Insulin resistance and cancer: molecular links and clinical perspectives
Alfredo Caturano,
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Enes Erul,
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Roberto Nilo
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et al.
Molecular and Cellular Biochemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 15, 2025
Language: Английский
Human regulatory γδT lymphocytes as novel autoimmunity-protective cells: Lessons from alopecia areata
Amos Gilhar,
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Aviad Keren,
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Nyra Goldstein
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et al.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 12, 2024
Abstract
Regulatory
T
cells
control
autoimmune
diseases
(AID).
Yet,
much
less
is
known
about
the
functions
of
evolutionarily
older
Foxp3
+
human
regulatory
γδT
(γδTregs).
Here,
we
have
explored
these
in
one
most
common
AID,
hair
loss
disorder,
alopecia
areata
(AA).
Lesional
AA
skin
showed
significantly
more
γδTreg
than
non-lesional
or
healthy
skin.
Next,
investigated
how
γδTregs
impact
on
experimentally
induced
scalp
xenotransplants
SCID/beige
mice.
PBMC-derived
autologous
were
pre-activated
with
IL-2,
IL-15,
and
zoledronate
in
vitro
injected
intradermally
into
xenografts
before
after
induction
by
CD8
vivo.
not
only
prevented
development
lesions,
but
also
promoted
regrowth
established
lesions
xenotransplants,
accompanied
a
reduced
perifollicular
lymphocytic
infiltrate
restoration
follicle
(HF)
immune
privilege
(IP)
.
We
then
co-cultured
organ-cultured,
stressed
(MICA-overexpressing)
HFs
presence/absence
pathogenic
CD8+/NKG2D
that
induce
HF
IP
collapse
secreting
interferon-g,
all
under
conditions.
Under
ex
vivo
conditions,
mitigated
cells,
primarily
through
IL-10
TGF-β1
secretion,
enhanced
keratinocyte
proliferation
their
apoptosis
while
preventing
premature
catagen
(=
hallmarks).
These
findings
model
AID
introduce
as
important
lymphocytes
invite
novel
cell-based
therapies
cell-dependent
AIDs
characterized
such
AA.
Language: Английский