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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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2
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Bai S, Wei Y, Liu R, Chen Y, Ma W, Wang M, Chen L, Luo Y, Du J. The role of transient receptor potential channels in metastasis. Biomed Pharmacother 2023; 158:114074. [PMID: 36493698 DOI: 10.1016/j.biopha.2022.114074] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 11/30/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Metastasis is the hallmark of failed tumor treatment and is typically associated with death due to cancer. Transient receptor potential (TRP) channels affect changes in intracellular calcium concentrations and participate at every stage of metastasis. Further, they increase the migratory ability of tumor cells, promote angiogenesis, regulate immune function, and promote the growth of tumor cells through changes in gene expression and function. In this review, we explore the potential mechanisms of action of TRP channels, summarize their role in tumor metastasis, compile inhibitors of TRP channels relevant in tumors, and discuss current challenges in research on TRP channels involved in tumor metastasis.
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Affiliation(s)
- Suwen Bai
- Longgang District People's Hospital of Shenzhen & The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Yuan Wei
- Longgang District People's Hospital of Shenzhen & The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Rong Liu
- School of Basic Medical Sciences, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yuhua Chen
- Longgang District People's Hospital of Shenzhen & The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Wanling Ma
- Longgang District People's Hospital of Shenzhen & The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Minghua Wang
- Longgang District People's Hospital of Shenzhen & The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, China
| | - Li Chen
- Department of obstetrics and gynecology, The Seventh Affiliated Hospital, Sun Yat-sen University, Zhenyuan Rd, Guangming Dist., Shenzhen, Guangdong 518107, China
| | - Yumei Luo
- Longgang District People's Hospital of Shenzhen & The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong, China.
| | - Juan Du
- Ciechanover Institute of Precision and Regenerative Medicine, School of Medicine, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China.
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3
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Lee W, Suresh M. Vaccine adjuvants to engage the cross-presentation pathway. Front Immunol 2022; 13:940047. [PMID: 35979365 PMCID: PMC9376467 DOI: 10.3389/fimmu.2022.940047] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/08/2022] [Indexed: 11/13/2022] Open
Abstract
Adjuvants are indispensable components of vaccines for stimulating optimal immune responses to non-replicating, inactivated and subunit antigens. Eliciting balanced humoral and T cell-mediated immunity is paramount to defend against diseases caused by complex intracellular pathogens, such as tuberculosis, malaria, and AIDS. However, currently used vaccines elicit strong antibody responses, but poorly stimulate CD8 cytotoxic T lymphocyte (CTL) responses. To elicit potent CTL memory, vaccines need to engage the cross-presentation pathway, and this requirement has been a crucial bottleneck in the development of subunit vaccines that engender effective T cell immunity. In this review, we focus on recent insights into DC cross-presentation and the extent to which clinically relevant vaccine adjuvants, such as aluminum-based nanoparticles, water-in oil emulsion (MF59) adjuvants, saponin-based adjuvants, and Toll-like receptor (TLR) ligands modulate DC cross-presentation efficiency. Further, we discuss the feasibility of using carbomer-based adjuvants as next generation of adjuvant platforms to elicit balanced antibody- and T-cell based immunity. Understanding of the molecular mechanism of DC cross-presentation and the mode of action of adjuvants will pave the way for rational design of vaccines for infectious diseases and cancer that require balanced antibody- and T cell-based immunity.
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Zhang G, Wang A, Zhuang L, Wang X, Song Z, Liang R, Ren M, Long M, Jia X, Li Z, Su S, Wang J, Zhang N, Shen G, Wang B. Enrichment of boron element in follicular fluid and its potential effect on the immune function. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 304:119147. [PMID: 35314206 DOI: 10.1016/j.envpol.2022.119147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/23/2022] [Accepted: 03/13/2022] [Indexed: 06/14/2023]
Abstract
The blood-follicle barrier (BFB) between the blood and follicular fluid (FF) can maintain the microenvironment balance of oocyte. Boron, an exogenous environmental trace element, has been found to possibly play an important role in oocyte maturation. This study aimed to examine the distribution characteristics of boron across the BFB and find the potential effect of boron on FF microenvironment. We analyzed the concentration of boron in paired FF and serum collected from 168 women undergoing in vitro fertilization and embryo transfer in Beijing City and Shandong Province, China. To explore the potential health impact of boron enrichment in oocyte maturation, a global proteomics analysis was conducted to tentatively correlate the protein levels with the boron enrichment. Interestingly, the results showed that the concentration of boron in FF (34.5 ng/mL) was significantly higher than that in serum (22.0 ng/mL), with a median concentration ratio of 1.52. Likewise, the concentrations of boron in FF and serum were positively correlated (r = 0.446), suggesting that boron concentration in serum can represent its concentration in follicular fluid to a large extent.. This is the first time to observe the enrichment of boron in the FF to our knowledge. It is interesting to observe a total of 13 proteins, which mainly belong to immunoglobulin class, were positively correlated with boron concentration in FF. We concluded that boron, as one environmental trace element, was enriched in FF from blood validated by two area in north china, which may be involved in an increased level of immune processes of immunoglobulins.
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Affiliation(s)
- Guohuan Zhang
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Anni Wang
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - Lili Zhuang
- Reproductive Medicine Centre, Yuhuangding Hospital of Yantai, Affiliated Hospital of Qingdao University, Yantai, 264000, China
| | - Xikai Wang
- School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Ziyi Song
- Reproductive Medical Center, Peking University People's Hospital, Beijing, 100044, China
| | - Rong Liang
- Reproductive Medical Center, Peking University People's Hospital, Beijing, 100044, China
| | - Mengyuan Ren
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Manman Long
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Xiaoqian Jia
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Zhiwen Li
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Shu Su
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Jiahao Wang
- China Center for Health Development Studies, School of Public Health, Peking University, Beijing, 100191, China
| | - Nan Zhang
- Gynecology Department, Peking University Cancer Hospital and Institute, Key Laboratory of Carcinogenesis and Translational Research, Beijing, 100871, China
| | - Guofeng Shen
- College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Bin Wang
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China.
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Xu X, Sui B, Liu X, Sun J. Superior low-immunogenicity of tilapia type I collagen based on unique secondary structure with single calcium binding motif over terrestrial mammals by inhibiting activation of DC intracellular Ca 2+-mediated STIM1-Orai1/NF-кB pathway. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 131:112503. [PMID: 34857289 DOI: 10.1016/j.msec.2021.112503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 09/30/2021] [Accepted: 10/16/2021] [Indexed: 01/02/2023]
Abstract
The reason for low- or non-immunogenicity of fish collagens is still in doubt, which, to some extent, bottlenecks their production and clinical application as biomaterials. Employing bovine or porcine type I collagens (BCI or PCI) as controls in this paper, we intensively investigate the influence of tilapia type I collagens (TCI) on the function of dendritic cells (DCs) and T cells. From bio-informatic analyses, as well as data obtained in vitro and in vivo, we find the variations in amino acid sequences lead to only one calcium binding motif in the secondary structure of TCI, compared with three in BCI or PCI. So when TCI (together with the minor amount of Ca2+ they take) are uptaken, intracellular [Ca2+] remains stable and DCs maintain immature. On the contrary, those that have uptaken PCI or BCI experience not only increased [Ca2+] in the plasma but also phosphorylation of p65, resulting in activation of STIM1-Orai1/NF-кB signaling pathway and DC maturation. We fully prove our results on mice models, with no obvious cellular and humoral immune reactions. Our study primarily reveal the underlying mechanisms why TCI, different from BCI or PCI, show almost non-immunogenicity. Our findings are of great importance for the promotion and wide application of TCI in biomedicine.
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Affiliation(s)
- Xiao Xu
- Department of Dental Materials, Shanghai Biomaterials Research & Testing Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, PR China
| | - Baiyan Sui
- Department of Dental Materials, Shanghai Biomaterials Research & Testing Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, PR China
| | - Xin Liu
- Department of Dental Materials, Shanghai Biomaterials Research & Testing Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, PR China.
| | - Jiao Sun
- Department of Dental Materials, Shanghai Biomaterials Research & Testing Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology, Shanghai, 200011, PR China.
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6
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Bohmwald K, Gálvez NMS, Andrade CA, Mora VP, Muñoz JT, González PA, Riedel CA, Kalergis AM. Modulation of Adaptive Immunity and Viral Infections by Ion Channels. Front Physiol 2021; 12:736681. [PMID: 34690811 PMCID: PMC8531258 DOI: 10.3389/fphys.2021.736681] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/10/2021] [Indexed: 12/15/2022] Open
Abstract
Most cellular functions require of ion homeostasis and ion movement. Among others, ion channels play a crucial role in controlling the homeostasis of anions and cations concentration between the extracellular and intracellular compartments. Calcium (Ca2+) is one of the most relevant ions involved in regulating critical functions of immune cells, allowing the appropriate development of immune cell responses against pathogens and tumor cells. Due to the importance of Ca2+ in inducing the immune response, some viruses have evolved mechanisms to modulate intracellular Ca2+ concentrations and the mobilization of this cation through Ca2+ channels to increase their infectivity and to evade the immune system using different mechanisms. For instance, some viral infections require the influx of Ca2+ through ionic channels as a first step to enter the cell, as well as their replication and budding. Moreover, through the expression of viral proteins on the surface of infected cells, Ca2+ channels function can be altered, enhancing the pathogen evasion of the adaptive immune response. In this article, we review those ion channels and ion transporters that are essential for the function of immune cells. Specifically, cation channels and Ca2+ channels in the context of viral infections and their contribution to the modulation of adaptive immune responses.
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Affiliation(s)
- Karen Bohmwald
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Nicolás M. S. Gálvez
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Catalina A. Andrade
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Valentina P. Mora
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - José T. Muñoz
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo A. González
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudia A. Riedel
- Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Millennium Institute on Immunology and Immunotherapy, Universidad Andres Bello, Santiago, Chile
| | - Alexis M. Kalergis
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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Silva-Rojas R, Laporte J, Böhm J. STIM1/ ORAI1 Loss-of-Function and Gain-of-Function Mutations Inversely Impact on SOCE and Calcium Homeostasis and Cause Multi-Systemic Mirror Diseases. Front Physiol 2020; 11:604941. [PMID: 33250786 PMCID: PMC7672041 DOI: 10.3389/fphys.2020.604941] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 10/15/2020] [Indexed: 12/19/2022] Open
Abstract
Store-operated Ca2+ entry (SOCE) is a ubiquitous and essential mechanism regulating Ca2+ homeostasis in all tissues, and controls a wide range of cellular functions including keratinocyte differentiation, osteoblastogenesis and osteoclastogenesis, T cell proliferation, platelet activation, and muscle contraction. The main SOCE actors are STIM1 and ORAI1. Depletion of the reticular Ca2+ stores induces oligomerization of the luminal Ca2+ sensor STIM1, and the oligomers activate the plasma membrane Ca2+ channel ORAI1 to trigger extracellular Ca2+ entry. Mutations in STIM1 and ORAI1 result in abnormal SOCE and lead to multi-systemic disorders. Recessive loss-of-function mutations are associated with CRAC (Ca2+ release-activated Ca2+) channelopathy, involving immunodeficiency and autoimmunity, muscular hypotonia, ectodermal dysplasia, and mydriasis. In contrast, dominant STIM1 and ORAI1 gain-of-function mutations give rise to tubular aggregate myopathy and Stormorken syndrome (TAM/STRMK), forming a clinical spectrum encompassing muscle weakness, thrombocytopenia, ichthyosis, hyposplenism, short stature, and miosis. Functional studies on patient-derived cells revealed that CRAC channelopathy mutations impair SOCE and extracellular Ca2+ influx, while TAM/STRMK mutations induce excessive Ca2+ entry through SOCE over-activation. In accordance with the opposite pathomechanisms underlying both disorders, CRAC channelopathy and TAM/STRMK patients show mirror phenotypes at the clinical and molecular levels, and the respective animal models recapitulate the skin, bones, immune system, platelet, and muscle anomalies. Here we review and compare the clinical presentations of CRAC channelopathy and TAM/STRMK patients and the histological and molecular findings obtained on human samples and murine models to highlight the mirror phenotypes in different tissues, and to point out potentially undiagnosed anomalies in patients, which may be relevant for disease management and prospective therapeutic approaches.
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Affiliation(s)
- Roberto Silva-Rojas
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Inserm U1258, CNRS UMR 7104, Université de Strasbourg, Illkirch, France
| | - Jocelyn Laporte
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Inserm U1258, CNRS UMR 7104, Université de Strasbourg, Illkirch, France
| | - Johann Böhm
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Inserm U1258, CNRS UMR 7104, Université de Strasbourg, Illkirch, France
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Expression of Concern: The Orai-1 and STIM-1 complex controls human dendritic cell maturation. PLoS One 2020; 15:e0231469. [PMID: 32240247 PMCID: PMC7117674 DOI: 10.1371/journal.pone.0231469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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9
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Yan J, Zhao W, Gao C, Liu X, Zhao X, Wei T, Gao Z. Leucine-rich repeat kinase 2 regulates mouse dendritic cell migration by ORAI2. FASEB J 2019; 33:9775-9784. [PMID: 31166814 DOI: 10.1096/fj.201802550r] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The leucine-rich repeat kinase 2 (LRRK2) is expressed in various immune cells and involved in regulating inflammatory processes. LRRK2 facilitates calcium extrusion exchanger and sodium-calcium exchanger activity and hence influences intracellular Ca2+ concentration in dendritic cells (DCs). DC maturation and migration are governed by the intracellular Ca2+ concentration, but the related mechanisms whereby LRRK2 regulates DC function and involved Ca2+ channels are still under investigation. In the previous study, we found that LRRK2-/- DCs exhibited higher store-operated Ca2+ entry (SOCE) activity than LRRK2+/+ DCs. Herein, we ascertained the exact SOCE components by using genetic, pharmacological, and fluorescent approaches. Ca2+ imaging showed that LRRK2 kinase activity negatively modulated SOCE activity. Moreover, LRRK2 deficiency resulted in an enhanced migration capacity of DCs but had little effect on the maturation process. SOCE is widely known to regulate DC functions; we wanted to dissect the reason why LRRK2 specifically influenced DC migration and therefore silenced ORAI1, ORAI2, and ORAI3, respectively. Transwell assays showed that both ORAI1 and ORAI2 silencing markedly decreased the migration of DCs, but only ORAI1 deficiency influenced the expression of maturation markers CD11c, CD86, and major histocompatibility complex class II. Of note, LRRK2 deficiency increased ORAI2 expression but not that of ORAI1 and ORAI3. Thus, we suggest that LRRK2 modulates DC migration by interfering with ORAI2.-Yan, J., Zhao, W., Gao, C., Liu, X., Zhao, X., Wei, T., Gao, Z. Leucine-rich repeat kinase 2 regulates mouse dendritic cell migration by ORAI2.
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Affiliation(s)
- Jing Yan
- Department of Physiology, Jining Medical University, Jining, China.,Department of Physiology, Xinxiang Medical University, Xinxiang, China
| | - Wenhui Zhao
- Department of Pathology, Huaian Nursing College, Huaian, China
| | - Chao Gao
- Department of Physiology, Jining Medical University, Jining, China.,Department of Physiology, Xinxiang Medical University, Xinxiang, China
| | - Xia Liu
- Department of Physiology, Jining Medical University, Jining, China.,Department of Physiology, Xinxiang Medical University, Xinxiang, China
| | - Xiuliang Zhao
- Department of Physiology, Jining Medical University, Jining, China.,Department of Physiology, Xinxiang Medical University, Xinxiang, China
| | - Ting Wei
- Department of Physiology, Jining Medical University, Jining, China.,Department of Physiology, Xinxiang Medical University, Xinxiang, China
| | - Zhaodi Gao
- Department of Physiology, Jining Medical University, Jining, China.,Department of Physiology, Xinxiang Medical University, Xinxiang, China
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10
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Investigation of novel variations of ORAI1 gene and their association with Kawasaki disease. J Hum Genet 2019; 64:511-519. [PMID: 30853710 DOI: 10.1038/s10038-019-0588-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/07/2019] [Accepted: 02/21/2019] [Indexed: 11/09/2022]
Abstract
ORAI1 encodes a calcium channel essential in the store-operated calcium entry mechanism. A previous genetic association study identified a rare in-frame insertion variant of ORAI1 conferring Kawasaki disease (KD). To deepen our understanding of the involvement of rare variants of ORAI1 in KD pathogenesis, we investigated 3812 patients with KD and 2644 healthy individuals for variations in the protein-coding region of ORAI1. By re-sequencing the study participants' DNA, 27 variants with minor allele frequencies (MAFs) < 0.01 that had not been examined in the previous study were identified. Although no significant association with KD was observed either in single-variant analyses or in a collapsing method analysis of the 27 variants, stratification by MAFs, variant types, and predicted deleteriousness revealed that six rare, deleterious, missense variants (MAF < 0.001, CADD C-score ≥ 20) were exclusively present in KD patients, including three refractory cases (OR = ∞, P = 0.046). The six missense variants include p.Gly98Asp, which has been demonstrated to result in gain of function leading to constitutive Ca2+ entry. Conversely, five types of frameshift variants, all identified near the N terminus and assumed to disrupt ORAI1 function, showed an opposite trend of association (OR = 0.35, P = 0.24). These findings support our hypothesis that genetic variations causing the upregulation of the Ca2+/NFAT pathway confer susceptibility to KD. Our findings also provide insights into the usefulness of stratifying the variants based on their MAFs and on the direction of the effects on protein function when conducting association studies using the gene-based collapsing method.
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11
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Clemens RA, Lowell CA. CRAC channel regulation of innate immune cells in health and disease. Cell Calcium 2019; 78:56-65. [PMID: 30641250 PMCID: PMC8055042 DOI: 10.1016/j.ceca.2019.01.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/26/2018] [Accepted: 01/08/2019] [Indexed: 01/17/2023]
Abstract
Calcium is a major intracellular signaling messenger in innate immune cells. Similar to other immune cell subsets, the majority of calcium entry into innate immune cells is induced by cell surface receptors that stimulate store-operated calcium entry through calcium-release activated calcium (CRAC) channels. Since the molecular description of the STIM family of calcium sensors and the ORAI family of CRAC channel proteins, the majority of studies support a dominant role for these proteins in calcium signaling in innate cells. In reviewing the literature on CRAC channel function in innate cells, several general themes emerge. All innate cells express multiple members of the STIM and ORAI family members, however the ratio and relative contribution of individual isoforms changes depending on the cell type and activation state of the cell. It is evident that study of functional roles for STIM molecules is clearly ahead of studies of specific ORAI family members in all innate cell types, and that studies of CRAC channels in innate cells are not nearly as advanced as studies in lymphocytes. However, taken together, evidence from both STIM calcium sensors and ORAI channels in innate cells indicates that deficiency of STIM and ORAI proteins tends not to affect the development of any innate cell lineage, but certainly affects their function, in particular activation of the neutrophil oxidase and mast cell activation via IgE receptors. Furthermore, there are clearly hints that therapeutic targeting of CRAC channels in innate cells offers a new approach to various inflammatory and allergic diseases.
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Affiliation(s)
- Regina A Clemens
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, United States.
| | - Clifford A Lowell
- Department of Laboratory Medicine, University of California, San Francisco, CA, United States
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12
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Molteni L, Rizzi L, Bresciani E, Meanti R, Fehrentz JA, Verdié P, Omeljaniuk RJ, Biagini G, Locatelli V, Torsello A. STIM Proteins and Orai Ca 2+ Channels Are Involved in the Intracellular Pathways Activated by TLQP-21 in RAW264.7 Macrophages. Front Pharmacol 2018; 9:1386. [PMID: 30542288 PMCID: PMC6277904 DOI: 10.3389/fphar.2018.01386] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 11/12/2018] [Indexed: 01/01/2023] Open
Abstract
TLQP-21 is a neuropeptide which has been implicated in regulation of nociception and other relevant physiologic functions. Although recent studies identified C3a and gC1q receptors as targets for TLQP-21, its intracellular molecular mechanisms of action remain largely unidentified. Our aim was (i) to explore the intracellular signaling pathway(s) activated by JMV5656, a novel derivative of TLQP-21, in RAW264.7 macrophages, and (ii) to assess linkages of these pathways with its purported receptors. JMV5656 stimulated, in a dose-dependent fashion, a rapid and transient increase in intracellular Ca2+ concentrations in RAW264.7 cells; repeated exposure to the peptide resulted in a lower response, suggesting a possible desensitization mechanism of the receptor. In particular, JMV5656 increased cytoplasmic Ca2+ levels by a PLC-dependent release of Ca2+ from the endoplasmic reticulum. STIM proteins and Orai Ca2+ channels were activated and played a crucial role. In fact, treatment of the cells with U73122 and thapsigargin modulated the increase of intracellular Ca2+ levels stimulated by JMV5656. Moreover, in RAW264.7 cells intracellular Ca2+ increases did not occur through the binding of JMV5656 to the C3a receptor, since the increase of intracellular Ca2+ levels induced by JMV5656 was not affected by specific siRNA against C3aR. In summary, our study provides new indications for the downstream effects of JMV5656 in macrophages, suggesting that it could activate receptors different from the C3aR.
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Affiliation(s)
- Laura Molteni
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Laura Rizzi
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Elena Bresciani
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Ramona Meanti
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Jean-Alain Fehrentz
- CNRS, Max Mousseron Institute of Biomolecules UMR5247, ENSCM, University of Montpellier, Montpellier, France
| | - Pascal Verdié
- CNRS, Max Mousseron Institute of Biomolecules UMR5247, ENSCM, University of Montpellier, Montpellier, France
| | | | - Giuseppe Biagini
- Department of Biomedical, Metabolic and Neural Sciences, Laboratory of Experimental Epileptology, University of Modena and Reggio Emilia, Modena, Italy
| | - Vittorio Locatelli
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Antonio Torsello
- School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
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13
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Yan J, Fu Z, Zhang L, Li C. Orai1 is involved in leptin-sensitive cell maturation in mouse dendritic cells. Biochem Biophys Res Commun 2018; 503:1747-1753. [PMID: 30054044 DOI: 10.1016/j.bbrc.2018.07.108] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 07/21/2018] [Indexed: 10/28/2022]
Abstract
Store operated calcium entry(SOCE) is known to play a pivotal role in DCs functions including migration, maturation and antigen-presenting ability. Orai1, the major component of SOCE which mainly pairs with Stim1, is surely involved in the regulation of DCs functions. Leptin is recently found to mature DCs, we aim to evaluate the role of Orai1 in leptin-induced dendritic cells(DCs) maturation process and elucidate the mechanism. To this end, Flow cytometry and ELISA were utilized to detect the costimulatory molecule CD86 expression and IL-12 secretion, respectively. Transwell assay was used to examine DCs migration capacity. To evaluate the activity of SOCE, calcium(Ca2+) imaging was performed. Firstly, we confirmed the positive effects of leptin upon SOCE and Orai1 expression in DCs isolated from mouse bone marrow. Secondly, we showed that the effects of leptin on DCs migration and maturation are Orai1 dependent. Moreover, Janus kinase 2(Jak2) silencing inhibited leptin-induced Orai1 expression and influenced DCs functions including migration and maturation as well as IL-12 secretion. In conclusion, our results imply that leptin regulates Orai1 by activating Jak2 signaling pathway, hence facilitating DCs migration and maturation.
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Affiliation(s)
- Jing Yan
- Department of Physiology and Neurobiology, Xinxiang Medical University, China; Sino-UK Joint Laboratory of Brain Functions and Injury, Xinxiang Medical University, Henan province, China
| | - Zixing Fu
- Department of Physiology and Neurobiology, Xinxiang Medical University, China; Sino-UK Joint Laboratory of Brain Functions and Injury, Xinxiang Medical University, Henan province, China
| | - Libin Zhang
- Department of Physiology and Neurobiology, Xinxiang Medical University, China; Sino-UK Joint Laboratory of Brain Functions and Injury, Xinxiang Medical University, Henan province, China
| | - Chaokun Li
- Department of Physiology and Neurobiology, Xinxiang Medical University, China; Sino-UK Joint Laboratory of Brain Functions and Injury, Xinxiang Medical University, Henan province, China.
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14
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Mei Y, Barrett JE, Hu H. Calcium release-activated calcium channels and pain. Cell Calcium 2018; 74:180-185. [PMID: 30096536 DOI: 10.1016/j.ceca.2018.07.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/10/2018] [Accepted: 07/27/2018] [Indexed: 12/30/2022]
Abstract
Calcium release-activated calcium (CRAC) channels are unique among ion channels that are activated in response to depletion of intracellular calcium stores and are highly permeable to Ca2+ compared to other cations. CRAC channels mediate an important calcium signal for a wide variety of cell types and are well studied in the immune system. They have been implicated in a number of disorders such as immunodeficiency, musculosketal disorders and cancer. There is growing evidence showing that CRAC channels are expressed in the nervous system and are involved in pathological conditions including pain. This review summarizes the expression, distribution, and function of the CRAC channel family in the dorsal root ganglion, spinal cord and some brain regions, and discusses their functional significance in neurons and glial cells and involvement in nociception and chronic pain. Although further studies are needed to understand how these channels are activated under physiological conditions, the recent findings indicate that the CRAC channel Orai1 is an important player in pain modulation and could represent a new target for pathological pain.
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Affiliation(s)
- Yixiao Mei
- Department of Anesthesiology, Rutgers New Jersey Medical School, Newark, NJ 07103, United States
| | - James E Barrett
- Department of Neurology, Drexel University College of Medicine Philadelphia, PA 19102, United States
| | - Huijuan Hu
- Department of Anesthesiology, Rutgers New Jersey Medical School, Newark, NJ 07103, United States.
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15
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Lin W, Buscher K, Wang B, Fan Z, Song N, Li P, Yue Y, Li B, Li C, Bi H. Soluble CD83 Alleviates Experimental Autoimmune Uveitis by Inhibiting Filamentous Actin-Dependent Calcium Release in Dendritic Cells. Front Immunol 2018; 9:1567. [PMID: 30050530 PMCID: PMC6052908 DOI: 10.3389/fimmu.2018.01567] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 06/25/2018] [Indexed: 01/03/2023] Open
Abstract
Soluble CD83 (sCD83) is the extracellular domain of the membrane-bound CD83 molecule, and known for its immunoregulatory functions. Whether and how sCD83 participates in the pathogenesis of uveitis, a serious inflammatory disease of the eye that can cause visual disability and blindness, is unknown. By flow cytometry and imaging studies, we show that sCD83 alleviates experimental autoimmune uveitis (EAU) through a novel mechanism. During onset and recovery of EAU, the level of sCD83 rises in the serum and aqueous humor, and CD83+ leukocytes infiltrate the inflamed eye. Systemic or topical application of sCD83 exerts a protective effect by decreasing inflammatory cytokine expression, reducing ocular and splenic leukocyte including CD4+ T cells and dendritic cells (DCs). Mechanistically, sCD83 induces tolerogenic DCs by decreasing the synaptic expression of co-stimulatory molecules and hampering the calcium response in DCs. These changes are caused by a disruption of the cytoskeletal rearrangements at the DC–T cell contact zone, leading to altered localization of calcium microdomains and suppressed T-cell activation. Thus, the ability of sCD83 to modulate DC-mediated inflammation in the eye could be harnessed to develop new immunosuppressive therapeutics for autoimmune uveitis.
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Affiliation(s)
- Wei Lin
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, China.,Eye Institute of Shandong University of Traditional Chinese Medicine, Jinan, China.,Department of Immunology, Shanghai Medical School, Fudan University, Shanghai, China
| | - Konrad Buscher
- Department of Nephrology and Rheumatology, University Hospital Muenster, Münster, Germany.,Division of Inflammation Biology, La Jolla Institute for Allergy and Immunology, La Jolla, United States
| | - Beibei Wang
- Eye Institute of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhichao Fan
- Division of Inflammation Biology, La Jolla Institute for Allergy and Immunology, La Jolla, United States
| | - Nannan Song
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, China
| | - Peng Li
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, China
| | - Yingying Yue
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, China
| | - Bingqing Li
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, China
| | - Cuiling Li
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, China
| | - Hongsheng Bi
- Eye Institute of Shandong University of Traditional Chinese Medicine, Jinan, China
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16
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Regulation of human dendritic cell immune functions by ion channels. Curr Opin Immunol 2018; 52:27-31. [PMID: 29574094 DOI: 10.1016/j.coi.2018.03.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/05/2018] [Accepted: 03/07/2018] [Indexed: 01/12/2023]
Abstract
Dendritic cells (DCs) are highly specialized antigen-presenting cells (APCs) able to induce both specific immunity and immune tolerance. Using information gathered from the tissue where they reside, DCs adjust their functional activity to ensure that protective immunity is favoured while unwanted or exaggerated immune responses are prevented. The remarkable ability of these cells to induce, enhance and orient the immune response, while at the same time maintaining self-tolerance, makes them key players in the immune system. Despite the fact that the role of Ca2+ has been clearly established in human DC functions, the link between ion homeostasis, mainly Ca2+, and DC functions is not fully understood. After all, a growing number of works clearly show the role of SOCE and associated channels in the maturation step, and those of K+ channels in migration. This review highlights the key papers published over the past few years and summarizes prospects for the near future.
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17
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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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18
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Maschalidi S, Nunes-Hasler P, Nascimento CR, Sallent I, Lannoy V, Garfa-Traore M, Cagnard N, Sepulveda FE, Vargas P, Lennon-Duménil AM, van Endert P, Capiod T, Demaurex N, Darrasse-Jèze G, Manoury B. UNC93B1 interacts with the calcium sensor STIM1 for efficient antigen cross-presentation in dendritic cells. Nat Commun 2017; 8:1640. [PMID: 29158474 PMCID: PMC5696382 DOI: 10.1038/s41467-017-01601-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 10/02/2017] [Indexed: 11/25/2022] Open
Abstract
Dendritic cells (DC) have the unique ability to present exogenous antigens via the major histocompatibility complex class I pathway to stimulate naive CD8+ T cells. In DCs with a non-functional mutation in Unc93b1 (3d mutation), endosomal acidification, phagosomal maturation, antigen degradation, antigen export to the cytosol and the function of the store-operated-Ca2+-entry regulator STIM1 are impaired. These defects result in compromised antigen cross-presentation and anti-tumor responses in 3d-mutated mice. Here, we show that UNC93B1 interacts with the calcium sensor STIM1 in the endoplasmic reticulum, a critical step for STIM1 oligomerization and activation. Expression of a constitutively active STIM1 mutant, which no longer binds UNC93B1, restores antigen degradation and cross-presentation in 3d-mutated DCs. Furthermore, ablation of STIM1 in mouse and human cells leads to a decrease in cross-presentation. Our data indicate that the UNC93B1 and STIM1 cooperation is important for calcium flux and antigen cross-presentation in DCs. STIM proteins sense Ca2+ depletion in the ER and activate store-operated Ca2+ entry in response, a process associated with dendritic cell (DC) functions. Here, the authors show that optimal antigen cross-presentation in DCs requires the association of the chaperone molecule UNC93B1 with STIM1.
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Affiliation(s)
- Sophia Maschalidi
- INSERM UMR1163, Laboratory of Normal and Pathological Homeostasis of the Immune System, Imagine Institute, 75015, Paris, France.,Faculté de médecine Paris Descartes, Université Paris Descartes, 75015, Paris, France
| | - Paula Nunes-Hasler
- Department of Cell Physiology and Metabolism, University of Geneva, CH-1211, Geneva, Switzerland
| | - Clarissa R Nascimento
- Faculté de médecine Paris Descartes, Université Paris Descartes, 75015, Paris, France.,Institut National de la Santé et de la Recherche Médicale, Unité 1151, 75015, Paris, France.,Centre National de la Recherche Scientifique, UMR 8253, 75015, Paris, France
| | - Ignacio Sallent
- Faculté de médecine Paris Descartes, Université Paris Descartes, 75015, Paris, France.,Institut National de la Santé et de la Recherche Médicale, Unité 1151, 75015, Paris, France.,Centre National de la Recherche Scientifique, UMR 8253, 75015, Paris, France
| | - Valérie Lannoy
- Faculté de médecine Paris Descartes, Université Paris Descartes, 75015, Paris, France.,Institut National de la Santé et de la Recherche Médicale, Unité 1151, 75015, Paris, France.,Centre National de la Recherche Scientifique, UMR 8253, 75015, Paris, France
| | - Meriem Garfa-Traore
- Faculté de médecine Paris Descartes, Université Paris Descartes, 75015, Paris, France.,Cell Imaging and Bioinformatic Platform, INSERM US24 Structure Federative de Recherche Necker, 75015, Paris, France
| | - Nicolas Cagnard
- Faculté de médecine Paris Descartes, Université Paris Descartes, 75015, Paris, France.,Cell Imaging and Bioinformatic Platform, INSERM US24 Structure Federative de Recherche Necker, 75015, Paris, France
| | - Fernando E Sepulveda
- INSERM UMR1163, Laboratory of Normal and Pathological Homeostasis of the Immune System, Imagine Institute, 75015, Paris, France.,Faculté de médecine Paris Descartes, Université Paris Descartes, 75015, Paris, France
| | - Pablo Vargas
- Institut Curie, PSL Research University, Centre National de la Recherche Scientifique, UMR 144, 75005, Paris, France.,Institut Pierre-Gilles de Genes, PSL Research University, 75005, Paris, France
| | - Ana-Maria Lennon-Duménil
- Institut National de la Santé et de la Recherché Médicale, Unité 932, Institut Curie, PSL Research University, 75005, Paris, France
| | - Peter van Endert
- Faculté de médecine Paris Descartes, Université Paris Descartes, 75015, Paris, France.,Institut National de la Santé et de la Recherche Médicale, Unité 1151, 75015, Paris, France.,Centre National de la Recherche Scientifique, UMR 8253, 75015, Paris, France
| | - Thierry Capiod
- Faculté de médecine Paris Descartes, Université Paris Descartes, 75015, Paris, France.,Institut National de la Santé et de la Recherche Médicale, Unité 1151, 75015, Paris, France.,Centre National de la Recherche Scientifique, UMR 8253, 75015, Paris, France
| | - Nicolas Demaurex
- Department of Cell Physiology and Metabolism, University of Geneva, CH-1211, Geneva, Switzerland
| | - Guillaume Darrasse-Jèze
- Faculté de médecine Paris Descartes, Université Paris Descartes, 75015, Paris, France.,Institut National de la Santé et de la Recherche Médicale, Unité 1151, 75015, Paris, France.,Centre National de la Recherche Scientifique, UMR 8253, 75015, Paris, France
| | - Bénédicte Manoury
- Faculté de médecine Paris Descartes, Université Paris Descartes, 75015, Paris, France. .,Institut National de la Santé et de la Recherche Médicale, Unité 1151, 75015, Paris, France. .,Centre National de la Recherche Scientifique, UMR 8253, 75015, Paris, France.
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19
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Chen YC, Chang YC, Chang HA, Lin YS, Tsao CW, Shen MR, Chiu WT. Differential Ca 2+ mobilization and mast cell degranulation by FcεRI- and GPCR-mediated signaling. Cell Calcium 2017; 67:31-39. [PMID: 29029788 DOI: 10.1016/j.ceca.2017.08.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 08/03/2017] [Accepted: 08/03/2017] [Indexed: 12/11/2022]
Abstract
Mast cells play a primary role in allergic diseases. During an allergic reaction, mast cell activation is initiated by cross-linking IgE-FcεRI complex by multivalent antigen resulting in degranulation. Additionally, G protein-coupled receptors also induce degranulation upon activation. However, the spatio-temporal relationship between Ca2+ mobilization and mast cell degranulation is not well understood. We investigated the relationship between oscillations in Ca2+ level and mast cell degranulation upon stimulation in rat RBL-2H3 cells. Nile red and Fluo-4 were used as probes for monitoring histamine and intracellular Ca2+ levels, respectively. Histamine release and Ca2+ oscillations in real-time were monitored using total internal reflection fluorescence microscopy (TIRFM). Mast cell degranulation followed immediately after FcεRI and GPCR-mediated Ca2+ increase. FcεRI-induced Ca2+ increase was higher and more sustained than that induced by GPCRs. However, no significant difference in mast cell degranulation rates was observed. Although intracellular Ca2+ release was both necessary and sufficient for mast cell degranulation, extracellular Ca2+ influx enhanced the process. Furthermore, cytosolic Ca2+ levels and mast cell degranulation were significantly decreased by downregulation of store-operated Ca2+ entry (SOCE) via Orai1 knockdown, 2-aminoethyl diphenylborinate (2-APB) or tubastatin A (TSA) treatment. Collectively, this study has demonstrated the role of Ca2+ signaling in regulating histamine degranulation.
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Affiliation(s)
- Ying-Chi Chen
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan
| | - Yu-Chung Chang
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan
| | - Heng-Ai Chang
- Institute of Basic Medical Sciences, National Cheng Kung University, Tainan 701, Taiwan
| | - Yu-Shan Lin
- Institute of Basic Medical Sciences, National Cheng Kung University, Tainan 701, Taiwan
| | - Chiung-Wen Tsao
- Department of Nursing, Chung Hwa University of Medical Technology, Tainan 717, Taiwan
| | - Meng-Ru Shen
- Institute of Basic Medical Sciences, National Cheng Kung University, Tainan 701, Taiwan; Department of Pharmacology, National Cheng Kung University, Tainan 701, Taiwan
| | - Wen-Tai Chiu
- Department of Biomedical Engineering, National Cheng Kung University, Tainan 701, Taiwan; Institute of Basic Medical Sciences, National Cheng Kung University, Tainan 701, Taiwan; Medical Device Innovation Center, National Cheng Kung University, Tainan 701, Taiwan.
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20
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XU JINMEI, ZHOU YAN, GAO LONG, ZHOU SHUXIAN, LIU WEIHUA, LI XIAOAN. Stromal interaction molecule 1 plays an important role in gastric cancer progression. Oncol Rep 2016; 35:3496-504. [DOI: 10.3892/or.2016.4704] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 12/27/2015] [Indexed: 11/05/2022] Open
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21
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Crottès D, Félix R, Meley D, Chadet S, Herr F, Audiger C, Soriani O, Vandier C, Roger S, Angoulvant D, Velge-Roussel F. Immature human dendritic cells enhance their migration through KCa3.1 channel activation. Cell Calcium 2016; 59:198-207. [PMID: 27020659 DOI: 10.1016/j.ceca.2016.02.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 02/15/2016] [Accepted: 02/15/2016] [Indexed: 11/26/2022]
Abstract
Migration capacity is essential for dendritic cells (DCs) to present antigen to T cells for the induction of immune response. The DC migration is supposed to be a calcium-dependent process, while not fully understood. Here, we report a role of the KCa3.1/IK1/SK4 channels in the migration capacity of both immature (iDC) and mature (mDC) human CD14(+)-derived DCs. KCa3.1 channels were shown to control the membrane potential of human DC and the Ca(2+) entry, which is directly related to migration capacities. The expression of migration marker such as CCR5 and CCR7 was modified in both types of DCs by TRAM-34 (100nM). But, only the migration of iDC was decreased by use of both TRAM-34 and KCa3.1 siRNA. Confocal analyses showed a close localization of CCR5 with KCa3.1 in the steady state of iDC. Finally, the implication of KCa3.1 seems to be limited to the migration capacities as T cell activation of DCs appeared unchanged. Altogether, these results demonstrated that KCa3.1 channels have a pro-migratory effect on iDC migration. Our findings suggest that KCa3.1 in human iDC play a major role in their migration and constitute an attractive target for the cell therapy optimization.
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Affiliation(s)
- David Crottès
- EA 4245Cellules Dendritiques, Immuno-modulation et Greffes, Université François-Rabelais de Tours, UFR de Médecine, 10 Bd Tonnellé, F-37032 Tours, France
| | - Romain Félix
- EA 4245Cellules Dendritiques, Immuno-modulation et Greffes, Université François-Rabelais de Tours, UFR de Médecine, 10 Bd Tonnellé, F-37032 Tours, France
| | - Daniel Meley
- EA 4245Cellules Dendritiques, Immuno-modulation et Greffes, Université François-Rabelais de Tours, UFR de Médecine, 10 Bd Tonnellé, F-37032 Tours, France
| | - Stéphanie Chadet
- EA 4245Cellules Dendritiques, Immuno-modulation et Greffes, Université François-Rabelais de Tours, UFR de Médecine, 10 Bd Tonnellé, F-37032 Tours, France
| | - Florence Herr
- EA 4245Cellules Dendritiques, Immuno-modulation et Greffes, Université François-Rabelais de Tours, UFR de Médecine, 10 Bd Tonnellé, F-37032 Tours, France
| | - Cindy Audiger
- EA 4245Cellules Dendritiques, Immuno-modulation et Greffes, Université François-Rabelais de Tours, UFR de Médecine, 10 Bd Tonnellé, F-37032 Tours, France
| | - Olivier Soriani
- Institut de Biologie Valrose (iBV), CNRS UMR7277, Inserm U1091, UNS 28, Avenue Valrose, 06108 Nice, France
| | - Christophe Vandier
- Institut National de la Santé et de la Recherche Médicale U1069, Université François-Rabelais de Tours, 10 Bd Tonnellé, F-37032 Tours, France
| | - Sébastien Roger
- Institut National de la Santé et de la Recherche Médicale U1069, Université François-Rabelais de Tours, 10 Bd Tonnellé, F-37032 Tours, France
| | - Denis Angoulvant
- EA 4245Cellules Dendritiques, Immuno-modulation et Greffes, Université François-Rabelais de Tours, UFR de Médecine, 10 Bd Tonnellé, F-37032 Tours, France; Service de cardiologie, CHRU de Tours, 2 Bd Tonnellé, F-37032 Tours, France
| | - Florence Velge-Roussel
- EA 4245Cellules Dendritiques, Immuno-modulation et Greffes, Université François-Rabelais de Tours, UFR de Médecine, 10 Bd Tonnellé, F-37032 Tours, France; UFR des Sciences Pharmaceutiques, Av Monge, F-37000 Tours, France.
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22
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Parenti A, De Logu F, Geppetti P, Benemei S. What is the evidence for the role of TRP channels in inflammatory and immune cells? Br J Pharmacol 2016; 173:953-69. [PMID: 26603538 DOI: 10.1111/bph.13392] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 10/25/2015] [Accepted: 11/10/2015] [Indexed: 12/11/2022] Open
Abstract
A complex network of many interacting mechanisms orchestrates immune and inflammatory responses. Among these, the cation channels of the transient receptor potential (TRP) family expressed by resident tissue cells, inflammatory and immune cells and distinct subsets of primary sensory neurons, have emerged as a novel and interrelated system to detect and respond to harmful agents. TRP channels, by means of their direct effect on the intracellular levels of cations and/or through the indirect modulation of a large series of intracellular pathways, orchestrate a range of cellular processes, such as cytokine production, cell differentiation and cytotoxicity. The contribution of TRP channels to the transition of inflammation and immune responses from a defensive early response to a chronic and pathological condition is also emerging as a possible underlying mechanism in various diseases. This review discusses the roles of TRP channels in inflammatory and immune cell function and provides an overview of the effects of inflammatory and immune TRP channels on the pathogenesis of human diseases.
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Affiliation(s)
- A Parenti
- Clinical Pharmacology and Oncology Unit, Department of Health Sciences, University of Florence, Florence, Italy
| | - F De Logu
- Clinical Pharmacology and Oncology Unit, Department of Health Sciences, University of Florence, Florence, Italy
| | - P Geppetti
- Clinical Pharmacology and Oncology Unit, Department of Health Sciences, University of Florence, Florence, Italy
| | - S Benemei
- Clinical Pharmacology and Oncology Unit, Department of Health Sciences, University of Florence, Florence, Italy
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23
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RamaKrishnan AM, Sankaranarayanan K. Understanding autoimmunity: The ion channel perspective. Autoimmun Rev 2016; 15:585-620. [PMID: 26854401 DOI: 10.1016/j.autrev.2016.02.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 01/29/2016] [Indexed: 12/11/2022]
Abstract
Ion channels are integral membrane proteins that orchestrate the passage of ions across the cell membrane and thus regulate various key physiological processes of the living system. The stringently regulated expression and function of these channels hold a pivotal role in the development and execution of various cellular functions. Malfunction of these channels results in debilitating diseases collectively termed channelopathies. In this review, we highlight the role of these proteins in the immune system with special emphasis on the development of autoimmunity. The role of ion channels in various autoimmune diseases is also listed out. This comprehensive review summarizes the ion channels that could be used as molecular targets in the development of new therapeutics against autoimmune disorders.
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Affiliation(s)
| | - Kavitha Sankaranarayanan
- AU-KBC Research Centre, Madras Institute of Technology, Anna University, Chrompet, Chennai 600 044, India.
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24
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Variations in ORAI1 Gene Associated with Kawasaki Disease. PLoS One 2016; 11:e0145486. [PMID: 26789410 PMCID: PMC4720480 DOI: 10.1371/journal.pone.0145486] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Accepted: 11/18/2015] [Indexed: 11/28/2022] Open
Abstract
Kawasaki disease (KD; MIM#61175) is a systemic vasculitis syndrome with unknown etiology which predominantly affects infants and children. Recent findings of susceptibility genes for KD suggest possible involvement of the Ca2+/NFAT pathway in the pathogenesis of KD. ORAI1 is a Ca2+ release activated Ca2+ (CRAC) channel mediating store-operated Ca2+ entry (SOCE) on the plasma membrane. The gene for ORAI1 is located in chromosome 12q24 where a positive linkage signal was observed in our previous affected sib-pair study of KD. A common non-synonymous single nucleotide polymorphism located within exon 2 of ORAI1 (rs3741596) was significantly associated with KD (P = 0.028 in the discovery sample set (729 KD cases and 1,315 controls), P = 0.0056 in the replication sample set (1,813 KD cases vs. 1,097 controls) and P = 0.00041 in a meta-analysis by the Mantel-Haenszel method). Interestingly, frequency of the risk allele of rs3741596 is more than 20 times higher in Japanese compared to Europeans. We also found a rare 6 base-pair in-frame insertion variant associated with KD (rs141919534; 2,544 KD cases vs. 2,414 controls, P = 0.012). These data indicate that ORAI1 gene variations are associated with KD and may suggest the potential importance of the Ca2+/NFAT pathway in the pathogenesis of this disorder.
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25
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Demaurex N, Nunes P. The role of STIM and ORAI proteins in phagocytic immune cells. Am J Physiol Cell Physiol 2016; 310:C496-508. [PMID: 26764049 PMCID: PMC4824159 DOI: 10.1152/ajpcell.00360.2015] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Phagocytic cells, such as neutrophils, macrophages, and dendritic cells, migrate to sites of infection or damage and are integral to innate immunity through two main mechanisms. The first is to directly neutralize foreign agents and damaged or infected cells by secreting toxic substances or ingesting them through phagocytosis. The second is to alert the adaptive immune system through the secretion of cytokines and the presentation of the ingested materials as antigens, inducing T cell maturation into helper, cytotoxic, or regulatory phenotypes. While calcium signaling has been implicated in numerous phagocyte functions, including differentiation, maturation, migration, secretion, and phagocytosis, the molecular components that mediate these Ca(2+) signals have been elusive. The discovery of the STIM and ORAI proteins has allowed researchers to begin clarifying the mechanisms and physiological impact of store-operated Ca(2+) entry, the major pathway for generating calcium signals in innate immune cells. Here, we review evidence from cell lines and mouse models linking STIM and ORAI proteins to the control of specific innate immune functions of neutrophils, macrophages, and dendritic cells.
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Affiliation(s)
- Nicolas Demaurex
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
| | - Paula Nunes
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
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26
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He L, Zhang Y, Ma G, Tan P, Li Z, Zang S, Wu X, Jing J, Fang S, Zhou L, Wang Y, Huang Y, Hogan PG, Han G, Zhou Y. Near-infrared photoactivatable control of Ca(2+) signaling and optogenetic immunomodulation. eLife 2015; 4. [PMID: 26646180 PMCID: PMC4737651 DOI: 10.7554/elife.10024] [Citation(s) in RCA: 158] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Accepted: 11/06/2015] [Indexed: 01/08/2023] Open
Abstract
The application of current channelrhodopsin-based optogenetic tools is limited by the lack of strict ion selectivity and the inability to extend the spectra sensitivity into the near-infrared (NIR) tissue transmissible range. Here we present an NIR-stimulable optogenetic platform (termed 'Opto-CRAC') that selectively and remotely controls Ca2+ oscillations and Ca2+-responsive gene expression to regulate the function of non-excitable cells, including T lymphocytes, macrophages and dendritic cells. When coupled to upconversion nanoparticles, the optogenetic operation window is shifted from the visible range to NIR wavelengths to enable wireless photoactivation of Ca2+-dependent signaling and optogenetic modulation of immunoinflammatory responses. In a mouse model of melanoma by using ovalbumin as surrogate tumor antigen, Opto-CRAC has been shown to act as a genetically-encoded 'photoactivatable adjuvant' to improve antigen-specific immune responses to specifically destruct tumor cells. Our study represents a solid step forward towards the goal of achieving remote and wireless control of Ca2+-modulated activities with tailored function. DOI:http://dx.doi.org/10.7554/eLife.10024.001 Optogenetics is a technique that has been used to study nerve cells for several years. It involves genetically engineering these cells to produce proteins from light-sensitive bacteria, and results in nerve cells that will either send, or stop sending, nerve impulses when they are exposed to a particular color of light. Neuroscientists have learned a lot about brain circuits using the technique, and now researchers in many other fields are giving it a try. There are, however, several challenges to using optogenetics in other types of cells. Nerve cells create a tiny electrical impulses when they are activated, which helps them quickly transmit messages. But other types of cells use more diverse means to communicate and transmit signals. This means that optogenetics techniques must be adapted. Additionally, many cells are located deep in the body and so getting the light to them can be difficult. He, Zhang et al. have now developed an optogenetic system (termed “Opto-CRAC”) that can control immune cells buried deep in tissue. The action of immune cells can be tuned by controlling the flow of calcium ions through gate-like proteins in their membranes. He, Zhang et al. genetically engineered immune cells so that a calcium gate-controlling protein became light sensitive. When the cells were exposed to a blue light the calcium ion gates opened. When the light was turned off, the gates closed. More intense light caused more calcium to enter into the cells. Further experiments then revealed that exposing these engineered immune cells to blue light in the laboratory could trigger an immune response. The next obstacle was getting light to immune cells in a live animal. So, He, Zhang et al. used specific nanoparticles that have been shown to help transmit light deep within tissue. In these experiments, mice were injected with the light-sensitive immune cells and the nanoparticles. Then, a near-infrared laser beam that can transmit into the tissues was pointed at the mice. This caused calcium channels to open in the engineered cells deep in the mice. Finally, further experiments were used to show that this light-based stimulation could boost an immune response to aid the killing of cancer cells. Other scientists will likely use the technique to help them study immune, heart, and other types of cells that use calcium to communicate. DOI:http://dx.doi.org/10.7554/eLife.10024.002
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Affiliation(s)
- Lian He
- Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, United States
| | - Yuanwei Zhang
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, United States
| | - Guolin Ma
- Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, United States
| | - Peng Tan
- Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, United States
| | - Zhanjun Li
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, United States
| | - Shengbing Zang
- Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, United States
| | - Xiang Wu
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, United States
| | - Ji Jing
- Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, United States
| | - Shaohai Fang
- Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, United States
| | - Lijuan Zhou
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Youjun Wang
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Yun Huang
- Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, United States
| | - Patrick G Hogan
- Division of Signaling and Gene Expression, La Jolla Institute for Allergy and Immunology, La Jolla, United States
| | - Gang Han
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, United States
| | - Yubin Zhou
- Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, United States.,Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Temple, United States
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27
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Abstract
Ca(2+) release-activated Ca(2+) (CRAC) channels mediate a specific form of Ca(2+) influx called store-operated Ca(2+) entry (SOCE) that contributes to the function of many cell types. CRAC channels are composed of ORAI1 proteins located in the plasma membrane, which form its ion-conducting pore. ORAI1 channels are activated by stromal interaction molecule (STIM) 1 and STIM2 located in the endoplasmic reticulum. Loss- and gain-of-function gene mutations in ORAI1 and STIM1 in human patients cause distinct disease syndromes. CRAC channelopathy is caused by loss-of-function mutations in ORAI1 and STIM1 that abolish CRAC channel function and SOCE; it is characterized by severe combined immunodeficiency (SCID)-like disease, autoimmunity, muscular hypotonia, and ectodermal dysplasia, with defects in sweat gland function and dental enamel formation. The latter defect emphasizes an important role of CRAC channels in tooth development. By contrast, autosomal dominant gain-of-function mutations in ORAI1 and STIM1 result in constitutive CRAC channel activation, SOCE, and increased intracellular Ca(2+) levels that are associated with an overlapping spectrum of diseases, including nonsyndromic tubular aggregate myopathy (TAM) and York platelet and Stormorken syndromes. The latter two syndromes are defined, besides myopathy, by thrombocytopenia, thrombopathy, and bleeding diathesis. The fact that myopathy results from both loss- and gain-of-function mutations in ORAI1 and STIM1 highlights the importance of CRAC channels for Ca(2+) homeostasis in skeletal muscle function. The cellular dysfunction and clinical disease spectrum observed in mutant patients provide important information about the molecular regulation of ORAI1 and STIM1 proteins and the role of CRAC channels in human physiology.
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Affiliation(s)
- Rodrigo S Lacruz
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York, New York
| | - Stefan Feske
- Department of Pathology, New York University School of Medicine, New York, New York
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28
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Che H, Li G, Sun HY, Xiao GS, Wang Y, Li GR. Roles of store-operated Ca2+ channels in regulating cell cycling and migration of human cardiac c-kit+ progenitor cells. Am J Physiol Heart Circ Physiol 2015; 309:H1772-81. [PMID: 26453325 DOI: 10.1152/ajpheart.00260.2015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 09/14/2015] [Indexed: 11/22/2022]
Abstract
Cardiac c-kit(+) progenitor cells are important for maintaining cardiac homeostasis and can potentially contribute to myocardial repair. However, cellular physiology of human cardiac c-kit(+) progenitor cells is not well understood. The present study investigates the functional store-operated Ca(2+) entry (SOCE) channels and the potential role in regulating cell cycling and migration using confocal microscopy, RT-PCR, Western blot, coimmunoprecipitation, cell proliferation, and migration assays. We found that SOCE channels mediated Ca(2+) influx, and TRPC1, STIM1, and Orai1 were involved in the formation of SOCE channels in human cardiac c-kit(+) progenitor cells. Silencing TRPC1, STIM1, or Orai1 with the corresponding siRNA significantly reduced the Ca(2+) signaling through SOCE channels, decreased cell proliferation and migration, and reduced expression of cyclin D1, cyclin E, and/or p-Akt. Our results demonstrate the novel information that Ca(2+) signaling through SOCE channels regulates cell cycling and migration via activating cyclin D1, cyclin E, and/or p-Akt in human cardiac c-kit(+) cells.
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Affiliation(s)
- Hui Che
- Department of Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong, China; and
| | - Gang Li
- Department of Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong, China; and Xiamen Cardiovascular Hospital, Medical College of Xiamen University, Xiamen, Fujian, China
| | - Hai-Ying Sun
- Department of Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong, China; and
| | - Guo-Sheng Xiao
- Xiamen Cardiovascular Hospital, Medical College of Xiamen University, Xiamen, Fujian, China
| | - Yan Wang
- Xiamen Cardiovascular Hospital, Medical College of Xiamen University, Xiamen, Fujian, China
| | - Gui-Rong Li
- Department of Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong, China; and Xiamen Cardiovascular Hospital, Medical College of Xiamen University, Xiamen, Fujian, China
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29
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Lin H, Zheng C, Li J, Yang C, Hu L. Ca2+ -activated K+ channel-3.1 blocker TRAM-34 alleviates murine allergic rhinitis. Int Immunopharmacol 2015; 23:642-8. [PMID: 25466273 DOI: 10.1016/j.intimp.2014.10.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 09/21/2014] [Accepted: 10/17/2014] [Indexed: 01/08/2023]
Abstract
The precise pathogenesis of allergic rhinitis (AR) remains unclear and AR is less easily cured. Recent evidence has suggested that calcium-activated K+ channel-3.1(KCa3.1) is implicated in the immune response of allergic and inflammatory diseases and TRAM-34 is a selective KCa3.1 blocker. However, little is known about its role in AR. We aimed to investigate the effect of TRAM-34 in a mouse model of AR induced by ovalbumin (OVA). The BALB/c mice were divided into six groups: untreated AR group, 200 μg TRAM-34 treated AR group, 400 μg TRAM-34 treated AR group, 200 μg TRAM-34 treated normal group, 400 μg TRAM-34 treated normal group and untreated normal control group. Histopathological characteristics were assessed by HE staining. KCa3.1 protein expression was investigated by immunohistochemistry and western blotting method, and mRNA expression of KCa3.1, stromal interaction molecule1 (STIM1) and Orai1 in nasal tissues were assessed by real-time PCR. Furthermore, concentrations of OVA-specific IgE, ECP, IL-4, IL-5, IL-17 and IL-1β in nasal lavage fluid (NLF) were analyzed by enzyme-linked immunosorbent assay (ELISA). Results showed that TRAM-34 administration into the nostril attenuated sneezing, nasal rubbing, epithelial cell proliferation, eosinophil infiltration and inhibited nasal mucosa KCa3.1, STIM1 and Orai1 expression in TRAM-34 treated mice compared with untreated AR mice and suppressed inflammatory cytokines in the NLF of TRAM-34 treated groups compared with untreated AR mice. In conclusion, TRAM-34 could effectively alleviate murine allergic rhinitis by suppressing KCa3.1 and leads to reduction of K+ efflux and Ca2 + influx, leading to inflammation reduction and allergic responses attenuation.
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30
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Vaeth M, Zee I, Concepcion AR, Maus M, Shaw P, Portal-Celhay C, Zahra A, Kozhaya L, Weidinger C, Philips J, Unutmaz D, Feske S. Ca2+ Signaling but Not Store-Operated Ca2+ Entry Is Required for the Function of Macrophages and Dendritic Cells. THE JOURNAL OF IMMUNOLOGY 2015; 195:1202-17. [PMID: 26109647 DOI: 10.4049/jimmunol.1403013] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 05/26/2015] [Indexed: 01/12/2023]
Abstract
Store-operated Ca(2+) entry (SOCE) through Ca(2+) release-activated Ca(2+) (CRAC) channels is essential for immunity to infection. CRAC channels are formed by ORAI1 proteins in the plasma membrane and activated by stromal interaction molecule (STIM)1 and STIM2 in the endoplasmic reticulum. Mutations in ORAI1 and STIM1 genes that abolish SOCE cause severe immunodeficiency with recurrent infections due to impaired T cell function. SOCE has also been observed in cells of the innate immune system such as macrophages and dendritic cells (DCs) and may provide Ca(2+) signals required for their function. The specific role of SOCE in macrophage and DC function, as well as its contribution to innate immunity, however, is not well defined. We found that nonselective inhibition of Ca(2+) signaling strongly impairs many effector functions of bone marrow-derived macrophages and bone marrow-derived DCs, including phagocytosis, inflammasome activation, and priming of T cells. Surprisingly, however, macrophages and DCs from mice with conditional deletion of Stim1 and Stim2 genes, and therefore complete inhibition of SOCE, showed no major functional defects. Their differentiation, FcR-dependent and -independent phagocytosis, phagolysosome fusion, cytokine production, NLRP3 inflammasome activation, and their ability to present Ags to activate T cells were preserved. Our findings demonstrate that STIM1, STIM2, and SOCE are dispensable for many critical effector functions of macrophages and DCs, which has important implications for CRAC channel inhibition as a therapeutic strategy to suppress pathogenic T cells while not interfering with myeloid cell functions required for innate immunity.
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Affiliation(s)
- Martin Vaeth
- Department of Pathology, New York University School of Medicine, New York, NY 10016; and
| | - Isabelle Zee
- Department of Pathology, New York University School of Medicine, New York, NY 10016; and
| | - Axel R Concepcion
- Department of Pathology, New York University School of Medicine, New York, NY 10016; and
| | - Mate Maus
- Department of Pathology, New York University School of Medicine, New York, NY 10016; and
| | - Patrick Shaw
- Department of Pathology, New York University School of Medicine, New York, NY 10016; and
| | | | - Aleena Zahra
- Department of Medicine, New York University School of Medicine, New York, NY 10016
| | - Lina Kozhaya
- Department of Pathology, New York University School of Medicine, New York, NY 10016; and Department of Medicine, New York University School of Medicine, New York, NY 10016
| | - Carl Weidinger
- Department of Pathology, New York University School of Medicine, New York, NY 10016; and
| | - Jennifer Philips
- Department of Pathology, New York University School of Medicine, New York, NY 10016; and
| | - Derya Unutmaz
- Department of Pathology, New York University School of Medicine, New York, NY 10016; and Department of Medicine, New York University School of Medicine, New York, NY 10016
| | - Stefan Feske
- Department of Pathology, New York University School of Medicine, New York, NY 10016; and
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31
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Abstract
Ion channels and transporters mediate the transport of charged ions across hydrophobic lipid membranes. In immune cells, divalent cations such as calcium, magnesium, and zinc have important roles as second messengers to regulate intracellular signaling pathways. By contrast, monovalent cations such as sodium and potassium mainly regulate the membrane potential, which indirectly controls the influx of calcium and immune cell signaling. Studies investigating human patients with mutations in ion channels and transporters, analysis of gene-targeted mice, or pharmacological experiments with ion channel inhibitors have revealed important roles of ionic signals in lymphocyte development and in innate and adaptive immune responses. We here review the mechanisms underlying the function of ion channels and transporters in lymphocytes and innate immune cells and discuss their roles in lymphocyte development, adaptive and innate immune responses, and autoimmunity, as well as recent efforts to develop pharmacological inhibitors of ion channels for immunomodulatory therapy.
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Affiliation(s)
- Stefan Feske
- Department of Pathology, New York University School of Medicine, New York, NY 10016
| | - Heike Wulff
- Department of Pharmacology, School of Medicine, University of California, Davis, California 95616
| | - Edward Y. Skolnik
- Division of Nephrology, New York University School of Medicine, New York, NY 10016
- Department of Molecular Pathogenesis, New York University School of Medicine, New York, NY 10016
- Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY 10016
- The Helen L. and Martin S. Kimmel Center for Biology and Medicine at the Skirball Institute for Biomolecular Medicine, New York University School of Medicine, New York, NY 10016
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32
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Schmid E, Yan J, Nurbaeva MK, Russo A, Yang W, Faggio C, Shumilina E, Lang F. Decreased store operated Ca2+ entry in dendritic cells isolated from mice expressing PKB/SGK-resistant GSK3. PLoS One 2014; 9:e88637. [PMID: 24523925 PMCID: PMC3921210 DOI: 10.1371/journal.pone.0088637] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 01/09/2014] [Indexed: 12/31/2022] Open
Abstract
Dendritic cells (DCs), key players of immunity, are regulated by glycogen synthase kinase GSK3. GSK3 activity is suppressed by PKB/Akt and SGK isoforms, which are in turn stimulated by the PI3K pathway. Exposure to bacterial lipopolysaccharides increases cytosolic Ca2+-concentration ([Ca2+]i), an effect augmented in DCs isolated from mutant mice expressing PKB/SGK-resistant GSK3α,β (gsk3KI). Factors affecting [Ca2+]i include Ca2+-release from intracellular stores (CRIS), store-operated Ca2+-entry (SOCE) through STIM1/STIM2-regulated Orai1, K+-dependent Na+/Ca2+-exchangers (NCKX), K+-independent Na+/Ca2+-exchangers (NCX) and calbindin-D28k. The present study explored whether PKB/SGK-dependent GSK3α, β-activity impacts on CRIS, SOCE, NCKX, NCX or calbindin. DCs were isolated from gsk3KI mice and respective wild-type mice (gsk3WT), [Ca2+]i estimated from Fura2 fluorescence, Orai1, STIM1, STIM2 as well as calbindin-D28k protein abundance determined by Western blotting and mRNA levels quantified by real time PCR. As a result, thapsigargin-induced CRIS and SOCE were significantly blunted by GSK3-inhibitors SB216763 (1–10 µM, 30 min) or GSK-XIII (10 µM, 30 min) but were significantly lower in gsk3WT than in gsk3KIDCs. Orai1, STIM1 and STIM2 protein abundance was significantly lower and calbindin-D28k abundance significantly higher in gsk3KI than in gsk3WTDCs. Activity of NCKX and NCX was significantly higher in gsk3KI than in gsk3WTDCs and was significantly increased by SB216763 (1 µM, 30 min) or GSK-XIII (10 µM, 30 min). Treatment of gsk3WT DCs with SB216763 (1 µM, 4–24 h) or GSK-XIII (10 µM, 4–24 h) did not significantly modify the protein abundance of Orai1, STIM1 and STIM2. The present observations point to a dual role of GSK3 in the regulation of Ca2+ in DCs. Acute inhibition of GSK3 blunted the increase of [Ca2+]i following CRIS and SOCE and stimulated NCKX/NCX activity. However, expression of PKB/SGK-resistant GSK3α, β downregulated the increase of [Ca2+]i following CRIS and SOCE, an effect at least partially due to downregulation of Orai1, STIM1 and STIM2 expression as well as upregulation of Na+/Ca2+-exchanger activity and calbindin D28k expression.
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Affiliation(s)
- Evi Schmid
- Department of Physiology, University of Tübingen, Tübingen, Germany
| | - Jing Yan
- Department of Physiology, University of Tübingen, Tübingen, Germany
| | | | - Antonella Russo
- Department of Physiology, University of Tübingen, Tübingen, Germany
| | - Wenting Yang
- Department of Physiology, University of Tübingen, Tübingen, Germany
| | - Caterina Faggio
- Department of Biological and Environmental Sciences, University of Messina, S.Agata-Messina, Italy
| | | | - Florian Lang
- Department of Physiology, University of Tübingen, Tübingen, Germany
- * E-mail:
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33
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Abstract
Immunodeficiencies with nonfunctional T cells comprise a heterogeneous group of conditions characterized by altered function of T lymphocytes in spite of largely preserved T cell development. Some of these forms are due to hypomorphic mutations in genes causing severe combined immunodeficiency. More recently, advances in human genome sequencing have facilitated the identification of novel genetic defects that do not affect T cell development, but alter T cell function and homeostasis. Along with increased susceptibility to infections, these conditions are characterized by autoimmunity and higher risk of malignancies. The study of these diseases, and of corresponding animal models, has provided fundamental insights on the mechanisms that govern immune homeostasis.
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34
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Saul S, Stanisz H, Backes CS, Schwarz EC, Hoth M. How ORAI and TRP channels interfere with each other: interaction models and examples from the immune system and the skin. Eur J Pharmacol 2013; 739:49-59. [PMID: 24291108 DOI: 10.1016/j.ejphar.2013.10.071] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 10/08/2013] [Accepted: 10/17/2013] [Indexed: 11/16/2022]
Abstract
Four types of Ca(2+) selective ion channels are known, ten voltage gated Ca(2+) (CaV) channels, four CatSper channels, three store operated CRAC channels (ORAI channels) and at least two members of the TRPV subfamily (TRPV5, TRPV6). Some of the other TRP channels also show some Ca(2+) selectivity like certain splice variants of TRPM3. In addition to Ca(2+) selective channels, various cation channels play an important role for Ca(2+) entry and furthermore, they may also regulate Ca(2+) entry through other channels by modulating the membrane potential or other means as outlined in this review. Of the different types of cation channels, TRP channels form one of the most prominent families of non-selective cation channels with functional relevance in electrically non-excitable and electrically excitable cell types. Among these, the seven channels of the TRPC subfamily are rather non-selective with very modest Ca(2+) selectivity, whereas in the other subfamilies, cation selectivity ranges from monovalent selectivity (i.e. TRPM4, TRPM5) to divalent selectivity (i.e. TRPM6, TRPM7) or Ca(2+) selectivity (i.e. TRPV5, TRPV6). Rather than discussing the heavily reviewed individual functions of ORAI or TRP channels, we summarize data and present models how TRP and ORAI may functionally interact to guide cellular functions. We focus on T lymphocytes representing a more ORAI-dominated tissue and skin as model system in which both ORAI and TRP channel have been reported to control relevant functions. We present several interaction models how ORAI and TRP may interfere with each other's function.
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Affiliation(s)
- Stephanie Saul
- Department of Biophysics, School of Medicine, Saarland University, Homburg, Germany
| | - Hedwig Stanisz
- Department of Dermatology, School of Medicine, Saarland University, Homburg, Germany
| | - Christian S Backes
- Department of Biophysics, School of Medicine, Saarland University, Homburg, Germany
| | - Eva C Schwarz
- Department of Biophysics, School of Medicine, Saarland University, Homburg, Germany
| | - Markus Hoth
- Department of Biophysics, School of Medicine, Saarland University, Homburg, Germany.
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