International Journal of Molecular Sciences,
Journal Year:
2023,
Volume and Issue:
24(6), P. 5643 - 5643
Published: March 15, 2023
With
the
aging
of
population,
malignancies
are
becoming
common
complications
in
patients
with
rheumatoid
arthritis
(RA),
particularly
elderly
patients.
Such
often
interfere
RA
treatment.
Among
several
therapeutic
agents,
immune
checkpoint
inhibitors
(ICIs)
which
antagonize
immunological
brakes
on
T
lymphocytes
have
emerged
as
a
promising
treatment
option
for
variety
malignancies.
In
parallel,
evidence
has
accumulated
that
ICIs
associated
numerous
immune-related
adverse
events
(irAEs),
such
hypophysitis,
myocarditis,
pneumonitis,
and
colitis.
Moreover,
not
only
exacerbate
pre-existing
autoimmune
diseases,
but
also
cause
de
novo
rheumatic
disease–like
symptoms,
arthritis,
myositis,
vasculitis,
currently
termed
irAEs.
Rheumatic
irAEs
differ
from
classical
diseases
multiple
aspects,
should
be
individualized
based
severity.
Close
collaboration
oncologists
is
critical
preventing
irreversible
organ
damage.
This
review
summarizes
current
regarding
mechanisms
management
focus
vasculitis.
Based
these
findings,
potential
strategies
against
discussed.
Journal of Biomedical Science,
Journal Year:
2023,
Volume and Issue:
30(1)
Published: July 31, 2023
Abstract
Dysregulating
cellular
metabolism
is
one
of
the
emerging
cancer
hallmarks.
Mitochondria
are
essential
organelles
responsible
for
numerous
physiologic
processes,
such
as
energy
production,
metabolism,
apoptosis,
and
calcium
redox
homeostasis.
Although
“Warburg
effect,”
in
which
cells
prefer
aerobic
glycolysis
even
under
normal
oxygen
circumstances,
was
proposed
a
century
ago,
how
mitochondrial
dysfunction
contributes
to
progression
still
unclear.
This
review
discusses
recent
progress
alterations
DNA
(mtDNA)
dynamics
malignant
progression.
Moreover,
we
integrate
possible
regulatory
mechanism
dysfunction–mediated
retrograde
signaling
pathways,
including
mitochondrion-derived
molecules
(reactive
species,
calcium,
oncometabolites,
mtDNA)
stress
response
pathways
(mitochondrial
unfolded
protein
integrated
response)
provide
therapeutic
targets.
Furthermore,
discuss
findings
on
role
mitochondria
immune
function
reveal
impact
tumor
microenvironment
remodeling
immunity.
Targeting
might
improve
immunotherapy.
These
suggest
that
targeting
malignancy
modulating
immunity
be
promising
treatment
strategies
patients
precise
personalized
medicine
against
cancer.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: March 18, 2024
The
potential
of
immune
checkpoint
inhibitors
(ICI)
may
be
limited
in
situations
where
cell
fitness
is
impaired.
Here,
we
show
that
the
efficacy
cancer
immunotherapies
compromised
by
accumulation
senescent
cells
mice
and
context
therapy-induced
senescence
(TIS).
Resistance
to
immunotherapy
associated
with
a
decrease
activation
CD8
T
within
tumors.
Elimination
restores
homeostasis
tumor
micro-environment
(TME)
increases
survival
response
immunotherapy.
Using
single-cell
transcriptomic
analysis,
observe
injection
ABT263
(Navitoclax)
reverses
exacerbated
immunosuppressive
profile
myeloid
TME.
these
also
proliferation
vitro
abrogates
resistance
vivo.
Overall,
our
study
suggests
use
senolytic
drugs
before
ICI
constitute
pharmacological
approach
improve
effectiveness
immunotherapies.
Nature Cell Biology,
Journal Year:
2024,
Volume and Issue:
26(9), P. 1571 - 1584
Published: Aug. 8, 2024
Abstract
Caloric
restriction
and
intermittent
fasting
prolong
the
lifespan
healthspan
of
model
organisms
improve
human
health.
The
natural
polyamine
spermidine
has
been
similarly
linked
to
autophagy
enhancement,
geroprotection
reduced
incidence
cardiovascular
neurodegenerative
diseases
across
species
borders.
Here,
we
asked
whether
cellular
physiological
consequences
caloric
depend
on
metabolism.
We
report
that
levels
increased
upon
distinct
regimens
or
in
yeast,
flies,
mice
volunteers.
Genetic
pharmacological
blockade
endogenous
synthesis
fasting-induced
nematodes
cells.
Furthermore,
perturbing
pathway
vivo
abrogated
lifespan-
healthspan-extending
effects,
as
well
cardioprotective
anti-arthritic
fasting.
Mechanistically,
mediated
these
effects
via
induction
hypusination
translation
regulator
eIF5A.
In
summary,
polyamine–hypusination
axis
emerges
a
phylogenetically
conserved
metabolic
control
hub
for
fasting-mediated
enhancement
longevity.
Cell Reports,
Journal Year:
2024,
Volume and Issue:
43(1), P. 113661 - 113661
Published: Jan. 1, 2024
Myeloid-derived
suppressor
cells
(MDSCs)
impair
antitumor
immune
responses.
Identifying
regulatory
circuits
during
MDSC
development
may
bring
new
opportunities
for
therapeutic
interventions.
We
report
that
the
V-domain
of
T
cell
activation
(VISTA)
functions
as
a
key
enabler
differentiation.
VISTA
deficiency
reduced
STAT3
and
STAT3-dependent
production
polyamines,
which
causally
impaired
mitochondrial
respiration
expansion.
In
both
mixed
bone
marrow
(BM)
chimera
mice
myeloid-specific
conditional
knockout
mice,
significantly
tumor-associated
MDSCs
but
expanded
monocyte-derived
dendritic
(DCs)
enhanced
cell-mediated
tumor
control.
Correlated
expression
arginase-1
(ARG1),
enzyme
supporting
polyamine
biosynthesis,
was
observed
in
multiple
human
cancer
types.
endometrial
cancer,
co-expression
ARG1
on
myeloid
is
associated
with
poor
survival.
Taken
together,
these
findings
unveil
VISTA/polyamine
axis
central
regulator
differentiation
warrant
therapeutically
targeting
this
immunotherapy.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(22)
Published: April 11, 2024
Abstract
The
inflammatory
response
is
a
key
factor
affecting
tissue
regeneration.
Inspired
by
the
immunomodulatory
role
of
spermidine,
an
injectable
double
network
hydrogel
functionalized
with
spermidine
(DN‐SPD)
developed,
where
first
and
second
networks
are
formed
dynamic
imine
bonds
non‐dynamic
photo‐crosslinked
respectively.
single
before
photo‐crosslinking
exhibits
excellent
injectability
thus
can
be
printed
in
situ
to
form
hydrogels.
DN‐SPD
has
demonstrated
desirable
mechanical
properties
adhesion.
More
importantly,
“operando”
comparison
hydrogels
loaded
or
diethylenetriamine
(DETA),
sham
molecule
resembling
shown
similar
physical
properties,
but
quite
different
biological
functions.
Specifically,
outcomes
3
sets
vivo
animal
experiments
demonstrate
that
not
only
reduce
inflammation
caused
implanted
exogenous
biomaterials
reactive
oxygen
species
also
promote
polarization
macrophages
toward
regenerative
M2
phenotype,
DN‐DETA
hydrogel.
Moreover,
immunoregulation
translate
into
faster
more
natural
healing
both
acute
wounds
diabetic
wounds.
Hence,
local
administration
affords
simple
elegant
approach
attenuate
foreign
body
reactions
induced
treat
chronic
refractory
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(20), P. 11242 - 11347
Published: Oct. 9, 2024
Biopsy,
including
tissue
and
liquid
biopsy,
offers
comprehensive
real-time
physiological
pathological
information
for
disease
detection,
diagnosis,
monitoring.
Fluorescent
probes
are
frequently
selected
to
obtain
adequate
on
processes
in
a
rapid
minimally
invasive
manner
based
their
advantages
biopsy.
However,
conventional
fluorescent
have
been
found
show
aggregation-caused
quenching
(ACQ)
properties,
impeding
greater
progresses
this
area.
Since
the
discovery
of
aggregation-induced
emission
luminogen
(AIEgen)
promoted
advancements
molecular
bionanomaterials
owing
unique
high
quantum
yield
(QY)
signal-to-noise
ratio
(SNR),
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Jan. 21, 2025
Metabolic
syndrome
(MetS)
is
a
difficult-to-manage
disease
that
poses
significant
risk
to
human
health.
Here,
we
show
the
supplementation
of
Lactobacillus
reuteri
ZJ617
ameliorates
symptoms
MetS
in
mice
induced
by
high-fat
diet.
L.
modulates
host
metabolism
interacting
with
microbiome,
resulting
production
spermidine
synthesized
microbiota.
serves
as
source
substrates
for
microbiota
synthesize
spermidine,
hence
preventing
decline
bacteria
responsible
production.
Spermidine
treatment
mimics
metabolic
effects
ZJ617,
whereas
pharmacological
inhibition
biosynthesis
abolishes
these
benefits.
Our
findings
reveal
mechanism
which
alleviates
and
provide
support
its
potential
use
probiotic
promoting
Intestinal
commensal
are
closely
associated
authors
mitigates
supplying
substrate
S-adenosylmethionine
spermidine-producing
promote
synthesis
intestine.