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David Ohayon

@davidohayon

CNRS Researcher • Developmental neurobiologist @CBIToulouse • Postdoc @UCL • Interested in astrocyte diversity and glioma

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03.01.2024
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Latest posts by David Ohayon @davidohayon

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Save the date! 🗓
Our next Thematic Meeting will be held on 26-27 May 2026 in the beautiful city of Toulouse 🤩
Discover the program: neurosciences.asso.fr/JT2026/

@laureverret.bsky.social @cbitoulouse.bsky.social

03.11.2025 08:50 👍 4 🔁 3 💬 0 📌 0
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Euroglia is open !! #Glia2025

07.07.2025 14:45 👍 14 🔁 4 💬 0 📌 0
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The Glial Cell Club is here! #Glia2025 #Marseille

07.07.2025 15:35 👍 13 🔁 3 💬 0 📌 0
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Acute dietary methionine restriction triggers cell cycle arrest and reversible growth defects in the neocortex Molecular biology; Neuroscience

The last paper of the lab is out !!!!!! Congrats to @sulovsaha.bsky.social, the Davy's team members and the collaborators !!!!!

13.06.2025 07:19 👍 6 🔁 1 💬 1 📌 0
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Acute dietary methionine restriction triggers cell cycle arrest and reversible growth defects in the neocortex Molecular biology; Neuroscience

Last part of PhD is online now! All credit goes to #DAVY lab members and collaborators :)

Questions arising:
1. How a developing organ sets up metabolism-dependent growth pattern?
2. If developmental time and trajectories are plastic, who counts the neuronal numbers (expected) during neurogenesis?

03.06.2025 15:57 👍 5 🔁 1 💬 1 📌 0
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Carence en méthionine : le cerveau fœtal en première ligne Alors que plusieurs études montrent les effets bénéfiques d’une diminution de l’apport de méthionine dans l’alimentation, une étude récente publiée dans

Carence en méthionine : le cerveau fœtal en première ligne 🧠

🤝 @inserm.fr‬ @cbitoulouse.bsky.social‬
👉 L'article dans @cp-iscience.bsky.social‬ |

13.06.2025 07:01 👍 8 🔁 3 💬 0 📌 0
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📢 ONLY A FEW DAYS LEFT TO SUBMIT AN ABSTRACT 📅

Not yet registered for the #YoungGlialCellDay?
Join us to discover the work of our incredible young researchers!

PS: Senior researchers are more than welcome to attend this event 😉

Registration here: cutt.ly/xrdy5xkE

We look forward to seeing you!

07.04.2025 14:57 👍 5 🔁 3 💬 0 📌 0
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Pour clôturer l'édition de la Semaine du Cerveau2025, nous avons eu le plaisir de découvrir les travaux des jeunes chercheurs du @collegedefrance.bsky.social autour de conférences sur les astrocytes. @semaineducerveau.bsky.social #association.chadoc @drnodepret.bsky.social @pslqlife.bsky.social

21.03.2025 20:36 👍 13 🔁 5 💬 0 📌 0
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Cerveau : prendre le train du sommeil avec Armelle Rancillac L’électrophysiologiste Armelle Rancillac travaille sur les mécanismes impliqués dans la régulation du sommeil lent, en particulier les interactions entre neurones et astrocytes d’une zone particulière...

[RDV 16h !] L’électrophysiologiste @rancillac.bsky.social travaille sur les mécanismes impliqués dans la régulation du sommeil lent, en particulier les interactions entre neurones et astrocytes du noyau ventrolatéral préoptique tinyurl.com/2yfko3sy Comment facilitent-elles l’induction du sommeil ?

12.03.2025 11:07 👍 47 🔁 12 💬 1 📌 1
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Registration to the Glial Cell Day for Young Researchers - May 13, 2025 - Montpellier (France) | Club des Cellules Gliales The French Glial Cell Club is happy to organize a new meeting focused on glial cells on May 13, 2025 in Montpellier, just before the NeuroFrance...

We are pleased to announce that the registration for the 2nd Young Glial Cell Day which will take place in Montpellier on May 13, 2025!

👉 club-de-cellules-gliales.assoconnect.com/collect/desc...

Abstract submissions for oral and poster presentations will close on March 28, 2025.
See you soon!

13.03.2025 08:10 👍 5 🔁 8 💬 0 📌 0
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📢 Registration for our 2nd Young Glial Cell Day (Montpellier, May 13) is now open! 🎉

⏰ Deadline for abstract submission (talk or poster): March 28

Registration here: lnkd.in/dnkfc3DN

Hope to see all of you there!

The Young Glial Cell Club Researchers

#glialcell #frenchglialcellclub

04.03.2025 12:26 👍 5 🔁 7 💬 0 📌 0

Les personnes sélectionnées et déjà inscrites au meeting seront remboursées de leur frais d’inscription !

Pour postuler veuillez nous envoyer :
Votre abstract ou une courte lettre de motivation
Un CV au Club des Cellules Gliales
glialcellclub@gmail.com
frenchglialcellclub.fr

#Marseille #glia2025

03.02.2025 09:05 👍 4 🔁 4 💬 0 📌 0
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Le Congrès Européen « XVII European Meeting on Glial Cells in Health and Disease » aura lieu à Marseille du 7 au 11 Juillet 2025.

Le comité d’organisation lance un appel à candidature pour 10 volontaires pour une aide logistique lors du meeting !!
Date limite : 8 février 2025
frenchglialcellclub.fr

03.02.2025 09:01 👍 7 🔁 7 💬 0 📌 1
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🚀 Don't miss the GLIA Introductory Course on Monday, July 7, 2025
A cutting-edge training on glial cells and their key role in the brain! 🧠✨
📅 Learn more & register here 👉 www.glia2025.eu/introductory...
#Neuroscience #GLIA2025 #BrainResearch #Glia

30.01.2025 16:40 👍 7 🔁 3 💬 0 📌 0
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Mapping the developmental trajectory of human astrocytes reveals divergence in glioblastoma Nature Cell Biology - Sojka et al. analyse the transcriptomic and epigenomic landscape of human astrocyte maturation and identify an epigenetically regulated intermediate state associated with...

First 🦋 post! Very excited to share our lab's latest work exploring the shared and divergent aspects of human astrocyte development and glioblastoma. This effort spans many fields from developmental #glial biology to #stem cells and #tumor biology. rdcu.be/d5ADz A 🧵

08.01.2025 17:13 👍 132 🔁 40 💬 3 📌 8
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Sex-specific astrocyte regulation of spinal motor circuits by Nkx6.1 Astrocytes play essential roles in functioning neuronal circuits and are regulated by regional transcription factors (TFs). Bosquez-Huerta et al. found that the TF Nkx6.1 is specifically expressed in astrocytes of the ventral spinal cord and that its deletion results in sex-specific effects on astrocyte morphology and spinal motor circuits.

Very interesting stuff: sex differences intersect with region-specific transcriptional programs to regulate #astrocyte function www.cell.com/cell-reports...

30.12.2024 12:19 👍 26 🔁 6 💬 0 📌 0
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Les #cellules #gliales sont à l’honneur dans la Lettre des Neurosciences qui vient de sortir !!!!
👉 www.neurosciences.asso.fr/lalettre/ind...

10.12.2024 15:59 👍 11 🔁 3 💬 0 📌 1
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Glialovers: pls see our recent review on „Brain stars take the lead during critical periods of early postnatal brain development: relevance of astrocytes in health and mental disorders“ for @molpsychiatry with Eugenia Vivi - hope you enjoy the reading 🙂

rdcu.be/dYVTL

02.12.2024 20:46 👍 36 🔁 15 💬 0 📌 1
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Symmetry in Frontal But Not Motor and Somatosensory Cortical Projections The neocortex and striatum are topographically organized for sensory and motor functions. While sensory and motor areas are lateralized for touch and motor control, respectively, frontal areas are inv...

www.jneurosci.org/content/44/3...

28.11.2024 13:55 👍 2 🔁 0 💬 0 📌 0

Hi, nice starter pack, could I be added to the list ?

22.11.2024 10:06 👍 0 🔁 0 💬 1 📌 0
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Neuro-oncology Join the conversation

There are a lot of excellent Starter Packs available, but I didn’t see one focused on Neuro-oncology.

If you want to be added to this list, please reply below!

go.bsky.app/VgzHLtt

19.11.2024 09:35 👍 29 🔁 12 💬 25 📌 0
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Fantastic work by @peruhlen.bsky.social and @kanashigeaki.bsky.social, with a beautiful cover in Science that tells it all!

www.science.org/doi/10.1126/...

21.11.2024 21:26 👍 63 🔁 16 💬 1 📌 0

some great starter packs for the #glia, #astrocyte, #oligodendrocyte, #microglia, #neuro researcher: gliasky, astrocytesky, microglia
But if you also like interactions between celltypes, please help this starter pack get started. Maybe someone can connect all of us in a feed?

go.bsky.app/MHtJzeC

17.11.2024 20:35 👍 88 🔁 49 💬 35 📌 1

Hello, I will be happy to join the group

21.11.2024 11:29 👍 0 🔁 0 💬 0 📌 0
Flyer saying: Call for speakers- Astrocyte Cafe 3rd edition/ Starting in January 2025 - online. Email: astrocytecafe@gmail.com

Flyer saying: Call for speakers- Astrocyte Cafe 3rd edition/ Starting in January 2025 - online. Email: astrocytecafe@gmail.com

Sooo, there are still a few spots available if you want to give a talk at the third edition of #AstrocyteCafe 😏

#AstrocyteCafe is a FREE monthly seminars starting from January 2025!

Speakers can be of any career stage: just send us an email with your topic to astrocytecafe@gmail.com!😍

19.11.2024 23:55 👍 28 🔁 17 💬 0 📌 0

Is it possible to join this group?

18.11.2024 13:16 👍 0 🔁 0 💬 0 📌 0

We have a few more spots on this #bluesky starter. Who else should we include? Please suggest

#brain
#development
#neurodevelopment

go.bsky.app/SxcKi5z

18.11.2024 00:10 👍 24 🔁 11 💬 25 📌 0

Could I join the group ?

18.11.2024 08:04 👍 1 🔁 0 💬 1 📌 0

There are lots of us missing, but so many joining so quickly

Please do share, and comment below to be added

go.bsky.app/5f2V6L6

(microglia starter pack also here by @mancusorenzo.bsky.social - bsky.app/starter-pack...)

17.11.2024 19:08 👍 84 🔁 51 💬 52 📌 1