期刊文献+

MCI-186减轻Aβ_(1-40)诱导PC12细胞tau蛋白磷酸化的研究 被引量:2

下载PDF
导出
摘要 目的探讨依达拉奉(MCI-186)对β样淀粉蛋白(Aβ1-40)引起的PC12细胞tau蛋白磷酸化的保护作用及其机制。方法采用Western印迹等检测Ser396,Ser199/202,Tau-5及GSK-3β,GSK-3βSer9磷酸化水平,观察MCI-186对Aβ25-35致PC12细胞的损伤保护作用。结果模型组tau蛋白在Ser396、Ser199/202位点的磷酸化水平及总tau蛋白水平在Aβ1-40作用3h后开始升高,同时GSK-3β的表达增多,磷酸化GSK-3βSer9的表达减少,MCI-186保护组tau蛋白在Ser396,Ser199/202位点的磷酸化水平和总tau蛋白水平均明显低于Aβ模型组(P<0.05),GSK-3β的表达减少,磷酸化GSK-3βSer9的表达增多(P<0.05)。结论在Aβ1-40诱导PC12细胞损伤过程中,出现了tau蛋白的过度磷酸化,可以使Ser396,Ser199/202位点及Tau-5蛋白升高。激活GSK-3β是产生tau蛋白过度磷酸化的主要途径。MCI-186可通过抑制GSK-3β的活性,从而减轻Aβ1-40诱导的tau蛋白过度磷酸化,而达到保护神经细胞的目的。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2009年第20期2624-2627,共4页 Chinese Journal of Gerontology
基金 黑龙江省教育厅资助课题(11541205)
  • 相关文献

参考文献13

  • 1Igbal K, Zaidi T, Bancher C, et al. Alzheimer paired helical filaments : Restrictionof the biological activity by dephosphorylation [ J]. FEBS Lett, 1994 ; 349 : 104-8.
  • 2吴琪,方莹莹,郑树森,钱采.海马内注射纤丝状Aβ_(42)诱导tau异常磷酸化的研究[J].中国神经精神疾病杂志,2003,29(3):175-176. 被引量:8
  • 3Bandyopadhyay B,Li G, Yin H, et al. Tau aggregation and toxicity in a cell culture model of tanopathy[ J ]. Biol Chem,2007;282 (22) :16454- 64.
  • 4Iuvone T, De Filippis D, Esposito G, et al. The spice sage and its active ingredient rosmarinic acid protect PC12 cells from amyloid-beta peptideinduced neurotoxicity[ J]. Pharmacol Exp Ther,2006 ;317 ( 3 ) : 1143-9.
  • 5De Felice FG, Wu D, Lambert MP,et al. Alzheimer's disease-type neuronal tau hyperphosphorylatlon induced by A beta oligomers[J]. Neurobiol Aging,2008 ;29 ( 9 ) : 1334-47.
  • 6Kurko D, Boros A, Dezso P, et al. Flow cytometry-based method to analyze the change in Tan phosphorylation in a hGSK-3beta and hTau over-expressing EcR-293 cell line [ J ]. Neurochem Int ,2006 ;48 (5) :374-82.
  • 7Hasegawa M, Morishima S, Kawashima M, et al. Protein sequence and mass spectrometric analyses of tan of the Alzheimer's disease brain [ J]. Biol Chem, 1992 ;267 ( 26 ) : 17047.
  • 8Zhang J, Johnson GV. Tau protein is hyperphosphorylated in a site-specific manner in apoptotic neuronal PC 12 cells [ J ]. Neurochemistry, 2000 ;75 (6) :2346-57.
  • 9Davis PK,Johnson GV. The microtubule binding of Tau and high molecular weight Tau in apoptotic PC12 cells is impaired because of altered phosphorylation [ J ]. Biol Chem, 1999 ;274 ( 50 ) : 35686-92.
  • 10Kosuga S,Tashiro E, Kajioka T, et al. GSK-3beta directly phosphorylates and activates MARK2/PAR-1 [J]. Biol Chem,2005 ;280 (52) :42715- 22.

二级参考文献8

  • 1申洪.免疫组织化学染色定量方法研究(Ⅲ)[J].中国组织化学与细胞化学杂志,1995,4(1):89-92. 被引量:398
  • 2包新民 舒斯云 主编.大鼠脑立体定向图谱第1版[M].北京:人民卫生出版社,1991.47-50.
  • 3Maho MK, Masato H, Koji T, et al. Hyperphosphorylation of tau in PHF. Nuerobiol of Aging, 1995, 16(3): 365.
  • 4Arriagada PV, Growdon JH, Hedley-Whyte T, et al. Neurofibrillary tangles but not senile plaques parallel duration and severity of Alzheimer's disease. Neurology, 1992, 42(3): 631.
  • 5Busciglio J, Lorenzo A, Yeh J, et al. β-Amyloid fibrils induce tau phosphorylation and loss of microtubule binding. Neuron, 1995, 14(4) :879.
  • 6Davis DR, Brion JP, Couck AM, et al. The phosphorylation state of the microtubule-associated protein tau as affected by glulamate, colchicine and β-amyloid in primary rat cortical neuronal cultures. Biochem. J,1995, 309(4): 941.
  • 7Wolozin B, Behl C. Mechanisms of neurodegenerative disorders: part 1 :protein aggregates. Arch Neurol, 2000, 57(6) : 793.
  • 8Lorenzo A, Yankner BA. β-amyloid neurotoxity requires fibril formation and is inhibited by Congo red. Proc Natl Acad Sci USAf, 1994, 91(25) :12243.

共引文献7

同被引文献24

引证文献2

二级引证文献7

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部