Paternal fenvalerate exposure causes depressive-like behaviour by altering Grb10 gene DNA methylation in adolescent offspring
Ecotoxicology and Environmental Safety,
Journal Year:
2025,
Volume and Issue:
292, P. 117994 - 117994
Published: March 1, 2025
Fenvalerate,
a
typical
pyrethroid
pesticide,
is
neurological
toxicant.
This
study
aimed
to
evaluate
the
effect
of
paternal
exposure
fenvalerate
on
depressive-like
behaviours
in
adolescent
offspring.
Depression-like
behavior
was
determined
by
Sucrose
Preference
Test
(SPT),
Tail
Suspension
(TST)
and
Forced
Swimming
(FST)
The
level
dopamine
reduced
midbrain
fenvalerate-exposed
Tyrosine
hydroxylase
(Th),
rate
limiting
enzyme
for
synthesis,
significantly
offspring
exposed
fenvalerate.
And
Th
decreased
hindbrain
fetuses
Transcriptome
analysis
revealed
growth
factor
receptor-bound
protein
10
(Grb10)
fetal
Grb10
mRNA
were
Interestingly,
vitro
experiments,
si-Grb10.
Conversely,
increased
oe-Grb10.
Mechanistically,
5mC
content
gene
at
one
CpG
fragment
eighteen
sites
sperm
In
summary,
causes
altering
DNA
methylation
sperm.
Language: Английский
Synaptotagmin-1 is a Ca2+ sensor for somatodendritic dopamine release
Cell Reports,
Journal Year:
2022,
Volume and Issue:
42(1), P. 111915 - 111915
Published: Dec. 30, 2022
Modes
of
somatodendritic
transmission
range
from
rapid
synaptic
signaling
to
protracted
regulation
over
distance.
Somatodendritic
dopamine
secretion
in
the
midbrain
leads
D2
receptor-induced
modulation
neurons
on
timescale
seconds.
Temporally
imprecise
release
mechanisms
are
often
presumed
be
at
play,
and
previous
work
indeed
suggested
roles
for
slow
Ca2+
sensors.
We
here
use
mouse
genetics
whole-cell
electrophysiology
establish
that
fast
sensor
synaptotagmin-1
(Syt-1)
is
important
release.
Syt-1
ablation
strongly
reduces
stimulus-evoked
receptor-mediated
inhibitory
postsynaptic
currents
(D2-IPSCs)
midbrain.
D2-IPSCs
evoked
by
paired
stimuli
exhibit
less
depression,
high-frequency
trains
restore
Spontaneous
independent
Syt-1,
supporting
its
exocytotic
differ
conclude
relies
leading
synchronous
response
initial
stimulus.
Language: Английский
Synaptotagmins 1 and 7 Play Complementary Roles in Somatodendritic Dopamine Release
Takuya Hikima,
No information about this author
Paul Witkovsky,
No information about this author
Latika Khatri
No information about this author
et al.
Journal of Neuroscience,
Journal Year:
2022,
Volume and Issue:
42(19), P. 3919 - 3930
Published: March 31, 2022
The
molecular
mechanisms
underlying
somatodendritic
dopamine
(DA)
release
remain
unresolved,
despite
the
passing
of
decades
since
its
discovery.
Our
previous
work
showed
robust
DA
in
submillimolar
extracellular
Ca
Language: Английский
SYT7 as a Potential Prognostic Marker Promotes the Metastasis of Epithelial Ovarian Cancer Cells by Activating the STAT3 Pathway
Molecular Carcinogenesis,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 27, 2024
ABSTRACT
The
study
aimed
to
investigate
the
impact
of
synaptotagmin
7
(SYT7)
on
metastasis
epithelial
ovarian
cancer
(EOC)
and
its
potential
mechanisms.
This
was
achieved
through
analysis
SYT7
expression
levels
clinical
relevance
in
EOC
using
bioinformatics
from
TCGA.
Additionally,
examined
influence
migration
invasion
cells,
as
well
explored
molecular
mechanisms
vitro
cell
lines
vivo
mouse
xenograft
models.
Our
research
revealed
that
human
tissues
exhibit
significantly
elevated
compared
normal
tissues,
is
inversely
correlated
with
overall
survival.
Suppression
effectively
impeded
migratory
invasive
capabilities
CAOV3
whereas
overexpression
notably
accelerated
tumor
progression
A2780
cells.
Mechanistic
investigations
demonstrated
upregulates
p‐STAT3
MMP2
Importantly,
treatment
STAT3
inhibitor
niclosamide
counteracted
oncogenic
effects
EOC.
inhibition
found
reduce
a
nude
model.
findings
suggest
upregulation
associated
negative
prognosis,
it
enhances
by
activating
signaling
pathway.
Thus,
might
be
utilized
prognostic
marker
target.
Language: Английский