中国免疫学杂志
中國免疫學雜誌
중국면역학잡지
CHINESE JOURNAL OF IMMUNOLOGY
2015年
5期
620-624
,共5页
Tau蛋白%神经轴索%GSK3%实验性自身免疫性脑脊髓炎
Tau蛋白%神經軸索%GSK3%實驗性自身免疫性腦脊髓炎
Tau단백%신경축색%GSK3%실험성자신면역성뇌척수염
Tau protein%Axon%GSK3%Experimental autoimmune encephalomyelitis
目的:研究非磷酸化和磷酸化两种不同形式tau蛋白在实验性自身免疫性脑脊髓炎( EAE)小鼠脑组织轴索中不同时期的动态变化及脑组织中磷酸化tau蛋白与血清GSK3相关性。方法:将小鼠随机分为6组,分别为EAE急性期组、EAE瘫痪期组、EAE缓解期组、对照急性期组、对照瘫痪期组、对照缓解期组,每组12只。 EAE组用MOG35-55肽段免疫建造模型,对照组生理盐水处理。比较不同时期小鼠神经功能评分;采用HE染色法对比不同时期小鼠脑组织炎症程度;免疫组化法测算脑组织不同时期tau蛋白轴索表达数;ELISA法测算小鼠不同时期血清GSK3含量,并计算其与脑组织中磷酸化tau蛋白相关性。结果:小鼠神经功能评分EAE组高于对照组。 HE染色EAE组小鼠炎症反应明显高于对照组,随时间推移炎症反应渐强。免疫组化法EAE组磷酸化tau蛋白表达高于对照组( P<0.01),在瘫痪期前随时间推移表达增加( P<0.01),缓解期表达下降(P<0.01)。血清GSK3含量变化与脑组织磷酸化tau蛋白表达变化间存在正相关性(r=0.9326,P<0.01),直线回归方程:Y=2.950+0.418X。结论:轴索损伤与磷酸化tau蛋白具有相关性,血清GSK3可间接反应脑组织中轴索损伤程度。
目的:研究非燐痠化和燐痠化兩種不同形式tau蛋白在實驗性自身免疫性腦脊髓炎( EAE)小鼠腦組織軸索中不同時期的動態變化及腦組織中燐痠化tau蛋白與血清GSK3相關性。方法:將小鼠隨機分為6組,分彆為EAE急性期組、EAE癱瘓期組、EAE緩解期組、對照急性期組、對照癱瘓期組、對照緩解期組,每組12隻。 EAE組用MOG35-55肽段免疫建造模型,對照組生理鹽水處理。比較不同時期小鼠神經功能評分;採用HE染色法對比不同時期小鼠腦組織炎癥程度;免疫組化法測算腦組織不同時期tau蛋白軸索錶達數;ELISA法測算小鼠不同時期血清GSK3含量,併計算其與腦組織中燐痠化tau蛋白相關性。結果:小鼠神經功能評分EAE組高于對照組。 HE染色EAE組小鼠炎癥反應明顯高于對照組,隨時間推移炎癥反應漸彊。免疫組化法EAE組燐痠化tau蛋白錶達高于對照組( P<0.01),在癱瘓期前隨時間推移錶達增加( P<0.01),緩解期錶達下降(P<0.01)。血清GSK3含量變化與腦組織燐痠化tau蛋白錶達變化間存在正相關性(r=0.9326,P<0.01),直線迴歸方程:Y=2.950+0.418X。結論:軸索損傷與燐痠化tau蛋白具有相關性,血清GSK3可間接反應腦組織中軸索損傷程度。
목적:연구비린산화화린산화량충불동형식tau단백재실험성자신면역성뇌척수염( EAE)소서뇌조직축색중불동시기적동태변화급뇌조직중린산화tau단백여혈청GSK3상관성。방법:장소서수궤분위6조,분별위EAE급성기조、EAE탄탄기조、EAE완해기조、대조급성기조、대조탄탄기조、대조완해기조,매조12지。 EAE조용MOG35-55태단면역건조모형,대조조생리염수처리。비교불동시기소서신경공능평분;채용HE염색법대비불동시기소서뇌조직염증정도;면역조화법측산뇌조직불동시기tau단백축색표체수;ELISA법측산소서불동시기혈청GSK3함량,병계산기여뇌조직중린산화tau단백상관성。결과:소서신경공능평분EAE조고우대조조。 HE염색EAE조소서염증반응명현고우대조조,수시간추이염증반응점강。면역조화법EAE조린산화tau단백표체고우대조조( P<0.01),재탄탄기전수시간추이표체증가( P<0.01),완해기표체하강(P<0.01)。혈청GSK3함량변화여뇌조직린산화tau단백표체변화간존재정상관성(r=0.9326,P<0.01),직선회귀방정:Y=2.950+0.418X。결론:축색손상여린산화tau단백구유상관성,혈청GSK3가간접반응뇌조직중축색손상정도。
Objective:To observe dynamic change of phosphorylated tau protein and non phosphorylated tau protein in axon and explore whether GSK3 in serum were related with phosphorylated tau protein in brain of EAE mice.Methods: Mice were randomly divided into six groups:EAE group of acute stage,EAE group of paralytic stage,EAE group of remission stage,control group of acute stage,control group of paralytic stage,control group of remission stage,each group had twelve mice.EAE model were constructed by MOG35-55 peptides in EAE group, the saline was used in control group.The nerve function scores and incidence were observed and compared.We observed degree of brain inflammation by HE staining and measured axons which contained two kinds of tau protein by immunohistochemistry.GSK3 in serum was tested to find correlation with phosphorylated tau protein in brain by ELISA method.Results:Nerve function scores in EAE group were higher than control group.The degree of inflammation damage was more serious in EAE group than control group,gradually enhancing with time.Phosphorylated tau protein in brain gradually increased before mice paralyzing(P<0.01),but it decreased when symptom relieved(P<0.01).GSK3 in serum were correlated with phosphorylated tau protein in brain(r=0.9326,P<0.01),linear regression equation:Y=2.950+0.418X.Conclusion:Phosphorylated tau protein in brain are correlated with axon damage and GSK3 in serum could indirectly reflect axon damage in brain.