当前位置: X-MOL 学术Transpl. Immunol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Consideration of IL-2, IFN-γ and IL-4 expression and methylation levels in CD4+ T cells as a predictor of rejection in kidney transplant
Transplant Immunology ( IF 1.5 ) Pub Date : 2021-05-24 , DOI: 10.1016/j.trim.2021.101414
Mustafa Soyoz 1 , Melek Pehlivan 2 , Erhan Tatar 3 , Burcu Cerci 1 , Hatice Ilayhan Karahan Coven 1 , Tulay Kilicaslan Ayna 1
Affiliation  

Kidney transplantation is the certain treatment for the end-stage-kidney disease patients. However after transplantation, allograft rejection or graft dysfunction are serious problems which the patients can be encountered. In several studies new biomarkers to predict rejection episodes tried to be evaluated and cytokines are thought to be one of these biomarkers. Additionally, epigenetic regulation of the cytokine genes can be an opportunity to detect the graft survival or dysfunction that lead to rejection. In this study, we aimed to detect the expression levels and methylation profile of cytokines IL-2, IL-4 and IFN-γ to follow the clinical situation of the patients. 25 kidney transplant patients were included in our study group and peripheral blood samples were collected before and 6 months after transplantation. CD4+ T cells were separated by using magnetic separation system and expression levels are detected by qPCR while methylation profile analysis was performed by pyrosequencing. According to our study we noticed that all of the patients with allograft rejection have increased expression levels of IFN-γ. When methylation profile of the CpGs in the promotor region of IFN-γ is evaluated, +128CpG was found as methylated when compared with +122. In conclusion, epigenetic mechanisms can effect several processed in renal transplantation and further studies with higher numbers of patients are needed to detect new biomarkers for prediction of allograft rejection.



中文翻译:

考虑 CD4+ T 细胞中 IL-2、IFN-γ 和 IL-4 的表达和甲基化水平作为肾移植排斥反应的预测因子

肾移植是终末期肾病患者的必然治疗方法。然而移植后,移植物排斥或移植物功能障碍是患者可能遇到的严重问题。在几项研究中,试图评估预测排斥事件的新生物标志物,细胞因子被认为是这些生物标志物之一。此外,细胞因子基因的表观遗传调控可能是检测导致排斥的移植物存活或功能障碍的机会。在本研究中,我们旨在检测细胞因子 IL-2、IL-4 和 IFN-γ 的表达水平和甲基化谱,以跟踪患者的临床情况。我们的研究组包括 25 名肾移植患者,并在移植前和移植后 6 个月收集外周血样本。使用磁分离系统分离CD4+ T细胞,并通过qPCR检测表达水平,同时通过焦磷酸测序进行甲基化谱分析。根据我们的研究,我们注意到所有同种异体移植排斥的患者的 IFN-γ 表达水平增加。当评估 IFN-γ 启动子区域中 CpG 的甲基化谱时,发现 +128CpG 与 +122 相比是甲基化的。总之,表观遗传机制可以影响肾移植中的几个过程,需要对更多患者进行进一步研究,以检测用于预测同种异体移植排斥的新生物标志物。根据我们的研究,我们注意到所有同种异体移植排斥的患者的 IFN-γ 表达水平增加。当评估 IFN-γ 启动子区域中 CpG 的甲基化谱时,发现 +128CpG 与 +122 相比是甲基化的。总之,表观遗传机制可以影响肾移植中的几个过程,需要对更多患者进行进一步研究,以检测用于预测同种异体移植排斥的新生物标志物。根据我们的研究,我们注意到所有同种异体移植排斥的患者的 IFN-γ 表达水平增加。当评估 IFN-γ 启动子区域中 CpG 的甲基化谱时,发现 +128CpG 与 +122 相比是甲基化的。总之,表观遗传机制可以影响肾移植中的几个过程,需要对更多患者进行进一步研究,以检测用于预测同种异体移植排斥的新生物标志物。

更新日期:2021-06-05
down
wechat
bug