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Hendrix E, Vande Vyver M, Holt M, Smolders I. Regulatory T cells as a possible new target in epilepsy? Epilepsia 2024; 65:2227-2237. [PMID: 38888867 DOI: 10.1111/epi.18038] [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: 01/23/2024] [Revised: 05/24/2024] [Accepted: 05/29/2024] [Indexed: 06/20/2024]
Abstract
Epilepsy is a complex chronic brain disorder with diverse clinical features that can be caused by various triggering events, such as infections, head trauma, or stroke. During epileptogenesis, various abnormalities are observed, such as altered cellular homeostasis, imbalance of neurotransmitters, tissue changes, and the release of inflammatory mediators, which in combination lead to spontaneous recurrent seizures. Regulatory T cells (Tregs), a subtype of CD4+Foxp3+ T cells, best known for their key function in immune suppression, also seem to play a role in attenuating neurodegeneration and suppressing pathological inflammation in several brain disease states. Considering that epilepsy is also highly associated with neuronal damage and neuroinflammation, modulation of Tregs may be an interesting way to modify the disease course of epilepsy and needs further investigation. In this review, we will describe the currently available information on Tregs in epilepsy.
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Affiliation(s)
- Evelien Hendrix
- Department of Pharmaceutical Chemistry, Drug Analysis, and Drug Information, Research Group Experimental Pharmacology, Center for Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Maxime Vande Vyver
- Department of Pharmaceutical Chemistry, Drug Analysis, and Drug Information, Research Group Experimental Pharmacology, Center for Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium
- Department of Neurology and Bru-BRAIN, Universitair Ziekenhuis Brussel, Brussels, Belgium
- NEUR Research Group, Center of Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Matthew Holt
- Instituto de Investigação e Inovação Em Saúde, Porto, Portugal
| | - Ilse Smolders
- Department of Pharmaceutical Chemistry, Drug Analysis, and Drug Information, Research Group Experimental Pharmacology, Center for Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium
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2
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Zheng Y, Lebid A, Chung L, Fu J, Wang X, Otrocol A, Zarif JC, Yu H, Llosa NJ, Pardoll DM. Targeting the activin receptor 1C on CD4+ T cells for cancer immunotherapy. Oncoimmunology 2024; 13:2297503. [PMID: 38235319 PMCID: PMC10793694 DOI: 10.1080/2162402x.2023.2297503] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 12/18/2023] [Indexed: 01/19/2024] Open
Abstract
Activins, members of the TGF-beta superfamily, have been isolated and identified in the endocrine system, but have not been substantially investigated in the context of the immune system and endocrine-unrelated cancers. Here, we demonstrated that tumor-bearing mice had elevated systemic activin levels, which correlated directly with tumor burden. Likewise, cancer patients have elevated plasma activin levels compared to healthy controls. We observed that both tumor and immune cells could be sources of activins. Importantly, our in vitro studies suggest that activins promote differentiation of naïve CD4+ cells into Foxp3-expressing induced regulatory T cells (Tregs), particularly when TGF-beta was limited in the culture medium. Database and qRT-PCR analysis of sorted major immune cell subsets in mice revealed that activin receptor 1c (ActRIC) was uniquely expressed on Tregs and that both ActRIC and ActRIIB (activin receptor 2b) were highly upregulated during iTreg differentiation. ActRIC-deficient naïve CD4+ cells were found to be defective in iTreg generation both in vitro and in vivo. Treg suppression assays were also performed, and ActRIC deficiency did not change the function or stability of iTregs. Mice lacking ActRIC or mice treated with monoclonal anti-ActRIC antibody were more resistant to tumor progression than wild-type controls. This phenotype was correlated with reduced expression of Foxp3 in CD4+ cells in the tumor microenvironment. In light of the information presented above, blocking activin-ActRIC signaling is a promising and disease-specific strategy to impede the accumulation of immunosuppressive iTregs in cancer. Therefore, it is a potential candidate for cancer immunotherapy.
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Affiliation(s)
- Ying Zheng
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Andriana Lebid
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Liam Chung
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Juan Fu
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Xiaoxu Wang
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Andrea Otrocol
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jelani C. Zarif
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Hong Yu
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nicolas J. Llosa
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Drew M. Pardoll
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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3
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Ogata K, Moriyama M, Kawado T, Yoshioka H, Yano A, Matsumura-Kawashima M, Nakamura S, Kawano S. Extracellular vesicles of iPS cells highly capable of producing HGF and TGF-β1 can attenuate Sjögren's syndrome via innate immunity regulation. Cell Signal 2024; 113:110980. [PMID: 37981065 DOI: 10.1016/j.cellsig.2023.110980] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 10/13/2023] [Accepted: 11/13/2023] [Indexed: 11/21/2023]
Abstract
Previous studies have demonstrated that extracellular vesicles (EVs) from dental pulp stem cells (DPSCs), which release abundant hepatocyte growth factor (HGF) and transforming growth factor-β1 (TGF-β1), contribute to the pathogenesis of Sjögren's syndrome (SS). However, depending on the condition of DPSCs, this effect is often not achieved. In this study, we established induced pluripotent stem (iPS) cells highly capable of releasing HGF and TGF-β1 and iPS cells barely capable of releasing them, and administered each EV to SS model mice to see if there was a difference in therapeutic effect. EVs were collected from each iPS cell and their characteristics and shapes were examined. When they were administered to SS model mice, the EVs from iPS cells with higher concentrations of HGF and TGF-β1 showed significantly reduced inflammatory cell infiltration in salivary gland tissues, increased saliva volume, and decreased anti-SS-A and anti-SS-B antibodies. A comprehensive search of microRNA arrays for differences among those EVs revealed that EVs from iPS cells with higher concentrations of HGF and TGF-β1 contained more of the let-7 family. Thereafter, we examined the expression of toll-like receptors (TLRs), which are said to be regulated by the let-7 family, by qPCR, and found decreased TLR4 expression. Focusing on MAPK, a downstream signaling pathway, we examined cytokine concentrations in mouse macrophage culture supernatants and Western blotting of murine splenic tissues and found higher concentrations of anti-inflammatory cytokines in the EVs-treated group and decreased TLR4, NF-κB and phosphorylation (p)-p-38 MAPK expression by Western blotting. Alternatively, p-Smad2/3 was upregulated in the EVs-treated group. Our findings suggest that the let-7 family in EVs may suppress the expression of TLR4 and NF-κB, which may be involved in the suppression of MAPK-mediated pro-inflammatory cytokine production.
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Affiliation(s)
- Kenichi Ogata
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Dent-craniofacial Development and Regeneration Research Center, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Department of Dentistry and Oral Surgery, Karatsu Red Cross Hospital, 2430 Watada, Karatsu, Saga 847-8588, Japan.
| | - Masafumi Moriyama
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; OBT Research Center, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Tatsuya Kawado
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Hiroki Yoshioka
- Department of Pharmacy Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani, Gifu 509-0293, Japan
| | - Aiko Yano
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Mayu Matsumura-Kawashima
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Seiji Nakamura
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Shintaro Kawano
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Ji W, Wang W, Li P, Liu Y, Zhang B, Qi F. sFgl2 gene-modified MSCs regulate the differentiation of CD4 + T cells in the treatment of autoimmune hepatitis. Stem Cell Res Ther 2023; 14:316. [PMID: 37924141 PMCID: PMC10625288 DOI: 10.1186/s13287-023-03550-x] [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: 10/18/2022] [Accepted: 10/27/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND Autoimmune hepatitis (AIH) is a T-cell-mediated autoimmune liver disease that can lead to liver injury and has a poor long-term prognosis. Mesenchymal stromal cells (MSCs) have immunosuppressive effects and can treat AIH. CD4+ T cells express the unique inhibitory Fcγ receptor (FcγRIIB), which is the only receptor for the immunosuppressive factor soluble fibrinogen-like protein 2 (sFgl2). This study aimed to examine the therapeutic effect of sFgl2 gene-modified MSCs (sFgl2-MSCs) on AIH. METHODS MSCs were obtained from the inguinal fat of mice and cocultured with CD4+ T cells sorted from mouse spleens. FcγRIIB expression on CD4+ T cells was determined by flow cytometry. sFgl2 expression in MSCs transfected with lentiviral vectors carrying the Fgl2 gene and a green fluorescent protein-encoding sequence was determined by enzyme-linked immunosorbent assay. The percentages of Th1 cells Th17 cells and regulatory T cells (Tregs) were determined by flow cytometry And the levels of p-SHP2 and p-SMAD2/3 were detected by Western blotting after the cells were cocultured with MSCs for 72 h. After locating MSCs by in vivo imaging Con A-induced experimental AIH mice were randomly divided into 4 groups and administered different treatments. After 24 h histopathological scores liver function and cytokine levels were examined and the proportions of CD4+ T cells CD8+ T cells Tregs Th17 cells and Th1 cells in the spleen and liver were determined by flow cytometry. In addition immunohistochemical staining was used to detect the liver infiltration of T-bet-, Foxp3- and RORγ-positive cells. RESULTS FcγRIIB expression on CD4+ T cells was upregulated after coculture with MSCs. After coculture with sFgl2-MSCs, the proportion of Tregs among CD4+ T cells increased, the proportion of Th17 and Th1 cells decreased, and the levels of p-SHP2 and p-SMAD2/3 increased. In vivo, sFgl2-MSCs significantly improved liver function, decreased liver necrosis area, decreased tumor necrosis factor-α, interleukin (IL)-1β and IL-6 expression, increased IL-10 expression, reduced liver infiltration of CD4+ T and CD8+ T cells, increased the proportion of Tregs and reduced the proportions of Th17 and Th1 cells in mice. CONCLUSION By promoting Tregs differentiation and inhibiting Th17 and Th1 cell differentiation, sFgl2 gene-modified MSCs have a more powerful therapeutic effect on Con A-induced experimental AIH and may represent a strategy for the clinical treatment of AIH.
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Affiliation(s)
- Wenbin Ji
- Department of General Surgery, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, Tianjin, 300052, China
| | - Weiwei Wang
- Department of General Surgery, Tianjin Medical University Baodi Clinical College, Guangchuan Road, Baodi, Tianjin, 301800, China
| | - Peiyuan Li
- Department of General Surgery, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, Tianjin, 300052, China
| | - Yanhong Liu
- Department of General Surgery, Tianjin Union Medical Center, Tianjin, China
- Tianjin Key Laboratory of General Surgery in Construction, Tianjin Union Medical Center, Tianjin, 300121, China
| | - Baotong Zhang
- Department of General Surgery, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, Tianjin, 300052, China
| | - Feng Qi
- Department of General Surgery, Tianjin Medical University General Hospital, No. 154, Anshan Road, Heping District, Tianjin, 300052, China.
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Tang C, Hu W. The role of Th17 and Treg cells in normal pregnancy and unexplained recurrent spontaneous abortion (URSA): New insights into immune mechanisms. Placenta 2023; 142:18-26. [PMID: 37603948 DOI: 10.1016/j.placenta.2023.08.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 08/08/2023] [Accepted: 08/12/2023] [Indexed: 08/23/2023]
Abstract
Recurrent spontaneous abortion (RSA) has various causes, including chromosomal abnormalities, a prethrombotic state, and abnormal uterine anatomical factors. However, in about 50% of cases, the cause remains unknown and is referred to as unexplained recurrent spontaneous abortion (URSA). The fetus is protected from rejection by the maternal system, acting as an allogeneic gene, and immune tolerance serves as a crucial mechanism. The Th17/Treg cell paradigm's emergence as a new subpopulation of CD4+ T cells, interacting with one another, plays an essential role in the immune microenvironment and the body's defense system. This Th17/Treg cell model helps to explain the pathology of recurrent miscarriage that could not be accounted for by the original immune mechanism based on the Th1/Th2 model. Furthermore, the plasticity of Th17 and Treg cells holds innovative significance in autoimmunity and abortion. This paper reviews the role of Th17/Treg cellular immune response in the maintaining normal pregnancy and understanding unexplained recurrent spontaneous abortion.
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Affiliation(s)
- Cen Tang
- Kunming Medical University, Kunming, Yunnan, 650000, China
| | - Wanqin Hu
- Kunming Medical University Second Affiliated Hospital, Obstetrics Department, Kunming, Yunnan, 650000, China.
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Suga K, Suto A, Tanaka S, Sugawara Y, Kageyama T, Ishikawa J, Sanayama Y, Ikeda K, Furuta S, Kagami SI, Iwata A, Hirose K, Suzuki K, Ohara O, Nakajima H. TAp63, a methotrexate target in CD4+ T cells, suppresses Foxp3 expression and exacerbates autoimmune arthritis. JCI Insight 2023; 8:164778. [PMID: 37212280 PMCID: PMC10322677 DOI: 10.1172/jci.insight.164778] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 04/07/2023] [Indexed: 05/23/2023] Open
Abstract
Methotrexate (MTX) is a standard, first-line therapy for rheumatoid arthritis (RA); however, its precise mechanisms of action other than antifolate activity are largely unknown. We performed DNA microarray analyses of CD4+ T cells in patients with RA before and after MTX treatment and found that TP63 was the most significantly downregulated gene after MTX treatment. TAp63, an isoform of TP63, was highly expressed in human IL-17-producing Th (Th17) cells and was suppressed by MTX in vitro. Murine TAp63 was expressed at high levels in Th cells and at lower levels in thymus-derived Treg cells. Importantly, TAp63 knockdown in murine Th17 cells ameliorated the adoptive transfer arthritis model. RNA-Seq analyses of human Th17 cells overexpressing TAp63 and those with TAp63 knockdown identified FOXP3 as a possible TAp63 target gene. TAp63 knockdown in CD4+ T cells cultured under Th17 conditions with low-dose IL-6 increased Foxp3 expression, suggesting that TAp63 balances Th17 cells and Treg cells. Mechanistically, TAp63 knockdown in murine induced Treg (iTreg) cells promoted hypomethylation of conserved noncoding sequence 2 (CNS2) of the Foxp3 gene and enhanced the suppressive function of iTreg cells. Reporter analyses revealed that TAp63 suppressed the activation of the Foxp3 CNS2 enhancer. Collectively, TAp63 suppresses Foxp3 expression and exacerbates autoimmune arthritis.
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Affiliation(s)
- Kensuke Suga
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
| | - Akira Suto
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
- Institute for Advanced Academic Research, Chiba University, Chiba, Japan
| | - Shigeru Tanaka
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
| | - Yutaka Sugawara
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
| | - Takahiro Kageyama
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
| | - Junichi Ishikawa
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
| | - Yoshie Sanayama
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
| | - Kei Ikeda
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
| | - Shunsuke Furuta
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
| | - Shin-Ichiro Kagami
- Research Center for Allergy and Clinical Immunology, Asahi General Hospital, Asahi, Chiba, Japan
| | - Arifumi Iwata
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
| | - Koichi Hirose
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
| | - Kotaro Suzuki
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
| | - Osamu Ohara
- Department of Applied Genomics, Kazusa DNA Research Institute, Kisarazu, Chiba, Japan
| | - Hiroshi Nakajima
- Department of Allergy and Clinical Immunology, Graduate School of Medicine, and
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Chen R, Yang H, Dai J, Zhang M, Lu G, Zhang M, Yu H, Zheng M, He Q. The biological functions of maternal-derived extracellular vesicles during pregnancy and lactation and its impact on offspring health. Clin Nutr 2023; 42:493-504. [PMID: 36857958 DOI: 10.1016/j.clnu.2023.02.007] [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: 10/15/2022] [Revised: 01/25/2023] [Accepted: 02/09/2023] [Indexed: 02/18/2023]
Abstract
During pregnancy and lactation, mothers provide not only nutrients, but also many bioactive components for their offspring through placenta and breast milk, which are essential for offspring development. Extracellular vesicles (EVs) are nanovesicles containing a variety of biologically active molecules and participate in the intercellular communication. In the past decade, an increasing number of studies have reported that maternal-derived EVs play a crucial role in offspring growth, development, and immune system establishment. Hereby, we summarized the characteristics of EVs; biological functions of maternal-derived EVs during pregnancy, including implantation, decidualization, placentation, embryo development and birth of offspring; biological function of breast milk-derived EVs (BMEs) on infant oral and intestinal diseases, immune system, neurodevelopment, and metabolism. In summary, emerging studies have revealed that maternal-derived EVs play a pivotal role in offspring health. As such, maternal-derived EVs may be used as promising biomarkers in offspring disease diagnosis and treatment. However, existing research on maternal-derived EVs and offspring health is largely limited to animal and cellular studies. Evidence from human studies is needed.
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Affiliation(s)
- Rui Chen
- School of Public Health, Wuhan University, Wuhan, China
| | | | - Jie Dai
- School of Public Health, Wuhan University, Wuhan, China
| | - Minzhe Zhang
- School of Public Health, Wuhan University, Wuhan, China
| | - Gaolei Lu
- School of Public Health, Wuhan University, Wuhan, China
| | - Minjie Zhang
- School of Public Health, Wuhan University, Wuhan, China
| | - Hongjie Yu
- School of Public Health, Wuhan University, Wuhan, China
| | - Miaobing Zheng
- School of Nutrition and Exercise, Deakin University, Melbourne, Australia
| | - Qiqiang He
- School of Public Health, Wuhan University, Wuhan, China; Wuhan University Shenzhen Research Institute, Shenzhen, China; Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, China.
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8
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Olson KE, Mosley RL, Gendelman HE. The potential for treg-enhancing therapies in nervous system pathologies. Clin Exp Immunol 2023; 211:108-121. [PMID: 36041453 PMCID: PMC10019130 DOI: 10.1093/cei/uxac084] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/28/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
While inflammation may not be the cause of disease, it is well known that it contributes to disease pathogenesis across a multitude of peripheral and central nervous system disorders. Chronic and overactive inflammation due to an effector T-cell-mediated aberrant immune response ultimately leads to tissue damage and neuronal cell death. To counteract peripheral and neuroinflammatory responses, research is being focused on regulatory T cell enhancement as a therapeutic target. Regulatory T cells are an immunosuppressive subpopulation of CD4+ T helper cells essential for maintaining immune homeostasis. The cells play pivotal roles in suppressing immune responses to maintain immune tolerance. In so doing, they control T cell proliferation and pro-inflammatory cytokine production curtailing autoimmunity and inflammation. For nervous system pathologies, Treg are known to affect the onset and tempo of neural injuries. To this end, we review recent findings supporting Treg's role in disease, as well as serving as a therapeutic agent in multiple sclerosis, myasthenia gravis, Guillain-Barre syndrome, Parkinson's and Alzheimer's diseases, and amyotrophic lateral sclerosis. An ever-broader role for Treg in the control of neurologic disease has been shown for traumatic brain injury, stroke, neurotrophic pain, epilepsy, and psychiatric disorders. To such ends, this review serves to examine the role played by Tregs in nervous system diseases with a focus on harnessing their functional therapeutic role(s).
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Affiliation(s)
- Katherine E Olson
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - R L Mosley
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
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Doyon-Laliberté K, Aranguren M, Byrns M, Chagnon-Choquet J, Paniconi M, Routy JP, Tremblay C, Quintal MC, Brassard N, Kaufmann DE, Poudrier J, Roger M. Excess BAFF Alters NR4As Expression Levels and Breg Function of Human Precursor-like Marginal Zone B-Cells in the Context of HIV-1 Infection. Int J Mol Sci 2022; 23:15142. [PMID: 36499469 PMCID: PMC9741410 DOI: 10.3390/ijms232315142] [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: 11/09/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 12/04/2022] Open
Abstract
We have reported excess B-cell activating factor (BAFF) in the blood of HIV-infected progressors, which was concomitant with increased frequencies of precursor-like marginal zone (MZp) B-cells, early on and despite antiretroviral therapy (ART). In controls, MZp possess a strong B-cell regulatory (Breg) potential. They highly express IL-10, the orphan nuclear receptors (NR)4A1, NR4A2 and NR4A3, as well as the ectonucleotidases CD39 and CD73, all of which are associated with the regulation of inflammation. Furthermore, we have shown MZp regulatory function to involve CD83 signaling. To address the impact of HIV infection and excessive BAFF on MZp Breg capacities, we have performed transcriptomic analyses by RNA-seq of sorted MZp B-cells from the blood of HIV-infected progressors. The Breg profile and function of blood MZp B-cells from HIV-infected progressors were assessed by flow-cytometry and light microscopy high-content screening (HCS) analyses, respectively. We report significant downregulation of NR4A1, NR4A2, NR4A3 and CD83 gene transcripts in blood MZp B-cells from HIV-infected progressors when compared to controls. NR4A1, NR4A3 and CD83 protein expression levels and Breg function were also downregulated in blood MZp B-cells from HIV-infected progressors and not restored by ART. Moreover, we observe decreased expression levels of NR4A1, NR4A3, CD83 and IL-10 by blood and tonsillar MZp B-cells from controls following culture with excess BAFF, which significantly diminished their regulatory function. These findings, made on a limited number of individuals, suggest that excess BAFF contributes to the alteration of the Breg potential of MZp B-cells during HIV infection and possibly in other situations where BAFF is found in excess.
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Affiliation(s)
- Kim Doyon-Laliberté
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Matheus Aranguren
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Michelle Byrns
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Josiane Chagnon-Choquet
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Matteo Paniconi
- Service d’Aide à la Formation Interdisciplinaire et à la Réussite Étudiante (SAFIRE), Faculté des Arts et Sciences de l’Université de Montréal, Montréal, QC H3T 1N8, Canada
| | - Jean-Pierre Routy
- Department of Medicine, McGill University Health Centre, McGill University, Montréal, QC H4A 3J1, Canada
| | - Cécile Tremblay
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Marie-Claude Quintal
- Centre Hospitalier Ste-Justine de l’Université de Montréal, Montréal, QC H3T 1C5, Canada
| | - Nathalie Brassard
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Daniel E. Kaufmann
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Médecine de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Johanne Poudrier
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Michel Roger
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
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10
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Chen XY, Zhu XJ, Chen M, Lu MP, Wang ML, Yin M, Chen RX, Wu ZF, Bu DY, Zhang ZD, Cheng L. GARP Polymorphisms Associated with Susceptibility to House Dust Mite-Sensitized Persistent Allergic Rhinitis in a Chinese Population. J Asthma Allergy 2022; 15:1369-1381. [PMID: 36196093 PMCID: PMC9527031 DOI: 10.2147/jaa.s366815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 08/27/2022] [Indexed: 11/23/2022] Open
Abstract
Background Genetic variants in GARP (also known as LRRC32) have been reported to have significant associations with asthma and eczema in special populations, but little is known about allergic rhinitis. This study purposes to evaluate the association of single nucleotide polymorphisms (SNPs) in GARP with house dust mite (HDM)-sensitized persistent allergic rhinitis (PER) in a population of Han Chinese. Methods In this hospital-based case–control study, 534 HDM-sensitized PER patients and 451 healthy controls were recruited from East China. In this population, six SNPs in GARP were identified. Serum total and specific IgE levels were measured with ImmunoCAP. Secondary structure and minimum free energy were predicted by RNAfold. Results rs79525962 was associated with the risk of HDM-sensitized PER (P < 0.05). The individuals with CT+TT genotype demonstrated a higher risk of HDM-sensitized PER than those with CC genotype (adjusted OR = 1.393, 95% CI = 1.019–1.904). The homozygous genotype CC of rs3781699 rendered a lower risk of HDM-sensitized PER than the wild-type genotype AA (adjusted OR = 0.646, 95% CI = 0.427–0.976); however, the genotype and allele frequencies of rs3781699 demonstrated no associations with HDM-sensitized PER (P > 0.05). rs79525962 increased the risk of HDM-sensitized PER in the subgroup aged ≥16 years (adjusted OR = 1.745, 95% CI = 1.103–2.760), and this high risk was also found in the females (adjusted OR = 1.708, 95% CI = 1.021–2.856). The G-C haplotype of rs1320646-rs3781699 rendered a lower risk of HDM-sensitized PER than the common haplotype G-A (adjusted OR = 0.819, 95% CI = 0.676–0.993). The secondary structure of GARP altered in response to different genotypes of rs79525962 and rs3781699. Conclusion SNP rs79525962 in the GARP gene marks a risk locus of HDM-sensitized PER in Chinese Hans.
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Affiliation(s)
- Xin-Yuan Chen
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Xin-Jie Zhu
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Min Chen
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Mei-Ping Lu
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Mei-Lin Wang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, People’s Republic of China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Min Yin
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
- International Centre for Allergy Research, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Ruo-Xi Chen
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Zhong-Fei Wu
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Dong-Yun Bu
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Zheng-Dong Zhang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, People’s Republic of China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, People’s Republic of China
- Zheng-Dong Zhang, Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing, 211166, People’s Republic of China, Email
| | - Lei Cheng
- Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
- International Centre for Allergy Research, Nanjing Medical University, Nanjing, People’s Republic of China
- Correspondence: Lei Cheng, Department of Otorhinolaryngology & Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, People’s Republic of China, Email
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11
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Raugh A, Allard D, Bettini M. Nature vs. nurture: FOXP3, genetics, and tissue environment shape Treg function. Front Immunol 2022; 13:911151. [PMID: 36032083 PMCID: PMC9411801 DOI: 10.3389/fimmu.2022.911151] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 07/11/2022] [Indexed: 12/11/2022] Open
Abstract
The importance of regulatory T cells (Tregs) in preventing autoimmunity has been well established; however, the precise alterations in Treg function in autoimmune individuals and how underlying genetic associations impact the development and function of Tregs is still not well understood. Polygenetic susceptibly is a key driving factor in the development of autoimmunity, and many of the pathways implicated in genetic association studies point to a potential alteration or defect in regulatory T cell function. In this review transcriptomic control of Treg development and function is highlighted with a focus on how these pathways are altered during autoimmunity. In combination, observations from autoimmune mouse models and human patients now provide insights into epigenetic control of Treg function and stability. How tissue microenvironment influences Treg function, lineage stability, and functional plasticity is also explored. In conclusion, the current efficacy and future direction of Treg-based therapies for Type 1 Diabetes and other autoimmune diseases is discussed. In total, this review examines Treg function with focuses on genetic, epigenetic, and environmental mechanisms and how Treg functions are altered within the context of autoimmunity.
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Affiliation(s)
- Arielle Raugh
- Department of Pathology, Microbiology and Immunology, University of Utah, Salt Lake City, UT, United States
- Translational Biology and Molecular Medicine Graduate Program, Baylor College of Medicine, Houston, TX, United States
| | - Denise Allard
- Department of Pathology, Microbiology and Immunology, University of Utah, Salt Lake City, UT, United States
| | - Maria Bettini
- Department of Pathology, Microbiology and Immunology, University of Utah, Salt Lake City, UT, United States
- *Correspondence: Maria Bettini,
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12
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Long X, Luo C, Zhu Z. Role of CNSs Conserved Distal Cis-Regulatory Elements in CD4 + T Cell Development and Differentiation. Front Immunol 2022; 13:919550. [PMID: 35812386 PMCID: PMC9260786 DOI: 10.3389/fimmu.2022.919550] [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: 04/13/2022] [Accepted: 05/24/2022] [Indexed: 11/17/2022] Open
Abstract
Naïve CD4+ T cells differentiate into diverse subsets of effector cells and perform various homeostatic and immune functions. The differentiation and maintenance of these different subsets are controlled through the upregulation and silencing of master genes. Mechanistic studies of the regulation of these master genes identified conserved and distal intronic regulatory elements, which are accessible subsets of conserved non-coding sequences (CNSs), acting as cis-regulatory elements in a lineage-specific manner that controls the function of CD4+ T cells. Abnormal CNS activity is associated with incorrect expression of master genes and development of autoimmune diseases or immune suppression. Here, we describe the function of several conserved, distal cis-regulatory elements at the Foxp3, Rorc, Il-4, Il-10 and Il-17 gene locus were shown to play important roles in CD4+ T cells differentiation. Together, this review briefly outlines currently known CNSs, with a focus on their regulations and functions in complexes modulating the differentiation and maintenance of various CD4+ T cells subsets, in health and disease contexts, as well as during the conversion of T regulatory cells to T helper 17 cells. This article will provide a comprehensive view of CNSs conserved distal cis-regulatory elements at a few loci that control aspects of CD4+ T cells function.
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Affiliation(s)
- Xunyi Long
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Medical College of Nanchang University, Nanchang, China
| | - Chen Luo
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Medical College of Nanchang University, Nanchang, China
- *Correspondence: Zhengming Zhu, ; Chen Luo,
| | - Zhengming Zhu
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China
- *Correspondence: Zhengming Zhu, ; Chen Luo,
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13
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Lee AY, Foulsham W. Regulatory T Cells: Therapeutic Opportunities in Uveitis. FRONTIERS IN OPHTHALMOLOGY 2022; 2:901144. [PMID: 38983511 PMCID: PMC11182269 DOI: 10.3389/fopht.2022.901144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 04/28/2022] [Indexed: 07/11/2024]
Abstract
Regulatory T cells (Tregs) are critical for the maintenance of immune tolerance and the suppression of excessive inflammation. Many inflammatory autoimmune disorders, including autoimmune uveitis, involve the loss of the suppressive capacities of Tregs. Over the past decade, Tregs' therapeutic potential in uveitis has garnered increasing attention. Specific subsets of Tregs, including TIGIT+ and PD-1+ Tregs, have emerged as potent immunosuppressors that may be particularly well-suited to cell-based therapeutics. Studies have elucidated the interaction between Treg development and the gut microbiome as well as various intracellular signaling pathways. Numerous cell-based therapies and therapeutic molecules have been proposed and investigated using the murine experimental autoimmune uveitis (EAU) model. However, certain challenges remain to be addressed. Studies involving the use of Tregs in human patients with uveitis are lacking, and there are concerns regarding Tregs' production and purification for practical use, their plasticity towards inflammatory phenotypes, immunogenicity, and tumorigenicity. Nevertheless, recent research has brought Tregs closer to yielding viable treatment options for uveitis.
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Affiliation(s)
| | - William Foulsham
- Department of Ophthalmology, Weill Cornell Medical College, New York, NY, United States
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14
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Luo S, Wu R, Li Q, Zhang G. Epigenetic Regulation of IFI44L Expression in Monocytes Affects the Functions of Monocyte-Derived Dendritic Cells in Systemic Lupus Erythematosus. J Immunol Res 2022; 2022:4053038. [PMID: 35592687 PMCID: PMC9113863 DOI: 10.1155/2022/4053038] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 04/09/2022] [Accepted: 04/25/2022] [Indexed: 12/14/2022] Open
Abstract
Background Interferon-inducible 44 like (IFI44L) is a newly discovered interferon-induced gene and has been reported to overexpress in systemic lupus erythematosus (SLE). However, little is known about the mechanism and function of IFI44L overexpression in SLE. In this study, we aimed to investigate the epigenetic mechanism of IFI44L overexpression in SLE monocyte and its potential functions contributing to the pathogenesis of SLE. Methods We collected peripheral blood from 20 SLE patients and 20 healthy controls. Expression of IFI44L in monocytes and effects of different signal transducers and activators of transcription (STAT) pathway inhibitors on IFI44L expression were detected. Recruitment of ten-eleven translocation protein (TET) by STAT and methylation of IFI44L promoter were evaluated. Effects of IFI44L overexpression on the expression of surface markers on monocyte-derived dendritic cells (Mo-DCs) were analyzed. T cell differentiation mediated by Mo-DCs and related cytokines production were also analyzed. Results Expression level of IFI44L was significantly increased in SLE monocyte. IFI44L expression was decreased most significantly in STAT3 inhibitor compared with other inhibitors. STAT3 regulated IFI44L expression and interacted with TET2 which induced DNA demethylation of IFI44L promoter. Overexpression of IFI44L in monocyte enhanced the maturation and functions of Mo-DC by upregulating costimulatory receptors and inducing Th1/Th17-related cytokines when cocultured with naïve CD4+ T cells. Conclusion TET2 recruited by STAT3 induces DNA demethylation of IFI44L promoter which promotes IFI44L overexpression in monocyte contributing to the pathogenesis of SLE by enhancing the maturation and functions of Mo-DC. IFI44L is expected to become a new target for treatment of SLE.
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Affiliation(s)
- Shuaihantian Luo
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital of Central South University, Changsha, China
| | - Ruifang Wu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital of Central South University, Changsha, China
| | - Qianwen Li
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital of Central South University, Changsha, China
| | - Guiying Zhang
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital of Central South University, Changsha, China
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15
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Nutrition during Pregnancy and Lactation: Epigenetic Effects on Infants’ Immune System in Food Allergy. Nutrients 2022; 14:nu14091766. [PMID: 35565735 PMCID: PMC9103859 DOI: 10.3390/nu14091766] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/12/2022] [Accepted: 04/21/2022] [Indexed: 12/12/2022] Open
Abstract
Food allergies are an increasing health problem worldwide. They are multifactorial diseases, in which the genome alone does not explain the development of the disease, but a genetic predisposition and various environmental factors contribute to their onset. Environmental factors, in particular nutritional factors, in the early stages of life are recognized as key elements in the etiology of food allergies. There is growing evidence advising that nutrition can affect the risk of developing food allergies through epigenetic mechanisms elicited by the nutritional factors themselves or by modulating the gut microbiota and its functional products. Gut microbiota and postbiotics can in turn influence the risk of food allergy development through epigenetic mechanisms. Epigenetic programming accounts not only for the short-term effects on the individual’s health status, but also for those observed in adulthood. The first thousand days of life represent an important window of susceptibility in which environmental factors, including nutritional ones, can influence the risk of developing allergies through epigenetic mechanisms. From this point of view, it represents an interesting window of opportunity and intervention. This review reports the main nutritional factors that in the early stages of life can influence immune oral tolerance through the modulation of epigenetic mechanisms.
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16
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Bozzini S, Del Fante C, Morosini M, Berezhinskiy HO, Auner S, Cattaneo E, Della Zoppa M, Pandolfi L, Cacciatore R, Perotti C, Hoetzenecker K, Jaksch P, Benazzo A, Meloni F. Mechanisms of Action of Extracorporeal Photopheresis in the Control of Bronchiolitis Obliterans Syndrome (BOS): Involvement of Circulating miRNAs. Cells 2022; 11:cells11071117. [PMID: 35406680 PMCID: PMC8997705 DOI: 10.3390/cells11071117] [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: 02/11/2022] [Revised: 03/22/2022] [Accepted: 03/24/2022] [Indexed: 11/16/2022] Open
Abstract
Clinical evidence suggests an improvement or stabilization of lung function in a fraction of patients with bronchiolitis obliterans syndrome (BOS) treated by extracorporeal photopheresis (ECP); however, few studies have explored the epigenetic and molecular regulation of this therapy. The aim of present study was to evaluate whether a specific set of miRNAs were significantly regulated by ECP. Total RNA was isolated from serum of patients with established BOS grade 1–2 prior to the start and after 6 months of ECP treatment. We observed a significant downregulation of circulating hsa-miR-155-5p, hsa-miR-146a-5p and hsa-miR-31-5p in BOS patients at the start of ECP when compared to healthy subjects. In responders, increased miR-155-5p and decreased miR-23b-3p expression levels at 6 months were found. SMAD4 mRNA was found to be a common target of these two miRNAs in prediction pathways analysis, and a significant downregulation was found at 6 months in PBMCs of a subgroup of ECP-treated patients. According to previous evidence, the upregulation of miR-155 might be correlated with a pro-tolerogenic modulation of the immune system. Our analysis also suggests that SMAD4 might be a possible target for miR-155-5p. Further longitudinal studies are needed to address the possible role of miR-155 and its downstream targets.
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Affiliation(s)
- Sara Bozzini
- Laboratory of Respiratory Disease, Cell Biology Section, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (M.M.); (E.C.); (M.D.Z.); (L.P.)
- Correspondence: ; Tel.: +39-0382-501-001
| | - Claudia Del Fante
- Immunohaematology and Transfusion Service, Apheresis and Cell Therapy Unit, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (C.D.F.); (R.C.); (C.P.)
| | - Monica Morosini
- Laboratory of Respiratory Disease, Cell Biology Section, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (M.M.); (E.C.); (M.D.Z.); (L.P.)
| | - Hatice Oya Berezhinskiy
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Wien, Austria; (H.O.B.); (S.A.); (K.H.); (P.J.); (A.B.)
| | - Sophia Auner
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Wien, Austria; (H.O.B.); (S.A.); (K.H.); (P.J.); (A.B.)
| | - Elena Cattaneo
- Laboratory of Respiratory Disease, Cell Biology Section, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (M.M.); (E.C.); (M.D.Z.); (L.P.)
| | - Matteo Della Zoppa
- Laboratory of Respiratory Disease, Cell Biology Section, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (M.M.); (E.C.); (M.D.Z.); (L.P.)
| | - Laura Pandolfi
- Laboratory of Respiratory Disease, Cell Biology Section, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (M.M.); (E.C.); (M.D.Z.); (L.P.)
| | - Rosalia Cacciatore
- Immunohaematology and Transfusion Service, Apheresis and Cell Therapy Unit, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (C.D.F.); (R.C.); (C.P.)
| | - Cesare Perotti
- Immunohaematology and Transfusion Service, Apheresis and Cell Therapy Unit, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (C.D.F.); (R.C.); (C.P.)
| | - Konrad Hoetzenecker
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Wien, Austria; (H.O.B.); (S.A.); (K.H.); (P.J.); (A.B.)
| | - Peter Jaksch
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Wien, Austria; (H.O.B.); (S.A.); (K.H.); (P.J.); (A.B.)
| | - Alberto Benazzo
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Wien, Austria; (H.O.B.); (S.A.); (K.H.); (P.J.); (A.B.)
| | - Federica Meloni
- UOS Transplant Center, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy;
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17
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Marginal Zone B-Cell Populations and Their Regulatory Potential in the Context of HIV and Other Chronic Inflammatory Conditions. Int J Mol Sci 2022; 23:ijms23063372. [PMID: 35328792 PMCID: PMC8949885 DOI: 10.3390/ijms23063372] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/11/2022] [Accepted: 03/17/2022] [Indexed: 12/12/2022] Open
Abstract
Inflammation in the context of Human Immunodeficiency Virus (HIV) establishes early and persists beyond antiretroviral therapy (ART). As such, we have shown excess B-cell activating factor (BAFF) in the blood of HIV-infected progressors, as soon as in the acute phase, and despite successful ART. Excess BAFF was associated with deregulation of the B-cell compartment; notably, with increased frequencies of a population sharing features of both transitional immature (TI) and marginal zone (MZ) B-cells, we termed Marginal Zone precursor-like (MZp). We have reported similar observations with HIV-transgenic mice, Simian Immunodeficiency Virus (SIV)-infected macaques, and more recently, with HIV-infected Beninese commercial sex workers, which suggests that excess BAFF and increased frequencies of MZp B-cells are reliable markers of inflammation in the context of HIV. Importantly, we have recently shown that in healthy individuals, MZps present an important regulatory B-cell (Breg) profile and function. Herein, we wish to review our current knowledge on MZ B-cell populations, especially their Breg status, and that of other B-cell populations sharing similar features. BAFF and its analog A Proliferation-Inducing Ligand (APRIL) are important in shaping the MZ B-cell pool; moreover, the impact that excess BAFF—encountered in the context of HIV and several chronic inflammatory conditions—may exert on MZ B-cell populations, Breg and antibody producing capacities is a threat to the self-integrity of their antibody responses and immune surveillance functions. As such, deregulations of MZ B-cell populations contribute to autoimmune manifestations and the development of MZ lymphomas (MZLs) in the context of HIV and other inflammatory diseases. Therefore, further comprehending the mechanisms regulating MZ B-cell populations and their functions could be beneficial to innovative therapeutic avenues that could be deployed to restore MZ B-cell immune competence in the context of chronic inflammation involving excess BAFF.
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18
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Zhang Q, Fang Y, Lv C, Zhu Y, Xia Y, Wei Z, Dai Y. Norisoboldine induces the development of Treg cells by promoting fatty acid oxidation-mediated H3K27 acetylation of Foxp3. FASEB J 2022; 36:e22230. [PMID: 35233835 DOI: 10.1096/fj.202101643r] [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: 10/23/2021] [Revised: 01/21/2022] [Accepted: 02/14/2022] [Indexed: 01/15/2023]
Abstract
Norisoboldine (NOR), an alkaloid isolated from Radix Lindera, was previously reported to promote the differentiation of regulatory T cells (Treg cells), an important subtype of lymphocytes capable of controlling autoimmune diseases. The present study was performed to explore the mechanism of NOR in the view of cellular metabolism. A global metabolomic analysis indicated that NOR preferentially altered the fatty acid oxidation (FAO) pathway and elevated the content of related metabolites during Treg cell differentiation. The detection of oxygen consumption rate (OCR) and mRNA expression of FAO-related enzymes demonstrated that NOR promoted FAO in the early stage of Treg cell differentiation. Consistently, pharmacological or genetic inhibition of FAO markedly diminished the induction of NOR on Treg cell differentiation. Furthermore, NOR was shown to elevate the level of acetyl-CoA derived from FAO and acetylation of lysine 27 on histone 3 (H3K27) at the Foxp3 promoter and CNS2 regions. A knockdown of CPT1, the rate-limiting enzyme of FAO, weakened the promotion of NOR on the development, acetyl-CoA level, and acetylation of H3K27 of Treg cells in vitro and in the mice with collagen-induced arthritis, and attenuated the anti-arthritic effect of NOR. These findings demonstrate that NOR induces the development of Treg cells through promoting FAO, therefore, facilitating gene transcription of Foxp3 via acetyl-CoA-mediated H3K27 acetylation modification, and FAO might serve as a novel target to induce Treg cell development.
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Affiliation(s)
- Qin Zhang
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yulai Fang
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Changjun Lv
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yanrong Zhu
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yufeng Xia
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Zhifeng Wei
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yue Dai
- Department of Pharmacology of Chinese Materia Medica, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
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19
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Lozano-Ruiz B, Tzoumpa A, Martínez-Cardona C, Moreno D, Aransay AM, Cortazar AR, Picó J, Peiró G, Lozano J, Zapater P, Francés R, González-Navajas JM. Absent in Melanoma 2 (AIM2) Regulates the Stability of Regulatory T Cells. Int J Mol Sci 2022; 23:ijms23042230. [PMID: 35216346 PMCID: PMC8876789 DOI: 10.3390/ijms23042230] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 02/08/2022] [Accepted: 02/15/2022] [Indexed: 01/09/2023] Open
Abstract
Absent in melanoma 2 (AIM2) is a cytosolic dsDNA sensor that has been broadly studied for its role in inflammasome assembly. However, little is known about the function of AIM2 in adaptive immune cells. The purpose of this study was to investigate whether AIM2 has a cell-intrinsic role in CD4+ T cell differentiation or function. We found that AIM2 is expressed in both human and mouse CD4+ T cells and that its expression is affected by T cell receptor (TCR) activation. Naïve CD4+ T cells from AIM2-deficient (Aim2−/−) mice showed higher ability to maintain forkhead box P3 (FOXP3) expression in vitro, while their capacity to differentiate into T helper (Th)1, Th2 or Th17 cells remained unaltered. Transcriptional profiling by RNA sequencing showed that AIM2 might affect regulatory T cell (Treg) stability not by controlling the expression of Treg signature genes, but through the regulation of the cell’s metabolism. In addition, in a T cell transfer model of colitis, Aim2−/−-naïve T cells induced less severe body weight loss and displayed a higher ability to differentiate into FOXP3+ cells in vivo. In conclusion, we show that AIM2 function is not confined to innate immune cells but is also important in CD4+ T cells. Our data identify AIM2 as a regulator of FOXP3+ Treg cell differentiation and as a potential intervention target for restoring T cell homeostasis.
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Affiliation(s)
- Beatriz Lozano-Ruiz
- Alicante Institute for Health and Biomedical Research (ISABIAL), Hospital General Universitario Dr. Balmis, 03010 Alicante, Spain; (B.L.-R.); (A.T.); (C.M.-C.); (D.M.); (J.P.); (G.P.); (P.Z.); (R.F.)
| | - Amalia Tzoumpa
- Alicante Institute for Health and Biomedical Research (ISABIAL), Hospital General Universitario Dr. Balmis, 03010 Alicante, Spain; (B.L.-R.); (A.T.); (C.M.-C.); (D.M.); (J.P.); (G.P.); (P.Z.); (R.F.)
| | - Claudia Martínez-Cardona
- Alicante Institute for Health and Biomedical Research (ISABIAL), Hospital General Universitario Dr. Balmis, 03010 Alicante, Spain; (B.L.-R.); (A.T.); (C.M.-C.); (D.M.); (J.P.); (G.P.); (P.Z.); (R.F.)
| | - David Moreno
- Alicante Institute for Health and Biomedical Research (ISABIAL), Hospital General Universitario Dr. Balmis, 03010 Alicante, Spain; (B.L.-R.); (A.T.); (C.M.-C.); (D.M.); (J.P.); (G.P.); (P.Z.); (R.F.)
| | - Ana M. Aransay
- Networked Biomedical Research Center for Hepatic and Digestive Diseases (CIBERehd), Institute of Health Carlos III, 28029 Madrid, Spain; (A.M.A.); (J.L.)
- Center for Cooperative Research in Biosciences (CIC bioGUNE), 48160 Derio, Spain;
| | - Ana R. Cortazar
- Center for Cooperative Research in Biosciences (CIC bioGUNE), 48160 Derio, Spain;
| | - Joanna Picó
- Alicante Institute for Health and Biomedical Research (ISABIAL), Hospital General Universitario Dr. Balmis, 03010 Alicante, Spain; (B.L.-R.); (A.T.); (C.M.-C.); (D.M.); (J.P.); (G.P.); (P.Z.); (R.F.)
| | - Gloria Peiró
- Alicante Institute for Health and Biomedical Research (ISABIAL), Hospital General Universitario Dr. Balmis, 03010 Alicante, Spain; (B.L.-R.); (A.T.); (C.M.-C.); (D.M.); (J.P.); (G.P.); (P.Z.); (R.F.)
- Pathology Unit, Hospital General Universitario Dr. Balmis, 03010 Alicante, Spain
| | - Juanjo Lozano
- Networked Biomedical Research Center for Hepatic and Digestive Diseases (CIBERehd), Institute of Health Carlos III, 28029 Madrid, Spain; (A.M.A.); (J.L.)
| | - Pedro Zapater
- Alicante Institute for Health and Biomedical Research (ISABIAL), Hospital General Universitario Dr. Balmis, 03010 Alicante, Spain; (B.L.-R.); (A.T.); (C.M.-C.); (D.M.); (J.P.); (G.P.); (P.Z.); (R.F.)
- Networked Biomedical Research Center for Hepatic and Digestive Diseases (CIBERehd), Institute of Health Carlos III, 28029 Madrid, Spain; (A.M.A.); (J.L.)
- Department of Pharmacology, Pediatrics and Organic Chemistry, University Miguel Hernández (UMH), 03202 Elche, Spain
- Institute of Research, Development and Innovation in Healthcare Biotechnology in Elche (IDiBE), University Miguel Hernández (UMH), 03202 Elche, Spain
| | - Rubén Francés
- Alicante Institute for Health and Biomedical Research (ISABIAL), Hospital General Universitario Dr. Balmis, 03010 Alicante, Spain; (B.L.-R.); (A.T.); (C.M.-C.); (D.M.); (J.P.); (G.P.); (P.Z.); (R.F.)
- Networked Biomedical Research Center for Hepatic and Digestive Diseases (CIBERehd), Institute of Health Carlos III, 28029 Madrid, Spain; (A.M.A.); (J.L.)
- Institute of Research, Development and Innovation in Healthcare Biotechnology in Elche (IDiBE), University Miguel Hernández (UMH), 03202 Elche, Spain
- Department of Clinical Medicine, University Miguel Hernández (UMH), 03202 Elche, Spain
| | - José M. González-Navajas
- Alicante Institute for Health and Biomedical Research (ISABIAL), Hospital General Universitario Dr. Balmis, 03010 Alicante, Spain; (B.L.-R.); (A.T.); (C.M.-C.); (D.M.); (J.P.); (G.P.); (P.Z.); (R.F.)
- Networked Biomedical Research Center for Hepatic and Digestive Diseases (CIBERehd), Institute of Health Carlos III, 28029 Madrid, Spain; (A.M.A.); (J.L.)
- Department of Pharmacology, Pediatrics and Organic Chemistry, University Miguel Hernández (UMH), 03202 Elche, Spain
- Institute of Research, Development and Innovation in Healthcare Biotechnology in Elche (IDiBE), University Miguel Hernández (UMH), 03202 Elche, Spain
- Correspondence: ; Tel.: +34-965913928
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Haddadi MH, Negahdari B. Clinical and diagnostic potential of regulatory T cell markers: From bench to bedside. Transpl Immunol 2021; 70:101518. [PMID: 34922022 DOI: 10.1016/j.trim.2021.101518] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 12/16/2022]
Abstract
Regulatory T (Treg) cells are heterogeneous immune cell populations residing in the thymus and peripheral lymphatic tissues. This immune cell plays a central and critical role in maintaining immune tolerance against undesirable immune responses. Treg cells' phenotypic heterogeneity caused by different pathological conditions makes their identification and differentiation from non-suppressive T cells difficult. On the other hand, using nonspecific markers and variable isolation panels leads to undesirable outcomes. There are a variety of markers to identify functional Treg cells, including CD25, FOXP3, and CTLA-4, as well as the epigenetic signature of forkhead box P3 (FOXP3), which can be used for both natural and induced Treg cells. Phenotypic heterogeneity is a major concern in Treg purification when using nonspecific markers, which can be addressed by utilizing suitable isolation panels designed for different purposes. This review presents a clinical framework for Treg detection and isolation, focusing on Treg markers such as CD25, FOXP3, CTLA-4, CD127, GPA-33, and TSDR demethylation to design Treg isolation panels suitable for different Treg therapy purposes. The current review also highlights new reliable Treg markers applicable for different purposes.
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Affiliation(s)
| | - Babak Negahdari
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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21
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Dutta A, Venkataganesh H, Love PE. New Insights into Epigenetic Regulation of T Cell Differentiation. Cells 2021; 10:3459. [PMID: 34943965 PMCID: PMC8700096 DOI: 10.3390/cells10123459] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 12/13/2022] Open
Abstract
Immature CD4- CD8- thymocytes progress through several developmental steps in the thymus, ultimately emerging as mature CD4+ (helper) or CD8+ (cytotoxic) T cells. Activation of naïve CD4+ and CD8+ T cells in the presence of specific cytokines results in the induction of transcriptional programs that result in their differentiation into effector or memory cells and in the case of CD4+ T cells, the adoption of distinct T-helper fates. Previous studies have shown that histone modification and DNA methylation play important roles in each of these events. More recently, the roles of specific epigenetic regulators in T cell differentiation have been clarified. The identification of the epigenetic modifications and modifiers that control mature T cell differentiation and specification has also provided further insights into how dysregulation of these processes can lead to cancer or autoimmune diseases. In this review, we summarize recent findings that have provided new insights into epigenetic regulation of T cell differentiation in both mice and humans.
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Affiliation(s)
- Avik Dutta
- Section on Hematopoiesis and Lymphocyte Biology, Eunice Kennedy Shriver, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA; (A.D.); (H.V.)
| | - Harini Venkataganesh
- Section on Hematopoiesis and Lymphocyte Biology, Eunice Kennedy Shriver, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA; (A.D.); (H.V.)
- Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Paul E. Love
- Section on Hematopoiesis and Lymphocyte Biology, Eunice Kennedy Shriver, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA; (A.D.); (H.V.)
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22
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Ghosh S, Roy K, Rajalingam R, Martin S, Pal C. Cytokines in the generation and function of regulatory T cell subsets in leishmaniasis. Cytokine 2021; 147:155266. [DOI: 10.1016/j.cyto.2020.155266] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/30/2020] [Accepted: 08/24/2020] [Indexed: 01/12/2023]
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23
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Yero A, Shi T, Farnos O, Routy JP, Tremblay C, Durand M, Tsoukas C, Costiniuk CT, Jenabian MA. Dynamics and epigenetic signature of regulatory T-cells following antiretroviral therapy initiation in acute HIV infection. EBioMedicine 2021; 71:103570. [PMID: 34500304 PMCID: PMC8429924 DOI: 10.1016/j.ebiom.2021.103570] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/10/2021] [Accepted: 08/19/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND HIV infection promotes the expansion of immunosuppressive regulatory T-cells (Tregs), contributing to immune dysfunction, tissue fibrosis and disease progression. Early antiretroviral treatment (ART) upon HIV infection improves CD4 count and decreases immune activation. However, Treg dynamics and their epigenetic regulation following early ART initiation remain understudied. METHODS Treg subsets were characterized by flow cytometry in 103 individuals, including untreated HIV-infected participants in acute and chronic phases, ART-treated in early infection, elite controllers (ECs), immunological controllers (ICs), and HIV-uninfected controls. The methylation status of six regulatory regions of the foxp3 gene was assessed using MiSeq technology. FINDINGS Total Treg frequency increased overtime during HIV infection, which was normalized in early ART recipients. Tregs in untreated individuals expressed higher levels of activation and immunosuppressive markers (CD39, and LAP(TGF-β1)), which remained unchanged following early ART. Expression of gut migration markers (CCR9, Integrin-β7) by Tregs was elevated during untreated HIV infection, while they declined with the duration of ART but not upon early ART initiation. Notably, gut-homing Tregs expressing LAP(TGF-β1) and CD39 remained higher despite early treatment. Additionally, the increase in LAP(TGF-β1)+ Tregs overtime were consistent with higher demethylation of conserved non-coding sequence (CNS)-1 in the foxp3 gene. Remarkably, LAP(TGF-β1)-expressing Tregs in ECs were significantly higher than in uninfected subjects, while the markers of Treg activation and gut migration were not different. INTERPRETATION Early ART initiation was unable to control the levels of immunosuppressive Treg subsets and their gut migration potential, which could ultimately contribute to gut tissue fibrosis and HIV disease progression. FUNDING This study was funded by the Canadian Institutes of Health Research (CIHR, grant MOP 142294) and in part by the AIDS and Infectious Diseases Network of the Réseau SIDA et maladies infectieuses du Fonds de recherche du Québec-Santé (FRQ-S).
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Affiliation(s)
- Alexis Yero
- Department of Biological Sciences and CERMO-FC Research Centre, Université du Québec à Montréal (UQAM), Montreal, QC, Canada
| | - Tao Shi
- Department of Biological Sciences and CERMO-FC Research Centre, Université du Québec à Montréal (UQAM), Montreal, QC, Canada
| | - Omar Farnos
- Department of Biological Sciences and CERMO-FC Research Centre, Université du Québec à Montréal (UQAM), Montreal, QC, Canada
| | - Jean-Pierre Routy
- Research Institute of McGill University Health Centre, Montreal, QC, Canada; Chronic Viral Illness Service, Division of Infectious Disease, Department of Medicine, Glen Site, McGill University Health Centre, Montreal, QC, Canada
| | - Cécile Tremblay
- CHUM Research Centre, Montreal, QC, Canada; Department of Microbiology, Infectiology and Immunology, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada
| | | | - Christos Tsoukas
- Research Institute of McGill University Health Centre, Montreal, QC, Canada; Division of Clinical Immunology and Allergy, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Cecilia T Costiniuk
- Research Institute of McGill University Health Centre, Montreal, QC, Canada; Department of Microbiology & Immunology, McGill University, Montreal, QC, Canada
| | - Mohammad-Ali Jenabian
- Department of Biological Sciences and CERMO-FC Research Centre, Université du Québec à Montréal (UQAM), Montreal, QC, Canada; Department of Microbiology, Infectiology and Immunology, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada; Department of Microbiology & Immunology, McGill University, Montreal, QC, Canada.
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24
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Pompura SL, Wagner A, Kitz A, LaPerche J, Yosef N, Dominguez-Villar M, Hafler DA. Oleic acid restores suppressive defects in tissue-resident FOXP3 Tregs from patients with multiple sclerosis. J Clin Invest 2021; 131:138519. [PMID: 33170805 DOI: 10.1172/jci138519] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 11/05/2020] [Indexed: 12/21/2022] Open
Abstract
FOXP3+ Tregs rely on fatty acid β-oxidation-driven (FAO-driven) oxidative phosphorylation (OXPHOS) for differentiation and function. Recent data demonstrate a role for Tregs in the maintenance of tissue homeostasis, with tissue-resident Tregs possessing tissue-specific transcriptomes. However, specific signals that establish tissue-resident Treg programs remain largely unknown. Tregs metabolically rely on FAO, and considering the lipid-rich environments of tissues, we hypothesized that environmental lipids drive Treg homeostasis. First, using human adipose tissue to model tissue residency, we identified oleic acid as the most prevalent free fatty acid. Mechanistically, oleic acid amplified Treg FAO-driven OXPHOS metabolism, creating a positive feedback mechanism that increased the expression of FOXP3 and phosphorylation of STAT5, which enhanced Treg-suppressive function. Comparing the transcriptomic program induced by oleic acid with proinflammatory arachidonic acid, we found that Tregs sorted from peripheral blood and adipose tissue of healthy donors transcriptomically resembled the Tregs treated in vitro with oleic acid, whereas Tregs from patients with multiple sclerosis (MS) more closely resembled an arachidonic acid transcriptomic profile. Finally, we found that oleic acid concentrations were reduced in patients with MS and that exposure of MS Tregs to oleic acid restored defects in their suppressive function. These data demonstrate the importance of fatty acids in regulating tissue inflammatory signals.
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Affiliation(s)
- Saige L Pompura
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, Connecticut, USA
| | - Allon Wagner
- Department of Electrical Engineering and Computer Science, and the Center for Computational Biology, University of California Berkeley, Berkeley, California, USA
| | - Alexandra Kitz
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, Connecticut, USA
| | - Jacob LaPerche
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, Connecticut, USA
| | - Nir Yosef
- Department of Electrical Engineering and Computer Science, and the Center for Computational Biology, University of California Berkeley, Berkeley, California, USA.,Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology (MIT) and Harvard University, Boston, Massachusetts, USA.,Chan-Zuckerberg Biohub, San Francisco, California, USA
| | - Margarita Dominguez-Villar
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, Connecticut, USA.,Faculty of Medicine, Imperial College London, London, United Kingdom
| | - David A Hafler
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, Connecticut, USA.,Broad Institute of MIT and Harvard University, Cambridge, Massachusetts, USA
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Contribution of Regulatory T Cell Methylation Modifications to the Pathogenesis of Allergic Airway Diseases. J Immunol Res 2021; 2021:5590217. [PMID: 34239942 PMCID: PMC8238596 DOI: 10.1155/2021/5590217] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 06/10/2021] [Indexed: 01/13/2023] Open
Abstract
Regulatory T (Treg) cells are a subtype of CD4+ T cells that play a significant role in the protection from autoimmunity and the maintenance of immune tolerance via immune regulation. Epigenetic modifications of Treg cells (i.e., cytosine methylation at the promoter region of the transcription factor, Forkhead Box P3) have been found to be closely associated with allergic diseases, including allergic rhinitis, asthma, and food allergies. In this study, we highlighted the recent evidence on the contribution of epigenetic modifications in Treg cells to the pathogenesis of allergic diseases. Moreover, we also discussed directions for future clinical treatment approaches, with a particular emphasis on Treg cell-targeted therapies for allergic disorders.
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Zhu J, Inomata T, Fujimoto K, Uchida K, Fujio K, Nagino K, Miura M, Negishi N, Okumura Y, Akasaki Y, Hirosawa K, Kuwahara M, Eguchi A, Shokirova H, Yanagawa A, Midorikawa-Inomata A, Murakami A. Ex Vivo-Induced Bone Marrow-Derived Myeloid Suppressor Cells Prevent Corneal Allograft Rejection in Mice. Invest Ophthalmol Vis Sci 2021; 62:3. [PMID: 34061951 PMCID: PMC8185403 DOI: 10.1167/iovs.62.7.3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 05/02/2021] [Indexed: 12/12/2022] Open
Abstract
Purpose To investigate the effects of ex vivo-induced bone marrow myeloid-derived suppressor cells (BM-MDSCs) on allogeneic immune responses in corneal transplantation. Methods Bone marrow cells from C57BL/6J (B6) mice were cultured with IL-6 and GM-CSF for four days. The ex vivo induction of the BM-MDSCs was assessed using flow cytometry, inducible nitric oxide synthase (iNOS) mRNA expression using reverse transcription-quantitative polymerase chain reaction, and nitric oxide (NO) production in allogeneic stimulation. T-cell proliferation and regulatory T-cell (Treg) expansion were investigated on allogeneic stimulation in the presence of ex vivo-induced BM-MDSCs. IFN-γ, IL-2, IL-10, and TGF-β1 protein levels were measured using enzyme-linked immunosorbent assays. After subconjunctival injection of ex vivo-induced BM-MDSCs, the migration of the BM-MDSCs into corneal grafts, allogeneic corneal graft survival, neovascularization, and lymphangiogenesis were assessed using flow cytometry, slit-lamp microscopy, and immunohistochemistry. Results The combination of GM-CSF and IL-6 significantly induced BM-MDSCs with increased iNos mRNA expression. The ex vivo-induced BM-MDSCs promoted NO release in allogeneic stimulation in vitro. The ex vivo-induced BM-MDSCs inhibited T-cell proliferation and promoted Treg expansion. Decreased IFN-γ and increased IL-2, IL-10, and TGF-β1 production was observed in coculture of ex vivo-induced BM-MDSCs. Injected ex vivo-induced BM-MDSCs were confirmed to migrate into the grafts. The injected BM-MDSCs also prolonged corneal graft survival and prevented angiogenesis and lymphangiogenesis. Conclusions The ex vivo-induced BM-MDSCs have suppressive effects on allogeneic immune responses and prolong corneal allograft survival via the iNOS pathway, indicating that they may be a potential therapeutic tool for corneal transplantation.
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Affiliation(s)
- Jun Zhu
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Ophthalmology, Subei People's Hospital Affiliated to Yangzhou University, Jiangsu Province, China
- Department of Ophthalmology, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Takenori Inomata
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Ophthalmology, Juntendo University Faculty of Medicine, Tokyo, Japan
- Department of Strategic Operating Room Management and Improvement, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Keiichi Fujimoto
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Koichiro Uchida
- Atopy Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kenta Fujio
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ken Nagino
- Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Maria Miura
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Naoko Negishi
- Atopy Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Indoor Environment Neurophysiology Research, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yuichi Okumura
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Strategic Operating Room Management and Improvement, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yasutsugu Akasaki
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kunihiko Hirosawa
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Mizu Kuwahara
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Atsuko Eguchi
- Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hurramhon Shokirova
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ai Yanagawa
- Department of Digital Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akie Midorikawa-Inomata
- Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akira Murakami
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Ophthalmology, Juntendo University Faculty of Medicine, Tokyo, Japan
- Department of Hospital Administration, Juntendo University Graduate School of Medicine, Tokyo, Japan
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27
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Iwaszkiewicz-Grzes D, Piotrowska M, Gliwinski M, Urban-Wójciuk Z, Trzonkowski P. Antigenic Challenge Influences Epigenetic Changes in Antigen-Specific T Regulatory Cells. Front Immunol 2021; 12:642678. [PMID: 33868279 PMCID: PMC8044853 DOI: 10.3389/fimmu.2021.642678] [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: 12/16/2020] [Accepted: 03/03/2021] [Indexed: 12/20/2022] Open
Abstract
Background Human regulatory T cells (Tregs) are the fundamental component of the immune system imposing immune tolerance via control of effector T cells (Teffs). Ongoing attempts to improve Tregs function have led to the creation of a protocol that produces antigen-specific Tregs, when polyclonal Tregs are stimulated with monocytes loaded with antigens specific for type 1 diabetes. Nevertheless, the efficiency of the suppression exerted by the produced Tregs depended on the antigen with the best results when insulin β chain peptide 9-23 was used. Here, we examined epigenetic modifications, which could influence these functional differences. Methods The analysis was pefromed in the sorted specific (SPEC, proliferating) and unspecific (UNSPEC, non-proliferating) subsets of Tregs and Teffs generated by the stimulation with monocytes loaded with either whole insulin (INS) or insulin β chain peptide 9-23 (B:9-23) or polyclonal cells stimulated with anti-CD3/anti-CD28 beads (POLY). A relative expression of crucial Tregs genes was determined by qRT-PCR. The Treg-specific demethylated region (TSDR) in FoxP3 gene methylation levels were assessed by Quantitative Methylation Specific PCR (qMSP). ELISA was used to measure genomic DNA methylation and histone H3 post-translational modifications (PTMs). Results Tregs SPECB:9-23 was the only subset expressing all assessed genes necessary for regulatory function with the highest level of expression among all analyzed conditions. The methylation of global DNA as well as TSDR were significantly lower in Tregs SPECB:9-23 than in Tregs SPECINS. When compared to Teffs, Tregs were characterized by a relatively lower level of PTMs but it varied in respective Tregs/Teffs pairs. Importantly, whenever the difference in PTM within Tregs/Teffs pair was significant, it was always low in one subset from the pair and high in the other. It was always low in Tregs SPECINS and high in Teffs SPECINS, while it was high in Tregs UNSPECINS and low in Teffs UNSPECINS. There were no differences in Tregs/Teffs SPECB:9-23 pair and the level of modifications was low in Tregs UNSPECB:9-23 and high in Teffs UNSPECB:9-23. The regions of PTMs in which differences were significant overlapped only partially between particular Tregs/Teffs pairs. Conclusions Whole insulin and insulin β chain peptide 9-23 affected epigenetic changes in CD4+ T cells differently, when presented by monocytes. The peptide preferably favored specific Tregs, while whole insulin activated both Tregs and Teffs.
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Affiliation(s)
| | | | - Mateusz Gliwinski
- Department of Medical Immunology, Medical University of Gdansk, Gdańsk, Poland
| | - Zuzanna Urban-Wójciuk
- International Centre for Cancer Vaccine Science, University of Gdańsk, Gdańsk, Poland
| | - Piotr Trzonkowski
- Department of Medical Immunology, Medical University of Gdansk, Gdańsk, Poland
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Lower Functional and Proportional Characteristics of Cord Blood Treg of Male Newborns Compared with Female Newborns. Biomedicines 2021; 9:biomedicines9020170. [PMID: 33572097 PMCID: PMC7915235 DOI: 10.3390/biomedicines9020170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/01/2021] [Accepted: 02/04/2021] [Indexed: 11/16/2022] Open
Abstract
Understanding the early events involved in the induction of immune tolerance to harmless environmental antigens and microbiota compounds could reveal potential targets for allergic disease therapy or prevention. Regulatory T cells (Treg), particularly induced Treg (iTreg), are crucial for the induction and maintenance of tolerance against environmental antigens including allergens. A decrease in the number and/or function of Treg or iTreg could represent an early predictor of allergy development. We analyzed proportional and functional properties of Treg in the cord blood of children of allergic mothers (neonates at high risk of allergy development) and healthy mothers (neonates with relatively low risk of allergy development). We observed a higher number of induced Treg in the cord blood of females compared to males, suggesting an impaired capacity of male immunity to set up tolerance to allergens, which could contribute to the higher incidence of allergy observed in male infants. The decreased proportion of iTreg in cord blood compared with maternal peripheral blood documents the general immaturity of the neonatal immune system. We observed a positive correlation in the demethylation of the Treg-specific demethylated region (TSDR) and the proportion of Treg in cord blood. Our data suggest that immaturity of the neonatal immune system is more severe in males, predisposing them to increased risk of allergy development.
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Value of cord blood Treg population properties and function-associated characteristics for predicting allergy development in childhood. Cent Eur J Immunol 2021; 45:393-402. [PMID: 33613093 PMCID: PMC7882409 DOI: 10.5114/ceji.2020.103413] [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: 07/22/2019] [Accepted: 11/20/2019] [Indexed: 11/17/2022] Open
Abstract
Allergic diseases represent some of the most common immunological disorders with high clinical and economic impact. Despite intensive research, there are still few universally accepted and reliable biomarkers capable of predicting their development at an early age. There is therefore a pressing need for identification of potential predictive factors and validation of their prognostic value by correlating them with allergy development. Dysbalance of the branches of immune response, most often excessive Th2 polarization, is the principal cause of allergic diseases. Regulatory T cells (Treg) are a crucial population for the timely establishment of physiological immune polarization and induction and maintenance of tolerance against environmental antigens. This makes them a potentially promising candidate for an early marker predicting allergy development. In our study, we analysed samples of cord blood of children of allergic mothers and children of healthy mothers by flow cytometry and retrospectively correlated the data with clinical allergy status of the children at the age of 6 to 10 years. Studied parameters included cord blood Treg population proportions and functional properties - intracellular presence of IL-10 and TGF-b, MFI of FoxP3. We observed higher percentage of Tregs in cord blood of children who did not develop allergy compared with allergic children. Further, we found higher numbers of IL-10+ Tregs in cord blood of healthy children of healthy mothers than in cord blood of children of allergic mothers and decreased TGF-b+ cord blood Tregs in the group of allergic children of allergic mothers compared to all other groups.
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Decipher manifestations and Treg /Th17 imbalance in multi-staging rheumatoid arthritis and correlation with TSDR/RORC methylation. Mol Immunol 2020; 127:1-11. [PMID: 32866740 DOI: 10.1016/j.molimm.2020.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 01/16/2020] [Accepted: 08/05/2020] [Indexed: 12/17/2022]
Abstract
T regulatory (Treg)/T-helper (Th) 17 imbalance has been shown to integrate with epigenetics to result in the development of autoimmune diseases. We aim to investigate the influence of disease staging on Treg/Th17 cells and whether the aberrant DNA methylation is implicated in the development of rheumatoid arthritis (RA). By recruiting 65 patients with multi-staging RA and 20 healthy controls (HC), we found that patients with active RA exhibited relative lymphopenia and higher WBC, neutrophils, and PLT. Circulating Treg/Th17 in patients with early active RA was significantly decreased. The expression of IL-6 and IL-17A was significantly increased in early active RA, whereas that of IL-10 and TGF-β was on the contrary. Furthermore, the frequency of Treg cells and Treg/Th17 were negatively correlated with DAS28, and the frequency of Th17 cells was on the contrary. Levels of DNA methylation related enzymes had significant difference between early active RA and HC. Relative hypermethylation was observed at the gene level for Treg-specific demethylated region (TSDR) and hypomethylation for retinoic acid-related orphan receptor (ROR)-C in early active RA. Thus, manifestations of RA and Treg/Th17 imbalance vary with disease staging, and the aberrant DNA methylation pattern may contribute to RA disease pathogenesis. Our results highlight the importance of disease staging in clinical research.
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Han Y, Lai J, Tao J, Tai Y, Zhou W, Guo P, Wang Z, Wang M, Wang Q. Sustaining Circulating Regulatory T Cell Subset Contributes to the Therapeutic Effect of Paroxetine on Mice With Diabetic Cardiomyopathy. Circ J 2020; 84:1587-1598. [PMID: 32741881 DOI: 10.1253/circj.cj-19-1182] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND G protein coupled receptor kinase 2 (GRK2) inhibitor, paroxetine, has been approved to ameliorate diabetic cardiomyopathy (DCM). GRK2 is also involved in regulating T cell functions; the potential modifications of paroxetine on the immune response to DCM is unclear.Methods and Results:DCM mouse was induced by high-fat diet (HFD) feeding. A remarkable reduction in the regulatory T (Treg) cell subset in DCM mouse was found by flow cytometry, with impaired cardiac function evaluated by echocardiography. The inhibited Treg differentiation was attributable to insulin chronic stimulation in a GRK2-PI3K-Akt signaling-dependent manner. The selective GRK2 inhibitor, paroxetine, rescued Treg differentiation in vitro and in vivo. Furthermore, heart function, as well as the activation of excitation-contraction coupling proteins such as phospholamban (PLB) and troponin I (TnI) was effectively promoted in paroxetine-treated DCM mice compared with vehicle-treated DCM mice. Blockade of FoxP3 expression sufficiently inhibited the proportion of Treg cells, abolished the protective effect of paroxetine on heart function as well as PLB and TnI activation in HFD-fed mice. Neither paroxetine nor carvedilol could effectively ameliorate the metabolic disorder of HFD mice. CONCLUSIONS The impaired systolic heart function of DCM mice was effectively improved by paroxetine therapy, partially through restoring the population of circulating Treg cells by targeting the GRK2-PI3K-Akt pathway.
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Affiliation(s)
- Yongsheng Han
- Department of Emergency Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China.,Department of Emergency Medicine, Anhui Provincial Hospital Affiliated to Anhui Medical University
| | - Jiacheng Lai
- Department of Emergency Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China.,Department of Emergency Medicine, Anhui Provincial Hospital Affiliated to Anhui Medical University
| | - Juan Tao
- Institute of Clinical Pharmacology, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Anhui Medical University
| | - Yu Tai
- Institute of Clinical Pharmacology, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Anhui Medical University
| | - Weijie Zhou
- Institute of Clinical Pharmacology, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Anhui Medical University
| | - Paipai Guo
- Institute of Clinical Pharmacology, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Anhui Medical University
| | - Zhen Wang
- Institute of Clinical Pharmacology, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Anhui Medical University
| | - Manman Wang
- Institute of Clinical Pharmacology, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Anhui Medical University
| | - Qingtong Wang
- Institute of Clinical Pharmacology, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Anhui Medical University
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Kechida M. Update on Autoimmune Diseases Pathogenesis. Curr Pharm Des 2020; 25:2947-2952. [PMID: 31686634 DOI: 10.2174/1381612825666190709205421] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 06/30/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Autoimmune diseases result from the interplay of cellular effectors like T and B cells, regulatory cells in addition to molecular factors like cytokines and regulatory molecules. METHODS Different electronic databases were searched in a non-systematic way to find out the literature of interest. RESULTS Pathogenesis of autoimmune diseases involves typical factors such as genetic background including HLA and non HLA system genes, environmental factors such as infectious agents and inflammatory cells mainly T and B lymphocytes abnormally activated leading to immune dysfunction. Other recently reported less typical factors such as micro-RNAs, circular RNAs, myeloperoxidase, vimentine and microbiome dysbiosis seem to be potential target therapies. CONCLUSION We aimed in this manuscript to review common factors in the pathogenesis of autoimmune diseases.
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Affiliation(s)
- Melek Kechida
- Internal Medicine and Endocrinology Department of Fattouma Bourguiba University Hospital, University of Monastir, BP 56 Avenue Taher Haddad, Monastir 5000, Tunisia
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Recent Advances in Psoriasis Research; the Clue to Mysterious Relation to Gut Microbiome. Int J Mol Sci 2020; 21:ijms21072582. [PMID: 32276410 PMCID: PMC7177330 DOI: 10.3390/ijms21072582] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/01/2020] [Accepted: 04/01/2020] [Indexed: 12/13/2022] Open
Abstract
Psoriasis is a chronic inflammatory cutaneous disease, characterized by activated plasmacytoid dendritic cells, myeloid dendritic cells, Th17 cells, and hyperproliferating keratinocytes. Recent studies revealed skin-resident cells have pivotal roles in developing psoriatic skin lesions. The balance in effector T cells and regulatory T cells is disturbed, leading Foxp3-positive regulatory T cells to produce proinflammatory IL-17. Not only acquired but also innate immunity is important in psoriasis pathogenesis, especially in triggering the disease. Group 3 innate lymphoid cell are considered one of IL-17-producing cells in psoriasis. Short chain fatty acids produced by gut microbiota stabilize expression of Foxp3 in regulatory T cells, thereby stabilizing their function. The composition of gut microbiota influences the systemic inflammatory status, and associations been shown with diabetes mellitus, cardiovascular diseases, psychomotor diseases, and other systemic inflammatory disorders. Psoriasis has been shown to frequently comorbid with diabetes mellitus, cardiovascular diseases, psychomotor disease and obesity, and recent report suggested the similar abnormality in gut microbiota as the above comorbid diseases. However, the precise mechanism and relation between psoriasis pathogenesis and gut microbiota needs further investigation. This review introduces the recent advances in psoriasis research and tries to provide clues to solve the mysterious relation of psoriasis and gut microbiota.
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Lv Q, Yang A, Shi W, Chen F, Liu Y, Liu Y, Wang D. Calcipotriol and iBRD9 reduce obesity in Nur77 knockout mice by regulating the gut microbiota, improving intestinal mucosal barrier function. Int J Obes (Lond) 2020; 44:1052-1061. [PMID: 32203112 PMCID: PMC7188666 DOI: 10.1038/s41366-020-0564-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 02/26/2020] [Accepted: 03/04/2020] [Indexed: 12/26/2022]
Abstract
Objective The orphan nuclear receptor Nur77 is an important factor regulating metabolism. Nur77 knockout mice become obese with age, but the cause of obesity in these mice has not been fully ascertained. We attempted to explain the cause of obesity in Nur77 knockout mice from the perspective of the gut microbiota and to investigate the inhibitory effect of calcipotriol combined with BRD9 inhibitor (iBRD9) on obesity. Methods Eight-week-old wild-type mice and Nur77 knockout C57BL/6J mice were treated with calcipotriol combined with iBRD9 for 12 weeks. Mouse feces were collected and the gut microbiota was assessed by analyzing 16S rRNA gene sequences. The bacterial abundance difference was analyzed, and the intestinal mucosal tight junction protein, antimicrobial peptide, and inflammatory cytokine mRNA levels of the colon and serum LPS and inflammatory cytokine levels were measured. Results Calcipotriol combined with iBRD9 treatment reduced the body weight and body fat percentage in Nur77 knockout mice. In the gut microbiota of Nur77 knockout mice, the relative abundances of Lachnospiraceae and Prevotellaceae decreased, and Rikenellaceae increased; while Rikenellaceae decreased after treatment (p < 0.05). Correspondingly, the mRNA levels of intestinal mucosal tight junction proteins (occludin (Ocln), claudin3 (Cldn3)) in the colons of Nur77 knockout mice were significantly decreased, and they increased significantly after treatment (p < 0.001). The mRNA levels of inflammatory cytokines (tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and interleukin-1β (IL-1β)) were significantly increased in Nur77 knockout mice, and TNF-α and IL-6 levels were significantly decreased after treatment (p < 0.05, <0.01, or <0.001). The levels of serum LPS, TNF-α, and IL-1β in Nur77 knockout mice were significantly increased (p < 0.05). Serum LPS, TNF-α, and IL-6 levels were significantly decreased after treatment (p < 0.05 or <0.01). Conclusions Calcipotriol combined with iBRD9 can regulate the gut microbiota, improve intestinal mucosal barrier function, reduce LPS absorption into the blood, and alleviate obesity in Nur77 knockout mice.
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Affiliation(s)
- Qingqing Lv
- Nutrition Department, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Aolin Yang
- Nutrition Department, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Wanying Shi
- Nutrition Department, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Feng Chen
- Department of Geriatric Endocrinology, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yixuan Liu
- Department of Geriatric Endocrinology, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ying Liu
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang, Liaoning, China
| | - Difei Wang
- Department of Geriatric Endocrinology, The First Hospital of China Medical University, Shenyang, Liaoning, China.
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Tang CL, Xie YP, Yu WH, Jin L, Xie ZL, Li XR. Effects of regulatory T cells on glyceraldehyde-3-phosphate dehydrogenase vaccine efficacy against Schistosoma japonicum. Acta Trop 2020; 202:105239. [PMID: 31669534 DOI: 10.1016/j.actatropica.2019.105239] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 08/06/2019] [Accepted: 10/23/2019] [Indexed: 12/13/2022]
Abstract
Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a candidate subunit vaccine that induces protective immunity and elicits partial resistance to Schistosoma japonicum upon mouse and livestock vaccination. This study aimed to evaluate the effect of regulatory T cells (Tregs), which were defined as CD4+CD25+Foxp3+ cells, on the efficacy of a GAPDH vaccine against S. japonicum. BALB/c female mice were randomly divided into five groups as follows: normal, infected control, anti-CD25 monoclonal antibody (anti-CD25 mAb), GAPDH group, and co-treated with anti-CD25 mAb and GAPDH group. The worm reduction and liver egg reduction rates in the GAPDH group were 32.46% and 35.43%, respectively, which increased to 60.09% and 58.78%, respectively, after anti-CD25 mAb administration. Compared with those in the infected control group, the percentage of Tregs in the spleen decreased significantly when GAPDH and anti-CD25 mAb were used either alone or in combination. Furthermore, secretions associated with the Th1 response increased in splenocytes of the anti-CD25 mAb group, whereas the Th1 and Th2 responses increased in splenocytes of the GAPDH and co-treated groups. Compared to that in the infected control group, granuloma diameter in the GAPDH and co-treated groups increased slightly, but there were no significant differences among the groups. Our results indicate that the protective effect of the GAPDH vaccines can be improved by decreasing Tregs and enhancing the Th1- and Th2-type immune responses. Therefore, anti-CD25 mAb and GAPDH might exert synergistic effects to clear parasites by decreasing the frequency of Tregs and increasing the Th1- and Th2-type immune responses.
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Affiliation(s)
- Chun-Lian Tang
- Wuchang Hospital affiliated to Wuhan University of Science and Technology, Wuhan 430063, China
| | - Ya-Ping Xie
- Wuchang Hospital affiliated to Wuhan University of Science and Technology, Wuhan 430063, China
| | - Wen-Hui Yu
- Wuchang Hospital affiliated to Wuhan University of Science and Technology, Wuhan 430063, China
| | - Lei Jin
- Wuchang Hospital affiliated to Wuhan University of Science and Technology, Wuhan 430063, China
| | - Zhao-Lan Xie
- Wuchang Hospital affiliated to Wuhan University of Science and Technology, Wuhan 430063, China.
| | - Xiu-Rong Li
- Wuchang Hospital affiliated to Wuhan University of Science and Technology, Wuhan 430063, China.
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Wei T, Zhong W, Li Q. Role of heterogeneous regulatory T cells in the tumor microenvironment. Pharmacol Res 2020; 153:104659. [PMID: 31982490 DOI: 10.1016/j.phrs.2020.104659] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 01/09/2020] [Accepted: 01/22/2020] [Indexed: 12/12/2022]
Abstract
Regulatory T cells (Tregs) modulate ongoing immune responses to prevent autoimmunity in healthy bodies and inhibit effective anti-tumor immunity responses in tumor patients, leading to tumor progression. The function of Tregs in tumor immunity suggests that elimination of Tregs in the host may enhance the anti-tumor immune response. Despite the success of strategies for depleting Tregs in tumor-bearing patients, the overall clinical efficacy is limited and accompanied by undesirable side effects. The present review describes the diverse anti-tumor roles and differentiation mechanisms of heterogeneous Tregs and proposes methods for modulating them in the tumor microenvironment. This information is critical for improving clinical outcomes and preventing adverse effects in cancer patients receiving immunotherapy targeting Tregs.
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Affiliation(s)
- Ting Wei
- Department of Hematology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China.
| | - Weijie Zhong
- Department of Geriatrics, Hematology & Oncology Ward, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, 510180 Guangdong, China.
| | - Qingshan Li
- Department of Hematology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China.
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Mancusi A, Piccinelli S, Velardi A, Pierini A. CD4 +FOXP3 + Regulatory T Cell Therapies in HLA Haploidentical Hematopoietic Transplantation. Front Immunol 2019; 10:2901. [PMID: 31921162 PMCID: PMC6927932 DOI: 10.3389/fimmu.2019.02901] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 11/26/2019] [Indexed: 12/11/2022] Open
Abstract
Since their discovery CD4+FOXP3+ regulatory T cells (Tregs) represented a promising tool to induce tolerance in allogeneic hematopoietic cell transplantation. Preclinical models proved that adoptive transfer of Tregs or the use of compounds that can favor their function in vivo are effective for prevention and treatment of graft-vs.-host disease (GvHD). Following these findings, Treg-based therapies have been employed in clinical trials. Adoptive immunotherapy with Tregs effectively prevents GvHD induced by alloreactive T cells in the setting of one HLA haplotype mismatched hematopoietic transplantation. The absence of post transplant pharmacologic immunosuppression unleashes T-cell mediated graft-vs.-tumor (GvT) effect, which results in an unprecedented, almost complete control of leukemia relapse in this setting. In the present review, we will report preclinical studies and clinical trials that demonstrate Treg ability to promote donor engraftment, protect from GvHD and improve GvT effect. We will also discuss new strategies to further enhance in vivo efficacy of Treg-based therapies.
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Affiliation(s)
- Antonella Mancusi
- Hematology and Clinical Immunology and Bone Marrow Transplant Program, Department of Medicine, University of Perugia, Perugia, Italy
| | - Sara Piccinelli
- Hematology and Clinical Immunology and Bone Marrow Transplant Program, Department of Medicine, University of Perugia, Perugia, Italy
| | - Andrea Velardi
- Hematology and Clinical Immunology and Bone Marrow Transplant Program, Department of Medicine, University of Perugia, Perugia, Italy
| | - Antonio Pierini
- Hematology and Clinical Immunology and Bone Marrow Transplant Program, Department of Medicine, University of Perugia, Perugia, Italy
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Doyon-Laliberté K, Chagnon-Choquet J, Byrns M, Aranguren M, Memmi M, Chrobak P, Stagg J, Poudrier J, Roger M. NR4A Expression by Human Marginal Zone B-Cells. Antibodies (Basel) 2019; 8:antib8040050. [PMID: 31614541 PMCID: PMC6963983 DOI: 10.3390/antib8040050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 09/11/2019] [Accepted: 10/03/2019] [Indexed: 01/30/2023] Open
Abstract
We have previously characterized a human blood CD19+CD1c+IgM+CD27+CD21loCD10+ innate-like B-cell population, which presents features shared by both transitional immature and marginal zone (MZ) B-cells, named herein “precursor-like” MZ B-cells. B-cells with similar attributes have been associated with regulatory potential (Breg). In order to clarify this issue and better characterize this population, we have proceeded to RNA-Seq transcriptome profiling of mature MZ and precursor-like MZ B-cells taken from the blood of healthy donors. We report that ex vivo mature MZ and precursor-like MZ B-cells express transcripts for the immunoregulatory marker CD83 and nuclear receptors NR4A1, 2, and 3, known to be associated with T-cell regulatory (Treg) maintenance and function. Breg associated markers such as CD39 and CD73 were also expressed by both populations. We also show that human blood and tonsillar precursor-like MZ B-cells were the main B-cell population to express elevated levels of CD83 and NR4A1-3 proteins ex vivo and without stimulation. Sorted tonsillar precursor-like MZ B-cells exerted regulatory activity on autologous activated CD4+ T-cells, and this was affected by a CD83 blocking reagent. We believe these observations shed light on the Breg potential of MZ populations, and identify NR4A1-3 as potential Breg markers, which as for Tregs, may be involved in stabilization of a regulatory status. Since expression and activity of these molecules can be modulated therapeutically, our findings may be useful in strategies aiming at modulation of Breg responses.
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Affiliation(s)
- Kim Doyon-Laliberté
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Tour Viger 900 rue St-Denis, Montréal, QC H2X 0A9, Canada.
- Département de Microbiologie, Infectiologie et Immunologie de l'Université de Montréal, Montréal, QC H3C 3J7, Canada.
| | - Josiane Chagnon-Choquet
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Tour Viger 900 rue St-Denis, Montréal, QC H2X 0A9, Canada.
- Département de Microbiologie, Infectiologie et Immunologie de l'Université de Montréal, Montréal, QC H3C 3J7, Canada.
| | - Michelle Byrns
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Tour Viger 900 rue St-Denis, Montréal, QC H2X 0A9, Canada.
- Département de Microbiologie, Infectiologie et Immunologie de l'Université de Montréal, Montréal, QC H3C 3J7, Canada.
| | - Matheus Aranguren
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Tour Viger 900 rue St-Denis, Montréal, QC H2X 0A9, Canada.
- Département de Microbiologie, Infectiologie et Immunologie de l'Université de Montréal, Montréal, QC H3C 3J7, Canada.
| | - Meriam Memmi
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Tour Viger 900 rue St-Denis, Montréal, QC H2X 0A9, Canada.
- Département de Microbiologie, Infectiologie et Immunologie de l'Université de Montréal, Montréal, QC H3C 3J7, Canada.
| | - Pavel Chrobak
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Tour Viger 900 rue St-Denis, Montréal, QC H2X 0A9, Canada.
- Faculte de Pharmacie, Université de Montréal, Montréal, QC H3C 3J7, Canada.
- Institut du Cancer de Montréal CRCHUM, Montreal, QC H2X 0A9, Canada.
| | - John Stagg
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Tour Viger 900 rue St-Denis, Montréal, QC H2X 0A9, Canada.
- Faculte de Pharmacie, Université de Montréal, Montréal, QC H3C 3J7, Canada.
- Institut du Cancer de Montréal CRCHUM, Montreal, QC H2X 0A9, Canada.
| | - Johanne Poudrier
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Tour Viger 900 rue St-Denis, Montréal, QC H2X 0A9, Canada.
- Département de Microbiologie, Infectiologie et Immunologie de l'Université de Montréal, Montréal, QC H3C 3J7, Canada.
| | - Michel Roger
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Tour Viger 900 rue St-Denis, Montréal, QC H2X 0A9, Canada.
- Département de Microbiologie, Infectiologie et Immunologie de l'Université de Montréal, Montréal, QC H3C 3J7, Canada.
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Ubaid Ullah, Andrabi SBA, Tripathi SK, Dirasantha O, Kanduri K, Rautio S, Gross CC, Lehtimäki S, Bala K, Tuomisto J, Bhatia U, Chakroborty D, Elo LL, Lähdesmäki H, Wiendl H, Rasool O, Lahesmaa R. Transcriptional Repressor HIC1 Contributes to Suppressive Function of Human Induced Regulatory T Cells. Cell Rep 2019; 22:2094-2106. [PMID: 29466736 PMCID: PMC5842026 DOI: 10.1016/j.celrep.2018.01.070] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 11/29/2017] [Accepted: 01/23/2018] [Indexed: 01/13/2023] Open
Abstract
Regulatory T (Treg) cells are critical in regulating the immune response. In vitro induced Treg (iTreg) cells have significant potential in clinical medicine. However, applying iTreg cells as therapeutics is complicated by the poor stability of human iTreg cells and their variable suppressive activity. Therefore, it is important to understand the molecular mechanisms of human iTreg cell specification. We identified hypermethylated in cancer 1 (HIC1) as a transcription factor upregulated early during the differentiation of human iTreg cells. Although FOXP3 expression was unaffected, HIC1 deficiency led to a considerable loss of suppression by iTreg cells with a concomitant increase in the expression of effector T cell associated genes. SNPs linked to several immune-mediated disorders were enriched around HIC1 binding sites, and in vitro binding assays indicated that these SNPs may alter the binding of HIC1. Our results suggest that HIC1 is an important contributor to iTreg cell development and function. Hypermethylated in cancer 1 (HIC1) is upregulated in iTreg cells HIC1-deficient iTreg cells express FOXP3 but have reduced suppressive ability Autoimmune-disease-associated SNPs are enriched within HIC1 binding loci HIC1 is an important regulator of iTreg development and function
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Affiliation(s)
- Ubaid Ullah
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | | | - Subhash Kumar Tripathi
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Obaiah Dirasantha
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Kartiek Kanduri
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland; Department of Computer Science, Aalto University School of Science, Aalto, Finland
| | - Sini Rautio
- Department of Computer Science, Aalto University School of Science, Aalto, Finland
| | - Catharina C Gross
- Department of Neurology, University of Muenster, Albert-Schweitzer-Campus 1, Building A1, 48149 Muenster, Germany
| | - Sari Lehtimäki
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Kanchan Bala
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Johanna Tuomisto
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Urvashi Bhatia
- Department of Neurology, University of Muenster, Albert-Schweitzer-Campus 1, Building A1, 48149 Muenster, Germany
| | - Deepankar Chakroborty
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Laura L Elo
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Harri Lähdesmäki
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland; Department of Computer Science, Aalto University School of Science, Aalto, Finland
| | - Heinz Wiendl
- Department of Neurology, University of Muenster, Albert-Schweitzer-Campus 1, Building A1, 48149 Muenster, Germany
| | - Omid Rasool
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Riitta Lahesmaa
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland.
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Epigenetic Reprogramming of TGF-β Signaling in Breast Cancer. Cancers (Basel) 2019; 11:cancers11050726. [PMID: 31137748 PMCID: PMC6563130 DOI: 10.3390/cancers11050726] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/20/2019] [Accepted: 05/22/2019] [Indexed: 12/16/2022] Open
Abstract
The Transforming Growth Factor-β (TGF-β) signaling pathway has a well-documented, context-dependent role in breast cancer development. In normal and premalignant cells, it acts as a tumor suppressor. By contrast, during the malignant phases of breast cancer progression, the TGF-β signaling pathway elicits tumor promoting effects particularly by driving the epithelial to mesenchymal transition (EMT), which enhances tumor cell migration, invasion and ultimately metastasis to distant organs. The molecular and cellular mechanisms that govern this dual capacity are being uncovered at multiple molecular levels. This review will focus on recent advances relating to how epigenetic changes such as acetylation and methylation control the outcome of TGF-β signaling and alter the fate of breast cancer cells. In addition, we will highlight how this knowledge can be further exploited to curb tumorigenesis by selective targeting of the TGF-β signaling pathway.
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Complementary Roles of GCN5 and PCAF in Foxp3+ T-Regulatory Cells. Cancers (Basel) 2019; 11:cancers11040554. [PMID: 31003455 PMCID: PMC6520961 DOI: 10.3390/cancers11040554] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/05/2019] [Accepted: 04/09/2019] [Indexed: 01/09/2023] Open
Abstract
Functions of the GCN5-related N-acetyltransferase (GNAT) family of histone/protein acetyltransferases (HATs) in Foxp3+ T-regulatory (Treg) cells are unexplored, despite the general importance of these enzymes in cell biology. We now show that two prototypical GNAT family members, GCN5 (general control nonrepressed-protein 5, lysine acetyltransferase (KAT)2a) and p300/CBP-associated factor (p300/CBP-associated factor (PCAF), Kat2b) contribute to Treg functions through partially distinct and partially overlapping mechanisms. Deletion of Gcn5 or PCAF did not affect Treg development or suppressive function in vitro, but did affect inducible Treg (iTreg) development, and in vivo, abrogated Treg-dependent allograft survival. Contrasting effects were seen upon targeting of each HAT in all T cells; mice lacking GCN5 showed prolonged allograft survival, suggesting this HAT might be a target for epigenetic therapy in allograft recipients, whereas transplants in mice lacking PCAF underwent acute allograft rejection. PCAF deletion also enhanced anti-tumor immunity in immunocompetent mice. Dual deletion of GCN5 and PCAF led to decreased Treg stability and numbers in peripheral lymphoid tissues, and mice succumbed to severe autoimmunity by 3–4 weeks of life. These data indicate that HATs of the GNAT family have contributions to Treg function that cannot be replaced by the functions of previously characterized Treg HATs (CBP, p300, and Tip60), and may be useful targets in immuno-oncology.
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Development and Functional Modulation of Regulatory T Cells by Transcription Factors and Epigenetics. Cornea 2018; 37 Suppl 1:S42-S49. [PMID: 30211750 DOI: 10.1097/ico.0000000000001720] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Regulatory T cells (Tregs) are essential for the maintenance of immune homeostasis. Studies of Treg are not only necessary for understanding the mechanism of immune homeostasis but also extremely useful for the development of treatments of various immune diseases. Forkhead box P3 (Foxp3) was identified as the master gene responsible for the immune-suppressing activity of Tregs. The promoter region and several intronic enhancers, designated conserved noncoding sequence (CNS) 0, 1, 2, and 3, at the Foxp3 gene locus have important roles in Foxp3 expression and Treg development. We demonstrated that transcription factors Nr4a and Smad2/3 are required for development of thymic Tregs and induced Tregs, respectively. In addition to transcription factors, Treg-specific DNA demethylation has been shown to be important for Treg stability. In particular, DNA demethylation of CNS2 was implicated in Treg stability, and members of the ten-eleven translocation family of demethylation factors were recently demonstrated to have important roles in 5'-C-phosphate-G-3' demethylation at CNS2. This article summarizes recent findings regarding the roles of transcription factors and epigenetic modifications in the differentiation, maintenance, and function of Tregs. This review will facilitate clinical application of Tregs to diseases in the field of ophthalmology, including uveitis and age-related macular degeneration.
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Ferrandino F, Grazioli P, Bellavia D, Campese AF, Screpanti I, Felli MP. Notch and NF-κB: Coach and Players of Regulatory T-Cell Response in Cancer. Front Immunol 2018; 9:2165. [PMID: 30364244 PMCID: PMC6193072 DOI: 10.3389/fimmu.2018.02165] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 09/03/2018] [Indexed: 12/20/2022] Open
Abstract
The Notch signaling pathway plays multiple roles in driving T-cell fate decisions, proliferation, and aberrant growth. NF-κB is a cell-context key player interconnected with Notch signaling either in physiological or in pathological conditions. This review focuses on how the multilayered crosstalk between different Notches and NF-κB subunits may converge on Foxp3 gene regulation and orchestrate CD4+ regulatory T (Treg) cell function, particularly in a tumor microenvironment. Notably, Treg cells may play a pivotal role in the inhibition of antitumor immune responses, possibly promoting tumor growth. A future challenge is represented by further dissection of both Notch and NF-κB pathways and consequences of their intersection in tumor-associated Treg biology. This may shed light on the molecular mechanisms regulating Treg cell expansion and migration to peripheral lymphoid organs thought to facilitate tumor development and still to be explored. In so doing, new opportunities for combined and/or more selective therapeutic approaches to improve anticancer immunity may be found.
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Affiliation(s)
| | - Paola Grazioli
- Department of Experimental Medicine, La Sapienza University, Rome, Italy
| | - Diana Bellavia
- Department of Molecular Medicine, La Sapienza University, Rome, Italy
| | | | | | - Maria Pia Felli
- Department of Experimental Medicine, La Sapienza University, Rome, Italy
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Pawlik A, Anisiewicz A, Filip-Psurska B, Nowak M, Turlej E, Trynda J, Banach J, Gretkierewicz P, Wietrzyk J. Calcitriol and Its Analogs Establish the Immunosuppressive Microenvironment That Drives Metastasis in 4T1 Mouse Mammary Gland Cancer. Int J Mol Sci 2018; 19:ijms19072116. [PMID: 30037009 PMCID: PMC6073894 DOI: 10.3390/ijms19072116] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/15/2018] [Accepted: 07/18/2018] [Indexed: 02/07/2023] Open
Abstract
In our previous study, calcitriol and its analogs PRI-2191 and PRI-2205 stimulated 4T1 mouse mammary gland cancer metastasis. Therefore, we aimed to analyze the inflammatory response in 4T1-bearing mice treated with these compounds. Gene expression analysis of the splenocytes and regional lymph nodes demonstrated prevalence of the T helper lymphocytes (Th2) response with an increased activity of regulatory T (Treg) lymphocytes in mice treated with these compounds. We also observed an increased number of mature granulocytes and B lymphocytes and a decreased number of TCD4+, TCD4+CD25+, and TCD8+, as well as natural killer (NK) CD335+, cells in the blood of mice treated with calcitriol and its analogs. Among the splenocytes, we observed a significant decrease in NK CD335+ cells and an increase in TCD8+ cells. Calcitriol and its analogs decreased the levels of interleukin (IL)-1β and IL-10 and increased the level of interferon gamma (IFN-γ) in the plasma. In the tumor tissue, they caused an increase in the level of IL-10. Gene expression analysis of lung tissue demonstrated an increased level of osteopontin (Spp1) and transforming growth factor β (TGF-β) mRNA. The expression of Spp1 was also elevated in lymph nodes. Calcitriol and its analogs caused prevalence of tumor-conducive changes in the immune system of 4T1 tumor-bearing mice, despite the induction of some tumor-disadvantageous effects.
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Affiliation(s)
- Agata Pawlik
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland.
| | - Artur Anisiewicz
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland.
| | - Beata Filip-Psurska
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland.
| | - Marcin Nowak
- Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 50-3754 Wroclaw, Poland.
| | - Eliza Turlej
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland.
| | - Justyna Trynda
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland.
| | - Joanna Banach
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland.
| | - Paweł Gretkierewicz
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland.
| | - Joanna Wietrzyk
- Department of Experimental Oncology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, 53-114 Wroclaw, Poland.
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Immune Privilege and Eye-Derived T-Regulatory Cells. J Immunol Res 2018; 2018:1679197. [PMID: 29888291 PMCID: PMC5985108 DOI: 10.1155/2018/1679197] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 04/18/2018] [Indexed: 02/08/2023] Open
Abstract
Certain cellular components of the eye, such as neural retina, are unable to regenerate and replicate after destructive inflammation. Ocular immune privilege provides the eye with immune protection against intraocular inflammation in order to minimize the risk to vision integrity. The eye and immune system use strategies to maintain the ocular immune privilege by regulating the innate and adaptive immune response, which includes immunological ignorance, peripheral tolerance to eye-derived antigens, and intraocular immunosuppressive microenvironment. In this review, we summarize current knowledge regarding the molecular mechanism responsible for the development and maintenance of ocular immune privilege via regulatory T cells (Tregs), which are generated by the anterior chamber-associated immune deviation (ACAID), and ocular resident cells including corneal endothelial (CE) cells, ocular pigment epithelial (PE) cells, and aqueous humor. Furthermore, we examined the therapeutic potential of Tregs generated by RPE cells that express transforming growth factor beta (TGF-β), cytotoxic T lymphocyte-associated antigen-2 alpha (CTLA-2α), and retinoic acid for autoimmune uveoretinitis and evaluated a new strategy using human RPE-induced Tregs for clinical application in inflammatory ocular disease. We believe that a better understanding of the ocular immune privilege associated with Tregs might offer a new approach with regard to therapeutic interventions for ocular autoimmunity.
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Mohr A, Malhotra R, Mayer G, Gorochov G, Miyara M. Human FOXP3 + T regulatory cell heterogeneity. Clin Transl Immunology 2018; 7:e1005. [PMID: 29484183 PMCID: PMC5822410 DOI: 10.1002/cti2.1005] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 12/11/2017] [Accepted: 12/15/2017] [Indexed: 12/20/2022] Open
Abstract
FOXP3-expressing CD4+ T regulatory (Treg) cells are instrumental for the maintenance of self-tolerance. They are also involved in the prevention of allergy, allograft rejection, foetal rejection during pregnancy and of exaggerated immune response towards commensal pathogens in mucosal tissues. They can also prevent immune responses against tumors and promote tumor progression. FOXP3-expressing Treg cells are not a homogenous population. The different subsets of Treg cells can have different functions or roles in the maintenance of immune homeostasis and can therefore be differentially targeted in the management of autoimmune diseases or in cancer. We discuss here how Treg cell subsets can be differentiated phenotypically, functionally and developmentally in humans.
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Affiliation(s)
- Audrey Mohr
- Sorbonne UniversitéInsermCentre d'immunologie et des maladies infectieuses‐Paris (Cimi‐Paris)AP‐HP Hôpital Pitié‐SalpêtrièreParisFrance
| | - Rajneesh Malhotra
- Immunity departmentRIA IMED Biotech UnitAstraZeneca GothenburgMölndalSweden
| | - Gaell Mayer
- Biometrics & Information SciencesRespiratory, Inflammation, Autoimmunity & NeurosciencesGlobal Medicine Development, AstraZenecaMölndalSweden
| | - Guy Gorochov
- Sorbonne UniversitéInsermCentre d'immunologie et des maladies infectieuses‐Paris (Cimi‐Paris)AP‐HP Hôpital Pitié‐SalpêtrièreParisFrance
- Département d'ImmunologieAP‐HP, Groupement Hospitalier Pitié‐SalpêtrièreParisFrance
| | - Makoto Miyara
- Sorbonne UniversitéInsermCentre d'immunologie et des maladies infectieuses‐Paris (Cimi‐Paris)AP‐HP Hôpital Pitié‐SalpêtrièreParisFrance
- Département d'ImmunologieAP‐HP, Groupement Hospitalier Pitié‐SalpêtrièreParisFrance
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The molecular basis of immune regulation in autoimmunity. Clin Sci (Lond) 2018; 132:43-67. [PMID: 29305419 DOI: 10.1042/cs20171154] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 11/21/2017] [Accepted: 11/27/2017] [Indexed: 12/11/2022]
Abstract
Autoimmune diseases can be triggered and modulated by various molecular and cellular characteristics. The mechanisms of autoimmunity and the pathogenesis of autoimmune diseases have been investigated for several decades. It is well accepted that autoimmunity is caused by dysregulated/dysfunctional immune susceptible genes and environmental factors. There are multiple physiological mechanisms that regulate and control self-reactivity, but which can also lead to tolerance breakdown when in defect. The majority of autoreactive T or B cells are eliminated during the development of central tolerance by negative selection. Regulatory cells such as Tregs (regulatory T) and MSCs (mesenchymal stem cells), and molecules such as CTLA-4 (cytotoxic T-lymphocyte associated antigen 4) and IL (interleukin) 10 (IL-10), help to eliminate autoreactive cells that escaped to the periphery in order to prevent development of autoimmunity. Knowledge of the molecular basis of immune regulation is needed to further our understanding of the underlying mechanisms of loss of tolerance in autoimmune diseases and pave the way for the development of more effective, specific, and safer therapeutic interventions.
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