma. J Asthma Allergy 2023; 16:433-445. [PMID: 37102069 PMCID: PMC10124628 DOI: 10.2147/jaa.s405457] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 04/03/2023] [Indexed: 04/28/2023] Open
Abstract
Purpose Airway remodeling is a significant pathological change of asthma. This study aimed to detect differentially expressed microRNAs in the serum of asthma patients and airway smooth muscle cells (ASMCs) of asthmatic mice, exploring their role in the airway remodeling of asthma. Methods The differentially expressed microRNAs in the serum of mild and moderate-severe asthma patients compared to healthy subjects were revealed using the "limma" package. Gene Ontology (GO) analysis was used to annotate the functions of microRNA target genes. The relative expressions of miR-107 (miR-107-3p in mice sharing the same sequence) in the primary airway smooth muscle cells (ASMCs) of the asthma mice model were tested by RT-qPCR. Cyclin-dependent kinases 6 (Cdk6), a target gene of miR-107, was predicted by algorithms and validated by dual-luciferase reporter assay and Western blot. The roles of miR-107, Cdk6, and protein Retinoblastoma (Rb) in ASMCs were examined by transwell assay and EDU KIT in vitro. Results The expression of miR-107 was down-regulated in both mild and moderate-severe asthma patients. Intriguingly, the level of miR-107 was also decreased in ASMCs of the asthma mice model. Up-regulating miR-107 suppressed ASMCs' proliferation by targeting Cdk6 and the phosphorylation level of Rb. Increasing the expression of Cdk6 or suppressing Rb activity abrogated the proliferation inhibition effect of ASMCs induced by miR-107. In addition, miR-107 also inhibits ASMC migration by targeting Cdk6. Conclusion The expression of miR-107 is down-regulated in serums of asthma patients and ASMCs of asthmatic mice. It plays a critical role in regulating the proliferation and migration of ASMCs via targeting Cdk6.
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Affiliation(s)
- Yi Xiong
- Emergency Department, Shenzhen People’s Hospital, Shenzhen, Guangdong Province, People’s Republic of China
- Biomedical Research Institute, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, People’s Republic of China
| | - Yani Luo
- Biomedical Research Institute, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, People’s Republic of China
| | - Ting Yuwen
- Biomedical Research Institute, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, People’s Republic of China
| | - Jiana Li
- Biomedical Research Institute, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong Province, People’s Republic of China
| | - Rongchang Chen
- Key Laboratory of Shenzhen Respiratory Diseases, Institute of Shenzhen Respiratory Diseases, Shenzhen People’s Hospital, Shenzhen, Guangdong Province, People’s Republic of China
- Correspondence: Rongchang Chen, Email
| | - Fei Shi
- Emergency Department, Shenzhen People’s Hospital, Shenzhen, Guangdong Province, People’s Republic of China
- Fei Shi, Email
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15
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Goriounova AS, Gilmore RC, Wrennall JA, Tarran R. Super resolution microscopy analysis reveals increased Orai1 activity in asthma and cystic fibrosis lungs. J Cyst Fibros 2023; 22:161-171. [PMID: 35961837 PMCID: PMC9982747 DOI: 10.1016/j.jcf.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 11/28/2022]
Abstract
QUESTION In diseases such as asthma and cystic fibrosis (CF), the immune response is dysregulated and the lung is chronically inflamed. Orai1 activation is required for the initiation and persistence of inflammation. However, Orai1 expression in the lung is poorly understood. We therefore tested the hypothesis that Orai1 expression was upregulated in asthmatic and CF lungs. MATERIALS AND METHODS We used LungMAP to analyze single-cell RNAseq data of Orai1 and stromal interaction molecule 1 (STIM1) expression in normal human lungs. We then performed RNAscope analysis and immunostaining on lung sections from normal, asthma, and CF donors. We imaged sections by confocal and super resolution microscopy, and analyzed Orai1 and STIM1 expression in different pulmonary cell types. RESULTS Orai1 was broadly-expressed, but expression was greatest in immune cells. At mRNA and protein levels, there were no consistent trends in expression levels between the three phenotypes. Orai1 must interact with STIM1 in order to activate and conduct Ca2+. We therefore used STIM1/Orai1 co-localization as a marker of Orai1 activity. Using this approach, we found significantly increased co-localization between these proteins in epithelia, interstitial and luminal immune cells, but not alveoli, from asthma and CF lungs. Orai1 also aggregates as part of its activation process. Using super resolution microscopy, we also found significantly increased Orai1 aggregation in immune cells from asthmatic and CF lungs. CONCLUSION We found evidence that Orai1 was more active in asthma and CF than normal lungs. These data suggest that Orai1 is a relevant target for reducing pulmonary inflammation.
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Affiliation(s)
| | | | - Joe A Wrennall
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, NC, 27599, USA
| | - Robert Tarran
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, NC, 27599, USA.
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16
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Khalfaoui L, Pabelick CM. Airway smooth muscle in contractility and remodeling of asthma: potential drug target mechanisms. Expert Opin Ther Targets 2023; 27:19-29. [PMID: 36744401 DOI: 10.1080/14728222.2023.2177533] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Asthma is characterized by enhanced airway contractility and remodeling where airway smooth muscle (ASM) plays a key role, modulated by inflammation. Understanding the mechanisms by which ASM contributes to these features of asthma is essential for the development of novel asthma therapies. AREAS COVERED Inflammation in asthma contributes to a multitude of changes within ASM including enhanced airway contractility, proliferation, and fibrosis. Altered intracellular calcium ([Ca2+]i) regulation or Ca2+ sensitization contributes to airway hyperreactivity. Increased airway wall thickness from ASM proliferation and fibrosis contributes to structural changes seen with asthma. EXPERT OPINION ASM plays a significant role in multiple features of asthma. Increased ASM contractility contributes to hyperresponsiveness, while altered ASM proliferation and extracellular matrix production promote airway remodeling both influenced by inflammation of asthma and conversely even influencing the local inflammatory milieu. While standard therapies such as corticosteroids or biologics target inflammation, cytokines, or their receptors to alleviate asthma symptoms, these approaches do not address the underlying contribution of ASM to hyperresponsiveness and particularly remodeling. Therefore, novel therapies for asthma need to target abnormal contractility mechanisms in ASM and/or the contribution of ASM to remodeling, particularly in asthmatics resistant to current therapies.
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Affiliation(s)
- Latifa Khalfaoui
- Departments of Anesthesiology & Perioperative Medicine Mayo Clinic, Rochester, MN, USA
| | - Christina M Pabelick
- Departments of Anesthesiology & Perioperative Medicine Mayo Clinic, Rochester, MN, USA.,Department of Physiology & Biomedical Engineering, Mayo Clinic, Rochester, MN, USA
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17
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Xiang LL, Wan QQ, Wang YM, He SJ, Xu WJ, Ding M, Zhang JJ, Sun YL, Dong X, Zhou Y, Cui YB, Gao YD. IL-13 Regulates Orai1 Expression in Human Bronchial Smooth Muscle Cells and Airway Remodeling in Asthma Mice Model via LncRNA H19. J Asthma Allergy 2022; 15:1245-1261. [PMID: 36101840 PMCID: PMC9464454 DOI: 10.2147/jaa.s360381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 08/20/2022] [Indexed: 11/23/2022] Open
Abstract
Background Increased proliferation and hypertrophy of airway smooth muscle cells (ASMCs) contribute substantially to airway remodeling in asthma. Interleukin (IL)-13 regulates ASMC proliferation by increasing Orai1 expression, the pore-forming subunit of store-operated Ca2+ entry (SOCE). The underlying mechanisms of this effect are not fully understood. Methods Bioinformatic analysis identified an interaction between microRNA 93-5p (miR-93-5p) and long non-coding RNA (lncRNA) H19, and between miR-93-5p and Orai1. RNA interference was used to investigate H19 knockdown on IL-13-induced proliferation and migration of in vitro cultured human bronchial smooth muscle cells (hBSMCs). Functional relevance of H19 in airway inflammation and airway remodeling was investigated in murine models of acute and chronic asthma. Results IL-13 concentration-dependently increased the expression of H19 and Orai1 and decreased the expression of miR-93-5p in hBSMCs. H19 knockdown partly reversed the effects of IL-13 on the expression of miR-93-5p and Orai1 and attenuated the proliferation and migration of hBSMCs promoted by IL-13. IL-13-promoted expression of Orai1 was attenuated by miR-93-5p mimic and increased by miR-93-5p inhibitor. IL-13-promoted proliferation of hBSMCs was increased by miR-93-5p inhibitor but not affected by miR-93-5p mimic, whereas IL-13-promoted migration of hBSMCs was increased by miR-93-5p inhibitor and attenuated by miR-93-5p mimic. The inhibiting effect of H19 knockdown on IL-13-induced Orai1 expression and the proliferation and migration of hBSMCs was counteracted by miR-93-5p inhibitor but only marginally or not impacted by miR-93-5p mimic. The expression of H19 and Orai1 was higher in the lungs of asthmatic mice than in control mice. In asthmatic mice, H19 siRNA reduced Orai1 expression, inflammatory cell infiltration, goblet cell hyperplasia, collagen deposition and smooth muscle mass in the lungs. Conclusion H19 may mediate the effects of IL-13 on Orai1 expression by inhibition of miR-93-5p in hBSMCs. H19 may be a therapeutic target for airway inflammation and airway remodeling.
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Affiliation(s)
- Lin-Li Xiang
- Department of Allergology, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China
| | - Qian-Qian Wan
- Department of Rheumatology, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China
| | - Yi-Min Wang
- Department of Allergology, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China
| | - Shao-Jun He
- Department of Respiratory and Critical Care Medicine Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China
| | - Wen-Juan Xu
- Department of Respiratory and Critical Care Medicine Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China
| | - Mei Ding
- Department of Allergology, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China.,Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University, Wuhan, People's Republic of China
| | - Jin-Jin Zhang
- Department of Allergology, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China.,Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University, Wuhan, People's Republic of China
| | - Yuan-Li Sun
- Department of Allergology, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China.,Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University, Wuhan, People's Republic of China
| | - Xiang Dong
- Department of Allergology, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China.,Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University, Wuhan, People's Republic of China
| | - Ying Zhou
- Department of Pediatrics Laboratory, The Affiliated Wuxi Children's Hospital of Nanjing Medical University, Wuxi, People's Republic of China
| | - Yu-Bao Cui
- Department of Clinical Laboratory, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, People's Republic of China
| | - Ya-Dong Gao
- Department of Allergology, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China.,Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University, Wuhan, People's Republic of China
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18
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The airway smooth muscle sodium/calcium exchanger NCLX is critical for airway remodeling and hyperresponsiveness in asthma. J Biol Chem 2022; 298:102259. [PMID: 35841929 PMCID: PMC9372629 DOI: 10.1016/j.jbc.2022.102259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 06/27/2022] [Accepted: 06/30/2022] [Indexed: 12/13/2022] Open
Abstract
The structural changes of airway smooth muscle (ASM) that characterize airway remodeling (AR) are crucial to the pathogenesis of asthma. During AR, ASM cells dedifferentiate from a quiescent to a proliferative, migratory, and secretory phenotype. Calcium (Ca2+) is a ubiquitous second messenger that regulates many cellular processes, including proliferation, migration, contraction, and metabolism. Furthermore, mitochondria have emerged as major Ca2+ signaling organelles that buffer Ca2+ through uptake by the mitochondrial Ca2+ uniporter and extrude it through the Na+/Ca2+ exchanger (NCLX/Slc8b1). Here, we show using mitochondrial Ca2+-sensitive dyes that NCLX only partially contributes to mitochondrial Ca2+ extrusion in ASM cells. Yet, NCLX is necessary for ASM cell proliferation and migration. Through cellular imaging, RNA-Seq, and biochemical assays, we demonstrate that NCLX regulates these processes by preventing mitochondrial Ca2+ overload and supporting store-operated Ca2+ entry, activation of Ca2+/calmodulin-dependent kinase II, and transcriptional and metabolic reprogramming. Using small animal respiratory mechanic measurements and immunohistochemistry, we show that smooth muscle-specific NCLX KO mice are protected against AR, fibrosis, and hyperresponsiveness in an experimental model of asthma. Our findings support NCLX as a potential therapeutic target in the treatment of asthma.
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19
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Thakore P, Earley S. STIM1 is the key that unlocks airway smooth muscle remodeling and hyperresponsiveness during asthma. Cell Calcium 2022; 104:102589. [PMID: 35430405 PMCID: PMC10577677 DOI: 10.1016/j.ceca.2022.102589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 04/03/2022] [Indexed: 12/28/2022]
Abstract
Airway smooth muscle remodeling and hyperresponsiveness are critical determinants of asthma severity, but the precise mechanisms regulating these disease processes remain elusive. In their latest study published in PNAS, Trebak and colleagues demonstrate that STIM1 (stromal-interacting molecule 1) expression is upregulated in airway smooth muscle cells during asthma and facilitates Ca2+ influx to drive airway remodeling and hyperresponsiveness.
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Affiliation(s)
- Pratish Thakore
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno School of Medicine, Reno, NV 8957-0318, United States of America
| | - Scott Earley
- Department of Pharmacology, Center for Molecular and Cellular Signaling in the Cardiovascular System, University of Nevada, Reno School of Medicine, Reno, NV 8957-0318, United States of America.
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20
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Abstract
Store-operated Ca2+ entry (SOCE) is a ubiquitous Ca2+ signaling pathway that is evolutionarily conserved across eukaryotes. SOCE is triggered physiologically when the endoplasmic reticulum (ER) Ca2+ stores are emptied through activation of inositol 1,4,5-trisphosphate receptors. SOCE is mediated by the Ca2+ release-activated Ca2+ (CRAC) channels, which are highly Ca2+ selective. Upon store depletion, the ER Ca2+-sensing STIM proteins aggregate and gain extended conformations spanning the ER-plasma membrane junctional space to bind and activate Orai, the pore-forming proteins of hexameric CRAC channels. In recent years, studies on STIM and Orai tissue-specific knockout mice and gain- and loss-of-function mutations in humans have shed light on the physiological functions of SOCE in various tissues. Here, we describe recent findings on the composition of native CRAC channels and their physiological functions in immune, muscle, secretory, and neuronal systems to draw lessons from transgenic mice and human diseases caused by altered CRAC channel activity.
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Affiliation(s)
- Scott M Emrich
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA;
| | - Ryan E Yoast
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA;
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA;
- Department of Pharmacology and Chemical Biology and Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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21
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STIM1 is a core trigger of airway smooth muscle remodeling and hyperresponsiveness in asthma. Proc Natl Acad Sci U S A 2022; 119:2114557118. [PMID: 34949717 PMCID: PMC8740694 DOI: 10.1073/pnas.2114557118] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2021] [Indexed: 12/20/2022] Open
Abstract
Stromal-interacting molecule 1 (STIM1) proteins are essential for the function of store-operated Ca2+ entry (SOCE). Using transcriptomics, metabolomics, imaging, and inducible smooth muscle–specific STIM1 knockout mice expressing genetically encoded Ca2+ sensors, we reveal a crucial function of STIM1 in airway remodeling and airway hyperresponsiveness in asthma. STIM1-mediated Ca2+ oscillations in airway smooth muscle (ASM) cells are critical for ASM remodeling through metabolic and transcriptional reprogramming and cytokine secretion, including IL-6. These effects are driven by Ca2+-dependent activation of the transcription factor isoform NFAT4 specifically in ASM. Our data provide evidence that ASM STIM1 and SOCE are central triggers of asthma manifestations and advocate for the future use of STIM1 as a molecular target in asthma therapy. Airway remodeling and airway hyperresponsiveness are central drivers of asthma severity. Airway remodeling is a structural change involving the dedifferentiation of airway smooth muscle (ASM) cells from a quiescent to a proliferative and secretory phenotype. Here, we show up-regulation of the endoplasmic reticulum Ca2+ sensor stromal-interacting molecule 1 (STIM1) in ASM of asthmatic mice. STIM1 is required for metabolic and transcriptional reprogramming that supports airway remodeling, including ASM proliferation, migration, secretion of cytokines and extracellular matrix, enhanced mitochondrial mass, and increased oxidative phosphorylation and glycolytic flux. Mechanistically, STIM1-mediated Ca2+ influx is critical for the activation of nuclear factor of activated T cells 4 and subsequent interleukin-6 secretion and transcription of pro-remodeling transcription factors, growth factors, surface receptors, and asthma-associated proteins. STIM1 drives airway hyperresponsiveness in asthmatic mice through enhanced frequency and amplitude of ASM cytosolic Ca2+ oscillations. Our data advocates for ASM STIM1 as a target for asthma therapy.
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22
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Xu J, Meng Y, Jia M, Jiang J, Yang Y, Ou Y, Wu Y, Yan X, Huang M, Adcock IM, Yao X. Epithelial expression and role of secreted STC1 on asthma airway hyperresponsiveness through calcium channel modulation. Allergy 2021; 76:2475-2487. [PMID: 33378582 DOI: 10.1111/all.14727] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 11/16/2020] [Accepted: 12/02/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Asthma is characterized by airway hyperresponsiveness (AHR), inflammation, and airway remodeling. Airway hyperresponsiveness results from enhanced airway smooth muscle (ASM) contraction potentially under the control of an epithelium-derived relaxing factor (EpDRF). However, relatively rare is known about EpDRF. We aimed to elucidate the role of epithelium-derived stanniocalcin-1 (STC1) on AHR and ASM contraction. METHODS Stanniocalcin-1 levels in the serum of asthmatic patients and healthy volunteers and in bronchoalveolar lavage fluid (BALF) from ovalbumin (OVA)-challenged mice were measured by ELISA. The effects of exogenous STC1 on AHR and on inflammation were examined in mice. IL-13 modulation of STC1 mRNA and protein levels was studied in human bronchial epithelial cell lines (16HBE). The function of STC1 on Ca2+ influx and ASM contraction was examined ex vivo. RESULTS Serum STC1 was decreased in asthma (n = 93) compared with healthy volunteers (1071 ± 30.4 vs 1414 ± 75.1 pg/ml, p < 0.0001, n = 23) and correlated with asthma control (p = 0.0270), lung function (FEV1, p = 0.0130), and serum IL-13 levels (p = 0.0009). Treatment of ten asthmatic subjects with inhaled corticosteroids/long-acting beta2-agonists (ICS/LABA) for 1 year enhanced STC1 expression which correlated with improved asthma control (p = 0.022). STC1 was mainly expressed in bronchial epithelium and intranasal administration of recombinant human STC1 (rhSTC1) reduced AHR and inflammation in mice. IL-13 suppressed STC1 release from 16HBE, whereas rhSTC1 blocked store-operated Ca2+ entry (SOCE) by suppressing stromal interaction molecule 1 (STIM1) and further inhibited ASM cell contractility by suppressing Ca2+ -dependent myosin light chain (MLC) phosphorylation. CONCLUSION Our data indicate that STC1 deficiency in asthmatic airways promotes STIM1 hyperactivity, enhanced ASM contraction, and AHR. STC1 may be a candidate EpDRF.
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Affiliation(s)
- Jiayan Xu
- Department of Respiratory & Critical Care Medicine The First Affiliated Hospital of Nanjing Medical University Nanjing China
- Department of Respiratory & Critical Care Medicine Northern Jiangsu People's Hospital Yangzhou China
| | - Yaqi Meng
- Department of Respiratory & Critical Care Medicine The First Affiliated Hospital of Nanjing Medical University Nanjing China
| | - Man Jia
- Department of Respiratory & Critical Care Medicine The First Affiliated Hospital of Nanjing Medical University Nanjing China
| | - Jie Jiang
- Department of Respiratory & Critical Care Medicine Huai'an First People's Hospital Huai'an China
| | - Yi Yang
- Department of Respiratory & Critical Care Medicine The First Affiliated Hospital of Nanjing Medical University Nanjing China
| | - Yingwei Ou
- Department of Respiratory & Critical Care Medicine The First Affiliated Hospital of Nanjing Medical University Nanjing China
| | - Yunhui Wu
- Department of Respiratory & Critical Care Medicine The First Affiliated Hospital of Nanjing Medical University Nanjing China
| | - Xiaoyi Yan
- Department of Respiratory & Critical Care Medicine Nanjing Jiangning People's Hospital Nanjing China
| | - Mao Huang
- Department of Respiratory & Critical Care Medicine The First Affiliated Hospital of Nanjing Medical University Nanjing China
| | - Ian M. Adcock
- Airway Disease Section Faculty of Medicine National Heart and Lung Institute Imperial College London London UK
| | - Xin Yao
- Department of Respiratory & Critical Care Medicine The First Affiliated Hospital of Nanjing Medical University Nanjing China
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Tiffner A, Derler I. Isoform-Specific Properties of Orai Homologues in Activation, Downstream Signaling, Physiology and Pathophysiology. Int J Mol Sci 2021; 22:8020. [PMID: 34360783 PMCID: PMC8347056 DOI: 10.3390/ijms22158020] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 11/21/2022] Open
Abstract
Ca2+ ion channels are critical in a variety of physiological events, including cell growth, differentiation, gene transcription and apoptosis. One such essential entry pathway for calcium into the cell is the Ca2+ release-activated Ca2+ (CRAC) channel. It consists of the Ca2+ sensing protein, stromal interaction molecule 1 (STIM1) located in the endoplasmic reticulum (ER) and a Ca2+ ion channel Orai in the plasma membrane. The Orai channel family includes three homologues Orai1, Orai2 and Orai3. While Orai1 is the "classical" Ca2+ ion channel within the CRAC channel complex and plays a universal role in the human body, there is increasing evidence that Orai2 and Orai3 are important in specific physiological and pathophysiological processes. This makes them an attractive target in drug discovery, but requires a detailed understanding of the three Orai channels and, in particular, their differences. Orai channel activation is initiated via Ca2+ store depletion, which is sensed by STIM1 proteins, and induces their conformational change and oligomerization. Upon STIM1 coupling, Orai channels activate to allow Ca2+ permeation into the cell. While this activation mechanism is comparable among the isoforms, they differ by a number of functional and structural properties due to non-conserved regions in their sequences. In this review, we summarize the knowledge as well as open questions in our current understanding of the three isoforms in terms of their structure/function relationship, downstream signaling and physiology as well as pathophysiology.
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Affiliation(s)
| | - Isabella Derler
- Institute of Biophysics, JKU Life Science Center, Johannes Kepler University Linz, A-4020 Linz, Austria;
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Stretch-activated calcium mobilization in airway smooth muscle and pathophysiology of asthma. CURRENT OPINION IN PHYSIOLOGY 2021. [DOI: 10.1016/j.cophys.2021.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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25
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Pham AK, Miller M, Rosenthal P, Das S, Weng N, Jang S, Kurten RC, Badrani J, Doherty TA, Oliver B, Broide DH. ORMDL3 expression in ASM regulates hypertrophy, hyperplasia via TPM1 and TPM4, and contractility. JCI Insight 2021; 6:136911. [PMID: 33661765 PMCID: PMC8119187 DOI: 10.1172/jci.insight.136911] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 02/26/2021] [Indexed: 12/21/2022] Open
Abstract
ORM1-like 3 (ORMDL3) has strong genetic linkage to childhood onset asthma. To determine whether ORMDL3 selective expression in airway smooth muscle (ASM) influences ASM function, we used Cre-loxP techniques to generate transgenic mice (hORMDL3Myh11eGFP-cre), which express human ORMDL3 selectively in smooth muscle cells. In vitro studies of ASM cells isolated from the bronchi of hORMDL3Myh11eGFP-cre mice demonstrated that they developed hypertrophy (quantitated by FACS and image analysis), developed hyperplasia (assessed by BrdU incorporation), and expressed increased levels of tropomysin proteins TPM1 and TPM4. siRNA knockdown of TPM1 or TPM4 demonstrated their importance to ORMDL3-mediated ASM proliferation but not hypertrophy. In addition, ASM derived from hORMDL3Myh11eGFP-cre mice had increased contractility to histamine in vitro, which was associated with increased levels of intracellular Ca2+; increased cell surface membrane Orai1 Ca2+ channels, which mediate influx of Ca2+ into the cytoplasm; and increased expression of ASM contractile genes sarco/endoplasmic reticulum Ca2+ ATPase 2b and smooth muscle 22. In vivo studies of hORMDL3Myh11eGFP-cre mice demonstrated that they had a spontaneous increase in ASM and airway hyperreactivity (AHR). ORMDL3 expression in ASM thus induces changes in ASM (hypertrophy, hyperplasia, increased contractility), which may explain the contribution of ORMDL3 to the development of AHR in childhood onset asthma, which is highly linked to ORMDL3 on chromosome 17q12-21.
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Affiliation(s)
- Alexa K. Pham
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Marina Miller
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Peter Rosenthal
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Sudipta Das
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Ning Weng
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Sunghoon Jang
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Richard C. Kurten
- Department of Pediatrics, Arkansas Children’s Research Institute, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Jana Badrani
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Taylor A. Doherty
- Department of Medicine, University of California San Diego, La Jolla, California, USA
- Veterans Affairs San Diego Health Care System, La Jolla, California, USA
| | - Brian Oliver
- School of Life Sciences, University of Technology Sydney, Sydney, Australia
| | - David H. Broide
- Department of Medicine, University of California San Diego, La Jolla, California, USA
- School of Life Sciences, University of Technology Sydney, Sydney, Australia
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Role of Airway Smooth Muscle in Inflammation Related to Asthma and COPD. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1303:139-172. [PMID: 33788192 DOI: 10.1007/978-3-030-63046-1_9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Airway smooth muscle contributes to both contractility and inflammation in the pathophysiology of asthma and COPD. Airway smooth muscle cells can change the degree of a variety of functions, including contraction, proliferation, migration, and the secretion of inflammatory mediators (phenotype plasticity). Airflow limitation, airway hyperresponsiveness, β2-adrenergic desensitization, and airway remodeling, which are fundamental characteristic features of these diseases, are caused by phenotype changes in airway smooth muscle cells. Alterations between contractile and hyper-contractile, synthetic/proliferative phenotypes result from Ca2+ dynamics and Ca2+ sensitization. Modulation of Ca2+ dynamics through the large-conductance Ca2+-activated K+ channel/L-type voltage-dependent Ca2+ channel linkage and of Ca2+ sensitization through the RhoA/Rho-kinase pathway contributes not only to alterations in the contractile phenotype involved in airflow limitation, airway hyperresponsiveness, and β2-adrenergic desensitization but also to alteration of the synthetic/proliferative phenotype involved in airway remodeling. These Ca2+ signal pathways are also associated with synergistic effects due to allosteric modulation between β2-adrenergic agonists and muscarinic antagonists. Therefore, airway smooth muscle may be a target tissue in the therapy for these diseases. Moreover, the phenotype changing in airway smooth muscle cells with focuses on Ca2+ signaling may provide novel strategies for research and development of effective remedies against both bronchoconstriction and inflammation.
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Li J, He Q, Wang L, Chen D, Qiu C, Xu P, Lu Y, Zeng Y, Chen R. SET knockdown attenuated phenotype modulation and calcium channel associated markers of airway smooth muscle cells in asthmatic mice. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:657. [PMID: 33987355 PMCID: PMC8106076 DOI: 10.21037/atm-21-573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Dysfunctional phenotype modulation and calcium channels in airway smooth muscle cells (ASMCs) are important characteristics of airway remodeling in chronic asthma. However, the mechanisms underlying these pathological processes remain unclear. SET (I2PP2A, inhibitor-2 of protein phosphatase 2A) has many significant functions and is involved in various physiological and pathological processes. This study aimed to determine the function of SET in chronic asthma. Methods BALB/c mice were sensitized by ovalbumin injection and repeated inhalation of ovalbumin. The Penh value was measured using the Buxco whole body plethysmography system. A short hairpin RNA of the SET gene was designed and transfected into ASMCs derived from asthmatic mice. Flow cytometry of Annexin-V/propidium iodide staining was used for evaluating cell apoptosis. Western blot was adopted to measure the expression levels of ASMCs phenotype modulation markers and calcium channel-associated proteins. Results The results showed that shRNA targeting SET significantly decreased the expression of SET, and enhanced the apoptosis of ASMCs. SET knockdown promoted the expression of contractile phenotype markers such as α-SMA (alpha smooth muscle Actin), SM-MHC (smooth muscle Myosin heavy chain), and calponin, and inhibited the expression of synthetic phenotype markers including vimentin and CD44. The expression of the calcium channel-related proteins STIM1 (Stromal interaction molecule 1) and Orai1 were also inhibited after SET knockdown. Conclusions These data demonstrated that SET participated in the development of airway dysfunction in asthma, suggesting that the silencing of SET may be a new therapeutic target for the treatment of asthma patients.
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Affiliation(s)
- Jie Li
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, China
| | - Qi He
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, China
| | - Lingwei Wang
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, China
| | - Dandan Chen
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, China
| | - Chen Qiu
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, China
| | - Peng Xu
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, China
| | - Yongzhen Lu
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, China
| | - Yuwei Zeng
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, China
| | - Rongchang Chen
- Key Laboratory of Shenzhen Respiratory Disease, Shenzhen Institute of Respiratory Disease, Shenzhen People's Hospital (The First Affiliated Hospital of Southern University of Science and Technology, The Second Clinical Medical College of Jinan University), Shenzhen, China
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28
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Sagar S, Kapoor H, Chaudhary N, Roy SS. Cellular and mitochondrial calcium communication in obstructive lung disorders. Mitochondrion 2021; 58:184-199. [PMID: 33766748 DOI: 10.1016/j.mito.2021.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 03/03/2021] [Accepted: 03/15/2021] [Indexed: 12/14/2022]
Abstract
Calcium (Ca2+) signalling is well known to dictate cellular functioning and fate. In recent years, the accumulation of Ca2+ in the mitochondria has emerged as an important factor in Chronic Respiratory Diseases (CRD) such as Asthma and Chronic Obstructive Pulmonary Disease (COPD). Various reports underline an aberrant increase in the intracellular Ca2+, leading to mitochondrial ROS generation, and further activation of the apoptotic pathway in these diseases. Mitochondria contribute to Ca2+ buffering which in turn regulates mitochondrial metabolism and ATP production. Disruption of this Ca2+ balance leads to impaired cellular processes like apoptosis or necrosis and thus contributes to the pathophysiology of airway diseases. This review highlights the key role of cytoplasmic and mitochondrial Ca2+ signalling in regulating CRD, such as asthma and COPD. A better understanding of the dysregulation of mitochondrial Ca2+ homeostasis in these diseases could provide cues for the development of advanced therapeutic interventions in these diseases.
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Affiliation(s)
- Shakti Sagar
- CSIR-Institute of Genomics & Integrative Biology, New Delhi, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Himanshi Kapoor
- CSIR-Institute of Genomics & Integrative Biology, New Delhi, India
| | - Nisha Chaudhary
- Multidisciplinary Center for Advanced Research and Studies, Jamia Millia Islamia, New Delhi, India
| | - Soumya Sinha Roy
- CSIR-Institute of Genomics & Integrative Biology, New Delhi, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201002, India.
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Šutovská M, Kocmálová M, Kazimierová I, Forsberg CIN, Jošková M, Adamkov M, Fraňová S. Effects of Inhalation of STIM-Orai Antagonist SKF 96365 on Ovalbumin-Induced Airway Remodeling in Guinea Pigs. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1335:87-101. [PMID: 33742420 DOI: 10.1007/5584_2021_633] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Airway remodeling (AR) consists of wall thickening and hyperreactivity. STIM (stromal interaction molecule) and Orai protein pathways mediate extracellular Ca2+ signals involved in AR. This study aims to define the effects on AR of the STIM-Orai antagonist SKF 96365 given by inhalation in three increasing doses in ovalbumin-induced AR. In the control group, the antiasthmatic budesonide and salbutamol were given in the same model. The airway structure was evaluated by histological and immunohistochemistry and reactivity by specific airway resistance, contraction strength of isolated airway smooth muscles, and mucociliary clearance expressed by ciliary beating frequency. The immuno-biochemical markers of chronic inflammation were evaluated by BioPlex and ELISA assays. The AR was mediated by inflammatory cytokines and growth factors. The findings show significant anti-remodeling effects of SKF 96365, which were associated with a decrease in airway hyperreactivity. The anti-remodeling effect of SKF 96365 was mediated via the suppression of IL-4, IL-5, and IL-13 synthesis, and IL-12-INF-γ-TGF-β pathway. The budesonide-related AR suppression had to do with a decrease in proinflammatory cytokines and an increase in the anti-inflammatory IL-10, with negligible influence on growth factors synthesis and mucous glands activity.
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Affiliation(s)
- Martina Šutovská
- Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, Mala Hora, Martin, Slovakia
| | - Michaela Kocmálová
- Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, Mala Hora, Martin, Slovakia. .,Martin's Biomedical Center (BioMed), Jessenius Faculty of Medicine, Comenius University, Martin, Slovakia.
| | - Ivana Kazimierová
- Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, Mala Hora, Martin, Slovakia.,Martin's Biomedical Center (BioMed), Jessenius Faculty of Medicine, Comenius University, Martin, Slovakia
| | | | - Marta Jošková
- Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, Mala Hora, Martin, Slovakia
| | - Marian Adamkov
- Institute of Histology and Embryology Jessenius Faculty of Medicine Comenius University, Martin, Slovakia
| | - Soňa Fraňová
- Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, Mala Hora, Martin, Slovakia
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30
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Liu X, Pan Z. Store-Operated Calcium Entry in the Cardiovascular System. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1349:303-333. [DOI: 10.1007/978-981-16-4254-8_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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31
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Liu B, Zhang B, Roos CM, Zeng W, Zhang H, Guo R. Upregulation of Orai1 and increased calcium entry contribute to angiotensin II-induced human coronary smooth muscle cell proliferation: Running Title: Angiotensin II-induced human coronary smooth muscle cells proliferation. Peptides 2020; 133:170386. [PMID: 32827590 DOI: 10.1016/j.peptides.2020.170386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 08/18/2020] [Accepted: 08/18/2020] [Indexed: 12/12/2022]
Abstract
Angiotensin II (Ang II) is an oligopeptide of the renin-angiotensin system, and Ang II-induced vascular smooth muscle cell (VSMC) proliferation is an important pathophysiological process involved in atherosclerosis; however, the underlying mechanism remains unclear. Orai1 and Stim1 are the main components of store-operated Ca2+ entry (SOCE), which has an important effect on VSMC proliferation. In the present study, we showed that Ang II-induced human coronary smooth muscle cell (HCSMC) proliferation was associated with increased calcium entry. The expression of Orai1, but not that of Stim1, was significantly upregulated in Ang II-treated HCSMCs. However, knockdown of Orai1 or Stim1 decreased HCSMC proliferation and SOCE activity in Ang II-treated HCSMCs. Orai1 was significantly downregulated in HCSMCs transfected with short interfering RNA (siRNA) against NOX2 or NF-κB. Transfection with siRNA against NOX2 or p65 also decreased Ang II-induced HCSMCs SOCE activation and proliferation. These findings suggested that Ang II upregulated Orai1 via the NF-κB and NOX2 pathways, leading to increased SOCE and HCSMC proliferation. The molecular factors mediating Ang II-induced SOCE upregulation are potential therapeutic targets for the prevention of Ang II-sensitive or Ang II-dependent HCSMC proliferation.
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Affiliation(s)
- Bei Liu
- Department of Cardiology, 920th Hospital of the PLA Joint Logistics Support Force, Kunming, Yunnan, 650032, China
| | - Bin Zhang
- Division of Cardiovascular Surgery, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Carolyn M Roos
- Division of Cardiovascular Surgery, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Wenjun Zeng
- Department of Cardiology, 920th Hospital of the PLA Joint Logistics Support Force, Kunming, Yunnan, 650032, China
| | - Haiping Zhang
- Department of Cardiology, 920th Hospital of the PLA Joint Logistics Support Force, Kunming, Yunnan, 650032, China
| | - Ruiwei Guo
- Department of Cardiology, 920th Hospital of the PLA Joint Logistics Support Force, Kunming, Yunnan, 650032, China.
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Du X, Zhi J, Yang D, Wang Q, Luo X, Deng X. Research progress in the mechanism of calcium ion on contraction and relaxation of airway smooth muscle cells. J Recept Signal Transduct Res 2020; 41:117-122. [PMID: 32808844 DOI: 10.1080/10799893.2020.1806315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
lntracellular calcium ion is the key secondary messenger system of the cellular processes in airway smooth muscle cells(ASMc). The treatment and regulation of Ca2+ in airway smooth muscle (ASM) is, in part, to associated with many airway diseases such as asthma, COPD and pulmonary fibrosis. The mechanism of contraction and relaxation of ASM is a concerned aspect in airway diseases. This review emphasizes established and recent discoveries whice show the research progress of Ca2+ on cell contraction and relaxation in ASM in recent years, to provide theoretical support and new targets for clinical prevention and treatment of perioperative bronchospasm and variousrespiratory related diseases.
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Affiliation(s)
- Xiyu Du
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Juan Zhi
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dong Yang
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qianyu Wang
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiang Luo
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaoming Deng
- Department of Anesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Tanwar J, Arora S, Motiani RK. Orai3: Oncochannel with therapeutic potential. Cell Calcium 2020; 90:102247. [PMID: 32659517 DOI: 10.1016/j.ceca.2020.102247] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/19/2020] [Accepted: 06/19/2020] [Indexed: 01/10/2023]
Abstract
Ion channels in particular Calcium (Ca2+) channels play a critical role in physiology by regulating plethora of cellular processes ranging from cell proliferation, differentiation, transcriptional regulation and programmed cell death. One such physiologically important and highly Ca2+ selective channel family is Orai channels consisting of three homologs Orai1, Orai2 and Orai3. Orai channels are responsible for Ca2+ influx across the plasma membrane in response to decrease in Endoplasmic Reticulum (ER) Ca2+ stores. STIM1/STIM2 proteins sense the reduction in ER Ca2+ levels and activate Orai channels for restoring ER Ca2+ as well as for driving cellular functions. This signaling cascade is known as Store Operated Ca2+ Entry (SOCE). Although Orai1 is the ubiquitous SOCE channel protein, Orai2 and Orai3 mediate SOCE in certain specific tissues. Further, mammalian specific homolog Orai3 forms heteromultimeric channel with Orai1 for constituting Arachidonic acid regulated Ca2+ (ARC) channels or arachidonic acid metabolite Leukotriene C4 (LTC4) regulated Ca2+ (LRC) channels. Literature suggests that Orai3 regulates Breast, Prostate, Lung and Gastrointestinal cancers by either forming Store Operated Ca2+ (SOC) or ARC/LRC channels in the cancerous cells but not in healthy tissue. In this review, we would discuss the role of Orai3 in these cancers and would highlight the potential of therapeutic targeting of Orai3 for better management and treatment of cancer. Finally, we will deliberate on key outstanding questions in the field that demand critical attention and further studies.
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Affiliation(s)
- Jyoti Tanwar
- Laboratory of Calciomics and Systemic Pathophysiology, Regional Centre for Biotechnology (RCB), Faridabad, Delhi-NCR, India; CSIR-Institute of Genomics and Integrative Biology (IGIB), New Delhi, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Samriddhi Arora
- Laboratory of Calciomics and Systemic Pathophysiology, Regional Centre for Biotechnology (RCB), Faridabad, Delhi-NCR, India
| | - Rajender K Motiani
- Laboratory of Calciomics and Systemic Pathophysiology, Regional Centre for Biotechnology (RCB), Faridabad, Delhi-NCR, India.
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Kong Y, Ding L, Xu Y, Wang Z, Sun L. YiQi GuBen Formula Inhibits PDGF-BB-Induced Proliferation and Migration of Airway Smooth Muscle Cells. Pharmacology 2020; 105:424-433. [PMID: 32454491 DOI: 10.1159/000504516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 11/01/2019] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Increased proliferation and migration of airway smooth muscle cells (ASMCs) are key events in the development of asthma. YiQi GuBen is a traditional Chinese medicinal formula shown to effectively reduce the recurrence rate of asthma and induce anti-asthma effects through multiple pathways; however, its potential role in regulating ASMC proliferation and preventing bronchial asthma remains unexplored. METHODS This study investigated the effects of YiQi GuBen formula on platelet-derived growth factor (PDGF)-BB-induced ASMC proliferation and migration by methylthiazolyldiphenyl-tetrazolium bromide, wound healing, transwell, and cell cycle assays. The influence of YiQi GuBen formula on nuclear factor-κB (NF-κB) signaling-relevant proteins was measured by Western blotting, real-time quantitative PCR (RT-qPCR) assay, and ELISA. RESULTS We found that pretreatment with YiQi GuBen formula had a dose-dependent inhibitory effect on PDGF-BB-stimulated ASMC proliferation. It also suppressed PDGF-BB-induced ASMC migration and arrested PDGF-BB-induced cell cycle progression. Furthermore, YiQi GuBen formula suppressed PDGF-BB-induced expression of phosphorylated p65 and the release of inflammatory factors TNF-α, IL-1β, IL-6, and IL-8 in ASMCs. CONCLUSIONS In summary, our study shows that YiQi GuBen formula is able to significantly inhibit PDGF-BB-induced ASMC proliferation and migration by suppressing the NF-κB signaling pathway.
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Affiliation(s)
- Yibu Kong
- Changchun University of Chinese Medicine, Changchun, China
| | - Lizhong Ding
- Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China
| | - Yan Xu
- Changchun University of Chinese Medicine, Changchun, China
| | - Zhongtian Wang
- Changchun University of Chinese Medicine, Changchun, China
| | - Liping Sun
- Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China,
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Joskova M, Mokry J, Franova S. Respiratory Cilia as a Therapeutic Target of Phosphodiesterase Inhibitors. Front Pharmacol 2020; 11:609. [PMID: 32435198 PMCID: PMC7218135 DOI: 10.3389/fphar.2020.00609] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 04/20/2020] [Indexed: 11/30/2022] Open
Abstract
Mucociliary clearance is an essential airway defense mechanism dependent predominantly on the proper ciliary function and mucus rheology. The crucial role of cilia is evident in `a variety of respiratory diseases, as the ciliary dysfunction is associated with a progressive decline in lung function over time. The activity of cilia is under supervision of multiple physiological regulators, including second messengers. Their role is to enable a movement in coordinated metachronal waves at certain beat frequency. Ciliary function can be modulated by various stimuli, including agents from the group of beta2 agonists, cholinergic drugs, and adenosine triphosphate (ATP). They trigger cilia to move faster in response to elevated cytoplasmic Ca2+ originated from intracellular sources or replenished from extracellular space. Well-known cilia-stimulatory effect of Ca2+ ions can be abolished or even reversed by modulating the phosphodiesterase (PDE)-mediated breakdown of cyclic adenosine monophosphate (cAMP) since the overall change in ciliary beating has been dependent on the balance between Ca2+ ions and cAMP. Moreover, in chronic respiratory diseases, high ATP levels may contribute to cAMP hydrolysis and thus to a decrease in the ciliary beat frequency (CBF). The role of PDE inhibitors in airway cilia-driven transport may help in prevention of progressive loss of pulmonary function often observed despite current therapy. Furthermore, administration of selective PDE inhibitors by inhalation lowers the risk of their systemic effects. Based on this review we may conclude that selective (PDE1, PDE4) or dual PDE inhibitors (PDE3/4) increase the intracellular level of cyclic nucleotides in airway epithelial cells and thus may be an important target in the development of new inhaled mucokinetic agents. Further research is required to provide evidence of their effectiveness and feasibility regarding their cilia-modulating properties.
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Affiliation(s)
- Marta Joskova
- Department of Pharmacology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Juraj Mokry
- Department of Pharmacology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
| | - Sona Franova
- Department of Pharmacology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovakia
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Canonical Transient Potential Receptor-3 Channels in Normal and Diseased Airway Smooth Muscle Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1131:471-487. [PMID: 31646521 DOI: 10.1007/978-3-030-12457-1_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
All seven canonical transient potential receptor (TRPC1-7) channel members are expressed in mammalian airway smooth muscle cells (ASMCs). Among this family, TRPC3 channel plays an important role in the control of the resting [Ca2+]i and agonist-induced increase in [Ca2+]i. This channel is significantly upregulated in molecular expression and functional activity in airway diseases. The upregulated channel significantly augments the resting [Ca2+]i and agonist-induced increase in [Ca2+]i, thereby exerting a direct and essential effect in airway hyperresponsiveness. The increased TRPC3 channel-mediated Ca2+ signaling also results in the transcription factor nuclear factor-κB (NF-κB) activation via protein kinase C-α (PKCα)-dependent inhibitor of NFκB-α (IκBα) and calcineurin-dependent IκBβ signaling pathways, which upregulates cyclin-D1 expression and causes cell proliferation, leading to airway remodeling. TRPC3 channel may further interact with intracellular release Ca2+ channels, Orai channels and Ca2+-sensing stromal interaction molecules, mediating important cellular responses in ASMCs and the development of airway diseases.
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NS8593 inhibits Ca 2+ permeant channels reversing mouse airway smooth muscle contraction. Life Sci 2019; 238:116953. [PMID: 31626793 DOI: 10.1016/j.lfs.2019.116953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 10/09/2019] [Accepted: 10/09/2019] [Indexed: 01/24/2023]
Abstract
AIMS This study focused on investigating whether NS8593 reverses airway smooth muscle (ASM) contraction and the underlying mechanism. MAIN METHODS ASM contraction in mouse tracheal rings and lung slices was measured. Currents mediated by voltage dependent Ca2+ channels (VDCCs) and ACH-activated channels were measured using the whole-cell patch-clamp technique in single tracheal smooth muscle cells (TSMCs). Intracellular Ca2+ level and cell length were measured using an LSM 700 laser confocal microscope and a Zen 2010 software. Mouse respiratory system resistance (Rrs) was assessed using a FlexiVent FX system. KEY FINDINGS High K+ (80 mM K+) and ACH induced ASM contraction in mouse tracheal rings and lung slices, which was partially relaxed by nifedipine (blocker of L-type VDCCs, LVDCCs), YM-58483 (blocker of store-operated Ca2+ entry (SOCE), transient receptor potential C3 (TRPC3) and TRPC5 channels), respectively. However, the contraction was completely reversed by NS8593, whereas, slightly relaxed by formoterol. ACH activated inward currents, which displayed linear and reversed around 0 mV, indicating the currents were mediated by non-selective cation channels (NSCCs). Moreover, these currents were blocked by YM-58483. In addition, such currents were abolished by NS8593, implicating that NS8593 inhibits the same channels. Besides, NS8593 inhibited increases of intracellular Ca2+ and the associated cell shortening. Finally, NS8593 inhibited ACH-induced increases of mouse respirator system resistance (Rrs). SIGNIFICANCE Our results indicate that NS8593 inhibits LVDCCs and NSCCs, resulting in decreases of intracellular Ca2+ and then leading to ASM relaxation. These data suggest that NS8593 might be a new bronchodilator.
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Gu Y, Yu X, Li X, Wang X, Gao X, Wang M, Wang S, Li X, Zhang Y. Inhibitory effect of mabuterol on proliferation of rat ASMCs induced by PDGF-BB via regulating [Ca2+]i and mitochondrial fission/fusion. Chem Biol Interact 2019; 307:63-72. [DOI: 10.1016/j.cbi.2019.04.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/19/2019] [Accepted: 04/17/2019] [Indexed: 02/08/2023]
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Johnson M, Trebak M. ORAI channels in cellular remodeling of cardiorespiratory disease. Cell Calcium 2019; 79:1-10. [PMID: 30772685 DOI: 10.1016/j.ceca.2019.01.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/31/2019] [Accepted: 01/31/2019] [Indexed: 01/08/2023]
Abstract
Cardiorespiratory disease, which includes systemic arterial hypertension, restenosis, atherosclerosis, pulmonary arterial hypertension, asthma, and chronic obstructive pulmonary disease (COPD) are highly prevalent and devastating diseases with limited therapeutic modalities. A common pathophysiological theme to these diseases is cellular remodeling, which is contributed by changes in expression and activation of ion channels critical for either excitability or growth. Calcium (Ca2+) signaling and specifically ORAI Ca2+ channels have emerged as significant regulators of smooth muscle, endothelial, epithelial, platelet, and immune cell remodeling. This review details the dysregulation of ORAI in cardiorespiratory diseases, and how this dysregulation of ORAI contributes to cellular remodeling.
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Affiliation(s)
- Martin Johnson
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, United States
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, United States.
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40
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Rode B, Bailey MA, Marthan R, Beech DJ, Guibert C. ORAI Channels as Potential Therapeutic Targets in Pulmonary Hypertension. Physiology (Bethesda) 2019; 33:261-268. [PMID: 29897302 DOI: 10.1152/physiol.00016.2018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Pulmonary hypertension is a complex and fatal disease that lacks treatments. Its pathophysiology involves pulmonary artery hyperreactivity, endothelial dysfunction, wall remodelling, inflammation, and thrombosis, which could all depend on ORAI Ca2+ channels. We review the knowledge about ORAI channels in pulmonary artery and discuss the interest to target them in the treatment of pulmonary hypertension.
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Affiliation(s)
- Baptiste Rode
- INSERM, Centre de Recherche Cardio-Thoracique de Bordeaux , Bordeaux , France.,Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds , Leeds , United Kingdom
| | - Marc A Bailey
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds , Leeds , United Kingdom
| | - Roger Marthan
- INSERM, Centre de Recherche Cardio-Thoracique de Bordeaux , Bordeaux , France.,Univ. of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux , Bordeaux , France.,CHU de Bordeaux, Pôle Cardio-Thoracique, Bordeaux , France
| | - David J Beech
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds , Leeds , United Kingdom
| | - Christelle Guibert
- INSERM, Centre de Recherche Cardio-Thoracique de Bordeaux , Bordeaux , France.,Univ. of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux , Bordeaux , France
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Calcium Imaging of Store-Operated Calcium (Ca 2+) Entry (SOCE) in HEK293 Cells Using Fura-2. Methods Mol Biol 2019; 1925:163-172. [PMID: 30674026 DOI: 10.1007/978-1-4939-9018-4_15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The store-operated calcium (Ca2+) entry (SOCE) pathway is an essential Ca2+ signaling pathway in non-excitable cells that serve many physiological functions. SOCE is mediated through the plasma membrane (PM) protein, Orai1, and the endoplasmic reticulum protein, stromal interaction molecule 1 (STIM1). One of the most well-established methods to study SOCE is using the Ca2+-sensing dye, fura-2. Here we describe a detailed protocol on how to use fura-2 to study Ca2+ signaling from SOCE in human embryonic kidney (HEK) cells.
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42
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Circ-SATB2 upregulates STIM1 expression and regulates vascular smooth muscle cell proliferation and differentiation through miR-939. Biochem Biophys Res Commun 2018; 505:119-125. [DOI: 10.1016/j.bbrc.2018.09.069] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 09/11/2018] [Indexed: 01/19/2023]
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43
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Study of the Endogenous CRAC Channel Using shRNA-Mediated Gene Silencing. Methods Mol Biol 2018. [PMID: 30203284 DOI: 10.1007/978-1-4939-8704-7_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
The Ca2+ release-activated Ca2+ (CRAC) current is a major signaling event in non-excitable cells whereby Ca2+ store depletion activates Ca2+ entry across the plasma membrane from the extracellular space. Stromal interaction molecule 1 (STIM1) and Orai1 proteins are the key molecular players of the CRAC channel. Previous studies have linked activity of this channel to many physiological functions, and dysregulation of the CRAC channel has been associated with various diseases. In the absence of inducible tissue-specific knockout mice, in vivo knockdown studies examining the endogenous function of CRAC channel proteins, STIM1 and Orai1, are a challenge. In this chapter, we describe a lentiviral delivery system of shRNA-mediated gene silencing that has proven successful in studying the endogenous CRAC channel in vivo.
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44
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Trebak M, Putney JW. ORAI Calcium Channels. Physiology (Bethesda) 2018; 32:332-342. [PMID: 28615316 DOI: 10.1152/physiol.00011.2017] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/10/2017] [Accepted: 05/10/2017] [Indexed: 12/17/2022] Open
Abstract
In this review article, we discuss the different gene products and translational variants of ORAI proteins and their contribution to the makeup of different native calcium-conducting channels with distinct compositions and modes of activation. We also review the different modes of regulation of these distinct calcium channels and their impact on downstream cellular signaling controlling important physiological functions.
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Affiliation(s)
- Mohamed Trebak
- The Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania; and
| | - James W Putney
- The National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
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45
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Huang TY, Lin YH, Chang HA, Yeh TY, Chang YH, Chen YF, Chen YC, Li CC, Chiu WT. STIM1 Knockout Enhances PDGF-Mediated Ca 2+ Signaling through Upregulation of the PDGFR⁻PLCγ⁻STIM2 Cascade. Int J Mol Sci 2018; 19:ijms19061799. [PMID: 29912163 PMCID: PMC6032054 DOI: 10.3390/ijms19061799] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 06/13/2018] [Accepted: 06/14/2018] [Indexed: 01/24/2023] Open
Abstract
Platelet-derived growth factor (PDGF) has mitogenic and chemotactic effects on fibroblasts. An increase in intracellular Ca2+ is one of the first events that occurs following the stimulation of PDGF receptors (PDGFRs). PDGF activates Ca2+ elevation by activating the phospholipase C gamma (PLCγ)-signaling pathway, resulting in ER Ca2+ release. Store-operated Ca2+ entry (SOCE) is the major form of extracellular Ca2+ influx following depletion of ER Ca2+ stores and stromal interaction molecule 1 (STIM1) is a key molecule in the regulation of SOCE. In this study, wild-type and STIM1 knockout mouse embryonic fibroblasts (MEF) cells were used to investigate the role of STIM1 in PDGF-induced Ca2+ oscillation and its functions in MEF cells. The unexpected findings suggest that STIM1 knockout enhances PDGFR–PLCγ–STIM2 signaling, which in turn increases PDGF-BB-induced Ca2+ elevation. Enhanced expressions of PDGFRs and PLCγ in STIM1 knockout cells induce Ca2+ release from the ER store through PLCγ–IP3 signaling. Moreover, STIM2 replaces STIM1 to act as the major ER Ca2+ sensor in activating SOCE. However, activation of PDGFRs also activate Akt, ERK, and JNK to regulate cellular functions, such as cell migration. These results suggest that alternative switchable pathways can be observed in cells, which act downstream of the growth factors that regulate Ca2+ signaling.
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Affiliation(s)
- Tzu-Yu Huang
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan.
| | - Yi-Hsin Lin
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan.
| | - Heng-Ai Chang
- Institute of Basic Medical Sciences, National Cheng Kung University, Tainan 701, Taiwan.
| | - Tzu-Ying Yeh
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan.
| | - Ya-Han Chang
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan.
| | - Yi-Fan Chen
- Institute of Basic Medical Sciences, National Cheng Kung University, Tainan 701, Taiwan.
| | - Ying-Chi Chen
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan.
| | - Chun-Chun Li
- Department of Life Sciences, National Cheng Kung University, Tainan 701, Taiwan.
| | - Wen-Tai Chiu
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan.
- Institute of Basic Medical Sciences, National Cheng Kung University, Tainan 701, Taiwan.
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46
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Yang S, Wang D, Cao X, Zhang X, Yuan X, Yang T, Mi Y. Store operated calcium channels are associated with diabetic cystopathy in streptozotocin‑induced diabetic rats. Mol Med Rep 2018. [PMID: 29532875 PMCID: PMC5928646 DOI: 10.3892/mmr.2018.8723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Store operated calcium channels (SOCCs) have been suggested to play a critical role in many diabetic complications. Diabetic cystopathy (DCP) is common in patients with diabetes, but the role of SOCCs in DCP is still unclear. The aim of the present study was to investigate the role of SOCCs in DCP with streptozocin (STZ)-induced diabetic rats. Specifically, the authors investigated whether SOCCs were altered in streptozocin (STZ)-induced diabetic rats and, if so, how this may contribute to the contraction of bladder detrusor strips and the intracellular Ca2+ concentration of bladder smooth muscle cells in diabetic rats. Cyclopiazonic acid (CPA, 10 µM) and SKF-96365 (10 µM) were used to activate and inhibit SOCCs respectively, to research the effects of SOCCs on the contraction of the bladder detrusor strips in normal and STZ-induced diabetic rats at the 4th, 8th and 12th week after the diabetic rat model was established. The changes of intracellular Ca2+ were also evaluated under confocal microscopy with pretreated Fluo-4AM. In addition, the expressions of Orai1 and STIM1 were detected by reverse transcription-quantitative polymerase chain reaction and western blotting at different time points. According to the results, the contractive frequency of diabetic bladder muscle strips was higher than that of controls in the 4th and 8th week. The increased fluorescence intensity was detected after using CPA and SKF-96365 in diabetic groups. The expressions of Orai1 and STIM1 changed in a time-dependent manner.
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Affiliation(s)
- Sen Yang
- First College of Clinical Medicine, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Dongwen Wang
- First College of Clinical Medicine, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Xiaoming Cao
- First College of Clinical Medicine, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Xuhui Zhang
- First College of Clinical Medicine, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Xiaobin Yuan
- First College of Clinical Medicine, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Tiancheng Yang
- First College of Clinical Medicine, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Yang Mi
- First College of Clinical Medicine, First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
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47
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Joskova M, Sutovska M, Durdik P, Koniar D, Hargas L, Banovcin P, Hrianka M, Khazaei V, Pappova L, Franova S. The Role of Ion Channels to Regulate Airway Ciliary Beat Frequency During Allergic Inflammation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 921:27-35. [PMID: 27369295 DOI: 10.1007/5584_2016_247] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Overproduction of mucus is a hallmark of asthma. The aim of this study was to identify potentially effective therapies for removing excess mucus. The role of voltage-gated (Kir 6.1, KCa 1.1) and store-operated ion channels (SOC, CRAC) in respiratory cilia, relating to the tracheal ciliary beat frequency (CBF), was compared under the physiological and allergic airway conditions. Ex vivo experiments were designed to test the local effects of Kir 6.1, KCa 1.1 and CRAC ion channel modulators in a concentration-dependent manner on the CBF. Cilia, obtained with the brushing method, were monitored by a high-speed video camera and analyzed with ciliary analysis software. In natural conditions, a Kir 6.1 opener accelerated CBF, while CRAC blocker slowed it in a concentration-dependent manner. In allergic inflammation, the effect of Kir 6.1 opener was insignificant, with a tendency to decrease CBF. A cilio-inhibitory effect of a CRAC blocker, while gently reduced by allergic inflammation, remained significant. A KCa 1.1 opener turned out to significantly enhance the CBF under the allergic OVA-sensitized conditions. We conclude that optimally attuned concentration of KCa 1.1 openers or special types of bimodal SOC channel blockers, potentially given by inhalation, might benefit asthma.
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Affiliation(s)
- M Joskova
- Department of Pharmacology, BioMed Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, 4C Mala Hora St, 036 01, Martin, Slovakia.
| | - M Sutovska
- Department of Pharmacology, BioMed Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, 4C Mala Hora St, 036 01, Martin, Slovakia
| | - P Durdik
- Department of Children and Adolescents, Jessenius Faculty of Medicine, Comenius University in Bratislava and Martin University Hospital, 2 Kollarova St, 036 01, Martin, Slovakia
| | - D Koniar
- Department of Mechatronics and Electronics, Faculty of Electrical Engineering, University of Zilina, 1 Univerzitna St, 010 26, Zilina, Slovakia
| | - L Hargas
- Department of Mechatronics and Electronics, Faculty of Electrical Engineering, University of Zilina, 1 Univerzitna St, 010 26, Zilina, Slovakia
| | - P Banovcin
- Department of Children and Adolescents, Jessenius Faculty of Medicine, Comenius University in Bratislava and Martin University Hospital, 2 Kollarova St, 036 01, Martin, Slovakia
| | - M Hrianka
- Department of Mechatronics and Electronics, Faculty of Electrical Engineering, University of Zilina, 1 Univerzitna St, 010 26, Zilina, Slovakia
| | - V Khazaei
- Department of Pharmacology, BioMed Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, 4C Mala Hora St, 036 01, Martin, Slovakia
| | - L Pappova
- Department of Pharmacology, BioMed Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, 4C Mala Hora St, 036 01, Martin, Slovakia
| | - S Franova
- Department of Pharmacology, BioMed Martin, Jessenius Faculty of Medicine, Comenius University in Bratislava, 4C Mala Hora St, 036 01, Martin, Slovakia
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Zhou H, Wu Q, Wei L, Peng S. Paeoniflorin inhibits PDGF‑BB‑induced human airway smooth muscle cell growth and migration. Mol Med Rep 2017; 17:2660-2664. [PMID: 29207148 DOI: 10.3892/mmr.2017.8180] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 03/21/2017] [Indexed: 11/05/2022] Open
Abstract
Abnormal proliferation and migration of airway smooth muscle cells (ASMCs) is important in the progression of asthma. Paeoniflorin (PF), one of the major active ingredients of Paeonia lactiflora, has been reported to exhibit anti‑asthmatic effects. However, the effects of PF in the regulation of platelet‑derived growth factor (PDGF)‑BB‑induced ASMC proliferation and migration remain unknown. The present study was designed to investigate the effects of PF on human ASMCs and the underlying mechanism. The results demonstrated that PF treatment significantly reduced the numbers of live ASMC cells and their PDGF‑BB‑induced migration. PF treatment also suppressed PDGF‑BB‑induced α‑smooth muscle actin expression in ASMCs. Furthermore, pretreatment with PF reduced PDGF‑BB‑induced phosphorylation of phosphoinositide 3‑kinase (PI3K) and AKT serine/threonine kinase 1 (Akt) in ASMCs. In conclusion, the present study demonstrated for the first time that PF inhibited ASMC growth and migration induced by PDGF‑BB, and that this effect may be partly due to inhibition of the PI3K/Akt signaling pathway. The results provide novel information regarding the role of PF as a potential therapeutic agent for the treatment of asthma.
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Affiliation(s)
- Hong Zhou
- Graduate School of Tianjin Medical University, Tianjin 300070, P.R. China
| | - Qi Wu
- Department of Respiration, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Luqing Wei
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Logistics University of Chinese People's Armed Police Force, Tianjin 300162, P.R. China
| | - Shouchun Peng
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Logistics University of Chinese People's Armed Police Force, Tianjin 300162, P.R. China
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Chen XX, Zhang JH, Pan BH, Ren HL, Feng XL, Wang JL, Xiao JH. Role of canonical transient receptor potential channel-3 in acetylcholine-induced mouse airway smooth muscle cell proliferation. Life Sci 2017; 187:64-73. [PMID: 28802903 DOI: 10.1016/j.lfs.2017.08.009] [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] [Received: 05/10/2017] [Revised: 07/22/2017] [Accepted: 08/08/2017] [Indexed: 12/17/2022]
Abstract
AIMS Canonical transient receptor potential channel-3 (TRPC3)-encoded Ca2+-permeable nonselective cation channel (NSCC) has been proven to be an important native constitutively active channel in airway smooth muscle cell (ASMC), which plays significant roles in physiological and pathological conditions by controlling Ca2+ homeostasis in ASMC. Acetylcholine (ACh) is generally accepted as a contractile parasympathetic neurotransmitter in the airway. Recently studies have revealed the pathological role of ACh in airway remodeling, however, the mechanisms remain unclear. Here, we investigated the role of TRPC3 in ACh-induced ASMC proliferation. MATERIALS AND METHODS Primary mouse ASMCs were cultured with or without ACh treatment, then cell viability, TRPC3 expression, NSCC currents and [Ca2+]i changes were examined by MTT assay, cell counting, Western blotting, standard whole-cell patch clamp recording and calcium imaging, respectively. Small interfering RNA (siRNA) technology was used to confirm the contribution of TRPC3 to ACh-induced ASMC proliferation. KEY FINDINGS TRPC3 blocker Gd3+, antibody or siRNA largely inhibited ACh-induced up-regulation of TRPC3 protein, enhancement of NSCC currents, resting [Ca2+]i and KCl-induced changes in [Ca2+]i, eventually inhibiting ACh-induced ASMC proliferation. SIGNIFICANCE Our data suggested ACh could induce ASMC proliferation, and TRPC3 may be involved in ACh-induced ASMC proliferation that occurs with airway remodeling.
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Affiliation(s)
- Xiao-Xu Chen
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jia-Hua Zhang
- Center for Stem Cell Research and Application, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Bin-Hua Pan
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hui-Li Ren
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiu-Ling Feng
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jia-Ling Wang
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jun-Hua Xiao
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; The Key Laboratory for Drug Target Researches and Pharmacodynamic Evaluation of Hubei Province, Wuhan 430030, China.
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Qiu C, Liu W, Shi F, Fen M, Ren L, Qi H. Silencing of β1 integrin regulates airway remodeling by regulating the transcription of SOCE‑associated genes in asthmatic mice. Mol Med Rep 2017; 16:2645-2651. [PMID: 28656279 PMCID: PMC5547928 DOI: 10.3892/mmr.2017.6863] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 04/27/2017] [Indexed: 01/22/2023] Open
Abstract
The incidence of asthma is increasing globally; however, current treatments are only able to cure a certain proportion of patients. There is an urgent need to develop novel therapies. β1 integrin serves a role in the pathophysiology of asthma through the development of airway remodeling. The aim of the present study was to investigate silencing of the β1 integrin gene in pre-clinical models of allergic asthma. BALB/c mice were sensitized with ovalbumin through intraperitoneal injection and repeated aerosolized ovalbumin. A short hairpin RNA of the β1 integrin gene was designed and transfected into mouse models of asthma in vivo, in order to evaluate whether silencing of the β1 integrin gene affects airway smooth muscle cell proliferation and inflammation by regulating the mRNA expression of store-operated Ca2+ entry (SOCE)-associated genes. Silencing the β1 integrin gene may downregulate β1 integrin mRNA while not statistically decreasing α-smooth muscle actin gene expression and airway smooth muscle thickness. β1 integrin silencing was able to downregulate the transcription of SOCE-associated genes to normal levels, including calcium release-activated calcium modulator 1 and short transient receptor potential channel member 1, but not stromal interaction molecule 1, in asthma. Silencing of the β1 integrin gene additionally maintained nuclear factor of activated T-cells cytoplasmic 1 gene expression, and inflammatory cytokines interleukin-4 and interferon-γ at normal levels. The results of the present study provide evidence to suggest that silencing of the β1 integrin gene may be of therapeutic benefit for patients with asthma.
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Affiliation(s)
- Chen Qiu
- Department of Respiratory Medicine, The Second Clinical College, Jinan University, Shenzhen, Guangdong 518001, P.R. China
| | - Wenwen Liu
- Department of Respiratory Medicine, The Second Clinical College, Jinan University, Shenzhen, Guangdong 518001, P.R. China
| | - Fei Shi
- Department of Respiratory Medicine, The Second Clinical College, Jinan University, Shenzhen, Guangdong 518001, P.R. China
| | - Mengjie Fen
- Department of Respiratory Medicine, The Second Clinical College, Jinan University, Shenzhen, Guangdong 518001, P.R. China
| | - Lili Ren
- Clinical Medical Research Center, The Second Clinical College, Jinan University, Shenzhen, Guangdong 518001, P.R. China
| | - Hui Qi
- Clinical Medical Research Center, The Second Clinical College, Jinan University, Shenzhen, Guangdong 518001, P.R. China
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