How does the tubulin code facilitate directed cell migration?
Miguel Marques Simoes-da-Silva,
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Marin Barišić
No information about this author
Biochemical Society Transactions,
Journal Year:
2025,
Volume and Issue:
53(01)
Published: Feb. 21, 2025
Besides
being
a
component
of
the
cytoskeleton
that
provides
structural
integrity
to
cell,
microtubules
also
serve
as
tracks
for
intracellular
transport.
As
building
units
mitotic
spindle,
distribute
chromosomes
during
cell
division.
By
distributing
organelles,
vesicles,
and
proteins,
they
play
pivotal
role
in
diverse
cellular
processes,
including
migration,
which
reorganize
facilitate
polarization.
Structurally,
are
built
up
α/β-tubulin
dimers,
consist
various
tubulin
isotypes
undergo
multiple
post-translational
modifications
(PTMs).
These
PTMs
allow
differentiate
into
functional
subsets,
influencing
associated
processes.
This
text
explores
current
understanding
roles
particularly
detyrosination
acetylation,
their
implications
human
diseases.
Language: Английский
CCSer2 gates dynein activity at the cell periphery
The Journal of Cell Biology,
Journal Year:
2025,
Volume and Issue:
224(6)
Published: April 22, 2025
Cytoplasmic
dynein-1
(dynein)
is
a
microtubule-associated,
minus
end–directed
motor
that
traffics
hundreds
of
different
cargos.
Dynein
must
discriminate
between
cargos
and
traffic
them
at
the
appropriate
time
from
correct
cellular
region.
How
dynein’s
trafficking
activity
regulated
in
or
space
remains
poorly
understood.
Here,
we
identify
CCSer2
as
first
known
protein
to
gate
dynein
spatial
dimension.
promotes
migration
developing
zebrafish
primordium
cells,
macrophages,
cultured
human
cells
by
facilitating
are
acted
on
peripherally
localized
dynein.
Our
data
suggest
disfavors
interaction
its
regulator
Ndel1
cell
edge,
resulting
activation.
These
findings
support
model
where
specificity
achieved
localization
proteins
trigger
Ndel1’s
release
We
propose
defines
broader
class
activate
distinct
microenvironments
via
regulating
Ndel1–dynein
interaction.
Language: Английский
Mechanisms and Therapeutic Strategies for Minority Cell‐Induced Paclitaxel Resistance and Tumor Progression Mediated by Mechanical Forces
Advanced Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 24, 2025
Abstract
Chemotherapy
remains
a
prevalent
strategy
in
cancer
therapy;
however,
the
emergence
of
drug
resistance
poses
considerable
challenge
to
its
efficacy.
Most
arises
from
accumulation
genetic
mutations
minority
resistant
cells.
The
mechanisms
underlying
and
progression
these
minority‐resistant
cells
(MRCs)
remain
poorly
understood.
This
study
employs
force‐induced
remnant
magnetization
spectroscopy
(FIRMS)
alongside
various
biological
investigations
reveal
mechanical
pathways
for
MRCs
fostering
tumor
progression.
findings
show
that
Paclitaxel‐resistant
have
enhanced
properties.
These
can
transmit
high‐intensity
forces
surrounding
sensitive
(SCs)
through
force
transducer,
Merlin.
transmission
facilitates
assimilation
SCs,
subsequently
strengthening
contraction
adhesion
process
is
termed
“mechano‐assimilation,”
which
accelerates
development
Interestingly,
disturbances
reductions
mechano‐assimilation
within
tumors
restore
sensitivity
Paclitaxel
both
vitro
vivo.
provides
preliminary
evidence
highlighting
contribution
malignancy,
mediated
interactions.
It
also
establishes
foundation
future
research
focused
on
integrating
factors
into
innovative
therapies.
Language: Английский
Mechanosensitive FHL2 tunes endothelial function
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 17, 2024
Abstract
Endothelial
tissues
are
essential
mechanosensors
in
the
vasculature
and
facilitate
adaptation
to
various
blood
flow-induced
mechanical
cues.
Defects
endothelial
mechanoresponses
can
perturb
tissue
remodelling
functions
leading
cardiovascular
disease
progression.
In
this
context,
precise
mechanisms
of
contributing
normal
diseased
functioning
remain
elusive.
Here,
we
sought
uncover
how
flow-mediated
transcriptional
regulation
drives
healthy
atherosclerotic-prone
tissues.
Using
bulk
RNA
sequencing,
identify
novel
mechanosensitive
genes
response
unidirectional
flow
(UF)
athero-prone
disturbed
(DF).
We
find
that
transcription
as
well
protein
expression
Four-and-a-half
LIM
2
(FHL2)
enriched
DF
both
vitro
vivo
.
then
demonstrate
exogenous
FHL2
is
necessary
sufficient
drive
discontinuous
adherens
junction
morphology
increased
permeability.
This
phenotype
requires
force-sensitive
binding
actin.
turn,
force-dependent
localisation
stress
fibres
promotes
microtubule
dynamics
release
RhoGEF,
GEF-H1,
activate
Rho-ROCK
pathway.
Thus,
unravelled
a
mechanochemical
feedback
wherein
hypercontractility.
misregulated
mechanoresponse
creates
highly
permeable
tissues,
depicting
classic
hallmarks
atherosclerosis
Overall,
highlight
crucial
for
force-sensitivity
tuning
multi-scale
mechanoresponses.
Language: Английский
Spatiotemporal dissection of collective cell migration and tissue morphogenesis during development by optogenetics
Seminars in Cell and Developmental Biology,
Journal Year:
2024,
Volume and Issue:
166, P. 36 - 51
Published: Dec. 26, 2024
Collective
cell
migration
and
tissue
morphogenesis
play
a
variety
of
important
roles
in
the
development
many
species.
Tissue
often
generates
mechanical
forces
that
alter
shapes
arrangements,
resembling
collective
migration-like
behaviors.
Genetic
methods
have
been
widely
used
to
study
its
like
behavior,
advancing
our
understanding
these
processes
during
development.
However,
growing
body
research
shows
is
not
simple
behavior
but
combined
with
other
cellular
processes.
In
addition,
different
surrounding
environments
can
also
influence
migrating
cells,
further
complicating
Due
complexity
developmental
tissues,
traditional
genetic
approaches
encounter
challenges
limitations.
Thus,
some
spatiotemporal
control
become
urgent
dissecting
Optogenetics
method
combines
optics
genetics,
providing
perfect
strategy
for
spatiotemporally
controlling
corresponding
protein
activity
subcellular,
or
levels.
this
review,
we
introduce
basic
mechanisms
underlying
optogenetic
tools.
Then,
demonstrate
how
applied
vivo
dissect
Additionally,
describe
promising
field.
Together,
review
will
guide
facilitate
future
studies
by
optogenetics.
Language: Английский