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Englebert K, Taquin A, Azouz A, Acolty V, Vande Velde S, Vanhollebeke M, Innes H, Boon L, Keler T, Leo O, Goriely S, Moser M, Oldenhove G. The CD27/CD70 pathway negatively regulates visceral adipose tissue-resident Th2 cells and controls metabolic homeostasis. Cell Rep 2024; 43:113824. [PMID: 38386557 DOI: 10.1016/j.celrep.2024.113824] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 12/11/2023] [Accepted: 02/05/2024] [Indexed: 02/24/2024] Open
Abstract
Adipose tissue homeostasis relies on the interplay between several regulatory lineages, such as type 2 innate lymphoid cells (ILC2s), T helper 2 (Th2) cells, regulatory T cells, eosinophils, and type 2 macrophages. Among them, ILC2s are numerically the dominant source of type 2 cytokines and are considered as major regulators of adiposity. Despite the overlap in immune effector molecules and sensitivity to alarmins (thymic stromal lymphopoietin and interleukin-33) between ILC2s and resident memory Th2 lymphocytes, the role of the adaptive axis of type 2 immunity remains unclear. We show that mice deficient in CD27, a member of the tumor necrosis factor receptor superfamily, are more resistant to obesity and associated disorders. A comparative analysis of the CD4 compartment of both strains revealed higher numbers of fat-resident memory Th2 cells in the adipose tissue of CD27 knockout mice, which correlated with decreased programmed cell death protein 1-induced apoptosis. Our data point to a non-redundant role for Th2 lymphocytes in obesogenic conditions.
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Affiliation(s)
- Kevin Englebert
- ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels, Belgium; Immunobiology Lab, ULB, Gosselies, Belgium
| | - Anaelle Taquin
- ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels, Belgium; Immunobiology Lab, ULB, Gosselies, Belgium
| | - Abdulkader Azouz
- ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels, Belgium; Institute for Medical Immunology (IMI), ULB, Gosselies, Belgium
| | - Valérie Acolty
- ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels, Belgium; Immunobiology Lab, ULB, Gosselies, Belgium
| | - Sylvie Vande Velde
- Interuniversity Institute of Bioinformatics in Brussels (ULB-VUB), Brussels, Belgium; Machine Learning Group, ULB, Brussels, Belgium
| | - Marie Vanhollebeke
- ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels, Belgium; Immunobiology Lab, ULB, Gosselies, Belgium
| | - Hadrien Innes
- ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels, Belgium; Immunobiology Lab, ULB, Gosselies, Belgium
| | | | | | - Oberdan Leo
- ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels, Belgium; Immunobiology Lab, ULB, Gosselies, Belgium
| | - Stanislas Goriely
- ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels, Belgium; Immunobiology Lab, ULB, Gosselies, Belgium; Institute for Medical Immunology (IMI), ULB, Gosselies, Belgium
| | - Muriel Moser
- ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels, Belgium; Immunobiology Lab, ULB, Gosselies, Belgium
| | - Guillaume Oldenhove
- ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels, Belgium; Immunobiology Lab, ULB, Gosselies, Belgium.
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Pinioti S, Sharma H, Flerin NC, Yu Q, Tzoumpa A, Cafarello ST, De Bousser E, Callewaert N, Oldenhove G, Schlenner S, Thienpont B, Garg AD, Di Matteo M, Mazzone M. A Metabolic Gene Survey Pinpoints Fucosylation as a Key Pathway Underlying the Suppressive Function of Regulatory T Cells in Cancer. Cancer Immunol Res 2023; 11:1611-1629. [PMID: 37933083 PMCID: PMC7615342 DOI: 10.1158/2326-6066.cir-22-0606] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 07/26/2022] [Revised: 02/22/2023] [Accepted: 10/18/2023] [Indexed: 11/08/2023]
Abstract
Forkhead box P3 (Foxp3)-expressing regulatory T cells (Treg) are the guardians of controlled immune reactions and prevent the development of autoimmune diseases. However, in the tumor context, their increased number suppresses antitumor immune responses, indicating the importance of understanding the mechanisms behind their function and stability. Metabolic reprogramming can affect Foxp3 regulation and, therefore, Treg suppressive function and fitness. Here, we performed a metabolic CRISPR/Cas9 screen and pinpointed novel candidate positive and negative metabolic regulators of Foxp3. Among the positive regulators, we revealed that targeting the GDP-fucose transporter Slc35c1, and more broadly fucosylation (Fuco), in Tregs compromises their proliferation and suppressive function both in vitro and in vivo, leading to alteration of the tumor microenvironment and impaired tumor progression and protumoral immune responses. Pharmacologic inhibition of Fuco dampened tumor immunosuppression mostly by targeting Tregs, thus resulting in reduced tumor growth. In order to substantiate these findings in humans, tumoral Tregs from patients with colorectal cancer were clustered on the basis of the expression of Fuco-related genes. FucoLOW Tregs were found to exhibit a more immunogenic profile compared with FucoHIGH Tregs. Furthermore, an enrichment of a FucoLOW signature, mainly derived from Tregs, correlated with better prognosis and response to immune checkpoint blockade in melanoma patients. In conclusion, Slc35c1-dependent Fuco is able to regulate the suppressive function of Tregs, and measuring its expression in Tregs might pave the way towards a useful biomarker model for patients with cancer. See related Spotlight by Silveria and DuPage, p. 1570.
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Affiliation(s)
- Sotiria Pinioti
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven B3000, Belgium
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven B3000, Belgium
| | - Himal Sharma
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven B3000, Belgium
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven B3000, Belgium
| | - Nina C Flerin
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven B3000, Belgium
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven B3000, Belgium
| | - Qian Yu
- laboratory for Functional Epigenetics, Department of Human Genetics, KU Leuven, Leuven B3000, Belgium
| | - Amalia Tzoumpa
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven B3000, Belgium
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven B3000, Belgium
| | - Sarah Trusso Cafarello
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven B3000, Belgium
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven B3000, Belgium
| | - Elien De Bousser
- Medical Biotechnology Center, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Nico Callewaert
- Medical Biotechnology Center, VIB, Ghent, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Guillaume Oldenhove
- laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium
- U-CRI (UCL Center for Research in Immunobiology), Université Libre de Bruxelles, Gosselies, Belgium
| | - Susan Schlenner
- KU Leuven-University of Leuven, Department of Microbiology, Immunology and Transplantation, Leuven B3000, Belgium
| | - Bernard Thienpont
- laboratory for Functional Epigenetics, Department of Human Genetics, KU Leuven, Leuven B3000, Belgium
| | - Abhishek D Garg
- laboratory for Cell Stress & Immunity (CSI), Department for Cellular and Molecular Medicine, KU Leuven, Leuven B3000, Belgium
| | - Mario Di Matteo
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven B3000, Belgium
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven B3000, Belgium
| | - Massimiliano Mazzone
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven B3000, Belgium
- laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven B3000, Belgium
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3
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Bowakim-Anta N, Acolty V, Azouz A, Yagita H, Leo O, Goriely S, Oldenhove G, Moser M. Chronic CD27-CD70 costimulation promotes type 1-specific polarization of effector Tregs. Front Immunol 2023; 14:1023064. [PMID: 36993956 PMCID: PMC10041113 DOI: 10.3389/fimmu.2023.1023064] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 02/24/2023] [Indexed: 03/16/2023] Open
Abstract
IntroductionMost T lymphocytes, including regulatory T cells, express the CD27 costimulatory receptor in steady state conditions. There is evidence that CD27 engagement on conventional T lymphocytes favors the development of Th1 and cytotoxic responses in mice and humans, but the impact on the regulatory lineage is unknown.MethodsIn this report, we examined the effect of constitutive CD27 engagement on both regulatory and conventional CD4+ T cells in vivo, in the absence of intentional antigenic stimulation.ResultsOur data show that both T cell subsets polarize into type 1 Tconvs or Tregs, characterized by cell activation, cytokine production, response to IFN-γ and CXCR3-dependent migration to inflammatory sites. Transfer experiments suggest that CD27 engagement triggers Treg activation in a cell autonomous fashion.ConclusionWe conclude that CD27 may regulate the development of Th1 immunity in peripheral tissues as well as the subsequent switch of the effector response into long-term memory.
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Affiliation(s)
- Natalia Bowakim-Anta
- Laboratory of Immunobiology, Université Libre de Bruxelles (ULB), Gosselies, Belgium
| | - Valérie Acolty
- Laboratory of Immunobiology, Université Libre de Bruxelles (ULB), Gosselies, Belgium
| | - Abdulkader Azouz
- Institute for Medical Immunology, Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Gosselies, Belgium
| | - Hideo Yagita
- Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan
| | - Oberdan Leo
- Laboratory of Immunobiology, Université Libre de Bruxelles (ULB), Gosselies, Belgium
| | - Stanislas Goriely
- Laboratory of Immunobiology, Université Libre de Bruxelles (ULB), Gosselies, Belgium
- Institute for Medical Immunology, Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Gosselies, Belgium
| | - Guillaume Oldenhove
- Laboratory of Immunobiology, Université Libre de Bruxelles (ULB), Gosselies, Belgium
| | - Muriel Moser
- Laboratory of Immunobiology, Université Libre de Bruxelles (ULB), Gosselies, Belgium
- *Correspondence: Muriel Moser,
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Bisilliat Donnet C, Acolty V, Azouz A, Taquin A, Henin C, Trusso Cafarello S, Denanglaire S, Mazzone M, Oldenhove G, Leo O, Goriely S, Moser M. PHD2 Constrains Antitumor CD8+ T-cell Activity. Cancer Immunol Res 2023; 11:339-350. [PMID: 36603132 DOI: 10.1158/2326-6066.cir-22-0099] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 10/17/2022] [Accepted: 01/03/2023] [Indexed: 01/07/2023]
Abstract
The prolyl hydroxylase domain/hypoxia-inducible factor (PHD/HIF) pathway has been implicated in a wide range of immune and inflammatory processes, including in the oxygen-deprived tumor microenvironment. To examine the effect of HIF stabilization in antitumor immunity, we deleted Phd2 selectively in T lymphocytes using the cre/lox system. We show that the deletion of PHD2 in lymphocytes resulted in enhanced regression of EG7-OVA tumors, in a HIF-1α-dependent manner. The enhanced control of neoplastic growth correlated with increased polyfunctionality of CD8+ tumor-infiltrating lymphocytes, as indicated by enhanced expression of IFNγ, TNFα, and granzyme B. Phenotypic and transcriptomic analyses pointed to a key role of glycolysis in sustaining CTL activity in the tumor bed and identified the PHD2/HIF-1 pathway as a potential target for cancer immunotherapy.
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Affiliation(s)
- Charlotte Bisilliat Donnet
- Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium.,U-CRI (ULB Center for Research in Immunology), Université Libre de Bruxelles, Gosselies, Belgium
| | - Valérie Acolty
- Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium.,U-CRI (ULB Center for Research in Immunology), Université Libre de Bruxelles, Gosselies, Belgium
| | - Abdulkader Azouz
- U-CRI (ULB Center for Research in Immunology), Université Libre de Bruxelles, Gosselies, Belgium.,Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Anaëlle Taquin
- Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium.,U-CRI (ULB Center for Research in Immunology), Université Libre de Bruxelles, Gosselies, Belgium
| | - Coralie Henin
- Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium.,U-CRI (ULB Center for Research in Immunology), Université Libre de Bruxelles, Gosselies, Belgium
| | - Sarah Trusso Cafarello
- Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium
| | - Sébastien Denanglaire
- Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium.,U-CRI (ULB Center for Research in Immunology), Université Libre de Bruxelles, Gosselies, Belgium
| | - Massimiliano Mazzone
- Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium.,Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Guillaume Oldenhove
- Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium.,U-CRI (ULB Center for Research in Immunology), Université Libre de Bruxelles, Gosselies, Belgium
| | - Oberdan Leo
- Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium.,U-CRI (ULB Center for Research in Immunology), Université Libre de Bruxelles, Gosselies, Belgium
| | - Stanislas Goriely
- Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium.,U-CRI (ULB Center for Research in Immunology), Université Libre de Bruxelles, Gosselies, Belgium.,Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Muriel Moser
- Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium.,U-CRI (ULB Center for Research in Immunology), Université Libre de Bruxelles, Gosselies, Belgium
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Hussein H, Denanglaire S, Van Gool F, Azouz A, Ajouaou Y, El-Khatib H, Oldenhove G, Leo O, Andris F. Multiple Environmental Signaling Pathways Control the Differentiation of RORγt-Expressing Regulatory T Cells. Front Immunol 2020; 10:3007. [PMID: 31998303 PMCID: PMC6961548 DOI: 10.3389/fimmu.2019.03007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 10/15/2019] [Accepted: 12/09/2019] [Indexed: 01/19/2023] Open
Abstract
RORγt-expressing Tregs form a specialized subset of intestinal CD4+ Foxp3+ cells which is essential to maintain gut homeostasis and tolerance to commensal microbiota. Recently, c-Maf emerged as a critical factor in the regulation of RORγt expression in Tregs. However, aside from c-Maf signaling, the signaling pathways involved in the differentiation of RORγt+ Tregs and their possible interplay with c-Maf in this process are largely unknown. We show that RORγt+ Treg development is controled by positive as well as negative signals. Along with c-Maf signaling, signals derived from a complex microbiota, as well as IL-6/STAT3- and TGF-β-derived signals act in favor of RORγt+ Treg development. Ectopic expression of c-Maf did not rescue RORγt expression in STAT3-deficient Tregs, indicating the presence of additional effectors downstream of STAT3. Moreover, we show that an inflammatory IFN-γ/STAT1 signaling pathway acts as a negative regulator of RORγt+ Treg differentiation in a c-Maf independent fashion. These data thus argue for a complex integrative signaling network that finely tunes RORγt expression in Tregs. The finding that type 1 inflammation impedes RORγt+ Treg development even in the presence of an active IL-6/STAT3 pathway further suggests a dominant negative effect of STAT1 over STAT3 in this process.
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Affiliation(s)
- Hind Hussein
- Laboratoire d'Immunobiologie, Université Libre de Bruxelles, Brussels, Belgium
| | | | - Frédéric Van Gool
- Diabetes Center, University of California, San Francisco, San Francisco, CA, United States
- Sean N. Parker Autoimmune Research Laboratory, University of California, San Francisco, San Francisco, CA, United States
| | - Abdulkader Azouz
- Institute for Medical Immunology (IMI), Université Libre de Bruxelles, Gosselies, Belgium
| | - Yousra Ajouaou
- Laboratoire d'Immunobiologie, Université Libre de Bruxelles, Brussels, Belgium
| | - Hana El-Khatib
- Laboratoire d'Immunobiologie, Université Libre de Bruxelles, Brussels, Belgium
| | - Guillaume Oldenhove
- Laboratoire d'Immunobiologie, Université Libre de Bruxelles, Brussels, Belgium
| | - Oberdan Leo
- Laboratoire d'Immunobiologie, Université Libre de Bruxelles, Brussels, Belgium
| | - Fabienne Andris
- Laboratoire d'Immunobiologie, Université Libre de Bruxelles, Brussels, Belgium
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Detavernier A, Azouz A, Shehade H, Splittgerber M, Van Maele L, Nguyen M, Thomas S, Achouri Y, Svec D, Calonne E, Fuks F, Oldenhove G, Goriely S. Monocytes undergo multi-step differentiation in mice during oral infection by Toxoplasma gondii. Commun Biol 2019; 2:472. [PMID: 31872076 PMCID: PMC6920430 DOI: 10.1038/s42003-019-0718-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 05/08/2019] [Accepted: 11/27/2019] [Indexed: 01/01/2023] Open
Abstract
Monocytes play a major role in the defense against pathogens. They are rapidly mobilized to inflamed sites where they exert both proinflammatory and regulatory effector functions. It is still poorly understood how this dynamic and exceptionally plastic system is controlled at the molecular level. Herein, we evaluated the differentiation process that occurs in Ly6Chi monocytes during oral infection by Toxoplasma gondii. Flow cytometry and single-cell analysis revealed distinct activation status and gene expression profiles in the bone marrow, the spleen and the lamina propria of infected mice. We provide further evidence that acquisition of effector functions, such as the capacity to produce interleukin-27, is accompanied by distinct waves of epigenetic programming, highlighting a role for STAT1/IRF1 in the bone marrow and AP-1/NF-κB in the periphery. This work broadens our understanding of the molecular events that occur in vivo during monocyte differentiation in response to inflammatory cues.
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Affiliation(s)
- Aurélie Detavernier
- Université Libre de Bruxelles, Institute for Medical Immunology and ULB Center for Research in Immunology (U-CRI), Gosselies, Belgium
| | - Abdulkader Azouz
- Université Libre de Bruxelles, Institute for Medical Immunology and ULB Center for Research in Immunology (U-CRI), Gosselies, Belgium
| | - Hussein Shehade
- Université Libre de Bruxelles, Institute for Medical Immunology and ULB Center for Research in Immunology (U-CRI), Gosselies, Belgium
| | - Marion Splittgerber
- Université Libre de Bruxelles, Institute for Medical Immunology and ULB Center for Research in Immunology (U-CRI), Gosselies, Belgium
| | - Laurye Van Maele
- Université Libre de Bruxelles, Institute for Medical Immunology and ULB Center for Research in Immunology (U-CRI), Gosselies, Belgium
| | - Muriel Nguyen
- Université Libre de Bruxelles, Institute for Medical Immunology and ULB Center for Research in Immunology (U-CRI), Gosselies, Belgium
| | - Séverine Thomas
- Université Libre de Bruxelles, Institute for Medical Immunology and ULB Center for Research in Immunology (U-CRI), Gosselies, Belgium
| | - Younes Achouri
- Université Catholique de Louvain, Institut de Duve, Brussels, Belgium
| | - David Svec
- Institute of Biotechnology, Czech Academy of Science, 252 50 Vestec u prahy, Czech Republic
| | - Emilie Calonne
- Université Libre de Bruxelles, Laboratory of Cancer Epigenetics, Brussels, Belgium
| | - François Fuks
- Université Libre de Bruxelles, Laboratory of Cancer Epigenetics, Brussels, Belgium
| | - Guillaume Oldenhove
- Université Libre de Bruxelles, Laboratoire d’Immunobiologie, Gosselies, Belgium
| | - Stanislas Goriely
- Université Libre de Bruxelles, Institute for Medical Immunology and ULB Center for Research in Immunology (U-CRI), Gosselies, Belgium
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7
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Oldenhove G, Boucquey E, Taquin A, Acolty V, Bonetti L, Ryffel B, Le Bert M, Englebert K, Boon L, Moser M. PD-1 Is Involved in the Dysregulation of Type 2 Innate Lymphoid Cells in a Murine Model of Obesity. Cell Rep 2018; 25:2053-2060.e4. [DOI: 10.1016/j.celrep.2018.10.091] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 06/19/2018] [Accepted: 10/24/2018] [Indexed: 11/28/2022] Open
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8
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Bowakim N, Acolty V, Dhainaut M, Yagita H, Oldenhove G, Leo O, Moser M. Role of the CD27/CD70 pathway in regulatory T cell function. The Journal of Immunology 2018. [DOI: 10.4049/jimmunol.200.supp.47.27] [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] [Indexed: 01/02/2023]
Abstract
Abstract
There is evidence that the CD27/CD70 pathway plays a major role in the regulation of immunity versus tolerance in vivo. In particular, the transgenic expression of CD70 by dendritic cells breaks tolerance and induces a lethal autoimmune disorder.
Although CD27 engagement on conventional T cells (Tconv) has been shown to induce Th1-type responses, the role of CD27, expressed at higher levels on regulatory T cells (Treg), remains elusive. Recent data from our laboratory have shown that CD27 expressed on Tregs was involved in the inhibition of CD70, suggesting that CD27 may display opposite functions, i.e. pro- or anti-inflammatory when expressed on Tconv and Treg, respectively.
The objective of this work was therefore to decipher the role of CD27 on Treg function.
Our data show that (i) injection of agonistic anti-CD27 mAb increased the development and function of Tregs, as assessed by increased proliferation and upregulation of hallmarks of Treg activation such as ICOS, GATA-3, Helios, and inhibitory molecules such as CTLA-4, PD-1 ; (ii) similarly, Tregs were activated in mice expressing CD70 in a constitutive manner (WT x CD70tg mice); (iii) CD27+ Tregs from WT mice were more activated and displayed higher suppressive capacity than CD27− Tregs.
These observations suggest that the CD27/CD70 pathway potentiates the homeostasis and inhibitory function of Tregs. Experiments are under way to identify the transcriptomic profile induced by CD27 engagement in Tregs and to analyze their function in various settings in vivo, using a CD27fl/fl mouse to selectively delete CD27 in Tregs.
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9
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Shehade H, Acolty V, Moser M, Oldenhove G. Cutting Edge: Hypoxia-Inducible Factor 1 Negatively Regulates Th1 Function. J I 2015; 195:1372-6. [DOI: 10.4049/jimmunol.1402552] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 06/23/2015] [Indexed: 12/19/2022]
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10
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Francois V, Shehade H, Acolty V, Preyat N, Delrée P, Moser M, Oldenhove G. Intestinal immunopathology is associated with decreased CD73-generated adenosine during lethal infection. Mucosal Immunol 2015; 8:773-84. [PMID: 25389034 DOI: 10.1038/mi.2014.108] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 10/02/2014] [Indexed: 02/04/2023]
Abstract
The ectonucleotidases CD39 and CD73 sequentially degrade the extracellular ATP pool and release immunosuppressive adenosine, thereby regulating inflammatory responses. This control is likely to be critical in the gastrointestinal tract where high levels of ATP are released in particular by commensal bacteria. The aim of this study was therefore to evaluate the involvement of the adenosinergic regulation in the intestine of mice in steady-state conditions and on acute infection with Toxoplasma gondii. We show that both conventional (Tconv) and regulatory (Treg) CD4(+) T lymphocytes express CD39 and CD73 in the intestine of naive mice. CD73 expression was downregulated during acute infection with T. gondii, leading to impaired capacity to produce adenosine. Interestingly, the expression of adenosine receptors was maintained and treatment with receptor agonists limited immunopathology and dysbiosis, suggesting that the activation of adenosine receptors may constitute an efficient approach to control intestinal inflammation associated with decreased ectonucleotidase expression.
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Affiliation(s)
- V Francois
- Department of Molecular Biology, Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium
| | - H Shehade
- Department of Molecular Biology, Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium
| | - V Acolty
- Department of Molecular Biology, Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium
| | - N Preyat
- Department of Molecular Biology, Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium
| | - P Delrée
- Institut de Pathologie et Génétique, Gosselies, Belgium
| | - M Moser
- Department of Molecular Biology, Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium
| | - G Oldenhove
- Department of Molecular Biology, Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium
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Dhainaut M, Coquerelle C, Uzureau S, Denoeud J, Acolty V, Oldenhove G, Galuppo A, Sparwasser T, Thielemans K, Pays E, Yagita H, Borst J, Moser M. Thymus-derived regulatory T cells restrain pro-inflammatory Th1 responses by downregulating CD70 on dendritic cells. EMBO J 2015; 34:1336-48. [PMID: 25787857 DOI: 10.15252/embj.201490312] [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: 10/14/2014] [Accepted: 02/18/2015] [Indexed: 01/17/2023] Open
Abstract
The severity and intensity of autoimmune disease in immune dysregulation, polyendocrinopathy, enteropathy, X-linked (IPEX) patients and in scurfy mice emphasize the critical role played by thymus-derived regulatory T cells (tTregs) in maintaining peripheral immune tolerance. However, although tTregs are critical to prevent lethal autoimmunity and excessive inflammatory responses, their suppressive mechanism remains elusive. Here, we demonstrate that tTregs selectively inhibit CD27/CD70-dependent Th1 priming, while leaving the IL-12-dependent pathway unaffected. Immunized mice depleted of tTregs showed an increased response of IFN-γ-secreting CD4(+) T cells that was strictly reliant on a functional CD27/CD70 pathway. In vitro studies revealed that tTregs downregulate CD70 from the plasma membrane of dendritic cells (DCs) in a CD27-dependent manner. CD70 downregulation required contact between Tregs and DCs and resulted in endocytosis of CD27 and CD70 into the DC. These findings reveal a novel mechanism by which tTregs can maintain tolerance or prevent excessive, proinflammatory Th1 responses.
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Affiliation(s)
- Maxime Dhainaut
- Department of Molecular Biology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Caroline Coquerelle
- Department of Molecular Biology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Sophie Uzureau
- Department of Molecular Biology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Julie Denoeud
- Department of Molecular Biology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Valérie Acolty
- Department of Molecular Biology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Guillaume Oldenhove
- Department of Molecular Biology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Adrien Galuppo
- Department of Molecular Biology, Université Libre de Bruxelles, Gosselies, Belgium Center for Microscopy and Molecular Imaging, Gosselies, Belgium
| | | | - Kris Thielemans
- Medical School, Vrije Universiteit Brussel, Brussels, Belgium
| | - Etienne Pays
- Department of Molecular Biology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Hideo Yagita
- Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan
| | - Jannie Borst
- Division of Immunology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Muriel Moser
- Department of Molecular Biology, Université Libre de Bruxelles, Gosselies, Belgium
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12
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Shehade H, Oldenhove G, Moser M. Hypoxia in the intestine or solid tumors: a beneficial or deleterious alarm signal? Eur J Immunol 2014; 44:2550-7. [PMID: 25043839 DOI: 10.1002/eji.201444719] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [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: 04/03/2014] [Revised: 06/01/2014] [Accepted: 07/08/2014] [Indexed: 12/15/2022]
Abstract
The transcription factor hypoxia inducible factors (HIF)-1 functions as a master regulator of oxygen homeostasis. There is increasing evidence that HIF has an essential role to prevent tissue damage in physiological and pathological situations in which cells are deprived of O2. Here, we review the effects of decreased oxygen supply on the innate and adaptive immune responses in the gut and in solid tumors in which the oxygenation profile correlates with the grade of inflammation. Data in the literature indicate that some tumors may co-opt immune mechanisms induced by HIF-1 to promote their survival and proliferation. By contrast, HIF-1 stabilization would have a beneficial effect in the intestinal tract as it would dampen inflammation and promote its resolution. Therefore, stabilization of HIF-1 in hypoxia may have opposite effects on the integrity of the host, depending on the tissue microenvironment.
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Affiliation(s)
- Hussein Shehade
- Laboratory of Immunobiology, Université Libre de Bruxelles, Gosselies, Belgium
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13
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Rahir G, Wathelet N, Hanoteau A, Henin C, Oldenhove G, Galuppo A, Lanaya H, Colau D, Mackay CR, Van den Eynde B, Moser M. Cyclophosphamide treatment induces rejection of established P815 mastocytoma by enhancing CD4 priming and intratumoral infiltration of P1E/H-2K(d) -specific CD8+ T cells. Int J Cancer 2013; 134:2841-52. [PMID: 24249003 DOI: 10.1002/ijc.28617] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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: 06/24/2013] [Revised: 10/25/2013] [Accepted: 11/04/2013] [Indexed: 12/22/2022]
Abstract
There is increasing evidence that the effect of chemotherapy on tumor growth is not cell autonomous but relies on the immune system. The objective of this study was therefore to decipher the cellular and molecular mechanisms underlying the role of innate and adaptive immunity in chemotherapy-induced tumor rejection. Treatment of DBA/2 mice bearing P815 mastocytoma with cyclophosphamide induced rejection and long-term protection in a CD4- and CD8-dependent manner. A population of inflammatory-type dendritic cells was dramatically expanded in the lymph nodes of mice that rejected the tumor and correlated with CD4-dependent infiltration, in tumor bed, of tumor-specific CD8+ T lymphocytes. Our data point to a major role of CD4+ T cells in inducing chemokine expression in the tumor, provoking migration of tumor-specific CXCR3+ CD8+ T lymphocytes. Importantly, the analysis of CD8+ T cells specific to P1A/H-2L(d) and P1E/H-2K(d) revealed that cyclophosphamide altered the P815-specific CD8 T repertoire by amplifying the response specific to the mutated P1E antigen.
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Affiliation(s)
- Gwendoline Rahir
- Department of Molecular Biology, Université Libre de Bruxelles, Gosselies, Belgium
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14
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Hall AO, Beiting DP, Tato C, John B, Oldenhove G, Lombana CG, Pritchard GH, Silver JS, Bouladoux N, Stumhofer JS, Harris TH, Grainger J, Wojno EDT, Wagage S, Roos DS, Scott P, Turka LA, Cherry S, Reiner SL, Cua D, Belkaid Y, Elloso MM, Hunter CA. The cytokines interleukin 27 and interferon-γ promote distinct Treg cell populations required to limit infection-induced pathology. Immunity 2012; 37:511-23. [PMID: 22981537 DOI: 10.1016/j.immuni.2012.06.014] [Citation(s) in RCA: 268] [Impact Index Per Article: 22.3] [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: 03/03/2011] [Revised: 06/06/2012] [Accepted: 06/13/2012] [Indexed: 12/13/2022]
Abstract
Interferon-γ (IFN-γ) promotes a population of T-bet(+) CXCR3(+) regulatory T (Treg) cells that limit T helper 1 (Th1) cell-mediated pathology. Our studies demonstrate that interleukin-27 (IL-27) also promoted expression of T-bet and CXCR3 in Treg cells. During infection with Toxoplasma gondii, a similar population emerged that limited T cell responses and was dependent on IFN-γ in the periphery but on IL-27 at mucosal sites. Transfer of Treg cells ameliorated the infection-induced pathology observed in Il27(-/-) mice, and this was dependent on their ability to produce IL-10. Microarray analysis revealed that Treg cells exposed to either IFN-γ or IL-27 have distinct transcriptional profiles. Thus, IFN-γ and IL-27 have different roles in Treg cell biology and IL-27 is a key cytokine that promotes the development of Treg cells specialized to control Th1 cell-mediated immunity at local sites of inflammation.
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MESH Headings
- Animals
- Cell Differentiation/drug effects
- Cell Differentiation/immunology
- Cells, Cultured
- Female
- Flow Cytometry
- Forkhead Transcription Factors/genetics
- Forkhead Transcription Factors/immunology
- Forkhead Transcription Factors/metabolism
- Gene Expression Profiling
- Interferon-gamma/genetics
- Interferon-gamma/immunology
- Interferon-gamma/pharmacology
- Interleukin-17/genetics
- Interleukin-17/immunology
- Interleukin-17/pharmacology
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Inbred CBA
- Mice, Knockout
- Mice, Transgenic
- Oligonucleotide Array Sequence Analysis
- Receptors, CXCR3/genetics
- Receptors, CXCR3/immunology
- Receptors, CXCR3/metabolism
- STAT1 Transcription Factor/genetics
- STAT1 Transcription Factor/immunology
- STAT1 Transcription Factor/metabolism
- Salmonella Infections, Animal/immunology
- Salmonella Infections, Animal/microbiology
- Salmonella Infections, Animal/pathology
- Salmonella typhimurium/immunology
- T-Box Domain Proteins/genetics
- T-Box Domain Proteins/immunology
- T-Box Domain Proteins/metabolism
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Toxoplasma/immunology
- Toxoplasmosis, Animal/immunology
- Toxoplasmosis, Animal/parasitology
- Toxoplasmosis, Animal/pathology
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Affiliation(s)
- Aisling O'Hara Hall
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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15
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Wohlfert EA, Grainger JR, Bouladoux N, Konkel JE, Oldenhove G, Ribeiro CH, Hall JA, Yagi R, Naik S, Bhairavabhotla R, Paul WE, Bosselut R, Wei G, Zhao K, Oukka M, Zhu J, Belkaid Y. GATA3 controls Foxp3⁺ regulatory T cell fate during inflammation in mice. J Clin Invest 2011; 121:4503-15. [PMID: 21965331 DOI: 10.1172/jci57456] [Citation(s) in RCA: 410] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Accepted: 08/24/2011] [Indexed: 12/17/2022] Open
Abstract
Tregs not only keep immune responses to autoantigens in check, but also restrain those directed toward pathogens and the commensal microbiota. Control of peripheral immune homeostasis by Tregs relies on their capacity to accumulate at inflamed sites and appropriately adapt to their local environment. To date, the factors involved in the control of these aspects of Treg physiology remain poorly understood. Here, we show that the canonical Th2 transcription factor GATA3 is selectively expressed in Tregs residing in barrier sites including the gastrointestinal tract and the skin. GATA3 expression in both murine and human Tregs was induced upon TCR and IL-2 stimulation. Although GATA3 was not required to sustain Treg homeostasis and function at steady state, GATA3 played a cardinal role in Treg physiology during inflammation. Indeed, the intrinsic expression of GATA3 by Tregs was required for their ability to accumulate at inflamed sites and to maintain high levels of Foxp3 expression in various polarized or inflammatory settings. Furthermore, our data indicate that GATA3 limits Treg polarization toward an effector T cell phenotype and acquisition of effector cytokines in inflamed tissues. Overall, our work reveals what we believe to be a new facet in the complex role of GATA3 in T cells and highlights what may be a fundamental role in controlling Treg physiology during inflammation.
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Affiliation(s)
- Elizabeth A Wohlfert
- Mucosal Immunology Unit, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
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16
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Hall JA, Cannons JL, Grainger JR, Dos Santos LM, Hand TW, Naik S, Wohlfert EA, Chou DB, Oldenhove G, Robinson M, Grigg ME, Kastenmayer R, Schwartzberg PL, Belkaid Y. Essential role for retinoic acid in the promotion of CD4(+) T cell effector responses via retinoic acid receptor alpha. Immunity 2011; 34:435-47. [PMID: 21419664 DOI: 10.1016/j.immuni.2011.03.003] [Citation(s) in RCA: 290] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Revised: 12/14/2010] [Accepted: 12/29/2010] [Indexed: 12/17/2022]
Abstract
Vitamin A and its metabolite, retinoic acid (RA) are implicated in the regulation of immune homeostasis via the peripheral induction of regulatory T cells. Here we showed RA was also required to elicit proinflammatory CD4(+) helper T cell responses to infection and mucosal vaccination. Retinoic acid receptor alpha (RARα) was the critical mediator of these effects. Antagonism of RAR signaling and deficiency in RARα (Rara(-/-)) resulted in a cell-autonomous CD4(+) T cell activation defect, which impaired intermediate signaling events, including calcium mobilization. Altogether, these findings reveal a fundamental role for the RA-RARα axis in the development of both regulatory and inflammatory arms of adaptive immunity and establish nutritional status as a broad regulator of adaptive T cell responses.
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Affiliation(s)
- Jason A Hall
- Mucosal Immunology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
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17
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Abstract
Each microenvironment is controlled by a specific set of regulatory elements that have to be finely and constantly tuned to maintain local homeostasis. These environments could be site specific, such as the gut environment, or induced by chronic exposure to microbes. Various populations of dendritic cells are central to the orchestration of this control. In this review, we discuss some new findings associating dendritic cells from defined compartments with the induction and control of regulatory T cells in the context of exposure to both commensal and pathogenic microbes.
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Affiliation(s)
- John R Grainger
- Mucosal Immunology Unit, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20894, USA
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18
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Oldenhove G, Bouladoux N, Wohlfert EA, Hall JA, Chou D, Dos Santos L, O'Brien S, Blank R, Lamb E, Natarajan S, Kastenmayer R, Hunter C, Grigg ME, Belkaid Y. Decrease of Foxp3+ Treg cell number and acquisition of effector cell phenotype during lethal infection. Immunity 2009; 31:772-86. [PMID: 19896394 DOI: 10.1016/j.immuni.2009.10.001] [Citation(s) in RCA: 474] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2009] [Revised: 08/25/2009] [Accepted: 09/15/2009] [Indexed: 01/08/2023]
Abstract
Using a model of lethal oral infection with Toxoplasma gondii, we examined the fate of both induced and natural regulatory T (Treg) cells in the face of strong inflammatory responses occurring in a tolerogenic-prone environment. We found that during highly T helper 1 (Th1) cell-polarized mucosal immune responses, Treg cell numbers collapsed via multiple pathways, including blockade of Treg cell induction and disruption of endogenous Treg cell homeostasis. In particular, shutdown of interleukin 2 (IL-2) in the highly Th1 cell-polarized environment triggered by infection directly contributes to Treg cell incapacity to suppress effector responses and eventually leads to immunopathogenesis. Furthermore, we found that environmental cues provided by both local dendritic cells and effector T cells can induce the expression of T-bet transcription factor and IFN-gamma by Treg cells. These data reveal a mechanism for Th1 cell pathogenicity that extends beyond their proinflammatory program to limit Treg cell survival.
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Affiliation(s)
- Guillaume Oldenhove
- Mucosal Immunology Unit, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
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19
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Hall JA, Sun CM, Oldenhove G, Wohlfert E, Kastenmeyer R, Belkaid Y. Vitamin A derived retinoic acid signaling mediates intestinal immune homeostasis and immunity. Cytokine 2009. [DOI: 10.1016/j.cyto.2009.07.359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Coquerelle C, Oldenhove G, Acolty V, Denoeud J, Vansanten G, Verdebout JM, Mellor A, Bluestone JA, Moser M. Anti-CTLA-4 treatment induces IL-10-producing ICOS+ regulatory T cells displaying IDO-dependent anti-inflammatory properties in a mouse model of colitis. Gut 2009; 58:1363-73. [PMID: 19505881 PMCID: PMC2917097 DOI: 10.1136/gut.2008.162842] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND AIMS Cytotoxic T lymphocyte-associated antigen 4 (CTLA-4) has been shown to act as a negative regulator of T cell function and has been implicated in the regulation of T helper 1 (Th1)/Th2 development and the function of regulatory T cells. Tests were carried out to determine whether anti-CTLA-4 treatment would alter the polarisation of naive T cells in vivo. METHODS Mice were treated with anti-CTLA-4 monoclonal antibody (mAb) (UC10-4F10) at the time of immunisation or colonic instillation of trinitrobenzene sulfonic acid (TNBS). The cytokines produced by lymph node cells after in vitro antigenic stimulation and the role of indoleamine 2,3 dioxygenase (IDO) and of interleukin-10 (IL-10) were tested, and the survival of mice was monitored. RESULTS Injection of anti-CTLA-4 mAb in mice during priming induced the development of adaptive CD4(+) regulatory T cells which expressed high levels of ICOS (inducible co-stimulator), secreted IL-4 and IL-10. This treatment inhibited Th1 memory responses in vivo and repressed experimental intestinal inflammation. The anti-CTLA-4-induced amelioration of disease correlated with IDO expression and infiltration of ICOS(high) Foxp3(+) T cells in the intestine, suggesting that anti-CTLA-4 acted indirectly through the development of regulatory T cells producing IL-10 and inducing IDO. CONCLUSIONS These observations emphasise the synergy between IL-10 and IDO as anti-inflammatory agents and highlight anti-CTLA-4 treatment as a potential novel immunotherapeutic approach for inducing adaptive regulatory T cells.
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Affiliation(s)
- C Coquerelle
- Département de Biologie Moléculaire, Université Libre de Bruxelles, Gosselies, Belgium
| | - G Oldenhove
- Département de Biologie Moléculaire, Université Libre de Bruxelles, Gosselies, Belgium
| | - V Acolty
- Département de Biologie Moléculaire, Université Libre de Bruxelles, Gosselies, Belgium
| | - J Denoeud
- Département de Biologie Moléculaire, Université Libre de Bruxelles, Gosselies, Belgium
| | - G Vansanten
- Département de Biologie Moléculaire, Université Libre de Bruxelles, Gosselies, Belgium
| | - J-M Verdebout
- Département d’anatomopathologie, Institut de Pathologie et de Génétique, Gosselies, Belgium
| | - A Mellor
- Immunotherapy Center, Medical College of Georgia, Augusta, Georgia, USA
| | - J A Bluestone
- UCSF Diabetes Center, Department of Medicine, UCSF, San Francisco, California, USA
| | - M Moser
- Département de Biologie Moléculaire, Université Libre de Bruxelles, Gosselies, Belgium
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21
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De Wilde V, Van Rompaey N, Hill M, Lebrun JF, Lemaître P, Lhommé F, Kubjak C, Vokaer B, Oldenhove G, Charbonnier LM, Cuturi MC, Goldman M, Le Moine A. Endotoxin-induced myeloid-derived suppressor cells inhibit alloimmune responses via heme oxygenase-1. Am J Transplant 2009; 9:2034-47. [PMID: 19681826 DOI: 10.1111/j.1600-6143.2009.02757.x] [Citation(s) in RCA: 124] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Inflammation and cancer are associated with impairment of T-cell responses by a heterogeneous population of myeloid-derived suppressor cells (MDSCs) coexpressing CD11b and GR-1 antigens. MDSCs have been recently implicated in costimulation blockade-induced transplantation tolerance in rats, which was under the control of inducible NO synthase (iNOS). Herein, we describe CD11b+GR-1+MDSC-compatible cells appearing after repetitive injections of lipopolysaccharide (LPS) using a unique mechanism of suppression. These cells suppressed T-cell proliferation and Th1 and Th2 cytokine production in both mixed lymphocyte reaction and polyclonal stimulation assays. Transfer of CD11b+ cells from LPS-treated mice in untreated recipients significantly prolonged skin allograft survival. They produced large amounts of IL-10 and expressed heme oxygenase-1 (HO-1), a stress-responsive enzyme endowed with immunoregulatory and cytoprotective properties not previously associated with MDSC activity. HO-1 inhibition by the specific inhibitor, SnPP, completely abolished T-cell suppression and IL-10 production. In contrast, neither iNOS nor arginase 1 inhibition did affect suppression. Importantly, HO-1 inhibition before CD11b+ cell transfer prevented the delay of allograft rejection revealing a new MDSC-associated suppressor mechanism relevant for transplantation.
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Affiliation(s)
- V De Wilde
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
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22
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De Wilde V, Van Rompaey N, Hill M, Lebrun JF, Lemaître P, Lhommé F, Kubjak C, Vokaer B, Oldenhove G, Charbonnier LM, Cuturi MC, Goldman M, Le Moine A. Endotoxin-induced myeloid-derived suppressor cells inhibit alloimmune responses via heme oxygenase-1. Am J Transplant 2009. [PMID: 19681826 DOI: 10.1111/j.1600-6143.2009.02757] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Inflammation and cancer are associated with impairment of T-cell responses by a heterogeneous population of myeloid-derived suppressor cells (MDSCs) coexpressing CD11b and GR-1 antigens. MDSCs have been recently implicated in costimulation blockade-induced transplantation tolerance in rats, which was under the control of inducible NO synthase (iNOS). Herein, we describe CD11b+GR-1+MDSC-compatible cells appearing after repetitive injections of lipopolysaccharide (LPS) using a unique mechanism of suppression. These cells suppressed T-cell proliferation and Th1 and Th2 cytokine production in both mixed lymphocyte reaction and polyclonal stimulation assays. Transfer of CD11b+ cells from LPS-treated mice in untreated recipients significantly prolonged skin allograft survival. They produced large amounts of IL-10 and expressed heme oxygenase-1 (HO-1), a stress-responsive enzyme endowed with immunoregulatory and cytoprotective properties not previously associated with MDSC activity. HO-1 inhibition by the specific inhibitor, SnPP, completely abolished T-cell suppression and IL-10 production. In contrast, neither iNOS nor arginase 1 inhibition did affect suppression. Importantly, HO-1 inhibition before CD11b+ cell transfer prevented the delay of allograft rejection revealing a new MDSC-associated suppressor mechanism relevant for transplantation.
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Affiliation(s)
- V De Wilde
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
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23
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Abstract
The body requires the generation of regulatory T (Treg) cells to preserve its integrity. Each microenvironment is controlled by a specific set of regulatory elements that have to be finefrly and constantly tuned to maintain local homeostasis. These environments could be site specific, such as the gut environment, or induced by chronic exposure to microbes or tumors. Various populations of dendritic cells (DCs) are central to the orchestration of this control. In this review, we will discuss some new findings associating DCs from defined compartments with the induction of antigen-specific Treg cells.
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Affiliation(s)
- Yasmine Belkaid
- Mucosal Immunology Unit, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20894, USA
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24
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De Wilde V, Benghiat F, Novalrivas M, Lebrun JF, Kubjak C, Oldenhove G, Verdebout JM, Goldman M, Le Moine A. Endotoxin hyperresponsiveness upon CD4+ T cell reconstitution in lymphopenic mice: control by natural regulatory T cells. Eur J Immunol 2008; 38:48-53. [DOI: 10.1002/eji.200737534] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Guilliams M, Oldenhove G, Noel W, Hérin M, Brys L, Loi P, Flamand V, Moser M, De Baetselier P, Beschin A. African Trypanosomiasis: Naturally Occurring Regulatory T Cells Favor Trypanotolerance by Limiting Pathology Associated with Sustained Type 1 Inflammation. J Immunol 2007; 179:2748-57. [PMID: 17709488 DOI: 10.4049/jimmunol.179.5.2748] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Tolerance to African trypanosomes requires the production of IFN-gamma in the early stage of infection that triggers the development of classically activated macrophages controlling parasite growth. However, once the first peak of parasitemia has been controlled, down-regulation of the type 1 immune response has been described. In this study, we have evaluated whether regulatory T cells (Tregs) contribute to the limitation of the immune response occurring during Trypanosoma congolense infection and hereby influence the outcome of the disease in trypanotolerant C57BL/6 host. Our data show that Foxp3+ Tregs originating from the naturally occurring Treg pool expanded in the spleen and the liver of infected mice. These cells produced IL-10 and limited the production of IFN-gamma by CD4+ and CD8+ effector T cells. Tregs also down-regulated classical activation of macrophages resulting in reduced TNF-alpha production. The Treg-mediated suppression of the type 1 inflammatory immune response did not hamper parasite clearance, but was beneficial for the host survival by limiting the tissue damages, including liver injury. Collectively, these data suggest a cardinal role for naturally occurring Tregs in the development of a trypanotolerant phenotype during African trypanosomiasis.
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Affiliation(s)
- Martin Guilliams
- Department of Molecular and Cellular Interactions, Vlaams Instituut voor Biotechnologie, Vrije Universiteit Brussel, 1050 Brussels, Belgium
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26
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Eddahri F, Oldenhove G, Denanglaire S, Urbain J, Leo O, Andris F. CD4+ CD25+ regulatory T cells control the magnitude of T-dependent humoral immune responses to exogenous antigens. Eur J Immunol 2006; 36:855-63. [PMID: 16511897 DOI: 10.1002/eji.200535500] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
CD4+ CD25+ T reg cells are critical for peripheral tolerance and prevention of autoimmunity. Here we show that CD4+ CD25+ T reg also regulate the magnitude of humoral responses against a panel of T-dependent antigens of foreign origin during both primary and secondary immune responses. Depletion of CD4+ CD25+ T cells leads to increased antigen-specific antibody production and affinity maturation but does not affect T-independent B cell responses, suggesting that CD4+ CD25+ T reg exert a feedback mechanism on non-self antigen-specific antibody secretion by dampening the T cell help for B cell activation. Moreover, we show that CD4+ CD25+ T reg also suppress in vitro B cell immunoglobulin production by inhibiting CD4+ CD25- T cell help delivery, and that blockade of TGF-beta activity abolishes this suppression.
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Affiliation(s)
- Fouad Eddahri
- Laboratoire de Physiologie animale, Université Libre de Bruxelles, Gosselies, Belgium
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de Heusch M, Oldenhove G, Urbain J, Thielemans K, Maliszewski C, Leo O, Moser M. Depending on their maturation state, splenic dendritic cells induce the differentiation of CD4+ T lymphocytes into memory and/or effector cellsin vivo. Eur J Immunol 2004; 34:1861-9. [PMID: 15214034 DOI: 10.1002/eji.200424878] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
There is increasing evidence that dendritic cells (DC) display opposite functions in the immune system, as they may induce immunity or tolerance depending on intrinsic and environmental factors. In mice, adoptive transfer of mature DC pulsed extracorporeally with antigen induces the development of antigen-specific Th1- and Th2-type CD4(+) cells. In this work, we compared the adjuvant properties of immature (freshly isolated) and mature (cultured) splenic DC in vivo. Our data show that injection of either cell population induces the clonal expansion of CD4(+) T cells but that only mature DC trigger their differentiation into effector cells producing IFN-gamma. In contrast, transfer of immature DC provokes the development of intermediates in the differentiation process, similar to the central memory cells. These observations, together with data in the literature, suggest that DC may induce tolerance, memory, or immunity depending on their maturation state.
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Affiliation(s)
- Magali de Heusch
- Institut de Biologie et Médecine Moléculaires, Université Libre de Bruxelles, Gosselies, Belgium
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Oldenhove G, de Heusch M, Urbain-Vansanten G, Urbain J, Maliszewski C, Leo O, Moser M. CD4+ CD25+ regulatory T cells control T helper cell type 1 responses to foreign antigens induced by mature dendritic cells in vivo. J Exp Med 2003; 198:259-66. [PMID: 12874259 PMCID: PMC2194073 DOI: 10.1084/jem.20030654] [Citation(s) in RCA: 184] [Impact Index Per Article: 8.8] [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] [Indexed: 01/07/2023] Open
Abstract
Recent evidence suggests that in addition to their well known stimulatory properties, dendritic cells (DCs) may play a major role in peripheral tolerance. It is still unclear whether a distinct subtype or activation status of DC exists that promotes the differentiation of suppressor rather than effector T cells from naive precursors. In this work, we tested whether the naturally occurring CD4+ CD25+ regulatory T cells (Treg) may control immune responses induced by DCs in vivo. We characterized the immune response induced by adoptive transfer of antigen-pulsed mature DCs into mice depleted or not of CD25+ cells. We found that the development of major histocompatibility complex class I and II-restricted interferon gamma-producing cells was consistently enhanced in the absence of Treg. By contrast, T helper cell (Th)2 priming was down-regulated in the same conditions. This regulation was independent of interleukin 10 production by DCs. Of note, splenic DCs incubated in vitro with Toll-like receptor ligands (lipopolysaccharide or CpG) activated immune responses that remained sensitive to Treg function. Our data further show that mature DCs induced higher cytotoxic activity in CD25-depleted recipients as compared with untreated hosts. We conclude that Treg naturally exert a negative feedback mechanism on Th1-type responses induced by mature DCs in vivo.
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Affiliation(s)
- Guillaume Oldenhove
- Institut de Biologie et Médecine Moléculaires, Université Libre de Bruxelles, 6041 Gosselies, Belgium
| | - Magali de Heusch
- Institut de Biologie et Médecine Moléculaires, Université Libre de Bruxelles, 6041 Gosselies, Belgium
| | | | - Jacques Urbain
- Institut de Biologie et Médecine Moléculaires, Université Libre de Bruxelles, 6041 Gosselies, Belgium
| | | | - Oberdan Leo
- Institut de Biologie et Médecine Moléculaires, Université Libre de Bruxelles, 6041 Gosselies, Belgium
| | - Muriel Moser
- Institut de Biologie et Médecine Moléculaires, Université Libre de Bruxelles, 6041 Gosselies, Belgium
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