Nucleic Acids Research,
Journal Year:
2023,
Volume and Issue:
51(20), P. e103 - e103
Published: Oct. 9, 2023
Abstract
Spatial
transcriptomics
characterizes
gene
expression
profiles
while
retaining
the
information
of
spatial
context,
providing
an
unprecedented
opportunity
to
understand
cellular
systems.
One
essential
tasks
in
such
data
analysis
is
determine
spatially
variable
genes
(SVGs),
which
demonstrate
patterns.
Existing
methods
only
consider
individually
and
fail
model
inter-dependence
genes.
To
this
end,
we
present
analytic
tool
STAMarker
for
robustly
determining
domain-specific
SVGs
with
saliency
maps
deep
learning.
a
three-stage
ensemble
framework
consisting
graph-attention
autoencoders,
multilayer
perceptron
(MLP)
classifiers,
map
computation
by
backpropagated
gradient.
We
illustrate
effectiveness
compare
it
serveral
commonly
used
competing
on
various
transcriptomic
generated
different
platforms.
considers
all
at
once
more
robust
when
dataset
very
sparse.
could
identify
characterizing
domains
enable
in-depth
region
interest
tissue
section.
Cell,
Journal Year:
2022,
Volume and Issue:
185(10), P. 1777 - 1792.e21
Published: May 1, 2022
Spatially
resolved
transcriptomic
technologies
are
promising
tools
to
study
complex
biological
processes
such
as
mammalian
embryogenesis.
However,
the
imbalance
between
resolution,
gene
capture,
and
field
of
view
current
methodologies
precludes
their
systematic
application
analyze
relatively
large
three-dimensional
mid-
late-gestation
embryos.
Here,
we
combined
DNA
nanoball
(DNB)-patterned
arrays
in
situ
RNA
capture
create
spatial
enhanced
resolution
omics-sequencing
(Stereo-seq).
We
applied
Stereo-seq
generate
mouse
organogenesis
spatiotemporal
atlas
(MOSTA),
which
maps
with
single-cell
high
sensitivity
kinetics
directionality
transcriptional
variation
during
organogenesis.
used
this
information
gain
insight
into
molecular
basis
cell
heterogeneity
fate
specification
developing
tissues
dorsal
midbrain.
Our
panoramic
will
facilitate
in-depth
investigation
longstanding
questions
concerning
normal
abnormal
development.
Science,
Journal Year:
2021,
Volume and Issue:
371(6532)
Published: Jan. 21, 2021
Following
cancer
through
the
body
The
heterogeneity
of
mammalian
tumors
has
been
well
documented,
but
it
remains
unknown
how
differences
between
individual
cells
lead
to
metastasis
and
spread
throughout
body.
Quinn
et
al.
created
a
Cas9-based
lineage
tracer
used
single-cell
sequencing
generate
phylogenies
follow
movement
metastatic
human
implanted
in
lung
mouse
xenograph
model.
Using
this
model,
they
found
that
within
same
cell
line,
exhibited
diverse
phenotypes.
These
subclones
differential
gene
expression
profiles,
some
which
were
previously
associated
with
metastasis.
Science
,
issue
p.
eabc1944
Cell,
Journal Year:
2022,
Volume and Issue:
185(11), P. 1905 - 1923.e25
Published: May 1, 2022
Tumor
evolution
is
driven
by
the
progressive
acquisition
of
genetic
and
epigenetic
alterations
that
enable
uncontrolled
growth
expansion
to
neighboring
distal
tissues.
The
study
phylogenetic
relationships
between
cancer
cells
provides
key
insights
into
these
processes.
Here,
we
introduced
an
evolving
lineage-tracing
system
with
a
single-cell
RNA-seq
readout
mouse
model
Kras;Trp53(KP)-driven
lung
adenocarcinoma
tracked
tumor
from
single-transformed
metastatic
tumors
at
unprecedented
resolution.
We
found
loss
initial,
stable
alveolar-type2-like
state
was
accompanied
transient
increase
in
plasticity.
This
followed
adoption
distinct
transcriptional
programs
rapid
and,
ultimately,
clonal
sweep
subclones
capable
metastasizing.
Finally,
develop
through
stereotypical
evolutionary
trajectories,
perturbing
additional
suppressors
accelerates
progression
creating
novel
trajectories.
Our
elucidates
hierarchical
nature
more
broadly,
enables
in-depth
studies
progression.
Cell,
Journal Year:
2022,
Volume and Issue:
185(23), P. 4428 - 4447.e28
Published: Oct. 31, 2022
Human
brain
development
is
underpinned
by
cellular
and
molecular
reconfigurations
continuing
into
the
third
decade
of
life.
To
reveal
cell
dynamics
orchestrating
neural
maturation,
we
profiled
human
prefrontal
cortex
gene
expression
chromatin
accessibility
at
single-cell
resolution
from
gestation
to
adulthood.
Integrative
analyses
define
dynamic
trajectories
each
type,
revealing
major
reconfiguration
prenatal-to-postnatal
transition
in
all
types
followed
continuous
adulthood
identifying
regulatory
networks
guiding
developmental
programs,
states,
functions.
We
uncover
links
between
milestones,
characterize
diverse
timing
when
cells
acquire
adult-like
identify
convergence
distinct
origins.
further
their
regulators
implicated
neurological
disorders.
Finally,
using
this
reference,
benchmark
identities
maturation
states
organoid
models.
Together,
captures
landscape
cortical
development.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Feb. 7, 2023
The
treatment
of
low-risk
primary
prostate
cancer
entails
active
surveillance
only,
while
high-risk
disease
requires
multimodal
including
surgery,
radiation
therapy,
and
hormonal
therapy.
Recurrence
development
metastatic
remains
a
clinical
problem,
without
clear
understanding
what
drives
immune
escape
tumor
progression.
Here,
we
comprehensively
describe
the
microenvironment
localized
in
comparison
with
adjacent
normal
samples
healthy
controls.
Single-cell
RNA
sequencing
high-resolution
spatial
transcriptomic
analyses
reveal
context
dependent
changes
gene
expression.
Our
data
indicate
that
an
suppressive
associates
myeloid
populations
exhausted
T-cells,
addition
to
high
stromal
angiogenic
activity.
We
infer
cell-to-cell
relationships
from
throughput
ligand-receptor
interaction
measurements
within
undissociated
tissue
sections.
work
thus
provides
highly
detailed
comprehensive
resource
as
well
tumor-stromal
cell
interactions.
Developmental Cell,
Journal Year:
2022,
Volume and Issue:
57(10), P. 1271 - 1283.e4
Published: May 1, 2022
Drosophila
has
long
been
a
successful
model
organism
in
multiple
biomedical
fields.
Spatial
gene
expression
patterns
are
critical
for
the
understanding
of
complex
pathways
and
interactions,
whereas
temporal
changes
vital
studying
highly
dynamic
physiological
activities.
Systematic
studies
still
impeded
by
lack
spatiotemporal
transcriptomic
information.
Here,
utilizing
spatial
enhanced
resolution
omics-sequencing
(Stereo-seq),
we
dissected
developing
with
high
sensitivity.
We
demonstrated
that
Stereo-seq
data
can
be
used
3D
reconstruction
transcriptomes
embryos
larvae.
With
these
models,
identified
functional
subregions
embryonic
larval
midguts,
uncovered
cell
state
dynamics
testis,
revealed
known
potential
regulons
transcription
factors
within
their
topographic
background.
Our
provide
research
community
useful
resources
organism-wide
spatiotemporally
resolved
information
across
developmental
stages.
Developmental Cell,
Journal Year:
2022,
Volume and Issue:
57(10), P. 1284 - 1298.e5
Published: May 1, 2022
A
major
challenge
in
understanding
vertebrate
embryogenesis
is
the
lack
of
topographical
transcriptomic
information
that
can
help
correlate
microenvironmental
cues
within
hierarchy
cell-fate
decisions.
Here,
we
employed
Stereo-seq
to
profile
91
zebrafish
embryo
sections
covering
six
critical
time
points
during
first
24
h
development,
obtaining
a
total
152,977
spots
at
resolution
10
×
15
μm3
(close
cellular
size)
with
spatial
coordinates.
Meanwhile,
identified
modules
and
co-varying
genes
for
specific
tissue
organizations.
By
performing
integrated
analysis
scRNA-seq
data
from
each
point,
reconstructed
spatially
resolved
developmental
trajectories
transitions
molecular
changes
embryogenesis.
We
further
investigated
distribution
ligand-receptor
pairs
potentially
important
interactions
development.
Our
study
constitutes
fundamental
reference
studies
aiming
understand
Computational and Structural Biotechnology Journal,
Journal Year:
2022,
Volume and Issue:
20, P. 4870 - 4884
Published: Jan. 1, 2022
Transcriptome
level
expression
data
connected
to
the
spatial
organization
of
cells
and
molecules
would
allow
a
comprehensive
understanding
how
gene
is
structure
function
in
biological
systems.
The
transcriptomics
platforms
may
soon
provide
such
information.
However,
current
still
lack
resolution,
capture
only
fraction
transcriptome
heterogeneity,
or
throughput
for
large
scale
studies.
strengths
weaknesses
ST
computational
solutions
need
be
taken
into
account
when
planning
basis
analysis
developed
single-cell
RNA-sequencing
data,
with
advancements
taking
connectedness
transcriptomes.
scRNA-seq
tools
are
modified
new
like
deep
learning-based
joint
expression,
spatial,
image
extract
information
spatially
resolved
can
reveal
remarkable
insights
patterns
cell
signaling,
type
variations
connection
type-specific
signaling
complex
tissues.
This
review
covers
topics
that
help
choosing
platform
research.
We
focus
on
currently
available
methods
their
limitations.
Of
solutions,
we
an
overview
steps
used
analysis.
compatibility
types
provided
by
frameworks
summarized.