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@ARTICLE{Karagianni:163725,
author = {Karagianni, Korina and Pettas, Spyros and Kanata, Eirini
and Lioulia, Elisavet and Thune, Katrin and Schmitz,
Matthias and Tsamesidis, Ioannis and Lymperaki, Evgenia and
Xanthopoulos, Konstantinos and Sklaviadis, Theodoros and
Dafou, Dimitra},
title = {{C}arnosic {A}cid and {C}arnosol {D}isplay {A}ntioxidant
and {A}nti-{P}rion {P}roperties in {I}n {V}itro and
{C}ell-{F}ree {M}odels of {P}rion {D}iseases},
journal = {Antioxidants},
volume = {11},
number = {4},
issn = {2076-3921},
address = {Basel},
publisher = {MDPI},
reportid = {DZNE-2022-00464},
pages = {726},
year = {2022},
abstract = {Prion diseases are transmissible encephalopathies
associated with the conversion of the physiological form of
the prion protein (PrPC) to the disease-associated (PrPSc).
Despite intense research, no therapeutic or prophylactic
agent is available. The catechol-type diterpene Carnosic
acid (CA) and its metabolite Carnosol (CS) from Rosmarinus
officinalis have well-documented anti-oxidative and
neuroprotective effects. Since oxidative stress plays an
important role in the pathogenesis of prion diseases, we
investigated the potential beneficial role of CA and CS in a
cellular model of prion diseases (N2a22L cells) and in a
cell-free prion amplification assay (RT-QuIC). The
antioxidant effects of the compounds were confirmed when
N2a22L were incubated with CA or CS. Furthermore, CA and CS
reduced the accumulation of the disease-associated form of
PrP, detected by Western Blotting, in N2a22L cells. This
effect was validated in RT-QuIC assays, indicating that it
is not associated with the antioxidant effects of CA and CS.
Importantly, cell-free assays revealed that these natural
products not only prevent the formation of PrP aggregates
but can also disrupt already formed aggregates. Our results
indicate that CA and CS have pleiotropic effects against
prion diseases and could evolve into useful prophylactic
and/or therapeutic agents against prion and other
neurodegenerative diseases.},
cin = {AG Zerr / Ext UMG Zerr},
ddc = {610},
cid = {I:(DE-2719)1440011-1 / I:(DE-2719)5000037},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:35453411},
pmc = {pmc:PMC9027925},
doi = {10.3390/antiox11040726},
url = {https://pub.dzne.de/record/163725},
}