Science Advances,
Journal Year:
2024,
Volume and Issue:
10(34)
Published: Aug. 21, 2024
Real-time
tracking
of
intracellular
carbohydrates
remains
challenging.
While
click
chemistry
allows
bio-orthogonal
tagging
with
fluorescent
probes,
the
reaction
permanently
alters
target
molecule
and
only
a
single
snapshot.
Here,
we
demonstrate
click-free
mid-infrared
photothermal
(MIP)
imaging
azide-tagged
in
live
cells.
Leveraging
micromolar
detection
sensitivity
for
6-azido-trehalose
(TreAz)
300-nm
spatial
resolution
MIP
imaging,
trehalose
recycling
pathway
mycobacteria,
from
cytoplasmic
uptake
to
membrane
localization,
is
directly
visualized.
A
peak
shift
azide
spectrum
further
uncovers
interactions
between
TreAz
protein.
mapping
unreacted
after
reveals
heterogeneity
within
bacterium.
Broader
applications
azido
probes
visualize
initial
steps
Leloir
yeasts
newly
synthesized
glycans
mammalian
cells
are
demonstrated.
Advanced Science,
Journal Year:
2023,
Volume and Issue:
10(34)
Published: Oct. 12, 2023
Breakthroughs
in
precision
cell
surface
engineering
tools
are
supporting
the
rapid
development
of
programmable
living
assemblies
with
valuable
features
for
tackling
complex
biological
problems.
Herein,
authors
overview
most
recent
technological
advances
chemically-
and
biologically-driven
toolboxes
mammalian
surfaces
triggering
their
assembly
into
architectures.
A
particular
focus
is
given
to
technologies
enabling
biomimetic
cell-cell
social
interactions
multicellular
cell-sorting
events.
Further
advancements
modification
may
expand
currently
available
bioengineering
toolset
unlock
a
new
generation
personalized
therapeutics
clinically
relevant
biofunctionalities.
The
combination
state-of-the-art
modifications
advanced
biofabrication
envisioned
contribute
toward
generating
materials
increasing
tissue/organ-mimetic
bioactivities
therapeutic
potential.
Biotechnology Advances,
Journal Year:
2023,
Volume and Issue:
67, P. 108196 - 108196
Published: June 10, 2023
This
review
provides
a
comprehensive
overview
of
our
understanding
the
role
that
glycans
play
in
formation,
loading
and
release
extracellular
vesicles
(EVs).
The
capture
EVs
(typically
with
size
100-200
nm)
is
described,
including
approaches
based
on
glycan
recognition
glycan-based
analysis
offering
highly
sensitive
detection
EVs.
Furthermore,
detailed
information
provided
about
use
EV
processing
enzymes
as
potential
biomarkers,
therapeutic
targets
or
tools
applied
for
regenerative
medicine.
also
short
introduction
into
advanced
methods
characterization
EVs,
new
insights
biomolecular
corona
covering
bioanalytical
available
analysis.
Journal of Medicinal Chemistry,
Journal Year:
2024,
Volume and Issue:
67(10), P. 8296 - 8308
Published: May 13, 2024
Platinum-drug-based
chemotherapy
in
clinics
has
achieved
great
success
clinical
malignancy
therapy.
However,
unpredictable
off-target
toxicity
and
the
resulting
severe
side
effects
treatment
are
still
unsolved
problems.
Although
metabolic
glycan
labeling-mediated
tumor-targeted
therapy
been
widely
reported,
less
selective
labeling
vivo
limited
its
wide
application.
Herein,
a
novel
probe
of
B–Ac3ManNAz
that
is
regulated
by
reactive
oxygen
species
tumor
cells
introduced
to
enhance
recognition
cytotoxicity
DBCO-modified
oxaliplatin(IV)
via
bioorthogonal
chemistry.
was
synthesized
from
Ac4ManNAz
incorporation
with
4-(hydroxymethyl)
benzeneboronic
acid
pinacol
ester
(HBAPE)
at
anomeric
position,
which
confirmed
be
ROS
could
robustly
label
glycans
on
cell
surface.
Moreover,
N3-treated
accumulation
click
chemistry
meanwhile
reduce
distribution
normal
tissue.
Our
strategy
provides
an
effective
precursor
for
tumor-specific
targeted
cancer
therapies.
Chemical
and
biological
orthogonal
reactions
involving
click
chemistry
continue
to
be
a
prominent
area
of
interest
in
biomedical
research.
Click
chemistry,
as
linking
reaction,
effectively
connects
diverse
small
molecular
units
generate
large
molecules
with
specific
structures
functions.
This
reaction
finds
widespread
application
modifying
the
surfaces
nanoparticles.
Traditional
organic
often
encounters
challenges
synthesizing
carbon
heteroatom
bonds,
accompanied
by
numerous
side
reactions.
Moreover,
limited
availability
chemical
groups
on
nanoparticle
significantly
restricts
their
modification
through
conventional
However,
development
has
triumphed
over
these
hurdles,
ensuring
that
complex
no
longer
impede
surface
These
high-performance
possess
characteristics
are
absent
current
environment,
including
high
selectivity,
rapid
rates,
excellent
biocompatibility.
The
utilization
greatly
propelled
nanoparticles
realm
tumor
treatment.
Increasingly,
tumor-targeting
being
conjugated
Furthermore,
bioorthogonal
derived
from
emerging
trending
topic
contemporary
trends
becoming
increasingly
apparent
recent
reports,
garnering
greater
attention
within
field
nanomedicine
engineering.
In
this
review,
we
elucidate
potential
for
modifications
nanomaterials
using
particular
focus
its
role
targeted
cancer
Additionally,
summarize
existing
future
opportunities
domain.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 12, 2025
Covalent
modification
of
cell
membranes
has
shown
promise
for
tumor
imaging
and
therapy.
However,
existing
membrane
labeling
techniques
face
challenges
such
as
slow
kinetics
poor
selectivity
cancer
cells,
leading
to
off-target
effects
suboptimal
in
vivo
efficacy.
Here,
we
present
an
enzyme-triggered
self-immobilization
strategy,
termed
E-SIM,
which
enables
rapid
selective
with
bioorthogonal
trans-cycloctene
(TCO)
handles
vivo.
E-SIM
utilizes
P-TCO,
alkaline
phosphatase
(ALP)
responsive
quinone
methide
(QM)
precursor
a
TCO
group,
facilitating
the
conjugation
high-density
onto
via
proximity
labeling.
These
groups
then
react
efficiently
tetrazine
(Tz)-bearing
reporters
fast
reaction,
resulting
significant
enrichment
various
sizes
modalities
on
membranes.
We
demonstrate
efficacy
reaction
pretargeted
multimodality
tumors
Notably,
achieve
efficient
installation
Tz-modified
Renilla
luciferase
cells
vivo,
thereby
offering
highly
sensitive
bioluminescence
signals
detecting
guiding
surgical
removal
small
human
HepG2
liver
peritoneal
metastases.
represents
robust
tool
precise
complex
environments,
feasible
multimodal
applications.
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 25, 2025
Abstract
Acute
lung
injury
(ALI)
is
a
clinically
critical
disease
characterized
by
overwhelming
inflammatory
response
and
significant
tissue
damage
with
no
specific
treatment
available
currently.
As
key
player
in
the
pathogenesis
of
ALI,
macrophages
are
aberrantly
activated
polarize
toward
pro‐inflammatory
phenotypes,
leading
to
overzealous
inflammation
injury.
Mitochondria
recognized
as
crucial
signaling
hub
governing
macrophage
function
polarization,
deregulation
which
causatively
related
defective
metabolism
macrophages,
deregulated
inflammation,
hence
ALI.
Herein,
an
inflammation‐responsive,
biomimetic
metal‐organic
framework
(MOF)
nanoplatform,
termed
a127/mito@ZIF@Ma
developed,
sophistically
designed
for
synergistic
delivery
macrophage‐derived
mitochondria
anti‐inflammatory
miRNA‐127
antagonist
resume
pulmonary
homeostasis
alleviate
Notably,
membrane
encapsulation
conferred
MOF
enhanced
transport
efficacy
both
vitro
vivo.
Therefore,
administration
nanoparticles
accordingly
profound
protection
mice
against
induced
either
bacterial
or
viral
infection
unnoticeable
toxicity.
The
study
thus
devises
novel
MOF‐based
nanosystem
that
integrates
transplantation
miRNA
therapeutics,
may
open
new
avenue
treating
ALI
relevant
diseases.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(20)
Published: March 19, 2024
Abstract
Protein
O−GlcNAcylation
is
a
ubiquitous
posttranslational
modification
of
cytosolic
and
nuclear
proteins
involved
in
numerous
fundamental
regulation
processes.
Investigation
by
metabolic
glycoengineering
(MGE)
has
been
carried
out
for
two
decades
with
peracetylated
N
‐acetylglucosamine
(GlcNAc)
‐acetylgalactosamine
derivatives
modified
varying
reporter
groups.
Recently,
it
shown
that
these
can
result
non‐specific
protein
labeling
termed
S
‐glyco
modification.
Here,
we
report
norbornene‐modified
GlcNAc
protected
phosphate
at
the
anomeric
position
their
application
MGE.
These
overcome
limitations
previously
used
O−GlcNAc
reporters.
They
do
not
lead
to
detectable
modification,
they
efficiently
react
inverse‐electron‐demand
Diels–Alder
(IEDDA)
reaction,
which
be
even
within
living
cells.
Using
derivative
an
‐acetyl‐2‐thioethyl‐protected
phosphate,
demonstrate
protein‐specific
detection
several
imaging
inside
cells
Förster
resonance
energy
transfer
(FRET)
visualized
confocal
fluorescence
lifetime
microscopy
(FLIM).
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(20)
Published: July 21, 2023
Abstract
With
the
advent
of
bioconjugation
chemistry
in
last
two
decades,
highlighted
by
Nobel
Prize
2022,
quest
for
possible
novel
applications
has
been
greatly
intensified,
broadening
prospects
these
mostly
simple,
specific,
and
high‐yield
reactions.
The
advancement
methods
is
anticipated
to
expand
scope
bioinstructive
bioadaptive
materials
science
future.
This
perspective
article
will
discuss
reactions
developed
this
research
area
over
10
years
coupling
various
biological
entities
such
as
polysaccharides,
oligonucleotides,
peptides,
proteins.
Building
on
this,
impact
3D
printing,
including
their
challenges
requirements
shown.
Established
procedures
modifying
molecular
structures
Covalent
Metal
Organic
Frameworks
(COF/MOF)
or
hybrid
biomedical
future
optimization
be
presented.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(32)
Published: May 8, 2024
Abstract
Cells
rely
heavily
on
the
uptake
of
exogenous
nutrients
for
survival,
growth,
and
differentiation.
Yet
quantifying
small
molecule
at
single
cell
level
is
difficult.
Here
we
present
a
new
approach
to
studying
nutrient
in
live
cells
using
Inverse
Electron‐Demand
Diels
Alder
(IEDDA)
chemistry.
We
have
modified
carboxyfluorescein‐diacetate‐succinimidyl
esters
(CFSE)—a
quenched
fluorophore
that
can
covalently
react
with
proteins
only
turned
cytosol
following
esterase
activity—with
tetrazine.
This
tetrazine
serves
as
second
quencher
pendant
fluorophore.
Upon
reaction
an
electron‐rich
or
strained
dienophile
IEDDA
reaction,
this
quenching
group
destroyed,
thereby
enabling
probe
fluoresce.
has
allowed
us
monitor
variety
dienophile‐containing
primary
immune
populations
flow
cytometry
live‐cell
microscopy.