Cells,
Год журнала:
2023,
Номер
12(12), С. 1667 - 1667
Опубликована: Июнь 19, 2023
Pathological
cardiac
hypertrophy
is
one
of
the
notable
causes
heart
failure.
Circular
RNAs
(circRNAs)
have
been
studied
in
association
with
hypertrophy;
however,
mechanisms
by
which
circRNAs
regulate
remain
unclear.
In
this
study,
we
identified
a
new
circRNA,
named
circCacna1c,
hypertrophy.
Adult
male
C57BL/6
mice
and
H9c2
cells
were
treated
isoprenaline
hydrochloride
(ISO)
to
establish
model.
We
found
that
circCacna1c
was
upregulated
ISO-induced
hypertrophic
tissue
cells.
Western
blot
quantitative
real-time
polymerase
chain
reaction
showed
silencing
inhibited
gene
expression
Mechanistically,
competitively
bound
miR-29b-2-5p
dual-luciferase
reporter
assay,
downregulated
MiR-29b-2-5p
nuclear
factor
activated
T
cells,
cytoplasmic,
calcineurin-dependent
1
(NFATc1)
control
expression.
After
increased,
reduced
inhibiting
NFATc1
Together,
these
experiments
indicate
promotes
pathological
through
miR-29b-2-5p/NFATc1
axis.
Biomedicines,
Год журнала:
2025,
Номер
13(6), С. 1338 - 1338
Опубликована: Май 29, 2025
Background:
Several
mitochondrial
abnormalities
such
as
defective
energy
production,
depletion
of
stores,
Ca2+
accumulation,
generation
reactive
oxygen
species,
and
impaired
intracellular
signaling
are
associated
with
cardiac
dysfunction
during
the
development
different
heart
diseases.
Methods:
A
narrative
review
was
compiled
by
a
search
for
applicable
literature
in
MEDLINE
via
PubMed.
Results:
Mitochondria
generate
ATP
through
processes
electron
transport
oxidative
phosphorylation,
which
is
used
contractile
function.
Mitochondria,
fact,
key
subcellular
organelle
regulation
concentration
considered
to
serve
buffer
maintain
homeostasis
cardiomyocytes.
However,
disease,
excessive
accumulation
results
mitochondria
Ca2+-overload,
which,
turn,
impairs
production
induces
dysfunction.
also
species
(ROS),
including
superoxide
anion
radicals
hydroxyl
well
non-radical
oxidants
hydrogen
peroxide,
promote
lipid
peroxidation
subsequent
disturbance
homeostasis,
cellular
damage,
death.
Conclusion:
These
observations
support
view
that
both
stress
Ca2+-overload
play
critical
role
disruption
pathogenesis
pathologies.
Mast
cells
are
granulocytic
immune
sentinels
present
in
vascularized
tissues
that
drive
chronic
inflammatory
mechanisms
characteristic
of
allergic
pathologies.
IgE-mediated
mast
cell
activation
leads
to
a
rapid
mobilization
Ca2+
from
intracellular
stores,
which
is
essential
for
the
release
preformed
mediators
via
degranulation
and
de
novo
synthesized
proinflammatory
cytokines
chemokines.
Given
its
potent
signaling
capacity,
dynamics
localization
highly
regulated
by
various
pumps
channels
controlling
cytosolic
concentrations.
Among
these
sarco/endoplasmic
reticulum
-ATPase
(SERCA),
functions
maintain
low
concentrations
actively
transporting
ions
into
endoplasmic
reticulum.
In
this
study,
we
characterized
role
SERCA
allergen-activated
using
IgE-sensitized
bone
marrow-derived
(BMMCs)
treated
with
activating
compound,
CDN1163,
simultaneously
stimulated
allergen
through
FcεRI
under
stem
factor
(SCF)
potentiation.
Acute
treatment
CDN1163
was
found
attenuate
early
phase
along
reactive
oxygen
species
(ROS)
production.
Additionally,
significantly
reduced
secretion
IL-6,
IL-13,
CCL3,
suggesting
late
response.
The
protective
effects
on
response
may
be
driven
selective
suppression
p38
MAPK
signaling.
Together,
findings
implicate
as
an
important
regulator
suggest
activity
offer
therapeutic
potential
targeting
pathologies,
warranting
further
investigation.
Cells,
Год журнала:
2023,
Номер
12(12), С. 1667 - 1667
Опубликована: Июнь 19, 2023
Pathological
cardiac
hypertrophy
is
one
of
the
notable
causes
heart
failure.
Circular
RNAs
(circRNAs)
have
been
studied
in
association
with
hypertrophy;
however,
mechanisms
by
which
circRNAs
regulate
remain
unclear.
In
this
study,
we
identified
a
new
circRNA,
named
circCacna1c,
hypertrophy.
Adult
male
C57BL/6
mice
and
H9c2
cells
were
treated
isoprenaline
hydrochloride
(ISO)
to
establish
model.
We
found
that
circCacna1c
was
upregulated
ISO-induced
hypertrophic
tissue
cells.
Western
blot
quantitative
real-time
polymerase
chain
reaction
showed
silencing
inhibited
gene
expression
Mechanistically,
competitively
bound
miR-29b-2-5p
dual-luciferase
reporter
assay,
downregulated
MiR-29b-2-5p
nuclear
factor
activated
T
cells,
cytoplasmic,
calcineurin-dependent
1
(NFATc1)
control
expression.
After
increased,
reduced
inhibiting
NFATc1
Together,
these
experiments
indicate
promotes
pathological
through
miR-29b-2-5p/NFATc1
axis.