Attenuation of rat chronic small bowel allograft rejection by n-3 polyunsaturated fatty acids is associated with reduced expression of graft IL-15

作者：Wang Jian; Li Yousheng^*; Li Jieshou

来源：Pediatric Transplantation, 2013, 17(6): 561-566.

DOI：10.1111/petr.12120

• n-3 PUFA
• interleukin-15
• small bowel transplantation
• chronic rejection
• rats

Interleukin-15 was found to play key roles in various immunological processes including chronic rejection after renal and cardiac transplantation. n-3 polyunsaturated fatty acids (n-3 PUFA) have shown beneficial effects to chronic allograft rejection. The objective of this study is to search the possible mechanism of this inhibitory effect in chronic small bowel allograft rejection. Animals were divided into three groups: isograft (CsA + corn oil-supplemented diet); allograft (CsA + corn oil-supplemented diet); and allograft (CsA + fish oil-supplemented diet). Donor intestines from F344 rats were transplanted orthotopically into Lewis rat recipients. CsA was administered at 5 mg/kg/day for 2 wk post-operatively. Post-transplant weight was recorded. Histopathological changes and graft IL-15 expression were measured on POD 90. Chronic small bowel allograft rejection developed on POD 90. n-3 PUFA significantly decreased the score of chronic rejection and increased the post-operative weight gain rate. This attenuation is associated with reduced graft IL-15 expression. n-3 PUFA contributed to improved pathological and clinical outcome during chronic small bowel allograft rejection, and this improvement was associated with reduced graft IL-15 expression.

• 出版日期2013-9
• 单位南京大学