Frontiers in Immunology,
Journal Year:
2023,
Volume and Issue:
14
Published: March 13, 2023
The
use
of
immune
checkpoint
inhibitors
(ICIs)
targeting
the
T
cell
inhibitory
pathways
has
revolutionized
cancer
treatment.
However,
ICIs
might
induce
progressive
atopic
dermatitis
(AD)
by
affecting
reactivation.
critical
role
cells
in
AD
pathogenesis
is
widely
known.
co-signaling
regulate
activation,
where
molecules
are
essential
for
determining
magnitude
response
to
antigens.
Given
increasing
treatment,
a
timely
overview
required.
In
this
review,
we
emphasize
importance
these
involved
pathogenesis.
We
also
discuss
potential
treat
and
present
unresolved
issues
existing
limitations.
A
better
understanding
would
aid
investigation
mechanism,
prognosis
evaluation,
treatment
AD.
Biofabrication,
Journal Year:
2020,
Volume and Issue:
12(3), P. 035002 - 035002
Published: Feb. 14, 2020
Three-dimensional
(3D)
biofabrication
techniques
enable
the
production
of
multicellular
tissue
models
as
assay
platforms
for
drug
screening.
The
increased
cellular
and
physiological
complexity
in
these
3D
should
recapitulate
relevant
biological
environment
found
body.
Here
we
describe
use
bioprinting
to
fabricate
skin
equivalent
tissues
varying
complexity,
including
human
epidermis,
non-vascularized
vascularized
full-thickness
equivalents,
a
multi-well
platform
Human
keratinocytes,
fibroblasts,
pericytes,
induced
pluripotent
stem
cell-derived
endothelial
cells
were
used
process
produce
complexity.
equivalents
exhibit
correct
structural
markers
dermis
epidermis
stratification,
with
functions
barrier.
robustness,
versatility
reproducibility
are
further
highlighted
by
generation
atopic
dermatitis
(AD)-disease
like
tissues.
These
AD
demonstrate
several
clinical
hallmarks
disease,
including:
(i)
spongiosis
hyperplasia;
(ii)
early
terminal
expression
differentiation
proteins;
(iii)
increases
levels
pro-inflammatory
cytokines.
We
show
pre-clinical
relevance
biofabricated
disease
phenotype
testing
effects
dexamethasone,
an
anti-inflammatory
corticosteroid,
three
Janus
Kinase
inhibitors
from
trials
AD.
This
study
demonstrates
development
versatile
reproducible
approach
create
range
modeling.
In
addition,
establish
readouts
that
quantifiable,
robust,
relevant,
can
be
scaled
up
compound
results
develops
more
physiologically
model.
Thus,
this
offer
vitro
rapid
understanding
pathological
mechanisms,
efficacy
action
toxic
drugs.
Journal of Clinical Medicine,
Journal Year:
2023,
Volume and Issue:
12(7), P. 2701 - 2701
Published: April 4, 2023
Atopic
dermatitis
(AD)
is
a
common
chronic
inflammatory
skin
disease
with
high
prevalence
worldwide,
including
countries
from
Asia,
Africa,
and
Latin
America,
in
different
ethnic
groups.
In
recent
years,
more
attention
has
been
placed
on
the
heterogeneity
of
AD
associated
multiple
factors,
patient’s
background,
resulting
an
increasing
body
clinical,
genetic,
epidemiologic,
immune-phenotypic
evidence
that
delineates
differences
among
racial
Filaggrin
(FLG)
mutations,
strongest
genetic
risk
factor
for
development
AD,
are
detected
up
to
50%
European
27%
Asian
patients,
but
very
rarely
Africans.
Th2
hyperactivation
attribute
all
groups,
though
endotype
also
characterized
by
increased
Th17-mediated
signal,
whereas
African
Americans
show
strong
Th2/Th22
signature
absence
Th1/Th17
skewing.
addition,
may
hold
important
therapeutic
implications
as
predisposition
affect
treatment
response
and,
thereby,
tailored
strategy
better
targets
dominant
immunologic
pathways
each
subgroup
be
envisaged.
Nevertheless,
white
patients
represent
largest
ethnicity
enrolled
tested
clinical
trials
most
treated
real-world
setting,
limiting
investigations
about
safety
efficacy
across
ethnicities.
The
purpose
this
review
describe
pathophysiology
ethnicities
its
potential
implications.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Nov. 4, 2023
Abstract
Inhibition
of
Janus
kinase
(JAK)
family
enzymes
is
a
popular
strategy
for
treating
inflammatory
and
autoimmune
skin
diseases.
In
the
clinic,
small
molecule
JAK
inhibitors
show
distinct
efficacy
safety
profiles,
likely
reflecting
variable
selectivity
subtypes.
Absolute
subtype
has
not
yet
been
achieved.
Here,
we
rationally
design
interfering
RNAs
(siRNAs)
that
offer
sequence-specific
gene
silencing
JAK1,
narrowing
spectrum
action
on
JAK-dependent
cytokine
signaling
to
maintain
improve
safety.
Our
fully
chemically
modified
siRNA
supports
efficient
JAK1
expression
in
human
explant
modulation
JAK1-dependent
signaling.
A
single
injection
into
mouse
enables
five
weeks
duration
effect.
model
vitiligo,
local
administration
significantly
reduces
infiltration
autoreactive
CD8
+
T
cells
prevents
epidermal
depigmentation.
This
work
establishes
path
toward
treatments
as
new
class
therapeutic
modality
International Archives of Allergy and Immunology,
Journal Year:
2019,
Volume and Issue:
178(3), P. 207 - 218
Published: Jan. 1, 2019
Atopic
dermatitis
(AD)
is
a
chronic
inflammatory
skin
disease
presenting
with
recurrent
eczematous
lesions
and
intense
pruritus.
It
common
affects
both
children
adults,
often
beginning
in
infancy.
Due
to
the
unpredictable
course,
its
visible
lesions,
itching
scratching
followed
by
sleeplessness,
other
associated
atopic
diseases,
behavioral
psychiatric
disorders,
AD
an
immense
burden
for
patients
caregivers.
determined
genetic
predisposition
characterized
impaired
barrier
T-helper-2-predominant
inflammation.
Restoration
of
main
approach
treating
preventing
AD.
In
order
cope
acute
flares,
usually
topical
corticosteroids
(TCS)
are
applied,
while
calcineurin
inhibitors
(TCI)
used
mainly
maintenance
therapy.
There
small
group
who
refractory
TCS
TCI
require
systemic
immunosuppressive
drugs
such
as
ciclosporin.
Novel,
targeted
therapies
under
clinical
investigation,
among
which
anti-IL-4/IL-13
receptor
antibody
has
recently
been
approved
several
countries.
As
we
learn
understand
pathomechanisms
AD,
characteristics
different
patient
subgroups,
effectiveness
various
therapies,
personalized
treatment
ensuring
best
efficacy
safety
and,
probably,
disease-modifying
effect
will
result.
Frontiers in Immunology,
Journal Year:
2020,
Volume and Issue:
11
Published: March 3, 2020
Background:
Cutaneous
lupus
erythematosus
(CLE)
is
an
interferon
(IFN)
-driven
autoimmune
skin
disease
characterized
by
extensive
cytotoxic
lesional
inflammation
with
activation
of
different
innate
immune
pathways.
Aim
our
study
was
to
investigate
the
specific
role
Janus
kinase
1
(JAK1)
in
this
and
potential
benefit
selective
JAK1
inhibitors
as
targeted
therapy
a
preclinical
CLE
model.
Methods:
Lesional
patients
subtypes
healthy
controls
(N=31)
were
investigated
on
expression
IFN-associated
mediators
via
immunohistochemistry
gene
analyses.
The
functional
efficacy
inhibition
evaluated
vitro
using
cultured
keratinocytes
stimulated
endogenous
nucleic
acids.
Results
confirmed
vivo
established
lupus-prone
mouse
Results:
Proinflammatory
pathways,
including
JAK/STAT
signaling,
are
significantly
upregulated
within
inflamed
skin.
Here,
dermal
cells
strongly
express
activated
phospho-JAK1.
Selective
pharmacological
reduces
typical
proinflammatory
such
CXCL
chemokines,
BLyS,
TRAIL
AIM2
models
also
improves
lesions
TREX1-/-
-mice
markedly.
Conclusion:
plays
crucial
pathophysiology
CLE.
leads
decrease
cytokine
expression,
reduced
decline
keratinocyte
cell
death.
Topical
treatment
JAK1-specific
inhibitor
CLE-like
-mouse
model
appears
be
promising
therapeutic
approach
for
patients.