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Sadeghi, M. et al.

Mahmoud Sadeghi, Volker Daniel, Cord Naujokat, Jan Schmidt, Arianeb Mehrabi, Martin Zeier, Gerhard Opelz,

Decreasing plasma soluble IL-1 receptor antagonist and increasing monocyte activation early post-transplant may be involved in pathogenesis of delayed graft function in renal transplant recipients.

Delayed graft function (DGF) increases the risk of acute allograft rejection and may affect long-term graft survival. We compared pre-transplant, early post-transplant, and late post-transplant serum creatinine (Cr) and plasma levels of neopterin, cytokines, and cytokine receptors/antagonists in patients with DGF (n = 39), slow graft function (SGF) (n = 43), or immediate graft function (IGF) (n = 30). Three and eight days post-transplant, plasma neopterin (p < 0.001; p < 0.001), Soluble Interleukin-6 (IL-6) receptor (R) (p = 0.002; p = 0.001), and IL-10 (p = 0.003; p = 0.001) were higher in DGF than IGF patients. One month post-transplant, plasma neopterin (p < 0.001) and IL-10 (p < 0.001) were higher in DGF than IGF patients. Three days post-transplant, the results indicated reduced sIL-1 receptor antognist (RA) production in DGF patients (p = 0.001). Simultaneously, plasma sIL-6R and IL-10 increased in DGF (p < 0.001; p = 0.003) and SGF (p = 0.007; p = 0.030) patients, indicating increased production of sIL-6R and IL-10. Lower sIL-1 production in DGF than IGF patients early post-transplant might promote the increased production of monocyte-derived neopterin, sIL-6R, and IL-10. This monocyte/macrophage activation might induce inflammation in the graft and subsequently cause an impairment of graft function. Blocking of monocyte activity after renal transplantation may be considered a potential approach for improving graft outcome.[1]

References

Decreasing plasma soluble IL-1 receptor antagonist and increasing monocyte activation early post-transplant may be involved in pathogenesis of delayed graft function in renal transplant recipients. Sadeghi, M., Daniel, V., Naujokat, C., Schmidt, J., Mehrabi, A., Zeier, M., Opelz, G. Clin. Transplant (2010) [Pubmed]

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