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Proteomic Analysis of Protective Effects of Polysaccharides from Salvia miltiorrhiza Against Immunological Liver Injury in Mice

机译:丹参多糖对小鼠免疫性肝损伤保护作用的蛋白质组学分析

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摘要

This study was designed to investigate mechanisms of the protective effects of Salvia miltiorrhiza polysaccharide (SMPS) against lipopolysaccharide (LPS)-induced immunological liver injury (ILI) in Bacille Calmette-Guerin (BCG)-primed mice. Two-dimensional difference gel electrophoresis (2D-DIGE) and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) analysis showed that three proteins are down-regulated and six proteins are up-regulated by SMPS. SMPS reduces the degree of liver injury by up-regulating the enzymes of the citric acid cycle, namely malate dehydrogenase (MDH) and 2-oxoglutarate dehydrogenase complex. LPS significantly increases nuclear factor kappa B (NF-kappa B) activation, inducible nitric oxide synthase (iNOS) expression and MDA level in BCG primed mice liver, whereas SMPS treatment protects against the immunological liver injury through inhibition of the NF-kappa B activation by up-regulation of PRDX6 and the subsequent attenuation of lipid peroxidation, iNOS expression and inflammation.
机译:这项研究旨在调查丹参丹参多糖(SMPS)对脂多糖(LPS)诱导的免疫性肝损伤(ILI)Bacille Calmette-Guerin(BCG)致敏小鼠的保护作用机制。二维差异凝胶电泳(2D-DIGE)和基质辅助激光解吸/电离飞行时间质谱(MALDI-TOF MS)分析显示SMPS下调了三种蛋白质,上调了六种蛋白质。 SMPS通过上调柠檬酸循环酶,即苹果酸脱氢酶(MDH)和2-氧戊二酸脱氢酶复合物,降低了肝损伤的程度。 LPS可以显着增加BCG引发的小鼠肝脏中的核因子κB(NF-κB)激活,诱导型一氧化氮合酶(iNOS)表达和MDA水平,而SMPS治疗可通过抑制NF-κB激活来保护免疫肝损伤通过上调PRDX6以及随后减弱脂质过氧化,iNOS表达和炎症。

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