Massively parallel sample preparation for multiplexed single-cell proteomics using nPOP
Nature Protocols,
Journal Year:
2024,
Volume and Issue:
19(12), P. 3750 - 3776
Published: Aug. 8, 2024
Language: Английский
Single-Cell Proteomic Characterization of Drug-Resistant Prostate Cancer Cells Reveals Molecular Signatures Associated with Morphological Changes
Molecular & Cellular Proteomics,
Journal Year:
2025,
Volume and Issue:
unknown, P. 100949 - 100949
Published: March 1, 2025
This
study
delves
into
the
proteomic
intricacies
of
drug-resistant
cells
(DRCs)
within
prostate
cancer,
which
are
known
for
their
pivotal
roles
in
therapeutic
resistance,
relapse,
and
metastasis.
Utilizing
single-cell
proteomics
(SCP)
with
an
optimized
high-throughput
Data
Independent
Acquisition
(DIA)
approach
throughput
60
sample
per
day,
we
characterized
landscape
DRCs
comparison
to
parental
PC3
cells.
DIA
method
allowed
robust
reproducible
protein
quantification
at
level,
enabling
identification
over
1,300
proteins
cell
on
average.
Distinct
sub-clusters
DRC
population
were
identified,
closely
linked
variations
size.
The
uncovered
novel
signatures,
including
regulation
critical
adhesion
metabolic
processes,
as
well
upregulation
surface
transcription
factors
cancer
progression.
Furthermore,
by
conducting
RNA-seq
(scRNA-seq)
analysis,
identified
six
upregulated
ten
downregulated
genes
consistently
altered
drug-treated
across
both
SCP
scRNA-seq
platforms.
These
findings
underscore
heterogeneity
unique
molecular
providing
valuable
insights
biological
behavior
potential
targets.
Language: Английский
Data-Independent Acquisition Shortens the Analytical Window of Single-Cell Proteomics to Fifteen Minutes in Capillary Electrophoresis Mass Spectrometry
Journal of Proteome Research,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 26, 2024
Separation
in
single-cell
mass
spectrometry
(MS)
improves
molecular
coverage
and
quantification;
however,
it
also
elongates
measurements,
thus
limiting
analytical
throughput
to
study
large
populations
of
cells.
Here,
we
advance
the
speed
bottom-up
proteomics
by
capillary
electrophoresis
(CE)
high-resolution
for
proteomics.
We
adjust
applied
potential
readily
control
duration
electrophoresis.
On
HeLa
proteome
standard,
shorter
separation
times
curbed
detection
using
data-dependent
acquisition
(DDA)
but
not
data-independent
(DIA)
on
an
Orbitrap
analyzer.
This
DIA
method
identified
1161
proteins
vs
401
reference
DDA
within
a
15
min
effective
from
single
HeLa-cell-equivalent
(∼200
pg)
digests.
Label-free
quantification
found
these
exclusively
DIA-identified
lower
domain
concentration
range,
revealing
sensitivity
improvement.
The
approach
significantly
advanced
reproducibility
quantification,
where
∼76%
DIA-quantified
had
<20%
coefficient
variation
∼43%
DDA.
As
proof
principle,
allowed
us
quantify
1242
subcellular
niches
single,
neural-tissue
fated
cell
live
Language: Английский
Trends in Mass Spectrometry-Based Single-Cell Proteomics
Analytical Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 16, 2025
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ReviewMarch
16,
2025Trends
in
Mass
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Single-Cell
ProteomicsClick
to
copy
article
linkArticle
link
copied!Ximena
Sanchez-AvilaXimena
Sanchez-AvilaDepartment
of
Chemistry
Biochemistry,
Brigham
Young
University,
Provo,
Utah
84602,
United
StatesMore
by
Ximena
Sanchez-AvilaView
BiographyRaphaela
M.
de
OliveiraRaphaela
OliveiraDepartment
Raphaela
OliveiraView
BiographySiqi
HuangSiqi
HuangDepartment
Siqi
HuangView
BiographyChao
WangChao
WangDepartment
Chao
WangView
Biographyhttps://orcid.org/0009-0008-6197-2985Ryan
T.
Kelly*Ryan
KellyDepartment
States*Email:
[email
protected]More
Ryan
KellyView
Biographyhttps://orcid.org/0000-0002-3339-4443Other
Access
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ChemistryCite
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Anal.
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2025,
XXXX,
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copied!https://pubs.acs.org/doi/10.1021/acs.analchem.5c00661https://doi.org/10.1021/acs.analchem.5c00661Published
March
2025
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Received
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2025Accepted
February
2025Revised
23
2025Published
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Cells
Isolation
spectrometry
Peptides
proteins
Sample
preparation
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Articles
Language: Английский
Single-cell proteomics of Arabidopsis leaf mesophyll identifies drought stress-related proteins
James Fulcher,
No information about this author
Pranav Dawar,
No information about this author
Vimal Kumar Balasubramanian
No information about this author
et al.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 3, 2024
Abstract
The
application
of
single-cell
omics
tools
to
biological
systems
can
provide
unique
insights
into
diverse
cellular
populations
and
their
heterogeneous
responses
internal
external
perturbations.
Thus
far,
most
studies
in
plant
have
been
limited
RNA-sequencing
approaches,
which
only
indirect
readouts
functions.
Here,
we
present
a
proteomics
workflow
for
cells
that
integrates
tape-sandwich
protoplasting,
piezoelectric
cell
sorting,
nanoPOTS
sample
preparation,
FAIMS-based
MS
data
acquisition
method
label-free
analysis
Arabidopsis
leaf
mesophyll
cells.
From
single
protoplast,
over
3,000
proteins
were
quantified
with
high
precision.
is
demonstrated
identify
stress
associated
changes
protein
abundance
by
analyzing
>80
protoplasts
from
well-watered
water-deficit
stressed
plants.
Additionally,
describe
new
approach
constructing
covarying
networks
at
the
level
demonstrate
how
covariation
reveal
previously
unrecognized
functions
while
also
capturing
stress-induced
protein-protein
dynamics.
Highlights
This
study
describes
first
scProteomics
abiotic
proteome
regulation
∼2800
on
average
precision
using
label
free
leaves
revealed
known
novel
involved
drought
response
Single-protoplast
water
deficit-induced
independent
Language: Английский
The current economics and throughput of single cell proteomics by liquid chromatography mass spectrometry
Published: June 11, 2024
Single
cell
proteomics
by
mass
spectrometry
(SCP)
is
an
emerging
field
of
study
that
has
captured
the
interest
and
imagination
biologists
in
a
wide
array
disciplines.
In
pursuit
this
new
dizzying
technologies
techniques
have
demonstrated
ability
to
quantify
hundreds
few
thousand
proteins
single
mammalian
cells
typical
size.
One
striking
characteristic
these
methods
range
relative
costs
associated
with
analysis
each
cell.
We
attempted
estimate
cost
per
across
17
different
studies
based
on
quotes
we
obtained
for
hardware,
reagents
instrument
support
plans
relation
number
can
be
analyzed
day.
Before
including
labor
or
facilities,
find
analyze
size
from
less
than
<$2
over
$50
The
increase
appears
directly
related
decrease
throughput
as
measured
theoretical
maximum
Perhaps
most
surprising
observation
average
year.
This
when
compared
emergence
RNA
sequencing
where
increased,
cost/cell
decreased
exponentially
first
7
years
field’s
emergence.
While
made
many
assumptions
obtain
estimates,
hope
will
informative
scientists
interested
obtaining
SCP
data
spectrometrists
who
are
considering
entering
field.
provided
spreadsheet
simple
calculator
supplemental
allow
others
adjust
our
calculations
other
variables
which
inevitably
described
future.
Language: Английский
DESP demixes cell-state profiles from dynamic bulk molecular measurements
Cell Reports Methods,
Journal Year:
2024,
Volume and Issue:
4(3), P. 100729 - 100729
Published: March 1, 2024
Understanding
the
dynamic
expression
of
proteins
and
other
key
molecules
driving
phenotypic
remodeling
in
development
pathobiology
has
garnered
widespread
interest,
yet
exploration
these
systems
at
foundational
resolution
underlying
cell
states
been
significantly
limited
by
technical
constraints.
Here,
we
present
DESP,
an
algorithm
designed
to
leverage
independent
estimates
cell-state
proportions,
such
as
from
single-cell
RNA
sequencing,
resolve
relative
contributions
bulk
molecular
measurements,
most
notably
quantitative
proteomics,
recorded
parallel.
We
applied
DESP
vitro
model
epithelial-to-mesenchymal
transition
demonstrated
its
ability
accurately
reconstruct
signatures
bulk-level
measurements
both
proteome
transcriptome,
providing
insights
into
transient
regulatory
mechanisms.
provides
a
generalizable
computational
framework
for
modeling
relationship
between
enabling
study
proteomes
profiles
level
using
established
workflows.
Language: Английский
Single-Cell Proteomic and Transcriptomic Characterization of Drug-Resistant Prostate Cancer Cells Reveals Molecular Signatures Associated with Morphological Changes
Jongmin Jacob Woo,
No information about this author
Michael Loycano,
No information about this author
Md Amanullah
No information about this author
et al.
Published: Oct. 28, 2024
Abstract
This
study
delves
into
the
proteomic
intricacies
of
drug-resistant
cells
(DRCs)
within
prostate
cancer,
which
are
known
for
their
pivotal
roles
in
therapeutic
resistance,
relapse,
and
metastasis.
Utilizing
single-cell
proteomics
(SCP)
with
an
optimized
high-throughput
Data
Independent
Acquisition
(DIA)
approach
throughput
60
sample
per
day,
we
characterized
landscape
DRCs
comparison
to
parental
PC3
cells.
DIA
method
allowed
robust
reproducible
protein
quantification
at
level,
enabling
identification
over
1,300
proteins
cell
on
average.
Distinct
sub-clusters
DRC
population
were
identified,
closely
linked
variations
size.
The
uncovered
novel
signatures,
including
regulation
critical
adhesion
metabolic
processes,
as
well
upregulation
surface
transcription
factors
cancer
progression.
Furthermore,
by
integrating
SCP
RNA-seq
(scRNA-seq)
data,
identified
six
upregulated
ten
downregulated
genes
consistently
altered
drug-treated
across
both
scRNA-seq
platforms.
These
findings
underscore
heterogeneity
unique
molecular
providing
valuable
insights
biological
behavior
potential
targets.
Language: Английский