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The deregulation of STIM1 and store operative calcium entry impaired aortic smooth muscle cells contractility in aortic medial degeneration. Biosci Rep 2019; 39:BSR20181504. [PMID: 30504131 PMCID: PMC6328863 DOI: 10.1042/bsr20181504] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/14/2018] [Accepted: 11/27/2018] [Indexed: 12/20/2022] Open
Abstract
Background: Microarray analysis of clinical aortic samples suggested a potential role for stromal interaction molecule 1 (STIM1) in the modulation of aortic medial degeneration (AMD), despite the uncertainty about STIM1 in normal aortic smooth muscle cells (ASMCs). Here, we aimed to explore changes in STIM1 expression in AMD, and the possible mechanisms. Methods: An AMD model was established using auto-delivery of angiotensin II (Ang II) into ApoE-/- mice. We assessed the effects of SKF96365, a STIM1 inhibitor, in AMD model and in vitro cultured ASMCs. Elastic van Gieson (EVG) staining was used to visualize elastic fiber injury. Mitochondria changes were viewed by TEM. Cytoplasmic calcium was quantified by measuring fluo-4 staining in a flow cytometer. Mechanical stretching device was used to mimic stretching that ASMCs experience in vivo Cell apoptosis was determined by using Annexin V/propidium iodide (PI) staining. The expression of STIM1, contractile related proteins (α-smooth muscle actin (α-SMA), myosin light chain (MLC)), endoplasmic reticulum (ER) stress-related proteins (CHOP, activating transcription factor 6 (ATF-6)) and smad2/3 were assessed by Western blotting, immunohistochemistry (IHC), and immunofluorescence (IF). Results: SKF96365 exacerbated aortic injury in the AMD model. SKF96365 reduced cytoplasmic calcium concentration in ASMCs, caused mitochondrial swelling, and elevated the expression of ATF-6 and CHOP. SKF96365 decreased the expression of MLC and α-SMA in ASMCs, causing them to be vulnerable to mechanical stretch. SKF96365 suppressed smad2/3 activation after treatment with transforming growth factor (TGF) β1 (TGFβ1). Conclusions: STIM1 is indispensable in ASMCs. Interfering with STIM1 exaggerated the AMD process by modulating the expression of contractile proteins, inducing ER stress in ASMCs.
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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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53
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López-López JR, Cidad P, Pérez-García MT. Kv channels and vascular smooth muscle cell proliferation. Microcirculation 2018; 25. [PMID: 29110368 DOI: 10.1111/micc.12427] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 10/30/2017] [Indexed: 12/12/2022]
Abstract
Kv channels are present in virtually all VSMCs and strongly influence contractile responses. However, they are also instrumental in the proliferative, migratory, and secretory functions of synthetic, dedifferentiated VSMCs upon PM. In fact, Kv channels not only contribute to all these processes but also are active players in the phenotypic switch itself. This review is focused on the role(s) of Kv channels in VSMC proliferation, which is one of the best characterized functions of dedifferentiated VSMCs. VSMC proliferation is a complex process requiring specific Kv channels at specific time and locations. Their identification is further complicated by their large diversity and the differences in expression across vascular beds. Of interest, both conserved changes in some Kv channels and vascular bed-specific regulation of others seem to coexist and participate in VSMC proliferation through complementary mechanisms. Such a system will add flexibility to the process while providing the required robustness to preserve this fundamental cellular response.
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Affiliation(s)
- José R López-López
- Departamento de Bioquímica y Biología Molecular y Fisiología e Instituto de Biología y Genética Molecular (IBGM), Universidad de Valladolid y Consejo Superior de Investigaciones Científicas (CSIC), Valladolid, Spain
| | - Pilar Cidad
- Departamento de Bioquímica y Biología Molecular y Fisiología e Instituto de Biología y Genética Molecular (IBGM), Universidad de Valladolid y Consejo Superior de Investigaciones Científicas (CSIC), Valladolid, Spain
| | - M Teresa Pérez-García
- Departamento de Bioquímica y Biología Molecular y Fisiología e Instituto de Biología y Genética Molecular (IBGM), Universidad de Valladolid y Consejo Superior de Investigaciones Científicas (CSIC), Valladolid, Spain
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54
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Lambert M, Capuano V, Olschewski A, Sabourin J, Nagaraj C, Girerd B, Weatherald J, Humbert M, Antigny F. Ion Channels in Pulmonary Hypertension: A Therapeutic Interest? Int J Mol Sci 2018; 19:ijms19103162. [PMID: 30322215 PMCID: PMC6214085 DOI: 10.3390/ijms19103162] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 10/05/2018] [Accepted: 10/08/2018] [Indexed: 12/25/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a multifactorial and severe disease without curative therapies. PAH pathobiology involves altered pulmonary arterial tone, endothelial dysfunction, distal pulmonary vessel remodeling, and inflammation, which could all depend on ion channel activities (K⁺, Ca2+, Na⁺ and Cl-). This review focuses on ion channels in the pulmonary vasculature and discusses their pathophysiological contribution to PAH as well as their therapeutic potential in PAH.
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Affiliation(s)
- Mélanie Lambert
- Univ. Paris-Sud, Faculté de Médecine, 94270 Kremlin-Bicêtre, France.
- AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Département Hospitalo-Universitaire (DHU) Thorax Innovation, Service de Pneumologie et Réanimation Respiratoire, Hôpital de Bicêtre, 94270 Le Kremlin-Bicêtre, France.
- UMRS 999, INSERM and Univ. Paris⁻Sud, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital-Marie-Lannelongue, 92350 Le Plessis Robinson, France.
| | - Véronique Capuano
- Univ. Paris-Sud, Faculté de Médecine, 94270 Kremlin-Bicêtre, France.
- AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Département Hospitalo-Universitaire (DHU) Thorax Innovation, Service de Pneumologie et Réanimation Respiratoire, Hôpital de Bicêtre, 94270 Le Kremlin-Bicêtre, France.
- UMRS 999, INSERM and Univ. Paris⁻Sud, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital-Marie-Lannelongue, 92350 Le Plessis Robinson, France.
| | - Andrea Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research, Stiftingtalstrasse 24, Graz 8010, Austria.
- Department of Physiology, Medical University Graz, Neue Stiftingtalstraße 6, Graz 8010, Austria.
| | - Jessica Sabourin
- Signalisation et Physiopathologie Cardiovasculaire, UMRS 1180, Univ. Paris-Sud, INSERM, Université Paris-Saclay, 92296 Châtenay-Malabry, France.
| | - Chandran Nagaraj
- Ludwig Boltzmann Institute for Lung Vascular Research, Stiftingtalstrasse 24, Graz 8010, Austria.
| | - Barbara Girerd
- Univ. Paris-Sud, Faculté de Médecine, 94270 Kremlin-Bicêtre, France.
- AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Département Hospitalo-Universitaire (DHU) Thorax Innovation, Service de Pneumologie et Réanimation Respiratoire, Hôpital de Bicêtre, 94270 Le Kremlin-Bicêtre, France.
- UMRS 999, INSERM and Univ. Paris⁻Sud, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital-Marie-Lannelongue, 92350 Le Plessis Robinson, France.
| | - Jason Weatherald
- Univ. Paris-Sud, Faculté de Médecine, 94270 Kremlin-Bicêtre, France.
- AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Département Hospitalo-Universitaire (DHU) Thorax Innovation, Service de Pneumologie et Réanimation Respiratoire, Hôpital de Bicêtre, 94270 Le Kremlin-Bicêtre, France.
- UMRS 999, INSERM and Univ. Paris⁻Sud, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital-Marie-Lannelongue, 92350 Le Plessis Robinson, France.
- Division of Respirology, Department of Medicine, University of Calgary, Calgary, AB T1Y 6J4, Canada.
- Libin Cardiovascular Institute of Alberta, University of Calgary, Calgary, AB T1Y 6J4, Canada.
| | - Marc Humbert
- Univ. Paris-Sud, Faculté de Médecine, 94270 Kremlin-Bicêtre, France.
- AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Département Hospitalo-Universitaire (DHU) Thorax Innovation, Service de Pneumologie et Réanimation Respiratoire, Hôpital de Bicêtre, 94270 Le Kremlin-Bicêtre, France.
- UMRS 999, INSERM and Univ. Paris⁻Sud, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital-Marie-Lannelongue, 92350 Le Plessis Robinson, France.
| | - Fabrice Antigny
- Univ. Paris-Sud, Faculté de Médecine, 94270 Kremlin-Bicêtre, France.
- AP-HP, Centre de Référence de l'Hypertension Pulmonaire Sévère, Département Hospitalo-Universitaire (DHU) Thorax Innovation, Service de Pneumologie et Réanimation Respiratoire, Hôpital de Bicêtre, 94270 Le Kremlin-Bicêtre, France.
- UMRS 999, INSERM and Univ. Paris⁻Sud, Laboratoire d'Excellence (LabEx) en Recherche sur le Médicament et l'Innovation Thérapeutique (LERMIT), Hôpital-Marie-Lannelongue, 92350 Le Plessis Robinson, France.
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55
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Reyes-García J, Flores-Soto E, Carbajal-García A, Sommer B, Montaño LM. Maintenance of intracellular Ca2+ basal concentration in airway smooth muscle (Review). Int J Mol Med 2018; 42:2998-3008. [PMID: 30280184 PMCID: PMC6202086 DOI: 10.3892/ijmm.2018.3910] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 09/18/2018] [Indexed: 01/07/2023] Open
Abstract
In airway smooth muscle, the intracellular basal Ca2+ concentration [b(Ca2+)i] must be tightly regulated by several mechanisms in order to maintain a proper airway patency. The b[Ca2+]i is efficiently regulated by sarcoplasmic reticulum Ca2+-ATPase 2b, plasma membrane Ca2+-ATPase 1 or 4 and by the Na+/Ca2+ exchanger. Membranal Ca2+ channels, including the L-type voltage dependent Ca2+ channel (L-VDCC), T-type voltage dependent Ca2+ channel (T-VDCC) and transient receptor potential canonical 3 (TRPC3), appear to be constitutively active under basal conditions via the action of different signaling pathways, and are responsible for Ca2+ influx to maintain b[Ca2+]i. The two types of voltage-dependent Ca2+ channels (L- and T-type) are modulated by phosphorylation processes mediated by mitogen-activated protein kinase kinase (MEK) and extracellular-signal-regulated kinase 1 and 2 (ERK1/2). The MEK/ERK signaling pathway can be activated by G-protein-coupled receptors through the αq subunit when the endogenous ligand (i.e., acetylcholine, histamine, leukotrienes, etc.) is present under basal conditions. It may also be stimulated when receptor tyrosine kinases are occupied by the appropriate ligand (cytokines, growth factors, etc.). ERK1/2 phosphorylates L-VDCC on Ser496 of the β2 subunit and Ser1928 of the α1 subunit, decreasing or increasing the channel activity, respectively, and enabling it to switch between an open and closed state. T-VDCC is also probably phosphorylated by ERK1/2, although further research is required to identify the phosphorylation sites. TRPC3 is directly activated by diacylglycerol produced by phospholipase C (PLCβ or γ). Constitutive inositol 1,4,5-trisphosphate production induces the release of Ca2+ from the sarcoplasmic reticulum through inositol triphosphate receptor 1. This ion induces Ca2+-induced Ca2+ release through the ryanodine receptor 2 (designated as Ca2+ ‘sparks’). Therefore, several Ca2+ handling mechanisms are finely tuned to regulate basal intracellular Ca2+ concentrations. It is conceivable that alterations in any of these processes may render airway smooth muscle susceptible to develop hyperresponsiveness that is observed in ailments such as asthma.
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Affiliation(s)
- Jorge Reyes-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | - Edgar Flores-Soto
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | - Abril Carbajal-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
| | - Bettina Sommer
- Departamento de Investigación en Hiperreactividad Bronquial, Instituto Nacional de Enfermedades Respiratorias, Ciudad de México 14080, México
| | - Luis M Montaño
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 04510, México
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56
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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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57
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Nguyen NT, Han W, Cao W, Wang Y, Wen S, Huang Y, Li M, Du L, Zhou Y. Store‐Operated Calcium Entry Mediated by ORAI and STIM. Compr Physiol 2018; 8:981-1002. [DOI: 10.1002/cphy.c170031] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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58
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Gopurappilly R, Deb BK, Chakraborty P, Hasan G. Stable STIM1 Knockdown in Self-Renewing Human Neural Precursors Promotes Premature Neural Differentiation. Front Mol Neurosci 2018; 11:178. [PMID: 29942250 PMCID: PMC6004407 DOI: 10.3389/fnmol.2018.00178] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 05/09/2018] [Indexed: 12/31/2022] Open
Abstract
Ca2+ signaling plays a significant role in the development of the vertebrate nervous system where it regulates neurite growth as well as synapse and neurotransmitter specification. Elucidating the role of Ca2+ signaling in mammalian neuronal development has been largely restricted to either small animal models or primary cultures. Here we derived human neural precursor cells (NPCs) from human embryonic stem cells to understand the functional significance of a less understood arm of calcium signaling, Store-operated Ca2+ entry or SOCE, in neuronal development. Human NPCs exhibited robust SOCE, which was significantly attenuated by expression of a stable shRNA-miR targeted toward the SOCE molecule, STIM1. Along with the plasma membrane channel Orai, STIM is an essential component of SOCE in many cell types, where it regulates gene expression. Therefore, we measured global gene expression in human NPCs with and without STIM1 knockdown. Interestingly, pathways down-regulated through STIM1 knockdown were related to cell proliferation and DNA replication processes, whereas post-synaptic signaling was identified as an up-regulated process. To understand the functional significance of these gene expression changes we measured the self-renewal capacity of NPCs with STIM1 knockdown. The STIM1 knockdown NPCs demonstrated significantly reduced neurosphere size and number as well as precocious spontaneous differentiation toward the neuronal lineage, as compared to control cells. These findings demonstrate that STIM1 mediated SOCE in human NPCs regulates gene expression changes, that in vivo are likely to physiologically modulate the self-renewal and differentiation of NPCs.
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Affiliation(s)
- Renjitha Gopurappilly
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India
| | - Bipan Kumar Deb
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India
| | - Pragnya Chakraborty
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India
| | - Gaiti Hasan
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India
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59
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Secondo A, Bagetta G, Amantea D. On the Role of Store-Operated Calcium Entry in Acute and Chronic Neurodegenerative Diseases. Front Mol Neurosci 2018; 11:87. [PMID: 29623030 PMCID: PMC5874322 DOI: 10.3389/fnmol.2018.00087] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 03/06/2018] [Indexed: 12/22/2022] Open
Abstract
In both excitable and non-excitable cells, calcium (Ca2+) signals are maintained by a highly integrated process involving store-operated Ca2+ entry (SOCE), namely the opening of plasma membrane (PM) Ca2+ channels following the release of Ca2+ from intracellular stores. Upon depletion of Ca2+ store, the stromal interaction molecule (STIM) senses Ca2+ level reduction and migrates from endoplasmic reticulum (ER)-like sites to the PM where it activates the channel proteins Orai and/or the transient receptor potential channels (TRPC) prompting Ca2+ refilling. Accumulating evidence suggests that SOCE dysregulation may trigger perturbation of intracellular Ca2+ signaling in neurons, glia or hematopoietic cells, thus participating to the pathogenesis of diverse neurodegenerative diseases. Under acute conditions, such as ischemic stroke, neuronal SOCE can either re-establish Ca2+ homeostasis or mediate Ca2+ overload, thus providing a non-excitotoxic mechanism of ischemic neuronal death. The dualistic role of SOCE in brain ischemia is further underscored by the evidence that it also participates to endothelial restoration and to the stabilization of intravascular thrombi. In Parkinson's disease (PD) models, loss of SOCE triggers ER stress and dysfunction/degeneration of dopaminergic neurons. Disruption of neuronal SOCE also underlies Alzheimer's disease (AD) pathogenesis, since both in genetic mouse models and in human sporadic AD brain samples, reduced SOCE contributes to synaptic loss and cognitive decline. Unlike the AD setting, in the striatum from Huntington's disease (HD) transgenic mice, an increased STIM2 expression causes elevated synaptic SOCE that was suggested to underlie synaptic loss in medium spiny neurons. Thus, pharmacological inhibition of SOCE is beneficial to synapse maintenance in HD models, whereas the same approach may be anticipated to be detrimental to cortical and hippocampal pyramidal neurons. On the other hand, up-regulation of SOCE may be beneficial during AD. These intriguing findings highlight the importance of further mechanistic studies to dissect the molecular pathways, and their corresponding targets, involved in synaptic dysfunction and neuronal loss during aging and neurodegenerative diseases.
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Affiliation(s)
- Agnese Secondo
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatological Sciences, University of Naples Federico II, Napoli, Italy
| | - Giacinto Bagetta
- Department of Pharmacy, Health and Nutritional Sciences, Section of Preclinical and Translational Pharmacology, University of Calabria, Cosenza, Italy
| | - Diana Amantea
- Department of Pharmacy, Health and Nutritional Sciences, Section of Preclinical and Translational Pharmacology, University of Calabria, Cosenza, Italy
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60
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Avila-Medina J, Mayoral-Gonzalez I, Dominguez-Rodriguez A, Gallardo-Castillo I, Ribas J, Ordoñez A, Rosado JA, Smani T. The Complex Role of Store Operated Calcium Entry Pathways and Related Proteins in the Function of Cardiac, Skeletal and Vascular Smooth Muscle Cells. Front Physiol 2018; 9:257. [PMID: 29618985 PMCID: PMC5872157 DOI: 10.3389/fphys.2018.00257] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 03/06/2018] [Indexed: 12/11/2022] Open
Abstract
Cardiac, skeletal, and smooth muscle cells shared the common feature of contraction in response to different stimuli. Agonist-induced muscle's contraction is triggered by a cytosolic free Ca2+ concentration increase due to a rapid Ca2+ release from intracellular stores and a transmembrane Ca2+ influx, mainly through L-type Ca2+ channels. Compelling evidences have demonstrated that Ca2+ might also enter through other cationic channels such as Store-Operated Ca2+ Channels (SOCCs), involved in several physiological functions and pathological conditions. The opening of SOCCs is regulated by the filling state of the intracellular Ca2+ store, the sarcoplasmic reticulum, which communicates to the plasma membrane channels through the Stromal Interaction Molecule 1/2 (STIM1/2) protein. In muscle cells, SOCCs can be mainly non-selective cation channels formed by Orai1 and other members of the Transient Receptor Potential-Canonical (TRPC) channels family, as well as highly selective Ca2+ Release-Activated Ca2+ (CRAC) channels, formed exclusively by subunits of Orai proteins likely organized in macromolecular complexes. This review summarizes the current knowledge of the complex role of Store Operated Calcium Entry (SOCE) pathways and related proteins in the function of cardiac, skeletal, and vascular smooth muscle cells.
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Affiliation(s)
- Javier Avila-Medina
- Department of Medical Physiology and Biophysics, University of Seville, Sevilla, Spain.,Institute of Biomedicine of Seville, University Hospital of Virgen del Rocío, CSIC, University of Seville, Sevilla, Spain.,CIBERCV, Madrid, Spain
| | | | - Alejandro Dominguez-Rodriguez
- Department of Medical Physiology and Biophysics, University of Seville, Sevilla, Spain.,Institute of Biomedicine of Seville, University Hospital of Virgen del Rocío, CSIC, University of Seville, Sevilla, Spain.,CIBERCV, Madrid, Spain
| | | | - Juan Ribas
- Department of Medical Physiology and Biophysics, University of Seville, Sevilla, Spain
| | - Antonio Ordoñez
- CIBERCV, Madrid, Spain.,Department of Surgery, University of Seville, Sevilla, Spain
| | - Juan A Rosado
- Cell Physiology Research Group, Department of Physiology, Institute of Molecular Pathology Biomarkers, University of Extremadura, Cáceres, Spain
| | - Tarik Smani
- Department of Medical Physiology and Biophysics, University of Seville, Sevilla, Spain.,Institute of Biomedicine of Seville, University Hospital of Virgen del Rocío, CSIC, University of Seville, Sevilla, Spain.,CIBERCV, Madrid, Spain
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61
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Liu B, Zhang B, Huang S, Yang L, Roos CM, Thompson MA, Prakash YS, Zang J, Miller JD, Guo R. Ca 2+ Entry Through Reverse Mode Na +/Ca 2+ Exchanger Contributes to Store Operated Channel-Mediated Neointima Formation After Arterial Injury. Can J Cardiol 2018; 34:791-799. [PMID: 29705161 DOI: 10.1016/j.cjca.2018.01.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 01/16/2018] [Accepted: 01/16/2018] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Na+/Ca2+ exchange (NCX) reversal-mediated Ca2+ entry is a critical pathway for stimulating proliferation in many cell lines. However, the role of reverse-mode NCX1 in neointima formation and atherosclerosis remains unclear. The aims of the present study were to investigate the functional role of NCX1 in the pathogenesis of atherosclerosis and vascular smooth muscle cell (VSMC) proliferation, and to determine the interaction between NCX1 and store depletion in VSMCs. METHODS A rat balloon injury model was established to examine the effect of the knockdown of NCX1 on neointima formation after injury. VSMCs were cultured to verify that NCX1 knockdown suppressed serum-induced VSMC proliferation. RESULTS The results showed that balloon injury induced neointima formation and upregulated NCX1 expression at 7 and 14 days after injury in rat carotid arteries (1.18- and 1.45-fold, respectively). A lentivirus vector expressing short hairpin (sh)RNA against rat NCX1 dramatically downregulated NCX1, proliferating cell nuclear antigen (PCNA) and Ki-67 expression, and suppressed neointima formation in vivo (62% at 7 days and 70% at 14 days). KB-R7943 (an inhibitor of reverse-mode NCX1) and NCX1 knockdown significantly inhibited serum-induced VSMC proliferation (65% at 72 hours and 41% at 72 hours, respectively), determined according to PCNA and Ki-67 expression and cell counting in vitro, and markedly suppressed store depletion-mediated Ca2+ entry and peripheral cytosolic Na+ transients in VSMCs. CONCLUSIONS Reverse-mode NCX1 is activated by store depletion and is required for proliferative VSMC proliferation and neointima formation after arterial injury.
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Affiliation(s)
- Bei Liu
- Department of Obstetrics and Gynecology, Kunming General Hospital, Kunming, Yunnan, China
| | - Bin Zhang
- Division of Cardiovascular Surgery, and Department of Physiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Shiliang Huang
- Department of Cardiology, Kunming General Hospital, Kunming, Yunnan, China
| | - Lixia Yang
- Department of Cardiology, Kunming General Hospital, Kunming, Yunnan, China
| | - Carolyn M Roos
- Division of Cardiovascular Surgery, and Department of Physiology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Y S Prakash
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Jie Zang
- Musculoskeletal Tumor Center, Peking University People's Hospital, Peking, China
| | - Jordan D Miller
- Division of Cardiovascular Surgery, and Department of Physiology, Mayo Clinic, Rochester, Minnesota, USA.
| | - Ruiwei Guo
- Department of Cardiology, Kunming General Hospital, Kunming, Yunnan, China.
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62
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Zhang B, Liu B, Roos CM, Thompson MA, Prakash YS, Miller JD, Guo RW. TRPC6 and TRPC4 Heteromultimerization Mediates Store Depletion-Activated NCX1 Reversal in Proliferative Vascular Smooth Muscle Cells. Channels (Austin) 2018; 12:119-125. [PMID: 29560783 PMCID: PMC5972809 DOI: 10.1080/19336950.2018.1451696] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Store depletion has been shown to induce Ca2+ entry by Na+/Ca+ exchange (NCX) 1 reversal in proliferative vascular smooth muscle cells (VSMCs). The study objective was to investigate the role of transient receptor potential canonical (TRPC) channels in store depletion and NCX1 reversal in proliferative VSMCs. In cultured VSMCs, expressing TRPC1, TRPC4, and TRPC6, the removal of extracellular Na+ was followed by a significant increase of cytosolic Ca2+ concentration that was inhibited by KBR, a selective NCX1 inhibitor. TRPC1 knockdown significantly suppressed store-operated, channel-mediated Ca2+ entry, but TRPC4 knockdown and TRPC6 knockdown had no effect. Separate knockdown of TRPC1, TRPC4, or TRPC6 did not have a significant effect on thapsigargin-initiated Na+ increase in the peripheral regions with KBR treatment, but knockdown of both TRPC4 and TRPC6 did. Stromal interaction molecule (STIM)1 knockdown significantly reduced TRPC4 and TRPC6 binding. The results demonstrated that TRPC4–TRPC6 heteromultimerization linked Ca2+ store depletion and STIM1 accumulation with NCX reversal in proliferative VSMCs.
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Affiliation(s)
- Bin Zhang
- a Division of Cardiovascular Surgery, Mayo Clinic, Rochester, MN, USA; and Department of Physiology , Mayo Clinic , Rochester , MN , USA
| | - Bei Liu
- b Department of Obstetrics and Gynecology , Kunming General Hospital of Chengdu Military Command , Kunming , Yunnan , China
| | - Carolyn M Roos
- a Division of Cardiovascular Surgery, Mayo Clinic, Rochester, MN, USA; and Department of Physiology , Mayo Clinic , Rochester , MN , USA
| | - Michael A Thompson
- c Department of Anesthesiology , Mayo Clinic , Rochester , Minnesota , USA
| | - Y S Prakash
- c Department of Anesthesiology , Mayo Clinic , Rochester , Minnesota , USA
| | - Jordan D Miller
- a Division of Cardiovascular Surgery, Mayo Clinic, Rochester, MN, USA; and Department of Physiology , Mayo Clinic , Rochester , MN , USA
| | - Rui-Wei Guo
- d Department of Cardiology , Kunming General Hospital of Chengdu Military Command , Kunming , Yunnan , China
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63
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Zhou JB, Sun YY, Zheng YL, Yu CQ, Lin HQ, Pang JY. A study on blocking store-operated Ca2+ entry in pulmonary arterial smooth muscle cells with xyloketals from marine fungi. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2017; 67:557-567. [PMID: 29337674 DOI: 10.1515/acph-2017-0032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/22/2017] [Indexed: 12/28/2022]
Abstract
In this study, the effect of four xyloketals 1-4 on store-operated calcium entry (SOCE) was investigated in primary distal pulmonary arterial smooth muscle cells (PASMCs) isolated from mice. The results showed that xyloketal A (1), an unusual ketal with C-3 symmetry, exhibited strong SOCE blocking activity. Secretion of interleukin-8 (IL-8) was also inhibited by xyloketal A. The parallel artificial membrane permeability assay (PAMPA) of 1-4 suggested that these xyloketals penetrated easily through the cell membrane. Moreover, the molecular docking study of xyloketal A with activation region of the stromal interaction molecule (STIM) 1 and the calcium release-activated calcium modulator (ORAI) 1 (STIM1-ORAI1) protein complex, the key domain of SOCE, revealed that xyloketal A exhibited a noncovalent interaction with the key residue lysine 363 (LYS363) in the identified cytosolic regions in STIM1-C. These findings provided useful information about xyloketal A as a SOCE inhibitor for further evaluation.
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Affiliation(s)
- Jie-Bin Zhou
- School of Chemistry Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Ying-Ying Sun
- Department of Guangdong Key Laboratory for New Pharmaceutical Dosage Forms GuangDong Pharmaceutical University, Guangzhou 510006, P. R. China
| | - Ying-Lin Zheng
- School of Chemistry Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Chu-Qin Yu
- Department of Guangdong Key Laboratory for New Pharmaceutical Dosage Forms GuangDong Pharmaceutical University, Guangzhou 510006, P. R. China
| | - Hua-Qing Lin
- Department of Guangdong Key Laboratory for New Pharmaceutical Dosage Forms GuangDong Pharmaceutical University, Guangzhou 510006, P. R. China
| | - Ji-Yan Pang
- School of Chemistry Sun Yat-Sen University, Guangzhou 510275, P. R. China
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64
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Simo-Cheyou ER, Tan JJ, Grygorczyk R, Srivastava AK. STIM-1 and ORAI-1 channel mediate angiotensin-II-induced expression of Egr-1 in vascular smooth muscle cells. J Cell Physiol 2017; 232:3496-3509. [PMID: 28105751 DOI: 10.1002/jcp.25810] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 01/18/2017] [Accepted: 01/18/2017] [Indexed: 12/21/2022]
Abstract
An upregulation of Egr-1 expression has been reported in models of atherosclerosis and intimal hyperplasia and, various vasoactive peptides and growth promoting stimuli have been shown to induce the expression of Egr-1 in vascular smooth muscle cells (VSMC). Angiotensin-II (Ang-II) is a key vasoactive peptide that has been implicated in the pathogenesis of vascular diseases. Ang-II elevates intracellular Ca2+ through activation of the store-operated calcium entry (SOCE) involving an inositol-3-phosphate receptor (IP3R)-coupled depletion of endoplasmic reticular Ca2+ and a subsequent activation of the stromal interaction molecule 1 (STIM-1)/Orai-1 complex. However, the involvement of IP3R/STIM-1/Orai-1-Ca2+ -dependent signaling in Egr-1 expression in VSMC remains unexplored. Therefore, in the present studies, we have examined the role of Ca2+ signaling in Ang-II-induced Egr-1 expression in VSMC and investigated the contribution of STIM-1 or Orai-1 in mediating this response. 2-aminoethoxydiphenyl borate (2-APB), a dual non-competitive antagonist of IP3R and inhibitor of SOCE, decreased Ang-II-induced Ca2+ release and attenuated Ang-II-induced enhanced expression of Egr-1 protein and mRNA levels. Egr-1 upregulation was also suppressed following blockade of calmodulin and CaMKII. Furthermore, RNA interference-mediated depletion of STIM-1 or Orai-1 attenuated Ang-II-induced Egr-1 expression as well as Ang-II-induced phosphorylation of ERK1/2 and CREB. In addition, siRNA-induced silencing of CREB resulted in a reduction in the expression of Egr-1 stimulated by Ang-II. In summary, our data demonstrate that Ang-II-induced Egr-1 expression is mediated by STIM-1/Orai-1/Ca2+ -dependent signaling pathways in A-10 VSMC.
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MESH Headings
- Angiotensin II/pharmacology
- Animals
- Calcium Channel Blockers/pharmacology
- Calcium Signaling/drug effects
- Calcium-Calmodulin-Dependent Protein Kinase Type 2/antagonists & inhibitors
- Calcium-Calmodulin-Dependent Protein Kinase Type 2/metabolism
- Calmodulin/antagonists & inhibitors
- Calmodulin/metabolism
- Cell Line
- Cyclic AMP Response Element-Binding Protein/metabolism
- Dose-Response Relationship, Drug
- Early Growth Response Protein 1/genetics
- Early Growth Response Protein 1/metabolism
- Extracellular Signal-Regulated MAP Kinases/metabolism
- Inositol 1,4,5-Trisphosphate Receptors/antagonists & inhibitors
- Inositol 1,4,5-Trisphosphate Receptors/metabolism
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- ORAI1 Protein/genetics
- ORAI1 Protein/metabolism
- Phosphorylation
- Protein Kinase Inhibitors/pharmacology
- RNA Interference
- Rats
- Stromal Interaction Molecule 1/genetics
- Stromal Interaction Molecule 1/metabolism
- Time Factors
- Transfection
- Up-Regulation
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Affiliation(s)
- Estelle R Simo-Cheyou
- Laboratory of Cellular Signaling, Montreal Diabetes Research Center, Quebec, Canada
- CHUM-Research Center (CRCHUM), Quebec, Canada
- Faculty of Medicine, Department of Nutrition, University of Montreal, Quebec, Canada
| | - Ju Jing Tan
- CHUM-Research Center (CRCHUM), Quebec, Canada
| | - Ryszard Grygorczyk
- CHUM-Research Center (CRCHUM), Quebec, Canada
- Faculty of Medicine, Department of Medicine, University of Montreal, Quebec, Canada
| | - Ashok K Srivastava
- Laboratory of Cellular Signaling, Montreal Diabetes Research Center, Quebec, Canada
- CHUM-Research Center (CRCHUM), Quebec, Canada
- Faculty of Medicine, Department of Nutrition, University of Montreal, Quebec, Canada
- Faculty of Medicine, Department of Medicine, University of Montreal, Quebec, Canada
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65
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Mound A, Vautrin-Glabik A, Foulon A, Botia B, Hague F, Parys JB, Ouadid-Ahidouch H, Rodat-Despoix L. Downregulation of type 3 inositol (1,4,5)-trisphosphate receptor decreases breast cancer cell migration through an oscillatory Ca 2+ signal. Oncotarget 2017; 8:72324-72341. [PMID: 29069790 PMCID: PMC5641133 DOI: 10.18632/oncotarget.20327] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 08/04/2017] [Indexed: 01/02/2023] Open
Abstract
Breast cancer remains a research priority due to its invasive phenotype. Although the role of ion channels in cancer is now well established, the role of inositol (1,4,5)-trisphosphate (IP3) receptors (IP3Rs) remains enigmatic. If the three IP3Rs subtypes expression have been identified in various cancers, little is known about their physiological role. Here, we investigated the involvement of IP3R type 3 (IP3R3) in the migration processes of three human breast cancer cell lines showing different migration velocities: the low-migrating MCF-7 and the highly migrating and invasive MDA-MB-231 and MDA-MB-435S cell lines. We show that a higher IP3R3 expression level, but not IP3R1 nor IP3R2, is correlated to a stronger cell line migration capacity and a sustained calcium signal. Interestingly, silencing of IP3R3 highlights an oscillating calcium signaling profile and leads to a significant decrease of cell migration capacities of the three breast cancer cell lines. Conversely, stable overexpression of IP3R3 in MCF-7 cells significantly increases their migration capacities. This effect is completely reversed by IP3R3 silencing. In conclusion, we demonstrate that IP3R3 expression level increases the migration capacity of human breast cancer cells by changing the calcium signature.
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Affiliation(s)
- Abdallah Mound
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
| | - Alexia Vautrin-Glabik
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
| | - Arthur Foulon
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
| | - Béatrice Botia
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
| | - Frédéric Hague
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
| | - Jan B Parys
- Laboratory of Molecular and Cellular Signalling, Department of Cellular and Molecular Medicine, Campus Gasthuisberg O/N1- bus 802-K U Leuven, B-3000 Leuven, Belgium
| | - Halima Ouadid-Ahidouch
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
| | - Lise Rodat-Despoix
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
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66
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Chen YC, Chang YC, Chang HA, Lin YS, Tsao CW, Shen MR, Chiu WT. Differential Ca 2+ mobilization and mast cell degranulation by FcεRI- and GPCR-mediated signaling. Cell Calcium 2017; 67:31-39. [PMID: 29029788 DOI: 10.1016/j.ceca.2017.08.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 08/03/2017] [Accepted: 08/03/2017] [Indexed: 12/11/2022]
Abstract
Mast cells play a primary role in allergic diseases. During an allergic reaction, mast cell activation is initiated by cross-linking IgE-FcεRI complex by multivalent antigen resulting in degranulation. Additionally, G protein-coupled receptors also induce degranulation upon activation. However, the spatio-temporal relationship between Ca2+ mobilization and mast cell degranulation is not well understood. We investigated the relationship between oscillations in Ca2+ level and mast cell degranulation upon stimulation in rat RBL-2H3 cells. Nile red and Fluo-4 were used as probes for monitoring histamine and intracellular Ca2+ levels, respectively. Histamine release and Ca2+ oscillations in real-time were monitored using total internal reflection fluorescence microscopy (TIRFM). Mast cell degranulation followed immediately after FcεRI and GPCR-mediated Ca2+ increase. FcεRI-induced Ca2+ increase was higher and more sustained than that induced by GPCRs. However, no significant difference in mast cell degranulation rates was observed. Although intracellular Ca2+ release was both necessary and sufficient for mast cell degranulation, extracellular Ca2+ influx enhanced the process. Furthermore, cytosolic Ca2+ levels and mast cell degranulation were significantly decreased by downregulation of store-operated Ca2+ entry (SOCE) via Orai1 knockdown, 2-aminoethyl diphenylborinate (2-APB) or tubastatin A (TSA) treatment. Collectively, this study has demonstrated the role of Ca2+ signaling in regulating histamine degranulation.
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Affiliation(s)
- Ying-Chi Chen
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan
| | - Yu-Chung Chang
- 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
| | - Yu-Shan Lin
- Institute of Basic Medical Sciences, National Cheng Kung University, Tainan 701, Taiwan
| | - Chiung-Wen Tsao
- Department of Nursing, Chung Hwa University of Medical Technology, Tainan 717, Taiwan
| | - Meng-Ru Shen
- Institute of Basic Medical Sciences, National Cheng Kung University, Tainan 701, Taiwan; Department of Pharmacology, 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; Medical Device Innovation Center, National Cheng Kung University, Tainan 701, Taiwan.
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67
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Jia S, Rodriguez M, Williams AG, Yuan JP. Homer binds to Orai1 and TRPC channels in the neointima and regulates vascular smooth muscle cell migration and proliferation. Sci Rep 2017; 7:5075. [PMID: 28698564 PMCID: PMC5506012 DOI: 10.1038/s41598-017-04747-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 05/22/2017] [Indexed: 11/25/2022] Open
Abstract
The molecular components of store-operated Ca2+ influx channels (SOCs) in proliferative and migratory vascular smooth muscle cells (VSMCs) are quite intricate with many channels contributing to SOCs. They include the Ca2+-selective Orai1 and members of the transient receptor potential canonical (TRPC) channels, which are activated by the endoplasmic reticulum Ca2+ sensor STIM1. The scaffolding protein Homer assembles SOC complexes, but its role in VSMCs is not well understood. Here, we asked whether these SOC components and Homer1 are present in the same complex in VSMCs and how Homer1 contributes to VSMC SOCs, proliferation, and migration leading to neointima formation. Homer1 expression levels are upregulated in balloon-injured vs. uninjured VSMCs. Coimmunoprecipitation assays revealed the presence and interaction of all SOC components in the injured VSMCs, where Homer1 interacts with Orai1 and various TRPC channels. Accordingly, knockdown of Homer1 in cultured VSMCs partially inhibited SOCs, VSMC migration, and VSMC proliferation. Neointimal area was reduced after treatment with an adeno-associated viral vector expressing a short hairpin RNA against Homer1 mRNA (AAV-shHomer1). These findings stress the role of multiple Ca2+ influx channels in VSMCs and are the first to show the role of Homer proteins in VSMCs and its importance in neointima formation.
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Affiliation(s)
- Shuping Jia
- Institute for Cardiovascular & Metabolic Diseases, University of North Texas Health Sciences Center, Fort Worth, TX, 76107, USA
| | - Miguel Rodriguez
- Institute for Cardiovascular & Metabolic Diseases, University of North Texas Health Sciences Center, Fort Worth, TX, 76107, USA
| | - Arthur G Williams
- Institute for Cardiovascular & Metabolic Diseases, University of North Texas Health Sciences Center, Fort Worth, TX, 76107, USA
| | - Joseph P Yuan
- Institute for Cardiovascular & Metabolic Diseases, University of North Texas Health Sciences Center, Fort Worth, TX, 76107, USA.
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68
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Orai3 channel is the 2-APB-induced endoplasmic reticulum calcium leak. Cell Calcium 2017; 65:91-101. [DOI: 10.1016/j.ceca.2017.01.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 01/17/2017] [Accepted: 01/20/2017] [Indexed: 12/22/2022]
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69
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Simo-Cheyou ER, Youreva V, Srivastava AK. cAMP attenuates angiotensin-II-induced Egr-1 expression via PKA-dependent signaling pathway in vascular smooth muscle cells. Can J Physiol Pharmacol 2017; 95:928-937. [PMID: 28460186 DOI: 10.1139/cjpp-2017-0035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
cAMP has been shown to inhibit vascular smooth muscle cell proliferation and exerts a vasculoprotective effect. An upregulation of the early growth response protein-1 (Egr-1) expression has been linked with the development of atherosclerosis and intimal hyperplasia. We have recently demonstrated that angiotensin-II (Ang-II) stimulates Egr-1 expression via Ca2+/ERK-mediated cAMP-response element binding protein (CREB) activation. However, whether Ang-II-induced signaling leading to Egr-1 expression is modulated by cAMP remains unexplored. Therefore, in the present studies, we have examined the effect of cAMP on Ang-II-induced expression of Egr-1 and associated signaling pathways. Isoproterenol (ISO) and forskolin (FSK) attenuated Ang-II-induced Egr-1 expression in a dose-dependent fashion. In addition, dibutyryl-cAMP and benzoyl-cAMP, as well as isobutylmethylxanthine, attenuated Ang-II-induced Egr-1 expression. Moreover, inhibition of Ang-II-induced Egr-1 expression was accompanied by an increase in the phosphorylation of the vasodilator-activated phosphoprotein (VASP), and this was associated with a concomitant decrease in ERK phosphorylation. Blockade of PKA using H89 decreased VASP phosphorylation, restored Ang-II-induced ERK phosphorylation, and abolished ISO- and FSK-mediated inhibition of Ang-II-induced Egr-1 expression. In summary, these results suggest that PKA-mediated suppression of Ang-II-induced Egr-1 expression and phosphorylation of ERK may be among the mechanisms by which cAMP exerts its vasculoprotective effects.
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Affiliation(s)
- Estelle R Simo-Cheyou
- a Laboratory of Cellular Signaling, Montreal Diabetes Research Center and Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), 900 Rue St-Denis, Montreal, QC H2X 0A9, Canada.,b Department of Nutrition, Faculty of Medicine, University of Montreal, C.P. 6128, Succursale centre-ville, Montreal, QC H3C 3J7, Canada
| | - Viktoria Youreva
- a Laboratory of Cellular Signaling, Montreal Diabetes Research Center and Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), 900 Rue St-Denis, Montreal, QC H2X 0A9, Canada
| | - Ashok K Srivastava
- a Laboratory of Cellular Signaling, Montreal Diabetes Research Center and Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), 900 Rue St-Denis, Montreal, QC H2X 0A9, Canada.,b Department of Nutrition, Faculty of Medicine, University of Montreal, C.P. 6128, Succursale centre-ville, Montreal, QC H3C 3J7, Canada.,c Department of Medicine, Faculty of Medicine, University of Montreal, C.P. 6128, Succursale centre-ville, Montreal, QC H3C 3J7, Canada
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70
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Tykocki NR, Boerman EM, Jackson WF. Smooth Muscle Ion Channels and Regulation of Vascular Tone in Resistance Arteries and Arterioles. Compr Physiol 2017; 7:485-581. [PMID: 28333380 DOI: 10.1002/cphy.c160011] [Citation(s) in RCA: 222] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Vascular tone of resistance arteries and arterioles determines peripheral vascular resistance, contributing to the regulation of blood pressure and blood flow to, and within the body's tissues and organs. Ion channels in the plasma membrane and endoplasmic reticulum of vascular smooth muscle cells (SMCs) in these blood vessels importantly contribute to the regulation of intracellular Ca2+ concentration, the primary determinant of SMC contractile activity and vascular tone. Ion channels provide the main source of activator Ca2+ that determines vascular tone, and strongly contribute to setting and regulating membrane potential, which, in turn, regulates the open-state-probability of voltage gated Ca2+ channels (VGCCs), the primary source of Ca2+ in resistance artery and arteriolar SMCs. Ion channel function is also modulated by vasoconstrictors and vasodilators, contributing to all aspects of the regulation of vascular tone. This review will focus on the physiology of VGCCs, voltage-gated K+ (KV) channels, large-conductance Ca2+-activated K+ (BKCa) channels, strong-inward-rectifier K+ (KIR) channels, ATP-sensitive K+ (KATP) channels, ryanodine receptors (RyRs), inositol 1,4,5-trisphosphate receptors (IP3Rs), and a variety of transient receptor potential (TRP) channels that contribute to pressure-induced myogenic tone in resistance arteries and arterioles, the modulation of the function of these ion channels by vasoconstrictors and vasodilators, their role in the functional regulation of tissue blood flow and their dysfunction in diseases such as hypertension, obesity, and diabetes. © 2017 American Physiological Society. Compr Physiol 7:485-581, 2017.
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Affiliation(s)
- Nathan R Tykocki
- Department of Pharmacology, University of Vermont, Burlington, Vermont, USA
| | - Erika M Boerman
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri, USA
| | - William F Jackson
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, Michigan, USA
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71
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Shi J, Miralles F, Kinet JP, Birnbaumer L, Large WA, Albert AP. Evidence that Orai1 does not contribute to store-operated TRPC1 channels in vascular smooth muscle cells. Channels (Austin) 2017; 11:329-339. [PMID: 28301277 PMCID: PMC5555289 DOI: 10.1080/19336950.2017.1303025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Ca2+-permeable store-operated channels (SOCs) mediate Ca2+ entry pathways which are involved in many cellular functions such as contraction, growth, and proliferation. Prototypical SOCs are formed of Orai1 proteins and are activated by the endo/sarcoplasmic reticulum Ca2+ sensor stromal interaction molecule 1 (STIM1). There is considerable debate about whether canonical transient receptor potential 1 (TRPC1) proteins also form store-operated channels (SOCs), and if they do, is Orai1 involved. We recently showed that stimulation of TRPC1-based SOCs involves store depletion inducing STIM1-evoked Gαq/PLCβ1 activity in contractile vascular smooth muscle cells (VSMCs). Therefore the present work investigates the role of Orai1 in activation of TRPC1-based SOCs in freshly isolated mesenteric artery VSMCs from wild-type (WT) and Orai1−/− mice. Store-operated whole-cell and single channel currents recorded from WT and Orai1−/− VSMCs had similar properties, with relatively linear current-voltage relationships, reversal potentials of about +20mV, unitary conductances of about 2pS, and inhibition by anti-TRPC1 and anti-STIM1 antibodies. In Orai1−/− VSMCs, store depletion induced PLCβ1 activity measured with the fluorescent phosphatidylinositol 4,5-bisphosphate/inositol 1,4,5-trisphosphate biosensor GFP-PLCδ1-PH, which was prevented by knockdown of STIM1. In addition, in Orai1−/− VSMCs, store depletion induced translocation of STIM1 from within the cell to the plasma membrane where it formed STIM1-TRPC1 interactions at discrete puncta-like sites. These findings indicate that activation of TRPC1-based SOCs through a STIM1-activated PLCβ1 pathway are likely to occur independently of Orai1 proteins, providing evidence that TRPC1 channels form genuine SOCs in VSMCs with a contractile phenotype.
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Affiliation(s)
- Jian Shi
- a Institute of Cardiovascular & Metabolic Medicine, School of Medicine , University of Leeds , Leeds , UK
| | - Francesc Miralles
- b Vascular Biology Research Centre, Institute of Molecular & Clinical Sciences Research Institute , St. George's, University of London , Cranmer Terrace, London , UK.,c Institute of Medical & Biomedical Education, St. George's , University of London , Cranmer Terrace, London , UK
| | - Jean-Pierre Kinet
- d Laboratory of Allergy and Immunology, Department of Pathology, Beth Israel Deaconess Medical Center , Harvard Medical School , Boston , MA , USA
| | - Lutz Birnbaumer
- e Laboratory of Neurobiology , National Institute of Environmental Health Sciences , Research Triangle Park, NC , USA.,f Institute of Biomedical Research (BIOMED) , Catholic University of Argentina , Buenos Aires , Argentina
| | - William A Large
- b Vascular Biology Research Centre, Institute of Molecular & Clinical Sciences Research Institute , St. George's, University of London , Cranmer Terrace, London , UK
| | - Anthony P Albert
- b Vascular Biology Research Centre, Institute of Molecular & Clinical Sciences Research Institute , St. George's, University of London , Cranmer Terrace, London , UK
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72
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Vaeth M, Yang J, Yamashita M, Zee I, Eckstein M, Knosp C, Kaufmann U, Karoly Jani P, Lacruz RS, Flockerzi V, Kacskovics I, Prakriya M, Feske S. ORAI2 modulates store-operated calcium entry and T cell-mediated immunity. Nat Commun 2017; 8:14714. [PMID: 28294127 PMCID: PMC5355949 DOI: 10.1038/ncomms14714] [Citation(s) in RCA: 147] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 01/25/2017] [Indexed: 12/11/2022] Open
Abstract
Store-operated Ca2+ entry (SOCE) through Ca2+ release-activated Ca2+ (CRAC) channels is critical for lymphocyte function and immune responses. CRAC channels are hexamers of ORAI proteins that form the channel pore, but the contributions of individual ORAI homologues to CRAC channel function are not well understood. Here we show that deletion of Orai1 reduces, whereas deletion of Orai2 increases, SOCE in mouse T cells. These distinct effects are due to the ability of ORAI2 to form heteromeric channels with ORAI1 and to attenuate CRAC channel function. The combined deletion of Orai1 and Orai2 abolishes SOCE and strongly impairs T cell function. In vivo, Orai1/Orai2 double-deficient mice have impaired T cell-dependent antiviral immune responses, and are protected from T cell-mediated autoimmunity and alloimmunity in models of colitis and graft-versus-host disease. Our study demonstrates that ORAI1 and ORAI2 form heteromeric CRAC channels, in which ORAI2 fine-tunes the magnitude of SOCE to modulate immune responses.
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Affiliation(s)
- Martin Vaeth
- Experimental Pathology Program, Department of Pathology, New York University School of Medicine, 550 First Avenue, Smilow 316, New York, New York 10016, USA
| | - Jun Yang
- Experimental Pathology Program, Department of Pathology, New York University School of Medicine, 550 First Avenue, Smilow 316, New York, New York 10016, USA
| | - Megumi Yamashita
- Department of Pharmacology, Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611, USA
| | - Isabelle Zee
- Experimental Pathology Program, Department of Pathology, New York University School of Medicine, 550 First Avenue, Smilow 316, New York, New York 10016, USA
| | - Miriam Eckstein
- NYU College of Dentistry, New York University, New York, New York 10010, USA
| | - Camille Knosp
- Experimental Pathology Program, Department of Pathology, New York University School of Medicine, 550 First Avenue, Smilow 316, New York, New York 10016, USA
| | - Ulrike Kaufmann
- Experimental Pathology Program, Department of Pathology, New York University School of Medicine, 550 First Avenue, Smilow 316, New York, New York 10016, USA
| | | | - Rodrigo S. Lacruz
- NYU College of Dentistry, New York University, New York, New York 10010, USA
| | - Veit Flockerzi
- Experimental and Clinical Pharmacology and Toxicology, School of Medicine, Saarland University, Homburg 66421, Germany
| | | | - Murali Prakriya
- Department of Pharmacology, Northwestern University, Feinberg School of Medicine, Chicago, Illinois 60611, USA
| | - Stefan Feske
- Experimental Pathology Program, Department of Pathology, New York University School of Medicine, 550 First Avenue, Smilow 316, New York, New York 10016, USA
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The role of STIM1 and SOCE in smooth muscle contractility. Cell Calcium 2017; 63:60-65. [PMID: 28372809 DOI: 10.1016/j.ceca.2017.02.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 02/13/2017] [Accepted: 02/13/2017] [Indexed: 11/20/2022]
Abstract
Contraction is a central feature for skeletal, cardiac and smooth muscle; this unique feature is largely dependent on calcium (Ca2+) signaling and therefore maintenance of internal Ca2+ stores. Stromal interaction molecule 1 (STIM1) is a single-pass transmembrane protein that functions as a Ca2+ sensor for the activation store-operated calcium channels (SOCCs) on the plasma membrane in response to depleted internal sarco(endo)plasmic (S/ER) reticulum Ca2+ stores. STIM1 was initially characterized in non-excitable cells; however, evidence from both animal models and human mutations suggests a role for STIM1 in modulating Ca2+ homeostasis in excitable tissues as well. STIM1-dependent SOCE is particularly important in tissues undergoing sustained contraction, leading us to believe STIM1 may play a role in smooth muscle contraction. To date, the role of STIM1 in smooth muscle is unknown. In this review, we provide a brief overview of the role of STIM1-dependent SOCE in striated muscle and build off that knowledge to investigate whether STIM1 contributes to smooth muscle contractility. We conclude by discussing the translational implications of targeting STIM1 in the treatment of smooth muscle disorders.
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Ben-Kasus Nissim T, Zhang X, Elazar A, Roy S, Stolwijk JA, Zhou Y, Motiani RK, Gueguinou M, Hempel N, Hershfinkel M, Gill DL, Trebak M, Sekler I. Mitochondria control store-operated Ca 2+ entry through Na + and redox signals. EMBO J 2017; 36:797-815. [PMID: 28219928 DOI: 10.15252/embj.201592481] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 12/25/2016] [Accepted: 01/05/2017] [Indexed: 02/05/2023] Open
Abstract
Mitochondria exert important control over plasma membrane (PM) Orai1 channels mediating store-operated Ca2+ entry (SOCE). Although the sensing of endoplasmic reticulum (ER) Ca2+ stores by STIM proteins and coupling to Orai1 channels is well understood, how mitochondria communicate with Orai1 channels to regulate SOCE activation remains elusive. Here, we reveal that SOCE is accompanied by a rise in cytosolic Na+ that is critical in activating the mitochondrial Na+/Ca2+ exchanger (NCLX) causing enhanced mitochondrial Na+ uptake and Ca2+ efflux. Omission of extracellular Na+ prevents the cytosolic Na+ rise, inhibits NCLX activity, and impairs SOCE and Orai1 channel current. We show further that SOCE activates a mitochondrial redox transient which is dependent on NCLX and is required for preventing Orai1 inactivation through oxidation of a critical cysteine (Cys195) in the third transmembrane helix of Orai1. We show that mitochondrial targeting of catalase is sufficient to rescue redox transients, SOCE, and Orai1 currents in NCLX-deficient cells. Our findings identify a hitherto unknown NCLX-mediated pathway that coordinates Na+ and Ca2+ signals to effect mitochondrial redox control over SOCE.
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Affiliation(s)
- Tsipi Ben-Kasus Nissim
- The Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Xuexin Zhang
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Assaf Elazar
- The Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Soumitra Roy
- The Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Judith A Stolwijk
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Yandong Zhou
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Rajender K Motiani
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Maxime Gueguinou
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Nadine Hempel
- Department of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Michal Hershfinkel
- The Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Donald L Gill
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Israel Sekler
- The Department of Physiology and Cell Biology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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Shi J, Miralles F, Birnbaumer L, Large WA, Albert AP. Store-operated interactions between plasmalemmal STIM1 and TRPC1 proteins stimulate PLCβ1 to induce TRPC1 channel activation in vascular smooth muscle cells. J Physiol 2017; 595:1039-1058. [PMID: 27753095 PMCID: PMC5309361 DOI: 10.1113/jp273302] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 10/13/2016] [Indexed: 11/08/2022] Open
Abstract
KEY POINTS Depletion of Ca2+ stores activates store-operated channels (SOCs), which mediate Ca2+ entry pathways that regulate cellular processes such as contraction, proliferation and gene expression. In vascular smooth muscle cells (VSMCs), stimulation of SOCs composed of canonical transient receptor potential channel 1 (TRPC1) proteins requires G protein α q subunit (Gαq)/phospholipase C (PLC)β1/protein kinase C (PKC) activity. We studied the role of stromal interaction molecule 1 (STIM1) in coupling store depletion to this activation pathway using patch clamp recording, GFP-PLCδ1-PH imaging and co-localization techniques. Store-operated TRPC1 channel and PLCβ1 activities were inhibited by STIM1 short hairpin RNA (shRNA) and absent in TRPC1-/- cells, and store-operated PKC phosphorylation of TRPC1 was inhibited by STIM1 shRNA. Store depletion induced interactions between STIM1 and TRPC1, Gαq and PLCβ1, which required STIM1 and TRPC1. Similar effects were produced with noradrenaline. These findings identify a new activation mechanism of TRPC1-based SOCs in VSMCs, and a novel role for STIM1, where store-operated STIM1-TRPC1 interactions stimulate Gαq/PLCβ1/PKC activity to induce channel gating. ABSTRACT In vascular smooth muscle cells (VSMCs), stimulation of canonical transient receptor potential channel 1 (TRPC1) protein-based store-operated channels (SOCs) mediates Ca2+ entry pathways that regulate contractility, proliferation and migration. It is therefore important to understand how these channels are activated. Studies have shown that stimulation of TRPC1-based SOCs requires G protein α q subunit (Gαq)/phospholipase C (PLC)β1 activities and protein kinase C (PKC) phosphorylation, although it is unclear how store depletion stimulates this gating pathway. The present study examines this issue by focusing on the role of stromal interaction molecule 1 (STIM1), an endo/sarcoplasmic reticulum Ca2+ sensor. Store-operated TRPC1 channel activity was inhibited by TRPC1 and STIM1 antibodies and STIM1 short hairpin RNA (shRNA) in wild-type VSMCs, and was absent in TRPC1-/- VSMCs. Store-operated PKC phosphorylation of TRPC1 was reduced by knockdown of STIM1. Moreover, store-operated PLCβ1 activity measured with the fluorescent phosphatidylinositol 4,5-bisphosphate/inositol 1,4,5-trisphosphate biosensor GFP-PLCδ1-PH was reduced by STIM1 shRNA and absent in TRPC1-/- cells. Immunocytochemistry, co-immunoprecipitation and proximity ligation assays revealed that store depletion activated STIM1 translocation from within the cell to the plasma membrane (PM) where it formed STIM1-TRPC1 complexes, which then associated with Gαq and PLCβ1. Noradrenaline also evoked TRPC1 channel activity and associations between TRPC1, STIM1, Gαq and PLCβ1, which were inhibited by STIM1 knockdown. Effects of N-terminal and C-terminal STIM1 antibodies on TRPC1-based SOCs and STIM1 staining suggest that channel activation may involve insertion of STIM1 into the PM. The findings of the present study identify a new activation mechanism of TRPC1-based SOCs in VSMCs, and a novel role for STIM1, in which store-operated STIM1-TRPC1 interactions stimulate PLCβ1 activity to induce PKC phosphorylation of TRPC1 and channel gating.
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Affiliation(s)
- Jian Shi
- Vascular Biology Research CentreMolecular & Clinical Sciences Research Institute
| | - Francesc Miralles
- Vascular Biology Research CentreMolecular & Clinical Sciences Research Institute
- Institute of Medical & Biomedical EducationSt George'sUniversity of LondonLondonUK
| | - Lutz Birnbaumer
- Neurobiology LaboratoryNational Institute of Environmental Health SciencesResearch Triangle ParkNCUSA
- Institute of Biomedical Research (BIOMED)School of Medical SciencesCatholic University of ArgentinaBuenos AiresArgentina
| | - William A. Large
- Vascular Biology Research CentreMolecular & Clinical Sciences Research Institute
| | - Anthony P. Albert
- Vascular Biology Research CentreMolecular & Clinical Sciences Research Institute
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76
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Tanwar J, Trebak M, Motiani RK. Cardiovascular and Hemostatic Disorders: Role of STIM and Orai Proteins in Vascular Disorders. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 993:425-452. [PMID: 28900927 DOI: 10.1007/978-3-319-57732-6_22] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Store-operated Ca2+ entry (SOCE) mediated by STIM and Orai proteins is a highly regulated and ubiquitous signaling pathway that plays an important role in various cellular and physiological functions. Endoplasmic reticulum (ER) serves as the major site for intracellular Ca2+ storage. Stromal Interaction Molecule 1/2 (STIM1/2) sense decrease in ER Ca2+ levels and transmits the message to plasma membrane Ca2+ channels constituted by Orai family members (Orai1/2/3) resulting in Ca2+ influx into the cells. This increase in cytosolic Ca2+ in turn activates a variety of signaling cascades to regulate a plethora of cellular functions. Evidence from the literature suggests that SOCE dysregulation is associated with several pathophysiologies, including vascular disorders. Interestingly, recent studies have suggested that STIM proteins may also regulate vascular functions independent of their contribution to SOCE. In this updated book chapter, we will focus on the physiological role of STIM and Orai proteins in the vasculature (endothelial cells and vascular smooth muscle cells). We will further retrospect the literature implicating a critical role for these proteins in vascular disease.
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Affiliation(s)
- Jyoti Tanwar
- Systems Biology Group, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi, 110020, India
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA.
| | - Rajender K Motiani
- Systems Biology Group, CSIR-Institute of Genomics and Integrative Biology, Mathura Road, New Delhi, 110020, India.
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77
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Groschner K, Shrestha N, Fameli N. Cardiovascular and Hemostatic Disorders: SOCE in Cardiovascular Cells: Emerging Targets for Therapeutic Intervention. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 993:473-503. [PMID: 28900929 DOI: 10.1007/978-3-319-57732-6_24] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The discovery of the store-operated Ca2+ entry (SOCE) phenomenon is tightly associated with its recognition as a pathway of high (patho)physiological significance in the cardiovascular system. Early on, SOCE has been investigated primarily in non-excitable cell types, and the vascular endothelium received particular attention, while a role of SOCE in excitable cells, specifically cardiac myocytes and pacemakers, was initially ignored and remains largely enigmatic even to date. With the recent gain in knowledge on the molecular components of SOCE as well as their cellular organization within nanodomains, potential tissue/cell type-dependent heterogeneity of the SOCE machinery along with high specificity of linkage to downstream signaling pathways emerged for cardiovascular cells. The basis of precise decoding of cellular Ca2+ signals was recently uncovered to involve correct spatiotemporal organization of signaling components, and even minor disturbances in these assemblies trigger cardiovascular pathologies. With this chapter, we wish to provide an overview on current concepts of cellular organization of SOCE signaling complexes in cardiovascular cells with particular focus on the spatiotemporal aspects of coupling to downstream signaling and the potential disturbance of these mechanisms by pathogenic factors. The significance of these mechanistic concepts for the development of novel therapeutic strategies will be discussed.
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Affiliation(s)
- Klaus Groschner
- Institute of Biophysics, Medical University of Graz, Neue Stiftingtalstrasse 6/4, 8010, Graz, Austria.
| | - Niroj Shrestha
- Institute of Biophysics, Medical University of Graz, Neue Stiftingtalstrasse 6/4, 8010, Graz, Austria
| | - Nicola Fameli
- Institute of Biophysics, Medical University of Graz, Neue Stiftingtalstrasse 6/4, 8010, Graz, Austria
- Department of Anesthesiology, Pharmacology, and Therapeutics, University of British Columbia, Vancouver, BC, Canada
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78
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Malli R, Graier WF. The Role of Mitochondria in the Activation/Maintenance of SOCE: The Contribution of Mitochondrial Ca 2+ Uptake, Mitochondrial Motility, and Location to Store-Operated Ca 2+ Entry. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 993:297-319. [PMID: 28900921 DOI: 10.1007/978-3-319-57732-6_16] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In most cell types, the depletion of internal Ca2+ stores triggers the activation of Ca2+ entry. This crucial phenomenon is known since the 1980s and referred to as store-operated Ca2+ entry (SOCE). With the discoveries of the stromal-interacting molecules (STIMs) and the Ca2+-permeable Orai channels as the long-awaited molecular constituents of SOCE, the role of mitochondria in controlling the activity of this particular Ca2+ entry pathway is kind of buried in oblivion. However, the capability of mitochondria to locally sequester Ca2+ at sites of Ca2+ release and entry was initially supposed to rule SOCE by facilitating the Ca2+ depletion of the endoplasmic reticulum and removing entering Ca2+ from the Ca2+-inhibitable channels, respectively. Moreover, the central role of these organelles in controlling the cellular energy metabolism has been linked to the activity of SOCE. Nevertheless, the exact molecular mechanisms by which mitochondria actually determine SOCE are still pretty obscure. In this essay we describe the complexity of the mitochondrial Ca2+ uptake machinery and its regulation, molecular components, and properties, which open new ways for scrutinizing the contribution of mitochondria to SOCE. Moreover, data concerning the variability of the morphology and cellular distribution of mitochondria as putative determinants of SOCE activation, maintenance, and termination are summarized.
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Affiliation(s)
- Roland Malli
- Institute of Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/6, 8010, Graz, Austria
| | - Wolfgang F Graier
- Institute of Molecular Biology and Biochemistry, Medical University of Graz, Neue Stiftingtalstrasse 6/6, 8010, Graz, Austria.
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79
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Pathophysiological Significance of Store-Operated Calcium Entry in Megakaryocyte Function: Opening New Paths for Understanding the Role of Calcium in Thrombopoiesis. Int J Mol Sci 2016; 17:ijms17122055. [PMID: 27941645 PMCID: PMC5187855 DOI: 10.3390/ijms17122055] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 11/28/2016] [Accepted: 11/28/2016] [Indexed: 12/16/2022] Open
Abstract
Store-Operated Calcium Entry (SOCE) is a universal calcium (Ca2+) influx mechanism expressed by several different cell types. It is now known that Stromal Interaction Molecule (STIM), the Ca2+ sensor of the intracellular compartments, together with Orai and Transient Receptor Potential Canonical (TRPC), the subunits of Ca2+ permeable channels on the plasma membrane, cooperate in regulating multiple cellular functions as diverse as proliferation, differentiation, migration, gene expression, and many others, depending on the cell type. In particular, a growing body of evidences suggests that a tight control of SOCE expression and function is achieved by megakaryocytes along their route from hematopoietic stem cells to platelet production. This review attempts to provide an overview about the SOCE dynamics in megakaryocyte development, with a focus on most recent findings related to its involvement in physiological and pathological thrombopoiesis.
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80
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Hegedũs L, Garay T, Molnár E, Varga K, Bilecz Á, Török S, Padányi R, Pászty K, Wolf M, Grusch M, Kállay E, Döme B, Berger W, Hegedũs B, Enyedi A. The plasma membrane
C
a
2+
pump
PMCA
4b inhibits the migratory and metastatic activity of
BRAF
mutant melanoma cells. Int J Cancer 2016; 140:2758-2770. [DOI: 10.1002/ijc.30503] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 10/24/2016] [Indexed: 01/06/2023]
Affiliation(s)
- Luca Hegedũs
- Department of Pathophysiology and Allergy ResearchComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
| | - Tamás Garay
- 2nd Department of PathologySemmelweis UniversityBudapest, Hungary
- Department of Biological PhysicsEötvös UniversityBudapest Hungary
| | - Eszter Molnár
- 2nd Department of PathologySemmelweis UniversityBudapest, Hungary
| | - Karolina Varga
- 2nd Department of PathologySemmelweis UniversityBudapest, Hungary
| | - Ágnes Bilecz
- 2nd Department of PathologySemmelweis UniversityBudapest, Hungary
| | - Szilvia Török
- National Koranyi Institute of PulmonologyBudapest Hungary
| | - Rita Padányi
- 2nd Department of PathologySemmelweis UniversityBudapest, Hungary
| | - Katalin Pászty
- Molecular Biophysics Research Group of the Hungarian Academy of Sciences and Department of BiophysicsSemmelweis UniversityBudapest Hungary
| | - Matthias Wolf
- Department of Medicine I, Institute of Cancer ResearchComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
| | - Michael Grusch
- Department of Medicine I, Institute of Cancer ResearchComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
| | - Enikõ Kállay
- Department of Pathophysiology and Allergy ResearchComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
| | - Balázs Döme
- National Koranyi Institute of PulmonologyBudapest Hungary
- Department of Surgery, Division of Thoracic SurgeryComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
- Department of Thoracic SurgeryNational Institute of Oncology‐Semmelweis UniversityBudapest, Hungary
- Department of Biomedical Imaging and Image‐guided TherapyMedical University of ViennaVienna Austria
| | - Walter Berger
- Department of Medicine I, Institute of Cancer ResearchComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
| | - Balázs Hegedũs
- Department of Surgery, Division of Thoracic SurgeryComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
- Department of Thoracic SurgeryRuhrlandklinik, University Clinic EssenEssen Germany
- Molecular Oncology Research Group of the Hungarian Academy of Sciences and 2nd Department of Pathology, Semmelweis UniversityBudapest Hungary
| | - Agnes Enyedi
- 2nd Department of PathologySemmelweis UniversityBudapest, Hungary
- Molecular Oncology Research Group of the Hungarian Academy of Sciences and 2nd Department of Pathology, Semmelweis UniversityBudapest Hungary
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81
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Orai1 and Orai2 mediate store-operated calcium entry that regulates HL60 cell migration and FAK phosphorylation. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1864:1064-1070. [PMID: 27865925 DOI: 10.1016/j.bbamcr.2016.11.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 10/07/2016] [Accepted: 11/11/2016] [Indexed: 12/12/2022]
Abstract
Store-operated Ca2+ entry (SOCE) is a major mechanism for the regulation of intracellular Ca2+ homeostasis and cellular function. Emerging evidence has revealed that altered expression and function of the molecular determinants of SOCE play a critical role in the development or maintenance of several cancer hallmarks, including enhanced proliferation and migration. Here we show that, in the acute myeloid leukemia cell line HL60, Orai2 is highly expressed at the transcript level, followed by the expression of Orai1. Using fluorescence Ca2+ imaging we found that Orai2 silencing significantly attenuated thapsigargin-induced SOCE, as well as knockdown of Orai1, while silencing the expression of both channels almost completely reduced SOCE, thus suggesting that SOCE in these cells is strongly dependent on Orai1 and Orai2. On the other hand, the expression of TRPC1, TRPC3 and TRPC6 is almost absent at the transcript and protein level. Bromodeoxyuridine cell proliferation assay revealed that Orai1 and Orai2 expression silencing significantly reduced HL60 cell proliferation. Furthermore, knockdown of Orai1 and Orai2 significantly attenuated the ability of HL60 to migrate in vitro as determined by transwell migration assay, probably due to the impairment of FAK tyrosine phosphorylation. These findings provide evidence for a role for Orai1 and Orai2, in SOCE and migration in the human HL60 promyeloblastic cell line. This article is part of a Special Issue entitled: ECS Meeting edited by Claus Heizmann, Joachim Krebs and Jacques Haiech.
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82
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Gruszczynska-Biegala J, Sladowska M, Kuznicki J. AMPA Receptors Are Involved in Store-Operated Calcium Entry and Interact with STIM Proteins in Rat Primary Cortical Neurons. Front Cell Neurosci 2016; 10:251. [PMID: 27826230 PMCID: PMC5078690 DOI: 10.3389/fncel.2016.00251] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 10/13/2016] [Indexed: 11/13/2022] Open
Abstract
The process of store-operated calcium entry (SOCE) leads to refilling the endoplasmic reticulum (ER) with calcium ions (Ca2+) after their release into the cytoplasm. Interactions between (ER)-located Ca2+ sensors (stromal interaction molecule 1 [STIM1] and STIM2) and plasma membrane-located Ca2+ channel-forming protein (Orai1) underlie SOCE and are well described in non-excitable cells. In neurons, however, SOCE appears to be more complex because of the importance of Ca2+ influx via voltage-gated or ionotropic receptor-operated Ca2+ channels. We found that the SOCE inhibitors ML-9 and SKF96365 reduced α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)-induced [Ca2+]i amplitude by 80% and 53%, respectively. To assess the possible involvement of AMPA receptors (AMPARs) in SOCE, we used their specific inhibitors. As estimated by Fura-2 acetoxymethyl (AM) single-cell Ca2+ measurements in the presence of CNQX or NBQX, thapsigargin (TG)-induced Ca2+ influx decreased 2.2 or 3.7 times, respectively. These results suggest that under experimental conditions of SOCE when Ca2+ stores are depleted, Ca2+ can enter neurons also through AMPARs. Using specific antibodies against STIM proteins or GluA1/GluA2 AMPAR subunits, co-immunoprecipitation assays indicated that when Ca2+ levels are low in the neuronal ER, a physical association occurs between endogenous STIM proteins and endogenous AMPAR receptors. Altogether, our data suggest that STIM proteins in neurons can control AMPA-induced Ca2+ entry as a part of the mechanism of SOCE.
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Affiliation(s)
- Joanna Gruszczynska-Biegala
- Laboratory of Neurodegeneration, International Institute of Molecular and Cell Biology in Warsaw Warsaw, Poland
| | - Maria Sladowska
- Laboratory of Neurodegeneration, International Institute of Molecular and Cell Biology in Warsaw Warsaw, Poland
| | - Jacek Kuznicki
- Laboratory of Neurodegeneration, International Institute of Molecular and Cell Biology in Warsaw Warsaw, Poland
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83
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Ghosh D, Syed AU, Prada MP, Nystoriak MA, Santana LF, Nieves-Cintrón M, Navedo MF. Calcium Channels in Vascular Smooth Muscle. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2016; 78:49-87. [PMID: 28212803 DOI: 10.1016/bs.apha.2016.08.002] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Calcium (Ca2+) plays a central role in excitation, contraction, transcription, and proliferation of vascular smooth muscle cells (VSMs). Precise regulation of intracellular Ca2+ concentration ([Ca2+]i) is crucial for proper physiological VSM function. Studies over the last several decades have revealed that VSMs express a variety of Ca2+-permeable channels that orchestrate a dynamic, yet finely tuned regulation of [Ca2+]i. In this review, we discuss the major Ca2+-permeable channels expressed in VSM and their contribution to vascular physiology and pathology.
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Affiliation(s)
- D Ghosh
- University of California, Davis, CA, United States
| | - A U Syed
- University of California, Davis, CA, United States
| | - M P Prada
- University of California, Davis, CA, United States
| | - M A Nystoriak
- Diabetes and Obesity Center, University of Louisville, Louisville, KY, United States
| | - L F Santana
- University of California, Davis, CA, United States
| | | | - M F Navedo
- University of California, Davis, CA, United States.
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84
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Chen M, Li J, Jiang F, Fu J, Xia X, Du J, Hu M, Huang J, Shen B. Orai1 forms a signal complex with BKCa channel in mesenteric artery smooth muscle cells. Physiol Rep 2016; 4:4/1/e12682. [PMID: 26755740 PMCID: PMC4760400 DOI: 10.14814/phy2.12682] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Orai1, a specific nonvoltage‐gated Ca2+ channel, has been found to be one of key molecules involved in store‐operated Ca2+ entry (SOCE). Orai1 may associate with other proteins to form a signaling complex, which is essential for regulating a variety of physiological functions. In this study, we studied the possible interaction between Orai1 and large conductance Ca2+‐activated potassium channel (BKCa). Using RNA interference technique, we demonstrated that the SOCE and its associated membrane hyperpolarization were markedly suppressed after knockdown of Orai1 with a specific Orai1 siRNA in rat mesenteric artery smooth muscle. Moreover, isometric tension measurements showed that agonist‐induced vasocontraction was increased after Orai1 was knocked down or the tissue was incubated with BKCa blocker iberiotoxin. Coimmunoprecipitation data revealed that BKCa and Orai1 could reciprocally pull down each other. In situ proximity ligation assay further demonstrated that Orai1 and BKCa are in close proximity. Taken together, these results indicate that Orai1 physically associates with BKCa to form a signaling complex in the rat mesenteric artery smooth muscle. Ca2+ influx via Orai1 stimulates BKCa, leading to membrane hyperpolarization. This hyperpolarizing effect of Orai1‐BKCa coupling could contribute to reduce agonist‐induced membrane depolarization, therefore preventing excessive contraction of the rat mesenteric artery smooth muscle in response to contractile agonists.
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Affiliation(s)
- Meihua Chen
- Department of Physiology, Anhui Medical University, Hefei, Anhui, China
| | - Jie Li
- Department of Physiology, Anhui Medical University, Hefei, Anhui, China
| | - Feifei Jiang
- Department of Pediatrics, The people's hospital of Bozhou, Bozhou, Anhui, China
| | - Jie Fu
- Department of Physiology, Anhui Medical University, Hefei, Anhui, China
| | - Xianming Xia
- Department of Gastroenterology and Hepatology, The Fourth Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Juan Du
- Department of Physiology, Anhui Medical University, Hefei, Anhui, China
| | - Min Hu
- Department of Sports and Health, Guangdong Provincial Key Laboratory of Sports and Health Promotion, Guangzhou Sport University, Guangzhou, Guangdong, China
| | - Junhao Huang
- Department of Sports and Health, Guangdong Provincial Key Laboratory of Sports and Health Promotion, Guangzhou Sport University, Guangzhou, Guangdong, China
| | - Bing Shen
- Department of Physiology, Anhui Medical University, Hefei, Anhui, China Central Laboratory of Molecular and Cellular Biology of School of Basic Medicine, Anhui Medical University, Hefei, Anhui, China
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Kassan M, Ait-Aissa K, Radwan E, Mali V, Haddox S, Gabani M, Zhang W, Belmadani S, Irani K, Trebak M, Matrougui K. Essential Role of Smooth Muscle STIM1 in Hypertension and Cardiovascular Dysfunction. Arterioscler Thromb Vasc Biol 2016; 36:1900-9. [PMID: 27470514 DOI: 10.1161/atvbaha.116.307869] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 07/12/2016] [Indexed: 01/05/2023]
Abstract
OBJECTIVES Chronic hypertension is the most critical risk factor for cardiovascular disease, heart failure, and stroke. APPROACH AND RESULTS Here we show that wild-type mice infused with angiotensin II develop hypertension, cardiac hypertrophy, perivascular fibrosis, and endothelial dysfunction with enhanced stromal interaction molecule 1 (STIM1) expression in heart and vessels. All these pathologies were significantly blunted in mice lacking STIM1 specifically in smooth muscle (Stim1(SMC-/-)). Mechanistically, STIM1 upregulation during angiotensin II-induced hypertension was associated with enhanced endoplasmic reticulum stress, and smooth muscle STIM1 was required for endoplasmic reticulum stress-induced vascular dysfunction through transforming growth factor-β and nicotinamide adenine dinucleotide phosphate oxidase-dependent pathways. Accordingly, knockout mice for the endoplasmic reticulum stress proapoptotic transcriptional factor, CCAAT-enhancer-binding protein homologous protein (CHOP(-/-)), were resistant to hypertension-induced cardiovascular pathologies. Wild-type mice infused with angiotensin II, but not Stim1(SMC-/-) or CHOP(-/-) mice showed elevated vascular nicotinamide adenine dinucleotide phosphate oxidase activity and reduced phosphorylated endothelial nitric oxide synthase, cGMP, and nitrite levels. CONCLUSIONS Thus, smooth muscle STIM1 plays a crucial role in the development of hypertension and associated cardiovascular pathologies and represents a promising target for cardiovascular therapy.
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Affiliation(s)
- Modar Kassan
- From the Department of Physiology, Hypertension and Renal Center of Excellence, Tulane University, New Orleans, LA (M.K., K.M.); Department of Physiological Sciences, EVMS, Norfolk, VA (M.K., K.A.-A., E.R., V.M., S.H., S.B., K.M.); Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA (W.Z., M.T); and Department of Internal Medicine, University of Iowa, Iowa City (K.M., M.G., K.I.)
| | - Karima Ait-Aissa
- From the Department of Physiology, Hypertension and Renal Center of Excellence, Tulane University, New Orleans, LA (M.K., K.M.); Department of Physiological Sciences, EVMS, Norfolk, VA (M.K., K.A.-A., E.R., V.M., S.H., S.B., K.M.); Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA (W.Z., M.T); and Department of Internal Medicine, University of Iowa, Iowa City (K.M., M.G., K.I.)
| | - Eman Radwan
- From the Department of Physiology, Hypertension and Renal Center of Excellence, Tulane University, New Orleans, LA (M.K., K.M.); Department of Physiological Sciences, EVMS, Norfolk, VA (M.K., K.A.-A., E.R., V.M., S.H., S.B., K.M.); Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA (W.Z., M.T); and Department of Internal Medicine, University of Iowa, Iowa City (K.M., M.G., K.I.)
| | - Vishal Mali
- From the Department of Physiology, Hypertension and Renal Center of Excellence, Tulane University, New Orleans, LA (M.K., K.M.); Department of Physiological Sciences, EVMS, Norfolk, VA (M.K., K.A.-A., E.R., V.M., S.H., S.B., K.M.); Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA (W.Z., M.T); and Department of Internal Medicine, University of Iowa, Iowa City (K.M., M.G., K.I.)
| | - Samuel Haddox
- From the Department of Physiology, Hypertension and Renal Center of Excellence, Tulane University, New Orleans, LA (M.K., K.M.); Department of Physiological Sciences, EVMS, Norfolk, VA (M.K., K.A.-A., E.R., V.M., S.H., S.B., K.M.); Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA (W.Z., M.T); and Department of Internal Medicine, University of Iowa, Iowa City (K.M., M.G., K.I.)
| | - Mohanad Gabani
- From the Department of Physiology, Hypertension and Renal Center of Excellence, Tulane University, New Orleans, LA (M.K., K.M.); Department of Physiological Sciences, EVMS, Norfolk, VA (M.K., K.A.-A., E.R., V.M., S.H., S.B., K.M.); Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA (W.Z., M.T); and Department of Internal Medicine, University of Iowa, Iowa City (K.M., M.G., K.I.)
| | - Wei Zhang
- From the Department of Physiology, Hypertension and Renal Center of Excellence, Tulane University, New Orleans, LA (M.K., K.M.); Department of Physiological Sciences, EVMS, Norfolk, VA (M.K., K.A.-A., E.R., V.M., S.H., S.B., K.M.); Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA (W.Z., M.T); and Department of Internal Medicine, University of Iowa, Iowa City (K.M., M.G., K.I.)
| | - Souad Belmadani
- From the Department of Physiology, Hypertension and Renal Center of Excellence, Tulane University, New Orleans, LA (M.K., K.M.); Department of Physiological Sciences, EVMS, Norfolk, VA (M.K., K.A.-A., E.R., V.M., S.H., S.B., K.M.); Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA (W.Z., M.T); and Department of Internal Medicine, University of Iowa, Iowa City (K.M., M.G., K.I.)
| | - Kaikobad Irani
- From the Department of Physiology, Hypertension and Renal Center of Excellence, Tulane University, New Orleans, LA (M.K., K.M.); Department of Physiological Sciences, EVMS, Norfolk, VA (M.K., K.A.-A., E.R., V.M., S.H., S.B., K.M.); Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA (W.Z., M.T); and Department of Internal Medicine, University of Iowa, Iowa City (K.M., M.G., K.I.)
| | - Mohamed Trebak
- From the Department of Physiology, Hypertension and Renal Center of Excellence, Tulane University, New Orleans, LA (M.K., K.M.); Department of Physiological Sciences, EVMS, Norfolk, VA (M.K., K.A.-A., E.R., V.M., S.H., S.B., K.M.); Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA (W.Z., M.T); and Department of Internal Medicine, University of Iowa, Iowa City (K.M., M.G., K.I.).
| | - Khalid Matrougui
- From the Department of Physiology, Hypertension and Renal Center of Excellence, Tulane University, New Orleans, LA (M.K., K.M.); Department of Physiological Sciences, EVMS, Norfolk, VA (M.K., K.A.-A., E.R., V.M., S.H., S.B., K.M.); Department of Cellular and Molecular Physiology, Penn State University College of Medicine, Hershey, PA (W.Z., M.T); and Department of Internal Medicine, University of Iowa, Iowa City (K.M., M.G., K.I.).
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86
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Lopez JJ, Albarran L, Gómez LJ, Smani T, Salido GM, Rosado JA. Molecular modulators of store-operated calcium entry. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1863:2037-43. [PMID: 27130253 DOI: 10.1016/j.bbamcr.2016.04.024] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 04/13/2016] [Accepted: 04/25/2016] [Indexed: 12/20/2022]
Abstract
Three decades ago, store-operated Ca(2+) entry (SOCE) was identified as a unique mechanism for Ca(2+) entry through plasma membrane (PM) Ca(2+)-permeable channels modulated by the intracellular Ca(2+) stores, mainly the endoplasmic reticulum (ER). Extensive analysis of the communication between the ER and the PM leads to the identification of the protein STIM1 as the ER-Ca(2+) sensor that gates the Ca(2+) channels in the PM. Further analysis on the biophysical, electrophysiological and biochemical properties of STIM1-dependent Ca(2+) channels has revealed the presence of a highly Ca(2+)-selective channel termed Ca(2+) release-activated Ca(2+) channel (CRAC), consisting of Orai1 subunits, and non-selective cation channels named store-operated channels (SOC), including both Orai1 and TRPC channel subunits. Since the identification of the key elements of CRAC and SOC channels a number of intracellular modulators have been reported to play essential roles in the stabilization of STIM-Orai interactions, collaboration with STIM1 conformational changes or mediating slow Ca(2+)-dependent inactivation. Here, we review our current understanding of some of the key modulators of STIM1-Orai1 interaction, including the proteins CRACR2A, STIMATE, SARAF, septins, golli and ORMDL3.
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Affiliation(s)
- Jose J Lopez
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, 10003 Cáceres, Spain
| | - Letizia Albarran
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, 10003 Cáceres, Spain
| | - Luis J Gómez
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, 10003 Cáceres, Spain
| | - Tarik Smani
- Department of Medical Physiology and Biophysic, Institute of Biomedicine of Sevilla, Sevilla, Spain
| | - Gines M Salido
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, 10003 Cáceres, Spain
| | - Juan A Rosado
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, 10003 Cáceres, Spain.
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87
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MISÁRKOVÁ E, BEHULIAK M, BENCZE M, ZICHA J. Excitation-Contraction Coupling and Excitation-Transcription Coupling in Blood Vessels: Their Possible Interactions in Hypertensive Vascular Remodeling. Physiol Res 2016; 65:173-91. [DOI: 10.33549/physiolres.933317] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Vascular smooth muscle cells (VSMC) display considerable phenotype plasticity which can be studied in vivo on vascular remodeling which occurs during acute or chronic vascular injury. In differentiated cells, which represent contractile phenotype, there are characteristic rapid transient changes of intracellular Ca2+ concentration ([Ca2+]i), while the resting cytosolic [Ca2+]i concentration is low. It is mainly caused by two components of the Ca2+ signaling pathways: Ca2+ entry via L-type voltage-dependent Ca2+ channels and dynamic involvement of intracellular stores. Proliferative VSMC phenotype is characterized by long-lasting [Ca2+]i oscillations accompanied by sustained elevation of basal [Ca2+]i. During the switch from contractile to proliferative phenotype there is a general transition from voltage-dependent Ca2+ entry to voltage-independent Ca2+ entry into the cell. These changes are due to the altered gene expression which is dependent on specific transcription factors activated by various stimuli. It is an open question whether abnormal VSMC phenotype reported in rats with genetic hypertension (such as spontaneously hypertensive rats) might be partially caused by a shift from contractile to proliferative VSMC phenotype.
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Affiliation(s)
| | | | | | - J. ZICHA
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
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88
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Li F, Abuarab N, Sivaprasadarao A. Reciprocal regulation of actin cytoskeleton remodelling and cell migration by Ca2+ and Zn2+: role of TRPM2 channels. J Cell Sci 2016; 129:2016-29. [PMID: 27068538 DOI: 10.1242/jcs.179796] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 04/01/2016] [Indexed: 12/26/2022] Open
Abstract
Cell migration is a fundamental feature of tumour metastasis and angiogenesis. It is regulated by a variety of signalling molecules including H2O2 and Ca(2+) Here, we asked whether the H2O2-sensitive transient receptor potential melastatin 2 (TRPM2) Ca(2+) channel serves as a molecular link between H2O2 and Ca(2+) H2O2-mediated activation of TRPM2 channels induced filopodia formation, loss of actin stress fibres and disassembly of focal adhesions, leading to increased migration of HeLa and prostate cancer (PC)-3 cells. Activation of TRPM2 channels, however, caused intracellular release of not only Ca(2+) but also of Zn(2+) Intriguingly, elevation of intracellular Zn(2+) faithfully reproduced all of the effects of H2O2, whereas Ca(2+) showed opposite effects. Interestingly, H2O2 caused increased trafficking of Zn(2+)-enriched lysosomes to the leading edge of migrating cells, presumably to impart polarisation of Zn(2+) location. Thus, our results indicate that a reciprocal interplay between Ca(2+) and Zn(2+) regulates actin remodelling and cell migration; they call for a revision of the current notion that implicates an exclusive role for Ca(2+) in cell migration.
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Affiliation(s)
- Fangfang Li
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds LS2 9JT, UK
| | - Nada Abuarab
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds LS2 9JT, UK
| | - Asipu Sivaprasadarao
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds LS2 9JT, UK
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89
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Brozovich FV, Nicholson CJ, Degen CV, Gao YZ, Aggarwal M, Morgan KG. Mechanisms of Vascular Smooth Muscle Contraction and the Basis for Pharmacologic Treatment of Smooth Muscle Disorders. Pharmacol Rev 2016; 68:476-532. [PMID: 27037223 PMCID: PMC4819215 DOI: 10.1124/pr.115.010652] [Citation(s) in RCA: 298] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The smooth muscle cell directly drives the contraction of the vascular wall and hence regulates the size of the blood vessel lumen. We review here the current understanding of the molecular mechanisms by which agonists, therapeutics, and diseases regulate contractility of the vascular smooth muscle cell and we place this within the context of whole body function. We also discuss the implications for personalized medicine and highlight specific potential target molecules that may provide opportunities for the future development of new therapeutics to regulate vascular function.
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Affiliation(s)
- F V Brozovich
- Department of Health Sciences, Boston University, Boston, Massachusetts (C.J.N., Y.Z.G., M.A., K.G.M.); Department of Medicine, Mayo Clinic, Rochester, Minnesota (F.V.B.); and Paracelsus Medical University Salzburg, Salzburg, Austria (C.V.D.)
| | - C J Nicholson
- Department of Health Sciences, Boston University, Boston, Massachusetts (C.J.N., Y.Z.G., M.A., K.G.M.); Department of Medicine, Mayo Clinic, Rochester, Minnesota (F.V.B.); and Paracelsus Medical University Salzburg, Salzburg, Austria (C.V.D.)
| | - C V Degen
- Department of Health Sciences, Boston University, Boston, Massachusetts (C.J.N., Y.Z.G., M.A., K.G.M.); Department of Medicine, Mayo Clinic, Rochester, Minnesota (F.V.B.); and Paracelsus Medical University Salzburg, Salzburg, Austria (C.V.D.)
| | - Yuan Z Gao
- Department of Health Sciences, Boston University, Boston, Massachusetts (C.J.N., Y.Z.G., M.A., K.G.M.); Department of Medicine, Mayo Clinic, Rochester, Minnesota (F.V.B.); and Paracelsus Medical University Salzburg, Salzburg, Austria (C.V.D.)
| | - M Aggarwal
- Department of Health Sciences, Boston University, Boston, Massachusetts (C.J.N., Y.Z.G., M.A., K.G.M.); Department of Medicine, Mayo Clinic, Rochester, Minnesota (F.V.B.); and Paracelsus Medical University Salzburg, Salzburg, Austria (C.V.D.)
| | - K G Morgan
- Department of Health Sciences, Boston University, Boston, Massachusetts (C.J.N., Y.Z.G., M.A., K.G.M.); Department of Medicine, Mayo Clinic, Rochester, Minnesota (F.V.B.); and Paracelsus Medical University Salzburg, Salzburg, Austria (C.V.D.)
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90
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Stiber JA, Wu JH, Zhang L, Nepliouev I, Zhang ZS, Bryson VG, Brian L, Bentley RC, Gordon-Weeks PR, Rosenberg PB, Freedman NJ. The Actin-Binding Protein Drebrin Inhibits Neointimal Hyperplasia. Arterioscler Thromb Vasc Biol 2016; 36:984-93. [PMID: 27013612 DOI: 10.1161/atvbaha.115.306140] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 03/15/2016] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Vascular smooth muscle cell (SMC) migration is regulated by cytoskeletal remodeling as well as by certain transient receptor potential (TRP) channels, nonselective cation channels that modulate calcium influx. Proper function of multiple subfamily C TRP (TRPC) channels requires the scaffolding protein Homer 1, which associates with the actin-binding protein Drebrin. We found that SMC Drebrin expression is upregulated in atherosclerosis and in response to injury and investigated whether Drebrin inhibits SMC activation, either through regulation of TRP channel function via Homer or through a direct effect on the actin cytoskeleton. APPROACH AND RESULTS Wild-type (WT) and congenic Dbn(-/+) mice were subjected to wire-mediated carotid endothelial denudation. Subsequent neointimal hyperplasia was 2.4±0.3-fold greater in Dbn(-/+) than in WT mice. Levels of globular actin were equivalent in Dbn(-/+) and WT SMCs, but there was a 2.4±0.5-fold decrease in filamentous actin in Dbn(-/+) SMCs compared with WT. Filamentous actin was restored to WT levels in Dbn(-/+) SMCs by adenoviral-mediated rescue expression of Drebrin. Compared with WT SMCs, Dbn(-/+) SMCs exhibited increased TRP channel activity in response to platelet-derived growth factor, increased migration assessed in Boyden chambers, and increased proliferation. Enhanced TRP channel activity and migration in Dbn(-/+) SMCs were normalized to WT levels by rescue expression of not only WT Drebrin but also a mutant Drebrin isoform that binds actin but fails to bind Homer. CONCLUSIONS Drebrin reduces SMC activation through its interaction with the actin cytoskeleton but independently of its interaction with Homer scaffolds.
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Affiliation(s)
- Jonathan A Stiber
- From the Department of Medicine, Duke University Medical Center, Durham, NC (J.A.S., J.-H.W., L.Z., I.N., Z.-S.Z., V.G.B., L.B., P.B.R., N.J.F.); Department of Pathology, Duke University Medical Center, Durham, NC (R.C.B.); and MRC Centre for Developmental Neurobiology, King's College, London, UK (P.R.G.-W.).
| | - Jiao-Hui Wu
- From the Department of Medicine, Duke University Medical Center, Durham, NC (J.A.S., J.-H.W., L.Z., I.N., Z.-S.Z., V.G.B., L.B., P.B.R., N.J.F.); Department of Pathology, Duke University Medical Center, Durham, NC (R.C.B.); and MRC Centre for Developmental Neurobiology, King's College, London, UK (P.R.G.-W.)
| | - Lisheng Zhang
- From the Department of Medicine, Duke University Medical Center, Durham, NC (J.A.S., J.-H.W., L.Z., I.N., Z.-S.Z., V.G.B., L.B., P.B.R., N.J.F.); Department of Pathology, Duke University Medical Center, Durham, NC (R.C.B.); and MRC Centre for Developmental Neurobiology, King's College, London, UK (P.R.G.-W.)
| | - Igor Nepliouev
- From the Department of Medicine, Duke University Medical Center, Durham, NC (J.A.S., J.-H.W., L.Z., I.N., Z.-S.Z., V.G.B., L.B., P.B.R., N.J.F.); Department of Pathology, Duke University Medical Center, Durham, NC (R.C.B.); and MRC Centre for Developmental Neurobiology, King's College, London, UK (P.R.G.-W.)
| | - Zhu-Shan Zhang
- From the Department of Medicine, Duke University Medical Center, Durham, NC (J.A.S., J.-H.W., L.Z., I.N., Z.-S.Z., V.G.B., L.B., P.B.R., N.J.F.); Department of Pathology, Duke University Medical Center, Durham, NC (R.C.B.); and MRC Centre for Developmental Neurobiology, King's College, London, UK (P.R.G.-W.)
| | - Victoria G Bryson
- From the Department of Medicine, Duke University Medical Center, Durham, NC (J.A.S., J.-H.W., L.Z., I.N., Z.-S.Z., V.G.B., L.B., P.B.R., N.J.F.); Department of Pathology, Duke University Medical Center, Durham, NC (R.C.B.); and MRC Centre for Developmental Neurobiology, King's College, London, UK (P.R.G.-W.)
| | - Leigh Brian
- From the Department of Medicine, Duke University Medical Center, Durham, NC (J.A.S., J.-H.W., L.Z., I.N., Z.-S.Z., V.G.B., L.B., P.B.R., N.J.F.); Department of Pathology, Duke University Medical Center, Durham, NC (R.C.B.); and MRC Centre for Developmental Neurobiology, King's College, London, UK (P.R.G.-W.)
| | - Rex C Bentley
- From the Department of Medicine, Duke University Medical Center, Durham, NC (J.A.S., J.-H.W., L.Z., I.N., Z.-S.Z., V.G.B., L.B., P.B.R., N.J.F.); Department of Pathology, Duke University Medical Center, Durham, NC (R.C.B.); and MRC Centre for Developmental Neurobiology, King's College, London, UK (P.R.G.-W.)
| | - Phillip R Gordon-Weeks
- From the Department of Medicine, Duke University Medical Center, Durham, NC (J.A.S., J.-H.W., L.Z., I.N., Z.-S.Z., V.G.B., L.B., P.B.R., N.J.F.); Department of Pathology, Duke University Medical Center, Durham, NC (R.C.B.); and MRC Centre for Developmental Neurobiology, King's College, London, UK (P.R.G.-W.)
| | - Paul B Rosenberg
- From the Department of Medicine, Duke University Medical Center, Durham, NC (J.A.S., J.-H.W., L.Z., I.N., Z.-S.Z., V.G.B., L.B., P.B.R., N.J.F.); Department of Pathology, Duke University Medical Center, Durham, NC (R.C.B.); and MRC Centre for Developmental Neurobiology, King's College, London, UK (P.R.G.-W.)
| | - Neil J Freedman
- From the Department of Medicine, Duke University Medical Center, Durham, NC (J.A.S., J.-H.W., L.Z., I.N., Z.-S.Z., V.G.B., L.B., P.B.R., N.J.F.); Department of Pathology, Duke University Medical Center, Durham, NC (R.C.B.); and MRC Centre for Developmental Neurobiology, King's College, London, UK (P.R.G.-W.)
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91
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Spinelli AM, Trebak M. Orai channel-mediated Ca2+ signals in vascular and airway smooth muscle. Am J Physiol Cell Physiol 2016; 310:C402-13. [PMID: 26718630 PMCID: PMC4796280 DOI: 10.1152/ajpcell.00355.2015] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Orai (Orai1, Orai2, and Orai3) proteins form a family of highly Ca(2+)-selective plasma membrane channels that are regulated by stromal-interacting molecules (STIM1 and STIM2); STIM proteins are Ca(2+) sensors located in the membrane of the endoplasmic reticulum. STIM and Orai proteins are expressed in vascular and airway smooth muscle and constitute the molecular components of the ubiquitous store-operated Ca(2+) entry pathway that mediate the Ca(2+) release-activated Ca(2+) current. STIM/Orai proteins also encode store-independent Ca(2+) entry pathways in smooth muscle. Altered expression and function of STIM/Orai proteins have been linked to vascular and airway pathologies, including restenosis, hypertension, and atopic asthma. In this review we discuss our current understanding of Orai proteins and the store-dependent and -independent signaling pathways mediated by these proteins in vascular and airway smooth muscle. We also discuss the current studies linking altered expression and function of Orai proteins with smooth muscle-related pathologies.
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Affiliation(s)
- Amy M Spinelli
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
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92
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Contrasting Patterns of Agonist-induced Store-operated Ca2+ Entry and Vasoconstriction in Mesenteric Arteries and Aorta With Aging. J Cardiovasc Pharmacol 2016; 65:571-8. [PMID: 25636074 PMCID: PMC4461395 DOI: 10.1097/fjc.0000000000000225] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Ca is a crucial factor in the regulation of smooth muscle contraction. Store-operated Ca entry (SOCE) is one pathway that mediates Ca influx and smooth muscle contraction. Vessel contraction function usually alters with aging to cause severe vascular-related diseases. However, the underlying mechanism is still not fully understood. Here, we assessed intracellular Ca and vessel tension and found that SOCE and SOCE-mediated contraction of vascular smooth muscle cells (VSMCs) was reduced in aorta but increased in mesenteric arteries from aged rats. The results of Western blot and immunofluorescence staining show that the expression levels of Orai1, a store-operated Ca channel, were increased in VSMCs of mesenteric arteries but were reduced in VSMCs of aorta with aging. In conclusion, we demonstrated that the changing pattern of SOCE and SOCE-mediated contraction of VSMCs is completely reversed in mesenteric arteries and aorta with aging, providing a potential therapeutic target for clinical treatment in age-related vascular diseases.
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93
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Chen YW, Chen YF, Chen YT, Chiu WT, Shen MR. The STIM1-Orai1 pathway of store-operated Ca2+ entry controls the checkpoint in cell cycle G1/S transition. Sci Rep 2016; 6:22142. [PMID: 26917047 PMCID: PMC4768259 DOI: 10.1038/srep22142] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 02/08/2016] [Indexed: 01/10/2023] Open
Abstract
Ca(2+) signaling is important to trigger the cell cycle progression, while it remains elusive in the regulatory mechanisms. Here we show that store-operated Ca(2+) entry (SOCE), mediated by the interaction between STIM1 (an endoplasmic reticulum Ca(2+) sensor) and Orai1 (a cell membrane pore structure), controls the specific checkpoint of cell cycle. The fluctuating SOCE activity during cell cycle progression is universal in different cell types, in which SOCE is upregulated in G1/S transition and downregulated from S to G2/M transition. Pharmacological or siRNA inhibition of STIM1-Orai1 pathway of SOCE inhibits the phosphorylation of CDK2 and upregulates the expression of cyclin E, resulting in autophagy accompanied with cell cycle arrest in G1/S transition. The subsequently transient expression of STIM1 cDNA in STIM1(-/-) MEF rescues the phosphorylation and nuclear translocation of CDK2, suggesting that STIM1-mediated SOCE activation directly regulates CDK2 activity. Opposite to the important role of SOCE in controlling G1/S transition, the downregulated SOCE is a passive phenomenon from S to G2/M transition. This study uncovers SOCE-mediated Ca(2+) microdomain that is the molecular basis for the Ca(2+) sensitivity controlling G1/S transition.
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Affiliation(s)
- Yun-Wen Chen
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yih-Fung Chen
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.,PhD Program in Toxicology, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ying-Ting Chen
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Tai Chiu
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Meng-Ru Shen
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Obstetrics and Gynecology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Advanced Optoelectronic Technology Center, College of Engineering, National Cheng Kung University, Tainan, Taiwan
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94
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Abstract
Store-operated Ca(2+) entry (SOCE) is mediated by the store-operated Ca(2+) channel (SOC) that opens upon depletion of internal Ca(2+) stores following activation of G protein-coupled receptors or receptor tyrosine kinases. Over the past two decades, the physiological and pathological relevance of SOCE has been extensively studied. Recently, accumulating evidence suggests associations of altered SOCE with diabetic complications. This review focuses on the implication of SOCE as it pertains to various complications resulting from diabetes. We summarize recent findings by us and others on the involvement of abnormal SOCE in the development of diabetic complications, such as diabetic nephropathy and diabetic vasculopathy. The underlying mechanisms that mediate the diabetes-associated alterations of SOCE are also discussed. The SOCE pathway may be considered as a potential therapeutic target for diabetes-associated diseases.
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Affiliation(s)
- Sarika Chaudhari
- Department of Integrative Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth 76107, TX, USA
| | - Rong Ma
- Department of Integrative Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth 76107, TX, USA
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95
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Saddouk FZ, Sun LY, Liu YF, Jiang M, Singer DV, Backs J, Van Riper D, Ginnan R, Schwarz JJ, Singer HA. Ca2+/calmodulin-dependent protein kinase II-γ (CaMKIIγ) negatively regulates vascular smooth muscle cell proliferation and vascular remodeling. FASEB J 2015; 30:1051-64. [PMID: 26567004 DOI: 10.1096/fj.15-279158] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 10/28/2015] [Indexed: 01/15/2023]
Abstract
Vascular smooth muscle (VSM) expresses calcium/calmodulin-dependent protein kinase II (CaMKII)-δ and -γ isoforms. CaMKIIδ promotes VSM proliferation and vascular remodeling. We tested CaMKIIγ function in vascular remodeling after injury. CaMKIIγ protein decreased 90% 14 d after balloon injury in rat carotid artery. Intraluminal transduction of adenovirus encoding CaMKIIγC rescued expression to 35% of uninjured controls, inhibited neointima formation (>70%), inhibited VSM proliferation (>60%), and increased expression of the cell-cycle inhibitor p21 (>2-fold). Comparable doses of CaMKIIδ2 adenovirus had no effect. Similar dynamics in CaMKIIγ mRNA and protein expression were observed in ligated mouse carotid arteries, correlating closely with expression of VSM differentiation markers. Targeted deletion of CaMKIIγ in smooth muscle resulted in a 20-fold increase in neointimal area, with a 3-fold increase in the cell proliferation index, no change in apoptosis, and a 60% decrease in p21 expression. In cultured VSM, CaMKIIγ overexpression induced p53 mRNA (1.7 fold) and protein (1.8-fold) expression; induced the p53 target gene p21 (3-fold); decreased VSM cell proliferation (>50%); and had no effect on expression of apoptosis markers. We conclude that regulated CaMKII isoform composition is an important determinant of the injury-induced vasculoproliferative response and that CaMKIIγ and -δ isoforms have nonequivalent, opposing functions.
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Affiliation(s)
- Fatima Z Saddouk
- *Center for Cardiovascular Sciences, Albany Medical College, Albany, New York, USA; and Department of Cardiology, Angiology and Pneumology, University of Heidelberg, Heidelberg, Germany
| | - Li-Yan Sun
- *Center for Cardiovascular Sciences, Albany Medical College, Albany, New York, USA; and Department of Cardiology, Angiology and Pneumology, University of Heidelberg, Heidelberg, Germany
| | - Yong Feng Liu
- *Center for Cardiovascular Sciences, Albany Medical College, Albany, New York, USA; and Department of Cardiology, Angiology and Pneumology, University of Heidelberg, Heidelberg, Germany
| | - Miao Jiang
- *Center for Cardiovascular Sciences, Albany Medical College, Albany, New York, USA; and Department of Cardiology, Angiology and Pneumology, University of Heidelberg, Heidelberg, Germany
| | - Diane V Singer
- *Center for Cardiovascular Sciences, Albany Medical College, Albany, New York, USA; and Department of Cardiology, Angiology and Pneumology, University of Heidelberg, Heidelberg, Germany
| | - Johannes Backs
- *Center for Cardiovascular Sciences, Albany Medical College, Albany, New York, USA; and Department of Cardiology, Angiology and Pneumology, University of Heidelberg, Heidelberg, Germany
| | - Dee Van Riper
- *Center for Cardiovascular Sciences, Albany Medical College, Albany, New York, USA; and Department of Cardiology, Angiology and Pneumology, University of Heidelberg, Heidelberg, Germany
| | - Roman Ginnan
- *Center for Cardiovascular Sciences, Albany Medical College, Albany, New York, USA; and Department of Cardiology, Angiology and Pneumology, University of Heidelberg, Heidelberg, Germany
| | - John J Schwarz
- *Center for Cardiovascular Sciences, Albany Medical College, Albany, New York, USA; and Department of Cardiology, Angiology and Pneumology, University of Heidelberg, Heidelberg, Germany
| | - Harold A Singer
- *Center for Cardiovascular Sciences, Albany Medical College, Albany, New York, USA; and Department of Cardiology, Angiology and Pneumology, University of Heidelberg, Heidelberg, Germany
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96
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Santiago E, Climent B, Muñoz M, García-Sacristán A, Rivera L, Prieto D. Hydrogen peroxide activates store-operated Ca(2+) entry in coronary arteries. Br J Pharmacol 2015; 172:5318-32. [PMID: 26478127 DOI: 10.1111/bph.13322] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 08/20/2015] [Accepted: 09/06/2015] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND AND PURPOSE Abnormal Ca(2+) metabolism has been involved in the pathogenesis of vascular dysfunction associated with oxidative stress. Here, we have investigated the actions of H2 O2 on store-operated Ca(2+) (SOC) entry in coronary arteries and assessed whether it is impaired in arteries from a rat model of metabolic syndrome. EXPERIMENTAL APPROACH Simultaneous measurements of intracellular Ca(2+) concentration and contractile responses were made in coronary arteries from Wistar and obese Zucker rats, mounted in microvascular myographs, and the effects of H2 O2 were assessed. KEY RESULTS H2 O2 raised intracellular Ca(2+) concentrations, accompanied by simultaneous vasoconstriction that was markedly reduced in a Ca(2+) -free medium. Upon Ca(2+) re-addition, a nifedipine-resistant sustained Ca(2+) entry, not coupled to contraction, was obtained in endothelium-denuded coronary arteries. The effect of H2 O2 on this voltage-independent Ca(2+) influx was concentration-dependent, and high micromolar H2 O2 concentrations were inhibitory and reduced SOC entry evoked by inhibition of the sarcoplasmic reticulum ATPase (SERCA). H2 O2 -induced increases in Fura signals were mimicked by Ba(2+) and reduced by heparin, Gd(3+) ions and by Pyr6, a selective inhibitor of the Orai1-mediated Ca(2+) entry,. In coronary arteries from obese Zucker rats, intracellular Ca(2+) mobilization and SOC entry activated by acute exposure to H2 O2 were augmented and associated with local oxidative stress. CONCLUSION AND IMPLICATIONS H2 O2 exerted dual concentration-dependent stimulatory/inhibitory effects on store-operated, IP3 receptor-mediated and Orai1-mediated Ca(2+) entry, not coupled to vasoconstriction in coronary vascular smooth muscle. SOC entry activated by H2 O2 was enhanced and associated with vascular oxidative stress in coronary arteries in metabolic syndrome.
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Affiliation(s)
- Elvira Santiago
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain
| | - Belén Climent
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain
| | - Mercedes Muñoz
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain
| | - Albino García-Sacristán
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain
| | - Luis Rivera
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain
| | - Dolores Prieto
- Departamento de Fisiología, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain
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97
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Shi M, Yin F, Gu H, Zhu J, Yin X. Tissue Factor Pathway Inhibitor-Coated Stents Inhibit Restenosis in a Rabbit Carotid Artery Model. Cardiovasc Ther 2015; 33:353-9. [PMID: 26280363 DOI: 10.1111/1755-5922.12152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Our aim was to study the efficacy and safety of tissue factor pathway inhibitor (TFPI)-coated stents in inhibiting restenosis in a rabbit carotid artery model. METHODS Subculture was conducted in aorta smooth muscle cell, which was taken from male Wistar rat, and the 3-5-generation cells were taken for plasmid transfection and cytotoxicity experiment. TFPI microspheres were made of a TFPI plasmid which was enwrapped by poly-l-glutamic acid (PLGA). TFPI-coated stents (n = 7) and bare metal stents (n = 6) were implanted into prepared carotid artery stenosis model of New Zealand white rabbits. The transfection efficiency of TFPI gene and its influence on animal tissue, restenosis inhibition, and biochemical indicator were observed. RESULT Tissue factor pathway inhibitor microspheres can transfect successfully into cells, and present no cytotoxicity. Autopsy results showed no pathological changes in liver and spleen of rabbits after implanting TFPI-coated stents. TFPI gene could transfect and express successfully in vessel wall cells, and thrombus was found in some lumens of bare metal stents group after 7 day, while no such thrombus was observed in coated stents group. Degree of hyperplasia of coronary endarterectomy in bare metal stents group was evidently higher than those in coated stents group. Obvious stent restenosis was discovered only in one case in bare metal stents group (diameter stenosis ≥50%). However, no case in coated stents group showed with stent restenosis. CONCLUSION Tissue factor pathway inhibitor-coated stents could successfully transfect TFPI gene into vessel wall cells, thereby inhibiting restenosis without obvious side effect in the rabbit carotid artery model.
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Affiliation(s)
- Mingyu Shi
- Department of Cardiovasology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Feng Yin
- Department of Cardiovasology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongyue Gu
- Department of Cardiovasology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jing Zhu
- Department of Cardiovasology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xinhua Yin
- Department of Cardiovasology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
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98
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Ichikawa J, Inoue R. TRPC6 regulates cell cycle progression by modulating membrane potential in bone marrow stromal cells. Br J Pharmacol 2015; 171:5280-94. [PMID: 25041367 DOI: 10.1111/bph.12840] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 06/26/2014] [Accepted: 07/01/2014] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND AND PURPOSE Ca(2+) influx is important for cell cycle progression, but the mechanisms involved seem to vary. We investigated the potential roles of transient receptor potential (TRP) channels and store-operated Ca(2+) entry (SOCE)-related molecules STIM (stromal interaction molecule)/Orai in the cell cycle progression of rat bone marrow stromal cells (BMSCs), a reliable therapeutic resource for regenerative medicine. EXPERIMENTAL APPROACH PCR and immunoblot analyses were used to examine mRNA and protein levels, fluorescence imaging and patch clamping for Ca(2+) influx and membrane potential measurements, and flow cytometry for cell cycle analysis. KEY RESULTS Cell cycle synchronization of BMSCs revealed S phase-specific enhancement of TRPC1, STIM and Orai mRNA and protein expression. In contrast, TRPC6 expression decreased in the S phase and increased in the G1 phase. Resting membrane potential (RMP) of BMSCs was most negative and positive in the S and G1 phases, respectively, and was accompanied by an enhancement and attenuation of SOCE respectively. Chemically depolarizing/hyperpolarizing the membrane erased these differences in SOCE magnitude during the cell cycle. siRNA knockdown of TRPC6 produced a negative shift in RMP, increased SOCE and caused redistribution of BMSCs with increased populations in the S and G2 /M phases and accumulation of cyclins A2 and B1. A low concentration of Gd(3+) (1 μM) suppressed BMSC proliferation at its concentration to inhibit SOC channels relatively specifically. CONCLUSIONS AND IMPLICATIONS TRPC6, by changing the membrane potential, plays a pivotal role in controlling the SOCE magnitude, which is critical for cell cycle progression of BMSCs. This finding provides a new therapeutic strategy for regulating BMSC proliferation.
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Affiliation(s)
- Jun Ichikawa
- Department of Physiology, School of Medicine, Fukuoka University, Fukuoka, Japan
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99
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Wang JY, Sun J, Huang MY, Wang YS, Hou MF, Sun Y, He H, Krishna N, Chiu SJ, Lin S, Yang S, Chang WC. STIM1 overexpression promotes colorectal cancer progression, cell motility and COX-2 expression. Oncogene 2015; 34:4358-67. [PMID: 25381814 PMCID: PMC4426254 DOI: 10.1038/onc.2014.366] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 09/11/2014] [Accepted: 09/19/2014] [Indexed: 12/16/2022]
Abstract
Tumor metastasis is the major cause of death among cancer patients, with >90% of cancer-related death attributable to the spreading of metastatic cells to secondary organs. Store-operated Ca(2+) entry (SOCE) is the predominant Ca(2+) entry mechanism in most cancer cells, and stromal interaction molecule 1 (STIM1) is the endoplasmic reticulum (ER) Ca(2+) sensor for store-operated channels. Here we reported that the STIM1 was overexpressed in colorectal cancer (CRC) patients. STIM1 overexpression in CRC was significantly associated with tumor size, depth of invasion, lymph node metastasis status and serum levels of carcinoembryonic antigen. Furthermore, ectopic expression of STIM1 promoted CRC cell motility, while depletion of STIM1 with short hairpin RNA inhibited CRC cell migration. Our data further suggested that STIM1 promoted CRC cell migration through increasing the expression of cyclooxygenase-2 (COX-2) and production of prostaglandin E2 (PGE2). Importantly, ectopically expressed COX-2 or exogenous PGE2 were able to rescue migration defect in STIM1 knockdown CRC cells, and inhibition of COX-2 with ibuprofen and indomethacin abrogated STIM1-mediated CRC cell motility. In short, our data provided clinicopathological significance for STIM1 and SOCE in CRC progression, and implicated a role for COX-2 in STIM1-mediated CRC metastasis. Our studies also suggested a new approach to inhibit STIM1-mediated metastasis with COX-2 inhibitors.
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Affiliation(s)
- Jaw-Yuan Wang
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Division of Gastrointestinal and General Surgery, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Department of Radiation Oncology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Jianwei Sun
- Comprehensive Melanoma Research Center, Department of Tumor Biology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Ming-Yii Huang
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Department of Radiation Oncology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Radiation Oncology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yu-Shiuan Wang
- Department of Genomic Medicine, Faculty of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Ming-Feng Hou
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Department of Surgery, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Yan Sun
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Huifang He
- Comprehensive Melanoma Research Center, Department of Tumor Biology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Niveditha Krishna
- Comprehensive Melanoma Research Center, Department of Tumor Biology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Siou-Jin Chiu
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Master Program for Clinical Pharmacogenomics and Pharmacoproteomics, School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Shengchen Lin
- Comprehensive Melanoma Research Center, Department of Tumor Biology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Shengyu Yang
- Comprehensive Melanoma Research Center, Department of Tumor Biology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Wei-Chiao Chang
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Department of Clinical Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- Master Program for Clinical Pharmacogenomics and Pharmacoproteomics, School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
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100
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Xu Y, Zhang S, Niu H, Ye Y, Hu F, Chen S, Li X, Luo X, Jiang S, Liu Y, Chen Y, Li J, Xiang R, Li N. STIM1 accelerates cell senescence in a remodeled microenvironment but enhances the epithelial-to-mesenchymal transition in prostate cancer. Sci Rep 2015; 5:11754. [PMID: 26257076 PMCID: PMC4530453 DOI: 10.1038/srep11754] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 06/01/2015] [Indexed: 12/19/2022] Open
Abstract
The importance of store-operated Ca2+ entry (SOCE) and the role of its key molecular regulators, STIM1 and ORAI1, in the development of cancer are emerging. Here, we report an unexpected dual function of SOCE in prostate cancer progression by revealing a decrease in the expression of STIM1 in human hyperplasia and tumor tissues of high histological grade and by demonstrating that STIM1 and ORAI1 inhibit cell growth by arresting the G0/G1 phase and enhancing cell senescence in human prostate cancer cells. In addition, STIM1 and ORAI1 inhibited NF-κB signaling and remodeled the tumor microenvironment by reducing the formation of M2 phenotype macrophages, possibly creating an unfavorable tumor microenvironment and inhibiting cancer development. However, STIM1 also promoted cell migration and the epithelial-to-mesenchymal transition by activating TGF-β, Snail and Wnt/β-Catenin pathways. Thus, our study revealed novel regulatory effects and the mechanisms by which STIM1 affects cell senescence, tumor migration and the tumor microenvironment, revealing that STIM1 has multiple functions in prostate cancer cells.
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Affiliation(s)
- Yingxi Xu
- 1] School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China [2] State Key Lab of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences, Tianjin 300020, China
| | - Shu Zhang
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Haiying Niu
- Department of Obstetrics and Gynecology, First Central Hospital Clinic Institute, Tianjin Medical University, 24 Fukang Road, Tianjin 300192 China
| | - Yujie Ye
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Fen Hu
- School of Physics, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Si Chen
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Xuefei Li
- Beijing Health Vocational College, 94 Nanhengxijie Street, Beijing, 100053 China
| | - Xiaohe Luo
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Shan Jiang
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Yanhua Liu
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Yanan Chen
- School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Junying Li
- Department of Obstetrics and Gynecology, First Central Hospital Clinic Institute, Tianjin Medical University, 24 Fukang Road, Tianjin 300192 China
| | - Rong Xiang
- 1] School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China [2] Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Tianjin 300071, China [3] Collaborative Innovation Center for Biotherapy, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Na Li
- 1] School of Medicine, Nankai University, 94 Weijin Road, Tianjin 300071, China [2] Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Tianjin 300071, China [3] Collaborative Innovation Center for Biotherapy, Nankai University, 94 Weijin Road, Tianjin 300071, China
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