Circulating
extracellular
microvesicles
(cEVs)
are
characterised
by
presenting
surface
antigens
of
parental
cells.
Since
their
biogenesis
involves
the
translocation
phosphatidylserine
(PS)
from
inner
to
outer-leaflet
plasma
membrane,
exposed
PS
has
been
considered
as
a
recognition
hallmark
cEVs.
However,
not
all
cEVs
externalise
PS.
In
this
study
we
have
phenotypically
and
quantitatively
flow
cytometry
with
special
attention
proportions
in
chronic
heart
failure
patients
(cHF;
n=119)
reference
non-HF
group
(n=21).
PS─-cEVs
were
predominantly
found
both
groups.
Parental
markers
showed
differential
pattern
depending
on
exposure.
Endothelium-derived
connexin
43-rich
mainly
significantly
increased
cHF.
On
contrary,
platelet-derived
mostly
PS+
non-HF.
We
observed
similar
levels
PS+-
subjects
when
analysing
immune
cell-derived
EVs,
but
there
was
subset-specific
difference
cHF
patients.
Indeed,
those
carrying
CD45+,
CD29+,
CD11b+
CD15+
PS+-cEVs,
while
CD14+,
CD3+
CD56+
PS─-cEVs.
conclusion,
endothelial
red
blood
cells
stressed
detected
high
shedding
Despite
PS+-cEVs
represent
two
distinct
cEV
populations,
release
potential
function
biomarkers
shuttles
for
cell
communication
seem
unrelated
content.
Molecules,
Journal Year:
2023,
Volume and Issue:
28(3), P. 969 - 969
Published: Jan. 18, 2023
Lipoprotein(a)
(Lp(a))
is
a
low-density
lipoprotein
(LDL)
cholesterol-like
particle
bound
to
apolipoprotein(a).
Increased
Lp(a)
levels
are
an
independent,
heritable
causal
risk
factor
for
atherosclerotic
cardiovascular
disease
(ASCVD)
as
they
largely
determined
by
variations
in
the
gene
(LPA)
locus
encoding
apo(a).
preferential
carrier
oxidized
phospholipids
(OxPL),
and
its
role
adversely
affects
vascular
inflammation,
lesions,
endothelial
function
thrombogenicity,
which
pathophysiologically
leads
(CV)
events.
Despite
this
crucial
of
Lp(a),
measurement
lacks
globally
unified
method,
and,
between
different
laboratories,
results
need
standardization.
Standard
antilipidemic
therapies,
such
statins,
fibrates
ezetimibe,
have
mediocre
effect
on
levels,
although
it
not
yet
clear
whether
treatments
can
affect
CV
events
prognosis.
This
narrative
review
aims
summarize
knowledge
regarding
mechanisms
mediating
atherosclerosis
thrombosis
discuss
current
diagnostic
therapeutic
potentials.
Immunological Reviews,
Journal Year:
2022,
Volume and Issue:
312(1), P. 6 - 19
Published: Aug. 22, 2022
Summary
Atherosclerotic
cardiovascular
disease
(ASCVD)
remains
the
leading
cause
of
global
mortality.
Extracellular
vesicles
(EVs)
are
small
phospholipid
that
convey
molecular
bioactive
cargoes
and
play
essential
roles
in
intercellular
communication
and,
hence,
a
multifaceted
role
health
disease.
The
present
review
offers
glimpse
into
current
state
up‐to‐date
concepts
on
EV
field.
It
also
covers
their
association
with
several
risk
factors
ischemic
conditions,
being
subclinical
atherosclerosis
utmost
relevance
for
prevention.
Interestingly,
we
show
EVs
hold
promise
as
prognostic
diagnostic
well
predictive
markers
ASCVD
precision
medicine
era.
We
then
report
atherothrombosis,
disentangling
mechanisms
involved
initiation,
progression,
complication
showing
direct
effect
context
arterial
thrombosis.
Finally,
potential
use
therapeutic
intervention
is
highlighted.
Environment International,
Journal Year:
2023,
Volume and Issue:
175, P. 107923 - 107923
Published: April 10, 2023
According
to
the
WHO,
entire
global
population
is
exposed
air
pollution
levels
higher
than
recommended
for
health
preservation.
Air
a
complex
mixture
of
nano-
micro-sized
particles
and
gaseous
components
that
poses
major
threat
public
health.
Among
most
important
pollutants,
causal
associations
have
been
established
between
particulate
matter
(PM),
mainly
<
2.5
μm,
cardiovascular
diseases
(CVD),
i.e.,
hypertension,
coronary
artery
disease,
ischemic
stroke,
congestive
heart
failure,
arrhythmias
as
well
total
mortality.
Aim
this
narrative
review
describe
critically
discuss
proatherogenic
effects
PM2.5
attributed
many
direct
or
indirect
comprising
endothelial
dysfunction,
chronic
low-grade
inflammatory
state,
increased
production
reactive
oxygen
species,
mitochondrial
dysfunction
activation
metalloproteases,
all
leading
unstable
arterial
plaques.
Higher
concentrations
pollutants
are
associated
with
presence
vulnerable
plaques
plaque
ruptures
witnessing
instability.
often
disregarded
CVD
risk
factor,
in
spite
fact
it
one
main
modifiable
factors
relevant
prevention
management
CVD.
Thus,
not
only
structural
actions
should
be
taken
order
mitigate
emissions,
but
professionals
also
take
care
counsel
patients
on
risks
pollution.
Biotechnology and Bioengineering,
Journal Year:
2023,
Volume and Issue:
120(9), P. 2742 - 2755
Published: June 15, 2023
Abstract
The
therapeutic
effects
of
human
mesenchymal
stromal
cells
(MSC)
have
been
attributed
mostly
to
their
paracrine
activity,
exerted
through
small‐secreted
extracellular
vesicles
(EVs)
rather
than
engraftment
into
injured
tissues.
Currently,
the
production
MSC‐derived
EVs
(MSC‐EVs)
is
performed
in
laborious
static
culture
systems
with
limited
manufacturing
capacity
using
serum‐containing
media.
In
this
work,
a
serum‐/xenogeneic‐free
microcarrier‐based
system
was
successfully
established
for
bone
marrow‐derived
MSC
cultivation
and
MSC‐EV
2
l
‐scale
controlled
stirred
tank
reactor
(STR)
operated
under
fed‐batch
(FB)
or
combined
continuous
perfusion
(FB/CP).
Overall,
maximal
cell
numbers
(3.0
±
0.12)
×
10
8
(5.3
0.32)
were
attained
at
Days
12
FB
FB/CP
cultures,
respectively,
MSC(M)
expanded
both
conditions
retained
immunophenotype.
MSC‐EVs
identified
conditioned
medium
collected
from
all
STR
cultures
by
transmission
electron
microscopy,
EV
protein
markers
Western
blot
analysis.
no
significant
differences
observed
between
isolated
two
feeding
approaches.
mean
sizes
163
5.27
nm
162
4.44
(
p
>
0.05)
concentrations
(2.4
0.35)
11
EVs/mL
0.48)
estimated
nanoparticle
tracking
analysis
respectively.
STR‐based
platform
optimized
herein
represents
major
contribution
toward
development
MSC‐
MSC‐EV‐based
products
as
promising
agents
Regenerative
Medicine
settings.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Feb. 2, 2024
Abstract
Lipoprotein
apheresis
(LA)
is
a
therapeutic
option
for
hyperlipoproteinemia(a)
(hyper-Lp(a))
and
atherosclerotic
cardiovascular
disease
(ASCVD).
LA
improves
blood
rheology,
reduces
oxidative
stress
parameters
endothelial
function.
The
underlying
molecular
mechanisms
of
beneficial
effects
are
unknown,
but
it
has
been
suggested
that
exhibits
multiple
activities
beyond
simply
removing
lipoproteins.
We
hypothesized
removes
not
only
lipoproteins,
also
extracellular
vesicles
(EVs).
To
test
this
hypothesis,
we
performed
prospective
study
in
22
patients
undergoing
hyper-Lp(a)
ASCVD.
Different
EVs
subtypes
were
measured
before
directly
after
LA,
7
days.
used
calibrated
flow
cytometry
to
detect
total
particle
concentration
(diameter
>
~
100
nm),
lipoproteins
200
nm,
RI
1.51),
EV
<
1.41),
concentrations
derived
from
erythrocytes
(CD235a+;
diameter
leukocytes
(CD45+;
1.41)
platelets
(CD61+,
PEVs;
1.41).
reduced
the
all
investigated
Lp(a)
was
lowered
by
64.5%
[(58%
–
71%);
p
0.001].
Plasma
nm
(CD61
+),
(CD45+)
(CD235a+)
decreased
single
procedure
42.7%
[(12.8–54.7);
=
0.005],
42.6%
[(29.7–54.1);
0.030]
26.7%
[(1.0–62.7);
0.018],
respectively,
compared
baseline.
All
returned
baseline
plasma
conclude,
Lp(a),
cell-derived
EVs,
which
may
contribute
effects.
iScience,
Journal Year:
2024,
Volume and Issue:
27(4), P. 109359 - 109359
Published: Feb. 29, 2024
Epicardial
adipose
tissue
(EAT)
is
a
fat
depot
located
between
the
myocardium
and
visceral
layer
of
epicardium,
which,
owing
to
its
location,
can
influence
surrounding
tissues
act
as
local
transducer
systemic
inflammation.
The
mechanisms
upon
which
such
depends
on
are
however
unclear.
Given
role
EAT
undoubtedly
has
in
scheme
cardiovascular
diseases
(CVDs),
understanding
impact
cellular
components
upmost
importance.
Extracellular
vesicles
(EVs)
constitute
promising
candidates
fill
gap
knowledge
concerning
unexplored
through
promotes
onset
progression
CVDs.
Owing
their
ability
transporting
active
biomolecules,
EAT-derived
EVs
have
been
reported
be
actively
involved
pathogenesis
ischemia/reperfusion
injury,
coronary
atherosclerosis,
heart
failure,
atrial
fibrillation.
Exploring
precise
functions
exert
this
context
may
aid
connecting
dots
European Journal of Cell Biology,
Journal Year:
2023,
Volume and Issue:
102(2), P. 151311 - 151311
Published: March 15, 2023
Platelet
extracellular
vesicles
(PEVs)
generated
upon
platelet
activation
may
play
a
role
in
inflammatory
pathologies
such
as
atherosclerosis.
Oxidized
low-density
lipoprotein
(oxLDL),
well-known
contributor
to
atherogenesis,
activates
platelets
and
presensitizes
them
for
by
other
agonists.
We
studied
the
effect
of
oxLDL
on
secretion,
composition,
functions
PEVs
using
contemporary
EV
analytics.
Platelets
were
activated
co-stimulation
with
thrombin
(T)
collagen
(C)
±
characterized
high-resolution
flow
cytometry,
nanoparticle
tracking
analysis,
proximity
extension
assay,
western
blot,
electron
microscopy.
The
macrophage
differentiation
functionality
was
examined
analyzing
surface
markers,
cytokine
transcriptome.
OxLDL
upregulated
TC-induced
formation
CD61+,
P-selectin+
phosphatidylserine+
PEVs.
Blocking
scavenger
receptor
CD36
significantly
suppressed
oxLDL+TC-induced
PEV
formation,
HDL
caused
slight
but
detectable
suppression.
protein
cargo
differed
between
from
stimulated
unstimulated
platelets.
Both
oxLDL+TC-
enhanced
HLA-DR
CD86
expression
decreased
CD11c
well
secretion
several
cytokines.
Pathways
related
cell
cycle
regulation
gene
expression,
immune
system
signaling
overrepresented
differentially
expressed
genes
TC
-treated
vs.
control
macrophages
oxLDL+TC
macrophages,
respectively.
In
conclusion,
we
speculate
that
contribute
proatherogenic
processes
increasing
number
provide
an
adhesive
procoagulant
surface,
contain
mediators,
subtly
finetune
expression.
iRadiology,
Journal Year:
2024,
Volume and Issue:
2(3), P. 240 - 259
Published: May 23, 2024
Abstract
Extracellular
vesicles
(EVs)
are
tiny
released
by
various
cells
that
contain
a
variety
of
proteins,
lipids,
and
nucleic
acids,
which
can
have
wide
range
effects
on
other
cells.
The
dynamic
composition
contents
EVs
serve
as
sensitive
biomarkers
for
diagnosing
monitoring
cardiovascular
diseases
(CVDs).
In
addition
to
their
diagnostic
potential,
therapeutic
agents
capable
precise
modulation
amelioration
CVDs,
because
innate
ability
encapsulate
deliver
bioactive
molecules.
This
growing
field
reveals
the
intricate
interplay
between
pathophysiology,
showing
act
messengers
intercellular
communication
CVD
regenerative
therapy.
dual
in
theranostics,
both
able
decode
nuanced
molecular
signatures
CVDs
potent
vehicles
targeted
interventions.
review
delves
into
evolving
landscape
EVs,
uncovering
prospects
emphasizing
importance
shaping
future
theranostics.