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@ARTICLE{Khan:294721,
author = {D. Khan and D. Bock$^*$ and H.-K. Liu$^*$ and S. Muhammad},
title = {{T}lx {P}romotes {S}troke-{I}nduced {N}eurogenesis and
{N}euronal {R}epair in {Y}oung and {A}ged {M}ice.},
journal = {International journal of molecular sciences},
volume = {25},
number = {22},
issn = {1422-0067},
address = {Basel},
publisher = {Molecular Diversity Preservation International},
reportid = {DKFZ-2024-02454},
pages = {12440},
year = {2024},
note = {DKFZ-ZMBH Alliance},
abstract = {Stroke is one of the leading causes of chronic disability
in humans. It has been proposed that the endogenous neural
stem/progenitor cells generate new neurons in the damaged
area. Still, the contribution of these cells is negligible
because a low number of newborn mature neurons are formed.
Tlx conventional knock-out mice, Tlx-CreERT2 mice, and
Tlx-overexpressing (Tlx-OE) mice were specifically chosen
for their unique genetic characteristics, which were crucial
for the experiments. Permanent and transient middle cerebral
artery occlusion was used to induce stroke in the mice.
Immunostainings for doublecortin and GFP/BrdU/NeuN were
performed to study neurogenesis and fate mapping. The
rotarod test was performed to assess motor deficits. Here,
we show that stroke-induced neurogenesis is dramatically
increased with the additional expression of two copies of
the nuclear receptor-coding gene tailless (Tlx, also known
as Nr2e1), which has been shown to be a master regulator of
subventricular zone (SVZ) neural stem cells (NSCs). We show
that Tlx expression is upregulated after stroke, and
stroke-induced neurogenesis is blocked when Tlx is
inactivated. Tlx overexpression in NSCs leads to massive
induction of neurogenesis via stroke. More newborn mature
neurons are formed in Tlx-overexpressing mice, leading to
improved coordination and motor function recovery. Most
importantly, we also demonstrate that this process is
sustained in aged mice, where stroke-induced neurogenesis is
nearly undetectable in wild-type animals. This study
provides the first stem cell-specific genetic evidence that
endogenous NSCs can be exploited by manipulating their
master regulator, Tlx, and thus suggests a novel therapeutic
strategy for neuronal repair.},
keywords = {Animals / Neurogenesis / Mice / Neural Stem Cells:
metabolism / Neural Stem Cells: cytology / Stroke:
metabolism / Stroke: pathology / Neurons: metabolism /
Receptors, Cytoplasmic and Nuclear: metabolism / Receptors,
Cytoplasmic and Nuclear: genetics / Aging: metabolism /
Mice, Knockout / Male / Mice, Inbred C57BL / Infarction,
Middle Cerebral Artery: metabolism / Infarction, Middle
Cerebral Artery: pathology / Tlx (Other) / adult
neurogenesis (Other) / neural stem cells (Other) / stroke
(Other) / Nr2e1 protein, mouse (NLM Chemicals) / Receptors,
Cytoplasmic and Nuclear (NLM Chemicals)},
cin = {W190 / A240},
ddc = {540},
cid = {I:(DE-He78)W190-20160331 / I:(DE-He78)A240-20160331},
pnm = {311 - Zellbiologie und Tumorbiologie (POF4-311)},
pid = {G:(DE-HGF)POF4-311},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:39596503},
pmc = {pmc:PMC11594625},
doi = {10.3390/ijms252212440},
url = {https://inrepo02.dkfz.de/record/294721},
}