摘要
目的:建立一种确实可行的诱导肾移植免疫耐受的动物模型,以探讨肾移植后的免疫耐受情况。方法:采用供体SD大鼠脾细胞,经过处理后注入受体Wistar大鼠的门静脉内,同时进行肾移植,然后用环孢素治疗一周的方法。结果:实验组大鼠平均成活时间为722±32天,对照组为105±21天,实验组与对照组比较P<001。实验组在肾移植60天后,再用SD大鼠和Lewis大鼠的皮肤进行移植,发现SD大鼠的皮肤不被排斥,Lewis大鼠的皮肤出现排斥。结论:门静脉内注射供体脾细胞可诱导肾移植免疫耐受,并且这种耐受具有特异性。
OBJECTIVE Tostudythemechanismofimmunetoleranceinrenalallografttransplantation. METHODOLOGY Ananimalmodelofspecificimmunetoleranceofrenalallograftwasestablished,withtheprocessedspleencellsofdonorDSratsinjectedintotheportalveinoftherecipientWilstarratssimultaneously.Aftertransplantation,cyclosporinAwasadministraedforoneweekintherecipients.SkingraftsofSDratsandLewisratsweretransplantedtoWilstarrats60daysafterrenalgrafttransplantation.Forthecontrolrats(n=10),normalsalinewereinjectedintotheportalvain. RESULTS Ascomparedtothatinthecontrolgroup,themediansurvivaloftheratsinexperimentalgroupwassignificantlyprolonged(722320daysvs.10521days,P<001).Asfortheresultofskingraftstransplantation,SDratsskingraftsurvivedsignificantlylongerthanLewisratsskingraft. CONCLUSION Intraportalinjectionofdonorspleencellscaninducespecifictolerancetorenalallograftrecipients.
出处
《肾脏病与透析肾移植杂志》
CAS
CSCD
1999年第3期223-225,共3页
Chinese Journal of Nephrology,Dialysis & Transplantation