Journal of Biomolecular Structure and Dynamics,
Journal Year:
2022,
Volume and Issue:
41(16), P. 8042 - 8052
Published: Oct. 2, 2022
Cyclin-dependent
kinase
5
(CDK5)
is
a
proline-directed
serine-threonine
protein
vital
for
neuronal
cell
cycle
arrest
and
differentiation.
It
activates
by
binding
with
p35
p39
important
the
functioning
of
nervous
system.
A
growing
body
evidence
suggests
that
CDK5
contributes
to
onset
progression
neurodegeneration
tumorigenesis
represents
itself
as
potential
therapeutic
target.
Our
research
illustrates
virtual
screening
phytochemicals
from
IMPPAT
(Indian
Medicinal
Plants,
Phytochemistry
Therapeutics)
library
search
inhibitors
CDK5.
Initially,
compounds
parent
were
filtered
out
via
their
physicochemical
properties
following
Lipinski
rule
five.
Then
sequentially,
molecular
docking-based
screening,
PAINS
filter,
ADMET,
PASS
analysis,
dynamics
(MD)
simulation
done
using
various
computational
tools
adversities
can
cause
hindrances
in
identification
Finally,
two
selected
extensive
showing
significant
ATP-binding
pocket
ultimately
potent
ATP-competitive
we
propose
elucidated
Desmodin
Isopongachromene
be
used
further
drug
discovery
process
act
therapeutics
medical
industry
treat
certain
complex
diseases,
including
cancer
neurodegeneration.Communicated
Ramaswamy
H.
Sarma.
Archiv der Pharmazie,
Journal Year:
2023,
Volume and Issue:
357(2)
Published: Nov. 27, 2023
Abstract
Diabetes
mellitus
(DM)
has
prevailed
as
a
chronic
health
condition
and
become
serious
global
issue
due
to
its
numerous
consequences
high
prevalence.
We
have
synthesized
series
of
hydrazone
derivatives
tested
their
antidiabetic
potential
by
inhibiting
the
essential
carbohydrate
catabolic
enzyme,
“α‐glucosidase.”
Several
approaches
including
fourier
transform
infrared,
1
H
NMR,
13
C
NMR
were
utilized
confirm
structures
all
derivatives.
In
vitro
analysis
compounds
3a
–
3p
displayed
more
effective
inhibitory
activities
against
α‐glucosidase
with
IC
50
in
range
2.80–29.66
µM
compared
commercially
available
inhibitor,
acarbose
(IC
=
873.34
±
1.67
M).
Compound
3h
showed
highest
an
value
2.80
0.03
µM,
followed
3i
4.13
0.06
µM),
3f
5.18
0.10
3c
5.42
0.11
3g
6.17
0.15
3d
6.76
0.20
9.59
0.14
3n
10.01
0.42
µM).
Kinetics
most
potent
compound
revealed
concentration‐dependent
form
inhibition
K
i
4.76
0.0068
µM.
Additionally,
silico
docking
approach
was
applied
predict
binding
patterns
compounds,
which
indicates
that
hydrazide
naphthalene‐ol
groups
play
vital
role
residues
(i.e.,
Glu277
Gln279)
enzyme.
Phytochemical Analysis,
Journal Year:
2023,
Volume and Issue:
34(8), P. 984 - 996
Published: July 22, 2023
Abstract
Introduction
Ophiocordyceps
gracilis
,
a
type
of
edible
and
medicinal
fungus,
exhibits
multiple
health‐promoting
effects.
Due
to
the
scarcity
natural
O.
artificial
cultures
have
been
developed
as
its
substitutes.
However,
lacking
comprehension
metabolite
composition
limits
utilisation.
Objective
This
research
aimed
evaluate
nutritional
value
four
by
analysing
their
composition.
In
addition,
metabolic
pathways
in
mycelia
fruiting
bodies
were
analysed
explore
body
formation
mechanism
at
level.
Method
The
mycelia,
fermentation
broth,
spore
powder
cultivated
this
study.
Their
was
compared
using
an
untargeted
metabolomics
approach
based
on
liquid
chromatography–tandem
mass
spectrometry
(LC–MS/MS).
Results
Principal
component
analysis
(PCA)
orthogonal
projections
latent
structures
discriminant
(OPLS‐DA)
showed
that
noticeable
differences
A
total
612
metabolites
identified,
among
which
159
significant
differences,
these
differential
classified
into
13
categories.
most
abundant
with
other
cultures.
each
culture
had
own
advantages
significantly
accumulates
some
active
respectively.
Pearson's
correlation
mutual
relationship
metabolites.
seven
closely
related
formation,
such
“Biosynthesis
plant
secondary
metabolites”,
“amino
acids
metabolism”,
“tricarboxylic
acid
(TCA)
cycle”.
Conclusion
study
offered
reference
functional
foods
medicine.
Molecules,
Journal Year:
2022,
Volume and Issue:
27(14), P. 4652 - 4652
Published: July 21, 2022
Microtubule
affinity
regulating
kinase
4
(MARK4)
regulates
the
mechanism
of
microtubules
by
its
ability
to
phosphorylate
microtubule-associated
proteins
(MAP's).
MARK4
is
known
for
major
role
in
tau
phosphorylation
via
phosphorylating
Ser262
residue
KXGS
motif,
which
results
detachment
from
microtubule.
In
lieu
this
vital
pathology,
a
hallmark
Alzheimer's
disease
(AD),
druggable
target
treat
AD
and
other
neurodegenerative
disorders
(NDs).
There
growing
evidence
that
NDs
diabetes
are
connected
with
many
pieces
literature
demonstrating
high
risk
developing
diabetic
patients.
Metformin
(Mtf)
has
been
drug
use
against
type
2
mellitus
(T2DM)
long
time;
however,
recent
studies
have
established
therapeutic
effect
diseases
(NDs),
namely
AD,
Parkinson's
(PD)
amnestic
mild
cognitive
impairment.
study,
we
explored
inhibitory
potential
Mtf,
employing
silico
vitro
approaches.
Molecular
docking
demonstrated
Mtf
binds
significant
-6.9
kcal/mol
forming
interactions
binding
pocket's
critical
residues.
Additionally,
molecular
dynamics
(MD)
simulation
provided
an
atomistic
insight
into
MARK4.
ATPase
assay
presence
shows
it
inhibits
IC50
=
7.05
µM.
The
fluorescence
constant
0.6
×
106
M-1.
present
study
provides
additional
axis
towards
utilization
as
inhibitor
targeting
NDs.
International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(15), P. 8768 - 8768
Published: Aug. 7, 2022
In
view
of
the
unsatisfactory
treatment
cognitive
disorders,
in
particular
Alzheimer’s
disease
(AD),
aim
this
review
was
to
perform
a
computer-aided
analysis
state
art
that
will
help
search
for
innovative
polypharmacology-based
therapeutic
approaches
fight
against
AD.
Apart
from
20-year
unrenewed
cholinesterase-
or
NMDA-based
AD
therapy,
hope
effectively
treating
has
been
placed
on
serotonin
5-HT6
receptor
(5-HT6R),
due
its
proven,
both
agonists
and
antagonists,
beneficial
procognitive
effects
animal
models;
however,
research
into
so
far
not
successfully
translated
human
patients.
Recent
lines
evidence
strongly
emphasize
role
kinases,
microtubule
affinity-regulating
kinase
4
(MARK4),
Rho-associated
coiled-coil-containing
protein
I/II
(ROCKI/II)
cyclin-dependent
5
(CDK5)
etiology
AD,
pointing
potential
their
inhibitors
only
symptoms,
but
also
causes
disease.
Thus,
finding
drug
acts
simultaneously
5-HT6R
one
those
kinases
provide
breakthrough
treatment.
The
pharmacophore-
docking-based
comprehensive
literature
performed
herein
serves
answer
question
whether
design
these
kind
dual
agents
is
possible,
conclusions
turned
out
be
highly
promising.
Frontiers in Pharmacology,
Journal Year:
2023,
Volume and Issue:
14
Published: Sept. 19, 2023
Introduction:
Hyperphosphorylation
of
tau
is
an
important
event
in
Alzheimer’s
disease
(AD)
pathogenesis,
leading
to
the
generation
“neurofibrillary
tangles,”
a
histopathological
hallmark
associated
with
onset
AD
and
related
tauopathies.
Microtubule-affinity
regulating
kinase
4
(MARK4)
evolutionarily
conserved
Ser-Thr
(S/T)
that
phosphorylates
microtubule-associated
proteins,
thus
playing
critical
role
pathology.
The
uncontrolled
neuronal
migration
attributed
overexpressed
MARK4,
disruption
microtubule
dynamics.
Inhibiting
MARK4
attractive
strategy
therapeutics.
Methods:
Molecular
docking
was
performed
see
interactions
between
galantamine
(GLT).
Furthermore,
250
ns
molecular
dynamic
studies
were
investigate
stability
conformational
dynamics
MARK4–GLT
complex.
We
fluorescence
binding
isothermal
titration
calorimetry
measure
affinity
GLT
MARK4.
Finally,
enzyme
inhibition
assay
activity
presence
absence
GLT.
Results:
showed
GLT,
acetylcholinesterase
inhibitor,
binds
active
site
cavity
appreciable
affinity.
simulation
for
demonstrated
Fluorescence
suggested
strong
further
show
inhibits
significantly
(IC
50
=
5.87
µM).
Conclusion:
These
results
suggest
potential
inhibitor
could
be
promising
therapeutic
target
AD.
GLT’s
provides
newer
insights
into
mechanism
action,
which
already
used
improve
cognition
patients.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: March 29, 2024
Abstract/Summary
Immediate-early
genes
(IEGs)
are
a
class
of
activity-regulated
(ARGs)
that
transiently
and
rapidly
activated
in
the
absence
de
novo
protein
synthesis
response
to
neuronal
activity.
We
explored
role
IEGs
genetic
networks
pinpoint
potential
drug
targets
for
Alzheimer’s
disease
(AD).
Using
combination
network
analysis
genome-wide
association
study
(GWAS)
summary
statistics
we
show
(1)
exert
greater
topological
influence
across
different
human
mouse
gene
compared
other
ARGs,
(2)
ARGs
sparsely
involved
diseases
significantly
more
mutational
constrained
non-ARGs,
(3)
Many
AD-linked
variants
regions,
mainly
MARK4
near
FOSB,
with
an
AD
risk
eQTL
increases
expression
cortical
areas,
(4)
holds
influential
place
dense
multi-omic
high
druggability
score.
Our
work
on
IEGs’
is
valuable
contribution
guiding
interventions
marked
by
dysregulation
their
downstream
highlights
as
promising
underexplored
AD-target.
Highlights
topologically
brain
human.
Activity-regulated
Genes
highly
sparse
gene-disease
relevance.
There
several
AD-associated
FOSB
.
GWAS
ARG’s
target.
Aging and Disease,
Journal Year:
2024,
Volume and Issue:
unknown, P. 0 - 0
Published: Jan. 1, 2024
As
a
neurodegenerative
disease
closely
related
to
age-related
changes,
Alzheimer's
(AD)
is
rapidly
becoming
one
of
the
most
resource-intensive
and
deadly
diseases
this
century.
systemic
neurotransmitter
system
with
widespread
distribution
throughout
central
peripheral
nervous
systems,
5-hydroxytryptamine
(5-HT)
not
only
plays
an
important
role
in
antidepressant
therapy
but
also
shows
potential
value
improving
AD
symptoms.
The
5-HT
may
facilitate
prevention
treatment
by
impacting
its
pathological
processes
through
various
pathways,
such
as
regulation
Aβ
deposition,
hyperphosphorylation
Tau,
neuroinflammation,
interactions
cholinergic
BDNF
systems.
In
addition,
regular
exercise,
non-pharmacological
intervention,
provides
multi-level
physical
health
benefits.
Given
high
sensitivity
paper
reviews
crucial
mechanisms
alleviating
exercise.
From
perspective
integrative
biology
we
propose
several
crosstalk
between
systems
mediated
system.
These
serve
bridge
for
offer
novel
ideas
strategies
future
therapeutic
approaches.