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Wu Y, Jiang H, Hu Y, Dai H, Zhao Q, Zheng Y, Liu W, Rui H, Liu B. B cell dysregulation and depletion therapy in primary membranous nephropathy: Prospects and potential challenges. Int Immunopharmacol 2024; 140:112769. [PMID: 39098228 DOI: 10.1016/j.intimp.2024.112769] [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: 04/29/2024] [Revised: 07/14/2024] [Accepted: 07/22/2024] [Indexed: 08/06/2024]
Abstract
B cells are crucial to the humoral immune response, originating in the bone marrow and maturing in the spleen and lymph nodes. They primarily function to protect against a wide range of infections through the secretion of antibodies. The role of B cells in primary membranous nephropathy (PMN) has gained significant attention, especially following the discovery of various autoantibodies that target podocyte antigens and the observed positive outcomes from B cell depletion therapy. Increasing evidence points to the presence of abnormal B cell subsets and functions in MN. B cells have varied roles during the different stages of disease onset, progression, and relapse. Initially, B cells facilitate self-antigen presentation, activate effector T cells, and initiate cellular immunity. Subsequently, the disruption of both central and peripheral immune tolerance results in the emergence of autoreactive B cells, with strong germinal center responses as a major source of MN autoantibodies. Additionally, critical B cell subsets, including Bregs, memory B cells, and plasma cells, play roles in the immune dysregulation observed in MN, assisting in predicting disease recurrence and guiding management strategies for MN. This review offers a detailed overview of research advancements on B cells and elucidates their pathological roles in MN.
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Affiliation(s)
- Yadi Wu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China; Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
| | - Hanxue Jiang
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - Yuehong Hu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China; Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
| | - Haoran Dai
- Shunyi Branch, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100310, China
| | - Qihan Zhao
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China; Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China
| | - Yang Zheng
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - Wenbin Liu
- Beijing University of Chinese Medicine, Beijing 100029, China
| | - Hongliang Rui
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China; Beijing Institute of Chinese Medicine, Beijing 100010, China.
| | - Baoli Liu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China; Laboratory for Clinical Medicine, Capital Medical University, Beijing 100069, China.
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Issa W, Njeim R, Carrazco A, Burke GW, Mitrofanova A. Role of the Innate Immune Response in Glomerular Disease Pathogenesis: Focus on Podocytes. Cells 2024; 13:1157. [PMID: 38995008 PMCID: PMC11240682 DOI: 10.3390/cells13131157] [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: 06/01/2024] [Revised: 07/03/2024] [Accepted: 07/03/2024] [Indexed: 07/13/2024] Open
Abstract
Accumulating evidence indicates that inflammatory and immunologic processes play a significant role in the development and progression of glomerular diseases. Podocytes, the terminally differentiated epithelial cells, are crucial for maintaining the integrity of the glomerular filtration barrier. Once injured, podocytes cannot regenerate, leading to progressive proteinuric glomerular diseases. However, emerging evidence suggests that podocytes not only maintain the glomerular filtration barrier and are important targets of immune responses but also exhibit many features of immune-like cells, where they are involved in the modulation of the activity of innate and adaptive immunity. This dual role of podocytes may lead to the discovery and development of new therapeutic targets for treating glomerular diseases. This review aims to provide an overview of the innate immunity mechanisms involved in podocyte injury and the progression of proteinuric glomerular diseases.
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Affiliation(s)
- Wadih Issa
- Department of Internal Medicine, Saint Joseph University, Beirut 1107 2180, Lebanon
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Peggy and Harold Katz Family Drug Discovery Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Rachel Njeim
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Peggy and Harold Katz Family Drug Discovery Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Arianna Carrazco
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Peggy and Harold Katz Family Drug Discovery Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - George W Burke
- Division of Kidney-Pancreas Transplantation, Department of Surgery, Miami Transplant Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Alla Mitrofanova
- Katz Family Division of Nephrology and Hypertension, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Peggy and Harold Katz Family Drug Discovery Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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Gao HH, Li W, Shou XY, Mao JH. Correlation between Toll-like Receptor Gene Polymorphisms and Idiopathic Nephrotic Syndrome in Chinese Children. Curr Med Sci 2023:10.1007/s11596-023-2728-3. [PMID: 37115397 DOI: 10.1007/s11596-023-2728-3] [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: 05/17/2022] [Accepted: 02/21/2023] [Indexed: 04/29/2023]
Abstract
OBJECTIVE Idiopathic nephrotic syndrome (INS) is the most common glomerular disease in children. Toll-like receptors (TLRs) have been reported to be associated with response to steroid treatment in children with INS. Nevertheless, the correlation between TLR genes and the progression of INS has not yet been clarified. The present study aimed to investigate the association of single-nucleotide polymorphisms (SNPs) in TLR2, TLR4, and TLR9 with susceptibility to INS as well as the clinical phenotyping of steroid responsiveness in Chinese children with INS. METHODS A total of 183 pediatric inpatients with INS were included and given standard steroid therapy. Based on their clinical response to steroids, the patients were classified into three groups: steroid-sensitive nephrotic syndrome (SSNS), steroid-dependent nephrotic syndrome (SDNS), and steroid-resistant nephrotic syndrome (SRNS). A total of 100 healthy children were employed as controls. The blood genome DNA was extracted from each participant. Six SNPs (rs11536889, rs1927914, rs7869402, rs11536891, rs352140, and rs3804099) in TLR2, TLR4, and TLR9 were selected and detected by multiplex polymerase chain reaction with next-generation sequencing to assess TLR gene polymorphisms. RESULTS Among the 183 patients with INS, 89 (48.6%) had SSNS, 73 (39.9%) had SDNS, and 21 (11.5%) had SRNS. No significant difference was found in the genotype distribution between healthy children and patients with INS. However, the genotype and allele frequencies of TLR4 rs7869402 were significantly different between SRNS and SSNS. Compared with patients with the C allele and CC genotype, patients with the T allele and CT genotype had an increased risk of SRNS. CONCLUSION TLR4 rs7869402 affected the steroid response in Chinese children with INS. It might be a predictor for the early detection of SRNS in this population.
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Affiliation(s)
- Hui-Hui Gao
- Department of Pediatric and Adolescent, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, China
| | - Wei Li
- Department of Clinical Laboratory, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, China
| | - Xin-Yi Shou
- Department of Clinical Laboratory, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, China
| | - Jian-Hua Mao
- Department of Nephrology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, China.
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Mertowski S, Lipa P, Morawska I, Niedźwiedzka-Rystwej P, Bębnowska D, Hrynkiewicz R, Grywalska E, Roliński J, Załuska W. Toll-Like Receptor as a Potential Biomarker in Renal Diseases. Int J Mol Sci 2020; 21:ijms21186712. [PMID: 32933213 PMCID: PMC7554805 DOI: 10.3390/ijms21186712] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/09/2020] [Accepted: 09/11/2020] [Indexed: 02/08/2023] Open
Abstract
One of the major challenges faced by modern nephrology is the identification of biomarkers associated with histopathological patterns or defined pathogenic mechanisms that may assist in the non-invasive diagnosis of kidney disease, particularly glomerulopathy. The identification of such molecules may allow prognostic subgroups to be established based on the type of disease, thereby predicting response to treatment or disease relapse. Advances in understanding the pathogenesis of diseases, such as membranous nephropathy, minimal change disease, focal segmental glomerulosclerosis, IgA (immunoglobulin A) nephropathy, and diabetic nephropathy, along with the progressive development and standardization of plasma and urine proteomics techniques, have facilitated the identification of an increasing number of molecules that may be useful for these purposes. The growing number of studies on the role of TLR (toll-like receptor) receptors in the pathogenesis of kidney disease forces contemporary researchers to reflect on these molecules, which may soon join the group of renal biomarkers and become a helpful tool in the diagnosis of glomerulopathy. In this article, we conducted a thorough review of the literature on the role of TLRs in the pathogenesis of glomerulopathy. The role of TLR receptors as potential marker molecules for the development of neoplastic diseases is emphasized more and more often, as prognostic factors in diseases on several epidemiological backgrounds.
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Affiliation(s)
- Sebastian Mertowski
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, 20-093 Lublin, Poland; (I.M.); (J.R.)
- Correspondence: (S.M.); (P.N.-R.); (E.G.)
| | - Paulina Lipa
- Department of Genetics and Microbiology, Institute of Microbiology and Biotechnology, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19 St., 20-033 Lublin, Poland;
| | - Izabela Morawska
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, 20-093 Lublin, Poland; (I.M.); (J.R.)
| | - Paulina Niedźwiedzka-Rystwej
- Institute of Biology, University of Szczecin, Felczaka 3c, 71-412 Szczecin, Poland; (D.B.); (R.H.)
- Correspondence: (S.M.); (P.N.-R.); (E.G.)
| | - Dominika Bębnowska
- Institute of Biology, University of Szczecin, Felczaka 3c, 71-412 Szczecin, Poland; (D.B.); (R.H.)
| | - Rafał Hrynkiewicz
- Institute of Biology, University of Szczecin, Felczaka 3c, 71-412 Szczecin, Poland; (D.B.); (R.H.)
| | - Ewelina Grywalska
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, 20-093 Lublin, Poland; (I.M.); (J.R.)
- Correspondence: (S.M.); (P.N.-R.); (E.G.)
| | - Jacek Roliński
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, 20-093 Lublin, Poland; (I.M.); (J.R.)
| | - Wojciech Załuska
- Department of Nephrology, Medical University of Lublin, 20-954 Lublin, Poland;
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Clinical markers combined with HMGB1 polymorphisms to predict efficacy of conventional DMARDs in rheumatoid arthritis patients. Clin Immunol 2020; 221:108592. [PMID: 32920213 DOI: 10.1016/j.clim.2020.108592] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/05/2020] [Accepted: 09/08/2020] [Indexed: 01/19/2023]
Abstract
The efficacy of conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) for rheumatoid arthritis (RA) patients was limited. However, there were no predictive markers for poor csDMARDs outcome. Clinical information of RA patients was collected and the high-mobility group box 1 (HMGB1) polymorphisms (rs4145277, rs2249825, rs1412125 and rs1045411) were examined. Among the 252 patients, 31.0% had no response of csDMARDs. Anti-citrullinated protein antibody (ACPA)-positive, C-reactive protein (CRP) and Disease Activity Score (DAS) 28- erythrocyte sedimentation rate (ESR) were the associated factors, which (DAC:DAS 28 > 4.7 and ACPA-positive and CRP > 7.1 mg/L) was used to predict poor csDMARDs outcome, the sensitivity and specificity was 87.2% and 60.9%, respectively. Among those DAC patients, the refractory RA rate in the rs2249825 GG genotype patients was 83.3%, the specificity was 98.5%. The clinical markers (DAC) and rs2249825 GG genotype can be used to predict poor csDMARDs outcome.
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Xu Z, Chen L, Xiang H, Zhang C, Xiong J. Advances in Pathogenesis of Idiopathic Membranous Nephropathy. KIDNEY DISEASES (BASEL, SWITZERLAND) 2020; 6:330-345. [PMID: 33490113 PMCID: PMC7745661 DOI: 10.1159/000507704] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 04/02/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Membranous nephropathy (MN), a major cause of nephrotic syndrome, has attracted people's attention in recent years for its growing prevalence. It is the second or third leading cause of ESRD in patients with primary glomerulonephritis and is the leading glomerulopathy that recurs after kidney transplantation. SUMMARY MN can be classified as idiopathic membranous nephropathy (IMN) and secondary MN. The discovery of the M-type phospholipase A2 receptor (PLA2R) and thrombospondin type-1 domain-containing 7A (THSD7A) provides the new diagnostic methods and treatment strategies for IMN on the molecular level. The study on single nucleotide polymorphism of IMN genes, such as the single M-type phospholipase A2 receptor 1 (PLA2R1) gene and human leukocyte antigen (HLA) gene, explains the pathogenesis of the disease from the perspective of genetics and conforms to the trend of the era of precision medicine. KEY MESSAGES This review focuses on advances in the pathogenesis of IMN, including molecular and genetic pathogenesis, as well as discussing the diagnostic and treatment guiding value brought by these new discoveries.
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Affiliation(s)
- Zhifeng Xu
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lu Chen
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huiling Xiang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chun Zhang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Xiong
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Nazareth TA, Kariburyo F, Kirkemo A, Xie L, Pavlova-Wolf A, Bartels-Peculis L, Vaidya N, Sim JJ. Patients with Idiopathic Membranous Nephropathy: A Real-World Clinical and Economic Analysis of U.S. Claims Data. J Manag Care Spec Pharm 2019; 25:1011-1020. [PMID: 31283419 PMCID: PMC10397828 DOI: 10.18553/jmcp.2019.18456] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Membranous nephropathy (MN) is a common cause of nephrotic syndrome in nondiabetic adults. Approximately one third of patients with MN progress to end-stage renal disease (ESRD), while others may be successfully treated to remission. Patients with MN represent a high-risk population for whom management strategies can alter and improve outcomes. Currently, there is little real-world evidence regarding the burden of MN on health plans. OBJECTIVES To (a) characterize clinical and economic outcomes during a 1-year time frame among a prevalent cohort of patients with MN and (b) compare the 5% of patients incurring the highest cost with the remaining 95%. METHODS A retrospective analysis of commercially insured patients was conducted using MarketScan administrative health care claims data from January 1, 2012, to December 31, 2015. Patients were aged ≥ 18 years, enrolled In a fee-for-service plan, and had ≥ 2 medical claims for an MN diagnosis (ICD-9-CM codes 581.1, 582.1, and 583.1). Diagnoses indicating clear secondary causes were excluded wherever possible. Demographics were determined as of the first diagnosis date; clinical characteristics (e.g., MN-specific therapy, complications, and procedures), health care resource utilization (HCRU; inpatient, outpatient including other outpatient and emergency department [ED], and prescriptions), and costs were evaluated for 1 year following MN diagnosis. Total costs and cost distribution (2017 U.S. dollars) were examined using plan-paid and patient-paid amounts. The 95th percentile was used to categorize and compare the subcohorts: high-cost cohort (HCC) patients (top 5%) and non-high-cost cohort (NHCC) patients (the remaining 95%). Descriptive analyses, chi-square tests, and Wilcoxon rank-sum tests were conducted. RESULTS 2,689 patients were identified (60.0% male, mean age = 46.4 years). Severity and advanced disease were observed In a higher proportion of HCC patients (n = 134) versus NHC patients (n = 2,555) via adverse health outcomes, procedures, and immunosuppressant use. HCC patients used significantly more resources on average than NHCC patients (additional use): 1.7 inpatient, 1.2 ED, and 4.8 outpatient office visits; 15 prescriptions; and 64.8 other outpatient visits (i.e., outpatient, hospital, and ESRD facilities). Total MN-related cost and mean (SD) cost per patient were $123.2 million and $45,814 ($101,353); HCC patients accounted for 43.7% of total costs for a mean cost per patient of $401,608 versus NHCC patients at 56.3% and mean cost per patient of $27,154. The greatest costs for both groups were related to outpatient visits (HCC = 46.7%; NHCC = 52.8%), inpatient visits (HCC = 27.7%; NHCC = 28.6%), and prescriptions (HCC = 25.7%; NHCC = 18.6%). CONCLUSIONS Patients with MN are significantly burdened with high disease severity and adverse health outcomes, resulting In substantial HCRU and costs. Health plan cost drivers for MN (HCC and NHCC patients) occurred primarily In the outpatient setting, followed by the inpatient setting and prescriptions. Modifiable aspects preceding progression to advanced renal disease and worse outcomes should be explored to Identify effective interventions and improve resource allocation earlier In the disease pathway, before ESRD. DISCLOSURES This study was funded by Mallinckrodt Pharmaceuticals. Kirkemo, Pavlova-Wolf, and Bartels-Peculis are employees and stockholders of Mallinckrodt Pharmaceuticals. Nazareth was an employee of Mallinckrodt Pharmaceuticals at the time of this study. Kariburyo, Xie, and Vaidya are employees of STATinMED Research, a paid consultant to Mallinckrodt Pharmaceuticals. Sim received an investigator-initiated research grant from Mallinkcrodt Pharmaceuticals. A portion of the study results were previously presented at the American Society of Nephrology (ASN) Kidney Week 2017; November 2, 2017; New Orleans, LA.
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Affiliation(s)
| | | | - Aaron Kirkemo
- Mallinckrodt Pharmaceuticals, Bedminster, New Jersey
| | - Lin Xie
- STATinMED Research, Ann Arbor, Michigan
| | | | | | | | - John J. Sim
- Division of Nephrology and Hypertension, Kaiser Permanente, Los Angeles Medical Center, Los Angeles, California
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Jin LW, Pan M, Ye HY, Zheng Y, Chen Y, Huang WW, Xu XY, Zheng SB. Down-regulation of the long non-coding RNA XIST ameliorates podocyte apoptosis in membranous nephropathy via the miR-217-TLR4 pathway. Exp Physiol 2018; 104:220-230. [PMID: 30414341 DOI: 10.1113/ep087190] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 11/08/2018] [Indexed: 12/18/2022]
Abstract
NEW FINDINGS What is the central question of this study? What is the role of the long non-coding RNA X-inactive specific transcript (XIST), which is up-regulated in injured podocytes and membranous nephropathy, in the pathogenesis of membranous nephropathy? What is the main finding and its importance? XIST was up-regulated in kidney tissue with membranous nephropathy and in injured podocytes. Down-regulation of XIST inhibited podocyte apoptosis. XIST negatively regulated miR-217, and miR-217 modulated Toll-like receptor 4. Inhibition of XIST suppressed podocyte apoptosis induced by angiotensin II via miR-217. ABSTRACT Membranous nephropathy is often characterized by glomerular podocyte injury. Up-regulation of the long non-coding RNA (lncRNA) X-inactive specific transcript (XIST) has been verified in membranous nephropathy and in injured podocytes. Here the role of XIST in podocyte injury and membranous nephropathy was explored. Quantitative real-time PCR and western blot were performed to detect the expression of XIST and miR-217, and Toll-like receptor 4 (TLR4) protein, respectively. Podocyte apoptosis was evaluated with flow cytometry. Interaction between XIST and miR-217 was analysed by RNA immunoprecipitation and RNA pull-down assay. A dual luciferase reporter assay was used to examine the interplay between miR-217 and TLR4. Up-regulation of the lncRNA XIST and angiotensin II (Ang II) and kidney and podocyte injury were indicated in kidney tissue of patients with membranous nephropathy. Increase of XIST and apoptosis were induced by Ang II in podocytes. Down-regulation of XIST reversed podocyte apoptosis induced by Ang II. MiR-217 was negatively regulated by XIST. MiR-217 controlled TLR4 by targeting its 3'-untranslated region. XIST modulated TLR4 through miR-217 and inhibition of XIST reduced podocyte apoptosis induced by Ang II via regulating miR-217. Down-regulation of XIST ameliorates podocyte apoptosis via the miR-217-TLR4 pathway, which may improve membranous nephropathy.
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Affiliation(s)
- Ling-Wei Jin
- Department of Nephrology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Min Pan
- Department of Nephrology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Han-Yang Ye
- Department of Nephrology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Yu Zheng
- Department of Nephrology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Yan Chen
- Department of Nephrology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Wen-Wen Huang
- Department of Nephrology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Xiao-Yan Xu
- Department of Nephrology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Shu-Bei Zheng
- Department of Nephrology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
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Bao L, Li J, Hu S, Wu X. Association between the HLA-DQA1 rs2187668 polymorphism and risk of idiopathic membranous nephropathy: A PRISMA-compliant meta-analysis. Medicine (Baltimore) 2018; 97:e13031. [PMID: 30383665 PMCID: PMC6221752 DOI: 10.1097/md.0000000000013031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE Numerous studies have evaluated the association between the rs2187668 polymorphism in the human leucocyte antigen (HLA) complex class II HLA-DQ a-chain 1 (HLA-DQA1) gene and idiopathic membranous nephropathy (iMN) risk, which provided new insight into potential new targets for the treatment of iMN. However, this relationship remains inconclusive. Our aim was to evaluate the relationship between this polymorphism and iMN susceptibility by performing a meta-analysis. METHODS Articles were identified in the PubMed, Google Scholar, EMBASE, Cochran Library databases. Meta-analyses were performed for rs2187668 allele frequency, genotypes, and the association with iMN susceptibility. Subgroup analyses, publication bias and sensitivity analyses were also conducted. RESULTS 11 eligible studies (3209 cases and 7358 controls) from 7 articles were included. Statistical analyses were carried out using Stata 12.0, combining data from all the relevant studies. The pooled odds ratios (ORs) regarding the association between the HLA-DQA1 rs2187668 polymorphism and iMN risk were statistically significant [A vs G: OR = 3.34, 95% confidence interval (CI) = 2.70-4.13; AA vs GA + GG: OR = 8.69, 95% CI = 6.64-11.36; GG vs GA + AA: OR = 0.25, 95% CI = 0.19-0.33;AA vs GG: OR = 12.61, 95% CI = 8.02-19.81; GA vs GG: OR = 3.45, 95% CI = 2.79-4.25]. CONCLUSIONS Our pooled analysis showed a significant association between rs2187668-(A) allele and iMN susceptibility, and the intervention of this mutation might bring new therapeutic strategy for iMN. However, further studies should be performed to confirm this finding.
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Affiliation(s)
- Liping Bao
- Department of Nephrology, Puer People's Hospital,Yunnan
| | - Jushuang Li
- Department of Nephrology, Wuhan Third People's Hospital
| | - Shuang Hu
- Department of Nephrology, Wuhan University Zhongnan Hospital
| | - Xiaoyan Wu
- Department of Nephrology, Wuhan University Zhongnan Hospital, P.R.China
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Wang LH, Wu MH, Chen PC, Su CM, Xu G, Huang CC, Tsai CH, Huang YL, Tang CH. Prognostic significance of high-mobility group box protein 1 genetic polymorphisms in rheumatoid arthritis disease outcome. Int J Med Sci 2017; 14:1382-1388. [PMID: 29200952 PMCID: PMC5707755 DOI: 10.7150/ijms.21773] [Citation(s) in RCA: 14] [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] [Received: 07/05/2017] [Accepted: 10/11/2017] [Indexed: 12/23/2022] Open
Abstract
Rheumatoid arthritis (RA) is a systemic inflammatory disease that causes chronic inflammation of the joints. Analysis of genetic variants offers promise for guiding treatment and improving outcomes in RA. High-mobility group box protein 1 (HMGB1) is a ubiquitous nuclear protein found in all mammal eukaryotic cells that participates in several biological functions including immune response, cell survival and apoptosis. We investigated the effects of HMGB1 gene polymorphisms on the risk of RA disease progression in a cohort of Chinese Han individuals. Four single nucleotide polymorphisms (SNPs) from the HMGB1 gene were selected and genotyped in 232 patients with RA and 353 healthy controls. We found that having one C allele in rs1360485 and one G allele in rs2249825 polymorphisms lowered the risk of RA in females. Moreover, among healthy controls, those who bore the C/G/T haplotype at SNPs rs1360485, rs2249825 and rs1412125 were at reduced risk of developing RA by 0.13-fold (p <0.05). This is the first report to examine the risk factors associated with HMGB1 SNPs in the development of RA disease in the Chinese Han population.
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Affiliation(s)
- Li-Hong Wang
- Department of Orthopedics, Affiliated Dongyang Hospital of Wenzhou Medical University, Dongyang, Zhejiang, China
| | - Min-Huan Wu
- Physical Education Office, Tunghai University, Taichung, Taiwan.,Sports Recreation and Health Management Continuing Studies, Tunghai University, Taichung, Taiwan
| | - Po-Chun Chen
- Graduate Institute of Biomedical Science, China Medical University, Taichung, Taiwan
| | - Chen-Ming Su
- Department of Biomedical Sciences Laboratory, Affiliated Dongyang Hospital of Wenzhou Medical University, Dongyang, Zhejiang, China
| | - Guohong Xu
- Department of Orthopedics, Affiliated Dongyang Hospital of Wenzhou Medical University, Dongyang, Zhejiang, China
| | - Chien-Chung Huang
- Division of Immunology and Rheumatology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan.,Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
| | - Chun-Hao Tsai
- School of Medicine, China Medical University, Taichung, Taiwan.,Department of Orthopedic Surgery, China Medical University Hospital, Taichung, Taiwan
| | - Yuan-Li Huang
- Department of Biotechnology, College of Health Science, Asia University, Taichung, Taiwan
| | - Chih-Hsin Tang
- Graduate Institute of Biomedical Science, China Medical University, Taichung, Taiwan.,School of Medicine, China Medical University, Taichung, Taiwan.,Department of Biotechnology, College of Health Science, Asia University, Taichung, Taiwan
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Liver Governs Tendon: A Theory from Traditional Chinese Medicine-Evidence from a Population-Based Matched Cohort Study in Taiwan for the Association of Chronic Liver Disease and Common Diseases in the Chiropractic Office. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:7210705. [PMID: 27437024 PMCID: PMC4942639 DOI: 10.1155/2016/7210705] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 04/26/2016] [Accepted: 06/02/2016] [Indexed: 12/20/2022]
Abstract
In traditional Chinese medicine (TCM) theory, the liver governs the tendons. This retrospective cohort study investigated the relationship between chronic liver disease and common orthopedic conditions by utilizing the National Health Insurance Research Database of Taiwan. The populations included within this study were chronic liver disease patients (International Classification of Diseases/ICD-9 code: 571) and a comparison group composed of patients with nonchronic liver disease. The medical event that was evaluated was internal derangement of joints (ICD-9 codes: 717-718). In comparison with the control group, patients with chronic liver disease were 1.29 times more likely to develop internal derangement of joints when major trauma had also occurred. We did not find the association of viral hepatitis with internal derangement of joints. Patients with chronic liver disease as well as anemia were 3.01 times more likely to develop joint derangements. Our study shows that patients with anemia in addition to chronic liver disease are more prone to develop joint derangements. This is the first documented research study that endorses “the liver governs the tendons which gives the body the ability to move” theory of TCM. The incidence rate of internal derangement of knee joints was higher in patients with chronic liver disease.
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Residue-based design of small molecule inhibitor for H1N1, H5N1 and H7N1 mutants. J Mol Model 2015; 22:4. [PMID: 26645808 DOI: 10.1007/s00894-015-2875-y] [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: 09/25/2015] [Accepted: 11/22/2015] [Indexed: 10/22/2022]
Abstract
Point mutations H274Y and N294S can lead to resistance of influenza virus strains to some drug molecules. Recently, a large number of experiments has focused on the many frameworks and catalytic residues thought to prevent the efficacy of anti-flu drugs. In the past, most research has considered the role of drugs in rigid proteins rather than in flexible proteins. In this study, we used molecular dynamics simulation (MD) combined with structure- and ligand-based drug design (SBDD and LBDD) methods to study dynamic interaction and protein dynamics correlation statistics between compounds and both the framework and catalytic residues in influenza virus N1 strains. Drug candidates were screened using the IC50 of the docking result predicted by support vector machine, multiple linear regression, and genetic function approximation (P < 0.001). As shown by MD, saussureamine C and diiodotyrosine have a protein dynamics correlation similar to that of sialic acid, and both can participate in hydrogen bond formation with loop, framework, and catalytic residues. Our in silico findings suggest that saussureamine C can inhibit H274Y and N294S mutants, and that diiodotyrosine can also inhibit N294S mutants. Therefore, the drugs saussureamine C and diiodotyrosine have the potential to produce inhibitory effects on wild-type influenza virus and some N1 mutants.
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