1
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Tougaard P, Pérez MR, Steels W, Huysentruyt J, Verstraeten B, Vetters J, Divert T, Gonçalves A, Roelandt R, Takahashi N, Janssens S, Buus TB, Taghon T, Leclercq G, Vandenabeele P. Type 1 immunity enables neonatal thymic ILC1 production. Sci Adv 2024; 10:eadh5520. [PMID: 38232171 DOI: 10.1126/sciadv.adh5520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 12/19/2023] [Indexed: 01/19/2024]
Abstract
Acute thymic atrophy occurs following type 1 inflammatory conditions such as viral infection and sepsis, resulting in cell death and disruption of T cell development. However, the impact type 1 immunity has on thymic-resident innate lymphoid cells (ILCs) remains unclear. Single-cell RNA sequencing revealed neonatal thymic-resident type 1 ILCs (ILC1s) as a unique and immature subset compared to ILC1s in other primary lymphoid organs. Culturing murine neonatal thymic lobes with the type 1 cytokines interleukin-12 (IL-12) and IL-18 resulted in a rapid expansion and thymic egress of KLRG1+CXCR6+ cytotoxic ILC1s. Live imaging showed the subcapsular thymic localization and exit of ILC1s following IL-12 + IL-18 stimulation. Similarly, murine cytomegalovirus infection in neonates resulted in thymic atrophy and subcapsular localization of thymic-resident ILC1s. Neonatal thymic grafting revealed that type 1 inflammation enhances the homing of cytokine-producing thymus-derived ILC1s to the liver and peritoneal cavity. Together, we show that type 1 immunity promotes the expansion and peripheral homing of thymic-derived ILC1s.
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Affiliation(s)
- Peter Tougaard
- Cell death and Inflammation Unit, VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Mario R Pérez
- Cell death and Inflammation Unit, VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Wolf Steels
- Cell death and Inflammation Unit, VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Jelle Huysentruyt
- Cell death and Inflammation Unit, VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Bruno Verstraeten
- Cell death and Inflammation Unit, VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Jessica Vetters
- Laboratory for ER Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Tatyana Divert
- Cell death and Inflammation Unit, VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Amanda Gonçalves
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
- VIB BioImaging Core, VIB-UGent Center for Inflammation Research, Technologiepark-Zwijnaarde 71, Ghent 9052, Belgium
| | - Ria Roelandt
- Cell death and Inflammation Unit, VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Nozomi Takahashi
- Cell death and Inflammation Unit, VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Sophie Janssens
- Laboratory for ER Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Terkild B Buus
- LEO Foundation Skin Immunology Research Center, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Tom Taghon
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Georges Leclercq
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Peter Vandenabeele
- Cell death and Inflammation Unit, VIB-UGent Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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2
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Pille M, Avila J, Sanchez GS, Goetgeluk G, De Munter S, Jansen H, Billiet L, Weening K, Xue H, Bonte S, Ingels J, De Cock L, Pascal E, Deseins L, Kerre T, Taghon T, Leclercq G, Vermijlen D, Davis B, Vandekerckhove B. The Wiskott-Aldrich syndrome protein is required for positive selection during T-cell lineage differentiation. Front Immunol 2023; 14:1188099. [PMID: 37350958 PMCID: PMC10282776 DOI: 10.3389/fimmu.2023.1188099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 05/15/2023] [Indexed: 06/24/2023] Open
Abstract
The Wiskott-Aldrich syndrome (WAS) is an X-linked primary immune deficiency caused by a mutation in the WAS gene. This leads to altered or absent WAS protein (WASp) expression and function resulting in thrombocytopenia, eczema, recurrent infections, and autoimmunity. In T cells, WASp is required for immune synapse formation. Patients with WAS show reduced numbers of peripheral blood T lymphocytes and an altered T-cell receptor repertoire. In vitro, their peripheral T cells show decreased proliferation and cytokine production upon aCD3/aCD28 stimulation. It is unclear whether these T-cell defects are acquired during peripheral activation or are, in part, generated during thymic development. Here, we assessed the role of WASp during T-cell differentiation using artificial thymic organoid cultures and in the thymus of humanized mice. Although CRISPR/Cas9 WAS knockout hematopoietic stem and progenitor cells (HSPCs) rearranged the T-cell receptor and differentiated to T-cell receptor (TCR)+ CD4+ CD8+ double-positive (DP) cells similar to wild-type HSPCs, a partial defect in the generation of CD8 single-positive (SP) cells was observed, suggesting that WASp is involved in their positive selection. TCR repertoire analysis of the DP and CD8+ SP population, however, showed a polyclonal repertoire with no bias toward autoreactivity. To our knowledge, this is the first study of the role of WASp in human T-cell differentiation and on TCR repertoire generation.
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Affiliation(s)
- Melissa Pille
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - John Avila
- Brown Foundation Institute of Molecular Medicine, Mc Govern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Guillem Sanchez Sanchez
- Department of Pharmacotherapy and Pharmaceutics, Université Libre de Bruxelles (ULB), Brussels, Belgium
- Institute for Medical Immunology, Université Libre de Bruxelles (ULB), Brussels, Belgium
- ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels, Belgium
- WELBIO Department, WEL Research Institute, Wavre, Belgium
| | - Glenn Goetgeluk
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Stijn De Munter
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Hanne Jansen
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Lore Billiet
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Karin Weening
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Haipeng Xue
- Brown Foundation Institute of Molecular Medicine, Mc Govern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Sarah Bonte
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
- Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium
| | - Joline Ingels
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Laurenz De Cock
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Eva Pascal
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Lucas Deseins
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Tessa Kerre
- Department of Internal Medicine and Pediatrics, Ghent University Hospital, Ghent, Belgium
- Department of Hematology, Ghent University Hospital, Ghent, Belgium
| | - Tom Taghon
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - David Vermijlen
- Department of Pharmacotherapy and Pharmaceutics, Université Libre de Bruxelles (ULB), Brussels, Belgium
- Institute for Medical Immunology, Université Libre de Bruxelles (ULB), Brussels, Belgium
- ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels, Belgium
- WELBIO Department, WEL Research Institute, Wavre, Belgium
| | - Brian Davis
- Brown Foundation Institute of Molecular Medicine, Mc Govern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Bart Vandekerckhove
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
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3
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Billiet L, De Cock L, Sanchez Sanchez G, Mayer RL, Goetgeluk G, De Munter S, Pille M, Ingels J, Jansen H, Weening K, Pascal E, Raes K, Bonte S, Kerre T, Vandamme N, Seurinck R, Roels J, Lavaert M, Van Nieuwerburgh F, Leclercq G, Taghon T, Impens F, Menten B, Vermijlen D, Vandekerckhove B. Single-cell profiling identifies a novel human polyclonal unconventional T cell lineage. J Exp Med 2023; 220:e20220942. [PMID: 36939517 PMCID: PMC10037106 DOI: 10.1084/jem.20220942] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 12/22/2022] [Accepted: 02/27/2023] [Indexed: 03/21/2023] Open
Abstract
In the human thymus, a CD10+ PD-1+ TCRαβ+ differentiation pathway diverges from the conventional single positive T cell lineages at the early double-positive stage. Here, we identify the progeny of this unconventional lineage in antigen-inexperienced blood. These unconventional T cells (UTCs) in thymus and blood share a transcriptomic profile, characterized by hallmark transcription factors (i.e., ZNF683 and IKZF2), and a polyclonal TCR repertoire with autoreactive features, exhibiting a bias toward early TCRα chain rearrangements. Single-cell RNA sequencing confirms a common developmental trajectory between the thymic and blood UTCs and clearly delineates this unconventional lineage in blood. Besides MME+ recent thymic emigrants, effector-like clusters are identified in this heterogeneous lineage. Expression of Helios and KIR and a decreased CD8β expression are characteristics of this lineage. This UTC lineage could be identified in adult blood and intestinal tissues. In summary, our data provide a comprehensive characterization of the polyclonal unconventional lineage in antigen-inexperienced blood and identify the adult progeny.
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Affiliation(s)
- Lore Billiet
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Laurenz De Cock
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Guillem Sanchez Sanchez
- Department of Pharmacotherapy and Pharmaceutics, Université Libre de Bruxelles, Brussels, Belgium
- Institute for Medical Immunology, Université Libre de Bruxelles, Brussels, Belgium
- Université Libre de Bruxelles Center for Research in Immunology, Université Libre de Bruxelles, Brussels, Belgium
- WELBIO Department, WEL Research Institute, Wavre, Belgium
| | - Rupert L. Mayer
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- VIB Proteomics Core, VIB, Ghent, Belgium
| | - Glenn Goetgeluk
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Stijn De Munter
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Melissa Pille
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Joline Ingels
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Hanne Jansen
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Karin Weening
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Eva Pascal
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Killian Raes
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Sarah Bonte
- Cancer Research Institute Ghent, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Data Mining and Modeling for Biomedicine, VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Tessa Kerre
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Niels Vandamme
- VIB Single Cell Core, VIB, Ghent, Belgium
- Data Mining and Modeling for Biomedicine, VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Ruth Seurinck
- Data Mining and Modeling for Biomedicine, VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Jana Roels
- VIB Single Cell Core, VIB, Ghent, Belgium
- Data Mining and Modeling for Biomedicine, VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Marieke Lavaert
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Filip Van Nieuwerburgh
- Cancer Research Institute Ghent, Ghent, Belgium
- Department of Pharmaceutics, Ghent University, Ghent, Belgium
| | - Georges Leclercq
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Tom Taghon
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Francis Impens
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- VIB-UGent Center for Medical Biotechnology, VIB, Ghent, Belgium
- VIB Proteomics Core, VIB, Ghent, Belgium
| | - Björn Menten
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - David Vermijlen
- Department of Pharmacotherapy and Pharmaceutics, Université Libre de Bruxelles, Brussels, Belgium
- Institute for Medical Immunology, Université Libre de Bruxelles, Brussels, Belgium
- Université Libre de Bruxelles Center for Research in Immunology, Université Libre de Bruxelles, Brussels, Belgium
- WELBIO Department, WEL Research Institute, Wavre, Belgium
| | - Bart Vandekerckhove
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
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4
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Persyn E, Wahlen S, Kiekens L, Van Loocke W, Siwe H, Van Ammel E, De Vos Z, Van Nieuwerburgh F, Matthys P, Taghon T, Vandekerckhove B, Van Vlierberghe P, Leclercq G. IRF2 is required for development and functional maturation of human NK cells. Front Immunol 2022; 13:1038821. [PMID: 36544762 PMCID: PMC9762550 DOI: 10.3389/fimmu.2022.1038821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/11/2022] [Indexed: 12/12/2022] Open
Abstract
Natural killer (NK) cells are cytotoxic and cytokine-producing lymphocytes that play an important role in the first line of defense against malignant or virus-infected cells. A better understanding of the transcriptional regulation of human NK cell differentiation is crucial to improve the efficacy of NK cell-mediated immunotherapy for cancer treatment. Here, we studied the role of the transcription factor interferon regulatory factor (IRF) 2 in human NK cell differentiation by stable knockdown or overexpression in cord blood hematopoietic stem cells and investigated its effect on development and function of the NK cell progeny. IRF2 overexpression had limited effects in these processes, indicating that endogenous IRF2 expression levels are sufficient. However, IRF2 knockdown greatly reduced the cell numbers of all early differentiation stages, resulting in decimated NK cell numbers. This was not caused by increased apoptosis, but by decreased proliferation. Expression of IRF2 is also required for functional maturation of NK cells, as the remaining NK cells after silencing of IRF2 had a less mature phenotype and showed decreased cytotoxic potential, as well as a greatly reduced cytokine secretion. Thus, IRF2 plays an important role during development and functional maturation of human NK cells.
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Affiliation(s)
- Eva Persyn
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Sigrid Wahlen
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Laura Kiekens
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Wouter Van Loocke
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Hannah Siwe
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Els Van Ammel
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Zenzi De Vos
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | | | - Patrick Matthys
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology, Immunology and Transplantation, K.U. Leuven, Leuven, Belgium
| | - Tom Taghon
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Bart Vandekerckhove
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Pieter Van Vlierberghe
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium,Cancer Research Institute Ghent (CRIG), Ghent, Belgium,*Correspondence: Georges Leclercq,
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5
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Kiekens L, Wahlen S, Persyn E, De Vos Z, Taghon T, Vandekerckhove B, Leclercq G. T-BET drives the conversion of human type 3 innate lymphoid cells into functional NK cells. Front Immunol 2022; 13:975778. [PMID: 36330517 PMCID: PMC9623292 DOI: 10.3389/fimmu.2022.975778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 09/30/2022] [Indexed: 11/13/2022] Open
Abstract
Type 3 innate lymphoid cells (ILC3s) are characterized by RORγt expression and they produce IL-22 upon activation. ILC3s play a role in maintenance of barrier integrity in the intestine. Under inflammatory conditions, the ILC composition of the mucosal tissues is altered due to a high degree of plasticity. It has been extensively demonstrated that both murine and human ILC3s convert into ILC1s to mediate appropriate immune responses. However, plasticity between human ILC3s and NK cells is less well documented. As T-BET and EOMES are key transcription factors in NK cell differentiation, we investigated whether ectopic T-BET or EOMES expression converts human ILC3s into NK cells. ILC3s with ectopic T-BET and EOMES expression downregulate RORγt expression, while T-BET-overexpressing ILC3s additionally upregulate EOMES expression. High E ctopic T-BET expression in ILC3s results in transdifferentiation towards CD94+ NK cells, whereas ectopic EOMES overexpression results in dedifferentiation of ILC3s into CD94-CD117-/low cells but is ineffective in NK cell generation. Dedifferentiating ILC3s from both T-BET and EOMES overexpression cultures upregulate NK cell receptors, perforin and granzyme B. Finally, IL-22 secretion is completely blocked in transdifferentiating ILC3s with both T-BET and EOMES ectopic expression, whereas only T-BET overexpression increases IFN-γ secretion and cytotoxicity. Altogether, these findings demonstrate that human ILC3s can convert into functional NK cells, wherein T-BET, and not EOMES, is the main driver.
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Affiliation(s)
- Laura Kiekens
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Sigrid Wahlen
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Eva Persyn
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Zenzi De Vos
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Tom Taghon
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Bart Vandekerckhove
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
- *Correspondence: Georges Leclercq,
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6
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Malengier-Devlies B, Filtjens J, Ahmadzadeh K, Boeckx B, Vandenhaute J, De Visscher A, Bernaerts E, Mitera T, Jacobs C, Vanderbeke L, Van Mol P, Van Herck Y, Hermans G, Meersseman P, Wilmer A, Gouwy M, Garg AD, Humblet-Baron S, De Smet F, Martinod K, Wauters E, Proost P, Wouters C, Leclercq G, Lambrechts D, Wauters J, Matthys P. Severe COVID-19 patients display hyper-activated NK cells and NK cell-platelet aggregates. Front Immunol 2022; 13:861251. [PMID: 36275702 PMCID: PMC9581751 DOI: 10.3389/fimmu.2022.861251] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 08/15/2022] [Indexed: 01/08/2023] Open
Abstract
COVID-19 is characterised by a broad spectrum of clinical and pathological features. Natural killer (NK) cells play an important role in innate immune responses to viral infections. Here, we analysed the phenotype and activity of NK cells in the blood of COVID-19 patients using flow cytometry, single-cell RNA-sequencing (scRNA-seq), and a cytotoxic killing assay. In the plasma of patients, we quantified the main cytokines and chemokines. Our cohort comprises COVID-19 patients hospitalised in a low-care ward unit (WARD), patients with severe COVID-19 disease symptoms hospitalised in intensive care units (ICU), and post-COVID-19 patients, who were discharged from hospital six weeks earlier. NK cells from hospitalised COVID-19 patients displayed an activated phenotype with substantial differences between WARD and ICU patients and the timing when samples were taken post-onset of symptoms. While NK cells from COVID-19 patients at an early stage of infection showed increased expression of the cytotoxic molecules perforin and granzyme A and B, NK cells from patients at later stages of COVID-19 presented enhanced levels of IFN-γ and TNF-α which were measured ex vivo in the absence of usual in vitro stimulation. These activated NK cells were phenotyped as CD49a+CD69a+CD107a+ cells, and their emergence in patients correlated to the number of neutrophils, and plasma IL-15, a key cytokine in NK cell activation. Despite lower amounts of cytotoxic molecules in NK cells of patients with severe symptoms, majority of COVID-19 patients displayed a normal cytotoxic killing of Raji tumour target cells. In vitro stimulation of patients blood cells by IL-12+IL-18 revealed a defective IFN-γ production in NK cells of ICU patients only, indicative of an exhausted phenotype. ScRNA-seq revealed, predominantly in patients with severe COVID-19 disease symptoms, the emergence of an NK cell subset with a platelet gene signature that we identified by flow and imaging cytometry as aggregates of NK cells with CD42a+CD62P+ activated platelets. Post-COVID-19 patients show slow recovery of NK cell frequencies and phenotype. Our study points to substantial changes in NK cell phenotype during COVID-19 disease and forms a basis to explore the contribution of platelet-NK cell aggregates to antiviral immunity against SARS-CoV-2 and disease pathology.
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Affiliation(s)
- Bert Malengier-Devlies
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Jessica Filtjens
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Kourosh Ahmadzadeh
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Bram Boeckx
- Laboratory of Translational Genetics, Department of Human Genetics, VIB-KU Leuven, Leuven, Belgium
| | - Jessica Vandenhaute
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Amber De Visscher
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Eline Bernaerts
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Tania Mitera
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Cato Jacobs
- Laboratory for Clinical Infectious and Inflammatory Disorders, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Lore Vanderbeke
- Laboratory of Clinical Bacteriology and Mycology, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Pierre Van Mol
- Laboratory of Translational Genetics, Department of Human Genetics, VIB-KU Leuven, Leuven, Belgium
| | - Yannick Van Herck
- Laboratory of Experimental Oncology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Greet Hermans
- Laboratory of Intensive Care Medicine, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Philippe Meersseman
- Laboratory for Clinical Infectious and Inflammatory Disorders, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Alexander Wilmer
- Laboratory for Clinical Infectious and Inflammatory Disorders, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Mieke Gouwy
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Abhishek D. Garg
- Laboratory for Cell Stress & Immunity (CSI), Department of Cellular and Molecular Medicine (CMM), KU Leuven, Leuven, Belgium
| | - Stephanie Humblet-Baron
- Adaptive Immunology, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Frederik De Smet
- Laboratory for Precision Cancer Medicine, Translational Cell and Tissue Research, Department of Imaging & Pathology, KU Leuven, Leuven, Belgium
| | - Kimberly Martinod
- Centre for Molecular and Vascular Biology, Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Els Wauters
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Paul Proost
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Carine Wouters
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Diether Lambrechts
- Laboratory of Translational Genetics, Department of Human Genetics, VIB-KU Leuven, Leuven, Belgium
| | - Joost Wauters
- Laboratory for Clinical Infectious and Inflammatory Disorders, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Patrick Matthys
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
- *Correspondence: Patrick Matthys,
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7
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Persyn E, Wahlen S, Kiekens L, Taveirne S, Van Loocke W, Van Ammel E, Van Nieuwerburgh F, Taghon T, Vandekerckhove B, Van Vlierberghe P, Leclercq G. TXNIP Promotes Human NK Cell Development but Is Dispensable for NK Cell Functionality. Int J Mol Sci 2022; 23:ijms231911345. [PMID: 36232644 PMCID: PMC9570291 DOI: 10.3390/ijms231911345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/13/2022] [Accepted: 09/22/2022] [Indexed: 12/05/2022] Open
Abstract
The ability of natural killer (NK) cells to kill tumor cells without prior sensitization makes them a rising player in immunotherapy. Increased understanding of the development and functioning of NK cells will improve their clinical utilization. As opposed to murine NK cell development, human NK cell development is still less understood. Here, we studied the role of thioredoxin-interacting protein (TXNIP) in human NK cell differentiation by stable TXNIP knockdown or overexpression in cord blood hematopoietic stem cells, followed by in vitro NK cell differentiation. TXNIP overexpression only had marginal effects, indicating that endogenous TXNIP levels are sufficient in this process. TXNIP knockdown, however, reduced proliferation of early differentiation stages and greatly decreased NK cell numbers. Transcriptome analysis and experimental confirmation showed that reduced protein synthesis upon TXNIP knockdown likely caused this low proliferation. Contrary to its profound effects on the early differentiation stages, TXNIP knockdown led to limited alterations in NK cell phenotype, and it had no effect on NK cell cytotoxicity or cytokine production. Thus, TXNIP promotes human NK cell differentiation by affecting protein synthesis and proliferation of early NK cell differentiation stages, but it is redundant for functional NK cell maturation.
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Affiliation(s)
- Eva Persyn
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Sigrid Wahlen
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Laura Kiekens
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Sylvie Taveirne
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Wouter Van Loocke
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium
| | - Els Van Ammel
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | | | - Tom Taghon
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Bart Vandekerckhove
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
| | - Pieter Van Vlierberghe
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), 9000 Ghent, Belgium
- Correspondence: ; Tel.: +32-9-332-37-34
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8
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Roels J, Van Hulle J, Lavaert M, Kuchmiy A, Strubbe S, Putteman T, Vandekerckhove B, Leclercq G, Van Nieuwerburgh F, Boehme L, Taghon T. Transcriptional dynamics and epigenetic regulation of E and ID protein encoding genes during human T cell development. Front Immunol 2022; 13:960918. [PMID: 35967340 PMCID: PMC9366357 DOI: 10.3389/fimmu.2022.960918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 07/05/2022] [Indexed: 12/05/2022] Open
Abstract
T cells are generated from hematopoietic stem cells through a highly organized developmental process, in which stage-specific molecular events drive maturation towards αβ and γδ T cells. Although many of the mechanisms that control αβ- and γδ-lineage differentiation are shared between human and mouse, important differences have also been observed. Here, we studied the regulatory dynamics of the E and ID protein encoding genes during pediatric human T cell development by evaluating changes in chromatin accessibility, histone modifications and bulk and single cell gene expression. We profiled patterns of ID/E protein activity and identified up- and downstream regulators and targets, respectively. In addition, we compared transcription of E and ID protein encoding genes in human versus mouse to predict both shared and unique activities in these species, and in prenatal versus pediatric human T cell differentiation to identify regulatory changes during development. This analysis showed a putative involvement of TCF3/E2A in the development of γδ T cells. In contrast, in αβ T cell precursors a pivotal pre-TCR-driven population with high ID gene expression and low predicted E protein activity was identified. Finally, in prenatal but not postnatal thymocytes, high HEB/TCF12 levels were found to counteract high ID levels to sustain thymic development. In summary, we uncovered novel insights in the regulation of E and ID proteins on a cross-species and cross-developmental level.
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MESH Headings
- Animals
- Cell Differentiation/genetics
- Child
- Epigenesis, Genetic
- Hematopoietic Stem Cells/metabolism
- Humans
- Mice
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Receptors, Antigen, T-Cell, alpha-beta/metabolism
- Receptors, Antigen, T-Cell, gamma-delta/genetics
- Receptors, Antigen, T-Cell, gamma-delta/metabolism
- Transcription Factors/metabolism
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Affiliation(s)
- Juliette Roels
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Jolien Van Hulle
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Marieke Lavaert
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Anna Kuchmiy
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Steven Strubbe
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Tom Putteman
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Bart Vandekerckhove
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Georges Leclercq
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Filip Van Nieuwerburgh
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
- Laboratory of Pharmaceutical Biotechnology, Ghent University, Ghent, Belgium
| | - Lena Boehme
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- *Correspondence: Lena Boehme, ; Tom Taghon,
| | - Tom Taghon
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
- *Correspondence: Lena Boehme, ; Tom Taghon,
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9
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Wahlen S, Matthijssens F, Van Loocke W, Taveirne S, Kiekens L, Persyn E, Van Ammel E, De Vos Z, De Munter S, Matthys P, Van Nieuwerburgh F, Taghon T, Vandekerckhove B, Van Vlierberghe P, Leclercq G. The transcription factor RUNX2 drives the generation of human NK cells and promotes tissue residency. eLife 2022; 11:e80320. [PMID: 35793229 PMCID: PMC9259014 DOI: 10.7554/elife.80320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 05/26/2022] [Indexed: 12/16/2022] Open
Abstract
Natural killer (NK) cells are innate lymphocytes that eliminate virus-infected and cancer cells by cytotoxicity and cytokine secretion. In addition to circulating NK cells, distinct tissue-resident NK subsets have been identified in various organs. Although transcription factors regulating NK cell development and function have been extensively studied in mice, the role of RUNX2 in these processes has not been investigated, neither in mice nor in human. Here, by manipulating RUNX2 expression with either knockdown or overexpression in human haematopoietic stem cell-based NK cell differentiation cultures, combined with transcriptomic and ChIP-sequencing analyses, we established that RUNX2 drives the generation of NK cells, possibly through induction of IL-2Rβ expression in NK progenitor cells. Importantly, RUNX2 promotes tissue residency in human NK cells. Our findings have the potential to improve existing NK cell-based cancer therapies and can impact research fields beyond NK cell biology, since tissue-resident subsets have also been described in other lymphocyte subpopulations.
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Affiliation(s)
- Sigrid Wahlen
- Department of Diagnostic Sciences, Ghent UniversityGhentBelgium
- Cancer Research Institute GhentGhentBelgium
| | - Filip Matthijssens
- Cancer Research Institute GhentGhentBelgium
- Department of Biomolecular Medicine, Ghent UniversityGhentBelgium
| | - Wouter Van Loocke
- Cancer Research Institute GhentGhentBelgium
- Department of Biomolecular Medicine, Ghent UniversityGhentBelgium
| | - Sylvie Taveirne
- Department of Diagnostic Sciences, Ghent UniversityGhentBelgium
- Cancer Research Institute GhentGhentBelgium
| | - Laura Kiekens
- Department of Diagnostic Sciences, Ghent UniversityGhentBelgium
- Cancer Research Institute GhentGhentBelgium
| | - Eva Persyn
- Department of Diagnostic Sciences, Ghent UniversityGhentBelgium
- Cancer Research Institute GhentGhentBelgium
| | - Els Van Ammel
- Department of Diagnostic Sciences, Ghent UniversityGhentBelgium
- Cancer Research Institute GhentGhentBelgium
| | - Zenzi De Vos
- Department of Diagnostic Sciences, Ghent UniversityGhentBelgium
- Cancer Research Institute GhentGhentBelgium
| | - Stijn De Munter
- Department of Diagnostic Sciences, Ghent UniversityGhentBelgium
- Cancer Research Institute GhentGhentBelgium
| | - Patrick Matthys
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology, Immunology and Transplantation, KU LeuvenLeuvenBelgium
| | | | - Tom Taghon
- Department of Diagnostic Sciences, Ghent UniversityGhentBelgium
- Cancer Research Institute GhentGhentBelgium
| | - Bart Vandekerckhove
- Department of Diagnostic Sciences, Ghent UniversityGhentBelgium
- Cancer Research Institute GhentGhentBelgium
| | - Pieter Van Vlierberghe
- Cancer Research Institute GhentGhentBelgium
- Department of Biomolecular Medicine, Ghent UniversityGhentBelgium
| | - Georges Leclercq
- Department of Diagnostic Sciences, Ghent UniversityGhentBelgium
- Cancer Research Institute GhentGhentBelgium
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10
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Ingels J, De Smet S, Heyns K, Lootens N, Segaert J, Taghon T, Leclercq G, Vermaelen K, Willems E, Baudoux E, Kerre T, Baron F, Vandekerckhove B. Treatment of a patient with severe cytomegalovirus (CMV) infection after haploidentical stem cell transplantation with donor derived CMV specific T cells. Acta Clin Belg 2021; 76:482-486. [PMID: 32285755 DOI: 10.1080/17843286.2020.1752446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Objectives: Cytomegalovirus (CMV) infection is one of the most common complications in allogeneic hematopoietic stem cell transplant (allo-HSCT) recipients. The classic antiviral treatments have shown clinical efficacy but are often associated with drug resistance. Reconstitution of CMV-specific cellular immunity is essential in controlling CMV infection; therefore, adoptive transfer of CMV-specific T cells is a promising treatment option. We treated a patient with a multidrug resistant CMV infection after haploidentical HSCT with CMV-specific T cells.Methods: The T cells were derived from the HSCT donor who was CMV seropositive. We generated the T cells by a short-term Good Manufacturing Practice (GMP) grade protocol in which a leukapheresis product of the HSCT donor was stimulated with the immunodominant antigen pp65 and interferon-γ secreting cells were isolated. A total of 5 × 105 T cells were administered to the patient within 30 hours after leukapheresis.Results: The patient was closely monitored for reconstitution of antiviral T cell immunity and viral replication after adoptive T cell transfer. We observed an in vivo expansion of both CD4+ and CD8+ CMV-specific T cells associated with a significant decrease in viral burden and clinical improvement.Conclusion: This case report further supports the feasibility and effectiveness of adoptive donor T cell transfer for the treatment of drug resistant CMV infections after allo-HSCT.
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Affiliation(s)
- Joline Ingels
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cell Therapy Unit, Department of Regenerative Medicine, Ghent University Hospital, Ghent, Belgium
| | - Saskia De Smet
- Cell Therapy Unit, Department of Regenerative Medicine, Ghent University Hospital, Ghent, Belgium
| | - Kelly Heyns
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Nele Lootens
- Cell Therapy Unit, Department of Regenerative Medicine, Ghent University Hospital, Ghent, Belgium
| | - Jonas Segaert
- Department of Internal Medicine, Ghent University Hospital, Ghent, Belgium
| | - Tom Taghon
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Georges Leclercq
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Karim Vermaelen
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Evelyne Willems
- Department of Medicine, Division of Hematology, University of Liège, Liège, Belgium
| | - Etienne Baudoux
- Department of Medicine, Division of Hematology, University of Liège, Liège, Belgium
| | - Tessa Kerre
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Department of Internal Medicine, Ghent University Hospital, Ghent, Belgium
| | - Frédéric Baron
- Department of Medicine, Division of Hematology, University of Liège, Liège, Belgium
| | - Bart Vandekerckhove
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Cell Therapy Unit, Department of Regenerative Medicine, Ghent University Hospital, Ghent, Belgium
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11
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Kiekens L, Van Loocke W, Taveirne S, Wahlen S, Persyn E, Van Ammel E, De Vos Z, Matthys P, Van Nieuwerburgh F, Taghon T, Van Vlierberghe P, Vandekerckhove B, Leclercq G. T-BET and EOMES Accelerate and Enhance Functional Differentiation of Human Natural Killer Cells. Front Immunol 2021; 12:732511. [PMID: 34630413 PMCID: PMC8497824 DOI: 10.3389/fimmu.2021.732511] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 08/27/2021] [Indexed: 12/24/2022] Open
Abstract
T-bet and Eomes are transcription factors that are known to be important in maturation and function of murine natural killer (NK) cells. Reduced T-BET and EOMES expression results in dysfunctional NK cells and failure to control tumor growth. In contrast to mice, the current knowledge on the role of T-BET and EOMES in human NK cells is rudimentary. Here, we ectopically expressed either T-BET or EOMES in human hematopoietic progenitor cells. Combined transcriptome, chromatin accessibility and protein expression analyses revealed that T-BET or EOMES epigenetically represses hematopoietic stem cell quiescence and non-NK lineage differentiation genes, while activating an NK cell-specific transcriptome and thereby drastically accelerating NK cell differentiation. In this model, the effects of T-BET and EOMES are largely overlapping, yet EOMES shows a superior role in early NK cell maturation and induces faster NK receptor and enhanced CD16 expression. T-BET particularly controls transcription of terminal maturation markers and epigenetically controls strong induction of KIR expression. Finally, NK cells generated upon T-BET or EOMES overexpression display improved functionality, including increased IFN-γ production and killing, and especially EOMES overexpression NK cells have enhanced antibody-dependent cellular cytotoxicity. Our findings reveal novel insights on the regulatory role of T-BET and EOMES in human NK cell maturation and function, which is essential to further understand human NK cell biology and to optimize adoptive NK cell therapies.
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Affiliation(s)
- Laura Kiekens
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Wouter Van Loocke
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Sylvie Taveirne
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Sigrid Wahlen
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Eva Persyn
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Els Van Ammel
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Zenzi De Vos
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Patrick Matthys
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology, Immunology and Transplantation, K.U. Leuven, Leuven, Belgium
| | - Filip Van Nieuwerburgh
- Laboratory of Pharmaceutical Biotechnology, Department of Pharmaceutics, Ghent University, Ghent, Belgium
| | - Tom Taghon
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Pieter Van Vlierberghe
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Bart Vandekerckhove
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
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12
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Bonte S, de Munter S, Billiet L, Goetgeluk G, Ingels J, Jansen H, Pille M, de Cock L, Weening K, Taghon T, Leclercq G, Vandekerckhove B, Kerre T. In vitro OP9-DL1 co-culture and subsequent maturation in the presence of IL-21 generates tumor antigen-specific T cells with a favorable less-differentiated phenotype and enhanced functionality. Oncoimmunology 2021; 10:1954800. [PMID: 34367734 PMCID: PMC8312599 DOI: 10.1080/2162402x.2021.1954800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
T cell receptor (TCR)-redirected T cells target intracellular antigens such as Wilms' tumor 1 (WT1), a tumor-associated antigen overexpressed in several malignancies, including acute myeloid leukemia (AML). For both chimeric antigen receptor (CAR)- and TCR-redirected T cells, several clinical studies indicate that T cell subsets with a less-differentiated phenotype (e.g. stem cell memory T cells, TSCM) survive longer and mediate superior anti-tumor effects in vivo as opposed to more terminally differentiated T cells. Cytokines added during in vitro and ex vivo culture of T cells play an important role in driving the phenotype of T cells for adoptive transfer. Using the OP9-DL1 co-culture system, we have shown previously that we are able to generate in vitro, starting from clinically relevant stem cell sources, T cells with a single tumor antigen (TA)-specific TCR. This method circumvents possible TCR chain mispairing and unwanted toxicities that might occur when introducing a TA-specific TCR in peripheral blood lymphocytes. We now show that we are able to optimize our in vitro culture protocol, by adding IL-21 during maturation, resulting in generation of TA-specific T cells with a less-differentiated phenotype and enhanced in vitro anti-tumor effects. We believe the favorable TSCM-like phenotype of these in vitro generated T cells preludes superior in vivo persistence and anti-tumor efficacy. Therefore, these TA-specific T cells could be of use as a valuable new form of patient-tailored T cell immunotherapy for malignancies for which finding a suitable CAR-T target antigen is challenging, such as AML.
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Affiliation(s)
- Sarah Bonte
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Stijn de Munter
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Lore Billiet
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Glenn Goetgeluk
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Joline Ingels
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Hanne Jansen
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Melissa Pille
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Laurenz de Cock
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Karin Weening
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Tom Taghon
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Georges Leclercq
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Bart Vandekerckhove
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Tessa Kerre
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Department of Hematology, Ghent University Hospital, Ghent, Belgium
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13
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Strubbe S, De Bruyne M, Pannicke U, Beyls E, Vandekerckhove B, Leclercq G, De Baere E, Bordon V, Vral A, Schwarz K, Haerynck F, Taghon T. A Novel Non-Coding Variant in DCLRE1C Results in Deregulated Splicing and Induces SCID Through the Generation of a Truncated ARTEMIS Protein That Fails to Support V(D)J Recombination and DNA Damage Repair. Front Immunol 2021; 12:674226. [PMID: 34220820 PMCID: PMC8248492 DOI: 10.3389/fimmu.2021.674226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 06/03/2021] [Indexed: 11/13/2022] Open
Abstract
Severe Combined Immune Deficiency (SCID) is a primary deficiency of the immune system in which opportunistic and recurring infections are often fatal during neonatal or infant life. SCID is caused by an increasing number of genetic defects that induce an abrogation of T lymphocyte development or function in which B and NK cells might be affected as well. Because of the increased availability and usage of next-generation sequencing (NGS), many novel variants in SCID genes are being identified and cause a heterogeneous disease spectrum. However, the molecular and functional implications of these new variants, of which some are non-coding, are often not characterized in detail. Using targeted NGS, we identified a novel homozygous c.465-1G>C splice acceptor site variant in the DCLRE1C gene in a T-B-NK+ SCID patient and fully characterized the molecular and functional impact. By performing a minigene splicing reporter assay, we revealed deregulated splicing of the DCLRE1C transcript since a cryptic splice acceptor in exon 7 was employed. This induced a frameshift and the generation of a p.Arg155Serfs*15 premature termination codon (PTC) within all DCLRE1C splice variants, resulting in the absence of full-length ARTEMIS protein. Consistently, a V(D)J recombination assay and a G0 micronucleus assay demonstrated the inability of the predicted mutant ARTEMIS protein to perform V(D)J recombination and DNA damage repair, respectively. Together, these experiments molecularly and functionally clarify how a newly identified c.465-1G>C variant in the DCLRE1C gene is responsible for inducing SCID. In a clinical context, this demonstrates how the experimental validation of new gene variants, that are identified by NGS, can facilitate the diagnosis of SCID which can be vital for implementing appropriate therapies.
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Affiliation(s)
- Steven Strubbe
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | | | - Ulrich Pannicke
- The Institute for Transfusion Medicine, University of Ulm, Ulm, Germany
| | - Elien Beyls
- Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | - Bart Vandekerckhove
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Georges Leclercq
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Elfride De Baere
- Center for Medical Genetics Ghent (CMGG), Ghent, Belgium.,Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Victoria Bordon
- Department of Internal Medicine and Pediatrics, Division of Pediatric Hemato-Oncology and Stem Cell Transplantation, Ghent University Hospital, Ghent, Belgium
| | - Anne Vral
- Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | - Klaus Schwarz
- The Institute for Transfusion Medicine, University of Ulm, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics Ulm, Germa Red Cross Blood Service Baden-Württemberg - Hessen, Ulm, Germany
| | - Filomeen Haerynck
- Primary Immunodeficiency Research Lab, Jeffrey Modell Diagnosis and Research Center, Ghent University Hospital, Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Division of Pediatric Immunology and Pulmonology, Ghent University Hospital, Ghent, Belgium
| | - Tom Taghon
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
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14
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De Decker M, Lavaert M, Roels J, Tilleman L, Vandekerckhove B, Leclercq G, Van Nieuwerburgh F, Van Vlierberghe P, Taghon T. HES1 and HES4 have non-redundant roles downstream of Notch during early human T-cell development. Haematologica 2021; 106:130-141. [PMID: 31919081 PMCID: PMC7776241 DOI: 10.3324/haematol.2019.226126] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 01/02/2020] [Indexed: 11/09/2022] Open
Abstract
In both mouse and human, Notch1 activation is the main initial driver to induce T-cell development in hematopoietic progenitor cells. The initiation of this developmental process coincides with Notch1-dependent repression of differentiation towards other hematopoietic lineages. Although well described in mice, the role of the individual Notch1 target genes during these hematopoietic developmental choices is still unclear in human, particularly for HES4 since no orthologous gene is present in the mouse. Here, we investigated the functional capacity of the Notch1 target genes HES1 and HES4 to modulate human Notch1-dependent hematopoietic lineage decisions and their requirement during early T-cell development. We show that both genes are upregulated in a Notch-dependent manner during early T-cell development and that HES1 acts as a repressor of differentiation by maintaining a quiescent stem cell signature in CD34+ hematopoietic progenitor cells. While HES4 can also inhibit natural killer and myeloid cell development like HES1, it acts differently on the T- versus B-cell lineage choice. Surprisingly, HES4 is not capable of repressing B-cell development, the most sensitive hematopoietic lineage with respect to Notch-mediated repression. In contrast to HES1, HES4 promotes initiation of early T-cell development, but ectopic expression of HES4, or HES1 and HES4 combined, is not sufficient to induce T-lineage differentiation. Importantly, knockdown of HES1 or HES4 significantly reduces human T-cell development. Overall, we show that the Notch1 target genes HES1 and HES4 have non-redundant roles during early human T-cell development which may relate to differences in mediating Notch-dependent human hematopoietic lineage decisions.
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Affiliation(s)
| | - Marieke Lavaert
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Juliette Roels
- Department of Diagnostic Sciences and of Bimolecular Medicine, Ghent University, Ghent, Belgium
| | - Laurentijn Tilleman
- Laboratory of Pharmaceutical Biotechnology, Ghent University, Ghent, Belgium
| | - Bart Vandekerckhove
- Cancer Research Institute Ghent (CRIG),Dept of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Georges Leclercq
- Cancer Research Institute Ghent (CRIG),Dept of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | | | - Pieter Van Vlierberghe
- Cancer Research Institute Ghent (CRIG), Dept of Biomolecular Medicine, Ghent University, Belgium
| | - Tom Taghon
- Cancer Research Institute Ghent (CRIG),Dept of Diagnostic Sciences, Ghent University, Ghent, Belgium
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15
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Lavaert M, Valcke B, Vandekerckhove B, Leclercq G, Liang KL, Taghon T. Conventional and Computational Flow Cytometry Analyses Reveal Sustained Human Intrathymic T Cell Development From Birth Until Puberty. Front Immunol 2020; 11:1659. [PMID: 32849574 PMCID: PMC7417369 DOI: 10.3389/fimmu.2020.01659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/22/2020] [Indexed: 11/13/2022] Open
Abstract
The thymus is the organ where subsets of mature T cells are generated which subsequently egress to function as central mediators in the immune system. While continuously generating T cells even into adulthood, the thymus does undergo involution during life. This is characterized by an initial rapid decrease in thymic cellularity during early life and by a second age-dependent decline in adulthood. The thymic cellularity of neonates remains low during the first month after birth and the tissue reaches a maximum in cellularity at 6 months of age. In order to study the effect that this first phase of thymic involution has on thymic immune subset frequencies, we performed multi-color flow cytometry on thymic samples collected from birth to 14 years of age. In consideration of the inherent limitations posed by conventional flow cytometry analysis, we established a novel computational analysis pipeline that is adapted from single-cell transcriptome sequencing data analysis. This allowed us to overcome technical effects by batch correction, analyze multiple samples simultaneously, limit computational cost by subsampling, and to rely on KNN-graphs for graph-based clustering. As a result, we successfully identified rare, distinct and gradually developing immune subsets within the human thymus tissues. Although the thymus undergoes early involution from infanthood onwards, our data suggests that this does not affect human T-cell development as we did not observe significant alterations in the proportions of T-lineage developmental intermediates from birth to puberty. Thus, in addition to providing an interesting novel strategy to analyze conventional flow cytometry data for the thymus, our work shows that the early phase of human thymic involution mainly limits the overall T cell output since no obvious changes in thymocyte subsets could be observed.
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Affiliation(s)
- Marieke Lavaert
- Department of Diagnostic Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Brecht Valcke
- Department of Diagnostic Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Bart Vandekerckhove
- Department of Diagnostic Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Georges Leclercq
- Department of Diagnostic Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Kai Ling Liang
- Department of Diagnostic Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Tom Taghon
- Department of Diagnostic Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
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16
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Roels J, Kuchmiy A, De Decker M, Strubbe S, Lavaert M, Liang KL, Leclercq G, Vandekerckhove B, Van Nieuwerburgh F, Van Vlierberghe P, Taghon T. Distinct and temporary-restricted epigenetic mechanisms regulate human αβ and γδ T cell development. Nat Immunol 2020; 21:1280-1292. [PMID: 32719521 DOI: 10.1038/s41590-020-0747-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 06/24/2020] [Indexed: 01/08/2023]
Abstract
The development of TCRαβ and TCRγδ T cells comprises a step-wise process in which regulatory events control differentiation and lineage outcome. To clarify these mechanisms, we employed RNA-sequencing, ATAC-sequencing and ChIPmentation on well-defined thymocyte subsets that represent the continuum of human T cell development. The chromatin accessibility dynamics show clear stage specificity and reveal that human T cell-lineage commitment is marked by GATA3- and BCL11B-dependent closing of PU.1 sites. A temporary increase in H3K27me3 without open chromatin modifications is unique for β-selection, whereas emerging γδ T cells, which originate from common precursors of β-selected cells, show large chromatin accessibility changes due to strong T cell receptor (TCR) signaling. Furthermore, we unravel distinct chromatin landscapes between CD4+ and CD8+ αβ-lineage cells that support their effector functions and reveal gene-specific mechanisms that define mature T cells. This resource provides a framework for studying gene regulatory mechanisms that drive normal and malignant human T cell development.
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Affiliation(s)
- Juliette Roels
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Anna Kuchmiy
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | | | - Steven Strubbe
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Marieke Lavaert
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Kai Ling Liang
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Georges Leclercq
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Bart Vandekerckhove
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Filip Van Nieuwerburgh
- Cancer Research Institute Ghent, Ghent, Belgium.,Laboratory of Pharmaceutical Biotechnology, Ghent University, Ghent, Belgium
| | - Pieter Van Vlierberghe
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent, Ghent, Belgium
| | - Tom Taghon
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium. .,Cancer Research Institute Ghent, Ghent, Belgium.
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17
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Dolens A, Durinck K, Lavaert M, Van der Meulen J, Velghe I, De Medts J, Weening K, Roels J, De Mulder K, Volders P, De Preter K, Kerre T, Vandekerckhove B, Leclercq G, Vandesompele J, Mestdagh P, Van Vlierberghe P, Speleman F, Taghon T. Distinct Notch1 and BCL11B requirements mediate human γδ/αβ T cell development. EMBO Rep 2020; 21:e49006. [PMID: 32255245 PMCID: PMC7202205 DOI: 10.15252/embr.201949006] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 03/03/2020] [Accepted: 03/12/2020] [Indexed: 12/22/2022] Open
Abstract
γδ and αβ T cells have unique roles in immunity and both originate in the thymus from T-lineage committed precursors through distinct but unclear mechanisms. Here, we show that Notch1 activation is more stringently required for human γδ development compared to αβ-lineage differentiation and performed paired mRNA and miRNA profiling across 11 discrete developmental stages of human T cell development in an effort to identify the potential Notch1 downstream mechanism. Our data suggest that the miR-17-92 cluster is a Notch1 target in immature thymocytes and that miR-17 can restrict BCL11B expression in these Notch-dependent T cell precursors. We show that enforced miR-17 expression promotes human γδ T cell development and, consistently, that BCL11B is absolutely required for αβ but less for γδ T cell development. This study suggests that human γδ T cell development is mediated by a stage-specific Notch-driven negative feedback loop through which miR-17 temporally restricts BCL11B expression and provides functional insights into the developmental role of the disease-associated genes BCL11B and the miR-17-92 cluster in a human context.
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Affiliation(s)
| | - Kaat Durinck
- Department of Biomolecular MedicineGhent UniversityGhentBelgium
| | - Marieke Lavaert
- Department of Diagnostic SciencesGhent UniversityGhentBelgium
| | | | - Imke Velghe
- Department of Diagnostic SciencesGhent UniversityGhentBelgium
| | - Jelle De Medts
- Department of Diagnostic SciencesGhent UniversityGhentBelgium
| | - Karin Weening
- Department of Diagnostic SciencesGhent UniversityGhentBelgium
| | - Juliette Roels
- Department of Diagnostic SciencesGhent UniversityGhentBelgium
- Department of Biomolecular MedicineGhent UniversityGhentBelgium
| | | | | | | | - Tessa Kerre
- Department of Diagnostic SciencesGhent UniversityGhentBelgium
| | | | | | - Jo Vandesompele
- Department of Biomolecular MedicineGhent UniversityGhentBelgium
| | - Pieter Mestdagh
- Department of Biomolecular MedicineGhent UniversityGhentBelgium
| | | | - Frank Speleman
- Department of Biomolecular MedicineGhent UniversityGhentBelgium
| | - Tom Taghon
- Department of Diagnostic SciencesGhent UniversityGhentBelgium
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18
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Lavaert M, Liang KL, Vandamme N, Park JE, Roels J, Kowalczyk MS, Li B, Ashenberg O, Tabaka M, Dionne D, Tickle TL, Slyper M, Rozenblatt-Rosen O, Vandekerckhove B, Leclercq G, Regev A, Van Vlierberghe P, Guilliams M, Teichmann SA, Saeys Y, Taghon T. Integrated scRNA-Seq Identifies Human Postnatal Thymus Seeding Progenitors and Regulatory Dynamics of Differentiating Immature Thymocytes. Immunity 2020; 52:1088-1104.e6. [PMID: 32304633 DOI: 10.1016/j.immuni.2020.03.019] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/04/2020] [Accepted: 03/27/2020] [Indexed: 10/24/2022]
Abstract
During postnatal life, thymopoiesis depends on the continuous colonization of the thymus by bone-marrow-derived hematopoietic progenitors that migrate through the bloodstream. The current understanding of the nature of thymic immigrants is largely based on data from pre-clinical models. Here, we employed single-cell RNA sequencing (scRNA-seq) to examine the immature postnatal thymocyte population in humans. Integration of bone marrow and peripheral blood precursor datasets identified two putative thymus seeding progenitors that varied in expression of CD7; CD10; and the homing receptors CCR7, CCR9, and ITGB7. Whereas both precursors supported T cell development, only one contributed to intrathymic dendritic cell (DC) differentiation, predominantly of plasmacytoid dendritic cells. Trajectory inference delineated the transcriptional dynamics underlying early human T lineage development, enabling prediction of transcription factor (TF) modules that drive stage-specific steps of human T cell development. This comprehensive dataset defines the expression signature of immature human thymocytes and provides a resource for the further study of human thymopoiesis.
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Affiliation(s)
- Marieke Lavaert
- Faculty of Medicine and Health Sciences, Department of Diagnostic Sciences, Ghent University, C. Heymanslaan 10, MRB2, Entrance 38, 9000 Ghent, Belgium
| | - Kai Ling Liang
- Faculty of Medicine and Health Sciences, Department of Diagnostic Sciences, Ghent University, C. Heymanslaan 10, MRB2, Entrance 38, 9000 Ghent, Belgium
| | - Niels Vandamme
- Data Mining and Modeling for Biomedicine, VIB Center for Inflammation Research, Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
| | - Jong-Eun Park
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SA, UK
| | - Juliette Roels
- Faculty of Medicine and Health Sciences, Department of Diagnostic Sciences, Ghent University, C. Heymanslaan 10, MRB2, Entrance 38, 9000 Ghent, Belgium; Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Monica S Kowalczyk
- Klarman Cell Observatory, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Bo Li
- Klarman Cell Observatory, Broad Institute of Harvard and MIT, Cambridge, MA, USA; Data Sciences Platform, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Orr Ashenberg
- Klarman Cell Observatory, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Marcin Tabaka
- Klarman Cell Observatory, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Danielle Dionne
- Klarman Cell Observatory, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Timothy L Tickle
- Klarman Cell Observatory, Broad Institute of Harvard and MIT, Cambridge, MA, USA; Haematology Department, Royal Victoria Infirmary, Newcastle-upon-Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Michal Slyper
- Klarman Cell Observatory, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | | | - Bart Vandekerckhove
- Faculty of Medicine and Health Sciences, Department of Diagnostic Sciences, Ghent University, C. Heymanslaan 10, MRB2, Entrance 38, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
| | - Georges Leclercq
- Faculty of Medicine and Health Sciences, Department of Diagnostic Sciences, Ghent University, C. Heymanslaan 10, MRB2, Entrance 38, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
| | - Aviv Regev
- Klarman Cell Observatory, Broad Institute of Harvard and MIT, Cambridge, MA, USA; Howard Hughes Medical Institute, Koch Institute of Integrative Cancer Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Pieter Van Vlierberghe
- Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium; Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
| | - Martin Guilliams
- Laboratory of Myeloid Cell Ontogeny and Functional Specialization, VIB Center for Inflammation Research, Ghent, Belgium; Faculty of Sciences, Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Sarah A Teichmann
- Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SA, UK; Theory of Condensed Matter Group, Cavendish Laboratory/Department of Physics, University of Cambridge, Cambridge CB3 0HE, UK
| | - Yvan Saeys
- Data Mining and Modeling for Biomedicine, VIB Center for Inflammation Research, Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium
| | - Tom Taghon
- Faculty of Medicine and Health Sciences, Department of Diagnostic Sciences, Ghent University, C. Heymanslaan 10, MRB2, Entrance 38, 9000 Ghent, Belgium; Cancer Research Institute Ghent (CRIG), Ghent University, Ghent, Belgium.
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19
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Bonte S, De Munter S, Goetgeluk G, Ingels J, Pille M, Billiet L, Taghon T, Leclercq G, Vandekerckhove B, Kerre T. T-cells with a single tumor antigen-specific T-cell receptor can be generated in vitro from clinically relevant stem cell sources. Oncoimmunology 2020; 9:1727078. [PMID: 32117593 PMCID: PMC7028335 DOI: 10.1080/2162402x.2020.1727078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 12/05/2019] [Accepted: 12/19/2019] [Indexed: 11/08/2022] Open
Abstract
Chimeric antigen receptor (CAR) T-cells have shown great promise in the treatment of B-cell malignancies. For acute myeloid leukemia (AML), however, the optimal target surface antigen has yet to be discovered. Alternatively, T-cell receptor (TCR)-redirected T-cells target intracellular antigens, marking a broader territory of available target antigens. Currently, adoptive TCR T-cell therapy uses peripheral blood lymphocytes for the introduction of a transgenic TCR. However, this can cause graft-versus-host disease, due to mispairing of introduced and endogenous TCR chains. Therefore, we started from hematopoietic stem and progenitor cells (HSPC), that do not express a TCR yet, isolated from healthy donors, patients in remission after chemotherapy and AML patients at diagnosis. Using the OP9-DL1 in vitro co-culture system and agonist selection, TCR-transduced HSPC develop into mature tumor antigen-specific T-cells with only one TCR. We show here that this approach is feasible with adult HSPC from clinically relevant sources, albeit with slower maturation and lower cell yield compared to cord blood HSPC. Moreover, cryopreservation of HSPC does not have an effect on cell numbers or functionality of the generated T-cells. In conclusion, we show here that it is feasible to generate TA-specific T-cells from HSPC from adult healthy donors and patients and we believe these T-cells could be of use as a very valuable form of patient-tailored T-cell immunotherapy.
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Affiliation(s)
- Sarah Bonte
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Stijn De Munter
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Glenn Goetgeluk
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Joline Ingels
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Melissa Pille
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Lore Billiet
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Tom Taghon
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Georges Leclercq
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Bart Vandekerckhove
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Tessa Kerre
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,Cancer Research Institute Ghent (CRIG), Ghent, Belgium.,Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.,Department of Hematology, Ghent University Hospital, Ghent, Belgium
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20
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De Munter S, Van Parys A, Bral L, Ingels J, Goetgeluk G, Bonte S, Pille M, Billiet L, Weening K, Verhee A, Van der Heyden J, Taghon T, Leclercq G, Kerre T, Tavernier J, Vandekerckhove B. Rapid and Effective Generation of Nanobody Based CARs using PCR and Gibson Assembly. Int J Mol Sci 2020; 21:ijms21030883. [PMID: 32019116 PMCID: PMC7037261 DOI: 10.3390/ijms21030883] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 01/20/2020] [Accepted: 01/28/2020] [Indexed: 12/25/2022] Open
Abstract
Recent approval of chimeric antigen receptor (CAR) T cell therapy by the European Medicines Agency (EMA)/Federal and Drug Administration (FDA) and the remarkable results of CAR T clinical trials illustrate the curative potential of this therapy. While CARs against a multitude of different antigens are being developed and tested (pre)clinically, there is still a need for optimization. The use of single-chain variable fragments (scFvs) as targeting moieties hampers the quick generation of functional CARs and could potentially limit the efficacy. Instead, nanobodies may largely circumvent these difficulties. We used an available nanobody library generated after immunization of llamas against Cluster of Differentiation (CD) 20 through DNA vaccination or against the ectodomain of CD33 using soluble protein. The nanobody specific sequences were amplified by PCR and cloned by Gibson Assembly into a retroviral vector containing two different second-generation CAR constructs. After transduction in T cells, we observed high cell membrane nanoCAR expression in all cases. Following stimulation of nanoCAR-expressing T cells with antigen-positive cell lines, robust T cell activation, cytokine production and tumor cell lysis both in vitro and in vivo was observed. The use of nanobody technology in combination with PCR and Gibson Assembly allows for the rapid and effective generation of compact CARs.
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Affiliation(s)
- Stijn De Munter
- Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
| | - Alexander Van Parys
- Cytokine Receptor Laboratory, Flanders Institute of Biotechnology, VIB-UGent Center for Medical Biotechnology, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium
| | - Layla Bral
- Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
| | - Joline Ingels
- Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
| | - Glenn Goetgeluk
- Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
| | - Sarah Bonte
- Department of Internal Medicine and Pediatrics, Ghent University, 9000 Ghent, Belgium
| | - Melissa Pille
- Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
| | - Lore Billiet
- Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
| | - Karin Weening
- Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
| | - Annick Verhee
- Cytokine Receptor Laboratory, Flanders Institute of Biotechnology, VIB-UGent Center for Medical Biotechnology, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium
| | - Jose Van der Heyden
- Cytokine Receptor Laboratory, Flanders Institute of Biotechnology, VIB-UGent Center for Medical Biotechnology, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium
| | - Tom Taghon
- Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
| | - Georges Leclercq
- Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
| | - Tessa Kerre
- Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, 9000 Ghent, Belgium
| | - Jan Tavernier
- Cytokine Receptor Laboratory, Flanders Institute of Biotechnology, VIB-UGent Center for Medical Biotechnology, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium
| | - Bart Vandekerckhove
- Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
- Correspondence:
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21
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Vandenhaute J, Avau A, Filtjens J, Malengier-Devlies B, Imbrechts M, Van den Berghe N, Ahmadzadeh K, Mitera T, Boon L, Leclercq G, Wouters C, Matthys P. Regulatory Role for NK Cells in a Mouse Model of Systemic Juvenile Idiopathic Arthritis. J Immunol 2019; 203:3339-3348. [PMID: 31676671 DOI: 10.4049/jimmunol.1900510] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 10/04/2019] [Indexed: 12/14/2022]
Abstract
Mice deficient in IFN-γ (IFN-γ knockout [KO] mice) develop a systemic inflammatory syndrome in response to CFA, in contrast to CFA-challenged wild-type (WT) mice who only develop a mild inflammation. Symptoms in CFA-challenged IFN-γ KO resemble systemic juvenile idiopathic arthritis (sJIA), a childhood immune disorder of unknown cause. Dysregulation of innate immune cells is considered to be important in the disease pathogenesis. In this study, we used this murine model to investigate the role of NK cells in the pathogenesis of sJIA. NK cells of CFA-challenged IFN-γ KO mice displayed an aberrant balance of activating and inhibitory NK cell receptors, lower expression of cytotoxic proteins, and a defective NK cell cytotoxicity. Depletion of NK cells (via anti-IL-2Rβ and anti-Asialo-GM1 Abs) or blockade of the NK cell activating receptor NKG2D in CFA-challenged WT mice resulted in increased severity of systemic inflammation and appearance of sJIA-like symptoms. NK cells of CFA-challenged IFN-γ KO mice and from anti-NKG2D-treated mice showed defective degranulation capacities toward autologous activated immune cells, predominantly monocytes. This is in line with the increased numbers of activated inflammatory monocytes in these mice which was particularly reflected in the expression of CCR2, a chemokine receptor, and in the expression of Rae-1, a ligand for NKG2D. In conclusion, NK cells are defective in a mouse model of sJIA and impede disease development in CFA-challenged WT mice. Our findings point toward a regulatory role for NK cells in CFA-induced systemic inflammation via a NKG2D-dependent control of activated immune cells.
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Affiliation(s)
- Jessica Vandenhaute
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium
| | - Anneleen Avau
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium
| | - Jessica Filtjens
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium
| | - Bert Malengier-Devlies
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium
| | - Maya Imbrechts
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium
| | - Nathalie Van den Berghe
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium
| | - Kourosh Ahmadzadeh
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium
| | - Tania Mitera
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium
| | | | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, 9000 Ghent, Belgium; and
| | - Carine Wouters
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium.,Division of Pediatric Rheumatology, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Patrick Matthys
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium;
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22
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Van Crombruggen K, Taveirne S, Holtappels G, Leclercq G, Bachert C. Innate lymphoid cells in the upper airways: importance of CD117 and IL-1RI expression. Eur Respir J 2018; 52:13993003.00742-2018. [PMID: 30385529 DOI: 10.1183/13993003.00742-2018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 10/03/2018] [Indexed: 11/05/2022]
Abstract
Although type 1, 2 and 3 innate lymphoid cells (ILC1s, ILC2s and ILC3s, respectively) are emerging as important cell populations regulating tissue homeostasis, remodelling and inflammation, a vast majority of our knowledge stems from in vitro and murine experiments, and requires thorough confirmation in human diseases.Relative levels of ILCs were evaluated by means of flow cytometry in freshly resected human upper airways mucosa of patients with chronic rhinosinusitis without nasal polyps (CRSsNP) and with nasal polyps (CRSwNP), taking into account the patient's clinical parameters and disease comorbidities.We report that the CD117 and interleukin-receptor type I (IL-1RI) expression status of human ILC2s depends on the local tissue environment. Only CD117+ IL-1RI+ ILC2s, exclusively present in CRSwNP, possess an interrelationship with type 2 T-helper cell cytokine and eosinophil levels in human upper airway mucosa. In CRSsNP, mainly CD117-IL-1RI- ILC2s are increased, yielding lower eosinophilia in this disease despite the high levels of ILC2s.These data unveil that the CD117- and CD117+ fractions within the native human ILC2 population are not a random phenomenon, in contrast to what could be concluded from in vitro data, and that the IL-1RI expression is not ubiquitous in ILC2s in vivo in humans, which cannot be assessed via in vitro and murine experiments.
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Affiliation(s)
- Koen Van Crombruggen
- Upper Airway Research Laboratory, Dept of Otorhinolaryngology, Ghent University Hospital, Ghent, Belgium
| | - Sylvie Taveirne
- Laboratory of Experimental Immunology, Ghent University, Ghent, Belgium
| | - Gabriele Holtappels
- Upper Airway Research Laboratory, Dept of Otorhinolaryngology, Ghent University Hospital, Ghent, Belgium
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Ghent University, Ghent, Belgium
| | - Claus Bachert
- Upper Airway Research Laboratory, Dept of Otorhinolaryngology, Ghent University Hospital, Ghent, Belgium.,Division of ENT Diseases, CLINTEC, Karolinska Institute, University of Stockholm, Stockholm, Sweden
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23
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Abstract
Acromioclavicular dislocation is a frequent pathology commonly encountered in traumatology. Therefore, its management is generally standardized, guided by clinical and radiological evaluation. This can range from conservative treatment by limb immobilization and functional rehabilitation, to surgical treatment by using minimally invasive techniques. We present the particular case of a 74-year-old patient with an acromioclavicular dislocation associated with a non-displaced fracture of the coracoid process as well as of the spine of the scapula. This article aims to describe the diagnostic traps as well as discuss the treatment options for this complex presentation.
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Affiliation(s)
- J Juanos Cabanas
- Service de Chirurgie orthopédique et Traumatologie, C.H.U. Tivoli, La Louvière
| | - H Jennart
- Service de Chirurgie orthopédique et Traumatologie, C.H.U. Tivoli, La Louvière
| | - G Leclercq
- Service de Chirurgie orthopédique et Traumatologie, C.H.U. Tivoli, La Louvière
| | - D Zorman
- Service de Chirurgie orthopédique et Traumatologie, C.H.U. Tivoli, La Louvière
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24
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Van Acker A, Gronke K, Biswas A, Martens L, Saeys Y, Filtjens J, Taveirne S, Van Ammel E, Kerre T, Matthys P, Taghon T, Vandekerckhove B, Plum J, Dunay IR, Diefenbach A, Leclercq G. A Murine Intestinal Intraepithelial NKp46-Negative Innate Lymphoid Cell Population Characterized by Group 1 Properties. Cell Rep 2018; 19:1431-1443. [PMID: 28514662 DOI: 10.1016/j.celrep.2017.04.068] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 03/22/2017] [Accepted: 04/24/2017] [Indexed: 12/19/2022] Open
Abstract
The Ly49E receptor is preferentially expressed on murine innate-like lymphocytes, such as epidermal Vγ3 T cells, intestinal intraepithelial CD8αα+ T lymphocytes, and CD49a+ liver natural killer (NK) cells. As the latter have recently been shown to be distinct from conventional NK cells and have innate lymphoid cell type 1 (ILC1) properties, we investigated Ly49E expression on intestinal ILC populations. Here, we show that Ly49E expression is very low on known ILC populations, but it can be used to define a previously unrecognized intraepithelial innate lymphoid population. This Ly49E-positive population is negative for NKp46 and CD8αα, expresses CD49a and CD103, and requires T-bet expression and IL-15 signaling for differentiation and/or survival. Transcriptome analysis reveals a group 1 ILC gene profile, different from NK cells, iCD8α cells, and intraepithelial ILC1. Importantly, NKp46-CD8αα-Ly49E+ cells produce interferon (IFN)-γ, suggesting that this previously unrecognized population may contribute to Th1-mediated immunity.
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Affiliation(s)
- Aline Van Acker
- Laboratory of Experimental Immunology, Ghent University, 9000 Ghent, Belgium; Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Konrad Gronke
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany; Max-Planck-Institute of Immunobiology and Epigenetics, 79108 Freiburg, Germany
| | - Aindrila Biswas
- Institute of Inflammation and Neurodegeneration, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany
| | | | - Yvan Saeys
- VIB Inflammation Research Centre, 9000 Ghent, Belgium
| | - Jessica Filtjens
- Laboratory of Experimental Immunology, Ghent University, 9000 Ghent, Belgium
| | - Sylvie Taveirne
- Laboratory of Experimental Immunology, Ghent University, 9000 Ghent, Belgium
| | - Els Van Ammel
- Laboratory of Experimental Immunology, Ghent University, 9000 Ghent, Belgium
| | - Tessa Kerre
- Laboratory of Experimental Immunology, Ghent University, 9000 Ghent, Belgium
| | - Patrick Matthys
- Laboratory of Immunobiology, Rega Institute for Medical Research, Department of Microbiology and Immunology, KU Leuven - University of Leuven, 3000 Leuven, Belgium
| | - Tom Taghon
- Laboratory of Experimental Immunology, Ghent University, 9000 Ghent, Belgium
| | - Bart Vandekerckhove
- Laboratory of Experimental Immunology, Ghent University, 9000 Ghent, Belgium
| | - Jean Plum
- Laboratory of Experimental Immunology, Ghent University, 9000 Ghent, Belgium
| | - Ildiko Rita Dunay
- Institute of Inflammation and Neurodegeneration, Otto-von-Guericke University Magdeburg, 39120 Magdeburg, Germany
| | - Andreas Diefenbach
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany; Department of Microbiology, Charité - University Medical Centre Berlin, 12203 Berlin, Germany
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Ghent University, 9000 Ghent, Belgium.
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25
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Abstract
Breast cancer remains a major cause of death in women from Western countries. In the near future, advances in both nucleic acids technology and tumor biology should be widely exploited to improve the diagnosis, prognosis, and outcome prediction of this disease. The DNA microarray, also called biochip, is a promising tool for performing massive, simultaneous, fast, and standardized analyses of multiple molecular markers in tumor samples. However, most currently available microarrays are expensive, which is mainly due to the amount (several thousands) of different DNA capture sequences that they carry. While these high-density microarrays are best suited for basic studies, their introduction into the clinical routine remains hypothetical. We describe here the principles of a low-density microarray, carrying only a few hundreds of capture sequences specific to markers whose importance in breast cancer is generally recognized or suggested by the current medical literature. We provide a list of about 250 of these markers. We also examine some potential difficulties (homologies between marker and/or variant sequences, size of sequences, etc.) associated with the production of such a low-cost microarray.
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Affiliation(s)
- M. Lacroix
- Laboratoire Jean-Claude Heuson de Cancérologie Mammaire, Institut Jules Bordet, Université Libre de Bruxelles
| | - N. Zammatteo
- Laboratoire de Biochimie et de Biologie Cellulaire, Facultés Universitaires Notre Dame de la Paix, Namur - Belgium
| | - J. Remacle
- Laboratoire de Biochimie et de Biologie Cellulaire, Facultés Universitaires Notre Dame de la Paix, Namur - Belgium
| | - G. Leclercq
- Laboratoire Jean-Claude Heuson de Cancérologie Mammaire, Institut Jules Bordet, Université Libre de Bruxelles
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26
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De Pelsmaeker S, Devriendt B, Leclercq G, Favoreel HW. Porcine NK cells display features associated with antigen-presenting cells. J Leukoc Biol 2017; 103:129-140. [DOI: 10.1002/jlb.4a0417-163rr] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 10/11/2017] [Accepted: 10/12/2017] [Indexed: 01/01/2023] Open
Affiliation(s)
- Steffi De Pelsmaeker
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine; Ghent University; Ghent Belgium
| | - Bert Devriendt
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine; Ghent University; Ghent Belgium
| | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences; Ghent University; Ghent Belgium
| | - Herman W. Favoreel
- Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine; Ghent University; Ghent Belgium
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27
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González-Hernández A, Borloo J, Peelaers I, Casaert S, Leclercq G, Claerebout E, Geldhof P. Comparative analysis of the immune responses induced by native versus recombinant versions of the ASP-based vaccine against the bovine intestinal parasite Cooperia oncophora. Int J Parasitol 2017; 48:41-49. [PMID: 28859849 DOI: 10.1016/j.ijpara.2017.07.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/28/2017] [Accepted: 07/03/2017] [Indexed: 11/25/2022]
Abstract
The protective capacities of a native double-domain activation-associated secreted protein (ndd-ASP)-based vaccine against the cattle intestinal nematode Cooperia oncophora has previously been demonstrated. However, protection analysis upon vaccination with a recombinantly produced antigen has never been performed. Therefore, the aim of the current study was to test the protective potential of a Pichia-produced double-domain ASP (pdd-ASP)-based vaccine against C. oncophora. Additionally, we aimed to compare the cellular and humoral mechanisms underlying the vaccine-induced responses by the native (ndd-ASP) and recombinant vaccines. Immunisation of cattle with the native C. oncophora vaccine conferred significant levels of protection after an experimental challenge infection, whereas the recombinant vaccine did not. Moreover, vaccination with ndd-ASP resulted in a higher proliferation of CD4-T cells both systemically and in the small intestinal mucosa when compared with animals vaccinated with the recombinant antigen. In terms of humoral response, although both native and recombinant vaccines induced similar levels of antibodies, animals vaccinated with the native vaccine were able to raise antibodies with greater specificity towards ndd-ASP in comparison with antibodies raised by vaccination with the recombinant vaccine, suggesting a differential immune recognition towards the ndd-ASP and pdd-ASP. Finally, the observation that animals displaying antibodies with higher percentages of recognition towards ndd-ASP also exhibited the lowest egg counts suggests a potential relationship between antibody specificity and protection.
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Affiliation(s)
- Ana González-Hernández
- Laboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium
| | - Jimmy Borloo
- Laboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium
| | - Iris Peelaers
- Laboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium
| | - Stijn Casaert
- Laboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Belgium
| | - Edwin Claerebout
- Laboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium
| | - Peter Geldhof
- Laboratory of Parasitology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Sciences, Ghent University, Belgium.
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28
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De Benedetti F, Anton J, Gattorno M, Lachmann H, Kone-Paut I, Ozen S, Frenkel J, Simon A, Zeft A, Ben-Chetrit E, Hoffman HM, Joubert Y, Lheritier K, Speziale A, Guido J, Caorsi R, Penco F, Grossi A, Insalaco A, Alessio M, Conti G, Marchetti F, Tommasini A, Martino S, Gallizzi R, Salis A, Schena F, Caroli F, Martini A, Damonte G, Ceccherini I, Gattorno M, Frémond ML, Uggenti C, Van Eyck L, Melki I, Duffy D, Bondet V, Rose Y, Neven B, Crow Y, Rodero MP, Kusche Y, Roth J, Barczyk-Kahlert K, Ferrara G, Chiocchetti A, Polizzi S, Vuch J, Vozzi D, Mondino A, Valencic E, Pastore S, Taddio A, Faletra F, Dianzani U, Ramenghi U, Tommasini A, Zhou Q, Yu X, Demirkaya E, Deuitch N, Stone D, Tsai W, Ombrello A, Romeo T, Remmers EF, Chae J, Gadina M, Welch S, Ozen S, Topaloglu R, Abinun M, Kastner DL, Aksentijevich I, Vairo D, Ferraro RM, Zani G, Galli J, De Simone M, Cattalini M, Fazzi E, Giliani S, Omoyinmi E, Standing A, Rowczenio D, Keylock A, Gomes SM, Price-Kuehne F, Nanthapisal S, Murphy C, Cullup T, Jenkins L, Gilmour K, Eleftheriou D, Lachmann H, Hawkins P, Klein N, Brogan P, Nikolayenko VB, Şahin K, Karaaslan Y, Civino A, Alighieri G, Davì S, Rondelli R, Martino S, Filocamo G, Magnolato A, Dhanrajani A, Ricci F, Gallizzi R, Olivieri A, Gerloni V, Lattanzi B, Soscia F, De Fanti A, Manzoni SM, Citiso S, Quartulli L, Chan M, La Torre F, Rigante D, Maggio MC, Marsili M, Pelagatti MA, Conter V, Fagioli F, Lepore L, Pession A, Ravelli A, Pau S, Consolaro A, Ruperto N, Garrone M, Rinaldi M, De Inocencio J, Demirkaya E, Garay S, Foell D, Lovell DJ, Lazar C, Ellsworth J, Nielsen S, Flato B, Martini A, Ravelli A, Marasco E, Aquilani A, Cascioli S, Caiello I, Moneta GM, Pires-Marafón D, Guzman J, Magni-Manzoni S, Carsetti R, De Benedetti F, Robinson E, Albani S, Beresford MW, de Jager W, de Roock S, Duong T, Ellis J, Aeschlimann FA, Hyrich K, Jervis L, Lovell D, Marshall L, Mellins ED, Minden K, Munro J, Nigrovic PA, Palman J, Roth J, Twilt M, Ruperto N, Sampath S, Schanberg LE, Thompson SD, Thomson W, Vesely R, Wallace C, Williams C, Wu Q, Wulffraat N, Eng SW, Yeung RSM, Prakken B, Wedderburn LR, Horneff G, Seyger MB, Arikan D, Kalabic J, Anderson JK, Lazar A, Williams DA, Sheikh S, Wang C, Tarzynski-Potempa R, Hymans JS, Simonini G, Scoccimarro E, Pontikaki I, Ferrara G, Giani T, Ventura A, Meroni PL, Laxer RM, Cimaz R, Minnone G, Soligo M, Caiello I, Prencipe G, Marafon DP, Magni-Manzoni S, Manni L, De Benedetti F, Laudiero LB, Hebert D, Groot N, Grein I, Wulffraat NM, Schepp R, Berbers G, de Souza CCBS, Ferriani VPL, Pileggi G, de Roock S, Grein IHR, Noone D, Scala S, Patrone E, Schoemaker C, Costello W, Wulffraat N, Parsons S, McDonagh J, Thomson W, Cohen JD, Bentayou D, Pagnoux C, Brunel MAB, Trope S, Klotsche J, Listing M, Niewerth M, Horneff G, Thon A, Huppertz HI, Mönkemöller K, Foeldvari I, Benseler SM, Föll D, Minden K, Marino A, Stagi S, Carli N, Bertini F, Giani T, Simonini G, Cimaz R, Díaz-Maldonado AS, Yeung RS, Pino S, Guarnizo P, Torres-Jimenez AR, Sanchez-Jara B, Solis-Vallejo E, Cespedes-Cruz AI, Zeferino-Cruz M, Ramirez-Miramontes JV, Kumar A, Gupta A, Kessel C, Suri D, Rawat A, Kakkar N, Singh S, Makay B, Gücenmez ÖA, Ünsal E, Magnusson B, Mördrup K, Vermé A, Lippitz K, Peterson C, Freychet C, Stephan JL, Hofer M, Belot A, Harkness CE, Rooney M, Foster L, Henry E, Taggart P, Weinhage T, Simsek D, Ozkececi CF, Kurt E, Basbozkurt G, Gok F, Demirkaya E, Gorczyca D, Postępski J, Czajkowska A, Szponar B, Hinze C, Paściak M, Gruenpeter A, Lachór-Motyka I, Augustyniak D, Olesińska E, Asuka ES, Golovko T, Aliejim SU, Clemente EI, Jimenez EI, Wittkowski H, Hernandez JC, Fernandez SB, Roca CG, Romo DM, Nieva NR, Angarita JMM, Lopez JA, Nuñez-Cuadros E, Diaz-Cordovés G, Galindo-Zavala R, Holzinger D, Urda-Cardona A, Fernández-Nebro A, Quesada-Masachs E, de la Sierra DÁ, Prat MG, Gallo MM, Borrell RP, Barril SM, Sánchez AMM, Caballero CM, Grün N, Merlin E, Breton S, Fraitag S, Stephan JL, Wouters C, Bodemer C, Bader-Meunier B, Baldo F, Annoni F, Di Landro G, Föll D, Torreggiani S, Torcoletti M, Petaccia A, Corona F, Filocamo G, Tiller G, Buckle J, Munro J, Cox A, Gowdie P, Van Dijkhuizen P, Allen RC, Akikusa JD, Hernández-Huirache HG, Rodea-Montero ER, Cohen JD, Belot A, Fahy W, Quartier P, Sordet C, Trope S, Del Chierico F, Berggren KB, Kembe JT, Bos J, Armbrust W, Wulffraat N, van Brussel M, Cappon J, Dijkstra P, Geertzen J, Legger E, Malattia C, van Rossum M, Sauer P, Lelieveld O, Ozturk K, Buluc L, Akansel G, Muezzinoglu B, Ekinci Z, Rychkova L, Knyazeva T, Russo A, Pogodina A, Belova T, Mandzyak T, Kulesh E, Cafarotti A, Marsili M, Giannini C, Salvatore R, Lapergola G, Di Battista C, Marafon DP, Marcovecchio ML, Basilico R, Pelliccia P, Chiarelli F, Breda L, Almeida B, Tansley S, Simou S, Gunawardena H, McHugh N, ter Haar NM, Wedderburn L, Aouizerate J, Bader-Meunier B, De Antonio M, Bodemer C, Barnerias C, Bassez G, Desguerre I, Quartier P, Gherardi R, Magni-Manzoni S, Charuel JL, Authier FJ, Gitiaux C, Spencer CH, Aziz RA, Yu CY, Adler B, Bout-Tabaku S, Lintner K, Moore-Clingenpeel M, Vastert SJ, Boros C, McCann L, Ambrose N, Cortina-Borja M, Simou S, Pilkington C, Wedderburn L, Hinze C, Oommen PT, Speth F, Dallapiccola B, Haas JP, Hinze C, Oommen PT, Speth F, Haas JP, Speth F, Haas JP, Hinze C, Lavarello C, Giancane G, Prakken B, Pistorio A, Rider L, Aggarwal R, Oliveira SK, Cuttica R, Fischbach M, Sterba G, Brochard K, Dressler F, Barone P, Martini A, Burgos-Vargas R, Chalom EC, Desjonqueres M, Espada G, Fasth A, Garay SM, Herbigneaux RM, Hoyoux C, Deslandre CJ, Miller FW, De Benedetti F, Vencovsky J, Ravelli A, Martini A, Ruperto N, Sag E, Ozen S, Kale G, Topaloglu H, Talim B, Giancane G, Putignani L, Lavarello C, Pistorio A, Zulian F, Magnusson B, Avcin T, Corona F, Gerloni V, Pastore S, Marini R, Martino S, Fidanci BE, Pagnier A, Rodiere M, Soler C, Stanevicha V, Ten Cate R, Uziel Y, Vojinovic J, Ravelli A, Martini A, Ruperto N, Barut K, Villarreal AV, Acevedo N, Diaz T, Ramirez Y, Faugier E, Maldonado R, Arabshahi B, Lee JH, Leibowitz I, Okong’o LO, Arıcı S, Wilmshurst J, Esser M, Scott C, Batu ED, Emiroglu N, Sonmez HE, Tugcu GD, Arici ZS, Yalcin E, Dogru D, Simsek D, Ozcelik U, Bilginer Y, Haliloglu M, Kiper N, Ozen S, Yashiro M, Yamada M, Yabuuchi T, Kikkawa T, Nosaka N, Cakan M, Fujii Y, Saito Y, Tsukahara H, Al-Mayouf SM, AlMutiari N, Muzaffer M, shehata R, Al-Wahadneh A, Abdwani R, Al-Abrawi S, Batu ED, Abu-shukair M, El-Habahbeh Z, Alsonbul A, Szabat A, Chęć M, Opoka-Winiarska V, Kumar A, Gupta A, Rawat A, Saikia B, Şahin S, Minz RW, Suri D, Singh S, Arango C, Malagon C, Gomez MDP, Mosquera AC, Yepez R, Gonzalez T, Vargas C, Kısaarslan A, Zulian F, Balzarin M, Castaldi B, Reffo E, Sperotto F, Martini G, Meneghel A, Milanesi O, Foeldvari I, Klotsche J, Yilmaz E, Kasapçopur O, Adrovic A, Stanevicha V, Terreri MT, Alexeeva E, Katsicas M, Cimaz R, Kostik M, Lehman T, Sifuentes-Giraldo WA, Basaran Ö, Smith V, Sztajnbok F, Avcin T, Santos MJ, Nemcova D, Battagliotti C, Eleftheriou D, Harel L, Janarthanan M, Kallinich T, Demir F, Lopez JA, Minden K, Nielsen S, Torok K, Uziel Y, Helmus N, Foeldvari I, Baildem E, Blakley M, Boros C, Ozturk K, Fligelstone K, Kienast A, Nemcova D, Pain C, Saracino A, Simoni G, Torok K, Weibel L, Helmus N, Foeldvari I, Gunduz Z, Klotsche J, Kasapçopur O, Adrovic A, Stanevicha V, Terreri MT, Alexeeva E, Katsicas M, Cimaz R, Kostik M, Lehman T, Sozeri B, Sifuentes-Giraldo WA, Smith V, Sztajnbok F, Avcin T, Santos MJ, Nemcova D, Battagliotti C, Eleftheriou D, Harel L, Janarthanan M, Makay B, Kallinich T, Lopez JA, Minden K, Nielsen S, Torok K, Uziel Y, Helmus N, Osminina MK, Geppe NA, Niconorova OV, Ayaz N, Karashtina OV, Abbyasova OV, Shpitonkova OV, Adrovic A, Sahin S, Barut K, Durmus S, Uzun H, Kasapcopur O, Foeldvari I, Yavascan O, Klotsche J, Kasapçopur O, Adrovic A, Stanevicha V, Terreri MT, Alexeeva E, Katsicas M, Cimaz R, Kostik M, Lehman T, Aydog O, Sifuentes-Giraldo WA, Smith V, 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N, Belot A, Jeziorski E, Duffy D, Bessis D, Cros G, Rice GI, Charbit B, Hulin A, Khoudour N, Caballero CM, Bodemer C, Fabre M, Berteloot L, Le Bourgeois M, Reix P, Walzer T, Moshous D, Blanche S, Fischer A, Bader-Meunier B, Rieux-Laucat F, Crow Y, Neven B, Annink K, ter Haar N, Al-Mayouf S, Amaryan G, Anton J, Barron K, Benseler S, Brogan P, Cantarini L, Cattalini M, Cochino A, De Benedetti F, Dedeoglu F, De Jesus A, Dellacasa O, Demirkaya E, Dolezalova P, Durrant K, Fabio G, Gallizzi R, Goldbach-Mansky R, Hachulla E, Hentgen V, Herlin T, Hofer M, Hoffman H, Insalaco A, Jansson A, Kallinich T, Koné-Paut I, Kozlova A, Kuemmerle-Deschner J, Lachmann H, Laxer R, Martini A, Nielsen S, Nikishina I, Ombrello A, Ozen S, Papadopoulou-Alataki E, Quartier P, Ravelli A, Rigante D, Russo R, Simon A, Trachana M, Uziel Y, Gattorno M, Frenkel J, ter Haar N, Jeyaratnam J, Lachmann H, Simon A, Brogan P, Doglio M, Cattalini M, Anton J, Modesto C, Quartier P, Hoppenreijs E, Martino S, Insalaco A, 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C, Doglio M, Malattia C, Ravelli A, Martini A, Garaventa A, Gattorno M, Bertoni A, Carta S, Balza E, Castellani P, Pellecchia C, Penco F, Schena F, Borghini S, Trotta ML, Pastorino C, Ceccherini I, Martini A, Gattorno M, Rubartelli A, Chiesa S, Guzman J, Henrey A, Loughin T, Berard R, Shiff N, Jurencak R, Benseler S, Tucker L, Papadopoulou C, Hong Y, Krol P, Ioannou Y, Pilkington C, Chaplin H, Simou S, Charakida M, Wedderburn L, Brogan P, Eleftheriou D, Spiegel LR, Kohut SA, Stinson J, Forgeron P, Kaufman M, Luca N, Amaria K, Bell M, Swart J, Boris F, Castagnola E, Groll A, Giancane G, Horneff G, Huppertz HI, Lovell D, Wolfs T, Hofer M, Alekseeva E, Panaviene V, Nielsen S, Anton J, Uettwiller F, Stanevicha V, Trachana M, De Benedetti F, Ailioaie LM, Tsitami E, Kamphuis S, Herlin T, Dolezalova P, Susic G, Sztajnbok F, Flato B, Pistorio A, Martini A, Wulffraat N, Ruperto N, Shoop SJW, Verstappen SMM, McDonagh JE, Thomson W, Hyrich KL, Tarkiainen M, Tynjala P, Lahdenne P, Martikainen J, Wilkinson M, Piper C, Otto G, Deakin CT, Dowle S, Simou S, Kelberman D, Ioannou Y, Mauri C, Jury E, Isenberg D, Wedderburn LR, Nistala K, Foeldvari I, Ruperto N, Lovell DJ, Horneff G, Huppertz HI, Quartier P, Simonini G, Bereswill M, Kalabic J, Martini A, Brunner HI, Oen K, Guzman J, Feldman BM, Dufault B, Lee J, Shiff N, Duffy KW, Tucker L, Duffy C, Ruperto N, Lovell DJ, Tzaribachev N, Vega-Cornejo G, Louw I, Berman A, Calvo I, Cuttica R, Horneff G, Avila-Zapata F, Anton J, Cimaz R, Solau-Gervais E, Joos R, Espada G, Li X, Nys M, Wong R, Banerjee S, Martini A, Brunner HI, Nicolai R, Marafon DP, Verardo M, D’Amico A, Bracci-Laudiero L, De Benedetti F, Moneta GM, Belot A, Rice G, Mathieu AL, Omarjee SO, Bader-Meunier B, Walzer T, Briggs TA, O’Sullivan J, Williams S, Cimaz R, Smith E, Beresford MW, Crow YJ, Rooney M, Bishop N, davidson J, pilkington C, Beresford M, Clinch J, Satyapal R, Foster H, Medwin JG, McDonagh J, Wyatt S, Modignani VL, Baldo F, Lanni S, Consolaro A, Ravelli A, 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Lehmann H, Ganser G, Berendes R, Haller M, Krumrey-Langkammerer M, Nimtz-Talaska A, Schoof P, Trauzeddel RF, Nirschl C, Quesada-Masachs E, Blancafort CA, Barril SM, Caballero CM, Aguiar F, Fonseca R, Alves D, Vieira A, Vieira A, Dias JA, Brito I, Susic G, Milic V, Radunovic G, Boricic I, Marteau P, Adamsbaum C, Rossi-Semerano L, De Bandt M, Lemelle I, Deslandre C, Tran TA, Lohse A, Solau-Gervais E, Pillet P, Bader-Meunier B, Wipff J, Gaujoux-Viala C, Breton S, Devauchelle-Pensec V, Gran S, Fehler O, Zenker S, Schäfers M, Roth J, Vogl T, Czitrom SG, Foell D, Holzinger D, Lanni S, Van Dijkhuizen EHP, Manzoni SM, Marafon DP, Magnaguagno F, de Horatio LT, Ter Haar NM, Littooij AS, Vastert SJ, De Benedetti F, Ravelli A, Martini A, Malattia C, Teixeira VA, Campanilho-Marques R, Mourão AF, Ramos FO, Costa M, Madan WA, Killeen OG, Vidal AR, Delgado DS, Fernandez MIG, Montesinos BL, Penades IC, Kozhevnikov A, Pozdeeva N, Konev M, Melchenko E, Kenis V, Novik G, Sozeri B, Kısaarslan AP, Gunduz Z, Poyrazoglu H, Dusunsel R, Lerkvaleekul B, Jaovisidha S, Sungkarat W, Chitrapazt N, Fuangfa P, Ruangchaijatuporn T, Vilaiyuk S, Pradsgaard DØ, Hørlyck A, Spannow AH, Heuck CW, Herlin T, Diaz T, Garcia F, De La Cruz L, Rubio N, Świdrowska-Jaros J, Smolewska E, Lamot M, Lamot L, Vidovic M, Bosak EP, Rados I, Harjacek M, Tzaribachev N, Louka P, Hagoug R, Trentin C, Kubassova O, Hinton M, Boesen M, Oshlianska OA, Chaikovsky IA, Mjasnikov G, Kazmirchyk A, Garagiola U, Borzani I, Cressoni P, Corona F, Dzsida E, Farronato G, Garagiola U, Cressoni P, Corona F, Petaccia A, Dzsida E, Farronato G, Gagro A, Pasini AM, Roic G, Vrdoljak O, Lujic L, Zutelija-Fattorini M, Esser MM, Abraham DR, Kinnear C, Durrheim G, Urban M, Hoal E, Crow Y, Oshlianska OA. Proceedings of the 23rd Paediatric Rheumatology European Society Congress: part one. Pediatr Rheumatol Online J 2017. [PMCID: PMC5461530 DOI: 10.1186/s12969-017-0141-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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Verstichel G, Vermijlen D, Martens L, Goetgeluk G, Brouwer M, Thiault N, Van Caeneghem Y, De Munter S, Weening K, Bonte S, Leclercq G, Taghon T, Kerre T, Saeys Y, Van Dorpe J, Cheroutre H, Vandekerckhove B. The checkpoint for agonist selection precedes conventional selection in human thymus. Sci Immunol 2017; 2:2/8/eaah4232. [PMID: 28783686 DOI: 10.1126/sciimmunol.aah4232] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 11/07/2016] [Accepted: 01/11/2017] [Indexed: 11/02/2022]
Abstract
The thymus plays a central role in self-tolerance, partly by eliminating precursors with a T cell receptor (TCR) that binds strongly to self-antigens. However, the generation of self-agonist-selected lineages also relies on strong TCR signaling. How thymocytes discriminate between these opposite outcomes remains elusive. Here, we identified a human agonist-selected PD-1+ CD8αα+ subset of mature CD8αβ+ T cells that displays an effector phenotype associated with agonist selection. TCR stimulation of immature post-β-selection thymocyte blasts specifically gives rise to this innate subset and fixes early T cell receptor alpha variable (TRAV) and T cell receptor alpha joining (TRAJ) rearrangements in the TCR repertoire. These findings suggest that the checkpoint for agonist selection precedes conventional selection in the human thymus.
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Affiliation(s)
- Greet Verstichel
- Faculty of Medicine and Health Sciences, Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, University Hospital Ghent, MRB2, De Pintelaan 185, 9000 Ghent, Belgium
| | - David Vermijlen
- Department of Biopharmacy, Université Libre de Bruxelles (ULB), Boulevard du Triomphe, accès 2, 1050 Brussels, Belgium.,Institute for Medical Immunology, ULB, Rue Adrienne Bolland 8, 6041 Gosselies, Belgium
| | - Liesbet Martens
- Data Mining and Modeling for Systems Immunology, Vlaams Instituut voor Biotechnologie Inflammation Research Center, Technologiepark 927, 9052 Ghent, Belgium
| | - Glenn Goetgeluk
- Faculty of Medicine and Health Sciences, Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, University Hospital Ghent, MRB2, De Pintelaan 185, 9000 Ghent, Belgium
| | - Margreet Brouwer
- Institute for Medical Immunology, ULB, Rue Adrienne Bolland 8, 6041 Gosselies, Belgium
| | - Nicolas Thiault
- Division of Developmental Immunology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA
| | - Yasmine Van Caeneghem
- Faculty of Medicine and Health Sciences, Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, University Hospital Ghent, MRB2, De Pintelaan 185, 9000 Ghent, Belgium
| | - Stijn De Munter
- Faculty of Medicine and Health Sciences, Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, University Hospital Ghent, MRB2, De Pintelaan 185, 9000 Ghent, Belgium
| | - Karin Weening
- Faculty of Medicine and Health Sciences, Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, University Hospital Ghent, MRB2, De Pintelaan 185, 9000 Ghent, Belgium
| | - Sarah Bonte
- Faculty of Medicine and Health Sciences, Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, University Hospital Ghent, MRB2, De Pintelaan 185, 9000 Ghent, Belgium
| | - Georges Leclercq
- Faculty of Medicine and Health Sciences, Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, University Hospital Ghent, MRB2, De Pintelaan 185, 9000 Ghent, Belgium
| | - Tom Taghon
- Faculty of Medicine and Health Sciences, Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, University Hospital Ghent, MRB2, De Pintelaan 185, 9000 Ghent, Belgium
| | - Tessa Kerre
- Faculty of Medicine and Health Sciences, Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, University Hospital Ghent, MRB2, De Pintelaan 185, 9000 Ghent, Belgium
| | - Yvan Saeys
- Data Mining and Modeling for Systems Immunology, Vlaams Instituut voor Biotechnologie Inflammation Research Center, Technologiepark 927, 9052 Ghent, Belgium.,Department of Internal Medicine, Ghent University, De Pintelaan 185, 9000 Ghent, Belgium
| | - Jo Van Dorpe
- Faculty of Medicine and Health Sciences, Department of Medical and Forensic Pathology, Ghent University, University Hospital Ghent, De Pintelaan 185, 9000 Ghent, Belgium
| | - Hilde Cheroutre
- Division of Developmental Immunology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA
| | - Bart Vandekerckhove
- Faculty of Medicine and Health Sciences, Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, University Hospital Ghent, MRB2, De Pintelaan 185, 9000 Ghent, Belgium.
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30
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Babu D, Leclercq G, Motterlini R, Lefebvre RA. Differential Effects of CORM-2 and CORM-401 in Murine Intestinal Epithelial MODE-K Cells under Oxidative Stress. Front Pharmacol 2017; 8:31. [PMID: 28228725 PMCID: PMC5296622 DOI: 10.3389/fphar.2017.00031] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 01/16/2017] [Indexed: 12/14/2022] Open
Abstract
Carbon monoxide (CO)-releasing molecules (CO-RMs) are intensively studied to provide cytoprotective and anti-inflammatory effects of CO in inflammatory conditions including intestinal inflammation. The water-soluble CORM-A1 reduced apoptosis and NADPH oxidase (NOX)-derived reactive oxygen species (ROS) induced by tumor necrosis factor (TNF)-α/cycloheximide (CHX) in mouse MODE-K intestinal epithelial cells (IECs), without influencing TNF-α/CHX-induced mitochondrial superoxide anion (O2•–). The aim of the present study in the same model was to comparatively investigate the influence of lipid-soluble CORM-2 and water-soluble CORM-401, shown in vitro to release more CO under oxidative conditions. CORM-2 abolished TNF-α/CHX-induced total cellular ROS whereas CORM-401 partially reduced it, both partially reducing TNF-α/CHX-induced cell death. Only CORM-2 increased mitochondrial O2•– production after 2 h of incubation. CORM-2 reduced TNF-α/CHX-, rotenone- and antimycin-A-induced mitochondrial O2•– production; CORM-401 only reduced the effect of antimycin-A. Co-treatment with CORM-401 during 1 h exposure to H2O2 reduced H2O2 (7.5 mM)-induced ROS production and cell death, whereas CORM-2 did not. The study illustrates the importance of the chemical characteristics of different CO-RMs. The lipid solubility of CORM-2 might contribute to its interference with TNF-α/CHX-induced mitochondrial ROS signaling, at least in mouse IECs. CORM-401 is more effective than other CO-RMs under H2O2-induced oxidative stress conditions.
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Affiliation(s)
- Dinesh Babu
- Heymans Institute of Pharmacology, Faculty of Medicine and Health Sciences, Ghent University Ghent, Belgium
| | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University Ghent, Belgium
| | - Roberto Motterlini
- INSERM U955, Faculty of Medicine, Equipe 12 and University Paris Est Créteil, France
| | - Romain A Lefebvre
- Heymans Institute of Pharmacology, Faculty of Medicine and Health Sciences, Ghent University Ghent, Belgium
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31
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Van Caeneghem Y, De Munter S, Tieppo P, Goetgeluk G, Weening K, Verstichel G, Bonte S, Taghon T, Leclercq G, Kerre T, Debets R, Vermijlen D, Abken H, Vandekerckhove B. Antigen receptor-redirected T cells derived from hematopoietic precursor cells lack expression of the endogenous TCR/CD3 receptor and exhibit specific antitumor capacities. Oncoimmunology 2017; 6:e1283460. [PMID: 28405508 PMCID: PMC5384408 DOI: 10.1080/2162402x.2017.1283460] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 01/11/2017] [Accepted: 01/12/2017] [Indexed: 12/25/2022] Open
Abstract
Recent clinical studies indicate that adoptive T-cell therapy and especially chimeric antigen receptor (CAR) T-cell therapy is a very potent and potentially curative treatment for B-lineage hematologic malignancies. Currently, autologous peripheral blood T cells are used for adoptive T-cell therapy. Adoptive T cells derived from healthy allogeneic donors may have several advantages; however, the expected occurrence of graft versus host disease (GvHD) as a consequence of the diverse allogeneic T-cell receptor (TCR) repertoire expressed by these cells compromises this approach. Here, we generated T cells from cord blood hematopoietic progenitor cells (HPCs) that were transduced to express an antigen receptor (AR): either a CAR or a TCR with or without built-in CD28 co-stimulatory domains. These AR-transgenic HPCs were culture-expanded on an OP9-DL1 feeder layer and subsequently differentiated to CD5+CD7+ T-lineage precursors, to CD4+ CD8+ double positive cells and finally to mature AR+ T cells. The AR+ T cells were largely naive CD45RA+CD62L+ T cells. These T cells had mostly germline TCRα and TCRβ loci and therefore lacked surface-expressed CD3/TCRαβ complexes. The CD3- AR-transgenic cells were mono-specific, functional T cells as they displayed specific cytotoxic activity. Cytokine production, including IL-2, was prominent in those cells bearing ARs with built-in CD28 domains. Data sustain the concept that cord blood HPC derived, in vitro generated allogeneic CD3- AR+ T cells can be used to more effectively eliminate malignant cells, while at the same time limiting the occurrence of GvHD.
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Affiliation(s)
- Yasmine Van Caeneghem
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University , Ghent, Belgium
| | - Stijn De Munter
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University , Ghent, Belgium
| | - Paola Tieppo
- Department of Biopharmacy and Institute for Medical Immunology, Université Libre de Bruxelles (ULB) , Brussels, Belgium
| | - Glenn Goetgeluk
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University , Ghent, Belgium
| | - Karin Weening
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University , Ghent, Belgium
| | - Greet Verstichel
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University , Ghent, Belgium
| | - Sarah Bonte
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University , Ghent, Belgium
| | - Tom Taghon
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University , Ghent, Belgium
| | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University , Ghent, Belgium
| | - Tessa Kerre
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University , Ghent, Belgium
| | - Reno Debets
- Laboratory of Tumor Immunology, Department of Medical Immunology, Erasmus MC Cancer Center , Rotterdam, the Netherlands
| | - David Vermijlen
- Department of Biopharmacy and Institute for Medical Immunology, Université Libre de Bruxelles (ULB) , Brussels, Belgium
| | - Hinrich Abken
- Center for Molecular Medicine Cologne (CMMC) and Department of Internal Medicine, University of Cologne , Cologne, Germany
| | - Bart Vandekerckhove
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University , Ghent, Belgium
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32
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Babu D, Leclercq G, Motterlini R, Lefebvre RA. Differential Effects of CORM-2 and CORM-401 in Murine Intestinal Epithelial MODE-K Cells under Oxidative Stress. Front Pharmacol 2017. [PMID: 28228725 DOI: 10.3389/fphar.2017.00031/bibtex] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023] Open
Abstract
Carbon monoxide (CO)-releasing molecules (CO-RMs) are intensively studied to provide cytoprotective and anti-inflammatory effects of CO in inflammatory conditions including intestinal inflammation. The water-soluble CORM-A1 reduced apoptosis and NADPH oxidase (NOX)-derived reactive oxygen species (ROS) induced by tumor necrosis factor (TNF)-α/cycloheximide (CHX) in mouse MODE-K intestinal epithelial cells (IECs), without influencing TNF-α/CHX-induced mitochondrial superoxide anion ([Formula: see text]). The aim of the present study in the same model was to comparatively investigate the influence of lipid-soluble CORM-2 and water-soluble CORM-401, shown in vitro to release more CO under oxidative conditions. CORM-2 abolished TNF-α/CHX-induced total cellular ROS whereas CORM-401 partially reduced it, both partially reducing TNF-α/CHX-induced cell death. Only CORM-2 increased mitochondrial [Formula: see text] production after 2 h of incubation. CORM-2 reduced TNF-α/CHX-, rotenone- and antimycin-A-induced mitochondrial [Formula: see text] production; CORM-401 only reduced the effect of antimycin-A. Co-treatment with CORM-401 during 1 h exposure to H2O2 reduced H2O2 (7.5 mM)-induced ROS production and cell death, whereas CORM-2 did not. The study illustrates the importance of the chemical characteristics of different CO-RMs. The lipid solubility of CORM-2 might contribute to its interference with TNF-α/CHX-induced mitochondrial ROS signaling, at least in mouse IECs. CORM-401 is more effective than other CO-RMs under H2O2-induced oxidative stress conditions.
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Affiliation(s)
- Dinesh Babu
- Heymans Institute of Pharmacology, Faculty of Medicine and Health Sciences, Ghent University Ghent, Belgium
| | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University Ghent, Belgium
| | - Roberto Motterlini
- INSERM U955, Faculty of Medicine, Equipe 12 and University Paris Est Créteil, France
| | - Romain A Lefebvre
- Heymans Institute of Pharmacology, Faculty of Medicine and Health Sciences, Ghent University Ghent, Belgium
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33
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Put K, Vandenhaute J, Avau A, van Nieuwenhuijze A, Brisse E, Dierckx T, Rutgeerts O, Garcia‐Perez JE, Toelen J, Waer M, Leclercq G, Goris A, Van Weyenbergh J, Liston A, De Somer L, Wouters CH, Matthys P. Inflammatory Gene Expression Profile and Defective Interferon‐γ and Granzyme K in Natural Killer Cells From Systemic Juvenile Idiopathic Arthritis Patients. Arthritis Rheumatol 2016; 69:213-224. [DOI: 10.1002/art.39933] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 09/13/2016] [Indexed: 01/01/2023]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - An Goris
- University of LeuvenLeuven Belgium
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34
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Filtjens J, Coltel N, Cencig S, Taveirne S, Van Ammel E, Van Acker A, Kerre T, Matthys P, Taghon T, Vandekerckhove B, Carlier Y, Truyens C, Leclercq G. The Ly49E Receptor Inhibits the Immune Control of Acute Trypanosoma cruzi Infection. Front Immunol 2016; 7:472. [PMID: 27891126 PMCID: PMC5103623 DOI: 10.3389/fimmu.2016.00472] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 10/19/2016] [Indexed: 11/16/2022] Open
Abstract
The protozoan parasite Trypanosoma cruzi circulates in the blood upon infection and invades various cells. Parasites intensively multiply during the acute phase of infection and persist lifelong at low levels in tissues and blood during the chronic phase. Natural killer (NK) and NKT cells play an important role in the immune control of T. cruzi infection, mainly by releasing the cytokine IFN-γ that activates the microbicidal action of macrophages and other cells and shapes a protective type 1 immune response. The mechanisms by which immune cells are regulated to produce IFN-γ during T. cruzi infection are still incompletely understood. Here, we show that urokinase plasminogen activator (uPA) is induced early upon T. cruzi infection and remains elevated until day 20 post-infection. We previously demonstrated that the inhibitory receptor Ly49E, which is expressed, among others, on NK and NKT cells, is triggered by uPA. Therefore, we compared wild type (WT) to Ly49E knockout (KO) mice for their control of experimental T. cruzi infection. Our results show that young, i.e., 4- and 6-week-old, Ly49E KO mice control the infection better than WT mice, indicated by a lower parasite load and less cachexia. The beneficial effect of Ly49E depletion is more obvious in 4-week-old male than in female mice and weakens in 8-week-old mice. In young mice, the lower T. cruzi parasitemia in Ly49E KO mice is paralleled by higher IFN-γ production compared to their WT controls. Our data indicate that Ly49E receptor expression inhibits the immune control of T. cruzi infection. This is the first demonstration that the inhibitory Ly49E receptor can interfere with the immune response to a pathogen in vivo.
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Affiliation(s)
- Jessica Filtjens
- Laboratory of Experimental Immunology, Ghent University , Ghent , Belgium
| | - Nicolas Coltel
- Laboratory of Parasitology, Faculty of Medicine, Université Libre de Bruxelles , Brussels , Belgium
| | - Sabrina Cencig
- Laboratory of Parasitology, Faculty of Medicine, Université Libre de Bruxelles , Brussels , Belgium
| | - Sylvie Taveirne
- Laboratory of Experimental Immunology, Ghent University , Ghent , Belgium
| | - Els Van Ammel
- Laboratory of Experimental Immunology, Ghent University , Ghent , Belgium
| | - Aline Van Acker
- Laboratory of Experimental Immunology, Ghent University , Ghent , Belgium
| | - Tessa Kerre
- Laboratory of Experimental Immunology, Ghent University , Ghent , Belgium
| | - Patrick Matthys
- Laboratory of Immunobiology, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven - University of Leuven , Leuven , Belgium
| | - Tom Taghon
- Laboratory of Experimental Immunology, Ghent University , Ghent , Belgium
| | | | - Yves Carlier
- Laboratory of Parasitology, Faculty of Medicine, Université Libre de Bruxelles , Brussels , Belgium
| | - Carine Truyens
- Laboratory of Parasitology, Faculty of Medicine, Université Libre de Bruxelles , Brussels , Belgium
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Ghent University , Ghent , Belgium
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35
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Van Acker A, Louagie E, Filtjens J, Taveirne S, Van Ammel E, Kerre T, Elewaut D, Taghon T, Vandekerckhove B, Plum J, Leclercq G. The role of Ly49E receptor expression on murine intraepithelial lymphocytes in intestinal cancer development and progression. Cancer Immunol Immunother 2016; 65:1365-1375. [PMID: 27585789 PMCID: PMC11029008 DOI: 10.1007/s00262-016-1894-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 08/26/2016] [Indexed: 01/04/2023]
Abstract
Ly49E is a member of the Ly49 family of NK receptors and is distinct from other members of this family on the basis of its structural properties, expression pattern and ligand recognition. Importantly, Ly49E receptor expression is high on small intestinal and colonic intraepithelial lymphocytes (IELs). Intestinal IELs are regulators of the mucosal immune system and contribute to front-line defense at the mucosal barrier, including anti-tumor immune response. Whereas most Ly49 receptors have MHC class-I ligands, we showed that Ly49E is instead triggered by urokinase plasminogen activator (uPA). uPA has been extensively implicated in tumor development, where increased uPA expression correlates with poor prognosis. As such, we investigated the role of Ly49E receptor expression on intestinal IELs in the anti-tumor immune response. For this purpose, we compared Ly49E wild-type mice to Ly49E knockout mice in two established tumor models: ApcMin/+-mediated and azoxymethane-induced intestinal cancer. Our results indicate that Ly49E expression on IELs does not influence the development or progression of intestinal cancer.
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Affiliation(s)
- Aline Van Acker
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium
| | - Els Louagie
- Department of Rheumatology, Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center, Ghent University, Ghent, Belgium
| | - Jessica Filtjens
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium
| | - Sylvie Taveirne
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium
| | - Els Van Ammel
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium
| | - Tessa Kerre
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium
| | - Dirk Elewaut
- Department of Rheumatology, Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center, Ghent University, Ghent, Belgium
| | - Tom Taghon
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium
| | - Bart Vandekerckhove
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium
| | - Jean Plum
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium
| | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, De Pintelaan 185, 9000, Ghent, Belgium.
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36
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Drennan MB, Govindarajan S, Verheugen E, Coquet JM, Staal J, McGuire C, Taghon T, Leclercq G, Beyaert R, van Loo G, Lambrecht BN, Elewaut D. NKT sublineage specification and survival requires the ubiquitin-modifying enzyme TNFAIP3/A20. J Exp Med 2016; 213:1973-81. [PMID: 27551157 PMCID: PMC5030796 DOI: 10.1084/jem.20151065] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 07/07/2016] [Indexed: 11/04/2022] Open
Abstract
Natural killer T (NKT) cells are innate lymphocytes that differentiate into NKT1, NKT2, and NKT17 sublineages during development. However, the signaling events that control NKT sublineage specification and differentiation remain poorly understood. Here, we demonstrate that the ubiquitin-modifying enzyme TNFAIP3/A20, an upstream regulator of T cell receptor (TCR) signaling in T cells, is an essential cell-intrinsic regulator of NKT differentiation. A20 is differentially expressed during NKT cell development, regulates NKT cell maturation, and specifically controls the differentiation and survival of NKT1 and NKT2, but not NKT17, sublineages. Remaining A20-deficient NKT1 and NKT2 thymocytes are hyperactivated in vivo and secrete elevated levels of Th1 and Th2 cytokines after TCR ligation in vitro. Defective NKT development was restored by compound deficiency of MALT1, a key downstream component of TCR signaling in T cells. These findings therefore show that negative regulation of TCR signaling during NKT development controls the differentiation and survival of NKT1 and NKT2 cells.
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Affiliation(s)
- Michael B Drennan
- Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center, 9052 Ghent, Belgium Department of Rheumatology, Ghent University, Ghent University Hospital, 9000 Ghent, Belgium
| | - Srinath Govindarajan
- Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center, 9052 Ghent, Belgium Department of Rheumatology, Ghent University, Ghent University Hospital, 9000 Ghent, Belgium
| | - Eveline Verheugen
- Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center, 9052 Ghent, Belgium Department of Rheumatology, Ghent University, Ghent University Hospital, 9000 Ghent, Belgium
| | - Jonathan M Coquet
- Unit Immunoregulation and Mucosal Immunology, VIB Inflammation Research Center, 9052 Ghent, Belgium Department of Respiratory Medicine, Ghent University, 9000 Ghent, Belgium
| | - Jens Staal
- Unit of Molecular Signal Transduction in Inflammation, VIB Inflammation Research Center, 9052 Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Conor McGuire
- Unit of Molecular Signal Transduction in Inflammation, VIB Inflammation Research Center, 9052 Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Tom Taghon
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, 9000 Ghent, Belgium
| | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, 9000 Ghent, Belgium
| | - Rudi Beyaert
- Unit of Molecular Signal Transduction in Inflammation, VIB Inflammation Research Center, 9052 Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Geert van Loo
- Unit of Molecular Signal Transduction in Inflammation, VIB Inflammation Research Center, 9052 Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Bart N Lambrecht
- Unit Immunoregulation and Mucosal Immunology, VIB Inflammation Research Center, 9052 Ghent, Belgium Department of Respiratory Medicine, Ghent University, 9000 Ghent, Belgium Department of Pulmonary Medicine, Erasmus MC, 3015 CE Rotterdam, Netherlands
| | - Dirk Elewaut
- Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center, 9052 Ghent, Belgium Department of Rheumatology, Ghent University, Ghent University Hospital, 9000 Ghent, Belgium
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37
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Filtjens J, Keirsse J, Van Ammel E, Taveirne S, Van Acker A, Kerre T, Taghon T, Vandekerckhove B, Plum J, Van Ginderachter JA, Leclercq G. Expression of the inhibitory Ly49E receptor is not critically involved in the immune response against cutaneous, pulmonary or liver tumours. Sci Rep 2016; 6:30564. [PMID: 27469529 PMCID: PMC4965774 DOI: 10.1038/srep30564] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 07/06/2016] [Indexed: 02/08/2023] Open
Abstract
Natural killer (NK) lymphocytes are part of the innate immune system and are important in immune protection against tumourigenesis. NK cells display a broad repertoire of activating and inhibitory cell surface receptors that regulate NK cell activity. The Ly49 family of NK receptors is composed of several members that recognize major histocompatibility complex class I (MHC-I) or MHC-I-related molecules. Ly49E is a unique inhibitory member, being triggered by the non-MHC-I-related protein urokinase plasminogen activator (uPA) in contrast to the known MHC-I-triggering of the other inhibitory Ly49 receptors. Ly49E also has an uncommon expression pattern on NK cells, including high expression on liver DX5− NK cells. Furthermore, Ly49E is the only Ly49 member expressed by epidermal γδ T cells. As γδ T cells and/or NK cells have been shown to be involved in the regulation of cutaneous, pulmonary and liver malignancies, and as uPA is involved in tumourigenesis, we investigated the role of the inhibitory Ly49E receptor in the anti-tumour immune response. We demonstrate that, although Ly49E is highly expressed on epidermal γδ T cells and liver NK cells, this receptor does not play a major role in the control of skin tumour formation or in lung and liver tumour development.
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Affiliation(s)
- Jessica Filtjens
- Laboratory of Experimental Immunology, Ghent University, Ghent, Belgium
| | - Jiri Keirsse
- Myeloid Cell Immunology Lab, VIB Inflammation Research Center, Ghent, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Els Van Ammel
- Laboratory of Experimental Immunology, Ghent University, Ghent, Belgium
| | - Sylvie Taveirne
- Laboratory of Experimental Immunology, Ghent University, Ghent, Belgium
| | - Aline Van Acker
- Laboratory of Experimental Immunology, Ghent University, Ghent, Belgium
| | - Tessa Kerre
- Laboratory of Experimental Immunology, Ghent University, Ghent, Belgium
| | - Tom Taghon
- Laboratory of Experimental Immunology, Ghent University, Ghent, Belgium
| | | | - Jean Plum
- Laboratory of Experimental Immunology, Ghent University, Ghent, Belgium
| | - Jo A Van Ginderachter
- Myeloid Cell Immunology Lab, VIB Inflammation Research Center, Ghent, Belgium.,Lab of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Georges Leclercq
- Laboratory of Experimental Immunology, Ghent University, Ghent, Belgium
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38
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Auwera PVD, Ypersele C, Vandepitte J, Melin J, Leclercq G. Book Reviews. Acta Clin Belg 2016. [DOI: 10.1080/17843286.1993.11718311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Xiang J, Zhang S, Leclercq G, Nauwynck H. Difference in replication of low-passage MCMV HaNa1 in BALB/c, C57BL/6 and NOD mice and role of different branches of immunity in susceptibility. Virus Res 2016; 221:38-46. [PMID: 27173788 DOI: 10.1016/j.virusres.2016.05.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 05/05/2016] [Accepted: 05/06/2016] [Indexed: 01/07/2023]
Abstract
Currently, murine cytomegalovirus (MCMV) infections have been studied extensively in inbred mice via intraperitoneal route with highly passaged strains. However, the question how a low-passage MCMV replicates in inbred mice via a natural route remained unanswered. Here, different inbred mice (BALB/c, C57BL/6 and NOD) were inoculated oronasally with a low-passage MCMV strain, HaNa1. Viral replication was evaluated by virus titration and quantitative real-time PCR, and antibody response was assessed by immunoperoxidase cell monolayer assay (IPMA). In BALB/c mice, virus persisted in nasal mucosa (from 3 dpi) and submandibular glands (from 7 dpi) until the end of experiment (49 dpi). In C57BL/6 mice, infectious virus was only detected in nasal mucosa from 3 dpi until 21 dpi; viral genome was still detectable in nasal mucosa until 49 dpi. Although infectious virus was not detected in submandibular glands of C57BL/6 mice, viral genome was detected from 7 dpi until 49 dpi. NOD mice appeared to be even more resistant with absence of any productive infection; viral genome was detected at low levels in nasal mucosa. We demonstrated that there was a strong correlation between on the one hand degree of productive replication and on the other hand the time of first appearance and titer of MCMV-specific IgG antibody. The deficiency of functional T and B cells and interleukin-2 (IL-2) common-γ chain (γc) did not increase the susceptibility to MCMV by the use of NOD.SCID and NSG mice. In addition, using monocytic cells from different inbred mice we found patterns of resistance similar to those seen in vivo, as assessed by viral antigen expression. Taken together, these results demonstrated that upon oronasal inoculation low-passage MCMV HaNa1 replication clearly differs between different inbred mice (BALB/c>C57BL/6>NOD); resistance in vivo to MCMV is partly due to less susceptibility of host target cells and is independent of T, B cells and γc signaling cytokine-dependent NK cell activities.
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Affiliation(s)
- Jun Xiang
- Laboratory of Virology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Shunchuan Zhang
- Laboratory of Virology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
| | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Gent, Belgium
| | - Hans Nauwynck
- Laboratory of Virology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
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Alari-Pahissa E, Grandclément C, Jeevan-Raj B, Leclercq G, Veillette A, Held W. Activation by SLAM Family Receptors Contributes to NK Cell Mediated "Missing-Self" Recognition. PLoS One 2016; 11:e0153236. [PMID: 27054584 PMCID: PMC4824421 DOI: 10.1371/journal.pone.0153236] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 03/27/2016] [Indexed: 11/18/2022] Open
Abstract
Natural Killer (NK) cells attack normal hematopoietic cells that do not express inhibitory MHC class I (MHC-I) molecules, but the ligands that activate NK cells remain incompletely defined. Here we show that the expression of the Signaling Lymphocyte Activation Molecule (SLAM) family members CD48 and Ly9 (CD229) by MHC-I-deficient tumor cells significantly contributes to NK cell activation. When NK cells develop in the presence of T cells or B cells that lack inhibitory MHC-I but express activating CD48 and Ly9 ligands, the NK cells’ ability to respond to MHC-I-deficient tumor cells is severely compromised. In this situation, NK cells express normal levels of the corresponding activation receptors 2B4 (CD244) and Ly9 but these receptors are non-functional. This provides a partial explanation for the tolerance of NK cells to MHC-I-deficient cells in vivo. Activating signaling via 2B4 is restored when MHC-I-deficient T cells are removed, indicating that interactions with MHC-I-deficient T cells dominantly, but not permanently, impair the function of the 2B4 NK cell activation receptor. These data identify an important role of SLAM family receptors for NK cell mediated “missing-self” reactivity and suggest that NK cell tolerance in MHC-I mosaic mice is in part explained by an acquired dysfunction of SLAM family receptors.
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MESH Headings
- Animals
- Antigens, CD/immunology
- Antigens, CD/metabolism
- Flow Cytometry
- Histocompatibility Antigens Class I/immunology
- Histocompatibility Antigens Class I/metabolism
- Killer Cells, Natural/immunology
- Melanoma, Experimental/immunology
- Melanoma, Experimental/pathology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Receptors, Cell Surface/immunology
- Receptors, Cell Surface/metabolism
- Receptors, Immunologic/metabolism
- Self Tolerance/immunology
- Signaling Lymphocytic Activation Molecule Family
- Signaling Lymphocytic Activation Molecule Family Member 1
- Tumor Cells, Cultured
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Affiliation(s)
- Elisenda Alari-Pahissa
- Ludwig Center for Cancer Research, Department of Oncology, University of Lausanne, Epalinges, Switzerland
| | - Camille Grandclément
- Ludwig Center for Cancer Research, Department of Oncology, University of Lausanne, Epalinges, Switzerland
| | - Beena Jeevan-Raj
- Ludwig Center for Cancer Research, Department of Oncology, University of Lausanne, Epalinges, Switzerland
| | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, University of Ghent, Ghent, Belgium
| | - André Veillette
- Department of Medicine, McGill University, Montréal, Québec, Canada
| | - Werner Held
- Ludwig Center for Cancer Research, Department of Oncology, University of Lausanne, Epalinges, Switzerland
- * E-mail:
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41
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Avau A, Imbrechts M, Put K, Brisse E, Mitera T, Leclercq G, Wouters CH, Matthys P. ID: 195. Cytokine 2015. [DOI: 10.1016/j.cyto.2015.08.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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42
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Babu D, Leclercq G, Goossens V, Remijsen Q, Vandenabeele P, Motterlini R, Lefebvre RA. Antioxidant potential of CORM-A1 and resveratrol during TNF-α/cycloheximide-induced oxidative stress and apoptosis in murine intestinal epithelial MODE-K cells. Toxicol Appl Pharmacol 2015; 288:161-78. [PMID: 26187750 DOI: 10.1016/j.taap.2015.07.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 07/03/2015] [Accepted: 07/07/2015] [Indexed: 12/26/2022]
Abstract
Targeting excessive production of reactive oxygen species (ROS) could be an effective therapeutic strategy to prevent oxidative stress-associated gastrointestinal inflammation. NADPH oxidase (NOX) and mitochondrial complexes (I and II) are the major sources of ROS production contributing to TNF-α/cycloheximide (CHX)-induced apoptosis in the mouse intestinal epithelial cell line, MODE-K. In the current study, the influence of a polyphenolic compound (resveratrol) and a water-soluble carbon monoxide (CO)-releasing molecule (CORM-A1) on the different sources of TNF-α/CHX-induced ROS production in MODE-K cells was assessed. This was compared with H2O2-, rotenone- or antimycin-A-induced ROS-generating systems. Intracellular total ROS, mitochondrial-derived ROS and mitochondrial superoxide anion (O2(-)) production levels were assessed. Additionally, the influence on TNF-α/CHX-induced changes in mitochondrial membrane potential (Ψm) and mitochondrial function was studied. In basal conditions, CORM-A1 did not affect intracellular total or mitochondrial ROS levels, while resveratrol increased intracellular total ROS but reduced mitochondrial ROS production. TNF-α/CHX- and H2O2-mediated increase in intracellular total ROS production was reduced by both resveratrol and CORM-A1, whereas only resveratrol attenuated the increase in mitochondrial ROS triggered by TNF-α/CHX. CORM-A1 decreased antimycin-A-induced mitochondrial O2(-) production without any influence on TNF-α/CHX- and rotenone-induced mitochondrial O2(-) levels, while resveratrol abolished all three effects. Finally, resveratrol greatly reduced and abolished TNF-α/CHX-induced mitochondrial depolarization and mitochondrial dysfunction, while CORM-A1 only mildly affected these parameters. These data indicate that the cytoprotective effect of resveratrol is predominantly due to mitigation of mitochondrial ROS, while CORM-A1 acts solely on NOX-derived ROS to protect MODE-K cells from TNF-α/CHX-induced cell death. This might explain the more pronounced cytoprotective effect of resveratrol.
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Affiliation(s)
- Dinesh Babu
- Heymans Institute of Pharmacology, Faculty of Medicine and Health Sciences, Ghent University, Belgium.
| | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Belgium
| | - Vera Goossens
- Inflammation Research Center, Molecular Signaling and Cell Death Unit, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Molecular Signaling and Cell Death Unit, Ghent University, Ghent, Belgium
| | - Quinten Remijsen
- Inflammation Research Center, Molecular Signaling and Cell Death Unit, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Molecular Signaling and Cell Death Unit, Ghent University, Ghent, Belgium
| | - Peter Vandenabeele
- Inflammation Research Center, Molecular Signaling and Cell Death Unit, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Molecular Signaling and Cell Death Unit, Ghent University, Ghent, Belgium
| | - Roberto Motterlini
- Inserm U955, Equipe 12 and University Paris-Est Créteil, Faculty of Medicine, F-94000 Créteil, France
| | - Romain A Lefebvre
- Heymans Institute of Pharmacology, Faculty of Medicine and Health Sciences, Ghent University, Belgium
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Babu D, Leclercq G, Goossens V, Vanden Berghe T, Van Hamme E, Vandenabeele P, Lefebvre RA. Mitochondria and NADPH oxidases are the major sources of TNF-α/cycloheximide-induced oxidative stress in murine intestinal epithelial MODE-K cells. Cell Signal 2015; 27:1141-58. [DOI: 10.1016/j.cellsig.2015.02.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 02/22/2015] [Indexed: 01/26/2023]
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44
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Zorman D, Leclercq G, Cabanas JJ, Jennart H. [Interest of non invasive navigation in total knee arthroplasty]. Rev Med Brux 2015; 36:158-160. [PMID: 26372977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
During surgery of total knee arthroplasty, we use a computerized non invasive navigation (Brainlab Victor Vision CT-free) to assess the accuracy of the bone cuts (navigation expresse). The purpose of this study is to evaluate non invasive navigation when a total knee arthroplasty is achieved by conventional instrumentation. The study is based on forty total knee arthroplasties. The accuracy of the tibial and distal femoral bone cuts, checked by non invasive navigation, is evaluated prospectively. In our clinical series, we have obtained, with the conventional instrumentation, a correction of the mechanical axis only in 90 % of cases (N = 36). With non invasive navigation, we improved the positioning of implants and obtained in all cases the desired axiometry in the frontal plane. Although operative time is increased by about 15 minutes, the non invasive navigation does not induce intraoperative or immediate postoperative complications. Despite the cost of this technology, we believe that the reliability of the procedure is enhanced by a simple and reproducible technique.
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MESH Headings
- Aged
- Aged, 80 and over
- Arthroplasty, Replacement, Knee/economics
- Arthroplasty, Replacement, Knee/instrumentation
- Arthroplasty, Replacement, Knee/methods
- Arthroplasty, Replacement, Knee/statistics & numerical data
- Female
- Humans
- Male
- Middle Aged
- Postoperative Complications/epidemiology
- Reproducibility of Results
- Surgery, Computer-Assisted/economics
- Surgery, Computer-Assisted/instrumentation
- Surgery, Computer-Assisted/methods
- Surgery, Computer-Assisted/statistics & numerical data
- Treatment Outcome
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Heuson JC, Leclercq G, Mattheiem WH. Present indication for endocrine therapy and chemotherapy in advanced breast cancer. Antibiot Chemother (1971) 2015; 24:189-204. [PMID: 350136 DOI: 10.1159/000401514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Vanhee S, De Mulder K, Van Caeneghem Y, Verstichel G, Van Roy N, Menten B, Velghe I, Philippé J, De Bleser D, Lambrecht BN, Taghon T, Leclercq G, Kerre T, Vandekerckhove B. In vitro human embryonic stem cell hematopoiesis mimics MYB-independent yolk sac hematopoiesis. Haematologica 2014; 100:157-66. [PMID: 25381126 DOI: 10.3324/haematol.2014.112144] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Although hematopoietic precursor activity can be generated in vitro from human embryonic stem cells, there is no solid evidence for the appearance of multipotent, self-renewing and transplantable hematopoietic stem cells. This could be due to short half-life of hematopoietic stem cells in culture or, alternatively, human embryonic stem cell-initiated hematopoiesis may be hematopoietic stem cell-independent, similar to yolk sac hematopoiesis, generating multipotent progenitors with limited expansion capacity. Since a MYB was reported to be an excellent marker for hematopoietic stem cell-dependent hematopoiesis, we generated a MYB-eGFP reporter human embryonic stem cell line to study formation of hematopoietic progenitor cells in vitro. We found CD34(+) hemogenic endothelial cells rounding up and developing into CD43(+) hematopoietic cells without expression of MYB-eGFP. MYB-eGFP(+) cells appeared relatively late in embryoid body cultures as CD34(+)CD43(+)CD45(-/lo) cells. These MYB-eGFP(+) cells were CD33 positive, proliferated in IL-3 containing media and hematopoietic differentiation was restricted to the granulocytic lineage. In agreement with data obtained on murine Myb(-/-) embryonic stem cells, bright eGFP expression was observed in a subpopulation of cells, during directed myeloid differentiation, which again belonged to the granulocytic lineage. In contrast, CD14(+) macrophage cells were consistently eGFP(-) and were derived from eGFP-precursors only. In summary, no evidence was obtained for in vitro generation of MYB(+) hematopoietic stem cells during embryoid body cultures. The observed MYB expression appeared late in culture and was confined to the granulocytic lineage.
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Affiliation(s)
- Stijn Vanhee
- Laboratory for Experimental Immunology, Ghent University, Belgium
| | | | | | - Greet Verstichel
- Laboratory for Experimental Immunology, Ghent University, Belgium
| | | | - Björn Menten
- Center for Medical Genetics, Ghent University, Belgium
| | - Imke Velghe
- Laboratory for Experimental Immunology, Ghent University, Belgium
| | - Jan Philippé
- Department of Clinical Biology, Microbiology and Immunology, Ghent University Hospital, Belgium
| | | | - Bart N Lambrecht
- Laboratory of Immunoregulation and Mucosal Immunology, Department of Pulmonary Medicine, Ghent University Hospital, Belgium Flanders Institute for Biotechnology (VIB) Inflammation Research Center, Ghent University, Belgium
| | - Tom Taghon
- Laboratory for Experimental Immunology, Ghent University, Belgium
| | - Georges Leclercq
- Laboratory for Experimental Immunology, Ghent University, Belgium
| | - Tessa Kerre
- Laboratory for Experimental Immunology, Ghent University, Belgium
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Waegemans E, Van de Walle I, De Medts J, De Smedt M, Kerre T, Vandekerckhove B, Leclercq G, Wang T, Plum J, Taghon T. Notch3 activation is sufficient but not required for inducing human T-lineage specification. J Immunol 2014; 193:5997-6004. [PMID: 25381438 DOI: 10.4049/jimmunol.1400764] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Although the role for the individual Notch receptors in early hematopoiesis have been thoroughly investigated in mouse, studies in human have been mostly limited to the use of pan-Notch inhibitors. However, such studies in human are important to predict potential side effects of specific Notch receptor blocking reagents because these are currently being considered as therapeutic tools to treat various Notch-dependent diseases. In this study, we studied the individual roles of Notch1 and Notch3 in early human hematopoietic lineage decisions, particularly during T-lineage specification. Although this process in mice is solely dependent on Notch1 activation, we recently reported Notch3 expression in human uncommitted thymocytes, raising the possibility that Notch3 mediates human T-lineage specification. Although expression of a constitutive activated form of Notch3 (ICN3) results in the induction of T-lineage specification in human CD34(+) hematopoietic progenitor cells, similar to ICN1 overexpression, loss-of-function studies using blocking Abs reveal that only Notch1, but not Notch3, is critical in this process. Blocking of Notch1 activation in OP9-DLL4 cocultures resulted in a complete block in T-lineage specification and induced monocytic and plasmacytoid dendritic cell differentiation instead. In fetal thymus organ cultures, impeded Notch1 activation resulted in B and dendritic cell development. In contrast, Notch3 blocking Abs only marginally affected T-lineage specification and hematopoietic differentiation with a slight increase in monocyte development. No induction of B or dendritic cell development was observed. Thus, our results unambiguously reveal a nonredundant role for Notch1 in human T-lineage specification, despite the expression of other Notch receptors.
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Affiliation(s)
- Els Waegemans
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, B-9000 Ghent, Belgium; and
| | - Inge Van de Walle
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, B-9000 Ghent, Belgium; and
| | - Jelle De Medts
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, B-9000 Ghent, Belgium; and
| | - Magda De Smedt
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, B-9000 Ghent, Belgium; and
| | - Tessa Kerre
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, B-9000 Ghent, Belgium; and
| | - Bart Vandekerckhove
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, B-9000 Ghent, Belgium; and
| | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, B-9000 Ghent, Belgium; and
| | - Tao Wang
- Medical Genetics Research Group and Centre for Molecular Medicine, School of Clinical and Laboratory Sciences, Faculty of Medicine and Human Sciences, University of Manchester, Manchester M13 9PT, United Kingdom
| | - Jean Plum
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, B-9000 Ghent, Belgium; and
| | - Tom Taghon
- Department of Clinical Chemistry, Microbiology and Immunology, Faculty of Medicine and Health Sciences, Ghent University, Ghent University Hospital, B-9000 Ghent, Belgium; and
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Van Acker A, Filtjens J, Van Welden S, Taveirne S, Van Ammel E, Vanhees M, Devisscher L, Kerre T, Taghon T, Vandekerckhove B, Plum J, Leclercq G. Ly49E expression on CD8αα-expressing intestinal intraepithelial lymphocytes plays no detectable role in the development and progression of experimentally induced inflammatory bowel diseases. PLoS One 2014; 9:e110015. [PMID: 25310588 PMCID: PMC4195694 DOI: 10.1371/journal.pone.0110015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 09/06/2014] [Indexed: 12/14/2022] Open
Abstract
The Ly49E NK receptor is a unique inhibitory receptor, presenting with a high degree of conservation among mouse strains and expression on both NK cells and intraepithelial-localised T cells. Amongst intraepithelial-localised T cells, the Ly49E receptor is abundantly expressed on CD8αα-expressing innate-like intestinal intraepithelial lymphocytes (iIELs), which contribute to front-line defense at the mucosal barrier. Inflammatory bowel diseases (IBDs), encompassing Crohn's disease and ulcerative colitis, have previously been suggested to have an autoreactive origin and to evolve from a dysbalance between regulatory and effector functions in the intestinal immune system. Here, we made use of Ly49E-deficient mice to characterize the role of Ly49E receptor expression on CD8αα-expressing iIELs in the development and progression of IBD. For this purpose we used the dextran sodium sulphate (DSS)- and trinitrobenzenesulfonic-acid (TNBS)-induced colitis models, and the TNFΔARE ileitis model. We show that Ly49E is expressed on a high proportion of CD8αα-positive iIELs, with higher expression in the colon as compared to the small intestine. However, Ly49E expression on small intestinal and colonic iIELs does not influence the development or progression of inflammatory bowel diseases.
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Affiliation(s)
- Aline Van Acker
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Jessica Filtjens
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | | | - Sylvie Taveirne
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Els Van Ammel
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Mandy Vanhees
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | | | - Tessa Kerre
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Tom Taghon
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Bart Vandekerckhove
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Jean Plum
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
| | - Georges Leclercq
- Department of Clinical Chemistry, Microbiology and Immunology, Ghent University, Ghent, Belgium
- * E-mail:
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49
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Avau A, Mitera T, Put S, Put K, Brisse E, Filtjens J, Uyttenhove C, Van Snick J, Liston A, Leclercq G, Billiau AD, Wouters CH, Matthys P. Systemic juvenile idiopathic arthritis-like syndrome in mice following stimulation of the immune system with Freund's complete adjuvant: regulation by interferon-γ. Arthritis Rheumatol 2014; 66:1340-51. [PMID: 24470407 DOI: 10.1002/art.38359] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 01/09/2014] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Systemic juvenile idiopathic arthritis (JIA) is unique among the rheumatic diseases of childhood, given its distinctive systemic inflammatory character. Inappropriate control of innate immune responses following an initially harmless trigger is thought to account for the excessive inflammatory reaction. The aim of this study was to generate a similar systemic inflammatory syndrome in mice by injecting a relatively innocuous, yet persistent, immune system trigger: Freund's complete adjuvant (CFA), containing heat-killed mycobacteria. METHODS Given the central role of interferon-γ (IFNγ) in immune regulation, we challenged wild-type (WT) and IFNγ-knockout (KO) BALB/c mice with CFA, and analyzed their clinical symptoms and biologic characteristics. The production of cytokines and the effects of anticytokine antibodies were investigated. RESULTS In WT mice, CFA injection resulted in splenomegaly, lymphadenopathy, neutrophilia, thrombocytosis, and increased cytokine expression. In the absence of IFNγ, these symptoms were more pronounced and were accompanied by weight loss, arthritis, anemia, hemophagocytosis, abundance of immature blood cells, and increased levels of interleukin-6 (IL-6), all of which are reminiscent of the symptoms of systemic JIA. CFA-challenged IFNγ-KO mice showed increased expression of IL-17 by CD4+ T cells and by innate γ/δ T cells. Inflammatory and hematologic changes were prevented by treatment with anti-IL-12/IL-23p40 and anti-IL-17 antibodies. CONCLUSION Immune stimulation of IFNγ-KO mice with CFA produces a systemic inflammatory syndrome reflecting the clinical, biologic, and histopathologic picture of systemic JIA. The protective function of IFNγ in preventing anemia and overall systemic inflammation is a striking observation. The finding that both adaptive and innate T cells are important sources of IL-17 may be of relevance in the pathogenesis of systemic JIA.
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50
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De Smet R, Verschuere S, Allais L, Leclercq G, Dierendonck M, De Geest BG, Van Driessche I, Demoor T, Cuvelier CA. Spray-Dried Polyelectrolyte Microparticles in Oral Antigen Delivery: Stability, Biocompatibility, and Cellular Uptake. Biomacromolecules 2014; 15:2301-9. [DOI: 10.1021/bm5005367] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rebecca De Smet
- Department
of Pathology, Ghent University, 5 Blok A, De Pintelaan 185, 9000 Ghent, Belgium
| | - Stephanie Verschuere
- Department
of Pathology, Ghent University, 5 Blok A, De Pintelaan 185, 9000 Ghent, Belgium
| | - Liesbeth Allais
- Department
of Pathology, Ghent University, 5 Blok A, De Pintelaan 185, 9000 Ghent, Belgium
| | - Georges Leclercq
- Department
of Clinical Chemistry, Microbiology and Immunology, Ghent University, 4
blok A, De Pintelaan 185, 9000 Ghent, Belgium
| | - Marijke Dierendonck
- Laboratory
of Pharmaceutical Technology, Department of Pharmaceutics, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
| | - Bruno G. De Geest
- Laboratory
of Pharmaceutical Technology, Department of Pharmaceutics, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
| | - Isabel Van Driessche
- Department
of Inorganic and Physical Chemistry, Ghent University, Krijgslaan
281, S3, 9000 Ghent, Belgium
| | - Tine Demoor
- Department
of Pathology, Ghent University, 5 Blok A, De Pintelaan 185, 9000 Ghent, Belgium
| | - Claude A. Cuvelier
- Department
of Pathology, Ghent University, 5 Blok A, De Pintelaan 185, 9000 Ghent, Belgium
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