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Title

Polyethylene glycol 35 as a perfusate additive for mitochondrial and glycocalyx protection in HOPE liver preservation

AuthorsPanisello-Roselló, Arnau; Teixeira da Silva, Rui; Castro, Carlos; G. Bardallo, Raquel; Calvo, Maria; Folch-Puy, Emma CSIC ORCID ; Carbonell, Teresa; Palmeira, Carlos; Roselló Catafau, Joan; Adam, René
Keywordspolyethylene glycol 35 (PEG35)
hydroxyethyl starch (HES)
UW solution
IGL-1 solution
Belzer-MPS
HOPE
liver graft preservation
Issue Date9-Aug-2020
PublisherMultidisciplinary Digital Publishing Institute
CitationInternational Journal of Molecular Sciences 21(16): 5703 (2020)
AbstractOrgan transplantation is a multifactorial process in which proper graft preservation is a mandatory step for the success of the transplantation. Hypothermic preservation of abdominal organs is mostly based on the use of several commercial solutions, including UW, Celsior, HTK and IGL-1. The presence of the oncotic agents HES (in UW) and PEG35 (in IGL-1) characterize both solution compositions, while HTK and Celsior do not contain any type of oncotic agent. Polyethylene glycols (PEGs) are non-immunogenic, non-toxic and water-soluble polymers, which present a combination of properties of particular interest in the clinical context of ischemia-reperfusion injury (IRI): they limit edema and nitric oxide induction and modulate immunogenicity. Besides static cold storage (SCS), there are other strategies to preserve the organ, such as the use of machine perfusion (MP) in dynamic preservation strategies, which increase graft function and survival as compared to the conventional static hypothermic preservation. Here we report some considerations about using PEG35 as a component of perfusates for MP strategies (such as hypothermic oxygenated perfusion, HOPE) and its benefits for liver graft preservation. Improved liver preservation is closely related to mitochondria integrity, making this organelle a good target to increase graft viability, especially in marginal organs (e.g., steatotic livers). The final goal is to increase the pool of suitable organs, and thereby shorten patient waiting lists, a crucial problem in liver transplantation.
Publisher version (URL)https://doi.org/10.3390/ijms21165703
URIhttp://hdl.handle.net/10261/218467
DOI10.3390/ijms21165703
E-ISSN1422-0067
Appears in Collections:(IIBB) Artículos

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