当前位置: X-MOL 学术FEBS Open Bio › 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.)
T follicular helper cells are elevated in a rat model of autoimmune myocarditis.
FEBS Open Bio ( IF 2.8 ) Pub Date : 2020-06-11 , DOI: 10.1002/2211-5463.12894
Qi Xue 1 , Yuan Ma 1 , Lihong Wang 1 , Hong Shao 1
Affiliation  

Myocarditis is an inflammatory disease of the myocardium that is associated with immune dysfunction. Earlier studies have suggested that T helper 1/2 cell imbalance plays an important role in the development of myocarditis, but the role of T follicular helper (Tfh) cells in the development of autoimmune myocarditis has not previously been reported. Here, we investigated this involvement by using a rat model of experimental autoimmune myocarditis (EAM). Inflammatory cell infiltration, myocardial structure destruction and tissue necrosis were observed in EAM myocardial tissues, and the percentages of CD4+CXCR5+ Tfh cells and CD19+ B cells were both significantly higher in spleen and myocardial tissues of the EAM model as compared with the control group. Furthermore, the expression levels of interleukin‐21, CXCL13 and myosin antibody were significantly higher in the serum of rats with EAM compared with the control group on days 14 and 35 after immunization. Fourteen or 35 days after immunization, the expression levels of interleukin‐21 and CXCL13 were both significantly higher in myocardial tissues of rats with EAM as compared with the control group. Our findings suggest that Tfh cell balance is disrupted during the pathological process of autoimmune myocarditis.

中文翻译:

在自身免疫性心肌炎的大鼠模型中,T 滤泡辅助细胞升高。

心肌炎是一种与免疫功能障碍有关的心肌炎性疾病。早期的研究表明,T 辅助 1/2 细胞失衡在心肌炎的发展中起着重要作用,但滤泡辅助 (Tfh) 细胞在自身免疫性心肌炎的发展中的作用以前没有报道。在这里,我们通过使用实验性自身免疫性心肌炎 (EAM) 的大鼠模型来研究这种参与。在EAM心肌组织中观察到炎症细胞浸润、心肌结构破坏和组织坏死,CD4 + CXCR5 + Tfh细胞和CD19 +的百分比与对照组相比,EAM模型的脾脏和心肌组织中的B细胞均显着升高。此外,与对照组相比,在免疫后第 14 天和 35 天,EAM 大鼠血清中白细胞介素 21、CXCL13 和肌球蛋白抗体的表达水平显着升高。免疫后14天或35天,与对照组相比,EAM大鼠心肌组织中IL-21和CXCL13的表达水平均显着升高。我们的研究结果表明,在自身免疫性心肌炎的病理过程中,Tfh 细胞平衡被破坏。
更新日期:2020-06-11
down
wechat
bug