苯达利特通过调节核因子κB通路降低急性主动脉夹层并发肺损伤的发生率。
Bindarit reduces the incidence of acute aortic dissection complicated lung injury via modulating NF-κB pathway.
作者信息
Wu Zhiyong, Chang Jinxing, Ren Wei, Hu Zhipeng, Li Bowen, Liu Huagang
机构信息
Department of Cardiovascular Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 830054, P.R. China.
出版信息
Exp Ther Med. 2017 Sep;14(3):2613-2618. doi: 10.3892/etm.2017.4830. Epub 2017 Jul 25.
The pathogenesis of acute aortic dissection (AAD) complicated acute lung injury (ALI) is not currently well defined. At present, no effective animal model has been established for AAD complicated ALI, which hinders research and development of an appropriate treatment regimen for the concurrent conditions. The aim of the present study was to evaluate the therapeutic effects of bindarit (Bnd), an indazolic derivative, on the production of monocyte chemoattractant protein (MCP)-1 in angiotensin II (AngII)-induced complicated ALI in rats. An AAD complicated ALI rat model was established using aminopropionitrile (BAPN) and AngII. The pathological features of AAD complicated ALI were assessed via biochemical and histopathological evaluations. AngII-stimulated human pulmonary microvascular endothelial cells (hPMVECs) were used to assess the effects of Bnd on MCP-1 expression. Western blot analysis was performed to analyze the expression of proteins that may be associated with the process. AAD complicated ALI was established following BAPN and AngII interference, and a massive accumulation of macrophages was observed in the lung tissues of the study rats. Bnd was able to significantly attenuate the incidence of AAD complicated ALI (P<0.05), and significantly inhibit the accumulation of macrophages (P<0.05). The overexpression of MCP-1 induced by AngII in hPMVECs was significantly inhibited by Bnd (P<0.05), which may be associated with downregulation of the classical nuclear factor-κB pathway. Bnd was able to attenuate the incidence of AAD complicated ALI, and inhibit the accumulation of macrophages . These findings provide a basis for future applications of Bnd as part of a therapeutic treatment schedule for aortic dissection complicated lung injury.
急性主动脉夹层(AAD)并发急性肺损伤(ALI)的发病机制目前尚未完全明确。目前,尚未建立有效的AAD并发ALI动物模型,这阻碍了针对这两种并发疾病的合适治疗方案的研发。本研究的目的是评估吲唑衍生物宾达利(Bnd)对血管紧张素II(AngII)诱导的大鼠并发ALI中单核细胞趋化蛋白(MCP)-1产生的治疗效果。使用氨基丙腈(BAPN)和AngII建立AAD并发ALI大鼠模型。通过生化和组织病理学评估来评估AAD并发ALI的病理特征。使用AngII刺激的人肺微血管内皮细胞(hPMVECs)来评估Bnd对MCP-1表达的影响。进行蛋白质印迹分析以分析可能与该过程相关的蛋白质的表达。在BAPN和AngII干预后建立了AAD并发ALI,并且在研究大鼠的肺组织中观察到巨噬细胞大量积聚。Bnd能够显著降低AAD并发ALI的发生率(P<0.05),并显著抑制巨噬细胞的积聚(P<0.05)。Bnd显著抑制了AngII在hPMVECs中诱导的MCP-1的过表达(P<0.05),这可能与经典核因子-κB途径的下调有关。Bnd能够减轻AAD并发ALI的发生率,并抑制巨噬细胞的积聚。这些发现为未来将Bnd作为主动脉夹层并发肺损伤治疗方案的一部分应用提供了依据。