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@PHDTHESIS{Wilken:144866,
author = {Wilken, Petra},
title = {{I}n-vivo-{S}creen verschiedener {A}ggregationsmodulatoren
in transgenen {D}rosophila melanogaster {A}lzheimermodellen
({I}n-vivo-screen of different modulators of aggregation in
transgenic {D}rosophila melanogaster models of {A}lzheimer's
disease)},
school = {Georg-August-Universität zu Göttingen},
type = {Habilitationsschrift},
reportid = {DZNE-2020-00291},
pages = {63 pages : illustrations, VII},
year = {2017},
note = {Habilitationsschrift, Georg-August-Universität zu
Göttingen, 2016},
abstract = {This study was aimed at evaluating different modulators of
amyloid-beta aggregation in Drosophila melanogaster models
of Alzheimer’s disease. Fly model studies are
cost-effective and fast in vivo systems to screen
therapeutic compounds for further testing in mouse models.
Oligomers are described to be the key neurotoxic agents in
neurodegenerative diseases such as Alzheimer’s disease.
Previously it has been shown that anle138b, a
di-phenyl-pyrazol, inhibits aggregation of prion protein and
α-synuclein. We used flies expressing the arctic mutant
(Glu22Gly) of amyloid beta 42 fused to a secretion signal to
allow extracellular aggregation. As readout of
amyloid-mediated toxicity we first expressed amyloid beta
arctic in photoreceptor cells, using the UAS Gal4 System and
assessed eye morphology of flies either treated with
different aggregation inhibitors or solvent control. This
approach captures developmental effects of amyloid beta
toxicity rather than degeneration. Therefore we switched to
a heat inducible expression system which allows start of
expression under the neuronal elav promotor directly after
hatching (elavGal4arc2e;tubGal80). We examined the influence
of nine different inhibitors of aggregation on longevity
compared to solvent control. The administration of the
inhibitors anle138b and anle138c in the Drosophila model
elavGal4/arc2e;tubGal80 showed a significantly prolonged
mean survival time in contrast to the control group treated
with DMSO alone. Importantly, survival of lacZ
overexpression controls was not prolonged, thus excluding an
unspecific effect of these compounds on the life-span.},
cin = {AG Schneider Göttingen},
cid = {I:(DE-2719)1440011},
pnm = {344 - Clinical and Health Care Research (POF3-344)},
pid = {G:(DE-HGF)POF3-344},
typ = {PUB:(DE-HGF)13},
doi = {10.53846/goediss-6030},
url = {https://pub.dzne.de/record/144866},
}