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内源性PS1在活体HEK293和HeLa细胞膜上的定位

Expression and Location of endogenous PS1 gene in cytoplamic membrane of live HEK29 and HeLa cells
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摘要 目的检测内源性PS1在活体细胞膜上的定位及其表达。方法为防止细胞固定及通透使胞膜被破坏,在未经固定和通透的活体细胞上利用PS1抗体,通过间接免疫荧光法观察了内源性PS1在活细胞膜外表面的定位和表达;利用分子标签技术,构建GFP-PS1融合蛋白,瞬时转染细胞,检测到外源性PS1在细胞核膜的定位及在胞质中的少量分布;同时利用PS1抗体,将细胞固定及通透,用间接免疫荧光技术,检测到内源性PS1在细胞核膜中的定位及在细胞质中的少量不均匀分布。结果内源性PS1在定位于亚细胞结构的膜同时,也定位于细胞外膜。结论成功地在活体细胞外膜上检测到内源性PS1。 Objective To detect the membrane location of endogenous PS1 on live cells.Methods HEK293 and HeLa cells were transfected with fusion proteins by attaching GFP-PS1.The cellular location of endogenous and exogenous PS1was characterized with antibody by indirect immunofluorescence technique.Results Endogenous and exogenous PS1 was found on the nuclear membrane and a little and inhomogeneous distribution in cytoplasm.Conclusions Endogenous PS1 located on the outer membrane of the unfixed and live cells.
出处 《基础医学与临床》 CSCD 北大核心 2012年第12期1400-1405,共6页 Basic and Clinical Medicine
基金 科学技术部"科技基础工作项目"(G99-E-01)
关键词 早老素1基因 绿色荧光蛋白(GFP) 活体细胞 定位 presenilin 1 gene green fluorescence protein live cell location
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  • 1Jakob-Roetne R,Jacobsen H. Alzheimer's disease:from pathology to therapeutic approaches[J].Angewandte Chemie International Edition in English,2009.3030-3059.
  • 2Alzheimer's Association. 2009 Alzheimer's disease facts and figures[J].Alzheimers Dement,2009.234-270.
  • 3Oddo S,Caccamo A,Tseng B. Blocking Abeta42 accumulation delays the onset and progression of tau pathology via the C terminus of heat shock protein70-interacting protein:a mechanistic link between Abeta and tau pathology[J].The Journal of Neuroscience,2008.12163-12175.
  • 4Marjaux E,Hartmann D,De Strooper B. Presenilins in memory,Alzheimer's disease,and therapy[J].Neuron,2004.189-192.
  • 5Bu G. Apolipoprotein E and its receptors in Alzheimer' s disease:pathways,pathogenesis and therapy[J].Nat Rev Neurosei,2009.333-344.
  • 6Mariani E,Seripa D,Ingegni T. Interaction of CTSD and A2M polymorphisms in the risk for Alzheimer's disease[J].Journal of the Neurological Sciences,2006.187-191.
  • 7Mattsson N,Zetterberg H,Hansson O. CSF biomarkers and incipient Alzheimer disease in patients with mild cognitive impairment[J].Journal of the American Medical Association,2009.385-393.
  • 8Spasic D,Tolia A,Dillen K. Presenilin-1 maintains a nine-transmembrane topology throughout the secretory pathway[J].Journal of Biological Chemistry,2006.26569-26577.
  • 9Brunkan AL,Goate AM. Presenilin function and γ-secretase activity[J].Journal of Neurochemistry,2005.769-792.
  • 10Pachlatko E,Rusch S,Müller A. MAHRP2,an exported protein of Plasmodium falciparum,is an essential component of Maurer's cleft tethers[J].Molecular Microbiology,2010.1136-1152.

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