bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 3, 2024
Abstract
Background
Tissue
regeneration
heavily
relies
on
cellular
energy
production,
with
mitochondria
playing
a
crucial
role.
Dysfunctional
are
implicated
in
various
degenerative
diseases,
driving
interest
targeting
mitochondrial
transplantation
for
tissue
repair.
Wound
healing
is
highly
compromised
gastrointestinal
conditions
resulting
fistula
development,
particularly
after
sleeve
gastrectomy.
Human
mesenchymal
stem/stromal
cells
(hMSCs)
and
their
cell-free
products
such
as
offer
potential
benefits
due
to
therapeutic
properties
production.
Here
we
investigated
the
advantage
of
hMSCs-derived
nano-biotherapy
rat
model
post-surgical
healing.
Methods
Viable
structurally
intact
were
isolated
from
hMSCs
before
exposure
human
colonic
epithelial
(HCEC-1CT)
culture
or
into
post-operative
fistula.
Results
Our
findings
reveal
significant
dose-dependent
improvement
metabolic
activity
ATP
content
recipient
cells.
Assessment
external
orifice
developed
following
post
gastrectomy
fistula,
revealed
substantial
all
transplanted
rats
compared
control
group.
Conclusion
highlight
This
research
contributes
advancing
regenerative
strategies
conditions,
offering
new
insights
mitochondrial-based
therapies
enhancing
wound
Stem Cell Research & Therapy,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Jan. 5, 2025
Pulmonary
fibrosis
(PF)
is
a
common
and
multidimensional
devastating
interstitial
lung
disease.
The
development
of
novel
more
effective
interventions
for
PF
an
urgent
clinical
need.
A
previous
study
has
found
that
miR-181a-5p
plays
important
role
in
the
PF,
human
amniotic
mesenchymal
stem
cells
(hAMSCs)
exert
potent
therapeutic
potential
on
PF.
However,
whether
hAMSCs
act
by
delivering
its
detailed
mechanism
still
remain
unknown.
Thus,
this
was
designed
to
investigate
underlying
possible
bleomycin
(BLM)-induced
mouse
model,
co-culture
system
A549
epithelial
transition
(EMT)
focusing
effects
collagen
deposition,
EMT,
cell
cycle
regulation.
with
different
expression
levels
were
constructed.
BLM
(4
mg/kg)
used
create
while
TGF-β1
induce
construct
EMT
model.
Furthermore,
deposition
during
assessed
vivo
vitro.
We
exerted
anti-fibrotic
effect
BLM-induced
Moreover,
also
protective
TGFβ1-induced
ameliorated
promoting
proliferation,
reducing
apoptosis,
attenuating
through
paracrine
effects.
regulated
targeting
TGFBR1.
Our
findings
reveal
first
time
inhibit
EMT.
Mechanistically,
hMASCs
achieved
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 31, 2025
Extracellular
vesicles
(EVs)
have
emerged
as
promising
therapeutics
for
regenerative
medicine,
but
the
efficacy
of
current
exogenous
EV-based
therapies
treating
chronic
tissue
injury
is
still
unsatisfactory.
Exercise
can
affect
skeletal
muscle
EV
secretion
and
that
this
process
regulates
systemic
health-promoting
role
exercise,
suggesting
fine-tuning
endogenous
may
provide
a
new
therapeutic
avenue.
Here,
work
reports
in
vivo
reprogramming
via
metabolic
engineering
strategy
diseases.
Briefly,
exercise
enhanced
mitochondrial
metabolism
production
healthy
muscles,
EVs
from
muscles
subjected
to
or
(boosting
biogenesis
AAV-mediated
muscle-specific
TFAM
overexpression)
exerted
cellular
protective
effects
vitro.
In
injured
therapy
could
reprogram
patterns
(reducing
pathological
compositions
while
increasing
beneficial
compositions)
by
regulating
multiple
cargo
sorting
pathways.
Reprogrammed
muscle-derived
reach
major
organs
tissues
circulation
then
simultaneously
attenuated
multiple-tissue
(e.g.,
kidney)
kidney
disease.
This
study
highlights
tissue-derived
approach
potential
diverse
Stem Cell Research & Therapy,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: April 12, 2025
Mesenchymal
stem
cells
(MSCs)
play
a
crucial
role
in
bone
formation
and
remodeling.
Intrinsic
genetic
factors
extrinsic
environmental
cues
regulate
their
differentiation
into
osteoblasts.
Within
the
microenvironment,
complex
network
of
biochemical
biomechanical
signals
orchestrates
homeostasis
regeneration.
In
addition,
crosstalk
among
MSCs,
immune
cells,
neighboring
cells-mediated
by
extracellular
vesicles
non-coding
RNAs
(such
as
circular
micro
RNAs)
-profoundly
influences
osteogenic
Recent
studies
have
explored
specific
signaling
pathways
that
contribute
to
effective
regeneration,
highlighting
potential
manipulating
microenvironment
enhance
MSC
functionality.
The
integration
advanced
biomaterials,
gene
editing
techniques,
controlled
delivery
systems
is
paving
way
for
more
targeted
efficient
regenerative
therapies.
Furthermore,
artificial
intelligence
could
improve
tissue
engineering,
optimize
biomaterial
design,
enable
personalized
treatment
strategies.
This
review
explores
latest
advancements
emphasizing
intricate
interplay
molecules.
By
providing
comprehensive
overview
these
mechanisms
clinical
implications,
we
aim
shed
light
on
future
research
directions
this
rapidly
evolving
field.
Journal of Cellular and Molecular Medicine,
Journal Year:
2025,
Volume and Issue:
29(8)
Published: April 1, 2025
ABSTRACT
Sepsis‐induced
cardiomyopathy
(SICM)
is
a
complex
and
fatal
manifestation
of
sepsis,
characterised
by
myocardial
dysfunction
that
exacerbates
the
clinical
prognosis
in
septic
patients.
While
pathophysiology
SICM
remains
incompletely
understood,
emerging
evidence
highlights
multifaceted
functions
exosomes,
small
membrane‐bound
extracellular
vesicles,
mediating
inflammatory
responses
cardiac
involved
this
condition.
During
exosomes
are
secreted
various
cells,
such
as
cardiomyocytes,
endothelial
cells
macrophages,
which
serve
critical
messengers,
transferring
proteins,
lipids
RNA
molecules
influence
recipient
thus
affecting
cellular
disease
progression.
This
review
summarises
basics
focuses
on
exosome‐mediated
mechanisms
SICM,
including
their
role
inflammation,
oxidative
stress,
mitochondrial
injury,
offering
novel
insights
into
exosome‐based
therapeutic
strategies
SICM.
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 30, 2025
Biomaterials
functionalized
with
small
extracellular
vesicles
(sEVs)
hold
great
regenerative
potential,
and
their
therapeutic
efficacy
hinges
on
the
delivery
kinetics
of
sEVs.
Achieving
rapid
stable
loading,
along
precisely
controlled
release
sEVs,
necessitates
affinity
modifications
biomaterials.
Here,
we
provide
a
quantitative
description
interaction
between
sEVs
various
molecules
(i.e.,
polydopamine
(PDA),
tannic
acid
(TA),
heparin,
polyethylenimine
(PEI),
calcium
phosphate
(CaP))
through
molecular
dynamics
simulation.
The
strengths
followed
order
PDA
<
heparin
TA
CaP
PEI.
To
tailor
stem
cells
from
human
exfoliated
deciduous
teeth
(SHED)-derived
concentration-dependent
bioactivities,
employed
two
representative
molecules,
namely
CaP,
to
modify
PLGA
porous
microscaffolds
(PLGA
MS),
resulting
in
PDA-modified
MS
(PDA@MS)
biomineralized
(B/PDA@MS).
B/PDA@MS
exhibited
highest
loading
efficiency
(>20
μg/mg
microscaffolds)
optimized
profile
over
21
days.
Upon
injection
into
5
mm
defect
rat
cranial
bone,
sEV-loaded
demonstrated
level
bone
regeneration,
new
volume
fraction
(BV/TV)
mineral
density
(BMD)
reaching
64.0%
604.5
mg/cm3
within
8
weeks,
respectively.
This
work
not
only
presents
microscaffold
sustained
high
osteogenic
potential
but
also
offers
guidance
further
design
translation
sEV-functionalized
biomaterials
broader
applications.
Journal of Asthma and Allergy,
Journal Year:
2024,
Volume and Issue:
Volume 17, P. 935 - 947
Published: Sept. 1, 2024
Asthma
is
a
chronic
inflammatory
disorder
of
the
airways,
characterized
by
complex
interplay
genetic,
environmental,
and
immunological
factors
that
contribute
to
its
onset
progression.
Recent
advances
in
researches
have
illuminated
critical
role
exosomal
microRNAs
(miRNAs)
pathogenesis
development
asthma.
Exosomes
are
nano-sized
extracellular
vesicles
facilitate
intercellular
communication
transporting
variety
bioactive
molecules,
including
miRNAs,
play
crucial
regulating
gene
expression
immune
responses,
which
central
processes
underlying
Exosomal
miRNAs
emerging
as
key
players
asthma
due
their
involvement
various
aspects
disease,
regulation
inflammation,
airway
hyperresponsiveness,
remodeling.
Their
ability
influence
behavior
target
cells
tissues
makes
them
valuable
both
diagnostic
biomarkers
potential
therapeutic
targets.
This
review
aims
provide
comprehensive
overview
biogenesis
exosomes,
functional
roles
asthma,
clinical
potential.
It
will
explore
mechanisms
these
pathophysiology,
discuss
utility
diagnosing
monitoring
highlight
ongoing
research
efforts
harness