Frontiers in Cell and Developmental Biology,
Journal Year:
2021,
Volume and Issue:
9
Published: Aug. 6, 2021
Cell-cell
interactions
are
crucial
for
organ
development
and
function.
In
the
heart,
endothelial
cells
engage
in
bidirectional
communication
with
cardiomyocytes
regulating
cardiac
growth.
We
aimed
to
elucidate
organotypic
of
cardiomyocyte
cell
crosstalk
using
human
induced
pluripotent
stem
(hiPSC).
Single-cell
RNA
sequencing
was
performed
hiPSC-derived
(hiPS-CMs)
(hiPS-ECs)
mono-
co-culture.
The
presence
hiPS-CMs
led
increased
expression
transcripts
related
vascular
maturation,
development,
as
well
endocardium-specific
genes
hiPS-ECs.
Interestingly,
co-culture
myofibrillar
MYL7
MYL4
protein
detected
Major
regulators
BMP-
Notch-signaling
pathways
were
both
types
These
results
reflect
findings
from
animal
studies
extend
them
cells,
demonstrating
importance
EC-CM
during
development.
Nature,
Journal Year:
2024,
Volume and Issue:
627(8005), P. 854 - 864
Published: March 13, 2024
Abstract
The
heart,
which
is
the
first
organ
to
develop,
highly
dependent
on
its
form
function
1,2
.
However,
how
diverse
cardiac
cell
types
spatially
coordinate
create
complex
morphological
structures
that
are
crucial
for
heart
remains
unclear.
Here
we
integrated
single-cell
RNA-sequencing
with
high-resolution
multiplexed
error-robust
fluorescence
in
situ
hybridization
resolve
identity
of
develop
human
heart.
This
approach
also
provided
a
spatial
mapping
individual
cells
enables
illumination
their
organization
into
cellular
communities
distinct
structures.
We
discovered
many
these
further
specified
subpopulations
exclusive
specific
communities,
support
specialization
according
ecosystem
and
anatomical
region.
In
particular,
ventricular
cardiomyocyte
displayed
an
unexpected
laminar
across
wall
formed,
other
subpopulations,
several
communities.
Interrogating
cell–cell
interactions
within
using
vivo
conditional
genetic
mouse
models
vitro
pluripotent
stem
systems
revealed
multicellular
signalling
pathways
orchestrate
during
morphogenesis.
These
detailed
findings
social
constructing
remodelling
offer
new
insights
structural
diseases
engineering
tissues
repair.
JACC Asia,
Journal Year:
2025,
Volume and Issue:
5(3), P. 478 - 495
Published: March 1, 2025
The
treatment
of
functional
tricuspid
regurgitation
(TR)
is
still
controversial.
Characterizing
the
cellular
composition
valve
and
identifying
molecular
alterations
each
cell
type
in
valves
with
TR
will
advance
our
understanding
mechanisms
guide
improvements
treatment.
authors
aimed
to
investigate
changes
gene
expression
patterns
cells
regurgitant
shed
light
on
TR.
To
improve
pathogenesis
TR,
we
performed
single-cell
RNA
sequencing
from
10
patients,
including
5
patients
moderate-to-severe
nondiseased
control
subjects.
Multiplexed
fluorescence
was
used
detect
spatial
distributions
valvular
states
validated
cell-cell
interaction.
We
assessed
transcriptional
profiles
84,102
identified
6
major
clusters,
along
25
subtypes,
specimens.
Valve
interstitial
(VICs)
were
largest
population.
VICs
lymphoid
exhibited
more
heterogeneity
patients.
higher
activity
toward
matrifibrocyte-like
myofibroblast-like
differentiation,
myeloid
activated
immune
response,
promoted
fibrosis.
In
alternation
COMP-CD47
FGF2-FGFR1
interaction
may
occur
specimens,
which
serve
as
promising
therapeutic
targets
for
Our
atlas
highlights
transcriptomic
underlying
functions
interactions
human
defines
perturbations
VIC
clusters
fibrosis
activation
accumulated
valves.
Translational Pediatrics,
Journal Year:
2021,
Volume and Issue:
10(9), P. 2366 - 2386
Published: Aug. 30, 2021
Congenital
heart
disease
(CHD)
is
the
most
common
human
birth
defect
and
remains
a
leading
cause
of
mortality
in
childhood.
Although
advances
clinical
management
have
improved
survival
children
with
CHD,
adult
survivors
commonly
experience
cardiac
non-cardiac
comorbidities,
which
affect
quality
life
prognosis.
Therefore,
elucidation
genetic
etiologies
CHD
not
only
has
important
implications
for
counseling
patients
families
but
may
also
impact
outcomes
by
identifying
at-risk
patients.
Recent
advancements
technologies,
including
massively
parallel
sequencing,
allowed
discovery
new
CHD.
variant
prioritization
interpretation
pathogenicity
remain
challenges
field
genomics,
single-cell
genomics
functional
using
cellular
animal
models
potential
to
provide
novel
insights
into
underlying
mechanisms
its
associated
morbidities.
In
this
review,
we
an
updated
summary
established
contributors
discuss
recent
our
understanding
architecture
along
current
variation.
Furthermore,
highlight
findings
predict
potentially
improve
Communications Biology,
Journal Year:
2022,
Volume and Issue:
5(1)
Published: April 29, 2022
Abstract
Heart
organoids
have
the
potential
to
generate
primary
heart-like
anatomical
structures
and
hold
great
promise
as
in
vitro
models
for
cardiac
disease.
However,
their
properties
not
yet
been
fully
studied,
which
hinders
wide
spread
application.
Here
we
report
development
of
differentiation
systems
ventricular
atrial
heart
organoids,
enabling
study
diseases
with
chamber
defects.
We
show
that
our
chamber-specific
comprising
major
cell
types,
use
single
RNA
sequencing
together
sample
multiplexing
characterize
cells
generate.
To
end,
developed
a
machine
learning
label
transfer
approach
leveraging
type,
chamber,
laterality
annotations
available
human
fetal
cells.
then
used
this
model
analyze
organoid
from
an
isogeneic
line
carrying
Ebstein’s
anomaly
associated
genetic
variant
NKX2-5
,
successfully
recapitulated
disease’s
atrialized
In
summary,
established
workflow
integrating
computational
analysis
normal
disease
states.
JAMA Network Open,
Journal Year:
2024,
Volume and Issue:
7(1), P. e2350579 - e2350579
Published: Jan. 5, 2024
Importance
Maternal
diabetes
and
overweight
or
obesity
are
known
to
be
associated
with
increased
risk
of
congenital
heart
defects
(CHDs)
in
offspring,
but
there
no
large
studies
analyzing
outcomes
these
factors
1
model.
Objective
To
investigate
the
association
maternal
CHDs
among
offspring
Design,
Setting,
Participants
This
nationwide,
population-based
register
study
was
conducted
a
birth
cohort
from
Finland
consisting
all
children
born
between
2006
2016
(620
751
individuals)
their
mothers.
Data
were
analyzed
January
2022
until
November
2023.
Exposures
prepregnancy
body
mass
index
(BMI;
calculated
as
weight
kilograms
divided
by
height
meters
squared),
categorized
underweight
(<18.5),
normal
(18.5-24.9),
(25.0-29.9),
(≥30),
assessed.
status,
classified
diabetes,
type
(T1D),
2
other
gestational
Main
Outcomes
Measures
Odds
ratios
(ORs)
isolated
found.
In
addition,
9
anatomical
CHD
subgroups
studied.
Results
Of
620
(316
802
males
[51.0%];
573
259
mothers
aged
20-40
years
[92.3%])
during
period,
10
254
(1.7%)
had
an
CHD.
T1D
odds
having
child
any
(OR,
3.77
[95%
CI,
3.26-4.36])
6
(OR
range,
3.28
1.55-6.95]
for
septal
7.39
3.00-18.21]
transposition
great
arteries)
compared
diabetes.
left
ventricular
outflow
tract
obstruction
1.28
1.10-1.49])
0.92
0.86-0.98]),
complex
2.70
1.14-6.43])
right
1.31
1.09-1.58])
BMI.
Conclusions
Relevance
found
that
most
types
while
decreased
defects.
These
different
profiles
may
suggest
distinct
underlying
teratogenic
mechanisms.