Microfluidic Constriction-Based Mechanoprofiling of Alginate Microgels and Bladder Cancer Cells
Published: Jan. 1, 2025
Language: Английский
Revealing Mechanopathology Induced by Dengue NS1 Using Organ Chips and Single-Cell Force Spectroscopy
ACS Biomaterials Science & Engineering,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 25, 2025
Capillary
leakage
is
a
hallmark
of
severe
dengue,
yet
its
precise
mechanisms
remain
elusive.
Emerging
evidence
highlights
the
dengue
virus's
targeting
mechanically
active
endothelial
cells
as
key
contributor
to
shock
syndrome.
The
viral
nonstructural
protein
1
(NS1)
has
been
identified
central
player,
disrupting
integrity
and
inducing
vascular
hyperpermeability
independently
pro-inflammatory
cytokines.
This
study
provides
direct
assessment
NS1-induced
pathology
by
combining
single-cell
force
spectroscopy
microvessel-on-a-chip
platform.
We
demonstrate
that
NS1
significantly
alters
cell
mechanics,
reducing
stiffness
compromising
junctional
integrity,
thereby
directly
linking
these
mechanical
alterations
dysfunction.
These
findings
establish
framework
for
understanding
mechano-pathology
offer
platform
developing
targeted
therapeutic
strategies
mitigate
disease
outcomes.
Language: Английский
Aging-related changes in the mechanical properties of single cells
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(12), P. e32974 - e32974
Published: June 1, 2024
Mechanical
properties,
along
with
biochemical
and
molecular
play
crucial
roles
in
governing
cellular
function
homeostasis.
Cellular
mechanics
are
influenced
by
various
factors,
including
physiological
pathological
states,
making
them
potential
biomarkers
for
diseases
aging.
While
several
methods
such
as
AFM,
particle-tracking
microrheology,
optical
tweezers/stretching,
magnetic
tweezers/twisting
cytometry,
microfluidics,
micropipette
aspiration
have
been
widely
utilized
to
measure
the
mechanical
properties
of
single
cells,
our
understanding
how
aging
affects
these
remains
limited.
To
fill
this
knowledge
gap,
we
provide
a
brief
overview
commonly
used
single-cell
properties.
We
then
delve
into
effects
on
different
cell
types.
Finally,
discuss
importance
studying
viscous
viscoelastic
well
induced
stressors
gain
deeper
process
aging-related
diseases.
Language: Английский