Simulated model of RAPID concept: highlighting innate inflammation and liver regeneration

Background The resection and partial liver segment II/III transplantation with delayed total hepatectomy (RAPID) concept is a novel transplantation technique for removal of non‐resectable liver tumours. The aim of this study was to establish a simulated RAPID model to explore the mechanism involved...

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Bibliographic Details
Published in:BJS open 2020-10, Vol.4 (5), p.893-903
Main Authors: Shi, J. H., Yan, X., Zhang, S. J., Line, P. D.
Format: Article
Language:English
Subjects:
Bone marrow
HPB
Ischemia
Kinases
Liver
Original
Surgery
Tumors
Veins & arteries
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Summary:Background The resection and partial liver segment II/III transplantation with delayed total hepatectomy (RAPID) concept is a novel transplantation technique for removal of non‐resectable liver tumours. The aim of this study was to establish a simulated RAPID model to explore the mechanism involved in the liver regeneration. Methods A RAPID model was created in rats involving cold ischaemia and reperfusion of the selected future liver remnant (FLR), portal vein ligation, followed by resection of the deportalized lobes in a second step. Histology, liver regeneration and inflammatory markers in RAPID‐treated rats were compared with those in controls that underwent 70 per cent hepatectomy with the same FLR size. The effects of interleukin (IL) 6 and macrophage polarization on hepatocyte viability were evaluated in an in vitro co‐culture system of macrophages and BRL hepatocytes. Results The survival rate in RAPID and control hepatectomy groups was 100 per cent. The regeneration rate was higher in the RAPID‐treated rats, with higher levels of IL‐6 and M1 macrophage polarization (P 
ISSN:2474-9842
2474-9842
DOI:10.1002/bjs5.50322