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Bertrand Benazeraf

@bertrandbenazeraf.bsky.social
1.2K followers 680 following 30 posts

Developmental Biologist, Team Leader, Toulouse. Morphogenesis, Interdisciplinarity, Timelapse, Bird embryos 🐥 my positions, likes, and RT are personals.

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Reposted by Bertrand Benazeraf
Jean Léon Maître @maitrejl.bsky.social · 06/10/2026
📣Our department is hiring a new group leader!📣 Want to start your team in a vibrant scientific environment in the center of Paris? I was very lucky to do that 10 years ago, reach out if you have any question. Apply by December 18th: jpi-recruitment-curie-umr3215-u934.curie.fr
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Denis Krndija @deniskrndija.bsky.social · 22/09/2026
A happy update to this preprint: our work is now published in Nature Communications! Fair and transparent peer review genuinely made the paper stronger – many thanks to the reviewers for pushing us to go deeper into the mechanics 🔩⚙️ www.nature.com/articles/s41...
nature.com
Goblet cells mechanically breach the epithelial barrier in gut homeostasis - Nature Communications
This study shows that goblet cells physically compress neighboring intestinal cells, creating fractures in cell–cell junctions that weaken epithelial cohesion, increase gut permeability and reveal how...
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Ben Steventon @bensteventon.bsky.social · 22/09/2026
Super happy to see Carlos’s work highlighted in Development. He figured out how the notochord uses Yap signaling to balance the rate of progenitor entry vs anterior expansion
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Nicolas Di-Poi @nicolasdipoi.bsky.social · 22/09/2026
Our collaborative paper on snake coiling is now out in the latest issue of @currentbiology.bsky.social and featured on the cover! 🎉 Delighted to see our work highlighted this way. You can read it here: authors.elsevier.com/c/1ni9h3QW8S... @helsinki-biotech.bsky.social @helsinki.fi
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CNRS Biologie @cnrsbiologie.bsky.social · 30/07/2026
#ResultatScientifique🔎| Comment la forme des cellules façonne l’intestin ? Une étude révèle le rôle des forces mécaniques dans la protection de cette barrière ▶️ buff.ly/ph86JyC ✍️ @deniskrndija.bsky.social 📕 @natcomms.nature.com 🤝 @cnrs.fr @cbitoulouse.bsky.social
buff.ly
Quand la forme des cellules fragilise la barrière intestinale
L’intest
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jared toettcher @toettch.bsky.social · 24/07/2026
New Toettchlab paper alert! Harrison Oatman just published his beautiful work combining software design for "smart" microscopy+optogenetics and some really beautiful work understanding EGFR-driven collective cell migration. www.cell.com/cell-systems...
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Carolina Parada-Borja @caroparadab.bsky.social · 22/07/2026
Heterochronic limb patterning in marsupials reveals flexibility in the processes underlying lateral plate mesoderm morphogenesis | Science Advances www.science.org/doi/10.1126/...
science.org
Heterochronic limb patterning in marsupials reveals flexibility in the processes underlying lateral plate mesoderm morphogenesis
Accelerated limb formation in marsupials reveals canonical developmental landmarks aren’t strict prerequisites for initiation.
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Mike Piacentino @mikepiacentino.bsky.social · 21/07/2026
Come join us! 🔬🐣 The Piacentino Lab at Johns Hopkins @hopkinsmedicine.bsky.social is recruiting a postdoc to study membrane lipids, cell migration, and invasion in neural crest and embryonic models! @socdevbio.bsky.social @ascbiology.bsky.social #devbiol #cellbio #lipids
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Alex Merz 🇺🇸🇨🇦🇺🇦 @merz.bsky.social · 20/07/2026
If George von Dassow (an alum of our grad program, natch!) is on a paper, you know the microscopy is gonna be stunning.
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Melanie D. White @melaniedwhite.bsky.social · 17/07/2026
Happy #FluorescenceFriday! 🔥🧪🔬 A blaze of neural crest cells migrates through a developing quail embryo on one of embryonic development's most epic journeys. Beautifully captured by @vanderspuy.bsky.social 👩‍🔬🐣 #Devbio
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Paul Francois @pfrancois.bsky.social · 14/07/2026
New paper 🧵 What if the "landscape" that guides cell differentiation isn't fixed, but is sculpted, in real time, by the very cells moving through it? We call this a 'sandscape' : grains of sand that carve dunes as they move, while the dunes' shape simultaneously steers where the grains go next.
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 02/07/2026
Congratulations! Great experimental system to answer fundamental questions!
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James Briscoe @jamesbriscoe.bsky.social · 01/07/2026
New in @dev-journal.bsky.social: how tissue shape tells cells what to become Using human stem-cell neuruloids, we show how that physical boundaries encode positional information that drives cell fate patterning in a model of trunk formation A thread 🧵 journals.biologists.com/dev/article/...
journals.biologists.com
Boundary constraints can determine pattern emergence
Summary: A reaction-diffusion mechanism recapitulates pattern emergence in an in vitro model of neuromesodermal progenitors under a variety of boundary and geometrical perturbations.
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Matt Towers @matt-towers.bsky.social · 02/07/2026
Pleased to share our latest! We show that the chick limb can be directed to recapitulate key stages in mammalian evolution, providing a unifying model for digit patterning across amniotes. Preprint: www.biorxiv.org/content/10.6... Video summary: www.youtube.com/watch?v=fvL_...
biorxiv.org
Transforming avian to mammalian modes of digit patterning
How a conserved embryonic organiser-the Sonic hedgehog (Shh)-expressing Zone of Polarising Activity (ZPA)-generates diverse limb architectures in amniotes remains a central problem in evolutionary and...
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allen institute @alleninstitute.org · 26/06/2026
New in @natmethods.nature.com: a new human stem cell model of EMT lets us watch cells transition in both 2D and 3D and shows human stem cells can undergo the transition differently depending on how they are grown. 🔗 doi.org/10.1038/s41592-026-03096-9
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 19/06/2026
Bravo Callum and the team !
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 06/05/2026
Congratulations! It looks amazing!
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Ali Seleit @aliseleit.bsky.social · 05/05/2026
(1/15) Thrilled to share new Evo-Devo work where we address the molecular, cellular & morphometric basis of an extreme axis segmentation program in the Japanese eel — an animal that forms 120 vertebrae.
biorxiv.org
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Crystal Rogers, PhD @rogerslabucd.bsky.social · 06/05/2026
Please check out our new preprint! Together with @sarathomasy.bsky.social and led by DVM/PhD candidate Raneesh Ramarapu, we used 3D imaging + quantitative analysis to show how the corneal endothelium maintains a stable layer and refines hexagonal packing during development.
(Left panels) Modeling of nuclei organization at 11 and 16 days of corneal development in an avian embryo. (Right panels) IHC for N-cadherin (yellow) and ZO-1 in 3D reconstruction of corneal cells at days 11 and 16. Nuclei are magenta.
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 04/05/2026
An important topic (certainly close to our hearts): how slightly different progenitors may cooperate and synergize to produce robust collective decisions. Thanks, Alfonso, for putting these different pieces of work into perspective!
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 02/05/2026
Yes ! It is a lot about being different, helping each others, and taking decision collectively ! ✌️👍
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Alfonso Martinez Arias @amartinezarias.bsky.social · 02/05/2026
A clear/significant finding derived from the single cell (sc) analysis of biological systems has been the realization that phenotypically homogeneous populations are heterogeneous at the level of gene expression (GE). www.cell.com/fulltext/S00... 🧵
cell.com
Nature, Nurture, or Chance: Stochastic Gene Expression and Its Consequences
Gene expression is a fundamentally stochastic process, with randomness in transcription and translation leading to cell-to-cell variations in mRNA and protein levels. This variation appears in organis...
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 27/04/2026
More insights into junctional neurulation using the bird embryo as a model system! 🐣
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Eirini Maniou @emaniou.bsky.social · 26/03/2026
Excited to share our new publication on the mechanics of cranial neural tube closure. A really enjoyable and fruitful collaboration bridging Developmental Biology and biophysical modelling. Take a look here! www.cell.com/current-biol...
cell.com
Mechanosensitive feedback organizes cell shape and motion during hindbrain neuropore morphogenesis
Pérez-Verdugo et al. show that hindbrain neuropore closure is driven by surface ectoderm actomyosin purse-string tension and active migration. These forces create reproducible patterns of cell elongat...
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Turlier lab @turlierlab.bsky.social · 13/03/2026
Excited to start a new chapter with my team’s relocation to the Pink City, at @cbitoulouse.bsky.social! Looking forward to new scientific interactions on campus (@laas, LPT, IRIT, ANITI…) at the interface of biology, physics & computational science. @cnrsbiologie.bsky.social @occitanie.bsky.social
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Jonathan Froehlich @jjfroehlich.bsky.social · 11/03/2026
I started Awesome Life Science Resources: a curated list of resources on work culture, career, and communication for life scientists. Built for PhD students, postdocs, and PIs. Check it out: github.com/jjfroehlich/...
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Crystal Rogers, PhD @rogerslabucd.bsky.social · 07/03/2026
Please check out our new preprint! Using single cell analysis paired with HCR to visualize transcript localization we have identified cell and tissue-specific expression of various genes encoding tubulins, kifs, and dyneins during neural crest development!
A transverse section of a developing chicken embryo with tubb6 (orange), tubb3 (magenta) and sox9 (green) expression with DAPI.
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Ben Steventon @bensteventon.bsky.social · 19/02/2026
Happy to share this work from Carlos Camacho de la Maccora that reveals how rates of posterior progenitor addition and anterior vacuolation are balanced across the notochord. With Alberto Ceccarelli and @osvaldo-chara.bsky.social we present a model of long-range communication to provide robustness.
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Kristina Stapornwongkul @kstapornwongkul.bsky.social · 17/02/2026
We‘re looking for a motivated Master student to join our team! Do you want to optogenetically control metabolic activity to see how metabolism affects patterning and morphogenesis? 💡🧫🧬🔬 Then please apply! #optogenetics #metabolism #devbio #hESCs Please RT. Thank you!🙏
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 17/02/2026
Group Leader Call at the @cbitoulouse.bsky.social in Genome biology, projects at the interface with devbio will be given particular attention. please share :) cbi-toulouse.fr/wp-content/u...
cbi-toulouse.fr
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 10/02/2026
Congrats Ana, great tool! Well done !!!
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Ana Hernandez Rodriguez @analiahr.bsky.social · 09/02/2026
So excited to share that my 1st paper is published!! Read all about how to manipulate the #MechanicalProperties of tissues using our custom built TiFM! journals.biologists.com/dev/article/...
journals.biologists.com
TiFM2.0 – versatile mechanical measurement and actuation in live embryos
Summary: Precisely-controlled, sensitive cantilevers measure and perturb tissue forces and mechanical properties in their native locations in live embryos, providing a useful tool to study tissue mech...
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Elizabeth Manning @emmanning.bsky.social · 26/01/2026
Excited to finally share the final/final.doc version of our paper. It's been a journey, but very proud of the result. Well done to all involved, especially @elsieplace.bsky.social @kchinnaiya.bsky.social , @thomasdwkim.bsky.social, @sethblackshaw.bsky.social 👏👏 www.nature.com/articles/s41...
nature.com
Resolving forebrain developmental organisation by analysis of differential growth patterns - Nature Communications
Experiments on the embryonic chick brain reveal distinct directional growth patterns and a tripartite hypothalamus, challenging the classic segmented prosomere model and offering an updated view of ho...
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Angelo Iulianella @aineurolab.bsky.social · 16/11/2024
@devdynamics.bsky.social Welcome to Bluesky Developmental Dynamics, added to the Developmental Biology starter pack II. You can also patch in to more #DevBio folks by checking out the first Developmental Biology start pack here: go.bsky.app/M5AgJhn
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Angelo Iulianella @aineurolab.bsky.social · 19/12/2025
As 2025 comes to a close, my university (Dalhousie U in Halifax, Canada) is recruiting faculty, including outstanding early career researchers, and Canada Research Chairs. Applications are due January 19 2026 (was just notified today!). Please repost.
dal.ca
Dalhousie University is recruiting up to 30 tenure and tenure-track faculty positions
Backed by the Government of Canada’s $1.7 billion Global Impact+ Research Talent Initiative, Dalhousie University is undertaking one of the most ambitious research-leader recruitment efforts in its hi...
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Jean Léon Maître @maitrejl.bsky.social · 18/12/2025
📣 #Job alert! Looking to establish your own independent research in cell biology, development or evo-devo? The @cnrs.fr is recruiting 7 scientists in that area of research. Here are updated unofficial guidelines. Reach out to members of the committee if you have questions c3n-cn.fr/section-24-w...
c3n-cn.fr
Section 24 – External Competition – Coordination des instances du Comité National
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 09/12/2025
Congratulations Ina !
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Matt Towers @matt-towers.bsky.social · 03/11/2025
Excited to share a fantastic PhD opportunity combining interdisciplinary approaches with me, @alexgfletcher.bsky.social and @rorylcooper.bsky.social sky.social! Please share!
xgfletcher.bsky.social
Bluesky
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Ale Mongera @mongeralab.bsky.social · 11/09/2025
📣Our project, “Mechanometabolic Control of Vertebrate Limb Elongation,” has been funded by Wellcome! Over the next 8 years, we’ll collaborate with @manningresearch.bsky.social and Nathalie Agar’s group to understand the mechanics of ECM-rich mesenchymal tissues! Funded positions available!🎉
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 31/10/2025
Congratulations Ale :) I am glad to read that!
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 30/10/2025
Show time for paper #2 !!!
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 30/10/2025
And another great gut epithelium story from our cool neighbors !!!😎 @cbitoulouse.bsky.social
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Denis Krndija @deniskrndija.bsky.social · 08/10/2025
Ever wondered how adult organs preserve epithelial barrier integrity while continuously exposed to mechanical stress? We tackled this question in our new preprint – led by our brilliant PhD student Vishnu Krishnakumar! (1/11) 🔗 www.biorxiv.org/content/10.1...
biorxiv.org
Robust pan-junctional reinforcement preserves the gut epithelial barrier under mechanical stress
Epithelia are specialized tissue barriers that safeguard the organism's internal milieu from the hostile external environment, a function critically dependent on intercellular junctions. In the colon,...
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 29/10/2025
Congratulations @mtrani.bsky.social and @campaslab.bsky.social @jesseveenvliet.bsky.social labs !!! Looks great 🤩, impressive measurements !!! Looking forward to digging into it! I am curious: Where is the actin cap located in the mouse embryo, surrounding the whole PSM?
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Bertrand Benazeraf @bertrandbenazeraf.bsky.social · 01/10/2025
Great news! Congratulations !!!
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David Monniaux @monniauxd.bsky.social · 14/09/2025
Dear colleagues, positions at CNRS (and INRIA) will (in all probability) be announced this winter. By then it will however be too late to properly prepare an application. Recent PhDs, postdocs etc interested in such positions should get right now in contact with teams who would like to recruit them.
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Ina Sonnen @sonnenlab.bsky.social · 09/09/2025
Preprint alert! We combined microfluidics, proteomics, and RNA-seq to map spatiotemporal protein expression during mouse somitogenesis and found a novel regulatory strategy: dynamic antagonistic gradients fine-tune signalling strength. doi.org/10.1101/2025...
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Institut Jacques Monod @ijmonod.bsky.social · 09/09/2025
#JobOffer 💼 Cell and Molecular Biology Research Engineer (M/F) 📆 November 17th 📍Institut Jacques Monod / @spinalorga.bsky.social Apply on the CNRS job portal before September 29th 🔗 emploi.cnrs.fr/Offres/CDD/U...
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Melanie D. White @melaniedwhite.bsky.social · 29/08/2025
Bird’s eye view, literally. 🐦👁️ Glowing quail embryo eye for #FluorescenceFriday, #DevBio 🧪🔬
A microscope image showing a developing eye in a quail embryo. Actin is labelled in orange and nuclei are in cyan.
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gserranonajera.bsky.social @gserranonajera.bsky.social · 07/08/2025
Hi bsky! Do embryonic tissues have backup plans🔀? Gastruloids (model of body elongation) can build an axis through different cellular mechanisms when on adherent substrates instead of free floating. A case of developmental plasticity! w/ A. Delahaye & ‪@bensteventon.bsky.social‬ shorturl.at/v01DO
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