International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(11), P. 6314 - 6314
Published: June 5, 2022
A
novel
series
of
coumarin-thiadiazole
hybrids,
derived
from
substituted
coumarin-3-carboxylic
acids
was
isolated
and
fully
characterized
with
the
use
a
number
spectroscopic
techniques
XRD
crystallography.
Several
compounds
showed
intensive
fluorescence
in
visible
region,
comparable
to
that
known
coumarin-based
standards.
Moreover,
new
were
tested
as
potential
antineurodegenerative
agents
via
their
ability
act
acetylcholinesterase
(AChE)
butyrylcholinesterase
(BuChE)
inhibitors.
Compared
commercial
standards,
only
few
demonstrated
moderate
AChE
BuChE
activities.
derivatives
for
antimicrobial
activity
against
panel
pathogenic
bacterial
fungal
species.
Their
lack
toxicity
across
broad
range
biochemical
assays,
together
exceptional
emission
some
hybrid
molecules,
highlights
possible
hybrids
standards
or
imaging
agents.
Future Pharmacology,
Journal Year:
2022,
Volume and Issue:
2(4), P. 460 - 498
Published: Nov. 2, 2022
The
struggle
between
humans
and
pathogens
has
taken
is
continuing
to
take
countless
lives
every
year.
As
the
misusage
of
conventional
antibiotics
increases,
complexity
associated
with
resistance
mechanisms
been
evolving
into
gradually
more
clever
mechanisms,
diminishing
effectiveness
antibiotics.
Hence,
there
a
growing
interest
in
discovering
novel
reliable
therapeutics
able
infection,
circumvent
defend
natural
microbiome.
In
this
regard,
nature-derived
phenolic
compounds
are
gaining
considerable
attention
due
their
potential
safety
therapeutic
effect.
Phenolic
comprise
numerous
widely
distributed
groups
different
biological
activities
attributed
mainly
structure.
Investigations
have
revealed
that
from
sources
exhibit
potent
antimicrobial
activity
against
various
clinically
relevant
microbial
infection
sensitize
multi-drug
strains
bactericidal
or
bacteriostatic
This
review
outlines
current
knowledge
about
sources,
particular
focus
on
structure-activity
relationship
actions
each
class
compounds,
including
simple
phenols,
acids,
coumarin,
flavonoids,
tannins,
stilbenes,
lignans,
quinones,
curcuminoids.
Frontiers in Chemistry,
Journal Year:
2021,
Volume and Issue:
9
Published: Dec. 1, 2021
The
coumarin
nucleus
is
a
recurring
motif
in
both
natural
and
synthetic
compounds
that
exhibit
broad
spectrum
of
biological
properties
including
anticoagulant,
anti-inflammatory,
antioxidant,
antiviral,
antimicrobial
anticancer
agents
as
well
enzyme
inhibitors.
On
the
other
hand,
it
has
been
reported
incorporation
metal
ion
into
derivatives
can
increase
activity
such
complexes
compared
to
coumarin-based
ligands.
Accordingly,
some
them
have
found
display
promising
antitumor
or
antibacterial
activities.
This
mini-review
briefly
summarizes
recent
development
coumarin-metal
with
proven
properties.
attention
also
paid
for
which
practical
applications
detection
biologically
important
species
may
be
found.
Drug Design Development and Therapy,
Journal Year:
2022,
Volume and Issue:
Volume 16, P. 2275 - 2288
Published: July 1, 2022
Inflammation
is
a
fundamental
response
of
the
immune
system
during
tissue
damage
or
pathogen
infection
to
protect
and
maintain
homeostasis.
However,
inflammation
may
lead
life-threatening
conditions.
The
most
common
treatment
non-steroidal
anti-inflammatory
drugs
(NSAIDs).
Nowadays,
development
safer
new
NSAIDs
critical
as
existing
have
serious
adverse
effects,
such
gastrointestinal
(GI)
toxicity
cardiotoxicity.
In
present
study,
four
compounds
Schiff
base
derivatives
7-hydroxy-4-formyl
coumarin
7-methoxy-4-formyl
were
designed
synthesized
aiming
develop
compound
that
exhibits
activity
circumvents
side
effects
NSAIDs,
especially
GI
toxicity.Lipinski's
rule
five
was
applied
for
each
molecule
evaluate
drug-likeness
properties.
Molecular
docking
studies
performed
using
ligands
cyclooxygenase-2
(COX-2)
protein
select
best-scored
AutoDock
4.2.6.
molecules
then
characterized.
An
in
vitro
assay
against
COX-2
receptor
realized
through
denaturation
assay.All
passed
Lipinski's
exhibited
higher
binding
free
energy
compared
positive
standard
control
(ibuprofen),
Ki
values
5,
7,
8
nanomolar
range.
only
6
7
obtained
percentage
inhibition
relative
ibuprofen.The
study
suggested
be
because
this
ligand
not
best
computational
experimental
results
but
also
strongest
correlation
between
concentration
(R
=
0.986
R2
0.972)
with
lowest
P-value
(0.014).
Pharmaceuticals,
Journal Year:
2023,
Volume and Issue:
16(4), P. 511 - 511
Published: March 30, 2023
Nrf2
(nuclear
factor
erythroid
2-related
2)
is
a
transcription
related
to
stress
response
and
cellular
homeostasis
that
plays
key
role
in
maintaining
the
redox
system.
The
imbalance
of
system
triggering
for
initiation
progression
non-communicable
diseases
(NCDs),
including
Inflammatory
Bowel
Disease
(IBD).
its
inhibitor
Kelch-like
ECH-associated
protein
1
(Keap1)
are
main
regulators
oxidative
their
activation
has
been
recognized
as
promising
strategy
treatment
or
prevention
several
acute
chronic
diseases.
Moreover,
Nrf2/keap
signaling
pathway
promotes
inhibition
NF-κB,
transcriptional
pro-inflammatory
cytokines
expression,
synchronically
promoting
an
anti-inflammatory
response.
Several
natural
coumarins
have
reported
potent
antioxidant
intestinal
compounds,
acting
by
different
mechanisms,
mainly
modulator
pathway.
Based
on
vivo
vitro
studies,
this
review
focuses
obtained
from
both
plant
products
fermentative
processes
food
plants
gut
microbiota,
which
activate
produce
activity.
Although
metabolites
urolithin
A
B
well
other
plant-derived
display
activity
modulating
pathway,
studies
necessary
better
pharmacological
characterization
evaluation
potential
lead
compounds.
Esculetin,
4-methylesculetin,
daphnetin,
osthole,
imperatorin
most
coumarin
derivatives
compounds
design
synthesis
activators
with
However,
further
structure–activity
relationships
experimental
models
inflammation
subsequent
clinical
trials
health
disease
volunteers
essential
determine
efficacy
safety
IBD
patients.
Small,
Journal Year:
2024,
Volume and Issue:
20(25)
Published: Jan. 12, 2024
Abstract
Radiation
resistance
in
breast
cancer
resulting
residual
lesions
or
recurrence
is
a
significant
cause
to
radiotherapy
failure.
Cancer‐associated
fibroblasts
(CAFs)
and
radiotherapy‐induced
senescent
CAFs
can
further
lead
radiation
tumor
immunosuppressive
microenvironment.
Here,
an
engineering
cancer‐cell‐biomimetic
nanoplatform
constructed
for
dual‐targeted
clearance
of
as
well
CAFs.
The
prepared
by
4T1
cell
membrane
vesicles
chimerized
with
FAP
single‐chain
fragment
variable
the
biomimetic
shell
targeting
CAFs,
PLGA
nanoparticles
(NPs)
co‐encapsulated
nintedanib
ABT‐263
core
which
are
noted
FAP‐CAR‐CM@PLGA‐AB
NPs.
It
evidenced
that
NPs
directly
suppressed
tumor‐promoting
effect
also
exhibits
prolonged
blood
circulation
enhanced
accumulation,
dual‐cleared
improved
both
acquired
patient‐derived
radioresistant
cells,
effective
antitumor
suppression
rate
86.7%.
In
addition,
reverse
microenvironment
enhance
systemic
immunity.
system
provides
potential
strategy
enhancing
radio‐sensitization
cancer.
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(11), P. 6099 - 6099
Published: June 1, 2024
Michael
acceptors
represent
a
class
of
compounds
with
potential
anti-cancer
properties.
They
act
by
binding
to
nucleophilic
sites
in
biological
molecules,
thereby
disrupting
cancer
cell
function
and
inducing
death.
This
mode
action,
as
well
their
ability
be
modified
targeted,
makes
them
promising
avenue
for
advancing
therapy.
We
are
investigating
the
molecular
mechanisms
underlying
interactions
cells,
particular
interfere
cellular
processes
induce
apoptosis.
The
properties
not
accidental
but
due
chemical
structure
reactivity.
electrophilic
nature
these
allows
selectively
target
residues
on
disease-associated
proteins,
resulting
significant
therapeutic
benefits
minimal
toxicity
various
diseases.
opens
up
new
perspectives
development
more
effective
precise
drugs.
Nevertheless,
further
studies
essential
fully
understand
impact
our
discoveries
translate
into
clinical
practice.
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(6), P. 3521 - 3521
Published: March 20, 2024
The
phrase
“Let
food
be
thy
medicine…”
means
that
can
a
form
of
medicine
and
food;
in
other
words,
the
diet
we
eat
have
significant
impact
on
our
health
well-being.
Today,
this
is
gaining
prominence
as
more
scientific
evidence
suggests
one’s
help
prevent
treat
disease.
A
rich
fruits,
vegetables,
whole
grains,
lean
protein
reduce
risk
heart
disease,
cancer,
diabetes,
problems
and,
hand,
processed
foods,
added
sugars,
saturated
fats
increase
same
diseases.
Electrophilic
compounds
health,
they
are
molecules
covalently
modify
cysteine
residues
present
thiol-rich
Keap1
protein.
These
bind
to
activate
NRF2,
which
promotes
its
translocation
nucleus
binding
DNA
ARE
region,
triggering
antioxidant
response
protecting
against
oxidative
stress.
include
polyphenols
flavonoids
nucleophilic
but
converted
electrophilic
quinones
by
metabolic
enzymes
such
polyphenol
oxidases
(PPOs)
sulfur
foods
Brassica
genus
(broccoli,
cauliflower,
cabbage,
Brussel
sprouts,
etc.)
garlic.
This
review
summarizes
current
knowledge
subject.
Journal of Medicinal Chemistry,
Journal Year:
2021,
Volume and Issue:
64(23), P. 17209 - 17220
Published: Nov. 19, 2021
Photodynamic
therapy
(PDT)
for
cancer
treatment
has
drawn
increased
attention
over
the
last
decades.
Herein,
we
introduce
a
novel
family
of
low-molecular-weight
coumarins
as
potential
PDT
anticancer
tools.
Through
systematic
study
with
library
15
compounds,
have
established
detailed
structure–activity
relationship
rationale,
which
allowed
selection
three
lead
compounds
exhibiting
effective
in
vitro
activities
upon
visible-light
irradiation
both
normoxia
and
hypoxia
(phototherapeutic
indexes
up
to
71)
minimal
toxicity
toward
normal
cells.
Acting
excellent
theranostic
agents
targeting
mitochondria,
mechanism
action
photosensitizers
been
investigated
detail
HeLa
The
generation
cytotoxic
reactive
oxygen
species,
found
be
major
contributor
coumarins'
phototoxicity,
induction
apoptosis
and/or
autophagy
identified
cell
death
modes
triggered
after
low
doses
visible
light.