Theranostics,
Journal Year:
2021,
Volume and Issue:
11(12), P. 5911 - 5925
Published: Jan. 1, 2021
Poor
healing
response
after
rotator
cuff
reconstruction
is
multifactorial,
with
the
inflammatory
microenvironment
and
deficiency
of
stem
cell
differentiation
factors
at
lesion
site
being
most
relevant.
However,
there
a
lack
effective
tissue
engineering
strategies
that
can
simultaneously
exert
anti-inflammatory
pro-differentiation
effects
to
promote
healing.
Methods:
In
this
study,
we
synthesized
characterized
novel
active
drug
delivery
vector
successfully
overcame
challenge
simultaneous
high-efficiency
loading
controlled
release
Mg2+
curcumin.
The
composite
hydrogel
were
evaluated
in
vitro
vivo.
Moreover,
tendon-to-bone
interface
was
studied
by
histology,
immunofluorescence,
biomechanical
tests.
Results:
exhibited
excellent
biocompatibility
injectability,
good
adhesiveness,
rapid
self-healing.
released
curcumin
showed
obvious
antioxidation
effects,
which
protected
cells
tendon
matrix.
Furthermore,
promoted
aggregation
chondrogenesis.
tests
histological
results
rat
tear
model
8
weeks
surgery
indicated
significantly
enhanced
Conclusions:
mediated
sustained
situ
effectively
via
effects.
Therefore,
offers
significant
promise
for
repair.
Materials,
Journal Year:
2018,
Volume and Issue:
11(7), P. 1116 - 1116
Published: June 29, 2018
Tissue
engineering
is
a
promising
approach
to
repair
tendon
and
muscle
when
natural
healing
fails.
Biohybrid
constructs
obtained
after
cells’
seeding
culture
in
dedicated
scaffolds
have
indeed
been
considered
as
relevant
tools
for
mimicking
native
tissue,
leading
better
integration
vivo.
They
can
also
be
employed
perform
advanced
vitro
studies
model
the
cell
differentiation
or
regeneration
processes.
In
this
review,
we
report
analyze
different
solutions
proposed
literature,
reconstruction
of
tendon,
muscle,
myotendinous
junction.
classically
rely
on
three
pillars
tissue
engineering,
i.e.,
cells,
biomaterials
environment
(both
chemical
physical
stimuli).
We
chosen
present
biomimetic
bioinspired
strategies
based
understanding
structure/functions/properties
interest.
For
each
sorted
publications
according
an
increasing
degree
complexity
materials’
shape
manufacture.
their
biological
mechanical
performances,
observed
vivo
available.
Although
there
no
consensus
gold
standard
technique
reconstruct
these
musculo-skeletal
tissues,
reader
find
ways
progress
field
understand
recent
history
choice
materials,
from
collagen
polymer-based
matrices.
Advanced Healthcare Materials,
Journal Year:
2019,
Volume and Issue:
8(7)
Published: Feb. 6, 2019
Fiber-based
approaches
hold
great
promise
for
tendon
tissue
engineering
enabling
the
possibility
of
manufacturing
aligned
hydrogel
filaments
that
can
guide
collagen
fiber
orientation,
thereby
providing
a
biomimetic
micro-environment
cell
attachment,
migration,
and
proliferation.
In
this
study,
3D
system
composed
cell-laden,
highly
yarns
is
designed
obtained
via
wet
spinning
in
order
to
reproduce
morphology
structure
fascicles.
A
bioink
alginate
gelatin
methacryloyl
(GelMA)
optimized
loaded
with
human
bone
morrow
mesenchymal
stem
cells
(hBM-MSCs).
The
produced
scaffolds
are
subjected
mechanical
stretching
recapitulate
strains
occurring
native
tissue.
Stem
differentiation
promoted
by
addition
morphogenetic
protein
12
(BMP-12)
culture
medium.
orientation
fibers
combined
stimulation
results
preferential
longitudinal
demonstrates
enhanced
type
I
III
expression.
Additionally,
combination
biochemical
stimulations
promotes
expression
specific
tenogenic
markers,
signatures
efficient
towards
tendon.
suggest
proposed
cell-laden
be
used
regeneration.
Advanced Functional Materials,
Journal Year:
2019,
Volume and Issue:
29(38)
Published: Aug. 6, 2019
Abstract
Mimicking
the
hierarchically
anisotropic
structure
and
excellent
mechanical
properties
of
natural
tissues,
such
as
tendons
ligaments,
using
biomaterials
is
challenging.
Despite
recent
achievements
with
hydrogels,
limitations
remain
because
difficulties
in
achieving
both
structural
characteristics
simultaneously.
A
simple
approach
for
fabricating
hybrid
hydrogels
a
superior
that
are
reminiscent
or
ligaments
proposed.
Alginate–polyacrylamide
double‐network
(DN)
incorporated
high
aspect
ratio
mesoporous
silica
microparticles
stretched
fixed
via
subsequent
drying
ionic
crosslinking
to
achieve
multiscale
structures
composed
an
anisotropically
aligned
polymer
network
embedded
microparticles.
The
can
be
further
controlled
by
degree
stretching,
quantities,
functional
groups
inorganic
microparticles,
types
cations.
reswelling
results
water
content
(>80%)
similar
while
strength,
modulus,
toughness
maintained.
optimized
hydrogel
exhibits
tensile
modulus
7.2
MPa,
strength
1.3
1.4
MJ
m
−3
even
swollen
state,
which
451‐,
27‐,
2.2
times
higher
than
observed
non‐swollen
tough
DN
hydrogel.
This
study
suggests
new
strategy
develop
artificial
ligaments.
Bioactive Materials,
Journal Year:
2021,
Volume and Issue:
6(8), P. 2491 - 2510
Published: Feb. 6, 2021
Tendon/ligament-to-bone
healing
poses
a
formidable
clinical
challenge
due
to
the
complex
structure,
composition,
cell
population
and
mechanics
of
interface.
With
rapid
advances
in
tissue
engineering,
variety
strategies
including
advanced
biomaterials,
bioactive
growth
factors
multiple
stem
lineages
have
been
developed
facilitate
this
Given
important
role
structure-function
relationship,
review
begins
with
brief
description
enthesis
structure
composition.
Next,
biomimetic
biomaterials
decellularized
extracellular
matrix
scaffolds
synthetic-/natural-origin
are
critically
examined.
Then,
key
roles
combination,
concentration
location
various
application
emphasized.
After
that,
sources
culture
systems
described.
At
last,
we
discuss
unmet
needs
existing
challenges
ideal
for
tendon/ligament-to-bone
regeneration
highlight
emerging
field.
Tissue Engineering Part A,
Journal Year:
2017,
Volume and Issue:
23(15-16), P. 859 - 872
Published: March 23, 2017
Tissue
engineering
is
an
attractive
strategy
for
tendon/ligament-to-bone
interface
repair.
The
structure
and
extracellular
matrix
composition
of
the
are
complex
allow
a
gradual
mechanical
stress
transfer
between
tendons/ligaments
bone.
Thus,
scaffolds
mimicking
structural
features
native
may
be
able
to
better
support
functional
tissue
regeneration.
In
this
study,
we
fabricated
biphasic
silk
fibroin
designed
mimic
gradient
in
collagen
molecule
alignment
present
at
interface.
had
two
different
pore
alignments:
anisotropic
tendon/ligament
side
isotropic
bone
side.
Total
porosity
ranged
from
50%
80%
majority
pores
(80-90%)
were
<100-300
μm.
Young's
modulus
varied
689
1322
kPa
depending
on
type
construct.
addition,
human
adipose-derived
mesenchymal
stem
cells
cultured
evaluate
effect
morphology
cell
proliferation
gene
expression.
Biphasic
supported
attachment
influenced
cytoskeleton
organization
alignment.
expression
tendon/ligament,
enthesis,
cartilage
markers
significantly
changed
each
region
scaffolds.
conclusion,
study
show
promising
engineering.