The development of salt-sensitive hypertension regulated by PSGL-1 gene in mice.

The development of salt-sensitive hypertension regulated by PSGL-1 gene in mice.
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PSGL-1基因调控小鼠盐敏感性高血压的发生发展

DOI:
10.1186/s13578-018-0218-2
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发表时间:
2018
期刊:
影响因子:
7.5
通讯作者:
Jiang X
Jiang X
中科院分区:
生物学2区
文献类型:
--
作者:
Yang Y;Liu X;Liu Y;Fu H;Gao Y;Liu X;Jiang X

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慢性炎症参与盐敏感性高血压和其他心血管疾病的发展。PSGL-1在炎症反应中起重要作用。在这项研究中,我们使用喂食高盐饮食的PSGL-1-/-和PSGL-1+/+小鼠来测量血压、炎症反应和血管损伤。我们发现,在PSGL-1+/+小鼠中,高盐饮食导致高血压,血清炎性细胞因子IL-6、IL-1β和TNF α表达增加,血管损伤标志物MCP-1、ET-1和VWF表达增加,肾巨噬细胞和T细胞浸润,内皮依赖性乙酰胆碱血管舒张功能障碍。然而,在PSGL-1−/−小鼠中没有发现这种影响。PSGL-1的缺陷阻止了高盐环境下外周血单个核细胞与内皮细胞粘附的增加。我们的研究结果表明PSGL-1通过血管炎症和损伤参与盐敏感性高血压的发展。高盐诱导的炎症反应可能是通过PSGL-1与P-选择素或/和E-选择素的结合,由白细胞和内皮细胞粘附而引发的。
Chronic inflammatory is involved in the development of salt-sensitive hypertension and other cardiovascular diseases. PSGL-1 plays an important role in the inflammatory response. In this study, we used PSGL-1−/− and PSGL-1+/+ mice fed with high salt diet to measure the blood pressure, inflammatory response and vascular injury. We found that, in PSGL-1+/+ mice, high salt diet resulted in high blood pressure with the increased expression of serum inflammatory cytokines IL-6, IL-1β and TNFɑ, vascular injury markers MCP-1, ET-1, and VWF, and renal macrophages and T cells infiltration, and endothelium-dependent acetylcholine vasodilation dysfunction. However, the influence was not found in PSGL-1−/− mice. The deficiency of PSGL-1 prevented the increased adhesion of peripheral blood mononuclear cells to endothelial cells by high salt environment. Our results indicate that PSGL-1 is involved in the development of salt-sensitive hypertension via vascular inflammation and injury. The high salt induced inflammation may be initiated by leukocytes and endothelial cells adhesion through PSGL-1 binding with P-selectin or/and E-selectin.
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