Nature Communications,
Journal Year:
2019,
Volume and Issue:
10(1)
Published: Sept. 12, 2019
Abstract
Astroglia
play
active
and
diverse
roles
in
modulating
neuronal/synaptic
functions
the
CNS.
How
these
astroglial
are
regulated,
especially
by
neuronal
signals,
remains
largely
unknown.
Exosomes,
a
major
type
of
extracellular
vesicles
(EVs)
that
originate
from
endosomal
intraluminal
(ILVs),
have
emerged
as
new
intercellular
communication
process.
By
generating
cell-type-specific
ILVs/exosome
reporter
(CD63-GFP
f/f
)
mice
immuno-EM/confocal
image
analysis,
we
found
CD63-GFP
+
ILVs
primarily
localized
soma
dendrites,
but
not
axonal
terminals
vitro
vivo.
Secreted
exosomes
contain
subset
microRNAs
(miRs)
is
distinct
miR
profile
neurons.
These
miRs,
neuron-specific
miR-124-3p,
potentially
internalized
into
astrocytes.
MiR-124-3p
further
up-regulates
predominant
glutamate
transporter
GLT1
suppressing
GLT1-inhibiting
miRs.
Our
findings
suggest
previously
undescribed
exosomal
miR-mediated
genetic
regulation
astrocyte
functions,
opening
frontier
understanding
CNS
communication.
Science,
Journal Year:
2020,
Volume and Issue:
367(6478)
Published: Feb. 7, 2020
Clinical
uses
of
cellular
communication
Exosomes
are
a
type
extracellular
vesicle
that
contain
constituents
(protein,
DNA,
and
RNA)
the
cells
secrete
them.
They
taken
up
by
distant
cells,
where
they
can
affect
cell
function
behavior.
Intercellular
through
exosomes
seems
to
be
involved
in
pathogenesis
various
disorders,
including
cancer,
neurodegeneration,
inflammatory
diseases.
In
Review,
Kalluri
LeBleu
discuss
biogenesis
disease,
highlighting
areas
more
research
is
needed.
also
potential
clinical
applications
exosome
profiling
for
diagnostics
exosome-mediated
delivery
therapeutics
target
disease
cells.
Science
,
this
issue
p.
eaau6977
Journal of Extracellular Vesicles,
Journal Year:
2024,
Volume and Issue:
13(2)
Published: Feb. 1, 2024
Extracellular
vesicles
(EVs),
through
their
complex
cargo,
can
reflect
the
state
of
cell
origin
and
change
functions
phenotypes
other
cells.
These
features
indicate
strong
biomarker
therapeutic
potential
have
generated
broad
interest,
as
evidenced
by
steady
year-on-year
increase
in
numbers
scientific
publications
about
EVs.
Important
advances
been
made
EV
metrology
understanding
applying
biology.
However,
hurdles
remain
to
realising
EVs
domains
ranging
from
basic
biology
clinical
applications
due
challenges
nomenclature,
separation
non-vesicular
extracellular
particles,
characterisation
functional
studies.
To
address
opportunities
this
rapidly
evolving
field,
International
Society
for
Vesicles
(ISEV)
updates
its
'Minimal
Information
Studies
Vesicles',
which
was
first
published
2014
then
2018
MISEV2014
MISEV2018,
respectively.
The
goal
current
document,
MISEV2023,
is
provide
researchers
with
an
updated
snapshot
available
approaches
advantages
limitations
production,
multiple
sources,
including
culture,
body
fluids
solid
tissues.
In
addition
presenting
latest
art
principles
research,
document
also
covers
advanced
techniques
that
are
currently
expanding
boundaries
field.
MISEV2023
includes
new
sections
on
release
uptake
a
brief
discussion
vivo
study
Compiling
feedback
ISEV
expert
task
forces
more
than
1000
researchers,
conveys
research
facilitate
robust
discoveries
move
field
forward
even
rapidly.
Theranostics,
Journal Year:
2017,
Volume and Issue:
8(1), P. 237 - 255
Published: Nov. 20, 2017
Exosomes
are
common
membrane-bound
nanovesicles
that
contain
diverse
biomolecules,
such
as
lipids,
proteins,
and
nucleic
acids.Exosomes
derived
from
cells
through
exocytosis,
ingested
by
target
cells,
can
transfer
biological
signals
between
local
or
distant
cells.Exosome
secretion
is
a
constitutive
phenomenon
involved
in
both
physiological
pathological
processes
determines
the
exosomal
surface
molecules
contents.Hence,
we
exploit
exosomes
biomarkers,
vaccines
drug
carriers
modify
them
rationally
for
therapeutic
interventions.However,
it
still
challenge
to
identify,
isolate
quantify
accurately,
efficiently
selectively.Further
studies
on
will
explore
their
potential
translational
medicine
provide
new
avenues
creation
of
effective
clinical
diagnostics
strategies;
use
these
applications
be
called
exosome
theranostics.This
review
describes
fundamental
formation
uptake.In
addition,
roles
biology
also
illustrated
with
focus
how
exploited
engineered
powerful
tools
medicine.
ACS Nano,
Journal Year:
2016,
Volume and Issue:
10(4), P. 3886 - 3899
Published: March 15, 2016
Recent
research
has
demonstrated
that
all
body
fluids
assessed
contain
substantial
amounts
of
vesicles
range
in
size
from
30
to
1000
nm
and
are
surrounded
by
phospholipid
membranes
containing
different
membrane
microdomains
such
as
lipid
rafts
caveolae.
The
most
prominent
representatives
these
so-called
extracellular
(EVs)
nanosized
exosomes
(70-150
nm),
which
derivatives
the
endosomal
system,
microvesicles
(100-1000
produced
outward
budding
plasma
membrane.
Nanosized
EVs
released
almost
cell
types
mediate
targeted
intercellular
communication
under
physiological
pathophysiological
conditions.
Containing
cell-type-specific
signatures,
have
been
proposed
biomarkers
a
variety
diseases.
Furthermore,
according
their
physical
functions,
selected
used
therapeutic
agents
immune
therapy,
vaccination
trials,
regenerative
medicine,
drug
delivery.
Undoubtedly,
rapidly
emerging
field
basic
applied
EV
will
significantly
influence
biomedicinal
landscape
future.
In
this
Perspective,
we,
network
European
scientists
clinical,
academic,
industry
settings
collaborating
through
H2020
Cooperation
Science
Technology
(COST)
program
Network
on
Microvesicles
Exosomes
Health
Disease
(ME-HAD),
demonstrate
high
potential
for
both
diagnostic
(i.e.,
theranostic)
areas
nanomedicine.
Frontiers in Cellular Neuroscience,
Journal Year:
2018,
Volume and Issue:
12
Published: Sept. 27, 2018
Microglia
are
ramified
cells
that
exhibit
highly
motile
processes,
which
continuously
survey
the
brain
parenchyma
and
react
to
any
insult
CNS
homeostasis.
Although
microglia
have
long
been
recognized
as
a
crucial
player
in
generating
maintaining
inflammatory
responses
CNS,
now
it
has
become
clear,
their
function
much
more
diverse,
particularly
healthy
brain.
The
innate
immune
response
phagocytosis
represent
only
little
segment
of
functional
repertoire
also
includes
maintenance
biochemical
homeostasis,
neuronal
circuit
maturation
during
development
experience-
dependent
remodeling
circuits
adult
Being
equipped
by
numerous
receptors
cell
surface
molecules
can
perform
bidirectional
interactions
with
other
types
CNS.
There
is
accumulating
evidence
showing
neurons
inform
about
status
thus
capable
controlling
microglial
activation
motility
while
modulate
activities.
This
review
addresses
topic:
how
communicate
brain,
including
fractalkine
signaling,
secreted
soluble
factors
extracellular
vesicles.
We
summarize
current
state
knowledge
physiological
role
mature
further
highlight
contribution
pathologies
such
Alzheimer's
Parkinson's
disease,
ischemia,
traumatic
injury,
tumour
well
neuropsychiatric
diseases
(depression,
bipolar
disorder
schizophrenia).
Theranostics,
Journal Year:
2019,
Volume and Issue:
9(10), P. 2910 - 2923
Published: Jan. 1, 2019
Rationale:
Microglia
play
a
critical
role
in
modulating
cell
death
and
neurobehavioral
recovery
response
to
brain
injury
either
by
direct
cell-cell
interaction
or
indirect
secretion
of
trophic
factors.Exosomes
secreted
from
cells
are
well
documented
deliver
bioactive
molecules
recipient
modulate
function.Here,
we
aimed
identify
whether
M2
microglia
exert
neuroprotection
after
ischemic
attack
through
an
exosome-mediated
interaction.Methods:
microglia-derived
exosomes
were
intravenously
injected
into
the
mouse
immediately
middle
cerebral
artery
occlusion.Infarct
volume,
neurological
score,
neuronal
apoptosis
examined
3
days
attack.Exosome
RNA
target
protein
expression
levels
neurons
tissue
determined
for
mechanistic
study.Results:
Our
results
showed
that
taken
up
vitro
vivo.M2
exosome
treatment
attenuated
oxygen-glucose
deprivation
(p<0.05).In
vivo
significantly
reduced
infarct
volume
behavioral
deficits
transient
ischemia
(p<0.05),whereas
injection
miR-124
knockdown
(miR-124k/d)
partly
reversed
neuroprotective
effect.Our
study
further
demonstrated
ubiquitin-specific
protease
14
(USP14)
was
downstream
miR-124.Injection
miR-124k/d
plus
USP14
inhibitor,
IU1,
achieved
comparable
effect
as
alone.Conclusions:
We
promoted
survival
via
exosomal
its
USP14.M2
represent
promising
avenue
treating
stroke.