Abstract
Extracellular
vesicles
(EVs)
are
evolutionarily
conserved
communication
mediators
that
play
key
roles
in
the
development
of
periodontal
disease
as
well
regeneration
processes.
This
concise
review
first
outlines
pathogenic
mechanisms
through
which
EVs
derived
from
bacteria
lead
to
progression
periodontitis,
with
a
focus
on
enrichment
virulence
factors,
amplification
immune
responses,
and
induction
bone
destruction
aspects
influenced
by
bacterial
EVs.
aims
elucidate
positive
effects
mesenchymal
stem
cells
(MSC-EVs)
tissue
regeneration.
In
particular,
anti-inflammatory
properties
MSC-EVs
their
impact
intricate
interplay
between
MSCs
various
cells,
including
macrophages,
dendritic
T
described.
Moreover,
recent
advancements
regarding
repair-promoting
functions
detailed,
highlighting
underlying
ability
promote
osteogenesis,
cementogenesis,
angiogenesis,
homing
thus
contributing
significantly
Furthermore,
this
provides
insights
into
therapeutic
efficacy
treating
periodontitis
within
clinical
context.
By
summarizing
current
knowledge,
provide
comprehensive
understanding
how
can
be
harnessed
for
treatment
diseases.
Finally,
discussion
is
presented
challenges
lie
ahead
potential
practical
implications
translating
EV-based
therapies
practices
periodontitis.
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(9), P. 8530 - 8550
Published: April 28, 2023
Exosomes
(EXs)
shed
by
mesenchymal
stem
cells
(MSCs)
are
potent
therapeutic
agents
that
promote
wound
healing
and
regeneration,
but
when
used
alone
in
vivo,
their
potency
is
diminished
rapid
clearance
bioactivity
loss.
Inspired
the
biotin-avidin
interaction,
we
developed
a
simple
yet
versatile
method
for
immobilization
of
MSC-derived
EXs
(MSC-EXs)
into
hydrogels
achieved
sustained
release
regenerative
purposes.
First,
biotin-modified
gelatin
methacryloyl
(Bio-GelMA)
was
fabricated
grafting
NHS-PEG12-biotin
onto
amino
groups
GelMA.
Biotin-modified
MSC-EXs
(Bio-EXs)
were
then
synthesized
using
an
situ
self-assembling
biotinylation
strategy,
which
provided
sufficient
binding
sites
MSC-EX
delivery
with
little
effect
on
cargo
composition.
Thereafter,
Bio-EXs
immobilized
Bio-GelMA
via
streptavidin
to
generate
Bio-GelMA@Bio-EX
hydrogels.
An
vitro
analysis
demonstrated
could
be
taken
up
macrophages
exerted
immunomodulatory
effects
similar
those
MSC-EXs,
7
days.
After
subcutaneous
transplantation,
more
constant
retention
observed
28
When
placed
artificial
periodontal
multitissue
defect,
functionalized
exhibited
optimized
performance
regrow
complex
tissues,
including
acellular
cementum,
ligaments
(PDLs),
alveolar
bone.
In
this
context,
robust
promoted
macrophage
polarization
toward
M2
phenotype.
Our
findings
demonstrate
delivered
aid
system
exhibit
macrophage-modulating
repair-promoting
functions
suggest
universal
approach
development
MSC-EX-functionalized
biomaterials
advanced
therapies.
Acta Biomaterialia,
Journal Year:
2024,
Volume and Issue:
180, P. 18 - 45
Published: April 17, 2024
Bacterial
extracellular
vesicles
(BEVs)
are
naturally
occurring
bioactive
membrane-bound
nanoparticles
released
by
both
gram-negative
and
gram-positive
bacterial
species,
exhibiting
a
multifaceted
role
in
mediating
host-microbe
interactions
across
various
physiological
conditions.
Increasing
evidence
supports
BEVs
as
essential
mediators
of
cell-to-cell
communicaiton,
influencing
pathogenicity,
disease
mechanisms,
modulating
the
host
immune
response.
However,
extent
to
which
these
BEV-mediated
actions
can
be
leveraged
predict
onset,
guide
treatment
strategies,
determine
clinical
outcomes
remains
uncertain,
particularly
terms
their
translation
potentials.
This
review
briefly
describes
BEV
biogenesis
internalisation
recipient
cells
summarises
methods
for
isolation
characterization,
understanding
composition
cargo.
Further,
it
discusses
potential
biofluid-associated
biomarkers
diseases,
spanning
cancer
non-cancerous
Following
this,
we
outline
ongoing
human
trials
using
vaccine
development.
In
addition
diagnostics,
this
explores
emerging
research
natural
or
engineered
smart
nanomaterials
applications
anti-cancer
therapy
bone
regeneration.
discussion
extends
key
factors
unlocking
BEVs,
such
standardization
characterisation,
well
other
hurdles
translating
findings
setting.
We
propose
that
addressing
through
collaborative
efforts
well-designed
holds
fully
harnessing
BEVs.
As
field
advances,
suggests
BEV-based
nanomedicine
has
revolutionize
management,
paving
way
innovative
diagnosis,
therapeutics,
personalized
medicine
approaches.
STATEMENT
OF
SIGNIFICANCE:
Extracellular
(EVs)
from
bacteria
serve
multifunctional
biomaterials
fields
biomedicine,
bioengineering,
biomaterials.
majority
current
studies
focus
on
host-derived
EVs,
leaving
gap
comprehensive
bacteria-derived
EVs
(BEVs).
Although
offer
an
attractive
option
drug
delivery
systems,
unique
nanostructure
easy-to-modify
functions
make
them
method
diagnosis
Our
work
among
pioneering
investigating
nanobiomaterials
plays
crucial
development
diseases
therapeutic
interventions.
Journal of Periodontal Research,
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 17, 2024
Abstract
Periodontitis
is
a
chronic
inflammatory
disease
caused
by
dysbiotic
biofilms
and
destructive
host
immune
responses.
Extracellular
vesicles
(EVs)
are
circulating
nanoparticles
released
microbes
cells
involved
in
cell‐to‐cell
communication,
found
body
biofluids,
such
as
saliva
gingival
crevicular
fluid
(GCF).
EVs
mainly
may
hold
promise
for
diagnostic
therapeutic
purposes.
Periodontal
research
has
examined
the
potential
involvement
of
bacterial‐
host‐cell‐derived
pathogenesis,
diagnosis,
therapy,
but
data
remains
scarce
on
cell‐
or
microbial‐derived
EVs.
In
this
narrative
review,
we
first
provide
an
overview
role
microbial
host‐derived
pathogenesis.
Recent
studies
reveal
that
Porphyromonas
gingivalis
Aggregatibacter
actinomycetemcomitans
‐derived
outer
membrane
(OMVs)
can
activate
cytokine
release
cells,
while
M1
macrophage
contribute
to
bone
loss.
Additionally,
summarised
current
vitro
pre‐clinical
utilisation
cell
tools
context
periodontal
treatment.
Studies
indicate
from
M2
macrophages
dendritic
promote
regeneration
animal
models.
While
bacterial
remain
underexplored
preliminary
suggests
P.
OMVs
vaccine
candidates.
Finally,
acknowledge
limitations
present
field
translating
derived
periodontology.
It
concluded
cell‐derived
have
periodontitis
pathogenesis
hence
be
useful
studying
pathophysiology,
treatment
monitoring
biomarkers.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 11, 2024
Harnessing
the
developmental
events
of
mesenchymal
condensation
to
direct
postnatal
dental
stem
cell
aggregation
represents
a
cutting-edge
and
promising
approach
tooth
regeneration.
Tooth
avulsion
is
among
most
prevalent
serious
injuries,
odontogenic
aggregates
assembled
by
cells
from
human
exfoliated
deciduous
teeth
(SHED)
have
proven
effective
in
revitalizing
avulsed
after
replantation
clinical
trial.
However,
whether
how
SHED
(SA)
communicate
with
recipient
components
promote
synergistic
tissue
regeneration
support
replanted
remains
elusive.
Here,
it
shown
that
SA-mediated
involves
periodontal
restoration
recovery
Gli1
Journal of Orthopaedic Surgery and Research,
Journal Year:
2025,
Volume and Issue:
20(1)
Published: Jan. 9, 2025
To
assess
the
therapeutic
effects
of
mesenchymal
stem
cell
(MSC)-derived
exosome
therapy
on
periodontal
regeneration
and
identify
treatment
factors
associated
with
enhanced
in
recent
preclinical
studies.
Searches
were
conducted
PubMed,
Cochrane
Library,
EMBASE,
Web
Science
databases
until
October
10,
2024.
A
risk
bias
(ROB)
assessment
was
performed
using
SYRCLE
tool.
Osteogenic-related
parameters
used
as
primary
outcome
measures.
In
total,
1360
articles
identified,
which
17
studies
based
MSC-derived
therapy,
they
demonstrated
a
beneficial
effect
BV/TV
(SMD
=
13.99;
95%
Cl
10.50,
17.48;
p
<
0.00001),
CEJ-ABC
-0.22;
-0.31,
-0.13;
BMD
0.29;
0.14,
0.45;
0.0002),
Tp.Sp
-0.08;
Cl=
-0.15,
-0.02;
0.02)
compared
control
group.
However,
no
significant
differences
observed
Tp.Th
0.03;
CI
0.00,
0.07;
0.09)
between
exosome-treated
group
Additionally,
subgroup
analysis
indicated
that
preconditioned
exosomes
(p
0.03)
significantly
improved
BV/TV.
contrast,
there
enhancement
respect
to
application
method
0.29),
frequency
0.10),
duration
0.15),
or
source
MSCs
0.31).
show
great
promise
for
enhancing
quality
regeneration.
more
standardized
robust
trials
are
needed
reduce
heterogeneity
across
confirm
by
exosomes.
CRD42024546236.
Journal of Inflammation Research,
Journal Year:
2025,
Volume and Issue:
Volume 18, P. 1317 - 1331
Published: Jan. 1, 2025
Periodontitis
is
a
prevalent
yet
frequently
overlooked
oral
disease
that
linked
to
range
of
systemic
conditions.
Although
basic
treatment
and
periodontal
surgery
can
alleviate
the
symptoms
periodontitis
certain
extent,
severe
tissue
defects
or
refractory
cases
not
effective.
Extracellular
vesicles
(EVs)
are
subcellular
lipid
bilayer
particles
come
from
variety
sources
in
biological
fluids
vertebrates.
They
play
key
role
intercellular
communication
by
transporting
multiple
signaling
molecules.
Recent
research
has
indicated
EVs
derived
pathogens
trigger
periodontitis,
exacerbate
damage,
potentially
disseminate
other
parts
body,
leading
Conversely,
extracellular
dental
stem
cells
(DSCs)
have
demonstrated
ability
regulate
local
immune
environment
foster
regeneration
repair
tissues,
positioning
them
as
promising
candidate
for
cell-free
therapeutic
approaches
periodontitis.
This
review
aims
summarize
latest
on
involvement
different
pathogenesis
especially
systematically
elucidate
mechanism
secreted
periodontitis-related
diseases
first
time.
By
uncovering
these
complex
regulatory
processes,
new
more
effective
be
explored
battle
against
its
associated
diseases.
Oral Diseases,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 27, 2025
ABSTRACT
Objective
The
Porphyromonas
gingivalis
outer
membrane
vesicles
(
P.
OMVs)
carry
toxins
that
contribute
to
the
onset
and
progression
of
periodontitis.
These
OMVs
have
been
implicated
in
host
cell
invasion
damage.
This
study
aimed
determine
role
potential
mechanisms
on
periodontal
inflammation.
Methods
A
model
PDLSCs
induced
by
was
developed,
changes
their
biological
functions
were
examined.
We
established
a
rat
periodontitis
confirm
whether
OMV
promotes
inflammatory
phenotype.
Additionally,
which
impair
osteogenic
differentiation
capacity
investigated.
Results
inhibited
proliferation,
promoted
apoptosis
suppressed
osteogenesis
PDLSCs,
while
promoting
phenotype
vivo.
Furthermore,
mechanistic
studies
revealed
pretreatment
with
4‐phenylbutyric
acid
(4‐PBA)
prevented
OMVs‐induced
activation
PERK
pathway
restored
PDLSCs.
Conclusions
demonstrate
exacerbates
inhibits
regenerative
function
potentially
through
involving
endoplasmic
reticulum
dysfunction.
Frontiers in Cellular and Infection Microbiology,
Journal Year:
2023,
Volume and Issue:
13
Published: Oct. 11, 2023
P.
gingivalis
(W83),
as
the
keystone
pathogen
in
chronic
periodontitis,
has
been
found
to
be
tightly
bound
systemic
diseases.
Outer
membrane
vesicles
(OMVs)
produced
by
(W83)
are
thought
serve
key
functions
bacterial
virulence
and
pathogenicity.
This
study
aims
comprehend
biological
of
OMVs
isolated
from
different
growth
stages
comparing
their
physicochemical
properties
pathogenicity.Protein
composition
was
analyzed
via
isotope-labeled
relative
absolute
quantification
(iTRAQ).
Macrophage
polarization
expression
IL-6
IL-1β
were
detected.
The
proliferation,
migration,
osteogenic
differentiation,
IL-1b/NLRP3
periodontal
ligament
stem
cells
(PDLSCs)
evaluated.
gingivalis/P.
OMVs-induced
models
also
constructed
Sprague
Dawley
rats.The
protein
demonstrated
obvious
differences
ranging
25
KDa
75
KDa.
In
results
flow
cytometry,
we
that
vitro
experiments
M1
subtype
macrophages
more
abundant
late-log
stationary
groups
which
boosted
production
inflammatory
cytokines
than
pre-log
OMVs.
Compared
OMVs,
had
pronounced
inhibitory
effects
on
early
osteogenesis
PDLSCs.
NLRP3
inflammasome
activated
a
larger
extent
group.
Micro-computed
tomography
(Micro
CT),
hematoxylin-eosin
staining
(HE),
tartrate
acid
phosphatase
(TRAP)
showed
damage
group
worse
group,
but
almost
equal
positive
control
(P.
gingivalis).In
general,
both
vivo
have
significant
pathogenicity
disease.
Vaccines,
Journal Year:
2024,
Volume and Issue:
12(6), P. 619 - 619
Published: June 4, 2024
Porphyromonas
gingivalis
(Pg),
a
Gram-negative
anaerobic
bacterium
found
in
dental
plaque
biofilm
within
periodontal
pockets,
is
the
primary
pathogenic
microorganism
responsible
for
chronic
periodontitis.
Infection
by
Pg
significantly
impacts
development
and
progression
of
various
diseases,
underscoring
importance
eliminating
this
effective
clinical
treatment.
While
antibiotics
are
commonly
used
to
combat
Pg,
rise
antibiotic
resistance
poses
challenge
complete
eradication.
Thus,
prevention
infection
paramount.
Research
suggests
that
surface
antigens
such
as
fimbriae,
outer
membrane
proteins,
gingipains,
can
potentially
be
utilized
vaccine
trigger
protective
immune
responses.
This
article
overviews
these
antigens,
discusses
advancements
mucosal
adjuvants
(including
immunostimulant
vaccine-delivery
adjuvants),
their
application
development.
Furthermore,
review
examines
advantages
disadvantages
different
pathways
common
routes
immunization.
By
summarizing
current
landscape
vaccines,
addressing
existing
challenges,
highlighting
potential
offers
new
insights
advancement
implementation
vaccines.