bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2022,
Volume and Issue:
unknown
Published: Oct. 7, 2022
Abstract
Single
cell
and
spatial
technologies
that
profile
gene
expression
across
a
whole
tissue
are
revolutionizing
the
resolution
of
molecular
states
in
clinical
samples.
Commercially
available
methods
characterize
either
single
or
currently
limited
by
low
sample
throughput
and/or
plexy,
lack
on-instrument
analysis,
destruction
histological
features
epitopes
during
workflow.
Here,
we
analyzed
large,
serial
formalin-fixed,
paraffin-embedded
(FFPE)
human
breast
cancer
sections
using
novel
FFPE-compatible
workflow
(Chromium
Fixed
RNA
Profiling;
scFFPE-seq),
transcriptomics
(Visium
CytAssist),
automated
microscopy-based
situ
technology
313-plex
panel
(Xenium
In
Situ).
Whole
transcriptome
profiling
FFPE
scFFPE-seq
Visium
facilitated
identification
17
different
types.
Xenium
allowed
us
to
spatially
resolve
these
types
their
profiles
with
resolution.
Due
non-destructive
nature
workflow,
were
able
perform
H&E
staining
immunofluorescence
on
same
section
post-processing
which
register
protein,
histological,
data
together
into
image.
Integration
from
Chromium
scFFPE-seq,
Visium,
do
extensive
benchmarking
sensitivity
specificity
between
technologies.
Furthermore,
integration
inspired
interrogation
three
molecularly
distinct
tumor
subtypes
(low-grade
high-grade
ductal
carcinoma
(DCIS),
invasive
carcinoma).
We
used
cellular
composition
differentially
expressed
genes
within
subtypes.
This
analysis
draw
biological
insights
about
DCIS
progression
infiltrating
carcinoma,
as
myoepithelial
layer
degrades
cells
invade
surrounding
stroma.
also
further
predict
hormone
receptor
status
subtypes,
including
small
0.1
mm
2
region
was
triple
positive
for
ESR1
(estrogen
receptor),
PGR
(progesterone
ERBB2
(human
epidermal
growth
factor
2,
a.k.a.
HER2)
RNA.
order
derive
information
cells,
interpolate
spots,
discover
new
biomarkers
demonstrate
independently
provide
signatures
relevant
understanding
heterogeneity.
However,
it
is
leads
even
deeper
insights,
ushering
discoveries
will
progress
oncology
research
development
diagnostics
therapeutics.
Cell Metabolism,
Journal Year:
2022,
Volume and Issue:
35(1), P. 84 - 100.e8
Published: Oct. 17, 2022
Treatment
of
triple-negative
breast
cancer
(TNBC)
remains
challenging.
Deciphering
the
orchestration
metabolic
pathways
in
regulating
ferroptosis
will
provide
new
insights
into
TNBC
therapeutic
strategies.
Here,
we
integrated
multiomics
data
our
large
cohort
(n
=
465)
to
develop
atlas.
We
discovered
that
TNBCs
had
heterogeneous
phenotypes
ferroptosis-related
metabolites
and
pathways.
The
luminal
androgen
receptor
(LAR)
subtype
was
characterized
by
upregulation
oxidized
phosphatidylethanolamines
glutathione
metabolism
(especially
GPX4),
which
allowed
utilization
GPX4
inhibitors
induce
ferroptosis.
Furthermore,
verified
inhibition
not
only
induced
tumor
but
also
enhanced
antitumor
immunity.
combination
anti-PD1
possessed
greater
efficacy
than
monotherapy.
Clinically,
higher
expression
correlated
with
lower
cytolytic
scores
worse
prognosis
immunotherapy
cohorts.
Collectively,
this
study
demonstrated
landscape
revealed
an
innovative
strategy
for
refractory
LAR
tumors.
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: June 9, 2022
Abstract
The
growing
availability
of
single-cell
data,
especially
transcriptomics,
has
sparked
an
increased
interest
in
the
inference
cell-cell
communication.
Many
computational
tools
were
developed
for
this
purpose.
Each
them
consists
a
resource
intercellular
interactions
prior
knowledge
and
method
to
predict
potential
communication
events.
Yet
impact
choice
on
resulting
predictions
is
largely
unknown.
To
shed
light
this,
we
systematically
compare
16
resources
7
methods,
plus
consensus
between
methods’
predictions.
Among
resources,
find
few
unique
interactions,
varying
degree
overlap,
uneven
coverage
specific
pathways
tissue-enriched
proteins.
We
then
examine
all
possible
combinations
methods
show
that
both
strongly
influence
predicted
interactions.
Finally,
assess
agreement
with
spatial
colocalisation,
cytokine
activities,
receptor
protein
abundance
are
generally
coherent
those
data
modalities.
facilitate
use
described
work,
provide
LIANA,
LIgand-receptor
ANalysis
frAmework
as
open-source
interface
methods.
International Journal of Surgery,
Journal Year:
2022,
Volume and Issue:
107, P. 106936 - 106936
Published: Sept. 20, 2022
Postoperative
progression
and
chemotherapy
resistance
is
the
major
cause
of
treatment
failure
in
patients
with
triple-negative
breast
cancer
(TNBC).
Currently,
there
a
lack
an
ideal
predictive
model
for
drug
sensitivity
postoperative
TNBC
patients.
Diverse
programmed
cell
death
(PCD)
patterns
play
important
role
tumor
progression,
which
has
potential
to
be
prognostic
indicator
after
surgery.Twelve
PCD
(apoptosis,
necroptosis,
pyroptosis,
ferroptosis,
cuproptosis,
entotic
death,
netotic
parthanatos,
lysosome-dependent
autophagy-dependent
alkaliptosis,
oxeiptosis)
were
analyzed
construction.
Bulk
transcriptome,
single-cell
genomics,
clinical
information
collected
from
TCGA-BRCA,
METABRIC,
GSE58812,
GSE21653,
GSE176078,
GSE75688,
KM-plotter
cohorts
validate
model.The
machine
learning
algorithm
established
index
(CDI)
12-gene
signature.
Validated
five
independent
datasets,
high
CDI
had
worse
prognosis
surgery.
Two
molecular
subtypes
distinct
vital
biological
processes
identified
by
unsupervised
clustering
model.
A
nomogram
performance
was
constructed
incorporating
features.
Furthermore,
associated
immune
checkpoint
genes
key
microenvironment
components
integrated
analysis
bulk
transcriptome.
are
resistant
standard
adjuvant
regimens
(docetaxel,
oxaliplatin,
etc.);
however,
they
might
sensitive
palbociclib
(an
FDA-approved
luminal
cancer).Generally,
we
novel
comprehensively
analyzing
diverse
patterns,
can
accurately
predict
user-friendly
website
created
facilitate
application
this
prediction
(https://tnbc.shinyapps.io/CDI_Model/).
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Dec. 19, 2023
Single-cell
and
spatial
technologies
that
profile
gene
expression
across
a
whole
tissue
are
revolutionizing
the
resolution
of
molecular
states
in
clinical
samples.
Current
commercially
available
provide
transcriptome
single-cell,
spatial,
or
targeted
situ
analysis.
Here,
we
combine
these
to
explore
heterogeneity
large,
FFPE
human
breast
cancer
sections.
This
integrative
approach
allowed
us
differences
exist
between
distinct
tumor
regions
identify
biomarkers
involved
progression
towards
invasive
carcinoma.
Further,
study
cell
neighborhoods
rare
boundary
cells
sit
at
critical
myoepithelial
border
confining
spread
malignant
cells.
demonstrate
each
technology
alone
provides
information
about
signatures
relevant
understanding
heterogeneity;
however,
it
is
integration
leads
deeper
insights,
ushering
discoveries
will
progress
oncology
research
development
diagnostics
therapeutics.
Science,
Journal Year:
2023,
Volume and Issue:
381(6657)
Published: Aug. 3, 2023
Spatial
omics
has
been
widely
heralded
as
the
new
frontier
in
life
sciences.
This
term
encompasses
a
wide
range
of
techniques
that
promise
to
transform
many
areas
biology
and
eventually
revolutionize
pathology
by
measuring
physical
tissue
structure
molecular
characteristics
at
same
time.
Although
field
came
age
past
5
years,
it
still
suffers
from
some
growing
pains:
barriers
entry,
robustness,
unclear
best
practices
for
experimental
design
analysis,
lack
standardization.
In
this
Review,
we
present
systematic
catalog
different
families
spatial
technologies;
highlight
their
principles,
power,
limitations;
give
perspective
suggestions
on
biggest
challenges
lay
ahead
incredibly
powerful-but
hard
navigate-landscape.