Calcium signaling is a universal carbon source signal transducer and effects an ionic memory of past carbon sources
Kobi J. Simpson-Lavy,
No information about this author
Martin Kupiec
No information about this author
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
Summary
Glucose
is
the
preferred
carbon
source
for
most
cells.
However,
cells
may
encounter
other
sources
that
can
be
utilized.
How
match
their
metabolic
gene
expression
to
source,
beyond
a
general
glucose
repressive
system
(catabolite
repression),
remains
little
understood.
By
studying
effect
of
up
seven
different
on
Snf1
phosphorylation
and
downstream
regulated
genes,
we
searched
mechanism
identifies
sources.
We
found
glycolysis
metabolites
glucose-6-phosphate
(G6P)
glucose-1-phosphate
(G1P)
play
central
role
in
adaptation
The
ratio
G1P
G6P
activates
an
analogue
calcium
signaling
via
proton-exporter
Pma1,
regulate
genes.
pathway
bifurcates
with
calcineurin
reducing
ADH2
(alcohol
dehydrogenase)
Cmk1
increasing
ZWF1
(glucose-6-phosphate
expression.
Furthermore,
not
only
by
present
source;
it
also
past
were
able
manipulate
this
ionic
memory
obtain
high
media
containing
galactose.
Our
findings
provide
universal
which
respond
all
Language: Английский
A deadly taste: linking bitter taste receptors and apoptosis
APOPTOSIS,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 20, 2025
Humans
can
perceive
five
canonical
tastes:
salty,
sour,
umami,
sweet,
and
bitter.
These
tastes
are
transmitted
through
the
activation
of
ion
channels
receptors.
Bitter
taste
receptors
(Taste
Family
2
Receptors;
T2Rs)
a
sub-family
25
G-protein
coupled
receptor
(GPCR)
isoforms
that
were
first
identified
in
type
II
bud
cells.
T2Rs
activated
by
broad
array
bitter
agonists,
which
cause
an
increase
intracellular
calcium
(Ca2+)
decrease
cyclic
adenosine
3',5'-monophosphate
(cAMP).
Interestingly,
expressed
beyond
oral
cavity,
where
they
play
diverse
non-taste
roles
cell
physiology
disease.
Here,
we
summarize
literature
explores
role
apoptosis.
Activation
with
agonists
induces
apoptosis
several
cancers,
airway
epithelia,
smooth
muscle,
more.
In
many
these
tissues,
T2R
causes
mitochondrial
Ca2+
overload,
main
driver
This
response
may
be
result
cellular
localization,
nuclear
mobilization
and/or
remnant
established
immunological
other
types.
T2R-induced
could
pharmacologically
leveraged
to
treat
diseases
altered
proliferation.
Future
work
must
explore
additional
extra-oral
T2R-expressing
tissues
for
apoptotic
responses,
develop
methods
in-vivo
studies,
discover
high
affinity
clinical
application.
Language: Английский
Calcium Signaling Is a Universal Carbon Source Signal Transducer and Effects an Ionic Memory of Past Carbon Sources
Kobi J. Simpson-Lavy,
No information about this author
Martin Kupiec
No information about this author
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(5), P. 2198 - 2198
Published: Feb. 28, 2025
Glucose
is
the
preferred
carbon
source
for
most
cells.
However,
cells
may
encounter
other
sources
that
can
be
utilized.
How
match
their
metabolic
gene
expression
to
source,
beyond
a
general
glucose
repressive
system
(catabolite
repression),
remains
little
understood.
By
studying
effect
of
up
seven
different
on
Snf1
phosphorylation
and
downstream
regulated
genes,
we
searched
mechanism
identifies
sources.
We
found
glycolysis
metabolites
glucose-6-phosphate
(G6P)
glucose-1-phosphate
(G1P)
play
central
role
in
adaptation
The
ratio
G1P
G6P
activates
analogue
calcium
signaling
via
proton-exporter
Pma1
regulate
genes.
pathway
bifurcates
with
calcineurin-reducing
ADH2
(alcohol
dehydrogenase)
Cmk1-increasing
ZWF1
(glucose-6-phosphate
expression.
Furthermore,
not
only
by
present
source;
it
also
past
were
able
manipulate
this
ionic
memory
obtain
high
media
containing
galactose.
Our
findings
provide
universal
which
respond
all
Language: Английский
Cyanidin-3-O-Glucoside Mitigates Amyloid-Beta (1–42)-Induced Apoptosis in SH-SY5Y Cells by Regulating Ca2+ Homeostasis and Inhibiting Mitochondrial Dysfunction
Antioxidants,
Journal Year:
2025,
Volume and Issue:
14(4), P. 490 - 490
Published: April 18, 2025
Background:
Blueberry
anthocyanin
such
as
Cyanidin-3-O-glucoside
may
help
prevent
Alzheimer’s
disease.
We
aimed
to
investigate
the
preventive
and
therapeutic
effects
of
against
Aβ1–42-induced
apoptosis
SH-SY5Y
cells
well
underlying
mechanisms.
Methods:
Cell
viability
intracellular
mitochondrial
reactive
oxygen
species
were
detected
by
MTT,
a
detection
kit,
MitoSOX
red
superoxide
indicator.
The
membrane
potential,
calcium
ion
content,
adenotriphophate
(ATP)
identified
via
potential
ATP
was
flow
cytometry.
Transcription
apoptosis-related
genes
using
real-time
fluorescence
quantitative
polymerase
chain
reaction,
expression
proteins
Western
blot.
Results:
found
that
could
downregulate
cytochrome
c,
caspase
9,
3,
other
proteins,
which
consequently
reduced
rate
apoptosis.
Additionally,
it
upregulate
Bcl-2
gene
protein
expression,
Bax
regulate
permeability
calcium-release
channels,
reduce
influx
into
mitochondria,
maintain
levels,
levels
increase
at
normal
level,
functioning,
Discussion:
Taken
together,
showed
dose-dependent
cells.
Conclusions:
Cyanidin
3-O-glucoside
better
effect
than
in
Language: Английский