Proceedings of the National Academy of Sciences,
Год журнала:
2024,
Номер
121(16)
Опубликована: Апрель 9, 2024
Mosquito-borne
flaviviruses
such
as
dengue
(DENV)
and
Zika
(ZIKV)
cause
hundreds
of
millions
infections
annually.
The
single-stranded
RNA
genome
is
translated
into
a
polyprotein,
which
cleaved
equally
individual
functional
proteins.
While
structural
proteins
are
packaged
progeny
virions
released,
most
the
nonstructural
remain
intracellular
could
become
cytotoxic
if
accumulated
over
time.
However,
mechanism
by
maintained
at
levels
optimal
for
cellular
fitness
viral
replication
remains
unknown.
Here,
we
identified
that
ubiquitin
E3
ligase
HRD1
essential
in
both
mammalian
hosts
mosquitoes.
directly
interacts
with
flavivirus
NS4A
ubiquitylates
conserved
lysine
residue
ER-associated
degradation.
This
avoids
excessive
accumulation
NS4A,
otherwise
interrupts
expression
processed
ER.
Furthermore,
small-molecule
inhibitor
named
LS-102
effectively
DENV2
infection
mice
Aedes
aegypti
mosquitoes,
significantly
disturbs
DENV
transmission
from
infected
to
mosquitoes
owing
reduced
viremia.
Taken
together,
this
study
demonstrates
have
evolved
sophisticated
exploit
ubiquitination
system
balance
homeostasis
their
own
advantage
provides
potential
therapeutic
target
interrupt
transmission.
Biochemistry,
Год журнала:
2022,
Номер
62(3), С. 601 - 623
Опубликована: Июль 20, 2022
Targeted
protein
degradation
is
a
rapidly
exploding
drug
discovery
strategy
that
uses
small
molecules
to
recruit
disease-causing
proteins
for
rapid
destruction
mainly
via
the
ubiquitin-proteasome
pathway.
It
shows
great
potential
treating
diseases
such
as
cancer
and
infectious,
inflammatory,
neurodegenerative
diseases,
especially
those
with
"undruggable"
pathogenic
targets.
With
recent
rise
of
"molecular
glue"
type
degraders,
which
tighten
simplify
connection
an
E3
ligase
ubiquitination
subsequent
degradation,
new
therapies
unmet
medical
needs
are
being
designed
developed.
Here
we
use
data
from
CAS
Content
Collection
publication
landscape
research
on
targeted
degraders
provide
insights
into
these
molecules,
special
focus
molecular
glues.
We
also
outline
advantages
glues
summarize
advances
in
practices
glue
degraders.
further
thorough
review
candidates
through
recruitment.
Finally,
highlight
progression
pipelines
their
diseases.
Overall,
our
paper
provides
comprehensive
reference
support
future
development
medicine.
Compared
with
traditional
therapies,
targeted
therapy
has
merits
in
selectivity,
efficacy,
and
tolerability.
Small
molecule
inhibitors
are
one
of
the
primary
therapies
for
cancer.
Due
to
their
advantages
a
wide
range
targets,
convenient
medication,
ability
penetrate
into
central
nervous
system,
many
efforts
have
been
devoted
developing
more
small
inhibitors.
To
date,
88
approved
by
United
States
Food
Drug
Administration
treat
cancers.
Despite
remarkable
progress,
cancer
treatment
still
face
obstacles,
such
as
low
response
rate,
short
duration
response,
toxicity,
biomarkers,
resistance.
better
promote
development
targeting
cancers,
we
comprehensively
reviewed
involved
all
agents
pivotal
drug
candidates
clinical
trials
arranged
signaling
pathways
classification
We
discussed
lessons
learned
from
these
agents,
proper
strategies
overcome
resistance
arising
different
mechanisms,
combination
concerned
Through
our
review,
hoped
provide
insights
perspectives
research
treatment.
Nature,
Год журнала:
2024,
Номер
627(8002), С. 204 - 211
Опубликована: Фев. 21, 2024
Abstract
Targeted
protein
degradation
is
a
pharmacological
modality
that
based
on
the
induced
proximity
of
an
E3
ubiquitin
ligase
and
target
to
promote
ubiquitination
proteasomal
degradation.
This
has
been
achieved
either
via
proteolysis-targeting
chimeras
(PROTACs)—bifunctional
compounds
composed
two
separate
moieties
individually
bind
ligase,
or
molecular
glues
monovalently
1–4
.
Here,
using
orthogonal
genetic
screening,
biophysical
characterization
structural
reconstitution,
we
investigate
mechanism
action
bifunctional
degraders
BRD2
BRD4,
termed
intramolecular
bivalent
(IBGs),
find
instead
connecting
in
trans
as
PROTACs
do,
they
simultaneously
engage
connect
adjacent
domains
cis
conformational
change
‘glues’
BRD4
ligases
DCAF11
DCAF16,
leveraging
intrinsic
target–ligase
affinities
do
not
translate
absence
compound.
Structural
insights
into
ternary
BRD4–IBG1–DCAF16
complex
guided
rational
design
improved
low
picomolar
potency.
We
thus
introduce
new
targeted
degradation,
which
works
by
bridging
enhance
surface
complementarity
with
for
productive
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Июль 13, 2023
Abstract
Targeted
protein
degradation
via
“hijacking”
of
the
ubiquitin-proteasome
system
using
proteolysis
targeting
chimeras
(PROTACs)
has
evolved
into
a
novel
therapeutic
modality.
The
design
PROTACs
is
challenging;
multiple
steps
involved
in
PROTAC-induced
make
it
difficult
to
establish
coherent
structure-activity
relationships.
Herein,
we
characterize
PROTAC-mediated
ternary
complex
formation
and
by
employing
von
Hippel–Lindau
(VHL)
recruiting
for
two
different
target
proteins,
SMARCA2
BRD4.
Ternary-complex
attributes
activity
parameters
are
evaluated
varying
components
PROTAC’s
architecture.
Ternary
binding
affinity
cooperativity
correlates
well
with
potency
initial
rates
degradation.
Additionally,
develop
ternary-complex
structure
modeling
workflow
calculate
total
buried
surface
area
at
interface,
which
agreement
measured
affinity.
Our
findings
predictive
framework
guide
potent
degraders.
Science,
Год журнала:
2024,
Номер
385(6704), С. 91 - 99
Опубликована: Июль 4, 2024
Sickle
cell
disease
(SCD)
is
a
prevalent,
life-threatening
condition
attributable
to
heritable
mutation
in
β-hemoglobin.
Therapeutic
induction
of
fetal
hemoglobin
(HbF)
can
ameliorate
complications
and
has
been
intently
pursued.
However,
safe
effective
small-molecule
inducers
HbF
remain
elusive.
We
report
the
discovery
dWIZ-1
dWIZ-2,
molecular
glue
degraders
WIZ
transcription
factor
that
robustly
induce
erythroblasts.
Phenotypic
screening
cereblon
(CRBN)-biased
chemical
library
revealed
as
previously
unknown
repressor
HbF.
degradation
mediated
by
recruitment
WIZ(ZF7)
CRBN
dWIZ-1,
resolved
crystallography
ternary
complex.
Pharmacological
was
well
tolerated
induced
humanized
mice
cynomolgus
monkeys.
These
findings
establish
globally
accessible
therapeutic
strategy
for
SCD.
Abstract
UM171
is
a
potent
agonist
of
ex
vivo
human
haematopoietic
stem
cell
self-renewal
1
.
By
co-opting
KBTBD4,
substrate
receptor
the
CUL3–RING
E3
ubiquitin
ligase
(CRL3)
complex,
promotes
degradation
LSD1–CoREST
corepressor
thereby
limiting
attrition
2,3
However,
direct
target
and
mechanism
action
remain
unclear.
Here
we
show
that
acts
as
molecular
glue
to
induce
high-affinity
interactions
between
KBTBD4
HDAC1/2
promote
degradation.
Through
proteomics
chemical
inhibitor
studies,
identify
principal
HDAC1/2.
Cryo-electron
microscopy
analysis
dimeric
bound
LSD1–HDAC1–CoREST
complex
identifies
an
asymmetric
assembly
in
which
single
molecule
enables
pair
KELCH-repeat
propeller
domains
recruit
HDAC1
catalytic
domain.
One
partially
masks
rim
active
site,
exploited
by
extend
E3–neosubstrate
interface.
The
other
cooperatively
strengthens
binding
through
distinct
overall
CoREST–HDAC1/2–KBTBD4
interaction
further
buttressed
endogenous
cofactor
inositol
hexakisphosphate,
second
glue.
functional
relevance
quaternary
surfaces
demonstrated
base
editor
scanning
delineating
its
action,
reveal
how
cooperativity
offered
CRL3
can
be
leveraged
small
degrader.
Nature Communications,
Год журнала:
2022,
Номер
13(1)
Опубликована: Окт. 6, 2022
Targeted
protein
degradation
(TPD)
is
a
promising
approach
in
drug
discovery
for
degrading
proteins
implicated
diseases.
A
key
step
this
process
the
formation
of
ternary
complex
where
heterobifunctional
molecule
induces
proximity
an
E3
ligase
to
interest
(POI),
thus
facilitating
ubiquitin
transfer
POI.
In
work,
we
characterize
3
steps
TPD
process.
(1)
We
simulate
SMARCA2
bromodomain
and
VHL
by
combining
hydrogen-deuterium
exchange
mass
spectrometry
with
weighted
ensemble
molecular
dynamics
(MD).
(2)
conformational
heterogeneity
using
Hamiltonian
replica
simulations
small-angle
X-ray
scattering.
(3)
assess
ubiquitination
POI
context
full
Cullin-RING
Ligase,
confirming
experimental
ubiquitinomics
results.
Differences
efficiency
can
be
explained
lysine
residues
on
relative
ubiquitin.
Molecules,
Год журнала:
2023,
Номер
28(10), С. 4014 - 4014
Опубликована: Май 10, 2023
A
potential
therapeutic
strategy
to
treat
conditions
brought
on
by
the
aberrant
production
of
a
disease-causing
protein
is
emerging
for
targeted
breakdown
using
PROTACs
technology.
Few
medications
now
in
use
are
tiny,
component-based
and
utilize
occupancy-driven
pharmacology
(MOA),
which
inhibits
function
short
period
time
temporarily
alter
it.
By
utilizing
an
event-driven
MOA,
proteolysis-targeting
chimeras
(PROTACs)
technology
introduces
revolutionary
tactic.
Small-molecule-based
heterobifunctional
hijack
ubiquitin–proteasome
system
trigger
degradation
target
protein.
The
main
challenge
PROTAC’s
development
facing
find
potent,
tissue-
cell-specific
PROTAC
compounds
with
favorable
drug-likeness
standard
safety
measures.
ways
increase
efficacy
selectivity
focus
this
review.
In
review,
we
have
highlighted
most
important
discoveries
related
proteins
PROTACs,
new
approaches
boost
proteolysis’
effectiveness
development,
promising
future
directions
medicine.