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@ARTICLE{Yamada:141674,
author = {Yamada, Elizabeth S and Respondek, Gesine and Müssner,
Stefanie and de Andrade, Anderson and Höllerhage, Matthias
and Depienne, Christel and Rastetter, Agnès and Tarze,
Agathe and Friguet, Bertrand and Salama, Mahmoud Elhussiny
Abdelhaleen and Champy, Pierre and Oertel, Wolfgang H and
Höglinger, Günter},
title = {{A}nnonacin, a natural lipophilic mitochondrial complex {I}
inhibitor, increases phosphorylation of tau in the brain of
{FTDP}-17 transgenic mice.},
journal = {Experimental neurology},
volume = {253},
issn = {0014-4886},
address = {Orlando, Fla.},
publisher = {Academic Press},
reportid = {DZNE-2020-00005},
pages = {113-125},
year = {2014},
abstract = {Both genetic and environmental factors likely contribute to
the neuropathology of tauopathies, but it remains unclear
how specific genetic backgrounds affect the susceptibility
towards environmental toxins. Mutations in the tau gene have
been associated with familial tauopathies, while annonacin,
a plant-derived mitochondrial inhibitor, has been implicated
in an environmental form of tauopathy. We therefore
determined whether there was a pathogenic synergy between
annonacin exposure and the expression of the R406W-tau
mutation in transgenic mice. We found that annonacin
exposure caused an increase in the number of neurons with
phosphorylated tau in the somatodendritic compartment in
several brain areas in R406W(+/+) mice as opposed to mice
that had only the endogenous mouse tau (R406W(-/-)). Western
blot analysis demonstrated a concomitant increase in total
tau protein without increase in tau mRNA, but reduced
proteasomal proteolytic activity in R406W(+/+), but not
R406W(-/-) mice, upon annonacin-treatment. Phosphorylated
tau levels exceeded the increase in total tau protein, along
with increased levels of different tau kinases, foremost a
striking increase in the p25/p35 ratio, known to activate
the tau kinase Cdk5. In summary, we observed a synergistic
interaction between annonacin exposure and the presence of
the R406W-tau mutation, which resulted in reduced
degradation, increased phosphorylation and redistribution of
neuronal tau.},
keywords = {Animals / Arginine: genetics / Brain: drug effects / Brain:
metabolism / Dose-Response Relationship, Drug / Enzyme
Inhibitors: pharmacology / Furans: pharmacology / Gene
Expression Regulation: drug effects / Gene Expression
Regulation: genetics / Humans / Lactones: pharmacology /
Mice / Mice, Inbred C57BL / Mice, Transgenic / Microglia:
drug effects / Microtubule-Associated Proteins: metabolism /
Mitochondria: genetics / Mitochondria: metabolism /
Mortality / Mutation: genetics / Neurons: drug effects /
Phosphorylation: drug effects / Phosphorylation: genetics /
Tryptophan: genetics / tau Proteins: genetics / Enzyme
Inhibitors (NLM Chemicals) / Furans (NLM Chemicals) /
Lactones (NLM Chemicals) / MAPT protein, human (NLM
Chemicals) / Microtubule-Associated Proteins (NLM Chemicals)
/ tau Proteins (NLM Chemicals) / annonacin (NLM Chemicals) /
Tryptophan (NLM Chemicals) / Arginine (NLM Chemicals)},
cin = {AG Höglinger 1},
ddc = {610},
cid = {I:(DE-2719)1110002},
pnm = {344 - Clinical and Health Care Research (POF3-344)},
pid = {G:(DE-HGF)POF3-344},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:24389273},
doi = {10.1016/j.expneurol.2013.12.017},
url = {https://pub.dzne.de/record/141674},
}