1
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Sumida TS, Cheru NT, Hafler DA. The regulation and differentiation of regulatory T cells and their dysfunction in autoimmune diseases. Nat Rev Immunol 2024; 24:503-517. [PMID: 38374298 PMCID: PMC11216899 DOI: 10.1038/s41577-024-00994-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2024] [Indexed: 02/21/2024]
Abstract
The discovery of FOXP3+ regulatory T (Treg) cells as a distinct cell lineage with a central role in regulating immune responses provided a deeper understanding of self-tolerance. The transcription factor FOXP3 serves a key role in Treg cell lineage determination and maintenance, but is not sufficient to enable the full potential of Treg cell suppression, indicating that other factors orchestrate the fine-tuning of Treg cell function. Moreover, FOXP3-independent mechanisms have recently been shown to contribute to Treg cell dysfunction. FOXP3 mutations in humans cause lethal fulminant systemic autoinflammation (IPEX syndrome). However, it remains unclear to what degree Treg cell dysfunction is contributing to the pathophysiology of common autoimmune diseases. In this Review, we discuss the origins of Treg cells in the periphery and the multilayered mechanisms by which Treg cells are induced, as well as the FOXP3-dependent and FOXP3-independent cellular programmes that maintain the suppressive function of Treg cells in humans and mice. Further, we examine evidence for Treg cell dysfunction in the context of common autoimmune diseases such as multiple sclerosis, inflammatory bowel disease, systemic lupus erythematosus and rheumatoid arthritis.
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Affiliation(s)
- Tomokazu S Sumida
- Department of Neurology, Yale School of Medicine, New Haven, CT, USA.
| | - Nardos T Cheru
- Department of Immunobiology, Yale School of Medicine, New Haven, CT, USA
| | - David A Hafler
- Department of Neurology, Yale School of Medicine, New Haven, CT, USA.
- Department of Immunobiology, Yale School of Medicine, New Haven, CT, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.
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2
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Carbone F, Colamatteo A, La Rocca C, Lepore MT, Russo C, De Rosa G, Matarese A, Procaccini C, Matarese G. Metabolic Plasticity of Regulatory T Cells in Health and Autoimmunity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:1859-1866. [PMID: 38830147 DOI: 10.4049/jimmunol.2400079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 04/05/2024] [Indexed: 06/05/2024]
Abstract
Immunometabolism has been demonstrated to control immune tolerance and the pathogenic events leading to autoimmunity. Compelling experimental evidence also suggests that intracellular metabolic programs influence differentiation, phenotype, proliferation, and effector functions of anti-inflammatory CD4+CD25+Foxp3+ regulatory T (Treg) cells. Indeed, alterations in intracellular metabolism associate with quantitative and qualitative impairments of Treg cells in several pathological conditions. In this review, we summarize the most recent advances linking how metabolic pathways control Treg cell homeostasis and their alterations occurring in autoimmunity. Also, we analyze how metabolic manipulations could be employed to restore Treg cell frequency and function with the aim to create novel therapeutic opportunities to halt immune-mediated disorders.
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Grants
- 2022LNHZAP Ministero dell''''Istruzione, dell''''Università e della Ricerca (MIUR)
- PE00000007 Ministero dell''''Istruzione, dell''''Università e della Ricerca (MIUR)
- PE00000006 Ministero dell''''Istruzione, dell''''Università e della Ricerca (MIUR)
- RF-2019-12371111 Italy Ministry of Health | Agenzia Italiana del Farmaco, Ministero della Salute (AIFA)
- PNRR-MAD-2022-12375634 Italy Ministry of Health | Agenzia Italiana del Farmaco, Ministero della Salute (AIFA)
- GR-2018-12366154 Italy Ministry of Health | Agenzia Italiana del Farmaco, Ministero della Salute (AIFA)
- 2022-PRsingle/013 Fondazione Italiana Sclerosi Multipla (FISM)
- P2022T4PKT Ministero dell''''Istruzione, dell''''Università e della Ricerca (MIUR)
- PNRR-MAD-2022-12376126 Italy Ministry of Health | Agenzia Italiana del Farmaco, Ministero della Salute (AIFA)
- GR-2021-12373337 Italy Ministry of Health | Agenzia Italiana del Farmaco, Ministero della Salute (AIFA)
- 2022YMJXYT Ministero dell''''Istruzione, dell''''Università e della Ricerca (MIUR)
- P2022CMK43 Ministero dell''''Istruzione, dell''''Università e della Ricerca (MIUR)
- 20225KH7BZ Ministero dell''''Istruzione, dell''''Università e della Ricerca (MIUR)
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Affiliation(s)
- Fortunata Carbone
- Laboratorio di Immunologia, Istituto per l'Endocrinologia e l'Oncologia Sperimentale "G. Salvatore," Consiglio Nazionale delle Ricerche, Napoli, Italy
- Unità di Neuroimmunologia, IRCCS-Fondazione Santa Lucia, Roma, Italy
| | - Alessandra Colamatteo
- Treg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II," Napoli, Italy
| | - Claudia La Rocca
- Laboratorio di Immunologia, Istituto per l'Endocrinologia e l'Oncologia Sperimentale "G. Salvatore," Consiglio Nazionale delle Ricerche, Napoli, Italy
| | - Maria Teresa Lepore
- Laboratorio di Immunologia, Istituto per l'Endocrinologia e l'Oncologia Sperimentale "G. Salvatore," Consiglio Nazionale delle Ricerche, Napoli, Italy
| | - Claudia Russo
- D.A.I. Medicina di Laboratorio e Trasfusionale, Azienda Ospedaliera Universitaria "Federico II," Napoli, Italy
| | - Giusy De Rosa
- Treg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II," Napoli, Italy
| | - Alessandro Matarese
- Dipartimento di Medicina Clinica e Chirurgia, Università degli Studi di Napoli "Federico II," Napoli, Italy
| | - Claudio Procaccini
- Laboratorio di Immunologia, Istituto per l'Endocrinologia e l'Oncologia Sperimentale "G. Salvatore," Consiglio Nazionale delle Ricerche, Napoli, Italy
- Unità di Neuroimmunologia, IRCCS-Fondazione Santa Lucia, Roma, Italy
| | - Giuseppe Matarese
- Laboratorio di Immunologia, Istituto per l'Endocrinologia e l'Oncologia Sperimentale "G. Salvatore," Consiglio Nazionale delle Ricerche, Napoli, Italy
- Treg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II," Napoli, Italy
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3
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Grunwald C, Krętowska-Grunwald A, Adamska-Patruno E, Kochanowicz J, Kułakowska A, Chorąży M. The Role of Selected Interleukins in the Development and Progression of Multiple Sclerosis-A Systematic Review. Int J Mol Sci 2024; 25:2589. [PMID: 38473835 PMCID: PMC10932438 DOI: 10.3390/ijms25052589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/18/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
Multiple sclerosis is a disabling inflammatory disorder of the central nervous system characterized by demyelination and neurodegeneration. Given that multiple sclerosis remains an incurable disease, the management of MS predominantly focuses on reducing relapses and decelerating the progression of both physical and cognitive decline. The continuous autoimmune process modulated by cytokines seems to be a vital contributing factor to the development and relapse of multiple sclerosis. This review sought to summarize the role of selected interleukins in the pathogenesis and advancement of MS. Patients with MS in the active disease phase seem to exhibit an increased serum level of IL-2, IL-4, IL-6, IL-13, IL-17, IL-21, IL-22 and IL-33 compared to healthy controls and patients in remission, while IL-10 appears to have a beneficial impact in preventing the progression of the disease. Despite being usually associated with proinflammatory activity, several studies have additionally recognized a neuroprotective role of IL-13, IL-22 and IL-33. Moreover, selected gene polymorphisms of IL-2R, IL-4, IL-6, IL-13 and IL-22 were identified as a possible risk factor related to MS development. Treatment strategies of multiple sclerosis that either target or utilize these cytokines seem rather promising, but more comprehensive research is necessary to gain a clearer understanding of how these cytokines precisely affect MS development and progression.
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Affiliation(s)
- Cezary Grunwald
- Department of Neurology, Medical University of Bialystok, Marii Skłodowskiej-Curie 24A, 15-276 Białystok, Poland; (J.K.); (A.K.)
| | - Anna Krętowska-Grunwald
- Department of Pediatric Oncology and Hematology, Medical University of Bialystok, Jerzego Waszyngtona 17, 15-274 Białystok, Poland;
| | - Edyta Adamska-Patruno
- Clinical Research Center, Medical University of Bialystok, Marii Skłodowskiej-Curie 24A, 15-276 Białystok, Poland;
| | - Jan Kochanowicz
- Department of Neurology, Medical University of Bialystok, Marii Skłodowskiej-Curie 24A, 15-276 Białystok, Poland; (J.K.); (A.K.)
| | - Alina Kułakowska
- Department of Neurology, Medical University of Bialystok, Marii Skłodowskiej-Curie 24A, 15-276 Białystok, Poland; (J.K.); (A.K.)
| | - Monika Chorąży
- Department of Neurology, Medical University of Bialystok, Marii Skłodowskiej-Curie 24A, 15-276 Białystok, Poland; (J.K.); (A.K.)
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4
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Liu J, Zhang B, Zhang G, Shang D. Reprogramming of regulatory T cells in inflammatory tumor microenvironment: can it become immunotherapy turning point? Front Immunol 2024; 15:1345838. [PMID: 38449875 PMCID: PMC10915070 DOI: 10.3389/fimmu.2024.1345838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 01/29/2024] [Indexed: 03/08/2024] Open
Abstract
Overcoming the immunosuppressive tumor microenvironment and identifying widely used immunosuppressants with minimal side effects are two major challenges currently hampering cancer immunotherapy. Regulatory T cells (Tregs) are present in almost all cancer tissues and play an important role in preserving autoimmune tolerance and tissue homeostasis. The tumor inflammatory microenvironment causes the reprogramming of Tregs, resulting in the conversion of Tregs to immunosuppressive phenotypes. This process ultimately facilitates tumor immune escape or tumor progression. However, current systemic Treg depletion therapies may lead to severe autoimmune toxicity. Therefore, it is crucial to understand the mechanism of Treg reprogramming and develop immunotherapies that selectively target Tregs within tumors. This article provides a comprehensive review of the potential mechanisms involved in Treg cell reprogramming and explores the application of Treg cell immunotherapy. The interference with reprogramming pathways has shown promise in reducing the number of tumor-associated Tregs or impairing their function during immunotherapy, thereby improving anti-tumor immune responses. Furthermore, a deeper understanding of the mechanisms that drive Treg cell reprogramming could reveal new molecular targets for future treatments.
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Affiliation(s)
- Jinming Liu
- Department of General Surgery, Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Biao Zhang
- Department of General Surgery, Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Guolin Zhang
- Department of Cardiology, The Second Hospital of Dalian Medical University, Dalian, China
| | - Dong Shang
- Department of General Surgery, Clinical Laboratory of Integrative Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, China
- Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, China
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5
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Pisoschi AM, Iordache F, Stanca L, Cimpeanu C, Furnaris F, Geicu OI, Bilteanu L, Serban AI. Comprehensive and critical view on the anti-inflammatory and immunomodulatory role of natural phenolic antioxidants. Eur J Med Chem 2024; 265:116075. [PMID: 38150963 DOI: 10.1016/j.ejmech.2023.116075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/17/2023] [Accepted: 12/18/2023] [Indexed: 12/29/2023]
Abstract
The immune response encompasses innate and adaptive immunity, each with distinct and specific activities. The innate immune system is constituted by phagocytic cells, macrophages, monocytes and neutrophils, the cascade system, and different classes of receptors such as toll-like receptors that are exploited by the innate immune cells. The adaptive immune system is antigen-specific, encompassing memory lymphocytes and the corresponding specific receptors. Inflammation is understood as an activation of different signaling pathways such as toll-like receptors or nuclear factor kappa-light-chain-enhancer of activated B cells, with an increase in nitric oxide, inflammatory cytokines and chemokines. Increased oxidative stress has been identified as main source of chronic inflammation. Phenolic antioxidants modulate the activities of lymphocytes and macrophages by impacting cytokines and nitric oxide release, exerting anti-inflammatory effect. The nuclear-factor kappa-light-chain-enhancer of activated B cells signaling pathway and the mitogen-activated protein kinase pathway are targeted, alongside an increase in nuclear factor erythroid 2-related factor mediated antioxidant response, triggering the activity of antioxidant enzymes. The inhibitive potential on phospholipase A2, cyclooxygenase and lipoxygenase in the arachidonic acid pathway, and the subsequent reduction in prostaglandin and leukotriene generation, reveals the potential of phenolics as inflammation antagonists. The immunomodulative potential encompasses the capacity to interfere with proinflammatory cytokine synthesis and with the expression of the corresponding genes. A diet rich in antioxidants can result in prevention of inflammation-related pathologies. More investigations are necessary to establish the role of these antioxidants in therapy. The appropriate delivery system and the prooxidant effects exhibited at large doses, or in the presence of heavy metal cations should be regarded.
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Affiliation(s)
- Aurelia Magdalena Pisoschi
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, Department Preclinical Sciences, 105 Splaiul Independentei, 050097, Bucharest, Romania.
| | - Florin Iordache
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, Department Preclinical Sciences, 105 Splaiul Independentei, 050097, Bucharest, Romania
| | - Loredana Stanca
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, Department Preclinical Sciences, 105 Splaiul Independentei, 050097, Bucharest, Romania
| | - Carmen Cimpeanu
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Land Reclamation and Environmental Engineering, 59 Marasti Blvd, 011464, Bucharest, Romania
| | - Florin Furnaris
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, Department Preclinical Sciences, 105 Splaiul Independentei, 050097, Bucharest, Romania
| | - Ovidiu Ionut Geicu
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, Department Preclinical Sciences, 105 Splaiul Independentei, 050097, Bucharest, Romania; University of Bucharest, Faculty of Biology, Department Biochemistry and Molecular Biology, 91-95 Splaiul Independentei, 050095, Bucharest, Romania
| | - Liviu Bilteanu
- Molecular Nanotechnology Laboratory, National Institute for Research and Development in Microtechnologies, 126A, Erou Iancu Nicolae Street, 077190, Bucharest, Romania
| | - Andreea Iren Serban
- University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Veterinary Medicine, Department Preclinical Sciences, 105 Splaiul Independentei, 050097, Bucharest, Romania; University of Bucharest, Faculty of Biology, Department Biochemistry and Molecular Biology, 91-95 Splaiul Independentei, 050095, Bucharest, Romania
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6
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Xu Y, Li M, Lin M, Cui D, Xie J. Glutaminolysis of CD4 + T Cells: A Potential Therapeutic Target in Viral Diseases. J Inflamm Res 2024; 17:603-616. [PMID: 38318243 PMCID: PMC10840576 DOI: 10.2147/jir.s443482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 01/13/2024] [Indexed: 02/07/2024] Open
Abstract
CD4+ T cells play a critical role in the pathogenesis of viral diseases, which are activated by the internal metabolic pathways encountering with viral antigens. Glutaminolysis converts glutamine into tricarboxylic acid (TCA) circulating metabolites by α-ketoglutaric acid, which is essential for the proliferation and differentiation of CD4+ T cells and plays a central role in providing the energy and structural components needed for viral replication after the virus hijacks the host cell. Changes in glutaminolysis in CD4+ T cells are accompanied by changes in the viral status of the host cell due to competition for glutamine between immune cells and host cells. More recently, attempts have been made to treat tumours, autoimmune diseases, and viral diseases by altering the breakdown of glutamine in T cells. In this review, we will discuss the current knowledge of glutaminolysis in the CD4+ T cell subsets from viral diseases, not only increasing our understanding of immunometabolism but also providing a new perspective for therapeutic target in viral diseases.
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Affiliation(s)
- Yushan Xu
- Department of Blood Transfusion, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, People’s Republic of China
| | - Miaomiao Li
- Department of Blood Transfusion, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, People’s Republic of China
| | - Mengjiao Lin
- Department of Blood Transfusion, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, People’s Republic of China
| | - Dawei Cui
- Department of Blood Transfusion, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, People’s Republic of China
| | - Jue Xie
- Department of Blood Transfusion, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, People’s Republic of China
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7
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Blinova VG, Gladilina YA, Abramova AA, Eliseeva DD, Vtorushina VV, Shishparenok AN, Zhdanov DD. Modulation of Suppressive Activity and Proliferation of Human Regulatory T Cells by Splice-Switching Oligonucleotides Targeting FoxP3 Pre-mRNA. Cells 2023; 13:77. [PMID: 38201281 PMCID: PMC10777989 DOI: 10.3390/cells13010077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/05/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
The maturation, development, and function of regulatory T cells (Tregs) are under the control of the crucial transcription factor Forkhead Box Protein 3 (FoxP3). Through alternative splicing, the human FoxP3 gene produces four different splice variants: a full-length variant (FL) and truncated variants with deletions of each of exons 2 (∆2 variant) or 7 (∆7 variant) or a deletion of both exons (∆2∆7 variant). Their involvement in the biology of Tregs as well as their association with autoimmune diseases remains to be clarified. The aim of this work was to induce a single FoxP3 splice variant in human Tregs by splice switching oligonucleotides and to monitor their phenotype and proliferative and suppressive activity. We demonstrated that Tregs from peripheral blood from patients with multiple sclerosis preferentially expressed truncated splice variants, while the FL variant was the major variant in healthy donors. Tregs with induced expression of truncated FoxP3 splice variants demonstrated lower suppressive activity than those expressing FL variants. Reduced suppression was associated with the decreased expression of Treg-associated suppressive surface molecules and the production of cytokines. The deletion of exons 2 and/or 7 also reduced the cell proliferation rate. The results of this study show an association between FoxP3 splice variants and Treg function and proliferation. The modulation of Treg suppressive activity by the induction of the FoxP3 FL variant can become a promising strategy for regenerative immunotherapy.
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Affiliation(s)
- Varvara G. Blinova
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, Pogodinskaya st. 10/8, 119121 Moscow, Russia; (V.G.B.); (Y.A.G.); (A.A.A.); (A.N.S.)
| | - Yulia A. Gladilina
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, Pogodinskaya st. 10/8, 119121 Moscow, Russia; (V.G.B.); (Y.A.G.); (A.A.A.); (A.N.S.)
| | - Anna A. Abramova
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, Pogodinskaya st. 10/8, 119121 Moscow, Russia; (V.G.B.); (Y.A.G.); (A.A.A.); (A.N.S.)
- Research Center of Neurology, Volokolamskoe Shosse, 80, 125367 Moscow, Russia;
| | - Daria D. Eliseeva
- Research Center of Neurology, Volokolamskoe Shosse, 80, 125367 Moscow, Russia;
| | - Valentina V. Vtorushina
- National Medical Research Center for Obstetrics, Gynecology and Perinatology Named after Academician V.I. Kulakov of Ministry of Healthcare of the Russian Federation, Laboratory of Clinical Immunology, Academician Oparin st. 4, 117997 Moscow, Russia;
| | - Anastasia N. Shishparenok
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, Pogodinskaya st. 10/8, 119121 Moscow, Russia; (V.G.B.); (Y.A.G.); (A.A.A.); (A.N.S.)
| | - Dmitry D. Zhdanov
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, Pogodinskaya st. 10/8, 119121 Moscow, Russia; (V.G.B.); (Y.A.G.); (A.A.A.); (A.N.S.)
- Department of Biochemistry, People’s Friendship University of Russia Named after Patrice Lumumba (RUDN University), Miklukho-Maklaya st. 6, 117198 Moscow, Russia
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Luo Z, Zhang Y, Saleh QW, Zhang J, Zhu Z, Tepel M. Metabolic regulation of forkhead box P3 alternative splicing isoforms and their impact on health and disease. Front Immunol 2023; 14:1278560. [PMID: 37868998 PMCID: PMC10588449 DOI: 10.3389/fimmu.2023.1278560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 09/25/2023] [Indexed: 10/24/2023] Open
Abstract
Forkhead Box P3 (FOXP3) is crucial for the development and suppressive function of human regulatory T cells (Tregs). There are two predominant FOXP3 splicing isoforms in healthy humans, the full-length isoform and the isoform lacking exon 2, with different functions and regulation mechanisms. FOXP3 splicing isoforms show distinct abilities in the cofactor interaction and the nuclear translocation, resulting in different effects on the differentiation, cytokine secretion, suppressive function, linage stability, and environmental adaptation of Tregs. The balance of FOXP3 splicing isoforms is related to autoimmune diseases, inflammatory diseases, and cancers. In response to environmental challenges, FOXP3 transcription and splicing can be finely regulated by T cell antigen receptor stimulation, glycolysis, fatty acid oxidation, and reactive oxygen species, with various signaling pathways involved. Strategies targeting energy metabolism and FOXP3 splicing isoforms in Tregs may provide potential new approaches for the treatment of autoimmune diseases, inflammatory diseases, and cancers. In this review, we summarize recent discoveries about the FOXP3 splicing isoforms and address the metabolic regulation and specific functions of FOXP3 splicing isoforms in Tregs.
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Affiliation(s)
- Zhidan Luo
- Department of Geriatrics, Chongqing General Hospital, Chongqing, China
- Cardiovascular and Renal Research, Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Yihua Zhang
- Department of Cardiology, Chongqing Fifth People’s Hospital, Chongqing, China
| | - Qais Waleed Saleh
- Cardiovascular and Renal Research, Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
- Department of Nephrology, Odense University Hospital, Odense, Denmark
| | - Jie Zhang
- Department of Geriatrics, Chongqing General Hospital, Chongqing, China
| | - Zhiming Zhu
- Department of Hypertension and Endocrinology, Daping Hospital, Chongqing, China
| | - Martin Tepel
- Cardiovascular and Renal Research, Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
- Department of Nephrology, Odense University Hospital, Odense, Denmark
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9
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Zong B, Yu F, Zhang X, Zhao W, Li S, Li L. Mechanisms underlying the beneficial effects of physical exercise on multiple sclerosis: focus on immune cells. Front Immunol 2023; 14:1260663. [PMID: 37841264 PMCID: PMC10570846 DOI: 10.3389/fimmu.2023.1260663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/13/2023] [Indexed: 10/17/2023] Open
Abstract
Multiple sclerosis (MS) is a prevalent neuroimmunological illness that leads to neurological disability in young adults. Although the etiology of MS is heterogeneous, it is well established that aberrant activity of adaptive and innate immune cells plays a crucial role in its pathogenesis. Several immune cell abnormalities have been described in MS and its animal models, including T lymphocytes, B lymphocytes, dendritic cells, neutrophils, microglia/macrophages, and astrocytes, among others. Physical exercise offers a valuable alternative or adjunctive disease-modifying therapy for MS. A growing body of evidence indicates that exercise may reduce the autoimmune responses triggered by immune cells in MS. This is partially accomplished by restricting the infiltration of peripheral immune cells into the central nervous system (CNS) parenchyma, curbing hyperactivation of immune cells, and facilitating a transition in the balance of immune cells from a pro-inflammatory to an anti-inflammatory state. This review provides a succinct overview of the correlation between physical exercise, immune cells, and MS pathology, and highlights the potential benefits of exercise as a strategy for the prevention and treatment of MS.
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Affiliation(s)
- Boyi Zong
- College of Physical Education and Health, East China Normal University, Shanghai, China
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai, China
| | - Fengzhi Yu
- College of Physical Education and Health, East China Normal University, Shanghai, China
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai, China
- School of Exercise and Health, Shanghai Frontiers Science Research Base of Exercise and Metabolic Health, Shanghai University of Sport, Shanghai, China
| | - Xiaoyou Zhang
- School of Physical Education, Hubei University, Wuhan, China
| | - Wenrui Zhao
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
| | - Shichang Li
- College of Physical Education and Health, East China Normal University, Shanghai, China
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai, China
| | - Lin Li
- College of Physical Education and Health, East China Normal University, Shanghai, China
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education, East China Normal University, Shanghai, China
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10
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Moon JS, Ho CC, Park JH, Park K, Shin BY, Lee SH, Sequeira I, Mun CH, Shin JS, Kim JH, Kim BS, Noh JW, Lee ES, Son JY, Kim Y, Lee Y, Cho H, So S, Park J, Choi E, Oh JW, Lee SW, Morio T, Watt FM, Seong RH, Lee SK. Lrig1-expression confers suppressive function to CD4 + cells and is essential for averting autoimmunity via the Smad2/3/Foxp3 axis. Nat Commun 2023; 14:5382. [PMID: 37666819 PMCID: PMC10477202 DOI: 10.1038/s41467-023-40986-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/16/2023] [Indexed: 09/06/2023] Open
Abstract
Regulatory T cells (Treg) are CD4+ T cells with immune-suppressive function, which is defined by Foxp3 expression. However, the molecular determinants defining the suppressive population of T cells have yet to be discovered. Here we report that the cell surface protein Lrig1 is enriched in suppressive T cells and controls their suppressive behaviors. Within CD4+ T cells, Treg cells express the highest levels of Lrig1, and the expression level is further increasing with activation. The Lrig1+ subpopulation from T helper (Th) 17 cells showed higher suppressive activity than the Lrig1- subpopulation. Lrig1-deficiency impairs the suppressive function of Treg cells, while Lrig1-deficient naïve T cells normally differentiate into other T cell subsets. Adoptive transfer of CD4+Lrig1+ T cells alleviates autoimmune symptoms in colitis and lupus nephritis mouse models. A monoclonal anti-Lrig1 antibody significantly improves the symptoms of experimental autoimmune encephalomyelitis. In conclusion, Lrig1 is an important regulator of suppressive T cell function and an exploitable target for treating autoimmune conditions.
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Affiliation(s)
- Jae-Seung Moon
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea
- Division of Immunology and Rheumatology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Chun-Chang Ho
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea
- Good T cells, Inc., Seoul, Republic of Korea
| | - Jong-Hyun Park
- Center for Brain Disorders, Brain Science Institute, Korea Institute of Science and Technology, Seoul, Republic of Korea
- Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, Republic of Korea
| | - Kyungsoo Park
- Department of Biological Sciences and Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Bo-Young Shin
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea
- Good T cells, Inc., Seoul, Republic of Korea
| | - Su-Hyeon Lee
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea
| | - Ines Sequeira
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, London, UK
| | - Chin Hee Mun
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin-Su Shin
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea
- Good T cells, Inc., Seoul, Republic of Korea
| | - Jung-Ho Kim
- Good T cells, Inc., Seoul, Republic of Korea
| | | | | | | | | | - Yuna Kim
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea
| | - Yeji Lee
- Good T cells, Inc., Seoul, Republic of Korea
| | - Hee Cho
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea
| | - SunHyeon So
- Good T cells, Inc., Seoul, Republic of Korea
| | - Jiyoon Park
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea
| | - Eunsu Choi
- Good T cells, Inc., Seoul, Republic of Korea
| | - Jong-Won Oh
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea
| | - Sang-Won Lee
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Fiona M Watt
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, London, UK
| | - Rho Hyun Seong
- Department of Biological Sciences and Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Sang-Kyou Lee
- Department of Biotechnology, Yonsei University College of Life Science and Biotechnology, Seoul, Republic of Korea.
- Good T cells, Inc., Seoul, Republic of Korea.
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11
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Halvorson T, Tuomela K, Levings MK. Targeting regulatory T cell metabolism in disease: Novel therapeutic opportunities. Eur J Immunol 2023; 53:e2250002. [PMID: 36891988 DOI: 10.1002/eji.202250002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/28/2023] [Accepted: 03/06/2023] [Indexed: 03/10/2023]
Abstract
Regulatory T cells (Tregs) are essential for immune homeostasis and suppression of pathological autoimmunity but can also play a detrimental role in cancer progression via inhibition of anti-tumor immunity. Thus, there is broad applicability for therapeutic Treg targeting, either to enhance function, for example, through adoptive cell therapy (ACT), or to inhibit function with small molecules or antibody-mediated blockade. For both of these strategies, the metabolic state of Tregs is an important consideration since cellular metabolism is intricately linked to function. Mounting evidence has shown that targeting metabolic pathways can selectively promote or inhibit Treg function. This review aims to synthesize the current understanding of Treg metabolism and discuss emerging metabolic targeting strategies in the contexts of transplantation, autoimmunity, and cancer. We discuss approaches to gene editing and cell culture to manipulate Treg metabolism during ex vivo expansion for ACT, as well as in vivo nutritional and pharmacological interventions to modulate Treg metabolism in disease states. Overall, the intricate connection between metabolism and phenotype presents a powerful opportunity to therapeutically tune Treg function.
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Affiliation(s)
- Torin Halvorson
- BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Karoliina Tuomela
- BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Megan K Levings
- BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
- Department of Surgery, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
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12
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Chen G, Zeng M, Liu Z, Zhou M, Zha J, Zhang L, Chen H, Liu H. The kinetics of mTORC1 activation associates with FOXP3 expression pattern of CD4+ T cells and outcome of steroid-sensitive minimal change disease. Int Immunopharmacol 2023; 122:110589. [PMID: 37418986 DOI: 10.1016/j.intimp.2023.110589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/09/2023]
Abstract
Minimal change disease (MCD) usually responds to glucocorticoids (GCs) but relapses in most cases. Relapse pathogenesis after complete remission (CR) remains unclear. We hypothesized that FOXP3+ T regulatory cell (Treg) dysregulation may drive early relapses (ER). In this study, a cohort of 23 MCD patients were treated with a conventional GC regimen for the initial onset of nephrotic syndrome. Upon GC withdrawal, seven patients suffered from ER, while 16 patients sustained remission (SR) during the 12-month follow-up. Patients with ER had reduced FOXP3+ Treg proportions compared with healthy controls. Treg reduction, accompanied by IL-10 impairment, was ascribed to a proportional decline of FOXP3medium rather than FOXP3high cells. GC-induced CR was marked by a rise in the proportions of FOXP3+ and FOXP3medium cells compared to baseline levels. These increases declined in patients with ER. The expression level of phosphorylated ribosomal protein S6 was used to track the dynamic shifts in mTORC1 activity within CD4+ T cells of MCD patients at various stages of treatment. Baseline mTORC1 activity was inversely correlated with FOXP3+ and FOXP3medium Treg proportion. The mTORC1 activity in CD4+ T cells served as a reliable indicator for ER and demonstrated improved performance when paired with FOXP3 expression. Mechanically, targeting mTORC1 intervention by siRNAs sufficiently altered the conversion pattern of CD4+ T cell to FOXP3+ Treg. Taken together, the activity of mTORC1 in CD4+ T cells can act as a credible predictor for ER in MCD, especially when combined with FOXP3 expression, and may offer a potential therapeutic avenue for the treatment of podocytopathies.
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Affiliation(s)
- Guochun Chen
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha, China; Clinical Immunology Research Center of Central South University, Changsha, China.
| | - Mengru Zeng
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Zhiwen Liu
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Mi Zhou
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Jie Zha
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lei Zhang
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Huihui Chen
- Clinical Immunology Research Center of Central South University, Changsha, China; Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha, China.
| | - Hong Liu
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, The Second Xiangya Hospital of Central South University, Changsha, China.
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13
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Tomaszewicz M, Ronowska A, Zieliński M, Jankowska-Kulawy A, Trzonkowski P. T regulatory cells metabolism: The influence on functional properties and treatment potential. Front Immunol 2023; 14:1122063. [PMID: 37033990 PMCID: PMC10081158 DOI: 10.3389/fimmu.2023.1122063] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 02/14/2023] [Indexed: 03/06/2023] Open
Abstract
CD4+CD25highFoxP3+ regulatory T cells (Tregs) constitute a small but substantial fraction of lymphocytes in the immune system. Tregs control inflammation associated with infections but also when it is improperly directed against its tissues or cells. The ability of Tregs to suppress (inhibit) the immune system is possible due to direct interactions with other cells but also in a paracrine fashion via the secretion of suppressive compounds. Today, attempts are made to use Tregs to treat autoimmune diseases, allergies, and rejection after bone marrow or organ transplantation. There is strong evidence that the metabolic program of Tregs is connected with the phenotype and function of these cells. A modulation towards a particular metabolic stage of Tregs may improve or weaken cells’ stability and function. This may be an essential tool to drive the immune system keeping it activated during infections or suppressed when autoimmunity occurs.
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Affiliation(s)
- Martyna Tomaszewicz
- Department of Medical Immunology, Faculty of Medicine, Medical University of Gdańsk, Gdanísk, Poland
- Poltreg S.A., Gdanísk, Poland
- *Correspondence: Martyna Tomaszewicz,
| | - Anna Ronowska
- Department of Laboratory Medicine, Faculty of Medicine, Medical University of Gdańsk, Gdanísk, Poland
| | - Maciej Zieliński
- Department of Medical Immunology, Faculty of Medicine, Medical University of Gdańsk, Gdanísk, Poland
- Poltreg S.A., Gdanísk, Poland
| | | | - Piotr Trzonkowski
- Department of Medical Immunology, Faculty of Medicine, Medical University of Gdańsk, Gdanísk, Poland
- Poltreg S.A., Gdanísk, Poland
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14
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Meitei HT, Lal G. T cell receptor signaling in the differentiation and plasticity of CD4 + T cells. Cytokine Growth Factor Rev 2023; 69:14-27. [PMID: 36028461 DOI: 10.1016/j.cytogfr.2022.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/17/2022] [Indexed: 02/07/2023]
Abstract
CD4+ T cells are critical components of the adaptive immune system. The T cell receptor (TCR) and co-receptor signaling cascades shape the phenotype and functions of CD4+ T cells. TCR signaling plays a crucial role in T cell development, antigen recognition, activation, and differentiation upon recognition of foreign- or auto-antigens. In specific autoimmune conditions, altered TCR repertoire is reported and can predispose autoimmunity with organ-specific inflammation and tissue damage. TCR signaling modulates various signaling cascades and regulates epigenetic and transcriptional regulation during homeostasis and disease conditions. Understanding the mechanism by which coreceptors and cytokine signals control the magnitude of TCR signal amplification will aid in developing therapeutic strategies to treat inflammation and autoimmune diseases. This review focuses on the role of the TCR signaling cascade and its components in the activation, differentiation, and plasticity of various CD4+ T cell subsets.
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Affiliation(s)
| | - Girdhari Lal
- National Centre for Cell Science, SPPU campus, Ganeshkhind, Pune, MH 411007, India.
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15
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Xiong H, Tang Z, Xu Y, Shi Z, Guo Z, Liu X, Tan G, Ai X, Guo Q. CD19 +CD24 highCD27 + B cell and interleukin 35 as potential biomarkers of disease activity in systemic lupus erythematosus patients. Adv Rheumatol 2022; 62:48. [PMID: 36494762 DOI: 10.1186/s42358-022-00279-8] [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: 10/12/2021] [Accepted: 11/19/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Systemic lupus erythematosus (SLE) is a systemic autoimmune disease that associates with aberrant activation of B lymphocytes and excessive autoantibodies. Interleukin 10 (IL-10)/interleukin 35 (IL-35) and IL-10/IL-35-producing regulatory B cells have been demonstrated to possess immunosuppressive functions during systemic lupus erythematosus. Here, we detected the proportion of CD19+CD24highCD27+ B cells as well as IL-10 and IL-35 levels in peripheral blood of SLE patients and healthy individuals, and investigated their relations with clinical features of SLE. METHODS 41 SLE patients and 25 healthy controls were recruited. The patients were divided into groups based on SLEDAI score, anti-dsDNA antibody, rash, nephritis and hematological disorder. Flow cytometry was used to detect the proportion of CD24hiCD27+ B cells. ELISA was used to detect serum levels of IL-10 and IL-35. RESULTS Our results showed that the CD19+CD24highCD27+ B population was decreased in active SLE patients, and anti-correlated with the disease activity. Of note, we found significant increase of IL-10 and decrease of IL-35 in SLE patients with disease activity score > 4, lupus nephritis or hematological disorders compared to those without related clinical features. CONCLUSIONS Reduced CD19+CD24highCD27+ B cells expression may be involved in the pathogenesis of SLE. Moreover, we supposed that IL-35 instead of IL-10 played a crucial role in immune regulation during SLE disease.
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Affiliation(s)
- Hui Xiong
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, Guangdong, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetic and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, Guangdong, China
| | - Zengqi Tang
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, Guangdong, China
| | - Ying Xu
- Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, Guangdong, China
| | - Zhenrui Shi
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, Guangdong, China
| | - Zhixuan Guo
- Department of Dermatology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518040, Guangdong, China
| | - Xiuting Liu
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, Guangdong, China
| | - Guozhen Tan
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, Guangdong, China
| | - Xuechen Ai
- Department of Dermatology, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518033, Guangdong, China.
| | - Qing Guo
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, Guangdong, China.
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16
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Gedaly R, Cornea V, Turcios L, Edmisson JS, Harris DD, Watt DS, Chapelin F, Khurana A, Mei X, Liu C, Taylor I, Gonzalez-Valdivieso J, Mitchel H, Ruffing A, Chishti A, Orozco G, Zwischenberger J, Evers BM, Marti F. Anti-neoplastic sulfonamides alter the metabolic homeostasis and disrupt the suppressor activity of regulatory T cells. Sci Rep 2022; 12:19112. [PMID: 36352020 PMCID: PMC9646802 DOI: 10.1038/s41598-022-23601-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 11/02/2022] [Indexed: 11/11/2022] Open
Abstract
Regulatory T cells (Tregs) are essential to maintain self-tolerance and immune homeostasis but, as components of the tumor microenvironment (TME), are also a major barrier to effective cancer immunosurveillance and immunotherapy. FH535 and its derivative Y3 are two N-aryl-benzene-sulfonamides (NABs) that inhibit HCC cell proliferation and tumor progression. However, the impact of NABs on the immune cells in the TME is not yet known. Analyses of explanted livers from patients with hepatocellular carcinoma (HCC) showed that high levels of tumor-infiltrating Tregs were associated with poor tumor differentiation. These results lead us to investigate the immunomodulatory effects of NABs in regulatory and effector T cells. Exposure of primary human Tregs to NABs induced a rapid but temporary increase of cell expansion, a gradual disruption of suppressor activity, and concomitant bioenergetics and autophagic flux dysregulations. In contrast to Tregs, no gross effects were observed in effector T cells. Addition of Rapamycin prevented the functional decay of Tregs and restored their metabolic profile, suggesting that NAB effects require the integrity of the mTOR pathway. This study revealed the immunomodulatory properties of NABs with a preferential impact on Treg activity and provided novel insights into the anti-tumor potential of sulfonamides.
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Affiliation(s)
- Roberto Gedaly
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Division of Transplantation, Section for Quality and Biostatistics, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Alliance Research Initiative (TILT Alliance), College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Department of Surgery, Transplant Center, 740 South Limestone, K 301, Rm 312, Lexington, KY, 40536-0284, USA.
| | - Virgilius Cornea
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Lilia Turcios
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Jacob S Edmisson
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Dwight D Harris
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - David S Watt
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, 40536, USA
| | - Fanny Chapelin
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Alliance Research Initiative (TILT Alliance), College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Department of Biomedical Engineering, College of Medicine, University of Kentucky, Lexington, KY, 40506, USA
| | - Aman Khurana
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Alliance Research Initiative (TILT Alliance), College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Department of Radiology, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Xiaonan Mei
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Division of Transplantation, Section for Quality and Biostatistics, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Chunming Liu
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Isaac Taylor
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Juan Gonzalez-Valdivieso
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Hunter Mitchel
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Department of Science & Health, School of Science, Health & Mathematics, Asbury University, Wilmore, KY, 40390, USA
| | - Alexis Ruffing
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
- Department of Science & Health, School of Science, Health & Mathematics, Asbury University, Wilmore, KY, 40390, USA
| | - Asir Chishti
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Gabriel Orozco
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Joseph Zwischenberger
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - B Mark Evers
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA
| | - Francesc Marti
- Department of Surgery - Transplant Division, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Lucillle Parker Markey Cancer Center, College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Alliance Research Initiative (TILT Alliance), College of Medicine, University of Kentucky, Lexington, KY, 40536, USA.
- Department of Surgery, Transplant Center, Peter P. Bosomworth Health Sciences Research Building (HSRB), Office: Room# 363 / Lab: Room# 361, 1095 Veterans Drive, Lexington, KY, 40536-0305, USA.
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Martínez-Méndez D, Huerta L, Villarreal C. Modeling the effect of environmental cytokines, nutrient conditions and hypoxia on CD4+ T cell differentiation. Front Immunol 2022; 13:962175. [PMID: 36211418 PMCID: PMC9539201 DOI: 10.3389/fimmu.2022.962175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 08/05/2022] [Indexed: 11/13/2022] Open
Abstract
Upon antigen stimulation and co-stimulation, CD4+ T lymphocytes produce soluble factors that promote the activity of other immune cells against pathogens or modified tissues; this task must be performed in presence of a variety of environmental cytokines, nutrient, and oxygen conditions, which necessarily impact T cell function. The complexity of the early intracellular processes taking place upon lymphocyte stimulation is addressed by means of a mathematical model based on a network that integrates variable microenvironmental conditions with intracellular activating, regulatory, and metabolic signals. Besides the phenotype subsets considered in previous works (Th1, Th2, Th17, and Treg) the model includes the main early events in differentiation to the TFH phenotype. The model describes how cytokines, nutrients and oxygen availability regulate the differentiation of naïve CD4+ T cells into distinct subsets. Particularly, it shows that elevated amounts of an all-type mixture of effector cytokines under optimal nutrient and oxygen availability conduces the system towards a highly-polarized Th1 or Th2 state, while reduced cytokine levels allow the expression of the Th17, Treg or TFH subsets, or even hybrid phenotypes. On the other hand, optimal levels of an all-type cytokine mixture in combination with glutamine or tryptophan restriction implies a shift from Th1 to Th2 expression, while decreased levels of the Th2-inducing cytokine IL-4 leads to the rupture of the Th1-Th2 axis, allowing the manifestation of different (or hybrid) subsets. Modeling proposes that, even under reduced levels of pro-inflammatory cytokines, the sole action of hypoxia boost Th17 expression.
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Affiliation(s)
| | - Leonor Huerta
- Instituto de Investigaciones Biomédicas, Departamento de Inmunología, Universidad Nacional Autónoma de México, Mexico City, Mexico
- *Correspondence: Carlos Villarreal, ; Leonor Huerta,
| | - Carlos Villarreal
- Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
- *Correspondence: Carlos Villarreal, ; Leonor Huerta,
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18
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Ferrara AL, Liotti A, Pezone A, De Rosa V. Therapeutic opportunities to modulate immune tolerance through the metabolism-chromatin axis. Trends Endocrinol Metab 2022; 33:507-521. [PMID: 35508518 DOI: 10.1016/j.tem.2022.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/30/2022] [Accepted: 04/05/2022] [Indexed: 11/17/2022]
Abstract
The ability of the immune system to discriminate external stimuli from self-components - namely immune tolerance - occurs through a coordinated cascade of events involving a dense network of immune cells. Among them, CD4+CD25+ T regulatory cells are crucial to balance immune homeostasis and function. Growing evidence supports the notion that energy metabolites can dictate T cell fate and function via epigenetic modifications, which affect gene expression without altering the DNA sequence. Moreover, changes in cellular metabolism couple with activation of immune pathways and epigenetic remodeling to finely tune the balance between T cell activation and tolerance. This Review summarizes these aspects and critically evaluates novel possibilities for developing therapeutic strategies to modulate immune tolerance through metabolism via epigenetic drugs.
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Affiliation(s)
- Anne Lise Ferrara
- Dipartimento di Scienze Mediche Traslazionali, Università di Napoli "Federico II", 80131 Napoli, Italy; Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131 Napoli, Italy
| | - Antonietta Liotti
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131 Napoli, Italy
| | - Antonio Pezone
- Dipartimento di Biologia, Università di Napoli "Federico II", 80131 Napoli, Italy.
| | - Veronica De Rosa
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131 Napoli, Italy.
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Zhou H, Lou F, Bai J, Sun Y, Cai W, Sun L, Xu Z, Liu Z, Zhang L, Yin Q, Zhang J, Gao Y, Wang Z, Niu L, Cai X, Deng S, Wang H, Xia L, Ginhoux F, Li Q, Wang H. A peptide encoded by pri-miRNA-31 represses autoimmunity by promoting T reg differentiation. EMBO Rep 2022; 23:e53475. [PMID: 35343645 PMCID: PMC9066071 DOI: 10.15252/embr.202153475] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 03/01/2022] [Accepted: 03/03/2022] [Indexed: 12/29/2022] Open
Abstract
Recent evidence has revealed that small polypeptides (containing fewer than 100 amino acids) can be translated from noncoding RNAs (ncRNAs), which are usually defined as RNA molecules that do not encode proteins. However, studies on functional products translated from primary transcripts of microRNA (pri-miRNA) are quite limited. Here, we describe a peptide termed miPEP31 that is encoded by pri-miRNA-31. miPEP31 is highly expressed in Foxp3+ regulatory T cells (Tregs ) and significantly promotes the differentiation of Tregs without affecting their inhibitory ability. Our results show that miPEP31 is a cell-penetrating peptide both in vitro and in vivo. miPEP31 downregulates miR-31 expression, enhances peripheral Treg induction, and dramatically suppresses experimental autoimmune encephalomyelitis. Mechanistically, we show that miPEP31 acts as a transcriptional repressor inhibiting the expression of miRNA-31, a negative regulator of Tregs . Our results reveal an indispensable role of miPEP31 in maintaining immune homeostasis by promoting Treg differentiation and also present a potential therapeutic peptide for modulating miRNA expression and treating autoimmune diseases.
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Affiliation(s)
- Hong Zhou
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fangzhou Lou
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Bai
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Sun
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Cai
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Libo Sun
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhenyao Xu
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhaoyuan Liu
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lingyun Zhang
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qianqian Yin
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Junxun Zhang
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuanyuan Gao
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhikai Wang
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liman Niu
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaojie Cai
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Siyu Deng
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong Wang
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Xia
- Core Facility of Basic Medical Sciences, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai, China
| | - Florent Ginhoux
- Shanghai Institute of Immunology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore City, Singapore
| | - Qun Li
- The Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Ruijin Hospital, Shanghai Institute of Hypertension, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Honglin Wang
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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20
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Immune Cell Contributors to the Female Sex Bias in Multiple Sclerosis and Experimental Autoimmune Encephalomyelitis. Curr Top Behav Neurosci 2022; 62:333-373. [PMID: 35467295 DOI: 10.1007/7854_2022_324] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Multiple sclerosis (MS) is a chronic, autoimmune, demyelinating disease of the central nervous system (CNS) that leads to axonal damage and accumulation of disability. Relapsing-remitting MS (RR-MS) is the most frequent presentation of MS and this form of MS is three times more prevalent in females than in males. This female bias in MS is apparent only after puberty, suggesting a role for sex hormones in this regulation; however, very little is known of the biological mechanisms that underpin the sex difference in MS onset. Experimental autoimmune encephalomyelitis (EAE) is an animal model of RR-MS that presents more severely in females in certain mouse strains and thus has been useful to study sex differences in CNS autoimmunity. Here, we overview the immunopathogenesis of MS and EAE and how immune mechanisms in these diseases differ between a male and female. We further describe how females exhibit more robust myelin-specific T helper (Th) 1 immunity in MS and EAE and how this sex bias in Th cells is conveyed by sex hormone effects on the T cells, antigen presenting cells, regulatory T cells, and innate lymphoid cell populations.
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21
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Pinzon Grimaldos A, Bini S, Pacella I, Rossi A, Di Costanzo A, Minicocci I, D’Erasmo L, Arca M, Piconese S. The role of lipid metabolism in shaping the expansion and the function of regulatory T cells. Clin Exp Immunol 2021; 208:181-192. [PMID: 35020862 PMCID: PMC9188345 DOI: 10.1093/cei/uxab033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/05/2021] [Accepted: 12/10/2021] [Indexed: 12/16/2022] Open
Abstract
Metabolic inflammation, defined as a chronic low-grade inflammation, is implicated in numerous metabolic diseases. In recent years, the role of regulatory T cells (Tregs) as key controllers of metabolic inflammation has emerged, but our comprehension on how different metabolic pathways influence Treg functions needs a deeper understanding. Here we focus on how circulating and intracellular lipid metabolism, in particular cholesterol metabolism, regulates Treg homeostasis, expansion, and functions. Cholesterol is carried through the bloodstream by circulating lipoproteins (chylomicrons, very low-density lipoproteins, low-density lipoproteins). Tregs are equipped with a wide array of metabolic sensors able to perceive and respond to changes in the lipid environment through the activation of different intracellular pathways thus conferring to these cells a crucial metabolic and functional plasticity. Nevertheless, altered cholesterol transport, as observed in genetic dyslipidemias and atherosclerosis, impairs Treg proliferation and function through defective cellular metabolism. The intracellular pathway devoted to the cholesterol synthesis is the mevalonate pathway and several studies have shown that this pathway is essential for Treg stability and suppressive activity. High cholesterol concentrations in the extracellular environment may induce massive accumulation of cholesterol inside the cell thus impairing nutrients sensors and inhibiting the mevalonate pathway. This review summarizes the current knowledge regarding the role of circulating and cellular cholesterol metabolism in the regulation of Treg metabolism and functions. In particular, we will discuss how different pathological conditions affecting cholesterol transport may affect cellular metabolism in Tregs.
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Affiliation(s)
| | | | - Ilenia Pacella
- Department of Internal Clinical, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Alessandra Rossi
- Department of Internal Clinical, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Alessia Di Costanzo
- Department of Translational and Precision Medicine, Sapienza University of Rome, Policlinico Umberto I, Rome, Italy
| | - Ilenia Minicocci
- Department of Translational and Precision Medicine, Sapienza University of Rome, Policlinico Umberto I, Rome, Italy
| | - Laura D’Erasmo
- Department of Translational and Precision Medicine, Sapienza University of Rome, Policlinico Umberto I, Rome, Italy
| | - Marcello Arca
- Department of Translational and Precision Medicine, Sapienza University of Rome, Policlinico Umberto I, Rome, Italy
| | - Silvia Piconese
- Correspondence: Silvia Piconese, Department of Internal Clinical, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy.
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22
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CAR Treg: A new approach in the treatment of autoimmune diseases. Int Immunopharmacol 2021; 102:108409. [PMID: 34863655 DOI: 10.1016/j.intimp.2021.108409] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 11/07/2021] [Accepted: 11/23/2021] [Indexed: 12/22/2022]
Abstract
Regulatory T cells (Tregs) have the role of regulating self-tolerance, and suppressing immune responses. Defects in Treg function and number can lead to in loss of tolerance or autoimmune disease. To treat or control autoimmune diseases, one of the options is to develop immune tolerance for Tregs cell therapy, which includes promotion and activation. Recently, cell-based treatment as a promising approach to increase cells function and number has been developed. Cell therapy by chimeric T antigen receptor (CAR-T) cells has shown significant efficacy in the treatment of leukemia, which has led researchers to use CAR-T cells in other diseases like autoimmune diseases. Here, we describe the existing treatments for autoimmune diseases and the available treatments based on Treg, their benefits and restrictions for implementation in clinical trials. We also discussed potential solutions to overcome these limitations. It seems novel designs of CARs to be new hope for autoimmune diseases and expected to be a potential cure option in a wide array of disease in the future. Therefore, it is very important to address this issue and increase information about it.
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23
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Ling Q, Hu X, Jiang R, Liu H, Qiu H, Jiang X, Zubreri A, Zhu H, Wan J, Liu Y. CQMUH-011 mitigates autoimmune hepatitis via inhibiting the function of T lymphocytes. Drug Dev Res 2021; 82:1111-1123. [PMID: 33733518 DOI: 10.1002/ddr.21813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 01/05/2021] [Accepted: 03/01/2021] [Indexed: 12/17/2022]
Abstract
CQMUH-011 is a modified adamantane sulfonamide compound, that inhibits macrophage proliferation and possesses anti-inflammatory properties. Here, fresh mouse splenocytes were obtained and stimulated with concanavalin A (ConA, 5 μg/ml) in vitro; and experimental autoimmune hepatitis (AIH) was induced by ConA (20 mg/kg, iv) in vivo, to clarify the protective effects of CQMUH-011 against AIH and its possible mechanisms. Our results demonstrated that CQMUH-011 pretreatment can dose-dependently inhibit the proliferation of splenocytes in vitro. In vivo, CQMUH-011 administration reduced the hepatic histopathological score and the infiltration of lymphocytes in the liver parenchyma; additionally, it downregulated the levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and pro-inflammatory cytokines interferon (IFN)-γ, tumor necrosis factor (TNF)-α, and interleukin (IL)-6 in serum, as well as those of methane dicarboxylic aldehyde and myeloperoxidase in the liver tissues. It also down-regulated the expression of p-NF-κB and related proteins in the liver tissues. Furthermore, CQMUH-011 could maintain the balance of CD3+ CD4+ /CD3+ CD8+ and decrease the percentages of CD8+ CD69+ and CD4+ CD25+/- CD69+ T-cells in the splenocytes of ConA-challenged mice. Moreover, we found thatCD4+ CD25+/- CD69+ T-cells were significantly correlated with ALT levels, especially CD4+ CD25- CD69+ T-cells. In conclusion, CQMUH-011 exerts potential protective effects against ConA-induced hepatitis, which may be partially attributed to its inhibition of T cells, especially the suppression of the proliferation of CD4+ CD25- CD69+ and CD8+ CD69+ subsets in the spleen. CQMUH-011 also reduced the early apoptosis of lymphocytes in the thymus.
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Affiliation(s)
- Qiao Ling
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, China
- The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiangnan Hu
- College of Pharmacology, Chongqing Medical University, Chongqing, China
| | - Rong Jiang
- College of Basic Medical Sciences, Chongqing Medical University, Chongqing, China
| | - Hailin Liu
- Department of Pharmacy, First People's Hospital of Chongqing Liangjiang New Area, Chongqing, China
| | - Hongmei Qiu
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, China
| | - Xuejun Jiang
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, China
| | - Abdallah Zubreri
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, China
| | - Hongda Zhu
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, China
| | - Jingyuan Wan
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, China
| | - Yingju Liu
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, China
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24
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Garbarino S, Lanteri P, Bragazzi NL, Magnavita N, Scoditti E. Role of sleep deprivation in immune-related disease risk and outcomes. Commun Biol 2021; 4:1304. [PMID: 34795404 PMCID: PMC8602722 DOI: 10.1038/s42003-021-02825-4] [Citation(s) in RCA: 114] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 10/26/2021] [Indexed: 12/11/2022] Open
Abstract
Modern societies are experiencing an increasing trend of reduced sleep duration, with nocturnal sleeping time below the recommended ranges for health. Epidemiological and laboratory studies have demonstrated detrimental effects of sleep deprivation on health. Sleep exerts an immune-supportive function, promoting host defense against infection and inflammatory insults. Sleep deprivation has been associated with alterations of innate and adaptive immune parameters, leading to a chronic inflammatory state and an increased risk for infectious/inflammatory pathologies, including cardiometabolic, neoplastic, autoimmune and neurodegenerative diseases. Here, we review recent advancements on the immune responses to sleep deprivation as evidenced by experimental and epidemiological studies, the pathophysiology, and the role for the sleep deprivation-induced immune changes in increasing the risk for chronic diseases. Gaps in knowledge and methodological pitfalls still remain. Further understanding of the causal relationship between sleep deprivation and immune deregulation would help to identify individuals at risk for disease and to prevent adverse health outcomes.
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Affiliation(s)
- Sergio Garbarino
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal/Child Sciences, University of Genoa, 16132, Genoa, Italy.
| | - Paola Lanteri
- Neurophysiology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Nicola Luigi Bragazzi
- Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, ON, M3J 1P3, Canada
| | - Nicola Magnavita
- Postgraduate School of Occupational Medicine, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
- Department of Woman/Child and Public Health, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168, Rome, Italy
| | - Egeria Scoditti
- National Research Council (CNR), Institute of Clinical Physiology (IFC), 73100, Lecce, Italy
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25
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Hatzioannou A, Boumpas A, Papadopoulou M, Papafragkos I, Varveri A, Alissafi T, Verginis P. Regulatory T Cells in Autoimmunity and Cancer: A Duplicitous Lifestyle. Front Immunol 2021; 12:731947. [PMID: 34539668 PMCID: PMC8446642 DOI: 10.3389/fimmu.2021.731947] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 08/18/2021] [Indexed: 01/08/2023] Open
Abstract
Regulatory T (Treg) cells, possess a strategic role in the maintenance of immune homeostasis, and their function has been closely linked to development of diverse pathologies including autoimmunity and cancer. Comprehensive studies in various disease contexts revealed an increased plasticity as a characteristic of Treg cells. Although Treg cell plasticity comes in various flavors, the major categories enclose the loss of Foxp3 expression, which is the master regulator of Treg cell lineage, giving rise to “ex-Treg” cells and the “fragile” Treg cells in which FOXP3 expression is retained but accompanied by the engagement of an inflammatory program and attenuation of the suppressive activity. Treg cell plasticity possess a tremendous therapeutic potential either by inducing Treg cell de-stabilization to promote anti-tumor immunity, or re-enforcing Treg cell stability to attenuate chronic inflammation. Herein, we review the literature on the Treg cell plasticity with lessons learned in autoimmunity and cancer and discuss challenges and open questions with potential therapeutic implications.
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Affiliation(s)
- Aikaterini Hatzioannou
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Athina Boumpas
- Center of Clinical, Experimental Surgery & Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Miranta Papadopoulou
- Center of Clinical, Experimental Surgery & Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Iosif Papafragkos
- Institute of Molecular Biology and Biotechnology (IMBB), Foundation for Research and Technology - Hellas (FORTH), Heraklion, Greece.,Laboratory of Immune Regulation and Tolerance, Division of Basic Sciences, Medical School, University of Crete, Heraklion, Greece
| | - Athina Varveri
- Center of Clinical, Experimental Surgery & Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Themis Alissafi
- Center of Clinical, Experimental Surgery & Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Panayotis Verginis
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, Dresden, Germany.,Center of Clinical, Experimental Surgery & Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece.,Institute of Molecular Biology and Biotechnology (IMBB), Foundation for Research and Technology - Hellas (FORTH), Heraklion, Greece.,Laboratory of Immune Regulation and Tolerance, Division of Basic Sciences, Medical School, University of Crete, Heraklion, Greece
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26
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Badam TVS, de Weerd HA, Martínez-Enguita D, Olsson T, Alfredsson L, Kockum I, Jagodic M, Lubovac-Pilav Z, Gustafsson M. A validated generally applicable approach using the systematic assessment of disease modules by GWAS reveals a multi-omic module strongly associated with risk factors in multiple sclerosis. BMC Genomics 2021; 22:631. [PMID: 34461822 PMCID: PMC8404328 DOI: 10.1186/s12864-021-07935-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 08/17/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There exist few, if any, practical guidelines for predictive and falsifiable multi-omic data integration that systematically integrate existing knowledge. Disease modules are popular concepts for interpreting genome-wide studies in medicine but have so far not been systematically evaluated and may lead to corroborating multi-omic modules. RESULT We assessed eight module identification methods in 57 previously published expression and methylation studies of 19 diseases using GWAS enrichment analysis. Next, we applied the same strategy for multi-omic integration of 20 datasets of multiple sclerosis (MS), and further validated the resulting module using both GWAS and risk-factor-associated genes from several independent cohorts. Our benchmark of modules showed that in immune-associated diseases modules inferred from clique-based methods were the most enriched for GWAS genes. The multi-omic case study using MS data revealed the robust identification of a module of 220 genes. Strikingly, most genes of the module were differentially methylated upon the action of one or several environmental risk factors in MS (n = 217, P = 10- 47) and were also independently validated for association with five different risk factors of MS, which further stressed the high genetic and epigenetic relevance of the module for MS. CONCLUSIONS We believe our analysis provides a workflow for selecting modules and our benchmark study may help further improvement of disease module methods. Moreover, we also stress that our methodology is generally applicable for combining and assessing the performance of multi-omic approaches for complex diseases.
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Affiliation(s)
- Tejaswi V S Badam
- School of Bioscience, Systems Biology Research Center, University of Skövde, Skövde, Sweden
- Bioinformatics, Department of Physics, Chemistry and Biology, Linköping university, Linköping, Sweden
| | - Hendrik A de Weerd
- School of Bioscience, Systems Biology Research Center, University of Skövde, Skövde, Sweden
- Bioinformatics, Department of Physics, Chemistry and Biology, Linköping university, Linköping, Sweden
| | - David Martínez-Enguita
- Bioinformatics, Department of Physics, Chemistry and Biology, Linköping university, Linköping, Sweden
| | - Tomas Olsson
- Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska University Hospital, SE-171 76, Stockholm, Sweden
| | - Lars Alfredsson
- Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska University Hospital, SE-171 76, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Center for Molecular Medicine, Karolinska University Hospital, SE-171 76, Stockholm, Sweden
| | - Ingrid Kockum
- Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska University Hospital, SE-171 76, Stockholm, Sweden
| | - Maja Jagodic
- Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska University Hospital, SE-171 76, Stockholm, Sweden
| | - Zelmina Lubovac-Pilav
- School of Bioscience, Systems Biology Research Center, University of Skövde, Skövde, Sweden
| | - Mika Gustafsson
- Bioinformatics, Department of Physics, Chemistry and Biology, Linköping university, Linköping, Sweden.
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27
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An Overview of Peptide-Based Molecules as Potential Drug Candidates for Multiple Sclerosis. Molecules 2021; 26:molecules26175227. [PMID: 34500662 PMCID: PMC8434400 DOI: 10.3390/molecules26175227] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/27/2021] [Accepted: 08/04/2021] [Indexed: 12/14/2022] Open
Abstract
Multiple sclerosis (MS) belongs to demyelinating diseases, which are progressive and highly debilitating pathologies that imply a high burden both on individual patients and on society. Currently, several treatment strategies differ in the route of administration, adverse events, and possible risks. Side effects associated with multiple sclerosis medications range from mild symptoms, such as flu-like or irritation at the injection site, to serious ones, such as progressive multifocal leukoencephalopathy and other life-threatening events. Moreover, the agents so far available have proved incapable of fully preventing disease progression, mostly during the phases that consist of continuous, accumulating disability. Thus, new treatment strategies, able to halt or even reverse disease progression and specific for targeting solely the pathways that contribute to the disease pathogenesis, are highly desirable. Here, we provide an overview of the recent literature about peptide-based systems tested on experimental autoimmune encephalitis (EAE) models. Since peptides are considered a unique therapeutic niche and important elements in the pharmaceutical landscape, they could open up new therapeutic opportunities for the treatment of MS.
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28
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Collier JL, Weiss SA, Pauken KE, Sen DR, Sharpe AH. Not-so-opposite ends of the spectrum: CD8 + T cell dysfunction across chronic infection, cancer and autoimmunity. Nat Immunol 2021; 22:809-819. [PMID: 34140679 PMCID: PMC9197228 DOI: 10.1038/s41590-021-00949-7] [Citation(s) in RCA: 108] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/29/2021] [Indexed: 02/05/2023]
Abstract
CD8+ T cells are critical mediators of cytotoxic effector function in infection, cancer and autoimmunity. In cancer and chronic viral infection, CD8+ T cells undergo a progressive loss of cytokine production and cytotoxicity, a state termed T cell exhaustion. In autoimmunity, autoreactive CD8+ T cells retain the capacity to effectively mediate the destruction of host tissues. Although the clinical outcome differs in each context, CD8+ T cells are chronically exposed to antigen in all three. These chronically stimulated CD8+ T cells share some common phenotypic features, as well as transcriptional and epigenetic programming, across disease contexts. A better understanding of these CD8+ T cell states may reveal novel strategies to augment clearance of chronic viral infection and cancer and to mitigate self-reactivity leading to tissue damage in autoimmunity.
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Affiliation(s)
- Jenna L Collier
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts 02115, USA and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital
| | - Sarah A Weiss
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts 02115, USA and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston MA.,Broad Institute of MIT and Harvard, Cambridge MA
| | - Kristen E Pauken
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts 02115, USA and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital
| | - Debattama R Sen
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts 02115, USA and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital.,Center for Cancer Research, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Arlene H Sharpe
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts 02115, USA and Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital.,Broad Institute of MIT and Harvard, Cambridge MA
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29
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Multiple sclerosis patients have reduced resting and increased activated CD4 +CD25 +FOXP3 +T regulatory cells. Sci Rep 2021; 11:10476. [PMID: 34006899 PMCID: PMC8131694 DOI: 10.1038/s41598-021-88448-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 04/01/2021] [Indexed: 12/26/2022] Open
Abstract
Resting and activated subpopulations of CD4+CD25+CD127loT regulatory cells (Treg) and CD4+CD25+CD127+ effector T cells in MS patients and in healthy individuals were compared. Peripheral blood mononuclear cells isolated using Ficoll Hypaque were stained with monoclonal antibodies and analysed by flow cytometer. CD45RA and Foxp3 expression within CD4+ cells and in CD4+CD25+CD127loT cells identified Population I; CD45RA+Foxp3+, Population II; CD45RA−Foxp3hi and Population III; CD45RA−Foxp3+ cells. Effector CD4+CD127+ T cells were subdivided into Population IV; memory /effector CD45RA− CD25−Foxp3− and Population V; effector naïve CD45RA+CD25−Foxp3−CCR7+ and terminally differentiated RA+ (TEMRA) effector memory cells. Chemokine receptor staining identified CXCR3+Th1-like Treg, CCR6+Th17-like Treg and CCR7+ resting Treg. Resting Treg (Population I) were reduced in MS patients, both in untreated and treated MS compared to healthy donors. Activated/memory Treg (Population II) were significantly increased in MS patients compared to healthy donors. Activated effector CD4+ (Population IV) were increased and the naïve/ TEMRA CD4+ (Population V) were decreased in MS compared to HD. Expression of CCR7 was mainly in Population I, whereas expression of CCR6 and CXCR3 was greatest in Populations II and intermediate in Population III. In MS, CCR6+Treg were lower in Population III. This study found MS is associated with significant shifts in CD4+T cells subpopulations. MS patients had lower resting CD4+CD25+CD45RA+CCR7+ Treg than healthy donors while activated CD4+CD25hiCD45RA−Foxp3hiTreg were increased in MS patients even before treatment. Some MS patients had reduced CCR6+Th17-like Treg, which may contribute to the activity of MS.
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Signals of pseudo-starvation unveil the amino acid transporter SLC7A11 as key determinant in the control of Treg cell proliferative potential. Immunity 2021; 54:1543-1560.e6. [PMID: 34004141 DOI: 10.1016/j.immuni.2021.04.014] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 01/30/2021] [Accepted: 04/14/2021] [Indexed: 02/07/2023]
Abstract
Human CD4+CD25hiFOXP3+ regulatory T (Treg) cells are key players in the control of immunological self-tolerance and homeostasis. Here, we report that signals of pseudo-starvation reversed human Treg cell in vitro anergy through an integrated transcriptional response, pertaining to proliferation, metabolism, and transmembrane solute carrier transport. At the molecular level, the Treg cell proliferative response was dependent on the induction of the cystine/glutamate antiporter solute carrier (SLC)7A11, whose expression was controlled by the nuclear factor erythroid 2-related factor 2 (NRF2). SLC7A11 induction in Treg cells was impaired in subjects with relapsing-remitting multiple sclerosis (RRMS), an autoimmune disorder associated with reduced Treg cell proliferative capacity. Treatment of RRMS subjects with dimethyl fumarate (DMF) rescued SLC7A11 induction and fully recovered Treg cell expansion. These results suggest a previously unrecognized mechanism that may account for the progressive loss of Treg cells in autoimmunity and unveil SLC7A11 as major target for the rescue of Treg cell proliferation.
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31
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Selck C, Dominguez-Villar M. Antigen-Specific Regulatory T Cell Therapy in Autoimmune Diseases and Transplantation. Front Immunol 2021; 12:661875. [PMID: 34054826 PMCID: PMC8160309 DOI: 10.3389/fimmu.2021.661875] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 04/27/2021] [Indexed: 12/30/2022] Open
Abstract
Regulatory T (Treg) cells are a heterogenous population of immunosuppressive T cells whose therapeutic potential for the treatment of autoimmune diseases and graft rejection is currently being explored. While clinical trial results thus far support the safety and efficacy of adoptive therapies using polyclonal Treg cells, some studies suggest that antigen-specific Treg cells are more potent in regulating and improving immune tolerance in a disease-specific manner. Hence, several approaches to generate and/or expand antigen-specific Treg cells in vitro or in vivo are currently under investigation. However, antigen-specific Treg cell therapies face additional challenges that require further consideration, including the identification of disease-relevant antigens as well as the in vivo stability and migratory behavior of Treg cells following transfer. In this review, we discuss these approaches and the potential limitations and describe prospective strategies to enhance the efficacy of antigen-specific Treg cell treatments in autoimmunity and transplantation.
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Affiliation(s)
- Claudia Selck
- Faculty of Medicine, Imperial College London, London, United Kingdom
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32
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Zhao J, Schank M, Wang L, Li Z, Nguyen LN, Dang X, Cao D, Khanal S, Nguyen LNT, Thakuri BKC, Ogbu SC, Lu Z, Wu XY, Morrison ZD, Gazzar ME, Liu Y, Zhang J, Ning S, Moorman JP, Yao ZQ. Mitochondrial Functions Are Compromised in CD4 T Cells From ART-Controlled PLHIV. Front Immunol 2021; 12:658420. [PMID: 34017335 PMCID: PMC8129510 DOI: 10.3389/fimmu.2021.658420] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/15/2021] [Indexed: 01/05/2023] Open
Abstract
The hallmark of HIV/AIDS is a gradual depletion of CD4 T cells. Despite effective control by antiretroviral therapy (ART), a significant subgroup of people living with HIV (PLHIV) fails to achieve complete immune reconstitution, deemed as immune non-responders (INRs). The mechanisms underlying incomplete CD4 T cell recovery in PLHIV remain unclear. In this study, CD4 T cells from PLHIV were phenotyped and functionally characterized, focusing on their mitochondrial functions. The results show that while total CD4 T cells are diminished, cycling cells are expanded in PLHIV, especially in INRs. HIV-INR CD4 T cells are more activated, displaying exhausted and senescent phenotypes with compromised mitochondrial functions. Transcriptional profiling and flow cytometry analysis showed remarkable repression of mitochondrial transcription factor A (mtTFA) in CD4 T cells from PLHIV, leading to abnormal mitochondrial and T cell homeostasis. These results demonstrate a sequential cellular paradigm of T cell over-activation, proliferation, exhaustion, senescence, apoptosis, and depletion, which correlates with compromised mitochondrial functions. Therefore, reconstituting the mtTFA pathway may provide an adjunctive immunological approach to revitalizing CD4 T cells in ART-treated PLHIV, especially in INRs.
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Affiliation(s)
- Juan Zhao
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Madison Schank
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Ling Wang
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Zhengke Li
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Lam Nhat Nguyen
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Xindi Dang
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Dechao Cao
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Sushant Khanal
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Lam Ngoc Thao Nguyen
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Bal Krishna Chand Thakuri
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Stella C Ogbu
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Zeyuan Lu
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Xiao Y Wu
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Zheng D Morrison
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Mohamed El Gazzar
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Ying Liu
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Biostatistics and Epidemiology, College of Public Health, East Tennessee State University, Johnson City, TN, United States
| | - Jinyu Zhang
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Shunbin Ning
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States
| | - Jonathan P Moorman
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Hepatitis (HCV/HBV/HIV) Program, James H. Quillen VA Medical Center, Department of Veterans Affairs, Johnson City, TN, United States
| | - Zhi Q Yao
- Center of Excellence in Inflammation, Infectious Disease and Immunity, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Department of Internal Medicine, Division of Infectious, Inflammatory and Immunologic Diseases, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, United States.,Hepatitis (HCV/HBV/HIV) Program, James H. Quillen VA Medical Center, Department of Veterans Affairs, Johnson City, TN, United States
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Li H, Lian G, Wang G, Yin Q, Su Z. A review of possible therapies for multiple sclerosis. Mol Cell Biochem 2021; 476:3261-3270. [PMID: 33886059 DOI: 10.1007/s11010-021-04119-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 02/23/2021] [Indexed: 01/22/2023]
Abstract
Multiple sclerosis (MS) is an autoimmune chronic inflammatory disease of the central nervous system with a wide range of symptoms, like executive function defect, cognitive dysfunction, blurred vision, decreased sensation, spasticity, fatigue, and other symptoms. This neurological disease is characterized by the destruction of the blood-brain barrier, loss of myelin, and damage to neurons. It is the result of immune cells crossing the blood-brain barrier into the central nervous system and attacking self-antigens. Heretofore, many treatments proved that they can retard the progression of the disease even though there is no cure. Therefore, treatments aimed at improving patients' quality of life and reducing adverse drug reactions and costs are essential. In this review, the treatment approaches to alleviate the progress of MS include the following: pharmacotherapy, antibody therapy, cell therapy, gene therapy, and surgery. The current treatment methods of MS are described in terms of the prevention of myelin shedding, the promotion of myelin regeneration, and the protection of neurons.
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Affiliation(s)
- Hui Li
- Hengyang Medical School, University of South China, Hengyang City, 421001, Hunan Province, China
| | - Gaojian Lian
- Hengyang Medical School, University of South China, Hengyang City, 421001, Hunan Province, China
| | - Guang Wang
- Hengyang Medical School, University of South China, Hengyang City, 421001, Hunan Province, China
| | - Qianmei Yin
- Hengyang Medical School, University of South China, Hengyang City, 421001, Hunan Province, China
| | - Zehong Su
- Hengyang Medical School, University of South China, Hengyang City, 421001, Hunan Province, China.
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34
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Small noncoding RNA profiling across cellular and biofluid compartments and their implications for multiple sclerosis immunopathology. Proc Natl Acad Sci U S A 2021; 118:2011574118. [PMID: 33879606 PMCID: PMC8092379 DOI: 10.1073/pnas.2011574118] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Dysregulation of microRNAs (miRNAs), a type of small noncoding RNAs (sncRNAs), has frequently been associated with multiple sclerosis (MS). However, most studies have focused on peripheral blood, and few investigated other classes of sncRNAs. To address this, we analyzed all classes of sncRNAs in matching peripheral blood mononuclear cells, plasma, cerebrospinal fluid (CSF) cells, and cell-free CSF from MS patients and controls. We demonstrate widespread alterations of small nuclear (snRNA)–derived RNAs, small nucleolar-derived RNAs (sdRNAs), transfer RNA–derived fragments, and miRNAs, particularly in CSF cells. The striking contrast between the periphery and central nervous system and between relapse and remission phases of disease highlights the importance of sncRNA-mediated mechanisms in MS, in particular alternative splicing and mRNA translation. Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease affecting the central nervous system (CNS). Small non-coding RNAs (sncRNAs) and, in particular, microRNAs (miRNAs) have frequently been associated with MS. Here, we performed a comprehensive analysis of all classes of sncRNAs in matching samples of peripheral blood mononuclear cells (PBMCs), plasma, cerebrospinal fluid (CSF) cells, and cell-free CSF from relapsing-remitting (RRMS, n = 12 in relapse and n = 11 in remission) patients, secondary progressive (SPMS, n = 6) MS patients, and noninflammatory and inflammatory neurological disease controls (NINDC, n = 11; INDC, n = 5). We show widespread changes in miRNAs and sncRNA-derived fragments of small nuclear, nucleolar, and transfer RNAs. In CSF cells, 133 out of 133 and 115 out of 117 differentially expressed sncRNAs were increased in RRMS relapse compared to remission and RRMS compared to NINDC, respectively. In contrast, 65 out of 67 differentially expressed PBMC sncRNAs were decreased in RRMS compared to NINDC. The striking contrast between the periphery and CNS suggests that sncRNA-mediated mechanisms, including alternative splicing, RNA degradation, and mRNA translation, regulate the transcriptome of pathogenic cells primarily in the CNS target organ.
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35
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de Candia P, Prattichizzo F, Garavelli S, Alviggi C, La Cava A, Matarese G. The pleiotropic roles of leptin in metabolism, immunity, and cancer. J Exp Med 2021; 218:211994. [PMID: 33857282 PMCID: PMC8056770 DOI: 10.1084/jem.20191593] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 12/11/2022] Open
Abstract
The discovery of the archetypal adipocytokine leptin and how it regulates energy homeostasis have represented breakthroughs in our understanding of the endocrine function of the adipose tissue and the biological determinants of human obesity. Investigations on leptin have also been instrumental in identifying physio-pathological connections between metabolic regulation and multiple immunological functions. For example, the description of the promoting activities of leptin on inflammation and cell proliferation have recognized the detrimental effects of leptin in connecting dysmetabolic conditions with cancer and with onset and/or progression of autoimmune disease. Here we review the multiple biological functions and complex framework of operations of leptin, discussing why and how the pleiotropic activities of this adipocytokine still pose major hurdles in the development of effective leptin-based therapeutic opportunities for different clinical conditions.
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Affiliation(s)
- Paola de Candia
- Istituto di Ricovero e Cura a Carattere Scientifico MultiMedica, Milan, Italy
| | | | - Silvia Garavelli
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche, Naples, Italy
| | - Carlo Alviggi
- Department of Neuroscience, Reproductive Science and Odontostomatology, Università di Napoli "Federico II," Naples, Italy
| | - Antonio La Cava
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA
| | - Giuseppe Matarese
- Istituto per l'Endocrinologia e l'Oncologia Sperimentale, Consiglio Nazionale delle Ricerche, Naples, Italy.,T reg Cell Lab, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli "Federico II," Naples, Italy
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36
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Blagih J, Hennequart M, Zani F. Tissue Nutrient Environments and Their Effect on Regulatory T Cell Biology. Front Immunol 2021; 12:637960. [PMID: 33868263 PMCID: PMC8050341 DOI: 10.3389/fimmu.2021.637960] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/08/2021] [Indexed: 12/13/2022] Open
Abstract
Regulatory T cells (Tregs) are essential for mitigating inflammation. Tregs are found in nearly every tissue and play either beneficial or harmful roles in the host. The availability of various nutrients can either enhance or impair Treg function. Mitochondrial oxidative metabolism plays a major role in supporting Treg differentiation and fitness. While Tregs rely heavily on oxidation of fatty acids to support mitochondrial activity, they have found ways to adapt to different tissue types, such as tumors, to survive in competitive environments. In addition, metabolic by-products from commensal organisms in the gut also have a profound impact on Treg differentiation. In this review, we will focus on the core metabolic pathways engaged in Tregs, especially in the context of tissue nutrient environments, and how they can affect Treg function, stability and differentiation.
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Affiliation(s)
| | | | - Fabio Zani
- The Francis Crick Institute, London, United Kingdom
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37
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Song J, Gong YH, Yan X, Liu Y, Zhang M, Luo J, Jiang CM, Zhang M, Shi GP, Zhu W. Regulatory T Cells Accelerate the Repair Process of Renal Fibrosis by Regulating Mononuclear Macrophages. Am J Med Sci 2021; 361:776-785. [PMID: 33667434 DOI: 10.1016/j.amjms.2021.01.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 11/18/2020] [Accepted: 01/29/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND We aimed to investigate the mechanisms of renal fibrosis and explore the effect of CD4+CD25+Foxp3+ regulatory T cells (Treg) on renal fibrosis after the obstruction was removed. METHODS Fifty-five C57BL/6 mice were randomly divided into three groups: the unilateral ureteral obstruction (UUO) group, the relief for unilateral ureteral obstruction (RUUO) group, and the RUUO+Treg group. Renal fibrosis indexes of RUUO mice were evaluated using hematoxylin and eosin (HE) and, Masson staining and immunohistochemistry after CD4+CD25+Treg cells were injected into the tail vein at the moment of recanalization. We detected the levels of Treg, M1, and M2 markers by flow cytometry, and the levels of transforming growth factor (TGF)-β1, interleukin (IL)-1β, IL-6 and IL-10 using ELISA. RESULTS The tubular necrosis score, AO value of α-SMA (smooth muscle actin), and collagen area on the 3rd and 14th days post RUUO were up-regulated compared with the 7th day post RUUO (P<0.05). After injection of Treg via tail vein, the tubular necrosis score, AO value of α-SMA, TGF-β1 level, and collagen area in the RUUO+Treg group on the 14th day were down-regulated compared with the RUUO group (P<0.05). Moreover, Treg could transform M1 macrophages into M2 macrophages, manifesting as up-regulated expression of CD206 compared with the RUUO group (P<0.05). Treg could also down-regulate the secretion of IL-6 and IL-1β while up-regulating the secretion of IL-10 in vitro compared with the M1 group (P<0.05). CONCLUSIONS The kidney could deteriorate into a state of injury and fibrosis after the obstruction was removed, and Treg could effectively protect the kidney function.
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Affiliation(s)
- Jie Song
- Department of Nephrology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China; The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China
| | - Yu-Hang Gong
- Department of Pharmacology, China Pharmaceutical University, Nanjing, China
| | - Xiang Yan
- Department of Urology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China; Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, USA
| | - Ying Liu
- Department of Nephrology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
| | - Mingzhuo Zhang
- Department of Nephrology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
| | - Jia Luo
- Department of Nephrology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Chun-Ming Jiang
- Department of Nephrology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Miao Zhang
- Department of Nephrology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China; Department of Nephrology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Guo-Ping Shi
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, USA
| | - Wei Zhu
- Department of Nephrology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China; Department of Nephrology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
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Killick J, Hay J, Morandi E, Vermeren S, Kari S, Angles T, Williams A, Damoiseaux J, Astier AL. Vitamin D/CD46 Crosstalk in Human T Cells in Multiple Sclerosis. Front Immunol 2020; 11:598727. [PMID: 33329593 PMCID: PMC7732696 DOI: 10.3389/fimmu.2020.598727] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/27/2020] [Indexed: 11/13/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS), in which T-cell migration into the CNS is key for pathogenesis. Patients with MS exhibit impaired regulatory T cell populations, and both Foxp3+ Tregs and type I regulatory T cells (Tr1) are dysfunctional. MS is a multifactorial disease and vitamin D deficiency is associated with disease. Herein, we examined the impact of 1,25(OH)2D3 on CD4+ T cells coactivated by either CD28 to induce polyclonal activation or by the complement regulator CD46 to promote Tr1 differentiation. Addition of 1,25(OH)2D3 led to a differential expression of adhesion molecules on CD28- and CD46-costimulated T cells isolated from both healthy donors or from patients with MS. 1,25(OH)2D3 favored Tr1 motility though a Vitamin D-CD46 crosstalk highlighted by increased VDR expression as well as increased CYP24A1 and miR-9 in CD46-costimulated T cells. Furthermore, analysis of CD46 expression on T cells from a cohort of patients with MS supplemented by vitamin D showed a negative correlation with the levels of circulating vitamin D. Moreover, t-Distributed Stochastic Neighbor Embedding (t-SNE) analysis allowed the visualization and identification of clusters increased by vitamin D supplementation, but not by placebo, that exhibited similar adhesion phenotype to what was observed in vitro. Overall, our data show a crosstalk between vitamin D and CD46 that allows a preferential effect of Vitamin D on Tr1 cells, providing novel key insights into the role of an important modifiable environmental factor in MS.
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Affiliation(s)
- Justin Killick
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, United Kingdom.,Edinburgh Centre for MS Research, University of Edinburgh, Edinburgh, United Kingdom
| | - Joanne Hay
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, United Kingdom.,Edinburgh Centre for MS Research, University of Edinburgh, Edinburgh, United Kingdom
| | - Elena Morandi
- Centre de Physiopathologie Toulouse-Purpan (CPTP), INSERM U1043, CNRS U5282, Université de Toulouse, Toulouse, France
| | - Sonja Vermeren
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, United Kingdom
| | - Saniya Kari
- Centre de Physiopathologie Toulouse-Purpan (CPTP), INSERM U1043, CNRS U5282, Université de Toulouse, Toulouse, France
| | - Thibault Angles
- Centre de Physiopathologie Toulouse-Purpan (CPTP), INSERM U1043, CNRS U5282, Université de Toulouse, Toulouse, France
| | - Anna Williams
- Edinburgh Centre for MS Research, University of Edinburgh, Edinburgh, United Kingdom.,Centre for Regenerative Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Jan Damoiseaux
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, Netherlands
| | - Anne L Astier
- Centre for Inflammation Research, University of Edinburgh, Edinburgh, United Kingdom.,Edinburgh Centre for MS Research, University of Edinburgh, Edinburgh, United Kingdom.,Centre de Physiopathologie Toulouse-Purpan (CPTP), INSERM U1043, CNRS U5282, Université de Toulouse, Toulouse, France
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Hu R, Lv W, Zhang S, Liu Y, Sun B, Meng Y, Kong Q, Mu L, Wang G, Zhang Y, Li H, Liu X. Combining miR-23b exposure with mesenchymal stem cell transplantation enhances therapeutic effects on EAE. Immunol Lett 2020; 229:18-26. [PMID: 33238163 DOI: 10.1016/j.imlet.2020.11.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/01/2020] [Accepted: 11/18/2020] [Indexed: 02/07/2023]
Abstract
Bone marrow mesenchymal stem cells (BMSCs) have the immuno-modulatory capacity to ameliorate autoimmune diseases, such as multiple schlerosis (MS), systemic lupus erythematosus and rheumatoid arthritis. However, BMSC-mediated immunosuppression can be challenging to achieve. The efficacy of BMSC transplantation may be augmented by an adjuvant therapy. Here, we demonstrated that treatment of mice with experimental autoimmune encephalomyelitis (EAE), a model of MS, with BMSCs over-expressing microRNA (miR)-23b provided better synergistic and longer-term therapeutic effects than treatment with traditional BMSCs. Over-expression of miR-23b enhanced the ability of BMSCs to inhibit differentiation of Th17 cells and reduced IL-17 secretion. Compared to traditional BMSCs, the miR-23b over-expressing BMSCs (miR23b-BMSCs) exhibited enhanced secretion of tumor growth factor beta 1 (TGF-β1), a cytokine that promotes the differentiation of regulatory T (Treg) cells. Pathologically, miR23b-BMSC transplantation delayed EAE progression, apparently by reducing the Th17/Treg cell ratio and inhibiting inflammatory cell infiltration across the blood-brain barrier, and thus slowing spinal cord demyelination. These results may lead to better utility of BMSCs as a treatment for autoimmune diseases.
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Affiliation(s)
- Ruixue Hu
- Department of Neurobiology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Weiqi Lv
- Department of Neurobiology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Sifan Zhang
- Department of Neurobiology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Yumei Liu
- Department of Neurobiology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Bo Sun
- Department of Neurobiology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Yanting Meng
- Department of Neurobiology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Qingfei Kong
- Department of Neurobiology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Lili Mu
- Department of Neurobiology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Guangyou Wang
- Department of Neurobiology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Yao Zhang
- Department of Neurobiology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Hulun Li
- Department of Neurobiology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Xijun Liu
- Department of Neurobiology, Harbin Medical University, Harbin, Heilongjiang, 150081, China.
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40
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Primaquine elicits Foxp3+ regulatory T cells with a superior ability to limit CNS autoimmune inflammation. J Autoimmun 2020; 114:102505. [DOI: 10.1016/j.jaut.2020.102505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/08/2020] [Accepted: 06/10/2020] [Indexed: 12/16/2022]
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41
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Mitochondrial Oxidative Damage Underlies Regulatory T Cell Defects in Autoimmunity. Cell Metab 2020; 32:591-604.e7. [PMID: 32738205 PMCID: PMC7611060 DOI: 10.1016/j.cmet.2020.07.001] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 05/14/2020] [Accepted: 07/07/2020] [Indexed: 11/22/2022]
Abstract
Regulatory T cells (Tregs) are vital for the maintenance of immune homeostasis, while their dysfunction constitutes a cardinal feature of autoimmunity. Under steady-state conditions, mitochondrial metabolism is critical for Treg function; however, the metabolic adaptations of Tregs during autoimmunity are ill-defined. Herein, we report that elevated mitochondrial oxidative stress and a robust DNA damage response (DDR) associated with cell death occur in Tregs in individuals with autoimmunity. In an experimental autoimmune encephalitis (EAE) mouse model of autoimmunity, we found a Treg dysfunction recapitulating the features of autoimmune Tregs with a prominent mtROS signature. Scavenging of mtROS in Tregs of EAE mice reversed the DDR and prevented Treg death, while attenuating the Th1 and Th17 autoimmune responses. These findings highlight an unrecognized role of mitochondrial oxidative stress in defining Treg fate during autoimmunity, which may facilitate the design of novel immunotherapies for diseases with disturbed immune tolerance.
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42
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Abstract
Although a crucial role for mitochondrial metabolism in controlling T regulatory (Treg) cell function has been recognized, its contribution during autoimmunity has not yet been fully elucidated. In this issue of Cell Metabolism, Alissafi and colleagues demonstrate that during autoimmunity, Treg cell functional alterations associate with mitochondrial oxidative stress, dysfunctional mitophagy, and enhanced DNA damage response, culminating with their cell death.
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43
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Impact of Exercise on Immunometabolism in Multiple Sclerosis. J Clin Med 2020; 9:jcm9093038. [PMID: 32967206 PMCID: PMC7564219 DOI: 10.3390/jcm9093038] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/15/2020] [Accepted: 09/18/2020] [Indexed: 02/06/2023] Open
Abstract
Multiple Sclerosis (MS) is a chronic, autoimmune condition characterized by demyelinating lesions and axonal degradation. Even though the cause of MS is heterogeneous, it is known that peripheral immune invasion in the central nervous system (CNS) drives pathology at least in the most common form of MS, relapse-remitting MS (RRMS). The more progressive forms’ mechanisms of action remain more elusive yet an innate immune dysfunction combined with neurodegeneration are likely drivers. Recently, increasing studies have focused on the influence of metabolism in regulating immune cell function. In this regard, exercise has long been known to regulate metabolism, and has emerged as a promising therapy for management of autoimmune disorders. Hence, in this review, we inspect the role of key immunometabolic pathways specifically dysregulated in MS and highlight potential therapeutic benefits of exercise in modulating those pathways to harness an anti-inflammatory state. Finally, we touch upon current challenges and future directions for the field of exercise and immunometabolism in MS.
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44
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Mannie MD, DeOca KB, Bastian AG, Moorman CD. Tolerogenic vaccines: Targeting the antigenic and cytokine niches of FOXP3 + regulatory T cells. Cell Immunol 2020; 355:104173. [PMID: 32712270 PMCID: PMC7444458 DOI: 10.1016/j.cellimm.2020.104173] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/06/2020] [Accepted: 07/10/2020] [Indexed: 02/06/2023]
Abstract
FOXP3+ regulatory T cells (Tregs) constitute a critical barrier that enforces tolerance to both the self-peptidome and the extended-self peptidome to ensure tissue-specific resistance to autoimmune, allergic, and other inflammatory disorders. Here, we review intuitive models regarding how T cell antigen receptor (TCR) specificity and antigen recognition efficiency shape the Treg and conventional T cell (Tcon) repertoires to adaptively regulate T cell maintenance, tissue-residency, phenotypic stability, and immune function in peripheral tissues. Three zones of TCR recognition efficiency are considered, including Tcon recognition of specific low-efficiency self MHC-ligands, Treg recognition of intermediate-efficiency agonistic self MHC-ligands, and Tcon recognition of cross-reactive high-efficiency agonistic foreign MHC-ligands. These respective zones of TCR recognition efficiency are key to understanding how tissue-resident immune networks integrate the antigenic complexity of local environments to provide adaptive decisions setting the balance of suppressive and immunogenic responses. Importantly, deficiencies in the Treg repertoire appear to be an important cause of chronic inflammatory disease. Deficiencies may include global deficiencies in Treg numbers or function, subtle 'holes in the Treg repertoire' in tissue-resident Treg populations, or simply Treg insufficiencies that are unable to counter an overwhelming molecular mimicry stimulus. Tolerogenic vaccination and Treg-based immunotherapy are two therapeutic modalities meant to restore dominance of Treg networks to reverse chronic inflammatory disease. Studies of these therapeutic modalities in a preclinical setting have provided insight into the Treg niche, including the concept that intermediate-efficiency TCR signaling, high IFN-β concentrations, and low IL-2 concentrations favor Treg responses and active dominant mechanisms of immune tolerance. Overall, the purpose here is to assimilate new and established concepts regarding how cognate TCR specificity of the Treg repertoire and the contingent cytokine networks provide a foundation for understanding Treg suppressive strategy.
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Affiliation(s)
- Mark D Mannie
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States.
| | - Kayla B DeOca
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States
| | - Alexander G Bastian
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States
| | - Cody D Moorman
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC 27834, United States
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45
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Immunometabolism and autoimmunity. Curr Opin Immunol 2020; 67:10-17. [PMID: 32784085 DOI: 10.1016/j.coi.2020.07.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/11/2020] [Accepted: 07/15/2020] [Indexed: 12/15/2022]
Abstract
Over the last few years, immune cell metabolism has become one of the most stimulating areas of investigation in the field of immunology. Compelling evidence has revealed that metabolic pathways are closely associated to cell functions and immune cells adopt defined metabolic programs to sustain their activity and respond to micro-environmental demands. It is now clear that alterations in cell metabolism can favour dysregulation typical of autoreactive immune cells, thus sustaining loss of immunological self-tolerance. In this short review, we highlight the main metabolic alterations associated with both innate and adaptive immune cells in autoimmune conditions, such as multiple sclerosis (MS) and type 1 diabetes (T1D). We also summarize recent findings reporting the use of pharmacological agents, which modulate the immunometabolism to possibly control immune responses during autoimmune disorders.
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46
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Jahangard L, Behzad M. Diminished functional properties of T regulatory cells in major depressive disorder: The influence of selective serotonin reuptake inhibitor. J Neuroimmunol 2020; 344:577250. [PMID: 32344162 DOI: 10.1016/j.jneuroim.2020.577250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 11/15/2022]
Abstract
The properties of CD4+CD25hi T regulatory cells (Tregs), and interleukin (IL)-2 pathway were investigated in major depressive disorder (MDD) patients treated with or without selective serotonin reuptake inhibitor (SSRI). The frequencies of FOXP3 and pSTAT5 in peripheral Tregs were found to be diminished in untreated patients (SSRI-) versus HCs (p < .001 for both), while their percentages were increased in treated patients (SSRI+) versus untreated patients (p < .001 and p = .04). The proliferation of CD4+ T cells was higher in SSRI-MDD patients versus HCs (p = .03). The SSRI-MDD patients showed a lower concentration of supernatant TGF-β than HCs (p = .001), while the production of TGF-β was enhanced in SSRI+MDD versus SSRI-MDD patients (p = .003). The number of CD45RA-expressing Tregs, the expression of JAK1 and JAK3, and the levels of IL-2 and IL-10 were similar between the patients and HCs. The study results showed that untreated patients have an impaired IL-2 signaling pathway and defective Tregs, and SSRI treatment may improve the Tregs function.
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Affiliation(s)
- Leila Jahangard
- Research Center for Behavioral Disorders and Substances Abuse, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mahdi Behzad
- Department of Immunology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
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47
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Rajaei E, Jalali MT, Shahrabi S, Asnafi AA, Pezeshki SMS. HLAs in Autoimmune Diseases: Dependable Diagnostic Biomarkers? Curr Rheumatol Rev 2020; 15:269-276. [PMID: 30644346 DOI: 10.2174/1573397115666190115143226] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 09/08/2018] [Accepted: 04/05/2019] [Indexed: 12/31/2022]
Abstract
BACKGROUND The process of antigen presentation to immune cells is an undeniable contributor to the pathogenesis of autoimmune diseases. Different studies have indicated several factors that are related to autoimmunity. Human Leukocyte Antigens (HLAs) are among such factors, which have a key role in autoimmunity because of their involvement in antigen presentation process. METHODS Relevant English language literature was searched and retrieved from Google Scholar search engine and PubMed database (1996-2018). The following keywords were used: "Human leukocyte antigen", "Behcet's syndrome", "Rheumatoid arthritis", "Systemic lupus erythematosus", "Type 1 diabetes", "Celiac Disease" and "Autoimmunity". RESULTS There is a strong association between HLA alleles and autoimmune diseases. For instance, HLA-B alleles and Behcet's syndrome are strongly correlated, and systemic lupus erythematosus and Type 1 diabetes are related to HLA-DQA1 and HLA-DQB1, respectively. CONCLUSION Association between numerous HLA alleles and autoimmune diseases may justify and rationalize their use as biomarkers as well as possible diagnostic laboratory parameters.
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Affiliation(s)
- Elham Rajaei
- Golestan Hospital Clinical Research Development Unit, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Taha Jalali
- Hyperlipidemia Research Center, Diabetes Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Saeid Shahrabi
- Department of Biochemistry and Hematology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Ali Amin Asnafi
- Thalassemia & Hemoglobinopathy Research center, Health research institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Seyed Mohammad Sadegh Pezeshki
- Thalassemia & Hemoglobinopathy Research center, Health research institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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48
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Lu DR, Wu H, Driver I, Ingersoll S, Sohn S, Wang S, Li CM, Phee H. Dynamic changes in the regulatory T-cell heterogeneity and function by murine IL-2 mutein. Life Sci Alliance 2020; 3:3/5/e201900520. [PMID: 32269069 PMCID: PMC7156283 DOI: 10.26508/lsa.201900520] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 03/30/2020] [Accepted: 03/31/2020] [Indexed: 12/30/2022] Open
Abstract
Single-cell RNA-seq analysis reveals that IL-2 mutein treatment expands multiple sub-states of regulatory T cells with superior suppressive function in mice. The therapeutic expansion of Foxp3+ regulatory T cells (Tregs) shows promise for treating autoimmune and inflammatory disorders. Yet, how this treatment affects the heterogeneity and function of Tregs is not clear. Using single-cell RNA-seq analysis, we characterized 31,908 Tregs from the mice treated with a half-life extended mutant form of murine IL-2 (IL-2 mutein, IL-2M) that preferentially expanded Tregs, or mouse IgG Fc as a control. Cell clustering analysis revealed that IL-2M specifically expands multiple sub-states of Tregs with distinct expression profiles. TCR profiling with single-cell analysis uncovered Treg migration across tissues and transcriptional changes between clonally related Tregs after IL-2M treatment. Finally, we identified IL-2M–expanded Tnfrsf9+Il1rl1+ Tregs with superior suppressive function, highlighting the potential of IL-2M to expand highly suppressive Foxp3+ Tregs.
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Affiliation(s)
- Daniel R Lu
- Genome Analysis Unit, Amgen Research, Amgen Inc, South San Francisco, CA, USA
| | - Hao Wu
- Department of Oncology and Inflammation, Amgen Research, Amgen Inc, South San Francisco, CA, USA
| | - Ian Driver
- Genome Analysis Unit, Amgen Research, Amgen Inc, South San Francisco, CA, USA
| | - Sarah Ingersoll
- Department of Oncology and Inflammation, Amgen Research, Amgen Inc, South San Francisco, CA, USA
| | - Sue Sohn
- Department of Oncology and Inflammation, Amgen Research, Amgen Inc, South San Francisco, CA, USA
| | - Songli Wang
- Genome Analysis Unit, Amgen Research, Amgen Inc, South San Francisco, CA, USA
| | - Chi-Ming Li
- Genome Analysis Unit, Amgen Research, Amgen Inc, South San Francisco, CA, USA
| | - Hyewon Phee
- Department of Oncology and Inflammation, Amgen Research, Amgen Inc, South San Francisco, CA, USA
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49
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Kunkl M, Frascolla S, Amormino C, Volpe E, Tuosto L. T Helper Cells: The Modulators of Inflammation in Multiple Sclerosis. Cells 2020; 9:cells9020482. [PMID: 32093011 PMCID: PMC7072830 DOI: 10.3390/cells9020482] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 02/06/2023] Open
Abstract
Multiple sclerosis (MS) is a chronic neurodegenerative disease characterized by the progressive loss of axonal myelin in several areas of the central nervous system (CNS) that is responsible for clinical symptoms such as muscle spasms, optic neuritis, and paralysis. The progress made in more than one decade of research in animal models of MS for clarifying the pathophysiology of MS disease validated the concept that MS is an autoimmune inflammatory disorder caused by the recruitment in the CNS of self-reactive lymphocytes, mainly CD4+ T cells. Indeed, high levels of T helper (Th) cells and related cytokines and chemokines have been found in CNS lesions and in cerebrospinal fluid (CSF) of MS patients, thus contributing to the breakdown of the blood-brain barrier (BBB), the activation of resident astrocytes and microglia, and finally the outcome of neuroinflammation. To date, several types of Th cells have been discovered and designated according to the secreted lineage-defining cytokines. Interestingly, Th1, Th17, Th1-like Th17, Th9, and Th22 have been associated with MS. In this review, we discuss the role and interplay of different Th cell subpopulations and their lineage-defining cytokines in modulating the inflammatory responses in MS and the approved as well as the novel therapeutic approaches targeting T lymphocytes in the treatment of the disease.
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Affiliation(s)
- Martina Kunkl
- Department of Biology and Biotechnology Charles Darwin, Sapienza University, 00185 Rome, Italy
- Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University, 00185 Rome, Italy
| | - Simone Frascolla
- Department of Biology and Biotechnology Charles Darwin, Sapienza University, 00185 Rome, Italy
- Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University, 00185 Rome, Italy
| | - Carola Amormino
- Department of Biology and Biotechnology Charles Darwin, Sapienza University, 00185 Rome, Italy
- Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University, 00185 Rome, Italy
| | - Elisabetta Volpe
- Neuroimmunology Unit, IRCCS Santa Lucia Foundation, 00143 Rome, Italy
| | - Loretta Tuosto
- Department of Biology and Biotechnology Charles Darwin, Sapienza University, 00185 Rome, Italy
- Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University, 00185 Rome, Italy
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50
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Colamatteo A, Carbone F, Bruzzaniti S, Galgani M, Fusco C, Maniscalco GT, Di Rella F, de Candia P, De Rosa V. Molecular Mechanisms Controlling Foxp3 Expression in Health and Autoimmunity: From Epigenetic to Post-translational Regulation. Front Immunol 2020; 10:3136. [PMID: 32117202 PMCID: PMC7008726 DOI: 10.3389/fimmu.2019.03136] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/23/2019] [Indexed: 12/12/2022] Open
Abstract
The discovery of the transcription factor Forkhead box-p3 (Foxp3) has shed fundamental insights into the understanding of the molecular determinants leading to generation and maintenance of T regulatory (Treg) cells, a cell population with a key immunoregulatory role. Work over the past few years has shown that fine-tuned transcriptional and epigenetic events are required to ensure stable expression of Foxp3 in Treg cells. The equilibrium between phenotypic plasticity and stability of Treg cells is controlled at the molecular level by networks of transcription factors that bind regulatory sequences, such as enhancers and promoters, to regulate Foxp3 expression. Recent reports have suggested that specific modifications of DNA and histones are required for the establishment of the chromatin structure in conventional CD4+ T (Tconv) cells for their future differentiation into the Treg cell lineage. In this review, we discuss the molecular events that control Foxp3 gene expression and address the associated alterations observed in human diseases. Also, we explore how Foxp3 influences the gene expression programs in Treg cells and how unique properties of Treg cell subsets are defined by other transcription factors.
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Affiliation(s)
- Alessandra Colamatteo
- Treg Cell Laboratory, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", Naples, Italy
| | - Fortunata Carbone
- Laboratorio di Immunologia, Istituto per L'Endocrinologia e L'Oncologia Sperimentale, Consiglio Nazionale Delle Ricerche (IEOS-CNR), Naples, Italy.,Unità di NeuroImmunologia, Fondazione Santa Lucia, Rome, Italy
| | - Sara Bruzzaniti
- Laboratorio di Immunologia, Istituto per L'Endocrinologia e L'Oncologia Sperimentale, Consiglio Nazionale Delle Ricerche (IEOS-CNR), Naples, Italy.,Dipartimento di Biologia, Università degli Studi di Napoli "Federico II", Naples, Italy
| | - Mario Galgani
- Treg Cell Laboratory, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", Naples, Italy.,Laboratorio di Immunologia, Istituto per L'Endocrinologia e L'Oncologia Sperimentale, Consiglio Nazionale Delle Ricerche (IEOS-CNR), Naples, Italy
| | - Clorinda Fusco
- Treg Cell Laboratory, Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", Naples, Italy
| | - Giorgia Teresa Maniscalco
- Dipartimento di Neurologia, Centro Regionale Sclerosi Multipla, Azienda Ospedaliera "A. Cardarelli", Naples, Italy
| | - Francesca Di Rella
- Clinical and Experimental Senology, Istituto Nazionale Tumori, IRCCS, Fondazione G. Pascale, Naples, Italy
| | | | - Veronica De Rosa
- Laboratorio di Immunologia, Istituto per L'Endocrinologia e L'Oncologia Sperimentale, Consiglio Nazionale Delle Ricerche (IEOS-CNR), Naples, Italy.,Unità di NeuroImmunologia, Fondazione Santa Lucia, Rome, Italy
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