Use of a phosphosensor dye in proteomic analysis of human mutant tau transgenic mice.

Abstract:

:Recently, we have generated transgenic mice (designated as SJLB) carrying human N279K mutant tau, one of the tau mutations causing parkinsonism linked to chromosome 17 (FTDP-17). SJLB mice mimic some features of behavioral alterations and neuronal pathology of patients with Alzheimer's disease. To investigate how tau dysfunctions cause these features, we examined the expression and phosphorylation levels in SJLB mouse hippocampal proteins using a phosphosensor dye in two-dimensional poly acrylamide gel electrophoresis analysis and mass spectrometry. Calreticulin and tubulin beta4 are significantly more phosphorylated, and heat shock cognate 71 kDa protein, tubulin beta2, vacuolar ATP synthase catalytic subunit A, alpha-internexin, alpha-enolase, ubiquitin carboxyl-terminal hydrolase isozyme L1, and complexin-2 are significantly less phosphorylated in SJLB mice than control mice. These proteins could be new targets for elucidating underlying mechanisms and therapeutic intervention in neurodegenerative diseases.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Takano M,Otani M,Sakai A,Kadoyama K,Matsuyama S,Matsumoto A,Takenokuchi M,Sumida M,Taniguchi T

doi

10.1097/WNR.0b013e328333b0e0

subject

Has Abstract

pub_date

2009-12-09 00:00:00

pages

1648-53

issue

18

eissn

0959-4965

issn

1473-558X

journal_volume

20

pub_type

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