bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 28, 2024
Summary
Cells
are
internally
tensed,
or
prestressed,
largely
by
actomyosin
contractility.
We
hypothesized
that
nuclear
shape
is
quantitatively
predictable
from
cell
since
prestress
couples
them
both.
trained
machine
learning
models
on
a
publicly
available
image
database
of
the
WTC-11
line
and
predicted
modes
nucleus
with
high
accuracy.
develop
U-Net
architecture-based
model,
Cell2Nuc,
voxels
membrane
accuracies
between
74%-87%.
To
investigate
prestress,
we
cultured
imaged
HeLa
cells
after
inhibiting
The
Cell2Nuc
model
retrained
slightly
lower
Statistical
analysis
revealed
changes
in
size
chromatin
organization
upon
inhibition.
Similar
trends
were
seen
images
taken
NIH3T3
cells.
Thus,
encodes
features
shape,
their
coupling
partly
due
to
contractility,
whose
abrogation
leads
mechanosensitive
origin.
Journal of Chemical Information and Modeling,
Год журнала:
2024,
Номер
64(4), С. 1172 - 1186
Опубликована: Фев. 1, 2024
Drug-induced
cardiotoxicity
(DICT)
is
a
major
concern
in
drug
development,
accounting
for
10-14%
of
postmarket
withdrawals.
In
this
study,
we
explored
the
capabilities
chemical
and
biological
data
to
predict
cardiotoxicity,
using
recently
released
DICTrank
set
from
United
States
FDA.
We
found
that
such
data,
including
protein
targets,
especially
those
related
ion
channels
(e.g.,
hERG),
physicochemical
properties
electrotopological
state),
peak
concentration
plasma
offer
strong
predictive
ability
DICT.
Compounds
annotated
with
mechanisms
action
as
cyclooxygenase
inhibition
could
distinguish
between
most-concern
no-concern
Cell
Painting
features
ER
stress
discerned
cardiotoxic
nontoxic
compounds.
Models
based
on
provided
substantial
accuracy
(AUCPR
=
0.93).
With
availability
omics
future,
promises
enhanced
predictability
deeper
mechanistic
insights,
paving
way
safer
development.
All
models
study
are
available
at
https://broad.io/DICTrank_Predictor.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Май 7, 2024
ABSTRACT
High-content
image-based
assays
have
fueled
significant
discoveries
in
the
life
sciences
past
decade
(2013-2023),
including
novel
insights
into
disease
etiology,
mechanism
of
action,
new
therapeutics,
and
toxicology
predictions.
Here,
we
systematically
review
substantial
methodological
advancements
applications
Cell
Painting.
Advancements
include
improvements
Painting
protocol,
assay
adaptations
for
different
types
perturbations
applications,
improved
methodologies
feature
extraction,
quality
control,
batch
effect
correction.
Moreover,
machine
learning
methods
recently
surpassed
classical
approaches
their
ability
to
extract
biologically
useful
information
from
images.
data
been
used
alone
or
combination
with
other
-
omics
decipher
action
a
compound,
its
toxicity
profile,
many
biological
effects.
Overall,
key
advances
expanded
Painting’s
capture
cellular
responses
various
perturbations.
Future
will
likely
lie
advancing
computational
experimental
techniques,
developing
publicly
available
datasets,
integrating
them
high-content
types.
Current Opinion in Structural Biology,
Год журнала:
2024,
Номер
87, С. 102842 - 102842
Опубликована: Май 25, 2024
Artificial
intelligence
(AI)
and
high-content
imaging
(HCI)
are
contributing
to
advancements
in
drug
discovery,
propelled
by
the
recent
progress
deep
neural
networks.
This
review
highlights
AI's
role
analysis
of
HCI
data
from
fixed
live-cell
imaging,
enabling
novel
label-free
multi-channel
fluorescent
screening
methods,
improving
compound
profiling.
experiments
rapid
cost-effective,
facilitating
large
set
accumulation
for
AI
model
training.
However,
success
discovery
also
depends
on
high-quality
data,
reproducible
experiments,
robust
validation
ensure
performance.
Despite
challenges
like
need
annotated
compounds
managing
vast
image
potential
phenotypic
profiling
is
significant.
Future
improvements
AI,
including
increased
interpretability
integration
multiple
modalities,
expected
solidify
HCI's
discovery.
Environment International,
Год журнала:
2024,
Номер
190, С. 108820 - 108820
Опубликована: Июнь 17, 2024
PFAS
are
ubiquitous
industrial
chemicals
with
known
adverse
health
effects,
particularly
on
the
liver.
The
liver,
being
a
vital
metabolic
organ,
is
susceptible
to
PFAS-induced
dysregulation,
leading
conditions
such
as
hepatotoxicity
and
disturbances.
In
this
study,
we
investigated
phenotypic
responses
of
exposure
using
two
hepatocyte
models,
HepG2
(male
cell
line)
HepaRG
(female
line),
aiming
define
alterations,
disturbances
at
metabolite
pathway
levels.
mixture
composition
was
selected
based
epidemiological
data,
covering
broad
concentration
spectrum
observed
in
diverse
human
populations.
Phenotypic
profiling
by
Cell
Painting
assay
disclosed
predominant
effects
mitochondrial
structure
function
both
models
well
F-actin,
Golgi
apparatus,
plasma
membrane-associated
measures.
We
employed
comprehensive
characterization
liquid
chromatography
combined
high-resolution
mass
spectrometry
(LC-HRMS).
dose-dependent
changes
profiles,
lipid,
steroid,
amino
acid
sugar
carbohydrate
metabolism
cells
media,
line
showing
stronger
response.
cells,
most
bile
acids,
acylcarnitines
free
fatty
acids
showed
downregulation,
while
medium-chain
carnosine
were
upregulated,
media
different
response
especially
relation
media.
Importantly,
also
nonmonotonic
for
several
features
metabolites.
On
level,
associated
pathways
indicating
oxidative
stress
inflammatory
responses.
Taken
together,
our
findings
disruptions
hepatocytes
shed
light
potential
mechanisms
contributing
broader
comprehension
PFAS-related
risks.
iScience,
Год журнала:
2025,
Номер
28(3), С. 111961 - 111961
Опубликована: Фев. 6, 2025
Existing
research
has
proven
difficult
to
understand
the
interplay
between
upstream
signaling
events
during
NLRP3
inflammasome
activation.
Additionally,
downstream
of
complex
formation
such
as
cytokine
release
and
pyroptosis
can
exhibit
variation,
further
complicating
matters.
Cell
Painting
emerged
a
prominent
tool
for
unbiased
evaluation
effect
perturbations
on
cell
morphological
phenotypes.
Using
this
technique,
phenotypic
fingerprints
be
generated
that
reveal
connections
phenotypes
possible
modes
action.
To
best
our
knowledge,
was
first
study
utilized
human
THP-1
macrophages
generate
in
response
different
endogenous
exogenous
triggers
identify
features
specific
formation.
Our
results
demonstrated
not
only
are
trigger-specific
but
it
also
cellular
associated
with
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Март 13, 2024
Abstract
Functional
cell
processes
(e.g.,
molecular
signaling,
response
to
environmental
stimuli,
mitosis,
etc.)
impact
phenotypes,
which
scientists
can
easily
and
robustly
measure
with
morphology.
However,
linking
these
morphology
measurements
phenotypes
remains
challenging
because
biologically
interpretable
require
manually
annotated
labels.
Automatic
phenotype
annotation
from
would
link
biological
their
phenotypic
outcomes
deepen
understanding
of
function.
We
propose
that
nuclear
be
a
predictive
marker
for
is
generalizable
across
types.
Nucleus
commonly
accessible
microscopy,
but
annotating
specific
information
requires
Therefore,
we
reanalyzed
pre-labeled,
publicly-available
nucleus
microscopy
dataset
the
MitoCheck
consortium
predict
single-cell
phenotypes.
extracted
features
using
CellProfiler
DeepProfiler,
provide
fast,
robust,
data
processing
pipelines.
trained
multinomial,
multi-class
elastic
net
logistic
regression
models
classify
nuclei
into
one
15
such
as
‘Anaphase,’
‘Apoptosis’,
‘Binuclear’.
In
held-out
test
set,
observed
an
overall
F1
score
0.84,
where
individual
scores
ranged
0.64
(indicating
moderate
performance)
0.99
high
performance).
Notably,
‘Elongated’,
‘Metaphase’,
‘Apoptosis’
showed
performance.
While
DeepProfiler
were
generally
equally
effective,
combining
feature
spaces
yielded
best
results
9
leave-one-image-out
(LOIO)
cross-validation
analysis
significant
performance
decline,
indicating
our
model
could
not
reliably
in
new
single
images.
Poor
performance,
show
was
unrelated
factors
like
illumination
correction
or
selection,
limits
generalizability
datasets
highlights
challenges
annotation.
Nevertheless,
modified
applied
approach
JUMP
Cell
Painting
pilot
data.
Our
improved
alignment
highlighted
many
perturbations
are
known
associated
several
strategies
pave
way
more
methods
prediction,
step
toward
representation
ontologies
aid
cross-dataset
interpretability.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Окт. 18, 2023
Abstract
Drug-induced
cardiotoxicity
(DICT)
is
a
major
concern
in
drug
development,
accounting
for
10-14%
of
postmarket
withdrawals.
In
this
study,
we
explored
the
capabilities
various
chemical
and
biological
data
to
predict
cardiotoxicity,
using
recently
released
Drug-Induced
Cardiotoxicity
Rank
(DICTrank)
dataset
from
United
States
FDA.
We
analyzed
diverse
set
sources,
including
physicochemical
properties,
annotated
mechanisms
action
(MOA),
Cell
Painting,
Gene
Expression,
more,
identify
indications
cardiotoxicity.
found
that
such
data,
protein
targets,
especially
those
related
ion
channels
(such
as
hERG),
properties
electrotopological
state)
well
peak
concentration
plasma
offer
strong
predictive
ability
valuable
insights
into
DICT.
also
compounds
with
particular
action,
cyclooxygenase
inhibition,
could
distinguish
between
most-concern
no-concern
DICT
compounds.
Painting
features
ER
stress
discern
cardiotoxic
non-toxic
While
models
based
on
currently
provide
substantial
accuracy
(AUCPR
=
0.93),
study
underscores
potential
benefits
incorporating
more
comprehensive
future
models.
With
availability
-
omics
future,
promises
enhanced
predictability
delivers
deeper
mechanistic
insights,
paving
way
safer
therapeutic
development.
All
used
are
publicly
at
https://broad.io/DICTrank_Predictor