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Nolze A, Matern S, Grossmann C. Calcineurin Is a Universal Regulator of Vessel Function-Focus on Vascular Smooth Muscle Cells. Cells 2023; 12:2269. [PMID: 37759492 PMCID: PMC10528183 DOI: 10.3390/cells12182269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Calcineurin, a serine/threonine phosphatase regulating transcription factors like NFaT and CREB, is well known for its immune modulatory effects and role in cardiac hypertrophy. Results from experiments with calcineurin knockout animals and calcineurin inhibitors indicate that calcineurin also plays a crucial role in vascular function, especially in vascular smooth muscle cells (VSMCs). In the aorta, calcineurin stimulates the proliferation and migration of VSMCs in response to vascular injury or angiotensin II administration, leading to pathological vessel wall thickening. In the heart, calcineurin mediates coronary artery formation and VSMC differentiation, which are crucial for proper heart development. In pulmonary VSMCs, calcineurin/NFaT signaling regulates the release of Ca2+, resulting in increased vascular tone followed by pulmonary arterial hypertension. In renal VSMCs, calcineurin regulates extracellular matrix secretion promoting fibrosis development. In the mesenteric and cerebral arteries, calcineurin mediates a phenotypic switch of VSMCs leading to altered cell function. Gaining deeper insights into the underlying mechanisms of calcineurin signaling will help researchers to understand developmental and pathogenetical aspects of the vasculature. In this review, we provide an overview of the physiological function and pathophysiology of calcineurin in the vascular system with a focus on vascular smooth muscle cells in different organs. Overall, there are indications that under certain pathological settings reduced calcineurin activity seems to be beneficial for cardiovascular health.
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Affiliation(s)
| | | | - Claudia Grossmann
- Julius Bernstein Institute of Physiology, Martin Luther University Halle-Wittenberg, 06112 Halle (Saale), Germany
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2
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Ueyama H, Kuno T, Takagi H, Alvarez P, Asleh R, Briasoulis A. Maintenance immunosuppression in heart transplantation: insights from network meta-analysis of various immunosuppression regimens. Heart Fail Rev 2022; 27:869-877. [PMID: 32424550 DOI: 10.1007/s10741-020-09967-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Previous studies have reported superiority of mechanistic target-of-rapamycin (mTOR) antagonists (mTA) over calcineurin inhibitors (CNI) as part of maintenance immunosuppression (IS) in mitigating cardiac allograft vasculopathy (CAV) after heart transplantation (HT). MEDLINE and EMBASE were searched through October 2019 for studies comparing maintenance IS with mTA + antimetabolites (AM), CNI + mTA or CNI + AM post HT. The main outcomes were all-cause mortality, CAV, acute rejection, CMV infections, and change in eGFR. To compare different IS antagonists, a random-effects network meta-analysis was performed. We used p-scores to rank best treatments per outcome. Our search identified fifteen eligible studies (5 studies comparing mTA + AM vs. CNI + AM, 9 comparing CNI + mTA vs. CNI + AM, 1 comparing mTA + AM vs. CNI + mTA, 8 using everolimus and 7 sirolimus as mTA) reporting the selected outcomes. We did not identify any statistical difference in all-cause mortality among the three IS regimens without heterogeneity among studies. CAV rates were significantly lower with CNI + mTA (odds ratio [OR] 0.53, 95% confidence interval [CI] 0.3-0.92). Acute rejection rates were significantly lower with CNI + AM (OR 0.26, 95% CI 0.12-0.56) and with CNI + mTA (OR 0.16, 95% CI 0.07-0.33) compared with mTA + AM without significant heterogeneity (I2 = 43%, p = 0.9). CMV infections were significantly lower with mTA + AM (OR 0.13, 95% CI 0.03-0.46) and with CNI + mTA (OR 0.27, 95% CI 0.2-0.38) compared with CNI + AM without heterogeneity. mTA + AM led to higher eGFR compared with CNI + AM (9.06 ml/min/1.73 m2, 95% CI 3.15-14.97) and CNI + Mta (9.64 ml/min/1.73 m2, 95% CI 0.91-18.36), but the heterogeneity among studies was significant. CNI + mTA ranked better for CAV (p = 0.78), and acute rejection (p = 0.99) while mTA + AM for CMV infection (p = 0.94) and improvement in renal function (p = 0.93) than other regimens. Different IS regimens have similar effects on survival post HT, but CNI + mTA was associated with lower CAV rates, and acute rejection, while mTA + AM with less CMV infection post HT.
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Affiliation(s)
- Hiroki Ueyama
- Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Toshiki Kuno
- Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Hisato Takagi
- Department of Cardiovascular Surgery, Shizuoka Medical Center, Shizuoka, Japan
| | - Paulino Alvarez
- Division of Cardiovascular Diseases, Section of Heart Failure and Transplant, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, Iowa City, IA, 52242, USA
| | - Rabea Asleh
- Division of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Alexandros Briasoulis
- Division of Cardiovascular Diseases, Section of Heart Failure and Transplant, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, Iowa City, IA, 52242, USA.
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3
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Li P, Rubaiy HN, Chen GL, Hallett T, Zaibi N, Zeng B, Saurabh R, Xu SZ. Mibefradil, a T-type Ca 2+ channel blocker also blocks Orai channels by action at the extracellular surface. Br J Pharmacol 2019; 176:3845-3856. [PMID: 31271653 DOI: 10.1111/bph.14788] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 06/21/2019] [Accepted: 06/28/2019] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND AND PURPOSE Mibefradil, a T-type Ca2+ channel blocker, has been investigated for treating solid tumours. However, its underlying mechanisms are still unclear. Here, we have investigated the pharmacological actions of mibefradil on Orai store-operated Ca2+ channels. EXPERIMENTAL APPROACH Human Orai1-3 cDNAs in tetracycline-regulated pcDNA4/TO vectors were transfected into HEK293 T-REx cells with stromal interaction molecule 1 (STIM1) stable expression. The Orai currents were recorded by whole-cell and excised-membrane patch clamp. Ca2+ influx or release was measured by Fura-PE3/AM. Cell growth and death were monitored by WST-1, LDH assays and flow cytometry. KEY RESULTS Mibefradil inhibited Orai1, Orai2, and Orai3 currents dose-dependently. The IC50 for Orai1, Orai2, and Orai3 channels was 52.6, 14.1, and 3.8 μM respectively. Outside-out patch demonstrated that perfusion of 10-μM mibefradil to the extracellular surface completely blocked Orai3 currents and single channel activity evoked by 2-APB. Intracellular application of mibefradil did not alter Orai3 channel activity. Mibefradil at higher concentrations (>50 μM) inhibited Ca2+ release but had no effect on cytosolic STIM1 translocation evoked by thapsigargin. Inhibition on Orai channels by mibefradil was structure-related, as other T-type Ca2+ channel blockers with different structures, such as ethosuximide and ML218, had no or minimal effects on Orai channels. Moreover, mibefradil inhibited cell proliferation, induced apoptosis, and arrested cell cycle progression. CONCLUSIONS AND IMPLICATIONS Mibefradil is a potent cell surface blocker of Orai channels, demonstrating a new pharmacological action of this compound in regulating cell growth and death, which could be relevant to its anti-cancer activity.
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Affiliation(s)
- Pengyun Li
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK.,Key Laboratory of Medical Electrophysiology, Ministry of Education, and Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Hussein N Rubaiy
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK
| | - Gui-Lan Chen
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK.,Key Laboratory of Medical Electrophysiology, Ministry of Education, and Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Thomas Hallett
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK
| | - Nawel Zaibi
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK
| | - Bo Zeng
- Key Laboratory of Medical Electrophysiology, Ministry of Education, and Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Rahul Saurabh
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK
| | - Shang-Zhong Xu
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull, UK
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4
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Parker T, Wang KW, Manning D, Dart C. Soluble adenylyl cyclase links Ca 2+ entry to Ca 2+/cAMP-response element binding protein (CREB) activation in vascular smooth muscle. Sci Rep 2019; 9:7317. [PMID: 31086231 PMCID: PMC6514005 DOI: 10.1038/s41598-019-43821-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 04/30/2019] [Indexed: 12/21/2022] Open
Abstract
Ca2+-transcription coupling controls gene expression patterns that define vascular smooth muscle cell (VSMC) phenotype. Although not well understood this allows normally contractile VSMCs to become proliferative following vessel injury, a process essential for repair but which also contributes to vascular remodelling, atherogenesis and restenosis. Here we show that the Ca2+/HCO3--sensitive enzyme, soluble adenylyl cyclase (sAC), links Ca2+ influx in human coronary artery smooth muscle cells (hCASMCs) to 3',5'-cyclic adenosine monophosphate (cAMP) generation and phosphorylation of the transcription factor Ca2+/cAMP response element binding protein (CREB). Store-operated Ca2+ entry (SOCE) into hCASMCs expressing the FRET-based cAMP biosensor H187 induced a rise in cAMP that mirrored cytosolic [Ca2+]. SOCE also activated the cAMP effector, protein kinase A (PKA), as determined by the PKA reporter, AKAR4-NES, and induced phosphorylation of vasodilator-stimulated phosphoprotein (VASP) and CREB. Transmembrane adenylyl cyclase inhibition had no effect on the SOCE-induced rise in cAMP, while sAC inhibition abolished SOCE-generated cAMP and significantly reduced SOCE-induced VASP and CREB phosphorylation. This suggests that SOCE in hCASMCs activates sAC which in turn activates the cAMP/PKA/CREB axis. sAC, which is insensitive to G-protein modulation but responsive to Ca2+, pH and ATP, may therefore act as an overlooked regulatory node in vascular Ca2+-transcription coupling.
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Affiliation(s)
- Tony Parker
- Institute of Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, United Kingdom
| | - Kai-Wen Wang
- Institute of Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, United Kingdom
| | - Declan Manning
- Institute of Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, United Kingdom
| | - Caroline Dart
- Institute of Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, United Kingdom.
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5
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TRPC-mediated Ca 2+ signaling and control of cellular functions. Semin Cell Dev Biol 2019; 94:28-39. [PMID: 30738858 DOI: 10.1016/j.semcdb.2019.02.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/30/2019] [Accepted: 02/06/2019] [Indexed: 12/15/2022]
Abstract
Canonical members of the TRP superfamily of ion channels have long been recognized as key elements of Ca2+ handling in a plethora of cell types. The emerging role of TRPC channels in human physiopathology has generated considerable interest in their pharmacological targeting, which requires detailed understanding of their molecular function. Although consent has been reached that receptor-phospholipase C (PLC) pathways and generation of lipid mediators constitute the prominent upstream signaling process that governs channel activity, multimodal sensing features of TRPC complexes have been demonstrated repeatedly. Downstream signaling by TRPC channels is similarly complex and involves the generation of local and global cellular Ca2+ rises, which are well-defined in space and time to govern specific cellular functions. These TRPC-mediated Ca2+ signals rely in part on Ca2+ permeation through the channels, but are essentially complemented by secondary mechanisms such as Ca2+ mobilization from storage sites and Na+/Ca2+ exchange, which involve coordinated interaction with signaling partners. Consequently, the control of cell functions by TRPC molecules is critically determined by dynamic assembly and subcellular targeting of the TRPC complexes. The very recent availability of high-resolution structure information on TRPC channel complexes has paved the way towards a comprehensive understanding of signal transduction by TRPC channels. Here, we summarize current concepts of cation permeation in TRPC complexes, TRPC-mediated shaping of cellular Ca2+ signals and the associated control of specific cell functions.
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6
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Kondo C, Clark RB, Al‐Jezani N, Kim TY, Belke D, Banderali U, Szerencsei RT, Jalloul AH, Schnetkamp PPM, Spitzer KW, Giles WR. ATP triggers a robust intracellular [Ca 2+ ]-mediated signalling pathway in human synovial fibroblasts. Exp Physiol 2018; 103:1101-1122. [PMID: 29791754 DOI: 10.1113/ep086851] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 04/26/2018] [Indexed: 01/05/2023]
Abstract
NEW FINDINGS What is the central question of this study? What are the main [Ca2+ ]i signalling pathways activated by ATP in human synovial fibroblasts? What is the main finding and its importance? In human synovial fibroblasts ATP acts through a linked G-protein (Gq ) and phospholipase C signalling mechanism to produce IP3 , which then markedly enhances release of Ca2+ from the endoplasmic reticulum. These results provide new information for the detection of early pathophysiology of arthritis. ABSTRACT In human articular joints, synovial fibroblasts (HSFs) have essential physiological functions that include synthesis and secretion of components of the extracellular matrix and essential articular joint lubricants, as well as release of paracrine substances such as ATP. Although the molecular and cellular processes that lead to a rheumatoid arthritis (RA) phenotype are not fully understood, HSF cells exhibit significant changes during this disease progression. The effects of ATP on HSFs were studied by monitoring changes in intracellular Ca2+ ([Ca2+ ]i ), and measuring electrophysiological properties. ATP application to HSF cell populations that had been enzymatically released from 2-D cell culture revealed that ATP (10-100 μm), or its analogues UTP or ADP, consistently produced a large transient increase in [Ca2+ ]i . These changes (i) were initiated by activation of the P2 Y purinergic receptor family, (ii) required Gq -mediated signal transduction, (iii) did not involve a transmembrane Ca2+ influx, but instead (iv) arose almost entirely from activation of endoplasmic reticulum (ER)-localized inositol 1,4,5-trisphosphate (IP3 ) receptors that triggered Ca2+ release from the ER. Corresponding single cell electrophysiological studies revealed that these ATP effects (i) were insensitive to [Ca2+ ]o removal, (ii) involved an IP3 -mediated intracellular Ca2+ release process, and (iii) strongly turned on Ca2+ -activated K+ current(s) that significantly hyperpolarized these cells. Application of histamine produced very similar effects in these HSF cells. Since ATP is a known paracrine agonist and histamine is released early in the inflammatory response, these findings may contribute to identification of early steps/defects in the initiation and progression of RA.
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Affiliation(s)
- C Kondo
- Faculty of Kinesiology, University of Calgary, Calgary, Canada
| | - R B Clark
- Faculty of Kinesiology, University of Calgary, Calgary, Canada
| | | | - T Y Kim
- Faculty of Kinesiology, University of Calgary, Calgary, Canada
| | - D Belke
- Cumming School of Medicine, University of Calgary, Calgary, Canada
| | | | - R T Szerencsei
- Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - A H Jalloul
- Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - P P M Schnetkamp
- Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - K W Spitzer
- Nora Eccles Harrison Cardiovascular Centre, Salt Lake City, UT, USA
| | - W R Giles
- Faculty of Kinesiology, University of Calgary, Calgary, Canada.,Faculty of Medicine, University of Calgary, Calgary, Canada
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7
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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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8
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Yi M, Wei T, Wang Y, Lu Q, Chen G, Gao X, Geller HM, Chen H, Yu Z. The potassium channel KCa3.1 constitutes a pharmacological target for astrogliosis associated with ischemia stroke. J Neuroinflammation 2017; 14:203. [PMID: 29037241 PMCID: PMC5644250 DOI: 10.1186/s12974-017-0973-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 09/27/2017] [Indexed: 12/11/2022] Open
Abstract
Background Reactive astrogliosis is one of the significantly pathological features in ischemic stroke accompanied with changes in gene expression, morphology, and proliferation. KCa3.1 was involved in TGF-β-induced astrogliosis in vitro and also contributed to astrogliosis-mediated neuroinflammation in neurodegeneration disease. Methods Wild type mice and KCa3.1−/− mice were subjected to permanent middle cerebral artery occlusion (pMCAO) to evaluate the infarct areas by 2,3,5-triphenyltetrazolium hydrochloride staining and neurological deficit. KCa3.1 channels expression and cell localization in the brain of pMCAO mice model were measured by immunoblotting and immunostaining. Glia activation and neuron loss was measured by immunostaining. DiBAC4 (3) and Fluo-4AM were used to measure membrane potential and cytosolic Ca2+ level in oxygen-glucose deprivation induced reactive astrocytes in vitro. Results Immunohistochemistry on pMCAO mice infarcts showed strong upregulation of KCa3.1 immunoreactivity in reactive astrogliosis. KCa3.1−/− mice exhibited significantly smaller infarct areas on pMCAO and improved neurological deficit. Both activated gliosis and neuronal loss were attenuated in KCa3.1−/− pMCAO mice. In the primary cultured astrocytes, the expressions of KCa3.1 and TRPV4 were increased associated with upregulation of astrogliosis marker GFAP induced by oxygen-glucose deprivation. The activation of KCa3.1 hyperpolarized membrane potential and, by promoting the driving force for calcium, induced calcium entry through TRPV4, a cation channel of the transient receptor potential family. Double-labeled staining showed that KCa3.1 and TRPV4 channels co-localized in astrocytes. Blockade of KCa3.1 or TRPV4 inhibited the phenotype switch of reactive astrogliosis. Conclusions Our data suggested that KCa3.1 inhibition might represent a promising therapeutic strategy for ischemia stroke. Electronic supplementary material The online version of this article (10.1186/s12974-017-0973-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mengni Yi
- Department of Pharmacology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Tianjiao Wei
- Department of Pharmacology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Yanxia Wang
- Experimental Teaching Center of Basic Medicine, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Qin Lu
- Department of Pharmacology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Gaoxian Chen
- Department of Pharmacology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xiaoling Gao
- Department of Pharmacology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Herbert M Geller
- Developmental Neurobiology Section, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
| | - Hongzhuan Chen
- Department of Pharmacology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Zhihua Yu
- Department of Pharmacology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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9
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Yu Z, Yi M, Wei T, Gao X, Chen H. KCa3.1 Inhibition Switches the Astrocyte Phenotype during Astrogliosis Associated with Ischemic Stroke Via Endoplasmic Reticulum Stress and MAPK Signaling Pathways. Front Cell Neurosci 2017; 11:319. [PMID: 29075181 PMCID: PMC5643415 DOI: 10.3389/fncel.2017.00319] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 09/26/2017] [Indexed: 11/13/2022] Open
Abstract
Ischemic stroke is a devastating neurological disease that can initiate a phenotype switch in astrocytes. Reactive astrogliosis is a significant pathological feature of ischemic stroke and is accompanied by changes in gene expression, hypertrophied processes and proliferation. The intermediate-conductance Ca2+-activated potassium channel KCa3.1 has been shown to contribute to astrogliosis-induced neuroinflammation in Alzheimer’s disease (AD). We here present evidence, from both astrocytes subjected to oxygen–glucose deprivation (OGD) and from the brains of mice subjected to permanent middle cerebral artery occlusion (pMCAO), that KCa3.1 represents a valid pharmacological target for modulation of astrocyte phenotype during astrogliosis caused by ischemic stroke. In the primary cultured astrocytes, OGD led to increased expression of KCa3.1, which was associated with upregulation of the astrogliosis marker, glial fibrillary acidic protein (GFAP). Pharmacological blockade or genetic deletion of KCa3.1 suppressed OGD-induced up-regulation of GFAP, endoplasmic reticulum (ER) stress marker 78 kDa glucose-regulated protein (GRP78) and phosphorylated eIF-2α through the c-Jun/JNK and ERK1/2 signaling pathways. We next investigated the effect of genetic deletion of KCa3.1 in the pMCAO mouse model. KCa3.1 deficiency also attenuated ER stress and astrogliosis through c-Jun/JNK and ERK1/2 signaling pathways following pMCAO in KCa3.1−/− mice. Our data suggest that blockade of KCa3.1 might represent a promising strategy for the treatment of ischemic stroke.
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Affiliation(s)
- Zhihua Yu
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mengni Yi
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tianjiao Wei
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoling Gao
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hongzhuan Chen
- Department of Pharmacology and Chemical Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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10
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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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11
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Wang HB, Zeng P, Yang J, Yang J, Liu XW. Paclitaxel-eluting stents versus sirolimus-eluting stents in patients with diabetes mellitus undergoing percutaneous coronary intervention: a systematic review and meta-analysis of randomized controlled trials. Intern Emerg Med 2016; 11:1005-13. [PMID: 27631549 DOI: 10.1007/s11739-016-1529-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 08/23/2016] [Indexed: 11/24/2022]
Abstract
Uncertainties exist with regard to the efficacy of paclitaxel-eluting stents (PES) versus sirolimus-eluting stents (SES) in diabetes patients undergoing percutaneous coronary intervention (PCI). We performed a meta-analysis of randomized controlled trials (RCTs) to investigate the outcome of PES versus SES in diabetes patients undergoing PCI. A literature search was started, and we found all studies conducted from 2005 to 2016. We systematically searched the literature through the MEDLINE, Cochrane library, and EMBASE. Quality assessments were evaluated with the Jadad scale. Data were extracted considering the characteristics of efficacy and the safety of the designs. 12 RCTs satisfy the inclusion criteria. There is a significant decrease of target lesion revascularization (TLR) (MD = 0.65, 95 % CI = 0.42-1.00, P = 0.05) in a year and more than 1 year (MD = 0.54, 95 % CI = 0.37-0.78, P = 0.00010). A significant decrease of target vessel revascularization (TVR) in more than 1 year is (MD = 0.62, 95 % CI = 0.47-0.81, P = 0.0004). A significant decrease of major adverse cardiac events (MACE) in more than 1 year is (MD = 0.73, 95 % CI = 0.60-0.89, P = 0.002). Nevertheless, there is no significant difference in mortality (MD = 0.85, 95 % CI = 0.66-1.11, P = 0.24), stent thrombosis (ST) (MD = 0.65, 95 % CI = 0.35-1.21, P = 0.18), or myocardial infarction (MD = 1.04, 95 % CI = 0.71-1.51, P = 0.84). SES may be more significant in decreasing TLR, TVR, and MACE than PES without significantly increasing mortality, ST and MI in diabetes patients.
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Affiliation(s)
- Hui-Bo Wang
- Department of Cardiology, The First College of Clinical Medical Sciences, Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, 443000, Hubei, China
| | - Ping Zeng
- Department of Cardiology, The First College of Clinical Medical Sciences, Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, 443000, Hubei, China
| | - Jun Yang
- Department of Cardiology, The First College of Clinical Medical Sciences, Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, 443000, Hubei, China.
| | - Jian Yang
- Department of Cardiology, The First College of Clinical Medical Sciences, Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, 443000, Hubei, China.
| | - Xiao-Wen Liu
- Department of Cardiology, The First College of Clinical Medical Sciences, Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, 443000, Hubei, China
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12
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Hussner J, Sünwoldt J, Seibert I, Gliesche DG, Zu Schwabedissen HEM. Pimecrolimus increases the expression of interferon-inducible genes that modulate human coronary artery cells proliferation. Eur J Pharmacol 2016; 784:137-46. [PMID: 27212382 DOI: 10.1016/j.ejphar.2016.05.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 04/21/2016] [Accepted: 05/18/2016] [Indexed: 10/21/2022]
Abstract
The pharmacodynamics of the loaded compounds defines clinical failure or success of a drug-eluting device. Various limus derivatives have entered clinics due to the observed positive outcome after stent implantation, which is explained by their antiproliferative activity resulting from inhibition of the cytosolic immunophilin FK506-binding protein 12. Although pimecrolimus also binds to this protein, pimecrolimus-eluting stents failed in clinics. However, despite its impact on T lymphocytes little is known about the pharmacodynamics of pimecrolimus in cultured human coronary artery cells. We were able to show that pimecrolimus exerts antiproliferative activity in human smooth muscle and endothelial cells. Furthermore in those cells pimecrolimus induced transcription of interferon-inducible genes which in part are known to modulate cell proliferation. Modulation of gene expression may be part of an interaction between calcineurin, the downstream target of the pimecrolimus/FK506-binding protein 12-complex, and the toll-like receptor 4. In accordance are our findings showing that silencing of toll-like receptor 4 by siRNA in A549 a lung carcinoma cell line reduced the activation of interferon-inducible genes upon pimecrolimus treatment in those cells. Based on our findings we hypothesize that calcineurin inhibition may induce the toll-like receptor 4 mediated activation of type I interferon signaling finally inducing the observed effect in endothelial and smooth muscle cells. The crosstalk of interferon and toll-like receptor signaling may be a molecular mechanism that contributed to the failure of pimecrolimus-eluting stents in humans.
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Affiliation(s)
- Janine Hussner
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Juliane Sünwoldt
- Institute of Pharmacology, Center of Drug Absorption and Transport, University Medicine, Ernst Moritz Arndt University Greifswald, Felix-Hausdorff-Strasse 3, 17489 Greifswald, Germany
| | - Isabell Seibert
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Daniel G Gliesche
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
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13
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Extracellular Calcium Has Multiple Targets to Control Cell Proliferation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 898:133-56. [DOI: 10.1007/978-3-319-26974-0_7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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14
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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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15
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Abstract
Store-operated calcium channels (SOCs) are a major pathway for calcium signaling in virtually all metozoan cells and serve a wide variety of functions ranging from gene expression, motility, and secretion to tissue and organ development and the immune response. SOCs are activated by the depletion of Ca(2+) from the endoplasmic reticulum (ER), triggered physiologically through stimulation of a diverse set of surface receptors. Over 15 years after the first characterization of SOCs through electrophysiology, the identification of the STIM proteins as ER Ca(2+) sensors and the Orai proteins as store-operated channels has enabled rapid progress in understanding the unique mechanism of store-operate calcium entry (SOCE). Depletion of Ca(2+) from the ER causes STIM to accumulate at ER-plasma membrane (PM) junctions where it traps and activates Orai channels diffusing in the closely apposed PM. Mutagenesis studies combined with recent structural insights about STIM and Orai proteins are now beginning to reveal the molecular underpinnings of these choreographic events. This review describes the major experimental advances underlying our current understanding of how ER Ca(2+) depletion is coupled to the activation of SOCs. Particular emphasis is placed on the molecular mechanisms of STIM and Orai activation, Orai channel properties, modulation of STIM and Orai function, pharmacological inhibitors of SOCE, and the functions of STIM and Orai in physiology and disease.
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Affiliation(s)
- Murali Prakriya
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; and Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California
| | - Richard S Lewis
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; and Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California
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16
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Vashisht A, Trebak M, Motiani RK. STIM and Orai proteins as novel targets for cancer therapy. A Review in the Theme: Cell and Molecular Processes in Cancer Metastasis. Am J Physiol Cell Physiol 2015; 309:C457-69. [PMID: 26017146 DOI: 10.1152/ajpcell.00064.2015] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Calcium (Ca(2+)) regulates a plethora of cellular functions including hallmarks of cancer development such as cell cycle progression and cellular migration. Receptor-regulated calcium rise in nonexcitable cells occurs through store-dependent as well as store-independent Ca(2+) entry pathways. Stromal interaction molecules (STIM) and Orai proteins have been identified as critical constituents of both these Ca(2+) influx pathways. STIMs and Orais have emerged as targets for cancer therapeutics as their altered expression and function have been shown to contribute to tumorigenesis. Recent data demonstrate that they play a vital role in development and metastasis of a variety of tumor types including breast, prostate, cervical, colorectal, brain, and skin tumors. In this review, we will retrospect the data supporting a key role for STIM1, STIM2, Orai1, and Orai3 proteins in tumorigenesis and discuss the potential of targeting these proteins for cancer therapy.
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Affiliation(s)
- Ayushi Vashisht
- Systems Biology Group, CSIR-Institute of Genomics and Integrative Biology, New Delhi, India; and
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, The Pennsylvania State University School of Medicine, Hershey, Pennsylvania
| | - Rajender K Motiani
- Systems Biology Group, CSIR-Institute of Genomics and Integrative Biology, New Delhi, India; and
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17
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Tang H, Chen J, Fraidenburg DR, Song S, Sysol JR, Drennan AR, Offermanns S, Ye RD, Bonini MG, Minshall RD, Garcia JGN, Machado RF, Makino A, Yuan JXJ. Deficiency of Akt1, but not Akt2, attenuates the development of pulmonary hypertension. Am J Physiol Lung Cell Mol Physiol 2014; 308:L208-20. [PMID: 25416384 DOI: 10.1152/ajplung.00242.2014] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Pulmonary vascular remodeling, mainly attributable to enhanced pulmonary arterial smooth muscle cell proliferation and migration, is a major cause for elevated pulmonary vascular resistance and pulmonary arterial pressure in patients with pulmonary hypertension. The signaling cascade through Akt, comprised of three isoforms (Akt1-3) with distinct but overlapping functions, is involved in regulating cell proliferation and migration. This study aims to investigate whether the Akt/mammalian target of rapamycin (mTOR) pathway, and particularly which Akt isoform, contributes to the development and progression of pulmonary vascular remodeling in hypoxia-induced pulmonary hypertension (HPH). Compared with the wild-type littermates, Akt1(-/-) mice were protected against the development and progression of chronic HPH, whereas Akt2(-/-) mice did not demonstrate any significant protection against the development of HPH. Furthermore, pulmonary vascular remodeling was significantly attenuated in the Akt1(-/-) mice, with no significant effect noted in the Akt2(-/-) mice after chronic exposure to normobaric hypoxia (10% O2). Overexpression of the upstream repressor of Akt signaling, phosphatase and tensin homolog deleted on chromosome 10 (PTEN), and conditional and inducible knockout of mTOR in smooth muscle cells were also shown to attenuate the rise in right ventricular systolic pressure and the development of right ventricular hypertrophy. In conclusion, Akt isoforms appear to have a unique function within the pulmonary vasculature, with the Akt1 isoform having a dominant role in pulmonary vascular remodeling associated with HPH. The PTEN/Akt1/mTOR signaling pathway will continue to be a critical area of study in the pathogenesis of pulmonary hypertension, and specific Akt isoforms may help specify therapeutic targets for the treatment of pulmonary hypertension.
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Affiliation(s)
- Haiyang Tang
- Department of Medicine, Division of Translational and Regenerative Medicine, The University of Arizona College of Medicine, Tucson, Arizona; Department of Physiology, The University of Arizona College of Medicine, Tucson, Arizona; Department of Medicine, Division of Pulmonary, Critical Care, Sleep and Allergy Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Jiwang Chen
- Department of Medicine, Division of Pulmonary, Critical Care, Sleep and Allergy Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Dustin R Fraidenburg
- Department of Medicine, Division of Pulmonary, Critical Care, Sleep and Allergy Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Shanshan Song
- Department of Medicine, Division of Translational and Regenerative Medicine, The University of Arizona College of Medicine, Tucson, Arizona; Department of Physiology, The University of Arizona College of Medicine, Tucson, Arizona; Department of Medicine, Division of Pulmonary, Critical Care, Sleep and Allergy Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Justin R Sysol
- Department of Medicine, Division of Pulmonary, Critical Care, Sleep and Allergy Medicine, University of Illinois at Chicago, Chicago, Illinois; Department of Pharmacology, University of Illinois at Chicago, Chicago, Illinois; and
| | - Abigail R Drennan
- Department of Medicine, Division of Pulmonary, Critical Care, Sleep and Allergy Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Stefan Offermanns
- Department of Pharmacology, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Richard D Ye
- Department of Pharmacology, University of Illinois at Chicago, Chicago, Illinois; and
| | - Marcelo G Bonini
- Department of Pharmacology, University of Illinois at Chicago, Chicago, Illinois; and
| | - Richard D Minshall
- Department of Pharmacology, University of Illinois at Chicago, Chicago, Illinois; and
| | - Joe G N Garcia
- Department of Medicine, Division of Translational and Regenerative Medicine, The University of Arizona College of Medicine, Tucson, Arizona
| | - Roberto F Machado
- Department of Medicine, Division of Pulmonary, Critical Care, Sleep and Allergy Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Ayako Makino
- Department of Physiology, The University of Arizona College of Medicine, Tucson, Arizona
| | - Jason X-J Yuan
- Department of Medicine, Division of Translational and Regenerative Medicine, The University of Arizona College of Medicine, Tucson, Arizona; Department of Physiology, The University of Arizona College of Medicine, Tucson, Arizona; Department of Medicine, Division of Pulmonary, Critical Care, Sleep and Allergy Medicine, University of Illinois at Chicago, Chicago, Illinois; Department of Pharmacology, University of Illinois at Chicago, Chicago, Illinois; and
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