Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
15
Published: Dec. 11, 2024
Introduction
The
emergence
of
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
variants,
notably
delta
and
omicron,
has
significantly
accelerated
the
global
pandemic,
worsening
conditions
worldwide.
However,
there
is
a
lack
research
concerning
molecular
mechanisms
related
to
immune
responses
metabolism
induced
by
these
variants.
Methods
Here,
metabolomics
combined
with
transcriptomics
was
performed
elucidate
immunometabolic
changes
in
lung
hamsters
infected
omicron
Results
Both
variants
caused
inflammation
pathology
intranasally
hamsters.
Principal
component
analysis
uncovered
variant
altered
metabolite
levels
between
pre-
post-infection
states.
Additionally,
metabolic
pathways
determined
assessment
metabolites
genes
revealed
significant
alterations
arginine
biosynthesis,
glutathione
metabolism,
tryptophan
upon
infection
both
closely
linked
inflammatory
cytokines,
indicating
activation
oxidative
stress
response
These
were
also
evident
serum,
validating
presence
systemic
corresponding
those
identified
lung.
Notably,
more
robust
regulation
than
variant.
Discussion
study
suggests
that
multi-omics
valuable
approach
for
understanding
infectious
diseases,
providing
insights
effective
treatment
strategies.
Metabolites,
Journal Year:
2023,
Volume and Issue:
13(8), P. 948 - 948
Published: Aug. 15, 2023
Metabolomics
is
an
analytical
approach
that
involves
profiling
and
comparing
the
metabolites
present
in
biological
samples.
This
scoping
review
article
offers
overview
of
current
metabolomics
approaches
their
utilization
evaluating
metabolic
changes
fluids
occur
response
to
viral
infections.
Here,
we
provide
methods
including
high-throughput
chemistry
multivariate
data
analysis
identify
specific
associated
with
also
focuses
on
interpretation
applications
designed
improve
our
understanding
pathogenesis
these
diseases.
Journal of Proteome Research,
Journal Year:
2025,
Volume and Issue:
24(2), P. 499 - 514
Published: Jan. 13, 2025
Since
late
2021,
Omicron
variants
have
dominated
the
epidemiological
scenario
as
most
successful
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
sublineages,
driving
new
and
breakthrough
infections
globally
over
past
two
years.
In
this
study,
we
investigated
for
first
time
host
salivary
response
of
COVID-19
patients
infected
with
(BA.1,
BA.2,
BA.4/5)
by
using
an
untargeted
four-dimensional
data-independent
acquisition
(4D-DIA)-based
proteomics
approach.
We
identified
137
proteins
whose
abundance
levels
differed
between
positive
negative
groups.
Salivary
signatures
were
mainly
enriched
in
ribosomal
proteins,
linked
to
mRNAviral
translation,
protein
synthesis
processing,
immune
innate,
antiapoptotic
signaling.
The
higher
14-3-3
(YWHAG,
YWHAQ,
YWHAE,
SFN)
saliva,
reported
here,
may
be
associated
increased
infectivity
improved
viral
replicative
fitness.
also
seven
(ACTN1,
H2AC2,
GSN,
NDKA,
CD109,
GGH,
PCYOX)
that
yielded
comprehension
into
infection
performed
outstandingly
screening
a
hospital
setting.
This
panel
presented
enhanced
anti-COVID-19
anti-inflammatory
signature,
providing
insights
disease
severity,
supported
comparisons
other
proteome
data
sets.
signature
provided
valuable
host's
SARS-CoV-2
infection,
shedding
light
on
pathophysiology
COVID-19,
particularly
cases
mild
disease.
It
underscores
potential
clinical
applications
saliva
settings.
Data
are
available
via
ProteomeXchange
identifier
PXD054133.
Cancer & Metabolism,
Journal Year:
2025,
Volume and Issue:
13(1)
Published: March 20, 2025
Arginine
metabolism
in
tumors
is
often
shunted
into
the
pathway
producing
pro-tumor
and
immune
suppressive
polyamines
(PAs),
while
downmodulating
alternative
nitric
oxide
(NO)
synthesis
pathway.
Aiming
to
correct
arginine
tumors,
deprivation
therapy
inhibitors
of
PA
have
been
developed.
Despite
some
therapeutic
advantages,
these
approaches
yielded
severe
side
effects,
making
it
necessary
explore
an
strategy.
We
previously
reported
that
supplementing
sepiapterin
(SEP),
endogenous
precursor
tetrahydrobiopterin
(BH4,
essential
NO
synthase
cofactor),
could
tumor
cells
tumor-associated
macrophages
(TAMs)
induce
their
metabolic
phenotypic
reprogramming.
saw
oral
SEP
treatment
effectively
suppressed
growth
HER2-positive
mammary
animals.
also
has
no
dose-dependent
toxicity
clinical
trials
for
disorders.
In
present
study,
we
tested
our
hypothesis
a
long-term
administration
individuals
susceptible
would
protect
them
against
occurrence.
administered
SEP,
comparison
control
DMSO,
MMTV-neu
mice
8
months
starting
at
pre-pubertal
stage.
monitored
onsets
determine
rate
tumor-free
survival.
After
treatment,
grouped
animals
DMSO
with
or
without
tumors.
analyzed
blood
metabolites,
PBMC,
bone
marrow
vs.
treated
found
use
These
SEP-treated
had
undergone
reprogramming
systemic
immunity,
elevating
total
T
cell
counts
circulation
marrow.
Given
marrow-resident
are
mostly
memory
cells,
plausible
chronic
promoted
formation,
leading
potent
prevention.
findings
suggest
possible
roles
SEP/BH4/NO
axis
promoting
formation
its
potential
utility
preventing
breast
cancer.
Metabolites,
Journal Year:
2024,
Volume and Issue:
14(11), P. 617 - 617
Published: Nov. 12, 2024
Background:
In
2019,
SARS-CoV-2,
the
novel
coronavirus,
entered
world
scene,
presenting
a
global
health
crisis
with
broad
spectrum
of
clinical
manifestations.
Recognizing
significance
metabolomics
as
omics
closest
to
symptomatology,
it
has
become
useful
tool
for
predicting
outcomes.
Several
metabolomic
studies
have
indicated
variations
in
metabolome
corresponding
different
disease
severities,
highlighting
potential
unravel
crucial
insights
into
pathophysiology
SARS-CoV-2
infection.
Methods:
The
PRISMA
guidelines
were
followed
this
scoping
review.
Three
major
scientific
databases
searched:
PubMed,
Directory
Open
Access
Journals
(DOAJ),
and
BioMed
Central,
from
2020
2024.
Initially,
2938
articles
identified
vetted
specific
inclusion
exclusion
criteria.
Of
these,
42
retrieved
analysis
summary.
Results:
Metabolites
that
repeatedly
noted
change
COVID-19
its
severity.
Phenylalanine,
glucose,
glutamic
acid
increased
severity,
while
tryptophan,
proline,
glutamine
decreased,
their
association
Additionally,
pathway
revealed
phenylalanine,
tyrosine
tryptophan
biosynthesis,
arginine
biosynthesis
most
significantly
impacted
pathways
Conclusions:
severity
is
intricately
linked
significant
metabolic
alterations
span
amino
metabolism,
energy
production,
immune
response
modulation,
redox
balance.
PLoS ONE,
Journal Year:
2025,
Volume and Issue:
20(2), P. e0305065 - e0305065
Published: Feb. 12, 2025
Viral
infections
induce
major
shifts
in
cellular
metabolism
elicited
by
active
viral
replication
and
antiviral
responses.
For
the
virus,
harnessing
evading
changes
that
limit
are
essential
for
productive
replication.
In
contrast,
response
to
infection
disrupts
metabolic
pathways
prevent
promote
an
state
host
cell
neighboring
bystander
cells.
This
competition
between
virus
results
measurable
differ
depending
on
type,
extracellular
environment.
The
resulting
can
be
observed
analyzed
using
global
profiling
techniques
identify
critical
either
or
defense.
SARS-CoV-2
is
a
respiratory
exhibit
broad
tissue
tropism
diverse,
yet
inconsistent,
symptomatology.
While
factors
determine
presentation
severity
of
remain
unclear,
syndromes
associated
with
more
severe
manifestations
disease.
Despite
these
observations
knowledge
gap
remains
responses
infection.
Using
well-established
untargeted
metabolomics
analysis
workflow,
we
compared
human
lung
carcinoma
We
identified
significant
correlate
non-productive
information
characterizing
contribute
could
targeted
therapeutic
interventions
Clinical and Translational Science,
Journal Year:
2024,
Volume and Issue:
17(6)
Published: June 1, 2024
Abstract
Following
SARS‐CoV‐2
infection,
some
patients
develop
lingering
neurologic
symptoms
of
post‐acute
sequelae
COVID‐19
(PASC)
that
commonly
include
fatigue
and
“brain
fog.”
PASC
are
also
linked
with
reduced
growth
hormone
(GH)
secretion,
but
GH
treatment
has
not
been
tested
to
relieve
symptoms.
We
enrolled
13
adults
peak
stimulated
secretion
less
than
10
ng/mL
(glucagon
stimulation)
in
a
pilot
study
receive
9
months
daily
injections
an
additional
3
off‐treatment
assessment.
compared
at
baseline
12
assessed
measures
cognition,
metabolism,
body
composition,
physical
performance
over
the
first
6
treatment.
Patient‐reported
outcomes
fatigue,
quality
life,
sleep,
mood
were
recorded
timepoints
6,
9,
months.
was
associated
significantly
improved
scores
for
Brief
Fatigue
Inventory,
Multidimensional
Symptom
Quality
Life
Assessment
Growth
Hormone
Deficiency
Adults,
Profile
Mood
States,
Beck
Depression
Inventory‐II,
no
significant
change
Pittsburgh
Sleep
Index.
Six
adjunct
changes
resting
energy
expenditure,
or
performance.
Peak
altered
following
altered.
Frontiers in Molecular Biosciences,
Journal Year:
2024,
Volume and Issue:
11
Published: Sept. 9, 2024
The
COVID-19
pandemic,
caused
by
SARS-CoV-2,
has
led
to
significant
challenges
worldwide,
including
diverse
clinical
outcomes
and
prolonged
post-recovery
symptoms
known
as
Long
COVID
or
Post-COVID-19
syndrome.
Emerging
evidence
suggests
a
crucial
role
of
metabolic
reprogramming
in
the
infection's
long-term
consequences.
This
study
employs
novel
approach
utilizing
machine
learning
(ML)
explainable
artificial
intelligence
(XAI)
analyze
alterations
patients.
Samples
were
taken
from
cohort
142
COVID-19,
48
Post-COVID-19,
38
control
patients,
comprising
111
identified
metabolites.
Traditional
analysis
methods,
like
PCA
PLS-DA,
compared
with
ML
techniques,
particularly
eXtreme
Gradient
Boosting
(XGBoost)
enhanced
SHAP
(SHapley
Additive
exPlanations)
values
for
explainability.
XGBoost,
combined
SHAP,
outperformed
traditional
demonstrating
superior
predictive
performance
providing
new
insights
into
basis
disease's
progression
aftermath.
revealed
metabolomic
subgroups
within
conditions,
suggesting
heterogeneous
responses
infection
its
impacts.
Key
signatures
include
taurine,
glutamine,
alpha-Ketoglutaric
acid,
LysoPC
C16:0.
highlights
potential
integrating
XAI
fine-grained
description
metabolomics
research,
offering
more
detailed
understanding
anomalies
conditions.
Journal of Medical Virology,
Journal Year:
2023,
Volume and Issue:
95(11)
Published: Nov. 1, 2023
Since
its
outbreak
in
late
2021,
the
Omicron
variant
of
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
has
been
widely
reported
to
be
able
evade
neutralizing
antibodies,
becoming
more
transmissible
while
causing
milder
symptoms
than
previous
SARS-CoV-2
strains.
Understanding
underlying
molecular
changes
infection
and
corresponding
host
responses
are
important
control
COVID-19
pandemic.
In
this
study,
we
report
an
integrative
proteomics
metabolomics
investigation
serum
samples
from
80
patients
infected
with
SARS-CoV-2,
as
well
160
healthy
individuals
who
had
flu-like
but
were
negative
for
infection.
The
multiomics
results
indicated
that
caused
significant
proteome
metabolome
comparing
controls
without
COVID-19.
Protein
metabolite
also
pointed
liver
dysfunctions
potential
damage
other
organs
by
could
roughly
divided
into
two
subgroups
based
on
their
differences.
Interestingly,
subgroup
mostly
received
full
vaccination
booster
shot
fewer
coughing
symptom,
changed
sphingomyelin
lipid
metabolism,
stronger
immune
including
higher
numbers
lymphocytes,
monocytes,
neutrophils,
upregulated
proteins
related
CD4+
T
cells,
CD8+
effector
memory
cells
(Tem),
conventional
dendritic
revealing
beneficial
effects
against
through
changes.
Diseases,
Journal Year:
2024,
Volume and Issue:
12(3), P. 43 - 43
Published: Feb. 23, 2024
The
immune
response
to
infectious
diseases
is
directly
influenced
by
metabolic
activities.
COVID-19
a
disease
that
affects
the
entire
body
and
can
significantly
impact
cellular
metabolism.
Recent
studies
have
focused
their
analysis
on
potential
connections
between
post-infection
stages
of
SARS-CoV2
different
pathways.
spike
S1
antigen
was
found
in
vitro
IgG
antibody
memory
for
PBMCs
when
obtaining
PBMC
cultures
60–90
days
post
infection,
significant
increase
S-adenosyl
homocysteine,
sarcosine,
arginine
detected
mass
spectrometric
analysis.
involvement
these
metabolites
physiological
recovery
from
viral
infections
activity
well
documented,
they
may
provide
new
simple
method
better
comprehend
leukocytes.
Moreover,
there
change
metabolism
tryptophan
urea
cycle
pathways
leukocytes
with
memory.
With
data,
together
results
literature,
it
seems
leukocyte
reprogrammed
after
pathogenesis
activating
certain
amino
acid
pathways,
which
be
related
protective
immunity
against
SARS-CoV2.