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Shao W, Ding H, Wang Y, Shi Z, Zhang H, Meng F, Chang Q, Duan H, Lu K, Zhang L, Xu J. Key genes and immune pathways in T-cell mediated rejection post-liver transplantation identified via integrated RNA-seq and machine learning. Sci Rep 2024; 14:24315. [PMID: 39414868 DOI: 10.1038/s41598-024-74874-8] [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: 06/14/2024] [Accepted: 09/30/2024] [Indexed: 10/18/2024] Open
Abstract
Liver transplantation is the definitive treatment for end-stage liver disease, yet T-cell mediated rejection (TCMR) remains a major challenge. This study aims to identify key genes associated with TCMR and their potential biological processes and mechanisms. The GSE145780 dataset was subjected to differential expression analysis, weighted gene co-expression network analysis (WGCNA), and machine learning algorithms to pinpoint key genes associated with TCMR. Gene Set Enrichment Analysis (GSEA), immune infiltration analysis, and regulatory networks were constructed to ascertain the biological relevance of these genes. Expression validation was performed using single-cell RNA-seq (scRNA-seq) data and liver biopsy tissues from patients. We identified 5 key genes (ITGB2, FCER1G, IL-18, GBP1, and CD53) that are associated with immunological functions, such as chemotactic activity, antigen processing, and T cell differentiation. GSEA highlighted enrichment in chemokine signaling and antigen presentation pathways. A lncRNA-miRNA-mRNA network was delineated, and drug target prediction yielded 26 potential drugs. Evaluation of expression levels in non-rejection (NR) and TCMR groups exhibited significant disparities in T cells and myeloid cells. Tissue analyses from patients corroborated the upregulation of GBP1, IL-18, CD53, and FCER1G in TCMR cases. Through comprehensive analysis, this research has identified 4 genes intimately connected with TCMR following liver transplantation, shedding light on the underlying immune activation pathways and suggesting putative targets for therapeutic intervention.
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Affiliation(s)
- Wenhao Shao
- Faculty of Graduate Studies, Shanxi Medical University, Taiyuan, 030000, China
| | - Huaxing Ding
- Faculty of Graduate Studies, Shanxi Medical University, Taiyuan, 030000, China
| | - Yan Wang
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplant Center, The First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Institute of Liver Diseases and Organ Transplantation, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Zhiyong Shi
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplant Center, The First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Institute of Liver Diseases and Organ Transplantation, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Hezhao Zhang
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplant Center, The First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China
- Institute of Liver Diseases and Organ Transplantation, Shanxi Medical University, Taiyuan, 030001, Shanxi, China
| | - Fanxiu Meng
- Faculty of Graduate Studies, Shanxi Medical University, Taiyuan, 030000, China
| | - Qingyao Chang
- Faculty of Graduate Studies, Shanxi Medical University, Taiyuan, 030000, China
| | - Haojiang Duan
- Faculty of Graduate Studies, Shanxi Medical University, Taiyuan, 030000, China
| | - Kairui Lu
- Faculty of Graduate Studies, Shanxi Medical University, Taiyuan, 030000, China
| | - Li Zhang
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplant Center, The First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
- Institute of Liver Diseases and Organ Transplantation, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
| | - Jun Xu
- Department of Hepatobiliary and Pancreatic Surgery and Liver Transplant Center, The First Hospital of Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
- Institute of Liver Diseases and Organ Transplantation, Shanxi Medical University, Taiyuan, 030001, Shanxi, China.
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Li W, Lv Y, Sun Y. Roles of non-coding RNA in megakaryocytopoiesis and thrombopoiesis: new target therapies in ITP. Platelets 2023; 34:2157382. [PMID: 36550091 DOI: 10.1080/09537104.2022.2157382] [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: 12/24/2022]
Abstract
Noncoding RNAs (ncRNAs) are a group of RNA molecules that cannot encode proteins, and a better understanding of the complex interaction networks coordinated by ncRNAs will provide a theoretical basis for the development of therapeutics targeting the regulatory effects of ncRNAs. Platelets are produced upon the differentiation of hematopoietic stem cells into megakaryocytes, 1011 per day, and are renewed every 8-9 days. The process of thrombopoiesis is affected by multiple factors, in which ncRNAs also exert a significant regulatory role. This article reviewed the regulatory roles of ncRNAs, mainly microRNAs (miRNAs), circRNAs (circular RNAs), and long non-coding RNAs (lncRNAs), in thrombopoiesis in recent years as well as their roles in primary immune thrombocytopenia (ITP).
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Affiliation(s)
- Wuquan Li
- College of Pharmacy, Binzhou Medical University, Yantai, China
| | - Yan Lv
- College of Life Science, Yantai University, Yantai, China
| | - Yeying Sun
- College of Pharmacy, Binzhou Medical University, Yantai, China
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Allegra A, Cicero N, Mirabile G, Giorgianni CM, Gangemi S. Novel Biomarkers for Diagnosis and Monitoring of Immune Thrombocytopenia. Int J Mol Sci 2023; 24:ijms24054438. [PMID: 36901864 PMCID: PMC10003036 DOI: 10.3390/ijms24054438] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/12/2023] [Accepted: 02/21/2023] [Indexed: 03/12/2023] Open
Abstract
Lower-than-normal platelet counts are a hallmark of the acquired autoimmune illness known as immune thrombocytopenia, which can affect both adults and children. Immune thrombocytopenia patients' care has evolved significantly in recent years, but the disease's diagnosis has not, and it is still only clinically achievable with the elimination of other causes of thrombocytopenia. The lack of a valid biomarker or gold-standard diagnostic test, despite ongoing efforts to find one, adds to the high rate of disease misdiagnosis. However, in recent years, several studies have helped to elucidate a number of features of the disease's etiology, highlighting how the platelet loss is not only caused by an increase in peripheral platelet destruction but also involves a number of humoral and cellular immune system effectors. This made it possible to identify the role of immune-activating substances such cytokines and chemokines, complement, non-coding genetic material, the microbiome, and gene mutations. Furthermore, platelet and megakaryocyte immaturity indices have been emphasized as new disease markers, and prognostic signs and responses to particular types of therapy have been suggested. Our review's goal was to compile information from the literature on novel immune thrombocytopenia biomarkers, markers that will help us improve the management of these patients.
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Affiliation(s)
- Alessandro Allegra
- Division of Hematology, Department of Human Pathology in Adulthood and Childhood “Gaetano Barresi”, University of Messina, 98100 Messina, Italy
- Correspondence:
| | - Nicola Cicero
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences (BIOMORF), University of Messina, 98100 Messina, Italy
| | - Giuseppe Mirabile
- Division of Hematology, Department of Human Pathology in Adulthood and Childhood “Gaetano Barresi”, University of Messina, 98100 Messina, Italy
| | - Concetto Mario Giorgianni
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences (BIOMORF), University of Messina, 98100 Messina, Italy
| | - Sebastiano Gangemi
- Allergy and Clinical Immunology Unit, Department of Clinical and Experimental Medicine, University of Messina, 98100 Messina, Italy
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Tan JH, Ahmad Azahari AHS, Ali A, Ismail NAS. Scoping Review on Epigenetic Mechanisms in Primary Immune Thrombocytopenia. Genes (Basel) 2023; 14:555. [PMID: 36980827 PMCID: PMC10048672 DOI: 10.3390/genes14030555] [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: 12/24/2022] [Revised: 02/07/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
Immune Thrombocytopenia (ITP) is an autoimmune blood disorder that involves multiple pathways responsible for the homeostasis of the immune system. Numerous pieces of literature have proposed the potential of immune-related genes as diagnostic and prognostic biomarkers, which mostly implicate the role of B cells and T cells in the pathogenesis of ITP. However, a more in-depth understanding is required of how these immune-related genes are regulated. Thus, this scoping review aims to collate evidence and further elucidate each possible epigenetics mechanism in the regulation of immunological pathways pertinent to the pathogenesis of ITP. This encompasses DNA methylation, histone modification, and non-coding RNA. A total of 41 studies were scrutinized to further clarify how each of the epigenetics mechanisms is related to the pathogenesis of ITP. Identifying epigenetics mechanisms will provide a new paradigm that may assist in the diagnosis and treatment of immune thrombocytopenia.
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Affiliation(s)
- Jian Hong Tan
- Department of Paediatric, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur 56000, Malaysia
| | - Ahmad Hazim Syakir Ahmad Azahari
- Department of Paediatric, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur 56000, Malaysia
| | - Adli Ali
- Department of Paediatric, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur 56000, Malaysia
- Research Centre, Hospital Tunku Ampuan Besar Tuanku Aishah Rohani, UKM Specialist Children’s Hospital, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur 56000, Malaysia
| | - Noor Akmal Shareela Ismail
- Research Centre, Hospital Tunku Ampuan Besar Tuanku Aishah Rohani, UKM Specialist Children’s Hospital, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur 56000, Malaysia
- Department of Biochemistry, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur 56000, Malaysia
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5
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Xu L, Song X, Zhang Y, Lin N, Wang J, Dai Q. Investigation of the mechanism of action of Shengxuexiaoban Capsules against primary immune thrombocytopenia using network pharmacology and experimental validation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 106:154413. [PMID: 36037773 DOI: 10.1016/j.phymed.2022.154413] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 08/11/2022] [Accepted: 08/21/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Shengxuexiaoban Capsules (SC) is a classical prescription in traditional Chinese medicine (TCM) and has been clinically adopted in the treatment of primary immune thrombocytopenia (ITP) in China. However, the underlying mechanisms of the actions of SC on ITP remain clear. METHODS A network pharmacology approach was adopted to investigate the underlying molecular mechanism of SC in treating ITP, and the effects of SC on the proliferation, differentiation, and apoptosis of megakaryocyte (MK) and on the ITP animal model were investigated. RESULTS Network pharmacology analysis found 128 active compounds and 268 targets of these compounds in SC, as well as 221 ITP-related targets. The topological analysis found a central network containing 82 genes, which were significantly associated with the regulation of transcription, cell proliferation, apoptosis processes, the PI3K-AKT signaling pathway, the MAPK signaling pathway, and the ERK1 and ERK2 cascades. It showed that SC increased the proliferation and differentiation of MK, but had no significant impact on MK apoptosis in vivo. The addition of SC increased the gene expression of several potential targets, including STAT3, KDR, CASP3, and TGFB1. In addition, SC administration elevated the protein expression of p-AKT and inhibit the protein expression of p-ERK, but has no impact on the protein expression of p-P38. Moreover, SC could improve haemogram parameters, coagulation indicators, and the proliferation and differentiation of MK in the ITP animal model. CONCLUSIONS The present study systematically elucidated the underlying mechanisms of SC against ITP and provided an efficient strategy to discover the pharmacological mechanism of TCM. It may strengthen the understanding of SC and facilitate more application of this formula in the treatment of ITP.
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Affiliation(s)
- Liping Xu
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Xinwei Song
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Yan Zhang
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Na Lin
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Jian Wang
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
| | - Qiaoding Dai
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China.
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6
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Zhao Y, Cui S, Wang Y, Xu R. The Extensive Regulation of MicroRNA in Immune Thrombocytopenia. Clin Appl Thromb Hemost 2022; 28:10760296221093595. [PMID: 35536600 PMCID: PMC9096216 DOI: 10.1177/10760296221093595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
MicroRNA (miRNA) is a small, single-stranded, non-coding RNA molecule that plays
a variety of key roles in different biological processes through
post-transcriptional regulation of gene expression. MiRNA has been proved to be
a variety of cellular processes involved in development, differentiation, signal
transduction, and is an important regulator of immune and autoimmune diseases.
Therefore, it may act as potent modulators of the immune system and play an
important role in the development of several autoimmune diseases. Immune
thrombocytopenia (ITP) is an autoimmune systemic disease characterized by a low
platelet count. Several studies suggest that like other autoimmune disorders,
miRNAs are deeply involved in the pathogenesis of ITP, interacting with the
function of innate and adaptive immune responses. In this review, we discuss
emerging knowledge about the function of miRNAs in ITP and describe miRNAs in
terms of their role in the immune system and autoimmune response. These findings
suggest that miRNA may be a useful therapeutic target for ITP by regulating the
immune system. In the future, we need to have a more comprehensive understanding
of miRNAs and how they regulate the immune system of patients with ITP.
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Affiliation(s)
- Yuerong Zhao
- 74738Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Siyuan Cui
- Department of Hematology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yan Wang
- Department of Hematology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.,Institute of Hematology, 74738Shandong University of Traditional Chinese Medicine, Jinan, China.,Shandong Provincial Health Commission Key Laboratory of Hematology of Integrated Traditional Chinese and Western Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ruirong Xu
- Department of Hematology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.,Institute of Hematology, 74738Shandong University of Traditional Chinese Medicine, Jinan, China.,Shandong Provincial Health Commission Key Laboratory of Hematology of Integrated Traditional Chinese and Western Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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7
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Jafarzadeh A, Marzban H, Nemati M, Jafarzadeh S, Mahjoubin-Tehran M, Hamblin MR, Mirzaei H, Mirzaei HR. Dysregulated expression of miRNAs in immune thrombocytopenia. Epigenomics 2021; 13:1315-1325. [PMID: 34498489 DOI: 10.2217/epi-2021-0092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In recent years the critical role of miRNAs has been established in many diseases, including autoimmune disorders. Immune thrombocytopenia purpura (ITP) is a predominant autoimmune disease, in which aberrant expression of miRNAs has been observed, suggesting that miRNAs are involved in its development. miRNAs could induce an imbalance in the T helper (Th)1/Th2 cell and Th17/Treg cell-related responses. Moreover, they could also cause alterations in Th9 and Th22 cell responses, and activate Tfh (T follicular helper) cell-dependent auto-reactive B cells, thus influencing megakaryogenesis. Herein, we summarize the role of immune-related miRNAs in ITP pathogenesis, and look forward to clinical applications.
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Affiliation(s)
- Abdollah Jafarzadeh
- Department of Immunology, School of Medicine, Kerman University of Medical Sciences, 76169-13555, Kerman, Iran.,Department of Immunology, School of Medicine, Rafsanjan University of Medical Sciences, 7718175911, Rafsanjan, Iran
| | - Havva Marzban
- Department of Pathology & Experimental Animals, Razi Vaccine & Serum Research Institute, Agricultural Research, Education & Extension Organization (AREEO), 31975/148 Karaj, Iran
| | - Maryam Nemati
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, 77181/75911, Rafsanjan, Iran.,Department of Hematology & Laboratory Sciences, School of Para-Medicine, Kerman University of Medical Sciences, 76169-13555, Kerman, Iran
| | - Sara Jafarzadeh
- Student Research Committee, School of Medicine, Kerman University of Medical Sciences, 76169-13555, Kerman, Iran
| | - Maryam Mahjoubin-Tehran
- Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, 13131- 99137, Mashhad, Iran
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, 2028 Doornfontein, South Africa
| | - Hamed Mirzaei
- Research Center for Biochemistry & Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, 87159-88141, Kashan, Iran.,Student Research Committee, Kashan University of Medical Sciences, 87159-88141, Kashan, Iran
| | - Hamid Reza Mirzaei
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, 1417613151, Tehran, Iran
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Thomas I, Panagoulias I, Aggeletopoulou I, Varvarigou A, Spiliotis BE, Mouzaki A. The Role of Leptin in Childhood Immune Thrombocytopenia (ITP): An Anti-Inflammatory Agent? Int J Mol Sci 2021; 22:ijms22147636. [PMID: 34299256 PMCID: PMC8306583 DOI: 10.3390/ijms22147636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/07/2021] [Accepted: 07/14/2021] [Indexed: 12/21/2022] Open
Abstract
To investigate the effect of leptin in childhood ITP, we measured plasma leptin in 39 children with acute ITP, after treatment and in remission, and in 33 healthy age/BMI-matched controls. We also cultured ITP and control peripheral blood mononuclear cells (PBMCs) with recombinant leptin to assess its direct effect on pro/anti-inflammatory cytokine gene expression. A significant increase in leptin was observed in children with active disease compared to controls. A significant inverse correlation of leptin with platelet count was also observed in children with acute ITP. Leptin remained high after treatment with IVIg, whereas steroid treatment lowered leptin below control levels. In remission, leptin was in the control range. Cytokine gene expression was significantly increased in children with acute ITP compared with controls, with highest expression for IFN-γ and IL-10. IVIg/steroid treatment significantly decreased IFN-γ and IL-10 expression. In remission, IFN-γ and IL-10 expression remained low. Addition of leptin to PBMCs isolated from patients in remission resulted in a significant increase in IL-10 gene expression compared to controls. Further experiments with purified T-cells and monocytes identified monocytes as the source of leptin-induced IL-10. We suggest that leptin acts as an active anti-inflammatory agent in childhood ITP by promoting IL-10 secretion by monocytes.
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Affiliation(s)
- Iason Thomas
- Laboratory of Immunohematology, Division of Hematology, Department of Internal Medicine, Medical School, University of Patras, GR-26500 Patras, Greece; (I.T.); (I.P.); (I.A.)
- Allergy Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester M23 9LT, UK
| | - Ioannis Panagoulias
- Laboratory of Immunohematology, Division of Hematology, Department of Internal Medicine, Medical School, University of Patras, GR-26500 Patras, Greece; (I.T.); (I.P.); (I.A.)
| | - Ioanna Aggeletopoulou
- Laboratory of Immunohematology, Division of Hematology, Department of Internal Medicine, Medical School, University of Patras, GR-26500 Patras, Greece; (I.T.); (I.P.); (I.A.)
| | - Anastasia Varvarigou
- Department of Paediatrics, Medical School, Patras University Hospital, University of Patras, GR-26500 Patras, Greece; (A.V.); (B.E.S.)
| | - Bessie E. Spiliotis
- Department of Paediatrics, Medical School, Patras University Hospital, University of Patras, GR-26500 Patras, Greece; (A.V.); (B.E.S.)
| | - Athanasia Mouzaki
- Laboratory of Immunohematology, Division of Hematology, Department of Internal Medicine, Medical School, University of Patras, GR-26500 Patras, Greece; (I.T.); (I.P.); (I.A.)
- Correspondence: ; Tel.: +30-2610-969123
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Increased let-7b-5p is associated with enhanced BAFF-R expression and B cell survival in immune thrombocytopenia. Int Immunopharmacol 2021; 93:107393. [PMID: 33529914 DOI: 10.1016/j.intimp.2021.107393] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 01/04/2021] [Accepted: 01/11/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND B cells play a key role in the pathogenesis of immune thrombocytopenia (ITP) by producing platelet autoantibodies. Accumulating evidence suggest that microRNA (miRNA) is a critical regulator in B cells. The contribution of miRNA to B cell dysfunction in ITP has not been described. The aim of this study was to examine the expression of miRNA let-7b-5p in B cells of ITP patients and investigate its possible association with B cell function in ITP. METHODS The CD19+ cells were isolated from peripheral mononuclear cells of ITP patients and healthy controls using immunomagnetic microbeads. B cell survival in vitro was evaluated by cell counting. The level of let-7b-5p was quantified by quantitative PCR. The surface expression of B cell activating factor receptor (BAFF-R) was detected by flow cytometry. The role of let-7b-5p was examined in isolated B cells by transfecting miRNA mimics or inhibitors. RESULTS The results showed that let-7b-5p in B cells was elevated, and B cell survival was enhanced in ITP patients compared with healthy controls. BAFF and B cell receptor stimulation can induce the expression of let-7b-5p in vitro. Overexpression of let-7b-5p in B cells enhanced the expression of surface BAFF-R and promoted B cell survival. Moreover, let-7b-5p enhanced the phosphorylation of NF-κB2 p100 and upregulated the expression of survival factor Bcl-xL after BAFF induction. CONCLUSION Let-7b-5p is a pro-survival miRNA in B cells and increased let-7b-5p is associated with enhanced surface BAFF-R in ITP.
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Bouter Y, Kacprowski T, Rößler F, Jensen LR, Kuss AW, Bayer TA. miRNA Alterations Elicit Pathways Involved in Memory Decline and Synaptic Function in the Hippocampus of Aged Tg4-42 Mice. Front Neurosci 2020; 14:580524. [PMID: 33013313 PMCID: PMC7511553 DOI: 10.3389/fnins.2020.580524] [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: 07/06/2020] [Accepted: 08/18/2020] [Indexed: 12/30/2022] Open
Abstract
The transcriptome of non-coding RNA (ncRNA) species is increasingly focused in Alzheimer’s disease (AD) research. NcRNAs comprise, among others, transfer RNAs, long non-coding RNAs and microRNAs (miRs), each with their own specific biological function. We used smallRNASeq to assess miR expression in the hippocampus of young (3 month old) and aged (8 month old) Tg4-42 mice, a model system for sporadic AD, as well as age-matched wildtype controls. Tg4-42 mice express N-truncated Aβ4–42, develop age-related neuron loss, reduced neurogenesis and behavioral deficits. Our results do not only confirm known miR-AD associations in Tg4-42 mice, but more importantly pinpoint 22 additional miRs associated to the disease. Twenty-five miRs were differentially expressed in both aged Tg4-42 and aged wildtype mice while eight miRs were differentially expressed only in aged wildtype mice, and 33 only in aged Tg4-42 mice. No significant alteration in the miRNome was detected in young mice, which indicates that the changes observed in aged mice are down-stream effects of Aβ-induced pathology in the Tg4-42 mouse model for AD. Targets of those miRs were predicted using miRWalk. For miRs that were differentially expressed only in the Tg4-42 model, 128 targets could be identified, whereas 18 genes were targeted by miRs only differentially expressed in wildtype mice and 85 genes were targeted by miRs differentially expressed in both mouse models. Genes targeted by differentially expressed miRs in the Tg4-42 model were enriched for negative regulation of long-term synaptic potentiation, learning or memory, regulation of trans-synaptic signaling and modulation of chemical synaptic transmission obtained. This untargeted miR sequencing approach supports previous reports on the Tg4-42 mice as a valuable model for AD. Furthermore, it revealed miRs involved in AD, which can serve as biomarkers or therapeutic targets.
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Affiliation(s)
- Yvonne Bouter
- Division of Molecular Psychiatry, Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Georg-August-University, Göttingen, Germany
| | - Tim Kacprowski
- Research Group Computational Systems Medicine, Chair of Experimental Bioinformatics, TUM School of Life Sciences Weihenstephan (WZW), Technical University of Munich (TUM), Weihenstephan, Germany
| | - Fanny Rößler
- Research Group Computational Systems Medicine, Chair of Experimental Bioinformatics, TUM School of Life Sciences Weihenstephan (WZW), Technical University of Munich (TUM), Weihenstephan, Germany
| | - Lars R Jensen
- Human Molecular Genetics Group, Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Andreas W Kuss
- Human Molecular Genetics Group, Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Thomas A Bayer
- Division of Molecular Psychiatry, Department of Psychiatry and Psychotherapy, University Medical Center Göttingen (UMG), Georg-August-University, Göttingen, Germany
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11
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Systematic Identification of lncRNA-Associated ceRNA Networks in Immune Thrombocytopenia. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2020; 2020:6193593. [PMID: 32670393 PMCID: PMC7345964 DOI: 10.1155/2020/6193593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/11/2020] [Indexed: 11/18/2022]
Abstract
Primary immune thrombocytopenia (ITP) is an autoimmune disease. However, the molecular mechanisms underlying ITP remained to be further investigated. In the present study, we analyzed a series of public datasets (including GSE43177 and GSE43178) and identified 468 upregulated mRNAs, 272 downregulated mRNAs, 134 upregulated lncRNAs, 23 downregulated lncRNAs, 29 upregulated miRNAs, and 39 downregulated miRNAs in ITP patients. Then, we constructed protein-protein interaction networks, miRNA-mRNA and lncRNA coexpression networks in ITP. Bioinformatics analysis showed these genes regulated multiple biological processes in ITP, such as mRNA nonsense-mediated decay, translation, cell-cell adhesion, proteasome-mediated ubiquitin, and mRNA splicing. We thought the present study could broaden our insights into the mechanism underlying the progression of ITP and provide a potential biomarker for the prognosis of ITP.
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De Los Reyes-García AM, Arroyo AB, Teruel-Montoya R, Vicente V, Lozano ML, González-Conejero R, Martínez C. MicroRNAs as potential regulators of platelet function and bleeding diatheses. Platelets 2018; 30:803-808. [PMID: 29787683 DOI: 10.1080/09537104.2018.1475635] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Although a growing number of studies suggest that microRNAs (miRNAs) play a relevant role in platelet biology, their implications in bleeding diatheses are starting to be investigated. Indeed, several studies have shown that alterations in the intracellular levels of highly expressed platelet miRNAs provoke a thrombotic phenotype. On the other hand, primary immune thrombocytopenia (ITP), which is considered the hallmark of acquired bleeding disorders, has been recently associated with altered levels of miRNAs in peripheral blood mononuclear cells, plasma, and platelets. In this review, we will focus on miRNAs that may affect the hemostatic and thrombotic functions of platelets, and we will discuss the different studies that have attempted to associate miRNAs with regulatory mechanisms of ITP.
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Affiliation(s)
- Ascensión M De Los Reyes-García
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain
| | - Ana B Arroyo
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain
| | - Raúl Teruel-Montoya
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain.,Red CIBERER CB15/00055 , Murcia , Spain
| | - Vicente Vicente
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain.,Red CIBERER CB15/00055 , Murcia , Spain
| | - María L Lozano
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain.,Red CIBERER CB15/00055 , Murcia , Spain
| | - Rocío González-Conejero
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain
| | - Constantino Martínez
- Department of Hematology and Medical Oncology, Morales Meseguer University Hospital, Centro Regional de Hemodonación, University of Murcia, IMIB-Arrixaca , Murcia , Spain
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Audia S, Mahévas M, Samson M, Godeau B, Bonnotte B. Pathogenesis of immune thrombocytopenia. Autoimmun Rev 2017; 16:620-632. [DOI: 10.1016/j.autrev.2017.04.012] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Accepted: 03/17/2017] [Indexed: 01/19/2023]
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Hu X, Xu Z, Liu P, Fang Z. WITHDRAWN: IL-18 and miR-130a in severe sepsis patients with thrombocytopenia. Am J Emerg Med 2016. [DOI: 10.1016/j.ajem.2016.06.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Cui YL, Wang B, Gao HM, Xing YH, Li J, Li HJ, Lin Z, Wang YQ. Interleukin-18 and miR-130a in severe sepsis patients with thrombocytopenia. Patient Prefer Adherence 2016; 10:313-9. [PMID: 27042022 PMCID: PMC4795447 DOI: 10.2147/ppa.s95588] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Thrombocytopenia is one of the most common laboratory abnormalities encountered in patients with severe sepsis. It has been reported that thrombocytopenia is linked to mortality in patients with severe sepsis. However, the mechanism of thrombocytopenia in sepsis is unknown. We hypothesized that inflammatory cytokines and microRNAs (miRNAs) are not only involved in the pathogenesis of sepsis, but also are correlated with thrombocytopenia. PATIENTS AND METHODS Eligible patients with severe sepsis were prospectively recruited and treated at our hospital between June 2012 and May 2014. The miRNA and protein expression of interleukin (IL)-18 and IL-27 were detected by real-time polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. The expression of miR-130a and miR-150 was detected by TaqMan real-time polymerase chain reaction. RESULTS Sixty eligible patients were divided into two groups: 28 severe sepsis patients with thrombocytopenia and 32 severe sepsis patients without thrombocytopenia. The results demonstrated that the miRNA expression and plasma concentration of IL-18 in severe sepsis patients with thrombocytopenia were higher than those in severe sepsis patients without thrombocytopenia (P=0.015 and P=0.034, respectively), and miR-130a expression was significantly lower in severe sepsis patients with thrombocytopenia (P<0.003). CONCLUSION Our data demonstrate that severe sepsis patients with thrombocytopenia have increased plasma and miRNA expression levels of IL-18 and decreased expression of miR-130a, suggesting that IL-18 and miR-130a might be involved in the pathophysiological process of severe sepsis with thrombocytopenia.
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Affiliation(s)
- Yao-Li Cui
- Department of Lymphoma and Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin, People’s Republic of China
- Department of Intensive Care Unit and Key Lab for Critical Care Medicine of the Ministry of Health, Emergency Medicine Research Institute, Tianjin First Center Hospital, Tianjin, People’s Republic of China
| | - Bing Wang
- Department of Intensive Care Unit and Key Lab for Critical Care Medicine of the Ministry of Health, Emergency Medicine Research Institute, Tianjin First Center Hospital, Tianjin, People’s Republic of China
| | - Hong-Mei Gao
- Department of Intensive Care Unit and Key Lab for Critical Care Medicine of the Ministry of Health, Emergency Medicine Research Institute, Tianjin First Center Hospital, Tianjin, People’s Republic of China
| | - Ying-Hong Xing
- Department of Intensive Care Unit and Key Lab for Critical Care Medicine of the Ministry of Health, Emergency Medicine Research Institute, Tianjin First Center Hospital, Tianjin, People’s Republic of China
| | - Jian Li
- Department of Intensive Care Unit and Key Lab for Critical Care Medicine of the Ministry of Health, Emergency Medicine Research Institute, Tianjin First Center Hospital, Tianjin, People’s Republic of China
| | - Hong-Jie Li
- Department of Intensive Care Unit and Key Lab for Critical Care Medicine of the Ministry of Health, Emergency Medicine Research Institute, Tianjin First Center Hospital, Tianjin, People’s Republic of China
| | - Zhu Lin
- Department of Intensive Care Unit and Key Lab for Critical Care Medicine of the Ministry of Health, Emergency Medicine Research Institute, Tianjin First Center Hospital, Tianjin, People’s Republic of China
| | - Yong-Qiang Wang
- Department of Intensive Care Unit and Key Lab for Critical Care Medicine of the Ministry of Health, Emergency Medicine Research Institute, Tianjin First Center Hospital, Tianjin, People’s Republic of China
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Abstract
Fatigue is an important aspect of health-related quality of life from the patient perspective and can have significant socio-economic consequences. It is a common feature of chronic illnesses and a significant number of both adults and children with immune thrombocytopenia (ITP) suffer from fatigue. Reliable, validated fatigue scales have been developed for use in ITP. These will facilitate future investigation of its pathogenesis and the effectiveness of intervention. Acute inflammation acts on neural and endocrine systems resulting in 'sickness behaviour', an adaptive response to infection and injury. Inflammation is also thought to cause fatigue in chronic disease and immune dysregulation in ITP appears to have a number of pro-inflammatory components. Clinicians should consider fatigue when assessing the burden of disease. Although effective ITP-directed therapy can improve fatigue, a number of fatigue-directed strategies may also need to be considered.
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Affiliation(s)
- Quentin A Hill
- Department of Haematology, St James's University Hospital, Leeds, UK
| | - Adrian C Newland
- Department of Haematology, The Royal London Hospital, London, UK
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