MSC exosomes attenuate sterile inflammation and necroptosis associated with TAK1-pJNK-NFKB mediated cardiomyopathy in diabetic ApoE KO mice
Frontiers in Immunology,
Год журнала:
2024,
Номер
15
Опубликована: Фев. 8, 2024
Introduction
Diabetes
is
a
debilitating
disease
that
leads
to
complications
like
cardiac
dysfunction
and
heart
failure.
In
this
study,
we
investigated
the
pathophysiology
of
diabetes-induced
in
mice
with
dyslipidemia.
We
hypothesize
diabetes
ApoE
knockout
(ApoE-/-)
induces
by
increasing
inflammation
necroptosis.
Methods
ApoE-/-
were
divided
into
experimental
groups:
Control,
Streptozotocin
(STZ),
STZ
+
MSC-Exo
(mesenchymal
stem
cell-derived
exosomes),
STZ+MEF-Exo
(Mouse
embryonic
fibroblast
derived
exosomes).
At
Day
42,
assessed
function,
collected
blood
tissues.
Heart
tissue
samples
analyzed
for
inflammation,
necroptosis,
signaling
mechanism,
hypertrophy
adverse
structural
remodeling
using
histology,
immunohistochemistry,
western
blotting,
RT-PCR,
cytokine
array
TF
array.
Results
Discussion
treated
developed
diabetes,
significantly
(p<0.05)
increased
glucose
body
weight
loss.
These
left
ventricular
internal
diameter
end
diastole
systole,
decreased
ejection
fraction,
fractional
shortening.
found
significant
expression
inflammatory
cytokines
TNF-
a,
IL-6,
IL-1a,
IL-33
IL-10
expression.
Diabetic
also
exhibited
necroptosis
marker
infiltration
monocytes
macrophages.
MSC-Exos
showed
recovery
associated
pathologies
reduced
glucose,
recovered
weight,
secretion
M2
polarized
macrophages
heart.
TAK1-pJNK-NFKB
improved
function
fibrosis
compared
diabetic
mice.
Treatment
MEF-Exos
did
not
play
role
attenuating
cardiomyopathy
as
these
treatment
presented
underlying
observed
Conclusion
Thus,
conclude
develops
mice,
arising
from
remodeling,
which
ameliorated
MSC-Exos,
potential
therapeutic
cardiomyopathy.
Язык: Английский
Mesenchymal Stem Cell Derived Exosomes Ameliorates Doxorubicin-Induced Cardiotoxicity
Опубликована: Дек. 13, 2023
Doxorubicin
(DOX)
is
an
incessantly
used
chemotherapeutic
drug
that
can
cause
detrimental
dose-dependent
effects
such
as
cardiotoxicity
and
congestive
heart
failure.
Hence,
there
a
need
to
discover
innovative
therapeutic
approaches
counteract
DOX-induced
(DIC).
MSC-Exos
have
shown
reduce
apoptosis
cardiac
fibrosis
promote
cardiomyocyte
proliferation
in
myocardial
infracted
mice.
However,
the
effect
of
on
ameliorating
pyroptosis
has
not
been
investigated.
In
this
current
study
H9c2
were
first
exposed
DOX
stimulate
pyroptosis,
followed
by
subsequent
treatment
with
MSC-Exos,
further
analysis
performed
through
immunocytochemistry,
western
blotting,
RT-PCR.
Our
data
depicted
post-treatment
significantly
(p&lt;0.05)
reduced
HMGB1/TLR4
axis,
inflammasome
formation
(NLRP3),
pyroptotic
markers
(caspase-1,
IL-1β,
IL-18),
executioner
(GSDMD)
DOX-treated
cells.
conclusion,
our
shows
attenuates
inflammation-induced
vitro
DIC
model.
findings
indicate
may
serve
promising
intervention
for
mitigating
DIC,
they
maintain
capabilities
MSCs
while
circumventing
drawbacks
associated
traditional
stem
cell
therapy.
Язык: Английский