International Journal of Oral Science,
Год журнала:
2023,
Номер
15(1)
Опубликована: Авг. 2, 2023
Abstract
Carious
lesions
are
bacteria-caused
destructions
of
the
mineralised
dental
tissues,
marked
by
simultaneous
activation
immune
responses
and
regenerative
events
within
soft
pulp
tissue.
While
major
molecular
players
in
tooth
decay
have
been
uncovered
during
past
years,
a
detailed
map
cellular
landscape
diseased
is
still
missing.
In
this
study
we
used
single-cell
RNA
sequencing
analysis,
supplemented
with
immunostaining,
to
generate
comprehensive
atlas
carious
human
teeth.
Our
data
demonstrated
modifications
various
cell
clusters
teeth,
such
as
cells,
mesenchymal
stem
cells
(MSC)
fibroblasts,
when
compared
healthy
Active
response
tissue
accompanied
specific
changes
fibroblast
MSC
clusters.
These
include
upregulation
genes
encoding
extracellular
matrix
(ECM)
components,
including
COL1A1
Fibronectin
(FN1)
,
enrichment
cluster
myofibroblasts.
The
incremental
ECM
composition
tissues
were
further
confirmed
immunostaining
analyses.
Assessment
fibres
under
mechanical
strain
conditions
showed
significant
tension
reduction
ones.
present
demonstrate
molecular,
biomechanical
alterations
indicative
extensive
remodelling,
reminiscent
fibrosis
observed
other
organs.
This
teeth
can
facilitate
future
studies
pathologies
enable
comparative
analyses
across
International Journal of Molecular Sciences,
Год журнала:
2022,
Номер
23(11), С. 6356 - 6356
Опубликована: Июнь 6, 2022
The
success
of
regenerative
medicine
in
various
clinical
applications
depends
on
the
appropriate
selection
source
mesenchymal
stem
cells
(MSCs).
Indeed,
conditions,
quality
and
quantity
MSCs,
have
an
influence
growth
factors,
cytokines,
extracellular
vesicles,
secrete
bioactive
factors
milieu,
thus
influencing
result.
Thus,
optimal
should
harmonize
this
complex
setting
ensure
a
well-personalized
effective
treatment.
Mesenchymal
(MSCs)
can
be
obtained
from
several
sources,
including
bone
marrow
adipose
tissue,
already
used
orthopedic
applications.
In
sense,
for
bone,
dental,
oral
injuries,
MSCs
could
provide
innovative
therapy.
present
review
aims
to
compare
properties
(proliferation,
migration,
clonogenicity,
angiogenic
capacity,
differentiation
potential,
secretome)
derived
marrow,
dental
tissue
enable
clinicians
select
best
their
application
regeneration
delineate
new
translational
perspectives.
A
literature
was
conducted
using
search
engines
Web
Science,
Pubmed,
Scopus,
Google
Scholar.
An
analysis
different
publications
showed
that
all
sources
compared
(bone
(BM-MSCs),
(AT-MSCs),
(DT-MSCs))
are
good
options
promote
proper
migration
angiogenesis,
they
turn
out
useful
gingival,
pulp,
periodontal
regeneration.
particular,
DT-MSCs
better
proliferation
rates
AT
G-MSC
higher
clonogenicity.
widely
medicine,
preferable
ability.
Considering
among
BM-MSCs,
AT-MSCs,
as
potential
candidates
Nature Communications,
Год журнала:
2022,
Номер
13(1)
Опубликована: Авг. 16, 2022
Cranial
neural
crest
cells
are
an
evolutionary
innovation
of
vertebrates
for
craniofacial
development
and
function,
yet
the
mechanisms
that
govern
cell
fate
decisions
postmigratory
cranial
remain
largely
unknown.
Using
mouse
molar
as
a
model,
we
perform
single-cell
transcriptome
profiling
to
interrogate
diversification
cells.
We
reveal
landscape
transcriptional
heterogeneity
define
specific
cellular
domains
during
progression
cell-derived
dental
lineage
diversification,
find
each
domain
makes
contribution
distinct
mesenchymal
tissues.
Furthermore,
IGF
signaling-mediated
cell-cell
interaction
between
highlights
pivotal
role
autonomous
regulation
mesenchyme.
Importantly,
cell-type-specific
gene
regulatory
networks
in
mesenchyme
show
Foxp4
is
indispensable
differentiation
periodontal
ligament.
Our
atlas
provides
comprehensive
mechanistic
insight
into
process
odontogenic
populations.
Physiological Reviews,
Год журнала:
2023,
Номер
103(3), С. 1899 - 1964
Опубликована: Янв. 19, 2023
The
teeth
are
vertebrate-specific,
highly
specialized
organs
performing
fundamental
functions
of
mastication
and
speech,
the
maintenance
which
is
crucial
for
orofacial
homeostasis
further
linked
to
systemic
health
human
psychosocial
well-being.
However,
with
limited
ability
self-repair,
can
often
be
impaired
by
traumatic,
inflammatory,
progressive
insults,
leading
high
prevalence
tooth
loss
defects
worldwide.
Regenerative
medicine
holds
promise
achieve
physiological
restoration
lost
or
damaged
organs,
in
particular
an
evolving
framework
developmental
engineering
has
pioneered
functional
regeneration
harnessing
odontogenic
program.
As
a
key
event
morphogenesis,
mesenchymal
condensation
dictates
dental
tissue
formation
patterning
through
cellular
self-organization
signaling
interaction
epithelium,
provides
representative
decipher
organogenetic
mechanisms
leveraged
regenerative
purposes.
In
this
review,
we
summarize
how
spatiotemporally
assembles
from
stem
cells
(DSCs)
sequentially
mediates
development.
We
highlight
condensation-mimetic
efforts
based
on
ex
vivo
aggregation
DSCs,
have
achieved
functionally
robust
physiologically
relevant
after
implantation
animals
humans.
discussion
aspect
will
add
knowledge
development-inspired
strategies
offer
benefits
propel
clinical
organ
regeneration.
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Июнь 14, 2024
Periodontitis
affects
billions
of
people
worldwide.
To
address
relationships
periodontal
niche
cell
types
and
microbes
in
periodontitis,
we
generated
an
integrated
single-cell
RNA
sequencing
(scRNAseq)
atlas
human
periodontium
(34-sample,
105918-cell),
including
sulcular
junctional
keratinocytes
(SK/JKs).
SK/JKs
displayed
altered
differentiation
states
were
enriched
for
effector
cytokines
periodontitis.
Single-cell
metagenomics
revealed
37
bacterial
species
with
cell-specific
tropism.
Fluorescence
situ
hybridization
detected
intracellular
16
S
mRNA
signals
multiple
correlated
SK/JK
proinflammatory
phenotypes
situ.
Cell-cell
communication
analysis
predicted
keratinocyte-specific
innate
adaptive
immune
interactions.
Highly
multiplexed
immunofluorescence
(33-antibody)
peri-epithelial
foci,
cells
often
spatially
constrained
around
JKs.
Spatial
phenotyping
immunosuppressed
JK-microniches
SK-localized
tertiary
lymphoid
structures
Here,
demonstrate
impacts
on
interactomics
SK
JK
health
which
requires
further
investigation
to
support
precision
interventions
chronic
inflammation.
Oral
inflammatory
diseases
such
as
apical
periodontitis
are
common
bacterial
infectious
that
may
affect
the
periapical
alveolar
bone
tissues.
A
protective
process
occurs
simultaneously
with
tissue
destruction,
in
which
mesenchymal
stem
cells
(MSCs)
play
a
primary
role.
However,
systematic
and
precise
description
of
cellular
molecular
composition
microenvironment
affected
by
inflammation
is
lacking.
In
this
study,
we
created
single-cell
atlas
cell
populations
compose
healthy
disease
states.
We
investigated
changes
expression
frequency
patterns
related
to
periodontitis,
well
interactions
between
MSCs
immunocytes.
Our
results
highlight
an
enhanced
self-supporting
network
osteogenic
potential
within
during
periodontitis-associated
inflammation.
not
only
differentiated
toward
osteoblast
lineage
but
also
expressed
higher
levels
osteogenic-related
markers,
including
Sparc
Col1a1.
This
was
confirmed
tracing
transgenic
mouse
models
human
samples
from
oral
inflammatory-related
lesions.
summary,
current
study
provides
in-depth
immunocytes
both
identified
key
MSC
subclusters
their
biomarkers,
could
further
our
understanding
underlying
mechanisms
disease.
Taken
together,
these
enhance
heterogeneity
under
pathogenic
conditions.
provide
data
tool
for
investigators
better
appreciate
repertoire
progenitors
stress
responsive
importantly
help
design
new
therapeutic
targets
restore
lesions
caused
other
diseases.
Stem Cells International,
Год журнала:
2022,
Номер
2022, С. 1 - 20
Опубликована: Янв. 4, 2022
Human
dental
pulp
stem/stromal
cells
(hDPSCs)
derived
from
the
permanent
secondary
dentition
are
recognised
to
possess
certain
advantageous
traits,
which
support
their
potential
use
as
a
viable
source
of
mesenchymal
(MSCs)
for
regenerative
medicine-based
applications.
However,
well-established
heterogeneous
nature
hDPSC
subpopulations,
coupled
with
limited
numbers
within
tissues,
has
impeded
our
understanding
biology
and
translation
sufficient
quantities
these
laboratory
research,
through
successful
therapy
development
clinical
This
article
reviews
current
evidence
underpinning
molecular
basis
heterogeneity,
may
be
exploited
distinguish
individual
subpopulations
specific
or
superior
characteristics
medicine
Pertinent
unanswered
questions
still
remain,
regarding
developmental
origins,
hierarchical
organisation,
stem
cell
niche
locations
roles
in
heterogeneity
functions,
will
further
explored.
Ultimately,
greater
how
key
features,
such
surface,
senescence
other
relevant
genes,
protein
metabolic
markers,
delineate
between
contrasting
stemness,
proliferative,
multipotency,
immunomodulatory,
anti-inflammatory,
properties
is
required.
Such
knowledge
advancements
undoubtedly
lead
novel
screening,
isolation,
purification
strategies,
permitting
routine
effective
identification,
enrichment,
expansion
more
desirable
Furthermore,
innovative
measures
could
improved
expansion,
manufacture,
banking
procedures,
thereby
supporting
translational
hDPSC-based
therapies
future.
Summary
The
periodontal
complex
involves
the
hard
and
soft
tissues
which
support
dentition,
comprised
of
cementum,
bone,
ligament
(PDL).
Periodontitis,
a
prevalent
infectious
disease
periodontium,
threatens
integrity
these
causes
irreversible
damage.
Periodontal
therapy
aims
to
repair
ultimately
regenerate
toward
preserving
native
dentition
improving
physiologic
integration
dental
implants.
PDL
contains
multipotent
stem
cells,
have
robust
capacity
differentiate
into
various
types
cells
form
PDL,
alveolar
bone.
Selection
appropriate
growth
factors
biomaterial
matrices
facilitate
regeneration
are
critical
recapitulate
organization
function
complex.
Herein,
we
discuss
current
state
clinical
including
review
FDA‐approved
factors.
We
will
highlight
advances
in
preclinical
research
identifying
additional
capable
augment
similarly
synergistically,
regeneration's
predictability
long‐term
efficacy.
This
should
improve
readers'
understanding
molecular
cellular
processes
involving
essential
for
designing
comprehensive
therapeutic
approaches.
Japanese Dental Science Review,
Год журнала:
2022,
Номер
58, С. 172 - 178
Опубликована: Май 17, 2022
Periodontal
tissue
stem
cells,
which
play
a
crucial
role
in
maintaining
the
homeostasis
of
periodontal
tissues,
are
found
ligament
(PDL).
These
cells
have
long
been
referred
to
as
mesenchymal
stem/stromal
(MSCs),
and
their
clinical
applications
extensively
studied.
However,
PDL
not
thoroughly
investigated,
they
may
be
different
from
MSCs.
Recent
advances
cell
biology,
such
genetic
lineage
tracing,
identification
label-retaining
single-cell
transcriptome
analysis,
made
it
possible
analyze
vivo.
In
this
review,
we
summarize
recent
findings
on
these
populations
discuss
future
research
directions
toward
developing
regenerative
therapy.
Nature,
Год журнала:
2024,
Номер
635(8039), С. 699 - 707
Опубликована: Ноя. 20, 2024
Abstract
The
gastrointestinal
tract
is
a
multi-organ
system
crucial
for
efficient
nutrient
uptake
and
barrier
immunity.
Advances
in
genomics
surge
diseases
1,2
has
fuelled
efforts
to
catalogue
cells
constituting
tissues
health
disease
3
.
Here
we
present
systematic
integration
of
25
single-cell
RNA
sequencing
datasets
spanning
the
entire
healthy
development
adulthood.
We
uniformly
processed
385
samples
from
189
controls
using
newly
developed
automated
quality
control
approach
(scAutoQC),
leading
reference
atlas
with
approximately
1.1
million
136
fine-grained
cell
states.
anchor
12
cancers,
coeliac
disease,
ulcerative
colitis
Crohn’s
this
reference.
Utilizing
1.6
resource
(gutcellatlas.org),
discover
epithelial
metaplasia
originating
stem
intestinal
inflammatory
transcriptional
similarity
found
pyloric
Brunner’s
glands.
Although
previously
linked
mucosal
healing
4
,
now
implicate
gland
metaplastic
inflammation
through
recruitment
immune
including
T
neutrophils.
Overall,
describe
inflammation-induced
changes
that
alter
tissue
architecture
promote
further
inflammation,
concept
applicable
other
diseases.