1
|
Su H, Zou R, Su J, Chen X, Yang H, An N, Yang C, Tang J, Liu H, Yao C. Sterile inflammation of peritoneal membrane caused by peritoneal dialysis: focus on the communication between immune cells and peritoneal stroma. Front Immunol 2024; 15:1387292. [PMID: 38779674 PMCID: PMC11109381 DOI: 10.3389/fimmu.2024.1387292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 04/16/2024] [Indexed: 05/25/2024] Open
Abstract
Peritoneal dialysis is a widely used method for treating kidney failure. However, over time, the peritoneal structure and function can deteriorate, leading to the failure of this therapy. This deterioration is primarily caused by infectious and sterile inflammation. Sterile inflammation, which is inflammation without infection, is particularly concerning as it can be subtle and often goes unnoticed. The onset of sterile inflammation involves various pathological processes. Peritoneal cells detect signals that promote inflammation and release substances that attract immune cells from the bloodstream. These immune cells contribute to the initiation and escalation of the inflammatory response. The existing literature extensively covers the involvement of different cell types in the sterile inflammation, including mesothelial cells, fibroblasts, endothelial cells, and adipocytes, as well as immune cells such as macrophages, lymphocytes, and mast cells. These cells work together to promote the occurrence and progression of sterile inflammation, although the exact mechanisms are not fully understood. This review aims to provide a comprehensive overview of the signals from both stromal cells and components of immune system, as well as the reciprocal interactions between cellular components, during the initiation of sterile inflammation. By understanding the cellular and molecular mechanisms underlying sterile inflammation, we may potentially develop therapeutic interventions to counteract peritoneal membrane damage and restore normal function.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | - Huafeng Liu
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Cuiwei Yao
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| |
Collapse
|
2
|
Lacquaniti A, Campo S, Falliti G, Caruso D, Gargano R, Giunta E, Monardo P. Free Light Chains, High Mobility Group Box 1, and Mortality in Hemodialysis Patients. J Clin Med 2022; 11:jcm11236904. [PMID: 36498479 PMCID: PMC9739300 DOI: 10.3390/jcm11236904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/15/2022] [Accepted: 11/19/2022] [Indexed: 11/24/2022] Open
Abstract
Background: Uremic toxins are associated with immune dysfunction and inflammation. The inadequate removal by hemodialysis (HD) of serum free light chains (FLCs) determines their accumulation. This study evaluated FLCs in HD patients, analyzing their relations with other biomarkers, such as serum high mobility group box 1 (HMGB1). Methods: FLC and HMGB1 were evaluated in a cohort of 119 HD patients. κFLC and λFLC were summated to give a combined (c) FLC concentration. Patients were followed prospectively until the end of the observation period of four years, or until the endpoint: the patient’s death. Results: cFLC values in HD patients were 244.4 (197.9−273.5) mg/L. We detected a significant reduction in CD8+ cells and a decreased CD4+/CD8+ ratio. HMGB1 levels were 94.5 (55−302) pg/mL. After multivariate analysis, cFLCs correlated with β2-microglobulin and the CD4+/CD8+ ratio. Subjects with cFLC values above 263 mg/L and with sHMGB1 values < 80 pg/mL experienced a significantly faster evolution to the endpoint (mean follow-up time to progression of 27.5 and 28.5 months, respectively; p < 0.001). After an adjusted multivariate Cox analysis, cFLCs were associated with 11% increased risk of death, whereas low sHMGB1 increased this risk by 5%. Conclusions: cFLCs and HMGB1 reflect the inflammation and immune dysfunction in HD patients representing two strong and independent risk markers of mortality.
Collapse
Affiliation(s)
| | - Susanna Campo
- Nephrology and Dialysis Unit, Papardo Hospital, 98158 Messina, Italy
| | | | - Daniele Caruso
- Clinical Pathology Unit, Papardo Hospital, 98158 Messina, Italy
| | - Romana Gargano
- Department of Economics, University of Messina, 98122 Messina, Italy
| | - Elena Giunta
- Microbiology and Virology Unit, Papardo Hospital, 98158 Messina, Italy
| | - Paolo Monardo
- Nephrology and Dialysis Unit, Papardo Hospital, 98158 Messina, Italy
- Correspondence: ; Tel.: +39-090-3996062; Fax: +39-090-3992337
| |
Collapse
|
3
|
Xie X, Gan H, Tian J, Li F, Chen J, Wang J, Liao J, Li S. Iguratimod inhibits skin fibrosis by regulating TGF-β1/Smad signalling pathway in systemic sclerosis. Eur J Clin Invest 2022; 52:e13791. [PMID: 35441708 DOI: 10.1111/eci.13791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 03/29/2022] [Accepted: 04/07/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Iguratimod (T-614), exerting a powerful anti-inflammatory ability, has therapeutic efficacy in multiple autoimmune diseases. However, the effect of T-614 on systemic sclerosis (SSc) is unclear. Here, we investigate the effect and molecular mechanism of T-614 in experimental SSc models. METHODS In vitro, cultured dermal fibroblasts from four SSc patients were subjected to different doses of T-614 in the presence or absence of TGF-β1 stimulation. Cell proliferation, apoptosis and migration were determined by CCK-8, flow cytometry and transwell assay, respectively. Fibrosis markers and smad signalling pathway-related proteins were detected by immunoblotting and immunofluorescence. In vivo, a bleomycin-induced SSc mouse model was used to evaluate the effect of T-614 on skin fibrosis. Pathological changes in skin tissues were evaluated by HE, Masson staining and immunohistochemistry. RESULTS In the study, we found T-614 inhibited TGF-β1-induced cell proliferation, migration and promoted apoptosis in a dose-dependent manner (all p < 0.01). T-614 partially reversed TGF-β1-induced upregulation of fibrosis markers and phosphorylation of smad2 and smad3 and blocked p-Smad3 nuclear translocation (all p < 0.05), suggesting T-614 may inhibit dermal fibroblasts activation by regulating TGF-β1/smad pathway. In vivo experiments, T-614 alleviated skin thickness in bleomycin-induced SSc mice (all p < 0.05). The expression of fibrosis markers and the infiltration of macrophages in skin tissue were significantly decreased after T-614 treatment (all p < 0.05). CONCLUSION Our preliminary data indicated T-614 inhibited dermal fibroblasts activation and skin fibrosis at least partly by regulating TGF-β1/smad pathway in experimental SSc models and may be a promising therapeutic agent for SSc.
Collapse
Affiliation(s)
- Xi Xie
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, China.,Clinical Immunology Research Center, Central South University, Changsha, China
| | - Haina Gan
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, China.,Clinical Immunology Research Center, Central South University, Changsha, China.,Department of Rheumatology and Immunology, The First People's Hospital of Changde City, Changde, China
| | - Jing Tian
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, China.,Clinical Immunology Research Center, Central South University, Changsha, China
| | - Fen Li
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, China.,Clinical Immunology Research Center, Central South University, Changsha, China
| | - Jinwei Chen
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, China.,Clinical Immunology Research Center, Central South University, Changsha, China
| | - Jia Wang
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, China.,Clinical Immunology Research Center, Central South University, Changsha, China
| | - Jiafeng Liao
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, China.,Clinical Immunology Research Center, Central South University, Changsha, China
| | - Shu Li
- Department of Rheumatology and Immunology, The Second Xiangya Hospital, Central South University, Changsha, China.,Clinical Immunology Research Center, Central South University, Changsha, China
| |
Collapse
|
4
|
Chen L, Chen G, Kong X. Serum level of high mobility group box protein-1 and prognosis of patients with end-stage renal disease on hemodialysis and peritoneal dialysis. Medicine (Baltimore) 2021; 100:e24275. [PMID: 33592871 PMCID: PMC7870203 DOI: 10.1097/md.0000000000024275] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 12/10/2020] [Indexed: 01/05/2023] Open
Abstract
To investigate serum level of high mobility group box protein-1 (HMGB1) and prognosis of patients with end-stage renal disease (ESRD) on hemodialysis (HD) and peritoneal dialysis (PD).This prospective cohort observational study included a total of 253 ESRD patients who came to our hospital for HD or PD from February 2013 to February 2015. Enzyme linked immunosorbent assay (ELISA) method was used to detect the serum level of HMGB1, interleukin (IL-6), IL-8, and tumor necrosis factor-alpha (TNF-α). The kidney disease quality of life short form (KDQOL-SF) and kidney disease targeted area (KDTA) was applied for evaluating the quality of life. Kaplan-Meier (K-M) curve was performed for survival time.Serum level of HMGB1 in patients on HD was higher than PD. HMGB1 levels were gradually decreased with the treatment of HD or PD. Furthermore, HMGB1 was positively correlated with IL-6 and TNF-α. Moreover, patients with higher HMGB1 had more complications than patients with lower HMGB1, but there was no difference for the survival rate. In addition, the quality of life was associated with different dialysis methods.The serum level of HMGB1 and prognosis of ESRD patients was associated with different dialysis methods.
Collapse
Affiliation(s)
| | - Gaoping Chen
- Department of Surgical Oncology, The First People's Hospital of Fuyang Hangzhou, Hangzhou City, Zhejiang, China
| | | |
Collapse
|
5
|
Acetylation of HMGB1 by JNK1 Signaling Promotes LPS-Induced Peritoneal Mesothelial Cells Apoptosis. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2649585. [PMID: 30539006 PMCID: PMC6260401 DOI: 10.1155/2018/2649585] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 10/10/2018] [Accepted: 10/30/2018] [Indexed: 01/16/2023]
Abstract
Increased high mobility group box 1 (HMGB1) in dialysis effluence is associated with the presence of peritoneal dialysis-related peritonitis in patients and peritoneal dysfunction in acute peritonitis mice model, but it remains unclear whether HMGB1 is involved in peritoneal mesothelial cell injury and functions via molecular posttranslational modifications by acetylation in this process. Here we first showed correlation between HMGB1 acetylation level in dialysis effluence of patients and occurrence of Gram-negative peritonitis. The increased level of acetylated HMGB1 was similarly observed under the lipopolysaccharides (LPS) treatment in both human peritoneal mesothelial cell line (HMrSV5) and mice visceral peritoneum tissue. Overexpression of wild-type, but not hypoacetylation mutant of HMGB1, enhanced LPS-induced apoptosis in HMrSV5 cells, which was accompanied by elevated protein levels of BAX and cleaved-caspase 3 compared to the control. Pretreatment of HMrSV5 cell with JNK inhibitor attenuated LPS-induced HMGB1 acetylation. Consistently, primary peritoneal mesothelial cells from Jnk1-/- mice showed a lower protein contents of acetylated HMGB1, fewer apoptosis, and decreased protein expression of BAX and cleaved-caspase3 after LPS exposure, as compared to those from wild-type mice. In conclusion, our data demonstrated HMGB1 promotes LPS-induced peritoneal mesothelial cells apoptosis, which is associated with JNK1-mediated upregulation of HMGB1 acetylation.
Collapse
|
6
|
Aoyagi H, Yamashiro K, Hirata‐Yoshihara C, Ideguchi H, Yamasaki M, Kawamura M, Yamamoto T, Kochi S, Wake H, Nishibori M, Takashiba S. HMGB1‐induced inflammatory response promotes bone healing in murine tooth extraction socket. J Cell Biochem 2018; 119:5481-5490. [DOI: 10.1002/jcb.26710] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 01/23/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Hiroaki Aoyagi
- Department of Pathophysiology—Periodontal ScienceOkayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayamaJapan
| | - Keisuke Yamashiro
- Department of Pathophysiology—Periodontal ScienceOkayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayamaJapan
| | - Chiaki Hirata‐Yoshihara
- Department of Pathophysiology—Periodontal ScienceOkayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayamaJapan
| | - Hidetaka Ideguchi
- Department of Pathophysiology—Periodontal ScienceOkayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayamaJapan
| | - Mutsuyo Yamasaki
- Department of Pathophysiology—Periodontal ScienceOkayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayamaJapan
| | - Mari Kawamura
- Department of Pathophysiology—Periodontal ScienceOkayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayamaJapan
| | - Tadashi Yamamoto
- Department of Pathophysiology—Periodontal ScienceOkayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayamaJapan
| | - Shinsuke Kochi
- Department of Pathophysiology—Periodontal ScienceOkayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayamaJapan
| | - Hidenori Wake
- Department of PharmacologyOkayama University Graduate School of MedicineDentistry and Pharmacological SciencesOkayamaJapan
| | - Masahiro Nishibori
- Department of PharmacologyOkayama University Graduate School of MedicineDentistry and Pharmacological SciencesOkayamaJapan
| | - Shogo Takashiba
- Department of Pathophysiology—Periodontal ScienceOkayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayamaJapan
| |
Collapse
|
7
|
Chu Y, Wang Y, Zheng Z, Lin Y, He R, Liu J, Yang X. Proinflammatory Effect of High Glucose Concentrations on HMrSV5 Cells via the Autocrine Effect of HMGB1. Front Physiol 2017; 8:762. [PMID: 29033853 PMCID: PMC5627536 DOI: 10.3389/fphys.2017.00762] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 09/19/2017] [Indexed: 12/27/2022] Open
Abstract
Background: Peritoneal fibrosis, in which inflammation and apoptosis play crucial pathogenic roles, is a severe complication associated with the treatment of kidney failure with peritoneal dialysis (PD) using a glucose-based dialysate. Mesothelial cells (MCs) take part in the inflammatory processes by producing various cytokines and chemokines, such as monocyte chemoattractant protein 1 (MCP-1) and interleukin 8 (IL-8). The apoptosis of MCs induced by high glucose levels also contributes to complications of PD. High mobility group protein B1 (HMGB1) is an inflammatory factor that has repeatedly been proven to be related to the occurrence of peritoneal dysfunction. Aim: In this study, we aimed to explore the effect and underlying mechanism of endogenous HMGB1 in high-glucose-induced MC injury. Methods: The human peritoneal MC line, HMrSV5 was cultured in high-glucose medium and incubated with recombinant HMGB1. Cellular expression of HMGB1 was blocked using HMGB1 small interfering RNA (siRNA). Apoptosis and production of inflammatory factors as well as the potential intermediary signaling pathways were examined. Results: The major findings of these analyses were: (1) MCs secreted HMGB1 from the nucleus during exposure to high glucose levels; HMGB1 acted in an autocrine fashion on the MCs to promote the production of MCP-1 and IL-8; (2) HMGB1 had little effect on high-glucose-induced apoptosis of the MCs; and (3) HMGB1-mediated MCP-1 and IL-8 production depended on the activation of MAPK signaling pathways. In conclusion, endogenous HMGB1 plays an important role in the inflammatory reaction induced by high glucose on MCs via mitogen-activated protein kinase (MAPK) signaling pathways, but it seems to have little effect on high-glucose-induced apoptosis.
Collapse
Affiliation(s)
- Yuening Chu
- Department of Nephrology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yi Wang
- Department of Oncology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Zhihuang Zheng
- Department of Nephrology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuli Lin
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Rui He
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Jun Liu
- Department of Nephrology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xuguang Yang
- Department of Oncology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|
8
|
Chimenz R, Lacquaniti A, Colavita L, Chirico V, Fede C, Buemi M, Fede C. High mobility group box 1 and tumor growth factor β: useful biomarkers in pediatric patients receiving peritoneal dialysis. Ren Fail 2016; 38:1370-1376. [DOI: 10.1080/0886022x.2016.1216711] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
|
9
|
Raby AC, Colmont CS, Kift-Morgan A, Köhl J, Eberl M, Fraser D, Topley N, Labéta MO. Toll-Like Receptors 2 and 4 Are Potential Therapeutic Targets in Peritoneal Dialysis-Associated Fibrosis. J Am Soc Nephrol 2016; 28:461-478. [PMID: 27432741 DOI: 10.1681/asn.2015080923] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 06/02/2016] [Indexed: 01/07/2023] Open
Abstract
Peritoneal dialysis (PD) remains limited by dialysis failure due to peritoneal membrane fibrosis driven by inflammation caused by infections or sterile cellular stress. Given the fundamental role of Toll-like receptors (TLRs) and complement in inflammation, we assessed the potential of peritoneal TLR2, TLR4 and C5a receptors, C5aR and C5L2, as therapeutic targets in PD-associated fibrosis. We detected TLR2-, TLR4-, and C5aR-mediated proinflammatory and fibrotic responses to bacteria that were consistent with the expression of these receptors in peritoneal macrophages (TLR2/4, C5aR) and mesothelial cells (TLR2, C5aR). Experiments in knockout mice revealed a major role for TLR2, a lesser role for TLR4, a supplementary role for C5aR, and no apparent activity of C5L2 in infection-induced peritoneal fibrosis. Similarly, antibody blockade of TLR2, TLR4, or C5aR differentially inhibited bacteria-induced profibrotic and inflammatory mediator production by peritoneal leukocytes isolated from the peritoneal dialysis effluent (PDE) of noninfected uremic patients. Additionally, antibodies against TLR2, TLR4, or the coreceptor CD14 reduced the profibrotic responses of uremic leukocytes to endogenous components present in the PDE of noninfected patients. Enhancing TLR2-mediated inflammation increased fibrosis in vivo Furthermore, soluble TLR2 (sTLR2), a negative modulator of TLRs that we detected in PDE, inhibited PDE-induced, TLR2- or TLR4-mediated profibrotic responses. Notably, sTLR2 treatment markedly reduced Gram-positive and -negative bacteria-induced fibrosis in vivo, inhibiting proinflammatory and fibrotic genes without affecting infection clearance. These findings reveal the influence of peritoneal TLR2 and TLR4 on PD-associated fibrosis and describe a therapeutic strategy against fibrosis.
Collapse
Affiliation(s)
- Anne-Catherine Raby
- Division of Infection and Immunity and The Wales Kidney Research Unit, School of Medicine, Cardiff University, Cardiff, United Kingdom;
| | - Chantal S Colmont
- Division of Infection and Immunity and The Wales Kidney Research Unit, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Ann Kift-Morgan
- Division of Infection and Immunity and The Wales Kidney Research Unit, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Jörg Köhl
- Institute for Systemic Inflammation Research, University of Lübeck, Lubeck, Germany; and.,Division of Immunobiology, Cincinnati Children's Hospital, Cincinnati, Ohio
| | - Matthias Eberl
- Division of Infection and Immunity and The Wales Kidney Research Unit, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Donald Fraser
- Division of Infection and Immunity and The Wales Kidney Research Unit, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Nicholas Topley
- Division of Infection and Immunity and The Wales Kidney Research Unit, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Mario O Labéta
- Division of Infection and Immunity and The Wales Kidney Research Unit, School of Medicine, Cardiff University, Cardiff, United Kingdom;
| |
Collapse
|
10
|
Molecular Mechanisms Underlying Peritoneal EMT and Fibrosis. Stem Cells Int 2016; 2016:3543678. [PMID: 26941801 PMCID: PMC4752998 DOI: 10.1155/2016/3543678] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 01/10/2016] [Indexed: 12/26/2022] Open
Abstract
Peritoneal dialysis is a form of renal replacement alternative to the hemodialysis. During this treatment, the peritoneal membrane acts as a permeable barrier for exchange of solutes and water. Continual exposure to dialysis solutions, as well as episodes of peritonitis and hemoperitoneum, can cause acute/chronic inflammation and injury to the peritoneal membrane, which undergoes progressive fibrosis, angiogenesis, and vasculopathy, eventually leading to discontinuation of the peritoneal dialysis. Among the different events controlling this pathological process, epithelial to mesenchymal transition of mesothelial cells plays a main role in the induction of fibrosis and in subsequent functional deterioration of the peritoneal membrane. Here, the main extracellular inducers and cellular players are described. Moreover, signaling pathways acting during this process are elucidated, with emphasis on signals delivered by TGF-β family members and by Toll-like/IL-1β receptors. The understanding of molecular mechanisms underlying fibrosis of the peritoneal membrane has both a basic and a translational relevance, since it may be useful for setup of therapies aimed at counteracting the deterioration as well as restoring the homeostasis of the peritoneal membrane.
Collapse
|
11
|
Latha TS, Lomada D, Dharani PK, Muthukonda SV, Reddy MC. Ti–O based nanomaterials ameliorate experimental autoimmune encephalomyelitis and collagen-induced arthritis. RSC Adv 2016. [DOI: 10.1039/c5ra18974h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Administration of Ti–O based nanomaterials ameliorated the clinical severity of experimental autoimmune encephalomyelitis and collagen induced arthritis, thus provide novel therapeutic approach for multiple sclerosis and rheumatoid arthritis.
Collapse
Affiliation(s)
- T. Sree Latha
- Department of Genetics and Genomics
- Yogi Vemana University
- Kadapa
- India
| | - Dakshayani Lomada
- Department of Genetics and Genomics
- Yogi Vemana University
- Kadapa
- India
| | - Praveen Kumar Dharani
- Nanocatalysis and Solar Fuels Research Laboratory
- Department of Materials Science and Nanotechnology
- Yogi Vemana University
- Kadapa
- India
| | - Shankar V. Muthukonda
- Nanocatalysis and Solar Fuels Research Laboratory
- Department of Materials Science and Nanotechnology
- Yogi Vemana University
- Kadapa
- India
| | - Madhava C. Reddy
- Department of Biotechnology and Bioinformatics
- Yogi Vemana University
- Kadapa
- India
| |
Collapse
|
12
|
Opatrna S, Popperlova A, Kalousová M, Zima T. Low glucose degradation product peritoneal dialysis regimen is associated with lower plasma EN-RAGE and HMGB-1 proinflammatory ligands of receptor for advanced glycation end products. Ther Apher Dial 2015; 18:309-16. [PMID: 24965297 DOI: 10.1111/1744-9987.12103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Intraperitoneal glucose degradation products (GDP) load influences systemic advanced glycation end products (AGEs) but the effects on soluble receptor for AGEs (s-RAGE) and its proinflammatory ligands: extracellular newly identified receptor for advanced glycation end-products binding protein(EN-RAGE) and high mobility group box-1 protein (HMGB-1) are unknown. We aimed to compare plasma and peritoneal s-RAGE, EN-RAGE and HMGB-1 between three peritoneal dialysis (PD) prescription regimens with different intraperitoneal GDP loads. High GDP load (glucose-lactate PD fluid, D; N = 8) was compared with a low (glucose-bicarbonate/lactate with icodextrin for overnight dwell, E; N = 9) and a very low GDP load (glucose-bicarbonate/lactate, P; N = 16). D group demonstrated higher plasma EN-RAGE, 77.8 ng/mL, vs. both E, 11.2, P < 0.001 and P, 27.0, P < 0.001 as well as higher plasma HMGB-1, 2.2 ng/mL vs. both E, 1.1, P < 0.01 and P, 1.5, P < 0.01. Plasma s-RAGE, which did not differ between D, E and P, correlated with its effluent levels. Patients with faster peritoneal transport (D/Pcr > 0.65) tended to have higher plasma s-RAGE compared to slow transporters (2300 vs. 1762 pg/mL, P = 0.056). Peritoneal clearance of s-RAGE and EN-RAGE was higher with E compared to both D and P (P < 0.001 resp. P < 0.01). Subgroup of PD patients with CRP above median demonstrated higher plasma HMGB-1 and EN-RAGE, P < 0.05 for both. A lower intraperitoneal GDP load is associated with decreased plasma levels of EN-RAGE and HMGB-1. Peritoneal transport, microinflammation and the capability of icodextrin to increase peritoneal clearance of middle molecular weight substances might also exert an effect on plasma s-RAGE and its proinflammatory ligands levels.
Collapse
Affiliation(s)
- Sylvie Opatrna
- Medicine I, Charles University Medical School, Pilsen, Czech Republic
| | | | | | | |
Collapse
|
13
|
Wang J, Liu S, Li H, Sun J, Zhang S, Xu X, Liu Y, Wang Y, Miao L. A review of rodent models of peritoneal dialysis and its complications. Int Urol Nephrol 2014; 47:209-15. [PMID: 25425436 DOI: 10.1007/s11255-014-0829-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Accepted: 08/26/2014] [Indexed: 12/14/2022]
Abstract
This article reviews the available rodent models of peritoneal dialysis (PD) that have been developed over the past 20 years and the complications associated with their use. Although there are several methods used in different studies, the focus of this article is not to review or provide detailed summaries of these methods. Rather, this article reviews the most common methods of establishing a dialysis model in rodents, the assays used to observe function of the peritoneum in dialysis, and how these models are adapted to study peritonitis and peritoneal fibrosis. We compared the advantages and disadvantages of different methods, which should be helpful in studies of PD and may provide valuable data for further clinical studies.
Collapse
Affiliation(s)
- Ji Wang
- Department of Nephrology, Second Hospital of Jilin University, Ziqiang Street 218, Nanguan District, Changchun, China
| | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Yu X, Yang X. Peritoneal dialysis in China: meeting the challenge of chronic kidney failure. Am J Kidney Dis 2014; 65:147-51. [PMID: 25446022 DOI: 10.1053/j.ajkd.2014.08.023] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 08/01/2014] [Indexed: 11/11/2022]
Abstract
Due to limited medical and economic resources, particularly in the countryside and remote areas, the proportion of individuals with end-stage kidney disease who are treated with dialysis in China is only about 20%. For the rest, renal replacement therapy currently is not available. Peritoneal dialysis (PD) has been developed and used for more than 30 years in China to treat patients with end-stage kidney disease. Several national PD centers of first-rate scale and quality have sprung up, but the development of PD varies widely among geographic regions across China. The Chinese government has dedicated itself to continually increasing the coverage and level of medical service for patients with end-stage kidney disease. Under the guidance of the government and because of promotion by kidney care professionals, presently there are more than 40,000 prevalent PD patients in China, representing approximately 20% of the total dialysis population. Recently, a National Dialysis Unit Training Program for countywide hospitals has been initiated. Through the efforts of programs like this, we believe that awareness of PD and advances in the underlying technology will benefit more patients with end-stage kidney disease in China.
Collapse
Affiliation(s)
- Xueqing Yu
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Key Laboratory of Nephrology, Ministry of Health, Guangzhou, China.
| | - Xiao Yang
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Key Laboratory of Nephrology, Ministry of Health, Guangzhou, China
| |
Collapse
|
15
|
Rao Y, Su J, Yang C, Yan N, Chen X, Feng X. Dynamic localization and the associated translocation mechanism of HMGBs in response to GCRV challenge in CIK cells. Cell Mol Immunol 2014; 12:342-53. [PMID: 25042634 DOI: 10.1038/cmi.2014.55] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 05/23/2014] [Accepted: 06/08/2014] [Indexed: 01/04/2023] Open
Abstract
High-mobility group box (HMGB) proteins, a family of chromatin-associated nuclear proteins, play amazingly multifaceted roles in the immune system of mammals. Thus far, little is known about the nucleocytoplasmic distribution of HMGBs in teleosts. The present study systematically investigated the dynamic localization of all six HMGB proteins in Ctenopharyngodon idella kidney (CIK) cells. Under basal conditions, all HMGBs exclusively localized to the nucleus. Grass carp reovirus (GCRV), polyinosinic-polycytidylic (poly(I∶C)) potassium salt and lipopolysaccharide (LPS) challenge evoked the nuclear export of HMGBs to various degrees: GCRV challenge induced the highest nuclear export of CiHMGB2b, and poly(I∶C) and LPS evoked the highest nucleocytoplasmic shuttling of CiHMGB1b. Overall, the nucleocytoplasmic shuttling of CiHMGB2a and CiHMGB3b was rarely induced by these challenges. Dynamic imaging uncovered that the nucleocytoplasmic GCRV-induced relocation of CiHMGB2b occurred in cells undergoing karyotheca rupture, apoptosis or proliferation. Western blot analyses were used to examine HMGB-EGFP fusion proteins in whole cell lysates, cytosol, nuclear fractions and culture medium. Further investigation demonstrated the nuclear retention of N-terminal HMG-boxes and the nucleocytoplasmic distribution of the C-terminal acidic tails. Comparative analyses of the dynamic relocation of full-length, truncated or chimeric HMGBs confirmed that the intramolecular interaction between HMG-boxes and C-tail domains mediated the nucleocytoplasmic translocation of HMGBs. These results not only provide an overall understanding of the subcellular localization of HMGBs, but also reveal the induction mechanism of the nucleocytoplasmic translocation of HMGBs by GCRV challenge, which lays a foundation for further studies on the interactions among pathogens, HMGBs and pattern recognition receptors in the innate immunity of teleosts.
Collapse
|
16
|
Baicalin Inhibits High-Mobility Group Box 1 Release and Improves Survival in Experimental Sepsis. Shock 2014; 41:324-30. [DOI: 10.1097/shk.0000000000000122] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|