To be remembered: B cell memory response against SARS‐CoV‐2 and its variants in vaccinated and unvaccinated individuals
Scandinavian Journal of Immunology,
Год журнала:
2023,
Номер
99(2)
Опубликована: Дек. 6, 2023
Abstract
COVID‐19
disease
has
plagued
the
world
economy
and
affected
overall
well‐being
life
of
most
people.
Natural
infection
as
well
vaccination
leads
to
development
an
immune
response
against
pathogen.
This
involves
production
antibodies,
which
can
neutralize
virus
during
future
challenges.
In
addition,
cellular
memory
with
B
T
cells
provides
long‐lasting
protection.
The
longevity
been
a
subject
intensive
research
in
this
field.
extent
immunity
conferred
by
different
forms
or
natural
infections
remained
debatable
for
long.
Hence,
understanding
effectiveness
these
responses
among
groups
people
assist
government
organizations
making
informed
policy
decisions.
article,
based
on
publicly
available
data,
we
have
reviewed
generated
some
vaccines
SARS‐CoV‐2
its
variants,
particularly
cell
individuals.
Язык: Английский
Targeting Spike Protein: Modified Antibody for Broad-Spectrum Binding to Coronaviruses: An In Silico Study
Virology & Immunology Journal,
Год журнала:
2023,
Номер
7(3), С. 1 - 15
Опубликована: Июль 7, 2023
An
antibody-mediated
immune
response
against
the
Spike
protein
is
one
of
potential
ways
to
target
SARS-CoV-2
virus.
The
discovery
a
highly
effective
vaccine
or
an
antiviral
drug
that
specifically
targets
viral
entry
its
replication
pathway,
are
commonly
pursued
as
way
combat
COVID-19-like
situation.
virus
has
RNA
genetic
material,
which
known
for
high
mutation
rate.
This
makes
efficiency
and
efficacy
it
suboptimal
later
due
continuous
mutations
in
epitope
region
was
evident
case
spread
Omicron
(B.1.1.529)
variant.
Here
we
tested
in-silico
approach
towards
finding
antibody
recognise
bind
across
most
variants.
We
achieved
this
by
altering
sequences
VDJ
heavy
light
chains
natural
human
(Wuhan,
PDB
ID:
7BWJ).
first
antibodies
be
studied
published
along
with
crystal
structure
during
mid2020,
have
ability
neutralize
Wuhan
isolate.
Iterative
substitutions
were
induced
7BWJ
sequence
different
combinations.
After
28
iterations,
found
variants
comparatively
higher
docking
score.
also
showed
many
members
Coronaviruses.
Язык: Английский
RBD specific B-cell Memory Responses among Vaccinated Individuals against SARS-CoV-2
Опубликована: Авг. 6, 2024
During
the
last
few
years,
world
witnessed
one
of
worst
calamities
to
humankind-
COVID-19
pandemic.
We
also
development
vaccines
at
an
unprecedented
pace
against
SARS-CoV-2-
causative
agent.
India
was
among
hard-hit
countries
by
COVID-19,
developed
its
indigenous
vaccine
and
implemented
in
other
as
well.
Initially,
antibody
level
neutralizing
titer
pathogen
were
considered
correlates
immune
protection
from
disease.
However,
long-term
provided
memory
cells
viz.
T
B
their
ability
efficiently
make
recall
responses.
In
this
regard,
globally
research
studies
focused
mainly
on
mRNA-based
vaccines.
The
response,
particularly-
cell
response
bestowed
given
Indians
is
relatively
obscure.
studied
RBD
specific
peripheral
circulation
study
participants
secrete
antigen-specific
antibodies
vaccinated
with
Covaxin
(BBV152),
Covishield
(AZD1222),
Corbevax
(BECOV2D)
Sputnik
Light
(Gam-COVID-Vac)
well
unvaccinated
individuals.
Our
revealed
that
conferred
better
antibody-secreting
(ASC)
Язык: Английский
Receptor Binding Domain-Specific B Cell Memory Responses Among Individuals Vaccinated Against SARS-CoV-2
Vaccines,
Год журнала:
2024,
Номер
12(12), С. 1396 - 1396
Опубликована: Дек. 12, 2024
Background:
The
COVID-19
pandemic
prompted
unprecedented
vaccine
development
efforts
against
SARS-CoV-2.
India,
which
was
one
of
the
countries
most
impacted
by
COVID-19,
developed
its
indigenous
in
addition
to
utilizing
ones
other
countries.
While
antibody
levels
and
neutralizing
titres
are
considered
initial
correlates
immune
protection,
long-term
protection
from
pathogen
relies
on
memory
B
T
cells
their
recall
responses.
In
this
regard,
global
research
has
primarily
focused
mRNA-based
vaccines.
studies
response,
particularly
cell
response
induced
vaccines
given
Indians,
remain
relatively
obscure.
Methods:
We
assessed
Receptor
Binding
Domain-specific
peripheral
circulation
ability
secrete
antigen-specific
antibodies
among
Indians
vaccinated
with
Covaxin
(BBV152),
Covishield
(AZD1222),
Corbevax
(BECOV2D),
Sputnik
Light,
as
well
unvaccinated
individuals.
Results:
Light
conferred
better
antibody-secreting
(ASC)
responses
over
time
compared
groups.
Conclusions:
These
findings
contribute
our
understanding
vaccine-induced
Indian
population;
providing
insights
that
could
inform
future
strategies.
Язык: Английский