1
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Sudan R, Gilfillan S, Colonna M. Group 1 ILCs: Heterogeneity, plasticity, and transcriptional regulation. Immunol Rev 2024; 323:107-117. [PMID: 38563448 PMCID: PMC11102297 DOI: 10.1111/imr.13327] [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] [Indexed: 04/04/2024]
Abstract
Group 1 innate lymphoid cells (ILCs), comprising ILC1s and natural killer cells (NK cells), belong to a large family of developmentally related innate lymphoid cells that lack rearranged antigen-specific receptors. NK cells and ILC1s both require the transcription factor T-bet for lineage commitment but additionally rely on Eomes and Hobit, respectively, for their development and effector maturation programs. Both ILC1s and NK cells are essential for rapid responses against infections and mediate cancer immunity through production of effector cytokines and cytotoxicity mediators. ILC1s are enriched in tissues and hence generally considered tissue resident cells whereas NK cells are often considered circulatory. Despite being deemed different cell types, ILC1s and NK cells share many common features both phenotypically and functionally. Recent studies employing single cell RNA sequencing (scRNA-seq) technology have exposed previously unappreciated heterogeneity in group 1 ILCs and further broaden our understanding of these cells. Findings from these studies imply that ILC1s in different tissues and organs share a common signature but exhibit some unique characteristics, possibly stemming from tissue imprinting. Also, data from recent fate mapping studies employing Hobit, RORγt, and polychromic reporter mice have greatly advanced our understanding of the developmental and effector maturation programs of these cells. In this review, we aim to outline the fundamental traits of mouse group 1 ILCs and explore recent discoveries related to their developmental programs, phenotypic heterogeneity, plasticity, and transcriptional regulation.
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Affiliation(s)
- Raki Sudan
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Susan Gilfillan
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
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2
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Molfetta R, Petillo S, Cippitelli M, Paolini R. SUMOylation and related post-translational modifications in natural killer cell anti-cancer responses. Front Cell Dev Biol 2023; 11:1213114. [PMID: 37313439 PMCID: PMC10258607 DOI: 10.3389/fcell.2023.1213114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 05/17/2023] [Indexed: 06/15/2023] Open
Abstract
SUMOylation is a reversible modification that involves the covalent attachment of small ubiquitin-like modifier (SUMO) to target proteins, leading to changes in their localization, function, stability, and interactor profile. SUMOylation and additional related post-translational modifications have emerged as important modulators of various biological processes, including regulation of genomic stability and immune responses. Natural killer (NK) cells are innate immune cells that play a critical role in host defense against viral infections and tumors. NK cells can recognize and kill infected or transformed cells without prior sensitization, and their activity is tightly regulated by a balance of activating and inhibitory receptors. Expression of NK cell receptors as well as of their specific ligands on target cells is finely regulated during malignant transformation through the integration of different mechanisms including ubiquitin- and ubiquitin-like post-translational modifications. Our review summarizes the role of SUMOylation and other related pathways in the biology of NK cells with a special emphasis on the regulation of their response against cancer. The development of novel selective inhibitors as useful tools to potentiate NK-cell mediated killing of tumor cells is also briefly discussed.
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3
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Cannito S, Dianzani U, Parola M, Albano E, Sutti S. Inflammatory processes involved in NASH-related hepatocellular carcinoma. Biosci Rep 2023; 43:BSR20221271. [PMID: 36691794 PMCID: PMC9874450 DOI: 10.1042/bsr20221271] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/09/2022] [Accepted: 01/05/2023] [Indexed: 01/25/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the fourth leading cause of cancer-related death worldwide. In the recent years nonalcoholic fatty liver disease (NAFLD) is becoming a growing cause of HCCs and the incidence of NAFLD-related HCCs is expected to further dramatically increase by the next decade. Chronic inflammation is regarded as the driving force of NAFLD progression and a key factor in hepatic carcinogenesis. Hepatic inflammation in NAFLD results from the persistent stimulation of innate immunity in response to hepatocellular injury and gut dysbiosis as well as by the activation of adaptive immunity. However, the relative roles of innate and adaptive immunity in the processes leading to HCC are still incompletely characterized. This is due to the complex interplay between different liver cell populations, which is also strongly influenced by gut-derived bacterial products, metabolic/nutritional signals. Furthermore, carcinogenic mechanisms in NAFLD/NASH appear to involve the activation of signals mediated by hypoxia inducible factors. This review discusses recent data regarding the contribution of different inflammatory cells to NAFLD-related HCC and their possible impact on patient response to current treatments.
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Affiliation(s)
- Stefania Cannito
- Department of Clinical and Biological Sciences, Unit of Experimental Medicine and Clinical Pathology, University of Turin, Turin, Italy
| | - Umberto Dianzani
- Department of Health Sciences and Interdisciplinary Research Centre for Autoimmune Diseases, University of East Piedmont, Novara, Italy
| | - Maurizio Parola
- Department of Clinical and Biological Sciences, Unit of Experimental Medicine and Clinical Pathology, University of Turin, Turin, Italy
| | - Emanuele Albano
- Department of Health Sciences and Interdisciplinary Research Centre for Autoimmune Diseases, University of East Piedmont, Novara, Italy
| | - Salvatore Sutti
- Department of Health Sciences and Interdisciplinary Research Centre for Autoimmune Diseases, University of East Piedmont, Novara, Italy
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4
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NK Cells and Other Cytotoxic Innate Lymphocytes in Colorectal Cancer Progression and Metastasis. Int J Mol Sci 2022; 23:ijms23147859. [PMID: 35887206 PMCID: PMC9322916 DOI: 10.3390/ijms23147859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 12/16/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignancies and leading causes of cancer-related deaths worldwide. Despite its complex pathogenesis and progression, CRC represents a well-fitting example of how the immune contexture can dictate the disease outcome. The presence of cytotoxic lymphocytes, both CD8+ T cells and natural killer (NK) cells, represents a relevant prognostic factor in CRC and is associated with a better overall survival. Together with NK cells, other innate lymphocytes, namely, innate lymphoid cells (ILCs), have been found both in biopsies of CRC patients and in murine models of intestinal cancer, playing both pro- and anti-tumor activities. In particular, several type 1 innate lymphoid cells (ILC1) with cytotoxic functions have been recently described, and evidence in mice shows a role for both NK cells and ILC1 in controlling CRC metastasis. In this review, we provide an overview of the features of NK cells and the expanding spectrum of innate lymphocytes with cytotoxic functions. We also comment on both the described and the potential roles these innate lymphocytes can play during the progression of intestinal cancer leading to metastasis. Finally, we discuss recent advances in the molecular mechanisms underlying the functional regulation of cytotoxic innate lymphocytes in CRC.
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5
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Rawat P, Das A. Differential expression of disparate transcription factor regime holds the key for NK cell development and function modulation. Life Sci 2022; 297:120471. [DOI: 10.1016/j.lfs.2022.120471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 03/05/2022] [Accepted: 03/07/2022] [Indexed: 10/18/2022]
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6
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Di Censo C, Marotel M, Mattiola I, Müller L, Scarno G, Pietropaolo G, Peruzzi G, Laffranchi M, Mazej J, Hasim MS, Asif S, Russo E, Tomaipitinca L, Stabile H, Lee SH, Vian L, Gadina M, Gismondi A, Shih HY, Mikami Y, Capuano C, Bernardini G, Bonelli M, Sozzani S, Diefenbach A, Ardolino M, Santoni A, Sciumè G. Granzyme A and CD160 expression delineates ILC1 with graded functions in the mouse liver. Eur J Immunol 2021; 51:2568-2575. [PMID: 34347289 PMCID: PMC9292164 DOI: 10.1002/eji.202149209] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 06/23/2021] [Accepted: 07/30/2021] [Indexed: 12/18/2022]
Abstract
Type 1 innate lymphoid cells (ILC1) are tissue‐resident lymphocytes that provide early protection against bacterial and viral infections. Discrete transcriptional states of ILC1 have been identified in homeostatic and pathological contexts. However, whether these states delineate ILC1 with different functional properties is not completely understood. Here, we show that liver ILC1 are heterogeneous for the expression of distinct effector molecules and surface receptors, including granzyme A (GzmA) and CD160, in mice. ILC1 expressing high levels of GzmA are enriched in the liver of adult mice, and represent the main hepatic ILC1 population at birth. However, the heterogeneity of GzmA and CD160 expression in hepatic ILC1 begins perinatally and increases with age. GzmA+ ILC1 differ from NK cells for the limited homeostatic requirements of JAK/STAT signals and the transcription factor Nfil3. Moreover, by employing Rorc(γt)‐fate map (fm) reporter mice, we established that ILC3‐ILC1 plasticity contributes to delineate the heterogeneity of liver ILC1, with RORγt‐fm+ cells skewed toward a GzmA–CD160+ phenotype. Finally, we showed that ILC1 defined by the expression of GzmA and CD160 are characterized by graded cytotoxic potential and ability to produce IFN‐γ. In conclusion, our findings help deconvoluting ILC1 heterogeneity and provide evidence for functional diversification of liver ILC1.
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Affiliation(s)
- Chiara Di Censo
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Marie Marotel
- Ottawa Hospital Research Institute, Cancer Therapeutics Program, Ottawa, Ontario, Canada.,Centre for Infection, Immunity and Inflammation, University of Ottawa, Ottawa, Ontario, Canada.,Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Irene Mattiola
- Laboratory of Innate Immunity, Department of Microbiology, Infectious Diseases and Immunology, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Anna-Louisa-Karsch Strasse 2, Berlin, Germany.,Deutsches Rheuma-Forschungszentrum, Mucosal and Developmental Immunology, Berlin, Germany
| | - Lena Müller
- Division of Rheumatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Gianluca Scarno
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Giuseppe Pietropaolo
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Giovanna Peruzzi
- Center for Life Nano- & Neuro-Science, Fondazione Istituto Italiano di Tecnologia, Rome, Italy
| | - Mattia Laffranchi
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Julija Mazej
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Mohamed Shaad Hasim
- Ottawa Hospital Research Institute, Cancer Therapeutics Program, Ottawa, Ontario, Canada.,Centre for Infection, Immunity and Inflammation, University of Ottawa, Ottawa, Ontario, Canada.,Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Sara Asif
- Ottawa Hospital Research Institute, Cancer Therapeutics Program, Ottawa, Ontario, Canada.,Centre for Infection, Immunity and Inflammation, University of Ottawa, Ottawa, Ontario, Canada.,Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Eleonora Russo
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Luana Tomaipitinca
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Helena Stabile
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Seung-Hwan Lee
- Centre for Infection, Immunity and Inflammation, University of Ottawa, Ottawa, Ontario, Canada.,Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Laura Vian
- Translational Immunology Section, Office of Science and Technology, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Massimo Gadina
- Translational Immunology Section, Office of Science and Technology, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Angela Gismondi
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Han-Yu Shih
- Neuro-Immune Regulome Unit, National Eye Institute and National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | - Yohei Mikami
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Cristina Capuano
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Giovanni Bernardini
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Michael Bonelli
- Division of Rheumatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Silvano Sozzani
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy.,IRCCS Neuromed, Pozzilli, Italy
| | - Andreas Diefenbach
- Laboratory of Innate Immunity, Department of Microbiology, Infectious Diseases and Immunology, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Anna-Louisa-Karsch Strasse 2, Berlin, Germany.,Deutsches Rheuma-Forschungszentrum, Mucosal and Developmental Immunology, Berlin, Germany
| | - Michele Ardolino
- Ottawa Hospital Research Institute, Cancer Therapeutics Program, Ottawa, Ontario, Canada.,Centre for Infection, Immunity and Inflammation, University of Ottawa, Ottawa, Ontario, Canada.,Department of Biochemistry, Microbiology, and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Angela Santoni
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy.,IRCCS Neuromed, Pozzilli, Italy
| | - Giuseppe Sciumè
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
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7
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NK cell and ILC heterogeneity in colorectal cancer. New perspectives from high dimensional data. Mol Aspects Med 2021; 80:100967. [PMID: 33941383 DOI: 10.1016/j.mam.2021.100967] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/20/2021] [Accepted: 04/23/2021] [Indexed: 12/14/2022]
Abstract
Innate lymphoid cells (ILCs) and tissue-resident natural killer (NK) cells ensure immunity at environmental interfaces and help maintain barrier integrity of the intestinal tract. This wide range of innate lymphocytes is able to provide fast and potent inflammatory responses that, when deregulated, have been associated with pathogenesis of inflammatory bowel disease (IBD) and colorectal cancer (CRC). While the presence of tumor-infiltrating NK cells is generally associated with a favorable outcome in CRC patients, emerging evidence reveals distinct roles for ILCs in regulating CRC pathogenesis and progression. Advances in next generation sequencing technology, and in particular of single-cell RNA-seq approaches, along with multidimensional flow cytometry analysis, have helped to deconvolute the complexity and heterogeneity of the ILC system both in homeostatic and pathological contexts. In this review, we discuss the protective and detrimental roles of NK cells and ILCs in the pathogenesis of CRC, focusing on the phenotypic and transcriptional modifications these cells undergo during CRC development and progression.
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8
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mTORC1 and mTORC2 coordinate early NK cell development by differentially inducing E4BP4 and T-bet. Cell Death Differ 2021; 28:1900-1909. [PMID: 33462410 DOI: 10.1038/s41418-020-00715-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 11/29/2020] [Accepted: 12/16/2020] [Indexed: 12/30/2022] Open
Abstract
Natural killer (NK) cell development is a multistep process that requires a variety of signals and transcription factors. The lack of mammalian target of rapamycin (mTOR) kinase severely impairs NK cell development in mice. mTOR binds to Raptor and Rictor to form two complexes, mTORC1 and mTORC2, respectively. How mTOR and its two complexes regulate NK cell development is not fully understood. Here, we developed two methods to inactivate mTOR, Raptor, or Rictor in early stage NK cells (using CD122-Cre) or in late-stage NK cells (using Ncr1-CreTg). First, we found that when mTOR was deleted by CD122-Cre during and after NK cell commitment, NK cell development was severely impaired, while Ncr1-CreTg mediated mTOR deletion slightly affected NK cell terminal differentiation, suggesting that mTOR is essential for early NK cell differentiation. Second, we found that CD122-mediated deletion of Raptor significantly limited the differentiation of CD27+CD11b- immature NK (iNK) cell into mature NK cells. In contrast, the absence of Rictor significantly interfered with the differentiation of CD27-CD11b- early iNK cells. Third, Ncr1-mediated deletion of Raptor, rather than Rictor, moderately affected NK cell terminal differentiation. In terms of mechanism, mTORC1 mainly promotes the expression of NK cell-specific transcription factor E4 promoter-binding protein 4 (E4BP4), while both mTORC1 and mTORC2 can enhance the expression of T-bet. Therefore, mTORC1 and mTORC2 subtly coordinate NK cell development by differentially inducing E4BP4 and T-bet.
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9
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Seillet C, Brossay L, Vivier E. Natural killers or ILC1s? That is the question. Curr Opin Immunol 2020; 68:48-53. [PMID: 33069142 DOI: 10.1016/j.coi.2020.08.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 08/07/2020] [Indexed: 12/11/2022]
Abstract
Group 1 innate lymphoid cells (ILCs) comprise the natural killer (NK) cells and ILC1s. Both cells co-exist in peripheral tissues and despite effort to characterize the molecular identity and developmental pathways of ILC1s, their relationship with NK cells remains elusive. ILC1s and NK cells share many common features and analysis of ILC1s in tissues revealed a great heterogeneity and distinct transcriptional requirement of each ILC1 subsets complexifying the organization of this group. Here, we discuss whether ILC1 and NK cells can be considered as distinct lineages based on their origin, location, phenotype or transcriptional regulation. Discrimination of NK cells and ILC1s represent an important challenge to unravel the individual functions of these cells during infection and tumor immunosurveillance.
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Affiliation(s)
- Cyril Seillet
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, Victoria 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, 3010, Australia.
| | - Laurent Brossay
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University Alpert Medical School, Providence, RI, 02912, USA
| | - Eric Vivier
- Aix Marseille Univ, CNRS, INSERM, CIML, Marseille, France; Assistance Publique des Hôpitaux de Marseille, Hôpital de la Timone, Immunology, Marseille Immunopole, France; Innate Pharma, Marseille, France
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10
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Hashemi E, Malarkannan S. Tissue-Resident NK Cells: Development, Maturation, and Clinical Relevance. Cancers (Basel) 2020; 12:cancers12061553. [PMID: 32545516 PMCID: PMC7352973 DOI: 10.3390/cancers12061553] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/08/2020] [Accepted: 06/08/2020] [Indexed: 12/14/2022] Open
Abstract
Natural killer (NK) cells belong to type 1 innate lymphoid cells (ILC1) and are essential in killing infected or transformed cells. NK cells mediate their effector functions using non-clonotypic germ-line-encoded activation receptors. The utilization of non-polymorphic and conserved activating receptors promoted the conceptual dogma that NK cells are homogeneous with limited but focused immune functions. However, emerging studies reveal that NK cells are highly heterogeneous with divergent immune functions. A distinct combination of several activation and inhibitory receptors form a diverse array of NK cell subsets in both humans and mice. Importantly, one of the central factors that determine NK cell heterogeneity and their divergent functions is their tissue residency. Decades of studies provided strong support that NK cells develop in the bone marrow. However, evolving evidence supports the notion that NK cells also develop and differentiate in tissues. Here, we summarize the molecular basis, phenotypic signatures, and functions of tissue-resident NK cells and compare them with conventional NK cells.
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Affiliation(s)
- Elaheh Hashemi
- Laboratory of Molecular Immunology and Immunotherapy, Blood Research Institute, Versiti, Milwaukee, WI 53226, USA;
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Subramaniam Malarkannan
- Laboratory of Molecular Immunology and Immunotherapy, Blood Research Institute, Versiti, Milwaukee, WI 53226, USA;
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Correspondence:
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11
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Valero-Pacheco N, Beaulieu AM. Transcriptional Regulation of Mouse Tissue-Resident Natural Killer Cell Development. Front Immunol 2020; 11:309. [PMID: 32161593 PMCID: PMC7052387 DOI: 10.3389/fimmu.2020.00309] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 02/07/2020] [Indexed: 12/11/2022] Open
Abstract
Natural killer (NK) cells are cytotoxic innate lymphocytes that are well-known for their ability to kill infected or malignant cells. Beyond their roles in tumor surveillance and anti-pathogen defense, more recent studies have highlighted key roles for NK cells in a broad range of biological processes, including metabolic homeostasis, immunomodulation of T cells, contact hypersensitivity, and pregnancy. Consistent with the breadth and diversity of these functions, it is now appreciated that NK cells are a heterogeneous population, comprised of specialized and sometimes tissue-specific subsets with distinct phenotypes and effector functions. Indeed, in addition to the conventional NK cells (cNKs) that are abundant and have been well-studied in the blood and spleen, distinct subsets of tissue-resident NK cells (trNKs) and "helper" Group 1 innate lymphoid cells (ILC1s) have now been described in multiple organs and tissues, including the liver, uterus, thymus, adipose tissue, and skin, among others. The cNK, trNK, and/or helper ILC1 populations that co-exist in these various tissues exhibit both common and distinct developmental requirements, suggesting that a combination of lineage-, subset-, and tissue-specific differentiation processes may contribute to the unique functional properties of these various populations. Here, we provide an overview of the transcriptional regulatory pathways known to instruct the development and differentiation of cNK, trNK, and helper ILC1 populations in specific tissues in mice.
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Affiliation(s)
- Nuriban Valero-Pacheco
- Center for Immunity and Inflammation, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers – The State University of New Jersey, Newark, NJ, United States
- Department of Microbiology, Biochemistry, and Molecular Genetics, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers – The State University of New Jersey, Newark, NJ, United States
| | - Aimee M. Beaulieu
- Center for Immunity and Inflammation, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers – The State University of New Jersey, Newark, NJ, United States
- Department of Microbiology, Biochemistry, and Molecular Genetics, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers – The State University of New Jersey, Newark, NJ, United States
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12
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Bagadia P, Huang X, Liu TT, Murphy KM. Shared Transcriptional Control of Innate Lymphoid Cell and Dendritic Cell Development. Annu Rev Cell Dev Biol 2019; 35:381-406. [PMID: 31283378 PMCID: PMC6886469 DOI: 10.1146/annurev-cellbio-100818-125403] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Innate immunity and adaptive immunity consist of highly specialized immune lineages that depend on transcription factors for both function and development. In this review, we dissect the similarities between two innate lineages, innate lymphoid cells (ILCs) and dendritic cells (DCs), and an adaptive immune lineage, T cells. ILCs, DCs, and T cells make up four functional immune modules and interact in concert to produce a specified immune response. These three immune lineages also share transcriptional networks governing the development of each lineage, and we discuss the similarities between ILCs and DCs in this review.
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Affiliation(s)
- Prachi Bagadia
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63108, USA;
| | - Xiao Huang
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63108, USA;
| | - Tian-Tian Liu
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63108, USA;
| | - Kenneth M Murphy
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63108, USA;
- Howard Hughes Medical Institute, Washington University School of Medicine, St. Louis, Missouri 63108, USA
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13
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Di Vito C, Mikulak J, Mavilio D. On the Way to Become a Natural Killer Cell. Front Immunol 2019; 10:1812. [PMID: 31428098 PMCID: PMC6688484 DOI: 10.3389/fimmu.2019.01812] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 07/18/2019] [Indexed: 12/15/2022] Open
Abstract
Natural Killer (NK) cells are innate lymphocytes playing pivotal roles in host defense and immune-surveillance. The homeostatic modulation of germ-line encoded/non-rearranged activating and inhibitory NK cell receptors (NKRs) determines the capability of these innate lymphocytes to either spare "self" cells or to kill viral-infected, tumor-transformed and heterologous cell targets. However, despite being discovered more than 40 years ago, several aspects of NK cell biology remain unknown or are still being debated. In particular, our knowledge of human NK cell ontogenesis and differentiation is still in its infancy as the majority of our experimental evidence on this topic mainly comes from findings obtained in vitro or with animal models in vivo. Although both the generation and the maintenance of human NK cells are sustained by hematopoietic stem cells (HSCs), the precise site(s) of NK cell development are still poorly defined. Indeed, HSCs and hematopoietic precursors are localized in different anatomical compartments that also change their ontogenic commitments before and after birth as well as in aging. Currently, the main site of NK cell generation and maturation in adulthood is considered the bone marrow, where their interactions with stromal cells, cytokines, growth factors, and other soluble molecules support and drive maturation. Different sequential stages of NK cell development have been identified on the basis of the differential expression of specific markers and NKRs as well as on the acquisition of specific effector-functions. All these phenotypic and functional features are key in inducing and regulating homing, activation and tissue-residency of NK cells in different human anatomic sites, where different homeostatic mechanisms ensure a perfect balance between immune tolerance and immune-surveillance. The present review summarizes our current knowledge on human NK cell ontogenesis and on the related pathways orchestrating a proper maturation, functions, and distributions.
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Affiliation(s)
- Clara Di Vito
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Milan, Italy
| | - Joanna Mikulak
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Milan, Italy.,Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, Milan, Italy
| | - Domenico Mavilio
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Milan, Italy.,Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, Milan, Italy
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14
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Brillantes M, Beaulieu AM. Transcriptional control of natural killer cell differentiation. Immunology 2018; 156:111-119. [PMID: 30450565 DOI: 10.1111/imm.13017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/24/2018] [Accepted: 10/24/2018] [Indexed: 01/01/2023] Open
Abstract
Natural killer (NK) cells are highly specialized cytotoxic lymphocytes that provide protection against pathogens and malignant cells. They develop from common lymphoid progenitors via a multi-stage lineage commitment and differentiation process that gives rise to mature NK cells with potent cytotoxic functionality. Although generally considered cells of the innate immune system, recent studies have demonstrated that NK cells have the capacity to mount immune responses with features of adaptive immunity, including robust antigen-specific clonal-like expansion and the generation of long-lived memory cells that mediate enhanced recall responses. Here, we discuss specific transcription factors that have been shown to commonly and uniquely regulate NK cell development and effector and memory responses in experimental mouse models.
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Affiliation(s)
- Marc Brillantes
- Rutgers Graduate School of Biomedical Sciences, Rutgers - The State University of New Jersey, Newark, NJ, USA
| | - Aimee M Beaulieu
- Center for Immunity and Inflammation, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers - The State University of New Jersey, Newark, NJ, USA.,Department of Microbiology, Biochemistry, and Molecular Genetics, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers - The State University of New Jersey, Newark, NJ, USA
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15
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Liquitaya-Montiel AJ, Mendoza L. Dynamical Analysis of the Regulatory Network Controlling Natural Killer Cells Differentiation. Front Physiol 2018; 9:1029. [PMID: 30116200 PMCID: PMC6082967 DOI: 10.3389/fphys.2018.01029] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 07/11/2018] [Indexed: 12/22/2022] Open
Abstract
Many disease fighting strategies have focused on the generation of NK cells, since they constitute the main immune barrier against cancer and intracellular pathogens such as viruses. Therefore, a predictive model for the development of NK cells would constitute a useful tool to test several hypotheses regarding the production of these cells during both physiological and pathological conditions. Here, we present a boolean network model that reproduces experimental results reported on the literature regarding the progressive stages of the development of NK cells in wild-type and mutant backgrounds. The model allows for the simulation of different conditions, including extracellular micro-environment as well as the simulation of genetic alterations. It also describes how NK cell differentiation depends on a molecular regulatory network that controls the specification of lymphoid lineages, such as T and B cells, which share a common progenitor with NKs. Furthermore, the study shows that the structure of the regulatory network strongly determines the stability of the expression patterns against perturbations.
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Affiliation(s)
- Adhemar J. Liquitaya-Montiel
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
- Programa de Doctorado en Ciencias Bioquímicas, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Luis Mendoza
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
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16
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Nakano R, Ohira M, Yano T, Imaoka Y, Tanaka Y, Ohdan H. Hepatic irradiation persistently eliminates liver resident NK cells. PLoS One 2018; 13:e0198904. [PMID: 29897952 PMCID: PMC5999234 DOI: 10.1371/journal.pone.0198904] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 05/29/2018] [Indexed: 12/15/2022] Open
Abstract
Hepatic irradiation for the treatment of hepatobiliary malignancies often indirectly damages liver tissue and promotes the development of liver fibrosis. However, little is known concerning the effects of hepatic irradiation on the liver immune system, including natural killer (NK) cells. The aim of this study was therefore to investigate how hepatic irradiation influences the functions and characteristics of liver resident NK cells. An established murine hepatic irradiation model was used to examine the specific effects of hepatic irradiation on immune cell populations and metastasis. This analysis demonstrated that hepatic irradiation decreased the number of liver resident NK cells (DX5–TRAIL+), but did not affect the total NK number or proportions of NK cells in the liver or spleen. This effect was correlated with the hepatic irradiation dose. Surprisingly, the liver resident NK population had not recovered by two months after hepatic irradiation. We also found that hepatic irradiation limited the cytotoxic effects of liver-derived lymphocytes against a mouse hepatoma cell line and promoted hepatic metastases in an in vivo model, although adoptive transfer of activated NK cells could alleviate metastatic growth. Finally, we demonstrated that hepatic irradiation disrupted the development of liver-resident NK cells, even after the adoptive transfer of precursor cells from the bone marrow, liver, and spleen, suggesting that irradiation had altered the developmental environment of the liver. In summary, our data demonstrated that hepatic irradiation abolished the DX5–TRAIL+ liver-resident NK cell population and dampened antitumor activities in the liver for at least two months. Additionally, hepatic irradiation prevented differentiation of precursor cells into liver-resident NK cells.
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Affiliation(s)
- Ryosuke Nakano
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Masahiro Ohira
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
- Division of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan
- * E-mail:
| | - Takuya Yano
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yuki Imaoka
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yuka Tanaka
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
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17
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Kostrzewski T, Borg AJ, Meng Y, Filipovic I, Male V, Wack A, DiMaggio PA, Brady HJM. Multiple Levels of Control Determine How E4bp4/Nfil3 Regulates NK Cell Development. THE JOURNAL OF IMMUNOLOGY 2018; 200:1370-1381. [PMID: 29311361 DOI: 10.4049/jimmunol.1700981] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 11/25/2017] [Indexed: 01/24/2023]
Abstract
The transcription factor E4bp4/Nfil3 has been shown to have a critical role in the development of all innate lymphoid cell types including NK cells. In this study, we show that posttranslational modifications of E4bp4 by either SUMOylation or phosphorylation have profound effects on both E4bp4 function and NK cell development. We examined the activity of E4bp4 mutants lacking posttranslational modifications and found that Notch1 was a novel E4bp4 target gene. We observed that abrogation of Notch signaling impeded NK cell production and the total lack of NK cell development from E4bp4-/- progenitors was completely rescued by short exposure to Notch peptide ligands. This work reveals both novel mechanisms in NK cell development by a transcriptional network including E4bp4 with Notch, and that E4bp4 is a central hub to process extrinsic stimuli.
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Affiliation(s)
- Tomasz Kostrzewski
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Aaron J Borg
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom; and
| | - Yiran Meng
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Iva Filipovic
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Victoria Male
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Andreas Wack
- Francis Crick Institute, London NW7 1AA, United Kingdom
| | - Peter A DiMaggio
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom; and
| | - Hugh J M Brady
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom;
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18
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Seillet C, Mielke LA, Amann-Zalcenstein DB, Su S, Gao J, Almeida FF, Shi W, Ritchie ME, Naik SH, Huntington ND, Carotta S, Belz GT. Deciphering the Innate Lymphoid Cell Transcriptional Program. Cell Rep 2017; 17:436-447. [PMID: 27705792 DOI: 10.1016/j.celrep.2016.09.025] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 08/11/2016] [Accepted: 09/09/2016] [Indexed: 01/16/2023] Open
Abstract
Innate lymphoid cells (ILCs) are enriched at mucosal surfaces, where they provide immune surveillance. All ILC subsets develop from a common progenitor that gives rise to pre-committed progenitors for each of the ILC lineages. Currently, the temporal control of gene expression that guides the emergence of these progenitors is poorly understood. We used global transcriptional mapping to analyze gene expression in different ILC progenitors. We identified PD-1 to be specifically expressed in PLZF+ ILCp and revealed that the timing and order of expression of the transcription factors NFIL3, ID2, and TCF-1 was critical. Importantly, induction of ILC lineage commitment required only transient expression of NFIL3 prior to ID2 and TCF-1 expression. These findings highlight the importance of the temporal program that permits commitment of progenitors to the ILC lineage, and they expand our understanding of the core transcriptional program by identifying potential regulators of ILC development.
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Affiliation(s)
- Cyril Seillet
- The Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia.
| | - Lisa A Mielke
- The Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Daniela B Amann-Zalcenstein
- The Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Shian Su
- The Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Jerry Gao
- The Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Francisca F Almeida
- The Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Wei Shi
- The Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia; Department of Computing and Information Systems, University of Melbourne, Parkville, VIC 3010, Australia
| | - Matthew E Ritchie
- The Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Shalin H Naik
- The Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Nicholas D Huntington
- The Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia
| | - Sebastian Carotta
- The Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Boehringer-Ingelheim RCV, Doktor-Boehringer-Gasse 5-11, 1120 Vienna, Austria.
| | - Gabrielle T Belz
- The Walter and Eliza Hall Institute of Medical Research and Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia.
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19
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Sciumè G, Shih HY, Mikami Y, O'Shea JJ. Epigenomic Views of Innate Lymphoid Cells. Front Immunol 2017; 8:1579. [PMID: 29250060 PMCID: PMC5715337 DOI: 10.3389/fimmu.2017.01579] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 11/02/2017] [Indexed: 12/30/2022] Open
Abstract
The discovery of innate lymphoid cells (ILCs) with selective production of cytokines typically attributed to subsets of T helper cells forces immunologists to reassess the mechanisms by which selective effector functions arise. The parallelism between ILCs and T cells extends beyond these two cell types and comprises other innate-like T lymphocytes. Beyond the recognition of specialized effector functionalities in diverse lymphocytes, features typical of T cells, such as plasticity and memory, are also relevant for innate lymphocytes. Herein, we review what we have learned in terms of the molecular mechanisms underlying these shared functions, focusing on insights provided by next generation sequencing technologies. We review data on the role of lineage-defining- and signal-dependent transcription factors (TFs). ILC regulomes emerge developmentally whereas the much of the open chromatin regions of T cells are generated acutely, in an activation-dependent manner. And yet, these regions of open chromatin in T cells and ILCs have remarkable overlaps, suggesting that though accessibility is acquired by distinct modes, the end result is that convergent signaling pathways may be involved. Although much is left to be learned, substantial progress has been made in understanding how TFs and epigenomic status contribute to ILC biology in terms of differentiation, specification, and plasticity.
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Affiliation(s)
- Giuseppe Sciumè
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Han-Yu Shih
- Lymphocyte and Cell Biology Section, Molecular Immunology and Inflammation Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, MD, United States
| | - Yohei Mikami
- Lymphocyte and Cell Biology Section, Molecular Immunology and Inflammation Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, MD, United States
| | - John J O'Shea
- Lymphocyte and Cell Biology Section, Molecular Immunology and Inflammation Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, MD, United States
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20
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Male V, Brady HJM. Murine thymic NK cells: A case of identity. Eur J Immunol 2017; 47:797-799. [PMID: 28485520 DOI: 10.1002/eji.201747038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 04/18/2017] [Indexed: 01/27/2023]
Abstract
Just over a decade ago, it was established that NK cells in the thymus do not follow precisely the same developmental pathway as conventional NK cells that develop in the bone marrow. Subsequently, it has emerged that NK cells are one branch of a family of innate lymphoid cells (ILCs). ILC1s and thymic NK cells have, however, sufficient similarities such that questions have been raised about how distinctive each cell type is from the other. In this issue of European Journal of Immunology, Gabrielli et al. [Eur. J. Immunol. 2017. 47: 800-805] make a detailed study of the transcription factor requirements of murine thymic NK cells. They provide a valuable insight into the distinctive identity of thymic NK cells with regard to Tbet, Nfil3, Id2, and Ets1. In addition, they clarify the nature of DX5 expression on NK cells and ILC-like cells in the murine thymus.
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Affiliation(s)
- Victoria Male
- Institute of Immunity and Transplantation, UCL Medical School, London, UK
| | - Hugh J M Brady
- Department of Life Sciences, Imperial College, London, UK
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21
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Development of innate lymphoid cells. Nat Immunol 2017; 17:775-82. [PMID: 27328007 DOI: 10.1038/ni.3481] [Citation(s) in RCA: 160] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 05/04/2016] [Indexed: 12/13/2022]
Abstract
Innate lymphoid cells (ILCs) are a family of immune effector cells that have important roles in host defense, metabolic homeostasis and tissue repair but can also contribute to inflammatory diseases such as asthma and colitis. These cells can be categorized into three groups on the basis of the transcription factors that direct their function and the cytokines they produce, which parallel the effector functions of T lymphocytes. The hierarchy of cell-fate-restriction events that occur as common lymphoid progenitors become committed to each of the ILC lineages further underscores the relationship between these innate immune cells and T lymphocytes. In this Review we discuss the developmental program of ILCs and transcription factors that guide ILC lineage specification and commitment.
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22
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Erick T, Grigoryan L, Brossay L. Lacrimal Gland NK Cells Are Developmentally and Functionally Similar to Conventional NK Cells. Immunohorizons 2017; 1:2-9. [PMID: 28966997 DOI: 10.4049/immunohorizons.1700008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The murine lacrimal gland (LG), which produces crucial components of the ocular tear film, contains a population of natural killer (NK) cells. LG NK cells appear to belong to the conventional NK cell lineage, based on their cell surface receptor and transcription factor expression, absence in NFIL3-/- mice, and lack of RORγt expression during development. LG NK cells produce IFN-γ during the early stages of systemic murine cytomegalovirus (MCMV) infection. This effector response occurs in the absence of noticeable MCMV replication in the LG, indicating that LG NK cells are being activated by soluble factors. However, the magnitude of LG NK cell IFN-γ production during MCMV infection is significantly lower than spleen and liver NK cells. Adoptive transfer experiments in lymphopenic mice revealed that this hyporesponsive phenotype is tissue-specific, which indicates that that LG NK cells can produce a robust effector response.
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Affiliation(s)
- Timothy Erick
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, Rhode Island, 02912, USA
| | - Lilit Grigoryan
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, Rhode Island, 02912, USA
| | - Laurent Brossay
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, Rhode Island, 02912, USA
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23
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Adaptive NK cells can persist in patients with GATA2 mutation depleted of stem and progenitor cells. Blood 2017; 129:1927-1939. [PMID: 28209719 DOI: 10.1182/blood-2016-08-734236] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 02/02/2017] [Indexed: 11/20/2022] Open
Abstract
Heterozygous GATA2 mutation is associated with immunodeficiency, lymphedema, and myelodysplastic syndrome. Disease presentation is variable, often coinciding with loss of circulating dendritic cells, monocytes, B cells, and natural killer (NK) cells. Nonetheless, in a proportion of patients carrying GATA2 mutation, NK cells persist. We found that peripheral blood NK cells in symptomatic patients uniformly lacked expression of the transcription factor promyelocytic leukemia zinc finger (PLZF), as well as expression of intracellular signaling proteins FcεRγ, spleen tyrosine kinase (SYK), and EWS/FLI1-Activated Transcript 2 (EAT-2) in a variegated manner. Moreover, consistent with an adaptive identity, NK cells from patients with GATA2 mutation displayed altered expression of cytotoxic granule constituents and produced interferon-γ upon Fc-receptor engagement but not following combined interleukin-12 (IL-12) and IL-18 stimulation. Canonical, PLZF-expressing NK cells were retained in asymptomatic carriers of GATA2 mutation. Developmentally, GATA-binding protein-2 (GATA-2) was expressed in hematopoietic stem cells, but not in NK-cell progenitors, CD3-CD56bright, canonical, or adaptive CD3-CD56dim NK cells. Peripheral blood NK cells from individuals with GATA2 mutation proliferated normally in vitro, whereas lineage-negative progenitors displayed impaired NK-cell differentiation. In summary, adaptive NK cells can persist in patients with GATA2 mutation, even after NK-cell progenitors expire. Moreover, our data suggest that adaptive NK cells are more long-lived than canonical, immunoregulatory NK cells.
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24
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Tissue-resident natural killer cells in the livers. SCIENCE CHINA-LIFE SCIENCES 2016; 59:1218-1223. [DOI: 10.1007/s11427-016-0334-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 11/15/2016] [Indexed: 01/08/2023]
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25
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Cuff AO, Robertson FP, Stegmann KA, Pallett LJ, Maini MK, Davidson BR, Male V. Eomeshi NK Cells in Human Liver Are Long-Lived and Do Not Recirculate but Can Be Replenished from the Circulation. THE JOURNAL OF IMMUNOLOGY 2016; 197:4283-4291. [PMID: 27798170 PMCID: PMC5114885 DOI: 10.4049/jimmunol.1601424] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 09/24/2016] [Indexed: 01/22/2023]
Abstract
Human liver contains an Eomeshi population of NK cells that is not present in the blood. In this study, we show that these cells are characterized by a molecular signature that mediates their retention in the liver. By examining liver transplants where donors and recipients are HLA mismatched, we distinguish between donor liver–derived and recipient-derived leukocytes to show that Eomeslo NK cells circulate freely whereas Eomeshi NK cells are unable to leave the liver. Furthermore, Eomeshi NK cells are retained in the liver for up to 13 y. Therefore, Eomeshi NK cells are long-lived liver-resident cells. We go on to show that Eomeshi NK cells can be recruited from the circulation during adult life and that circulating Eomeslo NK cells are able to upregulate Eomes and molecules mediating liver retention under cytokine conditions similar to those in the liver. This suggests that circulating NK cells are a precursor of their liver-resident counterparts.
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Affiliation(s)
- Antonia O Cuff
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London NW3 2PF, United Kingdom; and
| | - Francis P Robertson
- Department of Surgery and Interventional Science, University College London, Royal Free Hospital, London NW3 2QG, United Kingdom
| | - Kerstin A Stegmann
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London NW3 2PF, United Kingdom; and
| | - Laura J Pallett
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London NW3 2PF, United Kingdom; and
| | - Mala K Maini
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London NW3 2PF, United Kingdom; and
| | - Brian R Davidson
- Department of Surgery and Interventional Science, University College London, Royal Free Hospital, London NW3 2QG, United Kingdom
| | - Victoria Male
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London NW3 2PF, United Kingdom; and
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26
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Erick TK, Anderson CK, Reilly EC, Wands JR, Brossay L. NFIL3 Expression Distinguishes Tissue-Resident NK Cells and Conventional NK-like Cells in the Mouse Submandibular Glands. THE JOURNAL OF IMMUNOLOGY 2016; 197:2485-91. [PMID: 27521341 DOI: 10.4049/jimmunol.1601099] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 07/17/2016] [Indexed: 12/20/2022]
Abstract
The submandibular salivary gland (SMG), a major site of persistent infection for many viruses, contains a large NK cell population. Using NFIL3-deficient mice, PLZF reporter/fate mapping mice, and mixed bone marrow chimeras, we identified two distinct populations of NK cells in the SMG. Although phenotypically unique, the main population relies on NFIL3, but not PLZF, for development and, therefore, is developmentally similar to the conventional NK cell subset. In contrast, we found that approximately one quarter of the SMG NK cells develop independently of NFIL3. Interestingly, NFIL3-independent SMG tissue-resident NK (trNK) cells are developmentally distinct from liver trNK cells. We also demonstrated that the SMG NK cell hyporesponsive phenotype during murine CMV infection is tissue specific and not cell intrinsic. In contrast, NFIL3-independent SMG trNK cells are intrinsically hyporesponsive. Altogether, our data show that the SMG tissue environment shapes a unique repertoire of NK-like cells with distinct phenotypes.
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Affiliation(s)
- Timothy K Erick
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI 02912; and
| | - Courtney K Anderson
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI 02912; and
| | - Emma C Reilly
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI 02912; and
| | - Jack R Wands
- Liver Research Center, Rhode Island Hospital and the Department of Medicine, Warren Alpert Medical School at Brown University, Providence, RI 02912
| | - Laurent Brossay
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI 02912; and
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27
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Cortez VS, Colonna M. Diversity and function of group 1 innate lymphoid cells. Immunol Lett 2016; 179:19-24. [PMID: 27394699 DOI: 10.1016/j.imlet.2016.07.005] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 07/05/2016] [Indexed: 12/17/2022]
Abstract
Innate lymphoid cells (ILCs) are a heterogeneous population of cells with diverse roles in immune responses. Three major groups of ILCs have been defined on the basis of similarity in their production of signature cytokines, developmental requirements, and phenotypic markers. Group 1 ILCs produce IFN-γ, express the T-box transcription factors (TF) T-bet and/or Eomesodermin (Eomes), group 2 ILCs secrete IL-5 and IL-13 and express the TF GATA-3, while group 3 ILCs produce IL-22 and IL-17 and express the TF RORgt. In this review, we will briefly overview each group in terms of phenotype, function and development and then focus more extensively on group 1 ILCs, expanding on their emerging diversity, their disparate functions and the differences between NK cells and ILC1.
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Affiliation(s)
- Victor S Cortez
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA.
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28
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Simonetta F, Pradier A, Roosnek E. T-bet and Eomesodermin in NK Cell Development, Maturation, and Function. Front Immunol 2016; 7:241. [PMID: 27379101 PMCID: PMC4913100 DOI: 10.3389/fimmu.2016.00241] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 06/07/2016] [Indexed: 12/31/2022] Open
Abstract
Recent reports give insights into the role of the T-box transcription factors, T-bet and Eomesodermin (Eomes), in NK cell biology. In this mini-review, we recapitulate the initial reports that delineate T-bet and Eomes as master regulators of NK cell development, maturation, and function. We discuss how T-bet and Eomes expression is regulated during NK cell development and peripheral maturation. Furthermore, we summarize the current literature on the role of T-bet and Eomes in the transcriptional regulation of NK cell function and review possible effects of T-box transcription factor anomalies during aging, infection, cancer, and after hematopoietic stem cell transplantation. We discuss how the current data argue in favor of a model of T-bet and Eomes synergy in transcriptional regulation of NK cell function and identify T-box transcription factors as potential targets for therapeutic interventions.
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Affiliation(s)
- Federico Simonetta
- Department of Medical Specialties, Division of Hematology, Geneva University Hospitals, University of Geneva , Geneva , Switzerland
| | - Amandine Pradier
- Department of Medical Specialties, Division of Hematology, Geneva University Hospitals, University of Geneva , Geneva , Switzerland
| | - Eddy Roosnek
- Department of Medical Specialties, Division of Hematology, Geneva University Hospitals, University of Geneva , Geneva , Switzerland
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29
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Abstract
Innate lymphoid cells (ILCs) are innate immune cells that provide an early source of cytokines to initiate and tailor the immune response to the type of the encountered pathogen or insult. The group 1 ILCs are comprised of conventional natural killer (cNK) cells and subsets of "unconventional NK cells," termed ILC1s. Although cNK cells and ILC1s share many features, such as certain phenotypic markers and the ability to produce IFN-γ upon activation, it is now becoming apparent that these two subsets develop from different progenitors and show unique tissue distribution and functional characteristics. Recent studies have aimed at elucidating the individual contributions of cNK cells and ILC1s during protective host responses as well as during chronic inflammation. This review provides an overview of the current knowledge of the developmental origins as well as of the phenotypic and functional characteristics of ILC1s.
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Affiliation(s)
- Anja Fuchs
- Department of Surgery, Washington University School of Medicine , St. Louis, MO , USA
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30
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Leong JW, Wagner JA, Ireland AR, Fehniger TA. Transcriptional and post-transcriptional regulation of NK cell development and function. Clin Immunol 2016; 177:60-69. [PMID: 26948928 DOI: 10.1016/j.clim.2016.03.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 10/27/2015] [Accepted: 03/02/2016] [Indexed: 12/21/2022]
Abstract
Natural killer (NK) cells are specialized innate lymphoid cells that survey against viral infections and malignancy. Numerous advances have improved our understanding of the molecular mechanisms that control NK cell development and function over the past decade. These include both studies on the regulatory effects of transcription factors and translational repression via microRNAs. In this review, we summarize our current knowledge of DNA-binding transcription factors that regulate gene expression and thereby orchestrate NK cell development and activation, with an emphasis on recent discoveries. Additionally, we highlight our understanding of how RNA-binding microRNAs fine tune the NK cell molecular program. We also underscore the large number of open questions in the field that are now being addressed using new technological approaches and genetically engineered model organisms. Ultimately, a deeper understanding of the basic molecular biology of NK cells will facilitate new strategies to manipulate NK cells for the treatment of human disease.
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Affiliation(s)
- Jeffrey W Leong
- Washington University School of Medicine, Department of Medicine, Division of Oncology, St. Louis, MO 63110, USA
| | - Julia A Wagner
- Washington University School of Medicine, Department of Medicine, Division of Oncology, St. Louis, MO 63110, USA
| | - Aaron R Ireland
- Washington University School of Medicine, Department of Medicine, Division of Oncology, St. Louis, MO 63110, USA
| | - Todd A Fehniger
- Washington University School of Medicine, Department of Medicine, Division of Oncology, St. Louis, MO 63110, USA.
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31
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Pelletier AN, Guilbault L, Guimont-Desrochers F, Hillhouse EE, Lesage S. NK Cell Proportion and Number Are Influenced by Genetic Loci on Chromosomes 8, 9, and 17. THE JOURNAL OF IMMUNOLOGY 2016; 196:2627-36. [DOI: 10.4049/jimmunol.1502284] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 01/06/2016] [Indexed: 11/19/2022]
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32
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Erick TK, Brossay L. Phenotype and functions of conventional and non-conventional NK cells. Curr Opin Immunol 2015; 38:67-74. [PMID: 26706497 DOI: 10.1016/j.coi.2015.11.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Revised: 11/26/2015] [Accepted: 11/27/2015] [Indexed: 12/18/2022]
Abstract
Here we focus on the phenotypic and functional diversity of NK cells. We give an overview of the phenotype and developmental pathways of conventional and tissue-resident NK cells. We also discuss the potential complementary functions of conventional NK cells and tissue-resident NK cells in a variety of tissues.
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Affiliation(s)
- Timothy K Erick
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI 02912, USA
| | - Laurent Brossay
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI 02912, USA.
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33
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Montaldo E, Juelke K, Romagnani C. Group 3 innate lymphoid cells (ILC3s): Origin, differentiation, and plasticity in humans and mice. Eur J Immunol 2015; 45:2171-82. [PMID: 26031799 DOI: 10.1002/eji.201545598] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 05/18/2015] [Accepted: 05/28/2015] [Indexed: 12/14/2022]
Abstract
Since their discovery, innate lymphoid cells (ILCs) have been the subject of intense research. As their name implies, ILCs are innate cells of lymphoid origin, and can be grouped into subsets based on their cytotoxic activity, cytokine profile, and the transcriptional requirements during ILC differentiation. The main ILC groups are "killer" ILCs, comprising NK cells, and "helper-like" ILCs (including ILC1s, ILC2s, and ILC3s). This review examines the origin, differentiation stages, and plasticity of murine and human ILC3s. ILC3s express the retinoic acid receptor (RAR) related orphan receptor RORγt and the signature cytokines IL-22 and IL-17. Fetal ILC3s or lymphoid tissue inducer cells are required for lymphoid organogenesis, while postnatally developing ILC3s are important for the generation of intestinal cryptopatches and isolated lymphoid follicles as well as for the defence against pathogens and epithelial homeostasis. Here, we discuss the transcription factors and exogenous signals (including cytokines, nutrients and cell-to-cell interaction) that drive ILC3 lineage commitment and acquisition of their distinctive effector program.
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Affiliation(s)
| | - Kerstin Juelke
- Innate Immunity, Deutsches Rheuma Forschungszentrum (DRFZ) Berlin, Leibniz-Gemeinschaft, Berlin, Germany
| | - Chiara Romagnani
- Innate Immunity, Deutsches Rheuma Forschungszentrum (DRFZ) Berlin, Leibniz-Gemeinschaft, Berlin, Germany
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34
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Peng H, Tian Z. Re-examining the origin and function of liver-resident NK cells. Trends Immunol 2015; 36:293-9. [PMID: 25846402 DOI: 10.1016/j.it.2015.03.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 03/01/2015] [Accepted: 03/12/2015] [Indexed: 01/01/2023]
Abstract
Recent studies have identified a population of liver-resident innate lymphoid cells (ILCs) that, based on the expression of certain phenotypic markers, were termed 'liver-resident NK cells' and considered to be a new subset of conventional natural killer (cNK) cells. However, different transcriptional networks control the development of liver-resident NK cells and cNK cells and, furthermore, these cells exhibit features that characterize mucosal ILC1s. Here, we review findings providing insight into the origin, phenotype, and function of liver-resident NK cells, and discuss these in the context of the current understanding of lineage relations of ILC subsets. We propose that the similarities between liver-resident NK cells and mucosal ILC1s should be considered when revising the categorization framework for these cells, and discuss implications of this revision for other tissue-specific NK cells.
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Affiliation(s)
- Hui Peng
- Institute of Immunology and CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui 230027, China
| | - Zhigang Tian
- Institute of Immunology and CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center, University of Science & Technology of China, Hefei, Anhui 230027, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China.
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35
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Xu W, Domingues RG, Fonseca-Pereira D, Ferreira M, Ribeiro H, Lopez-Lastra S, Motomura Y, Moreira-Santos L, Bihl F, Braud V, Kee B, Brady H, Coles MC, Vosshenrich C, Kubo M, Di Santo JP, Veiga-Fernandes H. NFIL3 orchestrates the emergence of common helper innate lymphoid cell precursors. Cell Rep 2015; 10:2043-54. [PMID: 25801035 DOI: 10.1016/j.celrep.2015.02.057] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 01/08/2015] [Accepted: 02/23/2015] [Indexed: 12/17/2022] Open
Abstract
Innate lymphoid cells (ILCs) are a family of effectors that originate from a common innate lymphoid cell progenitor. However, the transcriptional program that sets the identity of the ILC lineage remains elusive. Here, we show that NFIL3 is a critical regulator of the common helper-like innate lymphoid cell progenitor (CHILP). Cell-intrinsic Nfil3 ablation led to variably impaired development of fetal and adult ILC subsets. Conditional gene targeting demonstrated that NFIL3 exerted its function prior to ILC subset commitment. Accordingly, NFIL3 ablation resulted in loss of ID2(+) CHILP and PLZF(+) ILC progenitors. Nfil3 expression in lymphoid progenitors was under the control of the mesenchyme-derived hematopoietin IL-7, and NFIL3 exerted its function via direct Id2 regulation in the CHILP. Moreover, ectopic Id2 expression in Nfil3-null precursors rescued defective ILC lineage development in vivo. Our data establish NFIL3 as a key regulator of common helper-like ILC progenitors as they emerge during early lymphopoiesis.
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Affiliation(s)
- Wei Xu
- Innate Immunity Unit, Inserm U668, Institut Pasteur, 25 Rue du Docteur Roux, 75724 Paris, France
| | - Rita G Domingues
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Av. Prof. Egas Moniz, Edifício Egas Moniz, 1649-028 Lisboa, Portugal
| | - Diogo Fonseca-Pereira
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Av. Prof. Egas Moniz, Edifício Egas Moniz, 1649-028 Lisboa, Portugal
| | - Manuela Ferreira
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Av. Prof. Egas Moniz, Edifício Egas Moniz, 1649-028 Lisboa, Portugal
| | - Hélder Ribeiro
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Av. Prof. Egas Moniz, Edifício Egas Moniz, 1649-028 Lisboa, Portugal
| | - Silvia Lopez-Lastra
- Innate Immunity Unit, Inserm U668, Institut Pasteur, 25 Rue du Docteur Roux, 75724 Paris, France
| | - Yasutaka Motomura
- Laboratory for Cytokine Regulation, Research Center for Integrative Medical Science (IMS), RIKEN Yokohama Institute, Suehiro-cho 1-7-22, Tsurumi, Yokohama, Kanagawa 230-0045, Japan
| | - Lara Moreira-Santos
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Av. Prof. Egas Moniz, Edifício Egas Moniz, 1649-028 Lisboa, Portugal
| | - Franck Bihl
- Centre National de la Recherche Scientifique - UMR 7275 Institut de Pharmacologie Moléculaire et Cellulaire, 660 Route des Luciole, 06560 Valbonne, France
| | - Véronique Braud
- Centre National de la Recherche Scientifique - UMR 7275 Institut de Pharmacologie Moléculaire et Cellulaire, 660 Route des Luciole, 06560 Valbonne, France
| | - Barbara Kee
- Department of Pathology, University of Chicago, Chicago, IL 60637, USA
| | - Hugh Brady
- Department of Life Sciences, Imperial College, London SW7 2AZ, UK
| | - Mark C Coles
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York YO10 5DD, UK
| | - Christian Vosshenrich
- Innate Immunity Unit, Inserm U668, Institut Pasteur, 25 Rue du Docteur Roux, 75724 Paris, France
| | - Masato Kubo
- Laboratory for Cytokine Regulation, Research Center for Integrative Medical Science (IMS), RIKEN Yokohama Institute, Suehiro-cho 1-7-22, Tsurumi, Yokohama, Kanagawa 230-0045, Japan; Division of Molecular Pathology, Research Institute for Biomedical Science, Tokyo University of Science, Chiba 278-0022, Japan
| | - James P Di Santo
- Innate Immunity Unit, Inserm U668, Institut Pasteur, 25 Rue du Docteur Roux, 75724 Paris, France.
| | - Henrique Veiga-Fernandes
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Av. Prof. Egas Moniz, Edifício Egas Moniz, 1649-028 Lisboa, Portugal.
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36
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Abstract
The lymphocyte family has expanded significantly in recent years to include not only the adaptive lymphocytes (T cells, B cells) and NK cells, but also several additional innate lymphoid cell (ILC) types. ILCs lack clonally distributed antigen receptors characteristic of adaptive lymphocytes and instead respond exclusively to signaling via germline-encoded receptors. ILCs resemble T cells more closely than any other leukocyte lineage at the transcriptome level and express many elements of the core T cell transcriptional program, including Notch, Gata3, Tcf7, and Bcl11b. We present our current understanding of the shared and distinct transcriptional regulatory mechanisms involved in the development of adaptive T lymphocytes and closely related ILCs. We discuss the possibility that a core set of transcriptional regulators common to ILCs and T cells establish enhancers that enable implementation of closely aligned effector pathways. Studies of the transcriptional regulation of lymphopoiesis will support the development of novel therapeutic approaches to correct early lymphoid developmental defects and aberrant lymphocyte function.
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Affiliation(s)
- Maria Elena De Obaldia
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104
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37
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Yang M, Li D, Chang Z, Yang Z, Tian Z, Dong Z. PDK1 orchestrates early NK cell development through induction of E4BP4 expression and maintenance of IL-15 responsiveness. ACTA ACUST UNITED AC 2015; 212:253-65. [PMID: 25624444 PMCID: PMC4322053 DOI: 10.1084/jem.20141703] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Yang et al. provide new mechanistic insight into the role of kinase PDK1 in early NK cell development. Genetic deletion of PDK1 in mice led to a severe loss of NK cells and impaired antitumor activity in vivo. Their results indicate that PDK1 acts as a regulator of IL-15 signaling to induce expression of the circadian protein E4BP4, also modulating CD122 upregulation. E4BP4, a circadian protein, is indispensable for NK cell development. It remains largely unknown which signal is required to induce E4BP4 expression and what effects it has during NK cell differentiation. Here, we reveal that PDK1, a kinase upstream of mTOR, connects IL-15 signaling to E4BP4. Early deletion of PDK1 caused a severe loss of NK cells and compromised antitumor activity in vivo. PDK1-deficient NK cells displayed much weaker IL-15–induced mTOR activation and E4BP4 induction, as well as remarkable reduction in CD122, a receptor subunit specifying NK cell responsiveness to IL-15. The phenotypes were partially reversible by ectopic expression of E4BP4 or bypassed activation of mTOR. We also determined that PDK1-mediated metabolic signaling was dispensable for NK cell terminal maturation and survival. Thus, we identify a role for PDK1 signaling as a key mediator in regulating E4BP4 expression during early NK cell development. Our findings underscore the importance of IL-15 self-responsiveness through a positive feedback loop that involves PDK1–mTOR–E4BP4–CD122 signaling.
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Affiliation(s)
- Meixiang Yang
- School of Medicine, and Center of Animal Facility, Tsinghua University, Beijing 100086, China
| | - Dan Li
- School of Medicine, and Center of Animal Facility, Tsinghua University, Beijing 100086, China
| | - Zai Chang
- School of Medicine, and Center of Animal Facility, Tsinghua University, Beijing 100086, China
| | - Zhongzhou Yang
- Ministry of Education Key Laboratory of Model Animal for Disease Study, Model Animal Research Center, Nanjing Biomedical Research Institute, Nanjing University, Nanjing 230032, China
| | - Zhigang Tian
- School of Life Sciences, University of Sciences and Technology of China, Hefei 230026, China
| | - Zhongjun Dong
- School of Medicine, and Center of Animal Facility, Tsinghua University, Beijing 100086, China
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38
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Cortez VS, Robinette ML, Colonna M. Innate lymphoid cells: new insights into function and development. Curr Opin Immunol 2015; 32:71-7. [PMID: 25615701 PMCID: PMC4648536 DOI: 10.1016/j.coi.2015.01.004] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 01/03/2015] [Accepted: 01/06/2015] [Indexed: 02/07/2023]
Abstract
Here, we illustrate the complexity of ILC subsets, we discuss novel functions, focusing on emerging ILCs crosstalk with other immune cells and the microbiota. Furthermore, we highlight recent insights into the development of ILCs, the common pathways they share as well as points of divergence between ILC groups and subsets.
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Affiliation(s)
- Victor S Cortez
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63018, United States
| | - Michelle L Robinette
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63018, United States
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63018, United States.
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39
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Seillet C, Belz GT, Huntington ND. Development, Homeostasis, and Heterogeneity of NK Cells and ILC1. Curr Top Microbiol Immunol 2015; 395:37-61. [PMID: 26305047 DOI: 10.1007/82_2015_474] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Natural killer (NK) cells are a population of cytotoxic innate lymphocytes that evolved prior to their adaptive counterparts and constitute one of the first lines of defense against infected or mutated cells. NK cells are rapidly activated, expressing an array of germ-line encoded receptors that allow them to scan for protein irregularities on cells and kill those deemed "altered-self." NK cells rapidly produce a broad range of cytokines and chemokines following activation by virus, bacterial, or parasitic infection and are thus key in orchestrating inflammation. NK cells have previously been viewed to represent a relatively homogeneous group of IFN-γ-producing cells that express the surface markers NK1.1 and natural killer cell p46-related protein (NKp46 or NCR1 encoded by Ncr1) and depend on the transcription factor T-bet for their development. Recently, a second subset of T-bet-dependent innate cells, the group 1 innate lymphoid cells (ILC1), has been discovered which share many attributes of conventional NK (cNK) cells. Despite the similarities between ILC1 and cNK cells , they differ in several important aspects including their localization, transcriptional regulation, and phenotype suggesting each subset has distinct origins and functions in immune responses. Previously, the ability to detect and spontaneously kill cells that exhibit "altered-self" which is central to tumor and viral immunity has been thought to be an attribute restricted solely to cNK cells. The identification of ILC1 challenges this notion and suggests that key contributions from ILC1 may have gone unrecognized. Thus, understanding the different rules that govern the behavior of ILC1 and cNK cells in immune responses may potentially open unexpected doorways to uncover novel strategies to manipulate these cells in treating disease. Here, we review recent advances in our understanding of peripheral cNK cell and ILC1 heterogeneity in terms of their development, phenotype, homeostasis, and effector functions.
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Affiliation(s)
- Cyril Seillet
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia. .,Department of Medical Biology, University of Melbourne, Melbourne, VIC, 3010, Australia.
| | - Gabrielle T Belz
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia. .,Department of Medical Biology, University of Melbourne, Melbourne, VIC, 3010, Australia.
| | - Nicholas D Huntington
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC, 3052, Australia. .,Department of Medical Biology, University of Melbourne, Melbourne, VIC, 3010, Australia.
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40
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Abstract
Natural killer (NK) cells are innate lymphocytes that survey the environment and protect the host from infected and cancerous cells. As their name implies, NK cells represent an early line of defense during pathogen invasion by directly killing infected cells and secreting inflammatory cytokines. Although the function of NK cells was first described more than four decades ago, the development of this cytotoxic lineage is not well understood. In recent years, we have begun to identify specific transcription factors that control each stage of development and maturation, from ontogeny of the NK cell progenitor to the effector functions of activated NK cells in peripheral organs. This chapter highlights the transcription factors that are unique to NK cells, or shared between NK cells and other hematopoietic cell lineages, but govern the biology of this cytolytic lymphocyte.
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Affiliation(s)
- Joseph C Sun
- Memorial Sloan Kettering Cancer Center, Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, 408 East 69th Street, ZRC-1402, New York, NY, 10065, USA.
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41
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Diefenbach A, Colonna M, Koyasu S. Development, differentiation, and diversity of innate lymphoid cells. Immunity 2014; 41:354-365. [PMID: 25238093 DOI: 10.1016/j.immuni.2014.09.005] [Citation(s) in RCA: 427] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Indexed: 01/11/2023]
Abstract
Recent years have witnessed the discovery of an unprecedented complexity in innate lymphocyte lineages, now collectively referred to as innate lymphoid cells (ILCs). ILCs are preferentially located at barrier surfaces and are important for protection against pathogens and for the maintenance of organ homeostasis. Inappropriate activation of ILCs has been linked to the pathogenesis of inflammatory and autoimmune disorders. Recent evidence suggests that ILCs can be grouped into two separate lineages, cytotoxic ILCs represented by conventional natural killer (cNK) cells and cytokine-producing helper-like ILCs (i.e., ILC1s, ILC2s, ILC3s). We will focus here on current work in humans and mice that has identified core transcriptional circuitry required for the commitment of lymphoid progenitors to the ILC lineage. The striking similarities in transcriptional control of ILC and T cell lineages reveal important insights into the evolution of transcriptional programs required to protect multicellular organisms against infections and to fortify barrier surfaces.
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Affiliation(s)
- Andreas Diefenbach
- Research Centre for Immunology and Immunotherapy, University of Mainz Medical Centre, Obere Zahlbacher Strasse 67, 55131 Mainz, Germany; Institute of Medical Microbiology and Hygiene, University of Mainz Medical Centre, Obere Zahlbacher Strasse 67, 55131 Mainz, Germany.
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, 660 S. Euclid, St. Louis, MO 63110, USA
| | - Shigeo Koyasu
- Laboratory for Immune Cell Systems, RIKEN Research Center for Integrative Medical Sciences (IMS), 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan; Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
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42
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Holmes ML, Huntington ND, Thong RPL, Brady J, Hayakawa Y, Andoniou CE, Fleming P, Shi W, Smyth GK, Degli-Esposti MA, Belz GT, Kallies A, Carotta S, Smyth MJ, Nutt SL. Peripheral natural killer cell maturation depends on the transcription factor Aiolos. EMBO J 2014; 33:2721-34. [PMID: 25319415 DOI: 10.15252/embj.201487900] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Natural killer (NK) cells are an innate lymphoid cell lineage characterized by their capacity to provide rapid effector functions, including cytokine production and cytotoxicity. Here, we identify the Ikaros family member, Aiolos, as a regulator of NK-cell maturation. Aiolos expression is initiated at the point of lineage commitment and maintained throughout NK-cell ontogeny. Analysis of cell surface markers representative of distinct stages of peripheral NK-cell maturation revealed that Aiolos was required for the maturation in the spleen of CD11b(high)CD27(-) NK cells. The differentiation block was intrinsic to the NK-cell lineage and resembled that found in mice lacking either T-bet or Blimp1; however, genetic analysis revealed that Aiolos acted independently of all other known regulators of NK-cell differentiation. NK cells lacking Aiolos were strongly hyper-reactive to a variety of NK-cell-mediated tumor models, yet impaired in controlling viral infection, suggesting a regulatory function for CD27(-) NK cells in balancing these two arms of the immune response. These data place Aiolos in the emerging gene regulatory network controlling NK-cell maturation and function.
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Affiliation(s)
- Melissa L Holmes
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia
| | - Nicholas D Huntington
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Rebecca P L Thong
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia
| | - Jason Brady
- Cancer Immunology Program, The Peter MacCallum Cancer Centre, East Melbourne, Vic., Australia
| | - Yoshihiro Hayakawa
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Christopher E Andoniou
- Immunology and Virology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Nedlands, WA, Australia Centre for Experimental Immunology, Lions Eye Institute, Nedlands, WA, Australia
| | - Peter Fleming
- Immunology and Virology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Nedlands, WA, Australia Centre for Experimental Immunology, Lions Eye Institute, Nedlands, WA, Australia
| | - Wei Shi
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia Department of Computing and Information Systems, University of Melbourne, Parkville, Vic., Australia
| | - Gordon K Smyth
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia The Department of Mathematics and Statistics, University of Melbourne, Parkville, Vic., Australia
| | - Mariapia A Degli-Esposti
- Immunology and Virology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Nedlands, WA, Australia Centre for Experimental Immunology, Lions Eye Institute, Nedlands, WA, Australia
| | - Gabrielle T Belz
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Axel Kallies
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Sebastian Carotta
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
| | - Mark J Smyth
- QIMR Berghofer Medical Research Institute, Herston, Qld, Australia School of Medicine, University of Queensland, Herston, Qld, Australia
| | - Stephen L Nutt
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Vic., Australia Department of Medical Biology, The University of Melbourne, Parkville, Vic., Australia
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Yu X, Wang Y, Deng M, Li Y, Ruhn KA, Zhang CC, Hooper LV. The basic leucine zipper transcription factor NFIL3 directs the development of a common innate lymphoid cell precursor. eLife 2014; 3. [PMID: 25310240 PMCID: PMC4356142 DOI: 10.7554/elife.04406] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 10/10/2014] [Indexed: 12/21/2022] Open
Abstract
Innate lymphoid cells (ILCs) are recently identified lymphocytes that limit infection and promote tissue repair at mucosal surfaces. However, the pathways underlying ILC development remain unclear. Here we show that the transcription factor NFIL3 directs the development of a committed bone marrow precursor that differentiates into all known ILC lineages. NFIL3 was required in the common lymphoid progenitor (CLP), and was essential for the differentiation of αLP, a bone marrow cell population that gives rise to all known ILC lineages. Clonal differentiation studies revealed that CXCR6(+) cells within the αLP population differentiate into all ILC lineages but not T- and B-cells. We further show that NFIL3 governs ILC development by directly regulating expression of the transcription factor TOX. These findings establish that NFIL3 directs the differentiation of a committed ILC precursor that gives rise to all ILC lineages and provide insight into the defining role of NFIL3 in ILC development.
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Affiliation(s)
- Xiaofei Yu
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States
| | - Yuhao Wang
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States
| | - Mi Deng
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, United States
| | - Yun Li
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States
| | - Kelly A Ruhn
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States
| | - Cheng Cheng Zhang
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, United States
| | - Lora V Hooper
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, United States
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Shih HY, Sciumè G, Poholek AC, Vahedi G, Hirahara K, Villarino AV, Bonelli M, Bosselut R, Kanno Y, Muljo SA, O'Shea JJ. Transcriptional and epigenetic networks of helper T and innate lymphoid cells. Immunol Rev 2014; 261:23-49. [PMID: 25123275 PMCID: PMC4321863 DOI: 10.1111/imr.12208] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The discovery of the specification of CD4(+) helper T cells to discrete effector 'lineages' represented a watershed event in conceptualizing mechanisms of host defense and immunoregulation. However, our appreciation for the actual complexity of helper T-cell subsets continues unabated. Just as the Sami language of Scandinavia has 1000 different words for reindeer, immunologists recognize the range of fates available for a CD4(+) T cell is numerous and may be underestimated. Added to the crowded scene for helper T-cell subsets is the continuously growing family of innate lymphoid cells (ILCs), endowed with common effector responses and the previously defined 'master regulators' for CD4(+) helper T-cell subsets are also shared by ILC subsets. Within the context of this extraordinary complexity are concomitant advances in the understanding of transcriptomes and epigenomes. So what do terms like 'lineage commitment' and helper T-cell 'specification' mean in the early 21st century? How do we put all of this together in a coherent conceptual framework? It would be arrogant to assume that we have a sophisticated enough understanding to seriously answer these questions. Instead, we review the current status of the flexibility of helper T-cell responses in relation to their genetic regulatory networks and epigenetic landscapes. Recent data have provided major surprises as to what master regulators can or cannot do, how they interact with other transcription factors and impact global genome-wide changes, and how all these factors come together to influence helper cell function.
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Affiliation(s)
- Han-Yu Shih
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis, and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA
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NK cells in mucosal defense against infection. BIOMED RESEARCH INTERNATIONAL 2014; 2014:413982. [PMID: 25197644 PMCID: PMC4150440 DOI: 10.1155/2014/413982] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 07/31/2014] [Indexed: 01/06/2023]
Abstract
Conventional natural killer cells (NK cells) provide continual surveillance for cancer and rapid responses to infection. They develop in the bone marrow, emerge as either NK precursor cells, immature, or mature cells, and disperse throughout the body. In the periphery NK cells provide critical defense against pathogens and cancer and are noted to develop features of adaptive immune responses. In the tightly regulated and dynamic mucosal tissues, they set up residency via unknown mechanisms and from sources that are yet to be defined. Once resident, they appear to have the ability to functionally mature dependent on the mucosal tissue microenvironment. Mucosal NK cells play a pivotal role in early protection through their cytolytic function and IFNγ production against bacteria, fungi, viruses, and parasitic infections. This review presents what is known about NK cell development and phenotypes of mucosal tissue resident conventional NK cells. The question of how they come to reside in their tissues and published data on their function against pathogens during mucosal infection are discussed. Dissecting major questions highlighted in this review will be important to the further understanding of NK cell homing and functional diversity and improve rational design of NK cell based therapies against mucosal infection.
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Cella M, Miller H, Song C. Beyond NK cells: the expanding universe of innate lymphoid cells. Front Immunol 2014; 5:282. [PMID: 24982658 PMCID: PMC4058828 DOI: 10.3389/fimmu.2014.00282] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 05/30/2014] [Indexed: 12/20/2022] Open
Abstract
For a long time, natural killer (NK) cells were thought to be the only innate immune lymphoid population capable of responding to invading pathogens under the influence of changing environmental cues. In the last few years, an increasing amount of evidence has shown that a number of different innate lymphoid cell (ILC) populations found at mucosal sites rapidly respond to locally produced cytokines in order to establish or maintain homeostasis. These ILC populations closely mirror the phenotype of adaptive T helper subsets in their repertoire of secreted soluble factors. Early in the immune response, ILCs are responsible for setting the stage to mount an adaptive T cell response that is appropriate for the incoming insult. Here, we review the diversity of ILC subsets and discuss similarities and differences between ILCs and NK cells in function and key transcriptional factors required for their development.
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Affiliation(s)
- Marina Cella
- Department of Pathology and Immunology, Washington University School of Medicine , St. Louis, MO , USA
| | - Hannah Miller
- Department of Pathology and Immunology, Washington University School of Medicine , St. Louis, MO , USA
| | - Christina Song
- Department of Pathology and Immunology, Washington University School of Medicine , St. Louis, MO , USA
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Cortez VS, Fuchs A, Cella M, Gilfillan S, Colonna M. Cutting edge: Salivary gland NK cells develop independently of Nfil3 in steady-state. THE JOURNAL OF IMMUNOLOGY 2014; 192:4487-91. [PMID: 24740507 DOI: 10.4049/jimmunol.1303469] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Nfil3 is viewed as an obligate transcription factor for NK cell development. However, mouse CMV (MCMV) infection recently was shown to bypass the requirement for Nfil3 by inducing the appearance of NK cells that express the MCMV-specific receptor Ly49H. Thus, signals transmitted by Ly49H and proinflammatory cytokines are sufficient to promote NK cell differentiation in the absence of Nfil3. In this study, we report that salivary gland (SG) NK cells develop in an Nfil3-independent fashion in the steady-state in the absence of MCMV or any infection. Moreover, we show that SG NK cells have an integrin profile reminiscent of tissue-resident lymphocytes and express TRAIL for killing target cells. These results demonstrate that SG NK cells, although related to conventional NK cells, are a distinct subset of innate lymphoid cells that deviates from the conventional developmental pathway, perhaps under the influence of tissue-specific factors.
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Affiliation(s)
- Victor S Cortez
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
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Seillet C, Huntington ND, Gangatirkar P, Axelsson E, Minnich M, Brady HJM, Busslinger M, Smyth MJ, Belz GT, Carotta S. Differential requirement for Nfil3 during NK cell development. THE JOURNAL OF IMMUNOLOGY 2014; 192:2667-76. [PMID: 24532575 DOI: 10.4049/jimmunol.1302605] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
NK cells can be grouped into distinct subsets that are localized to different organs and exhibit a different capacity to secrete cytokines and mediate cytotoxicity. Despite these hallmarks that reflect tissue-specific specialization in NK cells, little is known about the factors that control the development of these distinct subsets. The basic leucine zipper transcription factor Nfil3 (E4bp4) is essential for bone marrow-derived NK cell development, but it is not clear whether Nfil3 is equally important for all NK cell subsets or how it induces NK lineage commitment. In this article, we show that Nfil3 is required for the formation of Eomes-expressing NK cells, including conventional medullary and thymic NK cells, whereas TRAIL(+) Eomes(-) NK cells develop independently of Nfil3. Loss of Nfil3 during the development of bone marrow-derived NK cells resulted in reduced expression of Eomes and, conversely, restoration of Eomes expression in Nfil3(-/-) progenitors rescued NK cell development and maturation. Collectively, these findings demonstrate that Nfil3 drives the formation of mature NK cells by inducing Eomes expression and reveal the differential requirements of NK cell subsets for Nfil3.
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Affiliation(s)
- Cyril Seillet
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia
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