Impact of pancreatic cold preservation on rat islet recovery and function

Antonello Pileggi, Melina M. Ribeiro, Anthony R. Hogan, R. Damaris Molano, Lorenzo Cobianchi, Hirohito Ichii, Jennifer Embury, Luca Inverardi, Alessia Fornoni, Camillo Ricordi, Ricardo L. Pastori

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

BACKGROUND.: Islet transplantation success depends on the number and quality of islets transplanted. This study aimed at exploring the molecular mechanisms associated with cold pancreas preservation and their impact on islet cell survival and function. METHODS.: Rat pancreata were stored in cold University of Wisconsin preservation solution for short (3 hr; control) or long (18 hr) cold ischemia times (CIT). RESULTS.: Pancreata exposed to long CIT yielded lower islet numbers and showed reduced cellular viability; isolated islets displayed higher levels of phosphorylated stress-activated protein kinase (c-jun N-terminal Kinase and Mitogen-Activated Protein Kinase-p38), and chemokine (C-C) ligand-3, and lower levels of vascular endothelial growth factor, interleukins (IL)-9 and IL-10. Islets obtained from long-CIT pancreata were functionally impaired after transplantation. Differential proteomic expression in pancreatic tissue after CIT included increased eukaryotic translation elongation factor-1-α-1 (apoptosis related) and reduced Clade-B (serine protease inhibitor). CONCLUSIONS.: Our study indicates that cold ischemia stimulates inflammatory pathways (chemokine (c-c)ligand-3, phosphorylation of c-jun N-terminal Kinase and mitogen-activated protein kinase-p38, and eukaryotic translation elongation factor-1-α-1) and decreases repair/cytoprotective pathways (IL-10, vascular endothelial growth factor, and Clade-B), all of which may negatively affect the quality and mass of islets obtained from a donor pancreas.

Original languageEnglish (US)
Pages (from-to)1442-1450
Number of pages9
JournalTransplantation
Volume87
Issue number10
DOIs
StatePublished - May 27 2009

Keywords

  • Athymic nude mice
  • Cold ischemia
  • Islet cell viability
  • Islet transplantation
  • Lewis rats
  • Pancreas preservation
  • Potency

ASJC Scopus subject areas

  • Transplantation

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