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Poppelaars F, Gaya da Costa M, Faria B, Eskandari SK, Damman J, Seelen MA. A functional TGFB1 polymorphism in the donor associates with long-term graft survival after kidney transplantation. Clin Kidney J 2022; 15:278-286. [PMID: 35145642 PMCID: PMC8824786 DOI: 10.1093/ckj/sfab175] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Indexed: 12/17/2022] Open
Abstract
Background Improvement of long-term outcomes in kidney transplantation remains one of the most pressing challenges, yet drug development is stagnating. Human genetics offers an opportunity for much-needed target validation in transplantation. Conflicting data exist about the effect of transforming growth factor-beta 1 (TGF-β1) on kidney transplant survival, since TGF-β1 has pro-fibrotic and protective effects. We investigated the impact of a recently discovered functional TGFB1 polymorphism on kidney graft survival. Methods We performed an observational cohort study analysing recipient and donor DNA in 1271 kidney transplant pairs from the University Medical Centre Groningen in The Netherlands, and associated a low-producing TGFB1 polymorphism (rs1800472-C > T) with 5-, 10- and 15-year death-censored kidney graft survival. Results Donor genotype frequencies of rs1800472 in TGFB1 differed significantly between patients with and without graft loss (P = 0.014). Additionally, the low-producing TGFB1 polymorphism in the donor was associated with an increased risk of graft loss following kidney transplantation (hazard ratio = 2.12 for the T-allele; 95% confidence interval 1.18–3.79; P = 0.012). The incidence of graft loss within 15 years of follow-up was 16.4% in the CC-genotype group and 31.6% in the CT-genotype group. After adjustment for transplant-related covariates, the association between the TGFB1 polymorphism in the donor and graft loss remained significant. In contrast, there was no association between the TGFB1 polymorphism in the recipient and graft loss. Conclusions Kidney allografts possessing a low-producing TGFB1 polymorphism have a higher risk of late graft loss. Our study adds to a growing body of evidence that TGF-β1 is beneficial, rather than harmful, for kidney transplant survival.
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Affiliation(s)
- Felix Poppelaars
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Mariana Gaya da Costa
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Bernardo Faria
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Nephrology and Infectious Disease R&D Group, INEB, Institute of Investigation and Innovation in Health (i3S), University of Porto, Porto, Portugal
| | - Siawosh K Eskandari
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jeffrey Damman
- Department of Pathology, Erasmus Medical Center, University Medical Center, Rotterdam, The Netherlands
| | - Marc A Seelen
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Bartlett R, Sluyter V, Watson D, Sluyter R, Yerbury JJ. P2X7 antagonism using Brilliant Blue G reduces body weight loss and prolongs survival in female SOD1 G93A amyotrophic lateral sclerosis mice. PeerJ 2017; 5:e3064. [PMID: 28265522 PMCID: PMC5335685 DOI: 10.7717/peerj.3064] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Accepted: 02/04/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Amyotrophic lateral sclerosis (ALS) is a rapidly progressive neurodegenerative disease characterised by the accumulation of aggregated proteins, microglia activation and motor neuron loss. The mechanisms underlying neurodegeneration and disease progression in ALS are unknown, but the ATP-gated P2X7 receptor channel is implicated in this disease. Therefore, the current study aimed to examine P2X7 in the context of neurodegeneration, and investigate whether the P2X7 antagonist, Brilliant Blue G (BBG), could alter disease progression in a murine model of ALS. METHODS Human SOD1G93A transgenic mice, which normally develop ALS, were injected with BBG or saline, three times per week, from pre-onset of clinical disease (62-64 days of age) until end-stage. During the course of treatment mice were assessed for weight, clinical score and survival, and motor coordination, which was assessed by rotarod performance. Various parameters from end-stage mice were assessed as follows. Motor neuron loss and microgliosis were assessed by immunohistochemistry. Relative amounts of lumbar spinal cord SOD1 and P2X7 were quantified by immunoblotting. Serum monocyte chemoattractant protein-1 was measured by ELISA. Splenic leukocyte populations were assessed by flow cytometry. Relative expression of splenic and hepatic P2X7 mRNA was measured by quantitative real-time PCR. Lumbar spinal cord SOD1 and P2X7 were also quantified by immunoblotting in untreated female SOD1G93A mice during the course of disease. RESULTS BBG treatment reduced body weight loss in SOD1G93A mice of combined sex, but had no effect on clinical score, survival or motor coordination. BBG treatment reduced body weight loss in female, but not male, SOD1G93A mice. BBG treatment also prolonged survival in female, but not male, SOD1G93A mice, extending the mean survival time by 4.3% in female mice compared to female mice treated with saline. BBG treatment had no effect on clinical score or motor coordination in either sex. BBG treatment had no major effect on any end-stage parameters. Total amounts of lumbar spinal cord SOD1 and P2X7 in untreated female SOD1G93A mice did not change over time. DISCUSSION Collectively, this data suggests P2X7 may have a partial role in ALS progression in mice, but additional research is required to fully elucidate the contribution of this receptor in this disease.
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Affiliation(s)
- Rachael Bartlett
- Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia
- School of Biological Sciences, University of Wollongong, Wollongong, NSW, Australia
- Centre for Medical and Molecular Biosciences, Wollongong, NSW, Australia
| | - Vanessa Sluyter
- Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia
- School of Biological Sciences, University of Wollongong, Wollongong, NSW, Australia
- Centre for Medical and Molecular Biosciences, Wollongong, NSW, Australia
| | - Debbie Watson
- Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia
- School of Biological Sciences, University of Wollongong, Wollongong, NSW, Australia
- Centre for Medical and Molecular Biosciences, Wollongong, NSW, Australia
| | - Ronald Sluyter
- Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia
- School of Biological Sciences, University of Wollongong, Wollongong, NSW, Australia
- Centre for Medical and Molecular Biosciences, Wollongong, NSW, Australia
| | - Justin J. Yerbury
- Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia
- School of Biological Sciences, University of Wollongong, Wollongong, NSW, Australia
- Centre for Medical and Molecular Biosciences, Wollongong, NSW, Australia
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Kamińska D, Kościelska-Kasprzak K, Krajewska M, Chełmoński A, Jabłecki J, Żabińska M, Myszka M, Banasik M, Boratyńska M, Gomółkiewicz A, Dzięgiel P, Klinger M. Immune activation- and regulation-related patterns in stable hand transplant recipients. Transpl Int 2016; 30:144-152. [DOI: 10.1111/tri.12883] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/06/2016] [Accepted: 11/02/2016] [Indexed: 11/26/2022]
Affiliation(s)
- Dorota Kamińska
- Department of Nephrology and Transplantation Medicine; Wroclaw Medical University; Wroclaw Poland
| | | | - Magdalena Krajewska
- Department of Nephrology and Transplantation Medicine; Wroclaw Medical University; Wroclaw Poland
| | - Adam Chełmoński
- Subdepartment of Replantation of Limbs; St. Hedwig of Silesia Hospital; Trzebnica Poland
| | - Jerzy Jabłecki
- Subdepartment of Replantation of Limbs; St. Hedwig of Silesia Hospital; Trzebnica Poland
| | - Marcelina Żabińska
- Department of Nephrology and Transplantation Medicine; Wroclaw Medical University; Wroclaw Poland
| | - Marta Myszka
- Department of Nephrology and Transplantation Medicine; Wroclaw Medical University; Wroclaw Poland
| | - Mirosław Banasik
- Department of Nephrology and Transplantation Medicine; Wroclaw Medical University; Wroclaw Poland
| | - Maria Boratyńska
- Department of Nephrology and Transplantation Medicine; Wroclaw Medical University; Wroclaw Poland
| | | | - Piotr Dzięgiel
- Department of Histology and Embryology; Wroclaw Medical University; Wroclaw Poland
| | - Marian Klinger
- Department of Nephrology and Transplantation Medicine; Wroclaw Medical University; Wroclaw Poland
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Wang YY, Jiang H, Wang YC, Huang XR, Pan J, Yang C, Shou ZF, Xiang SL, Chen DJ, Lan HY, Chen JH. Deletion of Smad3 improves cardiac allograft rejection in mice. Oncotarget 2016. [PMID: 26219259 PMCID: PMC4627288 DOI: 10.18632/oncotarget.4849] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
T cells play a critical role in acute allograft rejection. TGF-β/Smad3 signaling is a key pathway in regulating T cell development. We report here that Smad3 is a key transcriptional factor of TGF-β signaling that differentially regulates T cell immune responses in a mouse model of cardiac allograft rejection in which donor hearts from BALB/c mice were transplanted into Smad3 knockout (KO) and wild type (WT) mice. Results showed that the cardiac allograft survival was prolonged in Smad3 KO recipients. This allograft protection was associated with a significant inhibition of proinflammatory cytokines (IL-1β, TNF-α, and MCP-1) and infiltration of neutrophils, CD3+ T cells, and F4/80+ macrophages. Importantly, deletion of Smad3 markedly suppressed T-bet and IFN-γ while enhancing GATA3 and IL-4 expression, resulting in a shift from the Th1 to Th2 immune responses. Furthermore, mice lacking Smad3 were also protected from the Th17-mediated cardiac injury, although the regulatory T cell (Treg) response was also suppressed. In conclusion, Smad3 is an immune regulator in T cell-mediated cardiac allograft rejection. Loss of Smad3 results in a shift from Th1 to Th2 but suppressing Th17 immune responses. Thus, modulation of TGF-β/Smad3 signaling may be a novel therapy for acute allograft rejection.
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Affiliation(s)
- Ying-Ying Wang
- Kidney Disease Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Li Ka Shing Institute of Health Sciences, and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
| | - Hong Jiang
- Kidney Disease Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yu-Cheng Wang
- Kidney Disease Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Li Ka Shing Institute of Health Sciences, and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiao-Ru Huang
- Li Ka Shing Institute of Health Sciences, and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China.,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Jun Pan
- Li Ka Shing Institute of Health Sciences, and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China.,Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Division of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Chen Yang
- Li Ka Shing Institute of Health Sciences, and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
| | - Zhang-Fei Shou
- Kidney Disease Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shi-Long Xiang
- Kidney Disease Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Da-Jin Chen
- Kidney Disease Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Hui-Yao Lan
- Li Ka Shing Institute of Health Sciences, and Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China.,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Jiang-Hua Chen
- Kidney Disease Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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Kumari S, Jamal F, Shivam P, Thakur A, Kumar M, Bimal S, Das V, Pandey K, Narayan S, Gupta A, Das P, Singh SK. Leishmania donovani skews the CD56+ Natural Killer T cell response during human visceral leishmaniasis. Cytokine 2015; 73:53-60. [DOI: 10.1016/j.cyto.2015.01.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 01/16/2015] [Accepted: 01/20/2015] [Indexed: 01/05/2023]
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