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Feng J, Wu Y. Interleukin-35 ameliorates cardiovascular disease by suppressing inflammatory responses and regulating immune homeostasis. Int Immunopharmacol 2022; 110:108938. [PMID: 35759811 DOI: 10.1016/j.intimp.2022.108938] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/05/2022] [Accepted: 06/07/2022] [Indexed: 12/14/2022]
Abstract
The immune response is of great significance in the initiation and progression of a diversity of cardiovascular diseases involving pro-and anti-inflammatory cytokines. Interleukin-35 (IL-35), a cytokine of the interleukin-12 family, is a novel anti-inflammation and immunosuppressive cytokine, maintaining inflammatory suppression and regulating immune homeostasis. The role of IL-35 in cardiovascular diseases (CVDs) has aroused enthusiastic attention, a diversity of experimental or clinical evidence has indicated that IL-35 potentially has a pivot role in protecting against cardiovascular diseases, especially atherosclerosis and myocarditis. In this review, we initiate an overview of the relationship between Interleukin-35 and cardiovascular diseases, including atherosclerosis, acute coronary syndrome, pulmonary hypertension, abdominal aortic aneurysm, heart failure, myocardial ischemia-reperfusion, aortic dissection and myocarditis. Although the specific molecular mechanisms entailing the protective effects of IL-35 remain an unsolved issue, targeted therapies with IL-35 might provide a promising and effective solution to prevent and cure cardiovascular diseases.
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Affiliation(s)
- Jie Feng
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Yanqing Wu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
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2
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Arnett A, Moo KG, Flynn KJ, Sundberg TB, Johannessen L, Shamji AF, Gray NS, Decker T, Zheng Y, Gersuk VH, Rahman ZS, Levy DE, Marié IJ, Linsley PS, Xavier RJ, Khor B. The Cyclin-Dependent Kinase 8 (CDK8) Inhibitor DCA Promotes a Tolerogenic Chemical Immunophenotype in CD4 + T Cells via a Novel CDK8-GATA3-FOXP3 Pathway. Mol Cell Biol 2021; 41:e0008521. [PMID: 34124936 PMCID: PMC8384069 DOI: 10.1128/mcb.00085-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/07/2021] [Accepted: 06/02/2021] [Indexed: 11/20/2022] Open
Abstract
Immune health requires innate and adaptive immune cells to engage precisely balanced pro- and anti-inflammatory forces. We employ the concept of chemical immunophenotypes to classify small molecules functionally or mechanistically according to their patterns of effects on primary innate and adaptive immune cells. The high-specificity, low-toxicity cyclin-dependent kinase 8 (CDK8) inhibitor 16-didehydro-cortistatin A (DCA) exerts a distinct tolerogenic profile in both innate and adaptive immune cells. DCA promotes regulatory T cells (Treg) and Th2 differentiation while inhibiting Th1 and Th17 differentiation in both murine and human cells. This unique chemical immunophenotype led to mechanistic studies showing that DCA promotes Treg differentiation in part by regulating a previously undescribed CDK8-GATA3-FOXP3 pathway that regulates early pathways of Foxp3 expression. These results highlight previously unappreciated links between Treg and Th2 differentiation and extend our understanding of the transcription factors that regulate Treg differentiation and their temporal sequencing. These findings have significant implications for future mechanistic and translational studies of CDK8 and CDK8 inhibitors.
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Affiliation(s)
- Azlann Arnett
- Benaroya Research Institute, Seattle, Washington, USA
| | - Keagan G. Moo
- Benaroya Research Institute, Seattle, Washington, USA
| | | | - Thomas B. Sundberg
- Center for the Science of Therapeutics, Broad Institute, Cambridge, Massachusetts, USA
| | - Liv Johannessen
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
| | - Alykhan F. Shamji
- Center for the Science of Therapeutics, Broad Institute, Cambridge, Massachusetts, USA
| | - Nathanael S. Gray
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
| | - Thomas Decker
- Max Perutz Labs, University of Vienna, Vienna, Austria
| | - Ye Zheng
- NOMIS Center for Immunobiology and Microbial Pathogenesis, Salk Institute for Biological Studies, La Jolla, California, USA
| | | | - Ziaur S. Rahman
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA
| | - David E. Levy
- Department of Pathology, New York University School of Medicine, New York, New York, USA
| | - Isabelle J. Marié
- Department of Pathology, New York University School of Medicine, New York, New York, USA
| | | | - Ramnik J. Xavier
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- The Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, Massachusetts, USA
| | - Bernard Khor
- Benaroya Research Institute, Seattle, Washington, USA
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León B, Ballesteros-Tato A. Modulating Th2 Cell Immunity for the Treatment of Asthma. Front Immunol 2021; 12:637948. [PMID: 33643321 PMCID: PMC7902894 DOI: 10.3389/fimmu.2021.637948] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 01/21/2021] [Indexed: 12/14/2022] Open
Abstract
It is estimated that more than 339 million people worldwide suffer from asthma. The leading cause of asthma development is the breakdown of immune tolerance to inhaled allergens, prompting the immune system's aberrant activation. During the early phase, also known as the sensitization phase, allergen-specific T cells are activated and become central players in orchestrating the subsequent development of allergic asthma following secondary exposure to the same allergens. It is well-established that allergen-specific T helper 2 (Th2) cells play central roles in developing allergic asthma. As such, 80% of children and 60% of adult asthma cases are linked to an unwarranted Th2 cell response against respiratory allergens. Thus, targeting essential components of Th2-type inflammation using neutralizing antibodies against key Th2 modulators has recently become an attractive option for asthmatic patients with moderate to severe symptoms. In addition to directly targeting Th2 mediators, allergen immunotherapy, also known as desensitization, is focused on redirecting the allergen-specific T cells response from a Th2-type profile to a tolerogenic one. This review highlights the current understanding of the heterogeneity of the Th2 cell compartment, their contribution to allergen-induced airway inflammation, and the therapies targeting the Th2 cell pathway in asthma. Further, we discuss available new leads for successful targeting pulmonary Th2 cell responses for future therapeutics.
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Affiliation(s)
- Beatriz León
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Andre Ballesteros-Tato
- Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
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Chen J, Guan L, Tang L, Liu S, Zhou Y, Chen C, He Z, Xu L. T Helper 9 Cells: A New Player in Immune-Related Diseases. DNA Cell Biol 2019; 38:1040-1047. [PMID: 31414895 PMCID: PMC6791470 DOI: 10.1089/dna.2019.4729] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The helper T cell 9 (Thelper-9, Th9), as a functional subgroup of CD4+T cells, was first discovered in 2008. Th9 cells expressed transcription factor PU.1 and cytokine interleukin-9 (IL-9) characteristically. Recent researches have shown that the differentiation of Th9 cells was coregulated by cytokine transforming growth factor β, IL-4, and various transcription factors. Th9 cells, as a new player, played an important role in various immune-related diseases, including tumors, inflammatory diseases, parasite infection, and other diseases. In this article, we summarize the related research progress and discuss the possible prospect.
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Affiliation(s)
- Jing Chen
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, Guizhou, China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Lian Guan
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, Guizhou, China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Lin Tang
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, Guizhou, China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Shiming Liu
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, Guizhou, China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Ya Zhou
- Department of Medical Physics, Zunyi Medical University, Zunyi, Guizhou, China
| | - Chao Chen
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, Guizhou, China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Zhixu He
- Key Laboratory of Adult Stem Cell Transformation Research, Chinese Academy of Medical Sciences, Zunyi, Guizhou, China
- Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Lin Xu
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, Guizhou, China
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou, China
- Address correspondence to: Lin Xu, PhD, Department of Immunology, Zunyi Medical University, Zunyi 563003, Guizhou, China
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Kulis MD, Patil SU, Wambre E, Vickery BP. Immune mechanisms of oral immunotherapy. J Allergy Clin Immunol 2017; 141:491-498. [PMID: 29288078 DOI: 10.1016/j.jaci.2017.12.979] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 11/30/2017] [Accepted: 12/06/2017] [Indexed: 10/18/2022]
Abstract
Oral immunotherapy (OIT) has demonstrated reproducibly successful desensitization in patients with food allergy completing clinical trials and, in some studies, sustained unresponsiveness. These clinical outcomes have been associated with characteristic modifications in the allergen-specific immune response, but a detailed synthesis of OIT's mechanisms of action is lacking. In this rostrum we review the current evidence regarding the human immune response to OIT, explore possible mechanisms, and identify knowledge gaps for future research.
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Affiliation(s)
- Michael D Kulis
- Department of Pediatrics, University of North Carolina, Chapel Hill, NC
| | - Sarita U Patil
- Department of Pediatrics, Massachusetts General Hospital, Boston, Mass
| | - Erik Wambre
- Department of Immunology, Benaroya Research Institute, Seattle, Wash
| | - Brian P Vickery
- Department of Pediatrics, University of North Carolina, Chapel Hill, NC.
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Abstract
PURPOSE OF REVIEW The aims of this review are to discuss the impact of chronic high-dose allergen exposure on allergen-specific CD4(+) T-cell subset during allergen-specific immunotherapy (AIT) and discuss recent advances supporting novel mechanisms for desensitization and tolerance induction during AIT. (Figure is included in full-text article.) RECENT FINDINGS New technologies for direct molecular and cellular analysis have now provided an unprecedented opportunity to compare the functions and phenotypes of allergen-specific T cells at a single cell level, both in the context of disease and clinical intervention. Recent studies have demonstrated that AIT may restore tolerance by transiently inducing interleukin (IL)-10 producing T cells followed by selective deletion of allergen-specific TH2 cell subset. SUMMARY With antigen-specific TH2 cells at the core of the allergic process in atopic individuals, the duration and dose of antigen exposure can be the driving force behind current AIT protocol. Mechanisms modulating allergen-specific CD4(+) T-cell responses may include autocrine IL-10 production to limit excessive TH2 cell effector responses, T-cell exhaustion, and preferential proallergic TH2 cell deletion allowing concurrent downregulating T-cell responses to emerge. Administration of AIT in the context of immune modulating strategies able to induce counter-regulatory immune response may lead to improved AIT with durable clinical benefit.
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El Samahy MH, Attia EAS, Saad AA, Mahmoud EY. Circulating CD4(+) CD25(high) FoxP3(+) T-regulatory cells in patients with atopic dermatitis after narrowband-ultraviolet B phototherapy. Int J Dermatol 2015. [PMID: 26219909 DOI: 10.1111/ijd.12801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Previous studies showed controversial results regarding CD4(+) CD25(high) FoxP3(+) T-regulatory cells (Tregs) in atopic dermatitis (AD) and effect of therapy. METHODS Circulating CD4(+) CD25(high) FoxP3(+) Tregs were assessed by flow cytometry in 20 controls and 20 patients with AD at baseline and after narrowband ultraviolet B with assessment of disease severity. RESULTS Patients showed higher pretreatment T-effector cells (Teffs) (%) and lower pretreatment Tregs FoxP3 expression% than controls (P = 0.003 and 0.01, respectively). Mild AD showed a lower Tregs/Teffs ratio compared to controls (P = 0.013), while moderate group showed higher Teffs%, and lower Tregs FoxP3 expression% and Tregs/Teffs compared to controls (P = 0.016, 0.007, and 0.009 respectively). The severe group had higher Tregs% and Teffs%, yet with a lower Tregs FoxP3 expression% compared to controls (P < 0.001, P = 0.043, P = 0.044, respectively). There was significant reduction of severity after narrowband ultraviolet B (P = 0.007), with overall significant elevation of Tregs FoxP3 expression% in patients (P = 0.004). All patients' post-treatment laboratory findings were statistically matched to each other and to controls whatever their previous severity or therapeutic response. The improvement of severity score correlated with the change in both Tregs% and Tregs/Teffs. CONCLUSIONS Significant reduction in AD disease severity is correlated with the change in Tregs% and Tregs/Teffs.
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Affiliation(s)
- May H El Samahy
- Department of Dermatology, Venereology, and Andrology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Enas A S Attia
- Department of Dermatology, Venereology, and Andrology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Abeer A Saad
- Department of Clinical Pathology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Eman Y Mahmoud
- Department of Dermatology, Venereology, and Andrology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Henderson JG, Opejin A, Jones A, Gross C, Hawiger D. CD5 instructs extrathymic regulatory T cell development in response to self and tolerizing antigens. Immunity 2015; 42:471-83. [PMID: 25786177 DOI: 10.1016/j.immuni.2015.02.010] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 11/17/2014] [Accepted: 02/20/2015] [Indexed: 12/26/2022]
Abstract
Self-reactive T cells can escape thymic deletion and therefore some of these potentially autoaggressive T cells need to convert into regulatory T (Treg) cells to help control responses against self. However, it remains unknown how peripheral self-reactive T cells are specifically instructed to become Treg cells. We report that CD5, whose expression is upregulated in T cells by self and tolerizing antigens in the thymus and periphery, governed extrathymic Treg cell development. CD5 modified effector cell-differentiating signals that inhibit Treg cell induction. Treg cell conversion of Cd5(-/-) and CD5(lo) T cells was inhibited by even small amounts of interleukin-4 (IL-4), IL-6, and interferon-γ (IFN-γ) produced by bystander lymphocytes, while CD5(hi) T cells resisted this inhibition of Treg cell induction. Our findings further revealed that CD5 promoted Treg cell induction by blocking mechanistic target of rapamycin (mTOR) activation. Therefore CD5 instructs extrathymic Treg cell development in response to self and tolerizing antigens.
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Affiliation(s)
- Jacob G Henderson
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Adeleye Opejin
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Andrew Jones
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Cindy Gross
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Daniel Hawiger
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, USA.
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9
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Chen N, Wang X. Role of IL-9 and STATs in hematological malignancies (Review). Oncol Lett 2013; 7:602-610. [PMID: 24520283 PMCID: PMC3919939 DOI: 10.3892/ol.2013.1761] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 12/09/2013] [Indexed: 02/03/2023] Open
Abstract
Although interleukin-9 (IL-9) exhibits pleiotropic functions in the immune system, it remains a well-known cytokine in hematological malignancies. Previous cell culture and animal model studies have revealed that the Janus kinase-signal transducer and activator of transcription signaling pathway, which may be activated by a number of cytokines including IL-9, is critical in hematological malignancies. The current review summarizes the characterization of the biological activities of IL-9, highlights the clearly defined roles of the cytokine, and outlines questions with regard to the functions of IL-9 that require further exploration and their downstream signaling proteins, signal transducers and activators of transcription.
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Affiliation(s)
- Na Chen
- Department of Hematology, Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
| | - Xin Wang
- Department of Hematology, Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China ; Department of Diagnostics, Shandong University School of Medicine, Jinan, Shandong 250012, P.R. China
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10
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Suárez-Fueyo A, Ramos T, Galán A, Jimeno L, Wurtzen PA, Marin A, de Frutos C, Blanco C, Carrera AC, Barber D, Varona R. Grass tablet sublingual immunotherapy downregulates the TH2 cytokine response followed by regulatory T-cell generation. J Allergy Clin Immunol 2013; 133:130-8.e1-2. [PMID: 24290282 DOI: 10.1016/j.jaci.2013.09.043] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 09/12/2013] [Accepted: 09/26/2013] [Indexed: 01/08/2023]
Abstract
BACKGROUND Sublingual administration of Phleum pratense allergen immunotherapy (SLIT) tablets is a clinically efficient treatment for grass pollen-induced rhinoconjunctivitis. This immunotherapy downregulates TH2 immune responses, induces tolerogenic pathways, and increases regulatory T cells. However, associated immune response markers of allergen desensitization remain undefined. OBJECTIVE We sought to characterize the kinetics of individual changes in the immunologic response to grass tablet SLIT. METHODS We evaluated the systemic effects of SLIT in a longitudinal analysis of humoral and cellular immune parameters in peripheral blood samples. RESULTS Grass tablet SLIT administration induced a 2-phase systemic humoral and cellular response. The TH2 response was initially exacerbated and detected as increased allergen-specific IgE (sIgE) and IgG4 (sIgG4) levels and an increase in IL-4-producing cells, followed by downregulation of the TH2 response with a shift toward a TH1 cytokine profile. T cells with a regulatory phenotype were also elicited. Statistical correlations between immunologic measurements for each patient throughout therapy indicated that TH2 response downregulation and reduction of the immediate SLIT-induced IgE response were associated with increased allergen-specific IgG4 synthesis early in therapy. TH2 response downregulation by month 4 correlated with increased frequency of CD4(+) T cells with a regulatory phenotype by 12 months. CONCLUSION Changes in sIgE levels after therapy were linked to a specific IgG4 response, and production of blocking antibodies correlated with TH2 response downregulation. Reduced IL-4(+) cell frequency was linked to an increase in the frequency of CD4(+) T cells with a regulatory phenotype. Changes in sIgE levels and reduced IL-4 and blocking antibody levels could thus be used as indicators of a patient's immune response to therapy.
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Affiliation(s)
- Abel Suárez-Fueyo
- Department of Immunology and Oncology, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, Spain
| | - Tania Ramos
- Servicio de Alergia, Hospital Universitario de La Princesa (IP), Instituto de Investigación Sanitaria Princesa, Madrid, Spain
| | | | | | | | | | - Consolación de Frutos
- Servicio de Alergia, Hospital Universitario de La Princesa (IP), Instituto de Investigación Sanitaria Princesa, Madrid, Spain
| | - Carlos Blanco
- Servicio de Alergia, Hospital Universitario de La Princesa (IP), Instituto de Investigación Sanitaria Princesa, Madrid, Spain
| | - Ana C Carrera
- Department of Immunology and Oncology, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, Spain
| | | | - Rosa Varona
- Department of Immunology and Oncology, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, Spain.
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11
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Saki N, Abroun S, Soleimani M, Mortazavi Y, Kaviani S, Arefian E. The roles of miR-146a in the differentiation of Jurkat T-lymphoblasts. Hematology 2013; 19:141-7. [DOI: 10.1179/1607845413y.0000000105] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Affiliation(s)
- Najmaldin Saki
- Department of Hematology and Blood BankingFaculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saeid Abroun
- Department of Hematology and Blood BankingFaculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Masoud Soleimani
- Department of Hematology and Blood BankingFaculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Yousef Mortazavi
- Department of Pathology Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Saeid Kaviani
- Department of Hematology and Blood BankingFaculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ehsan Arefian
- Department of Stem Cell Biology DepartmentStem Cell Technology Research Center, Tehran, Iran
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12
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Conte E, Gili E, Fruciano M, Fagone E, Vancheri C. Human lung fibroblasts increase CD4(+)CD25(+)Foxp3(+) T cells in co-cultured CD4(+) lymphocytes. Cell Immunol 2013; 285:55-61. [PMID: 24076465 DOI: 10.1016/j.cellimm.2013.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 09/02/2013] [Accepted: 09/03/2013] [Indexed: 12/29/2022]
Abstract
Aim of this study was to evaluate functional modifications induced by human lung fibroblasts in co-cultured CD4(+) T lymphocytes. CD4(+) T cells, resting or stimulated with ionomycin/PMA for 6h, were co-cultured with fibroblasts isolated from pulmonary biopsies, in contact or separated by a semi-permeable membrane. The expression of CD25, CTLA-4, TGF-β, IFNγ, IL-2, IL-4, IL-10 and Foxp3 was evaluated by flow cytometric analysis. Fibroblasts induced a significant increment in CD25(+) cells in co-cultured activated CD4(+) T lymphocytes separated by a membrane. Moreover, fibroblasts treatment with a COX2 inhibitor abrogated the increment in CD25(+) cells whereas exogenous PGE2 restored it. The CD25(+) subpopulation was characterized by increased presence of Fox-P3, CTLA-4, IL-10 and TGF-β positive cells while IFN-γ and IL-2 positive cells were diminished. Proliferative response of CD4(+) to the anti CD3/CD28-Abs was abrogated in CD4(+) co-cultured with fibroblasts thus demonstrating a suppressive feature of the expanded CD25(+) subpopulation.
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Affiliation(s)
- Enrico Conte
- Department of Clinical and MolecularBiomedicine, University of Catania, Catania, Italy.
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13
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Chistiakov DA, Sobenin IA, Orekhov AN. Regulatory T cells in atherosclerosis and strategies to induce the endogenous atheroprotective immune response. Immunol Lett 2013; 151:10-22. [DOI: 10.1016/j.imlet.2013.01.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Revised: 01/28/2013] [Accepted: 01/31/2013] [Indexed: 01/30/2023]
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14
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Heiber JF, Geiger TL. Context and location dependence of adaptive Foxp3(+) regulatory T cell formation during immunopathological conditions. Cell Immunol 2012; 279:60-5. [PMID: 23089195 DOI: 10.1016/j.cellimm.2012.09.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 08/29/2012] [Accepted: 09/12/2012] [Indexed: 02/07/2023]
Abstract
Circulating Foxp3(+) regulatory T cells (Treg) may arise in the thymus (natural Treg, nTreg) or through the adaptive upregulation of Foxp3 after T cell activation (induced Treg, iTreg). In this brief review, we explore evidence for the formation and function of iTreg during pathologic conditions. Determining the ontogeny and function of Treg populations has relied on the use of manipulated systems in which either iTreg or nTreg are absent, or lineage tracing of T cell clones through repertoire analyses. iTreg appear particularly important at mucosal interfaces. iTreg can also ameliorate tissue-specific autoimmunity and are a prominent source of tumor-infiltrating Treg in some models. However, under many conditions, including in CNS autoimmunity, diabetes, and some tumor systems, iTreg formation appears limited. The immunological contribution of iTreg is thus highly context dependent. Deciphering immune parameters responsible for iTreg formation and their role in modulating pathologic immune responses will be important.
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Affiliation(s)
- Joshua F Heiber
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
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15
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Wambre E, James EA, Kwok WW. Characterization of CD4+ T cell subsets in allergy. Curr Opin Immunol 2012; 24:700-6. [PMID: 22889592 DOI: 10.1016/j.coi.2012.07.009] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Accepted: 07/25/2012] [Indexed: 12/16/2022]
Abstract
Allergen specific T(H)2 cells are a key component of allergic disease, but their characterization has been hindered by technical limitations and lack of epitope data. Knowledge about the factors that drive the differentiation of naïve T cells into allergy-promoting T(H)2 cells and the influence of allergen specific immunotherapy on the phenotype and function of allergen-specific T cells have also been limited. Recent advances indicate that innate and adaptive immune factors drive the development of diverse subsets of allergen-specific T cells. While allergen-specific T cells are present even in non-allergic subjects, highly differentiated T(H)2 cells are present only in allergic subjects and their disappearance correlates with successful immunotherapy. Therefore, elimination of pathogenic T(H)2 cells is an essential step in tolerance induction.
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Affiliation(s)
- Erik Wambre
- Benaroya Research Institute at Virginia Mason, Seattle, WA 98101-2795, USA
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16
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Feyler S, Scott GB, Parrish C, Jarmin S, Evans P, Short M, McKinley K, Selby PJ, Cook G. Tumour cell generation of inducible regulatory T-cells in multiple myeloma is contact-dependent and antigen-presenting cell-independent. PLoS One 2012; 7:e35981. [PMID: 22666318 PMCID: PMC3362588 DOI: 10.1371/journal.pone.0035981] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Accepted: 03/25/2012] [Indexed: 11/24/2022] Open
Abstract
Regulatory T-cells (TReg cells) are increased in patients with multiple myeloma (MM). We investigated whether MM cells could generate and/or expand TReg cells as a method of immuno-surveillance avoidance. In an in vitro model, CD4+CD25-FoxP3- T-cells co-cultured with malignant plasma cells (primary MM cells and cell lines) induced a significant generation of CD4+CD25+FoxP3+ inducible TReg cells (tTReg cells; p<0.0001), in a contact-dependent manner. tTReg cells were polyclonal, demonstrated a suppressive phenotype and phenotypically, demonstrated increased FoxP3 (p = 0.0001), increased GITR (p<0.0001), increased PD1 (p = 0.003) and decreased CD62L (p = 0.007) expression compared with naturally occurring TReg cells. FACS-sorted tTReg cells differentiated into FoxP+IL-17+ and FoxP3-IL-17+ CD4+ cells upon TCR-mediated stimulation. Blocking experiments with anti-ICOS-L MoAb resulted in a significant inhibition of tTReg cell generation whereas both IL-10 & TGFβ blockade did not. MM tumour cells can directly generate functional TReg cells in a contact-dependent manner, mediated by ICOS/ICOS-L. These features suggest that tumour generation of TReg cells may contribute to evasion of immune surveillance by the host.
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Affiliation(s)
- Sylvia Feyler
- Transplant Immunology Group, Academic Department of Haematology and Oncology, University of Leeds, Leeds, United Kingdom
- Department of Haematology, Calderdale and Huddersfield NHS Trust, Huddersfield, United Kingdom
| | - Gina B. Scott
- Transplant Immunology Group, Academic Department of Haematology and Oncology, University of Leeds, Leeds, United Kingdom
| | - Christopher Parrish
- Transplant Immunology Group, Academic Department of Haematology and Oncology, University of Leeds, Leeds, United Kingdom
| | - Sarah Jarmin
- Transplant Immunology Group, Academic Department of Haematology and Oncology, University of Leeds, Leeds, United Kingdom
| | - Paul Evans
- Haematological Malignancy Diagnostic Service, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| | - Mike Short
- Haematological Malignancy Diagnostic Service, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| | - Katherine McKinley
- Department of Clinical Immunology, Leeds Teaching Hospitals Trust, Leeds, United Kingdom
| | - Peter J. Selby
- Academic Department of Haematology and Oncology, University of Leeds, Leeds, United Kingdom
| | - Gordon Cook
- Transplant Immunology Group, Academic Department of Haematology and Oncology, University of Leeds, Leeds, United Kingdom
- Department of Haematology, St James’s Institute of Oncology, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
- * E-mail:
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17
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Abstract
The role of Foxp3+ regulatory T (Treg) cells in atopic dermatitis (AD) is still unclear. In a murine AD model, the number of Foxp3+ cells increased in the allergen-exposed skin area and in the secondary lymphoid organs. Both Foxp3+ and Foxp3- IL-10+ T cells accumulated at the site of allergen exposure, and CD103+ effector/memory Foxp3+ Treg cells expanded gradually in the lymph nodes throughout the sensitization protocol. The depletion of Foxp3+ Treg cells led to significantly exacerbated skin inflammation, including increased recruitment of inflammatory cells and expression of T helper type 2 cytokines, as well as elevated serum IgE levels. The effect of depleting Treg cells during epicutaneous sensitization was mirrored off by a stronger inflammatory response also in the lungs following airway challenge. Thus, Treg cells have an important role in controlling AD-like inflammation and the transfer of allergic skin inflammation to the lungs.
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18
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Abstract
Interleukin-9 (IL-9), cloned more than 20 years ago, was initially thought to be a Th2-specific cytokine. This assumption was initially confirmed by functional analyses showing that both IL-9 and Th2 cells play an important role in the pathogenesis of asthma, IgE class switch recombination, and resolution of parasitic infections. However, recently it was shown that IL-9-producing CD4(+) T cells represent the discrete T helper subset Th9 cells. Herein, we will review the cytokines and transcription factors known to promote the development of Th9 cells and their potential functional properties in relation to the biological activities of IL-9. In addition, we will discuss how Th9 cells are related to Th2, Th17, and T(reg) cells, as both an alternative source of IL-9 and in view of the fact that plasticity of CD4(+) T cell differentiation is currently a strong matter of debate in immunologic research.
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Affiliation(s)
- Michael Stassen
- Institute for Immunology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
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19
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Maruyama T, Konkel JE, Zamarron BF, Chen W. The molecular mechanisms of Foxp3 gene regulation. Semin Immunol 2011; 23:418-23. [PMID: 21752667 PMCID: PMC3205321 DOI: 10.1016/j.smim.2011.06.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Accepted: 06/07/2011] [Indexed: 01/03/2023]
Abstract
Induction of Foxp3 gene expression and acquisition of regulatory T cell fate is, understandably, a highly controlled process and one which many investigators want to illuminate. In studying the regulation of Foxp3 gene expression, several conserved non-coding regions have been identified and the role of various transcription factors at these sites has been explored. What emerges is that many factors, some positive, some negative, interact to collectively drive Foxp3 gene expression and then maintain its expression in Foxp3(+) regulatory T cells. TCR signaling is imperative for Foxp3 gene expression and TGF-β is a key cytokine for initiating Foxp3 gene expression in naïve T cells. But other signaling pathways are also known to play a role in properly orchestrating Foxp3 gene expression and regulatory T cell expansion. Here we review the recent progress in understanding the complex molecular events that drive Foxp3 gene expression and allow functional regulatory T cells to develop.
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Affiliation(s)
- Takashi Maruyama
- Mucosal Immunology Section, OIIB, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
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20
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Wambre E, DeLong JH, James EA, LaFond RE, Robinson D, Kwok WW. Differentiation stage determines pathologic and protective allergen-specific CD4+ T-cell outcomes during specific immunotherapy. J Allergy Clin Immunol 2011; 129:544-51, 551.e1-7. [PMID: 21975176 DOI: 10.1016/j.jaci.2011.08.034] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 07/23/2011] [Accepted: 08/29/2011] [Indexed: 10/16/2022]
Abstract
BACKGROUND The main obstacle to elucidating the role of CD4(+) T cells in allergen-specific immunotherapy (SIT) has been the absence of an adequately sensitive approach to directly characterize rare allergen-specific T cells without introducing substantial phenotypic modifications by means of in vitro amplification. OBJECTIVE We sought to monitor, in physiological conditions, the allergen-specific CD4(+) T cells generated during natural pollen exposure and during allergy vaccination. METHODS Alder pollen allergy was used as a model for studying seasonal allergies. Allergen-specific CD4(+) T cells were tracked and characterized in 12 subjects with alder pollen allergy, 6 nonallergic subjects, and 9 allergy vaccine-treated subjects by using peptide-MHC class II tetramers. RESULTS Allergen-specific CD4(+) T cells were detected in all of the subjects with alder pollen allergy and nonallergic subjects tested. Pathogenic responses--chemoattractant receptor homologous molecule expressed on T(H)2 lymphocytes (CRTH2) expression and T(H)2 cytokine production--are specifically associated with terminally differentiated (CD27(-)) allergen-specific CD4(+) T cells, which dominate in allergic subjects but are absent in nonallergic subjects. In contrast, CD27(+) allergen-specific CD4(+) T cells are present at low frequencies in both allergic and nonallergic subjects and reflect classical features of the protective immune response with high expression of IL-10 and IFN-γ. Restoration of a protective response during SIT appears to be due to the preferential deletion of pathogenic (CD27(-)) allergen-specific CD4(+) T cells accompanied by IL-10 induction in surviving CD27(+) allergen-specific CD4(+) T cells. CONCLUSIONS Differentiation stage divides allergen-specific CD4(+) T cells into 2 distinct subpopulations with unique functional properties and different fates during SIT.
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Affiliation(s)
- Erik Wambre
- Benaroya Research Institute at Virginia Mason, Seattle, Wash 98101, USA
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21
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Wohlfert EA, Grainger JR, Bouladoux N, Konkel JE, Oldenhove G, Ribeiro CH, Hall JA, Yagi R, Naik S, Bhairavabhotla R, Paul WE, Bosselut R, Wei G, Zhao K, Oukka M, Zhu J, Belkaid Y. GATA3 controls Foxp3⁺ regulatory T cell fate during inflammation in mice. J Clin Invest 2011; 121:4503-15. [PMID: 21965331 DOI: 10.1172/jci57456] [Citation(s) in RCA: 419] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Accepted: 08/24/2011] [Indexed: 12/17/2022] Open
Abstract
Tregs not only keep immune responses to autoantigens in check, but also restrain those directed toward pathogens and the commensal microbiota. Control of peripheral immune homeostasis by Tregs relies on their capacity to accumulate at inflamed sites and appropriately adapt to their local environment. To date, the factors involved in the control of these aspects of Treg physiology remain poorly understood. Here, we show that the canonical Th2 transcription factor GATA3 is selectively expressed in Tregs residing in barrier sites including the gastrointestinal tract and the skin. GATA3 expression in both murine and human Tregs was induced upon TCR and IL-2 stimulation. Although GATA3 was not required to sustain Treg homeostasis and function at steady state, GATA3 played a cardinal role in Treg physiology during inflammation. Indeed, the intrinsic expression of GATA3 by Tregs was required for their ability to accumulate at inflamed sites and to maintain high levels of Foxp3 expression in various polarized or inflammatory settings. Furthermore, our data indicate that GATA3 limits Treg polarization toward an effector T cell phenotype and acquisition of effector cytokines in inflamed tissues. Overall, our work reveals what we believe to be a new facet in the complex role of GATA3 in T cells and highlights what may be a fundamental role in controlling Treg physiology during inflammation.
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Affiliation(s)
- Elizabeth A Wohlfert
- Mucosal Immunology Unit, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, Maryland, USA
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22
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Hamza E, Steinbach F, Marti E. CD4+CD25+ T cells expressing FoxP3 in Icelandic horses affected with insect bite hypersensitivity. Vet Immunol Immunopathol 2011; 148:139-44. [PMID: 21700344 DOI: 10.1016/j.vetimm.2011.05.033] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2010] [Revised: 03/15/2011] [Accepted: 05/30/2011] [Indexed: 02/01/2023]
Abstract
Insect bite hypersensitivity (IBH) is an IgE-mediated dermatitis caused by bites of midges from the genus Culicoides. We have shown previously that peripheral blood mononuclear cells (PBMC) from IBH-affected horses produce higher levels of IL-4 and lower levels of IL-10 and TGF-β1 than those from healthy horses, suggesting that IBH is associated with a reduced regulatory immune response. FoxP3 is a crucial marker of regulatory T cells (Tregs). Here we have determined the proportion of CD4(+)CD25(+)FoxP3(+) T cells by flow cytometry in PBMC directly after isolation or after stimulation with Culicoides extract or a control antigen (Tetanus Toxoid). There were no differences between healthy and IBH horses either in the proportion of FoxP3(+)CD4(+)CD25(+) cells in freshly isolated PBMC or in the following stimulation with Tetanus Toxoid. However, upon stimulation of PBMC with the allergen, expression of FoxP3 by CD4(+)CD25(+high) and CD4(+)CD25(+dim) cells was significantly higher in healthy than in IBH horses. Addition of recombinant IL-4 to PBMC from healthy horses stimulated with the allergen significantly decreased the proportion of FoxP3 expressing cells within CD4(+)CD25(+high). These results suggest that IBH is associated with a decreased number of allergen-induced Tregs. This could be a consequence of the increased IL-4 production by PBMC of IBH-affected horses.
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Affiliation(s)
- Eman Hamza
- Department of Clinical Research and Veterinary Public Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland.
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23
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Abstract
Regulatory T cells (T(reg)) control an array of immune responses both in the context of various polarized settings as well as in distinct microenvironments. This implies that maintenance of peripheral homeostasis relies on the capacity of T(reg) to appropriately adapt to these defined settings while sustaining a regulatory program in the face of inflammation. Adaptation of T(reg) is particularly critical in tissues constantly exposed to microbes, such as the gut or the skin, or in the context of exposure to pathogenic microbes. Recent evidence supports the idea that the capacity of T(reg) to control defined polarized settings can be associated with the acquisition of specific transcription factors previously associated with effector T-cell lineages. In this review we will discuss how such adaptation of T(reg) can have a major role in the control of host-microbe interaction.
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