Journal of Medicinal Chemistry,
Год журнала:
2018,
Номер
61(19), С. 8504 - 8535
Опубликована: Май 2, 2018
Small-molecule
(SM)
leads
in
the
early
drug
discovery
pipeline
are
progressed
primarily
based
on
potency
against
intended
target(s)
and
selectivity
a
very
narrow
slice
of
proteome.
So,
why
is
there
tendency
to
wait
until
SMs
matured
before
probing
for
deeper
mechanistic
understanding?
For
one,
concern
about
interpretation
complex
-omic
data
outputs
resources
needed
test
these
hypotheses.
However,
with
recent
advances
broad
endpoint
profiling
assays
that
have
companion
reference
databases
refined
technology
integration
strategies,
we
argue
complexity
can
translate
into
meaningful
decision-making.
This
same
strategy
also
prioritize
phenotypic
screening
hits
increase
likelihood
accessing
unprecedented
target
space.
In
this
Perspective.
will
highlight
cohesive
process
supports
SM
hit
prosecution,
providing
data-driven
rationale
suite
methods
direct
identification
targets
driving
relevant
biological
end
points.
Chemical Research in Toxicology,
Год журнала:
2019,
Номер
33(1), С. 95 - 118
Опубликована: Окт. 18, 2019
Unpredicted
human
safety
events
in
clinical
trials
for
new
drugs
are
costly
terms
of
health
and
money.
The
drug
discovery
industry
attempts
to
minimize
those
with
diligent
preclinical
testing.
Current
standard
practices
good
at
preventing
toxic
compounds
from
being
tested
the
clinic;
however,
false
negative
toxicity
results
still
a
reality.
Continual
improvement
must
be
pursued
realm.
Higher-quality
therapies
can
brought
forward
more
information
about
potential
toxicities
associated
mechanisms.
zebrafish
model
is
bridge
between
vitro
assays
mammalian
vivo
studies.
This
powerful
its
breadth
application
tractability
research.
In
past
two
decades,
our
understanding
disease
biology
has
grown
significantly
owing
thousands
studies
on
this
tiny
vertebrate.
Review
summarizes
challenges
strengths
model,
discusses
3Rs
value
that
it
deliver,
highlights
translatable
untranslatable
biology,
brings
together
reports
recent
focusing
toxicology.
Journal of Medicinal Chemistry,
Год журнала:
2021,
Номер
64(19), С. 14046 - 14128
Опубликована: Сен. 30, 2021
The
benzene
moiety
is
the
most
prevalent
ring
system
in
marketed
drugs,
underscoring
its
historic
popularity
drug
design
either
as
a
pharmacophore
or
scaffold
that
projects
pharmacophoric
elements.
However,
introspective
analyses
of
medicinal
chemistry
practices
at
beginning
21st
century
highlighted
indiscriminate
deployment
phenyl
rings
an
important
contributor
to
poor
physicochemical
properties
advanced
molecules,
which
limited
their
prospects
being
developed
into
effective
drugs.
This
Perspective
deliberates
on
and
applications
bioisosteric
replacements
for
have
provided
practical
solutions
range
developability
problems
frequently
encountered
lead
optimization
campaigns.
While
effect
compound
contextual
nature,
substitution
can
enhanced
potency,
solubility,
metabolic
stability
while
reducing
lipophilicity,
plasma
protein
binding,
phospholipidosis
potential,
inhibition
cytochrome
P450
enzymes
hERG
channel.
Abstract
The
modulation
of
PPIs
by
low
molecular
weight
chemical
compounds,
particularly
orally
bioavailable
molecules,
would
be
very
valuable
in
numerous
disease
indications.
However,
it
is
known
that
PPI
inhibitors
(iPPIs)
tend
to
have
properties
are
linked
poor
Absorption,
Distribution,
Metabolism,
Excretion
and
Toxicity
(ADMET)
some
cases
clinical
outcomes.
Previously
reported
silico
analyses
iPPIs
essentially
focused
on
physicochemical
but
several
other
ADMET
parameters
important
assess.
In
order
gain
new
insights
into
the
iPPIs,
computations
were
carried
out
eight
datasets
collected
from
databases.
These
involve
compounds
targeting
enzymes,
GPCRs,
ion
channels,
nuclear
receptors,
allosteric
modulators,
oral
marketed
drugs,
natural
product-derived
drugs
iPPIs.
Several
trends
should
assist
design
optimization
future
inhibitors,
either
for
drug
discovery
endeavors
or
biology
projects.
Journal of Chemical Information and Modeling,
Год журнала:
2019,
Номер
59(10), С. 4150 - 4158
Опубликована: Сен. 27, 2019
Machine
learning
algorithms
have
attained
widespread
use
in
assessing
the
potential
toxicities
of
pharmaceuticals
and
industrial
chemicals
because
their
faster
speed
lower
cost
compared
to
experimental
bioassays.
Gradient
boosting
is
an
effective
algorithm
that
often
achieves
high
predictivity,
but
historically
relative
long
computational
time
limited
its
applications
predicting
large
compound
libraries
or
developing
silico
predictive
models
require
frequent
retraining.
LightGBM,
a
recent
improvement
gradient
algorithm,
inherited
predictivity
resolved
scalability
by
adopting
leaf-wise
tree
growth
strategy
introducing
novel
techniques.
In
this
study,
we
performance
LightGBM
deep
neural
networks,
random
forests,
support
vector
machines,
XGBoost.
All
were
rigorously
evaluated
on
publicly
available
Tox21
mutagenicity
data
sets
using
Bayesian
optimization
integrated
nested
10-fold
cross-validation
scheme
performs
hyperparameter
while
examining
model
generalizability
transferability
new
data.
The
evaluation
results
demonstrated
highly
scalable
offering
best
consuming
significantly
shorter
than
other
investigated
across
all
sets.
We
recommend
for
safety
assessment
also
areas
cheminformatics
fulfill
ever-growing
demand
accurate
rapid
prediction
various
toxicity
activity
related
end
points
present
pharmaceutical
chemical
industry.
Chemical Research in Toxicology,
Год журнала:
2019,
Номер
33(1), С. 20 - 37
Опубликована: Окт. 18, 2019
Drug
toxicity
evaluation
is
an
essential
process
of
drug
development
as
it
reportedly
responsible
for
the
attrition
approximately
30%
candidates.
The
rapid
increase
in
number
and
types
large
toxicology
data
sets
together
with
advances
computational
methods
may
be
used
to
improve
many
steps
safety
evaluation.
silico
models
screen
understand
mechanisms
particularly
beneficial
early
stages
where
assessment
can
most
reduce
expenses
labor
time.
To
facilitate
this,
machine
learning
have
been
employed
evaluate
but
are
often
limited
by
small
less
diverse
sets.
Recent
big
such
molecular
descriptors,
toxicogenomics,
high-throughput
bioactivity
help
alleviate
some
current
challenges.
In
this
article,
common
reviewed
examples
studies
that
methodology.
Furthermore,
a
comprehensive
overview
different
tools
available
build
prediction
has
provided
give
landscape
highlight
opportunities
challenges
related
them.