| Intragraft Regulatory T Cells in Protocol Biopsies Retain Foxp3 Demethylation and Are Protective Biomarkers for Kidney Graft Outcome. | |
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MedLine Citation:
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PMID: 21749644 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Presence of subclinical rejection (SCR) with IF/TA in protocol biopsies of renal allografts has been shown to be an independent predictor factor of graft loss. Also, intragraft Foxp3+ T(reg) cells in patients with SCR has been suggested to differentiate harmful from potentially protective infiltrates. Nonetheless, whether presence of Foxp3 T(reg) cells in patients with SCR and IF/TA may potentially protect from a deleterious graft outcome has not yet been evaluated. This is a case-control study in which 37 patients with the diagnosis of SCR and 68 control patients with no cellular infiltrates at 6-month protocol biopsies matched for age and time of transplantation were evaluated. We first confirmed that numbers of intragraft Foxp3-expressing T cells in patients with SCR positively correlates with Foxp3 demethylation at the T(reg) -specific demethylation region. Patients with SCR without Foxp3+ T(reg) cells within graft infiltrates showed significantly worse 5-year graft function evolution than patients with SCR and Foxp3+ T(reg) cells and those without SCR. When presence of SCR and IF/TA were assessed together, presence of Foxp3+ T(reg) could discriminate a subgroup of patients showing the same graft outcome as patients with a normal biopsy. Thus, presence of Foxp3+ T(reg) cells in patients with SCR even with IF/TA is associated with a favorable long-term allograft outcome. |
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Authors:
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O Bestard; L Cuñetti; J M Cruzado; M Lucia; R Valdez; S Olek; E Melilli; J Torras; R Mast; M Gomà; M Franquesa; J M Grinyó |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-12 |
Journal Detail:
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Title: American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons Volume: - ISSN: 1600-6143 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-13 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100968638 Medline TA: Am J Transplant Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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©2011 The Authors Journal compilation©2011 The American Society of Transplantation and the American Society of Transplant Surgeons. |
Affiliation:
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Department of Nephrology Laboratory of Experimental Nephrology, Hospital Universitari de Bellvitge, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain Epiontis GmbH, Berlin, Germany Department of Radiology, Hospital Universitari de Bellvitge, Barcelona, Spain Department of Pathology, Hospital Universitari de Bellvitge, Barcelona, Spain Departments of Nephrology and Pharmacology, Universidad de la República, Montevideo, Uruguay. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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