Metabolic Atlas of Early Human Cortex Identifies Regulators of Cell Fate Transitions
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2025,
Номер
unknown
Опубликована: Март 11, 2025
Abstract
Characterization
of
cell
type
emergence
during
human
cortical
development,
which
enables
unique
cognition,
has
focused
primarily
on
anatomical
and
transcriptional
characterizations.
Metabolic
processes
in
the
brain
that
allow
for
rapid
expansion,
but
contribute
to
vulnerability
neurodevelopmental
disorders,
remain
largely
unexplored.
We
performed
a
variety
metabolic
assays
primary
tissue
stem
derived
organoids
observed
dynamic
changes
core
functions,
including
an
unexpected
increase
glycolysis
late
neurogenesis.
By
depleting
glucose
levels
organoids,
we
increased
outer
radial
glia,
astrocytes,
inhibitory
neurons.
found
pentose
phosphate
pathway
(PPP)
was
impacted
these
experiments
leveraged
pharmacological
genetic
manipulations
recapitulate
glia
fate
changes.
These
data
identify
new
role
PPP
modulating
specification
generate
resource
future
exploration
additional
pathways
development.
Язык: Английский
Fatty acid synthase global inducible knockout does not alter brain fatty acid concentrations but attenuates cholesterol synthesis in the adult mouse
Prostaglandins Leukotrienes and Essential Fatty Acids,
Год журнала:
2025,
Номер
unknown, С. 102679 - 102679
Опубликована: Март 1, 2025
Язык: Английский
Unraveling Tissue‐Specific Fatty Acid Biosynthesis and Inter‐Tissue Crosstalk in Mice through Stable‐Isotope Tracing Metabolomics
Bin Xing,
Ruohong Wang,
Tianzhang Kou
и другие.
Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 30, 2025
Abstract
Biosynthesis
of
free
fatty
acids
(FFAs)
in
mammals
is
pivotal
for
metabolic
homeostasis,
yet
a
comprehensive
understanding
tissue‐specific
biosynthesis
and
inter‐tissue
crosstalk
FFAs
remains
incomplete.
In
vivo
stable‐isotope
tracing
metabolomics
utilized
to
comprehensively
measure
FFA
mice.
Systematically
assessing
13
across
15
tissues
unveils
dynamic
spatial
temporal
accumulation
redistribution
throughout
the
body.
Employing
an
analytical
framework
deconvolve
mass
isotopologue
patterns,
explored
saturated,
polyunsaturated,
monounsaturated
FFAs,
quantify
communications
(16:0)
(18:0)
between
liver
other
tissues.
Then,
decline
acid
peripheral
but
not
brain
aged
mice
observed,
particularly
evident
palmitic
acids.
These
findings
illuminate
complex
interplay
maintenance
homeostasis.
Язык: Английский