Department of Cardiology, Huashan Hospital Fudan University, No.12 Urumqi Middle Road, Shanghai 200040, China.
Comput Intell Neurosci. 2022 Apr 22;2022:2685648. doi: 10.1155/2022/2685648. eCollection 2022.
In this research, we will explore the role and modulation of mitochondrial dynamics in diabetes vascular remodeling. Only a few cell types express the pattern recognition receptor, also known as the AGE receptor (RAGE). However, it is triggered in almost all of the cells that have been investigated thus far by events that are known to cause inflammation. Here, Type 2 diabetes was studied in both cellular and animal models. Elevated Receptor for advanced glycation end products (RAGE), phosphorylated JAK2 (p-JAK2), phosphorylated STAT3 (p-STAT3), transient receptor potential ion channels (TRPM), and phosphorylated dynamin-related protein 1 (p-DRP1) were observed in the context of diabetes. In addition, we found that inhibition of RAGE was followed by a remarkable decrease in the expression of the above proteins. It has also been demonstrated by western blotting and immunofluorescence results in vivo and in vitro. Suppressing STAT3 and DRP1 phosphorylation produced effects similar to those of RAGE inhibition on the proliferation, cell cycle, migration, invasion, and expression of TRPM in VSMCs and vascular tissues obtained from diabetic animals. These findings indicate that RAGE regulates vascular remodeling via mitochondrial dynamics through modulating the JAK2/STAT3 axis in diabetes. The findings could be crucial in gaining a better understanding of diabetes-related vascular remodeling. It also contributes to a better cytopathological understanding of diabetic vascular disease and provides a theoretical foundation for novel targets that aid in the prevention and treatment of diabetes-related cardiovascular problems.
在这项研究中,我们将探讨线粒体动力学在糖尿病血管重塑中的作用和调节。只有少数几种细胞类型表达模式识别受体,也称为 AGE 受体 (RAGE)。然而,迄今为止,几乎所有研究过的细胞都被已知会引起炎症的事件触发了这种受体。在这里,我们在细胞和动物模型中研究了 2 型糖尿病。在糖尿病的背景下,观察到了高受体糖基化终产物 (RAGE)、磷酸化 JAK2 (p-JAK2)、磷酸化 STAT3 (p-STAT3)、瞬时受体电位离子通道 (TRPM) 和磷酸化动力相关蛋白 1 (p-DRP1)。此外,我们发现抑制 RAGE 后,上述蛋白的表达显著降低。体内和体外的 Western 印迹和免疫荧光结果也证实了这一点。抑制 STAT3 和 DRP1 磷酸化对糖尿病动物来源的 VSMCs 和血管组织中 TRPM 的增殖、细胞周期、迁移、侵袭和表达产生的影响与 RAGE 抑制相似。这些发现表明,RAGE 通过调节糖尿病中 JAK2/STAT3 轴来调节线粒体动力学,从而调节血管重塑。这些发现对于更好地理解糖尿病相关的血管重塑至关重要。它还有助于更好地理解糖尿病血管疾病的细胞病理学,并为预防和治疗糖尿病相关的心血管问题提供了新的理论基础。