Sikorska Dorota, Kamińska Dorota, Catar Rusan, Banasik Mirosław, Heidecke Harald, Schulze-Forster Kai, Korybalska Katarzyna, Rutkowski Rafał, Łuczak Joanna, Jabłecki Jerzy, Oko Andrzej, Daroszewski Przemysław, Kusztal Mariusz, Samborski Włodzimierz
Department of Rheumatology, Rehabilitation and Internal Medicine, Poznan University of Medical Sciences, 61-545 Poznan, Poland.
Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, 50-556 Wroclaw, Poland.
J Clin Med. 2022 Feb 4;11(3):833. doi: 10.3390/jcm11030833.
The role of anti-HLA antibodies in transplant rejection is well-known but the injury associated with non-HLA antibodies is now widely discussed. The aim of our study was to investigate a role of non-HLA antibodies in hand allografts rejection. The study was performed on six patients after hand transplantation. The control group consisted of: 12 kidney transplant recipients and 12 healthy volunteers. The following non-HLA antibodies were tested: antibody against angiotensin II type 1 receptor (AT1R-Ab), antibody against endothelin-1 type-A-receptor (ETAR-Ab), antibody against protease-activated receptor 1 (PAR-1-Ab) and anti-VEGF-A antibody (VEGF-A-Ab). Chosen proinflammatory cytokines (Il-1, IL-6, IFNγ) were used to evaluate the post-transplant humoral response. Laboratory markers of endothelial activation (VEGF, sICAM, vWF) were used to assess potential vasculopathy. The patient with the highest number of acute rejections had both positive non-HLA antibodies: AT1R-Ab and ETAR-Ab. The same patient had the highest VEGF-A-Ab and very high PAR1-Ab. All patients after hand transplantation had high levels of laboratory markers of endothelial activation. The existence of non-HLA antibodies together with multiple acute rejections observed in patient after hand transplantation should stimulate to look for potential role of non-HLA antibodies in humoral injury in vascular composite allotransplantation.
抗人白细胞抗原(HLA)抗体在移植排斥反应中的作用已广为人知,但与非HLA抗体相关的损伤目前也受到广泛讨论。我们研究的目的是调查非HLA抗体在手部同种异体移植排斥反应中的作用。该研究对6例手部移植术后患者进行。对照组包括:12例肾移植受者和12名健康志愿者。检测了以下非HLA抗体:抗血管紧张素II 1型受体抗体(AT1R-Ab)、抗内皮素-1 A型受体抗体(ETAR-Ab)、抗蛋白酶激活受体1抗体(PAR-1-Ab)和抗血管内皮生长因子A抗体(VEGF-A-Ab)。选用促炎细胞因子(Il-1、IL-6、IFNγ)来评估移植后的体液反应。使用内皮激活的实验室标志物(VEGF、sICAM、vWF)来评估潜在的血管病变。急性排斥反应次数最多的患者同时具有阳性非HLA抗体:AT1R-Ab和ETAR-Ab。同一患者的VEGF-A-Ab水平最高,PAR1-Ab水平也非常高。所有手部移植术后患者的内皮激活实验室标志物水平都很高。手部移植术后患者中观察到的非HLA抗体的存在以及多次急性排斥反应,应促使人们去探寻非HLA抗体在血管复合组织异体移植体液损伤中的潜在作用。