Ecology of vertical tumor transmission in the freshwater cnidarian Hydra oligactis
Nikita Stepanskyy,
Michel Pascal,
Klara Asselin
и другие.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Фев. 18, 2025
Язык: Английский
The widespread vulnerability of Hydra oligactis to tumourigenesis confirms its value as a model for studying the effects of tumoural processes on the ecology and evolution of species
The Science of The Total Environment,
Год журнала:
2024,
Номер
951, С. 175785 - 175785
Опубликована: Авг. 24, 2024
Tumoural
processes,
ubiquitous
phenomena
in
multicellular
organisms,
influence
evolutionary
trajectories
of
all
species.
To
gain
a
holistic
understanding
their
impact
on
species'
biology,
suitable
laboratory
models
are
required.
Such
characterised
by
widespread
availability,
ease
cultivation,
and
reproducible
tumour
induction.
It
is
especially
important
to
explore,
through
experimental
approaches,
how
tumoural
processes
alter
ecosystem
functioning.
The
cnidarian
Hydra
oligactis
currently
emerging
as
promising
model
due
its
development
both
transmissible
non-transmissible
tumours
the
wide
breadth
experiments
that
can
be
conducted
with
this
species
(at
individual,
population,
mechanistic,
levels).
However,
hydras
are,
so
far,
only
documented
Europe,
it
not
clear
if
phenomenon
local
or
widespread.
In
study
we
demonstrate
Australian
from
two
independent
river
networks
develop
consisting
interstitial
stem
cells
display
phenotypic
alterations
(supernumerary
tentacles)
akin
European
counterparts.
This
finding
confirms
value
for
ecological
research
host-tumour
interactions.
•
Tumoral
biology
dynamics
There
need
good
context
increased
oncogenic
pressures
We
show
has
geographical
vulnerabilities
tumorigenesis
thus
great
effect
functioning
discuss
implications
using
future
comparative
studies
Язык: Английский
Cancer and One Health: tumor-bearing individuals can act as super spreaders of symbionts in communities
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Сен. 11, 2024
Recent
theoretical
advances
in
the
One
Health
approach
have
suggested
that
cancer
pathologies
should
be
given
greater
consideration,
as
cancers
often
render
their
hosts
more
vulnerable
to
infectious
agents,
which
could
turn
them
into
super
spreaders
within
ecosystems.
Although
biologically
plausible,
this
hypothesis
has
not
yet
been
validated
experimentally.
Using
a
community
of
cnidarians
Hydra
genus
(Hydra
oligactis,
viridissima,
vulgaris)
and
commensal
ciliate
species
(Kerona
pediculus)
colonizes
them,
we
tested
whether
tumoral
polyps
H.
compared
healthy
ones,
played
an
amplifying
role
number
ciliates,
potentially
resulting
higher
likelihood
infection
for
other
members
through
spillovers.
Our
results
indicate
K.
pediculus
proliferation
rate
on
oligactis
than
infestation
hydras.
However,
magnitude
spillover
differed
between
recipient
species.
This
study
provides
our
knowledge
first
elements
proof
concept
individuals
communities
act
symbionts
species,
thus
affect
biotic
interactions
dynamics
Язык: Английский
Beyond Peto’s Paradox: Expanding the Study of Cancer Resistance Across Species
Evolution,
Год журнала:
2024,
Номер
79(1), С. 6 - 10
Опубликована: Ноя. 4, 2024
Abstract
Peto’s
paradox,
which
highlights
the
lower-than-expected
cancer
rates
in
larger
and/or
longer-lived
species,
is
a
cornerstone
of
discussions
at
intersection
ecology,
evolution,
and
research.
It
prompts
investigations
into
how
species
with
traits
that
theoretically
increase
risk
manage
to
exhibit
resistance,
ultimate
goal
uncovering
novel
therapies
for
humans.
Building
on
these
foundational
insights,
we
propose
expanding
research
focus
that,
despite
possessing
beyond
size
longevity
their
risk,
unexpected
resistance.
Testing
paradox
without
interference
from
transient
dynamics
also
requires
considering
are
an
equilibrium
between
risks
defenses,
increasingly
challenging
due
anthropogenic
activities.
Additionally,
argue
transmissible
cancers
could
significantly
help
understanding
metastatic
process
might
be
naturally
suppressed.
This
perspective
timely
aims
support
continued
in-depth
identification
anti-cancer
adaptations
retained
throughout
evolution
animal
kingdom.
Язык: Английский
Oncogenic processes: a neglected parameter in the evolutionary ecology of animals
Comptes Rendus Biologies,
Год журнала:
2024,
Номер
347(G1), С. 137 - 157
Опубликована: Ноя. 7, 2024
Cancer
is
a
biological
process
that
emerged
at
the
end
of
Precambrian
era
with
rise
multicellular
organisms.
Traditionally,
cancer
has
been
viewed
primarily
as
disease
relevant
to
human
and
domesticated
animal
health,
attracting
attention
mainly
from
oncologists.
In
recent
years,
however,
community
ecologists
evolutionary
biologists
recognized
pivotal
role
cancer-related
issues
in
paths
various
species,
influencing
multiple
facets
their
biology.
It
become
evident
overlooking
these
untenable
for
comprehensive
understanding
species
evolution
ecosystem
functioning.
this
article,
we
highlight
some
significant
advancements
field,
also
underscoring
pressing
need
consider
reciprocal
interactions
not
only
between
cells
hosts
but
all
entities
comprising
holobiont.
This
reflection
gains
particular
relevance
ecosystems
face
increasing
pollution
mutagenic
substances,
resulting
resurgence
cases
wildlife.
Le
est
un
processus
biologique
qui
émergé
à
la
fin
de
l'ère
précambrienne
avec
l'apparition
des
organismes
multicellulaires.
Traditionnellement,
le
été
principalement
perçu
comme
une
maladie
touchant
santé
humaine
et
celle
animaux
domestiques,
attirant
l'attention
oncologues.
Cependant,
ces
dernières
années,
communauté
écologistes
biologistes
évolutionnistes
reconnu
rôle
central
questions
liées
au
dans
les
trajectoires
évolutives
diverses
espèces,
influençant
multiples
aspects
leur
biologie.
Il
devenu
évident
que
négliger
enjeux
intenable
pour
compréhension
exhaustive
l'évolution
espèces
du
fonctionnement
écosystèmes.
Dans
cet
nous
mettons
en
lumière
certaines
avancées
significatives
ce
domaine,
soulignant
également
nécessité
pressante
considérer
réciproques
non
seulement
entre
cellules
cancéreuses
leurs
hôtes,
mais
aussi
toutes
entités
constituant
l'holobionte.
Cette
réflexion
prend
pertinence
particulière
alors
écosystèmes
sont
confrontés
croissante
par
substances
mutagènes,
entraînant
résurgence
cas
faune
sauvage.