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Rai R, Steinberg Z, Romito M, Zinghirino F, Hu YT, White N, Naseem A, Thrasher AJ, Turchiano G, Cavazza A. CRISPR/Cas9-Based Disease Modeling and Functional Correction of Interleukin 7 Receptor Alpha Severe Combined Immunodeficiency in T-Lymphocytes and Hematopoietic Stem Cells. Hum Gene Ther 2024; 35:269-283. [PMID: 38251667 DOI: 10.1089/hum.2023.100] [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] [Indexed: 01/23/2024] Open
Abstract
Interleukin 7 Receptor alpha Severe Combined Immunodeficiency (IL7R-SCID) is a life-threatening disorder caused by homozygous mutations in the IL7RA gene. Defective IL7R expression in humans hampers T cell precursors' proliferation and differentiation during lymphopoiesis resulting in the absence of T cells in newborns, who succumb to severe infections and death early after birth. Previous attempts to tackle IL7R-SCID by viral gene therapy have shown that unregulated IL7R expression predisposes to leukemia, suggesting the application of targeted gene editing to insert a correct copy of the IL7RA gene in its genomic locus and mediate its physiological expression as a more feasible therapeutic approach. To this aim, we have first developed a CRISPR/Cas9-based IL7R-SCID disease modeling system that recapitulates the disease phenotype in primary human T cells and hematopoietic stem and progenitor cells (HSPCs). Then, we have designed a knockin strategy that targets IL7RA exon 1 and introduces through homology-directed repair a corrective, promoterless IL7RA cDNA followed by a reporter cassette through AAV6 transduction. Targeted integration of the corrective cassette in primary T cells restored IL7R expression and rescued functional downstream IL7R signaling. When applied to HSPCs further induced to differentiate into T cells in an Artificial Thymic Organoid system, our gene editing strategy overcame the T cell developmental block observed in IL7R-SCID patients, while promoting full maturation of T cells with physiological and developmentally regulated IL7R expression. Finally, genotoxicity assessment of the CRISPR/Cas9 platform in HSPCs using biased and unbiased technologies confirmed the safety of the strategy, paving the way for a new, efficient, and safe therapeutic option for IL7R-SCID patients.
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Affiliation(s)
- Rajeev Rai
- Infection, Immunity, and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Zohar Steinberg
- Infection, Immunity, and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Marianna Romito
- Infection, Immunity, and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Federica Zinghirino
- Infection, Immunity, and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Yi-Ting Hu
- Infection, Immunity, and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Nathan White
- Infection, Immunity, and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Asma Naseem
- Infection, Immunity, and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Adrian J Thrasher
- Infection, Immunity, and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
- NIHR Great Ormond Street Hospital Biomedical Research Center, London, United Kingdom
| | - Giandomenico Turchiano
- Infection, Immunity, and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Alessia Cavazza
- Infection, Immunity, and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
- NIHR Great Ormond Street Hospital Biomedical Research Center, London, United Kingdom
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia School of Medicine, Modena, Italy
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Kumar S, Bodhale N, Patra SK, Sarode A, Zhao L, Sarkar A, Saha B. Interleukin-7 potentiates MAPK10-elicited host-protective vaccine against Leishmania donovani. Cytokine 2024; 174:156475. [PMID: 38134556 DOI: 10.1016/j.cyto.2023.156475] [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: 10/12/2023] [Revised: 11/29/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023]
Abstract
Leishmania donovani causes the potentially fatal disease visceral leishmaniasis for which neither a vaccine nor an adjuvant for human use exists. Although interleukin-7 (IL-7) is implicated in CD4+ T-cell response stabilization, its anti-leishmanial function is uncertain. Therefore, we examined whether IL-7 would potentiate the efficacy of Leishmania major-expressed MAPK10 (LmjMAPK10; M10)-elicited anti-leishmanial host-protective response. We observed that aligning with IL-7R expression, IL-7 increased IFN-γ-secreting TH1 cell but reduced IL-4-producing TH2 cells and production of IL-10 and TGF-β effectuating anti-leishmanial functions in susceptible BALB/c mouse-derived macrophages. Co-culturing IL-7-pre-treated L. donovani-infected macrophages with L. donovani-infected BALB/c-derived T cells induced IFN-γ-dominated TH1 type anti-leishmanial function. IL-7 treatment of L. donovani-infected BALB/c mice significantly reduced splenic and hepatic parasite loads. Co-culturing CD4+ T cells from IL to 7-treated mice with L. donovani-infected macrophages reduced amastigote numbers suggesting IL-7-elicited host-protective effector T cells. Priming BALB/c with M10 + IL-7 reduced the splenic parasite burden more effectively than that was observed in M10-primed mice. An enhanced protection against L. donovani infection was accompanied by enhanced IL-12 and IFN-γ, but suppressed IL-10 and IL-4, response and host-protective TH1 and memory T cells. These results indicate IL-7-induced leishmanial antigen-specific memory T cell response that protects a susceptible host against L. donovani infection.
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Affiliation(s)
- Sunil Kumar
- National Centre for Cell Science, Ganeshkhind, Pune 411007. India
| | - Neelam Bodhale
- National Centre for Cell Science, Ganeshkhind, Pune 411007. India
| | | | - Aditya Sarode
- National Centre for Cell Science, Ganeshkhind, Pune 411007. India
| | - Ling Zhao
- Ling Zhao, Huazhong Agricultural University, Wuhan 430070, China
| | - Arup Sarkar
- Trident Academy of Creative Technology, Bhubaneswar 751024. India
| | - Bhaskar Saha
- National Centre for Cell Science, Ganeshkhind, Pune 411007. India; Trident Academy of Creative Technology, Bhubaneswar 751024. India.
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Acheampong I, Minadzi D, Adankwah E, Aniagyei W, Vivekanandan MM, Yeboah A, Arthur JF, Lamptey M, Abass MK, Kumbel F, Osei-Yeboah F, Gawusu A, Laing EF, Batsa Debrah L, Owusu DO, Debrah A, Mayatepek E, Seyfarth J, Phillips RO, Jacobsen M. Diminished Interleukin-7 receptor expression on T-cell subsets in tuberculosis patients. Hum Immunol 2023; 84:543-550. [PMID: 37580215 DOI: 10.1016/j.humimm.2023.08.141] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/03/2023] [Accepted: 08/07/2023] [Indexed: 08/16/2023]
Abstract
Immunopathology in human tuberculosis affects T-cell phenotype and functions. Previous studies identified impaired T-cell sensitivity to Interleukin (IL)-7 accompanied by lower IL-7 receptor α-chain (IL-7Rα) expression in patients with acute tuberculosis. In the present study, we characterized affected T-cell subsets and determined the influence of tuberculosis disease severity and treatment response. Tuberculosis patients (n = 89) as well as age- and gender-matched asymptomatic contacts (controls, n = 47) were recruited in Ghana. Mycobacterium (M.) tuberculosis sputum burden was monitored prior to and during treatment. Blood samples from all patients and controls were analyzed for IL-7Rα expression and T-cell markers by multi-colour flow cytometry. CD4+ and CD8+ T-cells of tuberculosis patients showed generally lower IL-7Rα expression as compared to controls. Concomitantly, tuberculosis patients had higher proportions of naïve and lower proportions of memory CD4+ T-cells. Notably, a subset of CD27 positive central memory T-cells (Tcm), which lacked IL-7Rα expression was enriched in tuberculosis patients as compared to controls. M. tuberculosis sputum burden was not associated with differences in IL-7Rα expression. Treatment duration and response showed no clear effects although IL-7Rα expression patterns were highly variable. These results suggested generally impaired generation of memory CD4+ T-cells and enrichment of a Tcm subset without IL-7Rα expression in patients with tuberculosis.
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Affiliation(s)
- Isaac Acheampong
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Difery Minadzi
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Ernest Adankwah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Wilfred Aniagyei
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | | | - Augustine Yeboah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Joseph F Arthur
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Millicent Lamptey
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | | | | | | | - Amidu Gawusu
- Sene West Health Directorate, Kwame Danso, Ghana
| | - Edwin F Laing
- School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Linda Batsa Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Dorcas O Owusu
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Alexander Debrah
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, 40225 Duesseldorf, Germany
| | - Julia Seyfarth
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, 40225 Duesseldorf, Germany
| | - Richard O Phillips
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana; School of Medicine and Dentistry, College of Health Sciences, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana
| | - Marc Jacobsen
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, Medical Faculty, University Hospital Duesseldorf, Heinrich-Heine University, 40225 Duesseldorf, Germany.
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Courtois L, Cabannes-Hamy A, Kim R, Delecourt M, Pinton A, Charbonnier G, Feroul M, Smith C, Tueur G, Pivert C, Balducci E, Simonin M, Angel LH, Spicuglia S, Boissel N, Andrieu GP, Asnafi V, Rousselot P, Lhermitte L. IL-7 receptor expression is frequent in T-cell acute lymphoblastic leukemia and predicts sensitivity to JAK inhibition. Blood 2023; 142:158-171. [PMID: 37023368 DOI: 10.1182/blood.2022017948] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 03/10/2023] [Accepted: 03/12/2023] [Indexed: 04/08/2023] Open
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive hematological malignancy with a dismal prognosis related to refractory/relapsing diseases, raising the need for new targeted therapies. Activating mutations of interleukin-7-receptor pathway genes (IL-7Rp) play a proven leukemia-supportive role in T-ALL. JAK inhibitors, such as ruxolitinib, have recently demonstrated preclinical efficacy. However, prediction markers for sensitivity to JAK inhibitors are still lacking. Herein, we show that IL-7R (CD127) expression is more frequent (∼70%) than IL-7Rp mutations in T-ALL (∼30%). We compared the so-called nonexpressers (no IL-7R expression/IL-7Rp mutation), expressers (IL7R expression without IL-7Rp mutation), and mutants (IL-7Rp mutations). Integrative multiomics analysis outlined IL-7R deregulation in virtually all T-ALL subtypes, at the epigenetic level in nonexpressers, genetic level in mutants, and posttranscriptional level in expressers. Ex vivo data using primary-derived xenografts support that IL-7Rp is functional whenever the IL-7R is expressed, regardless of the IL-7Rp mutational status. Consequently, ruxolitinib impaired T-ALL survival in both expressers and mutants. Interestingly, we show that expressers displayed ectopic IL-7R expression and IL-7Rp addiction conferring a deeper sensitivity to ruxolitinib. Conversely, mutants were more sensitive to venetoclax than expressers. Overall, the combination of ruxolitinib and venetoclax resulted in synergistic effects in both groups. We illustrate the clinical relevance of this association by reporting the achievement of complete remission in 2 patients with refractory/relapsed T-ALL. This provides proof of concept for translation of this strategy into clinics as a bridge-to-transplantation therapy. IL7R expression can be used as a biomarker for sensitivity to JAK inhibition, thereby expanding the fraction of patients with T-ALL eligible for ruxolitinib up to nearly ∼70% of T-ALL cases.
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Affiliation(s)
- Lucien Courtois
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, France
- Hôpital Necker Enfants-Malades, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Aurélie Cabannes-Hamy
- Department of Hematology and Oncology, Université de Versailles Saint-Quentin-en-Yvelines, Centre Hospitalier de Versailles, Le Chesnay, France
| | - Rathana Kim
- Université Paris Diderot, Institut Universitaire d'Hématologie, Assistance Publique-Hôpitaux de Paris, University Hospital Saint-Louis, Paris, France
| | - Marine Delecourt
- Hôpital Necker Enfants-Malades, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Antoine Pinton
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, France
- Hôpital Necker Enfants-Malades, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Guillaume Charbonnier
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, France
- Hôpital Necker Enfants-Malades, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Mélanie Feroul
- Hôpital Necker Enfants-Malades, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Charlotte Smith
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, France
| | - Giulia Tueur
- Hôpital Necker Enfants-Malades, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Cécile Pivert
- Hôpital Necker Enfants-Malades, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Estelle Balducci
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, France
- Hôpital Necker Enfants-Malades, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Mathieu Simonin
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, France
- Hôpital Necker Enfants-Malades, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Laure Hélène Angel
- Hôpital Necker Enfants-Malades, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Salvatore Spicuglia
- Aix-Marseille University, Theories and Approaches of Genomic Complexity, INSERM UMR-1090, Marseille, France
- Equipe Labélisée Ligue Contre le Cancer, Marseille, France
| | - Nicolas Boissel
- Université Paris Diderot, Institut Universitaire d'Hématologie, Assistance Publique-Hôpitaux de Paris, University Hospital Saint-Louis, Paris, France
| | - Guillaume P Andrieu
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, France
| | - Vahid Asnafi
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, France
- Hôpital Necker Enfants-Malades, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Philippe Rousselot
- Department of Hematology and Oncology, Université de Versailles Saint-Quentin-en-Yvelines, Centre Hospitalier de Versailles, Le Chesnay, France
| | - Ludovic Lhermitte
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, France
- Hôpital Necker Enfants-Malades, Laboratory of Onco-Hematology, Assistance Publique-Hôpitaux de Paris, Paris, France
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Fu D, Yan J, Zhang Z, Liu Y, Ma X, Ding J, Yang S, Zhao R, Chang A, Gao C, Liu J, Zhao T, Wang X, Huang C, Gao S, Ma Y, Tang B, Feng Y, Wang H, Hao J. Nuclear PLD1 combined with NPM1 induces gemcitabine resistance through tumorigenic IL7R in pancreatic adenocarcinoma. Cancer Biol Med 2023; 20:j.issn.2095-3941.2023.0039. [PMID: 37381714 PMCID: PMC10476466 DOI: 10.20892/j.issn.2095-3941.2023.0039] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 05/05/2023] [Indexed: 06/30/2023] Open
Abstract
OBJECTIVE Pancreatic ductal adenocarcinoma (PDAC) is a highly malignant gastrointestinal cancer with a 5-year survival rate of only 9%. Of PDAC patients, 15%-20% are eligible for radical surgery. Gemcitabine is an important chemotherapeutic agent for patients with PDAC; however, the efficacy of gemcitabine is limited due to resistance. Therefore, reducing gemcitabine resistance is essential for improving survival of patients with PDAC. Identifying the key target that determines gemcitabine resistance in PDAC and reversing gemcitabine resistance using target inhibitors in combination with gemcitabine are crucial steps in the quest to improve survival prognosis in patients with PDAC. METHODS We constructed a human genome-wide CRISPRa/dCas 9 overexpression library in PDAC cell lines to screen key targets of drug resistance based on sgRNA abundance and enrichment. Then, co-IP, ChIP, ChIP-seq, transcriptome sequencing, and qPCR were used to determine the specific mechanism by which phospholipase D1 (PLD1) confers resistance to gemcitabine. RESULTS PLD1 combines with nucleophosmin 1 (NPM1) and triggers NPM1 nuclear translocation, where NPM1 acts as a transcription factor to upregulate interleukin 7 receptor (IL7R) expression. Upon interleukin 7 (IL-7) binding, IL7R activates the JAK1/STAT5 signaling pathway to increase the expression of the anti-apoptotic protein, BCL-2, and induce gemcitabine resistance. The PLD1 inhibitor, Vu0155069, targets PLD1 to induce apoptosis in gemcitabine-resistant PDAC cells. CONCLUSIONS PLD1 is an enzyme that has a critical role in PDAC-associated gemcitabine resistance through a non-enzymatic interaction with NPM1, further promoting the downstream JAK1/STAT5/Bcl-2 pathway. Inhibiting any of the participants of this pathway can increase gemcitabine sensitivity.
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Affiliation(s)
- Danqi Fu
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Jingrui Yan
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Zhaoyu Zhang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Yang Liu
- Department of General Surgery, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai 200003, China
| | - Xiaoqing Ma
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Jinsheng Ding
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Shengyu Yang
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania 17033, USA
| | - Ran Zhao
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Antao Chang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Chuntao Gao
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Jing Liu
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Tiansuo Zhao
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Xiuchao Wang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Chongbiao Huang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Song Gao
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Ying Ma
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Bo Tang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Yukuan Feng
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Hongwei Wang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Jihui Hao
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
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Wang Y, Cao Z, Zhao H, Gu Z. Nonylphenol exacerbates ovalbumin-induced allergic rhinitis via the TSLP-TSLPR/IL-7R pathway and JAK1/2-STAT3 signaling in a mouse model. Ecotoxicol Environ Saf 2022; 243:114005. [PMID: 36029577 DOI: 10.1016/j.ecoenv.2022.114005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 08/04/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
Nonylphenol (NP) can be widely used as a plasticizer, surfactant, antioxidant, textile printing, dyeing additive, and pesticide emulsifier. Animal studies have shown that NP aggravates ovalbumin (OVA)-induced allergic rhinitis (AR); however, the exact mechanism underlying its action has not yet been detailed. This study aimed to explore the aggravation of the AR inflammatory response following NP exposure and its possible mechanism. The AR mouse model was constructed using OVA. Under NP exposure, allergic nasal symptoms were observed, eosinophil infiltration was assessed by Sirius red staining, and the levels of IL-4, IL-5, and IL-13 in nasal mucosa samples were detected using cytometric bead array. The mRNA levels of OX40/OX40L and GATA3 in nasal mucosa were detected by qPCR, and the expression levels of the TSLP and JAK1/2-STAT3 signaling pathway components were also identified. Our results suggest that NP exposure exacerbated allergic nasal symptoms and that eosinophils accumulated in nasal mucosa after OVA challenge. The levels of the typical T helper 2 cytokines, as well as the mRNA levels of OX40/OX40L and GATA3, were elevated in the nasal mucosa of OVA-challenged mice exposed to NP. In addition, NP exposure elevated the TSLP, TSLPR, IL-7R, p-JAK1, p-JAK2, and p-STAT3 levels in the nasal mucosa after OVA stimulation. Overall, the present study suggests NP can exacerbate OVA-induced AR inflammatory responses; furthermore, this aggravating effect of NP may be related to the TSLP-TSLPR/IL-7R and JAK1/2-STAT3 signaling pathways.
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Affiliation(s)
- Yunxiu Wang
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang City 110004, Liaoning Province, PR China
| | - Zhiwei Cao
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang City 110004, Liaoning Province, PR China
| | - He Zhao
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang City 110004, Liaoning Province, PR China
| | - Zhaowei Gu
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang City 110004, Liaoning Province, PR China.
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7
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Wang C, Kong L, Kim S, Lee S, Oh S, Jo S, Jang I, Kim TD. The Role of IL-7 and IL-7R in Cancer Pathophysiology and Immunotherapy. Int J Mol Sci 2022; 23:ijms231810412. [PMID: 36142322 PMCID: PMC9499417 DOI: 10.3390/ijms231810412] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [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: 08/08/2022] [Revised: 09/06/2022] [Accepted: 09/06/2022] [Indexed: 12/03/2022] Open
Abstract
Interleukin-7 (IL-7) is a multipotent cytokine that maintains the homeostasis of the immune system. IL-7 plays a vital role in T-cell development, proliferation, and differentiation, as well as in B cell maturation through the activation of the IL-7 receptor (IL-7R). IL-7 is closely associated with tumor development and has been used in cancer clinical research and therapy. In this review, we first summarize the roles of IL-7 and IL-7Rα and their downstream signaling pathways in immunity and cancer. Furthermore, we summarize and discuss the recent advances in the use of IL-7 and IL-7Rα as cancer immunotherapy tools and highlight their potential for therapeutic applications. This review will help in the development of cancer immunotherapy regimens based on IL-7 and IL-7Rα, and will also advance their exploitation as more effective and safe immunotherapy tools.
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Affiliation(s)
- Chunli Wang
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
| | - Lingzu Kong
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
- Department of Biochemistry, College of Natural Sciences, Chungnam National University, Daejeon 34134, Korea
| | - Seokmin Kim
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Sunyoung Lee
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
- Department of Life Sciences, Korea University, Seoul 02841, Korea
| | - Sechan Oh
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Seona Jo
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Inhwan Jang
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
| | - Tae-Don Kim
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon 34113, Korea
- Correspondence:
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8
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Oliveira ML, Veloso A, Garcia EG, Iyer S, Pereira C, Barreto VM, Langenau DM, Barata JT. Mutant IL7R collaborates with MYC to induce T-cell acute lymphoblastic leukemia. Leukemia 2022; 36:1533-1540. [PMID: 35581375 PMCID: PMC9162918 DOI: 10.1038/s41375-022-01590-5] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 11/09/2022]
Abstract
T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive pediatric cancer. Amongst the wide array of driver mutations, 10% of T-ALL patients display gain-of-function mutations in the IL-7 receptor α chain (IL-7Rα, encoded by IL7R), which occur in different molecular subtypes of this disease. However, it is still unclear whether IL-7R mutational activation is sufficient to transform T-cell precursors. Also, which genes cooperate with IL7R to drive leukemogenesis remain poorly defined. Here, we demonstrate that mutant IL7R alone is capable of inducing T-ALL with long-latency in stable transgenic zebrafish and transformation is associated with MYC transcriptional activation. Additionally, we find that mutant IL7R collaborates with Myc to induce early onset T-ALL in transgenic zebrafish, supporting a model where these pathways collaborate to drive leukemogenesis. T-ALLs co-expressing mutant IL7R and Myc activate STAT5 and AKT pathways, harbor reduced numbers of apoptotic cells and remake tumors in transplanted zebrafish faster than T-ALLs expressing Myc alone. Moreover, limiting-dilution cell transplantation experiments reveal that activated IL-7R signaling increases the overall frequency of leukemia propagating cells. Our work highlights a synergy between mutant IL7R and Myc in inducing T-ALL and demonstrates that mutant IL7R enriches for leukemia propagating potential.
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Affiliation(s)
- Mariana L Oliveira
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Alexandra Veloso
- Molecular Pathology Unit, MGH Research Institute, Charlestown, MA, 02129, USA
- MGH Cancer Center, Harvard Medical School, Charlestown, MA, 02129, USA
- Center for Regenerative Medicine, MGH, Boston, MA, 02114, USA
- Harvard Stem Cell Institute, Cambridge, MA, 02139, USA
| | - Elaine G Garcia
- Molecular Pathology Unit, MGH Research Institute, Charlestown, MA, 02129, USA
- MGH Cancer Center, Harvard Medical School, Charlestown, MA, 02129, USA
- Center for Regenerative Medicine, MGH, Boston, MA, 02114, USA
- Harvard Stem Cell Institute, Cambridge, MA, 02139, USA
| | - Sowmya Iyer
- Molecular Pathology Unit, MGH Research Institute, Charlestown, MA, 02129, USA
- MGH Cancer Center, Harvard Medical School, Charlestown, MA, 02129, USA
- Center for Regenerative Medicine, MGH, Boston, MA, 02114, USA
- Harvard Stem Cell Institute, Cambridge, MA, 02139, USA
| | - Clara Pereira
- Smurfit Institute of Genetics, Trinity College Dublin, University of Dublin, Dublin 2, Ireland
| | - Vasco M Barreto
- DNA Breaks Laboratory, CEDOC - Chronic Diseases Research Center, NOVA Medical School - Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - David M Langenau
- Molecular Pathology Unit, MGH Research Institute, Charlestown, MA, 02129, USA.
- MGH Cancer Center, Harvard Medical School, Charlestown, MA, 02129, USA.
- Center for Regenerative Medicine, MGH, Boston, MA, 02114, USA.
- Harvard Stem Cell Institute, Cambridge, MA, 02139, USA.
| | - João T Barata
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.
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9
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Thomas KR, Allenspach EJ, Camp ND, Wray-Dutra MN, Khim S, Zielinska-Kwiatkowska A, Timms AE, Loftus JP, Liggitt HD, Georgopoulos K, Tasian SK, James RG, Rawlings DJ. Activated interleukin-7 receptor signaling drives B-cell acute lymphoblastic leukemia in mice. Leukemia 2022; 36:42-57. [PMID: 34193976 PMCID: PMC8716641 DOI: 10.1038/s41375-021-01326-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [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: 01/21/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 02/06/2023]
Abstract
Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a high-risk subtype of B-ALL often associated with genetic variants that alter cytokine receptor signaling, including mutations in the interleukin-7 receptor (IL7R). To investigate whether IL7R variants are leukemia-initiating, we built mouse models expressing activated Il7r (aIL7R). B-cell intrinsic aIL7R mice developed spontaneous B-ALL, demonstrating sufficiency of Il7r activating mutations in leukemogenesis. Concomitant introduction of a knock-out allele in the associated adapter protein Lnk (encoded by Sh2b3) or a dominant-negative variant of the transcription factor Ikaros (Ikzf1) increased disease penetrance. The resulting murine leukemias displayed monoclonality and recurrent somatic Kras mutations and efficiently engrafted into immunocompetent mice. Phosphoproteomic analyses of aIL7R leukemic cells revealed constitutive Stat5 signaling and B cell receptor (BCR)-like signaling despite the absence of surface pre-BCR. Finally, in vitro treatment of aIL7R leukemic B-cells with Jak, mTOR, or Syk inhibitors blocked growth, confirming that each pathway is active in this mouse model of IL7R-driven B-ALL.
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Affiliation(s)
- Kerri R Thomas
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
- Department of Immunology, University of Washington School of Medicine, Seattle, WA, USA
| | - Eric J Allenspach
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA
- Brotman-Baty Institute for Precision Medicine, Seattle, WA, USA
| | - Nathan D Camp
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
| | - Michelle N Wray-Dutra
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
| | - Socheath Khim
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
| | | | - Andrew E Timms
- Center for Developmental Biology and Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA, USA
| | - Joseph P Loftus
- Division of Oncology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - H Denny Liggitt
- Department of Comparative Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | - Katia Georgopoulos
- Cutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Sarah K Tasian
- Division of Oncology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Richard G James
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA.
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA.
- Brotman-Baty Institute for Precision Medicine, Seattle, WA, USA.
- Department of Pharmacology, University of Washington School of Medicine, Seattle, WA, USA.
| | - David J Rawlings
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA.
- Department of Immunology, University of Washington School of Medicine, Seattle, WA, USA.
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA.
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10
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Lee JY, Lee K, Koh B. Identification of new IL-7Rα small-molecule agonists: a multi-computational approach. SAR QSAR Environ Res 2021; 32:719-729. [PMID: 34431428 DOI: 10.1080/1062936x.2021.1969684] [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] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
Interleukin 7 (IL-7) is an essential cytokine that acts as a potent growth factor of T-cells and supports the growth of B-cell precursors. IL-7 binds to a heterodimeric receptor consisting of an IL-7 receptor alpha (IL-7Rα) and the common gamma chain receptor (γc) which is shared with IL-2, IL-4, IL-9, IL-15 and IL-21. The discovery of small-molecule agonists of cytokines would be of great pharmaceutical interest with the increasing scientific rationale. In this study, a series of molecular modelling methods, including field-based pharmacophore virtual screening, protein-protein docking and molecular dynamics simulations, led to the identification of two compounds (i.e. 1 and 2) of different classes that exhibit enhanced agonistic effects by activating the IL-7 signalling cascade. One of these compounds was selected as a hit and represents the first small-molecule agonist of IL-7Rα with single-digit micromolar activity. Moreover, the prediction model of the active compound to the IL-7Rα/γc interaction complex provides insight into the binding of a small-molecule agonist to its receptor.
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Affiliation(s)
- J-Y Lee
- Therapeutics & Biotechnology Division, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - K Lee
- Therapeutics & Biotechnology Division, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - B Koh
- Therapeutics & Biotechnology Division, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
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11
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Baizan-Edge A, Stubbs BA, Stubbington MJT, Bolland DJ, Tabbada K, Andrews S, Corcoran AE. IL-7R signaling activates widespread V H and D H gene usage to drive antibody diversity in bone marrow B cells. Cell Rep 2021; 36:109349. [PMID: 34260907 PMCID: PMC8293627 DOI: 10.1016/j.celrep.2021.109349] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 04/05/2021] [Accepted: 06/15/2021] [Indexed: 01/09/2023] Open
Abstract
Generation of the primary antibody repertoire requires V(D)J recombination of hundreds of gene segments in the immunoglobulin heavy chain (Igh) locus. The role of interleukin-7 receptor (IL-7R) signaling in Igh recombination has been difficult to partition from its role in B cell survival and proliferation. With a detailed description of the Igh repertoire in murine IL-7Rα-/- bone marrow B cells, we demonstrate that IL-7R signaling profoundly influences VH gene selection during VH-to-DJH recombination. We find skewing toward 3' VH genes during de novo VH-to-DJH recombination more severe than the fetal liver (FL) repertoire and uncover a role for IL-7R signaling in DH-to-JH recombination. Transcriptome and accessibility analyses suggest reduced expression of B lineage transcription factors (TFs) and targets and loss of DH and VH antisense transcription in IL-7Rα-/- B cells. Thus, in addition to its roles in survival and proliferation, IL-7R signaling shapes the Igh repertoire by activating underpinning mechanisms.
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Affiliation(s)
- Amanda Baizan-Edge
- Nuclear Dynamics Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Bryony A Stubbs
- Nuclear Dynamics Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Michael J T Stubbington
- Nuclear Dynamics Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Daniel J Bolland
- Nuclear Dynamics Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK; Lymphocyte Signaling and Development Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Kristina Tabbada
- Nuclear Dynamics Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK; Lymphocyte Signaling and Development Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Simon Andrews
- Bioinformatics Group, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK
| | - Anne E Corcoran
- Nuclear Dynamics Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK; Lymphocyte Signaling and Development Programme, Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, UK.
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12
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Kim SJ, Chang HJ, Volin MV, Umar S, Van Raemdonck K, Chevalier A, Palasiewicz K, Christman JW, Volkov S, Arami S, Maz M, Mehta A, Zomorrodi RK, Fox DA, Sweiss N, Shahrara S. Macrophages are the primary effector cells in IL-7-induced arthritis. Cell Mol Immunol 2020; 17:728-740. [PMID: 31197255 PMCID: PMC7331600 DOI: 10.1038/s41423-019-0235-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [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: 11/12/2018] [Accepted: 04/10/2019] [Indexed: 12/16/2022] Open
Abstract
Synovial macrophages are crucial in the development of joint inflammation and bone damage; however, the pathways that control macrophage remodeling in inflammatory M1 cells or bone-eroding osteoclasts are not fully understood. We determined that elevated IL-7R/CD127 expression is the hallmark of rheumatoid arthritis (RA) M1 macrophages and that these cells are highly responsive to interleukin-7 (IL-7)-driven osteoclastogenesis. We established that lipopolysaccharide (LPS), interferon-γ (IFNγ), and tumor necrosis factor-α (TNFα), the classic M1 macrophage mediators, enhance IL-7R expression in RA and murine macrophages. The local expression of IL-7 provokes arthritis, predominantly through escalating the number of F480+iNOS+ cells rather than CD3+ T cells. Ectopic LPS injection stabilizes IL-7-induced arthritis by increasing myeloid IL-7R expression, in part via IFNγ induction. Hence, in RAG-/- mice, IL-7-mediated arthritis is suppressed because of the reduction in myeloid IL-7R expression due to the lack of IFNγ. Moreover, the amelioration of IL-7-induced arthritis by anti-TNF therapy is due to a decrease in the number of cells in the unique F480+iNOS+IL-7R+CCL5+ subset, with no impact on the F480+Arginase+ cell or CD3+ T cell frequency. Consistent with the preclinical findings, the findings of a phase 4 study performed with RA patients following 6 months of anti-TNF therapy revealed that IL-7R expression was reduced without affecting the levels of IL-7. This study shifts the paradigm by discovering that IL-7-induced arthritis is dependent on F480+iNOS+IL-7R+CCL5+ cell function, which activates TH-1 cells to amplify myeloid IL-7R expression and disease severity.
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Affiliation(s)
- Seung-Jae Kim
- Division of Rheumatology, Jesse Brown VA, Medical Center, Chicago, IL, 60612, USA
- Department of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Huan J Chang
- Division of Rheumatology, Jesse Brown VA, Medical Center, Chicago, IL, 60612, USA
- Department of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Michael V Volin
- Department of Microbiology and Immunology, Chicago College of Osteopathic Medicine, Midwestern University, Downers Grove, IL, 60515, USA
| | - Sadiq Umar
- Division of Rheumatology, Jesse Brown VA, Medical Center, Chicago, IL, 60612, USA
- Department of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Katrien Van Raemdonck
- Division of Rheumatology, Jesse Brown VA, Medical Center, Chicago, IL, 60612, USA
- Department of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Aimee Chevalier
- Department of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Karol Palasiewicz
- Division of Rheumatology, Jesse Brown VA, Medical Center, Chicago, IL, 60612, USA
- Department of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - John W Christman
- Pulmonary, Critical Care and Sleep Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210, USA
| | - Suncica Volkov
- Department of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Shiva Arami
- Division of Rheumatology, Jesse Brown VA, Medical Center, Chicago, IL, 60612, USA
- Department of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Mehrdad Maz
- Division of Allergy, Clinical Immunology and Rheumatology, The University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - Anjali Mehta
- Division of Rheumatology, Jesse Brown VA, Medical Center, Chicago, IL, 60612, USA
- Department of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Ryan K Zomorrodi
- Department of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - David A Fox
- Division of Rheumatology and Clinical Autoimmunity Center of Excellence, University of Michigan, Ann Arbor, MI, 481096, USA
| | - Nadera Sweiss
- Department of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Shiva Shahrara
- Division of Rheumatology, Jesse Brown VA, Medical Center, Chicago, IL, 60612, USA.
- Department of Medicine, Division of Rheumatology, University of Illinois at Chicago, Chicago, IL, 60612, USA.
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13
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Côté SC, Burke Schinkel SC, Berthoud TK, Barros PO, Sanchez‐Vidales M, Davidson AM, Crawley AM, Angel JB. IL-7 induces sCD127 release and mCD127 downregulation in human CD8 + T cells by distinct yet overlapping mechanisms, both of which are impaired in HIV infection. Eur J Immunol 2020; 50:1537-1549. [PMID: 32390135 PMCID: PMC7586945 DOI: 10.1002/eji.201948453] [Citation(s) in RCA: 2] [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: 10/26/2019] [Revised: 03/30/2020] [Accepted: 05/06/2020] [Indexed: 01/13/2023]
Abstract
The IL‐7 receptor specific α chain, CD127, can be expressed both as a membrane‐associated (mCD127) and a soluble form (sCD127), however, the mechanisms involved in their regulation remain to be defined. We first demonstrated in primary human CD8+ T cells that IL‐7‐induced downregulation of mCD127 expression is dependent on JAK and PI3K signaling, whereas IL‐7‐induced sCD127 release is also mediated by STAT5. Following stimulation with IL‐7, expression of alternatively spliced variants of the CD127 gene, sCD127 mRNA, is reduced, but to a lesser degree than the full‐length gene. Evaluation of the role of proteases revealed that MMP‐9 was involved in sCD127 release, without affecting the expression of mCD127, suggesting it does not induce direct shedding from the cell surface. Since defects in the IL‐7/CD127 pathway occur in various diseases, including HIV, we evaluated CD8+ T cells derived from HAART‐treated HIV‐infected individuals and found that IL‐7‐induced (1) downregulation of mCD127, (2) release of sCD127, and (3) expression of the sCD127 mRNA were all impaired. Expression of mCD127 and sCD127 is, therefore, regulated by distinct, but overlapping, mechanisms and their impairment in HIV infection contributes to our understanding of the CD8+ T cell dysfunction that persists despite effective antiretroviral therapy.
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Affiliation(s)
| | | | - Tamara K. Berthoud
- The Ottawa Hospital Research InstituteOttawaONCanada
- Department of BiochemistryMicrobiology, and ImmunologyThe University of OttawaOttawaONCanada
| | - Priscila O. Barros
- The Ottawa Hospital Research InstituteOttawaONCanada
- Department of BiochemistryMicrobiology, and ImmunologyThe University of OttawaOttawaONCanada
| | - Maria Sanchez‐Vidales
- The Ottawa Hospital Research InstituteOttawaONCanada
- Department of BiochemistryMicrobiology, and ImmunologyThe University of OttawaOttawaONCanada
| | - April M. Davidson
- The Ottawa Hospital Research InstituteOttawaONCanada
- Department of BiochemistryMicrobiology, and ImmunologyThe University of OttawaOttawaONCanada
| | - Angela M. Crawley
- The Ottawa Hospital Research InstituteOttawaONCanada
- Department of BiochemistryMicrobiology, and ImmunologyThe University of OttawaOttawaONCanada
- Department of BiologyCarleton UniversityOttawaONCanada
| | - Jonathan B. Angel
- The Ottawa Hospital Research InstituteOttawaONCanada
- Department of BiochemistryMicrobiology, and ImmunologyThe University of OttawaOttawaONCanada
- Division of Infectious DiseasesThe Ottawa HospitalOttawaONCanada
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14
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Schneider C, Lee J, Koga S, Ricardo-Gonzalez RR, Nussbaum JC, Smith LK, Villeda SA, Liang HE, Locksley RM. Tissue-Resident Group 2 Innate Lymphoid Cells Differentiate by Layered Ontogeny and In Situ Perinatal Priming. Immunity 2019; 50:1425-1438.e5. [PMID: 31128962 PMCID: PMC6645687 DOI: 10.1016/j.immuni.2019.04.019] [Citation(s) in RCA: 158] [Impact Index Per Article: 31.6] [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: 10/25/2018] [Revised: 02/18/2019] [Accepted: 04/28/2019] [Indexed: 01/21/2023]
Abstract
The perinatal period is a critical window for distribution of innate tissue-resident immune cells within developing organs. Despite epidemiologic evidence implicating the early-life environment in the risk for allergy, temporally controlled lineage tracing of group 2 innate lymphoid cells (ILC2s) during this period remains unstudied. Using complementary fate-mapping approaches and reporters for ILC2 activation, we show that ILC2s appeared in multiple organs during late gestation like tissue macrophages, but, unlike the latter, a majority of peripheral ILC2 pools were generated de novo during the postnatal window. This period was accompanied by systemic ILC2 priming and acquisition of tissue-specific transcriptomes. Although perinatal ILC2s were variably replaced across tissues with age, the dramatic increases in tissue ILC2s following helminth infection were mediated through local expansion independent of de novo generation by bone marrow hematopoiesis. We provide comprehensive temporally controlled fate mapping of an innate lymphocyte subset with notable nuances as compared to tissue macrophage ontogeny.
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Affiliation(s)
- Christoph Schneider
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Jinwoo Lee
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Satoshi Koga
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | | | - Jesse C Nussbaum
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Lucas K Smith
- Department of Anatomy, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Saul A Villeda
- Department of Anatomy, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Hong-Erh Liang
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Richard M Locksley
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Howard Hughes Medical Institute, University of California, San Francisco, San Francisco, CA, USA.
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15
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Natale MA, César GA, Alvarez MG, Castro Eiro MD, Lococo B, Bertocchi G, Albareda MC, Laucella SA. Trypanosoma cruzi-specific IFN-γ-producing cells in chronic Chagas disease associate with a functional IL-7/IL-7R axis. PLoS Negl Trop Dis 2018; 12:e0006998. [PMID: 30517089 PMCID: PMC6281225 DOI: 10.1371/journal.pntd.0006998] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 07/17/2018] [Accepted: 11/14/2018] [Indexed: 11/19/2022] Open
Abstract
Background The severity of cardiac disease in chronic Chagas disease patients is associated with different features of T-cell exhaustion. Here, we assessed whether the ability of T cells to secrete IFN-γ in response to T. cruzi was linked to disruption in immune homeostasis and inflammation in patients with chronic Chagas disease. Methodology/Principal findings PBMCs from chronic Chagas disease patients and uninfected controls were examined for frequencies of T. cruzi-responsive IFN-γ-producing cells by ELISPOT and cellular expression and function of IL-7R using flow cytometry. Serum levels of IL-7, IL-21, IL-27, soluble IL-7R, and inflammatory cytokines were also evaluated by ELISA or CBA techniques. Patients possessing T. cruzi-specific IFN-γ-producing cells (i.e. IFN-γ producers) had higher levels of memory T cells capable of modulating the alpha chain of IL-7R and an efficient response to IL-7 compared to that in patients lacking (i.e. IFN-γ nonproducers) parasite-specific T-cell responses. IFN-γ producers also showed low levels of soluble IL-7R, high basal expression of Bcl-2 in T cells and low basal frequencies of activated CD25+ T cells. Modulation of IL-7R was inversely associated with serum IL-6 levels and positively associated with serum IL-8 levels. Circulating IL-21 and IL-27 levels were not associated with the frequency of IFN-γ producing cells but were reduced in less severe clinical forms of the disease. In vitro stimulation of PBMCs with IL-7 or IL-27 enhanced IFN-γ production in IFN-γ producers but not in IFN-γ nonproducers. Conclusions/Significance Alterations of the IL-7/IL-7R axis and in the levels of inflammatory cytokines were linked to impaired T. cruzi-specific IFN-γ production. These alterations might be responsible of the process of immune exhaustion observed in chronic Chagas disease. Mechanisms of acquired immune response against Trypanosoma cruzi antigens include both humoral and cellular components that might be critical in a chronic infection. Through a vast number of studies, several groups have postulated that, similar to other chronic infections, T-cell responses in chronic Trypanosoma cruzi infection are driven to exhaustion. Alterations in T-cell signaling pathways have emerged as one of the mechanisms of immune exhaustion. Here, we investigated whether the ability of T cells to secrete IFN-γ in response to T. cruzi was linked to the expression and function of the IL-7 receptor and the cytokines involved in regulating this axis in patients with different clinical forms of chronic Chagas disease. This study showed that the ability of T cells to secrete IFN-γ in response to T. cruzi is linked to an efficient modulation and function of IL-7R and low levels of inflammatory cytokines. Low IFN-γ-ELISPOT responses could not be reverted by in vitro treatment with IL-7. These findings contribute to our understanding of the long-term consequences of T. cruzi-infection and might be useful to delineate novel therapeutic strategies.
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Affiliation(s)
- María A. Natale
- Instituto Nacional de Parasitología Dr. Fatala Chaben, Buenos Aires, Argentina
| | - Gonzalo A. César
- Instituto Nacional de Parasitología Dr. Fatala Chaben, Buenos Aires, Argentina
| | - María G. Alvarez
- Hospital Interzonal General de Agudos Eva Perón, Buenos Aires, Argentina
| | | | - Bruno Lococo
- Hospital Interzonal General de Agudos Eva Perón, Buenos Aires, Argentina
| | - Graciela Bertocchi
- Hospital Interzonal General de Agudos Eva Perón, Buenos Aires, Argentina
| | - María C. Albareda
- Instituto Nacional de Parasitología Dr. Fatala Chaben, Buenos Aires, Argentina
| | - Susana A. Laucella
- Instituto Nacional de Parasitología Dr. Fatala Chaben, Buenos Aires, Argentina
- Hospital Interzonal General de Agudos Eva Perón, Buenos Aires, Argentina
- * E-mail:
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16
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Rodrigues PF, Alberti-Servera L, Eremin A, Grajales-Reyes GE, Ivanek R, Tussiwand R. Distinct progenitor lineages contribute to the heterogeneity of plasmacytoid dendritic cells. Nat Immunol 2018; 19:711-722. [PMID: 29925996 PMCID: PMC7614340 DOI: 10.1038/s41590-018-0136-9] [Citation(s) in RCA: 188] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 05/15/2018] [Indexed: 12/31/2022]
Abstract
Plasmacytoid dendritic cells (pDCs) are an immune subset devoted to the production of high amounts of type 1 interferons in response to viral infections. Whereas conventional dendritic cells (cDCs) originate mostly from a common dendritic cell progenitor (CDP), pDCs have been shown to develop from both CDPs and common lymphoid progenitors. Here, we found that pDCs developed predominantly from IL-7R+ lymphoid progenitor cells. Expression of SiglecH and Ly6D defined pDC lineage commitment along the lymphoid branch. Transcriptional characterization of SiglecH+Ly6D+ precursors indicated that pDC development requires high expression of the transcription factor IRF8, whereas pDC identity relies on TCF4. RNA sequencing of IL-7R+ lymphoid and CDP-derived pDCs mirrored the heterogeneity of mature pDCs observed in single-cell analysis. Both mature pDC subsets are able to secrete type 1 interferons, but only myeloid-derived pDCs share with cDCs their ability to process and present antigen.
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Affiliation(s)
| | - Llucia Alberti-Servera
- Department of Biomedicine, University of Basel, Basel, Switzerland
- Department of Human Genetics and VIB Center for the Biology of Disease, Leuven, Belgium
| | - Anna Eremin
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Gary E Grajales-Reyes
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Robert Ivanek
- Department of Biomedicine, University of Basel, Basel, Switzerland
- Swiss Institute of Bioinformatics, Basel, Switzerland
| | - Roxane Tussiwand
- Department of Biomedicine, University of Basel, Basel, Switzerland.
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17
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Thampy LK, Remy KE, Walton AH, Hong Z, Liu K, Liu R, Yi V, Burnham CAD, Hotchkiss RS. Restoration of T Cell function in multi-drug resistant bacterial sepsis after interleukin-7, anti-PD-L1, and OX-40 administration. PLoS One 2018; 13:e0199497. [PMID: 29944697 PMCID: PMC6019671 DOI: 10.1371/journal.pone.0199497] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [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: 04/18/2018] [Accepted: 06/10/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Multidrug resistant (MDR) bacterial pathogens are a serious problem of increasing importance facing the medical community. MDR bacteria typically infect the most immunologically vulnerable: patients in intensive care units, patients with extensive comorbidities, oncology patients, hemodialysis patients, and other immune suppressed individuals are likely to fall victim to these pathogens. One promising novel approach to treatment of MDR bacteria is immuno-adjuvant therapy to boost patient immunity. Success with this strategy would have the major benefit of providing protection against a number of MDR pathogens. OBJECTIVES This study had two main objectives. First, immunophenotyping of peripheral blood mononuclear cells from patients with sepsis associated with MDR bacteria was performed to examine for findings indicative of immunosuppression. Second, the ability of three immuno-adjuvants with distinct mechanisms of action to reverse CD4 and CD8 T cell dysfunction, a pathophysiological hallmark of sepsis, was evaluated. RESULTS Septic patients with MDR bacteria had increased expression of the inhibitory receptor PD-1 and its ligand PD-L1 and decreased monocyte HLA-DR expression compared to non-septic patients. All three immuno-adjuvants, IL-7, anti-PD-L1, and OX-40L, increased T cell production of IFN-γ in a subset of septic patients with MDR bacteria: IL-7 was most efficacious. There was a strong trend toward increased mortality in patients whose T cells failed to increase IFN-γ production in response to the three treatments. CONCLUSION Immuno-adjuvant therapy reversed T cell dysfunction, a key pathophysiological mechanism in septic patients with MDR bacteria.
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Affiliation(s)
- Lukose K. Thampy
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Kenneth E. Remy
- Department of Pediatrics-Division of Critical Care Medicine, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Andrew H. Walton
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Zachery Hong
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Kelilah Liu
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Rebecca Liu
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Victoria Yi
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Carey-Ann D. Burnham
- Department of Immunology and Pathology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Richard S. Hotchkiss
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri, United States of America
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, United States of America
- Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, United States of America
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18
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Xu H, Bendersky VA, Brennan TV, Espinosa JR, Kirk AD. IL-7 receptor heterogeneity as a mechanism for repertoire change during postdepletional homeostatic proliferation and its relation to costimulation blockade-resistant rejection. Am J Transplant 2018; 18:720-730. [PMID: 29136317 PMCID: PMC6035390 DOI: 10.1111/ajt.14589] [Citation(s) in RCA: 6] [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: 06/09/2017] [Revised: 10/08/2017] [Accepted: 11/04/2017] [Indexed: 01/25/2023]
Abstract
Kidney transplant patients treated with belatacept without depletional induction experience higher rates of acute rejection compared to patients treated with conventional immunosuppression. Costimulation blockade-resistant rejection (CoBRR) is associated with terminally differentiated T cells. Alemtuzumab induction and belatacept/sirolimus immunotherapy effectively prevent CoBRR. We hypothesized that cells in late phases of differentiation would be selectively less capable than more naive phenotypes of repopulating postdepletion, providing a potential mechanism by which lymphocyte depletion and repopulation could reduce the risk of CoBRR. Lymphocytes from 20 recipients undergoing alemtuzumab-induced depletion and belatacept/sirolimus immunosuppression were studied longitudinally for markers of maturation (CCR7, CD45RA, CD57, PD1), recent thymic emigration (CD31), and the IL-7 receptor-α (IL-7Rα). Serum was analyzed for IL-7. Alemtuzumab induction produced profound lymphopenia followed by repopulation, during which naive IL-7Rα+ CD57- PD1- cells progressively became the predominant subset. This did not occur in a comparator group of 10 patients treated with conventional immunosuppression. Serum from depleted patients showed markedly elevated IL-7 levels posttransplantation. Sorted CD57- PD1- cells demonstrated robust proliferation in response to IL-7, whereas more differentiated cells proliferated poorly. These data suggest that differences in IL-7-dependent proliferation is one exploitable mechanism that distinguishes CoB-sensitive and CoB-resistant T cell populations to reduce the risk of CoBRR. (ClinicalTrials.gov - NCT00565773.).
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Affiliation(s)
- He Xu
- Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | | | - Todd V Brennan
- Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - Jaclyn R Espinosa
- Department of Surgery, Duke University Medical Center, Durham, NC, USA
| | - Allan D Kirk
- Department of Surgery, Duke University Medical Center, Durham, NC, USA
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19
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Zeng H, Yu M, Tan H, Li Y, Su W, Shi H, Dhungana Y, Guy C, Neale G, Cloer C, Peng J, Wang D, Chi H. Discrete roles and bifurcation of PTEN signaling and mTORC1-mediated anabolic metabolism underlie IL-7-driven B lymphopoiesis. Sci Adv 2018; 4:eaar5701. [PMID: 29399633 PMCID: PMC5792226 DOI: 10.1126/sciadv.aar5701] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 01/04/2018] [Indexed: 05/21/2023]
Abstract
Interleukin-7 (IL-7) drives early B lymphopoiesis, but the underlying molecular circuits remain poorly understood, especially how Stat5 (signal transducer and activator of transcription 5)-dependent and Stat5-independent pathways contribute to this process. Combining transcriptome and proteome analyses and mouse genetic models, we show that IL-7 promotes anabolic metabolism and biosynthetic programs in pro-B cells. IL-7-mediated activation of mTORC1 (mechanistic target of rapamycin complex 1) supported cell proliferation and metabolism in a Stat5-independent, Myc-dependent manner but was largely dispensable for cell survival or Rag1 and Rag2 gene expression. mTORC1 was also required for Myc-driven lymphomagenesis. PI3K (phosphatidylinositol 3-kinase) and mTORC1 had discrete effects on Stat5 signaling and independently controlled B cell development. PI3K was actively suppressed by PTEN (phosphatase and tensin homolog) in pro-B cells to ensure proper IL-7R expression, Stat5 activation, heavy chain rearrangement, and cell survival, suggesting the unexpected bifurcation of the classical PI3K-mTOR signaling. Together, our integrative analyses establish IL-7R-mTORC1-Myc and PTEN-mediated PI3K suppression as discrete signaling axes driving B cell development, with differential effects on IL-7R-Stat5 signaling.
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Affiliation(s)
- Hu Zeng
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Mei Yu
- Blood Research Institute, Blood Center of Wisconsin, Milwaukee, WI 53226, USA
| | - Haiyan Tan
- Departments of Structural Biology and Developmental Neurobiology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
- St. Jude Proteomics Facility, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Yuxin Li
- Departments of Structural Biology and Developmental Neurobiology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
- St. Jude Proteomics Facility, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Wei Su
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
- Integrated Biomedical Sciences Program, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Hao Shi
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Yogesh Dhungana
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Cliff Guy
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Geoffrey Neale
- Hartwell Center for Bioinformatics and Biotechnology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Caryn Cloer
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Junmin Peng
- Departments of Structural Biology and Developmental Neurobiology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
- St. Jude Proteomics Facility, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
- Corresponding author. (H.C.); (D.W.); (J.P.)
| | - Demin Wang
- Blood Research Institute, Blood Center of Wisconsin, Milwaukee, WI 53226, USA
- Corresponding author. (H.C.); (D.W.); (J.P.)
| | - Hongbo Chi
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
- Corresponding author. (H.C.); (D.W.); (J.P.)
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20
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Abstract
Cross-presentation of apoptotic cell associated antigens by immature dendritic cells prevents the activation of self reactive CD8 T cells. Tolerized self reactive CD8 T cells down-regulate IL-7R expression on their surface. Whether over-expression of IL-7R can reverse their fate and function has not been examined. In this paper, we showed forced expression of IL-7R in OT-I T cells by a transgene enhanced CD8 T cell mediated diabetes in the RIP-mOVA model. Although IL-7R Tg (transgenic) did not completely reverse the deletion of OT-I T cells, it provided a significant survival advantage over w.t OT-I T cells. Furthermore, IL7R Tg OT-I T cells isolated from diabetic pancreata displayed increased production of IFN-γ, higher expression of T-bet, and increased externalization of CD107a. We also found that immature DCs containing apoptotic cells expressed high levels of PDL-1 on their surface. Although IL-7R Tg did not change PD1 expression on activated OT-I cells in vivo, the transgene enabled a significantly lower number of OT-I T cells to induce diabetes in the absence of PDL-1. Our results demonstrated that forced expression of IL-7R not only improved the functionality of tolerized CD8 T cells, it also acted in synergy with PDL-1 deficiency to further promote CD8 T cell cytotoxicity to self antigens.
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Affiliation(s)
- YuFeng Peng
- Division of Rheumatology, Department of Medicine, University of Washington, Seattle, Washington, United States of America
- * E-mail:
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21
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Steele AK, Carrasco-Medina L, Sodora DL, Crawley AM. Increased soluble IL-7 receptor concentrations associate with improved IL-7 therapy outcomes in SIV-infected ART-treated Rhesus macaques. PLoS One 2017; 12:e0188427. [PMID: 29261677 PMCID: PMC5736176 DOI: 10.1371/journal.pone.0188427] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 07/31/2017] [Accepted: 11/07/2017] [Indexed: 12/26/2022] Open
Abstract
The use of interleukin-7 (IL-7) as an immunorestorative therapeutic has proven effective in HIV infection, cancer and bone marrow transplantation. Mediating its activity through membrane-bound IL-7 receptor α (mCD127), IL-7 therapy increases T-cell numbers and survival. A soluble form, sCD127, is found in plasma, and we have previously identified increased plasma sCD127 concentrations in HIV infection. Furthermore, patients with high sCD127 exhibited the best viral control, implicating a role for IL-7 or sCD127 directly in improved virologic/immunologic outcomes. The role of the cytokine IL-7 in elevating sCD127 levels was addressed here through assessment of retrospective samples obtained from SIV-infected antiretroviral (ART)-treated Rhesus macaques. IL-7 was administered in clustered weekly doses, allowing for an assessment prior, during and following IL-7 administration. The levels of sCD127 remained relatively unchanged during both early SIV infection and following initiation of ART. However, treatment with IL-7 increased sCD127 concentrations in most animals, transiently or persistently, paralleling increased T-cell numbers, correlating significantly with CD8+ T-cell levels. In addition, proliferating CD4+ or CD8+ T-cells (measured by Ki67) increased in association with elevated sCD127 concentrations. Finally, a high concentration of sCD127 in IL7-treated animals was associated with increased retention of T-cells (measured by BrDU). In addition, a lack, or loss of viral control was associated with more pronounced and frequent elevations in plasma sCD127 concentrations with IL-7 therapy. In summary, plasma sCD127 levels in SIV-infected ART-treated macaques was associated with therapeutic IL-7 administration, with higher sCD127 levels in macaques demonstrating the best T-cell responses. This study furthers our knowledge regarding the interrelationship between increased IL-7 levels and elevated sCD127 levels that may have implications for future IL-7 immunotherapeutic approaches in HIV-infected patients.
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Affiliation(s)
- Amanda K. Steele
- Center for Infectious Disease Research, Seattle, WA, United States of America
- Collegiate Peaks Science Writing, Denver, CO, United States of America
| | - Lorna Carrasco-Medina
- The Ottawa Hospital–General Campus, Division of Infectious Diseases, Ottawa, ON, Canada
| | - Donald L. Sodora
- Center for Infectious Disease Research, Seattle, WA, United States of America
| | - Angela M. Crawley
- The Ottawa Hospital Research Institute, Chronic Disease Program, Ottawa, ON, Canada
- University of Ottawa, Dept. Biochem., Microbiol., and Immunol., Ottawa, ON, Canada
- Carleton University, Dept. Biol., Ottawa, ON, Canada
- * E-mail:
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22
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Bina P, Pahlevan Kakhki M, Sahraian MA, Behmanesh M. The expression of lnc-IL-7R long non-coding RNA dramatically correlated with soluble and membrane-bound isoforms of IL-7Ra gene in multiple sclerosis patients. Neurosci Lett 2017; 642:174-178. [PMID: 28174058 DOI: 10.1016/j.neulet.2017.01.068] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 12/04/2016] [Revised: 01/13/2017] [Accepted: 01/28/2017] [Indexed: 11/18/2022]
Abstract
BACKGROUND AND PURPOSE Multiple sclerosis (MS) is a neurological disease of the central nervous system (CNS) that causes physical and cognitive impairments. IL-7Ra is a key non-MHC gene associated with MS. IL-7Ra is a likely functional candidate for this complex disease because it is involved in the development, maturation, and homeostasis of T and B cells. Our aim was to evaluate the expression level and controlling role of lnc-IL-7R in the expression of two variants of IL-7Ra in MS patients versus healthy controls and their correlation with certain clinical features. METHODS Using the real-time PCR method, we analyzed the expression levels of membrane-bound (IL-7RB) and soluble (IL-7RS) isoforms of IL-7R gene and lnc-IL-7R in 36 MS patients versus 30 healthy controls. RESULTS Our results revealed no significant difference between the expression levels of IL-7RB and IL-7RS isoforms of IL-7R gene and lnc-IL-7R in MS patients versus healthy controls (p=0.7, p=0.6 and p=0.8, respectively). Moreover, we found a significant correlation between the expression levels of IL-7RB with lnc-IL-7R, IL-7RS with lnc-IL-7R and IL-7RB with IL-7RS in both patient and control groups. CONCLUSIONS We have probably uncovered new evidence for the controlling role of long non-coding RNAs in the expression level of genes and their roles in MS.
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Affiliation(s)
- Parinaz Bina
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Majid Pahlevan Kakhki
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Ali Sahraian
- Iranian Center of Neurological Research, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrdad Behmanesh
- Department of Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
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23
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Bień K, Lewicki S, Zdanowski R, Skopinska-Różewska E, Krzyżowska M. Feeding Pregnant and Lactating Mice Rhodiola kirilowii Extracts helps to Preserve Thymus Function of their Adult Progeny. Pol J Vet Sci 2017; 19:581-587. [PMID: 27760021 DOI: 10.1515/pjvs-2016-0073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Plants belonging to Rhodiola kirilowii species, members of Rhodiola genus and Crassulaceae family, grow wildly in Tibet, Mongolia and China mountains and are traditionally used as adaptogens, antidepressants and anti-inflammatory remedies. Nowadays, R. kirilowii is cultivated in some countries, also in Poland. In our previous papers we reported immuno- and angio-modulatory effects of aqueous and hydro-alcoholic extracts of radix and rhizome of this plant in non-pregnant and pregnant mice. The aim of the present study was to evaluate the effect of feeding pregnant and further lactating mice these extracts on selected thymus function parameters in adult progeny. The counts of M-30+ apoptotic cells, in the thymuses obtained from progeny of mice fed during pregnancy and lactation water or 50% water-alcoholic extract of Rhodiola kirilowii, were significantly lower (p<0.05) than apoptotic cells counts observed in the control mice. No significant differences in the counts of IL-7-positive cells in the thymuses obtained from progeny of the control mice and mothers treated with water or hydro-alcohol extracts of Rhodiola kirilowii were observed.
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24
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Shi LZ, Fu T, Guan B, Chen J, Blando JM, Allison JP, Xiong L, Subudhi SK, Gao J, Sharma P. Interdependent IL-7 and IFN-γ signalling in T-cell controls tumour eradication by combined α-CTLA-4+α-PD-1 therapy. Nat Commun 2016; 7:12335. [PMID: 27498556 PMCID: PMC4979067 DOI: 10.1038/ncomms12335] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [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: 02/19/2016] [Accepted: 06/23/2016] [Indexed: 01/09/2023] Open
Abstract
Combination therapy with α-CTLA-4 and α-PD-1 has shown significant clinical responses in different types of cancer. However, the underlying mechanisms remain elusive. Here, combining detailed analysis of human tumour samples with preclinical tumour models, we report that concomitant blockade of CTLA-4 and PD-1 improves anti-tumour immune responses and synergistically eradicates tumour. Mechanistically, combination therapy relies on the interdependence between IL-7 and IFN-γ signalling in T cells, as lack of either pathway abrogates the immune-boosting and therapeutic effects of combination therapy. Combination treatment increases IL-7Rα expression on tumour-infiltrating T cells in an IFN-γ/IFN-γR signalling-dependent manner, which may serve as a potential biomarker for clinical trials with immune checkpoint blockade. Our data suggest that combining immune checkpoint blockade with IL-7 signalling could be an effective modality to improve immunotherapeutic efficacy. Taken together, we conclude that combination therapy potently reverses immunosuppression and eradicates tumours via an intricate interplay between IFN-γ/IFN-γR and IL-7/IL-7R pathways.
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Affiliation(s)
- Lewis Zhichang Shi
- Department of Genitourinary Medical Oncology, MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Tihui Fu
- Department of Genitourinary Medical Oncology, MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Baoxiang Guan
- Department of Genitourinary Medical Oncology, MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Jianfeng Chen
- Department of Genitourinary Medical Oncology, MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Jorge M Blando
- The Immunotherapy Platform, MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - James P Allison
- The Immunotherapy Platform, MD Anderson Cancer Center, Houston, Texas 77030, USA
- Department of Immunology, MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Liangwen Xiong
- Department of Genitourinary Medical Oncology, MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Sumit K Subudhi
- Department of Genitourinary Medical Oncology, MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Jianjun Gao
- Department of Genitourinary Medical Oncology, MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Padmanee Sharma
- Department of Genitourinary Medical Oncology, MD Anderson Cancer Center, Houston, Texas 77030, USA
- The Immunotherapy Platform, MD Anderson Cancer Center, Houston, Texas 77030, USA
- Department of Immunology, MD Anderson Cancer Center, Houston, Texas 77030, USA
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25
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Deiser K, Stoycheva D, Bank U, Blankenstein T, Schüler T. Interleukin-7 Modulates Anti-Tumor CD8+ T Cell Responses via Its Action on Host Cells. PLoS One 2016; 11:e0159690. [PMID: 27447484 PMCID: PMC4957759 DOI: 10.1371/journal.pone.0159690] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 07/05/2016] [Indexed: 01/04/2023] Open
Abstract
The adoptive transfer of antigen-specific CD8+ T cells is a promising approach for the treatment of chronic viral and malignant diseases. In order to improve adoptive T cell therapy (ATT) of cancer, recent strategies aim at the antibody-based blockade of immunosuppressive signaling pathways in CD8+ T cells. Alternatively, adjuvant effects of immunostimulatory cytokines might be exploited to improve therapeutic CD8+ T cell responses. For example, Interleukin-7 (IL-7) is a potent growth, activation and survival factor for CD8+ T cells that can be used to improve virus- and tumor-specific CD8+ T cell responses. Although direct IL-7 effects on CD8+ T cells were studied extensively in numerous models, the contribution of IL-7 receptor-competent (IL-7R+) host cells remained unclear. In the current study we provide evidence that CD8+ T cell-mediated tumor rejection in response to recombinant IL-7 (rIL-7) therapy is strictly dependent on IL-7R+ host cells. On the contrary, CD8+ T cell expansion is independent of host IL-7R expression. If, however, rIL-7 therapy and peptide vaccination are combined, host IL-7R signaling is crucial for CD8+ T cell expansion. Unexpectedly, maximum CD8+ T cell expansion relies mainly on IL-7R signaling in non-hematopoietic host cells, similar to the massive accumulation of dendritic cells and granulocytes. In summary, we provide evidence that IL-7R+ host cells are major targets of rIL-7 that modulate therapeutic CD8+ T cell responses and the outcome of rIL-7-assisted ATT. This knowledge may have important implications for the design and optimization of clinical ATT protocols.
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Affiliation(s)
- Katrin Deiser
- Institute of Molecular and Clinical Immunology, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Institute of Immunology, Charité-Universitaetsmedizin Berlin, Campus Benjamin Franklin, 12200 Berlin, Germany
| | - Diana Stoycheva
- Institute of Molecular and Clinical Immunology, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Institute of Immunology, Charité-Universitaetsmedizin Berlin, Campus Benjamin Franklin, 12200 Berlin, Germany
| | - Ute Bank
- Institute of Molecular and Clinical Immunology, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Thomas Blankenstein
- Institute of Immunology, Charité-Universitaetsmedizin Berlin, Campus Benjamin Franklin, 12200 Berlin, Germany
- Max-Delbrück-Center for Molecular Medicine, 13125 Berlin, Germany
| | - Thomas Schüler
- Institute of Molecular and Clinical Immunology, Medical Faculty, Otto-von-Guericke University, 39120 Magdeburg, Germany
- Institute of Immunology, Charité-Universitaetsmedizin Berlin, Campus Benjamin Franklin, 12200 Berlin, Germany
- * E-mail:
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26
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Cheng Y, Chikwava K, Wu C, Zhang H, Bhagat A, Pei D, Choi JK, Tong W. LNK/SH2B3 regulates IL-7 receptor signaling in normal and malignant B-progenitors. J Clin Invest 2016; 126:1267-81. [PMID: 26974155 DOI: 10.1172/jci81468] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 02/03/2016] [Indexed: 12/12/2022] Open
Abstract
Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a high-risk ALL commonly associated with alterations that affect the tyrosine kinase pathway, tumor suppressors, and lymphoid transcription factors. Loss-of-function mutations in the gene-encoding adaptor protein LNK (also known as SH2B3) are found in Ph-like ALLs; however, it is not clear how LNK regulates normal B cell development or promotes leukemogenesis. Here, we have shown that combined loss of Lnk and tumor suppressors Tp53 or Ink4a/Arf in mice triggers a highly aggressive and transplantable precursor B-ALL. Tp53-/-Lnk-/- B-ALLs displayed similar gene expression profiles to human Ph-like B-ALLs, supporting use of this model for preclinical and molecular studies. Preleukemic Tp53-/-Lnk-/- pro-B progenitors were hypersensitive to IL-7, exhibited marked self-renewal in vitro and in vivo, and were able to initiate B-ALL in transplant recipients. Mechanistically, we demonstrated that LNK regulates pro-B progenitor homeostasis by attenuating IL-7-stimuated JAK/STAT5 signaling via a direct interaction with phosphorylated JAK3. Moreover, JAK inhibitors were effective in prolonging survival of mice transplanted with Lnk-/-Tp53-/- leukemia. Additionally, synergistic administration of PI3K/mTOR and JAK inhibitors further abrogated leukemia development. Hence, our results suggest that LNK suppresses IL-7R/JAK/STAT signaling to restrict pro-/pre-B progenitor expansion and leukemia development, providing a pathogenic mechanism and a potential therapeutic approach for B-ALLs with LNK mutations.
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Zhong C, Cui K, Wilhelm C, Hu G, Mao K, Belkaid Y, Zhao K, Zhu J. Group 3 innate lymphoid cells continuously require the transcription factor GATA-3 after commitment. Nat Immunol 2016; 17:169-78. [PMID: 26595886 PMCID: PMC4718889 DOI: 10.1038/ni.3318] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [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: 08/12/2015] [Accepted: 10/09/2015] [Indexed: 12/15/2022]
Abstract
The transcription factor GATA-3 is indispensable for the development of all innate lymphoid cells (ILCs) that express the interleukin 7 receptor α-chain (IL-7Rα). However, the function of low GATA-3 expression in committed group 3 ILCs (ILC3 cells) has not been identified. We found that GATA-3 regulated the homeostasis of ILC3 cells by controlling IL-7Rα expression. In addition, GATA-3 served a critical function in the development of the NKp46(+) ILC3 subset by regulating the balance between the transcription factors T-bet and RORγt. Among NKp46(+) ILC3 cells, although GATA-3 positively regulated genes specific to the NKp46(+) ILC3 subset, it negatively regulated genes specific to lymphoid tissue-inducer (LTi) or LTi-like ILC3 cells. Furthermore, GATA-3 was required for IL-22 production in both ILC3 subsets. Thus, despite its low expression, GATA-3 was critical for the homeostasis, development and function of ILC3 subsets.
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MESH Headings
- Animals
- Antigens, Ly/genetics
- Antigens, Ly/metabolism
- Cell Differentiation/genetics
- Cell Differentiation/immunology
- Cell Lineage/genetics
- Cell Lineage/immunology
- Cluster Analysis
- GATA3 Transcription Factor/deficiency
- GATA3 Transcription Factor/genetics
- GATA3 Transcription Factor/metabolism
- Gene Expression Profiling
- Gene Expression Regulation
- Homeostasis
- Immunity, Innate/genetics
- Immunophenotyping
- Interleukins/biosynthesis
- Lymphocyte Subsets/cytology
- Lymphocyte Subsets/immunology
- Lymphocyte Subsets/metabolism
- Mice
- Mice, Knockout
- Mice, Transgenic
- Natural Cytotoxicity Triggering Receptor 1/genetics
- Natural Cytotoxicity Triggering Receptor 1/metabolism
- Nuclear Receptor Subfamily 1, Group F, Member 3/genetics
- Nuclear Receptor Subfamily 1, Group F, Member 3/metabolism
- Phenotype
- Protein Binding
- Receptors, Interleukin-7/genetics
- Receptors, Interleukin-7/metabolism
- T-Box Domain Proteins/metabolism
- Interleukin-22
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Affiliation(s)
- Chao Zhong
- Molecular and Cellular Immunoregulation Unit, Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland 20892
| | - Kairong Cui
- Systems Biology Center, National Heart, Lung and Blood Institute, Bethesda, Maryland 20892
| | - Christoph Wilhelm
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland 20892
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, University of Bonn, Bonn 53127, Germany
| | - Gangqing Hu
- Systems Biology Center, National Heart, Lung and Blood Institute, Bethesda, Maryland 20892
| | - Kairui Mao
- Laboratory of System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892
| | - Yasmine Belkaid
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland 20892
| | - Keji Zhao
- Systems Biology Center, National Heart, Lung and Blood Institute, Bethesda, Maryland 20892
| | - Jinfang Zhu
- Molecular and Cellular Immunoregulation Unit, Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland 20892
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Schmaler M, Broggi MAS, Lagarde N, Stöcklin BF, King CG, Finke D, Rossi SW. IL-7R signaling in regulatory T cells maintains peripheral and allograft tolerance in mice. Proc Natl Acad Sci U S A 2015; 112:13330-5. [PMID: 26450881 PMCID: PMC4629352 DOI: 10.1073/pnas.1510045112] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [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] [Indexed: 12/31/2022] Open
Abstract
Foxp3(+)CD4(+) regulatory T cells (Treg) have a crucial role in controlling CD4(+) T-cell activation, proliferation, and effector function. However, the molecular mechanisms regulating Treg function remain poorly understood. Here we assessed the role of IL-7, a key cytokine regulating T-cell homeostasis, in suppressor capacity of Treg. Using a skin allograft model in which transplant acceptance is controlled by the number of transferred Treg, we find that Treg impair the proliferation of allogeneic CD4(+) T cells, decrease production of IFNγ by effector T cells, and prevent early and increase late IL-7 induction by lymph node stromal cells. Increased IL-7 availability enhanced Treg survival, stabilized Treg molecular signature, enhanced surface IL-2Rα expression, and improved IL-2 binding of Treg, which diminished proliferation of alloreactive CD4(+) T cells. Sequestration of IL-7 or impairment of IL-7R signaling after allograft transplantation abolished Treg-mediated tolerance by limiting their suppressive capacity. Aged Il7rα-ΔTreg mice displayed mild symptoms of autoimmunity correlating with impaired expansion of effector Treg in response to IL-2. Thus, IL-7R signaling on Treg supports the functional activity of effector Treg by increasing their IL-2 sensitivity in the lymph node during peripheral and allograft tolerance.
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Affiliation(s)
- Mathias Schmaler
- Department of Biomedicine, Immunoregulation, University of Basel and University Hospital of Basel, Basel 4031, Switzerland;
| | - Maria A S Broggi
- Department of Biomedicine, Immunoregulation, University of Basel and University Hospital of Basel, Basel 4031, Switzerland
| | - Nadège Lagarde
- Department of Biomedicine, Immunoregulation, University of Basel and University Hospital of Basel, Basel 4031, Switzerland
| | - Benjamin F Stöcklin
- Department of Biomedicine, Immunoregulation, University of Basel and University Hospital of Basel, Basel 4031, Switzerland
| | - Carolyn G King
- Department of Biomedicine, Transplantation Immunology and Nephrology, University of Basel and University Hospital of Basel, Basel 4031, Switzerland
| | - Daniela Finke
- Department of Biomedicine, University of Basel and University Hospital of Basel, Basel 4058, Switzerland
| | - Simona W Rossi
- Department of Biomedicine, Immunoregulation, University of Basel and University Hospital of Basel, Basel 4031, Switzerland;
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29
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Lee M, Song SJ, Choi MS, Yu R, Park T. IL-7 receptor deletion ameliorates diet-induced obesity and insulin resistance in mice. Diabetologia 2015; 58:2361-70. [PMID: 26152662 DOI: 10.1007/s00125-015-3684-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 06/17/2015] [Indexed: 01/07/2023]
Abstract
AIM/HYPOTHESIS Obesity-induced inflammation plays an important role in the development of insulin resistance and type 2 diabetes. Recent studies have demonstrated that adiposity can be improved by ablating certain inflammatory signalling pathways. Although the IL-7 receptor (IL-7R) is mostly known as a key regulator of T lymphocyte development and homeostasis, its role in obesity and metabolic diseases is unknown. Because IL-7 is markedly increased in the serum of obese individuals and IL-7R (also known as IL7R) is overexpressed in white adipose tissue (WAT) in obesity, we studied the metabolic consequences of genetic Il-7r ablation in mice. METHODS Age-matched Il-7r-deficient (Il-7r KO) and wild-type (WT) littermates were fed a standard chow or high-fat diet (HFD) for 14 weeks. Their serum metabolic variables were measured. The expression of genes and proteins related to insulin resistance and inflammation was evaluated in WAT. RESULTS We demonstrated that Il-7r KO mice exhibited significantly reduced body weight gain and visceral adiposity compared with WT controls on both chow and HFD. The expression of signalling molecules involved in adipogenesis was reduced in the WAT of Il-7r KO mice. We also found that Il-7r KO mice had significantly enhanced glucose homeostasis and insulin sensitivity. Consistent with an improved metabolic phenotype, proinflammatory cytokine production and macrophage infiltration was attenuated in the WAT of Il-7r KO mice. CONCLUSIONS/INTERPRETATION The IL-7R plays an important role in the induction of HFD-induced adipogenesis and insulin resistance in mice.
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Affiliation(s)
- Miyoung Lee
- Department of Food and Nutrition, Brain Korea 21 Plus Project, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Su Jin Song
- Department of Food and Nutrition, Brain Korea 21 Plus Project, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea
| | - Myung-Sook Choi
- Department of Food Science and Nutrition, Kyungpook National University, Daegu, Republic of Korea
| | - Rina Yu
- Department of Food Science and Nutrition, University of Ulsan, Mugeo-dong, Nam-ku, Ulsan, Republic of Korea
| | - Taesun Park
- Department of Food and Nutrition, Brain Korea 21 Plus Project, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, Republic of Korea.
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30
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Madera-Sandoval RL, Reyes-Maldonado E, Dzul-Caamal R, Gallegos-Rangel E, Domínguez-López ML, García-Latorre E, Vega-López A. Fat-associated lymphoid cluster in Cyprinus carpio: Characterisation and its relation with peritoneal haemangiosarcoma. Fish Shellfish Immunol 2015; 44:633-641. [PMID: 25804491 DOI: 10.1016/j.fsi.2015.03.019] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 02/21/2015] [Accepted: 03/14/2015] [Indexed: 06/04/2023]
Abstract
FALC cells are natural helper cells producing Th2-type cytokines, which express c-kit, Sca-1, IL7R and CD45 in mouse and human. These cells are involved in allergic responses and contribute to the inflammatory reactions of adipose tissue; however, a lack of information prevails about the presence of these cells in other species. The aim of the study was to identify and characterise FALC cells in the common carp (Cyprinus carpio) using immunohistochemistry and molecular biology techniques as well as to explore their relationships with their microenvironment. Histological description of the FALC was performed using H&E and polyclonal antibodies were used against cell-surface markers such as c-kit, Sca-1 and CD45. Furthermore, gene expression of c-kit, Sca-1 and IL7R was assessed. C. carpio FALC cells express the same surface markers reported in FALC of the mouse at both the pre- and post-transcriptional level. By exposure to the soluble fraction of helminths, FALC cells produce abundant Th2 cytokines (IL-5, IL-6 and IL-13) but do not synthesise IL-1α. Additionally, FALC cells probably participate in vascular remodelling of the intestine vessels, inducing tumours because a malignant haemangiosarcoma in the peritoneal cavity was found. In this tumour, abundant FALC with their characteristic cell-surface markers were detected. The findings of this study suggest the involvement of some proto-oncogenes such as c-kit and Sca-1, and the deregulation of Src kinases modulated by CD45 present in C. carpio FALC with the ontogeny of peritoneal haemangiosarcoma in this fish species.
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Affiliation(s)
- Ruth L Madera-Sandoval
- Laboratorio de Toxicología Ambiental, Departamento de Ingeniería en Sistemas Ambientales, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, México, D.F. CP 07738, Mexico
| | - Elba Reyes-Maldonado
- Laboratorio de Citología, Departamento de Morfología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala s/n, Casco de Santo Tomás, México, D.F. CP 11340, Mexico
| | - Ricardo Dzul-Caamal
- Laboratorio de Toxicología Ambiental, Departamento de Ingeniería en Sistemas Ambientales, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, México, D.F. CP 07738, Mexico
| | - Esperanza Gallegos-Rangel
- Laboratorio de Toxicología Ambiental, Departamento de Ingeniería en Sistemas Ambientales, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, México, D.F. CP 07738, Mexico
| | - María Lilia Domínguez-López
- Laboratorio de Inmunoquímica I, Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala s/n, Casco de Santo Tomás, México, D.F. CP 11340, Mexico
| | - Ethel García-Latorre
- Laboratorio de Inmunoquímica I, Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala s/n, Casco de Santo Tomás, México, D.F. CP 11340, Mexico
| | - Armando Vega-López
- Laboratorio de Toxicología Ambiental, Departamento de Ingeniería en Sistemas Ambientales, Av. Wilfrido Massieu s/n, Unidad Profesional Zacatenco, México, D.F. CP 07738, Mexico.
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31
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Normanton M, Alvarenga H, Hamerschlak N, Ribeiro A, Kondo A, Rizzo LV, Marti LC. Interleukin 7 plays a role in T lymphocyte apoptosis inhibition driven by mesenchymal stem cell without favoring proliferation and cytokines secretion. PLoS One 2014; 9:e106673. [PMID: 25184791 PMCID: PMC4153662 DOI: 10.1371/journal.pone.0106673] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 07/30/2014] [Indexed: 12/15/2022] Open
Abstract
Since 2004, when a case report describing the use of human mesenchymal stem cells (hMSCs) infusion as a therapy for GVHD after bone marrow transplantation, a new perspective in MSC function emerged. Since then hMSCs immunomodulatory potential became the target of several studies. Although great progress has been made in our understanding of hMSCs, their effect on T cell remains obscure. Our study has confirmed the already described effect of hMSCs on lymphocytes proliferation and survival. We also show that the impairment of lymphocyte proliferation and apoptosis is contact-independent and occurs in a prostaglandin-independent manner. A potential correlation between IL-7 and hMSCs effect is suggested, as we observed an increase in IL-7 receptors (CD127) on lymphocyte membrane in MSC presence. Additionally, blocking IL-7 in hMSCs-lymphocytes co-cultures increased lymphocytes apoptosis and we also have demonstrated that hMSCs are able to produce this interleukin. Moreover, we found that during Th1/Th17 differentiation in vitro, hMSCs presence leads to Th1/Th17 cells with reduced capacity of INF-y and IL-17 secretion respectively, regardless of having several pro-inflammatory cytokines in culture. We did not confirm an increment of Treg in these cultures, but a reduced percentage of INF-y/IL-17 secreting cells was observed, suggesting that the ratio between anti and pro-inflammatory cells changed. This changed ratio is very important to GvHD therapy and links hMSCs to an anti-inflammatory role. Taken together, our findings provide important preliminary results on the lymphocyte pathway modulated by MSCs and may contribute for developing novel treatments and therapeutic targets for GvHD and others autoimmune diseases.
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Affiliation(s)
- Marilia Normanton
- Hospital Israelita Albert Einstein, Instituto Israelita de Ensino e Pesquisa Albert Einstein (IIEP-AE), São Paulo, SP, Brasil
- Programa de Pós-graduação em Alergia e Imunopatologia, Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brasil
| | - Heliene Alvarenga
- Hospital Israelita Albert Einstein, Instituto Israelita de Ensino e Pesquisa Albert Einstein (IIEP-AE), São Paulo, SP, Brasil
- Programa de Pós-graduação em Alergia e Imunopatologia, Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brasil
| | - Nelson Hamerschlak
- Hospital Israelita Albert Einstein, Bone Marrow Transplant Program, São Paulo, SP, Brasil
| | - Andreza Ribeiro
- Hospital Israelita Albert Einstein, Oncology Department, São Paulo, SP, Brasil
| | - Andrea Kondo
- Hospital Israelita Albert Einstein, Blood Bank Department, São Paulo, SP, Brasil
| | - Luiz Vicente Rizzo
- Hospital Israelita Albert Einstein, Instituto Israelita de Ensino e Pesquisa Albert Einstein (IIEP-AE), São Paulo, SP, Brasil
| | - Luciana Cavalheiro Marti
- Hospital Israelita Albert Einstein, Instituto Israelita de Ensino e Pesquisa Albert Einstein (IIEP-AE), São Paulo, SP, Brasil
- Programa de Pós-graduação em Alergia e Imunopatologia, Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, SP, Brasil
- * E-mail:
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32
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Saidakova EV, Korolevskaya LB, Shmagel NG, Shmagel KV, Chereshnev VA. The role of interleukin 7 and its cell receptor in a poor recovery of CD4(+) T cells in HIV-infected patients receiving antiretroviral therapy. Dokl Biol Sci 2014; 458:313-315. [PMID: 25371261 DOI: 10.1134/s0012496614050068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Indexed: 06/04/2023]
Affiliation(s)
- E V Saidakova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch, Russian Academy of Sciences, Perm', Russia,
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33
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Klose CSN, Flach M, Möhle L, Rogell L, Hoyler T, Ebert K, Fabiunke C, Pfeifer D, Sexl V, Fonseca-Pereira D, Domingues RG, Veiga-Fernandes H, Arnold SJ, Busslinger M, Dunay IR, Tanriver Y, Diefenbach A. Differentiation of type 1 ILCs from a common progenitor to all helper-like innate lymphoid cell lineages. Cell 2014; 157:340-356. [PMID: 24725403 DOI: 10.1016/j.cell.2014.03.030] [Citation(s) in RCA: 820] [Impact Index Per Article: 82.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 02/14/2014] [Accepted: 03/21/2014] [Indexed: 12/11/2022]
Abstract
Innate lymphoid cells (ILCs) are a recently recognized group of lymphocytes that have important functions in protecting epithelial barriers against infections and in maintaining organ homeostasis. ILCs have been categorized into three distinct groups, transcriptional circuitry and effector functions of which strikingly resemble the various T helper cell subsets. Here, we identify a common, Id2-expressing progenitor to all interleukin 7 receptor-expressing, "helper-like" ILC lineages, the CHILP. Interestingly, the CHILP differentiated into ILC2 and ILC3 lineages, but not into conventional natural killer (cNK) cells that have been considered an ILC1 subset. Instead, the CHILP gave rise to a peculiar NKp46(+) IL-7Rα(+) ILC lineage that required T-bet for specification and was distinct of cNK cells or other ILC lineages. Such ILC1s coproduced high levels of IFN-γ and TNF and protected against infections with the intracellular parasite Toxoplasma gondii. Our data significantly advance our understanding of ILC differentiation and presents evidence for a new ILC lineage that protects barrier surfaces against intracellular infections.
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Affiliation(s)
- Christoph S N Klose
- Institute of Medical Microbiology and Hygiene, University of Mainz Medical Centre, Obere Zahlbacher Strasse 67, 55131 Mainz, Germany; Department of Medical Microbiology and Hygiene, Institute of Medical Microbiology and Hygiene, University of Freiburg Medical Centre, Hermann-Herder-Strasse 11, 79104 Freiburg, Germany; Renal Division, University of Freiburg Medical Centre, Hugstetter Strasse 55, 79106 Freiburg, Germany
| | - Melanie Flach
- Institute of Medical Microbiology and Hygiene, University of Mainz Medical Centre, Obere Zahlbacher Strasse 67, 55131 Mainz, Germany; Department of Medical Microbiology and Hygiene, Institute of Medical Microbiology and Hygiene, University of Freiburg Medical Centre, Hermann-Herder-Strasse 11, 79104 Freiburg, Germany
| | - Luisa Möhle
- Institute of Medical Microbiology, Otto-von-Guericke University Magdeburg, Leipziger Strasse 44, 39120 Magdeburg, Germany
| | - Leif Rogell
- Institute of Medical Microbiology and Hygiene, University of Mainz Medical Centre, Obere Zahlbacher Strasse 67, 55131 Mainz, Germany; Department of Medical Microbiology and Hygiene, Institute of Medical Microbiology and Hygiene, University of Freiburg Medical Centre, Hermann-Herder-Strasse 11, 79104 Freiburg, Germany; Max-Planck Institute of Immunobiology and Epigenetics, Stübeweg 51, 79108 Freiburg, Germany
| | - Thomas Hoyler
- Institute of Medical Microbiology and Hygiene, University of Mainz Medical Centre, Obere Zahlbacher Strasse 67, 55131 Mainz, Germany; Department of Medical Microbiology and Hygiene, Institute of Medical Microbiology and Hygiene, University of Freiburg Medical Centre, Hermann-Herder-Strasse 11, 79104 Freiburg, Germany
| | - Karolina Ebert
- Institute of Medical Microbiology and Hygiene, University of Mainz Medical Centre, Obere Zahlbacher Strasse 67, 55131 Mainz, Germany; Department of Medical Microbiology and Hygiene, Institute of Medical Microbiology and Hygiene, University of Freiburg Medical Centre, Hermann-Herder-Strasse 11, 79104 Freiburg, Germany; Renal Division, University of Freiburg Medical Centre, Hugstetter Strasse 55, 79106 Freiburg, Germany
| | - Carola Fabiunke
- Institute of Medical Microbiology and Hygiene, University of Mainz Medical Centre, Obere Zahlbacher Strasse 67, 55131 Mainz, Germany; Department of Medical Microbiology and Hygiene, Institute of Medical Microbiology and Hygiene, University of Freiburg Medical Centre, Hermann-Herder-Strasse 11, 79104 Freiburg, Germany; Renal Division, University of Freiburg Medical Centre, Hugstetter Strasse 55, 79106 Freiburg, Germany
| | - Dietmar Pfeifer
- Genomics Lab, Department of Hematology, Oncology and Stem Cell Transplantation, University Medical Center Freiburg, Hugstetter Strasse 55, 79106 Freiburg, Germany
| | - Veronika Sexl
- Institute of Pharmacology and Toxicology, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210 Vienna, Austria
| | - Diogo Fonseca-Pereira
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Av. Prof. Egas Moniz, Edifício Egas Moniz, 1649-028 Lisboa, Portugal
| | - Rita G Domingues
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Av. Prof. Egas Moniz, Edifício Egas Moniz, 1649-028 Lisboa, Portugal
| | - Henrique Veiga-Fernandes
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Av. Prof. Egas Moniz, Edifício Egas Moniz, 1649-028 Lisboa, Portugal
| | - Sebastian J Arnold
- Renal Division, University of Freiburg Medical Centre, Hugstetter Strasse 55, 79106 Freiburg, Germany; BIOSS, Centre of Biological Signalling Studies, Albert Ludwigs University Freiburg, Schänzlestrasse 18, 79104 Freiburg, Germany
| | - Meinrad Busslinger
- Research Institute of Molecular Pathology, Vienna Biocenter, Dr. Bohrgasse 7, 1020 Vienna, Austria
| | - Ildiko R Dunay
- Institute of Medical Microbiology, Otto-von-Guericke University Magdeburg, Leipziger Strasse 44, 39120 Magdeburg, Germany
| | - Yakup Tanriver
- Department of Medical Microbiology and Hygiene, Institute of Medical Microbiology and Hygiene, University of Freiburg Medical Centre, Hermann-Herder-Strasse 11, 79104 Freiburg, Germany; Renal Division, University of Freiburg Medical Centre, Hugstetter Strasse 55, 79106 Freiburg, Germany
| | - Andreas Diefenbach
- Institute of Medical Microbiology and Hygiene, University of Mainz Medical Centre, Obere Zahlbacher Strasse 67, 55131 Mainz, Germany.
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Abstract
Interleukin (IL)-7 is critical for the maintenance of the peripheral T-cell compartment of the adaptive immune system. IL-7 receptor α (IL-7Rα) expression is subject to developmental regulation and new T cells induce expression as they leave the thymus, which is essential for their long-term survival. It is not understood how this expression is regulated. Here, we identify a role for the Nuclear Factor κ-B (NF-κB) signaling pathway in controlling expression of IL-7Rα in new T cells. Perturbations to NF-κB signaling, either by deletion of Inhibitor of Kappa-B Kinase-2 (IKK2) or by inhibiting Rel dimer activity, prevented normal IL-7Rα expression in new T cells. Defective IL-7Rα expression resulted in impaired survival and homeostatic cell division responses by T cells that could be attributed to their failure to express IL-7Rα normally. Surprisingly, NF-κB signaling was only required transiently in new T cells to allow their normal expression of IL-7Rα, because IKK2 deletion in mature T cells had no effect on IL-7Rα expression or their normal homeostatic responsiveness. Therefore, we identify a developmental function for NF-κB signaling in the homeostatic maturation of new T cells, by regulating IL-7Rα expression.
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Affiliation(s)
- Ana Silva
- Division of Immune Cell Biology, Medical Research Council National Institute for Medical Research, London, NW7 1AA, United Kingdom
| | | | - Steven C. Ley
- Division of Immune Cell Biology, Medical Research Council National Institute for Medical Research, London, NW7 1AA, United Kingdom
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35
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Liu ZH, Wang MH, Ren HJ, Qu W, Sun LM, Zhang QF, Qiu XS, Wang EH. Interleukin 7 signaling prevents apoptosis by regulating bcl-2 and bax via the p53 pathway in human non-small cell lung cancer cells. Int J Clin Exp Pathol 2014; 7:870-881. [PMID: 24695377 PMCID: PMC3971289] [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] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Accepted: 01/06/2014] [Indexed: 06/03/2023]
Abstract
Interleukin 7/Interleukin 7 receptor (IL-7/IL-7R) signaling induces the upregulation of cyclin D1 to promote cell proliferation in lung cancer, but its role in preventing the apoptosis of non-small cell lung cancer (NSCLC) cell lines remains unknown. To study the role of IL-7 in lung cancer cell apoptosis, normal HBE cells as well as A549 and H1299 NSCLC cells were examined using flow cytometry. The results showed that the activation of IL-7R by its specific ligand, exogenous interleukin-7, was associated with a significant decline in apoptotic cells. Western blot and real-time PCR assays indicated that the activation of IL-7/IL-7R significantly upregulated anti-apoptotic bcl-2 and downregulated pro-apoptotic bax and p53 at both protein and mRNA levels. The knockdown of IL-7R through small interfering RNAs significantly attenuated these effects of exogenous IL-7. However, there was no significant anti-apoptotic effect in H1299 (p53-) cells. Furthermore, the inhibition of p53 significantly abolished the effects of IL-7/IL-7R on lung cancer cell apoptosis. These results strongly suggest that IL-7/IL-7R prevents apoptosis by upregulating the expression of bcl-2 and by downregulating the expression of bax, potentially via the p53 pathway in A549 and HBE cells.
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Affiliation(s)
- Zi-Hui Liu
- Department of Pathology, College of Basic Medical Sciences, China Medical University Shenyang, China
| | - Ming-Hui Wang
- Department of Breast Surgery, The Affiliated Hospital of Chengde Medical College Chengde, China
| | - Hong-Jiu Ren
- Department of Pathology, College of Basic Medical Sciences, China Medical University Shenyang, China
| | - Wei Qu
- Department of Pathology, College of Basic Medical Sciences, China Medical University Shenyang, China
| | - Li-Mei Sun
- Department of Pathology, College of Basic Medical Sciences, China Medical University Shenyang, China
| | - Qing-Fu Zhang
- Department of Pathology, College of Basic Medical Sciences, China Medical University Shenyang, China
| | - Xue-Shan Qiu
- Department of Pathology, College of Basic Medical Sciences, China Medical University Shenyang, China ; Department of Pathology, The First Affiliated Hospital of China Medical University Shenyang, China
| | - En-Hua Wang
- Department of Pathology, College of Basic Medical Sciences, China Medical University Shenyang, China ; Department of Pathology, The First Affiliated Hospital of China Medical University Shenyang, China
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36
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Abstract
Antigen-experienced T-cells directly target and destroy insulin-producing beta cells in patients with Type 1 diabetes. Consequently, T-cells are also major targets of immunomodulatory strategies that aim to prevent or delay the immune mediated loss of islet beta-cell function. These strategies have had modest success, prompting efforts into better defining the mechanisms that drive the differentiation of quiescent autoreactive clones into pathogenic effector and memory T-cells. Recent and novel findings now indicate that in addition to the classic mechanisms of antigenic recognition, autoreactive T-cell differentiation and expansion can be boosted by the homeostatic cytokine interleukin-7. In this article, we discuss recent evidence of the role of IL-7 mediated T-cell proliferation in the pathogenesis of Type 1 diabetes and the rationale for including immunomodulatory molecules targeting the IL-7/IL-7R axis in immunotherapeutic strategies to control beta-cell autoimmunity.
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Affiliation(s)
- Paolo Monti
- Diabetes Research Institute (DRI), IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy,
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McKay FC, Hoe E, Parnell G, Gatt P, Schibeci SD, Stewart GJ, Booth DR. IL7Rα expression and upregulation by IFNβ in dendritic cell subsets is haplotype-dependent. PLoS One 2013; 8:e77508. [PMID: 24147013 PMCID: PMC3797747 DOI: 10.1371/journal.pone.0077508] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [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: 10/07/2012] [Accepted: 09/11/2013] [Indexed: 12/20/2022] Open
Abstract
The IL7Rα gene is unequivocally associated with susceptibility to multiple sclerosis (MS). Haplotype 2 (Hap 2) confers protection from MS, and T cells and dendritic cells (DCs) of Hap 2 exhibit reduced splicing of exon 6, resulting in production of relatively less soluble receptor, and potentially more response to ligand. We have previously shown in CD4 T cells that IL7Rα haplotypes 1 and 2, but not 4, respond to interferon beta (IFNβ), the most commonly used immunomodulatory drug in MS, and that haplotype 4 (Hap 4) homozygotes have the highest risk of developing MS. We now show that IL7R expression increases in myeloid cells in response to IFNβ, but that the response is haplotype-dependent, with cells from homozygotes for Hap 4 again showing no response. This was shown using freshly derived monocytes, in vitro cultured immature and mature monocyte-derived dendritic cells, and by comparing homozygotes for the common haplotypes, and relative expression of alleles in heterozygotes (Hap 4 vs not Hap 4). As for T cells, in all myeloid cell subsets examined, Hap 2 homozygotes showed a trend for reduced splicing of exon 6 compared to the other haplotypes, significantly so in most conditions. These data are consistent with increased signaling being protective from MS, constitutively and in response to IFNβ. We also demonstrate significant regulation of immune response, chemokine activity and cytokine biosynthesis pathways by IL7Rα signaling in IFNβ -treated myeloid subsets. IFNβ-responsive genes are over-represented amongst genes associated with MS susceptibility. IL7Rα haplotype may contribute to MS susceptibility through reduced capacity for IL7Rα signalling in myeloid cells, especially in the presence of IFNβ, and is currently under investigation as a predictor of therapeutic response.
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Affiliation(s)
- Fiona C. McKay
- Institute for Immunology and Allergy Research, Westmead Millennium Institute, Sydney, New South Whales, Australia
- Department of Medicine, University of Sydney, Sydney, New South Whales, Australia
| | - Edwin Hoe
- Institute for Immunology and Allergy Research, Westmead Millennium Institute, Sydney, New South Whales, Australia
- Department of Medicine, University of Sydney, Sydney, New South Whales, Australia
| | - Grant Parnell
- Institute for Immunology and Allergy Research, Westmead Millennium Institute, Sydney, New South Whales, Australia
- Department of Medicine, University of Sydney, Sydney, New South Whales, Australia
| | - Prudence Gatt
- Institute for Immunology and Allergy Research, Westmead Millennium Institute, Sydney, New South Whales, Australia
- Department of Medicine, University of Sydney, Sydney, New South Whales, Australia
| | - Stephen D. Schibeci
- Institute for Immunology and Allergy Research, Westmead Millennium Institute, Sydney, New South Whales, Australia
- Department of Medicine, University of Sydney, Sydney, New South Whales, Australia
| | - Graeme J. Stewart
- Institute for Immunology and Allergy Research, Westmead Millennium Institute, Sydney, New South Whales, Australia
- Department of Medicine, University of Sydney, Sydney, New South Whales, Australia
- * E-mail: (GJS); (DRB)
| | - David R. Booth
- Institute for Immunology and Allergy Research, Westmead Millennium Institute, Sydney, New South Whales, Australia
- Department of Medicine, University of Sydney, Sydney, New South Whales, Australia
- * E-mail: (GJS); (DRB)
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38
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Rowe AM, Murray SE, Raué HP, Koguchi Y, Slifka MK, Parker DC. A cell-intrinsic requirement for NF-κB-inducing kinase in CD4 and CD8 T cell memory. J Immunol 2013; 191:3663-72. [PMID: 24006459 PMCID: PMC3815446 DOI: 10.4049/jimmunol.1301328] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
NF-κB-inducing kinase [(NIK), MAP3K14] is an essential kinase linking a subset of TNFR family members to the noncanonical NF-κB pathway. To assess the cell-intrinsic role of NIK in murine T cell function, we generated mixed bone marrow chimeras using bone marrow from NIK knockout (KO) and wild-type (WT) donor mice and infected the chimeras with lymphocytic choriomeningitis virus (LCMV). The chimeras possess an apparently normal immune system, including a mixture of NIK KO and WT T cells, and the virus was cleared normally. Comparison of the NIK KO and WT CD4 and CD8 T cell responses at 8 d post infection revealed modest but significant differences in the acute response. In both CD4 and CD8 compartments, relatively fewer activated (CD44(hi)) NIK KO T cells were present, but within the CD44(hi) population, a comparable percentage of the activated cells produced IFN-γ in response to ex vivo stimulation with antigenic LCMV peptides, although IL-7R expression was reduced in the NIK KO CD8 T cells. Assessment of the LCMV-specific memory at 65 d post infection revealed many more LCMV-specific WT memory T cells than NIK KO memory T cells in both the CD4 and the CD8 compartments, although the small number of surviving NIK KO memory T cells responded to secondary challenge with virus. These results demonstrate a cell-intrinsic requirement for NIK in the generation and/or maintenance of memory T cells in response to acute viral infection.
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Affiliation(s)
- Alexander M. Rowe
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, OR 07239
| | - Susan E. Murray
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, OR 07239
| | - Hans-Peter Raué
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006
| | - Yoshinobu Koguchi
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, OR 07239
| | - Mark K. Slifka
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, OR 07239
- Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006
| | - David C. Parker
- Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, OR 07239
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Li L, Nishio J, van Maurik A, Mathis D, Benoist C. Differential response of regulatory and conventional CD4⁺ lymphocytes to CD3 engagement: clues to a possible mechanism of anti-CD3 action? J Immunol 2013; 191:3694-704. [PMID: 23986534 PMCID: PMC3932531 DOI: 10.4049/jimmunol.1300408] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Several clinical trials have shown anti-CD3 treatment to be a promising therapy for autoimmune diabetes, but its mechanism of action remains unclear. Foxp3(+) regulatory T cells (Tregs) are likely to be involved, but through unknown mechanistic pathways. We profiled the transcriptional consequences in CD4(+) Tregs and conventional T cells (Tconvs) in the first hours and days after anti-CD3 treatment of NOD mice. Anti-CD3 treatment led to a transient transcriptional response, terminating faster than most Ag-induced responses. Most transcripts were similarly induced in Tregs and Tconvs, but several were differential, in particular, those encoding the IL-7R and transcription factors Id2/3 and Gfi1, upregulated in Tregs but repressed in Tconvs. Because IL-7R was a plausible candidate for driving the homeostatic response of Tregs to anti-CD3, we tested its relevance by supplementation of anti-CD3 treatment with IL-7/anti-IL-7 complexes. Although ineffective alone, IL-7 significantly improved the rate of remission induced by anti-CD3. Four anti-human CD3 mAbs exhibited the same differential effect on IL-7R expression in human as in mouse cells, suggesting that the mechanism also underlies therapeutic effect in human cells, and perhaps a rationale for testing a combination of anti-CD3 and IL-7 for the treatment of recent-onset human type 1 diabetes. Thus, systems-level analysis of the response to anti-CD3 in the early phase of the treatment demonstrates different responses in Tregs and Tconvs, and provides new leads to a mechanistic understanding of its mechanism of action in reverting recent-onset diabetes.
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MESH Headings
- Animals
- Antibodies, Monoclonal/immunology
- Antibodies, Monoclonal/metabolism
- Antibodies, Monoclonal/pharmacology
- CD3 Complex/immunology
- CD3 Complex/metabolism
- CD4-Positive T-Lymphocytes/drug effects
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/metabolism
- Cells, Cultured
- Drug Synergism
- Gene Expression Regulation/drug effects
- Humans
- Interleukin-7/pharmacology
- Mice
- Mice, Transgenic
- Protein Binding
- Receptors, Interleukin-7/genetics
- Receptors, Interleukin-7/metabolism
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
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Affiliation(s)
- Li Li
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Junko Nishio
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - André van Maurik
- Immuno Inflammation, GlaxoSmithKline, Stevenage, SG1 2NY, United Kingdom
| | - Diane Mathis
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Christophe Benoist
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
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40
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Wu X, Satpathy AT, KC W, Liu P, Murphy TL, Murphy KM. Bcl11a controls Flt3 expression in early hematopoietic progenitors and is required for pDC development in vivo. PLoS One 2013; 8:e64800. [PMID: 23741395 PMCID: PMC3669380 DOI: 10.1371/journal.pone.0064800] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [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: 12/04/2012] [Accepted: 04/17/2013] [Indexed: 12/14/2022] Open
Abstract
Bcl11a is a transcription factor known to regulate lymphoid and erythroid development. Recent bioinformatic analysis of global gene expression patterns has suggested a role for Bcl11a in the development of dendritic cell (DC) lineages. We tested this hypothesis by analyzing the development of DC and other lineages in Bcl11a−/− mice. We found that Bcl11a was required for expression of IL-7 receptor (IL-7R) and Flt3 in early hematopoietic progenitor cells. In addition, we found severely decreased numbers of plasmacytoid dendritic cells (pDCs) in Bcl11a−/− fetal livers and in the bone marrow of Bcl11a−/− fetal liver chimeras. Moreover, Bcl11a−/− cells showed severely impaired in vitro development of Flt3L-derived pDCs and classical DCs (cDCs). In contrast, we found normal in vitro development of DCs from Bcl11a−/− fetal liver cells treated with GM-CSF. These results suggest that the persistent cDC development observed in Bcl11a−/− fetal liver chimeras reflects derivation from a Bcl11a- and Flt3-independent pathway in vivo.
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Affiliation(s)
- Xiaodi Wu
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Ansuman T. Satpathy
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Wumesh KC
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Pentao Liu
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom
| | - Theresa L. Murphy
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, United States of America
| | - Kenneth M. Murphy
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, United States of America
- Howard Hughes Medical Institute, Washington University School of Medicine, St. Louis, Missouri, United States of America
- * E-mail:
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41
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Tal N, Shochat C, Geron I, Bercovich D, Izraeli S. Interleukin 7 and thymic stromal lymphopoietin: from immunity to leukemia. Cell Mol Life Sci 2013; 71:365-78. [PMID: 23625073 DOI: 10.1007/s00018-013-1337-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 03/10/2013] [Accepted: 04/08/2013] [Indexed: 01/12/2023]
Abstract
Cancer is often caused by deregulation of normal developmental processes. Here, we review recent research on the aberrant activation of two hematopoietic cytokine receptors in acute lymphoid leukemias. Somatic events in the genes for thymic stromal lymphopoietin and Interleukin 7 receptors as well as in their downstream JAK kinases result in constitutive ligand-independent activation of survival and proliferation in B and T lymphoid precursors. Drugs targeting these receptors or the signaling pathways might provide effective therapies of these leukemias.
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Affiliation(s)
- Noa Tal
- Cancer Research Center, Sheba Medical Center, Edmond and Lily Safra Children's Hospital, Tel Hashomer, 52621, Ramat Gan, Israel
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42
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Plumb AW, Patton DT, Seo JH, Loveday EK, Jean F, Ziegler SF, Abraham N. Interleukin-7, but not thymic stromal lymphopoietin, plays a key role in the T cell response to influenza A virus. PLoS One 2012. [PMID: 23189186 PMCID: PMC3506535 DOI: 10.1371/journal.pone.0050199] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [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] [Indexed: 11/19/2022] Open
Abstract
The immune response to viral infection is ideally rapid and specific, resulting in viral clearance and establishment of immune memory. Some viruses such as HIV can evade such responses leading to chronic infection, while others like Influenza A can elicit a severe inflammatory response with immune-related complications including death. Cytokines play a major role in shaping the appropriate outcomes to infection. While Interleukin-7 (IL-7) has a critical role in T and B cell development, treatment with IL-7 has recently been shown to aid the adaptive T cell response in clearance of chronic viral infection. In contrast, the IL-7-related cytokine thymic stromal lymphopoietin (TSLP) has a limited role in lymphocyte development but is important in the immune response to parasitic worms and allergens. The role for these cytokines in the immune response to an acute viral infection is unclear. IL-7 and TSLP share IL-7Rα as part of their heterodimeric receptors with the gamma common chain (γc) and TSLPR, respectively. We investigated the role of IL-7 and TSLP in the primary immune response to influenza A infection using hypomorphic IL-7Rα (IL-7Rα449F) and TSLPR−/− mice. We found that IL-7, but not TSLP, plays an important role in control of influenza A virus. We also showed that IL-7 signaling was necessary for the generation of a robust influenza A-specific CD4 and CD8 T cell response and that this requirement is intrinsic to CD8 T cells. These findings demonstrate a significant role for IL-7 during acute viral infection.
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Affiliation(s)
- Adam W. Plumb
- Infection, Inflammation and Immunity Research Group, Department of Microbiology & Immunology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Daniel T. Patton
- Infection, Inflammation and Immunity Research Group, Department of Microbiology & Immunology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jung Hee Seo
- Infection, Inflammation and Immunity Research Group, Department of Microbiology & Immunology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Emma-Kate Loveday
- Infection, Inflammation and Immunity Research Group, Department of Microbiology & Immunology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - François Jean
- Infection, Inflammation and Immunity Research Group, Department of Microbiology & Immunology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Steven F. Ziegler
- Immunology Program, Benaroya Research Institute, Seattle, Washington, United States of America
| | - Ninan Abraham
- Infection, Inflammation and Immunity Research Group, Department of Microbiology & Immunology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Zoology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
- * E-mail:
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43
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Han D, Zhang M, Ma J, Hong J, Chen C, Zhang B, Huang L, Lv W, Yin L, Zhang A, Zhang H, Zhang Z, Vidyasagar S, Okunieff P, Zhang L. Transition pattern and mechanism of B-lymphocyte precursors in regenerated mouse bone marrow after subtotal body irradiation. PLoS One 2012; 7:e46560. [PMID: 23082125 PMCID: PMC3474760 DOI: 10.1371/journal.pone.0046560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 06/06/2012] [Accepted: 08/31/2012] [Indexed: 12/31/2022] Open
Abstract
Little is known about the effects of ionizing radiation on the transition and the related signal transduction of progenitor B cells in the bone marrow. Thus, using an NIH Swiss mouse model, we explored the impact of ionizing radiation on the early stage of B-cell development via an examination of the transition of CLP to pro-B to pre-B cells within bone marrow as a function of radiation doses and times. Our results showed that while the total number of bone marrow lymphoid cells at different stages were greatly reduced by subtotal body irradiation (sub-TBI), the surviving cells continued to transition from common lymphoid progenitors to pro-B and then to pre-B in a reproducible temporal pattern. The rearrangement of the immunoglobulin heavy chain increased significantly 1-2 weeks after irradiation, but no change occurred after 3-4 weeks. The rearrangement of the immunoglobulin light chain decreased significantly 1-2 weeks after sub-TBI but increased dramatically after 3-4 weeks. In addition, several key transcription factors and signaling pathways were involved in B-precursor transitions after sub-TBI. The data indicate that week 2 after irradiation is a critical time for the transition from pro-B cells to pre-B cells, reflecting that the functional processes for different B-cell stages are well preserved even after high-dose irradiation.
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Affiliation(s)
- Deping Han
- First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
- * E-mail: (DH); (LZ)
| | - Mei Zhang
- Department of Radiation Oncology, UF Shands Cancer Center, Gainesville, Florida, United States of America
| | - Jun Ma
- Institute of Digestive Diseases, Zhengzhou University, Henan, China
| | - Jingshen Hong
- First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Chun Chen
- First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Bingrong Zhang
- Department of Radiation Oncology, UF Shands Cancer Center, Gainesville, Florida, United States of America
| | - Luqiang Huang
- Department of Radiation Oncology, UF Shands Cancer Center, Gainesville, Florida, United States of America
| | - Wenlong Lv
- First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Liangjie Yin
- Department of Radiation Oncology, UF Shands Cancer Center, Gainesville, Florida, United States of America
| | - Amy Zhang
- Department of Radiation Oncology, UF Shands Cancer Center, Gainesville, Florida, United States of America
| | - Hengshan Zhang
- First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Zhenhuan Zhang
- Department of Radiation Oncology, UF Shands Cancer Center, Gainesville, Florida, United States of America
| | - Sadasivan Vidyasagar
- Department of Radiation Oncology, UF Shands Cancer Center, Gainesville, Florida, United States of America
| | - Paul Okunieff
- Department of Radiation Oncology, UF Shands Cancer Center, Gainesville, Florida, United States of America
| | - Lurong Zhang
- Department of Radiation Oncology, UF Shands Cancer Center, Gainesville, Florida, United States of America
- * E-mail: (DH); (LZ)
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44
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Moret FM, Badot V, Lauwerys BR, van Roon JAG. Intraarticular soluble interleukin-7 [corrected] receptor levels are increased in patients with rheumatoid arthritis and correlate with local mediators of inflammation: comment on the article by Pickens et al. ACTA ACUST UNITED AC 2012; 64:594-5; author reply 595-6. [PMID: 21953413 DOI: 10.1002/art.33373] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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45
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Abstract
No unique transcription factor or biomarker has been identified to reliably distinguish effector from memory T cells. Instead a set of surface markers including IL-7Rα and KLRG1 is commonly used to predict the potential of CD8 effector T cells to differentiate into memory cells. Similarly, these surface markers together with the tumor necrosis factor family member CD27 are frequently used to predict a memory T cell's ability to mount a recall response. Expression of these markers changes every time a memory cell is stimulated and repeated stimulation can lead to T cell senescence and loss of memory T cell responsiveness. This is a concern for prime–boost vaccine strategies which repeatedly stimulate T cells with the aim of increasing memory T cell frequency. The molecular cues that cause senescence are still unknown, but cell division history is likely to play a major role. We sought to dissect the roles of inflammation and cell division history in developing T cell senescence and their impact on the expression pattern of commonly used markers of senescence. We developed a system that allows priming of CD8 T cells with minimal inflammation and without acquisition of maximal effector function, such as granzyme expression, but a cell division history similar to priming with systemic inflammation. Memory cells derived from minimal effector T cells are fully functional upon rechallenge, have full access to non-lymphoid tissue and appear to be less senescent by phenotype upon rechallenge. However, we report here that these currently used biomarkers to measure senescence do not predict proliferative potential or protective ability, but merely reflect initial priming conditions.
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Affiliation(s)
- Martin Prlic
- Department of Immunology and Howard Hughes Medical Institute, University of Washington, Seattle, Washington, United States of America
- * E-mail: (MP); (MJB)
| | | | - Michael J. Bevan
- Department of Immunology and Howard Hughes Medical Institute, University of Washington, Seattle, Washington, United States of America
- * E-mail: (MP); (MJB)
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46
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Shalapour S, Deiser K, Kühl AA, Glauben R, Krug SM, Fischer A, Sercan Ö, Chappaz S, Bereswill S, Heimesaat MM, Loddenkemper C, Fromm M, Finke D, Hämmerling GJ, Arnold B, Siegmund B, Schüler T. Interleukin-7 links T lymphocyte and intestinal epithelial cell homeostasis. PLoS One 2012; 7:e31939. [PMID: 22384106 PMCID: PMC3288069 DOI: 10.1371/journal.pone.0031939] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [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: 09/02/2011] [Accepted: 01/19/2012] [Indexed: 01/01/2023] Open
Abstract
Interleukin-7 (IL-7) is a major survival factor for mature T cells. Therefore, the degree of IL-7 availability determines the size of the peripheral T cell pool and regulates T cell homeostasis. Here we provide evidence that IL-7 also regulates the homeostasis of intestinal epithelial cells (IEC), colon function and the composition of the commensal microflora. In the colon of T cell-deficient, lymphopenic mice, IL-7-producing IEC accumulate. IEC hyperplasia can be blocked by IL-7-consuming T cells or the inactivation of the IL-7/IL-7R signaling pathway. However, the blockade of the IL-7/IL-7R signaling pathway renders T cell-deficient mice more sensitive to chemically-induced IEC damage and subsequent colitis. In summary, our data demonstrate that IL-7 promotes IEC hyperplasia under lymphopenic conditions. Under non-lymphopenic conditions, however, T cells consume IL-7 thereby limiting IEC expansion and survival. Hence, the degree of IL-7 availability regulates both, T cell and IEC homeostasis.
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Affiliation(s)
- Shabnam Shalapour
- Institute of Immunology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Katrin Deiser
- Institute of Immunology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Anja A. Kühl
- Institute of Pathology/Research Center ImmunoSciences, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Rainer Glauben
- Department of Gastroenterology, Infectiology and Rheumatology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Susanne M. Krug
- Institute of Clinical Physiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - André Fischer
- Institute of Microbiology and Hygiene, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Özen Sercan
- Institute of Immunology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
- Department of Molecular Immunology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg, Germany
| | - Stephane Chappaz
- Department of Biomedicine, Division of Developmental Immunology, University of Basel, Basel, Switzerland
| | - Stefan Bereswill
- Institute of Microbiology and Hygiene, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Markus M. Heimesaat
- Institute of Microbiology and Hygiene, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Christoph Loddenkemper
- Institute of Pathology/Research Center ImmunoSciences, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Michael Fromm
- Institute of Clinical Physiology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Daniela Finke
- Department of Biomedicine, Division of Developmental Immunology, University of Basel, Basel, Switzerland
| | - Günter J. Hämmerling
- Department of Molecular Immunology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg, Germany
| | - Bernd Arnold
- Department of Molecular Immunology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg, Germany
| | - Britta Siegmund
- Department of Gastroenterology, Infectiology and Rheumatology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Thomas Schüler
- Institute of Immunology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
- Department of Molecular Immunology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg, Germany
- * E-mail:
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47
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Yan Y, Wang YH, Diamond B. IL-6 contributes to an immune tolerance checkpoint in post germinal center B cells. J Autoimmun 2011; 38:1-9. [PMID: 22154464 DOI: 10.1016/j.jaut.2011.09.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [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: 08/10/2011] [Revised: 09/15/2011] [Accepted: 09/17/2011] [Indexed: 11/18/2022]
Abstract
The generation of a B cell repertoire involves producing and subsequently purging autoreactive B cells. Receptor editing, clonal deletion and anergy are key mechanisms of central B cell tolerance. Somatic mutation of antigen-activated B cells within the germinal center produces a second wave of autoreactivity; but the regulatory mechanisms that operate at this phase of B cell activation are poorly understood. We recently identified a post germinal center tolerance checkpoint, where receptor editing is re-induced to extinguish autoreactivity that is generated by somatic hypermutation. Re-induction of the recombinase genes RAG1 and RAG2 in antigen-activated B cells requires antigen to engage the B cell receptor and IL-7 to signal through the IL-7 receptor. We demonstrate that this process requires IL-6 to upregulate IL-7 receptor expression on post germinal center B cells. Diminishing IL-6 by blocking antibody or haplo-insufficiency leads to reduced expression of the IL-7 receptor and RAG and increased titers of anti-DNA antibodies following immunization with a peptide mimetope of DNA. The dependence on IL-6 to initiate receptor editing is B cell intrinsic. Interestingly, estradiol decreases IL-6 expression thereby increasing the anti-DNA response. Our data reveal a novel regulatory cascade to control post germinal center B cell autoreactivity.
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MESH Headings
- Animals
- Antibodies, Antinuclear/blood
- Antibodies, Antinuclear/immunology
- Antibodies, Blocking/pharmacology
- B-Lymphocytes/drug effects
- B-Lymphocytes/immunology
- B-Lymphocytes/metabolism
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/immunology
- DNA-Binding Proteins/metabolism
- Estrogens/pharmacology
- Female
- Gene Expression/drug effects
- Germinal Center/cytology
- Germinal Center/immunology
- Germinal Center/metabolism
- Heterozygote
- Homeodomain Proteins/genetics
- Homeodomain Proteins/immunology
- Homeodomain Proteins/metabolism
- Immune Tolerance/immunology
- Immunization
- Immunohistochemistry
- Interleukin-6/genetics
- Interleukin-6/immunology
- Interleukin-6/metabolism
- Male
- Mice
- Mice, 129 Strain
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout
- Oligopeptides/immunology
- Receptors, Interleukin-7/genetics
- Receptors, Interleukin-7/immunology
- Receptors, Interleukin-7/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
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Affiliation(s)
- Yi Yan
- The Center for Autoimmune and Musculoskeletal Disease, The Feinstein Institute for Medical Research, North Shore-LIJ Health System, Manhasset, NY 11030, USA
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48
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Okuyama K, Murata A, Sudo T, Yoshino M, Hayashi SI. A checkpoint in B-lymphopoiesis related to Notch resistance. Biochem Biophys Res Commun 2011; 417:141-6. [PMID: 22138652 DOI: 10.1016/j.bbrc.2011.11.072] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Accepted: 11/15/2011] [Indexed: 12/29/2022]
Abstract
While murine B- and T-lymphopoiesis require overlapping molecules, they occur in separate organs: the bone marrow (BM) and the thymus, respectively. The BM microenvironment is incapable of supporting T-lymphopoiesis because of insufficient interactions of Notch1 with delta-like ligand (Dll). Notch1/Dll interactions also play a role in the suppression of B-lymphopoiesis in the thymus. However, it is still unclear whether the Notch1/Dll interaction alone explains why the thymus does not support B-lymphopoiesis. In this study, we compared the precursor population colonizing the thymus with that in the BM by culturing them on stromal cells expressing abundant Dll1. We demonstrated that Flt3(+) Il7r(+) B220(+) Cd19(+) BM cells gave rise to B cells under this condition. We defined them as resistant to Dll1. In the thymus, Dll1-resistant cells were undetectable. This suggested that the absence of Dll1-resistant cells might explain the absence of B-lymphopoiesis in the thymus.
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Affiliation(s)
- Kazuki Okuyama
- Division of Immunology, Department of Molecular and Cellular Biology, School of Life Science, Faculty of Medicine, Tottori University, Yonago, Tottori, Japan.
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49
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Gonzalez-Quintial R, Lawson BR, Scatizzi JC, Craft J, Kono DH, Baccala R, Theofilopoulos AN. Systemic autoimmunity and lymphoproliferation are associated with excess IL-7 and inhibited by IL-7Rα blockade. PLoS One 2011; 6:e27528. [PMID: 22102903 PMCID: PMC3213145 DOI: 10.1371/journal.pone.0027528] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [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: 01/25/2011] [Accepted: 10/19/2011] [Indexed: 11/24/2022] Open
Abstract
Lupus is characterized by disturbances in lymphocyte homeostasis, as demonstrated by the marked accumulation of activated/memory T cells. Here, we provide evidence that proliferation of the CD8+ precursors for the accumulating CD4–CD8– T cells in MRL-Faslpr lupus-predisposed mice is, in part, driven by commensal antigens. The ensuing lymphadenopathy is associated with increased production of IL-7 due to expansion of fibroblastic reticular cells, the primary source of this cytokine. The excess IL-7 is not, however, consumed by CD4–CD8– T cells due to permanent down-regulation of IL-7Rα (CD127), but instead supports proliferation of autoreactive T cells and progression of autoimmunity. Accordingly, IL-7R blockade reduced T cell activation and autoimmune manifestations even when applied at advanced disease stage. These findings indicate that an imbalance favoring production over consumption of IL-7 may contribute to systemic autoimmunity, and correction of this imbalance may be a novel therapeutic approach in lymphoproliferative and autoimmune syndromes.
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Affiliation(s)
- Rosana Gonzalez-Quintial
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California, United States of America
| | - Brian R. Lawson
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California, United States of America
| | - John C. Scatizzi
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California, United States of America
| | - Joseph Craft
- Department of Immunobiology and Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Dwight H. Kono
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California, United States of America
| | - Roberto Baccala
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California, United States of America
- * E-mail: (RB); (ANT)
| | - Argyrios N. Theofilopoulos
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, California, United States of America
- * E-mail: (RB); (ANT)
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50
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Stephens R, Seddon B, Langhorne J. Homeostatic proliferation and IL-7R alpha expression do not correlate with enhanced T cell proliferation and protection in chronic mouse malaria. PLoS One 2011; 6:e26686. [PMID: 22039531 PMCID: PMC3198788 DOI: 10.1371/journal.pone.0026686] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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: 03/17/2011] [Accepted: 10/02/2011] [Indexed: 12/25/2022] Open
Abstract
While chronic infection has been shown to enhance protection from disease caused by several pathogens, the mechanisms are not known. The gamma-c family of cytokines IL-7, IL-2, and IL-15 are implicated in homeostatic proliferation, which is thought to maintain T cell memory. However in chronic infection, prolonged antigen exposure itself may contribute to lymphocyte survival. We have previously observed that chronic malaria infection enhances protection to re-infection, as well as enhancing B cell responses. Here, we show that chronic Plasmodium chabaudi malaria infection in mice enhances the expansion of CD4+ T cells in a second infection, and that this correlates with increased expression of the IL-2/15 Receptor beta (CD122) on memory T cells, as well as increasing IL-2 producers on re-infection. IL-2 has been recently linked to improved secondary proliferation, while the role of IL-7 in maintenance of CD4+ memory cells has been demonstrated in homeostatic proliferation, but its role in protective memory populations in infectious disease protective has not been fully investigated. Increased IL-7Rα (CD127) expression correlated, as previously reported with increased turnover of CD4 memory cells, however, this was not linked to protection or enhanced response to rechallenge, These data support the idea that antigen or IL-2 production resulting from chronic stimulation may play a role in an enhanced secondary T cell response.
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Affiliation(s)
- Robin Stephens
- Division of Parasitology, MRC National Institute for Medical Research, The Ridgeway, Mill Hill, London, United Kingdom
| | - Benedict Seddon
- Division of Immune Cell Biology, MRC National Institute for Medical Research, The Ridgeway, Mill Hill, London, United Kingdom
| | - Jean Langhorne
- Division of Parasitology, MRC National Institute for Medical Research, The Ridgeway, Mill Hill, London, United Kingdom
- * E-mail:
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