Molecular Cancer,
Journal Year:
2017,
Volume and Issue:
16(1)
Published: April 13, 2017
Cancer
cells
are
frequently
confronted
with
metabolic
stress
in
tumor
microenvironments
due
to
their
rapid
growth
and
limited
nutrient
supply.
Metabolic
induces
cell
death
through
ROS-induced
apoptosis.
However,
cancer
can
adapt
it
by
altering
the
pathways.
AMPK
AKT
two
primary
effectors
response
stress:
acts
as
an
energy-sensing
factor
which
rewires
metabolism
maintains
redox
balance.
broadly
promotes
energy
production
abundance
milieu,
but
role
of
under
is
dispute.
Recent
studies
show
that
display
antagonistic
roles
stress.
stress-induced
ROS
signaling
lies
hub
between
reprogramming
homeostasis.
Here,
we
highlight
cross-talk
regulation
on
elimination,
summarizes
mechanism
adaptability
suggests
potential
options
for
therapeutics.
Science,
Journal Year:
2010,
Volume and Issue:
331(6016), P. 456 - 461
Published: Dec. 24, 2010
Adenosine
monophosphate-activated
protein
kinase
(AMPK)
is
a
conserved
sensor
of
intracellular
energy
activated
in
response
to
low
nutrient
availability
and
environmental
stress.
In
screen
for
substrates
AMPK,
we
identified
ULK1
ULK2,
mammalian
orthologs
the
yeast
Atg1,
which
required
autophagy.
Genetic
analysis
AMPK
or
liver
Caenorhabditis
elegans
revealed
requirement
these
kinases
mammals,
loss
resulted
aberrant
accumulation
autophagy
adaptor
p62
defective
mitophagy.
Reconstitution
ULK1-deficient
cells
with
mutant
that
cannot
be
phosphorylated
by
such
phosphorylation
mitochondrial
homeostasis
cell
survival
during
starvation.
These
findings
uncover
biochemical
mechanism
coupling
status
survival.
Science,
Journal Year:
2010,
Volume and Issue:
330(6009), P. 1344 - 1348
Published: Dec. 2, 2010
Autophagy
is
a
process
of
self-cannibalization.
Cells
capture
their
own
cytoplasm
and
organelles
consume
them
in
lysosomes.
The
resulting
breakdown
products
are
inputs
to
cellular
metabolism,
through
which
they
used
generate
energy
build
new
proteins
membranes.
preserves
the
health
cells
tissues
by
replacing
outdated
damaged
components
with
fresh
ones.
In
starvation,
it
provides
an
internal
source
nutrients
for
generation
and,
thus,
survival.
A
powerful
promoter
metabolic
homeostasis
at
both
whole-animal
level,
autophagy
prevents
degenerative
diseases.
It
does
have
downside,
however--cancer
exploit
survive
nutrient-poor
tumors.
Science,
Journal Year:
2011,
Volume and Issue:
334(6062), P. 1573 - 1577
Published: Dec. 15, 2011
Antineoplastic
chemotherapies
are
particularly
efficient
when
they
elicit
immunogenic
cell
death,
thus
provoking
an
anticancer
immune
response.
Here
we
demonstrate
that
autophagy,
which
is
often
disabled
in
cancer,
dispensable
for
chemotherapy-induced
death
but
required
its
immunogenicity.
In
response
to
chemotherapy,
autophagy-competent,
not
autophagy-deficient,
cancers
attracted
dendritic
cells
and
T
lymphocytes
into
the
tumor
bed.
Suppression
of
autophagy
inhibited
release
adenosine
triphosphate
(ATP)
from
dying
cells.
Conversely,
inhibition
extracellular
ATP-degrading
enzymes
increased
pericellular
ATP
autophagy-deficient
tumors,
reestablished
recruitment
cells,
restored
chemotherapeutic
responses
only
immunocompetent
hosts.
Thus,
essential
concentrations
improve
efficacy
antineoplastic
disabled.
Science,
Journal Year:
2013,
Volume and Issue:
342(6155)
Published: Oct. 10, 2013
Lymphocytes
face
major
metabolic
challenges
upon
activation.
They
must
meet
the
bioenergetic
and
biosynthetic
demands
of
increased
cell
proliferation
also
adapt
to
changing
environmental
conditions,
in
which
nutrients
oxygen
may
be
limiting.
An
emerging
theme
immunology
is
that
reprogramming
lymphocyte
activation
are
intricately
linked.
However,
why
T
cells
adopt
specific
programs
impact
these
have
on
function
and,
ultimately,
immunological
outcome
remain
unclear.
Research
tumor
metabolism
has
provided
valuable
insight
into
pathways
important
for
influence
metabolites
themselves
signal
transduction
epigenetic
programming.
In
this
Review,
we
highlight
concepts
regarding
proliferating
discuss
their
potential
fate
function.