npj Regenerative Medicine,
Journal Year:
2023,
Volume and Issue:
8(1)
Published: March 10, 2023
Macrophages
are
involved
mainly
in
the
balance
between
inflammation
and
tenogenesis
during
healing
process
of
tendinopathy.
However,
etiological
therapeutic
strategies
to
efficiently
treat
tendinopathy
by
modulating
macrophage
state
still
lacking.
In
this
study,
we
find
that
a
small
molecule
compound
Parishin-A
(PA)
isolated
from
Gastrodia
elata
could
promote
anti-inflammatory
M2
polarization
inhibiting
gene
transcription
protein
phosphorylation
signal
transducers
activators
1.
Local
injection
or
sustained
delivery
PA
mesoporous
silica
nanoparticles
(MSNs)
almost
recover
native
tendon's
dense
parallel-aligned
collagen
matrix
collagenase-induced
macrophage-mediated
immune
microenvironment
preventing
heterotopic
ossification.
Especially,
MSNs
decrease
doses
PA,
frequency
yield
preferable
effects.
Mechanistically,
intervention
with
indirectly
inhibit
activation
mammalian
target
rapamycin
repress
chondrogenic
osteogenic
differentiation
tendon
stem/progenitor
cells
influencing
inflammatory
cytokine
secretion.
Together,
pharmacological
natural
small-molecule
modulate
status
appears
be
promising
strategy
for
treatment.
ACS Nano,
Journal Year:
2021,
Volume and Issue:
15(8), P. 13339 - 13350
Published: July 29, 2021
The
microneedle
(MN)
provides
a
promising
strategy
for
transdermal
delivery
of
exosomes
(EXO),
in
which
the
therapeutic
effects
and
clinical
applications
are
greatly
reduced
by
fact
that
EXO
can
only
partially
reach
injury
site
passive
diffusion.
Here,
we
designed
detachable
MN
array
to
deliver
modified
nitric
oxide
nanomotor
(EXO/MBA)
Achilles
tendinopathy
(AT)
healing.
With
releasing
EXO/MBA,
l-arginine
was
converted
NOS
or
ROS
as
driving
force.
Benefiting
from
motion
ability
property
MPC
tending
lower
pH,
could
accumulate
at
more
efficiently.
This
work
demonstrated
EXO/MBA-loaded
notably
suppressed
inflammation
AT,
facilitated
proliferation
tendon
cells,
increased
expression
Col1a,
prevented
extracellular
matrix
degradation,
indicating
its
potential
value
enthesiopathy
healing
other
related
biomedical
fields.
International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(5), P. 4901 - 4901
Published: March 3, 2023
Psoriatic
arthritis
(PsA),
a
heterogeneous
chronic
inflammatory
immune-mediated
disease
characterized
by
musculoskeletal
inflammation
(arthritis,
enthesitis,
spondylitis,
and
dactylitis),
generally
occurs
in
patients
with
psoriasis.
PsA
is
also
associated
uveitis
bowel
(Crohn’s
ulcerative
colitis).
To
capture
these
manifestations
as
well
the
comorbidities,
to
recognize
their
underlining
common
pathogenesis,
name
of
psoriatic
was
coined.
The
pathogenesis
complex
multifaceted,
an
interplay
genetic
predisposition,
triggering
environmental
factors,
activation
innate
adaptive
immune
system,
although
autoinflammation
has
been
implicated.
Research
identified
several
immune-inflammatory
pathways
defined
cytokines
(IL-23/IL-17,
TNF),
leading
development
efficacious
therapeutic
targets.
However,
responses
drugs
occur
different
tissues
involved,
resulting
challenge
global
management
disease.
Therefore,
more
translational
research
necessary
order
identify
new
targets
improve
current
outcomes.
Hopefully,
this
may
become
reality
through
integration
omics
technologies
that
allow
better
understanding
relevant
cellular
molecular
players
In
narrative
review,
we
aim
provide
updated
overview
pathophysiology,
including
latest
findings
from
multiomics
studies,
describe
targeted
therapies.
Science,
Journal Year:
2023,
Volume and Issue:
379(6637)
Published: March 16, 2023
Autoimmune
diseases
such
as
ankylosing
spondylitis
(AS)
can
be
driven
by
emerging
neoantigens
that
disrupt
immune
tolerance.
Here,
we
developed
a
workflow
to
profile
posttranslational
modifications
involved
in
neoantigen
formation.
Using
mass
spectrometry,
identified
panel
of
cysteine
residues
differentially
modified
carboxyethylation
required
3-hydroxypropionic
acid
generate
patients
with
AS.
The
lysosomal
degradation
integrin
αIIb
[ITGA2B
(CD41)]
carboxyethylated
at
Cys96
(ITGA2B-ceC96)
generated
peptides
were
presented
HLA-DRB1*04
stimulate
CD4+
T
cell
responses
and
induce
autoantibody
production.
Immunization
HLA-DR4
transgenic
mice
the
ITGA2B-ceC96
peptide
promoted
colitis
vertebral
bone
erosion.
Thus,
metabolite-induced
give
rise
pathogenic
lead
autoreactive
production
autoimmune
diseases.
Annals of the Rheumatic Diseases,
Journal Year:
2020,
Volume and Issue:
79(8), P. 1044 - 1054
Published: May 13, 2020
The
human
enthesis
conventional
T
cells
are
poorly
characterised.To
study
the
biology
of
in
enthesis.CD4+
and
CD8+
were
investigated
25
samples
using
immunofluorescence,
cytometrically,
bulk
RNAseq
quantitative
real-time
PCR
following
anti-CD3/CD28
bead
stimulation
to
determine
interleukin
(IL)-17A
tumour
necrosis
factor
(TNF)
levels.
T-cell
receptor
(TCR)
repertoires
characterised
a
search
for
putative
reactivity
was
carried
out
TCR3
database.
impact
pharmacological
antagonism
with
retinoic
acid
receptor-related
orphan
nuclear
gamma
t
inhibitor
(RORγti),
methotrexate
phosphodiesterase
type
4
(PDE4i)
investigated.Immunofluorescence
cytometry
suggested
entheseal
resident
CD4+
memory
phenotype
(CD69+/CD45RA-)
tissue
residency
gene
transcripts
(higher
NR4A1/AhR
lower
KLF2/T-bet
transcripts).
Both
showed
increased
expression
immunomodulatory
genes
including
IL-10
TGF-β
compared
peripheral
blood
having
higher
CD103,
CD49a
SIPR1
transcript
that
matched
cells.
Following
stimulation,
produced
more
TNF
than
IL-17A
exclusively
by
both
Cytomegalovirus
influenza
A
virus
clonotype
reactivity.
production
from
effectively
inhibited
PDE4i,
while
RORγti
only
reduced
secretion.Healthy
exhibit
regulatory
characteristics
predicted
antiviral
expressing
levels
suggestive
residency.
Inducible
can
be
robustly
vitro.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
33(40)
Published: Aug. 23, 2021
Abstract
Tendon
disease
constitutes
an
unmet
clinical
need
and
remains
a
critical
challenge
in
the
field
of
orthopaedic
surgery.
Innovative
solutions
are
required
to
overcome
limitations
current
tendon
grafting
approaches,
bioelectronic
therapies
show
promise
treating
musculoskeletal
diseases,
accelerating
functional
recovery
through
activation
tissue
regeneration‐specific
signaling
pathways.
Self‐powered
devices,
particularly
piezoelectric
materials,
represent
paradigm
shift
biomedicine,
negating
for
battery
or
external
powering
complementing
existing
mechanotherapy
accelerate
repair
processes.
Here,
dynamic
response
cells
collagen‐analogue
scaffold
comprised
aligned
nanoscale
fibers
made
ferroelectric
material
poly(vinylidene
fluoride‐
co
‐trifluoroethylene)
is
shown.
It
demonstrated
that
motion‐powered
electromechanical
stimulation
piezo‐bioelectric
device
results
ion
channel
modulation
vitro
regulates
specific
regeneration
Finally,
potential
piezo‐bioelectronic
modulating
progression
tendinopathy‐associated
processes
vivo,
using
rat
Achilles
acute
injury
model
This
study
indicates
mechanosensitive
sensitivity
promotes
tendon‐specific
over
non‐tenogenic
Cell Discovery,
Journal Year:
2022,
Volume and Issue:
8(1)
Published: July 12, 2022
Keratoconus
is
a
common
ectatic
corneal
disorder
in
adolescents
and
young
adults
that
can
lead
to
progressive
visual
impairment
or
even
legal
blindness.
Despite
the
high
prevalence,
its
etiology
not
fully
understood.
In
this
study,
we
performed
single-cell
RNA
sequencing
(scRNA-Seq)
analysis
on
39,214
cells
from
central
corneas
of
patients
with
keratoconus
healthy
individuals,
define
involvement
each
cell
type
during
disease
progression.
We
confirmed
role
stromal
disease,
where
dysregulation
collagen
extracellular
matrix
(ECM)
occurred.
Differential
gene
expression
histological
analyses
revealed
two
potential
novel
markers
for
cells,
namely
CTSD
CTSK.
Intriguingly,
detected
elevated
levels
YAP1
TEAD1,
master
regulators
biomechanical
homeostasis,
cells.
Cyclical
mechanical
experiments
implicated
stretch
prompting
protease
production
epithelial
corneas,
observed
reduced
basal
abnormally
differentiated
superficial
unraveling
lesions
were
usually
neglected
clinical
diagnosis.
addition,
several
cytokines
immune
samples
supported
inflammatory
response
progression
keratoconus.
Finally,
dysregulated
cell-cell
communications
keratoconus,
found
only
few
ligand-receptor
interactions
gained
but
large
fraction
interactional
pairs
was
erased
especially
those
related
inhibition
anti-inflammatory
process.
Taken
together,
study
facilitates
understanding
molecular
mechanisms
underlying
pathogenesis,
providing
insights
into
diagnosis
interventions.