Frontiers in Cellular and Infection Microbiology,
Journal Year:
2024,
Volume and Issue:
14
Published: Nov. 29, 2024
Advanced
age
is
a
primary
risk
factor
for
adverse
COVID-19
outcomes,
potentially
attributed
to
immunosenescence
and
dysregulated
inflammatory
responses.
In
the
post-pandemic
era,
with
containment
measures
lifted,
elderly
remain
particularly
susceptible,
highlighting
need
intensified
focus
on
immune
health
management.
JCI Insight,
Journal Year:
2025,
Volume and Issue:
10(2)
Published: Jan. 22, 2025
Autoimmune
uveitis
(AU)
is
a
sight-threatening
ocular
autoimmune
disorder
that
often
manifests
as
retinal
vasculitis.
Increased
neutrophil
infiltration
around
vessels
has
been
reported
during
the
progression
of
AU,
while
how
they
function
not
fully
recognized.
Neutrophil
extracellular
traps
(NETs),
produced
by
activated
neutrophils,
have
suggested
to
be
detrimental
in
diseases.
Here,
we
found
NETs
were
elevated
patients
with
active
and
this
was
verified
an
experimental
AU
(EAU)
mouse
model.
Depletion
neutrophils
or
degradation
deoxyribonuclease-I
(DNase
I)
could
decrease
CD4+
effector
T
cell
(Teff)
retina
spleen
alleviate
EAU.
Moreover,
expression
adhesion
molecules,
selectin,
antigen-presenting
molecules
EAU
microvascular
endothelial
cells
(RMECs)
cocultured
NETs.
The
stimulated
RMECs
further
facilitated
adhesion,
activation,
differentiation
into
Teffs.
Mechanistically,
trigger
RMEC
activation
hastening
senescence
through
cyclic
GMP-AMP
synthase
(cGAS)/stimulator
interferon
genes
(STING)
pathway.
Slowing
down
inhibiting
cGAS/STING
pathway
reduces
cells.
These
results
suggest
deleterious
role
AU.
Targeting
would
offer
effective
therapeutic
method.
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(3), P. 1464 - 1464
Published: Jan. 25, 2024
Nowadays,
acute
respiratory
distress
syndrome
(ARDS)
still
has
a
high
mortality
rate,
and
the
alleviation
treatment
of
ARDS
remains
major
research
focus.
There
are
various
causes
ARDS,
among
which
pneumonia
non-pulmonary
sepsis
most
common.
Trauma
blood
transfusion
can
also
cause
ARDS.
In
aggregation
infiltration
neutrophils
in
lungs
have
great
influence
on
development
disease.
Neutrophils
regulate
inflammatory
responses
through
pathways,
release
neutrophil
extracellular
traps
(NETs)
is
considered
to
be
one
important
mechanisms.
NETs
mainly
composed
DNA,
histones,
granuloproteins,
all
mediate
downstream
signaling
pathways
that
activate
responses,
generate
immune
clots,
damage
surrounding
tissues.
At
same
time,
components
promote
formation
NETs,
thus
forming
vicious
cycle
continuously
aggravates
progression
associated
with
cytokine
storms
balance.
Since
DNA
main
component
DNase
I
viable
drug
for
removing
NETs.
Other
therapeutic
methods
inhibit
worthy
further
exploration.
This
review
discusses
mechanism
Understanding
association
between
may
help
develop
new
perspectives
International Journal of Molecular Sciences,
Journal Year:
2024,
Volume and Issue:
25(7), P. 3983 - 3983
Published: April 3, 2024
Neutrophil
extracellular
traps
(NETs),
composed
of
DNA,
histones,
and
antimicrobial
proteins,
are
released
by
neutrophils
in
response
to
pathogens
but
also
recognized
for
their
involvement
a
range
pathological
processes,
including
autoimmune
diseases,
cancer,
cardiovascular
diseases.
This
review
explores
the
intricate
roles
NETs
different
conditions
such
as
thrombosis,
atherosclerosis,
myocardial
infarction,
COVID-19,
particularly
pathogenesis
abdominal
aortic
aneurysms.
We
elucidate
mechanisms
underlying
NET
formation
function,
provide
foundational
understanding
biological
significance,
highlight
contribution
inflammation,
tissue
remodeling
vascular
disease.
Therapeutic
strategies
preventing
release
compared
with
approaches
targeting
components
formed
Current
limitations
potential
avenues
clinical
translation
anti-NET
treatments
discussed.
European Journal of Immunology,
Journal Year:
2024,
Volume and Issue:
54(11)
Published: Aug. 27, 2024
Abstract
Infections
are
one
of
the
most
significant
healthcare
and
economic
burdens
across
world
as
underscored
by
recent
coronavirus
pandemic.
Moreover,
with
increasing
incidence
antimicrobial
resistance,
there
is
an
urgent
need
to
better
understand
host–pathogen
interactions
design
effective
treatment
strategies.
The
complement
system
a
key
arsenal
host
defense
response
pathogens
bridges
both
innate
adaptive
immunity.
However,
in
contest
between
mechanisms,
not
always
victorious.
Pathogens
have
evolved
several
approaches,
including
co‐opting
regulators
evade
complement‐mediated
killing.
Furthermore,
deficiencies
proteins,
genetic
therapeutic,
can
lead
inefficient
pathogen
eradication,
rendering
more
susceptible
certain
infections.
On
other
hand,
overwhelming
infection
provoke
fulminant
activation
uncontrolled
inflammation
potentially
fatal
tissue
organ
damage.
This
review
presents
overview
critical
aspects
complement‐pathogen
during
discusses
perspectives
on
designing
therapies
mitigate
dysfunction
limit
injury.
Frontiers in Immunology,
Journal Year:
2025,
Volume and Issue:
16
Published: April 30, 2025
Epidermolysis
Bullosa
Acquisita
(EBA)
is
an
autoimmune
blistering
dermatosis
characterized
by
autoantibodies
(AAbs)
against
type
VII
collagen
(COL7)
located
at
the
dermal
epidermal
junction
(DEJ).
Local
complement
activation
drives
C5a
generation
associated
with
neutrophil
recruitment
and
resulting
in
skin
lesions
inflammation.
Here
we
tested
impact
of
C5a/C5adesArg,
C5
or
combined
alternative
pathway
(AP)
targeting
on
disease
development
inflammation
a
preclinical
mouse
model
mimicking
effector
phase
EBA.
C57BL/6
mice
were
treated
subcutaneously
purified
rabbit
anti-mouse-COL7
IgG
presence
IgG1
mAbs
directed
murine
C5a/C5adesArg
(M031),
(mBB5.1),
bifunctional
protein
comprising
mBB5.1
fused
to
active
fragment
AP
inhibitor
factor
H
(M014)
isotype
control
mAb.
Formation
was
evaluated
12
days
every
other
day.
On
day
12,
DEJ
separation,
AAb
C3b
deposition
infiltration
assessed.
Isotype
IgG1-treated
developed
first
4
peaking
12.
Prophylactic
treatment
either
M031
M014
markedly
reduced
lesions,
dermal/epidermal
separation
recruitment.
Surprisingly,
AP/C5
inhibition
but
not
C5a/C5adesArg-targeting
setting
therapeutic
treatment.
affected
Importantly,
direct
comparison
isolated
vs.
revealed
that
earlier
more
pronounced
than
mBB5.1.
Our
findings
identify
C5/AP
as
novel
option
for
dermatoses.