Bioorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
153, P. 107877 - 107877
Published: Oct. 10, 2024
Parkinson's
disease
(PD)
is
a
neurodegenerative
disorder
characterized
by
progressive
loss
of
nigrostriatal
dopaminergic
neurons.
Inhibitors
monoamine
oxidase
B
(MAO-B)
have
shown
promise
in
alleviating
motor
symptoms
and
reducing
oxidative
stress
associated
with
PD.
In
this
study,
we
report
the
novel
use
an
azastilbene-based
compound
library
for
screening
human
(h)MAO-B,
followed
optimization
initial
hits
to
obtain
compounds
low
nanomolar
inhibitory
potencies
(compound
9,
IC
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Jan. 13, 2024
Abstract
Sixteen
isatin-based
hydrazone
derivatives
(
IS1
–
IS16
)
were
synthesized
and
assessed
for
their
ability
to
inhibit
monoamine
oxidases
(MAOs).
All
the
molecules
showed
improved
inhibitory
MAO-B
activity
compared
MAO-A.
Compound
IS7
most
potently
inhibited
with
an
IC
50
value
of
0.082
μM,
followed
by
IS13
IS6
(IC
=
0.104
0.124
respectively).
IS15
MAO-A
1.852
IS3
2.385
μM).
had
highest
selectivity
index
(SI)
263.80,
(233.85
212.57,
In
kinetic
study,
K
i
values
,
0.068
±
0.022,
0.044
0.002,
0.061
0.001
respectively,
that
was
1.004
0.171
compounds
reversible-type
inhibitors.
The
lead
central
nervous
system
(CNS)
permeable,
as
per
parallel
artificial
membrane
permeability
assay
(PAMPA)
test
results.
examined
cytotoxicity
potential
neuroprotective
benefits
in
hazardous
lipopolysaccharide
(LPS)-exposed
SH-SY5Y
neuroblastoma
cells.
Pre-treatment
enhanced
anti-oxidant
levels
(SOD,
CAT,
GSH,
GPx)
decreased
ROS
pro-inflammatory
cytokine
(IL-6,
TNF-alpha,
NF-kB)
production
LPS-intoxicated
To
confirm
promising
effects
compound,
molecular
docking,
dynamics,
MM-GBSA
binding
energy
used
examine
basis
-MAO-B
interaction.
Our
findings
indicate
are
therapeutic
agents
treat
neurological
illnesses,
such
Parkinson's
disease.
European Journal of Medicinal Chemistry,
Journal Year:
2024,
Volume and Issue:
269, P. 116266 - 116266
Published: Feb. 28, 2024
In
neurodegenerative
diseases,
using
a
single
molecule
that
can
exert
multiple
effects
to
modify
the
disease
may
have
superior
activity
over
classical
"one
molecule-one
target"
approach.
Herein,
we
describe
discovery
of
6-hydroxybenzothiazol-2-carboxamides
as
highly
potent
and
selective
MAO-B
inhibitors.
Variation
amide
substituent
led
several
compounds
having
diverse
side
chains
with
cyclohexylamide
40
displaying
highest
potency
towards
(IC50
=
11
nM).
To
discover
new
extended
efficacy
against
neurotoxic
mechanisms
in
inhibitors
were
screened
PHF6,
R3
tau,
cellular
tau
α-synuclein
(α-syn)
aggregation.
We
identified
phenethylamide
30
multipotent
inhibitor
41
nM)
α-syn
It
showed
no
cytotoxic
on
SH-SY5Y
neuroblastoma
cells,
while
also
providing
neuroprotection
toxicities
induced
by
tau.
The
evaluation
key
physicochemical
vitro-ADME
properties
revealed
great
potential
drug-like
small
molecules
multitarget
neuroprotective
activity.
Journal of Saudi Chemical Society,
Journal Year:
2023,
Volume and Issue:
27(4), P. 101675 - 101675
Published: June 19, 2023
Halogenated
inhibitors
showed
robust,
reversible,
and
selective
monoamine
oxidase-B
(MAO-B)
inhibitory
efficacy
in
candidates
that
were
derived
from
them.
Our
team
has
previously
synthesized
assessed
a
panel
of
halogenated
chalcones
coumarin
for
the
study
on
MAO-B
inhibition.
The
aim
this
was
to
build
GA-MLR
based
QSAR
models
predictive
3D
Pharmacophore
models,
as
well
investigate
relationship
between
derivatives
activity.
robust
statistical
significance
parameter
(R2=0.78
Q2=0.69)
demonstrated.
Best
Hypo1
contains
one
hydrophobic
two
aromatic
rings.
lead
molecule
quantum
mechanics
performed,
it
revealed
would
bind
proteins
provide
stability.
To
determine
stability
ligand-enzyme
complex,
thorough
molecular
dynamics
analysis
compounds
accomplished.
ChemistrySelect,
Journal Year:
2024,
Volume and Issue:
9(27)
Published: July 16, 2024
Abstract
Molecular
dynamics
(MD)
simulation
is
an
in
silico
method
used
the
biomolecular
level
of
research
to
study
how
protein
interacts
with
target
time.
It
provides
a
detailed
information
and
ligand
structure
crucial
amino
acid
interactions.
Monoamine
oxidase
B
(MAO−B)
isoenzyme
responsible
for
catalyses
oxidative
deamination
various
biogenic
amines
brain
peripheral
tissues.
The
selective
inhibitors
MAO−B
are
considered
as
management
symptoms
neurodegenerative
disorders
like
Alzheimer's
disease(AD)
Parkinson
disease(PD).
Recently
structural
scaffolds
containing
chalcones,
coumarins
chromones
derived
candidates
shown
potent,
selective,
competitive
reversible
type
inhibitors.
similarities
between
above
can
produce
almost
similar
interactions
inhibitor
binding
cavity
MAO−B.
Numerous
molecular
reports
were
supported
by
mentioned
fact.
current
review
focus
on
last
ten
year
report
towards
inhibition.
also
focuses
software
details
MD
requirement
from
each
class
compound
recognition
inhibitory
activity.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(12)
Published: March 1, 2025
Abstract
The
rational
design
of
adenosine
A
2A
receptor
antagonists
offers
a
non‐dopaminergic
approach
to
alleviate
symptoms
Parkinson's
disease
(PD).
Preclinical
studies
indicate
that
may
inhibit
neuronal
loss,
although
human
are
essential
for
validating
effectiveness.
This
research
focuses
on
optimizing
ligands
the
through
multifaceted
method
uniting
3D
quantitative
structure–activity
relationship
(QSAR)
modeling,
molecular
docking,
binding
energy
calculations,
dynamics
(MD)
simulations,
and
interaction
analysis.
robust
atom‐based
3D‐QSAR
model
was
developed,
achieving
predictive
performance
metrics
(R
2
=
0.80,
Q
0.65)
identifying
key
structural
features
associated
with
bioactivity.
Screening
3,958
compounds,
five
lead
molecules
(CHEMBL16687,
113142,
1760901,
4289874,
482436)
were
prioritized
based
energies
(ranging
from
−12.938
−9.986
kcal/mol).
Binding
affinity
confirmations
MMGBSA
highlighted
significant
electrostatic
van
der
Waals
interactions.
200
ns
MD
simulation
assessed
stability
these
CHEMBL4289874
showcasing
exceptional
occupying
smallest
phase
space
in
principal
component
analysis
(PCA),
indicating
superior
relative
other
compounds.
2D
diagrams
elucidated
critical
ligand‐residue
interactions
fundamental
maintaining
integrity.
comprehensive
investigation
positions
as
an
exceptionally
promising
candidate
further
development
PD
treatment.
ChemistrySelect,
Journal Year:
2025,
Volume and Issue:
10(13)
Published: March 30, 2025
Abstract
Alzheimer's
disease,
which
is
recognized
as
a
progressive,
multifaceted
neurodegenerative
disorder,
the
main
factor
in
late‐life
dementia.
Monoamine
oxidase‐B
(MAO‐B)
has
recently
been
identified
potential
therapeutic
target
for
disease
(AD).
This
research
explores
inhibitory
effects
of
specific
chalcones
on
MAO‐B
utilizing
molecular
docking,
dynamics
(MD)
simulations,
MM‐PBSA
free
energy
calculations,
and
ADME
analysis.
The
results
docking
reveal
that
demonstrate
significant
binding
affinities
with
MAO‐B,
CHA
22.4
22.5
exhibiting
most
substantial
−8.68
−8.65
kcal/mol,
mainly
due
to
hydrogen
bonding
hydrophobic
interactions.
MD
simulations
validate
stability
protein‐ligand
complexes,
showing
RMSD
values
stabilizing
around
0.4
nm.
Meanwhile,
analysis
reveals
favorable
energies,
demonstrating
highest
(−111.27
kJ/mol),
indicating
robust
interaction
MAO‐B.
shows
all
chosen
adhere
Lipinski's
rule
five
exhibit
blood‐brain
barrier
(BBB)
permeability,
suggesting
possible
CNS
activity.
indicate
may
act
effective
inhibitors,
necessitating
additional
experimental
validation
investigate
their
treatment
disease.
Journal of Biomolecular Structure and Dynamics,
Journal Year:
2023,
Volume and Issue:
42(12), P. 6378 - 6392
Published: Aug. 7, 2023
AbstractA
series
of
chrysin
derivatives
were
designed,
synthesized,
and
evaluated
for
their
antibacterial
activity
against
four
different
bacterial
strains.
We
have
synthesized
new
propyl-substituted
butyl-substituted
chrysin-piperazine
derivatives,
which
show
marvellous
inhibition
E.
coli
S.
aureus.
The
free
hydroxyl
group
at
the
C-5
position
improved
therapeutic
efficacy
in
vivo
was
a
beneficial
formulation
chemotherapy.
All
compounds
confirmed
by
various
spectroscopic
techniques
such
as
IR,
NMR,
HPLC,
mass
spectrometry.
exhibited
moderate
to
good
inhibition,
structure–activity
relationship
(SAR)
has
also
been
illustrated.
Among
synthesised
compounds,
4
10
most
active
pyogenes
coli,
with
12.5
g/mL
MICs;
additionally,
compound
12
exhibits
significant
on
both
aureus
stains.
Based
promising
profile
docking
score
12,
it
selected
100
ns
MD
simulation
post-dynamic
binding
energy
analysis
within
sites
TyrRS
(PDB
ID:
1JIJ)
DNA
GyrB
6YD9)
investigate
stability
molecular
contacts
establish
how
newly
inhibitors
fit
together
stable
conformations.Communicated
Ramaswamy
H.
SarmaKeywords:
Flavone
derivativesmolecular
dockingMD
simulationsynthesisand
MMGBSA
AcknowledgmentThis
research
supported
Sardar
Vallabhbhai
National
Institute
Technology.
Authors
would
like
thank
Mahrshee
laboratory,
Darshan
health
care
Jaydev
chemical
gifting
piperazine
derivatives.
are
thankful
Micro
laboratory
Nirma
university
compounds.Disclosure
statementNo
potential
conflict
interest
reported
author(s).Additional
informationFundingThe
author(s)
there
is
no
funding
associated
work
featured
this
article.