European Journal of Medicinal Chemistry,
Journal Year:
2024,
Volume and Issue:
268, P. 116202 - 116202
Published: Feb. 6, 2024
To
date,
Proteolysis
Targeting
Chimera
(PROTAC)
technology
has
been
successfully
applied
to
mediate
proteasomal-induced
degradation
of
several
pharmaceutical
targets
mainly
related
oncology,
immune
disorders,
and
neurodegenerative
diseases.
On
the
other
hand,
its
exploitation
in
field
antiviral
drug
discovery
is
still
infancy.
Recently,
we
described
two
indomethacin
(INM)-based
PROTACs
displaying
broad-spectrum
activity
against
coronaviruses.
Here,
report
design,
synthesis,
characterization
a
novel
series
INM-based
that
recruit
either
Von-Hippel
Lindau
(VHL)
or
cereblon
(CRBN)
E3
ligases.
The
panel
was
also
enlarged
by
varying
linker
moiety.
resulted
very
susceptible
this
modification,
particularly
for
hijacking
VHL
as
ligase,
with
one
piperazine-based
compound
(PROTAC
6)
showing
potent
anti-SARS-CoV-2
infected
human
lung
cells.
Interestingly,
assays
both
uninfected
virus-infected
cells
most
promising
emerged
so
far
(PROTACs
5
demonstrated
INM-PROTACs
do
not
degrade
PGES-2
protein,
initially
hypothesized,
but
induce
concentration-dependent
SARS-CoV-2
main
protease
(Mpro)
Mpro-transfected
SARS-CoV-2-infected
Importantly,
thanks
target
degradation,
exhibited
considerable
enhancement
respect
indomethacin,
EC50
values
low-micromolar/nanomolar
range.
Finally,
kinetic
solubility
well
metabolic
chemical
stability
were
measured
6.
Altogether,
identification
first
class
Mpro
degraders
demonstrating
represents
significant
advance
development
effective,
anti-coronavirus
strategies.
Molecular Cancer,
Journal Year:
2024,
Volume and Issue:
23(1)
Published: May 21, 2024
Abstract
Proteolysis-targeting
chimeras
(PROTACs)
technology
has
garnered
significant
attention
over
the
last
10
years,
representing
a
burgeoning
therapeutic
approach
with
potential
to
address
pathogenic
proteins
that
have
historically
posed
challenges
for
traditional
small-molecule
inhibitors.
PROTACs
exploit
endogenous
E3
ubiquitin
ligases
facilitate
degradation
of
interest
(POIs)
through
ubiquitin–proteasome
system
(UPS)
in
cyclic
catalytic
manner.
Despite
recent
endeavors
advance
utilization
clinical
settings,
majority
fail
progress
beyond
preclinical
phase
drug
development.
There
are
multiple
factors
impeding
market
entry
PROTACs,
insufficiently
precise
favorable
POIs
standing
out
as
one
most
formidable
obstacles.
Recently,
there
been
exploration
new-generation
advanced
including
PROTAC
prodrugs,
biomacromolecule-PROTAC
conjugates,
and
nano-PROTACs,
improve
vivo
efficacy
PROTACs.
These
improved
possess
capability
mitigate
undesirable
physicochemical
characteristics
inherent
thereby
enhancing
their
targetability
reducing
off-target
side
effects.
The
will
mark
pivotal
turning
point
realm
targeted
protein
degradation.
In
this
comprehensive
review,
we
meticulously
summarized
state-of-the-art
advancements
achieved
by
these
cutting-edge
elucidated
underlying
design
principles,
deliberated
upon
prevailing
encountered,
provided
an
insightful
outlook
on
future
prospects
within
field.
Science Bulletin,
Journal Year:
2024,
Volume and Issue:
69(11), P. 1776 - 1797
Published: March 29, 2024
Undruggable
targets
typically
refer
to
a
class
of
therapeutic
that
are
difficult
target
through
conventional
methods
or
have
not
yet
been
targeted,
but
great
clinical
significance.
According
statistics,
over
80%
disease-related
pathogenic
proteins
cannot
be
targeted
by
current
treatment
methods.
In
recent
years,
with
the
advancement
basic
research
and
new
technologies,
development
various
technologies
mechanisms
has
brought
perspectives
overcome
challenging
drug
targets.
Among
them,
protein
degradation
technology
is
breakthrough
strategy
for
This
can
specifically
identify
directly
degrade
utilizing
inherent
pathways
within
cells.
form
includes
types
such
as
proteolysis
targeting
chimera
(PROTAC),
molecular
glue,
lysosome-targeting
Chimaera
(LYTAC),
autophagosome-tethering
compound
(ATTEC),
autophagy-targeting
(AUTAC),
(AUTOTAC),
degrader-antibody
conjugate
(DAC).
article
systematically
summarizes
application
in
degraders
Finally,
looks
forward
future
direction
prospects
technology.
Translational Neurodegeneration,
Journal Year:
2025,
Volume and Issue:
14(1)
Published: Jan. 27, 2025
Abstract
Alzheimer’s
disease
(AD)
is
the
most
common
type
of
dementia.
Monoclonal
antibodies
(MABs)
serve
as
a
promising
therapeutic
approach
for
AD
by
selectively
targeting
key
pathogenic
factors,
such
amyloid-β
(Aβ)
peptide,
tau
protein,
and
neuroinflammation.
Specifically,
based
on
their
efficacy
in
removing
Aβ
plaques
from
brains
patients
with
AD,
U.S.
Food
Drug
Administration
has
approved
three
anti-amyloid
MABs,
aducanumab
(Aduhelm®),
lecanemab
(Leqembi®),
donanemab
(Kisunla™).
Notably,
received
traditional
approval
after
demonstrating
clinical
benefit,
supporting
cascade
hypothesis.
These
MABs
are
categorized
affinity
to
diverse
conformational
features
Aβ,
including
monomer,
fibril,
protofibril,
plaque
forms
well
pyroglutamate
Aβ.
First-generation
non-toxic
monomeric
solanezumab,
bapineuzumab,
crenezumab,
failed
demonstrate
benefit
trials.
In
contrast,
second-generation
aducanumab,
lecanemab,
donanemab,
gantenerumab
directed
against
species
aggregates
have
shown
that
reducing
deposition
can
be
an
effective
strategy
slow
cognitive
impairment
AD.
this
review,
we
provide
comprehensive
overview
current
status,
mechanisms,
outcomes,
limitations
treatment
Moreover,
discuss
perspectives
future
directions
Molecules,
Journal Year:
2022,
Volume and Issue:
27(19), P. 6515 - 6515
Published: Oct. 2, 2022
Target
protein
degradation
has
emerged
as
a
promising
strategy
for
the
discovery
of
novel
therapeutics
during
last
decade.
Proteolysis-targeting
chimera
(PROTAC)
harnesses
cellular
ubiquitin-dependent
proteolysis
system
efficient
interest.
PROTAC
consists
target
ligand
and
an
E3
ligase
so
that
it
enables
owing
to
induced
proximity
with
ubiquitin
ligases.
Although
great
number
PROTACs
been
developed
far
using
previously
reported
ligands
proteins
their
degradation,
have
mostly
limited
either
CRBN
or
VHL
ligands.
Those
showed
limitation
due
cell
type
specific
expression
ligases
recently
resistance
toward
To
overcome
these
hurdles,
various
spotlighted
improve
current
technology.
This
review
focuses
on
currently
application
in
development
PROTACs.
Cancers,
Journal Year:
2021,
Volume and Issue:
13(12), P. 3079 - 3079
Published: June 20, 2021
The
ubiquitin-proteasome
system
(UPS)
is
a
critical
regulator
of
cellular
protein
levels
and
activity.
It
is,
therefore,
not
surprising
that
its
dysregulation
implicated
in
numerous
human
diseases,
including
many
types
cancer.
Moreover,
since
cancer
cells
exhibit
increased
rates
turnover,
their
heightened
dependence
on
the
UPS
makes
it
an
attractive
target
for
inhibition
via
targeted
therapeutics.
Indeed,
clinical
application
proteasome
inhibitors
treatment
multiple
myeloma
has
been
very
successful,
stimulating
development
small-molecule
targeting
other
components.
On
hand,
while
discovery
potent
selective
chemical
compounds
can
be
both
challenging
time
consuming,
area
degradation
through
utilization
machinery
seen
promising
developments
recent
years.
repertoire
proteolysis-targeting
chimeras
(PROTACs),
which
employ
E3
ligases
cancer-related
proteins
proteasome,
continues
to
grow.
In
this
review,
we
will
provide
thorough
overview
highlight
advancements
strategies
Journal of Medicinal Chemistry,
Journal Year:
2022,
Volume and Issue:
65(6), P. 4709 - 4726
Published: March 7, 2022
Drug
resistance
caused
by
epidermal
growth
factor
receptor
(EGFR)
mutation
has
largely
limited
the
clinical
use
of
EGFR
tyrosine
kinase
inhibitors
(EGFR-TKIs)
for
treatment
non-small-cell
lung
cancer
(NSCLC).
Herein,
to
overcome
intractable
problem
drug
resistance,
proteolysis
targeting
chimeras
(PROTACs)
mutants
were
developed
optimizing
covalent
ligands.
Covalent
or
reversible
pyrimidine-
purine-containing
PROTACs
designed,
synthesized,
and
evaluated.
As
a
consequence,
PROTAC
CP17,
with
novel
ligand,
was
discovered
as
highly
potent
degrader
against
EGFRL858R/T790M
EGFRdel19,
reaching
lowest
DC50
values
among
all
reported
EGFR-targeting
PROTACs.
Furthermore,
CP17
exhibited
excellent
cellular
activity
H1975
HCC827
cell
lines
high
selectivity.
Mechanism
investigation
indicated
that
lysosome
involved
in
degradation
process.
Importantly,
binding
strategy
proven
be
an
effective
approach
design
EGFRL858R/T790M,
which
laid
practical
foundation
further
development
International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(18), P. 10328 - 10328
Published: Sept. 7, 2022
Proteolysis-targeting
chimera
(PROTAC)
is
a
heterobifunctional
molecule.
Typically,
PROTAC
consists
of
two
terminals
which
are
the
ligand
protein
interest
(POI)
and
specific
E3
ubiquitin
ligase,
respectively,
via
suitable
linker.
degradation
target
performed
through
ubiquitin-proteasome
system
(UPS).
The
general
process
that
binds
to
ligase
form
ternary
complex
label
with
ubiquitination.
ubiquitinated
recognized
degraded
by
proteasome
in
cell.
At
present,
PROTAC,
as
new
type
drug,
has
been
developed
degrade
variety
cancer
proteins
other
disease
proteins,
shown
good
curative
effects
on
diseases.
For
example,
PROTACs
targeting
AR,
BR,
BTK,
Tau,
IRAK4,
have
unprecedented
clinical
efficacy
cancers,
neurodegenerative
diseases,
inflammations,
fields.
Recently,
entered
phase
rapid
development,
opening
field
for
biomedical
research
development.
This
paper
reviews
various
fields
targeted
recent
years
summarizes
prospects
hot
targets
indications
PROTAC.
Chemical Society Reviews,
Journal Year:
2022,
Volume and Issue:
51(14), P. 6210 - 6221
Published: Jan. 1, 2022
Targeted
protein
degradation
is
a
dynamic
process
regulated
not
only
by
the
kinetics
and
mechanisms
of
degrader
compound,
but
also
native
homeostasis
cellular
regulation
target
protein.
Image
created
with
BioRender.com.
Theranostics,
Journal Year:
2023,
Volume and Issue:
13(2), P. 704 - 723
Published: Jan. 1, 2023
The
Kelch-like
ECH-associated
protein
1/nuclear
factor
erythroid-derived
2-like
2
(KEAP1/NRF2)
pathway
is
well
recognized
as
a
key
regulator
of
redox
homeostasis,
protecting
cells
from
oxidative
stress
and
xenobiotics
under
physiological
circumstances.Cancer
often
hijack
this
during
initiation
progression,
with
aberrant
KEAP1-NRF2
activity
predominantly
observed
in
non-small
cell
lung
cancer
(NSCLC),
suggesting
that
cell/tissue-of-origin
likely
to
influence
the
genetic
selection
malignant
transformation.Hyperactivation
NRF2
confers
multi-faceted
role,
recently,
increasing
evidence
shows
close
interplay
between
metabolic
reprogramming
tumor
immunity
remodelling
contributes
its
aggressiveness,
treatment
resistance
(radio-/chemo-/immune-therapy)
susceptibility
metastases.Here,
we
discuss
detail
special
immune
fitness
enabled
by
aberration
NSCLC.Furthermore,
summarize
similarities
differences
dysregulated
two
major
histo-subtypes
NSCLC,
provide
mechanistic
insights
on
poor
response
immunotherapy
despite
their
high
immunogenicity,
outline
evolving
strategies
treat
recalcitrant
subset.Finally,
integrate
bioinformatic
analysis
publicly
available
datasets
illustrate
new
partners/effectors
NRF2-addicted
cells,
which
may
into
context-directed
treatment.