Applied Organometallic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 18, 2024
ABSTRACT
Herein,
two
deep
red
phosphorescent
responsive
emissive
cyclometalated
iridium
(III)
complexes
with
CAIX
inhibition
moiety
was
designed
and
synthesized;
they
can
penetrate
into
living
cells
quickly
mainly
located
in
the
lysosome.
They
showed
a
strong
binding
affinity
towards
vitro
effectively
reduced
cellular
expression
of
CAIX.
Moreover,
tethered
CAIX‐inhibition
benzene
sulfonamide
decrease
inherent
cytotoxicity
Ir(III)
complex
normal
improve
killing
selectivity
cancer
dark;
Ir3
Ir4
exhibit
approximately
five
to
eight
times
higher
than
that
cisplatin;
satisfied
photodynamic
therapy
effect
under
irradiation
425
nm,
ultimately
resulting
apoptosis
cell,
which
is
accompanied
weakening
extracellular
acidification,
increased
expression,
significant
loss
mitochondrial
membrane
potential,
elevated
level
reactive
oxygen.
our
work
may
demonstrate
combination
metal
photosensitizer
provide
promising
strategy
for
constructing
novel
theranostic
platform.
Photochem,
Journal Year:
2024,
Volume and Issue:
4(4), P. 434 - 461
Published: Oct. 1, 2024
Photodynamic
therapy
(PDT)
is
a
medical
treatment
that
utilizes
photosensitizing
agents,
along
with
light,
to
produce
reactive
oxygen
species
can
kill
nearby
cells.
When
the
photosensitizer
exposed
specific
wavelength
of
it
becomes
activated
and
generates
destroy
cancer
cells,
bacteria,
other
pathogenic
micro-organisms.
PDT
commonly
used
in
dermatology
for
treating
actinic
keratosis,
basal
cell
carcinoma,
skin
conditions.
It
also
being
explored
applications
oncology,
such
as
esophageal
lung
cancers,
well
ophthalmology
age-related
macular
degeneration.
In
this
study,
we
provide
comprehensive
review
PDT,
covering
its
fundamental
principles
mechanisms,
critical
components
function.
We
examine
key
aspects
including
current
clinical
potential
future
developments.
Additionally,
discuss
advantages
disadvantages
addressing
various
challenges
associated
implementation
optimization.
This
aims
offer
thorough
understanding
highlighting
transformative
treatments
while
acknowledging
areas
requiring
further
research
development.
Chemical Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
NIR
activatable,
self-degradable
iridium(
iii
)–dithiocarbamate–cyanine
complexes
were
synthesized.
They
act
as
type
I
and
II
PDT
agent
at
ultra-low-power
irradiation
high
laser
power,
they
exhibited
photoactivated
chemotherapy
(PACT).
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 8, 2025
Abstract
Although
photodynamic
therapy
(PDT)
holds
great
promise
for
applications
in
cancer
treatment,
it
has
limited
effectiveness
against
deep
hypoxic
tumors.
Moreover,
the
lack
of
visualization
guidance
precision
theranostics
poses
additional
challenges,
hindering
its
broader
clinical
adoption.
By
combining
NIR‐IIc
(1800
nm)
imaging
with
internally
and
externally
activatable
dual‐modality
PDT
hypoxia‐triggered
chemotherapy,
this
study
proposes
a
conceptual
framework
to
overcome
these
limitations.
This
approach
involves
use
photoswitchable
lanthanide‐doped
nanoparticles
featuring
Tm
3+
‐activated
upconversion/downshifting
emissions
coupled
carboxyl‐terminated
Ir(III)
complex‐based
Type
I/II
photosensitizer
form
nanophotosensitizer.
The
findings
demonstrate
that
system
enabled
upon
808/980
nm
excitation
while
selectively
activating
external
under
980
irradiation,
thereby
ensuring
accurate
minimizing
phototoxicity
risk.
complex
conjugates
luminol
self‐illuminating
photosensitizer,
which
can
respond
elevated
H
2
O
levels
tumor
microenvironment,
effectively
catalyzing
chemiluminescence‐assisted
PDT.
aggravates
hypoxia,
turn
activates
hypoxia‐activatable
prodrugs
like
tirapazamine,
resulting
synergistic
antitumor
effect.
With
imaging‐guided
PDT,
introduces
groundbreaking
unites
significantly
advancing
precise
effective
treatment
ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(45), P. 61739 - 61750
Published: Oct. 30, 2024
Type
I
photodynamic
therapy
(PDT)
exhibits
outstanding
therapeutic
effects
in
hypoxic
environments
tumors,
but
the
design
of
type
photosensitizers
(PSs),
especially
those
with
simple
structures
dramatic
properties,
remains
a
challenge.
Herein,
we
report
strategy
for
developing
PSs
one
molecule
afterglow
luminescence.
As
proof
concept,
4,4-difluoro-4-bora-3a,4a-diaza-s-indacene
(BODIPY)
PS
(BIP)
bearing
water-soluble
poly(ethylene
glycol)
(mPEG550)
chains
is
synthesized,
and
BIP
can
self-assemble
into
nanoparticles
(BIPNs).
Interestingly,
BIPNs
exhibit
an
O2•--triggered
luminescence,
which
scarce,
BODIPY
derivatives.
demonstrate
dominant
PDT
at
ultralow
dose
under
both
normoxic
environments,
significantly
inhibit
tumor
growth
irradiation.
This
work
highlights
high-performance
luminescence
excellent
effects,
underscoring
significant
potential
versatile
clinical
theranostics.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 11, 2024
Transition
metal
complex-loaded
nanosystems
(TMCNs)
represent
a
cutting-edge
platform
for
stimuli
(light,
ultrasound)-responsive
cancer
therapies.
These
nanosystems,
incorporating
metals
such
as
manganese(II),
zinc(II),
ruthenium(II),
rhenium(I),
iridium(III),
and
platinum(IV),
significantly
enhance
the
efficacy
of
light-activated
therapies,
including
photodynamic
therapy
(PDT)
photothermal
(PTT),
well
ultrasound-activated
treatments
like
sonodynamic
(SDT).
TMCNs
based
on
iridium(III)
improve
PDT,
while
manganese(II)
demonstrate
exceptional
sonosensitizing
properties.
In
PTT,
ruthenium(II)
iridium(III)-based
efficiently
absorb
light
generate
heat.
Emerging
synergistic
approaches
that
combine
SDT,
chemotherapy,
immunotherapy
are
demonstrated
to
be
powerful
strategies
precision
treatment.
Zinc(II),
platinum(IV)-based
play
critical
role
in
optimizing
these
enhancing
tumor
targeting,
reducing
side
effects.
Furthermore,
can
amplify
by
inducing
immunogenic
cell
death,
thus
strengthening
immune
response.
advances
address
key
challenges
hypoxia
therapeutic
resistance,
opening
new
possibilities
innovative
photosensitizer-based
treatments.
This
review
highlights
latest
progress
design
applications,
demonstrating
their
potential
revolutionize
stimuli-responsive
Dalton Transactions,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 30, 2024
Recent
advancements
in
ligand
design
and
fluorophore
functionalization
enable
Ir(
iii
)
photosensitizers
to
achieve
deep-red/near-infrared
absorption,
addressing
challenges
photodynamic
therapy
for
deep-seated
tumors.