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Hydrogen Sulfide Treatment Mitigates Renal Allograft Ischemia-Reperfusion Injury during Cold Storage and Improves Early Transplant Kidney Function and Survival Following Allogeneic Renal Transplantation.
Lobb, Ian; Davison, Michael; Carter, David; Liu, Weihua; Haig, Aaron; Gunaratnam, Lakshman; Sener, Alp.
Afiliação
  • Lobb I; Department of Microbiology and Immunology, London Health Sciences Center, Western University, London, Ontario, Canada; Matthew Mailing Center for Translational Transplant Studies, London Health Sciences Center, Western University, London, Ontario, Canada.
  • Davison M; Matthew Mailing Center for Translational Transplant Studies, London Health Sciences Center, Western University, London, Ontario, Canada.
  • Carter D; Research Institute, London Health Sciences Center, Western University, London, Ontario, Canada.
  • Liu W; Department of Pathology, London Health Sciences Center, Western University, London, Ontario, Canada.
  • Haig A; Department of Pathology, London Health Sciences Center, Western University, London, Ontario, Canada.
  • Gunaratnam L; Department of Microbiology and Immunology, London Health Sciences Center, Western University, London, Ontario, Canada; Multi-Organ Transplant Program, Western University, London Health Sciences Center, Western University, London, Ontario, Canada; Department of Medicine, London Health Sciences Center
  • Sener A; Department of Microbiology and Immunology, London Health Sciences Center, Western University, London, Ontario, Canada; Department of Surgery, London Health Sciences Center, Western University, London, Ontario, Canada; Multi-Organ Transplant Program, Western University, London Health Sciences Center,
J Urol ; 194(6): 1806-15, 2015 Dec.
Article em En | MEDLINE | ID: mdl-26239336
PURPOSE: Ischemia-reperfusion injury is unavoidable during organ transplantation. Prolonged ischemia-reperfusion injury is detrimental to short-term and long-term graft function and survival. H2S is a recently characterized, endogenously produced gaseous molecule with important physiological roles that has been shown to be cytoprotective during tissue ischemia-reperfusion injury. The current study aimed to determine whether H2S could mitigate cold renal ischemia-reperfusion injury in the clinically relevant context of allogeneic renal transplantation. MATERIALS AND METHODS: Following bilateral native nephrectomy Lewis rats underwent renal transplantation with kidneys from Brown Norway donor rats that were flushed with cold (4C) standard University of Wisconsin preservation solution (University of Wisconsin preservation solution group) or cold University of Wisconsin preservation solution plus 150 µM NaHS (H2S group) solution. Kidneys were stored for 6 hours at 4C in the same solution. Recipient animals were monitored for 14 days or until sacrifice using metabolic cages to assess various parameters of renal graft function. RESULTS: H2S treatment improved early allograft survival and function, and decreased early levels of necrosis, apoptosis and Kim-1 compared to University of Wisconsin preservation solution alone. H2S treatment did not affect allograft rejection. Rather, it modulated the early allograft transcriptome to decrease the expression of renal injury, coagulation and cellular stress response genes, and increase the expression of cellular proliferation and Ifn-γ induced genes compared to University of Wisconsin preservation solution alone. CONCLUSIONS: To our knowledge our findings are the first to show that H2S protects donor kidneys against cold ischemia-reperfusion injury in the context of allogeneic renal transplantation. This potentially represents a novel cost-effective therapeutic solution to mitigate ischemia-reperfusion injury and improve the clinical outcomes of renal transplantation.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Preservação de Órgãos / Traumatismo por Reperfusão / Transplante de Rim / Modelos Animais de Doenças / Isquemia Fria / Disfunção Primária do Enxerto / Sobrevivência de Enxerto / Sulfeto de Hidrogênio Tipo de estudo: Prognostic_studies Limite: Animals Idioma: En Revista: J Urol Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Canadá

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Preservação de Órgãos / Traumatismo por Reperfusão / Transplante de Rim / Modelos Animais de Doenças / Isquemia Fria / Disfunção Primária do Enxerto / Sobrevivência de Enxerto / Sulfeto de Hidrogênio Tipo de estudo: Prognostic_studies Limite: Animals Idioma: En Revista: J Urol Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Canadá