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Viklicky, Ondrej; Krystufkova, Eva; Brabcova, Irena; Sekerkova, Alena; Wohlfahrt, Peter; Hribova, Petra; Wohlfahrtova, Mariana; Sawitzki, Birgit; Slatinska, Janka; Striz, Ilja; Volk, Hans-Dieter; Reinke, Petra
Transplantation, 2013-Jan-15, 2013-01-15, 20130115, Letnik: 95, Številka: 1Journal Article
Molecular signatures have recently been identified in operationally tolerant long-term kidney transplant patients; however, their expression in patients on immunosuppression remains unclear. In this prospective study, the gene expression profiles of eight selected tolerance-associated genes (MS4A1, CD79B, TCL1A, TMEM176B, FOXP3, TOAG-1, MAN1A1, and TLR5) in the peripheral blood of 67 kidney transplant recipients at days 0, 7, 14, 21, 28, 60, 90, and at 6 and 12 months, and in graft biopsies were measured. Similarly, using flow cytometry, CD45CD19CD3 B-cell counts were evaluated in the follow-up. Expression patterns were compared among patients with biopsy-proven acute rejection, borderline changes, and in rejection-free patients. A generalized linear mixed model with gamma distribution for repeated measures adjusted for induction therapy was used for statistical analysis of longitudinal data and Kruskal-Wallis test for case biopsy data. Compared to patients with rejection, a significantly higher number of peripheral B cells were observed during follow-up in rejection-free patients and in patients with borderline changes. Gene expression patterns of MS4A1 (CD20), TCL1A, CD79B, TOAG-1, and FOXP3 genes were significantly higher in rejection-free patients as compared to rejection group with the highest differences during the first 3 months. In contrast, TMEM176B (TORID) was up-regulated in the rejection group. Similar trends were also observed between patients with borderline changes and acute rejection. Higher intragraft expression of TOAG-1 was observed in rejection-free patients. These observations suggest an association of B-cell signatures, seen also in drug-free tolerant patients, with controlled alloimmune response.
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Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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