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肾移植后早期抗体介导排斥反应的临床特点与治疗四例报道重点
3 were not diagnosed and treated in time and graft lOSS developed.Case 2 and
functionally recovered after combined treatment of plasmapheresis,IVIG and bortezomib.Conclusion
severe
on
the
postoperative
day 21.(3)The received
haring early recipient pancreas diagnosed transplantation 1 year after kidney transplantation.Eight months after pancreas transplantation,DsA
on
1
was positive,anti A11 M咂1 was 3059,and DSA 11 was negative showed mild ischemia reperfusion
case
the postoperative day 13.Biopsy
injury
in transplanted kidney
rejection.Serum
on
creatinine was
elevated
on
the postoperative day 8;PRA testing showed that the positive rate of class工and 11 was was positive,and anti DRl6 M限1 was 15 170
78.9%。DSA工为阳性,抗A11 MFI为3
059,DSA
Ⅱ为阴性。术后第20天,受者尿量达到680 ml。
术后第21天行移植肾穿刺活检,结果显示轻度缺血 再灌注损伤表现。 病例3,女性,诊断为早期重度慢性AMR。受 者因I型糖尿病、尿毒症接受肾移植,移植肾功能恢 复并维持良好;移植1年后接受胰腺移植(膀胱引 流),术后单用阿卡波糖,血糖可以维持在正常范围。 胰腺移植的供、受者HLA抗原完全错配,受者PRA I类为6.1%,Ⅱ类为5.8%;术后3个月复查尿淀粉 酶为8
stage
Objective
antibody-mediated r卤ection after renal
transplantation.Method
case case
AMR
of renal transplantation.and 1
of pancreas transplantation after renal transplantation 1 was
通信作者:宫念樵,Email:nqgong@tih.tjmu.edu.cn
万方数据
中华器官移植杂志2016年4月第37卷第4期Chin JOrganTransplant,April
was 1 503.(4)The
case
2016,V01.37,No.4
4 was
diagnosed
as
having early mixed
were retrospectively analyzed.(1)The
diagnosed
asBiblioteka having earlysevere
acute
AMR
Serum creatinine was increased,urine volume rapidly reduced,the blood flow of transplanted kidney reduced
Organ n诅nsplantation,Tongji Hospital,Tonedi Medical College,Huazhong University
Science and Technology,Key Laboratory
and肪e Ministry
[Abstract]
of 3
cases
0
[Key words]Transplantation;Antibody
reaction antibody Ftmd program:Special
rejection;Donor
specific antibody;Panel
Project of Ministry
of Health(201302009);National Natural
断为早期重度急性A瑚R,术后第8天开始出现血肌酐水平持续上升,且尿量迅速减少,移植肾血流减
少;术后第12天群体反应性抗体(PRA)I类为74.6%,1I类为2.7%。术后第14天行移植肾穿刺活 检显示移植肾广泛缺血和局部出血,同时检测琰、A结果显示抗1362平均荧光强度(MFI)为6
800。 I
(2)病例2诊断为早期轻度急性AMR,术后第13天复查PRA工类为65.6%,11类为78.9%,DSA
一、病例资料
74.6%,Ⅱ类为2.7%。术后第14天,移植肾穿刺活检 结果显示,移植肾广泛缺血和局部出血(因坏死过多, 无法行CAd染色),同时检测Ⅸ、A结果显示,抗1362
MFI为6
800。
病例2,女性,诊断为早期轻度急性AMR。既 往PRA工类最高升至82.8%,Ⅱ类升至15.5%。移 植前PRA I类降至13.3%,Ⅱ类降至1.7%,淋巴 细胞毒交叉配合试验为阴性,接受肾移植。使用
acute
3%and 70%respectively,DsA
1 and
case
the
postoperative
case
day
14;transplanted kidney biopsy showed
mixed
rejection
on
the postoperative day 16.Result
4
Case were
Science
Foundation of China(81570678,81200498,81001323)
随着临床技术水平和免疫抑制药物的不断发 展,肾移植术后移植肾短期存活率得到显著提高,但 是长期存活率并无明显改善。2012年Sellares等[1] 的一项研究纳人315例肾移植受者,平均随访31.4 个月,有56例受者出现移植肾功能丧失,这56例受 者中有64%的移植肾功能丧失与抗体介导的排斥 反应(AMR)或疑似与抗体介导排斥反应有关;该项 研究表明,AMR是导致移植肾功能丧失的主要原 因[1]。移植术后受者体内针对供者产生的抗体称为 供者特异性抗体(DSA),2013年美国移植大会报道 的1项研究,评估了487例肾移植受者DSA水平与 肾移植术后1年内发生急性AMR的相对风险,结 果显示DSA>1000平均荧光强度(MFI)的受者发 生急性AMR的风险增加了3.7倍。另有文献报 道,DSA阳性的移植受者中AMR发生率比DSA 阴性者明显增高[2]。由于AMR缺乏简单易行的特 异性检测指标,临床诊断较困难,治疗方案多种多 样,治疗效果并不理想。因此,我们通过回顾分析3 例肾移植和1例肾移植术后胰腺移植后AMR病例 的临床资料,探讨AMR的临床特点及治疗对策。 临床资料
was
on
the postoperative day 8;the positive
rate
of panel reactive antibody(PRA)class I and 11
74.6%,and 2.7%respectively on the postoperative day 12.Biopsy showed widely ischemia and local bleeding in transplanted kidney and DSA showed anti-1362 mean fluorescence intensity(M口I)
Diagnosis of antibody-mediated
rejection
is based
on
biopsy.Early diagnosis,early treatment
and
combined therapy mediated
transplant graft dysfunction,positive DSA and graft can improve the curative rate of AMR
不及时导致移植物功能丧失;病例2和病例4在诊断AMR后,使用血浆置换、丙种球蛋白和硼替 佐米等联合治疗后移植肾功能恢复正常。结论AMR的诊断需要结合移植物功能下降、DSA阳
性以及移植物活检病理表现进行综合判断。早期诊断、早期治疗以及联合治疗可以提高AMR的
治愈率。 【关键词】移植;体液性排斥反应;供体特异性抗体;群体反应抗体 基金项目:国家卫生计生委公益性行业科研专项(201302009);国家自然科学基金(81570678,
as
3
was
chronic
AMR.and the
for pancreas donor was detectable,anti A2 M旧1 was 7514,anti 1346 MFl was 3 159 and anti DQ7 MFI
1301:10.3760/cma.j,issn.0254-1785.2016.04.006 作者单位:430030武汉,华中科技大学同济医学院附属同济医院器官移植研究所教育部/卫生部器官移植重点实验室
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肾移植后早期抗体介导排斥反应的 临床特点与治疗四例报道
卢峡朱兰
【摘要】
明长生
陈知水
陈忠华
宫念樵
目的探讨肾移植术后早期抗体介导的排斥反应(AMR)的临床特点和治疗。方法