Proceedings of the National Academy of Sciences,
Journal Year:
2019,
Volume and Issue:
116(42), P. 21191 - 21197
Published: Sept. 5, 2019
Significance
As
a
critical
component
of
healthy
memory
management
system,
forgetting
has
received
increasing
attention.
Studies
across
multiple
species
support
important
roles
actin
remodeling
in
forgetting.
However,
the
underlying
molecular
mechanisms
remain
unclear.
In
Drosophila
,
Rac1
and
Cdc42,
2
Rho
GTPases
that
act
as
signaling
hubs
to
coordinate
remodeling,
were
reported
mediate
labile
consolidated
memories,
respectively.
Here,
we
showed
Cdc42
exert
their
effects
on
by
acting
through
different
polymerization
pathways,
Rac1/SCAR/Dia
Cdc42/WASp/Arp2/3
complexes.
These
findings
fill
landscape
link
at
cellular
level
shed
light
drug
development
aims
tune
treat
memory-related
diseases.
Nature Communications,
Journal Year:
2019,
Volume and Issue:
10(1)
Published: Nov. 22, 2019
Memory
consolidation
theory
suggests
that
once
memory
formation
has
been
completed,
is
maintained
at
a
stable
strength
and
incapable
of
further
enhancement.
However,
the
current
study
reveals
even
long
after
formation,
contextual
fear
could
be
enhanced.
Such
unexpected
enhancement
possible
because
dynamically
an
intermediate
level
allows
for
bidirectional
regulation.
Here
we
find
both
Rac1
activation
expression
α2-chimaerin
are
stimulated
by
single-trial
conditioning.
sustained
activity
mediates
reversible
forgetting,
acts
as
molecule
reverses
forgetting
to
sustain
through
inhibition
during
maintenance
stage.
Therefore,
balance
between
activated
expressed
defines
dynamic
long-term
maintenance.
Our
findings
demonstrate
consolidated
maintains
capacity
Proceedings of the National Academy of Sciences,
Journal Year:
2019,
Volume and Issue:
116(42), P. 21191 - 21197
Published: Sept. 5, 2019
Significance
As
a
critical
component
of
healthy
memory
management
system,
forgetting
has
received
increasing
attention.
Studies
across
multiple
species
support
important
roles
actin
remodeling
in
forgetting.
However,
the
underlying
molecular
mechanisms
remain
unclear.
In
Drosophila
,
Rac1
and
Cdc42,
2
Rho
GTPases
that
act
as
signaling
hubs
to
coordinate
remodeling,
were
reported
mediate
labile
consolidated
memories,
respectively.
Here,
we
showed
Cdc42
exert
their
effects
on
by
acting
through
different
polymerization
pathways,
Rac1/SCAR/Dia
Cdc42/WASp/Arp2/3
complexes.
These
findings
fill
landscape
link
at
cellular
level
shed
light
drug
development
aims
tune
treat
memory-related
diseases.