Soft Matter,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
The
cellular
Potts
model,
also
known
as
the
Glazier-Graner-Hogeweg
is
a
lattice-based
approach
by
which
biological
tissues
at
level
of
individual
cells
can
be
numerically
studied.
Traditionally,
square
or
hexagonal
underlying
lattice
structure
assumed
for
two-dimensional
systems,
and
this
to
introduce
artifacts
in
dynamics
model
tissues.
That
is,
on
regular
lattices,
assume
shapes
that
are
dictated
symmetries
lattice.
Here,
we
developed
variant
method
applied
broad
class
(ir)regular
lattices.
We
show
an
irregular
deriving
from
fluid-like
configuration,
two
types
removed.
further
report
transition
between
disordered
solid-like
hexagonally
ordered
phase
present
monodisperse
confluent
function
their
surface
tension.
This
shows
hallmarks
first-order
different
glass/jamming
transitions
commonly
reported
vertex
active
Voronoi
models.
emphasize
analyzing
distribution
shape
parameters
found
our
state
space.
Our
analysis
provides
useful
reference
future
study
epithelia
using
model.
npj Biological Physics and Mechanics.,
Journal Year:
2025,
Volume and Issue:
2(1)
Published: Feb. 4, 2025
Abstract
The
cancer
metastatic
cascade
includes
a
series
of
mechanical
barrier-crossing
events,
involving
the
physical
movement
cells
from
their
primary
location
to
distant
organ.
This
review
describes
changes
that
influence
tumour
proliferation,
progression,
and
metastasis.
We
identify
potential
signatures
at
every
step
discuss
some
latest
mechanobiology-based
therapeutic
interventions
highlight
importance
interdisciplinary
approaches
in
diagnosis
treatment.
Bulletin of Mathematical Biology,
Journal Year:
2025,
Volume and Issue:
87(3)
Published: Feb. 12, 2025
Abstract
Extracellular
matrix
(ECM)
is
a
key
component
of
the
cellular
microenvironment
and
critical
in
multiple
disease
developmental
processes.
Representing
ECM
cell-ECM
interactions
challenging
multiscale
problem
as
they
span
molecular-level
details
to
tissue-level
dynamics.
While
several
computational
frameworks
exist
for
modeling,
often
focus
on
very
detailed
modeling
individual
fibers
or
represent
only
single
aspect
ECM.
Using
PhysiCell
agent-based
platform,
we
developed
framework
intermediate
detail
with
ability
capture
bidirectional
interactions.
We
small
region
ECM,
an
element,
three
variables
describing
its
local
microstructure:
anisotropy,
density,
overall
fiber
orientation.
To
spatially
model
use
array
elements.
Cells
remodel
microstructure
turn,
impacts
motility.
demonstrate
utility
this
reusability
core
interaction
through
examples
invasion,
wound
healing,
basement
membrane
degradation,
leader-follower
collective
migration.
Despite
relative
simplicity
framework,
it
able
broad
range
interest
community.
Furthermore,
representing
are
accessible
simple
programming
interfaces.
This
allows
them
impact
cell
behaviors,
such
proliferation
death,
without
requiring
custom
code
each
interaction,
particularly
PhysiCell’s
grammar,
enabling
rapid
diverse
cell-matrix
biology.
make
available
free
open
source
software
package
at
https://github.com/PhysiCell-Models/collective-invasion
.
Frontiers in Cell and Developmental Biology,
Journal Year:
2025,
Volume and Issue:
12
Published: Jan. 6, 2025
Many
mammalian
cells,
including
endothelial
cells
and
fibroblasts,
align
elongate
along
the
orientation
of
extracellular
matrix
(ECM)
fibers
in
a
gel
when
cultured
vitro.
During
cell
elongation,
clusters
focal
adhesions
(FAs)
form
near
poles
elongating
cells.
FAs
are
mechanosensitive
that
grow
under
mechanical
tension
exerted
by
cells'
pulling
on
ECM
shrink
is
released.
In
this
study,
we
use
mathematical
modeling
to
study
hypothesis
reciprocity
between
sufficient
for
directing
shape
changes
orientation.
We
show
preferentially
stabilized
fibers,
where
can
generate
higher
than
directions
perpendicular
fibers.
present
hybrid
computational
model
coupling
three
approaches:
first,
cellular
Potts
(CPM)
describes
an
individual
contractile
cell;
second,
molecular
dynamics
(MD)
represent
as
network
cross-linked,
deformable
fibers;
third,
set
ordinary
differential
equations
(ODEs)
cell's
FAs,
terms
balance
assembly
mechanoresponsive
disassembly.
The
resulting
shows
suffices
stiffness-dependent
spreading,
local
remodeling,
ECM-alignment-dependent
elongation.
These
combined
effects
explain
how
morphology
influenced
structure
mechanics.
Life,
Journal Year:
2024,
Volume and Issue:
14(6), P. 751 - 751
Published: June 12, 2024
Rheumatoid
arthritis
(RA)
is
a
systemic
autoimmune
disorder
caused
by
inflammation
of
cartilaginous
diarthrodial
joints
that
destroys
and
cartilage,
resulting
in
synovitis
pannus
formation.
Timely
detection
effective
management
RA
are
pivotal
for
mitigating
inflammatory
consequences,
potentially
influencing
disease
progression.
Nuclear
medicine
using
radiolabeled
targeted
vectors
presents
promising
avenue
diagnosis
response
to
treatment
assessment.
Radiopharmaceutical
such
as
technetium-99m
(
Current Issues in Molecular Biology,
Journal Year:
2024,
Volume and Issue:
46(8), P. 9179 - 9214
Published: Aug. 22, 2024
The
recellularization
of
tissues
after
decellularization
is
a
relatively
new
technology
in
the
field
tissue
engineering
(TE).
Decellularization
involves
removing
cells
from
or
organ,
leaving
only
extracellular
matrix
(ECM).
This
can
then
be
recellularized
with
to
create
functional
organs.
first
significant
mention
decellularized
traced
research
conducted
early
2000s.
One
landmark
studies
this
was
published
2008
by
Ott,
where
researchers
demonstrated
rat
heart
cardiac
cells,
resulting
organ
capable
contraction.
Since
then,
other
important
have
been
published.
These
paved
way
for
widespread
application
TE,
demonstrating
potential
ECM
serve
as
scaffold
regenerating
tissues.
Thus,
although
concept
initially
explored
previous
decades,
these
2000s
marked
major
turning
point
development
and
practical
article
reviews
historical
advances
limitations
TE
over
last
two
decades.
Gigabyte,
Journal Year:
2024,
Volume and Issue:
2024
Published: Oct. 16, 2024
The
extracellular
matrix,
composed
of
macromolecules
like
collagen
fibres,
provides
structural
support
to
cells
and
acts
as
a
barrier
that
metastatic
degrade
spread
beyond
the
primary
tumour.
While
agent-based
frameworks,
such
PhysiCell,
can
simulate
spatial
dynamics
tumour
evolution,
they
only
implement
circles
(2D)
or
spheres
(3D).
To
model
matrix
network
we
require
new
type
agent
represented
by
line
segments
cylinders
Here,
present
PhysiMeSS,
an
addon
introducing
describe
fibres
their
physical
interactions
with
other
fibres.
PhysiMeSS
implementation
is
available
at
https://github.com/PhysiMeSS/PhysiMeSS
in
official
PhysiCell
repository.
We
provide
examples
describing
possibilities
this
framework.
This
tool
may
help
tackle
important
biological
questions,
diseases
linked
dysregulation
processes
leading
cancer
metastasis.