bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 25, 2024
Abstract
Recent
advancements
in
spatial
transcriptomics
technologies
have
significantly
enhanced
resolution
and
throughput,
underscoring
an
urgent
need
for
systematic
benchmarking.
To
address
this,
we
collected
clinical
samples
from
three
cancer
types
–
colon
adenocarcinoma,
hepatocellular
carcinoma,
ovarian
generated
serial
tissue
sections
evaluation.
Using
these
uniformly
processed
samples,
data
across
five
high-throughput
platforms
with
subcellular
resolution:
Stereo-seq
v1.3,
Visium
HD
FFPE,
FF,
CosMx
6K,
Xenium
5K.
establish
ground
truth
datasets,
profiled
proteins
adjacent
corresponding
to
all
using
CODEX
performed
single-cell
RNA
sequencing
on
the
same
samples.
Leveraging
manual
cell
segmentation
detailed
annotations,
systematically
assessed
each
platform’s
performance
key
metrics,
including
capture
sensitivity,
specificity,
diffusion
control,
segmentation,
annotation,
clustering,
transcript-protein
alignment
CODEX.
The
generated,
processed,
annotated
multi-omics
dataset
is
valuable
advancing
computational
method
development
biological
discoveries.
accessible
via
SPATCH,
a
user-friendly
web
server
visualization
download
(
http://spatch.pku-genomics.org/
).
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 12, 2024
The
burgeoning
interest
in
situ
multiplexed
gene
expression
profiling
technologies
has
opened
new
avenues
for
understanding
cellular
behavior
and
interactions.
In
this
study,
we
present
a
comparative
benchmark
analysis
of
six
methods,
including
both
commercially
available
academically
developed
using
publicly
accessible
mouse
brain
datasets.
We
find
that
standard
sensitivity
metrics,
such
as
the
number
unique
molecules
detected
per
cell,
are
not
directly
comparable
across
datasets
due
to
substantial
differences
incidence
off-target
molecular
artifacts
impacting
specificity.
To
address
these
challenges,
explored
various
potential
sources
artifacts,
novel
metrics
control
them,
utilized
evaluate
compare
different
technologies.
Finally,
demonstrate
how
false
positives
can
seriously
confound
spatially-aware
differential
analysis,
requiring
caution
interpretation
downstream
results.
Our
provides
guidance
selection,
processing,
spatial
Nature,
Journal Year:
2024,
Volume and Issue:
630(8018), P. 943 - 949
Published: June 19, 2024
Abstract
Spatial
transcriptomics
measures
in
situ
gene
expression
at
millions
of
locations
within
a
tissue
1
,
hitherto
with
some
trade-off
between
transcriptome
depth,
spatial
resolution
and
sample
size
2
.
Although
integration
image-based
segmentation
has
enabled
impactful
work
this
context,
it
is
limited
by
imaging
quality
heterogeneity.
By
contrast,
recent
array-based
technologies
offer
the
ability
to
measure
entire
subcellular
across
large
samples
3–6
Presently,
there
exist
no
approaches
for
cell
type
identification
that
directly
leverage
information
annotate
individual
cells.
Here
we
propose
multiscale
approach
automatically
classify
types
level,
using
both
transcriptomic
context.
We
showcase
on
targeted
whole-transcriptome
platforms,
improving
classification
morphology
human
kidney
pinpointing
sparsely
distributed
renal
mouse
immune
cells
without
reliance
image
data.
integrating
these
predictions
into
topological
pipeline
based
multiparameter
persistent
homology
7–9
identify
relationships
characteristic
model
lupus
nephritis,
which
validate
experimentally
immunofluorescence.
The
proposed
framework
readily
generalizes
new
providing
comprehensive
bridging
different
levels
biological
organization
from
genes
through
tissues.
The
burgeoning
interest
in
situ
multiplexed
gene
expression
profiling
technologies
has
opened
new
avenues
for
understanding
cellular
behavior
and
interactions.
In
this
study,
we
present
a
comparative
benchmark
analysis
of
six
methods,
including
both
commercially
available
academically
developed
using
publicly
accessible
mouse
brain
datasets.
We
find
that
standard
sensitivity
metrics,
such
as
the
number
unique
molecules
detected
per
cell,
are
not
directly
comparable
across
datasets
due
to
substantial
differences
incidence
off-target
molecular
artifacts
impacting
specificity.
To
address
these
challenges,
explored
various
potential
sources
artifacts,
novel
metrics
control
them,
utilized
evaluate
compare
different
technologies.
Finally,
demonstrate
how
false
positives
can
seriously
confound
spatially-aware
differential
analysis,
requiring
caution
interpretation
downstream
results.
Our
provides
guidance
selection,
processing,
spatial
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 21, 2024
Abstract
Spatial
biology
experiments
integrate
the
molecular
and
histological
landscape
of
tissues
to
provide
a
previously
inaccessible
view
tissue
biology,
unlocking
architecture
complex
multicellular
tissues.
Within
spatial
transcriptomics
platforms
are
among
most
advanced,
allowing
researchers
characterize
expression
thousands
genes
across
space.
These
new
technologies
transforming
our
understanding
how
cells
organized
in
space
communicate
with
each
other
determine
emergent
phenotypes
unprecedented
granularity.
This
is
particularly
important
cancer
research,
as
it
becoming
evident
that
tumor
evolution
shaped
not
only
by
genetic
properties
but
also
they
interact
microenvironment
their
organization.
While
many
can
generate
profiles,
still
unclear
which
context
platform
better
suits
needs
its
users.
Here
we
compare
results
obtained
using
4
different
(VISIUM,
VISIUM
CytAssist,
Xenium
CosMx)
one
proteomics
(VISIUM
CytAssist)
serial
sections
6
FFPE
samples
from
primary
human
tumors
covering
some
common
forms
disease
(lung,
breast,
colorectal,
bladder,
lymphoma
ovary).
We
observed
CytAssist
chemistry
yielded
superior
data
quality.
consistently
produced
more
reliable
for
situ
platforms,
gene
clustering
fewer
false
positives
than
CosMx.
Interestingly,
these
platform-based
variations
didn’t
significantly
affect
cell
type
identification.
Finally,
comparing
protein
profiles
all
four
on
sample,
identified
several
mismatched
RNA
patterns,
highlighting
importance
multi-omics
profiling
reveal
true
tumors.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: July 22, 2024
Abstract
Deciphering
the
striatal
interneuron
diversity
is
key
to
understanding
basal
ganglia
circuit
and
untangling
complex
neurological
psychiatric
diseases
affecting
this
brain
structure.
We
performed
snRNA-seq
spatial
transcriptomics
of
postmortem
human
caudate
nucleus
putamen
samples
elucidate
abundance
populations
their
inherent
transcriptional
structure
in
dorsal
striatum.
propose
a
comprehensive
taxonomy
interneurons
with
eight
main
classes
fourteen
subclasses,
providing
full
transcriptomic
identity
expression
profile
as
well
additional
quantitative
FISH
validation
for
specific
populations.
have
also
delineated
correspondence
our
previous
standardized
classifications
shown
class
differences
between
putamen.
Notably,
based
on
functional
genes
such
ion
channels
synaptic
receptors,
we
found
matching
known
mouse
most
abundant
populations,
recently
described
PTHLH
TAC3
interneurons.
Finally,
were
able
integrate
other
published
datasets
ours,
supporting
generalizability
harmonized
taxonomy.
Tissue
makeup
relies
fundamentally
on
the
cellular
microenvironment.
Spatial
single-cell
genomics
allows
probing
underlying
interactions
in
an
unbiased,
scalable
fashion.
To
learn
a
unified
cell
representation
that
accounts
for
local
dependencies
microenvironment,
we
propose
Nicheformer,
transformer-based
foundation
model
combines
human
and
mouse
dissociated
targeted
spatial
transcriptomics
data.
Pretrained
over
57
million
53
spatially
resolved
cells
across
73
tissues,
is
fine-tuned
tasks
omics
data
to
decode
information.
Nicheformer
excels
zero-shot-like
fine-tuning
scenarios
novel
set
of
downstream
tasks,
particular
composition
prediction
label
prediction.
enables
context
cells,
allowing
transfer
rich
information
scRNA-seq
datasets.
Overall,
sets
stage
next
generation
machine-learning
models
analysis.
Toxicologic Pathology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 10, 2025
Recent
advances
in
bioanalytical
and
imaging
technologies
have
revolutionized
our
ability
to
assess
complex
biological
pathological
changes
within
tissue
samples.
Spatial
omics,
a
rapidly
evolving
technology,
enables
the
simultaneous
detection
of
multiple
biomolecules
sections,
allowing
for
high-dimensional
molecular
profiling
microanatomical
contexts.
This
offers
powerful
opportunity
precise,
multidimensional
exploration
disease
pathophysiology.
The
Pathology
2.0
working
group
European
Society
Toxicologic
(ESTP)
includes
subgroup
dedicated
spatial
omics
technologies.
Their
primary
goal
is
raise
awareness
about
these
emerging
their
potential
applications
discovery
toxicologic
pathology.
review
provides
an
overview
commonly
used,
commercially
available
platforms
transcriptomic,
proteomic,
multiomic
analysis,
discussing
technical
aspects
illustrative
examples
applications.
To
harness
power
translational
drug
human
safety
risk
assessment,
we
emphasize
important
role
pathologists
at
every
stage
workflow—from
hypothesis
generation
sample
preparation,
data
interpretation.
offer
novel
opportunities
target
discovery,
lead
selection,
preclinical
clinical
development
compound
development.
Nature Methods,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 13, 2025
Abstract
The
Xenium
In
Situ
platform
is
a
new
spatial
transcriptomics
product
commercialized
by
10x
Genomics,
capable
of
mapping
hundreds
genes
in
situ
at
subcellular
resolution.
Given
the
multitude
commercially
available
technologies,
recommendations
choice
and
analysis
guidelines
are
increasingly
important.
Herein,
we
explore
25
datasets
generated
from
multiple
tissues
species,
comparing
scalability,
resolution,
data
quality,
capacities
limitations
with
eight
other
spatially
resolved
technologies
commercial
platforms.
addition,
benchmark
performance
open-source
computational
tools,
when
applied
to
datasets,
tasks
including
preprocessing,
cell
segmentation,
selection
variable
features
domain
identification.
This
study
serves
as
an
independent
Xenium,
provides
best
practices
for
such
datasets.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 5, 2024
Abstract
Background
Spatial
transcriptomics
(
ST
)
technologies
are
revolutionizing
our
understanding
of
intra-tumor
heterogeneity
and
the
tumor
microenvironment
by
revealing
single-cell
molecular
profiles
within
their
spatial
tissue
context.
The
rapid
evolution
methods,
each
with
unique
features,
presents
a
challenge
in
selecting
most
appropriate
technology
for
specific
research
objectives.
Here,
we
compare
four
imaging-based
methods
–
RNAscope
HiPlex,
Molecular
Cartography,
MERFISH/Merscope,
Xenium
together
sequencing-based
(Visium).
These
were
used
to
study
cryosections
medulloblastoma
extensive
nodularity
(MBEN),
chosen
its
distinct
microanatomical
features.
Results
Our
analysis
reveals
that
automated
well
suited
delineating
intricate
MBEN
microanatomy,
capturing
cell-type-specific
transcriptome
profiles.
We
devise
approaches
sensitivity
specificity
different
attributes
guide
method
selection
based
on
aim.
Furthermore,
demonstrate
how
reimaging
slides
after
can
markedly
improve
cell
segmentation
accuracy
integrate
additional
transcript
protein
readouts
expand
analytical
possibilities
depth
insights.
Conclusions
This
highlights
key
distinctions
between
various
provides
set
parameters
evaluating
performance.
findings
aid
informed
choice
delineate
enhancing
resolution
breadth
transcriptomic
analyses,
thereby
contributing
advancing
applications
solid
research.