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Emergence of T cell immunosenescence in diabetic chronic kidney disease
Immunity & Ageing ( IF 7.9 ) Pub Date : 2020-10-20 , DOI: 10.1186/s12979-020-00200-1
Yen-Ling Chiu , Wan-Chuan Tsai , Ruo-Wei Hung , I-Yu Chen , Kai-Hsiang Shu , Szu-Yu Pan , Feng-Jung Yang , Te-Tien Ting , Ju-Ying Jiang , Yu-Sen Peng , Yi-Fang Chuang

Type 2 diabetes is an important challenge given the worldwide epidemic and is the most important cause of end-stage renal disease (ESRD) in developed countries. It is known that patients with ESRD and advanced renal failure suffer from immunosenescence and premature T cell aging, but whether such changes develop in patients with less severe chronic kidney disease (CKD) is unclear. 523 adult patients with type 2 diabetes were recruited for this study. Demographic data and clinical information were obtained from medical chart review. Immunosenescence, or aging of the immune system was assessed by staining freshly-obtained peripheral blood with immunophenotyping panels and analyzing cells using multicolor flow cytometry. Consistent with previously observed in the general population, both T and monocyte immunosenescence in diabetic patients positively correlate with age. When compared to diabetic patients with preserved renal function (estimated glomerular filtration rate > 60 ml/min), patients with impaired renal function exhibit a significant decrease of total CD3+ and CD4+ T cells, but not CD8+ T cell and monocyte numbers. Immunosenescence was observed in patients with CKD stage 3 and in patients with more severe renal failure, especially of CD8+ T cells. However, immunosenescence was not associated with level of proteinuria level or glucose control. In age, sex and glucose level-adjusted regression models, stage 3 CKD patients exhibited significantly elevated percentages of CD28−, CD127−, and CD57+ cells among CD8+ T cells when compared to patients with preserved renal function. In contrast, no change was detected in monocyte subpopulations as renal function declined. In addition, higher body mass index (BMI) is associated with enhanced immunosenescence irrespective of CKD status. The extent of immunosenescence is not significantly associated with proteinuria or glucose control in type 2 diabetic patients. T cells, especially the CD8+ subsets, exhibit aggravated characteristics of immunosenescence during renal function decline as early as stage 3 CKD. In addition, inflammation increases since stage 3 CKD and higher BMI drives the accumulation of CD8+CD57+ T cells. Our study indicates that therapeutic approaches such as weight loss may be used to prevent the emergence of immunosenescence in diabetes before stage 3 CKD.

中文翻译:

糖尿病慢性肾病中 T 细胞免疫衰老的出现

鉴于全球流行病,2 型糖尿病是一项重要挑战,并且是发达国家终末期肾病 (ESRD) 的最重要原因。众所周知,患有 ESRD 和晚期肾功能衰竭的患者会出现免疫衰老和 T 细胞过早老化,但这种变化是否会在不太严重的慢性肾病 (CKD) 患者中发生尚不清楚。本研究招募了 523 名成年 2 型糖尿病患者。人口统计数据和临床信息是从病历审查中获得的。免疫衰老或免疫系统老化是通过用免疫表型组对新鲜获得的外周血进行染色和使用多色流式细胞仪分析细胞来评估的。与之前在一般人群中观察到的一致,糖尿病患者的 T 细胞和单核细胞免疫衰老均与年龄呈正相关。与保留肾功能的糖尿病患者(估计肾小球滤过率 > 60 ml/min)相比,肾功能受损患者的总 CD3+ 和 CD4+ T 细胞显着减少,但 CD8+ T 细胞和单核细胞数量没有显着减少。在 CKD 3 期患者和更严重的肾功能衰竭患者中观察到免疫衰老,尤其是 CD8+ T 细胞。然而,免疫衰老与蛋白尿水平或血糖控制水平无关。在年龄、性别和葡萄糖水平调整的回归模型中,与肾功能保留的患者相比,3 期 CKD 患者的 CD8+ T 细胞中 CD28-、CD127- 和 CD57+ 细胞的百分比显着升高。相比之下,随着肾功能下降,单核细胞亚群未检测到变化。此外,无论 CKD 状态如何,较高的体重指数 (BMI) 都与增强的免疫衰老相关。免疫衰老的程度与 2 型糖尿病患者的蛋白尿或血糖控制没有显着相关性。T 细胞,尤其是 CD8+ 亚群,早在 3 期 CKD 时就表现出在肾功能下降期间免疫衰老的加重特征。此外,自第 3 期 CKD 和更高的 BMI 驱动 CD8+CD57+ T 细胞积累以来,炎症增加。我们的研究表明,减肥等治疗方法可用于预防糖尿病患者在 3 期 CKD 之前出现免疫衰老。无论 CKD 状态如何,较高的体重指数 (BMI) 都与增强的免疫衰老相关。免疫衰老的程度与 2 型糖尿病患者的蛋白尿或血糖控制没有显着相关性。T 细胞,尤其是 CD8+ 亚群,早在 3 期 CKD 时就表现出在肾功能下降期间免疫衰老的加重特征。此外,自第 3 期 CKD 和更高的 BMI 驱动 CD8+CD57+ T 细胞积累以来,炎症增加。我们的研究表明,减肥等治疗方法可用于预防糖尿病患者在 3 期 CKD 之前出现免疫衰老。无论 CKD 状态如何,较高的体重指数 (BMI) 都与增强的免疫衰老相关。免疫衰老的程度与 2 型糖尿病患者的蛋白尿或血糖控制没有显着相关性。T 细胞,尤其是 CD8+ 亚群,早在 3 期 CKD 时就表现出在肾功能下降期间免疫衰老的加重特征。此外,自第 3 期 CKD 和更高的 BMI 驱动 CD8+CD57+ T 细胞积累以来,炎症增加。我们的研究表明,减肥等治疗方法可用于预防糖尿病患者在 3 期 CKD 之前出现免疫衰老。尤其是 CD8+ 亚群,早在 3 期 CKD 时,在肾功能下降期间表现出免疫衰老的加重特征。此外,自第 3 期 CKD 和更高的 BMI 驱动 CD8+CD57+ T 细胞积累以来,炎症增加。我们的研究表明,减肥等治疗方法可用于预防糖尿病患者在 3 期 CKD 之前出现免疫衰老。尤其是 CD8+ 亚群,早在 3 期 CKD 时,在肾功能下降期间表现出免疫衰老的加重特征。此外,自第 3 期 CKD 和更高的 BMI 驱动 CD8+CD57+ T 细胞积累以来,炎症增加。我们的研究表明,减肥等治疗方法可用于预防糖尿病患者在 3 期 CKD 之前出现免疫衰老。
更新日期:2020-10-20
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