1
|
Yeoh WJ, Krebs P. SHIP1 and its role for innate immune regulation-Novel targets for immunotherapy. Eur J Immunol 2023; 53:e2350446. [PMID: 37742135 DOI: 10.1002/eji.202350446] [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: 06/15/2023] [Revised: 08/03/2023] [Accepted: 09/21/2023] [Indexed: 09/25/2023]
Abstract
Phosphoinositide-3-kinase/AKT (PI3K/AKT) signaling plays key roles in the regulation of cellular activity in both health and disease. In immune cells, this PI3K/AKT pathway is critically regulated by the phosphoinositide phosphatase SHIP1, which has been reported to modulate the function of most immune subsets. In this review, we summarize our current knowledge of SHIP1 with a focus on innate immune cells, where we reflect on the most pertinent aspects described in the current literature. We also present several small-molecule agonists and antagonists of SHIP1 developed over the last two decades, which have led to improved outcomes in several preclinical models of disease. We outline these promising findings and put them in relation to human diseases with unmet medical needs, where we discuss the most attractive targets for immune therapies based on SHIP1 modulation.
Collapse
Affiliation(s)
- Wen Jie Yeoh
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Philippe Krebs
- Institute of Tissue Medicine and Pathology, University of Bern, Bern, Switzerland
| |
Collapse
|
2
|
Kandell WM, Donatelli SS, Trinh TL, Calescibetta AR, So T, Tu N, Gilvary DL, Chen X, Cheng P, Adams WA, Chen YK, Liu J, Djeu JY, Wei S, Eksioglu EA. MicroRNA-155 governs SHIP-1 expression and localization in NK cells and regulates subsequent infiltration into murine AT3 mammary carcinoma. PLoS One 2020; 15:e0225820. [PMID: 32040476 PMCID: PMC7010306 DOI: 10.1371/journal.pone.0225820] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 11/13/2019] [Indexed: 01/29/2023] Open
Abstract
NK cell migration and activation are crucial elements of tumor immune surveillance. In mammary carcinomas, the number and function of NK cells is diminished, despite being positively associated with clinical outcome. MicroRNA-155 (miR-155) has been shown to be an important regulator of NK cell activation through its interaction with SHIP-1 downstream of inhibitory NK receptor signaling, but has not been explored in regard to NK cell migration. Here, we explored the migratory potential and function of NK cells in subcutaneous AT3 in mice lacking miR-155. Without tumor, these bic/miR-155-/- mice possess similar numbers of NK cells that exhibit comparable surface levels of cytotoxic receptors as NK cells from wild-type (WT) mice. Isolated miR-155-/- NK cells also exhibit equivalent cytotoxicity towards tumor targets in vitro compared to isolated WT control NK cells, despite overexpression of known miR-155 gene targets. NK cells isolated from miR-155-/- mice exhibit impaired F-actin polymerization and migratory capacity in Boyden-chamber assays in response chemokine (C-C motif) ligand 2 (CCL2). This migratory capacity could be normalized in the presence of SHIP-1 inhibitors. Of note, miR-155-/- mice challenged with mammary carcinomas exhibited heightened tumor burden which correlated with a lower number of tumor-infiltrating NK1.1+ cells. Our results support a novel, physiological role for SHIP-1 in the control of NK cell tumor trafficking, and implicate miR-155 in the regulation of NK cell chemotaxis, in the context of mammary carcinoma. This may implicate dysfunctional NK cells in the lack of tumor clearance in mice.
Collapse
Affiliation(s)
- Wendy M. Kandell
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
- Cancer Biology Ph.D. Program, University of South Florida, Tampa, Florida, United States of America
| | - Sarah S. Donatelli
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Thu Le Trinh
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
- Dong Nai Technology University, Dong Nai Province, Vietnam
| | | | - Tina So
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Nhan Tu
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Danielle L. Gilvary
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Xianghong Chen
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Pingyan Cheng
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - William A. Adams
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Yin-Kai Chen
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Jinhong Liu
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Julie Y. Djeu
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Sheng Wei
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
| | - Erika A. Eksioglu
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, Florida, United States of America
- * E-mail:
| |
Collapse
|
3
|
Capuano C, Pighi C, Maggio R, Battella S, Morrone S, Palmieri G, Santoni A, Klein C, Galandrini R. CD16 pre-ligation by defucosylated tumor-targeting mAb sensitizes human NK cells to γ c cytokine stimulation via PI3K/mTOR axis. Cancer Immunol Immunother 2020; 69:501-512. [PMID: 31950225 PMCID: PMC7113231 DOI: 10.1007/s00262-020-02482-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/04/2020] [Indexed: 12/18/2022]
Abstract
Obinutuzumab is a glycoengineered tumor-targeting anti-CD20 mAb with a modified crystallizable fragment (Fc) domain designed to increase the affinity for the FcγRIIIA/CD16 receptor, which was recently approved for clinical use in CLL and follicular lymphoma. Here we extend our previous observation that, in human NK cells, the sustained CD16 ligation by obinutuzumab-opsonized targets leads to a markedly enhanced IFN-γ production upon a subsequent cytokine re-stimulation. The increased IFN-γ competence in response to IL-2 or IL-15 is attributable to post-transcriptional regulation, as it does not correlate with the upregulation of IFN-γ mRNA levels. Different from the reference molecule rituximab, we observe that the stimulation with obinutuzumab promotes the upregulation of microRNA (miR)-155 expression. A similar trend was also observed in NK cells from untreated CLL patients stimulated with obinutuzumab-opsonized autologous leukemia. miR-155 upregulation associates with reduced levels of SHIP-1 inositol phosphatase, which acts in constraining PI3K-dependent signals, by virtue of its ability to mediate phosphatidylinositol 3,4,5-trisphosphate (PIP3) de-phosphorylation. Downstream of PI3K, the phosphorylation status of mammalian target of rapamycin (mTOR) effector molecule, S6, results in amplified response to IL-2 or IL-15 stimulation in obinutuzumab-experienced cells. Importantly, NK cell treatment with the PI3K or mTOR inhibitors, idelalisib and rapamycin, respectively, prevents the enhanced cytokine responsiveness, thus, highlighting the relevance of the PI3K/mTOR axis in CD16-dependent priming. The enhanced IFN-γ competence may be envisaged to potentiate the immunoregulatory role of NK cells in a therapeutic setting.
Collapse
Affiliation(s)
- Cristina Capuano
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy
| | - Chiara Pighi
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy
| | - Roberta Maggio
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy.,Clinical Cancer Research, Imperial College London, London, UK
| | - Simone Battella
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy
| | - Stefania Morrone
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy
| | - Gabriella Palmieri
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy
| | - Angela Santoni
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy.,Laboratorio Pasteur Italia Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy.,IRCCS Neuromed, Pozzilli, Italy
| | - Christian Klein
- Roche Pharmaceutical Research and Early Development Roche Innovation Center Zurich, Schlieren, Switzerland
| | - Ricciarda Galandrini
- Department of Experimental Medicine, Sapienza University of Rome, Viale Regina Elena, 324, 00161, Rome, Italy.
| |
Collapse
|
4
|
Liu CF, Min XY, Wang N, Wang JX, Ma N, Dong X, Zhang B, Wu W, Li ZF, Zhou W, Li K. Complement Receptor 3 Has Negative Impact on Tumor Surveillance through Suppression of Natural Killer Cell Function. Front Immunol 2017; 8:1602. [PMID: 29209332 PMCID: PMC5702005 DOI: 10.3389/fimmu.2017.01602] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 11/06/2017] [Indexed: 01/31/2023] Open
Abstract
Complement receptor 3 (CR3) is expressed abundantly on natural killer (NK) cells; however, whether it plays roles in NK cell-dependent tumor surveillance is largely unknown. Here, we show that CR3 is an important negative regulator of NK cell function, which has negative impact on tumor surveillance. Mice deficient in CR3 (CD11b-/- mice) exhibited a more activated NK phenotype and had enhanced NK-dependent tumor killing. In a B16-luc melanoma-induced lung tumor growth and metastasis model, mice deficient in CR3 had reduced tumor growth and metastases, compared with WT mice. In addition, adaptive transfer of NK cells lacking CR3 (into NK-deficient mice) mediated more efficient suppression of tumor growth and metastases, compared with the transfer of CR3 sufficient NK cells, suggesting that CR3 can impair tumor surveillance through suppression of NK cell function. In vitro analyses showed that engagement of CR3 with iC3b (classical CR3 ligand) on NK cells negatively regulated NK cell activity and effector functions (i.e. direct tumor cell killing, antibody-dependent NK-mediated tumor killing). Cell signaling analyses showed that iC3b stimulation caused activation of Src homology 2 domain-containing inositol-5-phosphatase-1 (SHIP-1) and JNK, and suppression of ERK in NK cells, supporting that iC3b mediates negative regulation of NK cell function through its effects on SHIP-1, JNK, and ERK signal transduction pathways. Thus, our findings demonstrate a previously unknown role for CR3 in dysregulation of NK-dependent tumor surveillance and suggest that the iC3b/CR3 signaling is a critical negative regulator of NK cell function and may represent a new target for preserving NK cell function in cancer patients and improving NK cell-based therapy.
Collapse
Affiliation(s)
- Cheng-Fei Liu
- Core Research Laboratory, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - Xiao-Yun Min
- Core Research Laboratory, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - Naiyin Wang
- Medical Research Council (MRC) Centre for Transplantation, King's College London, Guy's Hospital, London, United Kingdom
| | - Jia-Xing Wang
- Core Research Laboratory, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - Ning Ma
- Core Research Laboratory, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - Xia Dong
- Medical Research Council (MRC) Centre for Transplantation, King's College London, Guy's Hospital, London, United Kingdom
| | - Bing Zhang
- Core Research Laboratory, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - Weiju Wu
- Medical Research Council (MRC) Centre for Transplantation, King's College London, Guy's Hospital, London, United Kingdom
| | - Zong-Fang Li
- National Local Joint Engineering Research Centre of Biodiagnostics and Biotherapy, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China.,Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, Xi'an, China
| | - Wuding Zhou
- Medical Research Council (MRC) Centre for Transplantation, King's College London, Guy's Hospital, London, United Kingdom
| | - Ke Li
- Core Research Laboratory, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China.,National Local Joint Engineering Research Centre of Biodiagnostics and Biotherapy, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| |
Collapse
|
5
|
Gumbleton M, Vivier E, Kerr WG. SHIP1 intrinsically regulates NK cell signaling and education, resulting in tolerance of an MHC class I-mismatched bone marrow graft in mice. THE JOURNAL OF IMMUNOLOGY 2015; 194:2847-54. [PMID: 25687756 DOI: 10.4049/jimmunol.1402930] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
NK cells are an important component of host immune defense against malignancy and infection. NK cells are educated by MHC class I ligands to ensure self-tolerance while also promoting lytic competency against altered self and damaged self targets. However, the intracellular molecular events that culminate in tolerance and functional competency of educated NK cells remain undefined. Mice with germline deficiency in SHIP1 were shown to have a defective NK cell compartment. However, SHIP1 is expressed in all hematopoietic lineages, and consequently several hematolymphoid phenotypes have already been identified in certain cell types that are the result of SHIP1 deficiency in cells in separate and distinct lineages, that is, cell-extrinsic phenotypes. Thus, it was previously impossible to determine the NK cell-intrinsic role of SHIP1. In the present study, through the creation of an NK cell-specific deletion mouse model of SHIP1, we show that SHIP1 plays a profound NK lineage-intrinsic role in NK cell homeostasis, development, education, and cytokine production. Moreover, we show SHIP1 expression by NK cells is required for in vivo-mismatched bone marrow allograft rejection as well as for NK memory responses to hapten.
Collapse
Affiliation(s)
- Matthew Gumbleton
- Department of Microbiology and Immunology, State University of New York Upstate Medical University, Syracuse, NY 13210
| | - Eric Vivier
- Centre d'Immunologie de Marseille-Luminy, Aix-Marseille University Unité Mixte 2, 13288 Marseille, France; INSERM Unité 1104, 13288 Marseille, France; Centre National de la Recherche Scientifique Unité Mixte de Recherche 7280, 13288 Marseille, France; Service d'Immunologie, Assistance Publique-Hôpitaux de Marseille, Hôpital de la Conception, 13385 Marseille, France
| | - William G Kerr
- Department of Microbiology and Immunology, State University of New York Upstate Medical University, Syracuse, NY 13210; Department of Pediatrics, State University of New York Upstate Medical University, Syracuse, NY 13210; and Department of Chemistry, Syracuse University, Syracuse, NY 13210
| |
Collapse
|
6
|
Concentraciones de interleucina-15 en preeclámpticas y embarazadas normotensas sanas. CLINICA E INVESTIGACION EN GINECOLOGIA Y OBSTETRICIA 2013. [DOI: 10.1016/j.gine.2011.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
7
|
Gumbleton M, Kerr WG. Role of inositol phospholipid signaling in natural killer cell biology. Front Immunol 2013; 4:47. [PMID: 23508471 PMCID: PMC3589743 DOI: 10.3389/fimmu.2013.00047] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Accepted: 02/08/2013] [Indexed: 12/31/2022] Open
Abstract
Natural killer (NK) cells are important for host defense against malignancy and infection. At a cellular level NK cells are activated when signals from activating receptors exceed signaling from inhibitory receptors. At a molecular level NK cells undergo an education process to both prevent autoimmunity and acquire lytic capacity. Mouse models have shown important roles for inositol phospholipid signaling in lymphocytes. NK cells from mice with deletion in different members of the inositol phospholipid signaling pathway exhibit defects in development, NK cell repertoire expression and effector function. Here we review the current state of knowledge concerning the function of inositol phospholipid signaling components in NK cell biology.
Collapse
Affiliation(s)
- Matthew Gumbleton
- Department of Microbiology and Immunology, State University of New York Upstate Medical University Syracuse, NY, USA
| | | |
Collapse
|
8
|
Overexpression of miR-155 causes expansion, arrest in terminal differentiation and functional activation of mouse natural killer cells. Blood 2013; 121:3126-34. [PMID: 23422749 DOI: 10.1182/blood-2012-12-467597] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
It is known that microRNAs (miRs) are involved in lymphocyte development, homeostasis, activation, and occasionally malignant transformation. In this study, a miR-155 transgene (tg) was driven to be overexpressed off of the lck promoter in order to assess its effects on natural killer (NK) cell biology in vivo. miR-155 tg mice have an increase in NK-cell number with an excess of the CD11b(low)CD27(high) NK subset, indicative of a halt in terminal NK-cell differentiation that proved to be intrinsic to the cell itself. The increase in NK cells results, in part, from improved survival in medium alone and enhanced expansion with endogenous or exogenous interleukin 15. Phenotypic and functional data from miR-155 tg NK cells showed constitutive activation and enhanced target cell conjugation, resulting in more potent antitumor activity in vitro and improved survival of lymphoma-bearing mice in vivo when compared with wild type NK cells. The enhanced NK-cell survival, expansion, activation, and tumor control that result from overexpression of miR-155 in NK cells could be explained, in part, via diminished expression of the inositol phosphatase SHIP1 and increased activation of ERK and AKT kinases. Thus, the regulation of miR-155 is important for NK-cell development, homeostasis, and activation.
Collapse
|
9
|
Hwang I, Zhang T, Scott JM, Kim AR, Lee T, Kakarla T, Kim A, Sunwoo JB, Kim S. Identification of human NK cells that are deficient for signaling adaptor FcRγ and specialized for antibody-dependent immune functions. Int Immunol 2012; 24:793-802. [PMID: 22962434 DOI: 10.1093/intimm/dxs080] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
NK cells respond to tumor and virus-infected cells directly through several activation receptors, including natural cytotoxicity receptors, or indirectly through the activating Fc receptor CD16 for antibody-coated cells. Triggering of NK-cell effector functions through these receptors depends on physically associated transmembrane signaling adaptors, such as FcRγ (also known as FcεRIγ) and CD3ζ, both of which have been traditionally believed to be expressed by all mature NK cells. However, we have identified a distinct subset of human NK cells that are deficient for FcRγ expression but express normal levels of CD3ζ. FcRγ-deficient NK cells were readily detectable in about one-third of the healthy individuals examined. The deficiency was confined to the CD56(dim) population and was due to low FcRγ mRNA. FcRγ-deficient NK cells displayed dramatically reduced expression of the natural cytotoxicity receptors NKp46 and NKp30 but still expressed substantial levels of CD16. Compared to FcRγ-expressing NK cells, FcRγ-deficient NK cells showed poor direct reactivity toward tumor targets as measured by cytokine production and degranulation. Unexpectedly, however, FcRγ-deficient NK cells exhibited significantly more robust responsiveness upon stimulation through CD16, particularly for cytokine production, compared to FcRγ-expressing NK cells. Thus, our study reveals FcRγ-deficient NK cells as a novel subset of human NK cells that have remarkably potent responses toward antibody-coated targets. These findings also illustrate a differential contribution of FcRγ and CD3ζ for the expression and functional activity of their associated receptors.
Collapse
Affiliation(s)
- Ilwoong Hwang
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Abstract
MicroRNAs (miRs) are small, noncoding RNA molecules with important regulatory functions whose role in regulating natural killer (NK) cell biology is not well defined. Here, we show that miR-155 is synergistically induced in primary human NK cells after costimulation with IL-12 and IL-18, or with IL-12 and CD16 clustering. Over-expression of miR-155 enhanced induction of IFN-γ by IL-12 and IL-18 or CD16 stimulation, whereas knockdown of miR-155 or its disruption suppressed IFN-γ induction in monokine and/or CD16-stimulated NK cells. These effects on the regulation of NK cell IFN-γ expression were found to be mediated at least in part via miR-155's direct effects on the inositol phosphatase SHIP1. Consistent with this, we observed that modulation of miR-155 overrides IL-12 and IL-18-mediated regulation of SHIP1 expression in NK cells. Collectively, our data indicate that miR-155 expression is regulated by stimuli that strongly induce IFN-γ in NK cells such as IL-12, IL-18, and CD16 activation, and that miR-155 functions as a positive regulator of IFN-γ production in human NK cells, at least in part via down-regulating SHIP1. These findings may have clinical relevance for targeting miR-155 in neoplastic disease.
Collapse
|
11
|
Condé C, Gloire G, Piette J. Enzymatic and non-enzymatic activities of SHIP-1 in signal transduction and cancer. Biochem Pharmacol 2011; 82:1320-34. [PMID: 21672530 DOI: 10.1016/j.bcp.2011.05.031] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 05/27/2011] [Indexed: 12/29/2022]
Abstract
PI3K cascade is a central signaling pathway regulating cell proliferation, growth, differentiation, and survival. Tight regulation of the PI3K signaling pathway is necessary to avoid aberrant cell proliferation and cancer development. Together with SHIP-1, the inositol phosphatases PTEN and SHIP-2 are the gatekeepers of this pathway. In this review, we will focus on SHIP-1 functions. Negative regulation of immune cell activation by SHIP-1 is well characterized. Besides its catalytic activity, SHIP-1 also displays non-enzymatic activity playing role in several immune pathways. Indeed, SHIP-1 exhibits several domains that mediate protein-protein interaction. This review emphasizes the negative regulation of immune cell activation by SHIP-1 that is mediated by its protein-protein interaction.
Collapse
Affiliation(s)
- Claude Condé
- Laboratory of Virology & Immunology, GIGA-Research B34, University of Liège, B-4000 Liège, Belgium
| | | | | |
Collapse
|
12
|
Correia MP, Costa AV, Uhrberg M, Cardoso EM, Arosa FA. IL-15 induces CD8+ T cells to acquire functional NK receptors capable of modulating cytotoxicity and cytokine secretion. Immunobiology 2010; 216:604-12. [PMID: 20956026 DOI: 10.1016/j.imbio.2010.09.012] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2010] [Revised: 09/15/2010] [Accepted: 09/20/2010] [Indexed: 02/08/2023]
Abstract
During the last years several authors have described a small population of CD8+ T cells expressing NK receptors (NKRs). Although their origin remains largely unknown, we have recently demonstrated that IL-15 is capable of inducing NKR expression in purified human CD8+CD56- T cells. In this study we show that IL-15-driven NKR induction in CD8+ T cells was linked with CD56 de novo acquisition, consistent with an effector-memory phenotype, increased anti-apoptotic levels, high granzyme B/perforin expression and with the ability of displaying in vitro NK-like cytotoxicity. Interestingly, dissection of NKR functional outcome in IL-15-cultured CD8+ T cells revealed: (i) that NKG2D cross-linking was able per se to upregulate degranulation levels and (ii) that KIR and NKG2A cross-linking upregulated secretion of cytokines such as IFN-γ, TNF-α, IL-1β and IL-10. These results suggest that IL-15 is capable of differentiating CD8+ T cells into NK-like T cells displaying a regulatory phenotype.
Collapse
|
13
|
Leung WH, Tarasenko T, Bolland S. Differential roles for the inositol phosphatase SHIP in the regulation of macrophages and lymphocytes. Immunol Res 2009; 43:243-51. [PMID: 18989630 DOI: 10.1007/s12026-008-8078-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The SH2 domain-containing inositol 5'-phosphatase (SHIP) negatively regulates antigen, cytokine, and Fc receptor signaling pathways in immune cells. Our knowledge of the function of SHIP largely derives from in vitro studies that utilized SHIP-deficient cell lines and immune cells isolated from SHIP null mice. To avoid the pleiotropic effects observed in mice with germline deletion of SHIP, we have used the Cre-lox system to generate SHIP conditional knockout mice with deletion in specific immune cell populations. In this review we summarize our observations from mice with deletion of SHIP in lymphocyte and macrophage lineages and contrast them with earlier data gathered by the analysis of SHIP null mice.
Collapse
Affiliation(s)
- Wai-Hang Leung
- Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 12441 Parklawn drive, Twinbrook 2, Room 217, Rockville, MD 20852, USA
| | | | | |
Collapse
|
14
|
Miah SMS, Hughes TL, Campbell KS. KIR2DL4 differentially signals downstream functions in human NK cells through distinct structural modules. THE JOURNAL OF IMMUNOLOGY 2008; 180:2922-32. [PMID: 18292514 DOI: 10.4049/jimmunol.180.5.2922] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
KIR2DL4 (2DL4) is a member of the killer cell Ig-like receptor (KIR) family in human NK cells. It can stimulate potent cytokine production and weak cytolytic activity in resting NK cells, but the mechanism for 2DL4-mediated signaling remains unclear. In this study we characterized the signaling pathways stimulated by 2DL4 engagement. In a human NK-like cell line, KHYG-1, cross-linking of 2DL4 activated MAPKs including JNK, ERK, and p38. Furthermore, 2DL4 cross-linking resulted in phosphorylation of IkappaB kinase beta (IKKbeta) and the phosphorylation and degradation of IkappaBalpha, which indicate activation of the classical NF-kappaB pathway. Engagement of 2DL4 was also shown to activate the transcription and translation of a variety of cytokine genes, including TNF-alpha, IFN-gamma, MIP1alpha, MIP1beta, and IL-8. Pharmacological inhibitors of JNK, MEK1/2 and p38, blocked IFN-gamma, IL-8, and MIP1alpha production, suggesting that MAPKs are regulating 2DL4-mediated cytokine production in a nonredundant manner. Activation of both p38 and ERK appear to be upstream of the stimulation of NF-kappaB. Mutation of a transmembrane arginine in 2DL4 to glycine (R/G mutant) abrogated FcepsilonRI-gamma association, as well as receptor-mediated cytolytic activity and calcium responses. Surprisingly, the R/G mutant still activated MAPKs and the NF-kappaB pathway and selectively stimulated the production of MIP1alpha, but not that of IFN-gamma or IL-8. In conclusion, we provide evidence that the activating functions of 2DL4 can be compartmentalized into two distinct structural modules: 1) through transmembrane association with FcepsilonRI-gamma; and 2) through another receptor domain independent of the transmembrane arginine.
Collapse
Affiliation(s)
- S M Shahjahan Miah
- Fox Chase Cancer Center, Division of Basic Science, Institute for Cancer Research, Philadelphia, PA 19111, USA
| | | | | |
Collapse
|
15
|
Colocalization of the IL-12 receptor and FcgammaRIIIa to natural killer cell lipid rafts leads to activation of ERK and enhanced production of interferon-gamma. Blood 2008; 111:4173-83. [PMID: 18174382 DOI: 10.1182/blood-2007-01-068908] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Natural killer (NK) cells express an activating receptor for the Fc portion of IgG (FcgammaRIIIa) that mediates interferon (IFN)-gamma production in response to antibody (Ab)-coated targets. We have previously demonstrated that NK cells activated with interleukin-12 (IL-12) in the presence of immobilized IgG secrete 10-fold or more higher levels of IFN-gamma as compared with stimulation with either agent alone. We examined the intracellular signaling pathways responsible for this synergistic IFN-gamma production. NK cells costimulated via the FcR and the IL-12 receptor (IL-12R) exhibited enhanced levels of activated STAT4 and Syk as compared with NK cells stimulated through either receptor alone. Extracellular signal-regulated kinase (ERK) was also synergistically activated under these conditions. Studies with specific chemical inhibitors revealed that the activation of ERK was dependent on the activation of PI3-K, whose activation was dependent on Syk, and that sequential activation of these molecules was required for NK cell IFN-gamma production in response to FcR and IL-12 stimulation. Retroviral transfection of ERK1 into primary human NK cells substantially increased IFN-gamma production in response to immobilized IgG and IL-12, while transfection of human NK cells with a dominant-negative ERK1 abrogated IFN-gamma production. Confocal microscopy and cellular fractionation experiments revealed that FcgammaRIIIa and the IL-12R colocalized to areas of lipid raft microdomains in response to costimulation with IgG and IL-12. Chemical disruption of lipid rafts inhibited ERK signaling in response to costimulation and significantly inhibited IFN-gamma production. These data suggest that dual recruitment of FcgammaRIIIa and the IL-12R to lipid raft microdomains allows for enhanced activation of downstream signaling events that lead to IFN-gamma production.
Collapse
|
16
|
Johnson AJ, Wagner AJ, Cheney CM, Smith LL, Lucas DM, Guster SK, Grever MR, Lin TS, Byrd JC. Rituximab and 17-allylamino-17-demethoxygeldanamycin induce synergistic apoptosis in B-cell chronic lymphocytic leukaemia. Br J Haematol 2007; 139:837-44. [DOI: 10.1111/j.1365-2141.2007.06878.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
17
|
Kim N, Saudemont A, Webb L, Camps M, Ruckle T, Hirsch E, Turner M, Colucci F. The p110delta catalytic isoform of PI3K is a key player in NK-cell development and cytokine secretion. Blood 2007; 110:3202-8. [PMID: 17644738 DOI: 10.1182/blood-2007-02-075366] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
AbstractThe signal transduction pathways that lead activated natural killer (NK) cells to produce cytokines, releases cytotoxic granules, or do both, are not clearly dissected. For example, phosphoinositide 3-kinases (PI3Ks) are key players in the execution of both functions, but the relative contribution of each isoform is unknown. We show here that the catalytic isoform p110δ, not p110γ, was required for interferon-γ (IFN-γ), tumor necrosis factor-α (TNF-α), and granulocyte macrophage colony-stimulating factor (GM-CSF) secretion, whereas neither was necessary for cytotoxicity. Yet, when both p110δ and p110γ isoforms were inactivated by a combination of genetic and biochemical approaches, cytotoxicity was decreased. NK-cell numbers were also affected by the lack of p110δ but not p110γ and more severely so in mice lacking both subunits. These results provide genetic evidence that p110δ is the dominant PI3K isoform for cytokine secretion by NK cells and suggest that PI3Ks cooperate during NK-cell development and cytotoxicity.
Collapse
Affiliation(s)
- Nayoung Kim
- Laboratory of Lymphocyte Signalling and Development, Babraham Institute, Cambridge, United Kingdom
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Parsa KVL, Ganesan LP, Rajaram MVS, Gavrilin MA, Balagopal A, Mohapatra NP, Wewers MD, Schlesinger LS, Gunn JS, Tridandapani S. Macrophage pro-inflammatory response to Francisella novicida infection is regulated by SHIP. PLoS Pathog 2006; 2:e71. [PMID: 16848641 PMCID: PMC1513262 DOI: 10.1371/journal.ppat.0020071] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2006] [Accepted: 06/02/2006] [Indexed: 01/14/2023] Open
Abstract
Francisella tularensis, a Gram-negative facultative intracellular pathogen infecting principally macrophages and monocytes, is the etiological agent of tularemia. Macrophage responses to F. tularensis infection include the production of pro-inflammatory cytokines such as interleukin (IL)-12, which is critical for immunity against infection. Molecular mechanisms regulating production of these inflammatory mediators are poorly understood. Herein we report that the SH2 domain-containing inositol phosphatase (SHIP) is phosphorylated upon infection of primary murine macrophages with the genetically related F. novicida, and negatively regulates F. novicida-induced cytokine production. Analyses of the molecular details revealed that in addition to activating the MAP kinases, F. novicida infection also activated the phosphatidylinositol 3-kinase (PI3K)/Akt pathway in these cells. Interestingly, SHIP-deficient macrophages displayed enhanced Akt activation upon F. novicida infection, suggesting elevated PI3K-dependent activation pathways in absence of SHIP. Inhibition of PI3K/Akt resulted in suppression of F. novicida-induced cytokine production through the inhibition of NFkappaB. Consistently, macrophages lacking SHIP displayed enhanced NFkappaB-driven gene transcription, whereas overexpression of SHIP led to decreased NFkappaB activation. Thus, we propose that SHIP negatively regulates F. novicida-induced inflammatory cytokine response by antagonizing the PI3K/Akt pathway and suppressing NFkappaB-mediated gene transcription. A detailed analysis of phosphoinositide signaling may provide valuable clues for better understanding the pathogenesis of tularemia.
Collapse
Affiliation(s)
- Kishore V. L Parsa
- The Ohio State Biochemistry Program, The Ohio State University, Columbus, Ohio, United States of America
| | - Latha P Ganesan
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Murugesan V. S Rajaram
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Mikhail A Gavrilin
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Ashwin Balagopal
- Department of Molecular Virology, Immunology, and Medical Genetics and Center for Microbial Interface Biology, The Ohio State University, Columbus, Ohio, United States of America
| | - Nrusingh P Mohapatra
- Department of Molecular Virology, Immunology, and Medical Genetics and Center for Microbial Interface Biology, The Ohio State University, Columbus, Ohio, United States of America
| | - Mark D Wewers
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Larry S Schlesinger
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
- Department of Molecular Virology, Immunology, and Medical Genetics and Center for Microbial Interface Biology, The Ohio State University, Columbus, Ohio, United States of America
| | - John S Gunn
- Department of Molecular Virology, Immunology, and Medical Genetics and Center for Microbial Interface Biology, The Ohio State University, Columbus, Ohio, United States of America
| | - Susheela Tridandapani
- The Ohio State Biochemistry Program, The Ohio State University, Columbus, Ohio, United States of America
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio, United States of America
- * To whom correspondence should be addressed. E-mail:
| |
Collapse
|