Quantitative N-glycoproteomic analysis reveals glycosylation signatures of plasma immunoglobulin G in systemic sclerosis
Cheng Lu,
No information about this author
Yanhong Li,
No information about this author
Yu Zhou
No information about this author
et al.
Frontiers in Immunology,
Journal Year:
2025,
Volume and Issue:
16
Published: Feb. 7, 2025
Systemic
sclerosis
(SSc)
is
a
perplexing
autoimmune
disorder,
characterized
by
mysterious
causes,
high
mortality
rates,
and
lack
of
effective
treatments.
The
role
abnormal
glycosylation
in
the
onset
diseases
has
been
recognized
for
some
time.
Nonetheless,
intricate
details
intact
glycopeptides
SSc
remain
elusive
owing
to
challenges
their
detection.
In
this
study,
we
plasma
immunoglobulin
G
(IgG)
N-glycopeptides
from
30
patients
healthy
controls
(HCs)
via
our
recently
developed
glycopeptide
analysis
method
GlycoQuant.
Through
approach,
twelve
differentially
expressed
were
identified.
correlation
specific
with
clinical
features
was
analyzed.
results
revealed
notable
increase
levels
6
(IgG2-N3H3F1,
IgG2-N3H4F1,
IgG2-N4H4F1,
IgG2-N4H5F1,
IgG2-N5H4F1,
IgG2-N5H5F1)
decrease
another
set
(IgG1-N4H3F1,
IgG2-N3H6F1A1,
IgG2-N4H4F1A1,
IgG2-N5H3F1,
IgG3-N4H3F1,
IgG3-N4H4F1).
These
changes
are
associated
various
aspects
SSc,
including
diffuse
(dSSc),
interstitial
lung
disease
(ILD),
progression,
cardiovascular
involvement
C-reactive
protein
peripheral
blood.
summary,
study
offers
detailed
overview
N-glycopeptide
profile
blood
providing
valuable
insights
that
could
propel
further
research
into
SSc.
Language: Английский
Enhanced Analysis of Low-Abundance Proteins in Soybean Seeds Using Advanced Mass Spectrometry
Bo Meng,
No information about this author
Yuan‐Yuan Huang,
No information about this author
Lu Ao
No information about this author
et al.
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(3), P. 949 - 949
Published: Jan. 23, 2025
This
study
presents
an
advanced
approach
for
the
comprehensive
analysis
of
low-abundance
proteins
in
soybean
seeds,
addressing
challenges
posed
by
high-abundance
storage
proteins.
We
compared
effectiveness
Data-Dependent
Acquisition
(DDA),
Data-Independent
(DIA),
and
BoxCar
mass
spectrometry
techniques
to
identify
two
types
seeds:
High-Oil
High-Protein
seeds.
The
results
indicate
that
DIA
method,
particularly
methods,
significantly
improve
detection
DDA,
offering
deeper
insights
into
seed
biology.
Specifically,
BoxCar-based
revealed
distinct
proteomic
differences
between
highlighting
more
active
metabolic
processes
Additionally,
several
key
were
identified
annotated
as
uniquely
expressed
either
or
These
findings
emphasize
importance
techniques,
such
BoxCar,
deepening
our
understanding
biology
supporting
breeding
strategies
nutritional
qualities.
Language: Английский
Deciphering N-Glycosylation Dynamics of Serum Monoclonal Immunoglobulins in Multiple Myeloma via EThcD-sceHCD-MS/MS
Huixian Li,
No information about this author
Wanhong Lu,
No information about this author
Jin Qian
No information about this author
et al.
Journal of Proteome Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 9, 2025
Serum
glycoprotein
glycosylation
changes
can
indicate
disease
onset
and
progression.
However,
the
site-specific
N-glycosylation
of
monoclonal
immunoglobulins
(M-proteins)
in
multiple
myeloma
(MM)
its
clinical
implications
are
unclear.
In
this
study,
we
isolated
pathogenic
micromonoclonal
IgA
or
IgG
(approximately
2
μg)
from
IgA-MM
patients
(n
=
22)
IgG-MM
30),
normal
polyclonal
healthy
controls
(HCs)
16).
Using
EThcD-sceHCD-MS/MS,
dynamics
serum
M-proteins
MM
were
determined.
Compared
with
IgA1
HCs,
had
higher
fucosylation
(58.1%
vs
32.1%,
p
<
0.001),
sialylation
(68.0%
50.8%,
0.011),
mannosylation
(1.5%
0.3%,
0.001).
While,
IgG1
(97.8%
95.3%,
addition,
specific
N-glycan
abundances
correlated
features:
for
IgA1,
HexNAc5Hex5Fuc1NeuAc1
was
associated
hypocomplementemia;
IgG1,
HexNAc4Hex3Fuc1
albumin
level
(r
-0.363,
0.049)
estimated
glomerular
filtration
rate
-0.433,
0.017);
HexNAc4Hex5
therapeutic
prognosis.
conclusion,
their
isotypes
HCs
have
distinct
profiles,
N-glycans
characteristics
Language: Английский
GlycoIP: an integrated platform for simultaneous and site-specific N/O-glycosylation analysis of human semen
Frontiers in Chemistry,
Journal Year:
2025,
Volume and Issue:
13
Published: May 19, 2025
Protein
glycosylation
plays
a
pivotal
role
in
human
semen,
influencing
various
processes,
such
as
spermatogenesis,
maturation,
sperm
motility,
capacitation,
and
fertilization.
Despite
its
importance,
the
specific
details
regarding
N/O-
within
semen
proteins
have
largely
remained
unknown.
To
address
this
challenge,
an
integrated
glycoproteomic
platform
(termed
GlycoIP)
was
developed,
enabling
simultaneous
analysis
of
both
intact
N-
O-
glycopeptides
directly
from
samples.
Characterizing
these
is
particularly
challenging,
yet
it
provides
invaluable
insights
into
structure
function
glycans
their
attachment
sites.
In
study,
our
enabled
identification
1,833
unique
720
glycopeptides.
This
approach
revealed
extensive
precise
site-specific
data,
highlighting
438
potential
sites
148
distinct
glycoproteins.
Notably,
we
conducted
profiling
on
several
glycoproteins,
including
equatorial
segment
protein
1
(SPESP1),
which
located
sperm,
plasma
serine
protease
inhibitor
(SERPINA5),
presented
seminal
plasma.
summary,
promising
for
comprehensive
single
experiment.
advancement
paves
way
further
functional
studies
glycoproteins
roles
male
infertility,
enhancing
understanding
complex
field.
Language: Английский
GlycoPCT: Pressure Cycling Technology-Based Quantitative Glycoproteomics Reveals Distinctive N-Glycosylation in Human Liver Biopsy Samples of Nonalcoholic Fatty Liver Disease
Wei Jiang,
No information about this author
Min Liu,
No information about this author
Tao Su
No information about this author
et al.
Journal of Proteome Research,
Journal Year:
2024,
Volume and Issue:
24(1), P. 202 - 209
Published: Nov. 27, 2024
Protein
N-glycosylation
is
vital
in
the
human
liver
and
influences
functions
such
as
lipid
metabolism,
apoptosis,
inflammation.
However,
site-specific
patterns
variations
biopsy
samples
between
healthy
individuals
those
with
nonalcoholic
fatty
disease
(NAFLD)
remain
incompletely
characterized,
primarily
due
to
limitations
of
current
clinical
glycoproteomic
methods,
including
a
large
demand
for
samples,
low
efficiency
tissue
protein
extraction,
recovery
rate
intact
N-glycopeptides
(IGPs).
To
address
this
issue,
we
developed
GlycoPCT,
quantitative
method
based
on
pressure
cycling
technology.
It
enables
efficient
IGPs
accurate
analysis
trace
samples.
Our
research
revealed
total
4,459
unique
361
glycans
from
758
glycoproteins.
High-mannose
type,
complex
fucosylation
sialylation
type
N-glycans
were
significantly
upregulated
NAFLD
group
(p
<
0.001,
t
test).
Notably,
also
identified
182
67
proteins
0.05,
FC
>
1.50)
108
downregulated
44
0.67)
group.
Furthermore,
highlighted
an
essential
acute
phase
glycoprotein,
alpha-1-acid
glycoprotein
1
(A1TA),
which
synthesized
plays
significant
role
progression.
These
novel
glyco-signatures
provide
crucial
clues
diagnosis
pathogenesis
NAFLD.
Language: Английский
Quantitative site-specific N-glycosylation analysis reveals IgG glyco-signatures for pancreatic cancer diagnosis
Yizheng Jin,
No information about this author
Ran Hu,
No information about this author
Yufan Gu
No information about this author
et al.
Clinical Proteomics,
Journal Year:
2024,
Volume and Issue:
21(1)
Published: Dec. 1, 2024
Pancreatic
cancer
is
a
highly
aggressive
tumor
with
poor
prognosis
due
to
low
early
detection
rate
and
lack
of
biomarkers.
Most
pancreatic
ductal
adenocarcinoma
(PDAC).
Alterations
in
the
N-glycosylation
plasma
immunoglobulin
G
(IgG)
have
been
shown
be
closely
associated
onset
development
several
cancers
could
used
as
biomarkers
for
diagnosis.
The
study
aimed
explore
intact
profile
IgG
patients
PDAC
find
relation
between
clinical
information
such
diagnosis
prognosis.
Language: Английский
Site-Specific Quantitative N-Glycoproteomics: The Great Clinical Application Potential of GlycoQuant
Phenomics,
Journal Year:
2024,
Volume and Issue:
4(4), P. 394 - 396
Published: July 29, 2024
Language: Английский
ProteoNet: A CNN-based Framework for Analyzing Proteomics MS-RGB Images
iScience,
Journal Year:
2024,
Volume and Issue:
27(12), P. 111362 - 111362
Published: Nov. 12, 2024
Proteomics
is
crucial
in
clinical
research,
yet
the
application
of
proteomic
data
remains
challenging.
Transforming
mass
spectrometry
(MS)
into
red,
green,
and
blue
color
(MS-RGB)
image
formats
applying
deep
learning
(DL)
techniques
has
shown
great
potential
to
enhance
analysis
efficiency.
However,
current
DL
models
often
fail
extract
subtle,
features
from
MS-RGB
data.
To
address
this,
we
developed
ProteoNet,
a
framework
that
refines
analysis.
ProteoNet
incorporates
semantic
partitioning,
adaptive
average
pooling,
weighted
factors
Convolutional
Neural
Network
(CNN)
model,
thus
enhancing
accuracy.
Our
experiments
with
proteomics
urine,
blood,
tissue
samples
related
liver,
kidney,
thyroid
diseases
demonstrate
outperforms
existing
also
provides
direct
conversion
method
for
data,
enabling
seamless
workflow.
Moreover,
its
compatibility
various
CNN
architectures,
including
lightweight
like
MobileNetV2,
underscores
scalability
potential.
Language: Английский
Tools and techniques for quantitative glycoproteomic analysis
Biochemical Society Transactions,
Journal Year:
2024,
Volume and Issue:
52(6), P. 2439 - 2453
Published: Dec. 10, 2024
Recent
advances
in
mass
spectrometry
(MS)-based
methods
have
significantly
expanded
the
capabilities
for
quantitative
glycoproteomics,
enabling
highly
sensitive
and
accurate
quantitation
of
glycosylation
at
intact
glycopeptide
level.
These
developments
provided
valuable
insights
into
roles
glycoproteins
various
biological
processes
diseases.
In
this
short
review,
we
summarize
pertinent
studies
on
techniques
tools
site-specific
glycoproteomic
analysis
published
over
past
decade.
We
also
highlight
state-of-the-art
MS-based
software
that
facilitate
multi-dimension
quantification
glycoproteome,
targeted
specific
glycopeptides,
isomers.
Additionally,
discuss
potential
applications
these
technologies
clinical
biomarker
discovery
functional
characterization
health
disease.
The
review
concludes
with
a
discussion
current
challenges
future
perspectives
field,
emphasizing
need
more
precise,
high-throughput
efficient
to
further
advance
glycoproteomics
its
applications.
Language: Английский
Comparative Proteomics and N-Glycoproteomics Reveal the Effects of Different Plasma Protein Enrichment Technologies
Huohuan Tian,
No information about this author
Ze Tao,
No information about this author
Wanli Zhang
No information about this author
et al.
Journal of Proteome Research,
Journal Year:
2024,
Volume and Issue:
24(1), P. 134 - 143
Published: Dec. 13, 2024
Human
plasma
proteomic
and
glycoproteomic
analyses
have
emerged
as
an
alternate
avenue
to
identify
disease
biomarkers
therapeutic
approaches.
However,
the
vast
number
of
high-abundance
proteins
in
can
cause
mass
spectrometry
(MS)
suppression,
which
makes
it
challenging
detect
low-abundance
(LAP).
Currently,
immunoaffinity-based
depletion
methods
strategies
involving
nanomaterial
protein
coronas
been
developed
remove
(HAP)
enhance
depth
identification.
Despite
these
advancements,
there
is
a
lack
systematic
comparison
evaluation
qualitative
quantitative
effects
different
on
human
proteome
glycoproteome.
In
this
study,
we
evaluated
performance
four
including
combinatorial
peptide
ligand
libraries
(CPLL),
Top
2,
14,
corona
formed
by
magnetic
nanoparticles
(MN)
both
proteomics
N-glycoproteomics.
Compared
CPLL,
14
strategies,
MN
approach
significantly
increased
identified
peptides
proteins.
demonstrated
relatively
lower
efficacy
identifying
intact
N-glycopeptides
N-glycoproteins.
contrast,
are
better
suited
glycoproteomics
due
higher
identification
numbers.
We
believe
that
work
provides
valuable
insights
options
for
various
research
objectives,
well
clinical
applications.
Language: Английский