Journal of the American Chemical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 26, 2024
Triple-negative
breast
cancer
(TNBC)
poses
significant
treatment
challenges
due
to
its
high
metastasis,
heterogeneity,
and
poor
biomarker
expression.
The
N-terminus
of
an
octapeptide
NAPVSIPQ
(NAP)
was
covalently
coupled
a
carboxylic
acid
derivative
Ru(2,2′-bipy)32+
(Rubpy)
synthesize
N-stapled
short
peptide-Rubpy
conjugate
(Ru-NAP).
This
photosensitizer
(PS)
utilized
treat
TNBC
through
microtubule
(MT)
targeted
chemotherapy
photodynamic
therapy
(PDT).
Ru-NAP
formed
more
elaborate
molecular
aggregates
with
fibrillar
morphology
as
compared
NAP.
A
much
higher
binding
affinity
over
NAP
toward
β-tubulin
(KRu-NAP:
(6.8
±
0.55)
×
106
M–1;
KNAP:
(8.2
1.1)
104
M–1)
observed
stronger
electrostatic
interactions
between
the
MT
average
linear
charge
density
∼85
e/nm
cationic
Rubpy
part
Ru-NAP.
also
supported
by
docking,
simulation,
appropriate
imaging
studies.
promoted
serum
stability,
specific
E-site
βIII-tubulin
followed
disruption
network,
effective
singlet
oxygen
generation
in
cells
(MDA-MB-231),
causing
cell
cycle
arrest
G2/M
phase
triggering
apoptosis.
Remarkably,
MDA-MB-231
were
sensitive
noncancerous
human
embryonic
kidney
(HEK293
cells)
when
exposed
light
(LightIC50Ru-NAP[HEK293]:
17.2
2.5
μM,
LightIC50Ru-NAP[MDA-MB-231]:
32.5
7.8
nM,
DarkIC50Ru-NAP[HEK293]:
>
80
DarkIC50Ru-NAP[MDA-MB-231]:
2.9
0.5
μM).
effectively
inhibited
tumor
growth
xenograft
models
nude
mice.
Our
findings
provide
strong
evidence
that
has
potential
therapeutic
role
treatment.
Chemical Biology & Drug Design,
Journal Year:
2025,
Volume and Issue:
105(1)
Published: Jan. 1, 2025
ABSTRACT
Drug
targeting
strategies,
such
as
peptide–drug
conjugates
(PDCs),
have
arisen
to
combat
the
issue
of
off‐target
toxicity
that
is
commonly
associated
with
chemotherapeutic
small
molecule
drugs.
Here
we
investigated
ability
PDCs
comprising
a
human
protein‐derived
cell‐penetrating
peptide—platelet
factor
4‐derived
internalization
peptide
(PDIP)—as
strategy
improve
selectivity
camptothecin
(CPT),
topoisomerase
I
inhibitor
suffers
from
toxicity.
The
intranuclear
target
CPT
allowed
exploration
PDC
design
features
required
for
optimal
potency.
A
suite
various
structural
characteristics,
including
alternative
conjugation
strategies
(such
azide–alkyne
cycloaddition
and
disulfide
conjugation)
linker
types
(non‐cleavable
or
cleavable),
were
synthesized
their
anticancer
activity.
Membrane
permeability
cytotoxicity
studies
revealed
intact
PDIP‐CPT
can
cross
membranes,
disulfide‐
protease‐cleavable
linkers
liberated
free
killed
melanoma
cells
nanomolar
However,
PDIP
carrier
compared
noncancerous
epidermal
was
not
maintained
PDCs.
This
study
emphasizes
distinct
role
peptide,
linker,
drug
activity
highlights
need
carefully
match
components
when
assembling
targeted
therapies.
Signal Transduction and Targeted Therapy,
Journal Year:
2025,
Volume and Issue:
10(1)
Published: March 5, 2025
The
successful
approval
of
peptide-based
drugs
can
be
attributed
to
a
collaborative
effort
across
multiple
disciplines.
integration
novel
drug
design
and
synthesis
techniques,
display
library
technology,
delivery
systems,
bioengineering
advancements,
artificial
intelligence
have
significantly
expedited
the
development
groundbreaking
drugs,
effectively
addressing
obstacles
associated
with
their
character,
such
as
rapid
clearance
degradation,
necessitating
subcutaneous
injection
leading
increasing
patient
discomfort,
ultimately
advancing
translational
research
efforts.
Peptides
are
presently
employed
in
management
diagnosis
diverse
array
medical
conditions,
diabetes
mellitus,
weight
loss,
oncology,
rare
diseases,
additionally
garnering
interest
facilitating
targeted
platforms
advancement
vaccines.
This
paper
provides
an
overview
present
market
clinical
trial
progress
therapeutics,
platforms,
It
examines
key
areas
through
literature
analysis
emphasizes
structural
modification
principles
well
recent
advancements
screening,
design,
technologies.
accelerated
including
peptide-drug
complexes,
new
vaccines,
innovative
diagnostic
reagents,
has
potential
promote
era
precise
customization
disease
therapeutic
schedule.
Frontiers in Immunology,
Journal Year:
2025,
Volume and Issue:
16
Published: Jan. 22, 2025
Cell
penetrating
peptides
(CPPs)
are
usually
positive
charged
and
have
good
cell
membrane
permeability.
Meanwhile,
CPPs
facile
to
synthesize,
can
be
functionalized
satisfy
different
demands,
such
as
cyclization,
incorporating
unnatural
amino
acids,
lipid
conjugation.
These
properties
made
them
efficient
drug-delivery
tools
deliver
therapeutic
molecules
cells
tissues
in
a
nontoxic
manner,
including
small
molecules,
DNA,
siRNA,
proteins
other
various
nanoparticles.
However,
the
poor
serum
stability
low
tumor
targeting
ability
also
hindered
their
broad
application.
Besides,
inappropriate
chemical
modification
lead
disruption
nonspecific
toxicity.
In
this
paper,
we
first
reviewed
recent
advances
CPP
applications
for
cancer
therapy
via
covalent
or
non-covalent
manners.
We
carefully
analyzed
advantages
disadvantages
of
each
modifications
drug
delivery.
Then,
concluded
progress
clinical
trials
diseases.
Finally,
discussed
challenges
opportunities
met
translate
into
applications.
This
review
presented
new
insight
delivery,
which
could
provide
advice
on
design
clinically
effective
systemic
delivery
systems
using
CPPs.
Engineering Reports,
Journal Year:
2025,
Volume and Issue:
7(2)
Published: Feb. 1, 2025
ABSTRACT
The
field
of
protein
engineering
has
witnessed
transformative
advancements,
with
computational
tools
and
databases
driving
novel
innovations
in
de
novo
design.
This
review
consolidates
critiques
a
comprehensive
range
modern
resources,
offering
unique
focus
on
their
applications
across
diverse
domains,
including
stability
prediction,
posttranslational
modification
analysis,
mutation
effect
evaluation.
Key
contributions
include
detailed
examination
integrating
machine
learning
artificial
intelligence
to
enhance
predictive
accuracy
streamline
workflows.
By
highlighting
underexplored
methodologies,
such
as
advanced
protein–ligand
interaction
predictors
neural
network–based
assessment
models,
this
study
establishes
itself
reference
for
researchers
aiming
develop
tailored
proteins
therapeutic,
industrial,
biomedical
applications.
Chinese Medical Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 4, 2025
Abstract
Peptide-drug
conjugates
(PDCs)
have
emerged
as
a
promising
strategy
in
cancer
therapy,
offering
improved
therapeutic
efficacy
and
reduced
toxicity.
Compared
to
antibody-drug
(ADCs)
small
molecule-drug
(SMDCs),
PDCs
possess
distinct
advantages,
such
lower
immunogenicity,
tumor
penetration,
simpler
synthesis.
This
review
discusses
the
latest
advancements
PDC
design,
including
novel
peptide
targeting
mechanisms,
linker
selection,
formulation
improvements
for
increased
stability.
Additionally,
it
explores
expanding
clinical
applications
of
examines
their
limitations.
The
aim
this
is
provide
comprehensive
overview
current
progress
outline
future
directions
role
treatment.