% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Krau:141139,
author = {Krauß, Sybille and Nalavade, Rohit and Weber, Stephanie
and Carter, Katlynn and Evert, Bernd O},
title = {{U}pregulation of mi{R}-25 and mi{R}-181 {F}amily {M}embers
{C}orrelates with {R}educed {E}xpression of {ATXN}3 in
{L}ymphocytes from {SCA}3 {P}atients.},
journal = {MicroRNA},
volume = {8},
number = {1},
issn = {2211-5366},
address = {Sharjah [u.a.]},
publisher = {Bentham Science},
reportid = {DZNE-2020-07461},
pages = {76-85},
year = {2019},
abstract = {Spinocerebellar ataxia type 3 (SCA3), the most common
spinocerebellar ataxia, is caused by a polyglutamine (polyQ)
expansion in the protein ataxin-3 (ATXN3). Silencing the
expression of polyQ-expanded ATXN3 rescues the cellular
disease phenotype.This study investigated the differential
expression of microRNAs (miRNAs), small noncoding RNAs
targeting gene expression, in lymphoblastoid cells (LCs)
from SCA3 patients and the capability of identified
deregulated miRNAs to target and alter ATXN3
expression.MiRNA profiling was performed by microarray
hybridization of total RNA from control and SCA3-LCs. The
capability of the identified miRNAs and their target sites
to suppress ATXN3 expression was analyzed using mutagenesis,
reverse transcription PCR, immunoblotting, luciferase
reporter assays, mimics and precursors of the identified
miRNAs.SCA3-LCs showed significantly decreased expression
levels of ATXN3 and a significant upregulation of the
ATXN3-3'UTR targeting miRNAs, miR-32 and miR-181c and
closely related members of the miR-25 and miR-181 family,
respectively. MiR-32 and miR-181c effectively targeted the
3'UTR of ATXN3 and suppressed the expression of ATXN3.The
simultaneous upregulation of closely related miRNAs
targeting the 3'UTR of ATXN3 and the significantly reduced
ATXN3 expression levels in SCA3-LCs suggests that miR-25 and
miR-181 family members cooperatively bind to the 3'UTR to
suppress the expression of ATXN3. The findings further
suggest that the upregulation of miR-25 and miR-181 family
members in SCA3- LCs reflects a cell type-specific,
protective mechanism to diminish polyQ-mediated cytotoxic
effects. Thus, miRNA mimics of miR-25 and miR-181 family
members may prove useful for the treatment of SCA3.},
keywords = {3' Untranslated Regions / Ataxin-3: genetics / Ataxin-3:
metabolism / HeLa Cells / Humans / Lymphocytes: metabolism /
Machado-Joseph Disease: genetics / Machado-Joseph Disease:
metabolism / MicroRNAs: genetics / MicroRNAs: metabolism /
Repressor Proteins: genetics / Repressor Proteins:
metabolism / 3' Untranslated Regions (NLM Chemicals) /
MIRN25 microRNA, human (NLM Chemicals) / MIrn181 microRNA,
human (NLM Chemicals) / MicroRNAs (NLM Chemicals) /
Repressor Proteins (NLM Chemicals) / ATXN3 protein, human
(NLM Chemicals) / Ataxin-3 (NLM Chemicals)},
cin = {AG Krauß},
ddc = {570},
cid = {I:(DE-2719)1011006},
pnm = {342 - Disease Mechanisms and Model Systems (POF3-342)},
pid = {G:(DE-HGF)POF3-342},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30147021},
doi = {10.2174/2211536607666180821162403},
url = {https://pub.dzne.de/record/141139},
}