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Han R, Zhu D, Sha J, Zhao B, Jin P, Meng C. Decoding the role of DNA methylation in allergic diseases: from pathogenesis to therapy. Cell Biosci 2024; 14:89. [PMID: 38965641 PMCID: PMC11225420 DOI: 10.1186/s13578-024-01270-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 06/24/2024] [Indexed: 07/06/2024] Open
Abstract
Allergic diseases, characterized by a broad spectrum of clinical manifestations and symptoms, encompass a significant category of IgE-mediated atopic disorders, including asthma, allergic rhinitis, atopic dermatitis, and food allergies. These complex conditions arise from the intricate interplay between genetic and environmental factors and are known to contribute to socioeconomic burdens globally. Recent advancements in the study of allergic diseases have illuminated the crucial role of DNA methylation (DNAm) in their pathogenesis. This review explores the factors influencing DNAm in allergic diseases and delves into their mechanisms, offering valuable perspectives for clinicians. Understanding these epigenetic modifications aims to lay the groundwork for improved early prevention strategies. Moreover, our analysis of DNAm mechanisms in these conditions seeks to enhance diagnostic and therapeutic approaches, paving the way for more effective management of allergic diseases in the future.
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Affiliation(s)
- Ruiming Han
- Department of Otolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Dongdong Zhu
- Department of Otolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Precise Diagnosis and Treatment of Upper Airway Allergic Diseases, Changchun, China
| | - Jichao Sha
- Department of Otolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Precise Diagnosis and Treatment of Upper Airway Allergic Diseases, Changchun, China
| | - Boning Zhao
- Department of Otolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Peng Jin
- Department of Human Genetics, Emory University School of Medicine, 615 Michael ST NE, Atlanta, GA, 30322, USA.
| | - Cuida Meng
- Department of Otolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Changchun, China.
- Jilin Provincial Key Laboratory of Precise Diagnosis and Treatment of Upper Airway Allergic Diseases, Changchun, China.
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Pan Y, Zhang X, Geng H, Yu Y, Liu J, Li M, Yang H, Yuan Y, Xu Y, Wu Y, Wu G, Ma X, Cheng L. Increased Nasal Blimp1 + Treg Cells After Sublingual Immunotherapy Reflect the Efficacy of Treatment in Allergic Rhinitis. Adv Ther 2024; 41:1698-1710. [PMID: 38443650 DOI: 10.1007/s12325-024-02819-8] [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: 01/13/2024] [Accepted: 02/07/2024] [Indexed: 03/07/2024]
Abstract
INTRODUCTION Allergen-specific immunotherapy (AIT) plays a pivotal role in altering the immune status and tissue responses in allergic rhinitis (AR). This study focuses on the impact of sublingual immunotherapy (SLIT) involving dust mite drops, exploring the modulation of regulatory T cells (Treg) and their specific marker, BLIMP1, in the nasal mucosa. METHODS Immune cells were isolated from nasal lavage fluid of patients with AR undergoing SLIT (n = 94). Treg cells were analyzed for BLIMP1 expression, and chemokine levels associated with Treg recruitment were assessed using Luminex assay. Patients were categorized on the basis of SLIT efficacy and followed for changes after discontinuation. RESULTS SLIT induced a significant increase in nasal Treg cells (7.09 ± 2.59% vs. 0.75 ± 0.27%, P < 0.0001). BLIMP1 expression in Treg cells notably increased after SLIT (0.36 ± 0.22% to 16.86 ± 5.74%, P < 0.0001). Ineffective SLIT cases exhibited lower levels of nasal Treg and Blimp1 + Treg cells (both P < 0.0001). Receiver operating characteristic (ROC) analysis confirmed their potential as efficacy predictors (AUC = 0.908 and 0.968, respectively). SLIT discontinuation led to a significant reduction in Treg and Blimp1 + Treg cells (P < 0.001), emphasizing their maintenance during treatment. Pro-inflammatory cytokines decreased (P < 0.001), while CCL2 associated with Treg recruitment increased (P = 0.0015). CONCLUSION Elevated nasal Blimp1 + Treg cells serve as a predictive biomarker for SLIT responsiveness in pediatric AR. Their influence on immunotherapy effectiveness contributes to a nuanced understanding of SLIT mechanisms, allowing for disease stratification and personalized treatment plans. This study offers scientific support for predicting SLIT efficacy, enhancing the prospects of improved treatment outcomes in AR.
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Affiliation(s)
- Yue Pan
- Department of Otolaryngology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215600, China
| | - Xinxin Zhang
- Department of Otolaryngology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215600, China
| | - Huanting Geng
- Department of Otolaryngology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215600, China
| | - Yan Yu
- Department of Otolaryngology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215600, China
| | - Jianyong Liu
- Department of Otolaryngology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215600, China
| | - Menglin Li
- Department of Otolaryngology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215600, China
| | - Huijun Yang
- Department of Otolaryngology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215600, China
| | - Yifang Yuan
- Department of Otolaryngology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215600, China
| | - Yao Xu
- Department of Otolaryngology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215600, China
| | - Yujia Wu
- Department of Otolaryngology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215600, China
| | - Geping Wu
- Department of Otolaryngology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215600, China.
- Office of Science Education, Zhangjiagang Hospital Affiliated to Soochow University, 68 West Jiyang Road, Suzhou, 215000, China.
| | - Xingkai Ma
- Department of Otolaryngology, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215600, China
- Information Center, Zhangjiagang Hospital Affiliated to Soochow University, Suzhou, 215000, China
| | - Lei Cheng
- Department of Otorhinolaryngology and Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing, 210029, China.
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Yeung-Luk BH, Wally A, Swaby C, Jauregui S, Lee E, Zhang R, Chen D, Luk SH, Upadya N, Tieng E, Wilmsen K, Sherman E, Sudhakar D, Luk M, Shrivastav AK, Cao S, Ghosh B, Christenson SA, Huang YJ, Ortega VE, Biswal S, Tang WY, Sidhaye VK. Epigenetic Reprogramming Drives Epithelial Disruption in Chronic Obstructive Pulmonary Disease. Am J Respir Cell Mol Biol 2024; 70:165-177. [PMID: 37976469 PMCID: PMC10914773 DOI: 10.1165/rcmb.2023-0147oc] [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: 04/25/2023] [Accepted: 11/17/2023] [Indexed: 11/19/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) remains a major public health challenge that contributes greatly to mortality and morbidity worldwide. Although it has long been recognized that the epithelium is altered in COPD, there has been little focus on targeting it to modify the disease course. Therefore, mechanisms that disrupt epithelial cell function in patients with COPD are poorly understood. In this study, we sought to determine whether epigenetic reprogramming of the cell-cell adhesion molecule E-cadherin, encoded by the CDH1 gene, disrupts epithelial integrity. By reducing these epigenetic marks, we can restore epithelial integrity and rescue alveolar airspace destruction. We used differentiated normal and COPD-derived primary human airway epithelial cells, genetically manipulated mouse tracheal epithelial cells, and mouse and human precision-cut lung slices to assess the effects of epigenetic reprogramming. We show that the loss of CDH1 in COPD is due to increased DNA methylation site at the CDH1 enhancer D through the downregulation of the ten-eleven translocase methylcytosine dioxygenase (TET) enzyme TET1. Increased DNA methylation at the enhancer D region decreases the enrichment of RNA polymerase II binding. Remarkably, treatment of human precision-cut slices derived from patients with COPD with the DNA demethylation agent 5-aza-2'-deoxycytidine decreased cell damage and reduced air space enlargement in the diseased tissue. Here, we present a novel mechanism that targets epigenetic modifications to reverse the tissue remodeling in human COPD lungs and serves as a proof of concept for developing a disease-modifying target.
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Affiliation(s)
| | - Ara Wally
- Department of Environmental Health and Engineering and
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Carter Swaby
- Department of Pulmonary and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Sofia Jauregui
- Department of Pulmonary and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Esther Lee
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Rachel Zhang
- Department of Pulmonary and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Daniel Chen
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Sean H. Luk
- Department of Environmental Health and Engineering and
| | - Nisha Upadya
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Ethan Tieng
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Kai Wilmsen
- Department of Environmental Health and Engineering and
| | - Ethan Sherman
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Dheeksha Sudhakar
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Matthew Luk
- Department of Environmental Health and Engineering and
| | - Abhishek Kumar Shrivastav
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, University of California, San Francisco, San Francisco, California
| | - Shuo Cao
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, University of California, San Francisco, San Francisco, California
| | | | - Stephanie A. Christenson
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, University of California, San Francisco, San Francisco, California
| | - Yvonne J. Huang
- Department of Medicine, University of Michigan, Ann Arbor, Michigan; and
| | | | - Shyam Biswal
- Department of Environmental Health and Engineering and
| | - Wan-yee Tang
- Department of Environmental Health and Engineering and
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Venkataramana K. Sidhaye
- Department of Environmental Health and Engineering and
- Department of Pulmonary and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland
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Liu K, Xu Y. Downregulation of TET2 Contributes to Nasal Polypogenesis Through Hypoxia-Inducible Factor 1α-Mediated Epithelial-to-Mesenchymal Transition. Clin Exp Otorhinolaryngol 2024; 17:64-77. [PMID: 38228132 PMCID: PMC10933810 DOI: 10.21053/ceo.2023.01340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 12/16/2023] [Accepted: 12/28/2023] [Indexed: 01/18/2024] Open
Abstract
OBJECTIVES Hypoxia-inducible factor 1α (HIF1α) and Tet methylcytosine dioxygenase 2 (TET2) have been reported to mediate nasal polypogenesis through the epithelial-to-mesenchymal transition (EMT). Additionally, HIF1α can regulate the expression and function of TET2. However, the precise mechanism of how TET2 regulates the EMT through HIF1α mediation in nasal epithelial cells is still poorly understood. METHODS Nasal tissue samples were collected from patients with chronic rhinosinusitis (CRS) with nasal polyps (CRSwNP), CRS without nasal polyps (CRSsNP), and controls. The expression of HIF1α and TET2 was detected using Western blotting and immunohistochemistry. EMT markers (E-cadherin and vimentin) were also evaluated by immunohistochemistry. Primary human nasal epithelial cells (hNECs) were stimulated with CoCl2 to mimic hypoxia. Vitamin C (VC), a TET2 non-specific activator, and small interfering RNA (siRNA) transfection of TET2 were used to further determine the role of TET2 in hypoxia-induced EMT. Finally, reactive oxygen species (ROS) and Nrf2 were measured to explore the downstream consequences of TET2 in hypoxic hNECs. RESULTS TET2 levels were lower in the nasal epithelium of CRSwNP patients and were positively correlated with E-cadherin but negatively correlated with vimentin in CRS. However, HIF1α exhibited the opposite pattern and was negatively correlated with TET2 expression. CoCl2-simulated hypoxia led to EMT and increased HIF1α in hNECs in vitro, with simultaneous downregulation of TET2 expression. Addition of VC activated TET2 expression in hNECs, but inhibited EMT and HIF1α expression. Furthermore, siRNA knockdown of TET2 contributed to the EMT in CoCl2-simulated hNECs despite the addition of VC. Finally, TET2 regulated the EMT in hypoxic hNECs through Nrf2 expression and ROS generation. CONCLUSION TET2 was negatively correlated with HIF1α and EMT in vivo. TET2 was downregulated by HIF1α, resulting in the EMT in CoCl2-hypoxic hNECs via regulation of oxidative stress in vitro. Hence, TET2 might provide a new therapeutic approach for CRSwNP.
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Affiliation(s)
- Kunyu Liu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
- Department of Rhinology and Allergy, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Province Key Laboratory of Allergy and Immunology, Wuhan, China
- Research Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yu Xu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
- Department of Rhinology and Allergy, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Province Key Laboratory of Allergy and Immunology, Wuhan, China
- Research Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
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Chen C, Zeng J, Lu J. Critical role of epigenetic modification in the pathogenesis of atopic dermatitis. Indian J Dermatol Venereol Leprol 2023; 89:700-709. [PMID: 37067130 DOI: 10.25259/ijdvl_298_2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 10/24/2022] [Indexed: 03/31/2023]
Abstract
Atopic dermatitis is a chronic inflammatory skin disease characterised by recurrent eczema-like lesions and severe pruritus, along with drying and decrustation of skin. Current research relates the pathogenesis of atopic dermatitis mainly to genetic susceptibility, abnormal skin barrier function, immune disorders, Staphylococcus aureus colonisation, microbiological dysfunction and vitamin D insufficiency. Epigenetic modifications are distinct genetic phenotypes resulting from environment-driven changes in chromosome functions in the absence of nuclear DNA sequence variation. Classic epigenetic events include DNA methylation, histone protein modifications and non-coding RNA regulation. Increasing evidence has indicated that epigenetic events are involved in the pathogenesis of atopic dermatitis by their effects on multiple signalling pathways which in turn influence the above factors. This review primarily analyses the function of epigenetic regulation in the pathogenesis of atopic dermatitis. In addition, it tries to make recommendations for personalised epigenetic treatment strategies for atopic dermatitis in the future.
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Affiliation(s)
- Chunli Chen
- Department of Dermatology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jinrong Zeng
- Department of Dermatology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jianyun Lu
- Department of Dermatology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
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Lamarche C, Ward-Hartstonge K, Mi T, Lin DTS, Huang Q, Brown A, Edwards K, Novakovsky GE, Qi CN, Kobor MS, Zebley CC, Weber EW, Mackall CL, Levings MK. Tonic-signaling chimeric antigen receptors drive human regulatory T cell exhaustion. Proc Natl Acad Sci U S A 2023; 120:e2219086120. [PMID: 36972454 PMCID: PMC10083618 DOI: 10.1073/pnas.2219086120] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 02/24/2023] [Indexed: 03/29/2023] Open
Abstract
Regulatory T cell (Treg) therapy is a promising approach to improve outcomes in transplantation and autoimmunity. In conventional T cell therapy, chronic stimulation can result in poor in vivo function, a phenomenon termed exhaustion. Whether or not Tregs are also susceptible to exhaustion, and if so, if this would limit their therapeutic effect, was unknown. To "benchmark" exhaustion in human Tregs, we used a method known to induce exhaustion in conventional T cells: expression of a tonic-signaling chimeric antigen receptor (TS-CAR). We found that TS-CAR-expressing Tregs rapidly acquired a phenotype that resembled exhaustion and had major changes in their transcriptome, metabolism, and epigenome. Similar to conventional T cells, TS-CAR Tregs upregulated expression of inhibitory receptors and transcription factors such as PD-1, TIM3, TOX and BLIMP1, and displayed a global increase in chromatin accessibility-enriched AP-1 family transcription factor binding sites. However, they also displayed Treg-specific changes such as high expression of 4-1BB, LAP, and GARP. DNA methylation analysis and comparison to a CD8+ T cell-based multipotency index showed that Tregs naturally exist in a relatively differentiated state, with further TS-CAR-induced changes. Functionally, TS-CAR Tregs remained stable and suppressive in vitro but were nonfunctional in vivo, as tested in a model of xenogeneic graft-versus-host disease. These data are the first comprehensive investigation of exhaustion in Tregs and reveal key similarities and differences with exhausted conventional T cells. The finding that human Tregs are susceptible to chronic stimulation-driven dysfunction has important implications for the design of CAR Treg adoptive immunotherapy strategies.
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Affiliation(s)
- Caroline Lamarche
- Department of Surgery, University of British Columbia, VancouverV6T 1Z4, BC, Canada
- BC Children’s Hospital Research Institute, VancouverV5Z 4H4, BC, Canada
- Department of Medicine, Hôpital Maisonneuve-Rosemont Research Center, Université de Montréal, MontrealH1T 2M4, QC, Canada
| | - Kirsten Ward-Hartstonge
- Department of Surgery, University of British Columbia, VancouverV6T 1Z4, BC, Canada
- BC Children’s Hospital Research Institute, VancouverV5Z 4H4, BC, Canada
- Department of Microbiology and Immunology, University of Otago, Dunedin9016, New Zealand
| | - Tian Mi
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - David T. S. Lin
- BC Children’s Hospital Research Institute, VancouverV5Z 4H4, BC, Canada
- Department of Medical Genetics, University of British Columbia, VancouverV6T 1Z4, BC, Canada
| | - Qing Huang
- Department of Surgery, University of British Columbia, VancouverV6T 1Z4, BC, Canada
- BC Children’s Hospital Research Institute, VancouverV5Z 4H4, BC, Canada
| | - Andrew Brown
- BC Children’s Hospital Research Institute, VancouverV5Z 4H4, BC, Canada
- School of Biomedical Engineering, University of British Columbia, VancouverV6T 1Z4, BC, Canada
| | - Karlie Edwards
- BC Children’s Hospital Research Institute, VancouverV5Z 4H4, BC, Canada
- Department of Medical Genetics, University of British Columbia, VancouverV6T 1Z4, BC, Canada
| | - Gherman E. Novakovsky
- BC Children’s Hospital Research Institute, VancouverV5Z 4H4, BC, Canada
- Department of Medical Genetics, University of British Columbia, VancouverV6T 1Z4, BC, Canada
| | - Christopher N. Qi
- Department of Surgery, University of British Columbia, VancouverV6T 1Z4, BC, Canada
- BC Children’s Hospital Research Institute, VancouverV5Z 4H4, BC, Canada
| | - Michael S. Kobor
- BC Children’s Hospital Research Institute, VancouverV5Z 4H4, BC, Canada
- Department of Medical Genetics, University of British Columbia, VancouverV6T 1Z4, BC, Canada
| | - Caitlin C. Zebley
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN38105
- Department of Bone Marrow Transplantation and Cellular Therapy, St. Jude Children’s Research Hospital, Memphis, TN38105
| | - Evan W. Weber
- Division of Oncology, Department of Pediatrics, University of Pennsylvania School of Medicine, Philadelphia, PA19104
| | - Crystal L. Mackall
- Department of Pediatrics, Stanford University School of Medicine, Stanford, CA94305
- Department of Medicine, Stanford University School of Medicine, Stanford, CA94305
| | - Megan K Levings
- Department of Surgery, University of British Columbia, VancouverV6T 1Z4, BC, Canada
- BC Children’s Hospital Research Institute, VancouverV5Z 4H4, BC, Canada
- School of Biomedical Engineering, University of British Columbia, VancouverV6T 1Z4, BC, Canada
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Cheng HH, Hung-Ke L, Sheu ML, Lee CY, Tsai YC, Lai DW. AHR/TET2/NT5E axis downregulation is associated with the risk of systemic lupus erythematosus and its progression. Immunology 2023; 168:654-670. [PMID: 36314527 DOI: 10.1111/imm.13600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 10/26/2022] [Indexed: 11/05/2022] Open
Abstract
The prognosis of systemic lupus erythematosus (SLE) is unpredictable. This study aimed to examine the regulatory mechanism of the AHR/TET2/NT5E pathway during SLE progression. The AHR, TET2 and NT5E expression levels were examined in T regulatory cells (Tregs) of patients with SLE. The correlation of AHR, TET2 or NT5E expression levels with the immunosuppressive functions of Tregs was analysed. In patients with SLE, the number of CD4+ IL2RA- FOXP3+ T cell subset was positively correlated with the SLE disease activity index value and negatively correlated with the AHR and TET2 expression levels in CD4+ IL2RA+ FOXP3+ Tregs. Transcriptional profiles of 79 patients with SLE obtained from the Gene Expression Omnibus database (GSE61635 dataset) revealed a significant positive correlation between the mRNA expression levels of AHR and TET2. In silico analysis predicted that the TET2 promoter comprises an AHR-binding site. Kynurenine (KYN) promoted the binding of AHR to the TET2 promoter in Tregs of patients with SLE and Jurkat T cell lines. Furthermore, NT5E expression was significantly downregulated in Tregs of patients with SLE, which can be attributed to the dysregulation of NT5E promoter methylation status induced by downregulated TET2 activity. Furthermore, the Treg immunosuppressive activity, which is mediated through the TET2 and A2AR-adenosine pathways, in the KYN-treated group was approximately two-fold higher than that in the control group. The AHR/TET2/NT5E axis mediates the Treg immunosuppressive activity. These findings provide novel insights for the development of therapeutic approaches for SLE and related autoimmune diseases.
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Affiliation(s)
- He-Hsiung Cheng
- Division of Allergy, Immunology and Rheumatology, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Lin Hung-Ke
- Division of Allergy, Immunology and Rheumatology, Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Meei-Ling Sheu
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
- Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Chun-Yi Lee
- Department of Pediatrics, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yi-Ching Tsai
- Immunomedicine Group, Department of Molecular Biology and Cell Research, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
| | - De-Wei Lai
- Experimental Animal Center, Department of Molecular Biology and Cell Research, Chang Bing Show Chwan Memorial Hospital, Changhua, Taiwan
- Department of Pharmacy and Master Program, Tajen University, Pingtung, Taiwan
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8
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Yang G, Wu G, Yao W, Guan L, Geng X, Liu J, Liu Z, Yang L, Huang Q, Zeng X, Yang P. 5-HT is associated with the dysfunction of regulating T cells in patients with allergic rhinitis. Clin Immunol 2022; 243:109101. [PMID: 36029976 DOI: 10.1016/j.clim.2022.109101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/06/2022] [Accepted: 08/20/2022] [Indexed: 11/03/2022]
Abstract
The dysfunction of regulating T lymphocytes (Treg) is associated with the pathogenesis of many diseases. Serotonin (5-HT) is capable of interacting with immune cells. The objective of the present study is to shed light on the role of 5-HT in regulating Treg activities. Blood samples were collected from patients with perennial allergic rhinitis (AR). Tregs were isolated from blood samples by magnetic cell sorting. The levels of 5-HT and other cytokines were determined by enzyme-linked immunosorbent assay. The results showed that serum 5-HT levels in patients with AR were higher than in healthy control (HC) subjects. A positive correlation was identified in the data between 5-HT concentrations and AR-related cytokine concentrations in the serum. A negative correlation was found between serum levels of 5-HT and the peripheral frequency of Treg. Exposure to 5-HT enhanced the expression of IL-6 and IL-21 in dendritic (DC) cells. Co-culture of 5-HT-primed DCs with Tregs led to the conversion of Th17 cells. STAT3 blockade efficiently abolished the 5-HT-associated conversion of Th17 cells from Tregs. In summary, patients with AR exhibited higher serum concentrations of 5-HT. 5-HT-primed DCs could convert Tregs to Th17 cells.
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Affiliation(s)
- Gui Yang
- Department of Otolaryngology, Longgang Central Hospital, Shenzhen, China
| | - Gaohui Wu
- Departments of Respirology and Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Wenkai Yao
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Li Guan
- Departments of Respirology and Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xiaorui Geng
- Department of Otolaryngology, Longgang E.N.T Hospital & Shenzhen Key Laboratory of E.N.T, Institute of E.N.T, Shenzhen, China
| | - Jiangqi Liu
- Department of Otolaryngology, Longgang E.N.T Hospital & Shenzhen Key Laboratory of E.N.T, Institute of E.N.T, Shenzhen, China
| | - Zhiqiang Liu
- Department of Otolaryngology, Longgang E.N.T Hospital & Shenzhen Key Laboratory of E.N.T, Institute of E.N.T, Shenzhen, China
| | - Liteng Yang
- Departments of Respirology and Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Qinmiao Huang
- Departments of Respirology and Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xianhai Zeng
- Department of Otolaryngology, Longgang E.N.T Hospital & Shenzhen Key Laboratory of E.N.T, Institute of E.N.T, Shenzhen, China
| | - Pingchang Yang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen, China; Institute of Allergy & Immunology of Shenzhen University, State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China.
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9
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Peng YQ, Wu ZC, Xu ZB, Fang SB, Chen DH, Zhang HY, Liu XQ, He BX, Chen D, Akdis CA, Fu QL. Mesenchymal stromal cells-derived small extracellular vesicles modulate DC function to suppress Th2 responses via IL-10 in patients with allergic rhinitis. Eur J Immunol 2022; 52:1129-1140. [PMID: 35415925 PMCID: PMC9545324 DOI: 10.1002/eji.202149497] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 02/01/2022] [Accepted: 04/11/2022] [Indexed: 12/02/2022]
Abstract
Mesenchymal stromal cells (MSCs) are well known for their immunoregulatory roles on allergic inflammation particularly by acting on T cells, B cells, and dendritic cells (DCs). MSC‐derived small extracellular vesicles (MSC‐sEV) are increasingly considered as one of the main factors for the effects of MSCs on immune responses. However, the effects of MSC‐sEV on DCs in allergic diseases remain unclear.
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Affiliation(s)
- Ya-Qi Peng
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zi-Cong Wu
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhi-Bin Xu
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shu-Bin Fang
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - De-Hua Chen
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hong-Yu Zhang
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Qing Liu
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Bi-Xin He
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dong Chen
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland.,Christine Kühne - Center for Research and Education (CK-CARE), Davos, Switzerland
| | - Qing-Ling Fu
- Otorhinolaryngology Hospital, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
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10
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Nur Husna SM, Md Shukri N, Tuan Sharif SE, Tan HTT, Mohd Ashari NS, Wong KK. IL-4/IL-13 Axis in Allergic Rhinitis: Elevated Serum Cytokines Levels and Inverse Association With Tight Junction Molecules Expression. Front Mol Biosci 2022; 9:819772. [PMID: 35372516 PMCID: PMC8969661 DOI: 10.3389/fmolb.2022.819772] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/08/2022] [Indexed: 12/11/2022] Open
Abstract
The IL-4/IL-13 axis is involved in the pathogenesis of allergic rhinitis (AR). In this study, we investigated the serum cytokines levels of IL-4, IL-5, IL-6, and IL-13 in AR patients, and the transcript expression levels of their receptors (i.e. IL4R, IL5RA, IL6R, and IL13RA1) in nasal epithelial cells of AR patients versus non-allergic controls. Nasal epithelial cells and blood samples of non-allergic controls (n = 30) and AR patients (n = 30) were collected to examine mRNA expression and serum cytokines levels, respectively. Bioinformatics analyses of IL-4/IL-13 receptor heterodimer association with tight junction (TJ) and JAK/STAT signaling genes were conducted in a gene expression profiling (GEP) dataset (GSE44037) of AR patients (n = 12) and healthy controls (n = 6). Serum IL-4, IL-5, IL-6 or IL-13 levels, and IL13RA1 transcript expression were significantly higher in AR patients compared with non-allergic controls. IL-4 and IL-13 serum levels were positively correlated with IL13RA1 expression in AR patients but not in non-allergic controls. In the GEP dataset (GSE44037), six TJ (CLDN4, CLDN7, CLDN12, CLDN15, TJP1, and TJP2) genes’ expressions were negatively correlated, respectively, with IL-4Rα/IL-13Rα1 heterodimeric receptor expression in AR patients and not in control samples. These six TJ genes contributed to the significant enrichment of tight junction Gene Ontology (GO ID: 0070160). Lastly, STATs DNA binding motif analysis showed that each of these TJ genes contains STATs binding consensus sequence within intronic and intergenic regions. Our results suggest that increased IL-4/IL-13 serum cytokines levels may contribute to decreased TJs expression via IL-4Rα/IL-13Rα1 heterodimeric receptor in nasal epithelium of AR patients.
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Affiliation(s)
- Siti Muhamad Nur Husna
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Norasnieda Md Shukri
- Department of Otorhinolaryngology, Head and Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
- Hospital Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | | | - Hern Tze Tina Tan
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Noor Suryani Mohd Ashari
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Kah Keng Wong
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
- *Correspondence: Kah Keng Wong,
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11
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Tan L, Fu L, Zheng L, Fan W, Tan H, Tao Z, Xu Y. TET2 Regulates 5-Hydroxymethylcytosine Signature and CD4 + T-Cell Balance in Allergic Rhinitis. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2022; 14:254-272. [PMID: 35255541 PMCID: PMC8914607 DOI: 10.4168/aair.2022.14.2.254] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/03/2022] [Accepted: 01/16/2022] [Indexed: 11/23/2022]
Abstract
Purpose Previous studies have shown the role of ten-eleven translocation 2 (TET2) in CD4+ T cells. However, its function in CD4+ T cells under allergic inflammation is unclear. We aimed to investigate the epigenomic distribution of DNA 5-hydroxymethylcytosine (5hmC) and the role of TET2 in CD4+ T cells of allergic rhinitis (AR). Methods The hMeDIP-seq was performed to identify sequences with 5hmC deposition in CD4+ T cells of AR patients. Tet2-deficient or wild type mice were stimulated with ovalbumin (OVA) to develop an AR mouse model. The histopathology in nasal mucosae, Th1/Th2/Treg/Th17 cell percentage, concentrations of Th-related cytokines, expression of Tet and differential hydroxymethylated genes (DhMG), and the global deposition of 5hmC in sorted CD4+ T cells were detected. Results Epigenome-wide 5hmC landscape and DhMG in the CD4+ T cells of AR patients were identified. Tet2 depletion did not led to spontaneous inflammation. However, under the stimulation of allergen, OVA, loss of Tet2 resulted in the exacerbation of allergic inflammation, which was characterized by severer allergic symptoms, more inflammatory cells infiltrating the nasal lamina propria, sharper imbalances between Th1/Th2 and Treg/Th17 cells, and excessive secretion of OVA-specific IgE and Th2-related cytokines. Moreover, altered mRNA production of several DhMG and sharp decrease in 5hmC deposition were also observed in Tet2-deficient OVA-exposed mice. Conclusions TET2 may regulate DNA 5hmC, DhMG expressions, and CD4+ T cell balance in AR.
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Affiliation(s)
- Lu Tan
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China.,Research Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lisheng Fu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China.,Research Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Li Zheng
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China.,Research Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wenjun Fan
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China.,Research Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Hanyu Tan
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China.,Research Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zezhang Tao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China.,Research Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yu Xu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China.,Research Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China.
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12
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Chen D, Zeng R, Teng G, Cai C, Pan T, Tu H, Lin H, Du Q, Wang H, Chen Y. Menstrual blood-derived mesenchymal stem cells attenuate inflammation and improve the mortality of acute liver failure combining with A2AR agonist in mice. J Gastroenterol Hepatol 2021; 36:2619-2627. [PMID: 33729623 PMCID: PMC8518829 DOI: 10.1111/jgh.15493] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 03/06/2021] [Accepted: 03/08/2021] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND AIM Acute liver failure (ALF) poses a serious public health issue. The menstrual blood-derived mesenchymal stem cells (MenSCs) have been applied to cure various liver-related diseases. However, the efficacy and mechanism are far from clear. This study aims to explore the efficacy and potential mechanism of MenSCs to cure ALF. METHODS We investigate the potential mechanism of MenSCs on the ALF in vitro and in vivo. A2A adenosine receptor (A2AR) activation was investigated as the potential reinforcer for MenSCs treatment. Lipid polysaccharide/d-galactosamine (d-GalN) was employed to induce ALF. Diverse techniques were used to measure the inflammatory cytokines and key signaling molecules. Hematoxylin-eosin stain and aminotransaminases were applied to evaluate the liver injury. Flow cytometry was employed to assess the T cells. RESULTS The MenSCs can decrease the lipid polysaccharide-induced inflammatory cytokine elevation and related signaling molecules in ALF, including TLR4, phosphorylated-NF-kBp65 (p-NF-kBp65), PI3K, and p-AKT, p-mTOR and p-IKK in vitro. Moreover, MenSCs also can significantly reverse the liver injury, inflammatory cytokines elevation and related signaling molecules increase, and Treg/Th17 ratio decrease in vivo. In addition, MenSCs plus A2AR agonist can enhance the above changes. CONCLUSIONS The MenSCs can attenuate the ALF-induced liver injury via inhibition of TLR4-mediated PI3K/Akt/mTOR/IKK signaling. Then, this inhibits the p-NF-κBp65 translocate into nuclear, which causes a decrease of inflammatory cytokines release. Moreover, A2AR agonist can play a synergic role with MenSCs and enhance the above-mentioned effects.
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Affiliation(s)
- Dazhi Chen
- Department of GastroenterologyPeking University First HospitalBeijingChina
| | - Ruichao Zeng
- Department of Oncological SurgeryThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina,Precision and Systems BiomedicineQIMR Berghofer Medical Research InstituteBrisbaneQueenslandAustralia,Faculty of MedicineThe University of QueenslandWoolloongabbaQueenslandAustralia
| | - Guigen Teng
- Department of GastroenterologyPeking University First HospitalBeijingChina
| | - Chao Cai
- Department of Infectious Diseases, Wenzhou Key Laboratory of HepatologyThe First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical UniversityWenzhouChina
| | - Tongtong Pan
- Department of Infectious Diseases, Wenzhou Key Laboratory of HepatologyThe First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical UniversityWenzhouChina
| | - Hanxiao Tu
- Department of Infectious Diseases, Wenzhou Key Laboratory of HepatologyThe First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical UniversityWenzhouChina
| | - Hongwei Lin
- Department of Infectious Diseases, Wenzhou Key Laboratory of HepatologyThe First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical UniversityWenzhouChina
| | - Qingjing Du
- Department of Infectious Diseases, Wenzhou Key Laboratory of HepatologyThe First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical UniversityWenzhouChina
| | - Huahong Wang
- Department of GastroenterologyPeking University First HospitalBeijingChina
| | - Yongping Chen
- Department of Infectious Diseases, Wenzhou Key Laboratory of HepatologyThe First Affiliated Hospital of Wenzhou Medical University, Hepatology Institute of Wenzhou Medical UniversityWenzhouChina
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13
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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: 3] [Impact Index Per Article: 1.0] [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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14
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Zhang YY, Feng BS, Zhang H, Yang G, Jin QR, Luo XQ, Ma N, Huang QM, Yang LT, Zhang GH, Liu DB, Yu Y, Liu ZG, Zheng PY, Yang PC. Modulating oxidative stress counteracts specific antigen-induced regulatory T-cell apoptosis in mice. Eur J Immunol 2021; 51:1748-1761. [PMID: 33811758 DOI: 10.1002/eji.202049112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/16/2021] [Accepted: 04/01/2021] [Indexed: 01/08/2023]
Abstract
Treg are known to have a central role in orchestrating immune responses, but less is known about the destiny of Treg after being activated by specific Ags. This study aimed to investigate the role of superoxide dismutase, an active molecule in the regulation of oxidative stress in the body, in the prevention of Treg apoptosis induced by specific Ags. Ag-specific Tregs were isolated from the DO11.10 mouse intestine. A food allergy mouse model was developed with ovalbumin as the specific Ag and here, we observed that exposure to specific Ag induced Treg apoptosis through converting the precursor of TGF-β to its mature form inside the Tregs. Oxidative stress was induced in Tregs upon exposure to specific Ags, in which Smad3 bound the latency-associated peptide to induce its degradation, converting the TGF-β precursor to its mature form, TGF-β. Suppressing oxidative stress in Tregs alleviated the specific Ag-induced Treg apoptosis in in vitro experiments and suppressed experimental food allergy by preventing the specific Ag-induced Treg apoptosis in the intestine. In conclusion, exposure to specific Ags induces Treg apoptosis and it can be prevented by upregulating superoxide dismutase or suppressing reactive oxidative species in Tregs.
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Affiliation(s)
- Yuan-Yi Zhang
- Department of Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen, P. R. China.,Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen University School of Medicine, Shenzhen, P. R. China.,Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, P. R. China
| | - Bai-Sui Feng
- Department of Gastroenterology, Second Affiliated Hospital, Zhengzhou University, Zhengzhou, P. R. China
| | - Huanping Zhang
- Department of Allergy Medicine, Bethune Hospital Affiliated to Shanxi Medical University, Taiyuan, P. R. China
| | - Gui Yang
- Department of Otolaryngology, Longgang Central Hospital, Shenzhen, P. R. China
| | - Qiao-Ruo Jin
- Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, P. R. China
| | - Xiang-Qian Luo
- Department of Pediatric Otolaryngology, Shenzhen Hospital, Southern Medical University, Shenzhen, P. R. China
| | - Na Ma
- Department of Gastroenterology, Second Affiliated Hospital, Zhengzhou University, Zhengzhou, P. R. China
| | - Qin-Miao Huang
- Department of Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen, P. R. China
| | - Li-Teng Yang
- Department of Respirology, Third Affiliated Hospital of Shenzhen University, Shenzhen, P. R. China
| | - Guo-Hao Zhang
- Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, P. R. China
| | - Da-Bo Liu
- Department of Pediatric Otolaryngology, Shenzhen Hospital, Southern Medical University, Shenzhen, P. R. China
| | - Yong Yu
- Department of Gastroenterology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou, P. R. China
| | - Zhi-Gang Liu
- Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, P. R. China
| | - Peng-Yuan Zheng
- Department of Gastroenterology, Fifth Affiliated Hospital, Zhengzhou University, Zhengzhou, P. R. China
| | - Ping-Chang Yang
- Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Shenzhen University School of Medicine, Shenzhen, P. R. China.,Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, P. R. China
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15
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Zhou F, Liu P, Lv H, Gao Z, Chang W, Xu Y. miR-31 attenuates murine allergic rhinitis by suppressing interleukin-13-induced nasal epithelial inflammatory responses. Mol Med Rep 2020; 23:42. [PMID: 33179116 PMCID: PMC7684864 DOI: 10.3892/mmr.2020.11680] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 09/25/2020] [Indexed: 12/20/2022] Open
Abstract
The present study aimed to investigate whether microRNA (miR)-31 exerted therapeutic potential in allergic rhinitis (AR) and to explore its underlying mechanism. Firstly, the expression levels of miR-31 were detected by reverse transcription-quantitative PCR in the nasal mucosa of patients and mice. Subsequently, an ovalbumin (OVA)-induced animal model of AR was constructed. Allergic symptom score, histopathological characteristics, OVA-specific immunoglobulin E (IgE) titers, and T-helper (Th)1 and Th2 cell-related cytokine levels were analyzed in OVA-sensitized mice, miR-31-overexpressing mice, miR-negative control mice and control mice. Furthermore, interleukin (IL)-13-stimulated nasal epithelial cells (NECs) were used to assess the effects of miR-31 on the production of IL-13-induced inflammatory cytokines and mucin 5AC by performing western blotting and ELISA. The expression levels of miR-31 were significantly decreased in the nasal mucosa of the AR group compared with those in the control group. Moreover, upregulation of miR-31 markedly attenuated sneezing and nasal rubbing events, reduced nasal eosinophil infiltration and goblet cell hyperplasia, and decreased the levels of OVA-specific IgE and Th2-related cytokines. In addition, subsequent in vitro experiments showed that upregulation of miR-31 inhibited IL-13 receptor α1 chain expression and signal transducer and activator of transcription 6 phosphorylation in NECs. Furthermore, miR-31 suppressed IL-13-induced expression of thymic stromal lymphopoietin, granulocyte-macrophage colony-stimulating factor, eotaxin and mucin 5AC in NECs. In conclusion, these data revealed that miR-31 could ameliorate AR by suppressing IL-13-induced nasal epithelial inflammatory responses, and thus may serve as a novel therapeutic target for AR.
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Affiliation(s)
- Fangwei Zhou
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Peiqiang Liu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Hao Lv
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Ziang Gao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Wenchuan Chang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Yu Xu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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16
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Sun B, Feng D, Wang G, Yu X, Dong Z, Gao L. DL-propargylglycine administration inhibits TET2 and FOXP3 expression and alleviates symptoms of neonatal Cows' milk allergy in mouse model. Autoimmunity 2020; 53:467-475. [PMID: 33078976 DOI: 10.1080/08916934.2020.1836490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Cows' milk allergy (CMA) is a hypersensitivity immune reaction brought on by specific immunologic mechanisms to cow's milk proteins. As one of the most common food allergies in infants, the incidence of CMA during the first year of life is estimated to be nearly 7.5%. Due to the limitation in the knowledge of the pathological mechanism underlying CMA, however, the clinical interventions and therapies remain very unsatisfactory. AIM OF THE STUDY The transcriptional factor FOXP3 possesses crucial roles in CMA, and increased FOXP3 mRNA expression has a predictive function in faster acquisition of tolerance in infants with CMA. But the exact mechanism remains not fully elucidated. METHODS For PAG treatment, PAG (dissolved in saline 30 mg/mL, 0, 5, 10, 20 mg/kg BW) was administered daily intraperitoneally (ip) for one week at the time that 6 weeks after the CMP sensitisation. RESULTS In the present study, we revealed that the expression of FOXP3 is significantly up-regulated in PBMCs from CMA patients and CMA mice on mRNA and protein level. Furthermore, a dramatic reduction in the FOXP3 TSDR methylation and a significant increase in the expression of TET2 are observed in CMA patients and CMA mice. More importantly, we found that propargylglycine (PAG) significantly alleviates symptoms of CMA in mice by suppressing the expression of FOXP3 through restoring TET2 expression. CONCLUSIONS Our work revealed a novel function of PAG on CMA, which may provide a deeper insight into the pathomechanism of CMA and a novel therapy target for CMA clinical interventions.
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Affiliation(s)
- Beibei Sun
- Department of Gastroenterology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou, China
| | - Dongjin Feng
- Department of Gastroenterology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou, China
| | - Guangmeng Wang
- Department of Gastroenterology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou, China
| | - Xiaohong Yu
- Department of Gastroenterology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou, China
| | - Zhongmao Dong
- Department of Gastroenterology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou, China
| | - Ling Gao
- Department of Gastroenterology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou, China
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