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通过CD23介导信号进行脏-心脏交谈促进心脏重塑

Yufan Feng¹, Yang Yang¹, Hongqin Yang¹

¹Department of Pathophysiology, Chinese Academy of Medical Sciences, School of Basic Medicine, Institute of Basic Medicine, Peking Union Medical College, Beijing (Y.F., Y.Y., H.Y., J.S., J.Z., Q.C., Yingge Zhang, Yarong Zhang, Z.L., Y.X., J.C., C.G., H.Z., J.W.).

Circulation research

|May 20, 2025

概括

这项研究揭示了心脏中提升的乳转化蛋白 (Ltf) 调节ADAM10,降低CD23和增加IgE在病理性心脏重塑中. 这个Ltf-ADAM10-CD23轴为心脏病提供了新的治疗点.

科学领域:

免疫学免疫学免疫学
心脏病学心脏病学
分子生物学分子生物学

背景情况:

免疫球蛋白E (IgE) 水平升高与病态心脏重塑有关.
在这种情况下,IgE的确切来源和生产机制在很大程度上是未知的.

研究的目的:

调查IgE的来源及其在病态心脏改造过程中产生的潜在机制.
探索IgE受体CD23的作用,并确定参与心交叉交谈的关键信号分子.

主要方法:

流细胞测量用于分析各种组织中的IgE产生B细胞,这些细胞来自于经过横向大动脉收缩 (TAC) 诱导的心脏重塑的小鼠.
使用了对CD23的基因操纵 (功能丧失和功能增加) 和使用CD23中和抗体.
蛋白质组分析和ELISA测试确定了器官交叉谈话调节IgE生产的关键分子参与者.

主要成果:

在TAC小鼠中,脏IgE产生细胞和IgE水平显著增加,与CD23表达率下降相关.
CD23的损失加剧了心脏重塑和IgE合成,而CD23的过度表达减轻了这些影响.
从心脏中释放的乳酸转化蛋白 (Ltf) 被确定可以调节ADAM10,导致CD23分裂和增加IgE生产. Ltf水平与心脏重塑严重程度以及小鼠和人类心力衰竭患者的IgE水平相关.

结论:

乳转素-ADAM10-CD23轴对于通过心沟通调节IgE生产至关重要.
这个轴代表了管理IgE介导的病态心脏重塑的潜在治疗目标.

关键词:

心血管疾病心血管疾病心脏衰竭是因为心脏衰竭.肌细胞,心脏细胞.血细胞是血细胞的组成部分.腹腔的重塑腹腔的重塑

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