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Sabetkam S, Kalarestaghi H, Mazloumi Z, Dizaji Asl K, Norouzi N, Rafat A. The dysfunction of natural killer cells is essential for the development of type 1 diabetes. Pathol Res Pract 2023; 247:154556. [PMID: 37216747 DOI: 10.1016/j.prp.2023.154556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 05/14/2023] [Accepted: 05/18/2023] [Indexed: 05/24/2023]
Abstract
Type 1 diabetes (T1D) is characterized by destruction of pancreatic insulin-producing beta cells by immune cells. In general, environmental and genetic factors can lead to immunological self-tolerance in TID. It is clear that the innate immune system, especially natural killer (NK) cells, is involved in the pathogenesis of T1D. Aberrant NK cell frequencies associated with dysregulation of inhibitory and activating receptors contribute to the initiation and progression of T1D. As T1D is incurable and the metabolic disturbances caused by T1D severely impact patients, a better understanding of NK cell behavior in T1D may facilitate disease treatment strategies. The current review focuses on the role of NK cell receptors in T1D and also highlights ongoing efforts to manipulate key checkpoints in NK cell-targeted therapies.
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Affiliation(s)
- Shahnaz Sabetkam
- Department of Anatomy, Faculty of Medicine, University of Kyrenia, Mersin 10, Kyrenia, Turkey; Department of Histopathology and Anatomy, Faculty of Medical sciences, Tabriz Medical Sciences, Islamic Azad University, Tabriz, Iran
| | - Hossein Kalarestaghi
- Research Laboratory for Embryology and Stem Cell, Department of Anatomical Sciences, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Zeinab Mazloumi
- Department of Medical Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khadijeh Dizaji Asl
- Department of Histopathology and Anatomy, Faculty of Medical sciences, Tabriz Medical Sciences, Islamic Azad University, Tabriz, Iran
| | - Nahid Norouzi
- Nursing Trauma Research Center, Kashan University of Medical Sciences, Kashan, Iran
| | - Ali Rafat
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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2
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Wu L, Wang R, Zhou Y, Zhao D, Chen F, Wu X, Chen X, Chen S, Li J, Zhu J. Natural Killer Cells Infiltration in the Joints Exacerbates Collagen-Induced Arthritis. Front Immunol 2022; 13:860761. [PMID: 35432322 PMCID: PMC9005809 DOI: 10.3389/fimmu.2022.860761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 03/03/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction The role of natural killer (NK) cells in rheumatoid arthritis remains controversial. We aimed to assess the role of NK cells in the pathogenesis of rheumatoid arthritis. Materials and Methods The percentage of NK cells in the peripheral blood, spleen, lymph nodes and inflamed paws from collagen-induced arthritis mice were examined through the disease progression. Correlation between the proportion of NK cells and subsets with arthritis score, histopathological changes, and bone destruction were evaluated. Adoptive cell transfer was performed to determine the effect of NKp46+NK cells on arthritis development, and the role of receptor NKp46 was explored with NKp46 knockout mice. Results The percentage of NK cells in peripheral blood decreased at the late stage of the disease and negatively correlated with arthritis score. NK cells increased in the inflamed paws during arthritis development and were positively associated with arthritis score, histopathological change, and bone destruction. Adoptive transfer of NKp46+NK cells before disease onset resulted in increased NK cells infiltration in the joints, higher incidence of arthritis, more severe clinical symptoms, and more pronounced joint inflammation and bone damage. NKp46 deficiency had no significant influence on the incidence and severity of arthritis in collagen-induced arthritis mice. Conclusions NK cell infiltration in the joints positively correlates with arthritis progression, inflammation, and bone destruction. The pathogenic role of NK cells in rheumatoid arthritis may be independent of the receptor NKp46.
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Affiliation(s)
- Lisheng Wu
- Department of Rheumatic & TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Ran Wang
- Department of Rheumatic & TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yi Zhou
- Department of Obstetrics, Guangdong Women and Children Hospital, Guangzhou, China
| | - Di Zhao
- Department of Rheumatic & TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Feilong Chen
- Department of Rheumatic & TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Xianghui Wu
- Laboratory Animal Research Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoguang Chen
- Department of Pathogen Biology, Key Laboratory of Tropical Disease Research of Guangdong Province, School of Public Health, Southern Medical University, Guangzhou, China
| | - Shixian Chen
- Department of Rheumatic & TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Juan Li
- Department of Rheumatic & TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Traditional Chinese Internal Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Junqing Zhu
- Department of Rheumatic & TCM Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
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3
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Biber G, Sabag B, Raiff A, Ben‐Shmuel A, Puthenveetil A, Benichou JIC, Jubany T, Levy M, Killner S, Barda‐Saad M. Modulation of intrinsic inhibitory checkpoints using nano-carriers to unleash NK cell activity. EMBO Mol Med 2022; 14:e14073. [PMID: 34725941 PMCID: PMC8749471 DOI: 10.15252/emmm.202114073] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 09/22/2021] [Accepted: 09/30/2021] [Indexed: 01/22/2023] Open
Abstract
Natural killer (NK) cells provide a powerful weapon mediating immune defense against viral infections, tumor growth, and metastatic spread. NK cells demonstrate great potential for cancer immunotherapy; they can rapidly and directly kill cancer cells in the absence of MHC-dependent antigen presentation and can initiate a robust immune response in the tumor microenvironment (TME). Nevertheless, current NK cell-based immunotherapies have several drawbacks, such as the requirement for ex vivo expansion of modified NK cells, and low transduction efficiency. Furthermore, to date, no clinical trial has demonstrated a significant benefit for NK-based therapies in patients with advanced solid tumors, mainly due to the suppressive TME. To overcome current obstacles in NK cell-based immunotherapies, we describe here a non-viral lipid nanoparticle-based delivery system that encapsulates small interfering RNAs (siRNAs) to gene silence the key intrinsic inhibitory NK cell molecules, SHP-1, Cbl-b, and c-Cbl. The nanoparticles (NPs) target NK cells in vivo, silence inhibitory checkpoint signaling molecules, and unleash NK cell activity to eliminate tumors. Thus, the novel NP-based system developed here may serve as a powerful tool for future NK cell-based therapeutic approaches.
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Affiliation(s)
- Guy Biber
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐GanIsrael
| | - Batel Sabag
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐GanIsrael
| | - Anat Raiff
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐GanIsrael
| | - Aviad Ben‐Shmuel
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐GanIsrael
| | - Abhishek Puthenveetil
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐GanIsrael
| | - Jennifer I C Benichou
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐GanIsrael
| | - Tammir Jubany
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐GanIsrael
| | - Moria Levy
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐GanIsrael
| | - Shiran Killner
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐GanIsrael
| | - Mira Barda‐Saad
- The Mina and Everard Goodman Faculty of Life SciencesBar‐Ilan UniversityRamat‐GanIsrael
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4
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Gardner G, Fraker CA. Natural Killer Cells as Key Mediators in Type I Diabetes Immunopathology. Front Immunol 2021; 12:722979. [PMID: 34489972 PMCID: PMC8417893 DOI: 10.3389/fimmu.2021.722979] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/05/2021] [Indexed: 01/03/2023] Open
Abstract
The immunopathology of type I diabetes (T1D) presents a complicated case in part because of the multifactorial origin of this disease. Typically, T1D is thought to occur as a result of autoimmunity toward islets of Langerhans, resulting in the destruction of insulin-producing cells (β cells) and thus lifelong reliance on exogenous insulin. However, that explanation obscures much of the underlying mechanism, and the actual precipitating events along with the associated actors (latent viral infection, diverse immune cell types and their roles) are not completely understood. Notably, there is a malfunctioning in the regulation of cytotoxic CD8+ T cells that target endocrine cells through antigen-mediated attack. Further examination has revealed the likelihood of an imbalance in distinct subpopulations of tolerogenic and cytotoxic natural killer (NK) cells that may be the catalyst of adaptive immune system malfunction. The contributions of components outside the immune system, including environmental factors such as chronic viral infection also need more consideration, and much of the recent literature investigating the origins of this disease have focused on these factors. In this review, the details of the immunopathology of T1D regarding NK cell disfunction is discussed, along with how those mechanisms stand within the context of general autoimmune disorders. Finally, the rarer cases of latent autoimmune, COVID-19 (viral), and immune checkpoint inhibitor (ICI) induced diabetes are discussed as their exceptional pathology offers insight into the evolution of the disease as a whole.
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Affiliation(s)
| | - Christopher A. Fraker
- Tissue and Biomedical Engineering Laboratory, Leonard M. Miller School of Medicine, Diabetes Research Institute, University of Miami, Miami, FL, United States
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5
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Ke Q, Kroger CJ, Clark M, Tisch RM. Evolving Antibody Therapies for the Treatment of Type 1 Diabetes. Front Immunol 2021; 11:624568. [PMID: 33679717 PMCID: PMC7930374 DOI: 10.3389/fimmu.2020.624568] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 12/31/2020] [Indexed: 12/24/2022] Open
Abstract
Type 1 diabetes (T1D) is widely considered to be a T cell driven autoimmune disease resulting in reduced insulin production due to dysfunction/destruction of pancreatic β cells. Currently, there continues to be a need for immunotherapies that selectively reestablish persistent β cell-specific self-tolerance for the prevention and remission of T1D in the clinic. The utilization of monoclonal antibodies (mAb) is one strategy to target specific immune cell populations inducing autoimmune-driven pathology. Several mAb have proven to be clinically safe and exhibit varying degrees of efficacy in modulating autoimmunity, including T1D. Traditionally, mAb therapies have been used to deplete a targeted cell population regardless of antigenic specificity. However, this treatment strategy can prove detrimental resulting in the loss of acquired protective immunity. Nondepleting mAb have also been applied to modulate the function of immune effector cells. Recent studies have begun to define novel mechanisms associated with mAb-based immunotherapy that alter the function of targeted effector cell pools. These results suggest short course mAb therapies may have persistent effects for regaining and maintaining self-tolerance. Furthermore, the flexibility to manipulate mAb properties permits the development of novel strategies to target multiple antigens and/or deliver therapeutic drugs by a single mAb molecule. Here, we discuss current and potential future therapeutic mAb treatment strategies for T1D, and T cell-mediated autoimmunity.
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Affiliation(s)
- Qi Ke
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Charles J Kroger
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Matthew Clark
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Roland M Tisch
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
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6
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Xu J, Wang Y, Jiang H, Sun M, Gao J, Xie A. TGF-β in Mice Ameliorates Experimental Autoimmune Encephalomyelitis in Regulating NK Cell Activity. Cell Transplant 2019; 28:1155-1160. [PMID: 31137960 PMCID: PMC6767886 DOI: 10.1177/0963689719852354] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Multiple sclerosis is a disease characterized by inflammation and demyelination located
in the central nervous system. Experimental autoimmune encephalomyelitis (EAE) is the most
common animal model for multiple sclerosis (MS). Although the roles of T cells in MS/EAE
have been well investigated, little is known about the functions of other immune cells in
the neuroinflammation model. Here we found that an essential cytokine transforming growth
factor β (TGF-β) which could mediate the differentiation of Th17/regulatory T cells was
implicated in the natural killer (NK) cells’ activity in EAE. In EAE mice, TGF-β
expression was first increased at the onset and then decreased at the peak, but the
expressions of TGF-β receptors and downstream molecules were not affected in EAE. When we
immunized the mice with MOG antigen, it was revealed that TGF-β treatment reduced
susceptibility to EAE with a lower clinical score than the control mice without TGF-β.
Consistently, inflammatory cytokine production was reduced in the TGF-β treated group,
especially with downregulated pathogenic interleukin-17 in the central nervous system
tissue. Furthermore, TGF-β could increase the transcription level of NK cell marker NCR1
both in the spleen and in the CNS without changing other T cell markers. Meanwhile TGF-β
promoted the proliferation of NK cell proliferation. Taken together, our data demonstrated
that TGF-β could confer protection against EAE model in mice through NK cells, which would
be useful for the clinical therapy of MS.
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Affiliation(s)
- J Xu
- Department of Neurology, The Affiliated Hospital of Qingdao University, China.,Department of Clinical Lab, Weifang Maternal and Child Health Hospital, China
| | - Y Wang
- Department of Pediatrics, Weifang Maternal and Child Health Hospital, China
| | - H Jiang
- Department of Pediatrics, Weifang Maternal and Child Health Hospital, China
| | - M Sun
- Department of Clinical Lab, Weifang Maternal and Child Health Hospital, China.,These authors contributted equally to this article
| | - J Gao
- Department of Pediatrics, Weifang Maternal and Child Health Hospital, China.,These authors contributted equally to this article
| | - A Xie
- Department of Neurology, The Affiliated Hospital of Qingdao University, China.,These authors contributted equally to this article
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7
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Barrow AD, Martin CJ, Colonna M. The Natural Cytotoxicity Receptors in Health and Disease. Front Immunol 2019; 10:909. [PMID: 31134055 PMCID: PMC6514059 DOI: 10.3389/fimmu.2019.00909] [Citation(s) in RCA: 223] [Impact Index Per Article: 44.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 04/09/2019] [Indexed: 12/31/2022] Open
Abstract
The Natural Cytotoxicity Receptors (NCRs), NKp46, NKp44, and NKp30, were some of the first human activating Natural Killer (NK) cell receptors involved in the non-MHC-restricted recognition of tumor cells to be cloned over 20 years ago. Since this time many host- and pathogen-encoded ligands have been proposed to bind the NCRs and regulate the cytotoxic and cytokine-secreting functions of tissue NK cells. This diverse set of NCR ligands can manifest on the surface of tumor or virus-infected cells or can be secreted extracellularly, suggesting a remarkable NCR polyfunctionality that regulates the activity of NK cells in different tissue compartments during steady state or inflammation. Moreover, the NCRs can also be expressed by other innate and adaptive immune cell subsets under certain tissue conditions potentially conferring NK recognition programs to these cells. Here we review NCR biology in health and disease with particular reference to how this important class of receptors regulates the functions of tissue NK cells as well as confer NK cell recognition patterns to other innate and adaptive lymphocyte subsets. Finally, we highlight how NCR biology is being harnessed for novel therapeutic interventions particularly for enhanced tumor surveillance.
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Affiliation(s)
- Alexander David Barrow
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | - Claudia Jane Martin
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, United States
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8
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Ghosh S, Prasad M, Kundu K, Cohen L, Yegodayev KM, Zorea J, Joshua BZ, Lasry B, Dimitstein O, Bahat-Dinur A, Mizrachi A, Lazar V, Elkabets M, Porgador A. Tumor Tissue Explant Culture of Patient-Derived Xenograft as Potential Prioritization Tool for Targeted Therapy. Front Oncol 2019; 9:17. [PMID: 30723707 PMCID: PMC6350270 DOI: 10.3389/fonc.2019.00017] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/07/2019] [Indexed: 12/14/2022] Open
Abstract
Despite of remarkable progress made in the head and neck cancer (HNC) therapy, the survival rate of this metastatic disease remain low. Tailoring the appropriate therapy to patients is a major challenge and highlights the unmet need to have a good preclinical model that will predict clinical response. Hence, we developed an accurate and time efficient drug screening method of tumor ex vivo analysis (TEVA) system, which can predict patient-specific drug responses. In this study, we generated six patient derived xenografts (PDXs) which were utilized for TEVA. Briefly, PDXs were cut into 2 × 2 × 2 mm3 explants and treated with clinically relevant drugs for 24 h. Tumor cell proliferation and death were evaluated by immunohistochemistry and TEVA score was calculated. Ex vivo and in vivo drug efficacy studies were performed on four PDXs and three drugs side-by-side to explore correlation between TEVA and PDX treatment in vivo. Efficacy of drug combinations was also ventured. Optimization of the culture timings dictated 24 h to be the time frame to detect drug responses and drug penetrates 2 × 2 × 2 mm3 explants as signaling pathways were significantly altered. Tumor responses to drugs in TEVA, significantly corresponds with the drug efficacy in mice. Overall, this low cost, robust, relatively simple and efficient 3D tissue-based method, employing material from one PDX, can bypass the necessity of drug validation in immune-incompetent PDX-bearing mice. Our data provides a potential rationale for utilizing TEVA to predict tumor response to targeted and chemo therapies when multiple targets are proposed.
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Affiliation(s)
- Susmita Ghosh
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Manu Prasad
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Kiran Kundu
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
- National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Limor Cohen
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Ksenia M. Yegodayev
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Jonathan Zorea
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Ben-Zion Joshua
- Department of Otolaryngology-Head and Neck Surgery, Soroka Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Batel Lasry
- Department of Otolaryngology-Head and Neck Surgery, Soroka Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Orr Dimitstein
- Department of Otolaryngology-Head and Neck Surgery, Soroka Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Anat Bahat-Dinur
- Department of Otolaryngology-Head and Neck Surgery, Soroka Medical Center and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Aviram Mizrachi
- Department of Otolaryngology-Head and Neck Surgery and The Center for Translational Research in Head and Neck Cancer, Rabin Medical Center, Petah Tikva and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Vladimir Lazar
- Worldwide Innovative Network Association-WIN Consortium, Villejuif, France
| | - Moshe Elkabets
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Angel Porgador
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
- National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva, Israel
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Abstract
Type 1 diabetes (T1D) affects millions of people worldwide and is the prevalent form of all pediatric diabetes diagnoses. T1D is recognized to have an autoimmune etiology, since failure in specific self-tolerance mechanisms triggers immune reactions towards self-antigens and causes disease onset. Among all the different immunocytes involved in T1D etiopathogenesis, a relevant role of natural killer cells (NKs) is currently emerging. NKs represent the interface between innate and adaptive immunity; they intervene in the defense against infections and present, at the same time, typical features of the adaptive immune cells, such as expansion and generation of memory cells. Several recent studies, performed both in animal models and in human diabetic patients, revealed aberrations in NK cell frequency and functionality in the peripheral blood and in damaged tissues, suggesting their possible redirection towards affected tissues. NKs oscillate from a quiescent to an activated state through a delicate balance of activating and inhibitory signals transduced via surface receptors. Further accurate investigations are needed to elucidate the exact role of NKs in T1D, in order to develop novel immune-based therapies able to reduce the disease risk or delay its onset.
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Zhang Y, Wang H, Lou X, Qu X, Gao L, Liu X, Li M, Guo H, Jiang Y. Decreased percentage of NKG2D+NK cells in patients with incident onset of Type 1 Diabetes. Clin Exp Pharmacol Physiol 2017; 44:180-190. [PMID: 27862177 DOI: 10.1111/1440-1681.12699] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 11/08/2016] [Accepted: 11/08/2016] [Indexed: 11/28/2022]
Abstract
Type 1 diabetes mellitus (T1DM) is characterized by absolute insulin deficiency owing to autoimmune destruction of the pancreatic β cells. A significant decrease in natural killer (NK) cells in peripheral blood has been observed in patients with untreated T1DM. In the present study, we aimed to explore the role of NK cells and their subsets in young T1DM patients. A total of 30 children and adolescents with untreated T1DM and 27 healthy controls (HC) were recruited in this study. Flow cytometry analysis indicated that the percentage of peripheral blood CD3-CD56+ NK cells and NK cells subsets (CD56bright, CD56dim and CD56neg), were significantly decreased in the T1DM patients compared to healthy controls. In addition, the percentage of inducible CD107a+ and IFN-γ-secreting NK cells was significantly decreased compared to HC. Interestingly, the percentage of NKG2D+ NK cells negatively correlated with the level of serum TCHOL and TG in T1DM patients. Our data indicate that decreased number and impaired function of NK cells may have a role in the pathogenesis of T1DM.
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Affiliation(s)
- Yupan Zhang
- Department of Central Laboratory, The First Hospital, Jilin University, Changchun, China.,Department of Endocrinology, Weihai Municipal Hospital, Weihai, China
| | - Haifeng Wang
- Department of Central Laboratory, The First Hospital, Jilin University, Changchun, China
| | - Xiaoqian Lou
- Department of Central Laboratory, The First Hospital, Jilin University, Changchun, China
| | - Xiaozhang Qu
- Department of Central Laboratory, The First Hospital, Jilin University, Changchun, China
| | - Lichao Gao
- Department of Central Laboratory, The First Hospital, Jilin University, Changchun, China
| | - Xiaolei Liu
- Key Laboratory of Zoonosis Research, Ministry of Education, The First Hospital, Jilin University, Changchun, China
| | - Man Li
- Department of Central Laboratory, The First Hospital, Jilin University, Changchun, China
| | - Hui Guo
- Department of Central Laboratory, The First Hospital, Jilin University, Changchun, China.,Department of Endocrinology, Weihai Municipal Hospital, Weihai, China
| | - Yanfang Jiang
- Department of Central Laboratory, The First Hospital, Jilin University, Changchun, China.,Key Laboratory of Zoonosis Research, Ministry of Education, The First Hospital, Jilin University, Changchun, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
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11
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Shalaby D, Saied M, Khater D, Abou Zeid A. The Expression of Activating Receptor Gene of Natural Killer Cells ( KLRC3) in Patients with
Type 1 Diabetes Mellitus (T1DM). Oman Med J 2017; 32:316-321. [PMID: 28804584 DOI: 10.5001/omj.2017.60] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES To identify the possible role of natural killer (NK) cells in the pathogenesis of type 1 diabetes mellitus (T1DM) through studying the expression of the KLRC3 gene, which encodes the NK cell activating receptor (NKG2E). METHODS This study was conducted at Alexandria University Children's Hospital from April to October 2015. The study was conducted with 30 newly diagnosed T1DM patients (15 males and 15 females), aged 7-13 years (10.6±1.8 years) and 20 non-diabetic subjects served as age- and sex-matched controls. The patients were further sub-divided into two groups; group I included patients who first presented with classical symptoms of DM (polyuria, polydipsia, and polyphagia) without diabetes ketoacidosis (DKA) and group II included patients who first presented with DKA. The expression of the KLRC3 gene was measured in each group using the real-time polymerase chain reaction. RESULTS KLRC3 gene expression was significantly downregulated in T1DM cases compared to healthy controls (p = 0.001). Expression was more downregulated in group I patients (p = 0.008). Moreover, there was higher mean value of glycated heamoglobin and lower C-peptide levels in group I than group II. Serum pancreatic amylase showed no significant difference between the two groups. CONCLUSIONS KLRC3 gene expression was downregulated in patients with T1DM compared to healthy controls. Downregulation of expression was greater in DKA patients compared to those who presented with classical symptoms. Expression of KLRC3 in T1DM might play a role in the pathogenesis of T1DM and could be a predictor of its severity.
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Affiliation(s)
- Dalia Shalaby
- El Raml Pediatric Hospital, Minisrty of Health, Alexandria, Egypt
| | - Marwa Saied
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Doaa Khater
- Department of Pediatrics, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Abla Abou Zeid
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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12
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Mayes K, Elsayed Z, Alhazmi A, Waters M, Alkhatib SG, Roberts M, Song C, Peterson K, Chan V, Ailaney N, Malapati P, Blevins T, Lisnić B, Dumur CI, Landry JW. BPTF inhibits NK cell activity and the abundance of natural cytotoxicity receptor co-ligands. Oncotarget 2017; 8:64344-64357. [PMID: 28969075 PMCID: PMC5610007 DOI: 10.18632/oncotarget.17834] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 04/26/2017] [Indexed: 11/25/2022] Open
Abstract
Using syngeneic BALB/c mouse breast cancer models, we show that the chromatin remodeling subunit bromodomain PHD finger transcription factor (BPTF) suppresses natural killer (NK) cell antitumor activity in the tumor microenvironment (TME). In culture, BPTF suppresses direct natural cytotoxicity receptor (NCR) mediated NK cell cytolytic activity to mouse and human cancer cell lines, demonstrating conserved functions. Blocking mouse NCR1 in vivo rescues BPTF KD tumor weights, demonstrating its importance for the control of tumor growth. We discovered that BPTF occupies heparanase (Hpse) regulatory elements, activating its expression. Increased heparanase activity results in reduced cell surface abundance of the NCR co-ligands: heparan sulfate proteoglycans (HSPGs). Using gain and loss of function approaches we show that elevated heparanase levels suppress NK cell cytolytic activity to tumor cells in culture. These results suggest that BPTF activates heparanase expression, which in turn reduces cell surface HSPGs and NCR co-ligands, inhibiting NK cell activity. Furthermore, gene expression data from human breast cancer tumors shows that elevated BPTF expression correlates with reduced antitumor immune cell signatures, supporting conserved roles for BPTF in suppressing antitumor immunity. Conditional BPTF depletion in established mouse breast tumors enhances antitumor immunity, suggesting that inhibiting BPTF could provide a novel immunotherapy.
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Affiliation(s)
- Kimberly Mayes
- The Department of Human and Molecular Genetics, Virginia Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Zeinab Elsayed
- The Department of Human and Molecular Genetics, Virginia Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Aiman Alhazmi
- The Department of Human and Molecular Genetics, Virginia Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Michael Waters
- The Department of Biochemistry, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Suehyb G Alkhatib
- The Department of Human and Molecular Genetics, Virginia Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Mark Roberts
- The Department of Human and Molecular Genetics, Virginia Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Carolyn Song
- The Department of Human and Molecular Genetics, Virginia Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Kristen Peterson
- The Department of Human and Molecular Genetics, Virginia Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Vivian Chan
- The Department of Human and Molecular Genetics, Virginia Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Nikhil Ailaney
- The Department of Human and Molecular Genetics, Virginia Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Pumoli Malapati
- The Department of Human and Molecular Genetics, Virginia Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Tana Blevins
- The Department of Pathology, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Berislav Lisnić
- The Center for Proteomics and Department for Histology and Embryology, University of Rijeka, Faculty of Medicine, 51000 Rijeka, Croatia
| | - Catherine I Dumur
- The Department of Pathology, Virginia Commonwealth University, Richmond, Virginia 23298, USA
| | - Joseph W Landry
- The Department of Human and Molecular Genetics, Virginia Institute of Molecular Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298, USA
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13
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Diab M, Glasner A, Isaacson B, Bar-On Y, Drori Y, Yamin R, Duev-Cohen A, Danziger O, Zamostiano R, Mandelboim M, Jonjic S, Bacharach E, Mandelboim O. NK-cell receptors NKp46 and NCR1 control human metapneumovirus infection. Eur J Immunol 2017; 47:692-703. [DOI: 10.1002/eji.201646756] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 12/20/2016] [Accepted: 02/08/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Mohammad Diab
- The Lautenberg Center for General and Tumor Immunology, the BioMedical Research Institute Israel-Canada of the Faculty of Medicine (IMRIC); The Hebrew University Hadassah Medical School; Jerusalem Israel
| | - Ariella Glasner
- The Lautenberg Center for General and Tumor Immunology, the BioMedical Research Institute Israel-Canada of the Faculty of Medicine (IMRIC); The Hebrew University Hadassah Medical School; Jerusalem Israel
| | - Batya Isaacson
- The Lautenberg Center for General and Tumor Immunology, the BioMedical Research Institute Israel-Canada of the Faculty of Medicine (IMRIC); The Hebrew University Hadassah Medical School; Jerusalem Israel
| | - Yotam Bar-On
- The Lautenberg Center for General and Tumor Immunology, the BioMedical Research Institute Israel-Canada of the Faculty of Medicine (IMRIC); The Hebrew University Hadassah Medical School; Jerusalem Israel
| | - Yaron Drori
- Central Virology Laboratory, Ministry of Health, Public Health Services; Chaim Sheba Medical Center, Tel-Hashomer; Ramat-Gan Israel
- Department of Epidemiology and Preventive Medicine, School of Public Health, Sackler Faculty of Medicine; Tel-Aviv University; Tel-Aviv Israel
| | - Rachel Yamin
- The Lautenberg Center for General and Tumor Immunology, the BioMedical Research Institute Israel-Canada of the Faculty of Medicine (IMRIC); The Hebrew University Hadassah Medical School; Jerusalem Israel
| | - Alexandra Duev-Cohen
- The Lautenberg Center for General and Tumor Immunology, the BioMedical Research Institute Israel-Canada of the Faculty of Medicine (IMRIC); The Hebrew University Hadassah Medical School; Jerusalem Israel
| | - Oded Danziger
- Department of Cell Research and Immunology, Faculty of Life Sciences; Tel Aviv University; Tel Aviv Israel
| | - Rachel Zamostiano
- Department of Cell Research and Immunology, Faculty of Life Sciences; Tel Aviv University; Tel Aviv Israel
| | - Michal Mandelboim
- Central Virology Laboratory, Ministry of Health, Public Health Services; Chaim Sheba Medical Center, Tel-Hashomer; Ramat-Gan Israel
- Department of Epidemiology and Preventive Medicine, School of Public Health, Sackler Faculty of Medicine; Tel-Aviv University; Tel-Aviv Israel
| | - Stipan Jonjic
- Department of Histology and Embryology, Faculty of Medicine; University of Rijeka; Rijeka Croatia
- Center for Proteomics, Faculty of Medicine; University of Rijeka; Rijeka Croatia
| | - Eran Bacharach
- Department of Cell Research and Immunology, Faculty of Life Sciences; Tel Aviv University; Tel Aviv Israel
| | - Ofer Mandelboim
- The Lautenberg Center for General and Tumor Immunology, the BioMedical Research Institute Israel-Canada of the Faculty of Medicine (IMRIC); The Hebrew University Hadassah Medical School; Jerusalem Israel
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14
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Shemer-Avni Y, Kundu K, Shemesh A, Brusilovsky M, Yossef R, Meshesha M, Solomon-Alemayehu S, Levin S, Gershoni-Yahalom O, Campbell KS, Porgador A. Expression of NKp46 Splice Variants in Nasal Lavage Following Respiratory Viral Infection: Domain 1-Negative Isoforms Predominate and Manifest Higher Activity. Front Immunol 2017; 8:161. [PMID: 28261217 PMCID: PMC5309248 DOI: 10.3389/fimmu.2017.00161] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 01/31/2017] [Indexed: 01/20/2023] Open
Abstract
The natural killer (NK) cell activating receptor NKp46/NCR1 plays a critical role in elimination of virus-infected and tumor cells. The NCR1 gene can be transcribed into five different splice variants, but the functional importance and physiological distribution of NKp46 isoforms are not yet fully understood. Here, we shed light on differential expression of NKp46 splice variants in viral respiratory tract infections and their functional difference at the cellular level. NKp46 was the most predominantly expressed natural cytotoxicity receptor in the nasal lavage of patients infected with four respiratory viruses: respiratory syncytia virus, adenovirus, human metapneumovirus, or influenza A. Expression of NKp30 was far lower and NKp44 was absent in all patients. Domain 1-negative NKp46 splice variants (i.e., NKp46 isoform d) were the predominantly expressed isoform in nasal lavage following viral infections. Using our unique anti-NKp46 mAb, D2-9A5, which recognizes the D2 extracellular domain, and a commercial anti-NKp46 mAb, 9E2, which recognizes D1 domain, allowed us to identify a small subset of NKp46 D1-negative splice variant-expressing cells within cultured human primary NK cells. This NKp46 D1-negative subset also showed higher degranulation efficiency in term of CD107a surface expression. NK-92 cell lines expressing NKp46 D1-negative and NKp46 D1-positive splice variants also showed functional differences when interacting with targets. A NKp46 D1-negative isoform-expressing NK-92 cell line showed enhanced degranulation activity. To our knowledge, we provide the first evidence showing the physiological distribution and functional importance of human NKp46 splice variants under pathological conditions.
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Affiliation(s)
- Yonat Shemer-Avni
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev , Beer Sheva , Israel
| | - Kiran Kundu
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel; National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Avishai Shemesh
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel; National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Michael Brusilovsky
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev , Beer Sheva , Israel
| | - Rami Yossef
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev , Beer Sheva , Israel
| | - Mesfin Meshesha
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev , Beer Sheva , Israel
| | - Semaria Solomon-Alemayehu
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev , Beer Sheva , Israel
| | - Shai Levin
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev , Beer Sheva , Israel
| | - Orly Gershoni-Yahalom
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev , Beer Sheva , Israel
| | - Kerry S Campbell
- Institute for Cancer Research, Fox Chase Cancer Center , Philadelphia, PA , USA
| | - Angel Porgador
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel; National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva, Israel
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15
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Elhaik Goldman S, Moshkovits I, Shemesh A, Filiba A, Tsirulsky Y, Vronov E, Shagan M, Apte RN, Benharroch DA, Karo-Atar D, Dagan R, Munitz A, Mizrachi Nebenzahl Y, Porgador A. Natural Killer Receptor 1 Dampens the Development of Allergic Eosinophilic Airway Inflammation. PLoS One 2016; 11:e0160779. [PMID: 27580126 PMCID: PMC5007051 DOI: 10.1371/journal.pone.0160779] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 07/25/2016] [Indexed: 01/08/2023] Open
Abstract
The function of NCR1 was studied in a model of experimental asthma, classified as a type 1 hypersensitivity reaction, in mice. IgE levels were significantly increased in the serum of OVA immunized NCR1 deficient (NCR1gfp/gfp) mice in comparison to OVA immunized wild type (NCR1+/+) and adjuvant immunized mice. Histological analysis of OVA immunized NCR1gfp/gfp mice revealed no preservation of the lung structure and overwhelming peribronchial and perivascular granulocytes together with mononuclear cells infiltration. OVA immunized NCR+/+ mice demonstrated preserved lung structure and peribronchial and perivascular immune cell infiltration to a lower extent than that in NCR1gfp/gfp mice. Adjuvant immunized mice demonstrated lung structure preservation and no immune cell infiltration. OVA immunization caused an increase in PAS production independently of NCR1 presence. Bronchoalveolar lavage (BAL) revealed NCR1 dependent decreased percentages of eosinophils and increased percentages of lymphocytes and macrophages following OVA immunization. In the OVA immunized NCR1gfp/gfp mice the protein levels of eosinophils' (CCL24) and Th2 CD4+ T-cells' chemoattractants (CCL17, and CCL24) in the BAL are increased in comparison with OVA immunized NCR+/+ mice. In the presence of NCR1, OVA immunization caused an increase in NK cells numbers and decreased NCR1 ligand expression on CD11c+GR1+ cells and decreased NCR1 mRNA expression in the BAL. OVA immunization resulted in significantly increased IL-13, IL-4 and CCL17 mRNA expression in NCR1+/+ and NCR1gfp/gfp mice. IL-17 and TNFα expression increased only in OVA-immunized NCR1+/+mice. IL-6 mRNA increased only in OVA immunized NCR1gfp/gfp mice. Collectively, it is demonstrated that NCR1 dampens allergic eosinophilic airway inflammation.
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Affiliation(s)
- Shirin Elhaik Goldman
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Itay Moshkovits
- Department of Clinical Microbiology and Immunology, Sackler school of medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Avishai Shemesh
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Ayelet Filiba
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Yevgeny Tsirulsky
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Elena Vronov
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Marilou Shagan
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Ron N. Apte
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - D aniel Benharroch
- Soroka University Medical Center, Department of Pathology, Bear Sheva, Israel
| | - Danielle Karo-Atar
- Department of Clinical Microbiology and Immunology, Sackler school of medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Ron Dagan
- Faculty of Health Science, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Ariel Munitz
- Department of Clinical Microbiology and Immunology, Sackler school of medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Yaffa Mizrachi Nebenzahl
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
- Department of Clinical Microbiology and Immunology, Sackler school of medicine, Tel-Aviv University, Tel Aviv, Israel
- * E-mail: ;
| | - Angel Porgador
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
- National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer Sheva, Israel
- * E-mail: ;
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16
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Kadri N, Wagner AK, Ganesan S, Kärre K, Wickström S, Johansson MH, Höglund P. Dynamic Regulation of NK Cell Responsiveness. Curr Top Microbiol Immunol 2016; 395:95-114. [PMID: 26658943 DOI: 10.1007/82_2015_485] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Natural killer (NK) cells deliver cytotoxic granules and immunomodulatory cytokines in response to transformed and virally infected cells. NK cell functions are under the control of a large number of germline-encoded receptors that recognize various ligands on target cells, but NK cells also respond to cytokines in the surrounding environment. The interaction between NK cell receptors and their ligands delivers either inhibitory or activating signals. The cytokine milieu further shapes NK cell responses, either directly or by influencing the way inhibitory or activating signals are perceived by NK cells. In this review, we discuss how NK cell function is controlled by inhibitory receptors and MHC-I molecules, how activating receptors contribute to NK cell education, and finally, how cytokines secreted by the surrounding cells affect NK cell responsiveness. Inputs at these three levels involve different cell types and are seamlessly integrated to form a functional NK cell population.
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Affiliation(s)
- Nadir Kadri
- Department of Medicine Huddinge, Center for Hematology and Regenerative Medicine (HERM), Karolinska Institutet, 141 86, Stockholm, Sweden
| | - Arnika Kathleen Wagner
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 17177, Stockholm, Sweden
| | - Sridharan Ganesan
- Department of Medicine Huddinge, Center for Hematology and Regenerative Medicine (HERM), Karolinska Institutet, 141 86, Stockholm, Sweden
| | - Klas Kärre
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 17177, Stockholm, Sweden
| | - Stina Wickström
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 17177, Stockholm, Sweden
| | - Maria H Johansson
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 17177, Stockholm, Sweden
| | - Petter Höglund
- Department of Medicine Huddinge, Center for Hematology and Regenerative Medicine (HERM), Karolinska Institutet, 141 86, Stockholm, Sweden.
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17
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Hadad U, Thauland TJ, Martinez OM, Butte MJ, Porgador A, Krams SM. NKp46 Clusters at the Immune Synapse and Regulates NK Cell Polarization. Front Immunol 2015; 6:495. [PMID: 26441997 PMCID: PMC4585260 DOI: 10.3389/fimmu.2015.00495] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 09/10/2015] [Indexed: 01/09/2023] Open
Abstract
Natural killer (NK) cells play an important role in first-line defense against tumor and virus-infected cells. The activity of NK cells is tightly regulated by a repertoire of cell surface expressed inhibitory and activating receptors. NKp46 is a major NK cell-activating receptor that is involved in the elimination of target cells. NK cells form different types of synapses that result in distinct functional outcomes: cytotoxic, inhibitory, and regulatory. Recent studies revealed that complex integration of NK receptor signaling controls cytoskeletal rearrangement and other immune synapse-related events. However, the distinct nature by which NKp46 participates in NK immunological synapse formation and function remains unknown. In this study, we determined that NKp46 forms microclusters structures at the immune synapse between NK cells and target cells. Over-expression of human NKp46 is correlated with increased accumulation of F-actin mesh at the immune synapse. Concordantly, knock-down of NKp46 in primary human NK cells decreased recruitment of F-actin to the synapse. Live cell imaging experiments showed a linear correlation between NKp46 expression and lytic granules polarization to the immune synapse. Taken together, our data suggest that NKp46 signaling directly regulates the NK lytic immune synapse from early formation to late function.
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Affiliation(s)
- Uzi Hadad
- Department of Surgery, Division of Abdominal Transplantation, Stanford University , Stanford, CA , USA ; The Shraga Segal Department of Microbiology and Immunology and Genetics, Ben-Gurion University of the Negev , Beersheba , Israel
| | - Timothy J Thauland
- Department of Pediatrics, Division of Immunology, Stanford University , Stanford, CA , USA
| | - Olivia M Martinez
- Department of Surgery, Division of Abdominal Transplantation, Stanford University , Stanford, CA , USA
| | - Manish J Butte
- Department of Pediatrics, Division of Immunology, Stanford University , Stanford, CA , USA
| | - Angel Porgador
- The Shraga Segal Department of Microbiology and Immunology and Genetics, Ben-Gurion University of the Negev , Beersheba , Israel
| | - Sheri M Krams
- Department of Surgery, Division of Abdominal Transplantation, Stanford University , Stanford, CA , USA
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