Growth hormone-releasing hormone receptor (GHRH-R) and its signaling
Reviews in Endocrine and Metabolic Disorders,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
Abstract
The
hypothalamic
polypeptide
growth
hormone-releasing
hormone
(GHRH)
stimulates
the
secretion
of
(GH)
from
pituitary
through
binding
and
activation
type
GHRH
receptor
(GHRH-R),
which
belongs
to
family
G
protein-coupled
receptors
with
seven
potential
membrane-spanning
domains.
Various
splice
variants
GHRH-R
(SV)
in
human
neoplasms
other
extrapituitary
tissues
were
demonstrated
their
cDNA
was
sequenced.
Among
SVs,
variant
1
(SV1)
possesses
greatest
similarity
full-length
remains
functional
by
eliciting
cAMP
signaling
mitogenic
activity
upon
stimulation
GHRH.
In
this
review,
we
briefly
discuss
activation,
regulation,
molecular
mechanisms
pathways
GHRH-Rs
SVs
various
also
summarize
expression,
biological
activities
function
GHRH,
its
analogs
receptors.
A
large
body
work
have
extensively
studied
evaluated
clinical
applications
agonists
antagonists
diverse
fields,
including
oncology,
endocrinology,
obesity,
diabetes,
metabolic
dysfunctions,
cardiology,
immune
functions,
mood
disorders,
Alzheimer’s
lung
disease,
ophthalmology,
inflammation,
wound
healing
applications.
These
results
strongly
support
therapeutic
use
medicine
near
future.
Language: Английский
Update on regulation of GHRH and its actions on GH secretion in health and disease
Reviews in Endocrine and Metabolic Disorders,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 21, 2025
Language: Английский
GHRH in diabetes and metabolism
Reviews in Endocrine and Metabolic Disorders,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 19, 2024
Abstract
Despite
over
a
century
of
insulin
therapy
and
recent
advances
in
glucose
monitoring,
diabetes
its
complications
remain
significant
burden.
Current
medications
are
not
durable,
with
symptoms
often
returning
after
treatment
ends,
responses
vary
between
patients.
Additionally,
the
effectiveness
many
diminishes
time,
highlighting
need
for
alternative
approaches.
Maintaining
β-cell
mass
promoting
regeneration
offer
more
curable
treatments,
while
cell
replacement
therapies
could
be
an
option
if
is
feasible.
For
both
strategies,
enhancing
survival
crucial.
Growth
hormone-releasing
hormone
(GHRH)
was
originally
discovered
ability
to
stimulate
production
release
growth
(GH)
from
pituitary.
Beyond
hypothalamus,
GHRH
produced
peripheral
tissues,
receptor,
GHRHR,
expressed
tissues
such
as
pituitary,
pancreas,
adipose
tissue,
intestine,
liver.
Several
studies
have
shown
that
analogs
enhance
insulin-producing
pancreatic
β-cells
vitro
animal
models.
These
beneficial
effects
strongly
support
potential
agonists
antagonists
clinical
human
metabolic
diseases
or
cells
used
transplantation.
In
current
review,
we
will
discuss
roles
hypothalamic
extrahypothalamic
metabolism
physiological
pathological
contexts,
along
underlying
mechanisms.
Furthermore,
diseases.
Language: Английский
Mention to Prof. Andrew V. Schally
Reviews in Endocrine and Metabolic Disorders,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 17, 2025
Language: Английский
Growth Hormone-Releasing Hormone Antagonists Increase Radiosensitivity in Non-Small Cell Lung Cancer Cells
International Journal of Molecular Sciences,
Journal Year:
2025,
Volume and Issue:
26(7), P. 3267 - 3267
Published: April 1, 2025
Growth
hormone-releasing
hormone
(GHRH)
antagonists
exert
antitumor
functions
in
different
experimental
cancers.
However,
their
role
combination
with
radiotherapy
non-small
cell
lung
cancer
(NSCLC)
remains
unknown.
Therefore,
we
investigated
the
radiosensitizing
effect
of
GHRH
NSCLC.
A549
and
H522
NSCLC
lines
were
exposed
to
ionizing
radiation
(IR)
MIA-602
MIA-690,
either
individually
or
combination.
Cell
viability
proliferation
evaluated
by
MTT,
BrdU,
flow
cytofluorimetry,
clonogenic
assays;
gene
protein
expression,
signaling
pathways,
apoptosis
analyzed
real-time
PCR,
Western
blot,
annexin
staining,
caspase-3
assay.
showed
effects
alone
potentiated
IR-induced
inhibition
proliferation.
The
MIA-690
IR
decreased
expression
receptor,
its
oncogenic
splice
variant
1,
IGF1
mRNA
levels.
Additionally,
cycle
inhibitors
proapoptotic
markers
upregulated,
whereas
cyclins,
MYC,
antiapoptotic
Bcl-2
downregulated.
Radioresistance
was
prevented
which
also
blunted
epithelial-mesenchymal
transition
enhancing
E-cadherin
reducing
mesenchymal,
oxidative,
proangiogenic
effectors.
Finally,
both
enhanced
radiosensitivity
primary
human
cells.
These
findings
highlight
potential
as
radiosensitizers
treatment.
Language: Английский
Impact of corticoid receptors on Alzheimer’s disease: a neuroendocrine perspective
Falguni Goel,
No information about this author
Daksh Kumar,
No information about this author
Anushka Sharma
No information about this author
et al.
Inflammopharmacology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 18, 2025
Language: Английский
The development of growth hormone-releasing hormone analogs: Therapeutic advances in cancer, regenerative medicine, and metabolic disorders
Reviews in Endocrine and Metabolic Disorders,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 26, 2024
Abstract
Growth
Hormone-Releasing
Hormone
(GHRH)
and
its
analogs
have
gained
significant
attention
for
their
therapeutic
potential
across
various
domains,
including
oncology,
regenerative
medicine,
metabolic
disorders.
Originally
recognized
role
in
regulating
growth
hormone
(GH)
secretion,
GHRH
has
since
been
discovered
to
exert
broader
physiological
effects
beyond
the
pituitary
gland,
with
receptors
identified
multiple
extrahypothalamic
tissues,
tumor
cells.
This
review
explores
development
of
both
agonists
antagonists,
focusing
on
mechanisms
action,
applications,
future
potential.
shown
promise
promoting
tissue
regeneration,
improving
cardiac
function,
enhancing
islet
survival
diabetes.
Meanwhile,
particularly
those
MIA
AVR
series,
demonstrate
potent
antitumor
activity
by
inhibiting
cancer
cell
proliferation
downregulating
factor
pathways,
while
also
exhibiting
anti-inflammatory
properties.
Preclinical
studies
models
lung,
prostate,
breast,
gastrointestinal
cancers
indicate
that
could
offer
a
novel
approach
minimal
toxicity.
Additionally,
antagonists
are
being
investigated
treating
neurodegenerative
diseases
inflammatory
conditions.
highlights
versatility
as
promising
class
agents,
poised
impact
fields
medicine.
Language: Английский