Biomolecules,
Journal Year:
2024,
Volume and Issue:
14(11), P. 1387 - 1387
Published: Oct. 31, 2024
One-carbon
(1C)
metabolism
is
a
complex
network
of
metabolic
reactions
closely
related
to
producing
1C
units
(as
methyl
groups)
and
utilizing
them
for
different
anabolic
processes,
including
nucleotide
synthesis,
methylation,
protein
reductive
metabolism.
These
pathways
support
the
high
proliferative
rate
cancer
cells.
While
drugs
that
target
(like
methotrexate)
have
been
used
treatment,
they
often
significant
side
effects.
Therefore,
developing
new
with
minimal
effects
necessary
effective
treatment.
Methionine,
glycine,
serine
are
main
three
precursors
vital
not
only
cells
but
also
non-proliferative
in
regulating
energy
homeostasis
aging
process.
Understanding
potential
role
crucial
advancing
our
knowledge
neoplastic
progression.
This
review
provides
comprehensive
understanding
molecular
complexities
context
aging,
paving
way
researchers
explore
avenues
advanced
therapeutic
interventions
cancer.
Microbial Cell Factories,
Journal Year:
2025,
Volume and Issue:
24(1)
Published: May 13, 2025
The
modification
of
single
or
multiple
genes
via
metabolic
engineering
can
lead
to
the
dysregulation
central
metabolism
and
affect
bacterial
growth
metabolite
accumulation.
Meanwhile,
transcription
factor
trigger
network
reprogramming
at
global
systemic
level,
redirecting
flux
toward
synthetic
pathways
target
metabolites.
In
this
study,
we
modulated
pyrimidine
carbon-nitrogen
in
Bacillus
subtilis
through
promote
synthesis
cytidine,
a
drug
intermediate.
First,
cytidine
was
enhanced
by
knocking
out
transcriptional
regulator
PyrR,
which
increased
titer
during
shake
flask
fermentation
0.67
g/L.
Second,
mutations
catabolite
control
protein
A
(CcpA)
significantly
promoted
synthesis,
increasing
2.03
Finally,
after
culture
5
L
fermenter,
reached
7.65
g/L,
3.77-fold
that
fermentation.
Moreover,
yield
productivity
0.06
g/g
glucose
0.16
g/L/h,
respectively,
were
achieved.
Subsequently,
regulatory
mechanisms
PyrR
CcpA
biosynthesis
explored
multi-omics
analysis.
Transcriptome
metabolome
analysis
revealed
coordinated
alterations
carbon,
nitrogen,
nucleotide,
amino
acid
essential
synthesis.
However,
production
recombinant
strains
attributed
enhancement
metabolism,
Phosphotransferase
(PTS)
system,
tricarboxylic
(TCA)
cycle,
pentose
phosphate
(PP)
pathway,
nitrogen
metabolism.
These
results
indicate
knockdown
enhance
pathway
mutation
reprogram
network,
change
flow
de
novo
nucleoside,
increase
supply
precursors
accumulation
cytidine.
Overall,
regulation
engineered
carbon
networks
is
for
improving
efficiency
microbial
cell
factories.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
ABSTRACT
Choline
is
an
essential
nutrient
for
cellular
metabolism,
including
the
biosynthesis
of
phospholipids,
neurotransmitters,
and
one-carbon
metabolism.
A
critical
step
choline
catabolism
mitochondrial
import
synthesis
chorine-derived
methyl
donors,
such
as
betaine.
However,
underlying
mechanisms
biological
significance
remain
insufficiently
understood.
Here,
we
report
that
a
inner-membrane
protein
SLC25A48
controls
transport
in
vivo
.
We
demonstrate
highly
expressed
brown
adipose
tissue
required
whole-body
cold
tolerance,
thermogenesis,
respiration.
Mechanistically,
uptake
into
matrix
via
facilitates
betaine
Importantly,
cells
lacking
exhibited
reduced
purine
nucleotides
failed
to
initiate
G1-to-S
phase
transition,
thereby
leading
cell
death.
Taken
together,
present
study
identified
carrier
mediates
plays
role
respiratory
capacity,
nucleotide
synthesis,
survival.
Key
points
uptake.
Mitochondrial
regulates
contribution
synthesis.
Brown
fat
thermogenesis
requires
capacity.
Cancer
require
Nutrients,
Journal Year:
2024,
Volume and Issue:
16(13), P. 2061 - 2061
Published: June 28, 2024
Globally,
cognitive
impairment
(CI)
is
the
leading
cause
of
disability
and
dependency
among
elderly,
presenting
a
significant
public
health
concern.
However,
there
currently
deficiency
in
pharmacological
interventions
that
can
effectively
cure
or
significantly
reverse
progression
impairment.
Methyl
donor
nutrients
(MDNs),
including
folic
acid,
choline,
vitamin
B12,
have
been
identified
as
potential
enhancers
function.
Nevertheless,
remains
dearth
comprehensive
research
investigating
connection
between
dietary
intake
MDNs
CI.
In
our
study,
we
comprehensively
assessed
relationship
MDNs’
CI
older
adults,
utilizing
16S
rRNA
gene
sequencing
to
investigate
underlying
mechanisms.
The
results
showed
an
obvious
difference
methyl-donor
nutritional
quality
index
(MNQI)
dementia
(D)
group
dementia-free
(DF)
group.
Specifically,
was
lower
MNQI
D
than
DF
For
gut
microbiome,
beta
diversity
flora
exhibited
higher
levels
high
(HQ)
opposed
low
(LQ)
group,
comparison
Subsequently,
performed
correlation
analysis
examine
relative
abundance
microbiota,
MDNs,
Montreal
Cognitive
Assessment
(MoCA)
scores,
ultimately
identifying
ten
genera
with
regulatory
functions.
Additionally,
KEGG
pathway
analyses
suggested
one-carbon
metabolism,
chronic
inflammation,
DNA
synthesis
potentially
serve
pathways
through
which
may
be
promising
for
influencing
These
implied
might
enhance
function
regulation
microbiota
homeostasis.
This
study
offers
recommendations
prevention
management
elderly.
Frontiers in Immunology,
Journal Year:
2024,
Volume and Issue:
15
Published: May 31, 2024
SLE
is
a
complex
autoimmune
disease
with
deleterious
effects
on
various
organs.
Accumulating
evidence
has
shown
abnormal
vitamin
B12
and
one-carbon
flux
contribute
to
immune
dysfunction.
Transcobalamin
II
(TCN2)
belongs
the
B12-binding
protein
family
responsible
for
cellular
uptake
of
B12.
The
role
TCN2
in
still
unclear.
Antioxidants,
Journal Year:
2024,
Volume and Issue:
13(11), P. 1349 - 1349
Published: Nov. 2, 2024
20-Hydroxyecdysone
(20E)
is
an
arthropod
steroid
hormone
that
possesses
a
number
of
beneficial
pharmacological
activities
in
humans,
including
anabolic,
antioxidant,
hypoglycemic,
cardioprotective,
hepatoprotective,
neuroprotective,
and
antineoplastic
properties,
etc.
While
several
studies
have
explored
the
anabolic
activity
20E
muscle
cells,
they
concentrated
on
its
effects
myofibril
size,
protein
biosynthesis
intensity,
myostatin
expression,
without
assessing
energy
metabolism.
In
this
research,
we
demonstrated
boosts
both
catabolism
anabolism,
coupling
energy-producing
biosynthetic
metabolic
processes
mouse
myoblasts
fibroblasts
same
way.
Using
transcriptomic
approach,
identified
20E-mediated
up-regulation
genes
involved
different
processes.
Further
experiments
revealed
increased
levels
enzymes
glycolysis
one-carbon
It
also
uptake
glucose,
glycolysis,
respiration,
production
ATP,
global
fibroblasts.
This
phenomenon
involves
PI3K/AKT/mTOR
signaling
pathway.
Taken
together,
observed
20E-dependent
upregulation
metabolism
may
be
main
reason
for
20E's
well-known
activity.
Cancer Science,
Journal Year:
2024,
Volume and Issue:
115(9), P. 2908 - 2922
Published: July 9, 2024
Abstract
The
relationship
among
polycystic
ovary
syndrome
(PCOS),
endometrial
cancer
(EC),
and
glycometabolism
remains
unclear.
We
explored
shared
genes
between
PCOS
EC,
using
bioinformatics
to
unveil
their
pathogenic
connection
influence
on
EC
prognosis.
Gene
Expression
Omnibus
datasets
GSE226146
(PCOS)
GSE196033
(EC)
were
used.
A
protein–protein
interaction
(PPI)
network
was
constructed
identify
the
central
genes.
Candidate
markers
screened
dataset
GSE54250.
Differences
in
marker
expression
confirmed
mouse
human
tissues
RT‐PCR
immunohistochemistry.
effect
of
PGD
proliferation
migration
Ki‐67
Transwell
assays.
's
impact
glycometabolic
pathway
within
carbon
metabolism
assessed
by
quantifying
glucose
content
lactic
acid
production.
R
software
identified
31
common
GSE196033.
Ontology
functional
classification
revealed
enrichment
“purine
nucleoside
triphosphate
process,”
with
key
Kyoto
Encyclopedia
Genes
Genomes
pathways
related
“carbon
metabolism.”
PPI
15
hub
HK2
,
NDUFS8
PHGDH
SMAD3
as
candidate
markers.
analysis
validated
distinct
patterns
ovarian
tissue
tissue,
well
normal
cells.
Transfection
experiments
Ishikawa
cells
further
PGD's
cell
migration.
Suppression
impeded
cells,
suggesting
a
significant
risk
factor
impacting
through
modulation
single
metabolism.
These
findings
highlight
pivotal
role
onset
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(15), P. 8175 - 8175
Published: July 26, 2024
Carcinogenesis
is
closely
related
to
the
expression,
maintenance,
and
stability
of
DNA.
These
processes
are
regulated
by
one-carbon
metabolism
(1CM),
which
involves
several
vitamins
complex
B
(folate,
B2,
B6,
B12),
whereas
alcohol
disrupts
cycle
due
inhibition
folate
activity.
The
relationship
between
nutrients
1CM
(all
aforementioned
alcohol)
in
breast
cancer
has
been
reviewed.
interplay
genes
was
also
analyzed.
Single
nucleotide
polymorphisms
located
those
were
selected
considering
minor
allele
frequency
Caucasian
population
linkage
disequilibrium.
used
perform
silico
functional
analyses
(considering
corrected
Epigenomes,
Journal Year:
2024,
Volume and Issue:
8(4), P. 38 - 38
Published: Oct. 9, 2024
One-carbon
metabolism
is
a
critical
pathway
for
epigenetic
mechanisms.
Circulating
biomarkers
of
one-carbon
have
been
associated
with
changes
in
nuclear
DNA
methylation
levels
individuals
affected
by
age-related
diseases.
More
and
more
studies
are
showing
that
even
mitochondrial
(mtDNA)
could
be
methylated.
In
particular,
the
displacement
(D-loop)
region
modulates
gene
expression
replication
mtDNA
and,
when
altered,
can
contribute
to
development
human
illnesses.
However,
no
study
until
now
has
demonstrated
an
association
between
circulating
D-loop
levels.