Perioperative kinetics of heat shock protein 60 in serum during orthotopic liver transplantation.
Transplant Proc
; 36(5): 1469-72, 2004 Jun.
Article
en En
| MEDLINE
| ID: mdl-15251360
ABSTRACT
INTRODUCTION:
Heat shock proteins (HSP) play essential roles in the synthesis, transport, and folding of proteins. During ischemia/reperfusion (I/R) injury to orthotopic liver transplants (OLT), disassembly of oligomeric complexes and unfolding of proteins are likely to occur, producing a major burden on HSP to prevent and/or reverse these events. To date, all studies have evaluated HSP expression in tissues after an I/R injury. No data are available on HSP serum levels during I/R injury in liver graft recipients. PATIENTS ANDMETHODS:
We evaluated the intraoperative and perioperative kinetics of HSP60 in the serum of 25 liver graft recipients.RESULTS:
We observed a significant increase in serum levels of HSP60 at 4 hours compared with 30 minutes after reperfusion of the graft (P = .028). The perioperative HSP60 kinetics in serum neither correlated with the cold ischemia time nor the indocyanin green clearance. The type of preservation solution had no effect on serum HSP60 levels.CONCLUSION:
This first study provides evidence for increased serum levels of HSP60 after reperfusion in OLT. The perioperative kinetics of HSP60 in serum may result from suppressed protein synthesis caused by a reduced energy charge of hepatocytes during early reperfusion, impaired transcription, and/or corticosteroid treatment. Further studies are needed to clarify the role of HSP60 under clinical conditions including immunosuppressive medications in human OLT.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Trasplante de Hígado
/
Chaperonina 60
Límite:
Humans
Idioma:
En
Revista:
Transplant Proc
Año:
2004
Tipo del documento:
Article
País de afiliación:
Austria