小鼠肾移植模型:3种创新术式  

Mouse kidney transplantation model:Three novel methods

作　　者：汤周琦 冯晨 李亚光 李腾芳 张和栋 曾颖祺 彭龙开[1,2] 谢续标 彭风华[1,2] 代贺龙 TANG Zhouqi;FENG Chen;LI Yaguang;LI Tengfang;ZHANG Hedong;ZENG Yingqi;PENG Longkai;XIE Xubiao;PENG Fenghua;DAI Helong(Department of Kidney Transplantation,Second Xiangya Hospital,Central South University,Changsha 410011;Clinical Research Center for Organ Transplantation in Hunan Province,Changsha 410011;Clinical Immunology Center,Central South University,Changsha 410011,China)

机构地区：[1]中南大学湘雅二医院肾脏移植科,长沙410011 [2]湖南省器官移植临床医学研究中心,长沙410011 [3]中南大学临床免疫研究中心,长沙410011

出　　处：《中南大学学报（医学版）》2024年第2期220-235,共16页Journal of Central South University ：Medical Science

基　　金：supported by the National Natural Science Foundation of China(82070776)。

摘　　要：目的:小鼠肾移植模型手术难度大,成功率低,难以掌握,本研究拟改良并探索新型小鼠肾移植模型,为移植免疫基础研究提供借鉴。方法:分别建立小鼠腹部缝合法原位肾移植模型、腹部套管法原位肾移植模型和颈部套管法异位肾移植模型共57对供受体。供受体采用BALB/c小鼠或C57BL/6小鼠;供受体均选用8~12周龄、体重20~25 g的雄性无特定病原级小鼠。总结和比较3种模型的技术特点和手术时间、并发症、病理学检查等术后早期指标。结果:成功建立3种不同手术方式的小鼠肾移植模型。3组小鼠供肾热缺血时间比较差异无统计学意义(P=0.5104),腹部缝合组的供体手术总时间与腹部套管组和颈部套管组比较最短[(18.3±3.6)min vs(26.2±4.7)min和(22.8±2.5)min;均P<0.0001]。冷缺血时间比较3组差异有统计学意义(P<0.0001),腹部套管组、颈部套管组及腹部缝合组分别为(88.8±6.7)、(60.8±4.1)及(43.3±5.0)min。受体由于吻合方式不同,颈部套管用时最短[(17.6±2.7)min],腹部套管用时最长[(38.8±5.4)min]。受体的总手术时间比较差异有统计学意义(P<0.0001),腹部缝合组、颈部套管组及腹部套管组分别为(44.0±6.9)、(64.1±5.2)及(80.0±6.0)min。在并发症发生方面,32只腹部缝合组中6只发生术中出血,其中1只因为动脉内膜损伤出血,5只为血管开放后出血;6只小鼠发生输尿管并发症,包括输尿管膀胱吻合口狭窄、坏死以及肾盂积水;2只小鼠术后发生腹腔感染。腹部套管组未发生术中出血,但6只出现动脉轻度狭窄,5只静脉狭窄,4只动脉损伤,4只动脉血栓,2只输尿管并发症,没有小鼠在术后发生感染。在颈部套管组中,13只小鼠均未发生术中出血、动脉内膜损伤、动脉/静脉狭窄以及血栓,5只发生输尿管并发症,包括输尿管坏死和感染,是颈部套管组最主要的并发症。3组小鼠在移植后7 d肾功能保持稳定;苏木精-伊红和过碘酸�Objective:The mouse kidney transplantation model presents challenges in terms of surgical difficulty and low success rate,making it difficult to master.This study aims to provide a crucial model for transplantation immunology research by modifying and developing novel techniques for mouse kidney transplantation.Methods:A total of 57 pairs of mice were used to establish and compare the modified and innovative surgical techniques for mouse kidney transplantation.Three different surgical models were established,including the abdominal suture technique for orthotopic kidney transplantation,the abdominal cuff technique for orthotopic kidney transplantation,and the cervical cuff technique for ectopic kidney transplantation.BALB/c or C57BL/6 male mice,aged 8 to 12 weeks and weighed 20 to 25 g with specified pathogen free-grade were served as the donor mice or the recipient mice.The surgical technique characteristics,key surgical times,complications,and pathological examination in the early postoperative period were summarized and compared.Results:Three different surgical models of mouse kidney transplantation were successfully established.The comparison of warm ischemic time for the 3 groups of mice showed no statistical significance(P=0.5104).The abdominal suture group had the shortest total operation time of the donor compared with the abdominal cuff group and the cervical cuff group[(18.3±3.6)min vs(26.2±4.7)min and(22.8±2.5)min;both P<0.0001].There was a significant difference in cold ischemia time among the 3 groups(all P<0.0001),with(60.8±4.1)min in the cervical cuff group,(43.3±5.0)min in the abdominal suture group,and(88.8±6.7)min in the abdominal cuff group.Due to different anastomosis methods,the cervical cuff group had the shortest time[(17.6±2.7)min],whereas the abdominal cuff group had the longest time[(38.8±5.4)min].The total operation time for the recipients showed significant differences(P<0.0001),with the abdominal suture group having the shortest time[(44.0±6.9)min],followed by the cervical cu

关 键 词：小鼠 肾移植 套管法 缝合法 

分 类 号：R699.2[医药卫生—泌尿科学] R-332[医药卫生—外科学]