Infusion & Chemotherapy,
Journal Year:
2022,
Volume and Issue:
3, P. 5 - 12
Published: Oct. 24, 2022
BACKGROUND.
The
SARS-CoV-2
pandemic
has
a
significant
impact
on
the
global
health
care
system,
so
effective
treatments
for
coronavirus
disease
(COVID-19)
are
urgently
needed.
Nowadays,
drug
repurposing
is
widely
considered
COVID-19
therapy;
attention
paid
to
inhibitors
of
transmembrane
serine
proteases
(TMPRSS2),
which
ensure
penetration
into
human
cells
and
contribute
their
infection.
ε-aminocaproic
acid
(ACA),
been
used
worldwide
many
years
correct
blood
loss
as
fibrinolysis
inhibitor,
also
known
its
ability
block
TMPRRS2.
It
approved
by
Ministry
Health
Ukraine
treatment
influenza
acute
respiratory
viral
infections.
OBJECTIVE.
aim
our
study
was
evaluate
antiviral
effect
ACA
in
vitro
staining
antigen
(spike
protein)
visual
scoring
cytopathogenic
(CPE).
RESULTS
AND
DISCUSSION.
Using
immunohistochemistry
assay
it
found
that
mean
value
EC50
Caco-2
2.5
mg/ml
Calu-3
–
17.3
mg/ml.
CPE
identified
6.4
8.7
Additional
analysis
shown
low
cytotoxicity
with
CC50
values
>50
after
24h
48h
incubation
37,57
41,29
incubation,
respectively.
Antiviral
activity
detected
when
using
non-toxic
concentrations
did
not
depend
time
introduction
(before
virus
simultaneously
pathogen
1-hour
incubation).
can
be
recommended
further
vivo
studies
laboratory
animals.
BMC Cancer,
Journal Year:
2024,
Volume and Issue:
24(1)
Published: April 17, 2024
Abstract
Background
The
antiviral
drug
Nirmatrelvir
was
found
to
be
a
key
in
controlling
the
progression
of
pneumonia
during
infectious
phase
COVID-19.
However,
there
are
very
few
options
for
effective
treatment
cancer
patients
who
have
viral
pneumonia.
Glucocorticoids
is
one
means
control
pneumonia,
but
many
adverse
events.
EGCG
natural
low
toxic
compound
with
anti-inflammatory
function.
Thus,
this
study
designed
investigate
safety
and
efficacy
epigallocatechin-3-gallate
(EGCG)
aerosol
COVID-19
populations.
Methods
as
prospective,
single-arm,
open-label
I/II
trial
at
Shandong
Cancer
Hospital
Institute,
between
January
5,
2023
March
31,2023
on
radiographic
signs
after
confirmed
novel
coronavirus
infection.
These
were
treated
nebulization
10
ml
three
times
daily
least
seven
days.
concentrations
increased
from
1760-8817umol/L
4
levels
dose
escalation
following
standard
Phase
I
design
3–6
per
level.
Any
grade
event
caused
by
considered
dose-limiting
toxicity
(DLT).
maximum
tolerated
(MTD)
defined
highest
less
than
one-third
experiencing
limiting
(DLT)
due
EGCG.
primary
end
points
CT
findings,
former
graded
Common
Terminology
Criteria
Adverse
Events
(CTCAE)
v.
5.0.
secondary
point
laboratory
parameters
before
treatment.
Result
A
total
60
high
risk
factors
severe
(factors
such
old
age,
smoking
combined
complications)were
included
I-II
study.
54
final
analysis
pathologically
tumor
burden
completed
whole
course
patient
bucking
level
1760
umol/L
no
acute
associated
has
been
reported
second
or
third
gradients.
At
8817umol/L,
Grade
1
events
nausea
stomach
discomfort
occurred
two
patients,
which
resolved
spontaneously
within
hour.
After
week
treatment,
showed
that
incidence
non-progression
82%
(32/39),
improvement
rate
56.4%
(22/39).
There
significant
difference
inflammation-related
(white
blood
cell
count,
lymphocyte
IL-6,
ferritin,
C-reactive
protein
lactate
dehydrogenase)
Conclusion
Aerosol
inhalation
well
tolerated,
preliminary
investigation
population
suggests
may
COVID-19-induced
can
promote
moderate
prevent
them
developing
into
Trial
registration
ClinicalTrials.gov
Identifier:
NCT05758571.
Date
registration:
8
February
2023.
Smart Materials in Medicine,
Journal Year:
2024,
Volume and Issue:
5(2), P. 261 - 280
Published: April 11, 2024
Lung
cancer
has
surpassed
other
types
of
to
become
the
primary
cause
cancer-related
deaths.
Surgery
stands
as
foremost
clinical
treatment
strategy
available
for
tackling
this
condition,
but
it
receives
a
low
efficiency
most
patients.
In
recent
years,
some
adjuvant
therapies
are
employed
improve
lung
efficiency,
such
chemotherapy,
targeted
therapy
and
immunotherapy.
However,
these
strategies
have
not
significantly
increased
overall
survival
Additionally,
random
distribution
drugs
will
induce
severe
side
effects.
Nanomedicines
got
great
attentions
boost
drug
effect
reduce
adverse
reactions,
including
liposome-based
nanoparticles,
polymeric
inorganic
exosomes.
Importantly,
nanomedicines
contribute
improving
bioavailability,
stability
residency
in
target
regions.
Benefiting
from
physiological
characteristics
lung,
inhaled
pulmonary
delivery
combination
with
nanomedicine
provide
non-invasive
effective
treating
cancer.
Furthermore,
use
targeting
ligands
enables
precise
loaded
cells.
Inhaled
exhibits
unique
sustained
release
behaviors
alveoli,
amplifying
therapeutic
reducing
This
review
aims
discuss
various
methods
delivering
treat
also
summarizes
clearance
mechanism
lung.
Overall,
focuses
on
application
different
inhalable
nanomedicines,
which
may
inspire
development
more
treatments
against
Science Translational Medicine,
Journal Year:
2023,
Volume and Issue:
15(711)
Published: Aug. 30, 2023
The
Omicron
variant
continuously
evolves
under
the
humoral
immune
pressure
exerted
by
vaccination
and
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2)
infection,
resulting
subvariants
display
further
evasion
antibody
escape.
An
engineered
angiotensin-converting
enzyme
(ACE2)
decoy
composed
of
high-affinity
ACE2
an
IgG1
Fc
domain
could
offer
alternative
modality
to
neutralize
SARS-CoV-2.
We
previously
reported
its
broad
spectrum
therapeutic
potential
in
rodent
models.
Here,
we
demonstrate
that
retains
neutralization
activity
against
subvariants,
including
currently
emerging
XBB
BQ.1
strains,
which
completely
evade
antibodies
clinical
use.
SARS-CoV-2,
suboptimal
concentration
neutralizing
drugs,
generated
SARS-CoV-2
mutants
escaping
wild-type
monoclonal
antibodies,
whereas
no
escape
mutant
emerged
decoy.
Furthermore,
inhalation
aerosolized
decoys
improved
outcomes
rodents
infected
with
at
a
20-fold
lower
dose
than
intravenous
administration.
Last,
exhibited
efficacy
for
cynomolgus
macaques
These
results
indicate
this
represents
promising
strategy
overcome
immune-evading
variants
liquid
aerosol
be
considered
as
noninvasive
approach
enhance
COVID-19
treatments.
Many
of
the
current
pandemic
threats
are
caused
by
viruses
that
infect
respiratory
tract.
Remarkably
though,
majority
vaccines
and
antiviral
drugs
administered
via
alternative
routes.
In
this
perspective,
we
argue
pulmonary
route
administration
deserves
more
attention
in
search
for
novel
therapeutic
strategies
against
virus
infections.
Firstly,
at
viral
portal
entry
can
induce
a
broader
immune
response,
employing
mucosal
arm
system;
secondly,
direct
target
site
leads
to
superior
bioavailability,
enabling
lower
dosing
reducing
chance
side
effects.
We
further
elaborate
on
why
may
effect
compared
intranasal
provide
reasons
dry
powder
formulations
inhalation
have
significant
advantages
over
standard
liquid
formulations.