Premium
Decreases in valosin‐containing protein result in increased levels of tau phosphorylated at Ser 262/356
Author(s) -
Dolan Philip J.,
Jin Youngnam N.,
Hwang Woong,
Johnson Gail V.W.
Publication year - 2011
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2011.09.032
Subject(s) - phosphorylation , chemistry , microbiology and biotechnology , biochemistry , biology
VCP/p97 is a multifunctional AAA+‐ATPase involved in vesicle fusion, proteasomal degradation, and autophagy. Reported dysfunctions of these processes in Alzheimer disease (AD), along with the linkage of VCP/p97 to inclusion body myopathy with Paget's disease and frontotemporal dementia (IBMPFD) led us to examine the possible linkage of VCP to the AD‐relevant protein, tau. VCP levels were reduced in AD brains, but not in the cerebral cortex of an AD mouse model, suggesting that VCP reduction occurs upstream of tau pathology. Genetic reduction of VCP in a primary neuronal model led to increases in the levels of tau phosphorylated at Ser 262/356 , indicating that VCP may be involved in regulating post‐translational processing of tau in AD, demonstrating a possible functional linkage between tau and VCP.