Science Advances,
Journal Year:
2024,
Volume and Issue:
10(38)
Published: Sept. 18, 2024
Lin28,
a
highly
conserved
carcinogenic
protein,
plays
an
important
role
in
the
generation
of
cancer
stem
cells,
contributing
to
unfavorable
prognosis
patients.
This
RNA
binding
protein
specifically
binds
pri/pre-microRNA
(miRNA)
lethal-7
(let-7),
impeding
its
miRNA
maturation.
The
reduced
expression
tumor
suppressor
let-7
fosters
development
and
progression-related
traits
such
as
proliferation,
invasion,
metastasis,
drug
resistance.
We
report
series
miRNA-based
Lin28A-miRNA
proteolysis-targeting
chimeras
(Lin28A-miRNA-PROTACs)
designed
efficiently
degrade
Lin28A
through
ubiquitin-proteasome–dependent
mechanism,
resulting
up-regulation
mature
family.
augmented
levels
matured
miRNAs
further
exert
inhibitory
effects
on
cell
proliferation
migration,
increase
sensitivity
chemotherapy.
In
mouse
ectopic
model,
Lin28A-miRNA-PROTAC
demonstrates
substantial
efficacy
inhibiting
growth.
When
combined
with
tamoxifen,
tumors
exhibit
gradual
regression.
study
displays
effective
PROTACs
inhibit
growth,
providing
promising
therapeutic
avenue
for
treatment
therapy.
European Journal of Pharmaceutical Sciences,
Journal Year:
2024,
Volume and Issue:
198, P. 106793 - 106793
Published: May 11, 2024
The
revolutionary
Proteolysis
Targeting
Chimera
(PROTACs)
have
the
exciting
potential
to
reshape
pharmaceutical
industry
landscape
by
leveraging
ubiquitin-proteasome
system
for
targeted
protein
degradation.
Breast
cancer,
most
prevalent
cancer
in
women,
could
be
treated
using
PROTAC
therapy.
Although
substantial
work
has
been
conducted,
there
isn't
yet
a
comprehensive
overview
or
progress
update
on
therapy
breast
cancer.
Hence,
this
article,
we've
compiled
recent
research
focusing
different
target
proteins,
such
as
estrogen
receptor
(ER),
BET,
CDK,
HER2,
PARP,
EZH2,
etc.
This
resource
aims
serve
guide
future
PROTAC-based
treatment
design.
Molecular Therapy — Nucleic Acids,
Journal Year:
2024,
Volume and Issue:
35(3), P. 102292 - 102292
Published: July 31, 2024
Patients
suffering
from
BRAF
mutant
melanoma
have
tumor
recurrence
within
merely
7
months
of
treatment
with
a
potent
inhibitor
(BRAFi)
like
vemurafenib.
It
has
been
proven
that
diverse
molecular
pathways
driving
BRAFi
resistance
converge
to
activation
c-Myc
in
melanoma.
Therefore,
we
identified
novel
combinatorial
therapeutic
strategy
by
targeting
loss
phosphatase
and
tensin
homolog
deleted
on
chromosome
10
(PTEN)
suppressor
gene
upregulated
BRD4
oncoprotein
as
Myc-dependent
vulnerabilities
drug-resistant
Being
promising
targets,
decided
concomitantly
deliver
PTEN
plasmid
targeted
PROteolysis-TArgeting
Chimera
(ARV)
drug
the
"undruggable"
BRAFi-resistant
Since
ARV
are
distinct
their
physicochemical
properties,
fabricated
PTEN-plasmid
loaded
lipid
nanoparticles
(PL-NANO)
ARV-825-loaded
nanoliposomes
(AL-NANO)
yield
mean
particle
size
less
than
100
nm
greater
99%
encapsulation
efficiency
for
each
payload.
Combination
PL-NANO
AL-NANO
displayed
synergistic
growth
inhibition
substantial
apoptosis
vitro
two-dimensional
three-dimensional
models.
Importantly,
simultaneous
delivery
achieved
significant
upregulation
expression
levels
degradation
protein
ultimately
downregulate
cells.
Altogether,
nanocarriers
delivering
this
lethal
cocktail
stands
one-of-a-kind
therapy
target
undruggable
oncogene
melanoma.Graphical
abstract
Science Advances,
Journal Year:
2024,
Volume and Issue:
10(38)
Published: Sept. 18, 2024
Lin28,
a
highly
conserved
carcinogenic
protein,
plays
an
important
role
in
the
generation
of
cancer
stem
cells,
contributing
to
unfavorable
prognosis
patients.
This
RNA
binding
protein
specifically
binds
pri/pre-microRNA
(miRNA)
lethal-7
(let-7),
impeding
its
miRNA
maturation.
The
reduced
expression
tumor
suppressor
let-7
fosters
development
and
progression-related
traits
such
as
proliferation,
invasion,
metastasis,
drug
resistance.
We
report
series
miRNA-based
Lin28A-miRNA
proteolysis-targeting
chimeras
(Lin28A-miRNA-PROTACs)
designed
efficiently
degrade
Lin28A
through
ubiquitin-proteasome–dependent
mechanism,
resulting
up-regulation
mature
family.
augmented
levels
matured
miRNAs
further
exert
inhibitory
effects
on
cell
proliferation
migration,
increase
sensitivity
chemotherapy.
In
mouse
ectopic
model,
Lin28A-miRNA-PROTAC
demonstrates
substantial
efficacy
inhibiting
growth.
When
combined
with
tamoxifen,
tumors
exhibit
gradual
regression.
study
displays
effective
PROTACs
inhibit
growth,
providing
promising
therapeutic
avenue
for
treatment
therapy.