Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Aug. 17, 2023
Abstract
Background:
Intravenous
administration
of
fibrinolytic
drugs,
such
as
recombinant
tissue
plasminogen
activator
(rtPA)
is
the
standard
treatment
acute
thrombotic
diseases.
However,
current
fibrinolytics
exhibit
limited
clinical
efficacy
because
their
short
plasma
half-lives
and
risk
hemorrhagic
transformations.
Platelet
membrane-based
nanocarriers
have
received
increasing
attention
for
ischemic
stroke
therapies,
they
natural
thrombus-targeting
activity,
can
prolong
half-life
therapy,
reduce
side
effects.
In
this
study,
we
gone
further
in
developing
platelet-derived
(defined
cellsomes)
to
encapsulate
protect
rtPA
from
degradation.
Following
lyophilization
characterization,
formulation
properties,
biocompatibility,
therapeutic
effect,
hemorrhages
were
later
investigated
a
thromboembolic
model
mice.
Results:
Cellsomes
200
nm
size
loaded
with
generated
membrane
fragments
human
platelets.
The
process
did
not
influence
nanocarrier
distribution,
morphology,
colloidal
stability
conferring
particle
preservation
long-term
storage.
Encapsulated
cellsomes
showed
be
effective
free
at
equal
concentration
without
transformations
or
altering
immune
response.
Conclusions:
This
study
provides
evidence
safe
use
lyophilized
biomimetic
nanomedicine
precise
thrombolytic
stroke.
We
successfully
addressed
one
main
barriers
drug
application
commercialization,
storage
nanomedicines,
overcoming
potential
chemical
physical
instabilities
nanomedicines
when
stored
an
aqueous
buffer.
Journal of Nanobiotechnology,
Journal Year:
2024,
Volume and Issue:
22(1)
Published: Jan. 3, 2024
Intravenous
administration
of
fibrinolytic
drugs,
such
as
recombinant
tissue
plasminogen
activator
(rtPA)
is
the
standard
treatment
acute
thrombotic
diseases.
However,
current
fibrinolytics
exhibit
limited
clinical
efficacy
because
their
short
plasma
half-lives
and
risk
hemorrhagic
transformations.
Platelet
membrane-based
nanocarriers
have
received
increasing
attention
for
ischemic
stroke
therapies,
they
natural
thrombus-targeting
activity,
can
prolong
half-life
therapy,
reduce
side
effects.
In
this
study
we
gone
further
in
developing
platelet-derived
(defined
cellsomes)
to
encapsulate
protect
rtPA
from
degradation.
Following
lyophilization
characterization,
formulation
properties,
biocompatibility,
therapeutic
effect,
hemorrhages
were
later
investigated
a
thromboembolic
model
mice.
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(15), P. 8539 - 8539
Published: Aug. 5, 2024
Ischemic
stroke
is
a
serious
neurological
disease
involving
multiple
complex
physiological
processes,
including
vascular
obstruction,
brain
tissue
ischemia,
impaired
energy
metabolism,
cell
death,
ion
pump
function,
and
inflammatory
response.
In
recent
years,
there
has
been
significant
interest
in
membrane-functionalized
biomimetic
nanoparticles
as
novel
therapeutic
approach.
This
review
comprehensively
explores
the
mechanisms
importance
of
using
these
to
treat
acute
ischemic
with
special
emphasis
on
their
potential
for
actively
targeting
therapies
through
membranes.
We
provide
an
overview
pathophysiology
present
advances
study
nanoparticles,
emphasizing
drug
delivery
precision-targeted
therapy.
paper
focuses
bio-nanoparticles
encapsulated
bionic
membranes
target
treatment.
It
highlights
mechanism
action
research
progress
regarding
different
types
bi-onic
such
erythrocytes,
neutrophils,
platelets,
exosomes,
macrophages,
neural
stem
cells
treating
while
improve
tissue's
state
attenuate
damage
dysfunction.
Through
in-depth
exploration
benefits
provided
by
reducing
injury
dysfunction,
this
also
provides
comprehensive
cells'
along
that
ameliorate
However,
it
undeniable
are
still
some
challenges
limitations
terms
biocompatibility,
safety,
practical
applications
clinical
translation.
Neuroglia,
Journal Year:
2025,
Volume and Issue:
6(1), P. 9 - 9
Published: Feb. 21, 2025
Background:
Neurological
disorders
such
as
Alzheimer’s
disease
(AD),
Parkinson’s
(PD),
stroke,
and
spinal
cord
injury
(SCI)
are
significant
global
health
challenges
due
to
their
complex
pathology
limited
therapeutic
options.
Conventional
treatments
often
fail
efficiently
cross
the
blood–brain
barrier
(BBB),
leading
poor
bioavailability
systemic
toxicity.
This
narrative
review
explores
potential
of
nanomedicine
in
addressing
these
limitations
advancing
targeted
therapies
for
neural
disorders.
Methods:
examines
recent
studies
on
use
engineered
nanoparticles
(NPs),
including
liposomes,
dendrimers,
micelles,
nanogels,
drug
delivery
multifunctional
theranostics
diseases.
It
evaluates
role
promoting
axon
regeneration,
reducing
neuroinflammation,
repairing
damage.
Additionally,
innovative
applications
gene
therapy
RNA-based
treatments,
CRISPR-Cas9
RNA
interference
(RNAi),
discussed.
Challenges
related
toxicity,
scalability,
affordability,
regulatory
barriers
highlighted,
along
with
strategies
address
issues.
Results:
Nanoparticles
have
shown
promise
crossing
BBB,
delivering
agents
tissues,
minimizing
off-target
effects.
Emerging
demonstrate
versatility
disease-specific
challenges.
However,
unresolved
issues
long-term
safety,
manufacturing
cost
continue
pose
Conclusions:
Nanomedicine
offers
a
promising
approach
overcoming
current
treatment
emphasizes
need
continued
interdisciplinary
efforts
translational
highlights
improve
outcomes
quality
life
patients
disorders,
SCI.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 5, 2025
Cerebral
ischemia-reperfusion
injury
(CI/RI)
is
currently
considered
a
significant
factor
affecting
the
prognosis
of
ischemic
stroke.
The
blood-brain
barrier
(BBB)
plays
multiple
roles
in
treatment
ofCI/RI.
BBB
leakage
allows
bloodborne
toxins
to
exacerbate
stroke
pathology.
Yet
as
physiological
that
separates
blood
from
brain,
also
poses
obstacle
therapeutic
drug
delivery.
Therefore,
it
essential
consider
both
crossing
and
repairing
process
CI/RI.
Leveraging
exceptional
benefits
nanoparticles
(NPs)
for
penetration
targeted
repair,
numerous
NPs
are
developed
promising
delivery
platforms.
Considering
complex
role
CI/RI,
this
review
delves
into
strategies
designing
cross
BBB,
focusing
on
peptide-modified
NPs,
cell-mediated
cell
membrane-derived
BBB-modulating
NPs.
Additionally,
summarizes
design
targeting
endothelial
cells
(ECs),
astrocytes,
those
aimed
at
regulating
microenvironment
repair
BBB.
On
basis,
reveals
prospects
challenges
designed
around
CI/RI
treatment.
And
highlights
need
combine
permeability
promotion
nanoparticle
based
achieve
more
effective
Journal of Tissue Engineering,
Journal Year:
2024,
Volume and Issue:
15
Published: Jan. 1, 2024
The
incidence
of
ischemic
stroke
(IS)
is
rising
in
tandem
with
the
global
aging
population.
There
an
urgent
need
to
delve
deeper
into
pathological
mechanisms
and
develop
new
neuroprotective
strategies.
In
present
review,
we
discuss
latest
advancements
research
on
various
nanodrug
delivery
systems
(NDDSs)
for
targeting
microglial
polarization
IS
treatment.
Furthermore,
critically
different
NDDSs
have
demonstrated
exceptional
qualities
effectively
permeate
blood–brain
barrier,
aggregate
at
site
injury,
target
specific
cell
types
within
brain
when
appropriately
modified.
Consequently,
considerable
potential
reshaping
phenotype
microglia
could
be
a
prospective
therapeutic
strategy
IS.
treatment
remains
challenge.
However,
this
review
provides
perspective
neuro-nanomedicine
therapies
centered
polarization,
thereby
inspiring
ideas
directions.
Journal of Nanobiotechnology,
Journal Year:
2024,
Volume and Issue:
22(1)
Published: Dec. 19, 2024
Hypoxic
ischemic
encephalopathy
(HIE)
refers
to
neonatal
hypoxic
brain
injury
caused
by
severe
asphyxia
during
the
perinatal
period.
With
a
high
incidence
rate
and
poor
prognosis,
HIE
accounts
for
2.4%
of
global
disease
burden,
imposing
heavy
burden
on
families
society.
Current
clinical
treatment
primarily
focuses
symptomatic
management
supportive
care.
Therefore,
developments
effective
strategies
new
drug
formulations
are
critical
improving
prognosis
patients.
In
order
protect
compromised
neurovascular
units
after
HIE,
we
prepared
membrane-fused
nanovesicles
delivering
rapamycin
si
EDN1
(TRCAM@RAPA@si
EDN1).
Due
homotypic
targeting
feature
nanovesicles,
employed
astrocyte
membranes
as
synthetic
materials
improve
astrocytes
in
while
reducing
clearance
circulatory
system.
Additionally,
surface
cell
membrane
was
modified
with
CXCR3
receptors,
enhancing
homing
infarcted
lesions.
Lipid
vesicles
were
TK
RVG29
transmembrane
peptides,
enabling
responsive
release
internal
drugs
blood-brain
barrier
penetration.
Internally
loaded
could
promote
protective
autophagy
astrocytes,
cellular
oxidative
stress,
reduce
expression
level
endothelin
gene,
thereby
secondary
damage
units.