Staphylococcus aureus: A Review of the Pathogenesis and Virulence Mechanisms
Rahima Touaitia,
No information about this author
Assia Mairi,
No information about this author
Nasir A. Ibrahim
No information about this author
et al.
Antibiotics,
Journal Year:
2025,
Volume and Issue:
14(5), P. 470 - 470
Published: May 6, 2025
Staphylococcus
aureus
is
a
formidable
human
pathogen
responsible
for
infections
ranging
from
superficial
skin
lesions
to
life-threatening
systemic
diseases.
This
review
synthesizes
current
knowledge
on
its
pathogenesis,
emphasizing
colonization
dynamics,
virulence
mechanisms,
biofilm
formation,
and
antibiotic
resistance.
By
analyzing
studies
PubMed,
Scopus,
Web
of
Science,
we
highlight
the
pathogen’s
adaptability,
driven
by
surface
adhesins
(e.g.,
ClfB,
SasG),
secreted
toxins
PVL,
TSST-1),
metabolic
flexibility
in
iron
acquisition
amino
acid
utilization.
Nasal,
skin,
oropharyngeal
are
reservoirs
invasive
infections,
with
persistence
horizontal
gene
transfer
exacerbating
antimicrobial
resistance,
particularly
methicillin-resistant
S.
(MRSA).
The
underscores
clinical
challenges
multidrug-resistant
strains,
including
vancomycin
resistance
decolonization
strategies’
failure
target
single
anatomical
sites.
Key
discussions
address
host–microbiome
interactions,
immune
evasion
tactics,
limitations
therapies.
Future
directions
advocate
novel
anti-virulence
therapies,
multi-epitope
vaccines,
AI-driven
diagnostics
combat
evolving
Strengthening
global
surveillance
interdisciplinary
collaboration
critical
mitigating
public
health
burden
aureus.
Language: Английский
Aloe vera Phytochemicals as Potential Antibacterial Agents Against Multidrug‐Resistant Pseudomonas aeruginosa
International Journal of Microbiology,
Journal Year:
2025,
Volume and Issue:
2025(1)
Published: Jan. 1, 2025
Multidrug‐resistant
(MDR)
Pseudomonas
aeruginosa
poses
a
global
challenge
due
to
its
high
virulence
and
resistance
mechanisms,
which
lead
persistent
infections.
This
study
explored
the
efficacy
of
active
compounds
Aloe
vera
as
alternative
treatments
against
MDR
P.
isolates.
A
total
283
isolates
were
obtained
from
sputum
throat
samples.
The
antibiotic
these
was
evaluated
several
classes.
minimum
inhibitory
concentration
(MIC)
A.
–derived
phytochemicals
individually
assessed;
lupeol
found
be
potent
phytochemical
with
lowest
MIC
(125
μ
g/mL).
physicochemical
properties
toxicity
further
using
SwissADME,
StopTox,
Protox
3.0.
Genetic
analysis
identified
mutations
in
AmpC
protein
key
factor
resistance;
consequently,
molecular
docking
studies
examined
interactions
between
AmpC.
Most
exhibited
pronounced
resistance,
while
demonstrated
favorable
pharmacological
strong
binding
amino
acids
Of
phytochemicals,
aloe‐emodin
showed
most
promising
antibacterial
activity.
These
findings
underscore
potential
for
clinical
application
combating
drug‐resistant
bacterial
Language: Английский