PubMed: 25125464

Increased tau phosphorylation and aggregation in the hippocampus of mice overexpressing corticotropin-releasing factor.
Journal of Alzheimer's disease : JAD
Campbell SN | Masliah E | Monte L | Rice KC | Rissman RA | Roe AD | Taché Y | Zhang C

Evidence a7b5423606

Analysis of synaptosomes revealed that FynCA accumulated at high levels in the spine, resulting in increased levels of the NMDA receptor subunit NR2b phosphorylated at residue Y1472. Tau was strongly phosphorylated at the AT8 epitope S202/T205 as shown by Western blot and immunohistochemistry indicating that an increased tyrosine kinase activity of Fyn has down-stream consequences for serine/threonine-directed phosphorylation.

Evidence 4a49dfeb06

CRF-OE mice had significantly elevated tau-P compared to wild type (WT) mice at the AT8 (S202/T204), PHF-1 (S396/404), S262, and S422 sites. Treating CRF-OE mice with R121919 blocked phosphorylation at the AT8 (S202/T204) and PHF-1 (S396/404) sites, but not at the S262 and S422 sites and reduced phosphorylation of c-Jun N Terminal Kinase (JNK).


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