Intracellular cAMP signaling-induced Ca2+ influx mediated by calcium homeostasis modulator 1 (CALHM1) in human odontoblasts
Maki Kimura,
No information about this author
Sachie Nomura,
No information about this author
Takehito Ouchi
No information about this author
et al.
Pflügers Archiv - European Journal of Physiology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 12, 2024
Abstract
In
odontoblasts,
intracellular
Ca
2+
signaling
plays
key
roles
in
reactionary
dentin
formation
and
generation
of
dentinal
pain.
Odontoblasts
also
express
several
G
s
protein-coupled
receptors
that
promote
production
cyclic
AMP
(cAMP).
However,
the
crosstalk
between
cAMP
signaling,
as
well
role
cellular
functions
remains
unclear.
this
study,
we
measured
levels
free
concentration
([Ca
]
i
).
We
investigated
effect
on
mineralization
by
odontoblasts.
presence
extracellular
,
application
forskolin
(adenylyl
cyclase
activator)
or
isoproterenol
(G
beta-2
adrenergic
receptor
agonist)
increased
[Ca
The
increases
could
not
be
observed
removing
indicating
is
capable
to
activate
entry.
Forskolin-induced
increase
was
inhibited
a
protein
kinase
A
inhibitor
sensitive
Gd
3+
2APB,
Zn
but
verapamil,
ML218,
La
.
immunofluorescence
analyses,
odontoblasts
were
immunopositive
for
calcium
homeostasis
modulator
1
(CALHM1),
which
found
close
ionotropic
ATP
subtype,
P2X
3
receptors.
When
CALHM1
knocked
down,
forskolin-induced
suppressed.
Alizarin
red
von
Kossa
staining
showed
decreased
mineralization.
These
findings
suggest
activation
adenylyl
elicited
level
influx
via
Subsequent
cAMP-dependent
mediated
addition,
pathway
negatively
dentinogenesis.
Language: Английский
Cellular Signaling for Dental Physiological Functions
Takehito Ouchi,
No information about this author
Taneaki Nakagawa
No information about this author
Biomolecules,
Journal Year:
2023,
Volume and Issue:
13(8), P. 1177 - 1177
Published: July 28, 2023
Teeth
are
unique
and
multifaceted
tissues
that
necessary
for
routine
functions,
such
as
crushing
food
constructing
articulated
sounds,
well
esthetic
symbols
[...].
Language: Английский