Effect of polyethylene glycol in pig intestinal allotransplantation without immunosuppression - Archive ouverte HAL
Article Dans Une Revue Journal of Surgical Research Année : 2012

Effect of polyethylene glycol in pig intestinal allotransplantation without immunosuppression

Résumé

Objectives: We evaluated whether IGL-1, a graft preservation solution containing polyethylene glycol, improves the outcome of small bowel grafts in comparison to the University of Wisconsin (UW) solution in a pig allotransplantation model.[br/] Materials and Methods: Seventeen pigs were randomly allocated to group 1 (n = 10; intestinal allotransplantation with IGL-1) and group 2 (n = 7; allotransplantation with UW). Pigs received no immunosuppression and were sacrificed on postoperative d (POD) 8. Intestinal specimens were obtained from the animal immediately before cold flushing (T0), 2 h after graft reperfusion (T1), and at sacrifice (T2).[br/] Results: Survival rate to POD 8 was 50% in group 1 compared with 16% in group 2 (P < 0.05); 62% of pigs in group 1 did not present any acute cellular rejection (ACR) compared to 16% in group 2 (P < 0.05). Severe ACR rate was 25% in group 1 and 66% in group 2 (P < 0.05). iNOS activity and intestinal caspase 3 levels increased significantly between T0 and T1 in group 1 compared to group 2 (P < 0.05). Cell necrosis increased significantly between TO and T1 in group 2 compared with group 1 (P < 0.05) whereas cell apoptosis was significantly higher at T1 compared with T0 in group 1 in comparison to group 2.[br/] Conclusions: Our results show that IGL-1 improves intestinal graft viability as compared to UW solution, possibly by reducing graft immunogenicity and by favoring intestinal epithelial repair.

Dates et versions

hal-01000002 , version 1 (04-06-2014)

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Thierry T. Yandza, Michel M. Tauc, Danielle D. Canioni, Claire Gaillard, Ghislaine G. Bernard, et al.. Effect of polyethylene glycol in pig intestinal allotransplantation without immunosuppression. Journal of Surgical Research, 2012, 176 (2), pp.621-628. ⟨10.1016/j.jss.2011.10.012⟩. ⟨hal-01000002⟩
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