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Mao J, Feng Y, Zhu X, Ma F. The Molecular Mechanisms of HLA-G Regulatory Function on Immune Cells during Early Pregnancy. Biomolecules 2023; 13:1213. [PMID: 37627278 PMCID: PMC10452754 DOI: 10.3390/biom13081213] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/01/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
Human leukocyte antigen-G (HLA-G) is a non-classical human major histocompatibility complex (MHC-I) molecule with the membrane-bound and soluble types. HLA-G is primarily expressed by extravillous cytotrophoblast cells located at the maternal-fetal interface during pregnancy and is essential in establishing immune tolerance. This review provides a comprehensive understanding of the multiple molecular mechanisms by which HLA-G regulates the immune function of NK cells. It highlights that HLA-G binds to microRNA to suppress NK cell cytotoxicity and stimulate the secretion of growth factors to support fetal growth. The interactions between HLA-G and NK cells also activate senescence signaling, promoting spiral artery remodeling and maintaining the balance of maternal-fetal immune responses. In addition, HLA-G can inhibit the function of decidual T cells, dendritic cells, and macrophages. Overall, the interaction between trophoblast cells and immune cells mediated by HLA-G plays a crucial role in understanding immune regulation at the maternal-fetal interface and offers insights into potential treatments for pregnancy-related diseases.
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Affiliation(s)
- Jia Mao
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China;
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, State Key Laboratory of Biotherapy and Cancer Center, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Ying Feng
- Department of Histology, Embryology and Neurobiology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China;
| | - Xiaofeng Zhu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, State Key Laboratory of Biotherapy and Cancer Center, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Fang Ma
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China;
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
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2
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Liu S, Bos NA, Verschuuren EAM, van Baarle D, Westra J. Biological Characteristics of HLA-G and Its Role in Solid Organ Transplantation. Front Immunol 2022; 13:902093. [PMID: 35769475 PMCID: PMC9234285 DOI: 10.3389/fimmu.2022.902093] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/19/2022] [Indexed: 11/18/2022] Open
Abstract
Organ transplantation is a lifesaving option for patients with advanced diseases. Rejection is regarded as one of the most severe risk factors post-transplantation. A molecule that contributes to immune tolerance and resisting rejection is human leukocyte antigen (HLA)-G, which belongs to the non-classical major histocompatibility complex class (MHC) I family. HLA-G was originally found to play a role during pregnancy to maintain immune tolerance between mother and child. It is expressed in the placenta and detected in several body fluids as soluble factor as well as different membrane isoforms on cells. Recent findings on HLA-G show that it can also play multifaceted roles during transplantation. This review will explain the general characteristics and biological function of HLA-G and summarize the views supporting the tolerogenic and other roles of HLA-G to better understand its role in solid organ transplantation (SOT) and its complications. Finally, we will discuss potential future research on the role of HLA-G in prevention, diagnosis, and treatment in SOT.
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Affiliation(s)
- Siqi Liu
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Nicolaas A. Bos
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Erik A. M. Verschuuren
- Department of Pulmonary Diseases, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Debbie van Baarle
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, Groningen, Netherlands
| | - Johanna Westra
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- *Correspondence: Johanna Westra,
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Dou M, Ding C, Zheng B, Deng G, Zhu K, Xu C, Xue W, Ding X, Zheng J, Tian P. Immune-Related Genes for Predicting Future Kidney Graft Loss: A Study Based on GEO Database. Front Immunol 2022; 13:859693. [PMID: 35281025 PMCID: PMC8913884 DOI: 10.3389/fimmu.2022.859693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 02/08/2022] [Indexed: 11/22/2022] Open
Abstract
Objective We aimed to identify feature immune-related genes that correlated with graft rejection and to develop a prognostic model based on immune-related genes in kidney transplantation. Methods Gene expression profiles were obtained from the GEO database. The GSE36059 dataset was used as a discovery cohort. Then, differential expression analysis and a machine learning method were performed to select feature immune-related genes. After that, univariate and multivariate Cox regression analyses were used to identify prognosis-related genes. A novel Riskscore model was built based on the results of multivariate regression. The levels of these feature genes were also confirmed in an independent single-cell dataset and other GEO datasets. Results 15 immune-related genes were expressed differently between non-rejection and rejection kidney allografts. Those differentially expressed immune-related genes (DE-IRGs) were mainly associated with immune-related biological processes and pathways. Subsequently, a 5-immune-gene signature was constructed and showed favorable predictive results in the GSE21374 dataset. Recipients were divided into the high-risk and low-risk groups according to the median value of RiskScore. The GO and KEGG analysis indicated that the differentially expressed genes (DEGs) between high-risk and low-risk groups were mainly involved in inflammatory pathways, chemokine-related pathways, and rejection-related pathways. Immune infiltration analysis demonstrated that RiskScore was potentially related to immune infiltration. Kaplan-Meier survival analysis suggested that recipients in the high-risk group had poor graft survival. AUC values of 1- and 3-year graft survival were 0.804 and 0.793, respectively. Conclusion Our data suggest that this immune-related prognostic model had good sensitivity and specificity in predicting the 1- and 3-year kidney graft survival and might act as a useful tool for predicting kidney graft loss.
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Affiliation(s)
- Meng Dou
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Chenguang Ding
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Bingxuan Zheng
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Ge Deng
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Kun Zhu
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Cuixiang Xu
- Center of Shaanxi Provincial Clinical Laboratory, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Wujun Xue
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Xiaoming Ding
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jin Zheng
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Puxun Tian
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Puxun Tian,
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Wang LJ, Ma XB, Xia HY, Sun X, Yu L, Yang Q, Hu ZQ, Zhao YH, Hu W, Ran JH. Identification of Biomarkers for Predicting Allograft Rejection following Kidney Transplantation Based on the Weighted Gene Coexpression Network Analysis. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9933136. [PMID: 34368360 PMCID: PMC8342162 DOI: 10.1155/2021/9933136] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 07/03/2021] [Indexed: 12/02/2022]
Abstract
Kidney transplantation is the promising treatment of choice for chronic kidney disease and end-stage kidney disease and can effectively improve the quality of life and survival rates of patients. However, the allograft rejection following kidney transplantation has a negative impact on transplant success. Therefore, the present study is aimed at screening novel biomarkers for the diagnosis and treatment of allograft rejection following kidney transplantation for improving long-term transplant outcome. In the study, a total of 8 modules and 3065 genes were identified by WGCNA based on the GSE46474 and GSE15296 dataset from the Gene Expression Omnibus (GEO) database. Moreover, the results of Gene Ontology (GO) annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis showed that these genes were mainly involved in the immune-related biological processes and pathways. Thus, 317 immune-related genes were selected for further analysis. Finally, 5 genes (including CD200R1, VAV2, FASLG, SH2D1B, and RAP2B) were identified as the candidate biomarkers based on the ROC and difference analysis. Furthermore, we also found that in the 5 biomarkers an interaction might exist among each other in the protein and transcription level. Taken together, our study identified CD200R1, VAV2, FASLG, SH2D1B, and RAP2B as the candidate diagnostic biomarkers, which might contribute to the prevention and treatment of allograft rejection following kidney transplantation.
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Affiliation(s)
- Li-Jun Wang
- Department of Urinary Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital, Kunming, Yunnan Province, China
| | - Xiao-Bo Ma
- Department of Clinical Laboratory, Yunnan Institute of Experimental Diagnosis, The First Affiliated Hospital of Kunming Medical University, Yunnan Key Laboratory of Laboratory Medicine, Kunming, Yunnan Province, China
| | - Hong-Ying Xia
- Department of Pharmacy, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan Province, China
| | - Xun Sun
- Department of Urinary Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital, Kunming, Yunnan Province, China
| | - Lu Yu
- Department of Pathology, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital, Kunming, Yunnan Province, China
| | - Qian Yang
- Department of Pathology, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital, Kunming, Yunnan Province, China
| | - Zong-Qiang Hu
- Department of Hepatopancreatobiliary Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital, Kunming, Yunnan Province, China
| | - Yong-Heng Zhao
- Department of Urinary Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital, Kunming, Yunnan Province, China
| | - Wei Hu
- Department of Urinary Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital, Kunming, Yunnan Province, China
| | - Jiang-Hua Ran
- Department of Hepatopancreatobiliary Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital, Kunming, Yunnan Province, China
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5
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Contini P, Murdaca G, Puppo F, Negrini S. HLA-G Expressing Immune Cells in Immune Mediated Diseases. Front Immunol 2020; 11:1613. [PMID: 32983083 PMCID: PMC7484697 DOI: 10.3389/fimmu.2020.01613] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 06/17/2020] [Indexed: 12/12/2022] Open
Abstract
HLA-G is a HLA class Ib antigen that possesses immunomodulatory properties. HLA-G-expressing CD4+ and CD8+ T lymphocytes, NK cells, monocytes, and dendritic cells with immunoregulatory functions are present in small percentages of patients with physiologic conditions. Quantitative and qualitative derangements of HLA-G+ immune cells have been detected in several conditions in which the immune system plays an important role, such as infectious, neoplastic, and autoimmune diseases as well as in complications from transplants and pregnancy. These observations strongly support the hypothesis that HLA-G+ immune cells may be implicated in the complex mechanisms underlying the pathogenesis of these disorders.
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Affiliation(s)
- P Contini
- Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Giuseppe Murdaca
- Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Francesco Puppo
- Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Simone Negrini
- Department of Internal Medicine, University of Genoa, Genoa, Italy
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6
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Mirzakhani M, Shahbazi M, Akbari R, Oliaei F, Asgharpour M, Nikoueinejad H, Mohammadnia-Afrouzi M. Reduced CD4 + CD25 ++ CD45RA - Foxp3 hi activated regulatory T cells and its association with acute rejection in patients with kidney transplantation. Transpl Immunol 2020; 60:101290. [PMID: 32240775 DOI: 10.1016/j.trim.2020.101290] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/18/2020] [Accepted: 03/29/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND It was found that regulatory T cells (Tregs) importantly affect the maintenance of the kidney graft. However, Tregs are a heterogeneous population with less to more suppressive activity. The aim of this study was to determine the effects of different subsets of Tregs, as well as their ratio to effector T cells (Teff), on kidney transplantation outcomes. METHODS A total of 58 participants were enrolled in this study and divided into four groups: (i) first kidney transplant recipients (stable 1); (ii) second kidney transplant recipients (stable 2); (iii) transplant recipients with acute rejection (AR); and (iv) healthy control subjects. By using flow cytometer, the frequencies of CD4+ CD25++ CD45RA- Foxp3hi activated Tregs (aTregs), CD4+ CD25+ CD45RA+ Foxp3lo resting Tregs (rTregs), CD4+ CD25+ CD45RA- Foxp3lo non-suppressive T cells, CD4+ CD25+ Foxp3- cells Teff, and total Tregs were analyzed in all subjects. RESULTS The frequency of aTregs (as well as the ratio of aTregs/Tregs) was significantly lower in the AR patients than the other three groups. In contrast to AR patients, stables 1 and 2 had a higher aTreg/Treg ratio than those in the control group. Although patients with AR had a significantly lower total Tregs than the other three groups, the balance of total Tregs and Teff was similar between patients with and without AR. CONCLUSION Patients with AR had poorer immunoregulatory properties than those with normal graft functioning, as well as those in the control group. These reduced immunoregulatory properties in patients with AR could lead to graft rejection.
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Affiliation(s)
- Mohammad Mirzakhani
- Student Research Committee, School of Medicine, Babol University of Medical Sciences, Babol, Iran; Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran; Immunoregulation Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Mehdi Shahbazi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran; Immunoregulation Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Roghayeh Akbari
- Kidney Transplantation Center, Shahid Beheshti Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Farshid Oliaei
- Kidney Transplantation Center, Shahid Beheshti Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Masoumeh Asgharpour
- Department of Nephrology, Rouhani Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Hassan Nikoueinejad
- Department of Immunology, Baqiyatallah University of Medical Sciences, Tehran, Iran; Nephrology and Urology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mousa Mohammadnia-Afrouzi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran; Immunoregulation Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.
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7
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Mirzakhani M, Shahbazi M, Oliaei F, Mohammadnia-Afrouzi M. Immunological biomarkers of tolerance in human kidney transplantation: An updated literature review. J Cell Physiol 2018; 234:5762-5774. [PMID: 30362556 DOI: 10.1002/jcp.27480] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/06/2018] [Indexed: 12/11/2022]
Abstract
The half-life of transplanted kidneys is <10 years. Acute or chronic rejections have a negative impact on transplant outcome. Therefore, achieving to allograft tolerance for improving long-term transplant outcome is a desirable goal of transplantation field. In contrast, there are evidence that distinct immunological characteristics lead to tolerance in some transplant recipients. In contrast, the main reason for allograft loss is immunological responses. Various immune cells including T cells, B cells, dendritic cells, macrophages, natural killer, and myeloid-derived suppressor cells damage graft tissue and, thereby, graft loss happens. Therefore, being armed with the comprehensive knowledge about either preimmunological or postimmunological characteristics of renal transplant patients may help us to achieve an operational tolerance. In the present study, we are going to review and discuss immunological characteristics of renal transplant recipients with rejection and compare them with tolerant subjects.
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Affiliation(s)
- Mohammad Mirzakhani
- Student Research Committee, School of Medicine, Babol University of Medical Sciences, Babol, Iran.,Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Department of Immunology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Mehdi Shahbazi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Immunoregulation Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Department of Immunology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Farshid Oliaei
- Kidney Transplantation Center, Shahid Beheshti Hospital, Babol University of Medical Sciences, Babol, Iran
| | - Mousa Mohammadnia-Afrouzi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Infectious Diseases and Tropical Medicine Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Immunoregulation Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Department of Immunology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
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8
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Pankratz S, Ruck T, Meuth SG, Wiendl H. CD4(+)HLA-G(+) regulatory T cells: Molecular signature and pathophysiological relevance. Hum Immunol 2016; 77:727-33. [PMID: 26826445 DOI: 10.1016/j.humimm.2016.01.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 01/20/2016] [Indexed: 12/21/2022]
Abstract
The regulation of potentially harmful immune responses by regulatory T (Treg) cells is essential for maintaining peripheral immune tolerance and homeostasis. Especially CD4(+) Treg cells have been regarded as pivotal regulators of autoreactive and inflammatory responses as well as inducers of immune tolerance by using a variety of immune suppressive mechanisms. Besides the well-known classical CD4(+)CD25(+)FoxP3(+) Treg cells, CD4(+) T cells expressing the immune tolerizing molecule human leukocyte antigen G (HLA-G) have been recently described as another potent thymus-derived Treg (tTreg) cell subset. Albeit both tTreg subsets share common molecular characteristics, the mechanisms of their immunosuppressive function differ fundamentally. Dysfunction and numerical abnormalities of classical CD4(+) tTreg cells have been implicated in the pathogenesis of several immune-mediated diseases such as multiple sclerosis (MS). Clearly, a deeper understanding of the various CD4(+) tTreg subsets and also the underlying mechanisms of impaired immune tolerance in these disorders are essential for the development of potential therapeutic strategies. This review focuses on the current knowledge on defining features and functioning of HLA-G(+)CD4(+) tTreg cells as well as their emerging role in various pathologies with special emphasis on the pathogenesis of MS. Furthermore, future research possibilities together with potential therapeutic applications are discussed.
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Affiliation(s)
- Susann Pankratz
- Department of Neurology, University of Muenster, Albert-Schweitzer-Campus 1, 48149 Muenster, Germany.
| | - Tobias Ruck
- Department of Neurology, University of Muenster, Albert-Schweitzer-Campus 1, 48149 Muenster, Germany.
| | - Sven G Meuth
- Department of Neurology, University of Muenster, Albert-Schweitzer-Campus 1, 48149 Muenster, Germany.
| | - Heinz Wiendl
- Department of Neurology, University of Muenster, Albert-Schweitzer-Campus 1, 48149 Muenster, Germany.
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Žilinská Z, Bandžuchová H, Chrastina M, Trebatický B, Breza J, Handzušová M, Kuba D, Tirpáková J, Pavlechová M, Dedinská I, Rychlý B, Poláková K. Expression of HLA-G transcripts in graft biopsy samples of renal transplant recipients. Transpl Immunol 2015; 33:159-65. [DOI: 10.1016/j.trim.2015.10.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 10/02/2015] [Accepted: 10/04/2015] [Indexed: 10/22/2022]
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10
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Bian X, Si Y, Zhang M, Wei R, Yang X, Ren H, Zheng G, Wang C, Zhang Y. Down-expression of miR-152 lead to impaired anti-tumor effect of NK via upregulation of HLA-G. Tumour Biol 2015; 37:3749-56. [PMID: 26468017 DOI: 10.1007/s13277-015-3669-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/15/2015] [Indexed: 02/05/2023] Open
Abstract
It is known that chronic HBV infection (CHB) is the major risk factor for hepatocellular carcinoma (HCC) because CHB could not only cause liver tumorigenesis but also lead to change of local microenviroment and lower immune response to infected and cancerous cells (immune tolerance). Human leucocyte antigen-G (HLA-G) belongs to a non-classic MHC-I family and was considered to be an immune tolerance molecule, which could bind to immunosuppressive receptors of natural killer cell (NK) and T cells and trigger immunosuppressive signaling. Recently, numerous studies highlighted that microRNAs (miRNAs) were significantly differentially expressed in HCC tumorigenesis, and the expression was tissue-specific, indicating that miRNAs may cause great epigenetic changes in HCC tumorigenesis. In this study, we found that the expression of HLA-G was upregulated by hepatitis B virus (HBV) infection and miR-152; a HLA-G-targeting miRNA was downregulated by HBV infection. And high expression of HLA-G further suppressed NK against cancer cells, providing a new concept that miR-152 was involved in HBV-induced hepatocellular carcinoma.
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Affiliation(s)
- Xiaokun Bian
- Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan, China.,Department of Clinical Laboratory, Weifang People's Hospital, Shandong, China
| | - Yuanquan Si
- Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan, China.,Department of Clinical Laboratory, Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Min Zhang
- Department of Medicine, Shandong Provincial Chest Hospital, Jinan, China
| | - Ran Wei
- Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan, China
| | - Xiaomin Yang
- Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan, China
| | - Hao Ren
- Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan, China
| | - Guixi Zheng
- Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan, China
| | - Chuanxin Wang
- Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan, China
| | - Yi Zhang
- Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan, China.
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11
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Poláková K, Bandžuchová H, Žilinská Z, Chreňová S, Kuba D, Russ G. Analysis of HLA-G expression in serum and biopsy samples of kidney transplant recipients. Immunobiology 2015; 220:533-7. [DOI: 10.1016/j.imbio.2014.10.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 10/17/2014] [Accepted: 10/20/2014] [Indexed: 01/05/2023]
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12
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13
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Pabón MA, Navarro CE, Osorio JC, Gómez N, Moreno JP, Donado AF, Pérez HC, Lozano E. Impact of human leukocyte antigen molecules E, F, and G on the outcome of transplantation. Transplant Proc 2014; 46:2957-65. [PMID: 25420801 DOI: 10.1016/j.transproceed.2014.07.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND HLA class I molecules are divided into classic (Ia) and nonclassic (Ib). Nonclassic HLA molecules (E, F, and G) have acquired relevance owing to their immunomodulatory properties and possible repercussions for induction of tolerance in organ transplantation. The objective of this study was to identify the impact of these molecules on transplant success or failure. METHODS A systematic review of literature was performed with the use of MeSH terms in Pubmed. Clinical trials, randomized clinical trials, case-control studies, and reviews from the past 15 years were included. RESULTS HLA-E*0103/E*0103 genotype is associated with lower risk of graft-versus-host disease, decreased mortality, and greater disease-free survival after bone marrow transplantation. There were no significant associations between HLA-F and clinical outcomes in any of the studies. Elevated serum levels of HLA-G were associated with a lower incidence of rejection in hepatic and renal transplantation during the 1st year and lower T-cell response after bone marrow, liver, and kidney transplantation. Detection of mRNA of HLA-G1 was also associated with less graft rejection. CONCLUSIONS Current literature suggests that nonclassic HLA Ib molecules play an important role in immunotolerance in organ transplantation; however, more studies are required to predict outcomes related to specific genotypes.
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Affiliation(s)
- M A Pabón
- Organ and Tissues Transplant Group, Medical School, National University of Colombia, Bogotá, Colombia.
| | - C E Navarro
- Organ and Tissues Transplant Group, Medical School, National University of Colombia, Bogotá, Colombia
| | - J C Osorio
- Organ and Tissues Transplant Group, Medical School, National University of Colombia, Bogotá, Colombia; Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - N Gómez
- Organ and Tissues Transplant Group, Medical School, National University of Colombia, Bogotá, Colombia
| | - J P Moreno
- Organ and Tissues Transplant Group, Medical School, National University of Colombia, Bogotá, Colombia
| | - A F Donado
- Organ and Tissues Transplant Group, Medical School, National University of Colombia, Bogotá, Colombia
| | - H C Pérez
- Organ and Tissues Transplant Group, Medical School, National University of Colombia, Bogotá, Colombia
| | - E Lozano
- Organ and Tissues Transplant Group, Medical School, National University of Colombia, Bogotá, Colombia; Hospital Universitario San Ignacio, Bogotá, Colombia
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