bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Dec. 23, 2023
Abstract
Physiological
processes,
such
as
epithelial–mesenchymal
transition
(EMT),
are
mediated
by
changes
in
protein
interactions.
These
may
be
better
reflected
covariation
within
cellular
cluster
than
the
temporal
dynamics
of
cluster-average
abundance.
To
explore
this
possibility,
we
quantified
proteins
single
human
cells
undergoing
EMT.
Covariation
analysis
data
revealed
that
functionally
coherent
clusters
dynamically
changed
their
protein-protein
correlations
without
concomitant
were
monotonic
time
and
delineated
modules
functioning
actin
cytoskeleton
organization,
energy
metabolism
transport.
defined
same
point
thus
reflect
biological
regulation
masked
dynamics.
Thus,
correlation
across
offer
a
window
into
during
physiological
transitions.
Nature Reviews Drug Discovery,
Journal Year:
2023,
Volume and Issue:
22(6), P. 496 - 520
Published: April 28, 2023
Single-cell
technologies,
particularly
single-cell
RNA
sequencing
(scRNA-seq)
methods,
together
with
associated
computational
tools
and
the
growing
availability
of
public
data
resources,
are
transforming
drug
discovery
development.
New
opportunities
emerging
in
target
identification
owing
to
improved
disease
understanding
through
cell
subtyping,
highly
multiplexed
functional
genomics
screens
incorporating
scRNA-seq
enhancing
credentialling
prioritization.
ScRNA-seq
is
also
aiding
selection
relevant
preclinical
models
providing
new
insights
into
mechanisms
action.
In
clinical
development,
can
inform
decision-making
via
biomarker
for
patient
stratification
more
precise
monitoring
response
progression.
Here,
we
illustrate
how
methods
being
applied
key
steps
discuss
ongoing
challenges
their
implementation
pharmaceutical
industry.
There
have
been
significant
recent
advances
development
remarkable
Ferran
colleagues
primarily
pipeline,
from
decision-making.
Ongoing
potential
future
directions
discussed.
Genome biology,
Journal Year:
2022,
Volume and Issue:
23(1)
Published: Dec. 16, 2022
Many
biological
processes,
such
as
cell
division
cycle
and
drug
resistance,
are
reflected
in
protein
covariation
across
single
cells.
This
can
be
quantified
interpreted
by
single-cell
mass
spectrometry
with
sufficiently
high
throughput
accuracy.
Nature Methods,
Journal Year:
2023,
Volume and Issue:
20(5), P. 714 - 722
Published: April 3, 2023
Major
aims
of
single-cell
proteomics
include
increasing
the
consistency,
sensitivity
and
depth
protein
quantification,
especially
for
proteins
modifications
biological
interest.
Here,
to
simultaneously
advance
all
these
aims,
we
developed
prioritized
Single-Cell
ProtEomics
(pSCoPE).
pSCoPE
consistently
analyzes
thousands
peptides
across
single
cells
(thus
data
completeness)
while
maximizing
instrument
time
spent
analyzing
identifiable
peptides,
thus
proteome
depth.
These
strategies
increased
sensitivity,
completeness
coverage
over
twofold.
The
gains
enabled
quantifying
variation
in
untreated
lipopolysaccharide-treated
primary
macrophages.
Within
each
condition,
covaried
within
functional
sets,
including
phagosome
maturation
proton
transport,
similarly
both
treatment
conditions.
This
covariation
is
coupled
phenotypic
variability
endocytic
activity.
also
proteolytic
products,
suggesting
a
gradient
cathepsin
activities
condition.
freely
available
widely
applicable,
interest
without
sacrificing
coverage.
Support
at
http://scp.slavovlab.net/pSCoPE
.
Journal of Proteome Research,
Journal Year:
2023,
Volume and Issue:
22(3), P. 697 - 705
Published: Feb. 3, 2023
Accurate
protein
quantification
is
key
to
identifying
markers,
regulatory
relationships
between
proteins,
and
pathophysiological
mechanisms.
Realizing
this
potential
requires
sensitive
deep
analysis
of
a
large
number
samples.
Toward
goal,
proteomics
throughput
can
be
increased
by
parallelizing
the
both
precursors
samples
using
multiplexed
data
independent
acquisition
(DIA)
implemented
plexDIA
framework:
https://plexDIA.slavovlab.net.
Here
we
demonstrate
improved
precisions
retention
time
estimates
within
how
enables
more
accurate
quantification.
has
demonstrated
multiplicative
gains
in
throughput,
these
may
substantially
amplified
improving
multiplexing
reagents,
acquisition,
interpretation.
We
discuss
future
directions
for
advancing
plexDIA,
which
include
engineering
optimized
mass-tags
high-plexDIA,
introducing
isotopologous
carriers,
developing
algorithms
that
utilize
regular
structures
improve
sensitivity,
proteome
coverage,
quantitative
accuracy.
These
advances
will
increase
functional
proteomic
assays,
including
quantifying
conformations,
turnover
dynamics,
modifications
states
activities.
The
sensitivity
assays
extend
single-cell
analysis,
thus
enabling
analysis.
Journal of Proteome Research,
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 25, 2024
Physiological
processes,
such
as
the
epithelial–mesenchymal
transition
(EMT),
are
mediated
by
changes
in
protein
interactions.
These
may
be
better
reflected
covariation
within
a
cellular
cluster
than
temporal
dynamics
of
cluster-average
abundance.
To
explore
this
possibility,
we
quantified
proteins
single
human
cells
undergoing
EMT.
Covariation
analysis
data
revealed
that
functionally
coherent
clusters
dynamically
changed
their
protein–protein
correlations
without
concomitant
were
monotonic
time
and
delineated
modules
functioning
actin
cytoskeleton
organization,
energy
metabolism,
transport.
defined
same
point
and,
thus,
reflect
biological
regulation
masked
dynamics.
Thus,
correlation
across
offers
window
into
during
physiological
transitions.
PROTEOMICS,
Journal Year:
2024,
Volume and Issue:
24(12-13)
Published: May 10, 2024
Abstract
Cancer
harbours
extensive
proteomic
heterogeneity.
Inspired
by
the
prior
success
of
single‐cell
RNA
sequencing
(scRNA‐seq)
in
characterizing
minute
transcriptomics
heterogeneity
cancer,
researchers
are
now
actively
searching
for
information
regarding
proteomics
counterpart.
Therefore
recently,
mass
spectrometry
(SCP)
has
rapidly
developed
into
state‐of‐the‐art
technology
to
cater
need.
This
review
aims
summarize
application
SCP
cancer
research,
while
revealing
current
development
progress
technology.
The
also
contribute
ideas
research
gaps
and
future
directions,
ultimately
promoting
research.
Lab on a Chip,
Journal Year:
2023,
Volume and Issue:
23(7), P. 1726 - 1751
Published: Jan. 1, 2023
This
article
covers
exciting
developments
of
recent
microfluidics-based
single-cell
proteomics
methods
and
their
utilizations
to
tackle
important
biological
questions
for
both
basic
translational
research.