Advancements in NIR-based fluorescence imaging agents for oral oncology: A comprehensive review
Dyes and Pigments,
Journal Year:
2025,
Volume and Issue:
235, P. 112637 - 112637
Published: Jan. 8, 2025
Language: Английский
In Vivo Analysis Techniques for Antibody Drug: Recent Advances and Methodological Insights
Journal of Pharmaceutical Analysis,
Journal Year:
2025,
Volume and Issue:
unknown, P. 101314 - 101314
Published: April 1, 2025
Language: Английский
Novel Near Infrared Dyes Targeting Carbonic Anhydrase IX for Fluorescence Imaging Applications
Roberta Napolitano,
No information about this author
Alessia Adamo,
No information about this author
Luca Biondi
No information about this author
et al.
Investigative Radiology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 7, 2025
Objectives
Fluorescence
tumor-targeted
imaging
is
a
sensitive
technique
that
may
assist
surgeons
to
remove
residual
cancer
tissue
during
resection.
Carbonic
anhydrase
IX
(CAIX)
tumor-associated
cell-surface
glycoprotein,
upregulated
in
hypoxic
environments,
and
suitable
biomarker
develop
targeted
dyes
for
fluorescence-guided
surgery.
This
study
describes
design,
synthesis,
vitro
vivo
assessment
of
novel
CAIX-targeting
fluorescent
probes
based
on
the
well-known
drug
acetazolamide,
addressing
contribution
both
targeting
moiety
fluorophore
structure
efficacy.
Materials
Methods
All
heptamethine
cyanines
synthesized
described
present
work
were
characterized
terms
their
optical
properties
different
media.
The
affinity
human
serum
albumin
was
evaluated
by
UV-VIS
spectrophotometry.
CA
catalytic
site
determined
recombinant
bovine
CAII
enzyme
(bCAII),
with
fluorescent-based
assay.
Human
colon
adenocarcinoma
HT-29
cells,
highly
expressing
CAIX,
used
characterization,
including
cell
binding,
uptake
competition
assays,
flow
cytometry.
Finally,
tumor
efficacy
selected
group
assessed
Optical
Imaging
mouse
subcutaneous
from
expression
CAIX
microenvironment.
Results
First,
family
prepared
functionalizing
glucamine-bearing
cyanine
(Dye1)
modified
acetazolamide
moiety,
whose
acetyl
replaced
i)
aminooctanoic
acid
C8
,
ii)
phenylalanine,
iii)
amino-PEG2-acid
iv)
longer
linker
4a
or
2
commercially
available
benzenesulfonamides.
From
screening
this
first
compounds,
C8-AZA
due
its
highest
affinity.
Indeed,
Dye1-C8-AZA
exhibited
lowest
K
D
values
bCAII
(6.1
±
1.6
nM)
CAIX-expressing
cells
(58
9
nM),
even
lower
than
HypoxyFluor-1
(HF-1),
CAIX-targeted
dye
already
reported
literature.
Then,
other
(Dye2–Dye5,
linear
cyclic,
substituents
indolenines
conjugation
position
vector)
functionalized
fully
evaluate
combinatory
effect
vector
performance
resulting
probes.
chemical
features
influenced
properties,
solubility,
binding
albumin,
biodistribution,
probes,
while
leaving
unaffected
high
target.
When
tested
visualization
tumors,
all
showed
specific
accumulation,
often
superior
HF-1.
Conclusions
Several
test
molecular
vectors
biological
properties.
containing
displayed
higher
specificity
target,
strongly
also
labelling
dye.
among
them
especially
Dye1-C8-AZA,
efficient
accumulation.
These
results
support
further
studies
toward
clinical
testing
as
target
fluorescence
pave
way
future
applications.
Language: Английский
Enhancing Glioblastoma Resection with NIR Fluorescence Imaging: A Systematic Review
Cancers,
Journal Year:
2024,
Volume and Issue:
16(23), P. 3984 - 3984
Published: Nov. 27, 2024
Glioblastoma
(GB)
is
among
the
most
aggressive
and
difficult-to-treat
brain
tumors,
with
a
median
survival
of
only
12–15
months
despite
maximal
treatments,
including
surgery,
radiotherapy,
chemotherapy.
Extensive
surgical
resection
improves
in
glioblastoma
patients;
however,
achieving
complete
often
hindered
by
limitations
neurosurgical
guidance
technologies
for
accurate
tumor
margin
detection.
Recent
advancements
fluorescence-guided
surgery
(FGS)
imaging
techniques
have
significantly
enhanced
precision
extent
resections.
This
study
evaluates
impact
NIR
fluorescence
on
visualization,
precision,
cost-effectiveness,
patient
survival.
A
systematic
review
PubMed,
Scopus,
Google
Scholar,
Embase
was
conducted
to
identify
studies
role
surgery.
total
135
were
included,
comprising
10
reviews,
three
clinical
studies,
randomized
controlled
trials
(RCTs),
preclinical
four
case
reports,
all
focused
The
findings
indicate
that
resulting
an
18–22%
increase
gross
(GTR)
rates
studies.
provides
continuous
real-time
feedback,
minimizing
repeat
imaging,
reducing
operational
costs,
increasing
GTR.
These
improvements
contribute
better
outcomes,
extended
progression-free
survival,
improved
overall
reduced
postoperative
neurological
deficits.
underscores
potential
establish
new
standard
intraoperative
management.
Language: Английский