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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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Niu M, Zhang X, Wu Z, Li B, Bao J, Dai J, Yang Z, Zeng Y, Li L, Pandol S, Sutton R, Wen L. Neutrophil-specific ORAI1 Calcium Channel Inhibition Reduces Pancreatitis-associated Acute Lung Injury. FUNCTION 2023; 5:zqad061. [PMID: 38020066 PMCID: PMC10666672 DOI: 10.1093/function/zqad061] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
Acute pancreatitis is initiated within pancreatic exocrine cells and sustained by dysregulated systemic inflammatory responses mediated by neutrophils. Store-operated Ca2+ entry (SOCE) through ORAI1 channels in pancreatic acinar cells triggers acute pancreatitis, and ORAI1 inhibitors ameliorate experimental acute pancreatitis, but the role of ORAI1 in pancreatitis-associated acute lung injury has not been determined. Here, we showed mice with pancreas-specific deletion of Orai1 (Orai1ΔPdx1, ∼70% reduction in the expression of Orai1) are protected against pancreatic tissue damage and immune cell infiltration, but not pancreatitis-associated acute lung injury, suggesting the involvement of unknown cells that may cause such injury through SOCE via ORAI1. Genetic (Orai1ΔMRP8) or pharmacological inhibition of ORAI1 in murine and human neutrophils decreased Ca2+ influx and impaired chemotaxis, reactive oxygen species production, and neutrophil extracellular trap formation. Unlike pancreas-specific Orai1 deletion, mice with neutrophil-specific deletion of Orai1 (Orai1ΔMRP8) were protected against pancreatitis- and sepsis-associated lung cytokine release and injury, but not pancreatic injury in experimental acute pancreatitis. These results define critical differences between contributions from different cell types to either pancreatic or systemic organ injury in acute pancreatitis. Our findings suggest that any therapy for acute pancreatitis that targets multiple rather than single cell types is more likely to be effective.
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Affiliation(s)
- Mengya Niu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
- Department of Gastroenterology and Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201600, China
| | - Xiuli Zhang
- Center for Biomarker Discovery and Validation, National Infrastructures for Translational Medicine (PUMCH), Institute of Clinical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - Zengkai Wu
- Department of Gastroenterology and Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201600, China
| | - Bin Li
- Department of Gastroenterology and Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201600, China
| | - Jingpiao Bao
- Department of Gastroenterology and Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201600, China
| | - Juanjuan Dai
- Department of Gastroenterology and Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201600, China
| | - Zihan Yang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - Yue Zeng
- Department of Gastroenterology and Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201600, China
| | - Liang Li
- Department of Gastroenterology and Shanghai Key Laboratory of Pancreatic Disease, Institute of Pancreatic Disease, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201600, China
| | - Stephen Pandol
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Robert Sutton
- Liverpool Pancreatitis Research Group, Liverpool University Hospitals NHS Foundation Trust and Institute of Translational Medicine, University of Liverpool, Liverpool L69 3BX, UK
| | - Li Wen
- Center for Biomarker Discovery and Validation, National Infrastructures for Translational Medicine (PUMCH), Institute of Clinical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
- State Key Laboratory of Complex, Severe, and Rare Diseases, Institute of Clinical Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
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Johnstone KF, Herzberg MC. Antimicrobial peptides: Defending the mucosal epithelial barrier. FRONTIERS IN ORAL HEALTH 2022; 3:958480. [PMID: 35979535 PMCID: PMC9376388 DOI: 10.3389/froh.2022.958480] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
The recent epidemic caused by aerosolized SARS-CoV-2 virus illustrates the importance and vulnerability of the mucosal epithelial barrier against infection. Antimicrobial proteins and peptides (AMPs) are key to the epithelial barrier, providing immunity against microbes. In primitive life forms, AMPs protect the integument and the gut against pathogenic microbes. AMPs have also evolved in humans and other mammals to enhance newer, complex innate and adaptive immunity to favor the persistence of commensals over pathogenic microbes. The canonical AMPs are helictical peptides that form lethal pores in microbial membranes. In higher life forms, this type of AMP is exemplified by the defensin family of AMPs. In epithelial tissues, defensins, and calprotectin (complex of S100A8 and S100A9) have evolved to work cooperatively. The mechanisms of action differ. Unlike defensins, calprotectin sequesters essential trace metals from microbes, which inhibits growth. This review focuses on defensins and calprotectin as AMPs that appear to work cooperatively to fortify the epithelial barrier against infection. The antimicrobial spectrum is broad with overlap between the two AMPs. In mice, experimental models highlight the contribution of both AMPs to candidiasis as a fungal infection and periodontitis resulting from bacterial dysbiosis. These AMPs appear to contribute to innate immunity in humans, protecting the commensal microflora and restricting the emergence of pathobionts and pathogens. A striking example in human innate immunity is that elevated serum calprotectin protects against neonatal sepsis. Calprotectin is also remarkable because of functional differences when localized in epithelial and neutrophil cytoplasm or released into the extracellular environment. In the cytoplasm, calprotectin appears to protect against invasive pathogens. Extracellularly, calprotectin can engage pathogen-recognition receptors to activate innate immune and proinflammatory mechanisms. In inflamed epithelial and other tissue spaces, calprotectin, DNA, and histones are released from degranulated neutrophils to form insoluble antimicrobial barriers termed neutrophil extracellular traps. Hence, calprotectin and other AMPs use several strategies to provide microbial control and stimulate innate immunity.
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Affiliation(s)
| | - Mark C. Herzberg
- Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, United States
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Rochette L, Dogon G, Rigal E, Zeller M, Cottin Y, Vergely C. Involvement of Oxidative Stress in Protective Cardiac Functions of Calprotectin. Cells 2022; 11:cells11071226. [PMID: 35406797 PMCID: PMC8997643 DOI: 10.3390/cells11071226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/24/2022] [Accepted: 04/01/2022] [Indexed: 02/01/2023] Open
Abstract
Calprotectin (CLP) belonging to the S-100 protein family is a heterodimeric complex (S100A8/S100A9) formed by two binding proteins. Upon cell activation, CLP stored in neutrophils is released extracellularly in response to inflammatory stimuli and acts as damage-associated molecular patterns (DAMPs). S100A8 and S100A9 possess both anti-inflammatory and anti-bacterial properties. The complex is a ligand of the toll-like receptor 4 (TLR4) and receptor for advanced glycation end (RAGE). At sites of infection and inflammation, CLP is a target for oxidation due to its co-localization with neutrophil-derived oxidants. In the heart, oxidative stress (OS) responses and S100 proteins are closely related and intimately linked through pathophysiological processes. Our review summarizes the roles of S100A8, S100A9 and CLP in the inflammation in relationship with vascular OS, and we examine the importance of CLP for the mechanisms driving in the protection of myocardium. Recent evidence interpreting CLP as a critical modulator during the inflammatory response has identified this alarmin as an interesting drug target.
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Affiliation(s)
- Luc Rochette
- Equipe d’Accueil (EA 7460): Physiopathologie et Epidémiologie Cérébro-Cardiovasculaires (PEC2), Faculté des Sciences de Santé, Université de Bourgogne—Franche Comté, 7 Bd Jeanne d’Arc, 21000 Dijon, France; (G.D.); (E.R.); (M.Z.); (C.V.)
- Correspondence:
| | - Geoffrey Dogon
- Equipe d’Accueil (EA 7460): Physiopathologie et Epidémiologie Cérébro-Cardiovasculaires (PEC2), Faculté des Sciences de Santé, Université de Bourgogne—Franche Comté, 7 Bd Jeanne d’Arc, 21000 Dijon, France; (G.D.); (E.R.); (M.Z.); (C.V.)
| | - Eve Rigal
- Equipe d’Accueil (EA 7460): Physiopathologie et Epidémiologie Cérébro-Cardiovasculaires (PEC2), Faculté des Sciences de Santé, Université de Bourgogne—Franche Comté, 7 Bd Jeanne d’Arc, 21000 Dijon, France; (G.D.); (E.R.); (M.Z.); (C.V.)
| | - Marianne Zeller
- Equipe d’Accueil (EA 7460): Physiopathologie et Epidémiologie Cérébro-Cardiovasculaires (PEC2), Faculté des Sciences de Santé, Université de Bourgogne—Franche Comté, 7 Bd Jeanne d’Arc, 21000 Dijon, France; (G.D.); (E.R.); (M.Z.); (C.V.)
| | - Yves Cottin
- Service de Cardiologie, CHU-Dijon, 21000 Dijon, France;
| | - Catherine Vergely
- Equipe d’Accueil (EA 7460): Physiopathologie et Epidémiologie Cérébro-Cardiovasculaires (PEC2), Faculté des Sciences de Santé, Université de Bourgogne—Franche Comté, 7 Bd Jeanne d’Arc, 21000 Dijon, France; (G.D.); (E.R.); (M.Z.); (C.V.)
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Kim HD, Karna S, Shin Y, Vu H, Cho HJ, Kim S. S100A8 and S100A9 in saliva, blood and gingival crevicular fluid for screening established periodontitis: a cross-sectional study. BMC Oral Health 2021; 21:388. [PMID: 34372836 PMCID: PMC8351418 DOI: 10.1186/s12903-021-01749-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 07/19/2021] [Indexed: 12/31/2022] Open
Abstract
Background Periodontitis is one of major oral diseases, which has no consensus on early screening tool. This study aimed to compare the association and screening ability of S100A8 and S100A9 in saliva, blood and gingival crevicular fluid (GCF) for periodontitis status. Methods We recruited 149 community Korean adults, 50 no or initial periodontitis (NIPERIO) and 99 established periodontitis (PERIO). Using clinical attachment loss and a panoramic radiograph, stage II–IV of new classification of periodontitis proposed at 2018 was considered cases as PERIO. Enzyme linked immunosorbent assay kit was used to quantify S100A8 and S100A9. T-test, analysis of covariance, Mann–Whitney test and correlation analysis were applied to compare the relationship of S100A8 and S100A9 in saliva, blood, and GCF for periodontitis. Receiver operating characteristic curve was applied for screening ability. Results Among S100A8 and S100A9 in saliva, blood and GCF, S100A8 in saliva was significantly higher in PERIO than in NIPERIO (p < 0.05). However, S100A8 and S100A9 in GCF were higher in NIPERIO (p < 0.05). The screening ability of salivary S100A8 was 75% for PERIO, while that of GCF S100A8 was 74% for NIPERIO. Salivary S100A8 was positively correlated to blood S100A8 (p < 0.05). Conclusion Salivary S100A8 could be a potential diagnostic marker for established periodontitis and be useful for screening established periodontitis. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-021-01749-z.
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Affiliation(s)
- Hyun-Duck Kim
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea. .,Dental Research Institute, Seoul National University, Seoul, Korea.
| | - Sandeep Karna
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - YooJin Shin
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Huong Vu
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Hyun-Jae Cho
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea.,Dental Research Institute, Seoul National University, Seoul, Korea
| | - Sungtae Kim
- Dental Research Institute, Seoul National University, Seoul, Korea.,Department of Periodontology, Seoul National University Dental Hospital, Seoul, Korea
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Neutrophils in Tumorigenesis: Missing Targets for Successful Next Generation Cancer Therapies? Int J Mol Sci 2021; 22:ijms22136744. [PMID: 34201758 PMCID: PMC8268516 DOI: 10.3390/ijms22136744] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/15/2021] [Accepted: 06/16/2021] [Indexed: 12/14/2022] Open
Abstract
Neutrophils—once considered as simple killers of pathogens and unexciting for cancer research—are now acknowledged for their role in the process of tumorigenesis. Neutrophils are recruited to the tumor microenvironment where they turn into tumor-associated neutrophils (TANs), and are able to initiate and promote tumor progression and metastasis. Conversely, anti-tumorigenic properties of neutrophils have been documented, highlighting the versatile nature and high pleiotropic plasticity of these polymorphonuclear leukocytes (PMN-L). Here, we dissect the ambivalent roles of TANs in cancer and focus on selected functional aspects that could be therapeutic targets. Indeed, the critical point of targeting TAN functions lies in the fact that an immunosuppressive state could be induced, resulting in unwanted side effects. A deeper knowledge of the mechanisms linked to diverse TAN functions in different cancer types is necessary to define appropriate therapeutic strategies that are able to induce and maintain an anti-tumor microenvironment.
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Alemán OR, Mora N, Rosales C. The Antibody Receptor Fc Gamma Receptor IIIb Induces Calcium Entry via Transient Receptor Potential Melastatin 2 in Human Neutrophils. Front Immunol 2021; 12:657393. [PMID: 34054821 PMCID: PMC8155622 DOI: 10.3389/fimmu.2021.657393] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/23/2021] [Indexed: 11/13/2022] Open
Abstract
Human neutrophils express two unique antibody receptors for IgG, the FcγRIIa and the FcγRIIIb. FcγRIIa contains an immunoreceptor tyrosine-based activation motif (ITAM) sequence within its cytoplasmic tail, which is important for initiating signaling. In contrast, FcγRIIIb is a glycosylphosphatidylinositol (GPI)-linked receptor with no cytoplasmic tail. Although, the initial signaling mechanism for FcγRIIIb remains unknown, it is clear that both receptors are capable of initiating distinct neutrophil cellular functions. For example, FcγRIIa is known to induce an increase in L-selectin expression and efficient phagocytosis, while FcγRIIIb does not promote these responses. In contrast, FcγRIIIb has been reported to induce actin polymerization, activation of β1 integrins, and formation of neutrophils extracellular traps (NET) much more efficiently than FcγRIIa. Another function where these receptors seem to act differently is the increase of cytoplasmic calcium concentration. It has been known for a long time that FcγRIIa induces production of inositol triphosphate (IP3) to release calcium from intracellular stores, while FcγRIIIb does not use this phospholipid. Thus, the mechanism for FcγRIIIb-mediated calcium rise remains unknown. Transient Receptor Potential Melastatin 2 (TRPM2) is a calcium permeable channel expressed in many cell types including vascular smooth cells, endothelial cells and leukocytes. TRPM2 can be activated by protein kinase C (PKC) and by oxidative stress. Because we previously found that FcγRIIIb stimulation leading to NET formation involves PKC activation and reactive oxygen species (ROS) production, in this report we explored whether TRPM2 is activated via FcγRIIIb and mediates calcium rise in human neutrophils. Calcium rise was monitored after Fcγ receptors were stimulated by specific monoclonal antibodies in Fura-2-loaded neutrophils. The bacterial peptide fMLF and FcγRIIa induced a calcium rise coming initially from internal pools. In contrast, FcγRIIIb caused a calcium rise by inducing calcium entry from the extracellular medium. In addition, in the presence of 2-aminoethoxydiphenyl borate (2-APB) or of clotrimazole, two inhibitors of TRPM2, FcγRIIIb-induced calcium rise was blocked. fMLF- or FcγRIIa-induced calcium rise was not affected by these inhibitors. These data suggest for the first time that FcγRIIIb aggregation activates TRPM2, to induce an increase in cytoplasmic calcium concentration through calcium internalization in human neutrophils.
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Affiliation(s)
- Omar Rafael Alemán
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Nancy Mora
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Carlos Rosales
- Departamento de Inmunología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
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Basok SS, Schepetkin IA, Khlebnikov AI, Lutsyuk AF, Kirichenko TI, Kirpotina LN, Pavlovsky VI, Leonov KA, Vishenkova DA, Quinn MT. Synthesis, Biological Evaluation, and Molecular Modeling of Aza-Crown Ethers. Molecules 2021; 26:molecules26082225. [PMID: 33921479 PMCID: PMC8069214 DOI: 10.3390/molecules26082225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/04/2021] [Accepted: 04/07/2021] [Indexed: 11/16/2022] Open
Abstract
Synthetic and natural ionophores have been developed to catalyze ion transport and have been shown to exhibit a variety of biological effects. We synthesized 24 aza- and diaza-crown ethers containing adamantyl, adamantylalkyl, aminomethylbenzoyl, and ε-aminocaproyl substituents and analyzed their biological effects in vitro. Ten of the compounds (8, 10–17, and 21) increased intracellular calcium ([Ca2+]i) in human neutrophils, with the most potent being compound 15 (N,N’-bis[2-(1-adamantyl)acetyl]-4,10-diaza-15-crown-5), suggesting that these compounds could alter normal neutrophil [Ca2+]i flux. Indeed, a number of these compounds (i.e., 8, 10–17, and 21) inhibited [Ca2+]i flux in human neutrophils activated by N-formyl peptide (fMLF). Some of these compounds also inhibited chemotactic peptide-induced [Ca2+]i flux in HL60 cells transfected with N-formyl peptide receptor 1 or 2 (FPR1 or FPR2). In addition, several of the active compounds inhibited neutrophil reactive oxygen species production induced by phorbol 12-myristate 13-acetate (PMA) and neutrophil chemotaxis toward fMLF, as both of these processes are highly dependent on regulated [Ca2+]i flux. Quantum chemical calculations were performed on five structure-related diaza-crown ethers and their complexes with Ca2+, Na+, and K+ to obtain a set of molecular electronic properties and to correlate these properties with biological activity. According to density-functional theory (DFT) modeling, Ca2+ ions were more effectively bound by these compounds versus Na+ and K+. The DFT-optimized structures of the ligand-Ca2+ complexes and quantitative structure-activity relationship (QSAR) analysis showed that the carbonyl oxygen atoms of the N,N’-diacylated diaza-crown ethers participated in cation binding and could play an important role in Ca2+ transfer. Thus, our modeling experiments provide a molecular basis to explain at least part of the ionophore mechanism of biological action of aza-crown ethers.
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Affiliation(s)
- Stepan S. Basok
- A.V. Bogatsky Physico-Chemical Institute of National Academy of Science of Ukraine, 65080 Odessa, Ukraine; (S.S.B.); (A.F.L.); (T.I.K.)
| | - Igor A. Schepetkin
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT 59717, USA; (I.A.S.); (L.N.K.)
| | - Andrei I. Khlebnikov
- Kizhner Research Center, National Research Tomsk Polytechnic University, Tomsk 634050, Russia; (A.I.K.); (V.I.P.); (D.A.V.)
| | - Anatoliy F. Lutsyuk
- A.V. Bogatsky Physico-Chemical Institute of National Academy of Science of Ukraine, 65080 Odessa, Ukraine; (S.S.B.); (A.F.L.); (T.I.K.)
| | - Tatiana I. Kirichenko
- A.V. Bogatsky Physico-Chemical Institute of National Academy of Science of Ukraine, 65080 Odessa, Ukraine; (S.S.B.); (A.F.L.); (T.I.K.)
| | - Liliya N. Kirpotina
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT 59717, USA; (I.A.S.); (L.N.K.)
| | - Victor I. Pavlovsky
- Kizhner Research Center, National Research Tomsk Polytechnic University, Tomsk 634050, Russia; (A.I.K.); (V.I.P.); (D.A.V.)
- Innovative Pharmacology Research, LLC, Tomsk 634021, Russia;
| | - Klim A. Leonov
- Innovative Pharmacology Research, LLC, Tomsk 634021, Russia;
| | - Darya A. Vishenkova
- Kizhner Research Center, National Research Tomsk Polytechnic University, Tomsk 634050, Russia; (A.I.K.); (V.I.P.); (D.A.V.)
| | - Mark T. Quinn
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT 59717, USA; (I.A.S.); (L.N.K.)
- Correspondence: ; Tel.: +406-994-4707; Fax: +406-994-4303
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Abstract
ABSTRACT Host cells recognize molecules that signal danger using pattern recognition receptors (PRRs). Toll-like receptors (TLRs) are the most studied class of PRRs and detect pathogen-associated molecular patterns and danger-associated molecular patterns. Cellular TLR activation and signal transduction can therefore contain, combat, and clear danger by enabling appropriate gene transcription. Here, we review the expression, regulation, and function of different TLRs, with an emphasis on TLR-4, and how TLR adaptor protein binding directs intracellular signaling resulting in activation or termination of an innate immune response. Finally, we highlight the recent progress of research on the involvement of S100 proteins as ligands for TLR-4 in inflammatory disease.
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10
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ORAI1 and ORAI2 modulate murine neutrophil calcium signaling, cellular activation, and host defense. Proc Natl Acad Sci U S A 2020; 117:24403-24414. [PMID: 32929002 DOI: 10.1073/pnas.2008032117] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Calcium signals are initiated in immune cells by the process of store-operated calcium entry (SOCE), where receptor activation triggers transient calcium release from the endoplasmic reticulum, followed by opening of plasma-membrane calcium-release activated calcium (CRAC) channels. ORAI1, ORAI2, and ORAI3 are known to comprise the CRAC channel; however, the contributions of individual isoforms to neutrophil function are not well understood. Here, we show that loss of ORAI1 partially decreases calcium influx, while loss of both ORAI1 and ORAI2 completely abolishes SOCE. In other immune-cell types, loss of ORAI2 enhances SOCE. In contrast, we find that ORAI2-deficient neutrophils display decreased calcium influx, which is correlated with measurable differences in the regulation of neutrophil membrane potential via KCa3.1. Decreased SOCE in ORAI1-, ORAI2-, and ORAI1/2-deficient neutrophils impairs multiple neutrophil functions, including phagocytosis, degranulation, leukotriene, and reactive oxygen species (ROS) production, rendering ORAI1/2-deficient mice highly susceptible to staphylococcal infection. This study demonstrates that ORAI1 and ORAI2 are the primary components of the neutrophil CRAC channel and identifies subpopulations of neutrophils where cell-membrane potential functions as a rheostat to modulate the SOCE response. These findings have implications for mechanisms that modulate neutrophil function during infection, acute and chronic inflammatory conditions, and cancer.
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Malik U, Zafar S, Younas N, Zerr I, Javed A. Unveiling the Physical and Functional Niches of FAM26F by Analyzing Its Subcellular Localization and Novel Interacting Partners. ACS OMEGA 2020; 5:22008-22020. [PMID: 32923759 PMCID: PMC7482079 DOI: 10.1021/acsomega.0c01249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
The knowledge of a protein's subcellular localization and interacting partners are crucial for elucidating its cellular function and associated regulatory networks. Although FAM26F (family with sequence similarity 26, member F) has been recognized as a vital player in various infections, stimulation studies, cancer, and immune pathogenesis, the precise location and function of FAM26F are not well understood. The current study is the first to focus on functional characterization of FAM26F by analyzing its subcellular localization and identifying its novel interacting partners using advanced proteome approaches. The immunofluorescence and confocal microscopy results revealed FAM26F to be largely localized within the Golgi apparatus of the cell. However, its minor presence in endoplasmic reticulum (ER) pointed toward the probable retrograde transfer of FAM26F from Golgi to ER during adverse conditions. Moreover, co-immunoprecipitation and MS/MS results demonstrated a total of 85 proteins, 44 of which significantly copurified with FAM26F. Interestingly, out of these 44 MS/MS identified proteins, almost 52% were involved in innate immunity, 38.6% in neutrophil degranulation, and remaining 10% were either involved in phosphorylation, degradation, or regulation of apoptosis. Further characterization through Ingenuity Pathway Analysis showed that majority of these proteins was involved in maintaining calcium homeostasis of cell. Consequently, the validation of selected proteins uncovered the key interaction of FAM26F with Thioredoxin, which essentially paved the way for depicting its mechanism of action under stress or disease conditions. It is proposed that activation and inhibition of the cellular immune response is essentially dependent on whether FAM26F or Thioredoxin considerably interact with CD30R.
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Affiliation(s)
- Uzma Malik
- Department
of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences
(ASAB), National University of Sciences
and Technology (NUST), H-12 Campus, 44000 Islamabad, Pakistan
- Department
of Neurology, University Medical Centre Göttingen (UMG), Georg-August-Universität Göttingen, 37075 Göttingen, Germany
| | - Saima Zafar
- Department
of Neurology, University Medical Centre Göttingen (UMG), Georg-August-Universität Göttingen, 37075 Göttingen, Germany
- Department
of Biomedical Engineering & Sciences, School of Mechanical &
Manufacturing Engineering (SMME), National
University of Sciences and Technology (NUST), H-12
Campus, 44000 Islamabad, Pakistan
| | - Neelam Younas
- Department
of Neurology, University Medical Centre Göttingen (UMG), Georg-August-Universität Göttingen, 37075 Göttingen, Germany
| | - Inga Zerr
- Department
of Neurology, University Medical Centre Göttingen (UMG), Georg-August-Universität Göttingen, 37075 Göttingen, Germany
| | - Aneela Javed
- Department
of Healthcare Biotechnology, Atta-ur-Rahman School of Applied Biosciences
(ASAB), National University of Sciences
and Technology (NUST), H-12 Campus, 44000 Islamabad, Pakistan
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12
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Park YJ, Yoo SA, Kim M, Kim WU. The Role of Calcium-Calcineurin-NFAT Signaling Pathway in Health and Autoimmune Diseases. Front Immunol 2020; 11:195. [PMID: 32210952 PMCID: PMC7075805 DOI: 10.3389/fimmu.2020.00195] [Citation(s) in RCA: 156] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 01/24/2020] [Indexed: 01/05/2023] Open
Abstract
Calcium (Ca2+) is an essential signaling molecule that controls a wide range of biological functions. In the immune system, calcium signals play a central role in a variety of cellular functions such as proliferation, differentiation, apoptosis, and numerous gene transcriptions. During an immune response, the engagement of T-cell and B-cell antigen receptors induces a decrease in the intracellular Ca2+ store and then activates store-operated Ca2+ entry (SOCE) to raise the intracellular Ca2+ concentration, which is mediated by the Ca2+ release-activated Ca2+ (CRAC) channels. Recently, identification of the two critical regulators of the CRAC channel, stromal interaction molecule (STIM) and Orai1, has broadened our understanding of the regulatory mechanisms of Ca2+ signaling in lymphocytes. Repetitive or prolonged increase in intracellular Ca2+ is required for the calcineurin-mediated dephosphorylation of the nuclear factor of an activated T cell (NFAT). Recent data indicate that Ca2+-calcineurin-NFAT1 to 4 pathways are dysregulated in autoimmune diseases. Therefore, calcineurin inhibitors, cyclosporine and tacrolimus, have been used for the treatment of such autoimmune diseases as systemic lupus erythematosus and rheumatoid arthritis. Here, we review the role of the Ca2+-calcineurin–NFAT signaling pathway in health and diseases, focusing on the STIM and Orai1, and discuss the deregulated calcium-mediated calcineurin-NFAT pathway in autoimmune diseases.
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Affiliation(s)
- Yune-Jung Park
- POSTEC-CATHOLIC Biomedical Engineering Institute, The Catholic University of Korea, Seoul, South Korea.,Division of Rheumatology, Department of Internal Medicine, St. Vincent's Hospital, The Catholic University of Korea, Suwon, South Korea
| | - Seung-Ah Yoo
- POSTEC-CATHOLIC Biomedical Engineering Institute, The Catholic University of Korea, Seoul, South Korea.,Department of Biomedicine & Health Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Mingyo Kim
- Division of Rheumatology, Department of Internal Medicine, Gyeonsang National University Hospital, Jinju, South Korea
| | - Wan-Uk Kim
- POSTEC-CATHOLIC Biomedical Engineering Institute, The Catholic University of Korea, Seoul, South Korea.,Department of Biomedicine & Health Science, College of Medicine, The Catholic University of Korea, Seoul, South Korea.,Division of Rheumatology, Department of Internal Medicine, The Catholic University of Korea, Seoul, South Korea
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13
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S100 proteins in atherosclerosis. Clin Chim Acta 2020; 502:293-304. [DOI: 10.1016/j.cca.2019.11.019] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/11/2019] [Accepted: 11/14/2019] [Indexed: 02/07/2023]
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14
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Molecular Mechanisms of Calcium Signaling During Phagocytosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1246:103-128. [PMID: 32399828 DOI: 10.1007/978-3-030-40406-2_7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Calcium (Ca2+) is a ubiquitous second messenger involved in the regulation of numerous cellular functions including vesicular trafficking, cytoskeletal rearrangements and gene transcription. Both global as well as localized Ca2+ signals occur during phagocytosis, although their functional impact on the phagocytic process has been debated. After nearly 40 years of research, a consensus may now be reached that although not strictly required, Ca2+ signals render phagocytic ingestion and phagosome maturation more efficient, and their manipulation make an attractive avenue for therapeutic interventions. In the last decade many efforts have been made to identify the channels and regulators involved in generating and shaping phagocytic Ca2+ signals. While molecules involved in store-operated calcium entry (SOCE) of the STIM and ORAI family have taken center stage, members of the canonical, melastatin, mucolipin and vanilloid transient receptor potential (TRP), as well as purinergic P2X receptor families are now recognized to play significant roles. In this chapter, we review the recent literature on research that has linked specific Ca2+-permeable channels and regulators to phagocytic function. We highlight the fact that lipid mediators are emerging as important regulators of channel gating and that phagosomal ionic homeostasis and Ca2+ release also play essential parts. We predict that improved methodologies for measuring these factors will be critical for future advances in dissecting the intricate biology of this fascinating immune process.
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15
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The NADPH Oxidase and the Phagosome. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1246:153-177. [DOI: 10.1007/978-3-030-40406-2_9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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16
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Abstract
The pathogenic potential of Listeria monocytogenes relies on the production of an arsenal of virulence determinants that have been extensively characterized, including surface and secreted proteins of the internalin family. We have previously shown that the Listeria secreted internalin InlC interacts with IκB kinase α to interfere with the host immune response (E. Gouin, M. Adib-Conquy, D. Balestrino, M.-A. Nahori, et al., Proc Natl Acad Sci USA, 107:17333–17338, 2010, https://doi.org/10.1073/pnas.1007765107). In the present work, we report that InlC is monoubiquitinated on K224 upon infection of cells and provide evidence that ubiquitinated InlC interacts with and stabilizes the alarmin S100A9, which is a critical regulator of the immune response and inflammatory processes. Additionally, we show that ubiquitination of InlC causes an increase in reactive oxygen species production by neutrophils in mice and restricts Listeria infection. These findings are the first to identify a posttranscriptional modification of an internalin contributing to host defense. Listeria monocytogenes is a pathogenic bacterium causing potentially fatal foodborne infections in humans and animals. While the mechanisms used by Listeria to manipulate its host have been thoroughly characterized, how the host controls bacterial virulence factors remains to be extensively deciphered. Here, we found that the secreted Listeria virulence protein InlC is monoubiquitinated by the host cell machinery on K224, restricting infection. We show that the ubiquitinated form of InlC interacts with the intracellular alarmin S100A9, resulting in its stabilization and in increased reactive oxygen species production by neutrophils in infected mice. Collectively, our results suggest that posttranslational modification of InlC exacerbates the host response upon Listeria infection.
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Hann J, Bueb JL, Tolle F, Bréchard S. Calcium signaling and regulation of neutrophil functions: Still a long way to go. J Leukoc Biol 2019; 107:285-297. [PMID: 31841231 DOI: 10.1002/jlb.3ru0719-241r] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/08/2019] [Accepted: 12/01/2019] [Indexed: 12/22/2022] Open
Abstract
Neutrophils are the most abundant leukocytes in blood and disruption in their functions often results in an increased risk of serious infections and inflammatory autoimmune diseases. Following recent discoveries in their influence over disease progression, a resurgence of interest for neutrophil biology has taken place. The multitude of signaling pathways activated by the engagement of numerous types of receptors, with which neutrophils are endowed, reflects the functional complexity of these cells. It is therefore not surprising that there remains a huge lack in the understanding of molecular mechanisms underlining neutrophil functions. Moreover, studies on neutrophils are undoubtedly limited by the difficulty to efficiently edit the cell's genome. Over the past 30 years, compelling evidence has clearly highlighted that Ca2+ -signaling is governing the key processes associated with neutrophil functions. The confirmation of the role of an elevation of intracellular Ca2+ concentration has come from studies on NADPH oxidase activation and phagocytosis. In this review, we give an overview and update of our current knowledge on the role of Ca2+ mobilization in the regulation of pro-inflammatory functions of neutrophils. In particular, we stress the importance of Ca2+ in the formation of NETs and cytokine secretion in the light of newest findings. This will allow us to embrace how much further we have to go to understand the complex dynamics of Ca2+ -dependent mechanisms in order to gain more insights into the role of neutrophils in the pathogenesis of inflammatory diseases. The potential for therapeutics to regulate the neutrophil functions, such as Ca2+ influx inhibitors to prevent autoimmune and chronic inflammatory diseases, has been discussed in the last part of the review.
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Affiliation(s)
- J Hann
- Life Sciences Research Unit, Immune Cells and Inflammatory Diseases Group, University of Luxembourg, Belvaux, Luxembourg
| | - J-L Bueb
- Life Sciences Research Unit, Immune Cells and Inflammatory Diseases Group, University of Luxembourg, Belvaux, Luxembourg
| | - F Tolle
- Life Sciences Research Unit, Immune Cells and Inflammatory Diseases Group, University of Luxembourg, Belvaux, Luxembourg
| | - S Bréchard
- Life Sciences Research Unit, Immune Cells and Inflammatory Diseases Group, University of Luxembourg, Belvaux, Luxembourg
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18
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Abstract
Metals are essential components in all forms of life required for the function of nearly half of all enzymes and are critically involved in virtually all fundamental biological processes. Especially, the transition metals iron (Fe), zinc (Zn), manganese (Mn), nickel (Ni), copper (Cu) and cobalt (Co) are crucial micronutrients known to play vital roles in metabolism as well due to their unique redox properties. Metals carry out three major functions within metalloproteins: to provide structural support, to serve as enzymatic cofactors, and to mediate electron transportation. Metal ions are also involved in the immune system from metal allergies to nutritional immunity. Within the past decade, much attention has been drawn to the roles of metal ions in the immune system, since increasing evidence has mounted to suggest that metals are critically implicated in regulating both the innate immune sensing of and the host defense against invading pathogens. The importance of ions in immunity is also evidenced by the identification of various immunodeficiencies in patients with mutations in ion channels and transporters. In addition, cancer immunotherapy has recently been conclusively demonstrated to be effective and important for future tumor treatment, although only a small percentage of cancer patients respond to immunotherapy because of inadequate immune activation. Importantly, metal ion-activated immunotherapy is becoming an effective and potential way in tumor therapy for better clinical application. Nevertheless, we are still in a primary stage of discovering the diverse immunological functions of ions and mechanistically understanding the roles of these ions in immune regulation. This review summarizes recent advances in the understanding of metal-controlled immunity. Particular emphasis is put on the mechanisms of innate immune stimulation and T cell activation by the essential metal ions like calcium (Ca2+), zinc (Zn2+), manganese (Mn2+), iron (Fe2+/Fe3+), and potassium (K+), followed by a few unessential metals, in order to draw a general diagram of metalloimmunology.
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Affiliation(s)
- Chenguang Wang
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, School of Life Sciences, Peking University, Beijing, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Rui Zhang
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, School of Life Sciences, Peking University, Beijing, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Xiaoming Wei
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, School of Life Sciences, Peking University, Beijing, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Mengze Lv
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, School of Life Sciences, Peking University, Beijing, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Zhengfan Jiang
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, School of Life Sciences, Peking University, Beijing, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China.
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Pan S, Hu Y, Hu M, Xu Y, Chen M, Du C, Cui J, Zheng P, Lai J, Zhang Y, Bai J, Jiang P, Zhu J, He Y, Wang J. S100A8 facilitates cholangiocarcinoma metastasis via upregulation of VEGF through TLR4/NF‑κB pathway activation. Int J Oncol 2019; 56:101-112. [PMID: 31746424 PMCID: PMC6910197 DOI: 10.3892/ijo.2019.4907] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 10/03/2019] [Indexed: 12/12/2022] Open
Abstract
A growing body of evidence indicates that S100 calcium-binding protein A8 (S100A8) is frequently overexpressed in malignant tumor tissues and regulates tumor progression; however, the role of S100A8 in cholangiocarcinoma (CCA) remains unclear. The present study demonstrated that the protein expression of S100A8 was significantly higher in pathological tissues compared with adjacent normal tissues from patients with CCA. In addition, S100A8 expression was significantly associated with differentiation, lymph node metastasis and poor prognosis in patients following surgical resection of CCA. Furthermore, both in vitro and in vivo experiments revealed that overexpression of S100A6 promoted, while S100A8 knockdown attenuated, the migration and metastasis of CCA cells. Of note, the present results indicated that S100A8 promoted the CCA tumor cell-induced migration of vascular endothelial cells. Finally, S100A8 was demonstrated to positively regulate the expression of vascular endothelial growth factor (VEGF) in CCA cells, which was mediated by activation of the Toll-like receptor 4 (TLR4)/NF-κB pathway. In conclusion, the present study demonstrated that S100A8 had an important role in facilitating CCA cell migration and metastasis via upregulation of VEGF expression by activating the TLR4/NF-κB pathway. These findings may provide a novel target for CCA treatment.
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Affiliation(s)
- Shuguang Pan
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Centre for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing 400038, P.R. China
| | - Ying Hu
- Oncology Department, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Mengjia Hu
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Centre for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing 400038, P.R. China
| | - Yang Xu
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Centre for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing 400038, P.R. China
| | - Mo Chen
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Centre for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing 400038, P.R. China
| | - Changhong Du
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Centre for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing 400038, P.R. China
| | - Jinchi Cui
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Ping Zheng
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Jiejuan Lai
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Yujun Zhang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Jie Bai
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Peng Jiang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Jin Zhu
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Yu He
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Junping Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Centre for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing 400038, P.R. China
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20
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Westman J, Grinstein S, Maxson ME. Revisiting the role of calcium in phagosome formation and maturation. J Leukoc Biol 2019; 106:837-851. [DOI: 10.1002/jlb.mr1118-444r] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/24/2019] [Accepted: 04/25/2019] [Indexed: 12/19/2022] Open
Affiliation(s)
- Johannes Westman
- Program in Cell BiologyHospital for Sick Children Toronto Ontario Canada
| | - Sergio Grinstein
- Program in Cell BiologyHospital for Sick Children Toronto Ontario Canada
- Department of BiochemistryUniversity of Toronto Toronto Ontario Canada
- Keenan Research Centre of the Li Ka Shing Knowledge InstituteSt. Michael's Hospital Toronto Ontario Canada
| | - Michelle E. Maxson
- Program in Cell BiologyHospital for Sick Children Toronto Ontario Canada
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21
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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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22
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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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23
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Store-operated calcium entry in thrombosis and thrombo-inflammation. Cell Calcium 2018; 77:39-48. [PMID: 30530092 DOI: 10.1016/j.ceca.2018.11.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/31/2018] [Accepted: 11/14/2018] [Indexed: 01/03/2023]
Abstract
Cytosolic free calcium (Ca2+) is a second messenger regulating a wide variety of functions in blood cells, including adhesion, activation, proliferation and migration. Store-operated Ca2+ entry (SOCE), triggered by depletion of Ca2+ from the endoplasmic reticulum, provides a main mechanism of regulated Ca2+ influx in blood cells. SOCE is mediated and regulated by isoforms of the ion channel proteins ORAI and TRP, and the transmembrane Ca2+ sensors stromal interaction molecules (STIMs), respectively. This report provides an overview of the (patho)physiological importance of SOCE in blood cells implicated in thrombosis and thrombo-inflammation, i.e. platelets and immune cells. We also discuss the physiological consequences of dysregulated SOCE in platelets and immune cells and the potential of SOCE inhibition as a therapeutic option to prevent or treat arterial thrombosis as well as thrombo-inflammatory disease states such as ischemic stroke.
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24
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Immler R, Simon SI, Sperandio M. Calcium signalling and related ion channels in neutrophil recruitment and function. Eur J Clin Invest 2018; 48 Suppl 2:e12964. [PMID: 29873837 PMCID: PMC6221920 DOI: 10.1111/eci.12964] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 06/04/2018] [Indexed: 12/15/2022]
Abstract
The recruitment of neutrophils to sites of inflammation, their battle against invading microorganisms through phagocytosis and the release of antimicrobial agents is a highly coordinated and tightly regulated process that involves the interplay of many different receptors, ion channels and signalling pathways. Changes in intracellular calcium levels, caused by cytosolic Ca2+ store depletion and the influx of extracellular Ca2+ via ion channels, play a critical role in synchronizing neutrophil activation and function. In this review, we provide an overview of how Ca2+ signalling is initiated in neutrophils and how changes in intracellular Ca2+ levels modulate neutrophil function.
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Affiliation(s)
- Roland Immler
- Walter Brendel Centre of Experimental Medicine, Biomedical Center, Klinikum der Universität, Ludwig-Maximilians-Universität München, Germany
| | - Scott I. Simon
- Department of Biomedical Engineering, Graduate Group in Immunology, University of California, Davis, CA, USA
| | - Markus Sperandio
- Walter Brendel Centre of Experimental Medicine, Biomedical Center, Klinikum der Universität, Ludwig-Maximilians-Universität München, Germany
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25
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Holzinger D, Foell D, Kessel C. The role of S100 proteins in the pathogenesis and monitoring of autoinflammatory diseases. Mol Cell Pediatr 2018; 5:7. [PMID: 30255357 PMCID: PMC6156694 DOI: 10.1186/s40348-018-0085-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 04/27/2018] [Indexed: 01/09/2023] Open
Abstract
S100A8/A9 and S100A12 are released from activated monocytes and granulocytes and act as proinflammatory endogenous toll-like receptor (TLR)4-ligands. S100 serum concentrations correlate with disease activity, both during local and systemic inflammatory processes. In some autoinflammatory diseases such as familial Mediterranean fever (FMF) or systemic juvenile idiopathic arthritis (SJIA), dysregulation of S100 release may be involved in the pathogenesis. Moreover, S100 serum levels are a valuable supportive tool in the diagnosis of SJIA in fever of unknown origin. Furthermore, S100 levels can be used to monitor disease activity to subclinical level, as their serum concentrations decrease with successful treatment.
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Affiliation(s)
- Dirk Holzinger
- Department of Pediatric Hematology-Oncology, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany.
| | - Dirk Foell
- Department of Pediatric Rheumatology and Immunology, University Children's Hospital Muenster, Domagkstr. 3, 48149, Muenster, Germany
| | - Christoph Kessel
- Department of Pediatric Rheumatology and Immunology, University Children's Hospital Muenster, Domagkstr. 3, 48149, Muenster, Germany
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26
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Zhou G, Yu L, Fang L, Yang W, Yu T, Miao Y, Chen M, Wu K, Chen F, Cong Y, Liu Z. CD177 + neutrophils as functionally activated neutrophils negatively regulate IBD. Gut 2018; 67:1052-1063. [PMID: 28468761 DOI: 10.1136/gutjnl-2016-313535] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/20/2017] [Accepted: 04/06/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND Neutrophils are accumulated in inflamed mucosa of IBD and play an important role in the pathogenesis. CD177 is expressed in neutrophils specifically and upregulated during inflammation. However, the role of CD177+ neutrophils in pathogenesis of IBD remains elusive. MATERIALS AND METHODS Expression of CD177 was analysed in peripheral blood and intestinal mucosa from patients with IBD using quantitative RT-PCR, flow cytometry and immunohistochemistry. CD177+ and CD177- neutrophils were isolated to determine gene differences by RNA sequencing. Colitis was established in CD177-/- and wild-type mice in response to dextran sulfate sodium (DSS) insults to determine the role of CD177+ neutrophils in IBD. RESULTS CD177+ neutrophils were markedly increased in peripheral blood and inflamed mucosa from patients with active IBD compared with healthy controls. RNA sequencing revealed that differential gene expression between CD177+ and CD177- neutrophils from patients with IBD was associated with response to bacterial defence, hydrogen peroxide and reactive oxygen species (ROS). CD177+ neutrophils produced lower levels of proinflammatory cytokines (ie, interferon-γ, interleukin (IL)-6, IL-17A), but higher levels of IL-22 and transforming growth factor-β, and exhibited increased bactericidal activities (ie, ROS, antimicrobial peptides, neutrophil extracellular trap) compared with CD177- subset. CD177-/- mice developed more severe colitis on DSS insults compared with wild-type mice. Moreover, CD177 deficiency led to compromised intestinal barrier and impaired antibacterial immunity through decreased production of IL-22 by CD177- neutrophils. CONCLUSIONS CD177+ neutrophils represent functionally activated population and play a protective role in IBD through increased bactericidal activity and IL-22 production. Targeting CD177+ neutrophils may be beneficial for treatment of IBD.
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Affiliation(s)
- Guangxi Zhou
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Lin Yu
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Leilei Fang
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Wenjing Yang
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Tianming Yu
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Yinglei Miao
- Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Minhu Chen
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Kaichun Wu
- Department of Gastroenterology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Feidi Chen
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Yingzi Cong
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Zhanju Liu
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
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27
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Kyrmizi I, Ferreira H, Carvalho A, Figueroa JAL, Zarmpas P, Cunha C, Akoumianaki T, Stylianou K, Deepe GS, Samonis G, Lacerda JF, Campos A, Kontoyiannis DP, Mihalopoulos N, Kwon-Chung KJ, El-Benna J, Valsecchi I, Beauvais A, Brakhage AA, Neves NM, Latge JP, Chamilos G. Calcium sequestration by fungal melanin inhibits calcium-calmodulin signalling to prevent LC3-associated phagocytosis. Nat Microbiol 2018; 3:791-803. [PMID: 29849062 DOI: 10.1038/s41564-018-0167-x] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 04/23/2018] [Indexed: 11/09/2022]
Abstract
LC3-associated phagocytosis (LAP) is a non-canonical autophagy pathway regulated by Rubicon, with an emerging role in immune homeostasis and antifungal host defence. Aspergillus cell wall melanin protects conidia (spores) from killing by phagocytes and promotes pathogenicity through blocking nicotinamide adenine dinucleotide phosphate (NADPH) oxidase-dependent activation of LAP. However, the signalling regulating LAP upstream of Rubicon and the mechanism of melanin-induced inhibition of this pathway remain incompletely understood. Herein, we identify a Ca2+ signalling pathway that depends on intracellular Ca2+ sources from endoplasmic reticulum, endoplasmic reticulum-phagosome communication, Ca2+ release from phagosome lumen and calmodulin (CaM) recruitment, as a master regulator of Rubicon, the phagocyte NADPH oxidase NOX2 and other molecular components of LAP. Furthermore, we provide genetic evidence for the physiological importance of Ca2+-CaM signalling in aspergillosis. Finally, we demonstrate that Ca2+ sequestration by Aspergillus melanin inside the phagosome abrogates activation of Ca2+-CaM signalling to inhibit LAP. These findings reveal the important role of Ca2+-CaM signalling in antifungal immunity and identify an immunological function of Ca2+ binding by melanin pigments with broad physiological implications beyond fungal disease pathogenesis.
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Affiliation(s)
- Irene Kyrmizi
- Department of Medicine, University of Crete, Heraklion, Crete, Greece.,Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, Heraklion, Crete, Greece
| | - Helena Ferreira
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Agostinho Carvalho
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, Braga, Portugal
| | - Julio Alberto Landero Figueroa
- Department of Chemistry, University of Cincinnati/Agilent Technologies Metallomics Center of the Americas, University of Cincinnati, Cincinnati, OH, USA
| | - Pavlos Zarmpas
- Department of Chemistry, University of Crete, Heraklion, Crete, Greece
| | - Cristina Cunha
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus de Gualtar, Braga, Portugal
| | - Tonia Akoumianaki
- Department of Medicine, University of Crete, Heraklion, Crete, Greece
| | - Kostas Stylianou
- Department of Medicine, University of Crete, Heraklion, Crete, Greece
| | - George S Deepe
- Division of Infectious Diseases, College of Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - George Samonis
- Department of Medicine, University of Crete, Heraklion, Crete, Greece
| | - João F Lacerda
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Lisbon, Portugal.,Serviço de Hematologia e Transplantação de Medula, Hospital de Santa Maria, Lisbon, Portugal
| | - António Campos
- Serviço de Transplantação de Medula Óssea (STMO), Instituto Português de Oncologia do Porto, Porto, Portugal
| | - Dimitrios P Kontoyiannis
- Department of Infectious Diseases, The University of Texas, MD Anderson Cancer Center, Austin, TX, USA
| | | | - Kyung J Kwon-Chung
- Molecular Microbiology Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Jamel El-Benna
- INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Laboratoire d'Excellence Inflamex, DHU FIRE, Faculté de Médecine, Site Xavier Bichat, Paris, France
| | | | - Anne Beauvais
- Unité des Aspergillus, Institut Pasteur, Paris, France
| | - Axel A Brakhage
- Department of Molecular and Applied Microbiology, Leibniz-Institute for Natural Product Research and Infection Biology (HKI) and Friedrich Schiller University, Jena, Germany
| | - Nuno M Neves
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | | | - Georgios Chamilos
- Department of Medicine, University of Crete, Heraklion, Crete, Greece. .,Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, Heraklion, Crete, Greece.
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28
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Zhou X, Li Z, Wang Z, Chen E, Wang J, Chen F, Jones O, Tan T, Chen S, Takeshima H, Bryant J, Ma J, Xu X. Syncytium calcium signaling and macrophage function in the heart. Cell Biosci 2018; 8:24. [PMID: 29599964 PMCID: PMC5870344 DOI: 10.1186/s13578-018-0222-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 03/19/2018] [Indexed: 12/20/2022] Open
Abstract
Macrophages are traditionally viewed as a key component of the immunity defense system. Recent studies have identified resident macrophages in multiple organs including the heart, in which the cells perform their crucial role on tissue repair after myocardial infarction (MI). The cardiac-specific macrophages interdigitate with cardiomyocytes particularly at the atrioventricular node region. The integrative communication between macrophage and cardiomyocytes can modulate the contractile function of the heart. Coordinated control of intracellular calcium signaling and intercellular electrical conduction via the syncytium network underlie the synchronized beating of the heart. In this review article, we introduce the concept the syncytium calcium signaling in the cardiomyocytes can modulate gene expression in the resident macrophages and their integration with the cardiomyocytes. The cardiac macrophages originate from bone marrow stem cells, migrate to local via vessel, and settle down as a naturalization process in heart. As the macrophages perform on regulating electrical conduction, and accomplish post MI non-scared completed regeneration or partial regeneration with fibrotic scar at different stage of postnatal development, we understand that multiple functions of cardiac macrophage should carry on with diverse linages. The naturalization process in heart of macrophages to the cardiomyocytes serves important roles to control of electrical signaling and calcium-dependent contractile function of the heart.
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Affiliation(s)
- Xin Zhou
- Laboratory of Cell Biology, Genetics and Developmental Biology, Shaanxi Normal University College of Life Sciences, Xi’an, 710062 People’s Republic of China
- Ohio State University College of Medicine, Columbus, OH 43210 USA
| | - Zhongguang Li
- Laboratory of Cell Biology, Genetics and Developmental Biology, Shaanxi Normal University College of Life Sciences, Xi’an, 710062 People’s Republic of China
| | - Zefan Wang
- Laboratory of Cell Biology, Genetics and Developmental Biology, Shaanxi Normal University College of Life Sciences, Xi’an, 710062 People’s Republic of China
| | - Eda Chen
- Virginia Commonwealth University College of Medicine, Richmond, VA 23284 USA
| | - Juan Wang
- Laboratory of Cell Biology, Genetics and Developmental Biology, Shaanxi Normal University College of Life Sciences, Xi’an, 710062 People’s Republic of China
| | | | - Odell Jones
- University of Pennsylvania ULAR, Philadelphia, PA 19144 USA
| | - Tao Tan
- Ohio State University College of Medicine, Columbus, OH 43210 USA
| | - Shawn Chen
- Chen Wellness Clinics, Wichita, KS 67219 USA
| | - Hiroshi Takeshima
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501 Japan
| | - Joseph Bryant
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21287 USA
| | - Jianjie Ma
- Ohio State University College of Medicine, Columbus, OH 43210 USA
| | - Xuehong Xu
- Laboratory of Cell Biology, Genetics and Developmental Biology, Shaanxi Normal University College of Life Sciences, Xi’an, 710062 People’s Republic of China
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29
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Demaurex N, Saul S. The role of STIM proteins in neutrophil functions. J Physiol 2018; 596:2699-2708. [PMID: 29441588 PMCID: PMC6046061 DOI: 10.1113/jp275639] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 01/15/2018] [Indexed: 01/07/2023] Open
Abstract
Stromal interaction molecule (STIM) proteins regulate store-operated Ca2+ entry (SOCE) in innate and adaptive immune cells and participate in the Ca2+ signals that control the functions of neutrophils, the first line of host defence against bacterial and fungal infections. Loss-of-function experiments in animal and cellular models indicate that both STIM1 and STIM2 regulate neutrophil functions, but the complexity of the SOCE machinery and the versatility of neutrophils complicate the evaluation of the results. This review aims to summarize the latest progress in the field, with special attention to the details of the experimental designs. Future study design should aim to improve the standardization of experimental procedures and to provide a more holistic understanding of the role of STIM proteins in neutrophils function.
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Affiliation(s)
- Nicolas Demaurex
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, 1211, Switzerland
| | - Stephanie Saul
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, 1211, Switzerland
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30
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Erard M, Dupré-Crochet S, Nüße O. Biosensors for spatiotemporal detection of reactive oxygen species in cells and tissues. Am J Physiol Regul Integr Comp Physiol 2018; 314:R667-R683. [PMID: 29341828 DOI: 10.1152/ajpregu.00140.2017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Redox biology has become a major issue in numerous areas of physiology. Reactive oxygen species (ROS) have a broad range of roles from signal transduction to growth control and cell death. To understand the nature of these roles, accurate measurement of the reactive compounds is required. An increasing number of tools for ROS detection is available; however, the specificity and sensitivity of these tools are often insufficient. Furthermore, their specificity has been rarely evaluated in complex physiological conditions. Many ROS probes are sensitive to environmental conditions in particular pH, which may interfere with ROS detection and cause misleading results. Accurate detection of ROS in physiology and pathophysiology faces additional challenges concerning the precise localization of the ROS and the timing of their production and disappearance. Certain ROS are membrane permeable, and certain ROS probes move across cells and organelles. Targetable ROS probes such as fluorescent protein-based biosensors are required for accurate localization. Here we analyze these challenges in more detail, provide indications on the strength and weakness of current tools for ROS detection, and point out developments that will provide improved ROS detection methods in the future. There is no universal method that fits all situations in physiology and cell biology. A detailed knowledge of the ROS probes is required to choose the appropriate method for a given biological problem. The knowledge of the shortcomings of these probes should also guide the development of new sensors.
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Affiliation(s)
- Marie Erard
- Université Paris-Sud, Université Paris-Saclay , Orsay , France.,Centre National de la Recherche Scientifique, Laboratoire de Chimie Physique , Orsay , France
| | - Sophie Dupré-Crochet
- Université Paris-Sud, Université Paris-Saclay , Orsay , France.,Centre National de la Recherche Scientifique, Laboratoire de Chimie Physique , Orsay , France
| | - Oliver Nüße
- Centre National de la Recherche Scientifique, Laboratoire de Chimie Physique , Orsay , France
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31
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Li Y, Lou C, Wang W. STIM1 deficiency protects the liver from ischemia/reperfusion injury in mice. Biochem Biophys Res Commun 2018; 496:422-428. [PMID: 29305862 DOI: 10.1016/j.bbrc.2018.01.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 01/02/2018] [Indexed: 02/07/2023]
Abstract
Hepatic ischemia reperfusion (I/R) injury is unavoidable in various clinical conditions. Despite considerable investigation, the underlying molecular mechanism revealing liver I/R injury remains elusive. Stromal interaction molecule 1 (STIM1) plays essential role in regulating the induction of cellular responses to a number of stress conditions, including temperature changes, elevated ROS, and hypoxia. Here, to explore if STIM1 is involved in hepatic injury, wild type (WT) and STIM1-knockout (STIM1-/-) mice were subjected to I/R. Our results indicated that the WT mice with hepatic I/R injury showed higher STIM1 expressions from gene and protein levels in liver tissue samples. Similar results were observed in hypoxia-exposed cells in vitro. Significantly, STIM1-/- attenuated hepatic injury compared to the WT mice after I/R, as evidenced by the improved pathological alterations in liver sections. WT mice subjected to liver I/R showed higher serum alanine aminotransferase (ALT) and aminotransferase (AST) levels, as well as pro-inflammatory cytokines, tumor necrosis factor-α (TNF-α), interleukin (IL)-6 and IL-1β, which were significantly reduced by STIM1-/-. In addition, STIM1-/- also decreased the liver mRNA levels of pro-inflammatory cytokines in mice after I/R injury. Furthermore, significantly decreased oxidative stress was found in STIM1-/- mice after I/R injury compared to the WT group of mice, evidenced by the enhanced superoxide dismutase (SOD) activity and the reduced malondialdehyde (MDA) and reactive oxygen species (ROS) levels in liver tissue samples. Moreover, STIM1-/- mice with hepatic I/R injury displayed the down-regulated nuclear factor of activated T cell (NFAT1), Orai1 and cleaved Caspase-3 levels in liver, contributing to apoptosis suppression. The results above were confirmed in hypoxia-treated cells lacking of STIM1 expression. Together, the findings suggested that STIM1-deletion protects the liver from I/R injury in mice through inhibiting inflammation, oxidative stress and apoptosis. STIM1 could be considered as a potential therapeutic target to ameliorate I/R injury.
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Affiliation(s)
- Yanyang Li
- Department of Pediatrics, Huaihe Hospital, Henan University, Kaifeng 475000, China.
| | - Chunyan Lou
- Department of Pediatrics, Huaihe Hospital, Henan University, Kaifeng 475000, China
| | - Weiying Wang
- Department of Pediatrics, Huaihe Hospital, Henan University, Kaifeng 475000, China
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32
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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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33
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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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34
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Abstract
Calcium (Ca2+) signaling plays a critical role in regulating plethora of cellular functions including cell survival, proliferation and migration. The perturbations in cellular Ca2+ homeostasis can lead to cell death either by activating autophagic pathways or through induction of apoptosis. Endoplasmic reticulum (ER) is the major storehouse of Ca2+ within cells and a number of physiological agonists mediate ER Ca2+ release by activating IP3 receptors (IP3R). This decrease in ER Ca2+ levels is sensed by STIM, which physically interacts and activates plasma membrane Ca2+ selective Orai channels. Emerging literature implicates a key role for STIM1, STIM2, Orai1 and Orai3 in regulating both cell survival and death pathways. In this review, we will retrospect the work highlighting the role of STIM and Orai homologs in regulating cell death signaling. We will further discuss the rationales that could explain the dual role of STIM and Orai proteins in regulating cell fate decisions.
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35
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Nault L, Bouchab L, Dupré-Crochet S, Nüße O, Erard M. Environmental Effects on Reactive Oxygen Species Detection-Learning from the Phagosome. Antioxid Redox Signal 2016; 25:564-76. [PMID: 27225344 DOI: 10.1089/ars.2016.6747] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
SIGNIFICANCE Reactive oxygen species (ROS) fulfill numerous roles in biology ranging from signal transduction to the induction of cell death. To advance our understanding of these sometimes contradictory roles, quantitative, specific, and sensitive ROS measurements are required. RECENT ADVANCES Several organic or genetically encoded probes were successfully developed for ROS detection. CRITICAL ISSUES In some cases, ROS production occurs in a harsh environment such as low pH or high concentration of proteases. However, the ROS sensor may be sensitive to such environmental conditions and therefore becomes inaccurate. While the sensitivity of many ROS sensors to pH is known, many other environmental conditions remain unexplored. This article illustrates the interference between ROS sensors and their environment using the phagosome as an example. In the phagosome, pH changes, high concentration of ROS, and the presence of many proteases generate a hostile and rapidly changing environment. FUTURE DIRECTIONS Difficulties due to cell movement and continuous formation of new phagosomes can be reduced by ratio measurements, if appropriate dyes are identified. For detection in live cells and subcellular locations, fluorescent proteins (FPs) offer several advantages and are used to create biosensors for ROS. Some FPs are directly sensitive to certain ROS as shown here. Although this may compromise their use in an environment with high levels of ROS, it can also be exploited for ROS measurement directly with the FPs themselves. For all types of ROS detection, we suggest a set of basic guidelines for testing the environmental sensitivity of an ROS sensor. Antioxid. Redox Signal. 25, 564-576.
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Affiliation(s)
- Laurent Nault
- Laboratoire de Chimie Physique, Université Paris-Sud, CNRS UMR 8000, Université Paris Saclay , Orsay, France
| | - Leïla Bouchab
- Laboratoire de Chimie Physique, Université Paris-Sud, CNRS UMR 8000, Université Paris Saclay , Orsay, France
| | - Sophie Dupré-Crochet
- Laboratoire de Chimie Physique, Université Paris-Sud, CNRS UMR 8000, Université Paris Saclay , Orsay, France
| | - Oliver Nüße
- Laboratoire de Chimie Physique, Université Paris-Sud, CNRS UMR 8000, Université Paris Saclay , Orsay, France
| | - Marie Erard
- Laboratoire de Chimie Physique, Université Paris-Sud, CNRS UMR 8000, Université Paris Saclay , Orsay, France
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Lindberg E, Winssinger N. High Spatial Resolution Imaging of Endogenous Hydrogen Peroxide in Living Cells by Solid-State Fluorescence. Chembiochem 2016; 17:1612-5. [PMID: 27271247 DOI: 10.1002/cbic.201600211] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Indexed: 11/11/2022]
Abstract
Herein, we describe selective imaging of hydrogen peroxide using a precipitating dye conjugated to a boronic acid-based immolative linker. We achieved visualization of endogenous hydrogen peroxide in phagosomes by solid-state two-photon fluorescence imaging in living cells with exceptionally high spatial resolution.
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Affiliation(s)
- Eric Lindberg
- Department of Organic Chemistry, NCCR Chemical Biology University of Geneva, 30 quai Ernest Ansermet, 1211, Geneva, Switzerland
| | - Nicolas Winssinger
- Department of Organic Chemistry, NCCR Chemical Biology University of Geneva, 30 quai Ernest Ansermet, 1211, Geneva, Switzerland.
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Saul S, Gibhardt CS, Schmidt B, Lis A, Pasieka B, Conrad D, Jung P, Gaupp R, Wonnenberg B, Diler E, Stanisz H, Vogt T, Schwarz EC, Bischoff M, Herrmann M, Tschernig T, Kappl R, Rieger H, Niemeyer BA, Bogeski I. A calcium-redox feedback loop controls human monocyte immune responses: The role of ORAI Ca2+ channels. Sci Signal 2016; 9:ra26. [PMID: 26956485 DOI: 10.1126/scisignal.aaf1639] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In phagocytes, pathogen recognition is followed by Ca(2+) mobilization and NADPH oxidase 2 (NOX2)-mediated "oxidative burst," which involves the rapid production of large amounts of reactive oxygen species (ROS). We showed that ORAI Ca(2+) channels control store-operated Ca(2+) entry, ROS production, and bacterial killing in primary human monocytes. ROS inactivate ORAI channels that lack an ORAI3 subunit. Staphylococcal infection of mice reduced the expression of the gene encoding the redox-sensitive Orai1 and increased the expression of the gene encoding the redox-insensitive Orai3 in the lungs or in bronchoalveolar lavages. A similar switch from ORAI1 to ORAI3 occurred in primary human monocytes exposed to bacterial peptides in culture. These alterations in ORAI1 and ORAI3 abundance shifted the channel assembly toward a more redox-insensitive configuration. Accordingly, silencing ORAI3 increased the redox sensitivity of the channel and enhanced oxidation-induced inhibition of NOX2. We generated a mathematical model that predicted additional features of the Ca(2+)-redox interplay. Our results identified the ORAI-NOX2 feedback loop as a determinant of monocyte immune responses.
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Affiliation(s)
- Stephanie Saul
- Department of Biophysics, Center for Integrative Physiology and Molecular Medicine (CIPPM), School of Medicine, Saarland University, Homburg 66421, Germany
| | - Christine S Gibhardt
- Department of Biophysics, Center for Integrative Physiology and Molecular Medicine (CIPPM), School of Medicine, Saarland University, Homburg 66421, Germany
| | - Barbara Schmidt
- Department of Biophysics, Center for Integrative Physiology and Molecular Medicine (CIPPM), School of Medicine, Saarland University, Homburg 66421, Germany. Department of Theoretical Physics, Saarland University, Saarbrücken 66123, Germany. Molecular Biophysics, CIPMM, School of Medicine, Saarland University, Homburg 66421, Germany
| | - Annette Lis
- Department of Biophysics, Center for Integrative Physiology and Molecular Medicine (CIPPM), School of Medicine, Saarland University, Homburg 66421, Germany
| | - Bastian Pasieka
- Department of Biophysics, Center for Integrative Physiology and Molecular Medicine (CIPPM), School of Medicine, Saarland University, Homburg 66421, Germany
| | - David Conrad
- Department of Biophysics, Center for Integrative Physiology and Molecular Medicine (CIPPM), School of Medicine, Saarland University, Homburg 66421, Germany
| | - Philipp Jung
- Institute of Medical Microbiology and Hygiene, Saarland University, Homburg 66421, Germany
| | - Rosmarie Gaupp
- Institute of Medical Microbiology and Hygiene, Saarland University, Homburg 66421, Germany
| | - Bodo Wonnenberg
- Department of Anatomy, School of Medicine, Saarland University, Homburg 66421, Germany
| | - Ebru Diler
- Department of Anatomy, School of Medicine, Saarland University, Homburg 66421, Germany
| | - Hedwig Stanisz
- Department of Dermatology, Venereology and Allergology, University Hospital of Saarland, Homburg 66421, Germany
| | - Thomas Vogt
- Department of Dermatology, Venereology and Allergology, University Hospital of Saarland, Homburg 66421, Germany
| | - Eva C Schwarz
- Department of Biophysics, Center for Integrative Physiology and Molecular Medicine (CIPPM), School of Medicine, Saarland University, Homburg 66421, Germany
| | - Markus Bischoff
- Institute of Medical Microbiology and Hygiene, Saarland University, Homburg 66421, Germany
| | - Mathias Herrmann
- Institute of Medical Microbiology and Hygiene, Saarland University, Homburg 66421, Germany
| | - Thomas Tschernig
- Department of Anatomy, School of Medicine, Saarland University, Homburg 66421, Germany
| | - Reinhard Kappl
- Department of Biophysics, Center for Integrative Physiology and Molecular Medicine (CIPPM), School of Medicine, Saarland University, Homburg 66421, Germany
| | - Heiko Rieger
- Department of Theoretical Physics, Saarland University, Saarbrücken 66123, Germany
| | - Barbara A Niemeyer
- Molecular Biophysics, CIPMM, School of Medicine, Saarland University, Homburg 66421, Germany
| | - Ivan Bogeski
- Department of Biophysics, Center for Integrative Physiology and Molecular Medicine (CIPPM), School of Medicine, Saarland University, Homburg 66421, Germany.
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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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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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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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41
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Elling R, Keller B, Weidinger C, Häffner M, Deshmukh SD, Zee I, Speckmann C, Ehl S, Schwarz K, Feske S, Henneke P. Preserved effector functions of human ORAI1- and STIM1-deficient neutrophils. J Allergy Clin Immunol 2015; 137:1587-1591.e7. [PMID: 26670474 DOI: 10.1016/j.jaci.2015.09.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 09/17/2015] [Accepted: 09/22/2015] [Indexed: 10/22/2022]
Affiliation(s)
- Roland Elling
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany; Division of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, Mass.
| | - Baerbel Keller
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany
| | - Carl Weidinger
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Monika Häffner
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany
| | - Sachin D Deshmukh
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany
| | - Isabelle Zee
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Carsten Speckmann
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany
| | - Stephan Ehl
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany
| | - Klaus Schwarz
- Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Service Baden-Wuerttemberg-Hessen and Institute for Transfusion Medicine University Ulm, Ulm, Germany
| | - Stefan Feske
- Department of Pathology, New York University School of Medicine, New York, NY
| | - Philipp Henneke
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany; Center for Pediatrics and Adolescent Medicine, University Medical Center Freiburg, Freiburg, Germany.
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42
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Clark HL, Jhingran A, Sun Y, Vareechon C, de Jesus Carrion S, Skaar EP, Chazin WJ, Calera JA, Hohl TM, Pearlman E. Zinc and Manganese Chelation by Neutrophil S100A8/A9 (Calprotectin) Limits Extracellular Aspergillus fumigatus Hyphal Growth and Corneal Infection. THE JOURNAL OF IMMUNOLOGY 2015; 196:336-44. [PMID: 26582948 DOI: 10.4049/jimmunol.1502037] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 10/19/2015] [Indexed: 01/09/2023]
Abstract
Calprotectin, a heterodimer of S100A8 and S100A9, is an abundant neutrophil protein that possesses antimicrobial activity primarily because of its ability to chelate zinc and manganese. In the current study, we showed that neutrophils from calprotectin-deficient S100A9(-/-) mice have an impaired ability to inhibit Aspergillus fumigatus hyphal growth in vitro and in infected corneas in a murine model of fungal keratitis; however, the ability to inhibit hyphal growth was restored in S100A9(-/-) mice by injecting recombinant calprotectin. Furthermore, using recombinant calprotectin with mutations in either the Zn and Mn binding sites or the Mn binding site alone, we show that both zinc and manganese binding are necessary for calprotectin's antihyphal activity. In contrast to hyphae, we found no role for neutrophil calprotectin in uptake or killing of intracellular A. fumigatus conidia either in vitro or in a murine model of pulmonary aspergillosis. We also found that an A. fumigatus ∆zafA mutant, which demonstrates deficient zinc transport, exhibits impaired growth in infected corneas and following incubation with neutrophils or calprotectin in vitro as compared with wild-type. Collectively, these studies demonstrate a novel stage-specific susceptibility of A. fumigatus to zinc and manganese chelation by neutrophil-derived calprotectin.
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Affiliation(s)
- Heather L Clark
- Department of Ophthalmology and Visual Science, Case Western Reserve University, Cleveland, OH 44106; Department of Ophthalmology, University of California, Irvine, Irvine, CA 92697; Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA 92697
| | - Anupam Jhingran
- Infectious Disease Service, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY 10065
| | - Yan Sun
- Department of Ophthalmology and Visual Science, Case Western Reserve University, Cleveland, OH 44106
| | - Chairut Vareechon
- Department of Ophthalmology and Visual Science, Case Western Reserve University, Cleveland, OH 44106
| | - Steven de Jesus Carrion
- Department of Ophthalmology and Visual Science, Case Western Reserve University, Cleveland, OH 44106
| | - Eric P Skaar
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, TN 37232; Veterans Affairs Tennessee Valley Healthcare System, Nashville, TN 37212
| | - Walter J Chazin
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232; Center for Structural Biology, Vanderbilt University School of Medicine, Nashville, TN 37232; and
| | - José Antonio Calera
- Instituto de Biología Funcional y Genómica, Centro Mixto del Consejo Superior de Investigaciones Científicas y Universidad de Salamanca, 37002 Salamanca, Spain
| | - Tobias M Hohl
- Infectious Disease Service, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY 10065
| | - Eric Pearlman
- Department of Ophthalmology and Visual Science, Case Western Reserve University, Cleveland, OH 44106; Department of Ophthalmology, University of California, Irvine, Irvine, CA 92697; Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA 92697;
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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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Görlach A, Bertram K, Hudecova S, Krizanova O. Calcium and ROS: A mutual interplay. Redox Biol 2015; 6:260-271. [PMID: 26296072 PMCID: PMC4556774 DOI: 10.1016/j.redox.2015.08.010] [Citation(s) in RCA: 929] [Impact Index Per Article: 103.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 08/08/2015] [Accepted: 08/10/2015] [Indexed: 02/07/2023] Open
Abstract
Calcium is an important second messenger involved in intra- and extracellular signaling cascades and plays an essential role in cell life and death decisions. The Ca2+ signaling network works in many different ways to regulate cellular processes that function over a wide dynamic range due to the action of buffers, pumps and exchangers on the plasma membrane as well as in internal stores. Calcium signaling pathways interact with other cellular signaling systems such as reactive oxygen species (ROS). Although initially considered to be potentially detrimental byproducts of aerobic metabolism, it is now clear that ROS generated in sub-toxic levels by different intracellular systems act as signaling molecules involved in various cellular processes including growth and cell death. Increasing evidence suggests a mutual interplay between calcium and ROS signaling systems which seems to have important implications for fine tuning cellular signaling networks. However, dysfunction in either of the systems might affect the other system thus potentiating harmful effects which might contribute to the pathogenesis of various disorders. Calcium and ROS act as signaling molecules inside the cell and their pathways can interact. The mutual interplay of calcium and ROS is required for the fine tuning of signaling. Failure in the interplay results in dysfunction and pathologies.
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Affiliation(s)
- Agnes Görlach
- Experimental and Molecular Pediatric Cardiology, German Heart Center Munich at the Technical University Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany.
| | - Katharina Bertram
- Experimental and Molecular Pediatric Cardiology, German Heart Center Munich at the Technical University Munich, Germany
| | - Sona Hudecova
- Center for Molecular Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Olga Krizanova
- Center for Molecular Medicine, Slovak Academy of Sciences, Bratislava, Slovakia; Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovakia.
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45
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Varga G, Gattorno M, Foell D, Rubartelli A. Redox distress and genetic defects conspire in systemic autoinflammatory diseases. Nat Rev Rheumatol 2015; 11:670-80. [PMID: 26241183 DOI: 10.1038/nrrheum.2015.105] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inflammation is initiated by innate immune cell activation after contact with pathogens or tissue injury. An increasing number of observations have suggested that cellular stress, in the absence of infection or evident damage, can also induce inflammation. Thus, inflammation can be triggered by exogenous pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs)-so-called classic inflammation-or by endogenous stress resulting from tissue or cellular dysfunction. External triggers and cellular stress activate the same molecular pathways, possibly explaining why classic and stress-induced inflammation have similar clinical manifestations. In some systemic autoinflammatory diseases (SAIDs), inflammatory cells exhibit reduction-oxidation (redox) distress, having high levels of reactive oxygen species (ROS), which promote proinflammatory cytokine production and contribute to the subversion of mechanisms that self-limit inflammation. Thus, SAIDs can be viewed as a paradigm of stress-related inflammation, being characterized by recurrent flares or chronic inflammation (with no recognizable external triggers) and by a failure to downmodulate this inflammation. Here, we review SAID pathophysiology, focusing on the major cytokines and DAMPs, and on the key roles of redox distress. New therapeutic opportunities to tackle SAIDs by blocking stress-induced pathways and control the response to stress in patients are also discussed.
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Affiliation(s)
- Georg Varga
- Department of Paediatric Rheumatology and Immunology, University Children's Hospital Münster, Domagkstrasse 3, 48149 Münster, Germany
| | - Marco Gattorno
- Second Division of Paediatrics, G. Gaslini Institute, 16145 Genova, Italy
| | - Dirk Foell
- Department of Paediatric Rheumatology and Immunology, University Children's Hospital Münster, Domagkstrasse 3, 48149 Münster, Germany
| | - Anna Rubartelli
- Cell Biology Unit, IRCCS Azienda Ospedaliera Universitaria San Martino-IST, Largo Rosanna Benzi 10, 16132 Genoa, Italy
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46
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Provost KA, Smith M, Arold SP, Hava DL, Sethi S. Calcium Restores the Macrophage Response to NontypeableHaemophilus influenzaein Chronic Obstructive Pulmonary Disease. Am J Respir Cell Mol Biol 2015; 52:728-37. [DOI: 10.1165/rcmb.2014-0172oc] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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47
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Steinckwich N, Myers P, Janardhan KS, Flagler ND, King D, Petranka JG, Putney JW. Role of the store-operated calcium entry protein, STIM1, in neutrophil chemotaxis and infiltration into a murine model of psoriasis-inflamed skin. FASEB J 2015; 29:3003-13. [PMID: 25837581 DOI: 10.1096/fj.14-265215] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 03/09/2015] [Indexed: 12/27/2022]
Abstract
Stromal interaction molecule 1 (STIM1) is a Ca(2+) sensor protein that initiates store-operated calcium entry (SOCE). STIM1 is known to be involved in the chemoattractant signaling pathway for FPR1 in cell lines, but its role in in vivo functioning of neutrophils is unclear. Plaque-type psoriasis is a chronic inflammatory skin disorder associated with chemoattractants driving neutrophils into the epidermis. We investigated the involvement of STIM1 in neutrophil chemotaxis in vitro, as well as during chronic psoriatic inflammation. To this end, we used conditional knockout (KO) mice lacking STIM1 in cells of myeloid lineage (STIM1(fl/fl) LysM-cre). We demonstrate that STIM1 is required for chemotaxis because of multiple chemoattractants in mouse neutrophils in vitro. Using an imiquimod-induced psoriasis-like skin model, we show that KO mice had less neutrophil infiltration in the epidermis than controls, whereas neither chemoattractant production in the epidermis nor macrophage migration was decreased. KO mice displayed a more rapid reversal of the outward signs of psoriasis (plaques). Thus, KO of STIM1 impairs neutrophil contribution to psoriatic inflammation. Our data provide new insights to our understanding of how STIM1 orchestrates the cellular behavior underlying chemotaxis and illustrate the important role of SOCE in a disease-related pathologic model.
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Affiliation(s)
- Natacha Steinckwich
- *Signal Transduction Laboratory, Comparative Medicine Branch, Integrated Laboratory Systems, Incorporated, Cellular and Molecular Pathology Branch,National Toxicology Program, and Special Techniques Group, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
| | - Page Myers
- *Signal Transduction Laboratory, Comparative Medicine Branch, Integrated Laboratory Systems, Incorporated, Cellular and Molecular Pathology Branch,National Toxicology Program, and Special Techniques Group, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
| | - Kyathanahalli S Janardhan
- *Signal Transduction Laboratory, Comparative Medicine Branch, Integrated Laboratory Systems, Incorporated, Cellular and Molecular Pathology Branch,National Toxicology Program, and Special Techniques Group, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
| | - Norris D Flagler
- *Signal Transduction Laboratory, Comparative Medicine Branch, Integrated Laboratory Systems, Incorporated, Cellular and Molecular Pathology Branch,National Toxicology Program, and Special Techniques Group, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
| | - Debra King
- *Signal Transduction Laboratory, Comparative Medicine Branch, Integrated Laboratory Systems, Incorporated, Cellular and Molecular Pathology Branch,National Toxicology Program, and Special Techniques Group, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
| | - John G Petranka
- *Signal Transduction Laboratory, Comparative Medicine Branch, Integrated Laboratory Systems, Incorporated, Cellular and Molecular Pathology Branch,National Toxicology Program, and Special Techniques Group, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
| | - James W Putney
- *Signal Transduction Laboratory, Comparative Medicine Branch, Integrated Laboratory Systems, Incorporated, Cellular and Molecular Pathology Branch,National Toxicology Program, and Special Techniques Group, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
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48
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Clemens RA, Lowell CA. Store-operated calcium signaling in neutrophils. J Leukoc Biol 2015; 98:497-502. [PMID: 25714804 DOI: 10.1189/jlb.2mr1114-573r] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Accepted: 02/06/2015] [Indexed: 11/24/2022] Open
Abstract
Calcium signals in neutrophils are initiated by a variety of cell-surface receptors, including formyl peptide and other GPCRs, FcRs, and integrins. The predominant pathway by which calcium enters immune cells is termed SOCE, whereby plasma membrane CRAC channels allow influx of extracellular calcium into the cytoplasm when intracellular ER stores are depleted. The identification of 2 key families of SOCE regulators, STIM calcium "sensors" and ORAI calcium channels, has allowed for genetic manipulation of SOCE pathways and provided valuable insight into the molecular mechanism of calcium signaling in immune cells, including neutrophils. This review focuses on our current knowledge of the molecules involved in neutrophil SOCE and how study of these molecules has further informed our understanding of the role of calcium signaling in neutrophil activation.
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Affiliation(s)
- Regina A Clemens
- Departments of *Pediatrics and Laboratory Medicine and the Program in Immunology, University of California, San Francisco, California, USA
| | - Clifford A Lowell
- Departments of *Pediatrics and Laboratory Medicine and the Program in Immunology, University of California, San Francisco, California, USA
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49
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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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50
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Duan W, Wei H, Cui T, Gao B. A membrane permeable fluorescent Ca2+ probe based on bis-BODIPY with branched PEG. J Mater Chem B 2015; 3:894-898. [DOI: 10.1039/c4tb01457j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The cellular uptake of MPFCP-2 is improved by the PEG encapsulation method, and then MPFCP-2 could pass through the cell membrane by itself, and monitor the changes of the intracellular Ca2+ signal.
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Affiliation(s)
- Wenfeng Duan
- Key Laboratory of Analytical Science and Technology of Hebei Province
- College of Chemistry and Environmental Science
- Hebei University
- Baoding
- China
| | - Huimin Wei
- Key Laboratory of Analytical Science and Technology of Hebei Province
- College of Chemistry and Environmental Science
- Hebei University
- Baoding
- China
| | - Tengbo Cui
- Key Laboratory of Analytical Science and Technology of Hebei Province
- College of Chemistry and Environmental Science
- Hebei University
- Baoding
- China
| | - Baoxiang Gao
- Key Laboratory of Analytical Science and Technology of Hebei Province
- College of Chemistry and Environmental Science
- Hebei University
- Baoding
- China
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