首页|基于TNF-α/NF-κB通路探讨四君子汤对快速衰老型小鼠海马神经元炎症因子调节自噬蛋白的作用机制研究

基于TNF-α/NF-κB通路探讨四君子汤对快速衰老型小鼠海马神经元炎症因子调节自噬蛋白的作用机制研究

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目的 探讨四君子汤(Sijunzi decoction,SJZD)对快速衰老型(senescence-accelerated mouse prone 8,SAMP8)小鼠海马组织炎症因子、自噬蛋白表达的影响及作用机制。方法 将SAMR1小鼠作为对照组、32只SAMP8小鼠分为模型组、多奈哌齐组(Donepezil)、SJZD低、高剂量治疗组。采用Y字迷宫实验检测小鼠记忆功能的变化;免疫组化法检测NF-κB蛋白表达变化;ELISA法检测肿瘤坏死因子(TNF-α)、白细胞介素-1β(IL-1β)、白细胞介素-6(IL-6)含量;Western blot法检测海马组织Aβ蛋白、caspse-1、beclin-1、LC3-Ⅱ蛋白表达。结果 与对照组比较,模型组小鼠总进臂次数减少、交替次数减少,TNF-α、IL-1β、IL-6含量升高,Aβ蛋白、caspse-1蛋白表达上调,beclin-1蛋白及LC3-Ⅱ蛋白表达下调;Donepezil与模型组比较,总进臂次数增加,交替次数增加,IL-6含量减少,Aβ蛋白表达下调。SJZD低剂量组和高剂量组,与模型组比较,总进臂次数增加,交替次数增加;TNF-α、IL-1β、IL-6、Aβ蛋白、caspase-1含量降低;beclin-1、LC3-Ⅱ蛋白表达上调。结论 四君子汤治疗阿尔茨海默病可能与纠正中枢海马相关炎症因子及自噬功能失调有关。
Effects of Sijunzi decoction on the regulation of autophagy proteins by inflammatory factors based on TNF-α/NF-κB in hippocampal neurons of SAMP8 mice
This study was designed to investigate the effect of Sijunzi decoction(SJZD)on the expression of inflammatory factors and autophagic proteins in the hippocampus of senescence-accelerated mouse prone 8(SAMP8)mice and its mechanism.SAMR1 mice were used as control group,and 32 SAMP8 mice were divided into model group,donepezil group,SJZD low and SJZD high dose treatment groups.Y-maze experiment was performed to detect changes in mouse memory function;the expression of NF-κB was detected by immunohistochemistry;the levels of TNF-α,IL-1β,IL-6 were detected by ELISA;the expression of A[3,caspse-1,beclin-1 and LC3-Ⅱproteins in hippocampal tissue were detected by Western blotting.Compared with the control group,the model group mice showed a decrease in total number of entries and alternations,an elevation in the levels of TNF-α,IL-1β,IL-6,Aβ protein and caspse-1 protein,and downregulation in the expression of beclin-1 and LC3-Ⅱ proteins.Both donepezil and SJZD(low-dose group and high-dose group)can reverse these changes in model mice.In conclusion,the mechanism of SJZD in treating Alzheimer's disease may relate to the correction of central hippocampal inflammatory factors and autophagy dysfunction.

Sijunzi decoctionAlzheimer's diseaseInflammatory factorsAutophagy

刘旭东、王松楠、马丹、单德红、任路

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110847 沈阳,辽宁中医药大学中西医结合学院生理心理教研室

四君子汤 阿尔茨海默 炎症因子 自噬

2024

免疫学杂志
第三军医大学,中国免疫学会

免疫学杂志

CSTPCD
影响因子:0.704
ISSN:1000-8861
年,卷(期):2024.40(1)
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