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全反式维甲酸抑制IL-23/IL-17通路促进小鼠移植皮肤存活的研究

徐三荣   

  1. 江苏大学附属医院普外科
  • 收稿日期:2013-01-04 修回日期:2013-06-27 出版日期:2013-11-15 发布日期:2013-11-15
  • 通讯作者: 徐三荣

All-Trans Retinoic Acid Attenuates Interleukin-23/Interleukin-17Pathway and Promotes Skin Allograft Survival in Mice

XU San rong   

  1. Department of General Surgery, Affiliated Hospital of Jiangsu University
  • Received:2013-01-04 Revised:2013-06-27 Published:2013-11-15 Online:2013-11-15
  • Contact: XU San rong

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摘要：

 【摘要】  目的  探讨全反式维甲酸(ATRA)灌胃对小鼠同种异基因皮肤移植存活时间的影响及白细胞介素(IL)-23、IL-17通路在其中的作用。  方法  以DBA/2小鼠为供者，Babl/c小鼠为受者建立皮肤移植模型。随机将受者分为对照组、小剂量组和大剂量组，分别在术前1d至术后14d或判定皮肤死亡之日每天给3组小鼠分别灌胃注射玉米油、10mg/kg和30mg/kg ATRA玉米油溶液。术后观察各组皮肤移植物存活时间，皮肤组织切片检测病理改变，酶联免疫吸附试验检测血清IL-23和IL-17水平，实时荧光定量PCR检测移植皮肤中IL-23、转录因子孤核受体（ROR）γt和IL-17mRNA表达。  结果  与对照组比较，小剂量组和大剂量组皮肤移植存活时间延长（P<0.05），炎症细胞浸润及组织破坏程度轻，血清IL-23水平降低（P<0.05），而两治疗组间差异无统计学意义。对照组、小剂量组及大剂量组血清IL-17水平依次降低（P<0.05）。小剂量组和大剂量组皮肤移植物中IL-23、RORγt和IL-17mRNA表达水平均较对照组低（P<0.05），而两治疗组间差异无统计学意义。  结论  ATRA灌胃可显著延长小鼠移植皮肤存活时间，其机制可能与抑制IL-23、RORγt、IL-17mRNA表达和蛋白分泌有关。

关键词: 维甲酸, 皮肤移植, 白细胞介素17, 白细胞介素23, 小鼠, 近交BALB C, 小鼠, 近交DBA

Abstract:

[Abstract]   Objective   To investigate the effects of all- trans retinoic acid (ATRA)- intragastric- administration on
the survival time of mouse skin allografts and the role of interleukin (IL)-23and IL-17thereof.   Methods    The skin trans-plantation of mice was done by DBA/2as donors and Balb/c as recipients. The recipients were divided randomly into three groups: control group, low-dose group and high-dose group. Mice of the corresponding groups were intragastrically administered corn oil, 10mg/kg ATRA and30mg/kg ATRA respectively from1day before the transplantation to the14th day after  the transplantation. The survival time of transplanted skin was observed after the operations. Skin grafts of mice were harvested for histopathological examination in three groups. The serum levels of IL-23and IL-17were measured by enzyme-linked immunosorbent assay (ELISA). The expression levels of IL-23, RORγt and IL-17mRNA in skin allografts were detected by real-time fluorescent quantitative reverse transcriptase polymerase chain reaction (RT-PCR).   Results   Compared with control group, the average survival time of mouse skin allografts was significantly prolonged in low-dose group and high-dose group (P<0.05). The less lymphocyte infiltration and destruction of architecture were found in the skin biopsies. The serum expression of IL-23protein was lower (P<0.05), but no significant difference was found in two treatment groups. The serum expression levels of IL-17protein were reduced in turn in receptors of control group, low-dose group and high-dose group (P<0.05). The expression levels of IL-23, RORγt and IL-17mRNA in skin grafts were significantly lower in low-dose group and high-dose group than those of control group (P<0.05), but no significant difference was found in two treatment groups.   Conclusion   ATRA can effectively prolong the survival time of skin allografts, which may related with the inhibition of the expression of IL-23, RORγt and IL-17mRNA and the development of IL-23and IL-17protein

Key words: tretinoin, Skin transplantation, interleukin-17, interleukin-23, mice, inbred BALB C, mice, 近交DBA