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Torres-Rico M, García-Calvo V, Gironda-Martínez A, Pascual-Guerra J, García AG, Maneu V. Targeting calciumopathy for neuroprotection: focus on calcium channels Cav1, Orai1 and P2X7. Cell Calcium 2024; 123:102928. [PMID: 39003871 DOI: 10.1016/j.ceca.2024.102928] [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: 05/30/2024] [Revised: 07/02/2024] [Accepted: 07/05/2024] [Indexed: 07/16/2024]
Abstract
As the uncontrolled entry of calcium ions (Ca2+) through plasmalemmal calcium channels is a cell death trigger, the conjecture is here raised that mitigating such an excess of Ca2+ entry should rescue from death the vulnerable neurons in neurodegenerative diseases (NDDs). However, this supposition has failed in some clinical trials (CTs). Thus, a recent CT tested whether isradipine, a blocker of the Cav1 subtype of voltage-operated calcium channels (VOCCs), exerted a benefit in patients with Parkinson's disease (PD); however, outcomes were negative. This is one more of the hundreds of CTs done under the principle of one-drug-one-target, that have failed in Alzheimer's disease (AD) and other NDDs during the last three decades. As there are myriad calcium channels to let Ca2+ ions gain the cell cytosol, it seems reasonable to predict that blockade of Ca2+ entry through a single channel may not be capable of preventing the Ca2+ flood of cells by the uncontrolled Ca2+ entry. Furthermore, as Ca2+ signaling is involved in the regulation of myriad functions in different cell types, it seems also reasonable to guess that a therapy should be more efficient by targeting different cells with various drugs. Here, we propose to mitigate Ca2+ entry by the simultaneous partial blockade of three quite different subtypes of plasmalemmal calcium channels that is, the Cav1 subtype of VOCCs, the Orai1 store-operated calcium channel (SOCC), and the purinergic P2X7 calcium channel. All three channels are expressed in both microglia and neurons. Thus, by targeting the three channels with a combination of three drug blockers we expect favorable changes in some of the pathogenic features of NDDs, namely (i) to mitigate Ca2+ entry into microglia; (ii) to decrease the Ca2+-dependent microglia activation; (iii) to decrease the sustained neuroinflammation; (iv) to decrease the uncontrolled Ca2+ entry into neurons; (v) to rescue vulnerable neurons from death; and (vi) to delay disease progression. In this review we discuss the arguments underlying our triad hypothesis in the sense that the combination of three repositioned medicines targeting Cav1, Orai1, and P2X7 calcium channels could boost neuroprotection and delay the progression of AD and other NDDs.
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Affiliation(s)
| | | | - Adrián Gironda-Martínez
- Instituto Fundación Teófilo Hernando, Madrid, Spain; Departamento de Farmacología y Terapéutica, Universidad Autónoma de Madrid, Madrid, Spain
| | | | - Antonio G García
- Instituto Fundación Teófilo Hernando, Madrid, Spain; Departamento de Farmacología y Terapéutica, Universidad Autónoma de Madrid, Madrid, Spain; Facultad de Medicina, Instituto de Investigación Sanitaria del Hospital Universitario La Princesa, Universidad Autónoma de Madrid, Madrid, Spain.
| | - Victoria Maneu
- Departamento de Óptica, Farmacología y Anatomía, Universidad de Alicante, Alicante, Spain.
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2
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Ouologuem L, Bartel K. Endolysosomal transient receptor potential mucolipins and two-pore channels: implications for cancer immunity. Front Immunol 2024; 15:1389194. [PMID: 38840905 PMCID: PMC11150529 DOI: 10.3389/fimmu.2024.1389194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 05/09/2024] [Indexed: 06/07/2024] Open
Abstract
Past research has identified that cancer cells sustain several cancer hallmarks by impairing function of the endolysosomal system (ES). Thus, maintaining the functional integrity of endolysosomes is crucial, which heavily relies on two key protein families: soluble hydrolases and endolysosomal membrane proteins. Particularly members of the TPC (two-pore channel) and TRPML (transient receptor potential mucolipins) families have emerged as essential regulators of ES function as a potential target in cancer therapy. Targeting TPCs and TRPMLs has demonstrated significant impact on multiple cancer hallmarks, including proliferation, growth, migration, and angiogenesis both in vitro and in vivo. Notably, endosomes and lysosomes also actively participate in various immune regulatory mechanisms, such as phagocytosis, antigen presentation, and the release of proinflammatory mediators. Yet, knowledge about the role of TPCs and TRPMLs in immunity is scarce. This prompts a discussion regarding the potential role of endolysosomal ion channels in aiding cancers to evade immune surveillance and destruction. Specifically, understanding the interplay between endolysosomal ion channels and cancer immunity becomes crucial. Our review aims to comprehensively explore the current knowledge surrounding the roles of TPCs and TRPMLs in immunity, whilst emphasizing the critical need to elucidate their specific contributions to cancer immunity by pointing out current research gaps that should be addressed.
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Affiliation(s)
| | - Karin Bartel
- Department of Pharmacy, Drug Delivery, Ludwig-Maximilians-University Munich, Munich, Germany
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3
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Bacsa B, Hopl V, Derler I. Synthetic Biology Meets Ca 2+ Release-Activated Ca 2+ Channel-Dependent Immunomodulation. Cells 2024; 13:468. [PMID: 38534312 DOI: 10.3390/cells13060468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 02/27/2024] [Accepted: 03/05/2024] [Indexed: 03/28/2024] Open
Abstract
Many essential biological processes are triggered by the proximity of molecules. Meanwhile, diverse approaches in synthetic biology, such as new biological parts or engineered cells, have opened up avenues to precisely control the proximity of molecules and eventually downstream signaling processes. This also applies to a main Ca2+ entry pathway into the cell, the so-called Ca2+ release-activated Ca2+ (CRAC) channel. CRAC channels are among other channels are essential in the immune response and are activated by receptor-ligand binding at the cell membrane. The latter initiates a signaling cascade within the cell, which finally triggers the coupling of the two key molecular components of the CRAC channel, namely the stromal interaction molecule, STIM, in the ER membrane and the plasma membrane Ca2+ ion channel, Orai. Ca2+ entry, established via STIM/Orai coupling, is essential for various immune cell functions, including cytokine release, proliferation, and cytotoxicity. In this review, we summarize the tools of synthetic biology that have been used so far to achieve precise control over the CRAC channel pathway and thus over downstream signaling events related to the immune response.
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Affiliation(s)
- Bernadett Bacsa
- Division of Medical Physics und Biophysics, Medical University of Graz, A-8010 Graz, Austria
| | - Valentina Hopl
- Institute of Biophysics, JKU Life Science Center, Johannes Kepler University Linz, A-4020 Linz, Austria
| | - Isabella Derler
- Institute of Biophysics, JKU Life Science Center, Johannes Kepler University Linz, A-4020 Linz, Austria
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4
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Norman K, Hemmings KE, Shawer H, Appleby HL, Burnett AJ, Hamzah N, Gosain R, Woodhouse EM, Beech DJ, Foster R, Bailey MA. Side-by-side comparison of published small molecule inhibitors against thapsigargin-induced store-operated Ca2+ entry in HEK293 cells. PLoS One 2024; 19:e0296065. [PMID: 38261554 PMCID: PMC10805320 DOI: 10.1371/journal.pone.0296065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 12/05/2023] [Indexed: 01/25/2024] Open
Abstract
Calcium (Ca2+) is a key second messenger in eukaryotes, with store-operated Ca2+ entry (SOCE) being the main source of Ca2+ influx into non-excitable cells. ORAI1 is a highly Ca2+-selective plasma membrane channel that encodes SOCE. It is ubiquitously expressed in mammals and has been implicated in numerous diseases, including cardiovascular disease and cancer. A number of small molecules have been identified as inhibitors of SOCE with a variety of potential therapeutic uses proposed and validated in vitro and in vivo. These encompass both nonselective Ca2+ channel inhibitors and targeted selective inhibitors of SOCE. Inhibition of SOCE can be quantified both directly and indirectly with a variety of assay setups, making an accurate comparison of the activity of different SOCE inhibitors challenging. We have used a fluorescence based Ca2+ addback assay in native HEK293 cells to generate dose-response data for many published SOCE inhibitors. We were able to directly compare potency. Most compounds were validated with only minor and expected variations in potency, but some were not. This could be due to differences in assay setup relating to the mechanism of action of the inhibitors and highlights the value of a singular approach to compare these compounds, as well as the general need for biorthogonal validation of novel bioactive compounds. The compounds observed to be the most potent against SOCE in our study were: 7-azaindole 14d (12), JPIII (17), Synta-66 (6), Pyr 3 (5), GSK5503A (8), CM4620 (14) and RO2959 (7). These represent the most promising candidates for future development of SOCE inhibitors for therapeutic use.
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Affiliation(s)
- Katherine Norman
- School of Chemistry, University of Leeds, Leeds, West Yorkshire, United Kingdom
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, West Yorkshire, United Kingdom
| | - Karen E. Hemmings
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, West Yorkshire, United Kingdom
| | - Heba Shawer
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, West Yorkshire, United Kingdom
| | - Hollie L. Appleby
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, West Yorkshire, United Kingdom
| | - Alan J. Burnett
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, West Yorkshire, United Kingdom
| | - Nurasyikin Hamzah
- School of Chemistry, University of Leeds, Leeds, West Yorkshire, United Kingdom
| | - Rajendra Gosain
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, West Yorkshire, United Kingdom
| | - Emily M. Woodhouse
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, West Yorkshire, United Kingdom
| | - David J. Beech
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, West Yorkshire, United Kingdom
| | - Richard Foster
- School of Chemistry, University of Leeds, Leeds, West Yorkshire, United Kingdom
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, West Yorkshire, United Kingdom
| | - Marc A. Bailey
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, West Yorkshire, United Kingdom
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5
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Wei D, Birla H, Dou Y, Mei Y, Huo X, Whitehead V, Osei-Owusu P, Feske S, Patafio G, Tao Y, Hu H. PGE2 Potentiates Orai1-Mediated Calcium Entry Contributing to Peripheral Sensitization. J Neurosci 2024; 44:e0329232023. [PMID: 37952941 PMCID: PMC10851687 DOI: 10.1523/jneurosci.0329-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 08/09/2023] [Accepted: 08/29/2023] [Indexed: 11/14/2023] Open
Abstract
Peripheral sensitization is one of the primary mechanisms underlying the pathogenesis of chronic pain. However, candidate molecules involved in peripheral sensitization remain incompletely understood. We have shown that store-operated calcium channels (SOCs) are expressed in the dorsal root ganglion (DRG) neurons. Whether SOCs contribute to peripheral sensitization associated with chronic inflammatory pain is elusive. Here we report that global or conditional deletion of Orai1 attenuates Complete Freund's adjuvant (CFA)-induced pain hypersensitivity in both male and female mice. To further establish the role of Orai1 in inflammatory pain, we performed calcium imaging and patch-clamp recordings in wild-type (WT) and Orai1 knockout (KO) DRG neurons. We found that SOC function was significantly enhanced in WT but not in Orai1 KO DRG neurons from CFA- and carrageenan-injected mice. Interestingly, the Orai1 protein level in L3/4 DRGs was not altered under inflammatory conditions. To understand how Orai1 is modulated under inflammatory pain conditions, prostaglandin E2 (PGE2) was used to sensitize DRG neurons. PGE2-induced increase in neuronal excitability and pain hypersensitivity was significantly reduced in Orai1 KO mice. PGE2-induced potentiation of SOC entry (SOCE) was observed in WT, but not in Orai1 KO DRG neurons. This effect was attenuated by a PGE2 receptor 1 (EP1) antagonist and mimicked by an EP1 agonist. Inhibition of Gq/11, PKC, or ERK abolished PGE2-induced SOCE increase, indicating PGE2-induced SOCE enhancement is mediated by EP1-mediated downstream cascade. These findings demonstrate that Orai1 plays an important role in peripheral sensitization. Our study also provides new insight into molecular mechanisms underlying PGE2-induced modulation of inflammatory pain.Significance Statement Store-operated calcium channel (SOC) Orai1 is expressed and functional in dorsal root ganglion (DRG) neurons. Whether Orai1 contributes to peripheral sensitization is unclear. The present study demonstrates that Orai1-mediated SOC function is enhanced in DRG neurons under inflammatory conditions. Global and conditional deletion of Orai1 attenuates complete Freund's adjuvant (CFA)-induced pain hypersensitivity. We also demonstrate that prostaglandin E2 (PGE2) potentiates SOC function in DRG neurons through EP1-mediated signaling pathway. Importantly, we have found that Orai1 deficiency diminishes PGE2-induced SOC function increase and reduces PGE2-induced increase in neuronal excitability and pain hypersensitivity. These findings suggest that Orai1 plays an important role in peripheral sensitization associated with inflammatory pain. Our study reveals a novel mechanism underlying PGE2/EP1-induced peripheral sensitization. Orai1 may serve as a potential target for pathological pain.
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Affiliation(s)
- Dongyu Wei
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania 19102
| | - Hareram Birla
- Department of Anesthesiology, Rutgers New Jersey Medical School Newark, Newark, New Jersey 07103
| | - Yannong Dou
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania 19102
| | - Yixiao Mei
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania 19102
| | - Xiaodong Huo
- Department of Anesthesiology, Rutgers New Jersey Medical School Newark, Newark, New Jersey 07103
| | - Victoria Whitehead
- Department of Anesthesiology, Rutgers New Jersey Medical School Newark, Newark, New Jersey 07103
| | - Patrick Osei-Owusu
- Department of Anesthesiology, Rutgers New Jersey Medical School Newark, Newark, New Jersey 07103
| | - Stefan Feske
- Department of Pathology, NYU Grossman School of Medicine, New York, New York 10016
| | - Giovanna Patafio
- Department of Anesthesiology, Rutgers New Jersey Medical School Newark, Newark, New Jersey 07103
| | - Yuanxiang Tao
- Department of Anesthesiology, Rutgers New Jersey Medical School Newark, Newark, New Jersey 07103
| | - Huijuan Hu
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania 19102
- Department of Anesthesiology, Rutgers New Jersey Medical School Newark, Newark, New Jersey 07103
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6
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Gross S, Womer L, Kappes DJ, Soboloff J. Multifaceted control of T cell differentiation by STIM1. Trends Biochem Sci 2023; 48:1083-1097. [PMID: 37696713 PMCID: PMC10787584 DOI: 10.1016/j.tibs.2023.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 08/08/2023] [Accepted: 08/18/2023] [Indexed: 09/13/2023]
Abstract
In T cells, stromal interaction molecule (STIM) and Orai are dispensable for conventional T cell development, but critical for activation and differentiation. This review focuses on novel STIM-dependent mechanisms for control of Ca2+ signals during T cell activation and its impact on mitochondrial function and transcriptional activation for control of T cell differentiation and function. We highlight areas that require further work including the roles of plasma membrane Ca2+ ATPase (PMCA) and partner of STIM1 (POST) in controlling Orai function. A major knowledge gap also exists regarding the independence of T cell development from STIM and Orai, despite compelling evidence that it requires Ca2+ signals. Resolving these and other outstanding questions ensures that the field will remain active for many years to come.
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Affiliation(s)
- Scott Gross
- Fels Cancer Institute for Personalized Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA
| | - Lauren Womer
- Fels Cancer Institute for Personalized Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA
| | | | - Jonathan Soboloff
- Fels Cancer Institute for Personalized Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA; Department of Cancer and Cellular Biology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, 19140, USA.
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7
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Suk G, Kwon DH, Roers A, Abraham SN, Choi HW. Stabilization of activated mast cells by ORAI1 inhibitor suppresses peanut-induced anaphylaxis and acute diarrhea. Pharmacol Res 2023; 196:106887. [PMID: 37574155 DOI: 10.1016/j.phrs.2023.106887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 08/10/2023] [Accepted: 08/10/2023] [Indexed: 08/15/2023]
Abstract
Mast cell (MC) activation triggered by immunoglobulin E (IgE)-antigen crosslinking involves intracellular Ca2+ influx through the ORAI1 channel, which precedes granule exteriorization and de novo synthesis of mediators. Pharmacologically suppressing MCs via the inhibition of the ORAI1 Ca2+ channel may represent a potential strategy for preventing anaphylaxis. This study demonstrated that peanut-induced anaphylaxis in sensitized mice resulted in significant hypothermia and acute diarrhea. Utilizing the Mcpt5cre-DTA mouse model, we demonstrated that this anaphylactic response was mediated by IgE-antigen-induced MC activation. Prophylactic administration of MC suppressors was an effective means of preventing peanut-induced anaphylaxis. In addition, we observed the potent efficacy of an ORAI1 inhibitor in suppressing the FcεRI-mediated response of murine or human MCs, even when administered concurrently or post-allergen exposure. Mechanistically, the ORAI1 inhibitor was found to prevent the association of Synaptotagmin-2 with the SNARE complex. In an in vivo mouse model of peanut-induced anaphylaxis, the administration of the ORAI1 inhibitor after allergen challenge effectively suppressed allergic acute diarrhea and ameliorated anaphylaxis. Therefore, pharmacological intervention of ORAI1 channel inhibition in MCs represents a promising therapeutic avenue for the treatment of peanut-induced anaphylaxis and acute diarrhea in vivo.
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Affiliation(s)
- Gyeongseo Suk
- Division of Life Sciences, Korea University, Seoul 02841, South Korea
| | - Do Hoon Kwon
- Department of Biochemistry, Duke University Medical Center, Durham, NC 27710, USA
| | - Axel Roers
- Institute for Immunology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden 01069, Germany
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; Department of Immunology, Duke University Medical Center, Durham, NC 27710, USA; Molecular Genetics & Microbiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Hae Woong Choi
- Division of Life Sciences, Korea University, Seoul 02841, South Korea.
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8
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Emrich SM, Yoast RE, Zhang X, Fike AJ, Wang YH, Bricker KN, Tao AY, Xin P, Walter V, Johnson MT, Pathak T, Straub AC, Feske S, Rahman ZSM, Trebak M. Orai3 and Orai1 mediate CRAC channel function and metabolic reprogramming in B cells. eLife 2023; 12:e84708. [PMID: 36803766 PMCID: PMC9998091 DOI: 10.7554/elife.84708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 02/16/2023] [Indexed: 02/23/2023] Open
Abstract
The essential role of store-operated Ca2+ entry (SOCE) through Ca2+ release-activated Ca2+ (CRAC) channels in T cells is well established. In contrast, the contribution of individual Orai isoforms to SOCE and their downstream signaling functions in B cells are poorly understood. Here, we demonstrate changes in the expression of Orai isoforms in response to B cell activation. We show that both Orai3 and Orai1 mediate native CRAC channels in B cells. The combined loss of Orai1 and Orai3, but not Orai3 alone, impairs SOCE, proliferation and survival, nuclear factor of activated T cells (NFAT) activation, mitochondrial respiration, glycolysis, and the metabolic reprogramming of primary B cells in response to antigenic stimulation. Nevertheless, the combined deletion of Orai1 and Orai3 in B cells did not compromise humoral immunity to influenza A virus infection in mice, suggesting that other in vivo co-stimulatory signals can overcome the requirement of BCR-mediated CRAC channel function in B cells. Our results shed important new light on the physiological roles of Orai1 and Orai3 proteins in SOCE and the effector functions of B lymphocytes.
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Affiliation(s)
- Scott M Emrich
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of MedicineHersheyUnited States
| | - Ryan E Yoast
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of MedicineHersheyUnited States
| | - Xuexin Zhang
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of MedicineHersheyUnited States
| | - Adam J Fike
- Department of Microbiology and Immunology, Pennsylvania State University College of MedicineHersheyUnited States
| | - Yin-Hu Wang
- Department of Pathology, New York University School of MedicineNew YorkUnited States
| | - Kristen N Bricker
- Department of Microbiology and Immunology, Pennsylvania State University College of MedicineHersheyUnited States
| | - Anthony Y Tao
- Department of Pathology, New York University School of MedicineNew YorkUnited States
| | - Ping Xin
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of MedicinePittsburghUnited States
- Vascular Medicine Institute, University of Pittsburgh School of MedicinePittsburghUnited States
| | - Vonn Walter
- Department of Public Health Sciences, Pennsylvania State University College of MedicineHersheyUnited States
| | - Martin T Johnson
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of MedicineHersheyUnited States
| | - Trayambak Pathak
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of MedicinePittsburghUnited States
- Vascular Medicine Institute, University of Pittsburgh School of MedicinePittsburghUnited States
| | - Adam C Straub
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of MedicinePittsburghUnited States
- Vascular Medicine Institute, University of Pittsburgh School of MedicinePittsburghUnited States
| | - Stefan Feske
- Department of Pathology, New York University School of MedicineNew YorkUnited States
| | - Ziaur SM Rahman
- Department of Microbiology and Immunology, Pennsylvania State University College of MedicineHersheyUnited States
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of MedicineHersheyUnited States
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of MedicinePittsburghUnited States
- Vascular Medicine Institute, University of Pittsburgh School of MedicinePittsburghUnited States
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9
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Steiner P, Arlt E, Boekhoff I, Gudermann T, Zierler S. TPC Functions in the Immune System. Handb Exp Pharmacol 2023; 278:71-92. [PMID: 36639434 DOI: 10.1007/164_2022_634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Two-pore channels (TPCs) are novel intracellular cation channels, which play a key role in numerous (patho-)physiological and immunological processes. In this chapter, we focus on their function in immune cells and immune reactions. Therefore, we first give an overview of the cellular immune response and the partaking immune cells. Second, we concentrate on ion channels which in the past have been shown to play an important role in the regulation of immune cells. The main focus is then directed to TPCs, which are primarily located in the membranes of acidic organelles, such as lysosomes or endolysosomes but also certain other vesicles. They regulate Ca2+ homeostasis and thus Ca2+ signaling in immune cells. Due to this important functional role, TPCs are enjoying increasing attention within the field of immunology in the last few decades but are also becoming more pertinent as pharmacological targets for the treatment of pro-inflammatory diseases such as allergic hypersensitivity. However, to uncover the precise molecular mechanism of TPCs in immune cell responses, further molecular, genetic, and ultrastructural investigations on TPCs are necessary, which then may pave the way to develop novel therapeutic strategies to treat diseases such as anaphylaxis more specifically.
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Affiliation(s)
- Philip Steiner
- Institute of Pharmacology, Faculty of Medicine, Johannes Kepler University Linz, Linz, Austria
| | - Elisabeth Arlt
- Walther Straub Institute of Pharmacology and Toxicology, Faculty of Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Ingrid Boekhoff
- Walther Straub Institute of Pharmacology and Toxicology, Faculty of Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Thomas Gudermann
- Walther Straub Institute of Pharmacology and Toxicology, Faculty of Medicine, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Susanna Zierler
- Institute of Pharmacology, Faculty of Medicine, Johannes Kepler University Linz, Linz, Austria.
- Walther Straub Institute of Pharmacology and Toxicology, Faculty of Medicine, Ludwig-Maximilians-Universität München, Munich, Germany.
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10
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Jung SC, Zhou T, Ko EA. Age-dependent expression of ion channel genes in rat. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2023; 27:85-94. [PMID: 36575936 PMCID: PMC9806634 DOI: 10.4196/kjpp.2023.27.1.85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 12/29/2022]
Abstract
Ion channels regulate a large number of cellular functions and their functional role in many diseases makes them potential therapeutic targets. Given their diverse distribution across multiple organs, the roles of ion channels, particularly in age-associated transcriptomic changes in specific organs, are yet to be fully revealed. Using RNA-seq data, we investigated the rat transcriptomic profiles of ion channel genes across 11 organs/tissues and 4 developmental stages in both sexes of Fischer 344 rats and identify tissue-specific and age-dependent changes in ion channel gene expression. Organ-enriched ion channel genes were identified. In particular, the brain showed higher tissue-specificity of ion channel genes, including Gabrd, Gabra6, Gabrg2, Grin2a, and Grin2b. Notably, age-dependent changes in ion channel gene expression were prominently observed in the thymus, including in Aqp1, Clcn4, Hvcn1, Itpr1, Kcng2, Kcnj11, Kcnn3, and Trpm2. Our comprehensive study of ion channel gene expression will serve as a primary resource for biological studies of aging-related diseases caused by abnormal ion channel functions.
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Affiliation(s)
- Sung-Cherl Jung
- Department of Physiology, School of Medicine, Jeju National University, Jeju 63243, Korea
| | - Tong Zhou
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, NV 89557, USA
| | - Eun-A Ko
- Department of Physiology, School of Medicine, Jeju National University, Jeju 63243, Korea,Correspondence Eun-A Ko, E-mail:
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11
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Wang YH, Noyer L, Kahlfuss S, Raphael D, Tao AY, Kaufmann U, Zhu J, Mitchell-Flack M, Sidhu I, Zhou F, Vaeth M, Thomas PG, Saunders SP, Stauderman K, Curotto de Lafaille MA, Feske S. Distinct roles of ORAI1 in T cell-mediated allergic airway inflammation and immunity to influenza A virus infection. SCIENCE ADVANCES 2022; 8:eabn6552. [PMID: 36206339 PMCID: PMC9544339 DOI: 10.1126/sciadv.abn6552] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 08/22/2022] [Indexed: 06/16/2023]
Abstract
T cell activation and function depend on Ca2+ signals mediated by store-operated Ca2+ entry (SOCE) through Ca2+ release-activated Ca2+ (CRAC) channels formed by ORAI1 proteins. We here investigated how SOCE controls T cell function in pulmonary inflammation during a T helper 1 (TH1) cell-mediated response to influenza A virus (IAV) infection and TH2 cell-mediated allergic airway inflammation. T cell-specific deletion of Orai1 did not exacerbate pulmonary inflammation and viral burdens following IAV infection but protected mice from house dust mite-induced allergic airway inflammation. ORAI1 controlled the expression of genes including p53 and E2F transcription factors that regulate the cell cycle in TH2 cells in response to allergen stimulation and the expression of transcription factors and cytokines that regulate TH2 cell function. Systemic application of a CRAC channel blocker suppressed allergic airway inflammation without compromising immunity to IAV infection, suggesting that inhibition of SOCE is a potential treatment for allergic airway disease.
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Affiliation(s)
- Yin-Hu Wang
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Lucile Noyer
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Sascha Kahlfuss
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Dimitrius Raphael
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Anthony Y. Tao
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Ulrike Kaufmann
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Jingjie Zhu
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Marisa Mitchell-Flack
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Ikjot Sidhu
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Fang Zhou
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Martin Vaeth
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Paul G. Thomas
- St. Jude’s Children’s Research Hospital, Memphis, TN 38105, USA
| | - Sean P. Saunders
- Division of Pulmonary, Critical Care and Sleep Medicine, Departments of Medicine and Cell Biology, New York University Grossman School of Medicine, NY 10016, USA
| | | | - Maria A. Curotto de Lafaille
- Division of Pulmonary, Critical Care and Sleep Medicine, Departments of Medicine and Cell Biology, New York University Grossman School of Medicine, NY 10016, USA
| | - Stefan Feske
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA
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12
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Letizia M, Wang YH, Kaufmann U, Gerbeth L, Sand A, Brunkhorst M, Weidner P, Ziegler JF, Böttcher C, Schlickeiser S, Fernández C, Yamashita M, Stauderman K, Sun K, Kunkel D, Prakriya M, Sanders AD, Siegmund B, Feske S, Weidinger C. Store-operated calcium entry controls innate and adaptive immune cell function in inflammatory bowel disease. EMBO Mol Med 2022; 14:e15687. [PMID: 35919953 PMCID: PMC9449601 DOI: 10.15252/emmm.202215687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 07/03/2022] [Accepted: 07/05/2022] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) is characterized by dysregulated intestinal immune responses. Using mass cytometry (CyTOF) to analyze the immune cell composition in the lamina propria (LP) of patients with ulcerative colitis (UC) and Crohn's disease (CD), we observed an enrichment of CD4+ effector T cells producing IL‐17A and TNF, CD8+ T cells producing IFNγ, T regulatory (Treg) cells, and innate lymphoid cells (ILC). The function of these immune cells is regulated by store‐operated Ca2+ entry (SOCE), which results from the opening of Ca2+ release‐activated Ca2+ (CRAC) channels formed by ORAI and STIM proteins. We observed that the pharmacologic inhibition of SOCE attenuated the production of proinflammatory cytokines including IL‐2, IL‐4, IL‐6, IL‐17A, TNF, and IFNγ by human colonic T cells and ILCs, reduced the production of IL‐6 by B cells and the production of IFNγ by myeloid cells, but had no effect on the viability, differentiation, and function of intestinal epithelial cells. T cell‐specific deletion of CRAC channel genes in mice showed that Orai1, Stim1, and Stim2‐deficient T cells have quantitatively distinct defects in SOCE, which correlate with gradually more pronounced impairment of cytokine production by Th1 and Th17 cells and the severity of IBD. Moreover, the pharmacologic inhibition of SOCE with a selective CRAC channel inhibitor attenuated IBD severity and colitogenic T cell function in mice. Our data indicate that SOCE inhibition may be a suitable new approach for the treatment of IBD.
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Affiliation(s)
- Marilena Letizia
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Department of Gastroenterology, Infectious Diseases and Rheumatology, Campus Benjamin Franklin, Berlin, Germany
| | - Yin-Hu Wang
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Ulrike Kaufmann
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Lorenz Gerbeth
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Department of Gastroenterology, Infectious Diseases and Rheumatology, Campus Benjamin Franklin, Berlin, Germany
| | - Annegret Sand
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Department of Gastroenterology, Infectious Diseases and Rheumatology, Campus Benjamin Franklin, Berlin, Germany
| | - Max Brunkhorst
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Department of Gastroenterology, Infectious Diseases and Rheumatology, Campus Benjamin Franklin, Berlin, Germany
| | - Patrick Weidner
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Berlin Institute for Medical Systems Biology, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany.,Single Cell Approaches for Personalized Medicine, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Jörn Felix Ziegler
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Department of Gastroenterology, Infectious Diseases and Rheumatology, Campus Benjamin Franklin, Berlin, Germany
| | - Chotima Böttcher
- Experimental and Clinical Research Center, Berlin, A Cooperation of Charité and MDC, Berlin, Germany
| | - Stephan Schlickeiser
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Flow & Mass Cytometry Core Facility, Berlin, Germany
| | - Camila Fernández
- Experimental and Clinical Research Center, Berlin, A Cooperation of Charité and MDC, Berlin, Germany
| | - Megumi Yamashita
- Department of Pharmacology, Northwestern University, Chicago, IL, USA
| | | | - Katherine Sun
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Désirée Kunkel
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Flow & Mass Cytometry Core Facility, Berlin, Germany
| | - Murali Prakriya
- Department of Pharmacology, Northwestern University, Chicago, IL, USA
| | -
- TRR 241 Research Initiative, Berlin-Erlangen, Germany
| | - Ashley D Sanders
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Berlin Institute for Medical Systems Biology, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany.,Single Cell Approaches for Personalized Medicine, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Britta Siegmund
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Department of Gastroenterology, Infectious Diseases and Rheumatology, Campus Benjamin Franklin, Berlin, Germany
| | - Stefan Feske
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Carl Weidinger
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.,Department of Gastroenterology, Infectious Diseases and Rheumatology, Campus Benjamin Franklin, Berlin, Germany.,Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA.,Clinician Scientist Program, Berlin Institute of Health, Berlin, Germany
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13
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Wang L, Noyer L, Wang YH, Tao AY, Li W, Zhu J, Saavedra P, Hoda ST, Yang J, Feske S. ORAI3 is dispensable for store-operated Ca2+ entry and immune responses by lymphocytes and macrophages. J Gen Physiol 2022; 154:213360. [PMID: 35861698 PMCID: PMC9532584 DOI: 10.1085/jgp.202213104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 06/24/2022] [Indexed: 01/23/2023] Open
Abstract
Ca2+ signals regulate the function of many immune cells and promote immune responses to infection, cancer, and autoantigens. Ca2+ influx in immune cells is mediated by store-operated Ca2+ entry (SOCE) that results from the opening of Ca2+ release-activated Ca2+ (CRAC) channels. The CRAC channel is formed by three plasma membrane proteins, ORAI1, ORAI2, and ORAI3. Of these, ORAI1 is the best studied and plays important roles in immune function. By contrast, the physiological role of ORAI3 in immune cells remains elusive. We show here that ORAI3 is expressed in many immune cells including macrophages, B cells, and T cells. To investigate ORAI3 function in immune cells, we generated Orai3-/- mice. The development of lymphoid and myeloid cells in the thymus and bone marrow was normal in Orai3-/- mice, as was the composition of immune cells in secondary lymphoid organs. Deletion of Orai3 did not affect SOCE in B cells and T cells but moderately enhanced SOCE in macrophages. Orai3-deficient macrophages, B cells, and T cells had normal effector functions in vitro. Immune responses in vivo, including humoral immunity (T cell dependent or independent) and antitumor immunity, were normal in Orai3-/- mice. Moreover, Orai3-/- mice showed no differences in susceptibility to septic shock, experimental autoimmune encephalomyelitis, or collagen-induced arthritis. We conclude that despite its expression in myeloid and lymphoid cells, ORAI3 appears to be dispensable or redundant for physiological and pathological immune responses mediated by these cells.
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Affiliation(s)
- Liwei Wang
- Department of Pathology, New York University Grossman School of Medicine, New York, NY
| | - Lucile Noyer
- Department of Pathology, New York University Grossman School of Medicine, New York, NY
| | - Yin-Hu Wang
- Department of Pathology, New York University Grossman School of Medicine, New York, NY
| | - Anthony Y. Tao
- Department of Pathology, New York University Grossman School of Medicine, New York, NY
| | - Wenyi Li
- Department of Pathology, New York University Grossman School of Medicine, New York, NY
| | - Jingjie Zhu
- Department of Pathology, New York University Grossman School of Medicine, New York, NY
| | - Pedro Saavedra
- Department of Pathology, New York University Grossman School of Medicine, New York, NY
| | - Syed T. Hoda
- Department of Pathology, New York University Grossman School of Medicine, New York, NY
| | - Jun Yang
- Department of Pathology, New York University Grossman School of Medicine, New York, NY
| | - Stefan Feske
- Department of Pathology, New York University Grossman School of Medicine, New York, NY,Correspondence to Stefan Feske:
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14
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Li M, Zhang B, Yin Y, Wen J, Wang J, He Y, Jiang Q, Loor JJ, Wang S, Yang W, Xu C. Intracellular Ca 2+ Signaling and Calcium Release-Activated Calcium Modulator ORAI1 Are Associated With CD4 + T Lymphocytes in Dairy Cows. Front Immunol 2022; 13:835936. [PMID: 35663942 PMCID: PMC9159785 DOI: 10.3389/fimmu.2022.835936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 04/19/2022] [Indexed: 11/17/2022] Open
Abstract
The nutritional status of dairy cows and the metabolism of specific nutrients are critical regulators of immune cell function. Around the time of parturition, mobilization of body lipid and muscle helps compensate for the decrease in nutrient intake and the increased requirements of the mammary gland for lactation. An end-result of these processes is the marked increase in circulating concentrations of fatty acids (FA), which are a major risk factor for immune dysfunction. In food animal species such as dairy cows, any disturbance in nutritional or immunological homeostasis leads to deleterious feedback loops that can further risk health, efficiency of nutrient use, and compromise availability of safe and nutritious dairy foods for humans. Despite substantial progress with respect to regulation of innate immunity, such knowledge for adaptive immunity is scarce. To help bridge this gap in knowledge, we sought to study the role of calcium release-activated calcium modulator ORAI1 activation in T cells systemic immune function in vivo. CD4+ T cells were isolated from peripheral blood of dairy cows diagnosed as healthy or with ketosis, a common metabolic disorder of FA metabolism. Results revealed that levels of intracellular Ca2+ and reactive oxygen species (ROS) along with the abundance of store-operated Ca2+ entry (SOCE) moiety increased during ketosis. Further, plasma concentrations of inflammatory cytokines were elevated, the balance of Th17/Treg cells was disrupted, mitochondrial function impaired, and the abundance of mitophagy-related proteins in CD4+ T cells altered during ketosis. Molecular characterization of the direct effects of FA was evaluated in CD4+ T cells isolated from the spleen of 1-day-old calves. Enhanced supply of FA increased intracellular Ca2+ and ROS concentrations, upregulated the abundance of proteins associated with mitochondrial dynamics and ORAI1. Intermediates of mitophagy accumulated and the balance of Th17/Treg cells also was affected by the supply of FA. These negative effects were attenuated by silencing or inhibition of ORAI1 in CD4+ T cells. Together, data indicated that physiological states that lead to increases in systemic concentrations of FA could impact adaptive immunity negatively through ORAI1 regulated intracellular Ca2+, ROS balance, and increased effector functions of Th17 cells.
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Affiliation(s)
- Ming Li
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Bingbing Zhang
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yufeng Yin
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Jianan Wen
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Jingjing Wang
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Yuxin He
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Qianming Jiang
- Mammalian NutriPhysio Genomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, IL, United States
| | - Juan J Loor
- Mammalian NutriPhysio Genomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, IL, United States
| | - Shuang Wang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Wei Yang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
| | - Chuang Xu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, China
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15
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Wu B, Woo JS, Sun Z, Srikanth S, Gwack Y. Ca 2+ Signaling Augmented by ORAI1 Trafficking Regulates the Pathogenic State of Effector T Cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:1329-1340. [PMID: 35217583 PMCID: PMC8916982 DOI: 10.4049/jimmunol.2100871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 01/07/2022] [Indexed: 02/02/2023]
Abstract
Activation of the Ca2+ release-activated Ca2+ (CRAC) channel is crucial for T cell functions. It was recently shown that naked cuticle homolog 2 (NKD2), a signaling adaptor molecule, orchestrates trafficking of ORAI1, a pore subunit of the CRAC channels, to the plasma membrane for sustained activation of the CRAC channels. However, the physiological role of sustained Ca2+ entry via ORAI1 trafficking remains poorly understood. Using NKD2 as a molecular handle, we show that ORAI1 trafficking is crucial for sustained Ca2+ entry and cytokine production, especially in inflammatory Th1 and Th17 cells. We find that murine T cells cultured under pathogenic Th17-polarizing conditions have higher Ca2+ levels that are NKD2-dependent than those under nonpathogenic conditions. In vivo, deletion of Nkd2 alleviated clinical symptoms of experimental autoimmune encephalomyelitis in mice by selectively decreasing effector T cell responses in the CNS. Furthermore, we observed a strong correlation between NKD2 expression and proinflammatory cytokine production in effector T cells. Taken together, our findings suggest that the pathogenic effector T cell response demands sustained Ca2+ entry supported by ORAI1 trafficking.
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Affiliation(s)
- Beibei Wu
- Department of Physiology, David Geffen School of Medicine, University of California, Los Angeles, CA; and
| | - Jin Seok Woo
- Department of Physiology, David Geffen School of Medicine, University of California, Los Angeles, CA; and
| | - Zuoming Sun
- Department of Molecular Imaging and Therapy, Beckman Research Institute of City of Hope, Duarte, CA
| | - Sonal Srikanth
- Department of Physiology, David Geffen School of Medicine, University of California, Los Angeles, CA; and
| | - Yousang Gwack
- Department of Physiology, David Geffen School of Medicine, University of California, Los Angeles, CA; and
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16
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Shawer H, Cheng CW, Bailey MA. Absence of association between host genetic mutations in the ORAI1 gene and COVID-19 fatality. PLoS One 2022; 17:e0263303. [PMID: 35113933 PMCID: PMC8812896 DOI: 10.1371/journal.pone.0263303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 01/16/2022] [Indexed: 11/18/2022] Open
Abstract
The calcium ion channel ORAI1 has emerged as a promising therapeutic target for the Coronavirus Disease 19 (COVID-19)-associated pneumonia, and a pharmacological inhibitor of ORAI1 has now reached clinical trials for severe COVID-19 pneumonia. Whether ORAI1 itself is associated with an increased risk for severe COVID-19 presentation is still unknown. Here, we employed genetic association analysis to investigate the potential association of host genetic polymorphisms of ORAI1 with the risk of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection and its associated COVID-19 fatality in UK Biobank participants from white British background. The analysis showed no significant association between ORAI1 variants and COVID-19 positivity or fatality, despite the well-established roles of ORAI1 in immune response and inflammation and the success of ORAI1 inhibition in clinical trials. Our results suggest that the host genetic polymorphisms of ORAI1 are unlikely to be implicated in the broad variability in symptoms severity among afflicted patients.
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Affiliation(s)
- Heba Shawer
- The Leeds Institute of Cardiovascular & Metabolic Medicine, School of Medicine, University of Leeds, Leeds, United Kingdom
| | - Chew W. Cheng
- The Leeds Institute of Cardiovascular & Metabolic Medicine, School of Medicine, University of Leeds, Leeds, United Kingdom
| | - Marc A. Bailey
- The Leeds Institute of Cardiovascular & Metabolic Medicine, School of Medicine, University of Leeds, Leeds, United Kingdom
- * E-mail:
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17
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The volume-regulated anion channel LRRC8C suppresses T cell function by regulating cyclic dinucleotide transport and STING-p53 signaling. Nat Immunol 2022; 23:287-302. [PMID: 35105987 DOI: 10.1038/s41590-021-01105-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 12/01/2021] [Indexed: 12/20/2022]
Abstract
The volume-regulated anion channel (VRAC) is formed by LRRC8 proteins and is responsible for the regulatory volume decrease (RVD) after hypotonic cell swelling. Besides chloride, VRAC transports other molecules, for example, immunomodulatory cyclic dinucleotides (CDNs) including 2'3'cGAMP. Here, we identify LRRC8C as a critical component of VRAC in T cells, where its deletion abolishes VRAC currents and RVD. T cells of Lrrc8c-/- mice have increased cell cycle progression, proliferation, survival, Ca2+ influx and cytokine production-a phenotype associated with downmodulation of p53 signaling. Mechanistically, LRRC8C mediates the transport of 2'3'cGAMP in T cells, resulting in STING and p53 activation. Inhibition of STING recapitulates the phenotype of LRRC8C-deficient T cells, whereas overexpression of p53 inhibits their enhanced T cell function. Lrrc8c-/- mice have exacerbated T cell-dependent immune responses, including immunity to influenza A virus infection and experimental autoimmune encephalomyelitis. Our results identify cGAMP uptake through LRRC8C and STING-p53 signaling as a new inhibitory signaling pathway in T cells and adaptive immunity.
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18
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Chaki S, Alkanfari I, Roy S, Amponnawarat A, Hui Y, Oskeritzian CA, Ali H. Inhibition of Orai Channel Function Regulates Mas-Related G Protein-Coupled Receptor-Mediated Responses in Mast Cells. Front Immunol 2022; 12:803335. [PMID: 35126366 PMCID: PMC8810828 DOI: 10.3389/fimmu.2021.803335] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 12/28/2021] [Indexed: 11/13/2022] Open
Abstract
Mast cells (MCs) are tissue resident immune cells that play important roles in the pathogenesis of allergic disorders. These responses are mediated via the cross-linking of cell surface high affinity IgE receptor (FcϵRI) by antigen resulting in calcium (Ca2+) mobilization, followed by degranulation and release of proinflammatory mediators. In addition to FcϵRI, cutaneous MCs express Mas-related G protein-coupled receptor X2 (MRGPRX2; mouse ortholog MrgprB2). Activation of MRGPRX2/B2 by the neuropeptide substance P (SP) is implicated in neurogenic inflammation, chronic urticaria, mastocytosis and atopic dermatitis. Although Ca2+ entry is required for MRGPRX2/B2-mediated MC responses, the possibility that calcium release-activated calcium (CRAC/Orai) channels participate in these responses has not been tested. Lentiviral shRNA-mediated silencing of Orai1, Orai2 or Orai3 in a human MC line (LAD2 cells) resulted in partial inhibition of SP-induced Ca2+ mobilization, degranulation and cytokine/chemokine generation (TNF-α, IL-8, and CCL-3). Synta66, which blocks homo and hetero-dimerization of Orai channels, caused a more robust inhibition of SP-induced responses than knockdown of individual Orai channels. Synta66 also blocked SP-induced extracellular signal-regulated kinase 1/2 (ERK1/2) and Akt phosphorylation and abrogated cytokine/chemokine production. It also inhibited SP-induced Ca2+ mobilization and degranulation in primary human skin MCs and mouse peritoneal MCs. Furthermore, Synta66 attenuated both SP-induced cutaneous vascular permeability and leukocyte recruitment in mouse peritoneum. These findings demonstrate that Orai channels contribute to MRGPRX2/B2-mediated MC activation and suggest that their inhibition could provide a novel approach for the modulation of SP-induced MC/MRGPRX2-mediated disorders.
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Affiliation(s)
- Shaswati Chaki
- Department of Basic and Translational Sciences, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, United States
| | - Ibrahim Alkanfari
- Department of Basic and Translational Sciences, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, United States
- Faculty of Dentistry, King AbdulAziz University, Jeddah, Saudi Arabia
| | - Saptarshi Roy
- Department of Basic and Translational Sciences, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, United States
| | - Aetas Amponnawarat
- Department of Basic and Translational Sciences, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, United States
- Department of Family and Community Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Yvonne Hui
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
| | - Carole A. Oskeritzian
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, United States
| | - Hydar Ali
- Department of Basic and Translational Sciences, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, United States
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19
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Nawrocki M, Lory N, Bedke T, Stumme F, Diercks BP, Guse AH, Meier C, Gagliani N, Mittrücker HW, Huber S. Trans-Ned 19-Mediated Antagonism of Nicotinic Acid Adenine Nucleotide-Mediated Calcium Signaling Regulates Th17 Cell Plasticity in Mice. Cells 2021; 10:3039. [PMID: 34831261 PMCID: PMC8616272 DOI: 10.3390/cells10113039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/30/2021] [Accepted: 11/01/2021] [Indexed: 11/17/2022] Open
Abstract
Nicotinic acid adenine dinucleotide phosphate (NAADP) is the most potent Ca2+ mobilizing agent and its inhibition proved to inhibit T-cell activation. However, the impact of the NAADP signaling on CD4+ T-cell differentiation and plasticity and on the inflammation in tissues other than the central nervous system remains unclear. In this study, we used an antagonist of NAADP signaling, trans-Ned 19, to study the role of NAADP in CD4+ T-cell differentiation and effector function. Partial blockade of NAADP signaling in naïve CD4+ T cells in vitro promoted the differentiation of Th17 cells. Interestingly, trans-Ned 19 also promoted the production of IL-10, co-expression of LAG-3 and CD49b and increased the suppressive capacity of Th17 cells. Moreover, using an IL-17A fate mapping mouse model, we showed that NAADP inhibition promotes conversion of Th17 cells into regulatory T cells in vitro and in vivo. In line with the results, we found that inhibiting NAADP ameliorates disease in a mouse model of intestinal inflammation. Thus, these results reveal a novel function of NAADP in controlling the differentiation and plasticity of CD4+ T cells.
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Affiliation(s)
- Mikołaj Nawrocki
- Section of Molecular Immunology and Gastroenterology, I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (M.N.); (T.B.); (F.S.); (N.G.)
- Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (N.L.); (H.-W.M.)
| | - Niels Lory
- Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (N.L.); (H.-W.M.)
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Tanja Bedke
- Section of Molecular Immunology and Gastroenterology, I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (M.N.); (T.B.); (F.S.); (N.G.)
- Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (N.L.); (H.-W.M.)
| | - Friederike Stumme
- Section of Molecular Immunology and Gastroenterology, I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (M.N.); (T.B.); (F.S.); (N.G.)
- Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (N.L.); (H.-W.M.)
| | - Björn-Phillip Diercks
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (B.-P.D.); (A.H.G.)
| | - Andreas H. Guse
- The Calcium Signalling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (B.-P.D.); (A.H.G.)
| | - Chris Meier
- Institute of Organic Chemistry, Department of Chemistry, Faculty of Sciences, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany;
| | - Nicola Gagliani
- Section of Molecular Immunology and Gastroenterology, I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (M.N.); (T.B.); (F.S.); (N.G.)
- Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (N.L.); (H.-W.M.)
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
- Immunology and Allergy Unit, Department of Medicine Solna, Karolinska Institute, 17176 Stockholm, Sweden
| | - Hans-Willi Mittrücker
- Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (N.L.); (H.-W.M.)
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Samuel Huber
- Section of Molecular Immunology and Gastroenterology, I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (M.N.); (T.B.); (F.S.); (N.G.)
- Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (N.L.); (H.-W.M.)
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20
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Phan HTL, Kim HJ, Jo S, Kim WK, Namkung W, Nam JH. Anti-Inflammatory Effect of Licochalcone A via Regulation of ORAI1 and K + Channels in T-Lymphocytes. Int J Mol Sci 2021; 22:ijms221910847. [PMID: 34639190 PMCID: PMC8509259 DOI: 10.3390/ijms221910847] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/02/2021] [Accepted: 10/04/2021] [Indexed: 02/07/2023] Open
Abstract
Calcium signaling plays a vital role in the regulation of various cellular processes, including activation, proliferation, and differentiation of T-lymphocytes, which is mediated by ORAI1 and potassium (K+) channels. These channels have also been identified as highly attractive therapeutic targets for immune-related diseases. Licochalcone A is a licorice-derived chalconoid known for its multifaceted beneficial effects in pharmacological treatments, including its anti-inflammatory, anti-asthmatic, antioxidant, antimicrobial, and antitumorigenic properties. However, its anti-inflammatory effects involving ion channels in lymphocytes remain unclear. Thus, the present study aimed to investigate whether licochalcone A inhibits ORAI1 and K+ channels in T-lymphocytes. Our results indicated that licochalcone A suppressed all three channels (ORAI1, Kv1.3, and KCa3.1) in a concentration-dependent matter, with IC50 values of 2.97 ± 1.217 µM, 0.83 ± 1.222 µM, and 11.21 ± 1.07 µM, respectively. Of note, licochalcone A exerted its suppressive effects on the IL-2 secretion and proliferation in CD3 and CD28 antibody-induced T-cells. These results indicate that the use of licochalcone A may provide an effective treatment strategy for inflammation-related immune diseases.
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Affiliation(s)
- Hong T. L. Phan
- Department of Physiology, Dongguk University College of Medicine, 123 Dongdae-ro, Gyeongju 38066, Korea;
- Channelopathy Research Center (CRC), Dongguk University College of Medicine, 32 Dongguk-ro, Goyang 10326, Korea; (H.J.K.); (W.K.K.)
| | - Hyun J. Kim
- Channelopathy Research Center (CRC), Dongguk University College of Medicine, 32 Dongguk-ro, Goyang 10326, Korea; (H.J.K.); (W.K.K.)
| | - Sungwoo Jo
- Yonsei Institute of Pharmaceutical Sciences, College of Pharmacy, Yonsei University, 85 Songdogwahak-ro, Incheon 21983, Korea;
| | - Woo K. Kim
- Channelopathy Research Center (CRC), Dongguk University College of Medicine, 32 Dongguk-ro, Goyang 10326, Korea; (H.J.K.); (W.K.K.)
- Department of Internal Medicine Graduate School of Medicine, Dongguk University, 27 Dongguk-ro, Goyang 10326, Korea
| | - Wan Namkung
- Yonsei Institute of Pharmaceutical Sciences, College of Pharmacy, Yonsei University, 85 Songdogwahak-ro, Incheon 21983, Korea;
- Correspondence: (W.N.); (J.H.N.)
| | - Joo H. Nam
- Department of Physiology, Dongguk University College of Medicine, 123 Dongdae-ro, Gyeongju 38066, Korea;
- Channelopathy Research Center (CRC), Dongguk University College of Medicine, 32 Dongguk-ro, Goyang 10326, Korea; (H.J.K.); (W.K.K.)
- Correspondence: (W.N.); (J.H.N.)
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21
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Jairaman A, Othy S, Dynes JL, Yeromin AV, Zavala A, Greenberg ML, Nourse JL, Holt JR, Cahalan SM, Marangoni F, Parker I, Pathak MM, Cahalan MD. Piezo1 channels restrain regulatory T cells but are dispensable for effector CD4 + T cell responses. SCIENCE ADVANCES 2021; 7:7/28/eabg5859. [PMID: 34233878 PMCID: PMC8262815 DOI: 10.1126/sciadv.abg5859] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 05/24/2021] [Indexed: 05/03/2023]
Abstract
T lymphocytes encounter complex mechanical cues during an immune response. The mechanosensitive ion channel, Piezo1, drives inflammatory responses to bacterial infections, wound healing, and cancer; however, its role in helper T cell function remains unclear. In an animal model for multiple sclerosis, experimental autoimmune encephalomyelitis (EAE), we found that mice with genetic deletion of Piezo1 in T cells showed diminished disease severity. Unexpectedly, Piezo1 was not essential for lymph node homing, interstitial motility, Ca2+ signaling, T cell proliferation, or differentiation into proinflammatory T helper 1 (TH1) and TH17 subsets. However, Piezo1 deletion in T cells resulted in enhanced transforming growth factor-β (TGFβ) signaling and an expanded pool of regulatory T (Treg) cells. Moreover, mice with deletion of Piezo1 specifically in Treg cells showed significant attenuation of EAE. Our results indicate that Piezo1 selectively restrains Treg cells, without influencing activation events or effector T cell functions.
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Affiliation(s)
- Amit Jairaman
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA
| | - Shivashankar Othy
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA
| | - Joseph L Dynes
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA
| | - Andriy V Yeromin
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA
| | - Angel Zavala
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA
| | - Milton L Greenberg
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA
| | - Jamison L Nourse
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA
- Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, CA 92697, USA
| | - Jesse R Holt
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA
- Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, CA 92697, USA
| | - Stuart M Cahalan
- Howard Hughes Medical Institute, Department of Neuroscience, The Scripps Research Institute, La Jolla, CA 92037, USA
- Vertex Pharmaceuticals, 3215 Merryfield Row, San Diego, CA 92121, USA
| | - Francesco Marangoni
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA
| | - Ian Parker
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA
- Department of Neurobiology and Behavior, University of California, Irvine, CA 92697, USA
| | - Medha M Pathak
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA
- Sue and Bill Gross Stem Cell Research Center, University of California, Irvine, CA 92697, USA
- Department of Biomedical Engineering, University of California, Irvine, CA 92697, USA
- Center for Complex Systems Biology, University of California, Irvine, CA 92697, USA
| | - Michael D Cahalan
- Department of Physiology and Biophysics, University of California, Irvine, CA 92697-4561, USA.
- Institute for Immunology, University of California, Irvine, CA 92697, USA
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22
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Shawer H, Norman K, Cheng CW, Foster R, Beech DJ, Bailey MA. ORAI1 Ca 2+ Channel as a Therapeutic Target in Pathological Vascular Remodelling. Front Cell Dev Biol 2021; 9:653812. [PMID: 33937254 PMCID: PMC8083964 DOI: 10.3389/fcell.2021.653812] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 03/08/2021] [Indexed: 12/21/2022] Open
Abstract
In the adult, vascular smooth muscle cells (VSMC) are normally physiologically quiescent, arranged circumferentially in one or more layers within blood vessel walls. Remodelling of native VSMC to a proliferative state for vascular development, adaptation or repair is driven by platelet-derived growth factor (PDGF). A key effector downstream of PDGF receptors is store-operated calcium entry (SOCE) mediated through the plasma membrane calcium ion channel, ORAI1, which is activated by the endoplasmic reticulum (ER) calcium store sensor, stromal interaction molecule-1 (STIM1). This SOCE was shown to play fundamental roles in the pathological remodelling of VSMC. Exciting transgenic lineage-tracing studies have revealed that the contribution of the phenotypically-modulated VSMC in atherosclerotic plaque formation is more significant than previously appreciated, and growing evidence supports the relevance of ORAI1 signalling in this pathologic remodelling. ORAI1 has also emerged as an attractive potential therapeutic target as it is accessible to extracellular compound inhibition. This is further supported by the progression of several ORAI1 inhibitors into clinical trials. Here we discuss the current knowledge of ORAI1-mediated signalling in pathologic vascular remodelling, particularly in the settings of atherosclerotic cardiovascular diseases (CVDs) and neointimal hyperplasia, and the recent developments in our understanding of the mechanisms by which ORAI1 coordinates VSMC phenotypic remodelling, through the activation of key transcription factor, nuclear factor of activated T-cell (NFAT). In addition, we discuss advances in therapeutic strategies aimed at the ORAI1 target.
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Affiliation(s)
- Heba Shawer
- School of Medicine, The Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Katherine Norman
- School of Medicine, The Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom.,School of Chemistry, University of Leeds, Leeds, United Kingdom
| | - Chew W Cheng
- School of Medicine, The Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Richard Foster
- School of Medicine, The Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom.,School of Chemistry, University of Leeds, Leeds, United Kingdom
| | - David J Beech
- School of Medicine, The Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Marc A Bailey
- School of Medicine, The Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
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23
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Hasiakos S, Gwack Y, Kang M, Nishimura I. Calcium Signaling in T Cells and Chronic Inflammatory Disorders of the Oral Cavity. J Dent Res 2021; 100:693-699. [PMID: 33541200 DOI: 10.1177/0022034521990652] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Acute immune responses to microbial insults in the oral cavity often progress to chronic inflammatory diseases such as periodontitis and apical periodontitis. Chronic oral inflammation causes destruction of the periodontium, potentially leading to loss of the dentition. Previous investigations have demonstrated that the composition of oral immune cells, rather than the overall extent of cellular infiltration, determines the pathological development of chronic inflammation. The role of T lymphocyte populations, including Th1, Th2, Th17, and Treg cells, has been extensively described. Studies now propose pathogenic Th17 cells as a distinct subset, uniquely classifiable from traditional Th17 populations. In situ differentiation of pathogenic Th17 cells has been verified as a source of destructive inflammation, which critically drives pathogenesis in chronic inflammatory diseases such as diabetes, rheumatoid arthritis, and inflammatory bowel disease. Pathogenic Th17 cells resemble a Th1 penotype and produce not only interleukin 17 (IL-17) but also γ-interferon (IFN-γ) and granulocyte-macrophage colony-stimulating factor (GM-CSF). The proinflammatory cytokine-specific mechanisms known to induce IL-17 expression in Th17 cells are well characterized; however, differentiation mechanisms that lead to pathogenic Th17 cells are less understood. Recently, Ca2+ signaling through Ca2+ release-activated Ca2+ channels (CRAC) in T cells has been uncovered as a major signaling axis involved in the regulation of T-cell-mediated chronic inflammation. In particular, pathogenic Th17 cell-mediated immunological diseases appear to be effectively targeted via such Ca2+ signaling pathways. Pathogenic plasticity of Th17 cells has been extensively illustrated in autoimmune and chronic inflammatory diseases. Although their specific causal relationship to oral infection-induced chronic inflammatory diseases is not fully established, pathogenic Th17 cells may be involved in the underlining mechanism. This review highlights the current understanding of T-cell phenotype regulation, calcium signaling pathways in this event, and the potential role of pathogenic Th17 cells in chronic inflammatory disorders of the oral cavity.
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Affiliation(s)
- S Hasiakos
- Division of Oral Biology and Medicine, UCLA School of Dentistry, Los Angeles, CA, USA.,Department of Physiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Y Gwack
- Department of Physiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - M Kang
- Section of Endodontics, UCLA School of Dentistry, Los Angeles, CA, USA
| | - I Nishimura
- Division of Oral Biology and Medicine, UCLA School of Dentistry, Los Angeles, CA, USA.,Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, CA, USA
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24
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Zöphel D, Hof C, Lis A. Altered Ca 2+ Homeostasis in Immune Cells during Aging: Role of Ion Channels. Int J Mol Sci 2020; 22:ijms22010110. [PMID: 33374304 PMCID: PMC7794837 DOI: 10.3390/ijms22010110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 12/29/2022] Open
Abstract
Aging is an unstoppable process and begins shortly after birth. Each cell of the organism is affected by the irreversible process, not only with equal density but also at varying ages and with different speed. Therefore, aging can also be understood as an adaptation to a continually changing cellular environment. One of these very prominent changes in age affects Ca2+ signaling. Especially immune cells highly rely on Ca2+-dependent processes and a strictly regulated Ca2+ homeostasis. The intricate patterns of impaired immune cell function may represent a deficit or compensatory mechanisms. Besides, altered immune function through Ca2+ signaling can profoundly affect the development of age-related disease. This review attempts to summarize changes in Ca2+ signaling due to channels and receptors in T cells and beyond in the context of aging.
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Affiliation(s)
| | | | - Annette Lis
- Correspondence: ; Tel.: +49-(0)-06841-1616318; Fax: +49-(0)-6841-1616302
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25
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Abstract
T cells are an essential component of the immune system that provide antigen-specific acute and long lasting immune responses to infections and tumors, ascertain the maintenance of immunological tolerance and, on the flipside, mediate autoimmunity in a variety of diseases. The activation of T cells through antigen recognition by the T cell receptor (TCR) results in transient and sustained Ca2+ signals that are shaped by the opening of Ca2+ channels in the plasma membrane and cellular organelles. The dynamic regulation of intracellular Ca2+ concentrations controls a variety of T cell functions on the timescale of seconds to days after signal initiation. Among the more recently identified roles of Ca2+ signaling in T cells is the regulation of metabolic pathways that control the function of many T cell subsets. In this review, we discuss how Ca2+ regulates several metabolic programs in T cells such as the activation of AMPK and the PI3K-AKT-mTORC1 pathway, aerobic glycolysis, mitochondrial metabolism including tricarboxylic acid (TCA) cycle function and oxidative phosphorylation (OXPHOS), as well as lipid metabolism.
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Affiliation(s)
- Yinhu Wang
- Department of Pathology, New York University School of Medicine, New York, NY, USA
| | - Anthony Tao
- Department of Pathology, New York University School of Medicine, New York, NY, USA
| | - Martin Vaeth
- Institute of Systems Immunology, Julius Maximilians University of Würzburg, Würzburg, Germany
| | - Stefan Feske
- Department of Pathology, New York University School of Medicine, New York, NY, USA
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26
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Bakowski D, Murray F, Parekh AB. Store-Operated Ca 2+ Channels: Mechanism, Function, Pharmacology, and Therapeutic Targets. Annu Rev Pharmacol Toxicol 2020; 61:629-654. [PMID: 32966177 DOI: 10.1146/annurev-pharmtox-031620-105135] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Calcium (Ca2+) release-activated Ca2+ (CRAC) channels are a major route for Ca2+ entry in eukaryotic cells. These channels are store operated, opening when the endoplasmic reticulum (ER) is depleted of Ca2+, and are composed of the ER Ca2+ sensor protein STIM and the pore-forming plasma membrane subunit Orai. Recent years have heralded major strides in our understanding of the structure, gating, and function of the channels. Loss-of-function and gain-of-function mutants combined with RNAi knockdown strategies have revealed important roles for the channel in numerous human diseases, making the channel a clinically relevant target. Drugs targeting the channels generally lack specificity or exhibit poor efficacy in animal models. However, the landscape is changing, and CRAC channel blockers are now entering clinical trials. Here, we describe the key molecular and biological features of CRAC channels, consider various diseases associated with aberrant channel activity, and discuss targeting of the channels from a therapeutic perspective.
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Affiliation(s)
| | - Fraser Murray
- Pandeia Therapeutics, Oxford OX4 4GP, United Kingdom
| | - Anant B Parekh
- Department of Physiology, Anatomy and Genetics, Oxford University, Oxford OX1 3PT, United Kingdom; , .,Current affiliation: National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709, USA
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27
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Seeing is believing: Visualizing immune cells and calcium signals at different stages of neuroinflammation. Proc Natl Acad Sci U S A 2020; 117:20360-20362. [PMID: 32769207 DOI: 10.1073/pnas.2013377117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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28
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Aki A, Tanaka K, Nagaoka N, Kimura T, Baba D, Onodera Y, Wada T, Maeda H, Nakanishi T, Agatsuma T, Komai T. Anti-ORAI1 antibody DS-2741a, a specific CRAC channel blocker, shows ideal therapeutic profiles for allergic disease via suppression of aberrant T-cell and mast cell activation. FASEB Bioadv 2020; 2:478-488. [PMID: 32821879 PMCID: PMC7429349 DOI: 10.1096/fba.2020-00008] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 03/07/2020] [Accepted: 06/11/2020] [Indexed: 12/20/2022] Open
Abstract
ORAI1 constitutes the pore-forming subunit of the calcium release-activated calcium (CRAC) channel, which is responsible for store-operated calcium entry into lymphocytes. It is known that ORAI1 is essential for the activation of T cells and mast cells and is considered to be a potent therapeutic target for autoimmune and allergic diseases. Here, we obtained a new humanized antibody, DS-2741a, that inhibits ORAI1 function. DS-2741a bound to human-ORAI1 with high affinity and without cross-reactivity to rodent Orai1. DS-2741a demonstrated suppression of CRAC-mediated human and mouse T-cell activation and mast cell degranulation in human ORAI1 knock-in mice. Furthermore, DS-2741a ameliorated house dust mite antigen-induced dermatitis in the human ORAI1 knock-in mouse. Taken together, DS-2741a inhibited T-cell and mast cell functions, thus improving skin inflammation in animal models of atopic dermatitis and reinforcing the need for investigation of DS-2741a for the treatment of allergic diseases in a clinical setting.
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Affiliation(s)
- Anri Aki
- R&D DivisionSpecialty Medicine Research Laboratories I, Research FunctionDaiichi Sankyo Co., Ltd.TokyoJapan
| | - Kento Tanaka
- Oncology FunctionR&D DivisionOncology Research Laboratories IDaiichi Sankyo Co., Ltd.TokyoJapan
| | - Nobumi Nagaoka
- Biologics DivisionModality Research LaboratoriesDaiichi Sankyo Co., Ltd.TokyoJapan
| | - Takako Kimura
- Structure‐Based Drug Design GroupOrganic Synthesis DepartmentDaiichi Sankyo RD Novare Co., Ltd.TokyoJapan
| | - Daichi Baba
- Quality & Safety Management DivisionPost‐Marketing Regulatory Affairs DepartmentDaiichi Sankyo Co., Ltd.TokyoJapan
| | - Yoshikuni Onodera
- Vaccine Research LaboratoriesBiologics DivisionDaiichi Sankyo Co., Ltd.TokyoJapan
| | - Teiji Wada
- Oncology FunctionR&D DivisionOncology Research Laboratories IDaiichi Sankyo Co., Ltd.TokyoJapan
| | - Hiroaki Maeda
- R&D DivisionR&D Planning & Management DepartmentDaiichi Sankyo Co., Ltd.TokyoJapan
| | - Toshiyuki Nakanishi
- R&D DivisionR&D Planning & Management DepartmentDaiichi Sankyo Co., Ltd.TokyoJapan
| | - Toshinori Agatsuma
- Oncology FunctionR&D DivisionOncology Research Laboratories IDaiichi Sankyo Co., Ltd.TokyoJapan
| | - Tomoaki Komai
- R&D DivisionR&D General Affairs & Human Resources DepartmentDaiichi Sankyo Co., Ltd.TokyoJapan
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29
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Regulatory T cells suppress Th17 cell Ca 2+ signaling in the spinal cord during murine autoimmune neuroinflammation. Proc Natl Acad Sci U S A 2020; 117:20088-20099. [PMID: 32732436 PMCID: PMC7443932 DOI: 10.1073/pnas.2006895117] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
T lymphocyte motility and interaction dynamics with other immune cells are vital determinants of immune responses. Regulatory T (Treg) cells prevent autoimmune disorders by suppressing excessive lymphocyte activity, but how interstitial motility patterns of Treg cells limit neuroinflammation is not well understood. We used two-photon microscopy to elucidate the spatial organization, motility characteristics, and interactions of endogenous Treg and Th17 cells together with antigen-presenting cells (APCs) within the spinal cord leptomeninges in experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis. Th17 cells arrive before the onset of clinical symptoms, distribute uniformly during the peak, and decline in numbers during later stages of EAE. In contrast, Treg cells arrive after Th17 cells and persist during the chronic phase. Th17 cells meander widely, interact with APCs, and exhibit cytosolic Ca2+ transients and elevated basal Ca2+ levels before the arrival of Treg cells. In contrast, Treg cells adopt a confined, repetitive-scanning motility while contacting APCs. These locally confined but highly motile Treg cells limit Th17 cells from accessing APCs and suppress Th17 cell Ca2+ signaling by a mechanism that is upstream of store-operated Ca2+ entry. Finally, Treg cell depletion increases APC numbers in the spinal cord and exaggerates ongoing neuroinflammation. Our results point to fundamental differences in motility characteristics between Th17 and Treg cells in the inflamed spinal cord and reveal three potential cellular mechanisms by which Treg cells regulate Th17 cell effector functions: reduction of APC density, limiting access of Th17 cells to APCs, and suppression of Th17 Ca2+ signaling.
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30
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Vaeth M, Kahlfuss S, Feske S. CRAC Channels and Calcium Signaling in T Cell-Mediated Immunity. Trends Immunol 2020; 41:878-901. [PMID: 32711944 DOI: 10.1016/j.it.2020.06.012] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 06/19/2020] [Accepted: 06/24/2020] [Indexed: 12/22/2022]
Abstract
Calcium (Ca2+) signals play fundamental roles in immune cell function. The main sources of Ca2+ influx in mammalian lymphocytes following antigen receptor stimulation are Ca2+ release-activated Ca2+ (CRAC) channels. These are formed by ORAI proteins in the plasma membrane and are activated by stromal interaction molecules (STIM) located in the endoplasmic reticulum (ER). Human loss-of-function (LOF) mutations in ORAI1 and STIM1 that abolish Ca2+ influx cause a unique disease syndrome called CRAC channelopathy that is characterized by immunodeficiency autoimmunity and non-immunological symptoms. Studies in mice lacking Stim and Orai genes have illuminated many cellular and molecular mechanisms by which these molecules control lymphocyte function. CRAC channels are required for the differentiation and function of several T lymphocyte subsets that provide immunity to infection, mediate inflammation and prevent autoimmunity. This review examines new insights into how CRAC channels control T cell-mediated immunity.
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Affiliation(s)
- Martin Vaeth
- Institute of Systems Immunology, Julius-Maximilians University of Würzburg, Würzburg, Germany; Department of Pathology, New York University School of Medicine, New York, NY, USA
| | - Sascha Kahlfuss
- Institute of Molecular and Clinical Immunology, Health Campus Immunology, Infectiology, and Inflammation, Otto-von-Guericke University Magdeburg, Magdeburg, Germany; Department of Pathology, New York University School of Medicine, New York, NY, USA
| | - Stefan Feske
- Department of Pathology, New York University School of Medicine, New York, NY, USA.
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31
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Kahlfuss S, Kaufmann U, Concepcion AR, Noyer L, Raphael D, Vaeth M, Yang J, Pancholi P, Maus M, Muller J, Kozhaya L, Khodadadi-Jamayran A, Sun Z, Shaw P, Unutmaz D, Stathopulos PB, Feist C, Cameron SB, Turvey SE, Feske S. STIM1-mediated calcium influx controls antifungal immunity and the metabolic function of non-pathogenic Th17 cells. EMBO Mol Med 2020; 12:e11592. [PMID: 32609955 PMCID: PMC7411566 DOI: 10.15252/emmm.201911592] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 05/19/2020] [Accepted: 05/25/2020] [Indexed: 12/18/2022] Open
Abstract
Immunity to fungal infections is mediated by cells of the innate and adaptive immune system including Th17 cells. Ca2+ influx in immune cells is regulated by stromal interaction molecule 1 (STIM1) and its activation of the Ca2+ channel ORAI1. We here identify patients with a novel mutation in STIM1 (p.L374P) that abolished Ca2+ influx and resulted in increased susceptibility to fungal and other infections. In mice, deletion of STIM1 in all immune cells enhanced susceptibility to mucosal C. albicans infection, whereas T cell‐specific deletion of STIM1 impaired immunity to systemic C. albicans infection. STIM1 deletion impaired the production of Th17 cytokines essential for antifungal immunity and compromised the expression of genes in several metabolic pathways including Foxo and HIF1α signaling that regulate glycolysis and oxidative phosphorylation (OXPHOS). Our study further revealed distinct roles of STIM1 in regulating transcription and metabolic programs in non‐pathogenic Th17 cells compared to pathogenic, proinflammatory Th17 cells, a finding that may potentially be exploited for the treatment of Th17 cell‐mediated inflammatory diseases.
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Affiliation(s)
- Sascha Kahlfuss
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Ulrike Kaufmann
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Axel R Concepcion
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Lucile Noyer
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Dimitrius Raphael
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Martin Vaeth
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Jun Yang
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Priya Pancholi
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Mate Maus
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - James Muller
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Lina Kozhaya
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | | | - Zhengxi Sun
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Patrick Shaw
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
| | - Derya Unutmaz
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Peter B Stathopulos
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Cori Feist
- Department of Obstetrics & Gynecology, Oregon Health & Science University, Portland, OR, USA
| | - Scott B Cameron
- Division of Allergy and Clinical Immunology, Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
| | - Stuart E Turvey
- Division of Allergy and Clinical Immunology, Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
| | - Stefan Feske
- Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA
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Park YJ, Yoo SA, Kim M, Kim WU. The Role of Calcium-Calcineurin-NFAT Signaling Pathway in Health and Autoimmune Diseases. Front Immunol 2020; 11:195. [PMID: 32210952 PMCID: PMC7075805 DOI: 10.3389/fimmu.2020.00195] [Citation(s) in RCA: 156] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 01/24/2020] [Indexed: 01/05/2023] Open
Abstract
Calcium (Ca2+) is an essential signaling molecule that controls a wide range of biological functions. In the immune system, calcium signals play a central role in a variety of cellular functions such as proliferation, differentiation, apoptosis, and numerous gene transcriptions. During an immune response, the engagement of T-cell and B-cell antigen receptors induces a decrease in the intracellular Ca2+ store and then activates store-operated Ca2+ entry (SOCE) to raise the intracellular Ca2+ concentration, which is mediated by the Ca2+ release-activated Ca2+ (CRAC) channels. Recently, identification of the two critical regulators of the CRAC channel, stromal interaction molecule (STIM) and Orai1, has broadened our understanding of the regulatory mechanisms of Ca2+ signaling in lymphocytes. Repetitive or prolonged increase in intracellular Ca2+ is required for the calcineurin-mediated dephosphorylation of the nuclear factor of an activated T cell (NFAT). Recent data indicate that Ca2+-calcineurin-NFAT1 to 4 pathways are dysregulated in autoimmune diseases. Therefore, calcineurin inhibitors, cyclosporine and tacrolimus, have been used for the treatment of such autoimmune diseases as systemic lupus erythematosus and rheumatoid arthritis. Here, we review the role of the Ca2+-calcineurin–NFAT signaling pathway in health and diseases, focusing on the STIM and Orai1, and discuss the deregulated calcium-mediated calcineurin-NFAT pathway in autoimmune diseases.
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Affiliation(s)
- Yune-Jung Park
- POSTEC-CATHOLIC Biomedical Engineering Institute, The Catholic University of Korea, Seoul, South Korea.,Division of Rheumatology, Department of Internal Medicine, St. Vincent's Hospital, The Catholic University of Korea, Suwon, South Korea
| | - Seung-Ah Yoo
- POSTEC-CATHOLIC Biomedical Engineering Institute, The Catholic University of Korea, Seoul, South Korea.,Department of Biomedicine & Health Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Mingyo Kim
- Division of Rheumatology, Department of Internal Medicine, Gyeonsang National University Hospital, Jinju, South Korea
| | - Wan-Uk Kim
- POSTEC-CATHOLIC Biomedical Engineering Institute, The Catholic University of Korea, Seoul, South Korea.,Department of Biomedicine & Health Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea.,Division of Rheumatology, Department of Internal Medicine, The Catholic University of Korea, Seoul, South Korea
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33
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Wei X, Li H, Zhang Y, Li C, Li K, Ai K, Yang J. Ca2+–Calcineurin Axis–Controlled NFAT Nuclear Translocation Is Crucial for Optimal T Cell Immunity in an Early Vertebrate. THE JOURNAL OF IMMUNOLOGY 2019; 204:569-585. [DOI: 10.4049/jimmunol.1901065] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 11/22/2019] [Indexed: 11/19/2022]
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Abstract
Calcium (Ca2+) signalling is of paramount importance to immunity. Regulated increases in cytosolic and organellar Ca2+ concentrations in lymphocytes control complex and crucial effector functions such as metabolism, proliferation, differentiation, antibody and cytokine secretion and cytotoxicity. Altered Ca2+ regulation in lymphocytes leads to various autoimmune, inflammatory and immunodeficiency syndromes. Several types of plasma membrane and organellar Ca2+-permeable channels are functional in T cells. They contribute highly localized spatial and temporal Ca2+ microdomains that are required for achieving functional specificity. While the mechanistic details of these Ca2+ microdomains are only beginning to emerge, it is evident that through crosstalk, synergy and feedback mechanisms, they fine-tune T cell signalling to match complex immune responses. In this article, we review the expression and function of various Ca2+-permeable channels in the plasma membrane, endoplasmic reticulum, mitochondria and endolysosomes of T cells and their role in shaping immunity and the pathogenesis of immune-mediated diseases.
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Affiliation(s)
- Mohamed Trebak
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, PA, USA.
| | - Jean-Pierre Kinet
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
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35
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Kaufmann U, Kahlfuss S, Yang J, Ivanova E, Koralov SB, Feske S. Calcium Signaling Controls Pathogenic Th17 Cell-Mediated Inflammation by Regulating Mitochondrial Function. Cell Metab 2019; 29:1104-1118.e6. [PMID: 30773462 PMCID: PMC6506368 DOI: 10.1016/j.cmet.2019.01.019] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 11/26/2018] [Accepted: 01/23/2019] [Indexed: 12/24/2022]
Abstract
Pathogenic Th17 cells play important roles in many autoimmune and inflammatory diseases. Their function depends on T cell receptor (TCR) signaling and cytokines that activate signal transducer and activator of transcription 3 (STAT3). TCR engagement activates stromal interaction molecule 1 (STIM1) and calcium (Ca2+) influx through Ca2+-release-activated Ca2+ (CRAC) channels. Here, we show that abolishing STIM1 and Ca2+ influx in T cells expressing a hyperactive form of STAT3 (STAT3C) attenuates pathogenic Th17 cell function and inflammation associated with STAT3C expression. Deletion of STIM1 in pathogenic Th17 cells reduces the expression of genes required for mitochondrial function and oxidative phosphorylation (OXPHOS) but enhances reactive oxygen species (ROS) production. STIM1 deletion or inhibition of OXPHOS is associated with a non-pathogenic Th17 gene expression signature and impaired pathogenic Th17 cell function. Our findings establish Ca2+ influx as a critical regulator of mitochondrial function and oxidative stress in pathogenic Th17 cell-mediated multiorgan inflammation.
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Affiliation(s)
- Ulrike Kaufmann
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Sascha Kahlfuss
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Jun Yang
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Elitza Ivanova
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Sergei B Koralov
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Stefan Feske
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA.
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36
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Rode B, Bailey MA, Marthan R, Beech DJ, Guibert C. ORAI Channels as Potential Therapeutic Targets in Pulmonary Hypertension. Physiology (Bethesda) 2019; 33:261-268. [PMID: 29897302 DOI: 10.1152/physiol.00016.2018] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Pulmonary hypertension is a complex and fatal disease that lacks treatments. Its pathophysiology involves pulmonary artery hyperreactivity, endothelial dysfunction, wall remodelling, inflammation, and thrombosis, which could all depend on ORAI Ca2+ channels. We review the knowledge about ORAI channels in pulmonary artery and discuss the interest to target them in the treatment of pulmonary hypertension.
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Affiliation(s)
- Baptiste Rode
- INSERM, Centre de Recherche Cardio-Thoracique de Bordeaux , Bordeaux , France.,Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds , Leeds , United Kingdom
| | - Marc A Bailey
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds , Leeds , United Kingdom
| | - Roger Marthan
- INSERM, Centre de Recherche Cardio-Thoracique de Bordeaux , Bordeaux , France.,Univ. of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux , Bordeaux , France.,CHU de Bordeaux, Pôle Cardio-Thoracique, Bordeaux , France
| | - David J Beech
- Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds , Leeds , United Kingdom
| | - Christelle Guibert
- INSERM, Centre de Recherche Cardio-Thoracique de Bordeaux , Bordeaux , France.,Univ. of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux , Bordeaux , France
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37
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Diercks BP, Werner R, Weidemüller P, Czarniak F, Hernandez L, Lehmann C, Rosche A, Krüger A, Kaufmann U, Vaeth M, Failla AV, Zobiak B, Kandil FI, Schetelig D, Ruthenbeck A, Meier C, Lodygin D, Flügel A, Ren D, Wolf IMA, Feske S, Guse AH. ORAI1, STIM1/2, and RYR1 shape subsecond Ca 2+ microdomains upon T cell activation. Sci Signal 2018; 11:11/561/eaat0358. [PMID: 30563862 DOI: 10.1126/scisignal.aat0358] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The earliest intracellular signals that occur after T cell activation are local, subsecond Ca2+ microdomains. Here, we identified a Ca2+ entry component involved in Ca2+ microdomain formation in both unstimulated and stimulated T cells. In unstimulated T cells, spontaneously generated small Ca2+ microdomains required ORAI1, STIM1, and STIM2. Super-resolution microscopy of unstimulated T cells identified a circular subplasmalemmal region with a diameter of about 300 nm with preformed patches of colocalized ORAI1, ryanodine receptors (RYRs), and STIM1. Preformed complexes of STIM1 and ORAI1 in unstimulated cells were confirmed by coimmunoprecipitation and Förster resonance energy transfer studies. Furthermore, within the first second after T cell receptor (TCR) stimulation, the number of Ca2+ microdomains increased in the subplasmalemmal space, an effect that required ORAI1, STIM2, RYR1, and the Ca2+ mobilizing second messenger NAADP (nicotinic acid adenine dinucleotide phosphate). These results indicate that preformed clusters of STIM and ORAI1 enable local Ca2+ entry events in unstimulated cells. Upon TCR activation, NAADP-evoked Ca2+ release through RYR1, in coordination with Ca2+ entry through ORAI1 and STIM, rapidly increases the number of Ca2+ microdomains, thereby initiating spread of Ca2+ signals deeper into the cytoplasm to promote full T cell activation.
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Affiliation(s)
- Björn-Philipp Diercks
- The Calcium Signaling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - René Werner
- Department of Computational Neuroscience, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Paula Weidemüller
- The Calcium Signaling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Frederik Czarniak
- The Calcium Signaling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Lola Hernandez
- The Calcium Signaling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Cari Lehmann
- The Calcium Signaling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Annette Rosche
- The Calcium Signaling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Aileen Krüger
- The Calcium Signaling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Ulrike Kaufmann
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Martin Vaeth
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Antonio V Failla
- Microscopy Core Facility, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Bernd Zobiak
- Microscopy Core Facility, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Farid I Kandil
- Department of Computational Neuroscience, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Daniel Schetelig
- Department of Computational Neuroscience, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | | | - Chris Meier
- Organic Chemistry, University of Hamburg, 20146 Hamburg, Germany
| | - Dmitri Lodygin
- Institute of Neuroimmunology, University of Göttingen, 37075 Göttingen, Germany
| | - Alexander Flügel
- Institute of Neuroimmunology, University of Göttingen, 37075 Göttingen, Germany
| | - Dejian Ren
- Department of Biology, University of Pennsylvania, Philadelphia, PA 19104-6313, USA
| | - Insa M A Wolf
- The Calcium Signaling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Stefan Feske
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Andreas H Guse
- The Calcium Signaling Group, Department of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany.
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38
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Saint Fleur-Lominy S, Maus M, Vaeth M, Lange I, Zee I, Suh D, Liu C, Wu X, Tikhonova A, Aifantis I, Feske S. STIM1 and STIM2 Mediate Cancer-Induced Inflammation in T Cell Acute Lymphoblastic Leukemia. Cell Rep 2018; 24:3045-3060.e5. [PMID: 30208327 PMCID: PMC6170166 DOI: 10.1016/j.celrep.2018.08.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 06/04/2018] [Accepted: 08/10/2018] [Indexed: 12/12/2022] Open
Abstract
T cell acute lymphoblastic leukemia (T-ALL) is commonly associated with activating mutations in the NOTCH1 pathway. Recent reports have shown a link between NOTCH1 signaling and intracellular Ca2+ homeostasis in T-ALL. Here, we investigate the role of store-operated Ca2+ entry (SOCE) mediated by the Ca2+ channel ORAI1 and its activators STIM1 and STIM2 in T-ALL. Deletion of STIM1 and STIM2 in leukemic cells abolishes SOCE and significantly prolongs the survival of mice in a NOTCH1-dependent model of T-ALL. The survival advantage is unrelated to the leukemic cell burden but is associated with the SOCE-dependent ability of malignant T lymphoblasts to cause inflammation in leukemia-infiltrated organs. Mice with STIM1/STIM2-deficient T-ALL show a markedly reduced necroinflammatory response in leukemia-infiltrated organs and downregulation of signaling pathways previously linked to cancer-induced inflammation. Our study shows that leukemic T lymphoblasts cause inflammation of leukemia-infiltrated organs that is dependent on SOCE.
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Affiliation(s)
- Shella Saint Fleur-Lominy
- Department of Medicine, New York University School of Medicine, New York, NY 10016, USA; Laura and Isaac Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016, USA
| | - Mate Maus
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Martin Vaeth
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Ingo Lange
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Isabelle Zee
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - David Suh
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Cynthia Liu
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Xiaojun Wu
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Anastasia Tikhonova
- Laura and Isaac Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016, USA; Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Iannis Aifantis
- Laura and Isaac Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016, USA; Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Stefan Feske
- Laura and Isaac Perlmutter Cancer Center, New York University School of Medicine, New York, NY 10016, USA; Department of Pathology, New York University School of Medicine, New York, NY 10016, USA.
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39
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CRAC channels as targets for drug discovery and development. Cell Calcium 2018; 74:147-159. [PMID: 30075400 DOI: 10.1016/j.ceca.2018.07.005] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/16/2018] [Accepted: 07/16/2018] [Indexed: 12/13/2022]
Abstract
Calcium release-activated calcium (CRAC) channels have been the target of drug discovery for many years. The identification of STIM and Orai proteins as key components of CRAC channels greatly facilitated this process because their co-expression in cell lines produced electrophysiological currents (ICRAC) much larger than those in native cells, making it easier to confirm and characterize the effects of modulatory compounds. A driving force in the quest for CRAC channel drugs has been the immunocompromised phenotype displayed by humans and mice with null or loss-of-function mutations in STIM1 or Orai1, suggesting that CRAC channel inhibitors could be useful therapeutics for autoimmune or inflammatory conditions. Emerging data also suggests that other therapeutic conditions may benefit from CRAC channel inhibition. However, only recently have CRAC channel inhibitors reached clinical trials. This review discusses the challenges associated with drug discovery and development on CRAC channels and the approaches employed to date, as well as the results, starting from initial high-throughput screens for CRAC channel modulators and progressing through target selection and justification, descriptions of pharmacological, safety and toxicological profiles of compounds, and finally the entry of CRAC channel inhibitors into clinical trials.
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40
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Vaeth M, Feske S. Ion channelopathies of the immune system. Curr Opin Immunol 2018; 52:39-50. [PMID: 29635109 PMCID: PMC6004246 DOI: 10.1016/j.coi.2018.03.021] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 03/18/2018] [Accepted: 03/20/2018] [Indexed: 01/25/2023]
Abstract
Ion channels and transporters move ions across membrane barriers and are essential for a host of cell functions in many organs. They conduct K+, Na+ and Cl-, which are essential for regulating the membrane potential, H+ to control intracellular and extracellular pH and divalent cations such as Ca2+, Mg2+ and Zn2+, which function as second messengers and cofactors for many proteins. Inherited channelopathies due to mutations in ion channels or their accessory proteins cause a variety of diseases in the nervous, cardiovascular and other tissues, but channelopathies that affect immune function are not as well studied. Mutations in ORAI1 and STIM1 genes that encode the Ca2+ release-activated Ca2+ (CRAC) channel in immune cells, the Mg2+ transporter MAGT1 and the Cl- channel LRRC8A all cause immunodeficiency with increased susceptibility to infection. Mutations in the Zn2+ transporters SLC39A4 (ZIP4) and SLC30A2 (ZnT2) result in nutritional Zn2+ deficiency and immune dysfunction. These channels, however, only represent a fraction of ion channels that regulate immunity as demonstrated by immune dysregulation in channel knockout mice. The immune system itself can cause acquired channelopathies that are associated with a variety of diseases of nervous, cardiovascular and endocrine systems resulting from autoantibodies binding to ion channels. These autoantibodies highlight the therapeutic potential of functional anti-ion channel antibodies that are being developed for the treatment of autoimmune, inflammatory and other diseases.
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Affiliation(s)
- Martin Vaeth
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA
| | - Stefan Feske
- Department of Pathology, New York University School of Medicine, New York, NY 10016, USA.
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41
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Nunes-Hasler P, Maschalidi S, Lippens C, Castelbou C, Bouvet S, Guido D, Bermont F, Bassoy EY, Page N, Merkler D, Hugues S, Martinvalet D, Manoury B, Demaurex N. STIM1 promotes migration, phagosomal maturation and antigen cross-presentation in dendritic cells. Nat Commun 2017; 8:1852. [PMID: 29176619 PMCID: PMC5701258 DOI: 10.1038/s41467-017-01600-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 10/02/2017] [Indexed: 12/31/2022] Open
Abstract
Antigen cross-presentation by dendritic cells (DC) stimulates cytotoxic T cell activation to promote immunity to intracellular pathogens, viruses and cancer. Phagocytosed antigens generate potent T cell responses, but the signalling and trafficking pathways regulating their cross-presentation are unclear. Here, we show that ablation of the store-operated-Ca2+-entry regulator STIM1 in mouse myeloid cells impairs cross-presentation and DC migration in vivo and in vitro. Stim1 ablation reduces Ca2+ signals, cross-presentation, and chemotaxis in mouse bone-marrow-derived DCs without altering cell differentiation, maturation or phagocytic capacity. Phagosomal pH homoeostasis and ROS production are unaffected by STIM1 deficiency, but phagosomal proteolysis and leucyl aminopeptidase activity, IRAP recruitment, as well as fusion of phagosomes with endosomes and lysosomes are all impaired. These data suggest that STIM1-dependent Ca2+ signalling promotes the delivery of endolysosomal enzymes to phagosomes to enable efficient cross-presentation. STIM proteins sense Ca2+ depletion in the ER and activate store-operated Ca2+-entry (SOCE) in response, a process associated with dendritic cell functions. Here the authors show STIM1 is the major isoform controlling SOCE in mouse dendritic cells and provide a mechanism for its requirement in antigen cross-presentation.
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Affiliation(s)
- Paula Nunes-Hasler
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, 1211, Switzerland.
| | - Sophia Maschalidi
- Laboratory of Normal and Pathological Homeostasis of the Immune System, INSERM UMR1163, Paris, 75015, France.,Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine Paris Descartes, Paris, 75015, France
| | - Carla Lippens
- Department of Pathology and Immunology, University of Geneva, Geneva, 1211, Switzerland
| | - Cyril Castelbou
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, 1211, Switzerland
| | - Samuel Bouvet
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, 1211, Switzerland
| | - Daniele Guido
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, 1211, Switzerland
| | - Flavien Bermont
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, 1211, Switzerland
| | - Esen Y Bassoy
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, 1211, Switzerland
| | - Nicolas Page
- Department of Pathology and Immunology, University of Geneva, Geneva, 1211, Switzerland
| | - Doron Merkler
- Department of Pathology and Immunology, University of Geneva, Geneva, 1211, Switzerland.,Division of Clinical Pathology, Geneva University Hospital, Geneva, 1211, Switzerland
| | - Stéphanie Hugues
- Department of Pathology and Immunology, University of Geneva, Geneva, 1211, Switzerland
| | - Denis Martinvalet
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, 1211, Switzerland
| | - Bénédicte Manoury
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de médecine Paris Descartes, Paris, 75015, France.,Institut National de la Santé et de la Recherche Médicale, Unité 1151, Paris, 75014, France.,Centre National de la Recherche Scientifique, Unité 8253, Paris, 75014, France
| | - Nicolas Demaurex
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, 1211, Switzerland
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42
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Sassano MF, Ghosh A, Tarran R. Tobacco Smoke Constituents Trigger Cytoplasmic Calcium Release. ACTA ACUST UNITED AC 2017; 3:193-198. [PMID: 28620626 DOI: 10.1089/aivt.2016.0039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cytosolic Ca2+ is a universal second messenger that is involved in many processes throughout the body, including the regulation of cell growth/cell division, apoptosis, and the secretion of both ions, and macromolecules. Tobacco smoke exerts multiple effects on airway epithelia and we have previously shown that Kentucky reference cigarette smoke exposure elevated the second messenger Ca2+, leading to dysfunctional ion secretion. In this study, we tested whether little cigar and commercial cigarette smoke exposure exerts similar effects on intracellular Ca2+ levels. Indeed, Swisher Sweets, Captain Black, and Cheyenne little cigars, as well as Camel, Marlboro, and Newport cigarettes, triggered a comparable increase in intracellular Ca2+ as seen with Kentucky reference cigarettes in human bronchial epithelia. We also found that Kentucky reference cigarette smoke exposure caused increases in Ca2+ in HEK293T cells and that similar increases in Ca2+ were seen with the tobacco smoke metabolites 1-NH2-naphthalene, formaldehyde, nicotine, and nicotine-derived nitrosamine ketone. Given the large number of physiological processes governed by changes in cytosolic Ca2+, our data suggest that Ca2+ signaling is a useful and reproducible assay that can be used to probe the propensity of tobacco products and their constituents to cause toxicity.
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Affiliation(s)
- M Flori Sassano
- Marsico Lung Institute, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Arunava Ghosh
- Marsico Lung Institute, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Robert Tarran
- Marsico Lung Institute, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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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 ins and outs of calcium signalling in lactation and involution: Implications for breast cancer treatment. Pharmacol Res 2017; 116:100-104. [DOI: 10.1016/j.phrs.2016.12.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 10/31/2016] [Accepted: 12/07/2016] [Indexed: 01/19/2023]
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Immunological Disorders: Regulation of Ca 2+ Signaling in T Lymphocytes. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 993:397-424. [PMID: 28900926 DOI: 10.1007/978-3-319-57732-6_21] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Engagement of T cell receptors (TCRs) with cognate antigens triggers cascades of signaling pathways in helper T cells. TCR signaling is essential for the effector function of helper T cells including proliferation, differentiation, and cytokine production. It also modulates effector T cell fate by inducing cell death, anergy (nonresponsiveness), exhaustion, and generation of regulatory T cells. One of the main axes of TCR signaling is the Ca2+-calcineurin-nuclear factor of activated T cells (NFAT) signaling pathway. Stimulation of TCRs triggers depletion of intracellular Ca2+ store and, in turn, activates store-operated Ca2+ entry (SOCE) to raise the intracellular Ca2+ concentration. SOCE in T cells is mediated by the Ca2+ release-activated Ca2+ (CRAC) channels, which have been very well characterized in terms of their electrophysiological properties. Identification of STIM1 as a sensor to detect depletion of the endoplasmic reticulum (ER) Ca2+ store and Orai1 as the pore subunit of CRAC channels has dramatically advanced our understanding of the regulatory mechanism of Ca2+ signaling in T cells. In this review, we discuss our current understanding of Ca2+ signaling in T cells with specific focus on the mechanism of CRAC channel activation and regulation via protein interactions. In addition, we will discuss the role of CRAC channels in effector T cells, based on the analyses of genetically modified animal models.
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