Discovery of quorum sensing inhibitors against Pseudomonas aeruginosa from Aspergillus sp. NB12
Bioorganic Chemistry,
Год журнала:
2025,
Номер
156, С. 108230 - 108230
Опубликована: Янв. 30, 2025
Язык: Английский
The Role of Immune Defense in Serratia marcescens Nosocomial Infections
ARO-The Scientific Journal of Koya University,
Год журнала:
2025,
Номер
13(1), С. 34 - 41
Опубликована: Фев. 1, 2025
Developing
resistance
mechanisms
leads
to
various
nosocomial
infections
caused
by
opportunistic
bacteria.
Serratia
marcescens
are
well
known
be
and
equipped
with
an
armory
of
virulence
factors
against
host
immune
response.
The
study
aims
detect
the
defense
in
patients
infected
multidrug-resistant
S.
marcescens.
includes
132
clinical
samples,
including
burn,
wound,
otitis
media,
urinary
tract
infection
(UTI)
at
several
hospitals
Baghdad,
Iraq.
All
isolates
identified
cultivation
on
MacConkey
agar,
nutrient
blood
followed
biochemical
tests
assessment
VITEK
2
compact
system.
tested
for
antibiotic
susceptibility
tests,
interleukin-12
(IL12)
levels,
neutrophil
ability
phagocytosis,
complement
C3
C4
levels.
Out
120
positive
cultures,
six
as
urine
samples
most
isolated
source
a
higher
level
was
noticed
ampicillin
cefotaxime
(100%),
whereas
lower
is
imipenem.
Stimulation
(p
꞊
0.005)
provided
significant
increase
IL-12
production.
stimulated
neutrophil’s
phagocytosis
process
compared
control.
interplay
role
influences
its
pathogenesis,
resistance,
response,
particularly
involving
neutrophils
IL-12.
Understanding
these
interactions
crucial
developing
effective
therapeutic
strategies.
Язык: Английский
Comparison between the effect of gentamicin and purified Lactobacillus salivarius exopolysaccharides on the biofilm formation and Pseudomonas aeruginosa Rh1I gene expression
Gene Reports,
Год журнала:
2025,
Номер
unknown, С. 102164 - 102164
Опубликована: Фев. 1, 2025
Язык: Английский
Hybrid Molecules of Benzothiazole and Hydroxamic Acid as Dual-Acting Biofilm Inhibitors with Antibacterial Synergistic Effect against Pseudomonas aeruginosa Infections
Journal of Medicinal Chemistry,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 13, 2025
The
ubiquitous
opportunistic
pathogen
Pseudomonas
aeruginosa
(P.
aeruginosa)
causes
biofilm-associated
drug-resistant
infections
that
often
lead
to
treatment
failure.
Targeting
the
bacterium's
quorum
sensing
(QS)
and
iron
homeostasis
presents
a
promising
strategy
combat
biofilm
formation.
This
study
synthesized
benzothiazole-conjugated
hydroxamic
acid
derivatives
as
dual-acting
inhibitors,
compound
JH21
was
identified
hit
with
potent
submicromolar
inhibitory
activity
(IC50
=
0.4
μM).
Further
mechanistic
studies
demonstrated
not
only
production
of
virulence
decreased
through
mainly
inhibiting
QS
system
but
also
competed
for
high-affinity
siderophore
pyoverdine,
inducing
deficiency
biofilm.
Moreover,
significantly
enhanced
efficacy
tobramycin
ciprofloxacin
by
200-
1000-fold,
respectively,
in
mouse
wound
infection
model.
These
results
emphasized
feasibility
inhibitors
against
resistant
P.
potential
novel
antibacterial
synergist.
Язык: Английский
Deciphering Multidrug-Resistant Pseudomonas aeruginosa: Mechanistic Insights and Environmental Risks
Toxics,
Год журнала:
2025,
Номер
13(4), С. 303 - 303
Опубликована: Апрель 12, 2025
The
rise
of
multidrug-resistant
(MDR)
Pseudomonas
aeruginosa
(P.
aeruginosa)
presents
a
significant
challenge
to
clinical
treatment
and
environmental
risks.
This
review
delves
into
the
complex
mechanisms
underlying
MDR
development
in
P.
aeruginosa,
such
as
genetic
mutations,
horizontal
gene
transfer
(HGT),
interaction
between
virulence
factors
resistance
genes.
It
evaluates
current
detection
methods,
from
traditional
bacteriology
advanced
molecular
techniques,
emphasizing
need
for
rapid
accurate
diagnostics.
also
examines
therapeutic
strategies,
including
broad-spectrum
antibiotics,
novel
drug
candidates,
combination
therapies,
innovative
approaches
like
RNA
interference,
CRISPR-Cas9
editing,
bridge
RNA-guided
editing.
Importantly,
this
highlights
distribution,
migration,
risks
underscoring
its
adaptability
diverse
environments.
concludes
by
stressing
necessity
continued
research
antimicrobial
resistance,
advocating
an
integrated
approach
that
combines
genomics,
practice,
considerations
devise
solutions
preserve
antibiotic
efficacy.
Язык: Английский