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Zuo S, Li C, Sun X, Deng B, Zhang Y, Han Y, Ling Z, Xu J, Duan J, Wang Z, Yu X, Zheng Q, Xu X, Zong J, Tian Z, Shan L, Tang K, Huang H, Song Y, Niu Q, Zhou D, Feng S, Han Z, Wang G, Wu T, Pan J, Feng X. C-JUN overexpressing CAR-T cells in acute myeloid leukemia: preclinical characterization and phase I trial. Nat Commun 2024; 15:6155. [PMID: 39039086 PMCID: PMC11263573 DOI: 10.1038/s41467-024-50485-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 07/11/2024] [Indexed: 07/24/2024] Open
Abstract
Chimeric antigen receptor (CAR) T cells show suboptimal efficacy in acute myeloid leukemia (AML). We find that CAR T cells exposed to myeloid leukemia show impaired activation and cytolytic function, accompanied by impaired antigen receptor downstream calcium, ZAP70, ERK, and C-JUN signaling, compared to those exposed to B-cell leukemia. These defects are caused in part by the high expression of CD155 by AML. Overexpressing C-JUN, but not other antigen receptor downstream components, maximally restores anti-tumor function. C-JUN overexpression increases costimulatory molecules and cytokines through reinvigoration of ERK or transcriptional activation, independent of anti-exhaustion. We conduct an open-label, non-randomized, single-arm, phase I trial of C-JUN-overexpressing CAR-T in AML (NCT04835519) with safety and efficacy as primary and secondary endpoints, respectively. Of the four patients treated, one has grade 4 (dose-limiting toxicity) and three have grade 1-2 cytokine release syndrome. Two patients have no detectable bone marrow blasts and one patient has blast reduction after treatment. Thus, overexpressing C-JUN endows CAR-T efficacy in AML.
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MESH Headings
- Humans
- Leukemia, Myeloid, Acute/therapy
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/metabolism
- Receptors, Chimeric Antigen/metabolism
- Receptors, Chimeric Antigen/immunology
- Receptors, Chimeric Antigen/genetics
- Immunotherapy, Adoptive/methods
- Middle Aged
- Male
- Female
- Proto-Oncogene Proteins c-jun/metabolism
- Animals
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Aged
- Adult
- Cell Line, Tumor
- Mice
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Affiliation(s)
- Shiyu Zuo
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Chuo Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
- Central laboratory, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xiaolei Sun
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Biping Deng
- Cytology Laboratory, Beijing GoBroad Boren Hospital, Beijing, China
| | - Yibing Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Yajing Han
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Zhuojun Ling
- Department of Hematology, Beijing GoBroad Boren Hospital, Beijing, China
| | - Jinlong Xu
- Department of Hematology, Beijing GoBroad Boren Hospital, Beijing, China
| | - Jiajia Duan
- Department of Hematology, Beijing GoBroad Boren Hospital, Beijing, China
| | - Zelin Wang
- Department of Hematology, Beijing GoBroad Boren Hospital, Beijing, China
| | - Xinjian Yu
- Medical Laboratory, Beijing GoBroad Boren Hospital, Beijing, China
| | - Qinlong Zheng
- Medical Laboratory, Beijing GoBroad Boren Hospital, Beijing, China
| | - Xiuwen Xu
- Medical Laboratory, Beijing GoBroad Boren Hospital, Beijing, China
| | - Jiao Zong
- Medical Laboratory, Beijing GoBroad Boren Hospital, Beijing, China
| | - Zhenglong Tian
- Gobroad Research Center, Gobroad Medical Group, Beijing, China
| | - Lingling Shan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Kaiting Tang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Huifang Huang
- Central laboratory, Fujian Medical University Union Hospital, Fuzhou, China
| | - Yanzhi Song
- Department of Bone Marrow Transplantation, Beijing GoBroad Boren Hospital, Beijing, China
| | - Qing Niu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Dongming Zhou
- Department of Pathogen Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Sizhou Feng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Zhongchao Han
- Institute of Stem Cells, Health-Biotech (Tianjin) Stem Cell Research Institute Co., Ltd, Tianjin, China
| | - Guoling Wang
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, China.
| | - Tong Wu
- Department of Bone Marrow Transplantation, Beijing GoBroad Boren Hospital, Beijing, China.
| | - Jing Pan
- State Key Laboratory of Experimental Hematology, Boren Clinical Translational Center, Department of Hematology, Beijing GoBroad Boren Hospital, Beijing, China.
| | - Xiaoming Feng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.
- Tianjin Institutes of Health Science, Tianjin, China.
- Central laboratory, Fujian Medical University Union Hospital, Fuzhou, China.
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Mitrokhin MV, Kalsin V, Kamkina O, Babkina I, Zotov A, Troitskiy VA, Mladenov MI, Kamkin GA. Participation of PKG and PKA-related pathways in the IFN-γ induced modulation of the BK Ca channel activity in human cardiac fibroblasts. J Pharmacol Sci 2019; 141:25-31. [PMID: 31533896 DOI: 10.1016/j.jphs.2019.08.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 07/31/2019] [Accepted: 08/20/2019] [Indexed: 01/19/2023] Open
Abstract
This study was devoted to elucidating the interferon (IFN)-γ-induced signaling pathway and the interaction between protein kinase G (PKG) and protein kinase A (PKA) through large-conductance Ca(2+)-activated K(+) channels in human cardiac fibroblasts. The IK currents were recorded using a whole-cell patch clamp method. A large depolarization (+50 mV) and a high Ca2+ concentration (pCa 6.0) were used in the internal pipette solution to activate only the KCa channels. Iberiotoxin (Ibtx), which selectively inhibits BKCa channels at a concentration of 100 nmol/l, caused a significant reduction of basal IK. Adding IFN-γ in the presence of Ibtx had no effect on IK. Application of the IFN-γ caused a significant reduction in total K+ current amplitude, recorded with a 500 ms depolarizing pulse duration, to +50 mV from a holding potential of -80 mV. We tested the involvement of the sGC/cGMP/PKG signaling pathway by using specific PKG inhibitor KT 5823, potent sGC inhibitor NS 2028, and specific sGC agonist BAY 41-8543. The obtained data confirmed that only sGC participated in the IFN-γ-mediated BKCa channel modulation, which was mediated further by PKA. This study represents first evidence about the participation of the IFN-γ in the mechanisms responsible for BKCa modulation in HCFs. We also believe that this process occurs via negative crosstalk between the PKG- and PKA-associated pathways.
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Affiliation(s)
- M V Mitrokhin
- Department of Fundamental and Applied Physiology, Russian National Research Medical University, Ostrovitjanova 1, Moscow 117997, Russia
| | - V Kalsin
- Federal Scientific Clinical Center for Specialized Types of Medical Assistance and Medical Technologies for the Federal Medical and Biological Agency, Orekhoviy Boulevard 28, Moscow 115682, Russia
| | - O Kamkina
- Department of Fundamental and Applied Physiology, Russian National Research Medical University, Ostrovitjanova 1, Moscow 117997, Russia
| | - I Babkina
- Federal Scientific Clinical Center for Specialized Types of Medical Assistance and Medical Technologies for the Federal Medical and Biological Agency, Orekhoviy Boulevard 28, Moscow 115682, Russia
| | - A Zotov
- Federal Scientific Clinical Center for Specialized Types of Medical Assistance and Medical Technologies for the Federal Medical and Biological Agency, Orekhoviy Boulevard 28, Moscow 115682, Russia
| | - V A Troitskiy
- Federal Scientific Clinical Center for Specialized Types of Medical Assistance and Medical Technologies for the Federal Medical and Biological Agency, Orekhoviy Boulevard 28, Moscow 115682, Russia
| | - M I Mladenov
- Department of Fundamental and Applied Physiology, Russian National Research Medical University, Ostrovitjanova 1, Moscow 117997, Russia; Faculty of Natural Sciences and Mathematics, Institute of Biology, "Ss. Cyril and Methodius" University, P.O. Box 162, 1000 Skopje, Macedonia.
| | - G A Kamkin
- Department of Fundamental and Applied Physiology, Russian National Research Medical University, Ostrovitjanova 1, Moscow 117997, Russia
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Mitrokhin V, Filatova T, Shim A, Bilichenko A, Abramochkin D, Kamkin A, Mladenov M. L-type Ca2+ channels’ involvement in IFN-γ-induced signaling in rat ventricular cardiomyocytes. J Physiol Biochem 2019; 75:109-115. [DOI: 10.1007/s13105-019-00662-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 01/22/2019] [Indexed: 12/31/2022]
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Bertin FR, Rys RN, Mathieu C, Laurance S, Lemarié CA, Blostein MD. Natural killer cells induce neutrophil extracellular trap formation in venous thrombosis. J Thromb Haemost 2019; 17:403-414. [PMID: 30456926 DOI: 10.1111/jth.14339] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Indexed: 02/04/2023]
Abstract
Essentials Neutrophil extracellular traps (NETs) are generated during deep vein thrombosis (DVT). The role of interferon γ (IFNγ) and natural killer (NK) cells in NET formation was studied. IFNγ promote venous thrombosis through NET formation. NK cell depletion reduces DVT. SUMMARY: Background Neutrophils contribute to venous thrombosis through the release of neutrophil extracellular traps (NETs), but the mechanism triggering their formation remains unclear. In vitro data show that interferon (IFN)-γ induces the formation of NETs. Objectives To determine whether IFN-γ and the transcription factor T-box expressed on T cells (Tbet) promote venous thrombosis through neutrophil activation. Methods Venous thrombosis was induced by flow restriction in the inferior vena cava in IFN-γ-/- , Tbet-/- or wild-type (WT) mice. After 48 h, thrombus size was measured by the use of high-frequency ultrasound. NET formation was determined by immunofluorescence. Results and Conclusions Thrombus formation was reduced in Tbet-/- and IFN-γ-/- mice, suggesting that Tbet/IFN-γ-expressing cells are required for venous thrombosis. The number of NETs formed during thrombosis was significantly lower in Tbet-/- and IFN-γ-/- mice. NET formation was also decreased in WT mice treated with an IFN-γ-blocking antibody. Injection of recombinant IFN-γ into IFN-γ-/- mice rescued the phenotype. Natural killer (NK) cells were specifically depleted prior to venous thrombosis induction. NK cell depletion results in decreased NET formation and smaller thrombi, suggesting that NK cells are required for thrombus development. In depleted mice, adoptive transfer of WT NK cells induced a similar thrombosis burden as in WT mice. In contrast, adoptive transfer of IFN-γ -/- NK cells resulted in thrombi similar in size to those in depleted mice. In vitro, we showed that WT neutrophils released fewer NETs when they were cocultured with IFN-γ-/- NK cells. This study demonstrates that NK cell-dependent IFN-γ production is crucial for thrombus development by promoting the formation of NETs by neutrophils.
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Affiliation(s)
- F-R Bertin
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada
- School of Veterinary Science, The University of Queensland, Gatton, Queensland, Australia
| | - R N Rys
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada
| | - C Mathieu
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada
| | - S Laurance
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada
| | - C A Lemarié
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada
- Department of Medicine, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal, Québec, Canada
- EA3878 (GETBO), University Hospital of Brest, European University of Occidental Brittany, Brest, France
| | - M D Blostein
- Lady Davis Institute for Medical Research, Montreal, Québec, Canada
- Department of Medicine, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal, Québec, Canada
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Sengupta S, Le TT, Adam A, Tadić V, Stubendorff B, Keiner S, Kloss L, Prell T, Witte OW, Grosskreutz J. Interferon-γ Receptor 1 and GluR1 upregulated in motor neurons of symptomatic hSOD1G93A mice. Eur J Neurosci 2019; 49:62-78. [PMID: 30457201 DOI: 10.1111/ejn.14276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 10/18/2018] [Accepted: 11/08/2018] [Indexed: 01/21/2023]
Abstract
Motor neurons are markedly vulnerable to excitotoxicity mostly by alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic receptor (AMPAR) stimulation and are principal targets in the neurodegenerative disease Amyotrophic Lateral Sclerosis. Interferon-gamma (IFN-γ), a pro-inflammatory cytokine, can independently cause neuronal dysfunction by triggering calcium influx through a calcium-permeable complex of IFN-γ receptor 1(IFNGR1) subunit and AMPAR subunit GluR1. This receptor complex is formed via a non-canonical neuron-specific IFN-γ pathway that involves Jak1/Stat1 and Protein Kinase A. In this study, we explore the expression of the pathway's participants for the first time in the hSOD1G93A Amyotrophic Lateral Sclerosis mouse model. Elevated IFNGR1 and GluR1 are detected in motor neurons of hSOD1G93A symptomatic mice ex vivo, unlike the downstream targets - Jak1, Stat1, and Protein Kinase A. We, also, determine effects of IFN-γ alone or in the presence of an excitotoxic agent, kainate, on motor neuron survival in vitro. IFN-γ induces neuronal damage, but does not influence kainate-mediated excitotoxicity. Increased IFNGR1 can most likely sensitize motor neurons to excitotoxic insults involving GluR1 and/or pathways mediated by IFN-γ, thus, serving as a potential direct link between neurodegeneration and inflammation in Amyotrophic Lateral Sclerosis.
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Affiliation(s)
- Saikata Sengupta
- Hans Berger Department of Neurology, Jena University Hospital, Jena, Germany
| | - Thanh Tu Le
- Hans Berger Department of Neurology, Jena University Hospital, Jena, Germany
| | - Adam Adam
- Hans Berger Department of Neurology, Jena University Hospital, Jena, Germany
| | - Vedrana Tadić
- Hans Berger Department of Neurology, Jena University Hospital, Jena, Germany
| | | | - Silke Keiner
- Hans Berger Department of Neurology, Jena University Hospital, Jena, Germany
| | - Linda Kloss
- Hans Berger Department of Neurology, Jena University Hospital, Jena, Germany
| | - Tino Prell
- Hans Berger Department of Neurology, Jena University Hospital, Jena, Germany
| | - Otto W Witte
- Hans Berger Department of Neurology, Jena University Hospital, Jena, Germany
| | - Julian Grosskreutz
- Hans Berger Department of Neurology, Jena University Hospital, Jena, Germany
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6
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CD40 ligand deficiency causes functional defects of peripheral neutrophils that are improved by exogenous IFN-γ. J Allergy Clin Immunol 2018. [PMID: 29518426 DOI: 10.1016/j.jaci.2018.02.026] [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: 12/21/2022]
Abstract
BACKGROUND Patients with X-linked hyper-IgM syndrome caused by CD40 ligand (CD40L) deficiency often present with episodic, cyclic, or chronic neutropenia, suggesting abnormal neutrophil development in the absence of CD40L-CD40 interaction. However, even when not neutropenic and despite immunoglobulin replacement therapy, CD40L-deficient patients are susceptible to life-threatening infections caused by opportunistic pathogens, suggesting impaired phagocyte function and the need for novel therapeutic approaches. OBJECTIVES We sought to analyze whether peripheral neutrophils from CD40L-deficient patients display functional defects and to explore the in vitro effects of recombinant human IFN-γ (rhIFN-γ) on neutrophil function. METHODS We investigated the microbicidal activity, respiratory burst, and transcriptome profile of neutrophils from CD40L-deficient patients. In addition, we evaluated whether the lack of CD40L in mice also affects neutrophil function. RESULTS Neutrophils from CD40L-deficient patients exhibited defective respiratory burst and microbicidal activity, which were improved in vitro by rhIFN-γ but not soluble CD40L. Moreover, neutrophils from patients showed reduced CD16 protein expression and a dysregulated transcriptome suggestive of impaired differentiation. Similar to CD40L-deficient patients, CD40L knockout mice were found to have impaired neutrophil responses. In parallel, we demonstrated that soluble CD40L induces the promyelocytic cell line HL-60 to proliferate and mature by regulating the expression of genes of the same Gene Ontology categories (eg, cell differentiation) when compared with those dysregulated in peripheral blood neutrophils from CD40L-deficient patients. CONCLUSION Our data suggest a nonredundant role of CD40L-CD40 interaction in neutrophil development and function that could be improved in vitro by rhIFN-γ, indicating a potential novel therapeutic application for this cytokine.
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Kindzelskii AL, Petty HR. Ion channel clustering enhances weak electric field detection by neutrophils: apparent roles of SKF96365-sensitive cation channels and myeloperoxidase trafficking in cellular responses. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2005; 35:1-26. [PMID: 16044273 DOI: 10.1007/s00249-005-0001-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2005] [Revised: 05/13/2005] [Accepted: 06/23/2005] [Indexed: 10/25/2022]
Abstract
We have tested Galvanovskis and Sandblom's prediction that ion channel clustering enhances weak electric field detection by cells as well as how the elicited signals couple to metabolic alterations. Electric field application was timed to coincide with certain known intracellular chemical oscillators (phase-matched conditions). Polarized, but not spherical, neutrophils labeled with anti-K(v)1.3, FL-DHP, and anti-TRP1, but not anti-T-type Ca(2+) channels, displayed clusters at the lamellipodium. Resonance energy transfer experiments showed that these channel pairs were in close proximity. Dose-field sensitivity studies of channel blockers suggested that K(+) and Ca(2+) channels participate in field detection, as judged by enhanced oscillatory NAD(P)H amplitudes. Further studies suggested that K(+) channel blockers act by reducing the neutrophil's membrane potential. Mibefradil and SKF93635, which block T-type Ca(2+) channels and SOCs, respectively, affected field detection at appropriate doses. Microfluorometry and high-speed imaging of indo-1-labeled neutrophils was used to examine Ca(2+) signaling. Electric fields enhanced Ca(2+) spike amplitude and triggered formation of a second traveling Ca(2+) wave. Mibefradil blocked Ca(2+) spikes and waves. Although 10 microM SKF96365 mimicked mibefradil, 7 microM SKF96365 specifically inhibited electric field-induced Ca(2+) signals, suggesting that one SKF96365-senstive site is influenced by electric fields. Although cells remained morphologically polarized, ion channel clusters at the lamellipodium and electric field sensitivity were inhibited by methyl-beta-cyclodextrin. As a result of phase-matched electric field application in the presence of ion channel clusters, myeloperoxidase (MPO) was found to traffic to the cell surface. As MPO participates in high amplitude metabolic oscillations, this suggests a link between the signaling apparatus and metabolic changes. Furthermore, electric field effects could be blocked by MPO inhibition or removal while certain electric field effects were mimicked by the addition of MPO to untreated cells. Therefore, channel clustering plays an important role in electric field detection and downstream responses of morphologically polarized neutrophils. In addition to providing new mechanistic insights concerning electric field interactions with cells, our work suggests novel methods to remotely manipulate physiological pathways.
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Affiliation(s)
- Andrei L Kindzelskii
- Department of Ophthalmology and Visual Sciences, The University of Michigan Medical School, 1000 Wall Street, Ann Arbor, MI 48105, USA
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Ellis TN, Beaman BL. Interferon-gamma activation of polymorphonuclear neutrophil function. Immunology 2004; 112:2-12. [PMID: 15096178 PMCID: PMC1782470 DOI: 10.1111/j.1365-2567.2004.01849.x] [Citation(s) in RCA: 195] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2004] [Accepted: 02/16/2004] [Indexed: 11/29/2022] Open
Abstract
As current research illuminates the dynamic interplay between the innate and acquired immune responses, the interaction and communication between these two arms has yet to be fully investigated. Polymorphonuclear neutrophils (PMNs) and interferon-gamma (IFN-gamma) are known critical components of innate and acquired immunity, respectively. However, recent studies have demonstrated that these two components are not entirely isolated. Treatment of PMNs with IFN-gamma elicits a variety of responses depending on stimuli and environmental conditions. These responses include increased oxidative burst, differential gene expression, and induction of antigen presentation. Many of these functions have been overlooked in PMNs, which have long been classified as terminal phagocytic cells incapable of protein synthesis. As this review reports, the old definition of the PMN is in need of an update, as these cells have demonstrated their ability to mediate the transition between the innate and acquired immune responses.
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Affiliation(s)
- Terri N Ellis
- Department of Medical Microbiology and Immunology, University of California School of Medicine, University of California, Davis, CA 95616, USA
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9
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Aas V, Algerøy S, Sand KL, Iversen JG. Fibronectin promotes calcium signaling by interferon-gamma in human neutrophils via G-protein and sphingosine kinase-dependent mechanisms. CELL COMMUNICATION & ADHESION 2004; 8:125-38. [PMID: 11936187 DOI: 10.3109/15419060109080712] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A common intracellular signal activating polymorphonuclear leukocytes (PMN) in inflammation is a change in cytosolic calcium concentration. Previously, we have shown that interferon-gamma (IFN-gamma) induces transient calcium signals in PMN, but only after intracellular calcium store depletion. Using a digital imaging system, we show that adhesion of PMN is critical for IFN-gamma-induced calcium signals, and with PMN attached to the optimal coating, the calcium signals are evoked even in presence of extracellular calcium, that is, non-depleted calcium stores. Adhesion to fibronectin, pure or extracted from plasma by gelatin, improved the IFN-gamma responses compared with serum, plasma, or vitronectin coats. In accordance with previous observations, IFN-gamma-induced calcium signals in fibronectin adherent cells were totally abolished by the G-protein inhibitor pertussis toxin and were also inhibited by the sphingosine kinase inhibitors dimethylsphingosine (DMS) and N-acetylsphingosine (N-Ac-Sp). PMN contact with fibronectin alone, measured in cells sedimenting onto a fibronectin-coated surface or by addition of fibronectin to glass-adherent cells, evoked transient calcium signals. However, PMN in suspension did not respond to the addition of fibronectin or arginine-glycine-aspartate (RGD). The fibronectin-induced calcium signals were also clearly depressed by pertussis toxin and by the sphingosine kinase inhibitors DMS, dihydrosphingosine (DHS), and N-Ac-Sp. When the product of sphingosine kinase activity, sphingosine 1-phosphate (S1-P), was added to the cells, similar calcium signals were induced, which were dependent on a pertussis toxin-sensitive G-protein activity. Finally, addition of S1-P to the cells prior to stimulation with IFN-gamma partly mimicked the priming effect of fibronectin. In conclusion, fibronectin contact evokes by itself a calcium signal in PMN and further promotes calcium signaling by IFN-gamma. We suggest that fibronectin might activate sphingosine kinase, and that the sphingosine 1-phosphate thereby generated induces a calcium signal via a G-protein-dependent mechanism. Apparently, sphingosine kinase activity is also involved in IFN-gamma induced calcium signals.
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Affiliation(s)
- V Aas
- Department of Pharmacology, School of Pharmacy, University of Oslo, Norway.
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10
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Olsen LF, Kummer U, Kindzelskii AL, Petty HR. A model of the oscillatory metabolism of activated neutrophils. Biophys J 2003; 84:69-81. [PMID: 12524266 PMCID: PMC1302594 DOI: 10.1016/s0006-3495(03)74833-4] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2002] [Accepted: 09/04/2002] [Indexed: 11/18/2022] Open
Abstract
We present a two-compartment model to explain the oscillatory behavior observed experimentally in activated neutrophils. Our model is based mainly on the peroxidase-oxidase reaction catalyzed by myeloperoxidase with melatonin as a cofactor and NADPH oxidase, a major protein in the phagosome membrane of the leukocyte. The model predicts that after activation of a neutrophil, an increase in the activity of the hexose monophosphate shunt and the delivery of myeloperoxidase into the phagosome results in oscillations in oxygen and NAD(P)H concentration. The period of oscillation changes from >200 s to 10-30 s. The model is consistent with previously reported oscillations in cell metabolism and oxidant production. Key features and predictions of the model were confirmed experimentally. The requirement of the hexose monophosphate pathway for 10 s oscillations was verified using 6-aminonicotinamide and dexamethasone, which are inhibitors of glucose-6-phosphate dehydrogenase. The role of the NADPH oxidase in promoting oscillations was confirmed by dose-response studies of the effect of diphenylene iodonium, an inhibitor of the NADPH oxidase. Moreover, the model predicted an increase in the amplitude of NADPH oscillations in the presence of melatonin, which was confirmed experimentally. Successful computer modeling of complex chemical dynamics within cells and their chemical perturbation will enhance our ability to identify new antiinflammatory compounds.
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Affiliation(s)
- Lars F Olsen
- European Media Laboratory, Schloss-Wolfsbrunnenweg 33, D-69118 Heidelberg, Germany.
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Chen LW, Jan CR. Mechanisms and modulation of formyl-methionyl-leucyl-phenylalanine (fMLP)-induced Ca2+ mobilization in human neutrophils. Int Immunopharmacol 2001; 1:1341-9. [PMID: 11460314 DOI: 10.1016/s1567-5769(01)00066-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The effect of fMLP (N-formyl-methionyl-leucyl-phenylalanine), a neutrophil-stimulating bacterial peptide, on Ca2+ mobilization in human neutrophils was examined using fura-2 as a Ca2+ indicator. fMLP (10 nM-10 microM) increased [Ca2+]i concentration-dependently. The [Ca2+]i signal comprised an initial rise followed by a gradual decay and a sustained phase. External Ca2+ removal partly decreased the signal. La3+ (50 microM) pretreatment mimicked the effect of Ca2+ removal. In Ca(2+)-free medium, pretreatment with 1 microM thapsigargin (an endoplasmic reticulum Ca2+ pump inhibitor) prevented 10 microM fMLP from increasing [Ca2+]i; whereas 1 microM thapsigargin still significantly increased [Ca2+]i after pretreatment with 10 microM fMLP. Addition of 3 mM Ca2+ induced a concentration-dependent [Ca2+]i increase after pretreatment with fMLP in Ca(2+)-free medium. This Ca2+ entry was partly inhibited by econazole (25 microM), SKF96365 (50 microM), and a phospholipase A2 inhibitor (aristolochic acid; 20 microM). The fMLP (10 microM)-induced Ca2+ release was abolished by inhibiting phospholipase C with 2 microM U73122. The fMLP-induced [Ca2+]i increase was inhibited by 25% by pretreatment with 10 nM phorbol ester to activate protein kinase C but was augmented by 27% by pretreatment with 2 microM GF 109203X to inactivate protein kinase C. We found that fMLP increase reactive oxygen intermediate (ROI) production in neutrophils, which can be suppressed by U73122 pretreatment. Collectively, this study shows that in human neutrophils, fMLP increased [Ca2+]i concentration-dependently by releasing Ca2+ from phospholipase C-coupled, thapsigargin-sensitive stores, accompanied by Ca2+ entry. The fMLP-induced [Ca2+]i rise was modulated by protein kinase C, and the fMLP-induced Ca2+ entry was abolished by La3+, and was reduced by econazole, SKF96365 and inhibition of phospholipase A2.
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Affiliation(s)
- L W Chen
- Department of Surgery, Kaohsiung Veterans General Hospital, 386 Ta Chung 1st Rd., Kaohsiung 813, Taiwan
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Aas V, Larsen K, Iversen JG. Interferon-gamma elicits a G-protein-dependent Ca2+ signal in human neutrophils after depletion of intracellular Ca2+ stores. Cell Signal 1999; 11:101-10. [PMID: 10048787 DOI: 10.1016/s0898-6568(98)00040-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Interferon-gamma (IFN-gamma) has multiple effects on Ca2+ signalling in polymorphonuclear neutrophils (PMNs), including evoked cytosolic Ca2+ transients, increased capacitative calcium influx and increased sequestration of Ca2+ in intracellular stores. The present study was conducted to elucidate the mechanism behind the Ca2+ transients. As observed before, the IFN-gamma-evoked Ca2+ signals were apparent when extracellular Ca2+ was removed. A new finding was that the proportion of responding cells and the extent of calcium release increased with increasing time in EGTA buffer. As assessed by N-formyl-methionyl-leucyl-phenylalanine (fMLP)-stimulated Ca2+ release, the intracellular stores were depleted during this incubation period, and the extent of depletion correlated well with the appearance of IFN-gamma-induced Ca2+ signals. This store dependence of the IFN-gamma-induced Ca2+ signals was confirmed by the appearance of IFN-gamma-evoked Ca2+ signals in the presence of extracellular Ca2+ after store depletion by thapsigargin. The appearance of IFN-gamma-mediated Ca2+-signals in the presence of EGTA indicates that IFN-gamma stimulates Ca2+ release from intracellular stores. This was confirmed by the inability of the calcium transportation blocker La3+ to abolish the IFN-gamma response and the total abrogation of the response by the phospholipase C inhibitor U73122. Although these latter results imply a role for inositol 1,4,5-trisphosphate(IP3) in IFN-gamma signalling, comparison of IFN-gamma-evoked responses with fMLP responses revealed clear differences that suggest different signal-transduction pathways. However, responses to fMLP and IFN-gamma were both depressed by pertussis toxin, and the IFN-gamma responses were, in addition, inhibited by the tyrosine kinase inhibitor genistein. Further evidence of the involvement of tyrosine kinase was a slight stimulatory effect of the protein tyrosine phosphatase inhibitor sodium orthovanadate. The PI-3K activity was of minor importance. In conclusion, we present evidence of a novel signal-transduction mechanism for IFN-gamma in PMNs, dependent on tyrosine kinase activity, a pertussis toxin-sensitive G protein and phospholipase C activity.
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Affiliation(s)
- V Aas
- Department of Physiology, Institute of Basic Medical Sciences, University of Oslo, Norway.
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