Acta Pharmaceutica Sinica B,
Journal Year:
2022,
Volume and Issue:
12(5), P. 2206 - 2223
Published: Jan. 4, 2022
Looking
retrospectively
at
the
development
of
humanity,
vaccination
is
an
unprecedented
medical
landmark
that
saves
lives
by
harnessing
human
immune
system.
During
ongoing
coronavirus
disease
2019
(COVID-19)
pandemic,
still
most
effective
defense
modality.
The
successful
clinical
application
lipid
nanoparticle-based
Pfizer/BioNTech
and
Moderna
mRNA
COVID-19
vaccines
highlights
promising
future
nanotechnology
in
vaccine
development.
Compared
with
conventional
vaccines,
nanovaccines
are
supposed
to
have
advantages
lymph
node
accumulation,
antigen
assembly,
presentation;
they
also
have,
unique
pathogen
biomimicry
properties
because
well-organized
combination
multiple
factors.
Beyond
infectious
diseases,
exhibits
considerable
potential
for
cancer
treatment.
ultimate
goal
fully
mobilize
potency
system
as
a
living
therapeutic
recognize
tumor
antigens
eliminate
cells,
nanotechnologies
requisite
realize
this
goal.
In
review,
we
summarize
recent
advances
from
prevention
immunotherapy
highlight
different
types
materials,
mechanisms,
administration
methods,
well
perspectives.
iScience,
Journal Year:
2021,
Volume and Issue:
24(12), P. 103479 - 103479
Published: Nov. 20, 2021
Vaccines
based
on
mRNA-containing
lipid
nanoparticles
(LNPs)
are
a
promising
new
platform
used
by
two
leading
vaccines
against
COVID-19.
Clinical
trials
and
ongoing
vaccinations
present
with
varying
degrees
of
protection
levels
side
effects.
However,
the
drivers
reported
effects
remain
poorly
defined.
Here
we
evidence
that
Acuitas'
LNPs
in
preclinical
nucleoside-modified
mRNA
vaccine
studies
highly
inflammatory
mice.
Intradermal
intramuscular
injection
these
led
to
rapid
robust
responses,
characterized
massive
neutrophil
infiltration,
activation
diverse
pathways,
production
various
cytokines
chemokines.
The
same
dose
LNP
delivered
intranasally
similar
responses
lung
resulted
high
mortality
rate,
mechanism
unresolved.
Thus,
mRNA-LNP
platforms'
potency
supporting
induction
adaptive
immune
observed
may
stem
from
LNPs'
nature.
Vaccines,
Journal Year:
2021,
Volume and Issue:
9(4), P. 359 - 359
Published: April 8, 2021
COVID-19
vaccines
have
been
developed
with
unprecedented
speed
which
would
not
possible
without
decades
of
fundamental
research
on
delivery
nanotechnology.
Lipid-based
nanoparticles
played
a
pivotal
role
in
the
successes
and
many
other
nanomedicines,
such
as
Doxil
Signal Transduction and Targeted Therapy,
Journal Year:
2023,
Volume and Issue:
8(1)
Published: July 19, 2023
Abstract
Adjuvants
are
indispensable
components
of
vaccines.
Despite
being
widely
used
in
vaccines,
their
action
mechanisms
not
yet
clear.
With
a
greater
understanding
the
by
which
innate
immune
response
controls
antigen-specific
response,
adjuvants’
beginning
to
be
elucidated.
can
categorized
as
immunostimulants
and
delivery
systems.
Immunostimulants
danger
signal
molecules
that
lead
maturation
activation
antigen-presenting
cells
(APCs)
targeting
Toll-like
receptors
(TLRs)
other
pattern
recognition
(PRRs)
promote
production
antigen
signals
co-stimulatory
signals,
turn
enhance
adaptive
responses.
On
hand,
systems
carrier
materials
facilitate
presentation
prolonging
bioavailability
loaded
antigens,
well
antigens
lymph
nodes
or
APCs.
The
systematically
summarized
at
this
review.
This
is
followed
an
introduction
mechanisms,
properties,
progress
classical
vaccine
adjuvants.
Furthermore,
since
some
adjuvants
under
investigation
exhibit
potency
than
adjuvants,
could
compensate
for
deficiencies
summary
adjuvant
platforms
subsequently
presented.
Notably,
we
highlight
different
immunological
properties
these
platforms,
will
provide
wide
range
options
rational
design
basis,
review
points
out
development
prospects
problems
should
paid
attention
future.
Molecular Cancer,
Journal Year:
2021,
Volume and Issue:
20(1)
Published: Feb. 16, 2021
Abstract
mRNA
vaccines
have
tremendous
potential
to
fight
against
cancer
and
viral
diseases
due
superiorities
in
safety,
efficacy
industrial
production.
In
recent
decades,
we
witnessed
the
development
of
different
kinds
mRNAs
by
sequence
optimization
overcome
disadvantage
excessive
immunogenicity,
instability
inefficiency.
Based
on
immunological
study,
are
coupled
with
immunologic
adjuvant
various
delivery
strategies.
Except
for
optimization,
assistance
mRNA-delivering
strategies
is
another
method
stabilize
improve
their
efficacy.
The
understanding
increasing
antigen
reactiveness
gains
insight
into
mRNA-induced
innate
immunity
adaptive
without
antibody-dependent
enhancement
activity.
Therefore,
address
problem,
scientists
further
exploited
carrier-based
(lipid-based
delivery,
polymer-based
peptide-based
virus-like
replicon
particle
cationic
nanoemulsion),
naked
dendritic
cells-based
vaccines.
article
will
discuss
molecular
biology
underlying
anti-virus
anti-tumor
mechanisms,
an
introduction
phenomena,
strategies,
importance
Corona
Virus
Disease
2019
(COVID-19)
related
clinical
trials
diseases.
Finally,
challenge
bacterial
parasitic
ACS Nano,
Journal Year:
2021,
Volume and Issue:
15(4), P. 6709 - 6722
Published: March 23, 2021
Emerging
therapeutic
treatments
based
on
the
production
of
proteins
by
delivering
mRNA
have
become
increasingly
important
in
recent
times.
While
lipid
nanoparticles
(LNPs)
are
approved
vehicles
for
small
interfering
RNA
delivery,
there
still
challenges
to
use
this
formulation
delivery.
LNPs
typically
a
mixture
cationic
lipid,
distearoylphosphatidylcholine
(DSPC),
cholesterol,
and
PEG-lipid.
The
structural
characterization
mRNA-containing
(mRNA-LNPs)
is
crucial
full
understanding
way
which
they
function,
but
information
alone
not
enough
predict
their
fate
upon
entering
bloodstream.
biodistribution
cellular
uptake
affected
surface
composition
as
well
extracellular
present
at
site
LNP
administration,
Abstract
Ionizable
lipid
nanoparticles
(LNPs)
are
the
most
clinically
advanced
nano‐delivery
system
for
therapeutic
nucleic
acids.
The
great
effort
put
in
development
of
ionizable
lipids
with
increased
vivo
potency
brought
LNPs
from
laboratory
benches
to
FDA
approval
patisiran
2018
and
ongoing
clinical
trials
mRNA‐based
vaccines
against
SARS‐CoV‐2.
Despite
these
success
stories,
several
challenges
remain
RNA
delivery,
including
what
is
known
as
“endosomal
escape.”
Reaching
cytosol
mandatory
unleashing
activity
molecules,
their
accumulation
other
intracellular
compartments
would
simply
result
efficacy
loss.
In
LNPs,
ability
form
destabilizing
non‐bilayer
structures
at
acidic
pH
recognized
key
endosomal
escape
cytosolic
delivery.
This
motivating
a
surge
studies
aiming
designing
novel
improved
biodegradation
safety
profiles.
this
work,
we
describe
journey
RNA‐loaded
across
multiple
barriers,
extracellular
space
cytosol.
silico
molecular
dynamics
modeling,
vitro
high‐resolution
microscopy
analyses,
imaging
data
systematically
reviewed
distill
out
regulating
mechanisms
underlying
RNA.
Finally,
comparison
strategies
employed
by
enveloped
viruses
deliver
genetic
material
into
cells
also
presented.
combination
multidisciplinary
analytical
toolkit
quantification
nature‐inspired
design
could
foster
future
delivery
Pharmaceutics,
Journal Year:
2020,
Volume and Issue:
12(11), P. 1095 - 1095
Published: Nov. 15, 2020
In
the
recent
of
years,
use
lipid
nanoparticles
(LNPs)
for
RNA
delivery
has
gained
considerable
attention,
with
a
large
number
in
clinical
pipeline
as
vaccine
candidates
or
to
treat
wide
range
diseases.
Microfluidics
offers
advantages
their
manufacture
due
its
scalability,
reproducibility
and
fast
preparation.
Thus,
this
study,
we
have
evaluated
operating
formulation
parameters
be
considered
when
developing
LNPs.
Among
them,
flow
rate
ratio
(FRR)
total
(TFR)
been
shown
significantly
influence
physicochemical
characteristics
produced
particles.
particular,
increasing
TFR
FRR
decreased
particle
size.
The
amino
choice
(cationic—DOTAP
DDAB;
ionisable—MC3),
buffer
(citrate
pH
6
TRIS
7.4)
type
nucleic
acid
payload
(PolyA,
ssDNA
mRNA)
also
an
impact
on
these
LNPs
were
high
(>90%)
loading
all
cases
below
100
nm
low
polydispersity
index
(≤0.25).
results
within
paper
could
used
guide
development
scalable
LNP
systems
using
microfluidics.